Bump to 4.1.5

Since it is possible alternative WebUI could be coded in languages other than English,
WebUI must be able to load user-provided webui_en.qm.
At least one translated string must exist in order to generate an usable .qm file.

.appveyor.yml

@@ -45,8 +45,7 @@ before_build:
   - CALL "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars32.bat"
   - SET PATH=%PATH%;c:\qbt\qt5_32\bin;%CACHE_DIR%\jom;
   # setup project
-  - COPY /Y "%CACHE_DIR%\winconf.pri" "%REPO_DIR%"
-  - COPY /Y "%CACHE_DIR%\winconf-msvc.pri" "%REPO_DIR%"
+  - COPY /Y "%CACHE_DIR%\conf.pri" "%REPO_DIR%"
   # workarounds
   - MKLINK /J "c:\qbt\base" "%CACHE_DIR%\base"
 

.gitignore

@@ -22,6 +22,7 @@ qrc_*.cpp
 ui_*.h
 *.moc
 src/lang/qbittorrent_*.qm
+src/webui/www/translations/webui_*.qm
 .DS_Store
 .qmake.stash
 src/qbittorrent.app

.travis.yml

@@ -3,7 +3,8 @@ language: cpp
 os:
   - linux
   - osx
-osx_image: xcode7.3
+
+dist: xenial
 
 env:
   matrix:
@@ -38,11 +39,6 @@ cache:
   directories:
     - $HOME/hombebrew_cache
 
-# opt-in Ubuntu Trusty
-dist: trusty
-# container-based builds
-sudo: false
-
 addons:
   coverity_scan:
     project:
@@ -54,34 +50,30 @@ addons:
     notification_email: sledgehammer999@qbittorrent.org
   apt:
     sources:
-      # sources list: https://github.com/travis-ci/apt-source-whitelist/blob/master/ubuntu.json
-      - ubuntu-toolchain-r-test
-      #- boost-latest
+      # sources list: https://github.com/travis-ci/apt-source-safelist/blob/master/ubuntu.json
       - sourceline: 'ppa:qbittorrent-team/qbittorrent-stable'
-      - sourceline: 'ppa:beineri/opt-qt551-trusty'
-      - sourceline: 'ppa:adrozdoff/cmake'
     packages:
-      # packages list: https://github.com/travis-ci/apt-package-whitelist/blob/master/ubuntu-precise
+      # packages list: https://github.com/travis-ci/apt-package-safelist/blob/master/ubuntu-trusty
       - [autoconf, automake, colormake]
-      - [cmake, ninja-build]
+      - [ninja-build]
       - libssl-dev
       - [libboost-dev, libboost-system-dev]
       - libtorrent-rasterbar-dev
-      - [qt55base, qt55svg, qt55tools]
-      - [gcc-6, g++-6]
+      - [qtbase5-dev, qttools5-dev-tools, libqt5svg5-dev]
 
 before_install:
   # only allow specific build for coverity scan, others will stop
   - if [ "$TRAVIS_BRANCH" = "$coverity_branch" ] && ! [ "$TRAVIS_OS_NAME" = "linux" -a "$lt_branch" = "RC_1_0" -a "$gui" = true -a "$build_system" = "qmake" ]; then exit ; fi
 
   - shopt -s expand_aliases
-  - alias make="colormake -j3" # Using nprocs/2 sometimes may fail (gcc is killed by system)
+  - alias make="colormake -j2" # Using nprocs/2 sometimes may fail (gcc is killed by system)
   - qbt_path="$HOME/qbt_install"
   - |
     if [ "$TRAVIS_OS_NAME" = "linux" ]; then
       qbtconf="$qbtconf --prefix="$qbt_path" PKG_CONFIG_PATH=/opt/qt55/lib/pkgconfig:$PKG_CONFIG_PATH"
     else
       qbtconf="$qbtconf --prefix="$qbt_path""
+      CXXFLAGS="$CXXFLAGS -Wno-unused-local-typedefs -Wno-inconsistent-missing-override"
     fi
 
   # options for specific branches
@@ -90,14 +82,6 @@ before_install:
     if [ "$TRAVIS_OS_NAME" = "linux" ]; then
       # setup virtual display for after_success target
       if [ "$gui" = true ]; then export "DISPLAY=:99.0" && /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -ac -screen 0 1280x1024x16 ; fi ;
-
-      # Qt 5
-      PATH=/opt/qt55/bin:${PATH}
-
-      if [ "$build_system" = "cmake" ]; then
-          COMPILER_VERSION=6
-          export CXX="${CXX}-${COMPILER_VERSION}" CC="${CC}-${COMPILER_VERSION}"
-      fi
     fi
 
   # print settings
@@ -121,34 +105,16 @@ install:
       # dependencies
       brew update > /dev/null
       brew outdated "pkg-config" || brew upgrade "pkg-config"
-      brew install colormake ccache zlib qt
+      brew install colormake ccache zlib qt libtorrent-rasterbar
       PATH="/usr/local/opt/ccache/libexec:$PATH"
       brew link --force zlib qt
 
-      wget https://builds.shiki.hu/homebrew/version
-      if ! cmp --quiet "version" "$HOME/hombebrew_cache/version" ; then
-        echo "Cached files are different from server. Downloading new ones."
-        # First delete old files
-        rm -r "$HOME/hombebrew_cache"
-        mkdir "$HOME/hombebrew_cache"
-        cp "version" $HOME/hombebrew_cache
-        cd "$HOME/hombebrew_cache"
-        wget https://builds.shiki.hu/homebrew/libtorrent-rasterbar.rb
-        wget https://builds.shiki.hu/homebrew/libtorrent-rasterbar-1.1.7+git20180422.3ede0b9c20+patched-configure.el_capitan.bottle.tar.gz
-      fi
-
-      # Copy custom libtorrent bottle to homebrew's cache so it can find and install it
-      # Also install our custom libtorrent formula by passing the local path to it
-      # These 2 files are restored from Travis' cache.
-      cp "$HOME/hombebrew_cache/libtorrent-rasterbar-1.1.7+git20180422.3ede0b9c20+patched-configure.el_capitan.bottle.tar.gz" "$(brew --cache)"
-      brew install "$HOME/hombebrew_cache/libtorrent-rasterbar.rb"
-
       if [ "$build_system" = "cmake" ]; then
         brew outdated cmake || brew upgrade cmake
         brew install ninja
 
-        ln -s /usr/local/opt/qt/mkspecs /usr/local/mkspecs
-        ln -s /usr/local/opt/qt/plugins /usr/local/plugins
+        sudo ln -s /usr/local/opt/qt/mkspecs /usr/local/mkspecs
+        sudo ln -s /usr/local/opt/qt/plugins /usr/local/plugins
       fi
 
       MY_CMAKE_OPENSSL_HINT="-DOPENSSL_ROOT_DIR=/usr/local/opt/openssl/"
@@ -156,6 +122,7 @@ install:
   - |
     if [ "$TRAVIS_BRANCH" != "$coverity_branch" ]; then
       export use_ccache=true
+      ccache -M 512M
       ccache -V && ccache --show-stats && ccache --zero-stats
     fi
 
@@ -166,21 +133,15 @@ script:
     if [ "$build_system" = "cmake" ]; then
       mkdir build
       cd build
-      cmake -DGUI=${gui} -DCMAKE_INSTALL_PREFIX="$qbt_path" "$MY_CMAKE_OPENSSL_HINT" \
+      if [ "$gui" = "false" ]; then
+        DISABLE_GUI_OPTION="-DCMAKE_DISABLE_FIND_PACKAGE_Qt5Widgets=ON"
+      fi
+      cmake $DISABLE_GUI_OPTION -DCMAKE_INSTALL_PREFIX="$qbt_path" "$MY_CMAKE_OPENSSL_HINT" \
         -G "Ninja" -DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE ..
       BUILD_TOOL="ninja"
     fi
     if [ "$build_system" = "qmake" ]; then
-      if [ "$TRAVIS_OS_NAME" = "osx" ]; then
-        # For some reason for RC_1_1 we need to also specify the OpenSSL compiler/linker flags
-        # Homebrew doesn't symlink OpenSSL for security reasons
-        ./bootstrap.sh && ./configure $qbtconf CXXFLAGS="$(PKG_CONFIG_PATH="/usr/local/opt/openssl/lib/pkgconfig:$PKG_CONFIG_PATH" pkg-config --cflags openssl)" LDFLAGS="$(PKG_CONFIG_PATH="/usr/local/opt/openssl/lib/pkgconfig:$PKG_CONFIG_PATH" pkg-config --libs openssl)"
-        sed -i "" -e "s/^\(CC.*&&\).*$/\1 $CC/" src/Makefile  # workaround for Qt & ccache: https://bugreports.qt.io/browse/QTBUG-31034
-        sed -i "" -e "s/^\(CXX.*&&\).*$/\1 $CXX/" src/Makefile
-        sed -i "" -e 's/^\(CXXFLAGS.*\)$/\1 -Wno-unused-local-typedefs -Wno-inconsistent-missing-override/' src/Makefile
-      else
-        ./bootstrap.sh && ./configure $qbtconf
-      fi
+      ./bootstrap.sh && ./configure $qbtconf CXXFLAGS="$CXXFLAGS"
       BUILD_TOOL="make"
     fi
   - $BUILD_TOOL && $BUILD_TOOL install

.tx/config

@@ -10,10 +10,18 @@ type = QT
 minimum_perc = 23
 mode = developer
 
-
 [qbittorrent.qbittorrentdesktop_master]
-source_file = src/icons/qBittorrent.desktop
+source_file = dist/unix/qbittorrent.desktop
 source_lang = en
 type = DESKTOP
 minimum_perc = 23
 mode = developer
+
+[qbittorrent.qbittorrent_webui]
+file_filter = src/webui/www/translations/webui_<lang>.ts
+lang_map = pt: pt_PT
+source_file = src/webui/www/translations/webui_en.ts
+source_lang = en
+type = QT
+minimum_perc = 23
+mode = developer

CMakeLists.txt

@@ -1,7 +1,6 @@
-cmake_minimum_required(VERSION 3.5)
-cmake_policy(VERSION 3.5)
+cmake_minimum_required(VERSION 3.9 FATAL_ERROR)
 
-message(WARNING "No official support for cmake build system. If it is broken, please submit patches!")
+message(AUTHOR_WARNING "If the build fails, please try the autotools/qmake method.")
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules)
 include(FunctionReadVersion)
@@ -27,32 +26,29 @@ add_definitions(-DQBT_VERSION_BUILD=${VER_BUILD})
 add_definitions(-DQBT_VERSION="v${PROJECT_VERSION}")
 add_definitions(-DQBT_VERSION_2="${PROJECT_VERSION}")
 
-if (UNIX AND NOT APPLE)
-    include(GNUInstallDirs)
-endif (UNIX AND NOT APPLE)
+include(GNUInstallDirs)
+include(FeatureSummary)
+
+# version requirements
+set(requiredBoostVersion 1.35)
+set(requiredQtVersion 5.5.1)
 
 if(WIN32)
     include(winconf)
 endif(WIN32)
 
-# we need options here, because they are used not only in "src" subdir, but in the "dist" dir too
-include(CMakeDependentOption)
 
-option(SYSTEM_QTSINGLEAPPLICATION
-    "Use the system qtsingleapplication library or shipped one otherwise")
-
-option(GUI "Allows to disable GUI for headless running. Disables QtDBus and the GeoIP Database" ON)
-
-option(WEBUI "Allows to disable the WebUI." ON)
-
-option(STACKTRACE "Enable stacktrace feature" ON)
-
-if (UNIX)
-    cmake_dependent_option(SYSTEMD "Install the systemd service file (headless only)" OFF
-        "NOT GUI" OFF)
-    cmake_dependent_option(DBUS "Enable use of QtDBus (GUI only)" ON "GUI" OFF)
-endif(UNIX)
+# we need options here, at the top level, because they are used not only in "src" subdir, but in the "dist" dir too
+include(CompileFeature)
 
+optional_compile_definitions(COUNTRIES_RESOLUTION FEATURE DESCRIPTION "Enable resolving peers IP addresses to countries"
+    DEFAULT ON DISABLED DISABLE_COUNTRIES_RESOLUTION)
+optional_compile_definitions(STACKTRACE FEATURE DESCRIPTION "Enable stacktraces"
+    DEFAULT ON ENABLED STACKTRACE)
+optional_compile_definitions(WEBUI FEATURE DESCRIPTION "Enables built-in HTTP server for headless use"
+    DEFAULT ON DISABLED DISABLE_WEBUI)
 
 add_subdirectory(src)
 add_subdirectory(dist)
+
+feature_summary(DESCRIPTION "\nConfiguration results:" WHAT ALL)

CODING_GUIDELINES.md

@@ -6,6 +6,31 @@ For programming languages other than C++ (e.g. JavaScript) used in this reposito
 **Note 2:** You can use the `uncrustify` program/tool to clean up any source file. Use it with the `uncrustify.cfg` configuration file found in the root folder.  
 **Note 3:** There is also a style for QtCreator but it doesn't cover all cases. In QtCreator `Tools->Options...->C++->Code Style->Import...` and choose the `codingStyleQtCreator.xml` file found in the root folder.  
 
+### Table Of Contents
+
+* [1. New lines & curly braces](#1-new-lines--curly-braces)
+  * [a. Function blocks, class/struct definitions, namespaces](#a-function-blocks-classstruct-definitions-namespaces)
+  * [b. Other code blocks](#b-other-code-blocks)
+  * [c. Blocks in switch's case labels](#c-blocks-in-switchs-case-labels)
+  * [d. If-else statements](#d-if-else-statements)
+  * [e. Single statement if blocks](#e-single-statement-if-blocks)
+  * [f. Acceptable conditions to omit braces](#f-acceptable-conditions-to-omit-braces)
+  * [g. Brace enclosed initializers](#g-brace-enclosed-initializers)
+* [2. Indentation](#2-indentation)
+* [3. File encoding and line endings](#3-file-encoding-and-line-endings)
+* [4. Initialization lists](#4-initialization-lists)
+* [5. Enums](#5-enums)
+* [6. Names](#6-names)
+  * [a. Type names and namespaces](#a-type-names-and-namespaces)
+  * [b. Variable names](#b-variable-names)
+  * [c. Private member variable names](#c-private-member-variable-names)
+* [7. Header inclusion order](#7-header-inclusion-order)
+* [8. Include guard](#8-include-guard)
+* [9. Misc](#9-misc)
+* [10. Git commit message](#10-git-commit-message)
+* [11. Not covered above](#11-not-covered-above)
+---
+
 ### 1. New lines & curly braces ###
 
 #### a. Function blocks, class/struct definitions, namespaces ####
@@ -165,11 +190,11 @@ QVariantMap map {{"key1", 5}, {"key2", 10}};
 ### 2. Indentation ###
 4 spaces.
 
-### 3. File encoding and line endings. ###
+### 3. File encoding and line endings ###
 
 UTF-8 and Unix-like line ending (LF). Unless some platform specific files need other encodings/line endings.
 
-### 4. Initialization lists. ###
+### 4. Initialization lists ###
 Initialization lists should be vertical. This will allow for more easily readable diffs. The initialization colon should be indented and in its own line along with first argument. The rest of the arguments should be indented too and have the comma prepended.
 ```c++
 myClass::myClass(int a, int b, int c, int d)
@@ -182,7 +207,7 @@ myClass::myClass(int a, int b, int c, int d)
 }
 ```
 
-### 5. Enums. ###
+### 5. Enums ###
 Enums should be vertical. This will allow for more easily readable diffs. The members should be indented.
 ```c++
 enum Days
@@ -197,7 +222,7 @@ enum Days
 };
 ```
 
-### 6. Names. ###
+### 6. Names ###
 All names should be camelCased.
 
 #### a. Type names and namespaces ####
@@ -231,7 +256,7 @@ class MyClass
 }
 ```
 
-### 7. Header inclusion order. ###
+### 7. Header inclusion order ###
 The headers should be placed in the following group order:
   1. Module header (in .cpp)
   2. C++ Standard Library headers
@@ -297,7 +322,7 @@ Example:
 #include "ui_examplewidget.h"
 ```
 
-### 8. Include guard. ###
+### 8. Include guard ###
 `#pragma once` should be used instead of "include guard" in new code:
 ```c++
 // examplewidget.h
@@ -313,7 +338,7 @@ class ExampleWidget : public QWidget
 
 ```
 
-### 9. Misc. ###
+### 9. Misc ###
 
 * Line breaks for long lines with operation:
 

Changelog

@@ -1,3 +1,169 @@
+* Mon Dec 24 2018 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v4.1.5
+    - FEATURE: Add checking_mem_usage option to AdvancedSettings (FranciscoPombal)
+    - FEATURE: Save torrents queue in separate file. Now a new file named 'queue' is created, saving on each line the infohash of each queued torrent in sorted order. (glassez)
+    - BUGFIX: Fix regression on resuming torrents without metadata (thalieht)
+    - BUGFIX: Reorder and rename Tracker list context menu option (Thomas Piccirello)
+    - BUGFIX: Rename Tracker List columns (Thomas Piccirello)
+    - BUGFIX: Show error message when Session failed to start (glassez)
+    - BUGFIX: Embedded tracker: Use ip parameter from tracker request if provided (Chocobo1)
+    - BUGFIX: Fix weekday names translations (Chocobo1)
+    - BUGFIX: Fix strings not translated (Chocobo1)
+    - WEBUI: Change qBittorrent exit message to HTML5 (Chocobo1)
+    - WEBUI: Revise CSP header (Chocobo1)
+    - WEBUI: Enforce referrer-policy in WebUI (Chocobo1)
+    - WEBUI: Add torrent name filtering to WebUI (Thomas Piccirello)
+    - WEBUI: Send numeric status without translation (Thomas Piccirello)
+    - WEBUI: Add WebUI Trackers context menu (Thomas Piccirello)
+    - WEBUI: Add DHT, PeX, and LSD to WebUI Tracker list (Thomas Piccirello)
+    - WEBUI: Add additional Tracker columns to WebUI (Thomas Piccirello)
+    - WEBUI: Bump Web API version
+    - WEBUI: Fix display bugs in WebUI Files tab. Remove <IE9 support (Thomas Piccirello)
+    - WEBUI: Fix incorrect priority value sent from WebUI (Thomas Piccirello)
+    - WEBUI: Set priority for multiple files in one WebAPI request (Thomas Piccirello)
+    - WEBUI: Match WebUI Peers table column order to GUI (Thomas Piccirello)
+    - WEBUI: Fetch data less frequently when torrents tab isn't visible (Thomas Piccirello)
+    - WEBUI: Add Search tab to WebUI (Thomas Piccirello)
+    - WEBUI: Add ability to pass urls to the webui download page (Thomas Piccirello)
+    - WEBUI: Fix JavaScript error (Tom Piccirello)
+    - WEBUI: Disallow setting a blank alternative WebUI location (Thomas Piccirello)
+    - WEBUI: Add slow torrent options (Thomas Piccirello)
+    - WEBUI: Add "Use alternative Web UI" option (Thomas Piccirello)
+    - WEBUI: Add "Apply rate limit to peers on LAN" option (Thomas Piccirello)
+    - WEBUI: Add email "From" option (Thomas Piccirello)
+    - WEBUI: Set WebUI download options using set preferences (Thomas Piccirello)
+    - WEBUI: Show list of categories on WebUI download page (Thomas Piccirello)
+    - WEBUI: Hide WebUI text input for custom monitor save locations (Thomas Piccirello)
+    - WEBUI: Add "When adding a torrent" options (Thomas Piccirello)
+    - WEBUI: Add WebUI Auto TMM options (Thomas Piccirello)
+    - WEBUI: Add speed limit icons to WebUI Speed options (Thomas Piccirello)
+    - WEBUI: Add WebUI Random port button and proxy unencrypted password notice (Thomas Piccirello)
+    - WEBUI: Replace WebUI Options fixed-width labels (Thomas Piccirello)
+    - WEBUI: Reorder WebUI options to match GUI (Thomas Piccirello)
+    - WEBUI: Allow WebUI sidebar to be collapsed (Thomas Piccirello)
+    - WEBUI: Show ellipsis when WebUI sidebar is too narrow (Thomas Piccirello)
+    - WEBUI: Fix WebUI bug on override of Start Download option.Closes #9855. (Tom Piccirello)
+    - WEBUI: Fix missing words in WebUI (Chocobo1)
+    - WEBUI: Add SameSite attribute to WebUI session cookie (Thomas Piccirello)
+    - WEBUI: Put WebUI security related options into a groupbox (Chocobo1)
+    - WEBUI: Add option for WebUI Host header validation (Chocobo1)
+    - WEBUI: Show icon in WebUI sorted column (Thomas Piccirello)
+    - RSS: Keep track of REPACK/PROPER downloads. Closes #9898. (Stephen Dawkins)
+    - SEARCH: Only instantiate SearchPluginManager as needed (Thomas Piccirello)
+    - MACOS: Make file icon look like other macOS icons (Nick Korotysh)
+    - MACOS: Save option to start minimized in Mac (thalieht)
+
+* Mon Nov 19 2018 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v4.1.4
+    - FEATURE: Recognize *.ts files as previewable (silver)
+    - FEATURE: Allow to disable speed graphs (dzmat)
+    - FEATURE: Clear LineEdit on ESC (silverqx)
+    - BUGFIX: Fix divide-by-zero crash (Chocobo1)
+    - BUGFIX: Remove speed limit checkbox in Options dialog (Chocobo1)
+    - BUGFIX: Fix speed graph "high speeds" bug (dzmat)
+    - BUGFIX: Don't update torrent status unnecessarily (glassez)
+    - BUGFIX: Improve force recheck of paused torrent (glassez)
+    - BUGFIX: Restore torrent in two steps (glassez)
+    - BUGFIX: Improve scaling of speed graphs (dzmat)
+    - BUGFIX: Add isNetworkFileSystem() detection on Windows. This allows network mounts to be monitored correctly by polling timer. (Chocobo1)
+    - BUGFIX: Reduce horizontal graphs resolution. Improves perfomance. (dzmat)
+    - BUGFIX: Don't recheck just checked torrent (mj-p, glassez)
+    - BUGFIX: Add SMB2 magic number (Chocobo1)
+    - BUGFIX: Restore startup perfomance to v4.1.2 times. Needs at least libtorrent 1.1.10 (sledgehammer999)
+    - BUGFIX: Make strings actually translatable (sledgehammer999)
+    - WEBUI: Handle downloading .torrent file as success (Tom Piccirello)
+    - WEBUI: Fix Alternative Web UI to be available (glassez)
+    - WEBUI: Consider empty locale setting as not set (glassez)
+    - WEBUI: Add free disk space to WebUI status bar (Thomas Piccirello)
+    - WEBUI: Add WebUI search API controller (Thomas Piccirello)
+    - WEBUI: Fix WebUI Auto TMM context menu bug (Thomas Piccirello)
+    - WEBUI: Use independent translation for WebUI (glassez)
+    - WEBUI: Add categories WebAPI (Thomas Piccirello)
+    - WEBUI: Fix minor JavaScript defects (Thomas Piccirello)
+    - WEBUI: Add locale to js file path (Thomas Piccirello)
+    - WEBUI: Translate WebUI torrents Status column (Thomas Piccirello)
+    - WEBUI: Bump Web API version
+    - RSS: Allow to disable downloading REPACK/PROPER matches (Stephen Dawkins)
+    - RSS: Improve RSS Feed updating (glassez)
+    - SEARCH: Allow resizing search filter in search job (thalieht)
+    - SEARCH: Improve parser for search engine versions.txt (Chocobo1)
+    - SEARCH: Update Python URLs (Chocobo1)
+    - SEARCH: Fix asking to install Python (Chocobo1)
+    - SEARCH: Reformat python code to be compliant with PEP8 (Chocobo1)
+    - OTHER: cmake: restore out-of-source build (Eugene Shalygin)
+    - OTHER: cmake: cmake: use C++14 when available (Eugene Shalygin)
+
+* Tue Sep 18 2018 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v4.1.3
+    - FEATURE: Preselect name without extension when renaming files (thalieht)
+    - FEATURE: Allow setting seq & first/last from context menu without metadata (thalieht)
+    - BUGFIX: Show "N/A" if there is no scrape (thalieht)
+    - BUGFIX: Save option about tracker favicons under correct key (sledgehammer999)
+    - BUGFIX: When file data are unreachable pause torrent and show "Missing Files" status (temporary fix) (sledgehammer999)
+    - BUGFIX: Don't disable DHT when using force proxy (Thomas Piccirello)
+    - BUGFIX: Correctly save torrent queue position/state/priority changes in fastresume (glassez, thalieht, sledgehammer999)
+    - BUGFIX: Fix icon height/width ratio (Chocobo1)
+    - BUGFIX: Fix values sorted wrong in "Last Activity" column (Chocobo1)
+    - BUGFIX: Replace png icons with svg (Chocobo1)
+    - WEBUI: Allow WebUI sidebar filters to be hidden (Thomas Piccirello)
+    - WEBUI: Increase WebUI Options initial height (Thomas Piccirello)
+    - WEBUI: Adjust WebUI Options form alignment (Thomas Piccirello)
+    - WEBUI: Fix WebUI unreachable issue (Chocobo1)
+    - WEBUI: Require torrent category creation to be explicit (Thomas Piccirello)
+    - WEBUI: Include category save path in web api sync data (Thomas Piccirello)
+    - WEBUI: Add save path and editing to WebUI new category dialog (Thomas Piccirello)
+    - WEBUI: Bump Web API version
+    - SEARCH: Refactor in searchjob to always color visited entries (thalieht)
+    - SEARCH: Set "enter" as shortcut to download the selected torrents in search job (thalieht)
+    - SEARCH: Add regex option in the search filter's context menu (thalieht)
+    - LINUX: Fix GUI scaling issue on Linux (Chocobo1)
+    - LINUX: Fix regression that broke installing desktop file (Eli Schwartz)
+    - OPENBSD: Better filesystem support for filewatcher (Elias M. Mariani)
+
+* Sun Aug 12 2018 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v4.1.2
+    - FEATURE: New options for "inhibit sleep" (Lukas Greib)
+    - FEATURE: Add option for regexps in the transferlist search filter's context menu (thalieht)
+    - FEATURE: Add async io threads option to AdvancedSettings (tjjh89017)
+    - FEATURE: Allow save resume interval to be disabled (Chocobo1)
+    - FEATURE: Add checkbox for recursive download dialog (Chocobo1)
+    - FEATURE: Add changelog link in program updater (Chocobo1)
+    - BUGFIX: Avoid allocating large memory when loading a .torrent file (Couchy)
+    - BUGFIX: Notify users on 1st time close/minimize to tray (sledgehammer999)
+    - BUGFIX: Fix I/O error after fetching magnet metadata (Chocobo1)
+    - BUGFIX: Never save resume data for already paused torrents (glassez)
+    - BUGFIX: Make ProgramUpdater upgrade to 64-bit qbt when running on 64-bit Windows (Chocobo1)
+    - BUGFIX: Put temporary files in qbt own temp folder (Chocobo1)
+    - BUGFIX: Avoid potentially setting the wrong piece priorities (Chocobo1)
+    - BUGFIX: Various code refactorings/improvements (Chocobo1, thalieht, glassez)
+    - BUGFIX: Add options "Download in sequential order" and "Download first and last pieces first" in AddNewTorrentDialog (Chocobo1)
+    - BUGFIX: Download favicon using appropriate protocol (glassez)
+    - BUGFIX: Apply proxy settings on DownloadManager creation (glassez)
+    - BUGFIX: Improve torrent initialization (glassez)
+    - BUGFIX: Save resume data on torrent change events (glassez)
+    - BUGFIX: Increase default resume data save interval (Chocobo1)
+    - BUGFIX: Work around crash when procesing recursive download. Closes #9086 (Chocobo1)
+    - BUGFIX: Reduce queries to python version (Chocobo1)
+    - BUGFIX: Disable certain mouse wheel events in Options dialog (Chocobo1)
+    - WEBUI: Send all rechecks in one request (Thomas Piccirello)
+    - WEBUI: Add WebUI Force Reannounce option (Thomas Piccirello)
+    - WEBUI: Create non-existing path in setLocationAction() (Goshik)
+    - WEBUI: Add WebUI support for Mac ⌘ (Command) key (Thomas Piccirello)
+    - WEBUI: Show current save path in 'Set location' window (Goshik)
+    - WEBUI: Fix WebUI cache behavior for css files (Chocobo1)
+    - WEBUI: Send Cache-Control header in WebUI responses (Chocobo1)
+    - WEBUI: Add form-action to CSP (Thomas Piccirello)
+    - WEBUI: Add upgrade-insecure-requests to CSP when HTTPS is enabled (Thomas Piccirello)
+    - WEBUI: Reset WebUI ban counter on login success (Chocobo1)
+    - WEBUI: Add logging messages in WebUI login action (Chocobo1)
+    - WEBUI: Add option to control CSRF protection (Chocobo1)
+    - WEBUI: Add option to control WebUI clickjacking protection (Chocobo1)
+    - RSS: Implement "Sequential downloading" feature. Closes #6835 (glassez)
+    - RSS: Don't use RSS feed URLs as base for file names. Closes #8399 (glassez)
+    - SEARCH: Add a name filter for search results (thalieht)
+    - SEARCH: Fix python version detection (Chocobo1)
+    - SEARCH: Clear python cache conditionally (Chocobo1)
+    - SEARCH: Properly normalize version string before parsing it (hannsen)
+    - WINDOWS: Turn on Control Flow Guard for MSVC builds (Chocobo1)
+    - MACOS: Replace deprecated function IOPMAssertionCreate() on macOS (Chocobo1)
+    - OTHER: Fix CMake build with QtSingleApplication. Fixes #9196 (Eugene Shalygin)
+
 * Sun May 27 2018 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v4.1.1
     - FEATURE: Add 'Moving' state for torrents being relocated/moved (sledgehammer999)
     - FEATURE: Show rechecking progress (sledgehammer999)

INSTALL

@@ -1,54 +1,49 @@
-qBittorrent - A BitTorrent client in C++ / Qt4
+qBittorrent - A BitTorrent client in C++ / Qt
 ------------------------------------------
 
-1) Compile and install qBittorrent with Qt4 Graphical Interface
+1) Compile and install qBittorrent with Qt graphical interface
 
   $ ./configure
   $ make && make install
   $ qbittorrent
 
-  will install and execute qBittorrent hopefully without any problems.
+  will install and execute qBittorrent.
 
   Dependencies:
-    - Qt >= 4.6.0 (libqtgui, libqtcore, libqtnetwork, libqtxml, libqtdbus/optional)
+    - Qt >= 5.5.1
 
-    - pkg-config executable
+    - pkg-config
 
-    - libtorrent-rasterbar by Arvid Norberg (>= 1.0.6)
-        -> http://www.libtorrent.net
-        Be careful: another library (the one used by rTorrent) uses a similar name.
+    - libtorrent-rasterbar >= 1.0.6 (by Arvid Norberg)
+        * https://www.libtorrent.org/
+        * Be careful: another library (the one used by rTorrent) uses a similar name
 
-    - libboost >= 1.35.x (libboost-system)
+    - Boost >= 1.35
 
-    - python >= 2.3 (needed by search engine)
-        * Run time only dependency
+    - Python >= 2.7.9 / 3.3.0 (optional, runtime only)
+        * Required by the internal search engine
 
-    - geoip-database (optional)
-        * If qBittorrent cannot find this database, it will try to resolve countries using the Internet but it will be a lot slower.
-        * Run time only dependency
-
-2) Compile and install qBittorrent without Qt4 Graphical interface
+2) Compile and install qBittorrent without Qt graphical interface
 
   $ ./configure --disable-gui
   $ make && make install
-  $ qbittorrent
+  $ qbittorrent-nox
 
-  will install and execute qBittorrent hopefully without any problems.
+  will install and execute qBittorrent.
 
   Dependencies:
-    - Qt >= 4.4.0 (libqt-devel, libqtcore, libqtnetwork)
+    - Qt >= 5.5.1
 
-    - pkg-config executable
+    - pkg-config
 
-    - libtorrent-rasterbar by Arvid Norberg (>= v1.0.6)
-        -> http://www.libtorrent.net
-        Be careful: another library (the one used by rTorrent) uses a similar name.
-
-    - libboost: libboost-filesystem, libboost-date-time, libboost-thread, libboost-serialization
+    - libtorrent-rasterbar >= 1.0.6 (by Arvid Norberg)
+        * https://www.libtorrent.org/
+        * Be careful: another library (the one used by rTorrent) uses a similar name
 
+    - Boost >= 1.35
 
 DOCUMENTATION:
-Please note that there is a documentation with a "compiling howto" at http://wiki.qbittorrent.org.
+Please note that there is a "Compilation" section at http://wiki.qbittorrent.org.
 
 ------------------------------------------
-Christophe Dumez <chris@qbittorrent.org>
+sledgehammer999 <sledgehammer999@qbittorrent.org>

cmake/Modules/CompileFeature.cmake

@@ -0,0 +1,22 @@
+# Helper function for coupling add_feature_info(), option(), and add_definitions()
+
+function(optional_compile_definitions _name)
+    set(options FEATURE)
+    set(oneValueArgs DESCRIPTION DEFAULT)
+    set(multiValueArgs ENABLED DISABLED)
+    cmake_parse_arguments(OCD "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+    option(${_name} "${OCD_DESCRIPTION}" ${OCD_DEFAULT})
+    if (${${_name}})
+        set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY COMPILE_DEFINITIONS ${OCD_ENABLED})
+    else()
+        set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY COMPILE_DEFINITIONS ${OCD_DISABLED})
+    endif()
+    if(${OCD_FEATURE})
+        add_feature_info(${_name} ${_name} "${OCD_DESCRIPTION}")
+    endif()
+endfunction()
+
+macro(feature_option _name _description _default)
+    option(${_name} "${_description}" ${_default})
+    add_feature_info(${_name} ${_name} "${_description}")
+endmacro()

cmake/Modules/FindLibtorrentRasterbar.cmake

@@ -99,6 +99,7 @@ list(FIND LibtorrentRasterbar_DEFINITIONS -DTORRENT_USE_OPENSSL LibtorrentRaster
 if(LibtorrentRasterbar_ENCRYPTION_INDEX GREATER -1)
     find_package(OpenSSL REQUIRED)
     set(LibtorrentRasterbar_LIBRARIES ${LibtorrentRasterbar_LIBRARIES} OpenSSL::SSL OpenSSL::Crypto)
+    list(APPEND LibtorrentRasterbar_INCLUDE_DIRS "${OPENSSL_INCLUDE_DIR}")
     set(LibtorrentRasterbar_OPENSSL_ENABLED ON)
 endif()
 
@@ -113,10 +114,10 @@ mark_as_advanced(LibtorrentRasterbar_INCLUDE_DIR LibtorrentRasterbar_LIBRARY
     LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES
     LibtorrentRasterbar_ENCRYPTION_INDEX)
 
-if (LibtorrentRasterbar_FOUND AND NOT TARGET LibtorrentRasterbar::LibTorrent)
-    add_library(LibtorrentRasterbar::LibTorrent UNKNOWN IMPORTED)
+if (LibtorrentRasterbar_FOUND AND NOT TARGET LibtorrentRasterbar::torrent-rasterbar)
+    add_library(LibtorrentRasterbar::torrent-rasterbar UNKNOWN IMPORTED)
 
-    set_target_properties(LibtorrentRasterbar::LibTorrent PROPERTIES
+    set_target_properties(LibtorrentRasterbar::torrent-rasterbar PROPERTIES
         IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
         IMPORTED_LOCATION "${LibtorrentRasterbar_LIBRARY}"
         INTERFACE_INCLUDE_DIRECTORIES "${LibtorrentRasterbar_INCLUDE_DIRS}"

cmake/Modules/FindQtSingleApplication.cmake

@@ -1,94 +1,79 @@
 # - Try to find the QtSingleApplication includes and library
 # which defines
 #
-# QTSINGLEAPPLICATION_FOUND - system has QtSingleApplication
-# QTSINGLEAPPLICATION_INCLUDE_DIR - where to find header QtSingleApplication
-# QTSINGLEAPPLICATION_LIBRARIES - the libraries to link against to use QtSingleApplication
-# QTSINGLEAPPLICATION_LIBRARY - where to find the QtSingleApplication library (not for general use)
+# QtSingleApplication_FOUND - system has QtSingleApplication
+# QtSingleApplication_INCLUDE_DIR - where to find header QtSingleApplication
+# QtSingleApplication_LIBRARIES - the libraries to link against to use QtSingleApplication
+# QtSingleApplication_LIBRARY - where to find the QtSingleApplication library (not for general use)
 
 # copyright (c) 2013 TI_Eugene ti.eugene@gmail.com
 #
 # Redistribution and use is allowed according to the terms of the FreeBSD license.
 
-SET(QTSINGLEAPPLICATION_FOUND FALSE)
+SET(QtSingleApplication_FOUND FALSE)
 
-IF(QT4_FOUND)
-    message(STATUS "Looking for Qt4 single application library")
-    FIND_PATH(QTSINGLEAPPLICATION_INCLUDE_DIR QtSingleApplication
-                # standard locations
-                /usr/include
-                /usr/include/QtSolutions
-                # qt4 location except mac's frameworks
-                "${QT_INCLUDE_DIR}/QtSolutions"
-                # mac's frameworks
-                ${FRAMEWORK_INCLUDE_DIR}/QtSolutions
-    )
+if (Qt5Widgets_FOUND)
+    set(_includeFileName qtsingleapplication.h)
+else()
+    set(_includeFileName qtsinglecoreapplication.h)
+endif()
 
-    SET(QTSINGLEAPPLICATION_NAMES ${QTSINGLEAPPLICATION_NAMES}
-        QtSolutions_SingleApplication-2.6 libQtSolutions_SingleApplication-2.6)
-    FIND_LIBRARY(QTSINGLEAPPLICATION_LIBRARY
-        NAMES ${QTSINGLEAPPLICATION_NAMES}
-        PATHS ${QT_LIBRARY_DIR}
-    )
-ELSEIF(Qt5Core_FOUND)
-    message(STATUS "Looking for Qt5 single application library")
-    FOREACH(TOP_INCLUDE_PATH in ${Qt5Core_INCLUDE_DIRS} ${FRAMEWORK_INCLUDE_DIR})
-        FIND_PATH(QTSINGLEAPPLICATION_INCLUDE_DIR QtSingleApplication ${TOP_INCLUDE_PATH}/QtSolutions)
+FOREACH(TOP_INCLUDE_PATH in ${Qt5Core_INCLUDE_DIRS} ${FRAMEWORK_INCLUDE_DIR})
+    FIND_PATH(QtSingleApplication_INCLUDE_DIR ${_includeFileName} ${TOP_INCLUDE_PATH}/QtSolutions)
 
-        IF(QTSINGLEAPPLICATION_INCLUDE_DIR)
-            BREAK()
-        ENDIF()
-    ENDFOREACH()
+    IF(QtSingleApplication_INCLUDE_DIR)
+        BREAK()
+    ENDIF()
+ENDFOREACH()
 
-    SET(QTSINGLEAPPLICATION_NAMES ${QTSINGLEAPPLICATION_NAMES}
-        Qt5Solutions_SingleApplication-2.6 libQt5Solutions_SingleApplication-2.6
-        QtSolutions_SingleApplication-2.6 libQtSolutions_SingleApplication-2.6)
-    GET_TARGET_PROPERTY(_QT5_CORELIBRARY Qt5::Core LOCATION)
-    GET_FILENAME_COMPONENT(_QT5_CORELIBRARYPATH ${_QT5_CORELIBRARY} PATH)
+SET(QtSingleApplication_NAMES ${QtSingleApplication_NAMES}
+    Qt5Solutions_SingleApplication-2.6 libQt5Solutions_SingleApplication-2.6
+    QtSolutions_SingleApplication-2.6 libQtSolutions_SingleApplication-2.6)
+GET_TARGET_PROPERTY(_QT5_CORELIBRARY Qt5::Core LOCATION)
+GET_FILENAME_COMPONENT(_QT5_CORELIBRARYPATH ${_QT5_CORELIBRARY} PATH)
 
-    FIND_LIBRARY(QTSINGLEAPPLICATION_LIBRARY
-        NAMES ${QTSINGLEAPPLICATION_NAMES}
-        PATHS ${_QT5_CORELIBRARYPATH}
-    )
-ENDIF()
+FIND_LIBRARY(QtSingleApplication_LIBRARY
+    NAMES ${QtSingleApplication_NAMES}
+    PATHS ${_QT5_CORELIBRARYPATH}
+)
 
-IF (QTSINGLEAPPLICATION_LIBRARY AND QTSINGLEAPPLICATION_INCLUDE_DIR)
+IF (QtSingleApplication_LIBRARY AND QtSingleApplication_INCLUDE_DIR)
 
-    SET(QTSINGLEAPPLICATION_LIBRARIES ${QTSINGLEAPPLICATION_LIBRARY})
-    SET(QTSINGLEAPPLICATION_FOUND TRUE)
+    SET(QtSingleApplication_LIBRARIES ${QtSingleApplication_LIBRARY})
+    SET(QtSingleApplication_FOUND TRUE)
 
     IF (CYGWIN)
         IF(BUILD_SHARED_LIBS)
-        # No need to define QTSINGLEAPPLICATION_USE_DLL here, because it's default for Cygwin.
+        # No need to define QtSingleApplication_USE_DLL here, because it's default for Cygwin.
         ELSE(BUILD_SHARED_LIBS)
-        SET (QTSINGLEAPPLICATION_DEFINITIONS -DQTSINGLEAPPLICATION_STATIC)
+        SET (QtSingleApplication_DEFINITIONS -DQTSINGLEAPPLICATION_STATIC)
         ENDIF(BUILD_SHARED_LIBS)
     ENDIF (CYGWIN)
 
-ENDIF (QTSINGLEAPPLICATION_LIBRARY AND QTSINGLEAPPLICATION_INCLUDE_DIR)
+ENDIF (QtSingleApplication_LIBRARY AND QtSingleApplication_INCLUDE_DIR)
 
-IF (QTSINGLEAPPLICATION_FOUND)
-  IF (NOT QtSingleApplication_FIND_QUIETLY)
-    MESSAGE(STATUS "Found QtSingleApplication: ${QTSINGLEAPPLICATION_LIBRARY}")
-    MESSAGE(STATUS "         includes: ${QTSINGLEAPPLICATION_INCLUDE_DIR}")
-  ENDIF (NOT QtSingleApplication_FIND_QUIETLY)
-ELSE (QTSINGLEAPPLICATION_FOUND)
+IF (QtSingleApplication_FOUND)
+    IF (NOT QtSingleApplication_FIND_QUIETLY)
+        MESSAGE(STATUS "Found QtSingleApplication: ${QtSingleApplication_LIBRARY}")
+        MESSAGE(STATUS "         includes: ${QtSingleApplication_INCLUDE_DIR}")
+    ENDIF (NOT QtSingleApplication_FIND_QUIETLY)
+    if(NOT TARGET QtSingleApplication::QtSingleApplication)
+        add_library(QtSingleApplication::QtSingleApplication UNKNOWN IMPORTED)
+        set_target_properties(QtSingleApplication::QtSingleApplication PROPERTIES
+            INTERFACE_INCLUDE_DIRECTORIES "${QtSingleApplication_INCLUDE_DIR}"
+            INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${QtSingleApplication_INCLUDE_DIR}"
+        )
+        if(EXISTS "${QtSingleApplication_LIBRARY}")
+        set_target_properties(QtSingleApplication::QtSingleApplication PROPERTIES
+            IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
+            IMPORTED_LOCATION "${QtSingleApplication_LIBRARY}")
+        endif()
+    endif(NOT TARGET QtSingleApplication::QtSingleApplication)
+
+ELSE (QtSingleApplication_FOUND)
   IF (QtSingleApplication_FIND_REQUIRED)
     MESSAGE(FATAL_ERROR "Could not find QtSingleApplication library")
   ENDIF (QtSingleApplication_FIND_REQUIRED)
-ENDIF (QTSINGLEAPPLICATION_FOUND)
+ENDIF (QtSingleApplication_FOUND)
 
-MARK_AS_ADVANCED(QTSINGLEAPPLICATION_INCLUDE_DIR QTSINGLEAPPLICATION_LIBRARY)
-
-if(NOT TARGET QtSingleApplication::QtSingleApplication)
-    add_library(QtSingleApplication::QtSingleApplication UNKNOWN IMPORTED)
-    set_target_properties(QtSingleApplication::QtSingleApplication PROPERTIES
-        INTERFACE_INCLUDE_DIRECTORIES "${QTSINGLEAPPLICATION_INCLUDE_DIR}"
-        INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${QTSINGLEAPPLICATION_INCLUDE_DIR}"
-    )
-    if(EXISTS "${QTSINGLEAPPLICATION_LIBRARY}")
-    set_target_properties(QtSingleApplication::QtSingleApplication PROPERTIES
-        IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
-        IMPORTED_LOCATION "${QTSINGLEAPPLICATION_LIBRARY}")
-    endif()
-endif(NOT TARGET QtSingleApplication::QtSingleApplication)
+MARK_AS_ADVANCED(QtSingleApplication_INCLUDE_DIR QtSingleApplication_LIBRARY)

cmake/Modules/QbtTargetSources.cmake

@@ -1,16 +1,17 @@
-# a helper function which appends source to the main qBt target
-# sources file names are relative to the the ${qBittorrent_SOURCE_DIR}
+# a helper function which appends source to the target
+# sources file names are relative to the the target source dir
 
-function (qbt_target_sources)
-    set (_sources_rel "")
-    foreach (_source IN ITEMS ${ARGN})
-        if (IS_ABSOLUTE "${_source}")
-            set(source_abs "${_source}")
+function (qbt_target_sources _target _scope)
+    get_target_property(targetSourceDir ${_target} SOURCE_DIR)
+    set(sourcesRelative "")
+    foreach(source IN ITEMS ${ARGN})
+        if(IS_ABSOLUTE "${source}")
+            set(sourceAbsolutePath "${source}")
         else()
-            get_filename_component(_source_abs "${_source}" ABSOLUTE)
+            get_filename_component(sourceAbsolutePath "${source}" ABSOLUTE)
         endif()
-        file (RELATIVE_PATH _source_rel "${qbt_executable_SOURCE_DIR}" "${_source_abs}")
-        list (APPEND _sources_rel "${_source_rel}")
+        file(RELATIVE_PATH sourceRelativePath "${targetSourceDir}" "${sourceAbsolutePath}")
+        list(APPEND sourcesRelative "${sourceRelativePath}")
     endforeach()
-    target_sources (qBittorrent PRIVATE "${_sources_rel}")
-endfunction (qbt_target_sources)
+    target_sources(${_target} ${_scope} "${sourcesRelative}")
+endfunction(qbt_target_sources)

cmake/Modules/QbtTranslations.cmake

@@ -0,0 +1,48 @@
+# macros to handle translation files
+
+# qbt_add_translations(<target> QRC_FILE <filename> TS_FILES <filenames>)
+# handles out of source builds for Qt resource files that include translations
+# The function generates translations out of the supplied list of .ts files in the build directory,
+# copies the .qrc file there, calls qt5_add_resources() adds its output to the target sources list.
+function(qbt_add_translations _target)
+    set(oneValueArgs QRC_FILE)
+    set(multiValueArgs TS_FILES)
+    cmake_parse_arguments(QBT_TR "" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+    get_target_property(_binaryDir ${_target} BINARY_DIR)
+
+    if (NOT QBT_TR_QRC_FILE)
+        message(FATAL_ERROR "QRC file is empty")
+    endif()
+    if (NOT QBT_TR_TS_FILES)
+        message(FATAL_ERROR "TS_FILES files are empty")
+    endif()
+
+    if(IS_ABSOLUTE "${QBT_TR_QRC_FILE}")
+        file(RELATIVE_PATH _qrcToTs "${CMAKE_CURRENT_SOURCE_DIR}" "${QBT_TR_QRC_FILE}")
+    else()
+        set(_qrcToTs "${QBT_TR_QRC_FILE}")
+    endif()
+
+    get_filename_component(_qrcToTsDir "${_qrcToTs}" DIRECTORY)
+
+    get_filename_component(_qmFilesBinaryDir "${CMAKE_CURRENT_BINARY_DIR}/${_qrcToTsDir}" ABSOLUTE)
+    # to make qt5_add_translation() work as we need
+    set_source_files_properties(${QBT_TR_TS_FILES} PROPERTIES OUTPUT_LOCATION "${_qmFilesBinaryDir}")
+    qt5_add_translation(_qmFiles ${QBT_TR_TS_FILES})
+
+    set(_qrc_dest_dir "${_binaryDir}/${_qrcToTsDir}")
+    set(_qrc_dest_file "${_binaryDir}/${QBT_TR_QRC_FILE}")
+
+    message(STATUS "copying ${QBT_TR_QRC_FILE} to ${_qrc_dest_dir}")
+    file(COPY ${QBT_TR_QRC_FILE} DESTINATION ${_qrc_dest_dir})
+
+    set_source_files_properties("${_qrc_dest_file}" PROPERTIES
+        GENERATED True
+        OBJECT_DEPENDS "${_qmFiles}")
+
+    # With AUTORCC enabled rcc is ran by cmake before language files are generated,
+    # and thus we call rcc explicitly
+    qt5_add_resources(_resources "${_qrc_dest_file}")
+    target_sources(${_target} PRIVATE "${_resources}")
+endfunction()

cmake/Modules/winconf-mingw.cmake

@@ -1,9 +1,9 @@
-if (STACKTRACE_WIN)
+if (STACKTRACE)
     if ("${WINXXBITS}" NOT STREQUAL "Win64")
         add_compile_options(-fno-omit-frame-pointer)
     endif ("${WINXXBITS}" NOT STREQUAL "Win64")
     link_libraries(libdbghelp  -Wl,--export-all-symbols)
-endif (STACKTRACE_WIN)
+endif (STACKTRACE)
 
 if (("${CMAKE_BUILD_TYPE}" STREQUAL "Debug") OR ("${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo"))
     link_libraries(-Wl,--dynamicbase)

cmake/Modules/winconf-msvc.cmake

@@ -1,4 +1,4 @@
-if (STACKTRACE_WIN)
+if (STACKTRACE)
     if ("${WINXXBITS}" STREQUAL "Win64")
         add_compile_options(-Zi)
     else ("${WINXXBITS}" STREQUAL "Win64")
@@ -6,7 +6,7 @@ if (STACKTRACE_WIN)
         add_compile_options(-Oy-)
     endif ("${WINXXBITS}" STREQUAL "Win64")
     link_libraries(dbghelp.lib)
-endif (STACKTRACE_WIN)
+endif (STACKTRACE)
 
 # Enable Wide characters
 add_definitions(-DTORRENT_USE_WPATH)

conf.pri.in

@@ -5,6 +5,8 @@ BINDIR = @EXPAND_BINDIR@
 DATADIR = @EXPAND_DATADIR@
 MANPREFIX = @EXPAND_MANDIR@
 
+QMAKE_CC = @QBT_CC@
+QMAKE_CXX = @QBT_CXX@
 QMAKE_CXXFLAGS += @QBT_CONF_EXTRA_CFLAGS@
 
 EXTERNAL_INCLUDES = @QBT_CONF_INCLUDES@

conf.pri.windows

@@ -50,6 +50,8 @@ DEFINES += BOOST_USE_WINAPI_VERSION=0x0501
 #DEFINES += BOOST_ASIO_SEPARATE_COMPILATION
 # Enable if building against libtorrent 1.0.x (RC_1_0) (dynamic linking)
 #DEFINES += BOOST_ASIO_DYN_LINK
+# Enable if encountered build error with boost version <= 1.59
+#DEFINES += BOOST_NO_CXX11_RVALUE_REFERENCES
 
 # Enable if building against libtorrent 1.1.x (RC_1_1)
 # built with this flag defined
@@ -59,3 +61,9 @@ DEFINES += BOOST_USE_WINAPI_VERSION=0x0501
 
 # Enable stack trace support
 CONFIG += stacktrace
+
+win32-msvc* {
+    QMAKE_CXXFLAGS += "/guard:cf"
+    QMAKE_LFLAGS += "/guard:cf"
+    QMAKE_LFLAGS_RELEASE += "/OPT:REF /OPT:ICF"
+}

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for qbittorrent v4.1.1.
+# Generated by GNU Autoconf 2.69 for qbittorrent v4.1.5.
 #
 # Report bugs to <bugs.qbittorrent.org>.
 #
@@ -580,8 +580,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='qbittorrent'
 PACKAGE_TARNAME='qbittorrent'
-PACKAGE_VERSION='v4.1.1'
-PACKAGE_STRING='qbittorrent v4.1.1'
+PACKAGE_VERSION='v4.1.5'
+PACKAGE_STRING='qbittorrent v4.1.5'
 PACKAGE_BUGREPORT='bugs.qbittorrent.org'
 PACKAGE_URL='https://www.qbittorrent.org/'
 
@@ -595,6 +595,8 @@ QBT_REMOVE_CONFIG
 QBT_ADD_CONFIG
 QBT_CONF_EXTRA_CFLAGS
 QBT_CONF_INCLUDES
+QBT_CXX
+QBT_CC
 EXPAND_MANDIR
 EXPAND_DATADIR
 EXPAND_BINDIR
@@ -626,7 +628,6 @@ am__nodep
 AMDEPBACKSLASH
 AMDEP_FALSE
 AMDEP_TRUE
-am__quote
 am__include
 DEPDIR
 am__untar
@@ -709,7 +710,8 @@ PACKAGE_VERSION
 PACKAGE_TARNAME
 PACKAGE_NAME
 PATH_SEPARATOR
-SHELL'
+SHELL
+am__quote'
 ac_subst_files=''
 ac_user_opts='
 enable_option_checking
@@ -1297,7 +1299,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures qbittorrent v4.1.1 to adapt to many kinds of systems.
+\`configure' configures qbittorrent v4.1.5 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1368,7 +1370,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of qbittorrent v4.1.1:";;
+     short | recursive ) echo "Configuration of qbittorrent v4.1.5:";;
    esac
   cat <<\_ACEOF
 
@@ -1503,7 +1505,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-qbittorrent configure v4.1.1
+qbittorrent configure v4.1.5
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1642,7 +1644,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by qbittorrent $as_me v4.1.1, which was
+It was created by qbittorrent $as_me v4.1.5, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -3274,7 +3276,7 @@ IFS=$ac_save_IFS
 case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
-am__api_version='1.15'
+am__api_version='1.16'
 
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -3700,45 +3702,45 @@ DEPDIR="${am__leading_dot}deps"
 
 ac_config_commands="$ac_config_commands depfiles"
 
-
-am_make=${MAKE-make}
-cat > confinc << 'END'
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
+$as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
+cat > confinc.mk << 'END'
 am__doit:
-	@echo this is the am__doit target
+	@echo this is the am__doit target >confinc.out
 .PHONY: am__doit
 END
-# If we don't find an include directive, just comment out the code.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
-$as_echo_n "checking for style of include used by $am_make... " >&6; }
 am__include="#"
 am__quote=
-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# Ignore all kinds of additional output from 'make'.
-case `$am_make -s -f confmf 2> /dev/null` in #(
-*the\ am__doit\ target*)
-  am__include=include
-  am__quote=
-  _am_result=GNU
-  ;;
-esac
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
-   echo '.include "confinc"' > confmf
-   case `$am_make -s -f confmf 2> /dev/null` in #(
-   *the\ am__doit\ target*)
-     am__include=.include
-     am__quote="\""
-     _am_result=BSD
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
+   (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+  case $?:`cat confinc.out 2>/dev/null` in #(
+  '0:this is the am__doit target') :
+    case $s in #(
+  BSD) :
+    am__include='.include' am__quote='"' ;; #(
+  *) :
+    am__include='include' am__quote='' ;;
+esac ;; #(
+  *) :
      ;;
-   esac
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
-$as_echo "$_am_result" >&6; }
-rm -f confinc confmf
+esac
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
+  fi
+done
+rm -f confinc.* confmf.*
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
+$as_echo "${_am_result}" >&6; }
 
 # Check whether --enable-dependency-tracking was given.
 if test "${enable_dependency_tracking+set}" = set; then :
@@ -3820,7 +3822,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='qbittorrent'
- VERSION='v4.1.1'
+ VERSION='v4.1.5'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -3850,8 +3852,8 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 
 # For better backward compatibility.  To be removed once Automake 1.9.x
 # dies out for good.  For more background, see:
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 mkdir_p='$(MKDIR_P)'
 
 # We need awk for the "check" target (and possibly the TAP driver).  The
@@ -4158,7 +4160,7 @@ END
 Aborting the configuration process, to ensure you take notice of the issue.
 
 You can download and install GNU coreutils to get an 'rm' implementation
-that behaves properly: <http://www.gnu.org/software/coreutils/>.
+that behaves properly: <https://www.gnu.org/software/coreutils/>.
 
 If you want to complete the configuration process using your problematic
 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
@@ -4170,7 +4172,9 @@ END
 fi
 
 
-
+# use compiler from env variables if available
+QBT_CC="$CC"
+QBT_CXX="$CXX"
 
 # Define --wth-* and --enable-* arguments
 
@@ -4997,10 +5001,10 @@ $as_echo "$as_me: Your boost libraries seems to old (version $_version)." >&6;}
 $as_echo "#define HAVE_BOOST /**/" >>confdefs.h
 
         # execute ACTION-IF-FOUND (if present):
-        { $as_echo "$as_me:${as_lineno-$LINENO}: Boost CPPFLAGS: \"$BOOST_CPPFLAGS\"
-                Boost LDFLAGS: \"$BOOST_LDFLAGS\"" >&5
-$as_echo "$as_me: Boost CPPFLAGS: \"$BOOST_CPPFLAGS\"
-                Boost LDFLAGS: \"$BOOST_LDFLAGS\"" >&6;}
+        { $as_echo "$as_me:${as_lineno-$LINENO}: Boost CXXFLAGS: \"$BOOST_CPPFLAGS\"" >&5
+$as_echo "$as_me: Boost CXXFLAGS: \"$BOOST_CPPFLAGS\"" >&6;}
+               { $as_echo "$as_me:${as_lineno-$LINENO}: Boost LDFLAGS: \"$BOOST_LDFLAGS\"" >&5
+$as_echo "$as_me: Boost LDFLAGS: \"$BOOST_LDFLAGS\"" >&6;}
     fi
 
     CPPFLAGS="$CPPFLAGS_SAVED"
@@ -5011,9 +5015,31 @@ fi
 
 
 
-CPPFLAGS="$BOOST_CPPFLAGS $CPPFLAGS"
+CXXFLAGS="$BOOST_CPPFLAGS $CXXFLAGS"
 LDFLAGS="$BOOST_LDFLAGS $LDFLAGS"
 
+# add workaround for problematic boost version
+# taken from ax_boost_base.m4
+
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <boost/version.hpp>
+int
+main ()
+{
+(void) ((void)sizeof(char[1 - 2*!!((BOOST_VERSION) < (106000))]));
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  QBT_ADD_DEFINES="$QBT_ADD_DEFINES BOOST_NO_CXX11_RVALUE_REFERENCES"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 
 
 # Check whether --with-boost-system was given.
@@ -5366,7 +5392,7 @@ else
 	libtorrent_LIBS=$pkg_cv_libtorrent_LIBS
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-	CPPFLAGS="$libtorrent_CFLAGS $CPPFLAGS"
+	CXXFLAGS="$libtorrent_CFLAGS $CXXFLAGS"
                   LIBS="$libtorrent_LIBS $LIBS"
 fi
 
@@ -5459,10 +5485,116 @@ else
 	zlib_LIBS=$pkg_cv_zlib_LIBS
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-	CPPFLAGS="$zlib_CFLAGS $CPPFLAGS"
+	CXXFLAGS="$zlib_CFLAGS $CXXFLAGS"
                  LIBS="$zlib_LIBS $LIBS"
 fi
 
+# Check if already in >= C++11 mode because of the flags returned by one of the above packages
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler is using C++11 or later mode" >&5
+$as_echo_n "checking if compiler is using C++11 or later mode... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+            #ifndef __cplusplus
+            #error "This is not a C++ compiler"
+            #elif __cplusplus < 201103L
+            #error "This is not a C++11 compiler"
+            #endif
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+                   QBT_CXX11_FOUND="yes"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+                   QBT_CXX11_FOUND="no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+# In case of no, check if the compiler can support at least C++11
+# and if yes, enable it leaving a warning to the user
+if test "x$QBT_CXX11_FOUND" = "xno"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler supports C++11" >&5
+$as_echo_n "checking if compiler supports C++11... " >&6; }
+       TMP_CXXFLAGS="$CXXFLAGS"
+       CXXFLAGS="$CXXFLAGS -std=c++11"
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+            #ifndef __cplusplus
+            #error "This is not a C++ compiler"
+            #elif __cplusplus < 201103L
+            #error "This is not a C++11 compiler"
+            #endif
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+                         { $as_echo "$as_me:${as_lineno-$LINENO}: checking if C++11 is disabled by the set compiler flags" >&5
+$as_echo_n "checking if C++11 is disabled by the set compiler flags... " >&6; }
+                         # prepend the flag so it won't override conflicting user defined flags
+                         CXXFLAGS="-std=c++11 $TMP_CXXFLAGS"
+                         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+            #ifndef __cplusplus
+            #error "This is not a C++ compiler"
+            #elif __cplusplus < 201103L
+            #error "This is not a C++11 compiler"
+            #endif
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+                                            CXXFLAGS="$TMP_CXXFLAGS -std=c++11"
+                                            { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C++11 mode is now force enabled.
+Make sure you use the same C++ mode for qBittorrent and its dependencies.
+To explicitly set qBittorrent to a later mode use CXXFLAGS.
+Example: \`CXXFLAGS=\"\$CXXFLAGS -std=c++14\" ./configure\`" >&5
+$as_echo "$as_me: WARNING: C++11 mode is now force enabled.
+Make sure you use the same C++ mode for qBittorrent and its dependencies.
+To explicitly set qBittorrent to a later mode use CXXFLAGS.
+Example: \`CXXFLAGS=\"\$CXXFLAGS -std=c++14\" ./configure\`" >&2;}
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+                                            as_fn_error $? "The compiler supports C++11 but the user or a dependency has explicitly enabled a lower mode." "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+                         as_fn_error $? "A compiler supporting C++11 is required." "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
 # These are required because autoconf doesn't expand these **particular**
 # vars automatically. And qmake cannot autoexpand them.
 
@@ -5549,15 +5681,15 @@ extract() {
   for i in $string; do
     case "$(echo "$i" | cut -c1)" in
       '') ;;
-      D) QBT_CONF_DEFINES="$(echo $i | cut -c2-) $QBT_CONF_DEFINES";;
-      I) QBT_CONF_INCLUDES="$(echo $i | cut -c2-) $QBT_CONF_INCLUDES";;
-      *) QBT_CONF_EXTRA_CFLAGS="-$i $QBT_CONF_EXTRA_CFLAGS";;
+      D) QBT_CONF_DEFINES="$QBT_CONF_DEFINES $(echo $i | cut -c2-)";;
+      I) QBT_CONF_INCLUDES="$QBT_CONF_INCLUDES $(echo $i | cut -c2-)";;
+      *) QBT_CONF_EXTRA_CFLAGS="$QBT_CONF_EXTRA_CFLAGS -$i";;
     esac
   done
   IFS=$SAVEIFS
 }
 
-extract "$CFLAGS $CPPFLAGS $CXXFLAGS"
+extract "$CFLAGS $CXXFLAGS"
 QBT_ADD_DEFINES="$QBT_ADD_DEFINES $QBT_CONF_DEFINES"
 
 # Substitute the values of these vars in conf.pri.in
@@ -5568,6 +5700,8 @@ QBT_ADD_DEFINES="$QBT_ADD_DEFINES $QBT_CONF_DEFINES"
 
 
 
+
+
 ac_config_files="$ac_config_files conf.pri"
 
 cat >confcache <<\_ACEOF
@@ -6140,7 +6274,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by qbittorrent $as_me v4.1.1, which was
+This file was extended by qbittorrent $as_me v4.1.5, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -6198,7 +6332,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-qbittorrent config.status v4.1.1
+qbittorrent config.status v4.1.5
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
@@ -6306,7 +6440,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 #
 # INIT-COMMANDS
 #
-AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
 
 _ACEOF
 
@@ -6751,29 +6885,35 @@ $as_echo "$as_me: executing $ac_file commands" >&6;}
   # Older Autoconf quotes --file arguments for eval, but not when files
   # are listed without --file.  Let's play safe and only enable the eval
   # if we detect the quoting.
-  case $CONFIG_FILES in
-  *\'*) eval set x "$CONFIG_FILES" ;;
-  *)   set x $CONFIG_FILES ;;
-  esac
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
+esac
   shift
-  for mf
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
   do
     # Strip MF so we end up with the name of the file.
-    mf=`echo "$mf" | sed -e 's/:.*$//'`
-    # Check whether this is an Automake generated Makefile or not.
-    # We used to match only the files named 'Makefile.in', but
-    # some people rename them; so instead we look at the file content.
-    # Grep'ing the first line is not enough: some people post-process
-    # each Makefile.in and add a new line on top of each file to say so.
-    # Grep'ing the whole file is not good either: AIX grep has a line
+    am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
     # limit of 2048, but all sed's we know have understand at least 4000.
-    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
-      dirpart=`$as_dirname -- "$mf" ||
-$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$mf" : 'X\(//\)[^/]' \| \
-	 X"$mf" : 'X\(//\)$' \| \
-	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$mf" |
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$am_mf" : 'X\(//\)[^/]' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -6791,53 +6931,48 @@ $as_echo X"$mf" |
 	    q
 	  }
 	  s/.*/./; q'`
-    else
-      continue
-    fi
-    # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running 'make'.
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`$as_dirname -- "$file" ||
-$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$file" : 'X\(//\)[^/]' \| \
-	 X"$file" : 'X\(//\)$' \| \
-	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
 	  }
-	  /^X\(\/\/\)[^/].*/{
+	  /^X\/\(\/\/\)$/{
 	    s//\1/
 	    q
 	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
+	  /^X\/\(\/\).*/{
 	    s//\1/
 	    q
 	  }
 	  s/.*/./; q'`
-      as_dir=$dirpart/$fdir; as_fn_mkdir_p
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
   done
+  if test $am_rc -ne 0; then
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  Try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
 }
  ;;
 
@@ -7455,7 +7590,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by qbittorrent $as_me v4.1.1, which was
+This file was extended by qbittorrent $as_me v4.1.5, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -7513,7 +7648,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-qbittorrent config.status v4.1.1
+qbittorrent config.status v4.1.5
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
@@ -7621,7 +7756,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 #
 # INIT-COMMANDS
 #
-AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
 
 _ACEOF
 
@@ -8067,29 +8202,35 @@ $as_echo "$as_me: executing $ac_file commands" >&6;}
   # Older Autoconf quotes --file arguments for eval, but not when files
   # are listed without --file.  Let's play safe and only enable the eval
   # if we detect the quoting.
-  case $CONFIG_FILES in
-  *\'*) eval set x "$CONFIG_FILES" ;;
-  *)   set x $CONFIG_FILES ;;
-  esac
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
+esac
   shift
-  for mf
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
   do
     # Strip MF so we end up with the name of the file.
-    mf=`echo "$mf" | sed -e 's/:.*$//'`
-    # Check whether this is an Automake generated Makefile or not.
-    # We used to match only the files named 'Makefile.in', but
-    # some people rename them; so instead we look at the file content.
-    # Grep'ing the first line is not enough: some people post-process
-    # each Makefile.in and add a new line on top of each file to say so.
-    # Grep'ing the whole file is not good either: AIX grep has a line
+    am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
     # limit of 2048, but all sed's we know have understand at least 4000.
-    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
-      dirpart=`$as_dirname -- "$mf" ||
-$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$mf" : 'X\(//\)[^/]' \| \
-	 X"$mf" : 'X\(//\)$' \| \
-	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$mf" |
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$am_mf" : 'X\(//\)[^/]' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -8107,53 +8248,48 @@ $as_echo X"$mf" |
 	    q
 	  }
 	  s/.*/./; q'`
-    else
-      continue
-    fi
-    # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running 'make'.
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`$as_dirname -- "$file" ||
-$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$file" : 'X\(//\)[^/]' \| \
-	 X"$file" : 'X\(//\)$' \| \
-	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
 	  }
-	  /^X\(\/\/\)[^/].*/{
+	  /^X\/\(\/\/\)$/{
 	    s//\1/
 	    q
 	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
+	  /^X\/\(\/\).*/{
 	    s//\1/
 	    q
 	  }
 	  s/.*/./; q'`
-      as_dir=$dirpart/$fdir; as_fn_mkdir_p
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
   done
+  if test $am_rc -ne 0; then
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  Try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
 }
  ;;
 

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT([qbittorrent], [v4.1.1], [bugs.qbittorrent.org], [], [https://www.qbittorrent.org/])
+AC_INIT([qbittorrent], [v4.1.5], [bugs.qbittorrent.org], [], [https://www.qbittorrent.org/])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 AC_PROG_CC
@@ -8,7 +8,9 @@ AC_LANG(C++)
 AC_CANONICAL_HOST
 AM_INIT_AUTOMAKE
 
-
+# use compiler from env variables if available
+QBT_CC="$CC"
+QBT_CXX="$CXX"
 
 # Define --wth-* and --enable-* arguments
 
@@ -162,12 +164,21 @@ AS_CASE(["x$enable_qt_dbus"],
 
 
 AX_BOOST_BASE([1.35],
-              [AC_MSG_NOTICE([Boost CPPFLAGS: "$BOOST_CPPFLAGS"
-                Boost LDFLAGS: "$BOOST_LDFLAGS"])],
+              [AC_MSG_NOTICE([Boost CXXFLAGS: "$BOOST_CPPFLAGS"])
+               AC_MSG_NOTICE([Boost LDFLAGS: "$BOOST_LDFLAGS"])],
               [AC_MSG_ERROR([Could not find Boost])])
-CPPFLAGS="$BOOST_CPPFLAGS $CPPFLAGS"
+CXXFLAGS="$BOOST_CPPFLAGS $CXXFLAGS"
 LDFLAGS="$BOOST_LDFLAGS $LDFLAGS"
 
+# add workaround for problematic boost version
+# taken from ax_boost_base.m4
+m4_define([DETECT_BOOST_VERSION_PROGRAM],
+    [AC_LANG_PROGRAM([[#include <boost/version.hpp>]],
+                     [[(void) ((void)sizeof(char[1 - 2*!!((BOOST_VERSION) < ($1))]));]])])
+
+AC_COMPILE_IFELSE([DETECT_BOOST_VERSION_PROGRAM(106000)], [],
+    [QBT_ADD_DEFINES="$QBT_ADD_DEFINES BOOST_NO_CXX11_RVALUE_REFERENCES"])
+
 AX_BOOST_SYSTEM()
 AC_MSG_NOTICE([Boost.System LIB: "$BOOST_SYSTEM_LIB"])
 LIBS="$BOOST_SYSTEM_LIB $LIBS"
@@ -185,14 +196,46 @@ AS_CASE(["x$with_qtsingleapplication"],
 
 PKG_CHECK_MODULES(libtorrent,
                   [libtorrent-rasterbar >= 1.0.6],
-                  [CPPFLAGS="$libtorrent_CFLAGS $CPPFLAGS"
+                  [CXXFLAGS="$libtorrent_CFLAGS $CXXFLAGS"
                   LIBS="$libtorrent_LIBS $LIBS"])
 
 PKG_CHECK_MODULES(zlib,
                  [zlib >= 1.2.5.2],
-                 [CPPFLAGS="$zlib_CFLAGS $CPPFLAGS"
+                 [CXXFLAGS="$zlib_CFLAGS $CXXFLAGS"
                  LIBS="$zlib_LIBS $LIBS"])
 
+# Check if already in >= C++11 mode because of the flags returned by one of the above packages
+AC_MSG_CHECKING([if compiler is using C++11 or later mode])
+AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
+                  [AC_MSG_RESULT([yes])
+                   QBT_CXX11_FOUND="yes"],
+                  [AC_MSG_RESULT([no])
+                   QBT_CXX11_FOUND="no"])
+                  
+# In case of no, check if the compiler can support at least C++11
+# and if yes, enable it leaving a warning to the user
+AS_IF([test "x$QBT_CXX11_FOUND" = "xno"],
+      [AC_MSG_CHECKING([if compiler supports C++11])
+       TMP_CXXFLAGS="$CXXFLAGS"
+       CXXFLAGS="$CXXFLAGS -std=c++11"
+       AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
+                        [AC_MSG_RESULT([yes])
+                         AC_MSG_CHECKING([if C++11 is disabled by the set compiler flags])
+                         # prepend the flag so it won't override conflicting user defined flags
+                         CXXFLAGS="-std=c++11 $TMP_CXXFLAGS"
+                         AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
+                                           [AC_MSG_RESULT([no])
+                                            CXXFLAGS="$TMP_CXXFLAGS -std=c++11"
+                                            AC_MSG_WARN([C++11 mode is now force enabled.
+Make sure you use the same C++ mode for qBittorrent and its dependencies.
+To explicitly set qBittorrent to a later mode use CXXFLAGS.
+Example: `CXXFLAGS="\$CXXFLAGS -std=c++14" ./configure`])],
+                                           [AC_MSG_RESULT([yes])
+                                            AC_MSG_ERROR([The compiler supports C++11 but the user or a dependency has explicitly enabled a lower mode.])])],
+                        [AC_MSG_RESULT([no])
+                         AC_MSG_ERROR([A compiler supporting C++11 is required.])])
+      ])
+
 # These are required because autoconf doesn't expand these **particular**
 # vars automatically. And qmake cannot autoexpand them.
 AX_DEFINE_DIR([EXPAND_PREFIX], [prefix])
@@ -219,18 +262,20 @@ extract() {
   for i in $string; do
     case "$(echo "$i" | cut -c1)" in
       '') ;;
-      D) QBT_CONF_DEFINES="$(echo $i | cut -c2-) $QBT_CONF_DEFINES";;
-      I) QBT_CONF_INCLUDES="$(echo $i | cut -c2-) $QBT_CONF_INCLUDES";;
-      *) QBT_CONF_EXTRA_CFLAGS="-$i $QBT_CONF_EXTRA_CFLAGS";;
+      D) QBT_CONF_DEFINES="$QBT_CONF_DEFINES $(echo $i | cut -c2-)";;
+      I) QBT_CONF_INCLUDES="$QBT_CONF_INCLUDES $(echo $i | cut -c2-)";;
+      *) QBT_CONF_EXTRA_CFLAGS="$QBT_CONF_EXTRA_CFLAGS -$i";;
     esac
   done
   IFS=$SAVEIFS
 }
 
-extract "$CFLAGS $CPPFLAGS $CXXFLAGS"
+extract "$CFLAGS $CXXFLAGS"
 QBT_ADD_DEFINES="$QBT_ADD_DEFINES $QBT_CONF_DEFINES"
 
 # Substitute the values of these vars in conf.pri.in
+AC_SUBST(QBT_CC)
+AC_SUBST(QBT_CXX)
 AC_SUBST(QBT_CONF_INCLUDES)
 AC_SUBST(QBT_CONF_EXTRA_CFLAGS)
 AC_SUBST(QBT_ADD_CONFIG)

dist/CMakeLists.txt

@@ -1,3 +1,5 @@
+find_package(Qt5Widgets ${requiredQtVersion}) # to conditionally install desktop-related files
+
 if (APPLE)
     add_subdirectory(mac)
 else (APPLE)

dist/mac/Info.plist

@@ -45,7 +45,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.1.1</string>
+	<string>4.1.5</string>
 	<key>CFBundleSignature</key>
 	<string>qBit</string>
 	<key>CFBundleExecutable</key>

dist/unix/CMakeLists.txt

@@ -1,31 +1,37 @@
-if (SYSTEMD)
-    find_package(Systemd)
-    if (SYSTEMD_FOUND)
+if (NOT Qt5Widgets_FOUND)
+    feature_option(SYSTEMD "Install systemd service file (headless only)" OFF)
+    if (SYSTEMD)
+        if (NOT Systemd_SERVICES_INSTALL_DIR)
+            find_package(Systemd)
+            if (NOT Systemd_FOUND)
+                message(FATAL_ERROR "Could not locate systemd services install dir."
+                " Either pass -DSystemd_SERVICES_INSTALL_DIR=/path/to/systemd/services option or install systemd pkg-config")
+            endif(NOT Systemd_FOUND)
+        endif(NOT Systemd_SERVICES_INSTALL_DIR)
         set(EXPAND_BINDIR ${CMAKE_INSTALL_FULL_BINDIR})
         configure_file(systemd/qbittorrent-nox@.service.in ${CMAKE_CURRENT_BINARY_DIR}/qbittorrent-nox@.service @ONLY)
         install(FILES ${CMAKE_CURRENT_BINARY_DIR}/qbittorrent-nox@.service
-            DESTINATION ${SYSTEMD_SERVICES_INSTALL_DIR}
+            DESTINATION ${Systemd_SERVICES_INSTALL_DIR}
             COMPONENT data)
-    endif(SYSTEMD_FOUND)
-endif(SYSTEMD)
+    endif(SYSTEMD)
+endif()
 
-
-if (GUI)
+if (Qt5Widgets_FOUND)
     list(APPEND MAN_FILES ${qBittorrent_SOURCE_DIR}/doc/qbittorrent.1)
-else (GUI)
+else (Qt5Widgets_FOUND)
     list(APPEND MAN_FILES ${qBittorrent_SOURCE_DIR}/doc/qbittorrent-nox.1)
-endif (GUI)
+endif (Qt5Widgets_FOUND)
 
 install(FILES ${MAN_FILES}
         DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
         COMPONENT doc)
 
-if (GUI)
+if (Qt5Widgets_FOUND)
     install(DIRECTORY menuicons/
             DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor
             FILES_MATCHING PATTERN "*.png")
 
-    install(FILES ${qBittorrent_SOURCE_DIR}/src/icons/qbittorrent.desktop
+    install(FILES qbittorrent.desktop
             DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/applications/
             COMPONENT data)
 

dist/windows/options.nsi

@@ -27,7 +27,7 @@ XPStyle on
 !define CSIDL_LOCALAPPDATA '0x1C' ;Local Application Data path
 
 ; Program specific
-!define PROG_VERSION "4.1.1"
+!define PROG_VERSION "4.1.5"
 
 !define MUI_FINISHPAGE_RUN
 !define MUI_FINISHPAGE_RUN_FUNCTION PageFinishRun

m4/qbittorrent.m4

@@ -36,3 +36,16 @@ AC_DEFUN([FIND_QTDBUS],
                         [AC_MSG_RESULT([not found])
                          HAVE_QTDBUS=[false]])
 ])
+
+# DETECT_CPP11_PROGRAM()
+# Detects if at least C++11 mode is enabled.
+# --------------------------------------
+AC_DEFUN([DETECT_CPP11_PROGRAM],
+       [AC_LANG_PROGRAM([[
+            #ifndef __cplusplus
+            #error "This is not a C++ compiler"
+            #elif __cplusplus < 201103L
+            #error "This is not a C++11 compiler"
+            #endif]],
+            [[]])
+])

qbittorrent.pro

@@ -3,7 +3,6 @@ TEMPLATE = subdirs
 SUBDIRS += src
 
 include(version.pri)
-include(qm_gen.pri)
 
 # Make target to create release tarball. Use 'make tarball'
 tarball.commands += rm -fR ../$${PROJECT_NAME}-$${PROJECT_VERSION}/ &&
@@ -18,6 +17,10 @@ tarball.commands += rm -fR $${PROJECT_NAME}-$${PROJECT_VERSION}
 
 QMAKE_EXTRA_TARGETS += tarball
 
+# Translations included here (at top level) is to avoid regenerating the .qm files
+# every time when src.pro is processed
+include(src/lang/lang.pri)
+
 # For Qt Creator beautifier
 DISTFILES += \
     uncrustify.cfg

qm_gen.pri

@@ -1,21 +0,0 @@
-TS_IN = $$fromfile(src/src.pro,TRANSLATIONS)
-TS_IN_NOEXT = $$replace(TS_IN,".ts","")
-
-isEmpty(QMAKE_LRELEASE) {
-    win32:QMAKE_LRELEASE = $$[QT_INSTALL_BINS]\\lrelease.exe
-    else:QMAKE_LRELEASE = $$[QT_INSTALL_BINS]/lrelease
-    unix {
-      equals(QT_MAJOR_VERSION, 5) {
-        !exists($$QMAKE_LRELEASE) { QMAKE_LRELEASE = lrelease-qt5 }
-      }
-    } else {
-        !exists($$QMAKE_LRELEASE) { QMAKE_LRELEASE = lrelease }
-    }
-}
-
-message("Building translations")
-for(L,TS_IN_NOEXT) {
-    message("Processing $${L}")
-    system("$$QMAKE_LRELEASE -silent src/$${L}.ts -qm src/$${L}.qm")
-    !exists("src/$${L}.qm"):error("Building translations failed, cannot continue")
-}

src/CMakeLists.txt

@@ -1,40 +1,53 @@
 set(CMAKE_CXX_STANDARD_REQUIRED True)
-set(CMAKE_CXX_STANDARD "11")
-add_definitions(-DBOOST_NO_CXX11_RVALUE_REFERENCES)
+
+# If C++14 is available, use it as libtorent ABI depends on 11/14 version
+if (cxx_std_14 IN_LIST CMAKE_CXX_COMPILE_FEATURES)
+    message(STATUS "Building in C++14 mode")
+    set(CMAKE_CXX_STANDARD "14")
+else()
+    message(STATUS "Building in C++11 mode")
+    set(CMAKE_CXX_STANDARD "11")
+endif()
 
 include(MacroQbtCompilerSettings)
 qbt_set_compiler_options()
 
-include(MacroLinkQtComponents)
 include(QbtTargetSources)
 
+find_package(Boost ${requiredBoostVersion} REQUIRED)
 find_package(LibtorrentRasterbar REQUIRED)
 
-# Qt
-list(APPEND QBT_QT_COMPONENTS Core Network Xml)
-if (GUI)
-    list (APPEND QBT_QT_COMPONENTS Gui Svg Widgets)
-    if (WIN32)
-        list (APPEND QBT_QT_COMPONENTS WinExtras)
-    endif(WIN32)
-    if (APPLE)
-        list (APPEND QBT_GUI_OPTIONAL_LINK_LIBRARIES objc)
-        list (APPEND QBT_QT_COMPONENTS MacExtras)
-    endif (APPLE)
-endif (GUI)
-if (DBUS)
-    list (APPEND QBT_QT_COMPONENTS DBus)
-endif (DBUS)
-find_package(Qt5 5.5.1 COMPONENTS ${QBT_QT_COMPONENTS} REQUIRED)
+if (Boost_VERSION VERSION_LESS 106000)
+    add_definitions(-DBOOST_NO_CXX11_RVALUE_REFERENCES)
+endif()
 
-if (GUI AND APPLE)
-    # Fix MOC inability to detect macOS. This seems to only affect cmake.
-    # Relevant issue: https://bugreports.qt.io/browse/QTBUG-58325
-    set(CMAKE_AUTOMOC_MOC_OPTIONS ${CMAKE_AUTOMOC_MOC_OPTIONS} -DQ_OS_MAC)
-endif ()
+find_package(Qt5 ${requiredQtVersion} REQUIRED COMPONENTS Core Network Xml LinguistTools)
+find_package(Qt5Widgets ${requiredQtVersion})
+if (Qt5Widgets_FOUND)
+    find_package(Qt5DBus ${requiredQtVersion})
+else()
+    add_definitions(-DDISABLE_GUI)
+endif()
+
+set_package_properties(Qt5Widgets PROPERTIES
+    DESCRIPTION "Set of components for creating classic desktop-style UIs for the Qt5 framework"
+    PURPOSE "Enables qBittorrent GUI. Unneeded for headless configuration."
+    TYPE OPTIONAL
+)
+
+set_package_properties(Qt5DBus PROPERTIES
+    DESCRIPTION "Qt5 module for inter-process communication over the D-Bus protocol"
+    PURPOSE "Enables communication with other system components (e.g. notification service) via D-Bus. "
+    TYPE RECOMMENDED
+)
 
 set(CMAKE_AUTOMOC True)
 list(APPEND CMAKE_AUTORCC_OPTIONS -compress 9 -threshold 5)
+if (APPLE)
+    # Workaround CMake bug (autogen does not pass required parameters to moc)
+    # Relevant issue: https://gitlab.kitware.com/cmake/cmake/issues/18041
+    list(APPEND CMAKE_AUTOMOC_MOC_OPTIONS -DQ_OS_MAC -DQ_OS_DARWIN)
+endif ()
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
@@ -43,56 +56,34 @@ add_definitions(-DQT_NO_CAST_TO_ASCII)
 # Efficient construction for QString & QByteArray (Qt >= 4.8)
 add_definitions(-DQT_USE_QSTRINGBUILDER)
 
-if (NOT GUI)
-    add_definitions(-DDISABLE_GUI -DDISABLE_COUNTRIES_RESOLUTION)
-endif (NOT GUI)
-
-if (NOT WEBUI)
-    add_definitions(-DDISABLE_WEBUI)
-endif (NOT WEBUI)
-
-if (STACKTRACE)
-    add_definitions(-DSTACKTRACE)
-endif(STACKTRACE)
-# nogui {
-#     TARGET = qbittorrent-nox
-# } else {
-#     CONFIG(static) {
-#         DEFINES += QBT_STATIC_QT
-#         QTPLUGIN += qico
-#     }
-#     TARGET = qbittorrent
-# }
-
-if (UNIX AND NOT APPLE)
-    add_compile_options(-Wformat -Wformat-security)
-endif ()
-
-if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+if (CMAKE_BUILD_TYPE MATCHES "Debug")
     message(STATUS "Project is built in DEBUG mode.")
-else (CMAKE_BUILD_TYPE STREQUAL "Debug")
+else()
     message(STATUS "Project is built in RELEASE mode.")
     message(STATUS "Disabling debug output.")
     add_definitions(-DQT_NO_DEBUG_OUTPUT)
-endif (CMAKE_BUILD_TYPE STREQUAL "Debug")
-
-set(QBT_USE_GUI ${GUI})
-set(QBT_USE_WEBUI ${WEBUI})
+endif()
 
 configure_file(config.h.cmakein ${CMAKE_CURRENT_BINARY_DIR}/config.h)
 
-if (SYSTEM_QTSINGLEAPPLICATION)
-    find_package(QtSingleApplication REQUIRED)
-else (SYSTEM_QTSINGLEAPPLICATION)
+find_package(QtSingleApplication)
+set_package_properties(QtSingleApplication PROPERTIES
+    URL "https://code.qt.io/cgit/qt-solutions/qt-solutions.git/"
+    DESCRIPTION "Qt library to start applications only once per user"
+    TYPE RECOMMENDED
+    PURPOSE "Use the system qtsingleapplication library or shipped one otherwise"
+)
+
+if (NOT QtSingleApplication_FOUND)
     add_subdirectory(app/qtsingleapplication)
-endif (SYSTEM_QTSINGLEAPPLICATION)
+endif ()
 
 add_subdirectory(app)
 add_subdirectory(base)
 
-if (GUI)
+if (Qt5Widgets_FOUND)
     add_subdirectory(gui)
-endif (GUI)
+endif ()
 
 if (WEBUI)
     add_subdirectory(webui)

src/app/CMakeLists.txt

@@ -1,43 +1,41 @@
-project(qbt_executable)
-include_directories(${CMAKE_CURRENT_BINARY_DIR})
-
-set(QBT_APP_HEADERS
+add_executable(qBittorrent
 application.h
 cmdoptions.h
 filelogger.h
-)
-
-set(QBT_APP_SOURCES
+upgrade.h
 application.cpp
 cmdoptions.cpp
 filelogger.cpp
 main.cpp
 )
 
+target_include_directories(qBittorrent PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
+target_link_libraries(qBittorrent
+    PRIVATE
+        qbt_base
+)
+
+set_target_properties(qBittorrent
+    PROPERTIES
+        AUTOUIC True
+        AUTORCC True
+        MACOSX_BUNDLE True
+)
+
 # translations
+include(QbtTranslations)
+
 file(GLOB QBT_TS_FILES ../lang/*.ts)
-get_filename_component(QBT_QM_FILES_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/../lang" ABSOLUTE)
-set_source_files_properties(${QBT_TS_FILES} PROPERTIES OUTPUT_LOCATION "${QBT_QM_FILES_BINARY_DIR}")
+qbt_add_translations(qBittorrent QRC_FILE "../lang/lang.qrc" TS_FILES ${QBT_TS_FILES})
 
-find_package(Qt5 COMPONENTS LinguistTools REQUIRED)
-qt5_add_translation(QBT_QM_FILES ${QBT_TS_FILES})
-
-get_filename_component(_lang_qrc_src "${CMAKE_CURRENT_SOURCE_DIR}/../lang.qrc" ABSOLUTE)
-get_filename_component(_lang_qrc_dst "${CMAKE_CURRENT_BINARY_DIR}/../lang.qrc" ABSOLUTE)
-get_filename_component(_lang_qrc_dst_dir "${CMAKE_CURRENT_BINARY_DIR}/../" ABSOLUTE)
-
-message(STATUS "copying ${_lang_qrc_src} -> ${_lang_qrc_dst}")
-file(COPY ${_lang_qrc_src} DESTINATION ${_lang_qrc_dst_dir})
-
-set_source_files_properties("${_lang_qrc_dst}" PROPERTIES GENERATED True)
-foreach(qm_file ${QBT_QM_FILES})
-    set_source_files_properties("${_lang_qrc_dst}" PROPERTIES OBJECT_DEPENDS ${qm_file})
-endforeach()
+if (WEBUI)
+    file(GLOB QBT_WEBUI_TS_FILES ../webui/www/translations/*.ts)
+    qbt_add_translations(qBittorrent QRC_FILE "../webui/www/translations/webui_translations.qrc" TS_FILES ${QBT_WEBUI_TS_FILES})
+endif()
 
 set(QBT_APP_RESOURCES
-../icons.qrc
-../searchengine.qrc
-"${_lang_qrc_dst}"
+../icons/icons.qrc
+../searchengine/searchengine.qrc
 )
 
 # With AUTORCC rcc is ran by cmake before language files are generated,
@@ -46,51 +44,41 @@ qt5_add_resources(QBT_APP_RESOURCE_SOURCE ${QBT_APP_RESOURCES})
 
 if (WIN32)
     if (MINGW)
-        list (APPEND QBT_APP_SOURCES ../qbittorrent_mingw.rc)
+        target_sources(qBittorrent PRIVATE ../qbittorrent_mingw.rc)
     else (MINGW)
-        list (APPEND QBT_APP_SOURCES ../qbittorrent.rc)
+        target_sources(qBittorrent PRIVATE ../qbittorrent.rc)
     endif (MINGW)
-    list(APPEND QBT_APP_SOURCES ../qbittorrent.exe.manifest)
+    target_sources(qBittorrent PRIVATE ../qbittorrent.exe.manifest)
 endif (WIN32)
 
 if (STACKTRACE)
     if (UNIX)
-        list(APPEND QBT_APP_HEADERS stacktrace.h)
+        target_sources(qBittorrent PRIVATE stacktrace.h)
     else (UNIX)
-        list(APPEND QBT_APP_HEADERS stacktrace_win.h)
-        if (GUI)
-            list(APPEND QBT_APP_HEADERS stacktrace_win_dlg.h)
-        endif (GUI)
+        target_sources(qBittorrent PRIVATE stacktrace_win.h)
+        if (Qt5Widgets_FOUND)
+            target_sources(qBittorrent PRIVATE stacktracedialog.h)
+        endif (Qt5Widgets_FOUND)
     endif (UNIX)
 endif (STACKTRACE)
 
-# usesystemqtsingleapplication {
-#     nogui {
-#         CONFIG += qtsinglecoreapplication
-#     } else {
-#         CONFIG += qtsingleapplication
-#     }
-# } else {
-#     nogui {
-#         include(qtsingleapplication/qtsinglecoreapplication.pri)
-#     } else {
-#         include(qtsingleapplication/qtsingleapplication.pri)
-#     }
-# }
 
-# upgrade code
-list(APPEND QBT_APP_HEADERS upgrade.h)
-list(APPEND QBT_TARGET_LIBRARIES qbt_base)
-
-if (GUI)
-    list(APPEND QBT_TARGET_LIBRARIES qbt_searchengine qbt_gui)
-    include_directories(../gui
-        ${CMAKE_CURRENT_BINARY_DIR}/../gui
+if (Qt5Widgets_FOUND)
+    target_link_libraries(qBittorrent PRIVATE qbt_searchengine qbt_gui)
+    set_target_properties(qBittorrent
+        PROPERTIES
+            OUTPUT_NAME qbittorrent
+            WIN32_EXECUTABLE True
     )
-endif (GUI)
+else(Qt5Widgets_FOUND)
+    set_target_properties(qBittorrent
+        PROPERTIES
+            OUTPUT_NAME qbittorrent-nox
+    )
+endif (Qt5Widgets_FOUND)
 
 if (WEBUI)
-    list(APPEND QBT_TARGET_LIBRARIES qbt_webui)
+    target_link_libraries(qBittorrent PRIVATE qbt_webui)
 endif (WEBUI)
 
 # we have to include resources into the bundle
@@ -142,30 +130,11 @@ if (APPLE)
         PROPERTIES MACOSX_PACKAGE_LOCATION translations)
 endif (APPLE)
 
-add_executable(qBittorrent ${QBT_APP_HEADERS} ${QBT_APP_SOURCES} ${QBT_QM_FILES} ${QBT_APP_RESOURCE_SOURCE})
-if (GUI)
-    set_target_properties(qBittorrent
-        PROPERTIES
-            OUTPUT_NAME qbittorrent
-            WIN32_EXECUTABLE True
-    )
-else (GUI)
-    set_target_properties(qBittorrent
-        PROPERTIES
-            OUTPUT_NAME qbittorrent-nox
-    )
-endif (GUI)
-
-set_target_properties(qBittorrent
-    PROPERTIES
-        AUTOUIC True
-        AUTORCC True
-        MACOSX_BUNDLE True
-)
+target_sources(qBittorrent PRIVATE ${QBT_QM_FILES} ${QBT_APP_RESOURCE_SOURCE})
 
 get_target_property(QBT_EXECUTABLE_NAME qBittorrent OUTPUT_NAME)
 
-target_link_libraries(qBittorrent ${QBT_TARGET_LIBRARIES} QtSingleApplication::QtSingleApplication)
+target_link_libraries(qBittorrent PRIVATE ${QBT_TARGET_LIBRARIES} QtSingleApplication::QtSingleApplication)
 
 if (APPLE)
     set(qbt_BUNDLE_NAME ${QBT_EXECUTABLE_NAME})
@@ -186,6 +155,7 @@ install(TARGETS qBittorrent
     BUNDLE  DESTINATION .
     COMPONENT runtime)
 
-if (GUI AND APPLE)
+if (Qt5Widgets_FOUND AND APPLE)
+    find_package(Qt5Svg REQUIRED)
     include(bundle)
-endif (GUI AND APPLE)
+endif (Qt5Widgets_FOUND AND APPLE)

src/app/app.pri

@@ -32,8 +32,8 @@ stacktrace {
     else {
         HEADERS += $$PWD/stacktrace_win.h
         !nogui {
-            HEADERS += $$PWD/stacktrace_win_dlg.h
-            FORMS += $$PWD/stacktrace_win_dlg.ui
+            HEADERS += $$PWD/stacktracedialog.h
+            FORMS += $$PWD/stacktracedialog.ui
         }
     }
 }

src/app/application.cpp

@@ -31,20 +31,38 @@
 
 #include <algorithm>
 
-#ifdef Q_OS_WIN
-#include <memory>
-#endif
-
 #include <QAtomicInt>
 #include <QDebug>
-#include <QFileInfo>
 #include <QLibraryInfo>
 #include <QLocale>
 #include <QProcess>
 #include <QSysInfo>
 
+#ifdef Q_OS_WIN
+#include <memory>
+#include <Shellapi.h>
+#endif
+
+#ifndef DISABLE_GUI
+#include <QMessageBox>
+#ifdef Q_OS_WIN
+#include <QSessionManager>
+#include <QSharedMemory>
+#endif // Q_OS_WIN
+#ifdef Q_OS_MAC
+#include <QFileOpenEvent>
+#endif // Q_OS_MAC
+#include "addnewtorrentdialog.h"
+#include "gui/guiiconprovider.h"
+#include "mainwindow.h"
+#include "shutdownconfirmdialog.h"
+#else // DISABLE_GUI
+#include <cstdio>
+#endif // DISABLE_GUI
+
 #include "base/bittorrent/session.h"
 #include "base/bittorrent/torrenthandle.h"
+#include "base/exceptions.h"
 #include "base/iconprovider.h"
 #include "base/logger.h"
 #include "base/net/downloadmanager.h"
@@ -56,34 +74,13 @@
 #include "base/rss/rss_autodownloader.h"
 #include "base/rss/rss_session.h"
 #include "base/scanfoldersmodel.h"
+#include "base/search/searchpluginmanager.h"
 #include "base/settingsstorage.h"
 #include "base/utils/fs.h"
 #include "base/utils/misc.h"
 #include "base/utils/string.h"
 #include "filelogger.h"
 
-#ifndef DISABLE_GUI
-#ifdef Q_OS_WIN
-#include <QSessionManager>
-#include <QSharedMemory>
-#endif // Q_OS_WIN
-#ifdef Q_OS_MAC
-#include <QFileOpenEvent>
-#include <QFont>
-#include <QUrl>
-#endif // Q_OS_MAC
-#include "addnewtorrentdialog.h"
-#include "gui/guiiconprovider.h"
-#include "mainwindow.h"
-#include "shutdownconfirmdlg.h"
-#else // DISABLE_GUI
-#include <cstdio>
-#endif // DISABLE_GUI
-
-#ifdef Q_OS_WIN
-#include <Shellapi.h>
-#endif
-
 #ifndef DISABLE_WEBUI
 #include "webui/webui.h"
 #endif
@@ -102,13 +99,13 @@ namespace
     const QString KEY_FILELOGGER_AGE = FILELOGGER_SETTINGS_KEY("Age");
     const QString KEY_FILELOGGER_AGETYPE = FILELOGGER_SETTINGS_KEY("AgeType");
 
-    //just a shortcut
+    // just a shortcut
     inline SettingsStorage *settings() { return  SettingsStorage::instance(); }
 
-    const QString LOG_FOLDER("logs");
-    const char PARAMS_SEPARATOR[] = "|";
+    const QString LOG_FOLDER = QStringLiteral("logs");
+    const QChar PARAMS_SEPARATOR = '|';
 
-    const QString DEFAULT_PORTABLE_MODE_PROFILE_DIR = QLatin1String("profile");
+    const QString DEFAULT_PORTABLE_MODE_PROFILE_DIR = QStringLiteral("profile");
 
     const int MIN_FILELOG_SIZE = 1024; // 1KiB
     const int MAX_FILELOG_SIZE = 1000 * 1024 * 1024; // 1000MiB
@@ -261,17 +258,17 @@ void Application::setFileLoggerAge(const int value)
 int Application::fileLoggerAgeType() const
 {
     int val = settings()->loadValue(KEY_FILELOGGER_AGETYPE, 1).toInt();
-    return (val < 0 || val > 2) ? 1 : val;
+    return ((val < 0) || (val > 2)) ? 1 : val;
 }
 
 void Application::setFileLoggerAgeType(const int value)
 {
-    settings()->storeValue(KEY_FILELOGGER_AGETYPE, (value < 0 || value > 2) ? 1 : value);
+    settings()->storeValue(KEY_FILELOGGER_AGETYPE, ((value < 0) || (value > 2)) ? 1 : value);
 }
 
 void Application::processMessage(const QString &message)
 {
-    QStringList params = message.split(QLatin1String(PARAMS_SEPARATOR), QString::SkipEmptyParts);
+    QStringList params = message.split(PARAMS_SEPARATOR, QString::SkipEmptyParts);
     // If Application is not running (i.e., other
     // components are not ready) store params
     if (m_running)
@@ -338,12 +335,12 @@ void Application::runExternalProgram(const BitTorrent::TorrentHandle *torrent) c
 void Application::sendNotificationEmail(const BitTorrent::TorrentHandle *torrent)
 {
     // Prepare mail content
-    const QString content = tr("Torrent name: %1").arg(torrent->name()) + "\n"
-        + tr("Torrent size: %1").arg(Utils::Misc::friendlyUnit(torrent->wantedSize())) + "\n"
+    const QString content = tr("Torrent name: %1").arg(torrent->name()) + '\n'
+        + tr("Torrent size: %1").arg(Utils::Misc::friendlyUnit(torrent->wantedSize())) + '\n'
         + tr("Save path: %1").arg(torrent->savePath()) + "\n\n"
         + tr("The torrent was downloaded in %1.", "The torrent was downloaded in 1 hour and 20 seconds")
             .arg(Utils::Misc::userFriendlyDuration(torrent->activeTime())) + "\n\n\n"
-        + tr("Thank you for using qBittorrent.") + "\n";
+        + tr("Thank you for using qBittorrent.") + '\n';
 
     // Send the notification email
     const Preferences *pref = Preferences::instance();
@@ -394,7 +391,7 @@ void Application::allTorrentsFinished()
         // do nothing & skip confirm
     }
     else {
-        if (!ShutdownConfirmDlg::askForConfirmation(m_window, action)) return;
+        if (!ShutdownConfirmDialog::askForConfirmation(m_window, action)) return;
     }
 #endif // DISABLE_GUI
 
@@ -415,7 +412,7 @@ void Application::allTorrentsFinished()
 
 bool Application::sendParams(const QStringList &params)
 {
-    return sendMessage(params.join(QLatin1String(PARAMS_SEPARATOR)));
+    return sendMessage(params.join(PARAMS_SEPARATOR));
 }
 
 // As program parameters, we can get paths or urls.
@@ -433,7 +430,7 @@ void Application::processParams(const QStringList &params)
     BitTorrent::AddTorrentParams torrentParams;
     TriStateBool skipTorrentDialog;
 
-    foreach (QString param, params) {
+    for (QString param : params) {
         param = param.trimmed();
 
         // Process strings indicating options specified by the user.
@@ -500,30 +497,46 @@ int Application::exec(const QStringList &params)
     GuiIconProvider::initInstance();
 #endif
 
-    BitTorrent::Session::initInstance();
-    connect(BitTorrent::Session::instance(), &BitTorrent::Session::torrentFinished, this, &Application::torrentFinished);
-    connect(BitTorrent::Session::instance(), &BitTorrent::Session::allTorrentsFinished, this, &Application::allTorrentsFinished, Qt::QueuedConnection);
+    try {
+        BitTorrent::Session::initInstance();
+        connect(BitTorrent::Session::instance(), &BitTorrent::Session::torrentFinished, this, &Application::torrentFinished);
+        connect(BitTorrent::Session::instance(), &BitTorrent::Session::allTorrentsFinished, this, &Application::allTorrentsFinished, Qt::QueuedConnection);
 
 #ifndef DISABLE_COUNTRIES_RESOLUTION
-    Net::GeoIPManager::initInstance();
+        Net::GeoIPManager::initInstance();
 #endif
-    ScanFoldersModel::initInstance(this);
+        ScanFoldersModel::initInstance(this);
 
 #ifndef DISABLE_WEBUI
-    m_webui = new WebUI;
+        m_webui = new WebUI;
 #ifdef DISABLE_GUI
-    if (m_webui->isErrored())
-        return 1;
-    connect(m_webui, &WebUI::fatalError, this, []() { QCoreApplication::exit(1); });
+        if (m_webui->isErrored())
+            return 1;
+        connect(m_webui, &WebUI::fatalError, this, []() { QCoreApplication::exit(1); });
 #endif // DISABLE_GUI
 #endif // DISABLE_WEBUI
 
-    new RSS::Session; // create RSS::Session singleton
-    new RSS::AutoDownloader; // create RSS::AutoDownloader singleton
+        new RSS::Session; // create RSS::Session singleton
+        new RSS::AutoDownloader; // create RSS::AutoDownloader singleton
+    }
+    catch (const RuntimeError &err) {
+#ifdef DISABLE_GUI
+        fprintf(stderr, "%s", err.what());
+#else
+        QMessageBox msgBox;
+        msgBox.setIcon(QMessageBox::Critical);
+        msgBox.setText(tr("Application failed to start."));
+        msgBox.setInformativeText(err.message());
+        msgBox.show(); // Need to be shown or to moveToCenter does not work
+        msgBox.move(Utils::Misc::screenCenter(&msgBox));
+        msgBox.exec();
+#endif
+        return 1;
+    }
 
 #ifdef DISABLE_GUI
 #ifndef DISABLE_WEBUI
-    Preferences* const pref = Preferences::instance();
+    Preferences *const pref = Preferences::instance();
     // Display some information to the user
     const QString mesg = QString("\n******** %1 ********\n").arg(tr("Information"))
         + tr("To control qBittorrent, access the Web UI at %1")
@@ -619,7 +632,7 @@ bool Application::notify(QObject *receiver, QEvent *event)
 
 void Application::initializeTranslation()
 {
-    Preferences* const pref = Preferences::instance();
+    Preferences *const pref = Preferences::instance();
     // Load translation
     QString localeStr = pref->getLocale();
 
@@ -685,7 +698,7 @@ void Application::cleanup()
 
 #ifndef DISABLE_GUI
     if (m_window) {
-        // Hide the window and not leave it on screen as
+        // Hide the window and don't leave it on screen as
         // unresponsive. Also for Windows take the WinId
         // after it's hidden, because hide() may cause a
         // WinId change.
@@ -729,6 +742,7 @@ void Application::cleanup()
     delete m_fileLogger;
     Logger::freeInstance();
     IconProvider::freeInstance();
+    SearchPluginManager::freeInstance();
     Utils::Fs::removeDirRecursive(Utils::Fs::tempPath());
 
 #ifndef DISABLE_GUI

src/app/application.h

@@ -40,15 +40,13 @@ typedef QtSingleApplication BaseApplication;
 class MainWindow;
 
 #ifdef Q_OS_WIN
-QT_BEGIN_NAMESPACE
 class QSessionManager;
-QT_END_NAMESPACE
 #endif // Q_OS_WIN
 
 #else
 #include "qtsinglecoreapplication.h"
 typedef QtSingleCoreApplication BaseApplication;
-#endif
+#endif // DISABLE_GUI
 
 #include "base/utils/misc.h"
 #include "cmdoptions.h"
@@ -112,7 +110,7 @@ protected:
 #ifdef Q_OS_MAC
     bool event(QEvent *) override;
 #endif
-    bool notify(QObject* receiver, QEvent* event) override;
+    bool notify(QObject *receiver, QEvent *event) override;
 #endif
 
 private slots:

src/app/cmdoptions.cpp

@@ -2,7 +2,7 @@
  * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2016  Eugene Shalygin <eugene.shalygin@gmail.com>
  * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,8 +26,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #include "cmdoptions.h"
@@ -43,6 +41,7 @@
 #include <QMessageBox>
 #endif
 
+#include "base/global.h"
 #include "base/utils/misc.h"
 #include "base/utils/string.h"
 
@@ -100,7 +99,7 @@ namespace
     };
 
     // Boolean option.
-    class BoolOption: protected Option
+    class BoolOption : protected Option
     {
     public:
         constexpr BoolOption(const char *name, char shortcut = 0)
@@ -118,7 +117,7 @@ namespace
         {
             QString val = env.value(envVarName());
             // we accept "1" and "true" (upper or lower cased) as boolean 'true' values
-            return (val == QLatin1String("1") || val.toUpper() == QLatin1String("TRUE"));
+            return ((val == QLatin1String("1")) || (val.toUpper() == QLatin1String("TRUE")));
         }
 
         QString usage() const
@@ -137,7 +136,7 @@ namespace
     }
 
     // Option with string value. May not have a shortcut
-    struct StringOption: protected Option
+    struct StringOption : protected Option
     {
     public:
         constexpr StringOption(const char *name)
@@ -184,7 +183,7 @@ namespace
     }
 
     // Option with integer value. May not have a shortcut
-    class IntOption: protected StringOption
+    class IntOption : protected StringOption
     {
     public:
         constexpr IntOption(const char *name)
@@ -230,7 +229,7 @@ namespace
 
     // Option that is explicitly set to true or false, and whose value is undefined when unspecified.
     // May not have a shortcut.
-    class TriStateBoolOption: protected Option
+    class TriStateBoolOption : protected Option
     {
     public:
         constexpr TriStateBoolOption(const char *name, bool defaultValue)
@@ -260,10 +259,10 @@ namespace
             else if (parts.size() == 2) {
                 QString val = parts[1];
 
-                if (val.toUpper() == QLatin1String("TRUE") || val == QLatin1String("1")) {
+                if ((val.toUpper() == QLatin1String("TRUE")) || (val == QLatin1String("1"))) {
                     return TriStateBool::True;
                 }
-                else if (val.toUpper() == QLatin1String("FALSE") || val == QLatin1String("0")) {
+                else if ((val.toUpper() == QLatin1String("FALSE")) || (val == QLatin1String("0"))) {
                     return TriStateBool::False;
                 }
             }
@@ -285,10 +284,10 @@ namespace
             else if (val == QLatin1String("-1")) {
                 return TriStateBool::Undefined;
             }
-            else if (val.toUpper() == QLatin1String("TRUE") || val == QLatin1String("1")) {
+            else if ((val.toUpper() == QLatin1String("TRUE")) || (val == QLatin1String("1"))) {
                 return TriStateBool::True;
             }
-            else if (val.toUpper() == QLatin1String("FALSE") || val == QLatin1String("0")) {
+            else if ((val.toUpper() == QLatin1String("FALSE")) || (val == QLatin1String("0"))) {
                 return TriStateBool::False;
             }
             else {
@@ -360,7 +359,7 @@ QStringList QBtCommandLineParameters::paramList() const
     // the user has specified. Here we place special strings that are
     // almost certainly not going to collide with a file path or URL
     // specified by the user, and placing them at the beginning of the
-    // string listr so that they will be processed before the list of
+    // string list so that they will be processed before the list of
     // torrent paths or URLs.
 
     if (!savePath.isEmpty())
@@ -404,9 +403,9 @@ QBtCommandLineParameters parseCommandLine(const QStringList &args)
         const QString &arg = args[i];
 
         if ((arg.startsWith("--") && !arg.endsWith(".torrent"))
-            || (arg.startsWith("-") && (arg.size() == 2))) {
+            || (arg.startsWith('-') && (arg.size() == 2))) {
             // Parse known parameters
-            if ((arg == SHOW_HELP_OPTION)) {
+            if (arg == SHOW_HELP_OPTION) {
                 result.showHelp = true;
             }
 #ifndef Q_OS_WIN
@@ -488,7 +487,7 @@ CommandLineParameterError::CommandLineParameterError(const QString &messageForUs
 {
 }
 
-const QString& CommandLineParameterError::messageForUser() const
+const QString &CommandLineParameterError::messageForUser() const
 {
     return m_messageForUser;
 }
@@ -499,9 +498,9 @@ QString wrapText(const QString &text, int initialIndentation = USAGE_TEXT_COLUMN
     QStringList lines = {words.first()};
     int currentLineMaxLength = wrapAtColumn - initialIndentation;
 
-    foreach (const QString &word, words.mid(1)) {
+    for (const QString &word : asConst(words.mid(1))) {
         if (lines.last().length() + word.length() + 1 < currentLineMaxLength) {
-            lines.last().append(" " + word);
+            lines.last().append(' ' + word);
         }
         else {
             lines.append(QString(initialIndentation, ' ') + word);
@@ -509,7 +508,7 @@ QString wrapText(const QString &text, int initialIndentation = USAGE_TEXT_COLUMN
         }
     }
 
-    return lines.join("\n");
+    return lines.join('\n');
 }
 
 QString makeUsage(const QString &prgName)

src/app/cmdoptions.h

@@ -2,7 +2,7 @@
  * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2016  Eugene Shalygin <eugene.shalygin@gmail.com>
  * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,8 +26,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef APP_OPTIONS_H
@@ -62,11 +60,11 @@ struct QBtCommandLineParameters
     QStringList paramList() const;
 };
 
-class CommandLineParameterError: public std::runtime_error
+class CommandLineParameterError : public std::runtime_error
 {
 public:
     CommandLineParameterError(const QString &messageForUser);
-    const QString& messageForUser() const;
+    const QString &messageForUser() const;
 
 private:
     const QString m_messageForUser;

src/app/filelogger.cpp

@@ -26,11 +26,14 @@
  * exception statement from your version.
  */
 
+#include "filelogger.h"
+
 #include <QDateTime>
 #include <QDir>
 #include <QFile>
 #include <QTextStream>
-#include "filelogger.h"
+
+#include "base/global.h"
 #include "base/logger.h"
 #include "base/utils/fs.h"
 
@@ -47,8 +50,8 @@ FileLogger::FileLogger(const QString &path, const bool backup, const int maxSize
     if (deleteOld)
         this->deleteOld(age, ageType);
 
-    const Logger* const logger = Logger::instance();
-    foreach (const Log::Msg& msg, logger->getMessages())
+    const Logger *const logger = Logger::instance();
+    for (const Log::Msg &msg : asConst(logger->getMessages()))
         addLogMessage(msg);
 
     connect(logger, &Logger::newLogMessage, this, &FileLogger::addLogMessage);
@@ -61,7 +64,7 @@ FileLogger::~FileLogger()
     delete m_logFile;
 }
 
-void FileLogger::changePath(const QString& newPath)
+void FileLogger::changePath(const QString &newPath)
 {
     QString tmpPath = Utils::Fs::fromNativePath(newPath);
     QDir dir(tmpPath);
@@ -85,7 +88,7 @@ void FileLogger::deleteOld(const int age, const FileLogAgeType ageType)
     QDateTime date = QDateTime::currentDateTime();
     QDir dir(Utils::Fs::branchPath(m_path));
 
-    foreach (const QFileInfo file, dir.entryInfoList(QStringList("qbittorrent.log.bak*"), QDir::Files | QDir::Writable, QDir::Time | QDir::Reversed)) {
+    for (const QFileInfo &file : asConst(dir.entryInfoList(QStringList("qbittorrent.log.bak*"), QDir::Files | QDir::Writable, QDir::Time | QDir::Reversed))) {
         QDateTime modificationDate = file.lastModified();
         switch (ageType) {
         case DAYS:

src/app/filelogger.h

@@ -76,4 +76,3 @@ private:
 };
 
 #endif // FILELOGGER_H
-

src/app/main.cpp

@@ -1,7 +1,7 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -25,8 +25,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #include <cstdlib>
@@ -63,14 +61,14 @@ Q_IMPORT_PLUGIN(QICOPlugin)
 #include "stacktrace.h"
 #else
 #include "stacktrace_win.h"
-#include "stacktrace_win_dlg.h"
+#include "stacktracedialog.h"
 #endif // Q_OS_UNIX
 #endif //STACKTRACE
 
-#include "application.h"
+#include "base/preferences.h"
 #include "base/profile.h"
 #include "base/utils/misc.h"
-#include "base/preferences.h"
+#include "application.h"
 #include "cmdoptions.h"
 #include "upgrade.h"
 
@@ -95,7 +93,7 @@ const char *sysSigName[] = {
 };
 
 #if !defined Q_OS_WIN && !defined Q_OS_HAIKU
-void reportToUser(const char* str);
+void reportToUser(const char *str);
 #endif
 
 void displayVersion();
@@ -104,10 +102,6 @@ void displayBadArgMessage(const QString &message);
 
 #if !defined(DISABLE_GUI)
 void showSplashScreen();
-
-#if defined(Q_OS_UNIX)
-void setupDpi();
-#endif  // Q_OS_UNIX
 #endif  // DISABLE_GUI
 
 // Main
@@ -122,10 +116,6 @@ int main(int argc, char *argv[])
     macMigratePlists();
 #endif
 
-#if !defined(DISABLE_GUI) && defined(Q_OS_UNIX)
-    setupDpi();
-#endif
-
     try {
         // Create Application
         QString appId = QLatin1String("qBittorrent-") + Utils::Misc::getUserIDString();
@@ -212,7 +202,7 @@ int main(int argc, char *argv[])
         // this is the default in Qt6
         app->setAttribute(Qt::AA_DisableWindowContextHelpButton);
 #endif
-#endif
+#endif // Q_OS_WIN
 
 #if defined(Q_OS_MAC)
         // Since Apple made difficult for users to set PATH, we set here for convenience.
@@ -236,7 +226,7 @@ int main(int argc, char *argv[])
 #ifdef DISABLE_GUI
         if (params.shouldDaemonize) {
             app.reset(); // Destroy current application
-            if ((daemon(1, 0) == 0)) {
+            if (daemon(1, 0) == 0) {
                 app.reset(new Application(appId, argc, argv));
                 if (app->isRunning()) {
                     // Another instance had time to start.
@@ -269,7 +259,7 @@ int main(int argc, char *argv[])
 }
 
 #if !defined Q_OS_WIN && !defined Q_OS_HAIKU
-void reportToUser(const char* str)
+void reportToUser(const char *str)
 {
     const size_t strLen = strlen(str);
     if (write(STDERR_FILENO, str, strLen) < static_cast<ssize_t>(strLen)) {
@@ -308,7 +298,7 @@ void sigAbnormalHandler(int signum)
 #endif
 
 #if defined Q_OS_WIN
-    StraceDlg dlg;  // unsafe
+    StacktraceDialog dlg;  // unsafe
     dlg.setStacktraceString(QLatin1String(sigName), straceWin::getBacktrace());
     dlg.exec();
 #endif
@@ -321,25 +311,17 @@ void sigAbnormalHandler(int signum)
 #if !defined(DISABLE_GUI)
 void showSplashScreen()
 {
-    QPixmap splash_img(":/icons/skin/splash.png");
-    QPainter painter(&splash_img);
+    QPixmap splashImg(":/icons/skin/splash.png");
+    QPainter painter(&splashImg);
     QString version = QBT_VERSION;
     painter.setPen(QPen(Qt::white));
     painter.setFont(QFont("Arial", 22, QFont::Black));
     painter.drawText(224 - painter.fontMetrics().width(version), 270, version);
-    QSplashScreen *splash = new QSplashScreen(splash_img);
+    QSplashScreen *splash = new QSplashScreen(splashImg);
     splash->show();
     QTimer::singleShot(1500, splash, &QObject::deleteLater);
     qApp->processEvents();
 }
-
-#if defined(Q_OS_UNIX)
-void setupDpi()
-{
-    if (qEnvironmentVariableIsEmpty("QT_AUTO_SCREEN_SCALE_FACTOR"))
-        qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "1");
-}
-#endif  // Q_OS_UNIX
 #endif  // DISABLE_GUI
 
 void displayVersion()
@@ -347,7 +329,7 @@ void displayVersion()
     printf("%s %s\n", qUtf8Printable(qApp->applicationName()), QBT_VERSION);
 }
 
-void displayBadArgMessage(const QString& message)
+void displayBadArgMessage(const QString &message)
 {
     QString help = QObject::tr("Run application with -h option to read about command line parameters.");
 #ifdef Q_OS_WIN
@@ -366,7 +348,7 @@ void displayBadArgMessage(const QString& message)
 
 bool userAgreesWithLegalNotice()
 {
-    Preferences* const pref = Preferences::instance();
+    Preferences *const pref = Preferences::instance();
     if (pref->getAcceptedLegal()) // Already accepted once
         return true;
 
@@ -378,7 +360,7 @@ bool userAgreesWithLegalNotice()
     printf("%s", qUtf8Printable(eula));
 
     char ret = getchar(); // Read pressed key
-    if (ret == 'y' || ret == 'Y') {
+    if ((ret == 'y') || (ret == 'Y')) {
         // Save the answer
         pref->setAcceptedLegal(true);
         return true;
@@ -388,16 +370,16 @@ bool userAgreesWithLegalNotice()
     msgBox.setText(QObject::tr("qBittorrent is a file sharing program. When you run a torrent, its data will be made available to others by means of upload. Any content you share is your sole responsibility.\n\nNo further notices will be issued."));
     msgBox.setWindowTitle(QObject::tr("Legal notice"));
     msgBox.addButton(QObject::tr("Cancel"), QMessageBox::RejectRole);
-    QAbstractButton *agree_button = msgBox.addButton(QObject::tr("I Agree"), QMessageBox::AcceptRole);
+    QAbstractButton *agreeButton = msgBox.addButton(QObject::tr("I Agree"), QMessageBox::AcceptRole);
     msgBox.show(); // Need to be shown or to moveToCenter does not work
     msgBox.move(Utils::Misc::screenCenter(&msgBox));
     msgBox.exec();
-    if (msgBox.clickedButton() == agree_button) {
+    if (msgBox.clickedButton() == agreeButton) {
         // Save the answer
         pref->setAcceptedLegal(true);
         return true;
     }
-#endif
+#endif // DISABLE_GUI
 
     return false;
 }

src/app/qtsingleapplication/CMakeLists.txt

@@ -8,24 +8,24 @@ set(QBT_QTSINGLEAPPLICATION_SOURCES
 qtlocalpeer.cpp
 )
 
-if (GUI)
+if (Qt5Widgets_FOUND)
     list(APPEND QBT_QTSINGLEAPPLICATION_HEADERS qtsingleapplication.h)
     list(APPEND QBT_QTSINGLEAPPLICATION_SOURCES qtsingleapplication.cpp)
-else (GUI)
+else (Qt5Widgets_FOUND)
     list(APPEND QBT_QTSINGLEAPPLICATION_HEADERS qtsinglecoreapplication.h)
     list(APPEND QBT_QTSINGLEAPPLICATION_SOURCES qtsinglecoreapplication.cpp)
-endif (GUI)
+endif (Qt5Widgets_FOUND)
 
 add_library(qtsingleapplication STATIC ${QBT_QTSINGLEAPPLICATION_HEADERS} ${QBT_QTSINGLEAPPLICATION_SOURCES})
 target_include_directories(qtsingleapplication INTERFACE "${qtsingleapplication_SOURCE_DIR}")
-target_link_qt_components(qtsingleapplication Network)
+target_link_libraries(qtsingleapplication PRIVATE Qt5::Network)
 
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
     target_compile_options(qtsingleapplication PRIVATE "-w") # disable warning for 3rdparty code
 endif()
 
-if (GUI)
-    target_link_qt_components(qtsingleapplication Widgets)
-endif (GUI)
+if (Qt5Widgets_FOUND)
+    target_link_libraries(qtsingleapplication PRIVATE Qt5::Widgets)
+endif (Qt5Widgets_FOUND)
 
 add_library(QtSingleApplication::QtSingleApplication ALIAS qtsingleapplication)

src/app/stacktracedialog.h

@@ -27,20 +27,21 @@
  *
  */
 
-#ifndef STACKTRACE_WIN_DLG_H
-#define STACKTRACE_WIN_DLG_H
+#ifndef STACKTRACEDIALOG_H
+#define STACKTRACEDIALOG_H
 
 #include <QString>
 #include <QDialog>
-#include "base/utils/misc.h"
-#include "ui_stacktrace_win_dlg.h"
 
-class StraceDlg : public QDialog, private Ui::errorDialog
+#include "base/utils/misc.h"
+#include "ui_stacktracedialog.h"
+
+class StacktraceDialog : public QDialog, private Ui::StacktraceDialog
 {
     Q_OBJECT
 
 public:
-    StraceDlg(QWidget *parent = nullptr)
+    StacktraceDialog(QWidget *parent = nullptr)
         : QDialog(parent)
     {
         setupUi(this);
@@ -83,4 +84,4 @@ public:
     }
 };
 
-#endif
+#endif // STACKTRACEDIALOG_H

src/app/stacktracedialog.ui

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>errorDialog</class>
- <widget class="QDialog" name="errorDialog">
+ <class>StacktraceDialog</class>
+ <widget class="QDialog" name="StacktraceDialog">
   <property name="geometry">
    <rect>
     <x>0</x>

src/app/upgrade.h

@@ -29,34 +29,34 @@
 #ifndef UPGRADE_H
 #define UPGRADE_H
 
-#include <libtorrent/version.hpp>
-#if LIBTORRENT_VERSION_NUM >= 10100
-#include <libtorrent/bdecode.hpp>
-#endif
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/entry.hpp>
-#if LIBTORRENT_VERSION_NUM < 10100
+#include <libtorrent/version.hpp>
+
+#if LIBTORRENT_VERSION_NUM >= 10100
+#include <libtorrent/bdecode.hpp>
+#else
 #include <libtorrent/lazy_entry.hpp>
 #endif
 
-
 #include <QDir>
 #include <QFile>
+#include <QRegularExpression>
+#include <QString>
+
 #ifndef DISABLE_GUI
 #include <QMessageBox>
 #endif
-#include <QRegExp>
-#include <QString>
 #ifdef Q_OS_MAC
 #include <QSettings>
 #endif
 
 #include "base/logger.h"
+#include "base/preferences.h"
 #include "base/profile.h"
 #include "base/utils/fs.h"
 #include "base/utils/misc.h"
 #include "base/utils/string.h"
-#include "base/preferences.h"
 
 bool userAcceptsUpgrade()
 {
@@ -83,7 +83,7 @@ bool userAcceptsUpgrade()
     msgBox.move(Utils::Misc::screenCenter(&msgBox));
     if (msgBox.exec() == QMessageBox::Ok)
         return true;
-#endif
+#endif // DISABLE_GUI
 
     return false;
 }
@@ -114,8 +114,9 @@ bool upgradeResumeFile(const QString &filepath, const QVariantHash &oldTorrent =
     bool v3_3 = false;
     int queuePosition = 0;
     QString outFilePath = filepath;
-    QRegExp rx(QLatin1String("([A-Fa-f0-9]{40})\\.fastresume\\.(.+)$"));
-    if (rx.indexIn(filepath) != -1) {
+    static const QRegularExpression rx(QLatin1String("([A-Fa-f0-9]{40})\\.fastresume\\.(.+)$"));
+    const QRegularExpressionMatch rxMatch = rx.match(filepath);
+    if (rxMatch.hasMatch()) {
         // Old v3.3.x format had a number at the end indicating the queue position.
         // The naming scheme was '<infohash>.fastresume.<queueposition>'.
         // However, QSaveFile, which uses QTemporaryFile internally, might leave
@@ -127,14 +128,14 @@ bool upgradeResumeFile(const QString &filepath, const QVariantHash &oldTorrent =
         // and is deleted, because it may be a corrupted/incomplete fastresume.
         // NOTE: When the upgrade code is removed, we must continue to perform
         // cleanup of non-commited QSaveFile/QTemporaryFile fastresumes
-        queuePosition = rx.cap(2).toInt();
-        if ((rx.cap(2).size() == 6) && (queuePosition <= 99999)) {
+        queuePosition = rxMatch.captured(2).toInt();
+        if ((rxMatch.captured(2).size() == 6) && (queuePosition <= 99999)) {
             Utils::Fs::forceRemove(filepath);
             return true;
         }
 
         v3_3 = true;
-        outFilePath.replace(QRegExp("\\.fastresume\\..+$"), ".fastresume");
+        outFilePath.replace(QRegularExpression("\\.fastresume\\..+$"), ".fastresume");
     }
     else {
         queuePosition = fastOld.dict_find_int_value("qBt-queuePosition", 0);
@@ -178,9 +179,9 @@ bool upgrade(bool ask = true)
 
     // ****************************************************************************************
     // Silently converts old v3.3.x .fastresume files
-    QStringList backupFiles_3_3 = backupFolderDir.entryList(
+    const QStringList backupFiles_3_3 = backupFolderDir.entryList(
                 QStringList(QLatin1String("*.fastresume.*")), QDir::Files, QDir::Unsorted);
-    foreach (const QString &backupFile, backupFiles_3_3)
+    for (const QString &backupFile : backupFiles_3_3)
         upgradeResumeFile(backupFolderDir.absoluteFilePath(backupFile));
     // ****************************************************************************************
 
@@ -196,15 +197,17 @@ bool upgrade(bool ask = true)
 
     if (ask && !userAcceptsUpgrade()) return false;
 
-    QStringList backupFiles = backupFolderDir.entryList(
+    const QStringList backupFiles = backupFolderDir.entryList(
                 QStringList(QLatin1String("*.fastresume")), QDir::Files, QDir::Unsorted);
-    QRegExp rx(QLatin1String("^([A-Fa-f0-9]{40})\\.fastresume$"));
-    foreach (QString backupFile, backupFiles) {
-        if (rx.indexIn(backupFile) != -1) {
-            if (upgradeResumeFile(backupFolderDir.absoluteFilePath(backupFile), oldResumeData[rx.cap(1)].toHash()))
-                oldResumeData.remove(rx.cap(1));
+    const QRegularExpression rx(QLatin1String("^([A-Fa-f0-9]{40})\\.fastresume$"));
+    for (const QString &backupFile : backupFiles) {
+        const QRegularExpressionMatch rxMatch = rx.match(backupFile);
+        if (rxMatch.hasMatch()) {
+            const QString hashStr = rxMatch.captured(1);
+            if (upgradeResumeFile(backupFolderDir.absoluteFilePath(backupFile), oldResumeData[hashStr].toHash()))
+                oldResumeData.remove(hashStr);
             else
-                Logger::instance()->addMessage(QObject::tr("Couldn't migrate torrent with hash: %1").arg(rx.cap(1)), Log::WARNING);
+                Logger::instance()->addMessage(QObject::tr("Couldn't migrate torrent with hash: %1").arg(hashStr), Log::WARNING);
         }
         else {
             Logger::instance()->addMessage(QObject::tr("Couldn't migrate torrent. Invalid fastresume file name: %1").arg(backupFile), Log::WARNING);
@@ -262,7 +265,7 @@ void migratePlistToIni(const QString &application)
     plistFile->setFallbacksEnabled(false);
     const QStringList plist = plistFile->allKeys();
     if (!plist.isEmpty()) {
-        foreach (const QString &key, plist)
+        for (const QString &key : plist)
             iniFile.setValue(key, plistFile->value(key));
         plistFile->clear();
     }
@@ -296,6 +299,6 @@ void migrateRSS()
         qBTRSSLegacy->remove("old_items");
     }
 }
-#endif
+#endif // DISABLE_GUI
 
 #endif // UPGRADE_H

src/base/CMakeLists.txt

@@ -1,8 +1,10 @@
 find_package(ZLIB 1.2.5.2 REQUIRED)
 
-set(QBT_BASE_HEADERS
+add_library(qbt_base STATIC
+# headers
 bittorrent/addtorrentparams.h
 bittorrent/cachestatus.h
+bittorrent/filepriority.h
 bittorrent/infohash.h
 bittorrent/magneturi.h
 bittorrent/peerinfo.h
@@ -48,6 +50,7 @@ search/searchdownloadhandler.h
 search/searchhandler.h
 search/searchpluginmanager.h
 utils/bytearray.h
+utils/foreignapps.h
 utils/fs.h
 utils/gzip.h
 utils/misc.h
@@ -72,9 +75,9 @@ torrentfilter.h
 tristatebool.h
 types.h
 unicodestrings.h
-)
 
-set(QBT_BASE_SOURCES
+# sources
+bittorrent/filepriority.cpp
 bittorrent/infohash.cpp
 bittorrent/magneturi.cpp
 bittorrent/peerinfo.cpp
@@ -117,6 +120,7 @@ search/searchdownloadhandler.cpp
 search/searchhandler.cpp
 search/searchpluginmanager.cpp
 utils/bytearray.cpp
+utils/foreignapps.cpp
 utils/fs.cpp
 utils/gzip.cpp
 utils/misc.cpp
@@ -137,16 +141,20 @@ torrentfilter.cpp
 tristatebool.cpp
 )
 
-add_library(qbt_base STATIC ${QBT_BASE_HEADERS} ${QBT_BASE_SOURCES})
-target_link_libraries(qbt_base PRIVATE ZLIB::ZLIB PUBLIC LibtorrentRasterbar::LibTorrent)
-target_link_qt_components(qbt_base PUBLIC Core Network Xml)
+target_link_libraries(qbt_base
+    PRIVATE
+        ZLIB::ZLIB
+    PUBLIC
+        LibtorrentRasterbar::torrent-rasterbar
+        Qt5::Core Qt5::Network Qt5::Xml
+)
 
-if (GUI)
+if (Qt5Widgets_FOUND)
     target_link_libraries(qbt_base PUBLIC Qt5::Gui Qt5::Widgets)
-endif (GUI)
+endif (Qt5Widgets_FOUND)
 
-if (DBUS)
-    target_link_qt_components(qbt_base PRIVATE DBus)
+if (Qt5DBus_FOUND)
+    target_link_libraries(qbt_base PRIVATE Qt5::DBus)
 endif ()
 
 if (APPLE)

src/base/asyncfilestorage.cpp

@@ -38,12 +38,12 @@ AsyncFileStorage::AsyncFileStorage(const QString &storageFolderPath, QObject *pa
     , m_lockFile(m_storageDir.absoluteFilePath(QStringLiteral("storage.lock")))
 {
     if (!m_storageDir.mkpath(m_storageDir.absolutePath()))
-        throw AsyncFileStorageError(
-                QString("Could not create directory '%1'.").arg(m_storageDir.absolutePath()));
+        throw AsyncFileStorageError {tr("Could not create directory '%1'.")
+                .arg(m_storageDir.absolutePath())};
 
     // TODO: This folder locking approach does not work for UNIX systems. Implement it.
     if (!m_lockFile.open(QFile::WriteOnly))
-        throw AsyncFileStorageError(m_lockFile.errorString());
+        throw AsyncFileStorageError {m_lockFile.errorString()};
 }
 
 AsyncFileStorage::~AsyncFileStorage()
@@ -76,13 +76,3 @@ void AsyncFileStorage::store_impl(const QString &fileName, const QByteArray &dat
         }
     }
 }
-
-AsyncFileStorageError::AsyncFileStorageError(const QString &message)
-    : std::runtime_error(message.toUtf8().data())
-{
-}
-
-QString AsyncFileStorageError::message() const
-{
-    return what();
-}

src/base/asyncfilestorage.h

@@ -28,22 +28,22 @@
 
 #pragma once
 
-#include <stdexcept>
-
 #include <QDir>
 #include <QFile>
 #include <QObject>
 
-class AsyncFileStorageError : public std::runtime_error
+#include "base/exceptions.h"
+
+class AsyncFileStorageError : public RuntimeError
 {
 public:
-    explicit AsyncFileStorageError(const QString &message);
-    QString message() const;
+    using RuntimeError::RuntimeError;
 };
 
 class AsyncFileStorage : public QObject
 {
     Q_OBJECT
+    Q_DISABLE_COPY(AsyncFileStorage)
 
 public:
     explicit AsyncFileStorage(const QString &storageFolderPath, QObject *parent = nullptr);

src/base/base.pri

@@ -3,6 +3,7 @@ HEADERS += \
     $$PWD/asyncfilestorage.h \
     $$PWD/bittorrent/addtorrentparams.h  \
     $$PWD/bittorrent/cachestatus.h \
+    $$PWD/bittorrent/filepriority.h \
     $$PWD/bittorrent/infohash.h \
     $$PWD/bittorrent/magneturi.h \
     $$PWD/bittorrent/peerinfo.h \
@@ -64,6 +65,7 @@ HEADERS += \
     $$PWD/types.h \
     $$PWD/unicodestrings.h \
     $$PWD/utils/bytearray.h \
+    $$PWD/utils/foreignapps.h \
     $$PWD/utils/fs.h \
     $$PWD/utils/gzip.h \
     $$PWD/utils/misc.h \
@@ -74,6 +76,7 @@ HEADERS += \
 
 SOURCES += \
     $$PWD/asyncfilestorage.cpp \
+    $$PWD/bittorrent/filepriority.cpp \
     $$PWD/bittorrent/infohash.cpp \
     $$PWD/bittorrent/magneturi.cpp \
     $$PWD/bittorrent/peerinfo.cpp \
@@ -127,6 +130,7 @@ SOURCES += \
     $$PWD/torrentfilter.cpp \
     $$PWD/tristatebool.cpp \
     $$PWD/utils/bytearray.cpp \
+    $$PWD/utils/foreignapps.cpp \
     $$PWD/utils/fs.cpp \
     $$PWD/utils/gzip.cpp \
     $$PWD/utils/misc.cpp \

src/base/bittorrent/filepriority.cpp

@@ -0,0 +1,46 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2018  Thomas Piccirello <thomas.piccirello@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#include "filepriority.h"
+
+namespace BitTorrent
+{
+    bool isValidFilePriority(const BitTorrent::FilePriority priority)
+    {
+        switch (priority) {
+        case BitTorrent::FilePriority::Ignored:
+        case BitTorrent::FilePriority::Normal:
+        case BitTorrent::FilePriority::High:
+        case BitTorrent::FilePriority::Maximum:
+        case BitTorrent::FilePriority::Mixed:
+            return true;
+        default:
+            return false;
+        }
+    }
+}

src/base/bittorrent/filepriority.h

@@ -0,0 +1,43 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2018  Thomas Piccirello <thomas.piccirello@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#pragma once
+
+namespace BitTorrent
+{
+    enum class FilePriority : int
+    {
+        Ignored = 0,
+        Normal = 1,
+        High = 6,
+        Maximum = 7,
+        Mixed = -1
+    };
+
+    bool isValidFilePriority(BitTorrent::FilePriority priority);
+}

src/base/bittorrent/infohash.cpp

@@ -26,9 +26,10 @@
  * exception statement from your version.
  */
 
-#include <QHash>
 #include "infohash.h"
 
+#include <QHash>
+
 using namespace BitTorrent;
 
 InfoHash::InfoHash()

src/base/bittorrent/infohash.h

@@ -29,8 +29,8 @@
 #ifndef BITTORRENT_INFOHASH_H
 #define BITTORRENT_INFOHASH_H
 
-#include <QString>
 #include <libtorrent/sha1_hash.hpp>
+#include <QString>
 
 namespace BitTorrent
 {

src/base/bittorrent/magneturi.cpp

@@ -26,16 +26,17 @@
  * exception statement from your version.
  */
 
-#include <QByteArray>
-#include <QRegExp>
-#include <QStringList>
+#include "magneturi.h"
 
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/error_code.hpp>
 #include <libtorrent/magnet_uri.hpp>
 
+#include <QByteArray>
+#include <QRegularExpression>
+#include <QStringList>
+
 #include "base/utils/string.h"
-#include "magneturi.h"
 
 namespace
 {
@@ -45,7 +46,7 @@ namespace
         rawBc = rawBc.mid(8); // skip bc://bt/
         rawBc = QByteArray::fromBase64(rawBc); // Decode base64
         // Format is now AA/url_encoded_filename/size_bytes/info_hash/ZZ
-        QStringList parts = QString(rawBc).split("/");
+        QStringList parts = QString(rawBc).split('/');
         if (parts.size() != 5) return QString();
 
         QString filename = parts.at(1);
@@ -69,8 +70,8 @@ MagnetUri::MagnetUri(const QString &source)
         qDebug("Creating magnet link from bc link");
         m_url = bcLinkToMagnet(source);
     }
-    else if (((source.size() == 40) && !source.contains(QRegExp("[^0-9A-Fa-f]")))
-             || ((source.size() == 32) && !source.contains(QRegExp("[^2-7A-Za-z]")))) {
+    else if (((source.size() == 40) && !source.contains(QRegularExpression("[^0-9A-Fa-f]")))
+             || ((source.size() == 32) && !source.contains(QRegularExpression("[^2-7A-Za-z]")))) {
         m_url = "magnet:?xt=urn:btih:" + source;
     }
 
@@ -82,10 +83,10 @@ MagnetUri::MagnetUri(const QString &source)
     m_hash = m_addTorrentParams.info_hash;
     m_name = QString::fromStdString(m_addTorrentParams.name);
 
-    foreach (const std::string &tracker, m_addTorrentParams.trackers)
+    for (const std::string &tracker : m_addTorrentParams.trackers)
         m_trackers.append(QString::fromStdString(tracker));
 
-    foreach (const std::string &urlSeed, m_addTorrentParams.url_seeds)
+    for (const std::string &urlSeed : m_addTorrentParams.url_seeds)
         m_urlSeeds.append(QUrl(urlSeed.c_str()));
 }
 

src/base/bittorrent/peerinfo.cpp

@@ -246,8 +246,8 @@ QString PeerInfo::connectionType() const
 
 void PeerInfo::calcRelevance(const TorrentHandle *torrent)
 {
-    const QBitArray &allPieces = torrent->pieces();
-    const QBitArray &peerPieces = pieces();
+    const QBitArray allPieces = torrent->pieces();
+    const QBitArray peerPieces = pieces();
 
     int localMissing = 0;
     int remoteHaves = 0;
@@ -377,7 +377,7 @@ void PeerInfo::determineFlags()
 
     // L = Peer is local
     if (fromLSD()) {
-        m_flags += "L";
+        m_flags += 'L';
         flagsDescriptionList += "L = "
                 + tr("peer from LSD");
     }

src/base/bittorrent/private/filterparserthread.cpp

@@ -407,24 +407,24 @@ int FilterParserThread::parseP2PFilterFile()
 int FilterParserThread::getlineInStream(QDataStream &stream, std::string &name, char delim)
 {
     char c;
-    int total_read = 0;
+    int totalRead = 0;
     int read;
     do {
         read = stream.readRawData(&c, 1);
-        total_read += read;
+        totalRead += read;
         if (read > 0) {
             if (c != delim) {
                 name += c;
             }
             else {
                 // Delim found
-                return total_read;
+                return totalRead;
             }
         }
     }
-    while(read > 0);
+    while (read > 0);
 
-    return total_read;
+    return totalRead;
 }
 
 // Parser for PeerGuardian ip filter in p2p format
@@ -455,7 +455,7 @@ int FilterParserThread::parseP2BFilterFile()
         unsigned int start, end;
 
         std::string name;
-        while(getlineInStream(stream, name, '\0') && !m_abort) {
+        while (getlineInStream(stream, name, '\0') && !m_abort) {
             if (!stream.readRawData(reinterpret_cast<char*>(&start), sizeof(start))
                 || !stream.readRawData(reinterpret_cast<char*>(&end), sizeof(end))) {
                 LogMsg(tr("Parsing Error: The filter file is not a valid PeerGuardian P2B file."), Log::CRITICAL);

src/base/bittorrent/private/resumedatasavingmanager.cpp

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,30 +26,36 @@
  * exception statement from your version.
  */
 
+#include "resumedatasavingmanager.h"
+
 #include <QDebug>
 #include <QSaveFile>
 
 #include "base/logger.h"
 #include "base/utils/fs.h"
-#include "resumedatasavingmanager.h"
 
 ResumeDataSavingManager::ResumeDataSavingManager(const QString &resumeFolderPath)
     : m_resumeDataDir(resumeFolderPath)
 {
 }
 
-void ResumeDataSavingManager::saveResumeData(QString infoHash, QByteArray data) const
+void ResumeDataSavingManager::save(const QString &filename, const QByteArray &data) const
 {
-    QString filename = QString("%1.fastresume").arg(infoHash);
-    QString filepath = m_resumeDataDir.absoluteFilePath(filename);
+    const QString filepath = m_resumeDataDir.absoluteFilePath(filename);
 
-    qDebug() << "Saving resume data in" << filepath;
-    QSaveFile resumeFile(filepath);
-    if (resumeFile.open(QIODevice::WriteOnly)) {
-        resumeFile.write(data);
-        if (!resumeFile.commit()) {
-            Logger::instance()->addMessage(QString("Couldn't save resume data in %1. Error: %2")
-                                           .arg(filepath, resumeFile.errorString()), Log::WARNING);
+    QSaveFile file {filepath};
+    if (file.open(QIODevice::WriteOnly)) {
+        file.write(data);
+        if (!file.commit()) {
+            Logger::instance()->addMessage(QString("Couldn't save data in '%1'. Error: %2")
+                                           .arg(filepath, file.errorString()), Log::WARNING);
         }
     }
 }
+
+void ResumeDataSavingManager::remove(const QString &filename) const
+{
+    const QString filepath = m_resumeDataDir.absoluteFilePath(filename);
+
+    Utils::Fs::forceRemove(filepath);
+}

src/base/bittorrent/private/resumedatasavingmanager.h

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,8 +26,7 @@
  * exception statement from your version.
  */
 
-#ifndef RESUMEDATASAVINGMANAGER_H
-#define RESUMEDATASAVINGMANAGER_H
+#pragma once
 
 #include <QByteArray>
 #include <QDir>
@@ -36,15 +35,15 @@
 class ResumeDataSavingManager : public QObject
 {
     Q_OBJECT
+    Q_DISABLE_COPY(ResumeDataSavingManager)
 
 public:
     explicit ResumeDataSavingManager(const QString &resumeFolderPath);
 
 public slots:
-    void saveResumeData(QString infoHash, QByteArray data) const;
+    void save(const QString &filename, const QByteArray &data) const;
+    void remove(const QString &filename) const;
 
 private:
     QDir m_resumeDataDir;
 };
-
-#endif // RESUMEDATASAVINGMANAGER_H

src/base/bittorrent/private/statistics.h

@@ -28,7 +28,6 @@ private:
     void save() const;
     void load();
 
-private:
     BitTorrent::Session *m_session;
     // Will overflow at 15.9 EiB
     quint64 m_alltimeUL;

src/base/bittorrent/session.h

@@ -138,7 +138,7 @@ namespace BitTorrent
     class Tracker;
     class MagnetUri;
     class TrackerEntry;
-    struct AddTorrentData;
+    struct CreateTorrentParams;
 
     struct TorrentStatusReport
     {
@@ -237,7 +237,7 @@ namespace BitTorrent
             int diskJobTime = 0;
         } disk;
     };
-#endif
+#endif // LIBTORRENT_VERSION_NUM >= 10100
 
     class Session : public QObject
     {
@@ -375,6 +375,10 @@ namespace BitTorrent
         void setAnnounceToAllTrackers(bool val);
         bool announceToAllTiers() const;
         void setAnnounceToAllTiers(bool val);
+        int asyncIOThreads() const;
+        void setAsyncIOThreads(int num);
+        int checkingMemUsage() const;
+        void setCheckingMemUsage(int size);
         int diskCacheSize() const;
         void setDiskCacheSize(int size);
         int diskCacheTTL() const;
@@ -452,6 +456,7 @@ namespace BitTorrent
         TorrentStatusReport torrentStatusReport() const;
         bool hasActiveTorrents() const;
         bool hasUnfinishedTorrents() const;
+        bool hasRunningSeed() const;
         const SessionStatus &status() const;
         const CacheStatus &cacheStatus() const;
         quint64 getAlltimeDL() const;
@@ -478,6 +483,7 @@ namespace BitTorrent
 
         // TorrentHandle interface
         void handleTorrentShareLimitChanged(TorrentHandle *const torrent);
+        void handleTorrentNameChanged(TorrentHandle *const torrent);
         void handleTorrentSavePathChanged(TorrentHandle *const torrent);
         void handleTorrentCategoryChanged(TorrentHandle *const torrent, const QString &oldCategory);
         void handleTorrentTagAdded(TorrentHandle *const torrent, const QString &tag);
@@ -547,7 +553,7 @@ namespace BitTorrent
         void generateResumeData(bool final = false);
         void handleIPFilterParsed(int ruleCount);
         void handleIPFilterError();
-        void handleDownloadFinished(const QString &url, const QString &filePath);
+        void handleDownloadFinished(const QString &url, const QByteArray &data);
         void handleDownloadFailed(const QString &url, const QString &reason);
         void handleRedirectedToMagnet(const QString &url, const QString &magnetUri);
 
@@ -595,14 +601,14 @@ namespace BitTorrent
         void enableIPFilter();
         void disableIPFilter();
 
-        bool addTorrent_impl(AddTorrentData addData, const MagnetUri &magnetUri,
+        bool addTorrent_impl(CreateTorrentParams params, const MagnetUri &magnetUri,
                              TorrentInfo torrentInfo = TorrentInfo(),
                              const QByteArray &fastresumeData = QByteArray());
         bool findIncompleteFiles(TorrentInfo &torrentInfo, QString &savePath) const;
 
         void updateSeedingLimitTimer();
         void exportTorrentFile(TorrentHandle *const torrent, TorrentExportFolder folder = TorrentExportFolder::Regular);
-        void saveTorrentResumeData(TorrentHandle *const torrent, bool finalSave = false);
+        void saveTorrentResumeData(TorrentHandle *const torrent);
 
         void handleAlert(libtorrent::alert *a);
         void dispatchTorrentAlert(libtorrent::alert *a);
@@ -628,6 +634,8 @@ namespace BitTorrent
         void createTorrentHandle(const libtorrent::torrent_handle &nativeHandle);
 
         void saveResumeData();
+        void saveTorrentsQueue();
+        void removeTorrentsQueue();
 
 #if LIBTORRENT_VERSION_NUM < 10100
         void dispatchAlerts(libtorrent::alert *alertPtr);
@@ -651,6 +659,8 @@ namespace BitTorrent
         CachedSettingValue<QString> m_IPFilterFile;
         CachedSettingValue<bool> m_announceToAllTrackers;
         CachedSettingValue<bool> m_announceToAllTiers;
+        CachedSettingValue<int> m_asyncIOThreads;
+        CachedSettingValue<int> m_checkingMemUsage;
         CachedSettingValue<int> m_diskCacheSize;
         CachedSettingValue<int> m_diskCacheTTL;
         CachedSettingValue<bool> m_useOSCache;
@@ -754,7 +764,7 @@ namespace BitTorrent
 
         QHash<InfoHash, TorrentInfo> m_loadedMetadata;
         QHash<InfoHash, TorrentHandle *> m_torrents;
-        QHash<InfoHash, AddTorrentData> m_addingTorrents;
+        QHash<InfoHash, CreateTorrentParams> m_addingTorrents;
         QHash<QString, AddTorrentParams> m_downloadedTorrents;
         QHash<InfoHash, RemovingTorrentData> m_removingTorrents;
         TorrentStatusReport m_torrentStatusReport;

src/base/bittorrent/torrentcreatorthread.cpp

@@ -89,7 +89,7 @@ void TorrentCreatorThread::run()
     emit updateProgress(0);
 
     try {
-        const QString parentPath = Utils::Fs::branchPath(m_params.inputPath) + "/";
+        const QString parentPath = Utils::Fs::branchPath(m_params.inputPath) + '/';
 
         // Adding files to the torrent
         libt::file_storage fs;
@@ -110,7 +110,7 @@ void TorrentCreatorThread::run()
             QStringList fileNames;
             QHash<QString, boost::int64_t> fileSizeMap;
 
-            for (const auto &dir : qAsConst(dirs)) {
+            for (const auto &dir : asConst(dirs)) {
                 QStringList tmpNames;  // natural sort files within each dir
 
                 QDirIterator fileIter(dir, QDir::Files);
@@ -126,7 +126,7 @@ void TorrentCreatorThread::run()
                 fileNames += tmpNames;
             }
 
-            for (const auto &fileName : qAsConst(fileNames))
+            for (const auto &fileName : asConst(fileNames))
                 fs.add_file(fileName.toStdString(), fileSizeMap[fileName]);
         }
 
@@ -141,14 +141,14 @@ void TorrentCreatorThread::run()
 #endif
 
         // Add url seeds
-        foreach (QString seed, m_params.urlSeeds) {
+        for (QString seed : asConst(m_params.urlSeeds)) {
             seed = seed.trimmed();
             if (!seed.isEmpty())
                 newTorrent.add_url_seed(seed.toStdString());
         }
 
         int tier = 0;
-        foreach (const QString &tracker, m_params.trackers) {
+        for (const QString &tracker : asConst(m_params.trackers)) {
             if (tracker.isEmpty())
                 ++tier;
             else

src/base/bittorrent/torrenthandle.cpp

@@ -55,6 +55,7 @@
 #include <windows.h>
 #endif
 
+#include "base/global.h"
 #include "base/logger.h"
 #include "base/preferences.h"
 #include "base/profile.h"
@@ -77,7 +78,7 @@ namespace
     ListType setToEntryList(const QSet<QString> &input)
     {
         ListType entryList;
-        foreach (const QString &setValue, input)
+        for (const QString &setValue : input)
             entryList.emplace_back(setValue.toStdString());
         return entryList;
     }
@@ -85,16 +86,16 @@ namespace
 
 // AddTorrentData
 
-AddTorrentData::AddTorrentData()
-    : resumed(false)
+CreateTorrentParams::CreateTorrentParams()
+    : restored(false)
     , disableTempPath(false)
     , sequential(false)
     , firstLastPiecePriority(false)
     , hasSeedStatus(false)
     , skipChecking(false)
     , hasRootFolder(true)
-    , addForced(false)
-    , addPaused(false)
+    , forced(false)
+    , paused(false)
     , uploadLimit(-1)
     , downloadLimit(-1)
     , ratioLimit(TorrentHandle::USE_GLOBAL_RATIO)
@@ -102,8 +103,8 @@ AddTorrentData::AddTorrentData()
 {
 }
 
-AddTorrentData::AddTorrentData(const AddTorrentParams &params)
-    : resumed(false)
+CreateTorrentParams::CreateTorrentParams(const AddTorrentParams &params)
+    : restored(false)
     , name(params.name)
     , category(params.category)
     , tags(params.tags)
@@ -116,8 +117,8 @@ AddTorrentData::AddTorrentData(const AddTorrentParams &params)
     , hasRootFolder(params.createSubfolder == TriStateBool::Undefined
                     ? Session::instance()->isCreateTorrentSubfolder()
                     : params.createSubfolder == TriStateBool::True)
-    , addForced(params.addForced == TriStateBool::True)
-    , addPaused(params.addPaused == TriStateBool::Undefined
+    , forced(params.addForced == TriStateBool::True)
+    , paused(params.addPaused == TriStateBool::Undefined
                 ? Session::instance()->isAddTorrentPaused()
                 : params.addPaused == TriStateBool::True)
     , uploadLimit(params.uploadLimit)
@@ -158,40 +159,39 @@ namespace
 {
     // new constructor is available
     template<typename T, typename std::enable_if<std::is_constructible<T, libt::torrent_info, bool>::value, int>::type = 0>
-    T makeTorrentCreator(const libtorrent::torrent_info & ti)
+    T makeTorrentCreator(const libtorrent::torrent_info &ti)
     {
         return T(ti, true);
     }
 
     // new constructor isn't available
     template<typename T, typename std::enable_if<!std::is_constructible<T, libt::torrent_info, bool>::value, int>::type = 0>
-    T makeTorrentCreator(const libtorrent::torrent_info & ti)
+    T makeTorrentCreator(const libtorrent::torrent_info &ti)
     {
         return T(ti);
     }
 }
 
 TorrentHandle::TorrentHandle(Session *session, const libtorrent::torrent_handle &nativeHandle,
-                                     const AddTorrentData &data)
+                                     const CreateTorrentParams &params)
     : QObject(session)
     , m_session(session)
     , m_nativeHandle(nativeHandle)
     , m_state(TorrentState::Unknown)
     , m_renameCount(0)
-    , m_useAutoTMM(data.savePath.isEmpty())
-    , m_name(data.name)
-    , m_savePath(Utils::Fs::toNativePath(data.savePath))
-    , m_category(data.category)
-    , m_tags(data.tags)
-    , m_hasSeedStatus(data.hasSeedStatus)
-    , m_ratioLimit(data.ratioLimit)
-    , m_seedingTimeLimit(data.seedingTimeLimit)
-    , m_tempPathDisabled(data.disableTempPath)
+    , m_useAutoTMM(params.savePath.isEmpty())
+    , m_name(params.name)
+    , m_savePath(Utils::Fs::toNativePath(params.savePath))
+    , m_category(params.category)
+    , m_tags(params.tags)
+    , m_hasSeedStatus(params.hasSeedStatus)
+    , m_ratioLimit(params.ratioLimit)
+    , m_seedingTimeLimit(params.seedingTimeLimit)
+    , m_tempPathDisabled(params.disableTempPath)
     , m_hasMissingFiles(false)
-    , m_hasRootFolder(data.hasRootFolder)
+    , m_hasRootFolder(params.hasRootFolder)
     , m_needsToSetFirstLastPiecePriority(false)
-    , m_pauseAfterRecheck(false)
-    , m_needSaveResumeData(false)
+    , m_needsToStartForced(params.forced)
 {
     if (m_useAutoTMM)
         m_savePath = Utils::Fs::toNativePath(m_session->categorySavePath(m_category));
@@ -207,15 +207,29 @@ TorrentHandle::TorrentHandle(Session *session, const libtorrent::torrent_handle
     // download sequentially or have first/last piece priority enabled when
     // its resume data was saved. These two settings are restored later. But
     // if we set them to false now, both will erroneously not be restored.
-    if (!data.resumed || data.sequential)
-        setSequentialDownload(data.sequential);
-    if (!data.resumed || data.firstLastPiecePriority)
-        setFirstLastPiecePriority(data.firstLastPiecePriority);
+    if (!params.restored || params.sequential)
+        setSequentialDownload(params.sequential);
+    if (!params.restored || params.firstLastPiecePriority)
+        setFirstLastPiecePriority(params.firstLastPiecePriority);
 
-    if (!data.resumed && hasMetadata()) {
+    if (!params.restored && hasMetadata()) {
         if (filesCount() == 1)
             m_hasRootFolder = false;
     }
+
+    // "started" means "all initialization has completed and torrent has started regular processing".
+    // When torrent added/restored in "paused" state it become "started" immediately after construction.
+    // When it is added/restored in "resumed" state, it become "started" after it is really resumed
+    // (i.e. after receiving "torrent resumed" alert).
+    if (params.paused) {
+        m_startupState = Started;
+    }
+    else if (!params.restored || !hasMetadata()) {
+        // Resume torrent because it was added in "resumed" state
+        // but it's actually paused during initialization
+        m_startupState = Starting;
+        resume(params.forced);
+    }
 }
 
 TorrentHandle::~TorrentHandle() {}
@@ -315,7 +329,7 @@ QString TorrentHandle::rootPath(bool actual) const
         return QString();
 
     QString firstFilePath = filePath(0);
-    const int slashIndex = firstFilePath.indexOf("/");
+    const int slashIndex = firstFilePath.indexOf('/');
     if (slashIndex >= 0)
         return QDir(savePath(actual)).absoluteFilePath(firstFilePath.left(slashIndex));
     else
@@ -361,10 +375,9 @@ QString TorrentHandle::nativeActualSavePath() const
 QList<TrackerEntry> TorrentHandle::trackers() const
 {
     QList<TrackerEntry> entries;
-    std::vector<libt::announce_entry> announces;
+    const std::vector<libt::announce_entry> announces = m_nativeHandle.trackers();
 
-    announces = m_nativeHandle.trackers();
-    foreach (const libt::announce_entry &tracker, announces)
+    for (const libt::announce_entry &tracker : announces)
         entries << tracker;
 
     return entries;
@@ -378,7 +391,7 @@ QHash<QString, TrackerInfo> TorrentHandle::trackerInfos() const
 void TorrentHandle::addTrackers(const QList<TrackerEntry> &trackers)
 {
     QList<TrackerEntry> addedTrackers;
-    foreach (const TrackerEntry &tracker, trackers) {
+    for (const TrackerEntry &tracker : trackers) {
         if (addTracker(tracker))
             addedTrackers << tracker;
     }
@@ -387,13 +400,13 @@ void TorrentHandle::addTrackers(const QList<TrackerEntry> &trackers)
         m_session->handleTorrentTrackersAdded(this, addedTrackers);
 }
 
-void TorrentHandle::replaceTrackers(QList<TrackerEntry> trackers)
+void TorrentHandle::replaceTrackers(const QList<TrackerEntry> &trackers)
 {
     QList<TrackerEntry> existingTrackers = this->trackers();
     QList<TrackerEntry> addedTrackers;
 
     std::vector<libt::announce_entry> announces;
-    foreach (const TrackerEntry &tracker, trackers) {
+    for (const TrackerEntry &tracker : trackers) {
         announces.push_back(tracker.nativeEntry());
         if (!existingTrackers.contains(tracker))
             addedTrackers << tracker;
@@ -425,9 +438,9 @@ bool TorrentHandle::addTracker(const TrackerEntry &tracker)
 QList<QUrl> TorrentHandle::urlSeeds() const
 {
     QList<QUrl> urlSeeds;
-    std::set<std::string> seeds = m_nativeHandle.url_seeds();
+    const std::set<std::string> seeds = m_nativeHandle.url_seeds();
 
-    foreach (const std::string &urlSeed, seeds)
+    for (const std::string &urlSeed : seeds)
         urlSeeds.append(QUrl(urlSeed.c_str()));
 
     return urlSeeds;
@@ -436,7 +449,7 @@ QList<QUrl> TorrentHandle::urlSeeds() const
 void TorrentHandle::addUrlSeeds(const QList<QUrl> &urlSeeds)
 {
     QList<QUrl> addedUrlSeeds;
-    foreach (const QUrl &urlSeed, urlSeeds) {
+    for (const QUrl &urlSeed : urlSeeds) {
         if (addUrlSeed(urlSeed))
             addedUrlSeeds << urlSeed;
     }
@@ -448,7 +461,7 @@ void TorrentHandle::addUrlSeeds(const QList<QUrl> &urlSeeds)
 void TorrentHandle::removeUrlSeeds(const QList<QUrl> &urlSeeds)
 {
     QList<QUrl> removedUrlSeeds;
-    foreach (const QUrl &urlSeed, urlSeeds) {
+    for (const QUrl &urlSeed : urlSeeds) {
         if (removeUrlSeed(urlSeed))
             removedUrlSeeds << urlSeed;
     }
@@ -488,18 +501,12 @@ bool TorrentHandle::connectPeer(const PeerAddress &peerAddress)
 
 bool TorrentHandle::needSaveResumeData() const
 {
-    if (m_needSaveResumeData) return true;
-
     return m_nativeHandle.need_save_resume_data();
 }
 
-void TorrentHandle::saveResumeData(bool updateStatus)
+void TorrentHandle::saveResumeData()
 {
-    if (updateStatus) // to update queue_position, see discussion in PR #6154
-        this->updateStatus();
-
     m_nativeHandle.save_resume_data();
-    m_needSaveResumeData = false;
 }
 
 int TorrentHandle::filesCount() const
@@ -546,7 +553,7 @@ bool TorrentHandle::belongsToCategory(const QString &category) const
 
     if (m_category == category) return true;
 
-    if (m_session->isSubcategoriesEnabled() && m_category.startsWith(category + "/"))
+    if (m_session->isSubcategoriesEnabled() && m_category.startsWith(category + '/'))
         return true;
 
     return false;
@@ -573,7 +580,6 @@ bool TorrentHandle::addTag(const QString &tag)
                 return false;
         m_tags.insert(tag);
         m_session->handleTorrentTagAdded(this, tag);
-        m_needSaveResumeData = true;
         return true;
     }
     return false;
@@ -583,7 +589,6 @@ bool TorrentHandle::removeTag(const QString &tag)
 {
     if (m_tags.remove(tag)) {
         m_session->handleTorrentTagRemoved(this, tag);
-        m_needSaveResumeData = true;
         return true;
     }
     return false;
@@ -591,8 +596,7 @@ bool TorrentHandle::removeTag(const QString &tag)
 
 void TorrentHandle::removeAllTags()
 {
-    // QT automatically copies the container in foreach, so it's safe to mutate it.
-    foreach (const QString &tag, m_tags)
+    for (const QString &tag : asConst(tags()))
         removeTag(tag);
 }
 
@@ -618,7 +622,7 @@ QString TorrentHandle::filePath(int index) const
 
 QString TorrentHandle::fileName(int index) const
 {
-    if (!hasMetadata()) return  QString();
+    if (!hasMetadata()) return QString();
     return Utils::Fs::fileName(filePath(index));
 }
 
@@ -631,7 +635,7 @@ qlonglong TorrentHandle::fileSize(int index) const
 // to all files in a torrent
 QStringList TorrentHandle::absoluteFilePaths() const
 {
-    if (!hasMetadata()) return  QStringList();
+    if (!hasMetadata()) return QStringList();
 
     QDir saveDir(savePath(true));
     QStringList res;
@@ -642,7 +646,7 @@ QStringList TorrentHandle::absoluteFilePaths() const
 
 QStringList TorrentHandle::absoluteFilePathsUnwanted() const
 {
-    if (!hasMetadata()) return  QStringList();
+    if (!hasMetadata()) return QStringList();
 
     QDir saveDir(savePath(true));
     QStringList res;
@@ -802,7 +806,10 @@ TorrentState TorrentHandle::state() const
 
 void TorrentHandle::updateState()
 {
-    if (isMoveInProgress()) {
+    if (m_nativeStatus.state == libt::torrent_status::checking_resume_data) {
+        m_state = TorrentState::CheckingResumeData;
+    }
+    else if (isMoveInProgress()) {
         m_state = TorrentState::Moving;
     }
     else if (isPaused()) {
@@ -834,9 +841,6 @@ void TorrentHandle::updateState()
                 m_state = TorrentState::QueuedForChecking;
                 break;
 #endif
-            case libt::torrent_status::checking_resume_data:
-                m_state = TorrentState::CheckingResumeData;
-                break;
             case libt::torrent_status::checking_files:
                 m_state = m_hasSeedStatus ? TorrentState::CheckingUploading : TorrentState::CheckingDownloading;
                 break;
@@ -878,9 +882,9 @@ bool TorrentHandle::hasError() const
 
 bool TorrentHandle::hasFilteredPieces() const
 {
-    std::vector<int> pp = m_nativeHandle.piece_priorities();
+    const std::vector<int> pp = m_nativeHandle.piece_priorities();
 
-    foreach (const int priority, pp)
+    for (const int priority : pp)
         if (priority == 0) return true;
 
     return false;
@@ -968,12 +972,13 @@ qulonglong TorrentHandle::eta() const
 QVector<qreal> TorrentHandle::filesProgress() const
 {
     std::vector<boost::int64_t> fp;
-    QVector<qreal> result;
     m_nativeHandle.file_progress(fp, libt::torrent_handle::piece_granularity);
 
-    int count = static_cast<int>(fp.size());
+    const int count = static_cast<int>(fp.size());
+    QVector<qreal> result;
+    result.reserve(count);
     for (int i = 0; i < count; ++i) {
-        qlonglong size = fileSize(i);
+        const qlonglong size = fileSize(i);
         if ((size <= 0) || (fp[i] == size))
             result << 1;
         else
@@ -1081,7 +1086,7 @@ QList<PeerInfo> TorrentHandle::peers() const
 
     m_nativeHandle.get_peer_info(nativePeers);
 
-    foreach (const libt::peer_info &peer, nativePeers)
+    for (const libt::peer_info &peer : nativePeers)
         peers << PeerInfo(this, peer);
 
     return peers;
@@ -1198,23 +1203,18 @@ void TorrentHandle::setName(const QString &name)
 {
     if (m_name != name) {
         m_name = name;
-        m_needSaveResumeData = true;
+        m_session->handleTorrentNameChanged(this);
     }
 }
 
 bool TorrentHandle::setCategory(const QString &category)
 {
     if (m_category != category) {
-        if (!category.isEmpty()) {
-            if (!Session::isValidCategoryName(category)) return false;
-            if (!m_session->categories().contains(category))
-                if (!m_session->addCategory(category))
-                    return false;
-        }
+        if (!category.isEmpty() && !m_session->categories().contains(category))
+            return false;
 
         QString oldCategory = m_category;
         m_category = category;
-        m_needSaveResumeData = true;
         m_session->handleTorrentCategoryChanged(this, oldCategory);
 
         if (m_useAutoTMM) {
@@ -1252,7 +1252,6 @@ void TorrentHandle::move_impl(QString path, bool overwrite)
     }
     else {
         m_savePath = path;
-        m_needSaveResumeData = true;
         m_session->handleTorrentSavePathChanged(this);
     }
 }
@@ -1271,12 +1270,13 @@ void TorrentHandle::forceRecheck()
 {
     if (!hasMetadata()) return;
 
+    m_nativeHandle.force_recheck();
+    m_unchecked = false;
+
     if (isPaused()) {
-        m_pauseAfterRecheck = true;
+        m_nativeHandle.stop_when_ready(true);
         resume_impl(true, true);
     }
-
-    m_nativeHandle.force_recheck();
 }
 
 void TorrentHandle::setSequentialDownload(bool b)
@@ -1294,13 +1294,21 @@ void TorrentHandle::toggleSequentialDownload()
 
 void TorrentHandle::setFirstLastPiecePriority(const bool enabled)
 {
+    setFirstLastPiecePriorityImpl(enabled);
+}
+
+void TorrentHandle::setFirstLastPiecePriorityImpl(const bool enabled, const QVector<int> &updatedFilePrio)
+{
+    // Download first and last pieces first for every file in the torrent
+
     if (!hasMetadata()) {
         m_needsToSetFirstLastPiecePriority = enabled;
         return;
     }
 
-    // Download first and last pieces first for every file in the torrent
-    const std::vector<int> filePriorities = nativeHandle().file_priorities();
+    // Updating file priorities is an async operation in libtorrent, when we just updated it and immediately query it
+    // we might get the old/wrong values, so we rely on `updatedFilePrio` in this case.
+    const std::vector<int> filePriorities = !updatedFilePrio.isEmpty() ? updatedFilePrio.toStdVector() : nativeHandle().file_priorities();
     std::vector<int> piecePriorities = nativeHandle().piece_priorities();
     for (int index = 0; index < static_cast<int>(filePriorities.size()); ++index) {
         const int filePrio = filePriorities[index];
@@ -1336,6 +1344,12 @@ void TorrentHandle::pause()
 
     m_nativeHandle.auto_managed(false);
     m_nativeHandle.pause();
+
+    // Libtorrent doesn't emit a torrent_paused_alert when the
+    // torrent is queued (no I/O)
+    // We test on the cached m_nativeStatus
+    if (isQueued())
+        m_session->handleTorrentPaused(this);
 }
 
 void TorrentHandle::resume(bool forced)
@@ -1347,7 +1361,12 @@ void TorrentHandle::resume_impl(bool forced, bool uploadMode)
 {
     if (hasError())
         m_nativeHandle.clear_error();
-    m_hasMissingFiles = false;
+
+    if (m_hasMissingFiles) {
+        m_hasMissingFiles = false;
+        m_nativeHandle.force_recheck();
+    }
+
     m_nativeHandle.auto_managed(!forced);
     m_nativeHandle.set_upload_mode(uploadMode);
     m_nativeHandle.resume();
@@ -1405,16 +1424,6 @@ bool TorrentHandle::saveTorrentFile(const QString &path)
     return false;
 }
 
-void TorrentHandle::setFilePriority(int index, int priority)
-{
-    std::vector<int> priorities = m_nativeHandle.file_priorities();
-
-    if ((priorities.size() > static_cast<quint64>(index)) && (priorities[index] != priority)) {
-        priorities[index] = priority;
-        prioritizeFiles(QVector<int>::fromStdVector(priorities));
-    }
-}
-
 void TorrentHandle::handleStateUpdate(const libt::torrent_status &nativeStatus)
 {
     updateStatus(nativeStatus);
@@ -1539,21 +1548,32 @@ void TorrentHandle::handleTrackerErrorAlert(const libtorrent::tracker_error_aler
 void TorrentHandle::handleTorrentCheckedAlert(const libtorrent::torrent_checked_alert *p)
 {
     Q_UNUSED(p);
-    qDebug("%s have just finished checking", qUtf8Printable(hash()));
+    qDebug("\"%s\" have just finished checking", qUtf8Printable(name()));
+
+    if (m_startupState == NotStarted) {
+        if (!m_hasMissingFiles) {
+            // Resume torrent because it was added in "resumed" state
+            // but it's actually paused during initialization.
+            m_startupState = Starting;
+            resume(m_needsToStartForced);
+        }
+        else {
+            // Torrent that has missing files is marked as "started"
+            // but it remains paused.
+            m_startupState = Started;
+        }
+    }
 
     updateStatus();
 
-    if ((progress() < 1.0) && (wantedSize() > 0))
-        m_hasSeedStatus = false;
-    else if (progress() == 1.0)
-        m_hasSeedStatus = true;
+    if (!m_hasMissingFiles) {
+        if ((progress() < 1.0) && (wantedSize() > 0))
+            m_hasSeedStatus = false;
+        else if (progress() == 1.0)
+            m_hasSeedStatus = true;
 
-    adjustActualSavePath();
-    manageIncompleteFiles();
-
-    if (m_pauseAfterRecheck) {
-        m_pauseAfterRecheck = false;
-        pause();
+        adjustActualSavePath();
+        manageIncompleteFiles();
     }
 
     m_session->handleTorrentChecked(this);
@@ -1562,7 +1582,7 @@ void TorrentHandle::handleTorrentCheckedAlert(const libtorrent::torrent_checked_
 void TorrentHandle::handleTorrentFinishedAlert(const libtorrent::torrent_finished_alert *p)
 {
     Q_UNUSED(p);
-    qDebug("Got a torrent finished alert for %s", qUtf8Printable(name()));
+    qDebug("Got a torrent finished alert for \"%s\"", qUtf8Printable(name()));
     qDebug("Torrent has seed status: %s", m_hasSeedStatus ? "yes" : "no");
     if (m_hasSeedStatus) return;
 
@@ -1574,13 +1594,13 @@ void TorrentHandle::handleTorrentFinishedAlert(const libtorrent::torrent_finishe
     manageIncompleteFiles();
 
     const bool recheckTorrentsOnCompletion = Preferences::instance()->recheckTorrentsOnCompletion();
-    if (isMoveInProgress() || m_renameCount > 0) {
+    if (isMoveInProgress() || (m_renameCount > 0)) {
         if (recheckTorrentsOnCompletion)
             m_moveFinishedTriggers.append(boost::bind(&TorrentHandle::forceRecheck, this));
         m_moveFinishedTriggers.append(boost::bind(&Session::handleTorrentFinished, m_session, this));
     }
     else {
-        if (recheckTorrentsOnCompletion)
+        if (recheckTorrentsOnCompletion && m_unchecked)
             forceRecheck();
         m_session->handleTorrentFinished(this);
     }
@@ -1589,15 +1609,22 @@ void TorrentHandle::handleTorrentFinishedAlert(const libtorrent::torrent_finishe
 void TorrentHandle::handleTorrentPausedAlert(const libtorrent::torrent_paused_alert *p)
 {
     Q_UNUSED(p);
-    updateStatus();
-    m_speedMonitor.reset();
-    m_session->handleTorrentPaused(this);
+
+    if (m_startupState == Started) {
+        updateStatus();
+        m_speedMonitor.reset();
+        m_session->handleTorrentPaused(this);
+    }
 }
 
 void TorrentHandle::handleTorrentResumedAlert(const libtorrent::torrent_resumed_alert *p)
 {
     Q_UNUSED(p);
-    m_session->handleTorrentResumed(this);
+
+    if (m_startupState == Started)
+        m_session->handleTorrentResumed(this);
+    else if (m_startupState == Starting)
+        m_startupState = Started;
 }
 
 void TorrentHandle::handleSaveResumeDataAlert(const libtorrent::save_resume_data_alert *p)
@@ -1628,7 +1655,7 @@ void TorrentHandle::handleSaveResumeDataAlert(const libtorrent::save_resume_data
     resumeData["qBt-name"] = m_name.toStdString();
     resumeData["qBt-seedStatus"] = m_hasSeedStatus;
     resumeData["qBt-tempPathDisabled"] = m_tempPathDisabled;
-    resumeData["qBt-queuePosition"] = queuePosition();
+    resumeData["qBt-queuePosition"] = (nativeHandle().queue_position() + 1); // qBt starts queue at 1
     resumeData["qBt-hasRootFolder"] = m_hasRootFolder;
 
     m_session->handleTorrentResumeDataReady(this, resumeData);
@@ -1646,15 +1673,10 @@ void TorrentHandle::handleSaveResumeDataFailedAlert(const libtorrent::save_resum
 
 void TorrentHandle::handleFastResumeRejectedAlert(const libtorrent::fastresume_rejected_alert *p)
 {
-    qDebug("/!\\ Fast resume failed for %s, reason: %s", qUtf8Printable(name()), p->message().c_str());
-
-    updateStatus();
     if (p->error.value() == libt::errors::mismatching_file_size) {
         // Mismatching file size (files were probably moved)
-        LogMsg(tr("File sizes mismatch for torrent '%1', pausing it.").arg(name()), Log::CRITICAL);
         m_hasMissingFiles = true;
-        if (!isPaused())
-            pause();
+        LogMsg(tr("File sizes mismatch for torrent '%1', pausing it.").arg(name()), Log::CRITICAL);
     }
     else {
         LogMsg(tr("Fast resume data was rejected for torrent '%1'. Reason: %2. Checking again...")
@@ -1673,12 +1695,12 @@ void TorrentHandle::handleFileRenamedAlert(const libtorrent::file_renamed_alert
     // TODO: Check this!
     if (filesCount() > 1) {
         // Check if folders were renamed
-        QStringList oldPathParts = m_torrentInfo.origFilePath(p->index).split("/");
+        QStringList oldPathParts = m_torrentInfo.origFilePath(p->index).split('/');
         oldPathParts.removeLast();
-        QString oldPath = oldPathParts.join("/");
-        QStringList newPathParts = newName.split("/");
+        QString oldPath = oldPathParts.join('/');
+        QStringList newPathParts = newName.split('/');
         newPathParts.removeLast();
-        QString newPath = newPathParts.join("/");
+        QString newPath = newPathParts.join('/');
         if (!newPathParts.isEmpty() && (oldPath != newPath)) {
             qDebug("oldPath(%s) != newPath(%s)", qUtf8Printable(oldPath), qUtf8Printable(newPath));
             oldPath = QString("%1/%2").arg(savePath(true), oldPath);
@@ -1687,7 +1709,9 @@ void TorrentHandle::handleFileRenamedAlert(const libtorrent::file_renamed_alert
         }
     }
 
-    updateStatus();
+    // We don't really need to call updateStatus() in this place.
+    // All we need to do is make sure we have a valid instance of the TorrentInfo object.
+    m_torrentInfo = TorrentInfo {m_nativeHandle.torrent_file()};
 
     --m_renameCount;
     while (!isMoveInProgress() && (m_renameCount == 0) && !m_moveFinishedTriggers.isEmpty())
@@ -1705,7 +1729,9 @@ void TorrentHandle::handleFileRenameFailedAlert(const libtorrent::file_rename_fa
 
 void TorrentHandle::handleFileCompletedAlert(const libtorrent::file_completed_alert *p)
 {
-    updateStatus();
+    // We don't really need to call updateStatus() in this place.
+    // All we need to do is make sure we have a valid instance of the TorrentInfo object.
+    m_torrentInfo = TorrentInfo {m_nativeHandle.torrent_file()};
 
     qDebug("A file completed download in torrent \"%s\"", qUtf8Printable(name()));
     if (m_session->isAppendExtensionEnabled()) {
@@ -1806,6 +1832,9 @@ void TorrentHandle::handleAlert(libtorrent::alert *a)
     case libt::torrent_paused_alert::alert_type:
         handleTorrentPausedAlert(static_cast<libt::torrent_paused_alert*>(a));
         break;
+    case libt::torrent_resumed_alert::alert_type:
+        handleTorrentResumedAlert(static_cast<libt::torrent_resumed_alert*>(a));
+        break;
     case libt::tracker_error_alert::alert_type:
         handleTrackerErrorAlert(static_cast<libt::tracker_error_alert*>(a));
         break;
@@ -1831,7 +1860,7 @@ void TorrentHandle::manageIncompleteFiles()
 {
     const bool isAppendExtensionEnabled = m_session->isAppendExtensionEnabled();
     QVector<qreal> fp = filesProgress();
-    if( fp.size() != filesCount() ) {
+    if (fp.size() != filesCount()) {
         qDebug() << "skip manageIncompleteFiles because of invalid torrent meta-data or empty file-progress";
         return;
     }
@@ -1917,6 +1946,13 @@ void TorrentHandle::updateStatus(const libtorrent::torrent_status &nativeStatus)
 
     updateState();
     updateTorrentInfo();
+
+    // NOTE: Don't change the order of these conditionals!
+    // Otherwise it will not work properly since torrent can be CheckingDownloading.
+    if (isChecking())
+        m_unchecked = false;
+    else if (isDownloading())
+        m_unchecked = true;
 }
 
 void TorrentHandle::setRatioLimit(qreal limit)
@@ -1928,7 +1964,6 @@ void TorrentHandle::setRatioLimit(qreal limit)
 
     if (m_ratioLimit != limit) {
         m_ratioLimit = limit;
-        m_needSaveResumeData = true;
         m_session->handleTorrentShareLimitChanged(this);
     }
 }
@@ -1942,7 +1977,6 @@ void TorrentHandle::setSeedingTimeLimit(int limit)
 
     if (m_seedingTimeLimit != limit) {
         m_seedingTimeLimit = limit;
-        m_needSaveResumeData = true;
         m_session->handleTorrentShareLimitChanged(this);
     }
 }
@@ -1960,8 +1994,6 @@ void TorrentHandle::setDownloadLimit(int limit)
 void TorrentHandle::setSuperSeeding(bool enable)
 {
     m_nativeHandle.super_seeding(enable);
-    if (superSeeding() != enable)
-        updateStatus();
 }
 
 void TorrentHandle::flushCache()
@@ -1980,7 +2012,7 @@ void TorrentHandle::prioritizeFiles(const QVector<int> &priorities)
     if (priorities.size() != filesCount()) return;
 
     // Save first/last piece first option state
-    bool firstLastPieceFirst = hasFirstLastPiecePriority();
+    const bool firstLastPieceFirst = hasFirstLastPiecePriority();
 
     // Reset 'm_hasSeedStatus' if needed in order to react again to
     // 'torrent_finished_alert' and eg show tray notifications
@@ -2007,7 +2039,7 @@ void TorrentHandle::prioritizeFiles(const QVector<int> &priorities)
             // Make sure the file does not already exists
             if (QDir(parentAbsPath).dirName() != ".unwanted") {
                 QString unwantedAbsPath = parentAbsPath + "/.unwanted";
-                QString newAbsPath = unwantedAbsPath + "/" + Utils::Fs::fileName(filepath);
+                QString newAbsPath = unwantedAbsPath + '/' + Utils::Fs::fileName(filepath);
                 qDebug() << "Unwanted path is" << unwantedAbsPath;
                 if (QFile::exists(newAbsPath)) {
                     qWarning() << "File" << newAbsPath << "already exists at destination.";
@@ -2020,15 +2052,15 @@ void TorrentHandle::prioritizeFiles(const QVector<int> &priorities)
                 if (created) {
                     // Hide the folder on Windows
                     qDebug() << "Hiding folder (Windows)";
-                    std::wstring winPath =  Utils::Fs::toNativePath(unwantedAbsPath).toStdWString();
+                    std::wstring winPath = Utils::Fs::toNativePath(unwantedAbsPath).toStdWString();
                     DWORD dwAttrs = ::GetFileAttributesW(winPath.c_str());
                     bool ret = ::SetFileAttributesW(winPath.c_str(), dwAttrs | FILE_ATTRIBUTE_HIDDEN);
                     Q_ASSERT(ret != 0); Q_UNUSED(ret);
                 }
 #endif
                 QString parentPath = Utils::Fs::branchPath(filepath);
-                if (!parentPath.isEmpty() && !parentPath.endsWith("/"))
-                    parentPath += "/";
+                if (!parentPath.isEmpty() && !parentPath.endsWith('/'))
+                    parentPath += '/';
                 renameFile(i, parentPath + ".unwanted/" + Utils::Fs::fileName(filepath));
             }
         }
@@ -2045,22 +2077,20 @@ void TorrentHandle::prioritizeFiles(const QVector<int> &priorities)
                     renameFile(i, QDir(newRelPath).filePath(oldName));
 
                 // Remove .unwanted directory if empty
-                qDebug() << "Attempting to remove .unwanted folder at " << QDir(spath + "/" + newRelPath).absoluteFilePath(".unwanted");
-                QDir(spath + "/" + newRelPath).rmdir(".unwanted");
+                qDebug() << "Attempting to remove .unwanted folder at " << QDir(spath + '/' + newRelPath).absoluteFilePath(".unwanted");
+                QDir(spath + '/' + newRelPath).rmdir(".unwanted");
             }
         }
     }
 
     // Restore first/last piece first option if necessary
     if (firstLastPieceFirst)
-        setFirstLastPiecePriority(true);
-
-    updateStatus();
+        setFirstLastPiecePriorityImpl(true, priorities);
 }
 
 QVector<qreal> TorrentHandle::availableFileFractions() const
 {
-    const auto filesCount = this->filesCount();
+    const int filesCount = this->filesCount();
     if (filesCount < 0) return {};
 
     const QVector<int> piecesAvailability = pieceAvailability();
@@ -2069,12 +2099,13 @@ QVector<qreal> TorrentHandle::availableFileFractions() const
 
     QVector<qreal> res;
     res.reserve(filesCount);
-    TorrentInfo info = this->info();
-    for (int file = 0; file < filesCount; ++file) {
-        TorrentInfo::PieceRange filePieces = info.filePieces(file);
+    const TorrentInfo info = this->info();
+    for (int i = 0; i < filesCount; ++i) {
+        const TorrentInfo::PieceRange filePieces = info.filePieces(i);
+
         int availablePieces = 0;
         for (int piece = filePieces.first(); piece <= filePieces.last(); ++piece) {
-            availablePieces += piecesAvailability[piece] > 0 ? 1 : 0;
+            availablePieces += (piecesAvailability[piece] > 0) ? 1 : 0;
         }
         res.push_back(static_cast<qreal>(availablePieces) / filePieces.size());
     }

src/base/bittorrent/torrenthandle.h

@@ -88,10 +88,10 @@ namespace BitTorrent
     class TrackerEntry;
     struct AddTorrentParams;
 
-    struct AddTorrentData
+    struct CreateTorrentParams
     {
-        bool resumed;
-        // for both new and resumed torrents
+        bool restored; // is existing torrent job?
+        // for both new and restored torrents
         QString name;
         QString category;
         QSet<QString> tags;
@@ -102,18 +102,18 @@ namespace BitTorrent
         bool hasSeedStatus;
         bool skipChecking;
         bool hasRootFolder;
-        bool addForced;
-        bool addPaused;
+        bool forced;
+        bool paused;
         int uploadLimit;
         int downloadLimit;
         // for new torrents
         QVector<int> filePriorities;
-        // for resumed torrents
+        // for restored torrents
         qreal ratioLimit;
         int seedingTimeLimit;
 
-        AddTorrentData();
-        AddTorrentData(const AddTorrentParams &params);
+        CreateTorrentParams();
+        CreateTorrentParams(const AddTorrentParams &params);
     };
 
     struct TrackerInfo
@@ -158,6 +158,7 @@ namespace BitTorrent
     class TorrentHandle : public QObject
     {
         Q_DISABLE_COPY(TorrentHandle)
+        Q_DECLARE_TR_FUNCTIONS(BitTorrent::TorrentHandle)
 
     public:
         static const qreal USE_GLOBAL_RATIO;
@@ -170,7 +171,7 @@ namespace BitTorrent
         static const int MAX_SEEDING_TIME;
 
         TorrentHandle(Session *session, const libtorrent::torrent_handle &nativeHandle,
-                          const AddTorrentData &data);
+                          const CreateTorrentParams &params);
         ~TorrentHandle();
 
         bool isValid() const;
@@ -347,7 +348,6 @@ namespace BitTorrent
         void renameFile(int index, const QString &name);
         bool saveTorrentFile(const QString &path);
         void prioritizeFiles(const QVector<int> &priorities);
-        void setFilePriority(int index, int priority);
         void setRatioLimit(qreal limit);
         void setSeedingTimeLimit(int limit);
         void setUploadLimit(int limit);
@@ -355,7 +355,7 @@ namespace BitTorrent
         void setSuperSeeding(bool enable);
         void flushCache();
         void addTrackers(const QList<TrackerEntry> &trackers);
-        void replaceTrackers(QList<TrackerEntry> trackers);
+        void replaceTrackers(const QList<TrackerEntry> &trackers);
         void addUrlSeeds(const QList<QUrl> &urlSeeds);
         void removeUrlSeeds(const QList<QUrl> &urlSeeds);
         bool connectPeer(const PeerAddress &peerAddress);
@@ -372,7 +372,7 @@ namespace BitTorrent
         void handleTempPathChanged();
         void handleCategorySavePathChanged();
         void handleAppendExtensionToggled();
-        void saveResumeData(bool updateStatus = false);
+        void saveResumeData();
 
         /**
          * @brief fraction of file pieces that are available at least from one peer
@@ -420,6 +420,7 @@ namespace BitTorrent
         bool addTracker(const TrackerEntry &tracker);
         bool addUrlSeed(const QUrl &urlSeed);
         bool removeUrlSeed(const QUrl &urlSeed);
+        void setFirstLastPiecePriorityImpl(bool enabled, const QVector<int> &updatedFilePrio = {});
 
         Session *const m_session;
         libtorrent::torrent_handle m_nativeHandle;
@@ -459,10 +460,19 @@ namespace BitTorrent
         bool m_hasMissingFiles;
         bool m_hasRootFolder;
         bool m_needsToSetFirstLastPiecePriority;
+        bool m_needsToStartForced;
 
-        bool m_pauseAfterRecheck;
-        bool m_needSaveResumeData;
         QHash<QString, TrackerInfo> m_trackerInfos;
+
+        enum StartupState
+        {
+            NotStarted,
+            Starting,
+            Started
+        };
+
+        StartupState m_startupState = NotStarted;
+        bool m_unchecked = false;
     };
 }
 

src/base/bittorrent/torrentinfo.cpp

@@ -62,46 +62,6 @@ TorrentInfo &TorrentInfo::operator=(const TorrentInfo &other)
 
 TorrentInfo TorrentInfo::load(const QByteArray &data, QString *error) noexcept
 {
-    libt::error_code ec;
-    TorrentInfo info(NativePtr(new libt::torrent_info(data.constData(), data.size(), ec)));
-    if (error) {
-        if (ec)
-            *error = QString::fromStdString(ec.message());
-        else
-            error->clear();
-    }
-
-    return info;
-}
-
-TorrentInfo TorrentInfo::loadFromFile(const QString &path, QString *error) noexcept
-{
-    if (error)
-        error->clear();
-
-    QFile file {path};
-    if (!file.open(QIODevice::ReadOnly)) {
-        if (error)
-            *error = file.errorString();
-        return TorrentInfo();
-    }
-
-    const qint64 fileSizeLimit = 100 * 1024 * 1024;  // 100 MB
-    if (file.size() > fileSizeLimit) {
-        if (error)
-            *error = tr("File size exceeds max limit %1").arg(fileSizeLimit);
-        return TorrentInfo();
-    }
-
-    const QByteArray data = file.read(fileSizeLimit);
-    if (data.size() != file.size()) {
-        if (error)
-            *error = tr("Torrent file read error");
-        return TorrentInfo();
-    }
-
-    file.close();
-
     // 2-step construction to overcome default limits of `depth_limit` & `token_limit` which are
     // used in `torrent_info()` constructor
     const int depthLimit = 100;
@@ -133,6 +93,45 @@ TorrentInfo TorrentInfo::loadFromFile(const QString &path, QString *error) noexc
     return info;
 }
 
+TorrentInfo TorrentInfo::loadFromFile(const QString &path, QString *error) noexcept
+{
+    if (error)
+        error->clear();
+
+    QFile file {path};
+    if (!file.open(QIODevice::ReadOnly)) {
+        if (error)
+            *error = file.errorString();
+        return TorrentInfo();
+    }
+
+    const qint64 fileSizeLimit = 100 * 1024 * 1024;  // 100 MB
+    if (file.size() > fileSizeLimit) {
+        if (error)
+            *error = tr("File size exceeds max limit %1").arg(fileSizeLimit);
+        return TorrentInfo();
+    }
+
+    QByteArray data;
+    try {
+        data = file.readAll();
+    }
+    catch (const std::bad_alloc &e) {
+        if (error)
+            *error = tr("Torrent file read error: %1").arg(e.what());
+        return TorrentInfo();
+    }
+    if (data.size() != file.size()) {
+        if (error)
+            *error = tr("Torrent file read error: size mismatch");
+        return TorrentInfo();
+    }
+
+    file.close();
+
+    return load(data, error);
+}
+
 bool TorrentInfo::isValid() const
 {
     return (m_nativeInfo && m_nativeInfo->is_valid() && (m_nativeInfo->num_files() > 0));
@@ -248,7 +247,7 @@ QList<TrackerEntry> TorrentInfo::trackers() const
     if (!isValid()) return QList<TrackerEntry>();
 
     QList<TrackerEntry> trackers;
-    foreach (const libt::announce_entry &tracker, m_nativeInfo->trackers())
+    for (const libt::announce_entry &tracker : m_nativeInfo->trackers())
         trackers.append(tracker);
 
     return trackers;
@@ -259,7 +258,7 @@ QList<QUrl> TorrentInfo::urlSeeds() const
     if (!isValid()) return QList<QUrl>();
 
     QList<QUrl> urlSeeds;
-    foreach (const libt::web_seed_entry &webSeed, m_nativeInfo->web_seeds())
+    for (const libt::web_seed_entry &webSeed : m_nativeInfo->web_seeds())
         if (webSeed.type == libt::web_seed_entry::url_seed)
             urlSeeds.append(QUrl(webSeed.url.c_str()));
 
@@ -340,18 +339,18 @@ TorrentInfo::PieceRange TorrentInfo::filePieces(int fileIndex) const
 
     const libt::file_storage &files = nativeInfo()->files();
     const auto fileSize = files.file_size(fileIndex);
-    const auto firstOffset = files.file_offset(fileIndex);
-    return makeInterval(static_cast<int>(firstOffset / pieceLength()),
-                        static_cast<int>((firstOffset + fileSize - 1) / pieceLength()));
+    const auto fileOffset = files.file_offset(fileIndex);
+    return makeInterval(static_cast<int>(fileOffset / pieceLength()),
+                        static_cast<int>((fileOffset + fileSize - 1) / pieceLength()));
 }
 
-void TorrentInfo::renameFile(uint index, const QString &newPath)
+void TorrentInfo::renameFile(const int index, const QString &newPath)
 {
     if (!isValid()) return;
     nativeInfo()->rename_file(index, Utils::Fs::toNativePath(newPath).toStdString());
 }
 
-int BitTorrent::TorrentInfo::fileIndex(const QString& fileName) const
+int BitTorrent::TorrentInfo::fileIndex(const QString &fileName) const
 {
     // the check whether the object is valid is not needed here
     // because if filesCount() returns -1 the loop exits immediately

src/base/bittorrent/torrentinfo.h

@@ -102,7 +102,7 @@ namespace BitTorrent
         PieceRange filePieces(const QString &file) const;
         PieceRange filePieces(int fileIndex) const;
 
-        void renameFile(uint index, const QString &newPath);
+        void renameFile(int index, const QString &newPath);
 
         QString rootFolder() const;
         bool hasRootFolder() const;

src/base/bittorrent/tracker.cpp

@@ -60,7 +60,7 @@ bool Peer::operator==(const Peer &other) const
 
 QString Peer::uid() const
 {
-    return ip + ":" + QString::number(port);
+    return ip.toString() + ':' + QString::number(port);
 }
 
 libtorrent::entry Peer::toEntry(bool noPeerId) const
@@ -68,7 +68,7 @@ libtorrent::entry Peer::toEntry(bool noPeerId) const
     libtorrent::entry::dictionary_type peerMap;
     if (!noPeerId)
         peerMap["id"] = libtorrent::entry(peerId.toStdString());
-    peerMap["ip"] = libtorrent::entry(ip.toStdString());
+    peerMap["ip"] = libtorrent::entry(ip.toString().toStdString());
     peerMap["port"] = libtorrent::entry(port);
 
     return libtorrent::entry(peerMap);
@@ -136,7 +136,7 @@ void Tracker::respondToAnnounceRequest()
     QMap<QString, QByteArray> queryParams;
     // Parse GET parameters
     using namespace Utils::ByteArray;
-    for (const QByteArray &param : copyAsConst(splitToViews(m_request.query, "&"))) {
+    for (const QByteArray &param : asConst(splitToViews(m_request.query, "&"))) {
         const int sepPos = param.indexOf('=');
         if (sepPos <= 0) continue; // ignores params without name
 
@@ -145,10 +145,12 @@ void Tracker::respondToAnnounceRequest()
         queryParams[paramName] = paramValue;
     }
 
-    TrackerAnnounceRequest annonceReq;
+    TrackerAnnounceRequest announceReq;
 
     // IP
-    annonceReq.peer.ip = m_env.clientAddress.toString();
+    // Use the "ip" parameter provided from tracker request first, then fall back to client IP if invalid
+    const QHostAddress paramIP {QString::fromLatin1(queryParams.value("ip"))};
+    announceReq.peer.ip = paramIP.isNull() ? m_env.clientAddress : paramIP;
 
     // 1. Get info_hash
     if (!queryParams.contains("info_hash")) {
@@ -156,7 +158,7 @@ void Tracker::respondToAnnounceRequest()
         status(101, "Missing info_hash");
         return;
     }
-    annonceReq.infoHash = queryParams.value("info_hash");
+    announceReq.infoHash = queryParams.value("info_hash");
     // info_hash cannot be longer than 20 bytes
     /*if (annonce_req.info_hash.toLatin1().length() > 20) {
         qDebug("Tracker: Info_hash is not 20 byte long: %s (%d)", qUtf8Printable(annonce_req.info_hash), annonce_req.info_hash.toLatin1().length());
@@ -170,7 +172,7 @@ void Tracker::respondToAnnounceRequest()
         status(102, "Missing peer_id");
         return;
     }
-    annonceReq.peer.peerId = queryParams.value("peer_id");
+    announceReq.peer.peerId = queryParams.value("peer_id");
     // peer_id cannot be longer than 20 bytes
     /*if (annonce_req.peer.peer_id.length() > 20) {
         qDebug("Tracker: peer_id is not 20 byte long: %s", qUtf8Printable(annonce_req.peer.peer_id));
@@ -185,52 +187,52 @@ void Tracker::respondToAnnounceRequest()
         return;
     }
     bool ok = false;
-    annonceReq.peer.port = queryParams.value("port").toInt(&ok);
-    if (!ok || (annonceReq.peer.port < 0) || (annonceReq.peer.port > 65535)) {
-        qDebug("Tracker: Invalid port number (%d)", annonceReq.peer.port);
+    announceReq.peer.port = queryParams.value("port").toInt(&ok);
+    if (!ok || (announceReq.peer.port < 0) || (announceReq.peer.port > 65535)) {
+        qDebug("Tracker: Invalid port number (%d)", announceReq.peer.port);
         status(103, "Missing port");
         return;
     }
 
     // 4.  Get event
-    annonceReq.event = "";
+    announceReq.event = "";
     if (queryParams.contains("event")) {
-        annonceReq.event = queryParams.value("event");
-        qDebug("Tracker: event is %s", qUtf8Printable(annonceReq.event));
+        announceReq.event = queryParams.value("event");
+        qDebug("Tracker: event is %s", qUtf8Printable(announceReq.event));
     }
 
     // 5. Get numwant
-    annonceReq.numwant = 50;
+    announceReq.numwant = 50;
     if (queryParams.contains("numwant")) {
         int tmp = queryParams.value("numwant").toInt();
         if (tmp > 0) {
             qDebug("Tracker: numwant = %d", tmp);
-            annonceReq.numwant = tmp;
+            announceReq.numwant = tmp;
         }
     }
 
     // 6. no_peer_id (extension)
-    annonceReq.noPeerId = false;
+    announceReq.noPeerId = false;
     if (queryParams.contains("no_peer_id"))
-        annonceReq.noPeerId = true;
+        announceReq.noPeerId = true;
 
     // 7. TODO: support "compact" extension
 
     // Done parsing, now let's reply
-    if (annonceReq.event == "stopped") {
-        unregisterPeer(annonceReq);
+    if (announceReq.event == "stopped") {
+        unregisterPeer(announceReq);
     }
     else {
-        registerPeer(annonceReq);
-        replyWithPeerList(annonceReq);
+        registerPeer(announceReq);
+        replyWithPeerList(announceReq);
     }
 }
 
-void Tracker::registerPeer(const TrackerAnnounceRequest &annonceReq)
+void Tracker::registerPeer(const TrackerAnnounceRequest &announceReq)
 {
-    if (annonceReq.peer.port == 0) return;
+    if (announceReq.peer.port == 0) return;
 
-    if (!m_torrents.contains(annonceReq.infoHash)) {
+    if (!m_torrents.contains(announceReq.infoHash)) {
         // Unknown torrent
         if (m_torrents.size() == MAX_TORRENTS) {
             // Reached max size, remove a random torrent
@@ -239,34 +241,34 @@ void Tracker::registerPeer(const TrackerAnnounceRequest &annonceReq)
     }
 
     // Register the user
-    PeerList &peers = m_torrents[annonceReq.infoHash];
-    if (!peers.contains(annonceReq.peer.uid())) {
+    PeerList &peers = m_torrents[announceReq.infoHash];
+    if (!peers.contains(announceReq.peer.uid())) {
         // Unknown peer
         if (peers.size() == MAX_PEERS_PER_TORRENT) {
             // Too many peers, remove a random one
             peers.erase(peers.begin());
         }
     }
-    peers[annonceReq.peer.uid()] = annonceReq.peer;
+    peers[announceReq.peer.uid()] = announceReq.peer;
 }
 
-void Tracker::unregisterPeer(const TrackerAnnounceRequest &annonceReq)
+void Tracker::unregisterPeer(const TrackerAnnounceRequest &announceReq)
 {
-    if (annonceReq.peer.port == 0) return;
+    if (announceReq.peer.port == 0) return;
 
-    if (m_torrents[annonceReq.infoHash].remove(annonceReq.peer.uid()) > 0)
+    if (m_torrents[announceReq.infoHash].remove(announceReq.peer.uid()) > 0)
         qDebug("Tracker: Peer stopped downloading, deleting it from the list");
 }
 
-void Tracker::replyWithPeerList(const TrackerAnnounceRequest &annonceReq)
+void Tracker::replyWithPeerList(const TrackerAnnounceRequest &announceReq)
 {
     // Prepare the entry for bencoding
     libtorrent::entry::dictionary_type replyDict;
     replyDict["interval"] = libtorrent::entry(ANNOUNCE_INTERVAL);
 
     libtorrent::entry::list_type peerList;
-    for (const Peer &p : m_torrents.value(annonceReq.infoHash))
-        peerList.push_back(p.toEntry(annonceReq.noPeerId));
+    for (const Peer &p : m_torrents.value(announceReq.infoHash))
+        peerList.push_back(p.toEntry(announceReq.noPeerId));
     replyDict["peers"] = libtorrent::entry(peerList);
 
     const libtorrent::entry replyEntry(replyDict);

src/base/bittorrent/tracker.h

@@ -32,6 +32,7 @@
 
 #include <QHash>
 #include <QObject>
+#include <QHostAddress>
 
 #include "base/http/irequesthandler.h"
 #include "base/http/responsebuilder.h"
@@ -51,7 +52,7 @@ namespace BitTorrent
 {
     struct Peer
     {
-        QString ip;
+        QHostAddress ip;
         QByteArray peerId;
         int port;
 
@@ -90,9 +91,9 @@ namespace BitTorrent
 
     private:
         void respondToAnnounceRequest();
-        void registerPeer(const TrackerAnnounceRequest &annonceReq);
-        void unregisterPeer(const TrackerAnnounceRequest &annonceReq);
-        void replyWithPeerList(const TrackerAnnounceRequest &annonceReq);
+        void registerPeer(const TrackerAnnounceRequest &announceReq);
+        void unregisterPeer(const TrackerAnnounceRequest &announceReq);
+        void replyWithPeerList(const TrackerAnnounceRequest &announceReq);
 
         Http::Server *m_server;
         TorrentList m_torrents;

src/base/bittorrent/trackerentry.cpp

@@ -26,11 +26,12 @@
  * exception statement from your version.
  */
 
+#include "trackerentry.h"
+
 #include <QString>
 
 #include "base/utils/misc.h"
 #include "base/utils/string.h"
-#include "trackerentry.h"
 
 using namespace BitTorrent;
 

src/base/bittorrent/trackerentry.h

@@ -44,10 +44,10 @@ namespace BitTorrent
     public:
         enum Status
         {
-            NotContacted,
-            Working,
-            Updating,
-            NotWorking
+            NotContacted = 1,
+            Working = 2,
+            Updating = 3,
+            NotWorking = 4
         };
 
         TrackerEntry(const QString &url);

src/base/exceptions.cpp

@@ -30,11 +30,10 @@
 
 RuntimeError::RuntimeError(const QString &message)
     : std::runtime_error {message.toUtf8().data()}
-    , m_message {message}
 {
 }
 
 QString RuntimeError::message() const
 {
-    return m_message;
+    return what();
 }

src/base/exceptions.h

@@ -36,7 +36,4 @@ class RuntimeError : public std::runtime_error
 public:
     explicit RuntimeError(const QString &message = "");
     QString message() const;
-
-private:
-    const QString m_message;
 };

src/base/filesystemwatcher.cpp

@@ -30,7 +30,7 @@
 
 #include <QtGlobal>
 
-#if defined(Q_OS_MAC) || defined(Q_OS_FREEBSD)
+#if defined(Q_OS_MAC) || defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
 #include <cstring>
 #include <sys/mount.h>
 #include <sys/param.h>
@@ -40,6 +40,7 @@
 #include "base/bittorrent/magneturi.h"
 #include "base/bittorrent/torrentinfo.h"
 #include "base/global.h"
+#include "base/logger.h"
 #include "base/preferences.h"
 #include "base/utils/fs.h"
 
@@ -57,18 +58,14 @@ FileSystemWatcher::FileSystemWatcher(QObject *parent)
     m_partialTorrentTimer.setSingleShot(true);
     connect(&m_partialTorrentTimer, &QTimer::timeout, this, &FileSystemWatcher::processPartialTorrents);
 
-#ifndef Q_OS_WIN
     connect(&m_watchTimer, &QTimer::timeout, this, &FileSystemWatcher::scanNetworkFolders);
-#endif
 }
 
 QStringList FileSystemWatcher::directories() const
 {
     QStringList dirs = QFileSystemWatcher::directories();
-#ifndef Q_OS_WIN
-    for (const QDir &dir : qAsConst(m_watchedFolders))
+    for (const QDir &dir : asConst(m_watchedFolders))
         dirs << dir.canonicalPath();
-#endif
     return dirs;
 }
 
@@ -76,15 +73,14 @@ void FileSystemWatcher::addPath(const QString &path)
 {
     if (path.isEmpty()) return;
 
-#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
+#if !defined Q_OS_HAIKU
     const QDir dir(path);
     if (!dir.exists()) return;
 
     // Check if the path points to a network file system or not
     if (Utils::Fs::isNetworkFileSystem(path)) {
         // Network mode
-        qDebug("Network folder detected: %s", qUtf8Printable(path));
-        qDebug("Using file polling mode instead of inotify...");
+        LogMsg(tr("Watching remote folder: \"%1\"").arg(Utils::Fs::toNativePath(path)));
         m_watchedFolders << dir;
 
         m_watchTimer.start(WATCH_INTERVAL);
@@ -93,20 +89,19 @@ void FileSystemWatcher::addPath(const QString &path)
 #endif
 
     // Normal mode
-    qDebug("FS Watcher is watching %s in normal mode", qUtf8Printable(path));
+    LogMsg(tr("Watching local folder: \"%1\"").arg(Utils::Fs::toNativePath(path)));
     QFileSystemWatcher::addPath(path);
     scanLocalFolder(path);
 }
 
 void FileSystemWatcher::removePath(const QString &path)
 {
-#ifndef Q_OS_WIN
     if (m_watchedFolders.removeOne(path)) {
         if (m_watchedFolders.isEmpty())
             m_watchTimer.stop();
         return;
     }
-#endif
+
     // Normal mode
     QFileSystemWatcher::removePath(path);
 }
@@ -116,13 +111,11 @@ void FileSystemWatcher::scanLocalFolder(const QString &path)
     QTimer::singleShot(2000, this, [this, path]() { processTorrentsInDir(path); });
 }
 
-#ifndef Q_OS_WIN
 void FileSystemWatcher::scanNetworkFolders()
 {
-    for (const QDir &dir : qAsConst(m_watchedFolders))
+    for (const QDir &dir : asConst(m_watchedFolders))
         processTorrentsInDir(dir);
 }
-#endif
 
 void FileSystemWatcher::processPartialTorrents()
 {

src/base/filesystemwatcher.h

@@ -56,9 +56,7 @@ signals:
 protected slots:
     void scanLocalFolder(const QString &path);
     void processPartialTorrents();
-#ifndef Q_OS_WIN
     void scanNetworkFolders();
-#endif
 
 private:
     void processTorrentsInDir(const QDir &dir);
@@ -67,10 +65,8 @@ private:
     QHash<QString, int> m_partialTorrents;
     QTimer m_partialTorrentTimer;
 
-#ifndef Q_OS_WIN
     QList<QDir> m_watchedFolders;
     QTimer m_watchTimer;
-#endif
 };
 
 #endif // FILESYSTEMWATCHER_H

src/base/global.h

@@ -33,16 +33,13 @@
 
 const char C_TORRENT_FILE_EXTENSION[] = ".torrent";
 
-
-#if QT_VERSION < QT_VERSION_CHECK(5, 7, 0)
 template <typename T>
-constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t; }
+constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; }
 
-// prevent rvalue arguments:
+// Forward rvalue as const
 template <typename T>
-void qAsConst(const T &&) = delete;
-#endif
+constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); }
 
-// returns a const object copy
+// Prevent const rvalue arguments
 template <typename T>
-constexpr typename std::add_const<T>::type copyAsConst(T &&t) noexcept { return std::move(t); }
+void asConst(const T &&) = delete;

src/base/http/connection.cpp

@@ -30,7 +30,6 @@
 
 #include "connection.h"
 
-#include <QRegExp>
 #include <QTcpSocket>
 
 #include "base/logger.h"
@@ -134,7 +133,7 @@ bool Connection::acceptsGzipEncoding(QString codings)
 
     const auto isCodingAvailable = [](const QStringList &list, const QString &encoding) -> bool
     {
-        foreach (const QString &str, list) {
+        for (const QString &str : list) {
             if (!str.startsWith(encoding))
                 continue;
 

src/base/http/server.cpp

@@ -146,9 +146,9 @@ QList<QSslCipher> Server::safeCipherList() const
     const QStringList badCiphers = {"idea", "rc4"};
     const QList<QSslCipher> allCiphers = QSslSocket::supportedCiphers();
     QList<QSslCipher> safeCiphers;
-    foreach (const QSslCipher &cipher, allCiphers) {
+    for (const QSslCipher &cipher : allCiphers) {
         bool isSafe = true;
-        foreach (const QString &badCipher, badCiphers) {
+        for (const QString &badCipher : badCiphers) {
             if (cipher.name().contains(badCipher, Qt::CaseInsensitive)) {
                 isSafe = false;
                 break;

src/base/http/types.h

@@ -52,6 +52,7 @@ namespace Http
     const char HEADER_HOST[] = "host";
     const char HEADER_ORIGIN[] = "origin";
     const char HEADER_REFERER[] = "referer";
+    const char HEADER_REFERRER_POLICY[] = "referrer-policy";
     const char HEADER_SET_COOKIE[] = "set-cookie";
     const char HEADER_X_CONTENT_TYPE_OPTIONS[] = "x-content-type-options";
     const char HEADER_X_FORWARDED_HOST[] = "x-forwarded-host";
@@ -63,10 +64,12 @@ namespace Http
     const char HEADER_REQUEST_METHOD_POST[] = "POST";
 
     const char CONTENT_TYPE_HTML[] = "text/html";
+    const char CONTENT_TYPE_CSS[] = "text/css";
+    const char CONTENT_TYPE_TXT[] = "text/plain";
+    const char CONTENT_TYPE_JS[] = "application/javascript";
     const char CONTENT_TYPE_JSON[] = "application/json";
     const char CONTENT_TYPE_GIF[] = "image/gif";
     const char CONTENT_TYPE_PNG[] = "image/png";
-    const char CONTENT_TYPE_TXT[] = "text/plain";
     const char CONTENT_TYPE_FORM_ENCODED[] = "application/x-www-form-urlencoded";
     const char CONTENT_TYPE_FORM_DATA[] = "multipart/form-data";
 
@@ -105,7 +108,7 @@ namespace Http
         uint code;
         QString text;
 
-        ResponseStatus(uint code = 200, const QString& text = "OK"): code(code), text(text) {}
+        ResponseStatus(uint code = 200, const QString &text = "OK"): code(code), text(text) {}
     };
 
     struct Response
@@ -114,7 +117,7 @@ namespace Http
         QStringMap headers;
         QByteArray content;
 
-        Response(uint code = 200, const QString& text = "OK"): status(code, text) {}
+        Response(uint code = 200, const QString &text = "OK"): status(code, text) {}
     };
 }
 

src/base/iconprovider.cpp

@@ -27,9 +27,10 @@
  * exception statement from your version.
  */
 
-#include <QString>
 #include "iconprovider.h"
 
+#include <QFileInfo>
+
 IconProvider::IconProvider(QObject *parent)
     : QObject(parent)
 {
@@ -56,9 +57,15 @@ IconProvider *IconProvider::instance()
     return m_instance;
 }
 
-QString IconProvider::getIconPath(const QString &iconId)
+QString IconProvider::getIconPath(const QString &iconId) const
 {
-    return ":/icons/qbt-theme/" + iconId + ".png";
+    // there are a few icons not available in svg
+    const QString pathSvg = ":/icons/qbt-theme/" + iconId + ".svg";
+    if (QFileInfo::exists(pathSvg))
+        return pathSvg;
+
+    const QString pathPng = ":/icons/qbt-theme/" + iconId + ".png";
+    return pathPng;
 }
 
 IconProvider *IconProvider::m_instance = nullptr;

src/base/iconprovider.h

@@ -31,8 +31,7 @@
 #define ICONPROVIDER_H
 
 #include <QObject>
-
-class QString;
+#include <QString>
 
 class IconProvider : public QObject
 {
@@ -43,7 +42,7 @@ public:
     static void freeInstance();
     static IconProvider *instance();
 
-    virtual QString getIconPath(const QString &iconId);
+    virtual QString getIconPath(const QString &iconId) const;
 
 protected:
     explicit IconProvider(QObject *parent = nullptr);

src/base/indexrange.h

@@ -38,30 +38,30 @@ class IndexInterval
 public:
     using IndexType = Index;
 
-    IndexInterval(IndexType first, IndexType last)
+    IndexInterval(IndexType first, IndexType last)  // add constexpr when using C++14
         : m_first {first}
         , m_last {last}
     {
         Q_ASSERT(first <= last);
     }
 
-    IndexType first() const
+    constexpr IndexType first() const
     {
         return m_first;
     }
 
-    IndexType last() const
+    constexpr IndexType last() const
     {
         return m_last;
     }
 
 private:
-    IndexType m_first;
-    IndexType m_last;
+    const IndexType m_first;
+    const IndexType m_last;
 };
 
 template <typename T>
-inline IndexInterval<T> makeInterval(T first, T last)
+constexpr IndexInterval<T> makeInterval(T first, T last)
 {
     return {first, last};
 }
@@ -99,7 +99,7 @@ public:
 
     constexpr IndexType end() const
     {
-        return m_first + m_size;
+        return (m_first + m_size);
     }
 
     constexpr IndexDiffType size() const
@@ -114,12 +114,12 @@ public:
 
     constexpr IndexType last() const
     {
-        return m_first + m_size - 1;
+        return (m_first + m_size - 1);
     }
 
     constexpr bool isEmpty() const
     {
-        return m_size == 0;
+        return (m_size == 0);
     }
 
 private:

src/base/net/dnsupdater.cpp

@@ -26,15 +26,15 @@
  * exception statement from your version.
  */
 
+#include "dnsupdater.h"
+
 #include <QDebug>
-#include <QRegExp>
-#include <QStringList>
+#include <QRegularExpression>
 #include <QUrlQuery>
 
 #include "base/logger.h"
 #include "base/net/downloadhandler.h"
 #include "base/net/downloadmanager.h"
-#include "dnsupdater.h"
 
 using namespace Net;
 
@@ -74,9 +74,8 @@ void DNSUpdater::checkPublicIP()
 {
     Q_ASSERT(m_state == OK);
 
-    DownloadHandler *handler = DownloadManager::instance()->downloadUrl(
-                "http://checkip.dyndns.org", false, 0, false,
-                "qBittorrent/" QBT_VERSION_2);
+    DownloadHandler *handler = DownloadManager::instance()->download(
+                DownloadRequest("http://checkip.dyndns.org").userAgent("qBittorrent/" QBT_VERSION_2));
     connect(handler, static_cast<void (Net::DownloadHandler::*)(const QString &, const QByteArray &)>(&Net::DownloadHandler::downloadFinished)
             , this, &DNSUpdater::ipRequestFinished);
     connect(handler, &Net::DownloadHandler::downloadFailed, this, &DNSUpdater::ipRequestFailed);
@@ -89,9 +88,9 @@ void DNSUpdater::ipRequestFinished(const QString &url, const QByteArray &data)
     Q_UNUSED(url);
 
     // Parse response
-    QRegExp ipregex("Current IP Address:\\s+([^<]+)</body>");
-    if (ipregex.indexIn(data) >= 0) {
-        QString ipStr = ipregex.cap(1);
+    const QRegularExpressionMatch ipRegexMatch = QRegularExpression("Current IP Address:\\s+([^<]+)</body>").match(data);
+    if (ipRegexMatch.hasMatch()) {
+        QString ipStr = ipRegexMatch.captured(1);
         qDebug() << Q_FUNC_INFO << "Regular expression captured the following IP:" << ipStr;
         QHostAddress newIp(ipStr);
         if (!newIp.isNull()) {
@@ -122,9 +121,8 @@ void DNSUpdater::updateDNSService()
     qDebug() << Q_FUNC_INFO;
 
     m_lastIPCheckTime = QDateTime::currentDateTime();
-    DownloadHandler *handler = DownloadManager::instance()->downloadUrl(
-                getUpdateUrl(), false, 0, false,
-                "qBittorrent/" QBT_VERSION_2);
+    DownloadHandler *handler = DownloadManager::instance()->download(
+                DownloadRequest(getUpdateUrl()).userAgent("qBittorrent/" QBT_VERSION_2));
     connect(handler, static_cast<void (Net::DownloadHandler::*)(const QString &, const QByteArray &)>(&Net::DownloadHandler::downloadFinished)
             , this, &DNSUpdater::ipUpdateFinished);
     connect(handler, &Net::DownloadHandler::downloadFailed, this, &DNSUpdater::ipUpdateFailed);
@@ -183,7 +181,7 @@ void DNSUpdater::processIPUpdateReply(const QString &reply)
 {
     Logger *const logger = Logger::instance();
     qDebug() << Q_FUNC_INFO << reply;
-    QString code = reply.split(" ").first();
+    QString code = reply.split(' ').first();
     qDebug() << Q_FUNC_INFO << "Code:" << code;
 
     if ((code == "good") || (code == "nochg")) {
@@ -246,8 +244,8 @@ void DNSUpdater::updateCredentials()
     }
     if (m_domain != pref->getDynDomainName()) {
         m_domain = pref->getDynDomainName();
-        QRegExp domain_regex("^(?:(?!\\d|-)[a-zA-Z0-9\\-]{1,63}\\.)+[a-zA-Z]{2,}$");
-        if (domain_regex.indexIn(m_domain) < 0) {
+        const QRegularExpressionMatch domainRegexMatch = QRegularExpression("^(?:(?!\\d|-)[a-zA-Z0-9\\-]{1,63}\\.)+[a-zA-Z]{2,}$").match(m_domain);
+        if (!domainRegexMatch.hasMatch()) {
             logger->addMessage(tr("Dynamic DNS error: supplied domain name is invalid."), Log::CRITICAL);
             m_lastIP.clear();
             m_ipCheckTimer.stop();

src/base/net/downloadhandler.cpp

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -29,11 +29,11 @@
 
 #include "downloadhandler.h"
 
+#include <QCoreApplication>
 #include <QDebug>
 #include <QNetworkAccessManager>
 #include <QNetworkCookie>
 #include <QNetworkProxy>
-#include <QNetworkReply>
 #include <QNetworkRequest>
 #include <QTemporaryFile>
 #include <QUrl>
@@ -43,35 +43,57 @@
 #include "base/utils/misc.h"
 #include "downloadmanager.h"
 
-static QString errorCodeToString(QNetworkReply::NetworkError status);
+namespace
+{
+    bool saveToFile(const QByteArray &replyData, QString &filePath)
+    {
+        QTemporaryFile tmpfile {Utils::Fs::tempPath() + "XXXXXX"};
+        tmpfile.setAutoRemove(false);
 
-using namespace Net;
+        if (!tmpfile.open())
+            return false;
 
-DownloadHandler::DownloadHandler(QNetworkReply *reply, DownloadManager *manager, bool saveToFile, qint64 limit, bool handleRedirectToMagnet)
+        filePath = tmpfile.fileName();
+
+        tmpfile.write(replyData);
+        return true;
+    }
+}
+
+Net::DownloadHandler::DownloadHandler(QNetworkReply *reply, DownloadManager *manager, const DownloadRequest &downloadRequest)
     : QObject(manager)
     , m_reply(reply)
     , m_manager(manager)
-    , m_saveToFile(saveToFile)
-    , m_sizeLimit(limit)
-    , m_handleRedirectToMagnet(handleRedirectToMagnet)
-    , m_url(reply->url().toString())
+    , m_downloadRequest(downloadRequest)
 {
-    init();
+    if (reply)
+        assignNetworkReply(reply);
 }
 
-DownloadHandler::~DownloadHandler()
+Net::DownloadHandler::~DownloadHandler()
 {
     if (m_reply)
         delete m_reply;
 }
 
-// Returns original url
-QString DownloadHandler::url() const
+void Net::DownloadHandler::assignNetworkReply(QNetworkReply *reply)
 {
-    return m_url;
+    Q_ASSERT(reply);
+
+    m_reply = reply;
+    m_reply->setParent(this);
+    if (m_downloadRequest.limit() > 0)
+        connect(m_reply, &QNetworkReply::downloadProgress, this, &Net::DownloadHandler::checkDownloadSize);
+    connect(m_reply, &QNetworkReply::finished, this, &Net::DownloadHandler::processFinishedDownload);
 }
 
-void DownloadHandler::processFinishedDownload()
+// Returns original url
+QString Net::DownloadHandler::url() const
+{
+    return m_downloadRequest.url();
+}
+
+void Net::DownloadHandler::processFinishedDownload()
 {
     QString url = m_reply->url().toString();
     qDebug("Download finished: %s", qUtf8Printable(url));
@@ -79,7 +101,7 @@ void DownloadHandler::processFinishedDownload()
     if (m_reply->error() != QNetworkReply::NoError) {
         // Failure
         qDebug("Download failure (%s), reason: %s", qUtf8Printable(url), qUtf8Printable(errorCodeToString(m_reply->error())));
-        emit downloadFailed(m_url, errorCodeToString(m_reply->error()));
+        emit downloadFailed(m_downloadRequest.url(), errorCodeToString(m_reply->error()));
         this->deleteLater();
     }
     else {
@@ -97,15 +119,15 @@ void DownloadHandler::processFinishedDownload()
                 replyData = Utils::Gzip::decompress(replyData);
             }
 
-            if (m_saveToFile) {
+            if (m_downloadRequest.saveToFile()) {
                 QString filePath;
                 if (saveToFile(replyData, filePath))
-                    emit downloadFinished(m_url, filePath);
+                    emit downloadFinished(m_downloadRequest.url(), filePath);
                 else
-                    emit downloadFailed(m_url, tr("I/O Error"));
-                }
+                    emit downloadFailed(m_downloadRequest.url(), tr("I/O Error"));
+            }
             else {
-                emit downloadFinished(m_url, replyData);
+                emit downloadFinished(m_downloadRequest.url(), replyData);
             }
 
             this->deleteLater();
@@ -113,137 +135,116 @@ void DownloadHandler::processFinishedDownload()
     }
 }
 
-void DownloadHandler::checkDownloadSize(qint64 bytesReceived, qint64 bytesTotal)
+void Net::DownloadHandler::checkDownloadSize(qint64 bytesReceived, qint64 bytesTotal)
 {
     QString msg = tr("The file size is %1. It exceeds the download limit of %2.");
 
     if (bytesTotal > 0) {
         // Total number of bytes is available
-        if (bytesTotal > m_sizeLimit) {
+        if (bytesTotal > m_downloadRequest.limit()) {
             m_reply->abort();
-            emit downloadFailed(m_url, msg.arg(Utils::Misc::friendlyUnit(bytesTotal), Utils::Misc::friendlyUnit(m_sizeLimit)));
+            emit downloadFailed(m_downloadRequest.url(), msg.arg(Utils::Misc::friendlyUnit(bytesTotal), Utils::Misc::friendlyUnit(m_downloadRequest.limit())));
         }
         else {
             disconnect(m_reply, &QNetworkReply::downloadProgress, this, &Net::DownloadHandler::checkDownloadSize);
         }
     }
-    else if (bytesReceived  > m_sizeLimit) {
+    else if (bytesReceived > m_downloadRequest.limit()) {
         m_reply->abort();
-        emit downloadFailed(m_url, msg.arg(Utils::Misc::friendlyUnit(bytesReceived), Utils::Misc::friendlyUnit(m_sizeLimit)));
+        emit downloadFailed(m_downloadRequest.url(), msg.arg(Utils::Misc::friendlyUnit(bytesReceived), Utils::Misc::friendlyUnit(m_downloadRequest.limit())));
     }
 }
 
-void DownloadHandler::init()
-{
-    m_reply->setParent(this);
-    if (m_sizeLimit > 0)
-        connect(m_reply, &QNetworkReply::downloadProgress, this, &Net::DownloadHandler::checkDownloadSize);
-    connect(m_reply, &QNetworkReply::finished, this, &Net::DownloadHandler::processFinishedDownload);
-}
-
-bool DownloadHandler::saveToFile(const QByteArray &replyData, QString &filePath)
-{
-    QTemporaryFile *tmpfile = new QTemporaryFile(Utils::Fs::tempPath() + "XXXXXX");
-    if (!tmpfile->open()) {
-        delete tmpfile;
-        return false;
-    }
-
-    tmpfile->setAutoRemove(false);
-    filePath = tmpfile->fileName();
-    qDebug("Temporary filename is: %s", qUtf8Printable(filePath));
-    if (m_reply->isOpen() || m_reply->open(QIODevice::ReadOnly)) {
-        tmpfile->write(replyData);
-        tmpfile->close();
-        // XXX: tmpfile needs to be deleted on Windows before using the file
-        // or it will complain that the file is used by another process.
-        delete tmpfile;
-        return true;
-    }
-    else {
-        delete tmpfile;
-        Utils::Fs::forceRemove(filePath);
-    }
-
-    return false;
-}
-
-void DownloadHandler::handleRedirection(QUrl newUrl)
+void Net::DownloadHandler::handleRedirection(QUrl newUrl)
 {
     // Resolve relative urls
     if (newUrl.isRelative())
         newUrl = m_reply->url().resolved(newUrl);
 
     const QString newUrlString = newUrl.toString();
-    qDebug("Redirecting from %s to %s", qUtf8Printable(m_reply->url().toString()), qUtf8Printable(newUrlString));
+    qDebug("Redirecting from %s to %s...", qUtf8Printable(m_reply->url().toString()), qUtf8Printable(newUrlString));
 
     // Redirect to magnet workaround
     if (newUrlString.startsWith("magnet:", Qt::CaseInsensitive)) {
         qDebug("Magnet redirect detected.");
         m_reply->abort();
-        if (m_handleRedirectToMagnet)
-            emit redirectedToMagnet(m_url, newUrlString);
+        if (m_downloadRequest.handleRedirectToMagnet())
+            emit redirectedToMagnet(m_downloadRequest.url(), newUrlString);
         else
-            emit downloadFailed(m_url, tr("Unexpected redirect to magnet URI."));
+            emit downloadFailed(m_downloadRequest.url(), tr("Unexpected redirect to magnet URI."));
 
         this->deleteLater();
     }
     else {
-        DownloadHandler *tmp = m_manager->downloadUrl(newUrlString, m_saveToFile, m_sizeLimit, m_handleRedirectToMagnet);
-        m_reply->deleteLater();
-        m_reply = tmp->m_reply;
-        init();
-        tmp->m_reply = nullptr;
-        delete tmp;
+        DownloadHandler *redirected = m_manager->download(DownloadRequest(m_downloadRequest).url(newUrlString));
+        connect(redirected, &DownloadHandler::destroyed, this, &DownloadHandler::deleteLater);
+        connect(redirected, &DownloadHandler::downloadFailed, this, [this](const QString &, const QString &reason)
+        {
+            emit downloadFailed(url(), reason);
+        });
+        connect(redirected, &DownloadHandler::redirectedToMagnet, this, [this](const QString &, const QString &magnetUri)
+        {
+            emit redirectedToMagnet(url(), magnetUri);
+        });
+        connect(redirected, static_cast<void (DownloadHandler::*)(const QString &, const QString &)>(&DownloadHandler::downloadFinished)
+                , this, [this](const QString &, const QString &fileName)
+        {
+            emit downloadFinished(url(), fileName);
+        });
+        connect(redirected, static_cast<void (DownloadHandler::*)(const QString &, const QByteArray &)>(&DownloadHandler::downloadFinished)
+                , this, [this](const QString &, const QByteArray &data)
+        {
+            emit downloadFinished(url(), data);
+        });
     }
 }
 
-QString errorCodeToString(QNetworkReply::NetworkError status)
+QString Net::DownloadHandler::errorCodeToString(const QNetworkReply::NetworkError status)
 {
     switch (status) {
     case QNetworkReply::HostNotFoundError:
-        return QObject::tr("The remote host name was not found (invalid hostname)");
+        return tr("The remote host name was not found (invalid hostname)");
     case QNetworkReply::OperationCanceledError:
-        return QObject::tr("The operation was canceled");
+        return tr("The operation was canceled");
     case QNetworkReply::RemoteHostClosedError:
-        return QObject::tr("The remote server closed the connection prematurely, before the entire reply was received and processed");
+        return tr("The remote server closed the connection prematurely, before the entire reply was received and processed");
     case QNetworkReply::TimeoutError:
-        return QObject::tr("The connection to the remote server timed out");
+        return tr("The connection to the remote server timed out");
     case QNetworkReply::SslHandshakeFailedError:
-        return QObject::tr("SSL/TLS handshake failed");
+        return tr("SSL/TLS handshake failed");
     case QNetworkReply::ConnectionRefusedError:
-        return QObject::tr("The remote server refused the connection");
+        return tr("The remote server refused the connection");
     case QNetworkReply::ProxyConnectionRefusedError:
-        return QObject::tr("The connection to the proxy server was refused");
+        return tr("The connection to the proxy server was refused");
     case QNetworkReply::ProxyConnectionClosedError:
-        return QObject::tr("The proxy server closed the connection prematurely");
+        return tr("The proxy server closed the connection prematurely");
     case QNetworkReply::ProxyNotFoundError:
-        return QObject::tr("The proxy host name was not found");
+        return tr("The proxy host name was not found");
     case QNetworkReply::ProxyTimeoutError:
-        return QObject::tr("The connection to the proxy timed out or the proxy did not reply in time to the request sent");
+        return tr("The connection to the proxy timed out or the proxy did not reply in time to the request sent");
     case QNetworkReply::ProxyAuthenticationRequiredError:
-        return QObject::tr("The proxy requires authentication in order to honor the request but did not accept any credentials offered");
+        return tr("The proxy requires authentication in order to honor the request but did not accept any credentials offered");
     case QNetworkReply::ContentAccessDenied:
-        return QObject::tr("The access to the remote content was denied (401)");
+        return tr("The access to the remote content was denied (401)");
     case QNetworkReply::ContentOperationNotPermittedError:
-        return QObject::tr("The operation requested on the remote content is not permitted");
+        return tr("The operation requested on the remote content is not permitted");
     case QNetworkReply::ContentNotFoundError:
-        return QObject::tr("The remote content was not found at the server (404)");
+        return tr("The remote content was not found at the server (404)");
     case QNetworkReply::AuthenticationRequiredError:
-        return QObject::tr("The remote server requires authentication to serve the content but the credentials provided were not accepted");
+        return tr("The remote server requires authentication to serve the content but the credentials provided were not accepted");
     case QNetworkReply::ProtocolUnknownError:
-        return QObject::tr("The Network Access API cannot honor the request because the protocol is not known");
+        return tr("The Network Access API cannot honor the request because the protocol is not known");
     case QNetworkReply::ProtocolInvalidOperationError:
-        return QObject::tr("The requested operation is invalid for this protocol");
+        return tr("The requested operation is invalid for this protocol");
     case QNetworkReply::UnknownNetworkError:
-        return QObject::tr("An unknown network-related error was detected");
+        return tr("An unknown network-related error was detected");
     case QNetworkReply::UnknownProxyError:
-        return QObject::tr("An unknown proxy-related error was detected");
+        return tr("An unknown proxy-related error was detected");
     case QNetworkReply::UnknownContentError:
-        return QObject::tr("An unknown error related to the remote content was detected");
+        return tr("An unknown error related to the remote content was detected");
     case QNetworkReply::ProtocolFailure:
-        return QObject::tr("A breakdown in protocol was detected");
+        return tr("A breakdown in protocol was detected");
     default:
-        return QObject::tr("Unknown error");
+        return tr("Unknown error");
     }
 }

src/base/net/downloadhandler.h

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -30,10 +30,11 @@
 #ifndef NET_DOWNLOADHANDLER_H
 #define NET_DOWNLOADHANDLER_H
 
+#include <QNetworkReply>
 #include <QObject>
 
-class QNetworkAccessManager;
-class QNetworkReply;
+#include "downloadmanager.h"
+
 class QUrl;
 
 namespace Net
@@ -43,10 +44,14 @@ namespace Net
     class DownloadHandler : public QObject
     {
         Q_OBJECT
+        Q_DISABLE_COPY(DownloadHandler)
+
+        friend class DownloadManager;
+
+        DownloadHandler(QNetworkReply *reply, DownloadManager *manager, const DownloadRequest &downloadRequest);
 
     public:
-        DownloadHandler(QNetworkReply *reply, DownloadManager *manager, bool saveToFile = false, qint64 limit = 0, bool handleRedirectToMagnet = false);
-        ~DownloadHandler();
+        ~DownloadHandler() override;
 
         QString url() const;
 
@@ -61,16 +66,14 @@ namespace Net
         void checkDownloadSize(qint64 bytesReceived, qint64 bytesTotal);
 
     private:
-        void init();
-        bool saveToFile(const QByteArray &replyData, QString &filePath);
+        void assignNetworkReply(QNetworkReply *reply);
         void handleRedirection(QUrl newUrl);
 
+        static QString errorCodeToString(QNetworkReply::NetworkError status);
+
         QNetworkReply *m_reply;
         DownloadManager *m_manager;
-        bool m_saveToFile;
-        qint64 m_sizeLimit;
-        bool m_handleRedirectToMagnet;
-        QString m_url;
+        const DownloadRequest m_downloadRequest;
     };
 }
 

src/base/net/downloadmanager.cpp

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -39,6 +39,7 @@
 #include <QSslError>
 #include <QUrl>
 
+#include "base/global.h"
 #include "base/preferences.h"
 #include "downloadhandler.h"
 #include "proxyconfigurationmanager.h"
@@ -56,7 +57,7 @@ namespace
         {
             QDateTime now = QDateTime::currentDateTime();
             QList<QNetworkCookie> cookies = Preferences::instance()->getNetworkCookies();
-            foreach (const QNetworkCookie &cookie, Preferences::instance()->getNetworkCookies()) {
+            for (const QNetworkCookie &cookie : asConst(Preferences::instance()->getNetworkCookies())) {
                 if (cookie.isSessionCookie() || (cookie.expirationDate() <= now))
                     cookies.removeAll(cookie);
             }
@@ -64,11 +65,11 @@ namespace
             setAllCookies(cookies);
         }
 
-        ~NetworkCookieJar()
+        ~NetworkCookieJar() override
         {
             QDateTime now = QDateTime::currentDateTime();
             QList<QNetworkCookie> cookies = allCookies();
-            foreach (const QNetworkCookie &cookie, allCookies()) {
+            for (const QNetworkCookie &cookie : asConst(allCookies())) {
                 if (cookie.isSessionCookie() || (cookie.expirationDate() <= now))
                     cookies.removeAll(cookie);
             }
@@ -83,7 +84,7 @@ namespace
         {
             QDateTime now = QDateTime::currentDateTime();
             QList<QNetworkCookie> cookies = QNetworkCookieJar::cookiesForUrl(url);
-            foreach (const QNetworkCookie &cookie, QNetworkCookieJar::cookiesForUrl(url)) {
+            for (const QNetworkCookie &cookie : asConst(QNetworkCookieJar::cookiesForUrl(url))) {
                 if (!cookie.isSessionCookie() && (cookie.expirationDate() <= now))
                     cookies.removeAll(cookie);
             }
@@ -95,7 +96,7 @@ namespace
         {
             QDateTime now = QDateTime::currentDateTime();
             QList<QNetworkCookie> cookies = cookieList;
-            foreach (const QNetworkCookie &cookie, cookieList) {
+            for (const QNetworkCookie &cookie : cookieList) {
                 if (!cookie.isSessionCookie() && (cookie.expirationDate() <= now))
                     cookies.removeAll(cookie);
             }
@@ -103,28 +104,47 @@ namespace
             return QNetworkCookieJar::setCookiesFromUrl(cookies, url);
         }
     };
+
+    QNetworkRequest createNetworkRequest(const Net::DownloadRequest &downloadRequest)
+    {
+        QNetworkRequest request {downloadRequest.url()};
+
+        if (downloadRequest.userAgent().isEmpty())
+            request.setRawHeader("User-Agent", DEFAULT_USER_AGENT);
+        else
+            request.setRawHeader("User-Agent", downloadRequest.userAgent().toUtf8());
+
+        // Spoof HTTP Referer to allow adding torrent link from Torcache/KickAssTorrents
+        request.setRawHeader("Referer", request.url().toEncoded().data());
+        // Accept gzip
+        request.setRawHeader("Accept-Encoding", "gzip");
+
+        return request;
+    }
 }
 
-using namespace Net;
+Net::DownloadManager *Net::DownloadManager::m_instance = nullptr;
 
-DownloadManager *DownloadManager::m_instance = nullptr;
-
-DownloadManager::DownloadManager(QObject *parent)
+Net::DownloadManager::DownloadManager(QObject *parent)
     : QObject(parent)
 {
 #ifndef QT_NO_OPENSSL
     connect(&m_networkManager, &QNetworkAccessManager::sslErrors, this, &Net::DownloadManager::ignoreSslErrors);
 #endif
+    connect(&m_networkManager, &QNetworkAccessManager::finished, this, &DownloadManager::handleReplyFinished);
+    connect(ProxyConfigurationManager::instance(), &ProxyConfigurationManager::proxyConfigurationChanged
+            , this, &DownloadManager::applyProxySettings);
     m_networkManager.setCookieJar(new NetworkCookieJar(this));
+    applyProxySettings();
 }
 
-void DownloadManager::initInstance()
+void Net::DownloadManager::initInstance()
 {
     if (!m_instance)
         m_instance = new DownloadManager;
 }
 
-void DownloadManager::freeInstance()
+void Net::DownloadManager::freeInstance()
 {
     if (m_instance) {
         delete m_instance;
@@ -132,62 +152,65 @@ void DownloadManager::freeInstance()
     }
 }
 
-DownloadManager *DownloadManager::instance()
+Net::DownloadManager *Net::DownloadManager::instance()
 {
     return m_instance;
 }
 
-DownloadHandler *DownloadManager::downloadUrl(const QString &url, bool saveToFile, qint64 limit, bool handleRedirectToMagnet, const QString &userAgent)
+Net::DownloadHandler *Net::DownloadManager::download(const DownloadRequest &downloadRequest)
 {
-    // Update proxy settings
-    applyProxySettings();
-
     // Process download request
-    qDebug("url is %s", qUtf8Printable(url));
-    const QUrl qurl = QUrl(url);
-    QNetworkRequest request(qurl);
+    const QNetworkRequest request = createNetworkRequest(downloadRequest);
+    const ServiceID id = ServiceID::fromURL(request.url());
+    const bool isSequentialService = m_sequentialServices.contains(id);
+    if (!isSequentialService || !m_busyServices.contains(id)) {
+        qDebug("Downloading %s...", qUtf8Printable(downloadRequest.url()));
+        if (isSequentialService)
+            m_busyServices.insert(id);
+        return new DownloadHandler {
+            m_networkManager.get(request), this, downloadRequest};
+    }
 
-    if (userAgent.isEmpty())
-        request.setRawHeader("User-Agent", DEFAULT_USER_AGENT);
-    else
-        request.setRawHeader("User-Agent", userAgent.toUtf8());
-
-    // Spoof HTTP Referer to allow adding torrent link from Torcache/KickAssTorrents
-    request.setRawHeader("Referer", request.url().toEncoded().data());
-
-    qDebug("Downloading %s...", request.url().toEncoded().data());
-    qDebug() << "Cookies:" << m_networkManager.cookieJar()->cookiesForUrl(request.url());
-    // accept gzip
-    request.setRawHeader("Accept-Encoding", "gzip");
-    return new DownloadHandler(m_networkManager.get(request), this, saveToFile, limit, handleRedirectToMagnet);
+    auto *downloadHandler = new DownloadHandler {nullptr, this, downloadRequest};
+    connect(downloadHandler, &DownloadHandler::destroyed, this, [this, id, downloadHandler]()
+    {
+        m_waitingJobs[id].removeOne(downloadHandler);
+    });
+    m_waitingJobs[id].enqueue(downloadHandler);
+    return downloadHandler;
 }
 
-QList<QNetworkCookie> DownloadManager::cookiesForUrl(const QUrl &url) const
+void Net::DownloadManager::registerSequentialService(const Net::ServiceID &serviceID)
+{
+    m_sequentialServices.insert(serviceID);
+}
+
+QList<QNetworkCookie> Net::DownloadManager::cookiesForUrl(const QUrl &url) const
 {
     return m_networkManager.cookieJar()->cookiesForUrl(url);
 }
 
-bool DownloadManager::setCookiesFromUrl(const QList<QNetworkCookie> &cookieList, const QUrl &url)
+bool Net::DownloadManager::setCookiesFromUrl(const QList<QNetworkCookie> &cookieList, const QUrl &url)
 {
     return m_networkManager.cookieJar()->setCookiesFromUrl(cookieList, url);
 }
 
-QList<QNetworkCookie> DownloadManager::allCookies() const
+QList<QNetworkCookie> Net::DownloadManager::allCookies() const
 {
     return static_cast<NetworkCookieJar *>(m_networkManager.cookieJar())->allCookies();
 }
 
-void DownloadManager::setAllCookies(const QList<QNetworkCookie> &cookieList)
+void Net::DownloadManager::setAllCookies(const QList<QNetworkCookie> &cookieList)
 {
     static_cast<NetworkCookieJar *>(m_networkManager.cookieJar())->setAllCookies(cookieList);
 }
 
-bool DownloadManager::deleteCookie(const QNetworkCookie &cookie)
+bool Net::DownloadManager::deleteCookie(const QNetworkCookie &cookie)
 {
     return static_cast<NetworkCookieJar *>(m_networkManager.cookieJar())->deleteCookie(cookie);
 }
 
-void DownloadManager::applyProxySettings()
+void Net::DownloadManager::applyProxySettings()
 {
     auto proxyManager = ProxyConfigurationManager::instance();
     ProxyConfiguration proxyConfig = proxyManager->proxyConfiguration();
@@ -208,7 +231,7 @@ void DownloadManager::applyProxySettings()
         }
         // Authentication?
         if (proxyManager->isAuthenticationRequired()) {
-            qDebug("Proxy requires authentication, authenticating");
+            qDebug("Proxy requires authentication, authenticating...");
             proxy.setUser(proxyConfig.username);
             proxy.setPassword(proxyConfig.password);
         }
@@ -220,11 +243,101 @@ void DownloadManager::applyProxySettings()
     m_networkManager.setProxy(proxy);
 }
 
+void Net::DownloadManager::handleReplyFinished(QNetworkReply *reply)
+{
+    const ServiceID id = ServiceID::fromURL(reply->url());
+    auto waitingJobsIter = m_waitingJobs.find(id);
+    if ((waitingJobsIter == m_waitingJobs.end()) || waitingJobsIter.value().isEmpty()) {
+        m_busyServices.remove(id);
+        return;
+    }
+
+    DownloadHandler *handler = waitingJobsIter.value().dequeue();
+    qDebug("Downloading %s...", qUtf8Printable(handler->m_downloadRequest.url()));
+    handler->assignNetworkReply(m_networkManager.get(createNetworkRequest(handler->m_downloadRequest)));
+    handler->disconnect(this);
+}
+
 #ifndef QT_NO_OPENSSL
-void DownloadManager::ignoreSslErrors(QNetworkReply *reply, const QList<QSslError> &errors)
+void Net::DownloadManager::ignoreSslErrors(QNetworkReply *reply, const QList<QSslError> &errors)
 {
     Q_UNUSED(errors)
     // Ignore all SSL errors
     reply->ignoreSslErrors();
 }
 #endif
+
+Net::DownloadRequest::DownloadRequest(const QString &url)
+    : m_url {url}
+{
+}
+
+QString Net::DownloadRequest::url() const
+{
+    return m_url;
+}
+
+Net::DownloadRequest &Net::DownloadRequest::url(const QString &value)
+{
+    m_url = value;
+    return *this;
+}
+
+QString Net::DownloadRequest::userAgent() const
+{
+    return m_userAgent;
+}
+
+Net::DownloadRequest &Net::DownloadRequest::userAgent(const QString &value)
+{
+    m_userAgent = value;
+    return *this;
+}
+
+qint64 Net::DownloadRequest::limit() const
+{
+    return m_limit;
+}
+
+Net::DownloadRequest &Net::DownloadRequest::limit(qint64 value)
+{
+    m_limit = value;
+    return *this;
+}
+
+bool Net::DownloadRequest::saveToFile() const
+{
+    return m_saveToFile;
+}
+
+Net::DownloadRequest &Net::DownloadRequest::saveToFile(bool value)
+{
+    m_saveToFile = value;
+    return *this;
+}
+
+bool Net::DownloadRequest::handleRedirectToMagnet() const
+{
+    return m_handleRedirectToMagnet;
+}
+
+Net::DownloadRequest &Net::DownloadRequest::handleRedirectToMagnet(bool value)
+{
+    m_handleRedirectToMagnet = value;
+    return *this;
+}
+
+Net::ServiceID Net::ServiceID::fromURL(const QUrl &url)
+{
+    return {url.host(), url.port(80)};
+}
+
+uint Net::qHash(const ServiceID &serviceID, uint seed)
+{
+    return ::qHash(serviceID.hostName, seed) ^ serviceID.port;
+}
+
+bool Net::operator==(const ServiceID &lhs, const ServiceID &rhs)
+{
+    return ((lhs.hostName == rhs.hostName) && (lhs.port == rhs.port));
+}

src/base/net/downloadmanager.h

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2015  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -30,8 +30,12 @@
 #ifndef NET_DOWNLOADMANAGER_H
 #define NET_DOWNLOADMANAGER_H
 
-#include <QObject>
+#include <QHash>
 #include <QNetworkAccessManager>
+#include <QNetworkRequest>
+#include <QObject>
+#include <QQueue>
+#include <QSet>
 
 class QNetworkReply;
 class QNetworkCookie;
@@ -42,16 +46,57 @@ namespace Net
 {
     class DownloadHandler;
 
+    class DownloadRequest
+    {
+    public:
+        DownloadRequest(const QString &url);
+        DownloadRequest(const DownloadRequest &other) = default;
+
+        QString url() const;
+        DownloadRequest &url(const QString &value);
+
+        QString userAgent() const;
+        DownloadRequest &userAgent(const QString &value);
+
+        qint64 limit() const;
+        DownloadRequest &limit(qint64 value);
+
+        bool saveToFile() const;
+        DownloadRequest &saveToFile(bool value);
+
+        bool handleRedirectToMagnet() const;
+        DownloadRequest &handleRedirectToMagnet(bool value);
+
+    private:
+        QString m_url;
+        QString m_userAgent;
+        qint64 m_limit = 0;
+        bool m_saveToFile = false;
+        bool m_handleRedirectToMagnet = false;
+    };
+
+    struct ServiceID
+    {
+        QString hostName;
+        int port;
+
+        static ServiceID fromURL(const QUrl &url);
+    };
+
     class DownloadManager : public QObject
     {
         Q_OBJECT
+        Q_DISABLE_COPY(DownloadManager)
 
     public:
         static void initInstance();
         static void freeInstance();
         static DownloadManager *instance();
 
-        DownloadHandler *downloadUrl(const QString &url, bool saveToFile = false, qint64 limit = 0, bool handleRedirectToMagnet = false, const QString &userAgent = "");
+        DownloadHandler *download(const DownloadRequest &downloadRequest);
+
+        void registerSequentialService(const ServiceID &serviceID);
+
         QList<QNetworkCookie> cookiesForUrl(const QUrl &url) const;
         bool setCookiesFromUrl(const QList<QNetworkCookie> &cookieList, const QUrl &url);
         QList<QNetworkCookie> allCookies() const;
@@ -60,17 +105,25 @@ namespace Net
 
     private slots:
     #ifndef QT_NO_OPENSSL
-        void ignoreSslErrors(QNetworkReply *,const QList<QSslError> &);
+        void ignoreSslErrors(QNetworkReply *, const QList<QSslError> &);
     #endif
 
     private:
         explicit DownloadManager(QObject *parent = nullptr);
 
         void applyProxySettings();
+        void handleReplyFinished(QNetworkReply *reply);
 
         static DownloadManager *m_instance;
         QNetworkAccessManager m_networkManager;
+
+        QSet<ServiceID> m_sequentialServices;
+        QSet<ServiceID> m_busyServices;
+        QHash<ServiceID, QQueue<DownloadHandler *>> m_waitingJobs;
     };
+
+    uint qHash(const ServiceID &serviceID, uint seed);
+    bool operator==(const ServiceID &lhs, const ServiceID &rhs);
 }
 
 #endif // NET_DOWNLOADMANAGER_H

src/base/net/geoipmanager.cpp

@@ -118,7 +118,7 @@ void GeoIPManager::manageDatabaseUpdate()
 
 void GeoIPManager::downloadDatabaseFile()
 {
-    DownloadHandler *handler = DownloadManager::instance()->downloadUrl(DATABASE_URL);
+    DownloadHandler *handler = DownloadManager::instance()->download({DATABASE_URL});
     connect(handler, static_cast<void (Net::DownloadHandler::*)(const QString &, const QByteArray &)>(&Net::DownloadHandler::downloadFinished)
             , this, &GeoIPManager::downloadFinished);
     connect(handler, &Net::DownloadHandler::downloadFailed, this, &GeoIPManager::downloadFailed);

src/base/net/private/geoipdatabase.cpp

@@ -29,7 +29,6 @@
 #include <QDateTime>
 #include <QDebug>
 #include <QFile>
-#include <QHash>
 #include <QHostAddress>
 #include <QVariant>
 
@@ -93,12 +92,12 @@ GeoIPDatabase *GeoIPDatabase::load(const QString &filename, QString &error)
     QFile file(filename);
     if (file.size() > MAX_FILE_SIZE) {
         error = tr("Unsupported database file size.");
-        return 0;
+        return nullptr;
     }
 
     if (!file.open(QFile::ReadOnly)) {
         error = file.errorString();
-        return 0;
+        return nullptr;
     }
 
     db = new GeoIPDatabase(file.size());
@@ -106,13 +105,13 @@ GeoIPDatabase *GeoIPDatabase::load(const QString &filename, QString &error)
     if (file.read(reinterpret_cast<char *>(db->m_data), db->m_size) != db->m_size) {
         error = file.errorString();
         delete db;
-        return 0;
+        return nullptr;
     }
 
 
     if (!db->parseMetadata(db->readMetadata(), error) || !db->loadDB(error)) {
         delete db;
-        return 0;
+        return nullptr;
     }
 
     return db;
@@ -123,7 +122,7 @@ GeoIPDatabase *GeoIPDatabase::load(const QByteArray &data, QString &error)
     GeoIPDatabase *db = nullptr;
     if (data.size() > MAX_FILE_SIZE) {
         error = tr("Unsupported database file size.");
-        return 0;
+        return nullptr;
     }
 
     db = new GeoIPDatabase(data.size());
@@ -132,7 +131,7 @@ GeoIPDatabase *GeoIPDatabase::load(const QByteArray &data, QString &error)
 
     if (!db->parseMetadata(db->readMetadata(), error) || !db->loadDB(error)) {
         delete db;
-        return 0;
+        return nullptr;
     }
 
     return db;

src/base/net/proxyconfigurationmanager.cpp

@@ -40,7 +40,7 @@ const QString KEY_PASSWORD = SETTINGS_KEY("Password");
 
 namespace
 {
-    inline SettingsStorage *settings() { return  SettingsStorage::instance(); }
+    inline SettingsStorage *settings() { return SettingsStorage::instance(); }
 
     inline bool isSameConfig(const Net::ProxyConfiguration &conf1, const Net::ProxyConfiguration &conf2)
     {

src/base/net/reverseresolution.cpp

@@ -75,7 +75,7 @@ void ReverseResolution::resolve(const QString &ip)
 
 void ReverseResolution::hostResolved(const QHostInfo &host)
 {
-    const QString &ip = m_lookups.take(host.lookupId());
+    const QString ip = m_lookups.take(host.lookupId());
     Q_ASSERT(!ip.isNull());
 
     if (host.error() != QHostInfo::NoError) {
@@ -83,7 +83,7 @@ void ReverseResolution::hostResolved(const QHostInfo &host)
         return;
     }
 
-    const QString &hostname = host.hostName();
+    const QString hostname = host.hostName();
 
     qDebug() << Q_FUNC_INFO << ip << QString("->") << hostname;
     m_cache.insert(ip, new QString(hostname));

src/base/net/smtp.cpp

@@ -34,18 +34,16 @@
 
 #include <QCryptographicHash>
 #include <QDebug>
-#include <QHostAddress>
 #include <QHostInfo>
-#include <QNetworkInterface>
 #include <QStringList>
 #include <QTextCodec>
-#include <QTextStream>
 #ifndef QT_NO_OPENSSL
 #include <QSslSocket>
 #else
 #include <QTcpSocket>
 #endif
 
+#include "base/global.h"
 #include "base/logger.h"
 #include "base/preferences.h"
 
@@ -67,7 +65,7 @@ namespace
         // ascii characters 0x36 ("6") and 0x5c ("\") are selected because they have large
         // Hamming distance (http://en.wikipedia.org/wiki/Hamming_distance)
 
-        for (int i = 0; i < key.length(); i++) {
+        for (int i = 0; i < key.length(); ++i) {
             innerPadding[i] = innerPadding[i] ^ key.at(i); // XOR operation between every byte in key and innerpadding, of key length
             outerPadding[i] = outerPadding[i] ^ key.at(i); // XOR operation between every byte in key and outerpadding, of key length
         }
@@ -294,7 +292,7 @@ QByteArray Smtp::encodeMimeHeader(const QString &key, const QString &value, QTex
     if (!prefix.isEmpty()) line += prefix;
     if (!value.contains("=?") && latin1->canEncode(value)) {
         bool firstWord = true;
-        foreach (const QByteArray& word, value.toLatin1().split(' ')) {
+        for (const QByteArray &word : asConst(value.toLatin1().split(' '))) {
             if (line.size() > 78) {
                 rv = rv + line + "\r\n";
                 line.clear();
@@ -302,7 +300,7 @@ QByteArray Smtp::encodeMimeHeader(const QString &key, const QString &value, QTex
             if (firstWord)
                 line += word;
             else
-                line += " " + word;
+                line += ' ' + word;
             firstWord = false;
         }
     }
@@ -426,7 +424,7 @@ void Smtp::authenticate()
         // Skip authentication
         logError("The SMTP server does not seem to support any of the authentications modes "
                  "we support [CRAM-MD5|PLAIN|LOGIN], skipping authentication, "
-                 "knowing it is likely to fail... Server Auth Modes: " + auth.join("|"));
+                 "knowing it is likely to fail... Server Auth Modes: " + auth.join('|'));
         m_state = Authenticated;
         // At this point the server will not send any response
         // So fill the buffer with a fake one to pass the tests
@@ -506,7 +504,7 @@ void Smtp::authLogin()
 void Smtp::logError(const QString &msg)
 {
     qDebug() << "Email Notification Error:" << msg;
-    Logger::instance()->addMessage(tr("Email Notification Error:") + " " + msg, Log::CRITICAL);
+    Logger::instance()->addMessage(tr("Email Notification Error:") + ' ' + msg, Log::CRITICAL);
 }
 
 QString Smtp::getCurrentDateTime() const
@@ -532,7 +530,7 @@ QString Smtp::getCurrentDateTime() const
     std::snprintf(buf, sizeof(buf), "%+05d", timeOffset);
     QString timeOffsetStr = buf;
 
-    QString ret = weekDayStr + ", " + dayStr + " " + monthStr + " " + yearStr + " " + timeStr + " " + timeOffsetStr;
+    QString ret = weekDayStr + ", " + dayStr + ' ' + monthStr + ' ' + yearStr + ' ' + timeStr + ' ' + timeOffsetStr;
     return ret;
 }
 

src/base/net/smtp.h

@@ -46,7 +46,6 @@ class QSslSocket;
 class QTcpSocket;
 #endif
 class QTextCodec;
-class QTextStream;
 
 namespace Net
 {

src/base/preferences.cpp

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2014  sledgehammer999 <sledgehammer999@qbittorrent.org>
+ * Copyright (C) 2014  sledgehammer999 <hammered999@gmail.com>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -33,7 +33,6 @@
 #include <QDir>
 #include <QLocale>
 #include <QMutableListIterator>
-#include <QPair>
 #include <QSettings>
 
 #ifndef DISABLE_GUI
@@ -44,13 +43,14 @@
 
 #ifdef Q_OS_WIN
 #include <shlobj.h>
-#include <winreg.h>
+#include <QRegularExpression>
 #endif
 
 #ifdef Q_OS_MAC
 #include <CoreServices/CoreServices.h>
 #endif
 
+#include "global.h"
 #include "logger.h"
 #include "settingsstorage.h"
 #include "utils/fs.h"
@@ -92,7 +92,8 @@ void Preferences::setValue(const QString &key, const QVariant &value)
 // General options
 QString Preferences::getLocale() const
 {
-    return value("Preferences/General/Locale", QLocale::system().name()).toString();
+    const QString localeName = value("Preferences/General/Locale").toString();
+    return (localeName.isEmpty() ? QLocale::system().name() : localeName);
 }
 
 void Preferences::setLocale(const QString &locale)
@@ -183,6 +184,16 @@ void Preferences::setMinimizeToTray(bool b)
     setValue("Preferences/General/MinimizeToTray", b);
 }
 
+bool Preferences::minimizeToTrayNotified() const
+{
+    return value("Preferences/General/MinimizeToTrayNotified", false).toBool();
+}
+
+void Preferences::setMinimizeToTrayNotified(bool b)
+{
+    setValue("Preferences/General/MinimizeToTrayNotified", b);
+}
+
 bool Preferences::closeToTray() const
 {
     return value("Preferences/General/CloseToTray", true).toBool();
@@ -192,7 +203,17 @@ void Preferences::setCloseToTray(bool b)
 {
     setValue("Preferences/General/CloseToTray", b);
 }
-#endif
+
+bool Preferences::closeToTrayNotified() const
+{
+    return value("Preferences/General/CloseToTrayNotified", false).toBool();
+}
+
+void Preferences::setCloseToTrayNotified(bool b)
+{
+    setValue("Preferences/General/CloseToTrayNotified", b);
+}
+#endif // Q_OS_MAC
 
 bool Preferences::isToolbarDisplayed() const
 {
@@ -235,14 +256,24 @@ void Preferences::setSplashScreenDisabled(bool b)
 }
 
 // Preventing from system suspend while active torrents are presented.
-bool Preferences::preventFromSuspend() const
+bool Preferences::preventFromSuspendWhenDownloading() const
 {
-    return value("Preferences/General/PreventFromSuspend", false).toBool();
+    return value("Preferences/General/PreventFromSuspendWhenDownloading", false).toBool();
 }
 
-void Preferences::setPreventFromSuspend(bool b)
+void Preferences::setPreventFromSuspendWhenDownloading(bool b)
 {
-    setValue("Preferences/General/PreventFromSuspend", b);
+    setValue("Preferences/General/PreventFromSuspendWhenDownloading", b);
+}
+
+bool Preferences::preventFromSuspendWhenSeeding() const
+{
+    return value("Preferences/General/PreventFromSuspendWhenSeeding", false).toBool();
+}
+
+void Preferences::setPreventFromSuspendWhenSeeding(bool b)
+{
+    setValue("Preferences/General/PreventFromSuspendWhenSeeding", b);
 }
 
 #ifdef Q_OS_WIN
@@ -256,14 +287,14 @@ void Preferences::setWinStartup(bool b)
 {
     QSettings settings("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", QSettings::NativeFormat);
     if (b) {
-        const QString bin_path = "\"" + Utils::Fs::toNativePath(qApp->applicationFilePath()) + "\"";
-        settings.setValue("qBittorrent", bin_path);
+        const QString binPath = '"' + Utils::Fs::toNativePath(qApp->applicationFilePath()) + '"';
+        settings.setValue("qBittorrent", binPath);
     }
     else {
         settings.remove("qBittorrent");
     }
 }
-#endif
+#endif // Q_OS_WIN
 
 // Downloads
 QString Preferences::lastLocationPath() const
@@ -475,7 +506,7 @@ void Preferences::setWebUiAuthSubnetWhitelistEnabled(bool enabled)
 QList<Utils::Net::Subnet> Preferences::getWebUiAuthSubnetWhitelist() const
 {
     QList<Utils::Net::Subnet> subnets;
-    foreach (const QString &rawSubnet, value("Preferences/WebUI/AuthSubnetWhitelist").toStringList()) {
+    for (const QString &rawSubnet : asConst(value("Preferences/WebUI/AuthSubnetWhitelist").toStringList())) {
         bool ok = false;
         const Utils::Net::Subnet subnet = Utils::Net::parseSubnet(rawSubnet.trimmed(), &ok);
         if (ok)
@@ -500,7 +531,7 @@ void Preferences::setWebUiAuthSubnetWhitelist(QStringList subnets)
 
 QString Preferences::getServerDomains() const
 {
-    return value("Preferences/WebUI/ServerDomains", "*").toString();
+    return value("Preferences/WebUI/ServerDomains", QChar('*')).toString();
 }
 
 void Preferences::setServerDomains(const QString &str)
@@ -510,7 +541,7 @@ void Preferences::setServerDomains(const QString &str)
 
 QString Preferences::getWebUiAddress() const
 {
-    return value("Preferences/WebUI/Address", "*").toString().trimmed();
+    return value("Preferences/WebUI/Address", QChar('*')).toString().trimmed();
 }
 
 void Preferences::setWebUiAddress(const QString &addr)
@@ -554,28 +585,58 @@ void Preferences::setWebUiUsername(const QString &username)
 
 QString Preferences::getWebUiPassword() const
 {
-    QString pass_ha1 = value("Preferences/WebUI/Password_ha1").toString();
-    if (pass_ha1.isEmpty()) {
+    QString passHa1 = value("Preferences/WebUI/Password_ha1").toString();
+    if (passHa1.isEmpty()) {
         QCryptographicHash md5(QCryptographicHash::Md5);
         md5.addData("adminadmin");
-        pass_ha1 = md5.result().toHex();
+        passHa1 = md5.result().toHex();
     }
-    return pass_ha1;
+    return passHa1;
 }
 
-void Preferences::setWebUiPassword(const QString &new_password)
+void Preferences::setWebUiPassword(const QString &newPassword)
 {
     // Do not overwrite current password with its hash
-    if (new_password == getWebUiPassword())
+    if (newPassword == getWebUiPassword())
         return;
 
     // Encode to md5 and save
     QCryptographicHash md5(QCryptographicHash::Md5);
-    md5.addData(new_password.toLocal8Bit());
+    md5.addData(newPassword.toLocal8Bit());
 
     setValue("Preferences/WebUI/Password_ha1", md5.result().toHex());
 }
 
+bool Preferences::isWebUiClickjackingProtectionEnabled() const
+{
+    return value("Preferences/WebUI/ClickjackingProtection", true).toBool();
+}
+
+void Preferences::setWebUiClickjackingProtectionEnabled(bool enabled)
+{
+    setValue("Preferences/WebUI/ClickjackingProtection", enabled);
+}
+
+bool Preferences::isWebUiCSRFProtectionEnabled() const
+{
+    return value("Preferences/WebUI/CSRFProtection", true).toBool();
+}
+
+void Preferences::setWebUiCSRFProtectionEnabled(bool enabled)
+{
+    setValue("Preferences/WebUI/CSRFProtection", enabled);
+}
+
+bool Preferences::isWebUIHostHeaderValidationEnabled() const
+{
+    return value("Preferences/WebUI/HostHeaderValidation", true).toBool();
+}
+
+void Preferences::setWebUIHostHeaderValidationEnabled(const bool enabled)
+{
+    setValue("Preferences/WebUI/HostHeaderValidation", enabled);
+}
+
 bool Preferences::isWebUiHttpsEnabled() const
 {
     return value("Preferences/WebUI/HTTPS/Enabled", false).toBool();
@@ -828,153 +889,6 @@ void Preferences::disableRecursiveDownload(bool disable)
 }
 
 #ifdef Q_OS_WIN
-namespace
-{
-    enum REG_SEARCH_TYPE
-    {
-        USER,
-        SYSTEM_32BIT,
-        SYSTEM_64BIT
-    };
-
-    QStringList getRegSubkeys(HKEY handle)
-    {
-        QStringList keys;
-
-        DWORD cSubKeys = 0;
-        DWORD cMaxSubKeyLen = 0;
-        LONG res = ::RegQueryInfoKeyW(handle, NULL, NULL, NULL, &cSubKeys, &cMaxSubKeyLen, NULL, NULL, NULL, NULL, NULL, NULL);
-
-        if (res == ERROR_SUCCESS) {
-            cMaxSubKeyLen++; // For null character
-            LPWSTR lpName = new WCHAR[cMaxSubKeyLen];
-            DWORD cName;
-
-            for (DWORD i = 0; i < cSubKeys; ++i) {
-                cName = cMaxSubKeyLen;
-                res = ::RegEnumKeyExW(handle, i, lpName, &cName, NULL, NULL, NULL, NULL);
-                if (res == ERROR_SUCCESS)
-                    keys.push_back(QString::fromWCharArray(lpName));
-            }
-
-            delete[] lpName;
-        }
-
-        return keys;
-    }
-
-    QString getRegValue(HKEY handle, const QString &name = QString())
-    {
-        QString result;
-
-        DWORD type = 0;
-        DWORD cbData = 0;
-        LPWSTR lpValueName = NULL;
-        if (!name.isEmpty()) {
-            lpValueName = new WCHAR[name.size() + 1];
-            name.toWCharArray(lpValueName);
-            lpValueName[name.size()] = 0;
-        }
-
-        // Discover the size of the value
-        ::RegQueryValueExW(handle, lpValueName, NULL, &type, NULL, &cbData);
-        DWORD cBuffer = (cbData / sizeof(WCHAR)) + 1;
-        LPWSTR lpData = new WCHAR[cBuffer];
-        LONG res = ::RegQueryValueExW(handle, lpValueName, NULL, &type, (LPBYTE)lpData, &cbData);
-        if (lpValueName)
-            delete[] lpValueName;
-
-        if (res == ERROR_SUCCESS) {
-            lpData[cBuffer - 1] = 0;
-            result = QString::fromWCharArray(lpData);
-        }
-        delete[] lpData;
-
-        return result;
-    }
-
-    QString pythonSearchReg(const REG_SEARCH_TYPE type)
-    {
-        HKEY hkRoot;
-        if (type == USER)
-            hkRoot = HKEY_CURRENT_USER;
-        else
-            hkRoot = HKEY_LOCAL_MACHINE;
-
-        REGSAM samDesired = KEY_READ;
-        if (type == SYSTEM_32BIT)
-            samDesired |= KEY_WOW64_32KEY;
-        else if (type == SYSTEM_64BIT)
-            samDesired |= KEY_WOW64_64KEY;
-
-        QString path;
-        LONG res = 0;
-        HKEY hkPythonCore;
-        res = ::RegOpenKeyExW(hkRoot, L"SOFTWARE\\Python\\PythonCore", 0, samDesired, &hkPythonCore);
-
-        if (res == ERROR_SUCCESS) {
-            QStringList versions = getRegSubkeys(hkPythonCore);
-            qDebug("Python versions nb: %d", versions.size());
-            versions.sort();
-
-            bool found = false;
-            while (!found && !versions.empty()) {
-                const QString version = versions.takeLast() + "\\InstallPath";
-                LPWSTR lpSubkey = new WCHAR[version.size() + 1];
-                version.toWCharArray(lpSubkey);
-                lpSubkey[version.size()] = 0;
-
-                HKEY hkInstallPath;
-                res = ::RegOpenKeyExW(hkPythonCore, lpSubkey, 0, samDesired, &hkInstallPath);
-                delete[] lpSubkey;
-
-                if (res == ERROR_SUCCESS) {
-                    qDebug("Detected possible Python v%s location", qUtf8Printable(version));
-                    path = getRegValue(hkInstallPath);
-                    ::RegCloseKey(hkInstallPath);
-
-                    if (!path.isEmpty() && QDir(path).exists("python.exe")) {
-                        qDebug("Found python.exe at %s", qUtf8Printable(path));
-                        found = true;
-                    }
-                }
-            }
-
-            if (!found)
-                path = QString();
-
-            ::RegCloseKey(hkPythonCore);
-        }
-
-        return path;
-    }
-}
-
-QString Preferences::getPythonPath()
-{
-    QString path = pythonSearchReg(USER);
-    if (!path.isEmpty())
-        return path;
-
-    path = pythonSearchReg(SYSTEM_32BIT);
-    if (!path.isEmpty())
-        return path;
-
-    path = pythonSearchReg(SYSTEM_64BIT);
-    if (!path.isEmpty())
-        return path;
-
-    // Fallback: Detect python from default locations
-    const QStringList dirs = QDir("C:/").entryList(QStringList("Python*"), QDir::Dirs, QDir::Name | QDir::Reversed);
-    foreach (const QString &dir, dirs) {
-        const QString path("C:/" + dir + "/");
-        if (QFile::exists(path + "python.exe"))
-            return path;
-    }
-
-    return QString();
-}
-
 bool Preferences::neverCheckFileAssoc() const
 {
     return value("Preferences/Win32/NeverCheckFileAssocation", false).toBool();
@@ -1001,13 +915,14 @@ bool Preferences::isMagnetLinkAssocSet()
     QSettings settings("HKEY_CURRENT_USER\\Software\\Classes", QSettings::NativeFormat);
 
     // Check magnet link assoc
-    QRegExp exe_reg("\"([^\"]+)\".*");
-    QString shell_command = Utils::Fs::toNativePath(settings.value("magnet/shell/open/command/Default", "").toString());
-    if (exe_reg.indexIn(shell_command) < 0)
+    const QString shellCommand = Utils::Fs::toNativePath(settings.value("magnet/shell/open/command/Default", "").toString());
+
+    const QRegularExpressionMatch exeRegMatch = QRegularExpression("\"([^\"]+)\".*").match(shellCommand);
+    if (!exeRegMatch.hasMatch())
         return false;
-    QString assoc_exe = exe_reg.cap(1);
-    qDebug("exe: %s", qUtf8Printable(assoc_exe));
-    if (assoc_exe.compare(Utils::Fs::toNativePath(qApp->applicationFilePath()), Qt::CaseInsensitive) != 0)
+
+    const QString assocExe = exeRegMatch.captured(1);
+    if (assocExe.compare(Utils::Fs::toNativePath(qApp->applicationFilePath()), Qt::CaseInsensitive) != 0)
         return false;
 
     return true;
@@ -1019,9 +934,9 @@ void Preferences::setTorrentFileAssoc(bool set)
 
     // .Torrent association
     if (set) {
-        QString old_progid = settings.value(".torrent/Default").toString();
-        if (!old_progid.isEmpty() && (old_progid != "qBittorrent"))
-            settings.setValue(".torrent/OpenWithProgids/" + old_progid, "");
+        QString oldProgId = settings.value(".torrent/Default").toString();
+        if (!oldProgId.isEmpty() && (oldProgId != "qBittorrent"))
+            settings.setValue(".torrent/OpenWithProgids/" + oldProgId, "");
         settings.setValue(".torrent/Default", "qBittorrent");
     }
     else if (isTorrentFileAssocSet()) {
@@ -1037,15 +952,15 @@ void Preferences::setMagnetLinkAssoc(bool set)
 
     // Magnet association
     if (set) {
-        const QString command_str = "\"" + qApp->applicationFilePath() + "\" \"%1\"";
-        const QString icon_str = "\"" + qApp->applicationFilePath() + "\",1";
+        const QString commandStr = '"' + qApp->applicationFilePath() + "\" \"%1\"";
+        const QString iconStr = '"' + qApp->applicationFilePath() + "\",1";
 
         settings.setValue("magnet/Default", "URL:Magnet link");
         settings.setValue("magnet/Content Type", "application/x-magnet");
         settings.setValue("magnet/URL Protocol", "");
-        settings.setValue("magnet/DefaultIcon/Default", Utils::Fs::toNativePath(icon_str));
+        settings.setValue("magnet/DefaultIcon/Default", Utils::Fs::toNativePath(iconStr));
         settings.setValue("magnet/shell/Default", "open");
-        settings.setValue("magnet/shell/open/command/Default", Utils::Fs::toNativePath(command_str));
+        settings.setValue("magnet/shell/open/command/Default", Utils::Fs::toNativePath(commandStr));
     }
     else if (isMagnetLinkAssocSet()) {
         settings.remove("magnet");
@@ -1053,7 +968,7 @@ void Preferences::setMagnetLinkAssoc(bool set)
 
     SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, 0, 0);
 }
-#endif
+#endif // Q_OS_WIN
 
 #ifdef Q_OS_MAC
 namespace
@@ -1109,7 +1024,7 @@ void Preferences::setMagnetLinkAssoc()
     CFStringRef myBundleId = CFBundleGetIdentifier(CFBundleGetMainBundle());
     LSSetDefaultHandlerForURLScheme(magnetUrlScheme, myBundleId);
 }
-#endif
+#endif // Q_OS_MAC
 
 int Preferences::getTrackerPort() const
 {
@@ -1378,6 +1293,16 @@ void Preferences::setSearchTabHeaderState(const QByteArray &state)
     setValue("SearchTab/qt5/HeaderState", state);
 }
 
+bool Preferences::getRegexAsFilteringPatternForSearchJob() const
+{
+    return value("SearchTab/UseRegexAsFilteringPattern", false).toBool();
+}
+
+void Preferences::setRegexAsFilteringPatternForSearchJob(const bool checked)
+{
+    setValue("SearchTab/UseRegexAsFilteringPattern", checked);
+}
+
 QStringList Preferences::getSearchEngDisabled() const
 {
     return value("SearchEngines/disabledEngines").toStringList();
@@ -1468,6 +1393,16 @@ void Preferences::setTransHeaderState(const QByteArray &state)
     setValue("TransferList/qt5/HeaderState", state);
 }
 
+bool Preferences::getRegexAsFilteringPatternForTransferList() const
+{
+    return value("TransferList/UseRegexAsFilteringPattern", false).toBool();
+}
+
+void Preferences::setRegexAsFilteringPatternForTransferList(const bool checked)
+{
+    setValue("TransferList/UseRegexAsFilteringPattern", checked);
+}
+
 // From old RssSettings class
 bool Preferences::isRSSWidgetEnabled() const
 {
@@ -1492,8 +1427,8 @@ void Preferences::setToolbarTextPosition(const int position)
 QList<QNetworkCookie> Preferences::getNetworkCookies() const
 {
     QList<QNetworkCookie> cookies;
-    QStringList rawCookies = value("Network/Cookies").toStringList();
-    foreach (const QString &rawCookie, rawCookies)
+    const QStringList rawCookies = value("Network/Cookies").toStringList();
+    for (const QString &rawCookie : rawCookies)
         cookies << QNetworkCookie::parseCookies(rawCookie.toUtf8());
 
     return cookies;
@@ -1502,12 +1437,22 @@ QList<QNetworkCookie> Preferences::getNetworkCookies() const
 void Preferences::setNetworkCookies(const QList<QNetworkCookie> &cookies)
 {
     QStringList rawCookies;
-    foreach (const QNetworkCookie &cookie, cookies)
+    for (const QNetworkCookie &cookie : cookies)
         rawCookies << cookie.toRawForm();
 
     setValue("Network/Cookies", rawCookies);
 }
 
+bool Preferences::isSpeedWidgetEnabled() const
+{
+    return value("SpeedWidget/Enabled", true).toBool();
+}
+
+void Preferences::setSpeedWidgetEnabled(bool enabled)
+{
+    setValue("SpeedWidget/Enabled", enabled);
+}
+
 int Preferences::getSpeedWidgetPeriod() const
 {
     return value("SpeedWidget/period", 1).toInt();
@@ -1531,18 +1476,27 @@ void Preferences::setSpeedWidgetGraphEnable(int id, const bool enable)
 
 void Preferences::upgrade()
 {
-    QStringList labels = value("TransferListFilters/customLabels").toStringList();
+    SettingsStorage *settingsStorage = SettingsStorage::instance();
+
+    const QStringList labels = value("TransferListFilters/customLabels").toStringList();
     if (!labels.isEmpty()) {
         QVariantMap categories = value("BitTorrent/Session/Categories").toMap();
-        foreach (const QString &label, labels) {
+        for (const QString &label : labels) {
             if (!categories.contains(label))
                 categories[label] = "";
         }
         setValue("BitTorrent/Session/Categories", categories);
-        SettingsStorage::instance()->removeValue("TransferListFilters/customLabels");
+        settingsStorage->removeValue("TransferListFilters/customLabels");
     }
 
-    SettingsStorage::instance()->removeValue("Preferences/Downloads/AppendLabel");
+    settingsStorage->removeValue("Preferences/Downloads/AppendLabel");
+
+    // Inhibit sleep based on running downloads/available seeds rather than network activity.
+    if (value("Preferences/General/PreventFromSuspend", false).toBool()) {
+        setPreventFromSuspendWhenDownloading(true);
+        setPreventFromSuspendWhenSeeding(true);
+    }
+    settingsStorage->removeValue("Preferences/General/PreventFromSuspend");
 }
 
 void Preferences::apply()

src/base/preferences.h

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2014  sledgehammer999 <sledgehammer999@qbittorrent.org>
+ * Copyright (C) 2014  sledgehammer999 <hammered999@gmail.com>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -123,8 +123,10 @@ public:
     void setStartMinimized(bool b);
     bool isSplashScreenDisabled() const;
     void setSplashScreenDisabled(bool b);
-    bool preventFromSuspend() const;
-    void setPreventFromSuspend(bool b);
+    bool preventFromSuspendWhenDownloading() const;
+    void setPreventFromSuspendWhenDownloading(bool b);
+    bool preventFromSuspendWhenSeeding() const;
+    void setPreventFromSuspendWhenSeeding(bool b);
 #ifdef Q_OS_WIN
     bool WinStartup() const;
     void setWinStartup(bool b);
@@ -192,7 +194,15 @@ public:
     QString getWebUiUsername() const;
     void setWebUiUsername(const QString &username);
     QString getWebUiPassword() const;
-    void setWebUiPassword(const QString &new_password);
+    void setWebUiPassword(const QString &newPassword);
+
+    // WebUI security
+    bool isWebUiClickjackingProtectionEnabled() const;
+    void setWebUiClickjackingProtectionEnabled(bool enabled);
+    bool isWebUiCSRFProtectionEnabled() const;
+    void setWebUiCSRFProtectionEnabled(bool enabled);
+    bool isWebUIHostHeaderValidationEnabled() const;
+    void setWebUIHostHeaderValidationEnabled(bool enabled);
 
     // HTTPS
     bool isWebUiHttpsEnabled() const;
@@ -251,7 +261,6 @@ public:
     bool recursiveDownloadDisabled() const;
     void disableRecursiveDownload(bool disable = true);
 #ifdef Q_OS_WIN
-    static QString getPythonPath();
     bool neverCheckFileAssoc() const;
     void setNeverCheckFileAssoc(bool check = true);
     static bool isTorrentFileAssocSet();
@@ -280,13 +289,17 @@ public:
 #ifndef Q_OS_MAC
     bool systrayIntegration() const;
     void setSystrayIntegration(bool enabled);
+    bool minimizeToTrayNotified() const;
+    void setMinimizeToTrayNotified(bool b);
     bool minimizeToTray() const;
     void setMinimizeToTray(bool b);
     bool closeToTray() const;
     void setCloseToTray(bool b);
+    bool closeToTrayNotified() const;
+    void setCloseToTrayNotified(bool b);
     TrayIcon::Style trayIconStyle() const;
     void setTrayIconStyle(TrayIcon::Style style);
-#endif
+#endif // Q_OS_MAC
 
     // Stuff that don't appear in the Options GUI but are saved
     // in the same file.
@@ -330,6 +343,8 @@ public:
     void setRssMainSplitterState(const QByteArray &state);
     QByteArray getSearchTabHeaderState() const;
     void setSearchTabHeaderState(const QByteArray &state);
+    bool getRegexAsFilteringPatternForSearchJob() const;
+    void setRegexAsFilteringPatternForSearchJob(bool checked);
     QStringList getSearchEngDisabled() const;
     void setSearchEngDisabled(const QStringList &engines);
     QString getTorImportLastContentDir() const;
@@ -344,6 +359,8 @@ public:
     void setTransSelFilter(const int &index);
     QByteArray getTransHeaderState() const;
     void setTransHeaderState(const QByteArray &state);
+    bool getRegexAsFilteringPatternForTransferList() const;
+    void setRegexAsFilteringPatternForTransferList(bool checked);
     int getToolbarTextPosition() const;
     void setToolbarTextPosition(const int position);
 
@@ -356,6 +373,8 @@ public:
     void setNetworkCookies(const QList<QNetworkCookie> &cookies);
 
     // SpeedWidget
+    bool isSpeedWidgetEnabled() const;
+    void setSpeedWidgetEnabled(bool enabled);
     int getSpeedWidgetPeriod() const;
     void setSpeedWidgetPeriod(const int period);
     bool getSpeedWidgetGraphEnable(int id) const;

src/base/private/profile_p.cpp

@@ -25,7 +25,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
  */
 
 #include "profile_p.h"

src/base/profile.h

@@ -25,7 +25,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
  */
 
 #ifndef QBT_PROFILE_H

src/base/rss/private/rss_parser.cpp

@@ -435,13 +435,13 @@ namespace
         if (leapSecond)
             second = 59;   // apparently a leap second - validate below, once time zone is known
         int month = 0;
-        for ( ; (month < 12)  &&  (parts[nmonth] != shortMonth[month]); ++month);
+        for ( ; (month < 12) && (parts[nmonth] != shortMonth[month]); ++month);
         int dayOfWeek = -1;
         if (!parts[nwday].isEmpty()) {
             // Look up the weekday name
-            while (++dayOfWeek < 7 && (shortDay[dayOfWeek] != parts[nwday]));
+            while ((++dayOfWeek < 7) && (shortDay[dayOfWeek] != parts[nwday]));
             if (dayOfWeek >= 7)
-                for (dayOfWeek = 0; dayOfWeek < 7 && (longDay[dayOfWeek] != parts[nwday]); ++dayOfWeek);
+                for (dayOfWeek = 0; (dayOfWeek < 7) && (longDay[dayOfWeek] != parts[nwday]); ++dayOfWeek);
         }
 
         //       if (month >= 12 || dayOfWeek >= 7
@@ -450,7 +450,7 @@ namespace
         int i = parts[nyear].size();
         if (i < 4) {
             // It's an obsolete year specification with less than 4 digits
-            year += (i == 2  &&  year < 50) ? 2000 : 1900;
+            year += ((i == 2) && (year < 50)) ? 2000 : 1900;
         }
 
         // Parse the UTC offset part
@@ -473,17 +473,17 @@ namespace
             else {
                 // Check for an obsolete time zone name
                 QByteArray zone = parts[10].toLatin1();
-                if (zone.length() == 1  &&  isalpha(zone[0])  &&  toupper(zone[0]) != 'J') {
+                if ((zone.length() == 1) && (isalpha(zone[0])) && (toupper(zone[0]) != 'J')) {
                     negOffset = true;    // military zone: RFC 2822 treats as '-0000'
                 }
-                else if (zone != "UT" && zone != "GMT") { // treated as '+0000'
+                else if ((zone != "UT") && (zone != "GMT")) { // treated as '+0000'
                     offset = (zone == "EDT")
                             ? -4 * 3600
                             : ((zone == "EST") || (zone == "CDT"))
                               ? -5 * 3600
                               : ((zone == "CST") || (zone == "MDT"))
                                 ? -6 * 3600
-                                : (zone == "MST" || zone == "PDT")
+                                : ((zone == "MST") || (zone == "PDT"))
                                   ? -7 * 3600
                                   : (zone == "PST")
                                     ? -8 * 3600
@@ -502,12 +502,12 @@ namespace
             }
         }
 
-        QDate qdate(year, month + 1, day);   // convert date, and check for out-of-range
-        if (!qdate.isValid())
+        QDate qDate(year, month + 1, day);   // convert date, and check for out-of-range
+        if (!qDate.isValid())
             return QDateTime::currentDateTime();
 
         QTime qTime(hour, minute, second);
-        QDateTime result(qdate, qTime, Qt::UTC);
+        QDateTime result(qDate, qTime, Qt::UTC);
         if (offset)
             result = result.addSecs(-offset);
         if (!result.isValid())
@@ -582,16 +582,6 @@ void Parser::parse_impl(const QByteArray &feedData)
                 .arg(xml.errorString()).arg(xml.lineNumber())
                 .arg(xml.columnNumber()).arg(xml.characterOffset());
     }
-    else {
-        // Sort article list chronologically
-        // NOTE: We don't need to sort it here if articles are always
-        // sorted in fetched XML in reverse chronological order
-        std::sort(m_result.articles.begin(), m_result.articles.end()
-                  , [](const QVariantHash &a1, const QVariantHash &a2)
-        {
-            return a1["date"].toDateTime() < a2["date"].toDateTime();
-        });
-    }
 
     emit finished(m_result);
     m_result.articles.clear(); // clear articles only

src/base/rss/rss_article.cpp

@@ -30,7 +30,6 @@
 
 #include "rss_article.h"
 
-#include <stdexcept>
 #include <QJsonObject>
 #include <QVariant>
 
@@ -73,23 +72,6 @@ Article::Article(Feed *feed, const QVariantHash &varHash)
     , m_isRead(varHash.value(KeyIsRead, false).toBool())
     , m_data(varHash)
 {
-    if (!m_date.isValid())
-        throw std::runtime_error("Bad RSS Article data");
-
-    // If item does not have a guid, fall back to some other identifier
-    if (m_guid.isEmpty())
-        m_guid = varHash.value(KeyTorrentURL).toString();
-    if (m_guid.isEmpty())
-        m_guid = varHash.value(KeyTitle).toString();
-    if (m_guid.isEmpty())
-        throw std::runtime_error("Bad RSS Article data");
-
-    m_data[KeyId] = m_guid;
-
-    if (m_torrentURL.isEmpty()) {
-        m_torrentURL = m_link;
-        m_data[KeyTorrentURL] = m_torrentURL;
-    }
 }
 
 Article::Article(Feed *feed, const QJsonObject &jsonObj)

src/base/rss/rss_autodownloader.cpp

@@ -66,6 +66,7 @@ const QString RulesFileName(QStringLiteral("download_rules.json"));
 
 const QString SettingsKey_ProcessingEnabled(QStringLiteral("RSS/AutoDownloader/EnableProcessing"));
 const QString SettingsKey_SmartEpisodeFilter(QStringLiteral("RSS/AutoDownloader/SmartEpisodeFilter"));
+const QString SettingsKey_DownloadRepacks(QStringLiteral("RSS/AutoDownloader/DownloadRepacks"));
 
 namespace
 {
@@ -240,7 +241,7 @@ void AutoDownloader::importRules(const QByteArray &data, AutoDownloader::RulesFi
 QByteArray AutoDownloader::exportRulesToJSONFormat() const
 {
     QJsonObject jsonObj;
-    for (const auto &rule : copyAsConst(rules()))
+    for (const auto &rule : asConst(rules()))
         jsonObj.insert(rule.name(), rule.toJsonObject());
 
     return QJsonDocument(jsonObj).toJson();
@@ -248,14 +249,14 @@ QByteArray AutoDownloader::exportRulesToJSONFormat() const
 
 void AutoDownloader::importRulesFromJSONFormat(const QByteArray &data)
 {
-    for (const auto &rule : copyAsConst(rulesFromJSON(data)))
+    for (const auto &rule : asConst(rulesFromJSON(data)))
         insertRule(rule);
 }
 
 QByteArray AutoDownloader::exportRulesToLegacyFormat() const
 {
     QVariantHash dict;
-    for (const auto &rule : copyAsConst(rules()))
+    for (const auto &rule : asConst(rules()))
         dict[rule.name()] = rule.toLegacyDict();
 
     QByteArray data;
@@ -275,7 +276,7 @@ void AutoDownloader::importRulesFromLegacyFormat(const QByteArray &data)
     if (in.status() != QDataStream::Ok)
         throw ParsingError(tr("Invalid data format"));
 
-    for (const QVariant &val : qAsConst(dict))
+    for (const QVariant &val : asConst(dict))
         insertRule(AutoDownloadRule::fromLegacyDict(val.toHash()));
 }
 
@@ -310,6 +311,16 @@ void AutoDownloader::setSmartEpisodeFilters(const QStringList &filters)
     m_smartEpisodeRegex.setPattern(regex);
 }
 
+bool AutoDownloader::downloadRepacks() const
+{
+    return SettingsStorage::instance()->loadValue(SettingsKey_DownloadRepacks, true).toBool();
+}
+
+void AutoDownloader::setDownloadRepacks(const bool downloadRepacks)
+{
+    SettingsStorage::instance()->storeValue(SettingsKey_DownloadRepacks, downloadRepacks);
+}
+
 void AutoDownloader::process()
 {
     if (m_processingQueue.isEmpty()) return; // processing was disabled
@@ -362,7 +373,7 @@ void AutoDownloader::addJobForArticle(Article *article)
 
 void AutoDownloader::processJob(const QSharedPointer<ProcessingJob> &job)
 {
-    for (AutoDownloadRule &rule: m_rules) {
+    for (AutoDownloadRule &rule : m_rules) {
         if (!rule.isEnabled()) continue;
         if (!rule.feedURLs().contains(job->feedURL)) continue;
         if (!rule.accepts(job->articleData)) continue;
@@ -424,8 +435,8 @@ void AutoDownloader::loadRules(const QByteArray &data)
 void AutoDownloader::loadRulesLegacy()
 {
     SettingsPtr settings = Profile::instance().applicationSettings(QStringLiteral("qBittorrent-rss"));
-    QVariantHash rules = settings->value(QStringLiteral("download_rules")).toHash();
-    foreach (const QVariant &ruleVar, rules) {
+    const QVariantHash rules = settings->value(QStringLiteral("download_rules")).toHash();
+    for (const QVariant &ruleVar : rules) {
         auto rule = AutoDownloadRule::fromLegacyDict(ruleVar.toHash());
         if (!rule.name().isEmpty())
             insertRule(rule);
@@ -440,7 +451,7 @@ void AutoDownloader::store()
     m_savingTimer.stop();
 
     QJsonObject jsonObj;
-    foreach (auto rule, m_rules)
+    for (const auto &rule : asConst(m_rules))
         jsonObj.insert(rule.name(), rule.toJsonObject());
 
     m_fileStorage->store(RulesFileName, QJsonDocument(jsonObj).toJson());
@@ -462,7 +473,7 @@ void AutoDownloader::resetProcessingQueue()
     m_processingQueue.clear();
     if (!m_processingEnabled) return;
 
-    foreach (Article *article, Session::instance()->rootFolder()->articles()) {
+    for (Article *article : asConst(Session::instance()->rootFolder()->articles())) {
         if (!article->isRead() && !article->torrentUrl().isEmpty())
             addJobForArticle(article);
     }

src/base/rss/rss_autodownloader.h

@@ -85,6 +85,9 @@ namespace RSS
         void setSmartEpisodeFilters(const QStringList &filters);
         QRegularExpression smartEpisodeRegex() const;
 
+        bool downloadRepacks() const;
+        void setDownloadRepacks(bool downloadRepacks);
+
         bool hasRule(const QString &ruleName) const;
         AutoDownloadRule ruleByName(const QString &ruleName) const;
         QList<AutoDownloadRule> rules() const;

src/base/rss/rss_autodownloadrule.cpp

@@ -126,7 +126,7 @@ namespace RSS
         bool smartFilter = false;
         QStringList previouslyMatchedEpisodes;
 
-        mutable QString lastComputedEpisode;
+        mutable QStringList lastComputedEpisodes;
         mutable QHash<QString, QRegularExpression> cachedRegexes;
 
         bool operator==(const AutoDownloadRuleData &other) const
@@ -237,7 +237,7 @@ bool AutoDownloadRule::matchesMustContainExpression(const QString &articleTitle)
 
     // Each expression is either a regex, or a set of wildcards separated by whitespace.
     // Accept if any complete expression matches.
-    for (const QString &expression : qAsConst(m_dataPtr->mustContain)) {
+    for (const QString &expression : asConst(m_dataPtr->mustContain)) {
         // A regex of the form "expr|" will always match, so do the same for wildcards
         if (matchesExpression(articleTitle, expression))
             return true;
@@ -246,14 +246,14 @@ bool AutoDownloadRule::matchesMustContainExpression(const QString &articleTitle)
     return false;
 }
 
-bool AutoDownloadRule::matchesMustNotContainExpression(const QString& articleTitle) const
+bool AutoDownloadRule::matchesMustNotContainExpression(const QString &articleTitle) const
 {
     if (m_dataPtr->mustNotContain.empty())
         return true;
 
     // Each expression is either a regex, or a set of wildcards separated by whitespace.
     // Reject if any complete expression matches.
-    for (const QString &expression : qAsConst(m_dataPtr->mustNotContain)) {
+    for (const QString &expression : asConst(m_dataPtr->mustNotContain)) {
         // A regex of the form "expr|" will always match, so do the same for wildcards
         if (matchesExpression(articleTitle, expression))
             return false;
@@ -262,10 +262,10 @@ bool AutoDownloadRule::matchesMustNotContainExpression(const QString& articleTit
     return true;
 }
 
-bool AutoDownloadRule::matchesEpisodeFilterExpression(const QString& articleTitle) const
+bool AutoDownloadRule::matchesEpisodeFilterExpression(const QString &articleTitle) const
 {
     // Reset the lastComputedEpisode, we don't want to leak it between matches
-    m_dataPtr->lastComputedEpisode.clear();
+    m_dataPtr->lastComputedEpisodes.clear();
 
     if (m_dataPtr->episodeFilter.isEmpty())
         return true;
@@ -332,7 +332,7 @@ bool AutoDownloadRule::matchesEpisodeFilterExpression(const QString& articleTitl
     return false;
 }
 
-bool AutoDownloadRule::matchesSmartEpisodeFilter(const QString& articleTitle) const
+bool AutoDownloadRule::matchesSmartEpisodeFilter(const QString &articleTitle) const
 {
     if (!useSmartFilter())
         return true;
@@ -343,11 +343,35 @@ bool AutoDownloadRule::matchesSmartEpisodeFilter(const QString& articleTitle) co
 
     // See if this episode has been downloaded before
     const bool previouslyMatched = m_dataPtr->previouslyMatchedEpisodes.contains(episodeStr);
-    const bool isRepack = articleTitle.contains("REPACK", Qt::CaseInsensitive) || articleTitle.contains("PROPER", Qt::CaseInsensitive);
-    if (previouslyMatched && !isRepack)
-        return false;
+    if (previouslyMatched) {
+        if (!AutoDownloader::instance()->downloadRepacks())
+            return false;
 
-    m_dataPtr->lastComputedEpisode = episodeStr;
+        // Now see if we've downloaded this particular repack/proper combination
+        const bool isRepack = articleTitle.contains("REPACK", Qt::CaseInsensitive);
+        const bool isProper = articleTitle.contains("PROPER", Qt::CaseInsensitive);
+
+        if (!isRepack && !isProper)
+            return false;
+
+        const QString fullEpisodeStr = QString("%1%2%3").arg(episodeStr,
+                                                             isRepack ? "-REPACK" : "",
+                                                             isProper ? "-PROPER" : "");
+        const bool previouslyMatchedFull = m_dataPtr->previouslyMatchedEpisodes.contains(fullEpisodeStr);
+        if (previouslyMatchedFull)
+            return false;
+
+        m_dataPtr->lastComputedEpisodes.append(fullEpisodeStr);
+
+        // If this is a REPACK and PROPER download, add the individual entries to the list
+        // so we don't download those
+        if (isRepack && isProper) {
+            m_dataPtr->lastComputedEpisodes.append(QString("%1-REPACK").arg(episodeStr));
+            m_dataPtr->lastComputedEpisodes.append(QString("%1-PROPER").arg(episodeStr));
+        }
+    }
+
+    m_dataPtr->lastComputedEpisodes.append(episodeStr);
     return true;
 }
 
@@ -379,10 +403,10 @@ bool AutoDownloadRule::accepts(const QVariantHash &articleData)
 
     setLastMatch(articleData[Article::KeyDate].toDateTime());
 
-    if (!m_dataPtr->lastComputedEpisode.isEmpty()) {
-        // TODO: probably need to add a marker for PROPER/REPACK to avoid duplicate downloads
-        m_dataPtr->previouslyMatchedEpisodes.append(m_dataPtr->lastComputedEpisode);
-        m_dataPtr->lastComputedEpisode.clear();
+    // If there's a matched episode string, add that to the previously matched list
+    if (!m_dataPtr->lastComputedEpisodes.isEmpty()) {
+        m_dataPtr->previouslyMatchedEpisodes.append(m_dataPtr->lastComputedEpisodes);
+        m_dataPtr->lastComputedEpisodes.clear();
     }
 
     return true;
@@ -442,7 +466,7 @@ AutoDownloadRule AutoDownloadRule::fromJsonObject(const QJsonObject &jsonObj, co
     QStringList feedURLs;
     if (feedsVal.isString())
         feedURLs << feedsVal.toString();
-    else foreach (const QJsonValue &urlVal, feedsVal.toArray())
+    else for (const QJsonValue &urlVal : asConst(feedsVal.toArray()))
         feedURLs << urlVal.toString();
     rule.setFeedURLs(feedURLs);
 
@@ -452,7 +476,7 @@ AutoDownloadRule AutoDownloadRule::fromJsonObject(const QJsonObject &jsonObj, co
         previouslyMatched << previouslyMatchedVal.toString();
     }
     else {
-        foreach (const QJsonValue &val, previouslyMatchedVal.toArray())
+        for (const QJsonValue &val : asConst(previouslyMatchedVal.toArray()))
             previouslyMatched << val.toString();
     }
     rule.setPreviouslyMatchedEpisodes(previouslyMatched);
@@ -502,7 +526,7 @@ void AutoDownloadRule::setMustContain(const QString &tokens)
     if (m_dataPtr->useRegex)
         m_dataPtr->mustContain = QStringList() << tokens;
     else
-        m_dataPtr->mustContain = tokens.split("|");
+        m_dataPtr->mustContain = tokens.split('|');
 
     // Check for single empty string - if so, no condition
     if ((m_dataPtr->mustContain.size() == 1) && m_dataPtr->mustContain[0].isEmpty())
@@ -516,7 +540,7 @@ void AutoDownloadRule::setMustNotContain(const QString &tokens)
     if (m_dataPtr->useRegex)
         m_dataPtr->mustNotContain = QStringList() << tokens;
     else
-        m_dataPtr->mustNotContain = tokens.split("|");
+        m_dataPtr->mustNotContain = tokens.split('|');
 
     // Check for single empty string - if so, no condition
     if ((m_dataPtr->mustNotContain.size() == 1) && m_dataPtr->mustNotContain[0].isEmpty())
@@ -605,12 +629,12 @@ int AutoDownloadRule::ignoreDays() const
 
 QString AutoDownloadRule::mustContain() const
 {
-    return m_dataPtr->mustContain.join("|");
+    return m_dataPtr->mustContain.join('|');
 }
 
 QString AutoDownloadRule::mustNotContain() const
 {
-    return m_dataPtr->mustNotContain.join("|");
+    return m_dataPtr->mustNotContain.join('|');
 }
 
 bool AutoDownloadRule::useSmartFilter() const

src/base/rss/rss_feed.cpp

@@ -30,7 +30,9 @@
 
 #include "rss_feed.h"
 
-#include <QCryptographicHash>
+#include <algorithm>
+#include <vector>
+
 #include <QDebug>
 #include <QDir>
 #include <QJsonArray>
@@ -41,6 +43,7 @@
 #include <QUrl>
 
 #include "../asyncfilestorage.h"
+#include "../global.h"
 #include "../logger.h"
 #include "../net/downloadhandler.h"
 #include "../net/downloadmanager.h"
@@ -50,21 +53,30 @@
 #include "rss_article.h"
 #include "rss_session.h"
 
-const QString Str_Url(QStringLiteral("url"));
-const QString Str_Title(QStringLiteral("title"));
-const QString Str_LastBuildDate(QStringLiteral("lastBuildDate"));
-const QString Str_IsLoading(QStringLiteral("isLoading"));
-const QString Str_HasError(QStringLiteral("hasError"));
-const QString Str_Articles(QStringLiteral("articles"));
+const QString KEY_UID(QStringLiteral("uid"));
+const QString KEY_URL(QStringLiteral("url"));
+const QString KEY_TITLE(QStringLiteral("title"));
+const QString KEY_LASTBUILDDATE(QStringLiteral("lastBuildDate"));
+const QString KEY_ISLOADING(QStringLiteral("isLoading"));
+const QString KEY_HASERROR(QStringLiteral("hasError"));
+const QString KEY_ARTICLES(QStringLiteral("articles"));
 
 using namespace RSS;
 
-Feed::Feed(const QString &url, const QString &path, Session *session)
+Feed::Feed(const QUuid &uid, const QString &url, const QString &path, Session *session)
     : Item(path)
     , m_session(session)
+    , m_uid(uid)
     , m_url(url)
 {
-    m_dataFileName = QString("%1.json").arg(Utils::Fs::toValidFileSystemName(m_url, false, QLatin1String("_")));
+    m_dataFileName = QString::fromLatin1(m_uid.toRfc4122().toHex()) + QLatin1String(".json");
+
+    // Move to new file naming scheme (since v4.1.2)
+    const QString legacyFilename {Utils::Fs::toValidFileSystemName(m_url, false, QLatin1String("_"))
+                + QLatin1String(".json")};
+    const QDir storageDir {m_session->dataFileStorage()->storageDir()};
+    if (!QFile::exists(storageDir.absoluteFilePath(m_dataFileName)))
+        QFile::rename(storageDir.absoluteFilePath(legacyFilename), storageDir.absoluteFilePath(m_dataFileName));
 
     m_parser = new Private::Parser(m_lastBuildDate);
     m_parser->moveToThread(m_session->workingThread());
@@ -78,6 +90,8 @@ Feed::Feed(const QString &url, const QString &path, Session *session)
     else
         connect(m_session, &Session::processingStateChanged, this, &Feed::handleSessionProcessingEnabledChanged);
 
+    Net::DownloadManager::instance()->registerSequentialService(Net::ServiceID::fromURL(m_url));
+
     load();
 }
 
@@ -95,7 +109,7 @@ QList<Article *> Feed::articles() const
 void Feed::markAsRead()
 {
     auto oldUnreadCount = m_unreadCount;
-    foreach (Article *article, m_articles) {
+    for (Article *article : asConst(m_articles)) {
         if (!article->isRead()) {
             article->disconnect(this);
             article->markAsRead();
@@ -117,7 +131,7 @@ void Feed::refresh()
 
     // NOTE: Should we allow manually refreshing for disabled session?
 
-    Net::DownloadHandler *handler = Net::DownloadManager::instance()->downloadUrl(m_url);
+    Net::DownloadHandler *handler = Net::DownloadManager::instance()->download({m_url});
     connect(handler
             , static_cast<void (Net::DownloadHandler::*)(const QString &, const QByteArray &)>(&Net::DownloadHandler::downloadFinished)
             , this, &Feed::handleDownloadFinished);
@@ -127,6 +141,11 @@ void Feed::refresh()
     emit stateChanged(this);
 }
 
+QUuid Feed::uid() const
+{
+    return m_uid;
+}
+
 QString Feed::url() const
 {
     return m_url;
@@ -199,47 +218,30 @@ void Feed::handleParsingFinished(const RSS::Private::ParsingResult &result)
 {
     m_hasError = !result.error.isEmpty();
 
+    if (!result.title.isEmpty() && (title() != result.title)) {
+        m_title = result.title;
+        m_dirty = true;
+        emit titleChanged(this);
+    }
+
+    if (!result.lastBuildDate.isEmpty()) {
+        m_lastBuildDate = result.lastBuildDate;
+        m_dirty = true;
+    }
+
     // For some reason, the RSS feed may contain malformed XML data and it may not be
     // successfully parsed by the XML parser. We are still trying to load as many articles
     // as possible until we encounter corrupted data. So we can have some articles here
     // even in case of parsing error.
-    if (!m_hasError || !result.articles.isEmpty()) {
-        if (title() != result.title) {
-            m_title = result.title;
-            emit titleChanged(this);
-        }
-
-        m_lastBuildDate = result.lastBuildDate;
-
-        int newArticlesCount = 0;
-        const QDateTime now {QDateTime::currentDateTime()};
-        for (QVariantHash varHash : result.articles) {
-            // if article has no publication date we use feed update time as a fallback
-            QVariant &articleDate = varHash[Article::KeyDate];
-            if (!articleDate.toDateTime().isValid())
-                articleDate = now;
-
-            try {
-                auto article = new Article(this, varHash);
-                if (addArticle(article))
-                    ++newArticlesCount;
-                else
-                    delete article;
-            }
-            catch (const std::runtime_error&) {}
-        }
-
-        m_dirty = (newArticlesCount > 0);
-        store();
-
-        LogMsg(tr("RSS feed at '%1' updated. Added %2 new articles.")
-               .arg(m_url, QString::number(newArticlesCount)));
-    }
+    const int newArticlesCount = updateArticles(result.articles);
+    store();
 
     if (m_hasError) {
         LogMsg(tr("Failed to parse RSS feed at '%1'. Reason: %2").arg(m_url, result.error)
                , Log::WARNING);
     }
+    LogMsg(tr("RSS feed at '%1' updated. Added %2 new articles.")
+           .arg(url(), QString::number(newArticlesCount)));
 
     m_isLoading = false;
     emit stateChanged(this);
@@ -280,9 +282,9 @@ void Feed::loadArticles(const QByteArray &data)
         return;
     }
 
-    QJsonArray jsonArr = jsonDoc.array();
+    const QJsonArray jsonArr = jsonDoc.array();
     int i = -1;
-    foreach (const QJsonValue &jsonVal, jsonArr) {
+    for (const QJsonValue &jsonVal : jsonArr) {
         ++i;
         if (!jsonVal.isObject()) {
             LogMsg(tr("Couldn't load RSS article '%1#%2'. Invalid data format.").arg(m_url).arg(i)
@@ -302,9 +304,9 @@ void Feed::loadArticles(const QByteArray &data)
 void Feed::loadArticlesLegacy()
 {
     SettingsPtr qBTRSSFeeds = Profile::instance().applicationSettings(QStringLiteral("qBittorrent-rss-feeds"));
-    QVariantHash allOldItems = qBTRSSFeeds->value("old_items").toHash();
+    const QVariantHash allOldItems = qBTRSSFeeds->value("old_items").toHash();
 
-    foreach (const QVariant &var, allOldItems.value(m_url).toList()) {
+    for (const QVariant &var : asConst(allOldItems.value(m_url).toList())) {
         auto hash = var.toHash();
         // update legacy keys
         hash[Article::KeyLink] = hash.take(QLatin1String("news_link"));
@@ -327,7 +329,7 @@ void Feed::store()
     m_savingTimer.stop();
 
     QJsonArray jsonArr;
-    foreach (Article *article, m_articles)
+    for (Article *article :asConst(m_articles))
         jsonArr << article->toJsonObject();
 
     m_session->dataFileStorage()->store(m_dataFileName, QJsonDocument(jsonArr).toJson());
@@ -342,9 +344,7 @@ void Feed::storeDeferred()
 bool Feed::addArticle(Article *article)
 {
     Q_ASSERT(article);
-
-    if (m_articles.contains(article->guid()))
-        return false;
+    Q_ASSERT(!m_articles.contains(article->guid()));
 
     // Insertion sort
     const int maxArticles = m_session->maxArticlesPerFeed();
@@ -359,6 +359,8 @@ bool Feed::addArticle(Article *article)
         increaseUnreadCount();
         connect(article, &Article::read, this, &Feed::handleArticleRead);
     }
+
+    m_dirty = true;
     emit newArticle(article);
 
     if (m_articlesByDate.size() > maxArticles)
@@ -401,12 +403,92 @@ void Feed::downloadIcon()
     // XXX: This works for most sites but it is not perfect
     const QUrl url(m_url);
     auto iconUrl = QString("%1://%2/favicon.ico").arg(url.scheme(), url.host());
-    Net::DownloadHandler *handler = Net::DownloadManager::instance()->downloadUrl(iconUrl, true);
+    Net::DownloadHandler *handler = Net::DownloadManager::instance()->download(
+            Net::DownloadRequest(iconUrl).saveToFile(true));
     connect(handler
             , static_cast<void (Net::DownloadHandler::*)(const QString &, const QString &)>(&Net::DownloadHandler::downloadFinished)
             , this, &Feed::handleIconDownloadFinished);
 }
 
+int Feed::updateArticles(const QList<QVariantHash> &loadedArticles)
+{
+    if (loadedArticles.empty())
+        return 0;
+
+    QDateTime dummyPubDate {QDateTime::currentDateTime()};
+    QVector<QVariantHash> newArticles;
+    newArticles.reserve(loadedArticles.size());
+    for (QVariantHash article : loadedArticles) {
+        QVariant &torrentURL = article[Article::KeyTorrentURL];
+        if (torrentURL.toString().isEmpty())
+            torrentURL = article[Article::KeyLink];
+
+        // If item does not have an ID, fall back to some other identifier.
+        QVariant &localId = article[Article::KeyId];
+        if (localId.toString().isEmpty())
+            localId = article.value(Article::KeyTorrentURL);
+        if (localId.toString().isEmpty())
+            localId = article.value(Article::KeyTitle);
+
+        if (localId.toString().isEmpty())
+            continue;
+
+        // If article has no publication date we use feed update time as a fallback.
+        // To prevent processing of "out-of-limit" articles we must not assign dates
+        // that are earlier than the dates of existing articles.
+        const Article *existingArticle = articleByGUID(localId.toString());
+        if (existingArticle) {
+            dummyPubDate = existingArticle->date().addMSecs(-1);
+            continue;
+        }
+
+        QVariant &articleDate = article[Article::KeyDate];
+        if (!articleDate.toDateTime().isValid())
+            articleDate = dummyPubDate;
+
+        newArticles.append(article);
+    }
+
+    if (newArticles.empty())
+        return 0;
+
+    using ArticleSortAdaptor = QPair<QDateTime, const QVariantHash *>;
+    std::vector<ArticleSortAdaptor> sortData;
+    const QList<Article *> existingArticles = articles();
+    sortData.reserve(existingArticles.size() + newArticles.size());
+    std::transform(existingArticles.begin(), existingArticles.end(), std::back_inserter(sortData)
+                   , [](const Article *article)
+    {
+        return qMakePair(article->date(), nullptr);
+    });
+    std::transform(newArticles.begin(), newArticles.end(), std::back_inserter(sortData)
+                   , [](const QVariantHash &article)
+    {
+        return qMakePair(article[Article::KeyDate].toDateTime(), &article);
+    });
+
+    // Sort article list in reverse chronological order
+    std::sort(sortData.begin(), sortData.end()
+              , [](const ArticleSortAdaptor &a1, const ArticleSortAdaptor &a2)
+    {
+        return (a1.first > a2.first);
+    });
+
+    if (sortData.size() > static_cast<uint>(m_session->maxArticlesPerFeed()))
+        sortData.resize(m_session->maxArticlesPerFeed());
+
+    int newArticlesCount = 0;
+    std::for_each(sortData.crbegin(), sortData.crend(), [this, &newArticlesCount](const ArticleSortAdaptor &a)
+    {
+        if (a.second) {
+            addArticle(new Article {this, *a.second});
+            ++newArticlesCount;
+        }
+    });
+
+    return newArticlesCount;
+}
+
 QString Feed::iconPath() const
 {
     return m_iconPath;
@@ -414,25 +496,21 @@ QString Feed::iconPath() const
 
 QJsonValue Feed::toJsonValue(bool withData) const
 {
-    if (!withData) {
-        // if feed alias is empty we create "reduced" JSON
-        // value for it since its name is equal to its URL
-        return (name() == url() ? "" : url());
-        // if we'll need storing some more properties we should check
-        // for its default values and produce JSON object instead of (if it's required)
-    }
-
-    QJsonArray jsonArr;
-    foreach (Article *article, m_articles)
-        jsonArr << article->toJsonObject();
-
     QJsonObject jsonObj;
-    jsonObj.insert(Str_Url, url());
-    jsonObj.insert(Str_Title, title());
-    jsonObj.insert(Str_LastBuildDate, lastBuildDate());
-    jsonObj.insert(Str_IsLoading, isLoading());
-    jsonObj.insert(Str_HasError, hasError());
-    jsonObj.insert(Str_Articles, jsonArr);
+    jsonObj.insert(KEY_UID, uid().toString());
+    jsonObj.insert(KEY_URL, url());
+
+    if (withData) {
+        jsonObj.insert(KEY_TITLE, title());
+        jsonObj.insert(KEY_LASTBUILDDATE, lastBuildDate());
+        jsonObj.insert(KEY_ISLOADING, isLoading());
+        jsonObj.insert(KEY_HASERROR, hasError());
+
+        QJsonArray jsonArr;
+        for (Article *article : asConst(m_articles))
+            jsonArr << article->toJsonObject();
+        jsonObj.insert(KEY_ARTICLES, jsonArr);
+    }
 
     return jsonObj;
 }

src/base/rss/rss_feed.h

@@ -33,6 +33,7 @@
 #include <QBasicTimer>
 #include <QHash>
 #include <QList>
+#include <QUuid>
 
 #include "rss_item.h"
 
@@ -56,7 +57,7 @@ namespace RSS
 
         friend class Session;
 
-        Feed(const QString &url, const QString &path, Session *session);
+        Feed(const QUuid &uid, const QString &url, const QString &path, Session *session);
         ~Feed() override;
 
     public:
@@ -65,6 +66,7 @@ namespace RSS
         void markAsRead() override;
         void refresh() override;
 
+        QUuid uid() const;
         QString url() const;
         QString title() const;
         QString lastBuildDate() const;
@@ -102,9 +104,11 @@ namespace RSS
         void increaseUnreadCount();
         void decreaseUnreadCount();
         void downloadIcon();
+        int updateArticles(const QList<QVariantHash> &loadedArticles);
 
         Session *m_session;
         Private::Parser *m_parser;
+        const QUuid m_uid;
         const QString m_url;
         QString m_title;
         QString m_lastBuildDate;