Minor changes

fix: build without kwallet

.forgejo/workflows/release.yml

@@ -0,0 +1,45 @@
+name: Squawk Release workflow
+run-name: ${{ gitea.actor }} is running Squawk Release workflow on release ${{ gitea.event.release.tag_name }}
+on:
+  release:
+    types: [published]
+
+jobs:
+  Archlinux:
+    runs-on: archlinux
+    steps:
+      - name: Download the release tarball
+        run: curl -sL ${{ gitea.server_url }}/${{ gitea.repository }}/archive/${{ gitea.event.release.tag_name }}.tar.gz --output tarball.tar.gz
+
+      - name: Calculate SHA256 for the tarball
+        run: echo "tbSum=$(sha256sum tarball.tar.gz | cut -d ' ' -f 1)" >> $GITHUB_ENV
+
+      - name: Unarchive tarball
+        run: tar -xvzf tarball.tar.gz
+
+      - name: Clone the AUR repository
+        run: |
+          echo "${{ secrets.DEPLOY_TO_AUR_PRIVATE_KEY }}" > key
+          chmod 600 key
+          GIT_SSH_COMMAND="ssh -i key -o 'IdentitiesOnly yes' -o 'StrictHostKeyChecking no'" git clone ssh://aur@aur.archlinux.org/squawk.git aur
+          chmod 777 -R aur
+          cd aur
+          git config user.name ${{ secrets.DEPLOY_TO_AUR_USER_NAME }}
+          git config user.email ${{ secrets.DEPLOY_TO_AUR_EMAIL }}
+
+
+      - name: Copy PKGBUILD to the directory
+        run: cp squawk/packaging/Archlinux/PKGBUILD aur/
+
+      - name: Put SHA256 sum to PKGBUILD file, and generate .SRCINFO
+        working-directory: aur
+        run: |
+          sed -i "/sha256sums=/c\sha256sums=('${{ env.tbSum }}')" PKGBUILD
+          sudo -u build makepkg --printsrcinfo > .SRCINFO
+
+      - name: Commit package to aur
+        working-directory: aur
+        run: |
+          git add PKGBUILD .SRCINFO
+          git commit -m "${{ gitea.event.release.body//\"/\\\" }}"
+          GIT_SSH_COMMAND="ssh -i ../key -o 'IdentitiesOnly yes' -o 'StrictHostKeyChecking no'" git push

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "external/qxmpp"]
 	path = external/qxmpp
-	url = https://github.com/qxmpp-project/qxmpp.git
+	url = https://invent.kde.org/libraries/qxmpp/
+[submodule "external/lmdbal"]
+	path = external/lmdbal
+	url = https://git.macaw.me/blue/lmdbal

CHANGELOG.md

@@ -1,5 +1,55 @@
 # Changelog
 
+## Squawk 0.2.4 (UNRELEASED)
+### Bug fixes
+- messages to the mucs get sent once again
+
+### Improvements
+- it's possible to build against Qt 6 now, Qt6 is the default
+- got rid of deprecated SimpleCrypt library
+- look up for proper stanzaID
+
+## Squawk 0.2.3 (February 04, 2024)
+### Bug fixes
+- "Add contact" and "Join conference" menu are enabled once again (pavavno)!
+- availability is now read from the same section of config file it was stored
+- automatic avatars (if a contact doesn't have one) get generated once again
+
+### Improvements
+- deactivated accounts now don't appear in combobox of "Add contact" and "Join conference" dialogues
+- all of the expandable roster items now get saved between launches
+- settings file on the disk is not rewritten every roster element expansion or collapse
+- removed unnecessary own vcard request at sturtup (used to do it to discover my own avatar)
+- vcard window now is Info system and it can display more information
+- reduced vcard request spam in MUCs
+
+### New features
+- now you can enable tray icon from settings!
+- there is a job queue now, this allowes to spread a bit the spam on the server at connection time
+- squawk now queries clients of it's peers, you can see what programs other people use
+
+## Squawk 0.2.2 (May 05, 2022)
+### Bug fixes
+- now when you remove an account it actually gets removed
+- segfault on uninitialized Availability in some rare occasions
+- fixed crash when you open a dialog with someone that has only error messages in archive
+- message height is now calculated correctly on Chinese and Japanese paragraphs
+- the app doesn't crash on SIGINT anymore
+
+### Improvements
+- there is a way to disable an account and it wouldn't connect when you change availability
+- if you cancel password query an account becomes inactive and doesn't annoy you anymore
+- if you filled password field and chose KWallet as a storage Squawk wouldn't ask you again for the same password
+- if left the password field empty and chose KWallet as a storage Squawk will try to get that password from KWallet before asking you to input it
+- accounts now connect to the server asynchronously - if one is stopped on password prompt another is connecting
+- actualized translations, added English localization file
+
+### New features
+- new "About" window with links, license, gratitudes
+- if the authentication failed Squawk will ask again for your password and login
+- now there is an amount of unread messages showing on top of Squawk launcher icon
+- notifications now have buttons to open a conversation or to mark that message as read
+
 ## Squawk 0.2.1 (Apr 02, 2022)
 ### Bug fixes
 - build in release mode now no longer spams warnings

CMakeLists.txt

@@ -1,8 +1,10 @@
-cmake_minimum_required(VERSION 3.4)
-project(squawk VERSION 0.2.1 LANGUAGES CXX)
+cmake_minimum_required(VERSION 3.16)
+project(squawk VERSION 0.2.4 LANGUAGES CXX)
 
 cmake_policy(SET CMP0076 NEW)
+cmake_policy(SET CMP0077 NEW)
 cmake_policy(SET CMP0079 NEW)
+cmake_policy(SET CMP0167 NEW)
 set(CMAKE_CXX_STANDARD 17)
 
 set(CMAKE_AUTOMOC ON)
@@ -27,49 +29,50 @@ add_executable(squawk ${WIN32_FLAG} ${MACOSX_BUNDLE_FLAG})
 target_include_directories(squawk PRIVATE ${CMAKE_SOURCE_DIR})
 
 option(SYSTEM_QXMPP "Use system qxmpp lib" ON)
+option(SYSTEM_LMDBAL "Use system lmdbal lib" ON)
 option(WITH_KWALLET "Build KWallet support module" ON)
 option(WITH_KIO "Build KIO support module" ON)
 option(WITH_KCONFIG "Build KConfig support module" ON)
+option(WITH_OMEMO "Build OMEMO support module" OFF)   #it should be off by default untill I sort the problems out
 
 # Dependencies
-## Qt
-set(QT_VERSION_MAJOR 5)
-find_package(Qt5 COMPONENTS Widgets DBus Gui Xml Network Core REQUIRED)
+## Qt, detect and prefer Qt6 if available
+find_package(Qt6 QUIET CONFIG COMPONENTS Widgets DBus Gui Xml Network Core)
+if (Qt6_FOUND)
+  set(QT_VERSION_MAJOR 6)
+else()
+  find_package(Qt5 REQUIRED CONFIG COMPONENTS Widgets DBus Gui Xml Network Core)
+  set(QT_VERSION_MAJOR 5)
+endif()
+
+message(STATUS "Building against Qt${QT_VERSION_MAJOR}")
+
 find_package(Boost COMPONENTS)
-
 target_include_directories(squawk PRIVATE ${Boost_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5Widgets_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5DBus_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5Gui_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5Xml_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5Network_INCLUDE_DIRS})
-target_include_directories(squawk PRIVATE ${Qt5Core_INCLUDE_DIRS})
 
-## QXmpp
-if (SYSTEM_QXMPP)
-  find_package(QXmpp CONFIG)
-
-  if (NOT QXmpp_FOUND)
-    set(SYSTEM_QXMPP OFF)
-    message("QXmpp package wasn't found, trying to build with bundled QXmpp")
+## OMEMO
+if (WITH_OMEMO)
+  find_package(PkgConfig)
+  if (PKG_CONFIG_FOUND)
+    pkg_check_modules(OMEMO libomemo-c)
+    if (OMEMO_FOUND)
+      target_compile_definitions(squawk PRIVATE WITH_OMEMO)
+      message("Building with support of OMEMO")
+    else ()
+      message("libomemo-c package wasn't found, trying to build without OMEMO support")
+      set(WITH_OMEMO OFF)
+    endif ()
   else ()
-    message("Building with system QXmpp")
+    message("PKG_CONFIG module wasn't found, can not check libomemo-c support, trying to build without OMEMO support")
+    set(WITH_OMEMO OFF)
   endif ()
 endif ()
 
-if (NOT SYSTEM_QXMPP)
-  target_link_libraries(squawk PRIVATE qxmpp)
-  add_subdirectory(external/qxmpp)
-else ()
-  target_link_libraries(squawk PRIVATE QXmpp::QXmpp)
-endif ()
-
 ## KIO
 if (WITH_KIO)
-  find_package(KF5KIO CONFIG)
+  find_package(KF${QT_VERSION_MAJOR}KIO CONFIG)
 
-  if (NOT KF5KIO_FOUND)
+  if (NOT KF${QT_VERSION_MAJOR}KIO_FOUND)
     set(WITH_KIO OFF)
     message("KIO package wasn't found, KIO support modules wouldn't be built")
   else ()
@@ -80,9 +83,9 @@ endif ()
 
 ## KWallet
 if (WITH_KWALLET)
-  find_package(KF5Wallet CONFIG)
+  find_package(KF${QT_VERSION_MAJOR}Wallet CONFIG)
 
-  if (NOT KF5Wallet_FOUND)
+  if (NOT KF${QT_VERSION_MAJOR}Wallet_FOUND)
     set(WITH_KWALLET OFF)
     message("KWallet package wasn't found, KWallet support module wouldn't be built")
   else ()
@@ -91,14 +94,15 @@ if (WITH_KWALLET)
   endif ()
 endif ()
 
+## KConfig
 if (WITH_KCONFIG)
-  find_package(KF5Config CONFIG)
-  if (NOT KF5Config_FOUND)
+  find_package(KF${QT_VERSION_MAJOR}Config CONFIG)
+  if (NOT KF${QT_VERSION_MAJOR}Config_FOUND)
     set(WITH_KCONFIG OFF)
     message("KConfig package wasn't found, KConfig support modules wouldn't be built")
   else()
-    find_package(KF5ConfigWidgets CONFIG)
-    if (NOT KF5ConfigWidgets_FOUND)
+    find_package(KF${QT_VERSION_MAJOR}ConfigWidgets CONFIG)
+    if (NOT KF${QT_VERSION_MAJOR}ConfigWidgets_FOUND)
       set(WITH_KCONFIG OFF)
       message("KConfigWidgets package wasn't found, KConfigWidgets support modules wouldn't be built")
     else()
@@ -109,24 +113,88 @@ if (WITH_KCONFIG)
   endif()
 endif()
 
-## Signal (TODO)
-# find_package(Signal REQUIRED)
+## QXmpp
+if (SYSTEM_QXMPP)
+  if (WITH_OMEMO)
+    find_package(QXmppQt${QT_VERSION_MAJOR} CONFIG COMPONENTS Omemo)
+  else ()
+    find_package(QXmppQt${QT_VERSION_MAJOR} CONFIG)
+  endif ()
 
-## LMDB
-find_package(LMDB REQUIRED)
+  if (NOT QXmppQt${QT_VERSION_MAJOR}_FOUND)
+    set(SYSTEM_QXMPP OFF)
+    message("QXmpp package wasn't found, trying to build with bundled QXmpp")
+  else ()
+    message("Building with system QXmpp")
+  endif ()
+endif ()                #it's endif() + if() and not else() because I want it to have a fallback behaviour
+if (NOT SYSTEM_QXMPP)   #we can fail finding system QXmpp and this way we'll check bundled before failing completely
+  message("Building with bundled QXmpp")
 
-# Linking
-target_link_libraries(squawk PRIVATE Qt5::Core Qt5::Widgets Qt5::DBus Qt5::Network Qt5::Gui Qt5::Xml)
-target_link_libraries(squawk PRIVATE lmdb)
-target_link_libraries(squawk PRIVATE simpleCrypt)
-# Link thread libraries on Linux
+  target_include_directories(squawk PRIVATE ${CMAKE_SOURCE_DIR}/external/qxmpp/src/base)
+  target_include_directories(squawk PRIVATE ${CMAKE_SOURCE_DIR}/external/qxmpp/src/client)
+  target_include_directories(squawk PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/external/qxmpp/src)
+
+  if (WITH_OMEMO)
+    target_include_directories(squawk PRIVATE ${CMAKE_SOURCE_DIR}/external/qxmpp/src/omemo)
+    target_include_directories(squawk PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/external/qxmpp/src/omemo)
+    set(BUILD_OMEMO ON)
+    set(BUILD_TESTS OFF)
+  else ()
+    set(BUILD_OMEMO OFF)
+  endif ()
+  add_subdirectory(external/qxmpp)
+  add_library(QXmpp::QXmpp ALIAS QXmppQt${QT_VERSION_MAJOR})
+  if (WITH_OMEMO)
+    target_include_directories(QXmppOmemoQt${QT_VERSION_MAJOR} PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/external/qxmpp/src)
+    add_library(QXmpp::Omemo ALIAS QXmppOmemoQt${QT_VERSION_MAJOR})
+  endif ()
+endif ()
+
+## LMDBAL
+if (SYSTEM_LMDBAL)
+  find_package(lmdbalqt${QT_VERSION_MAJOR})
+  if (NOT lmdbalqt${QT_VERSION_MAJOR}_FOUND)
+    set(SYSTEM_LMDBAL OFF)
+    message("LMDBAL package wasn't found, trying to build with bundled LMDBAL")
+  else ()
+    message("Building with system LMDBAL")
+  endif ()
+else()
+  message("Building with bundled LMDBAL")
+  set(BUILD_STATIC ON)
+  add_subdirectory(external/lmdbal)
+  add_library(LMDBALQT${QT_VERSION_MAJOR}::LMDBALQT${QT_VERSION_MAJOR} ALIAS LMDBAL)
+endif()
+
+find_package(OpenSSL REQUIRED)
+
+## Linking
+target_link_libraries(squawk
+  PRIVATE
+  Qt${QT_VERSION_MAJOR}::Core
+  Qt${QT_VERSION_MAJOR}::Widgets
+  Qt${QT_VERSION_MAJOR}::DBus
+  Qt${QT_VERSION_MAJOR}::Network
+  Qt${QT_VERSION_MAJOR}::Gui
+  Qt${QT_VERSION_MAJOR}::Xml
+  LMDBALQT${QT_VERSION_MAJOR}::LMDBALQT${QT_VERSION_MAJOR}
+  OpenSSL::Crypto
+  QXmpp::QXmpp
+)
+
+if (WITH_OMEMO)
+  target_link_libraries(squawk PRIVATE QXmpp::Omemo)
+endif ()
+
+## Link thread libraries on Linux
 if(UNIX AND NOT APPLE)
   set(THREADS_PREFER_PTHREAD_FLAG ON)
   find_package(Threads REQUIRED)
   target_link_libraries(squawk PRIVATE Threads::Threads)
 endif()
 
-# Build type
+## Build type
 if (NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE Debug)
 endif ()
@@ -139,7 +207,8 @@ if(CMAKE_COMPILER_IS_GNUCXX)
     list(APPEND COMPILE_OPTIONS -O3)
   endif()
   if (CMAKE_BUILD_TYPE STREQUAL Debug)
-    list(APPEND COMPILE_OPTIONS -g)
+    list(APPEND COMPILE_OPTIONS -O0)
+    list(APPEND COMPILE_OPTIONS -g3)
     list(APPEND COMPILE_OPTIONS -Wall)
     list(APPEND COMPILE_OPTIONS -Wextra)
   endif()
@@ -148,8 +217,13 @@ if(CMAKE_COMPILER_IS_GNUCXX)
   target_compile_options(squawk PRIVATE ${COMPILE_OPTIONS})
 endif(CMAKE_COMPILER_IS_GNUCXX)
 
+# I am not really sure about this solution
+# This should enable plugins to be found in path like /usr/lib/squawk instead of just /usr/lib
+set(PLUGIN_PATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/squawk")
+add_compile_definitions(PLUGIN_PATH="${PLUGIN_PATH}")
+
+add_subdirectory(main)
 add_subdirectory(core)
-add_subdirectory(external/simpleCrypt)
 add_subdirectory(packaging)
 add_subdirectory(plugins)
 add_subdirectory(resources)
@@ -157,13 +231,15 @@ add_subdirectory(shared)
 add_subdirectory(translations)
 add_subdirectory(ui)
 
-# Install the executable
+## Install the executable
 install(TARGETS squawk DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(FILES README.md DESTINATION ${CMAKE_INSTALL_DATADIR}/macaw.me/squawk)
+install(FILES LICENSE.md DESTINATION ${CMAKE_INSTALL_DATADIR}/macaw.me/squawk)
 
 if (CMAKE_BUILD_TYPE STREQUAL "Release")
   if (APPLE)
     add_custom_command(TARGET squawk POST_BUILD COMMENT "Running macdeployqt..."
-      COMMAND "${Qt5Widgets_DIR}/../../../bin/macdeployqt" "${CMAKE_CURRENT_BINARY_DIR}/squawk.app"
+      COMMAND "${Qt${QT_VERSION_MAJOR}Widgets_DIR}/../../../bin/macdeployqt" "${CMAKE_CURRENT_BINARY_DIR}/squawk.app"
     )
   endif(APPLE)
 endif()

LICENSE.md

@@ -595,17 +595,17 @@ pointer to where the full notice is found.
 
 	<one line to give the program's name and a brief idea of what it does.>
 	Copyright (C) <year>  <name of author>
-	
+
 	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 3 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, see <http://www.gnu.org/licenses/>.
 

README.md

@@ -4,14 +4,14 @@
 [![AUR version](https://img.shields.io/aur/version/squawk?style=flat-square)](https://aur.archlinux.org/packages/squawk/)
 [![Liberapay patrons](https://img.shields.io/liberapay/patrons/macaw.me?logo=liberapay&style=flat-square)](https://liberapay.com/macaw.me)
 
-![Squawk screenshot](https://macaw.me/images/squawk/0.2.0.png)
+![Squawk screenshot](https://macaw.me/projects/squawk/0.2.2.png)
 
 ### Prerequisites
 
-- QT 5.12 *(lower versions might work but it wasn't tested)*
-- lmdb
-- CMake 3.4 or higher
+- QT 5 or 6
+- CMake 3.10 or higher
 - qxmpp 1.1.0 or higher
+- LMDBAL (my own [library](https://git.macaw.me/blue/lmdbal) for lmdb)
 - KDE Frameworks: kwallet (optional)
 - KDE Frameworks: KIO (optional)
 - KDE Frameworks: KConfig (optional)
@@ -33,14 +33,49 @@ $ pacaur -S squawk
 
 ### Building
 
-You can also clone the repo and build it from source
+You can also the repo and build it from source
 
 Squawk requires Qt with SSL enabled. It uses CMake as build system.
 
 Please check the prerequisites and install them before installation.
 
+---
+
+There are several ways to build Squawk. The one you need depends on whether you have `qxmpp` and `lmdbal` installed in your system.
+
+#### Building with system dependencies
+
+This is the easiest way but it requires you to have `qxmpp` and `lmdbal` installed as system packages. Here is what you do:
+
+```
+$ git clone https://git.macaw.me/blue/squawk
+$ cd squawk
+$ mkdir build
+$ cd build
+$ cmake ..
+$ cmake --build .
+```
+
+#### Building with bundled qxmpp
+
+If you don't have any of `qxmpp` or `lmdbal` (or both) installed the process is abit mor complicated.
+On the configuration stage you need to enable one or both entries in the square brackets, depending on what package your system lacks.
+
+Here is what you do
+
+```
+$ git clone --recurse-submodules https://git.macaw.me/blue/squawk
+$ cd squawk
+$ mkdir build
+$ cd build
+$ cmake .. [-D SYSTEM_QXMPP=False] [-D SYSTEM_LMDBAL=False]
+$ cmake --build .
+```
+
 #### For Windows (Mingw-w64) build
 
+**Building for windows is not mainteined, but was possible in the past, you can try, but it probably won't work**
+
 You need Qt for mingw64 (MinGW 64-bit) platform when installing Qt.
 
 The best way to acquire library `lmdb` and `boost` is through Msys2.
@@ -49,52 +84,31 @@ First install Msys2, and then install `mingw-w64-x86_64-lmdb` and `mingw-w64-x86
 
 Then you need to provide the cmake cache entry when calling cmake for configuration:
 
-```
-cmake .. -D LMDB_ROOT_DIR:PATH=<Msys2 Mingw64 Root Directory> -D BOOST_ROOT:PATH=<Msys2 Mingw64 Root Directory>
-```
-
 `<Msys2 Mingw64 Root Directory>`: e.g. `C:/msys64/mingw64`.
 
----
-
-There are two ways to build, it depends whether you have qxmpp installed in your system
-
-#### Building with system qxmpp
-
-Here is what you do
-
-```
-$ git clone https://git.macaw.me/blue/squawk
-$ cd squawk
-$ mkdir build
-$ cd build
-$ cmake .. [-D LMDB_ROOT_DIR:PATH=...] [-D BOOST_ROOT:PATH=...]
-$ cmake --build .
-```
-
-#### Building with bundled qxmpp
-
-Here is what you do
-
 ```
 $ git clone --recurse-submodules https://git.macaw.me/blue/squawk
 $ cd squawk
 $ mkdir build
 $ cd build
-$ cmake .. -D SYSTEM_QXMPP=False [-D LMDB_ROOT_DIR:PATH=...] [-D BOOST_ROOT:PATH=...]
+$ cmake .. -D SYSTEM_QXMPP=False -D SYSTEM_LMDBAL=False -D LMDB_ROOT_DIR:PATH=<Msys2 Mingw64 Root Directory> -D BOOST_ROOT:PATH=<Msys2 Mingw64 Root Directory>
 $ cmake --build .
 ```
 
-You can always refer to `appveyor.yml` to see how AppVeyor build squawk.
+You can always refer to `appveyor.yml` to see how AppVeyor build squawk for windows.
 
 ### List of keys
 
-Here is the list of keys you can pass to configuration phase of `cmake ..`. 
+Here is the list of keys you can pass to configuration phase of `cmake ..`:
+
 - `CMAKE_BUILD_TYPE` - `Debug` just builds showing all warnings, `Release` builds with no warnings and applies optimizations (default is `Debug`)
 - `SYSTEM_QXMPP` - `True` tries to link against `qxmpp` installed in the system, `False` builds bundled `qxmpp` library (default is `True`)
+- `SYSTEM_LMDBAL` - `True` tries to link against `LMDABL` installed in the system, `False` builds bundled `LMDBAL` library (default is `True`)
 - `WITH_KWALLET` - `True` builds the `KWallet` capability module if `KWallet` is installed and if not goes to `False`. `False` disables `KWallet` support (default is `True`)
 - `WITH_KIO` - `True` builds the `KIO` capability module if `KIO` is installed and if not goes to `False`. `False` disables `KIO` support (default is `True`)
 - `WITH_KCONFIG` - `True` builds the `KConfig` and `KConfigWidgets` capability module if such packages are installed and if not goes to `False`. `False` disables `KConfig` and `KConfigWidgets` support (default is `True`)
+- `WITH_OMEMO` - `True` builds the OMEMO encryption, requires `qxmpp` of version >= 1.5.0 built with OMEMO support. `False` disables OMEMO support (default is `False`)
+- `QT_VERSION_MAJOR` - `6` builds against Qt 6, `5` builds against Qt 6, corresponding version of lmdbal and qxmpp should be installed (default is `6`)
 
 ## License
 

cmake/FindLMDB.cmake

@@ -1,52 +0,0 @@
-#This file is taken from here https://gitlab.ralph.or.at/causal-rt/causal-cpp/, it was GPLv3 license
-#Thank you so much, mr. Ralph Alexander Bariz, I hope you don't mind me using your code
-
-# Try to find LMDB headers and library.
-#
-# Usage of this module as follows:
-#
-#     find_package(LMDB)
-#
-# Variables used by this module, they can change the default behaviour and need
-# to be set before calling find_package:
-#
-#  LMDB_ROOT_DIR          Set this variable to the root installation of
-#                            LMDB if the module has problems finding the
-#                            proper installation path.
-#
-# Variables defined by this module:
-#
-#  LMDB_FOUND               System has LMDB library/headers.
-#  LMDB_LIBRARIES           The LMDB library.
-#  LMDB_INCLUDE_DIRS        The location of LMDB headers.
-
-find_path(LMDB_ROOT_DIR
-  NAMES include/lmdb.h
-  )
-
-find_library(LMDB_LIBRARIES
-  NAMES liblmdb.a liblmdb.so liblmdb.so.a liblmdb.dll.a # We want lmdb to be static, if possible
-  HINTS ${LMDB_ROOT_DIR}/lib
-  )
-
-add_library(lmdb UNKNOWN IMPORTED)
-set_target_properties(lmdb PROPERTIES
-    IMPORTED_LOCATION ${LMDB_LIBRARIES}
-    )
-
-find_path(LMDB_INCLUDE_DIRS
-  NAMES lmdb.h
-  HINTS ${LMDB_ROOT_DIR}/include
-  )
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(LMDB DEFAULT_MSG
-  LMDB_LIBRARIES
-  LMDB_INCLUDE_DIRS
-  )
-
-mark_as_advanced(
-  LMDB_ROOT_DIR
-  LMDB_LIBRARIES
-  LMDB_INCLUDE_DIRS
-)

cmake/FindSignal.cmake

@@ -1,15 +0,0 @@
-find_path(Signal_INCLUDE_DIR NAMES signal/signal_protocol.h)
-find_library(Signal_LIBRARY signal-protocol-c)
-mark_as_advanced(Signal_INCLUDE_DIR Signal_LIBRARY)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Signal REQUIRED_VARS Signal_LIBRARY Signal_INCLUDE_DIR)
-
-if (Signal_FOUND AND NOT TARGET Signal::Signal)
-  add_library(Signal::Signal UNKNOWN IMPORTED)
-  set_target_properties(Signal::Signal PROPERTIES
-    IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-    IMPORTED_LOCATION "${Signal_LIBRARY}"
-    INTERFACE_INCLUDE_DIRECTORIES "${Signal_INCLUDE_DIR}"
-    )
-endif ()

core/CMakeLists.txt

@@ -3,32 +3,32 @@ if(WIN32)
     set(SIGNALCATCHER_SOURCE signalcatcher_win32.cpp)
 endif(WIN32)
 
-target_sources(squawk PRIVATE
-  account.cpp
-  account.h
-  adapterFuctions.cpp
-  archive.cpp
-  archive.h
-  conference.cpp
-  conference.h
-  contact.cpp
-  contact.h
-  main.cpp
-  networkaccess.cpp
-  networkaccess.h
-  rosteritem.cpp
-  rosteritem.h
-  ${SIGNALCATCHER_SOURCE}
-  signalcatcher.h
-  squawk.cpp
-  squawk.h
-  storage.cpp
-  storage.h
-  urlstorage.cpp
-  urlstorage.h
-  )
+set(SOURCE_FILES
+    account.cpp
+    adapterfunctions.cpp
+    conference.cpp
+    contact.cpp
+    rosteritem.cpp
+    ${SIGNALCATCHER_SOURCE}
+    squawk.cpp
+)
+
+set(HEADER_FILES
+    account.h
+    adapterfunctions.h
+    conference.h
+    contact.h
+    rosteritem.h
+    signalcatcher.h
+    squawk.h
+)
+
+target_sources(squawk PRIVATE ${SOURCE_FILES})
 
 target_include_directories(squawk PRIVATE ${LMDB_INCLUDE_DIRS})
 
 add_subdirectory(handlers)
 add_subdirectory(passwordStorageEngines)
+add_subdirectory(components)
+add_subdirectory(delayManager)
+add_subdirectory(utils)

core/account.h

@@ -15,9 +15,7 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#ifndef CORE_ACCOUNT_H
-#define CORE_ACCOUNT_H
+#pragma once
 
 #include <QObject>
 #include <QCryptographicHash>
@@ -29,9 +27,14 @@
 
 #include <map>
 #include <set>
+#include <list>
 
 #include <QXmppRosterManager.h>
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+#include <QXmppCarbonManagerV2.h>
+#else
 #include <QXmppCarbonManager.h>
+#endif
 #include <QXmppDiscoveryManager.h>
 #include <QXmppMamManager.h>
 #include <QXmppMucManager.h>
@@ -39,32 +42,58 @@
 #include <QXmppBookmarkManager.h>
 #include <QXmppBookmarkSet.h>
 #include <QXmppUploadRequestManager.h>
-#include <QXmppVCardIq.h>
 #include <QXmppVCardManager.h>
 #include <QXmppMessageReceiptManager.h>
+#include <QXmppPubSubManager.h>
 
-#include "shared/shared.h"
+#include <shared/shared.h>
+#include <shared/identity.h>
+#include <shared/info.h>
+#include <shared/clientid.h>
 #include "contact.h"
 #include "conference.h"
-#include "networkaccess.h"
+#include <core/components/networkaccess.h>
+#include <core/delayManager/manager.h>
 
 #include "handlers/messagehandler.h"
 #include "handlers/rosterhandler.h"
+#include "handlers/vcardhandler.h"
+#include "handlers/discoveryhandler.h"
 
-namespace Core
-{
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+    #include <QXmppTrustManager.h>
+    #ifdef WITH_OMEMO
+        #include <QXmppOmemoManager.h>
+        #include "handlers/omemohandler.h"
+    #endif
+    #include "handlers/trusthandler.h"
+#endif
 
-class Account : public QObject
-{
+namespace Core {
+
+class Account : public QObject {
     Q_OBJECT
     friend class MessageHandler;
     friend class RosterHandler;
+    friend class VCardHandler;
+    friend class DiscoveryHandler;
+#ifdef WITH_OMEMO
+    friend class OmemoHandler;
+    friend class TrustHandler;
+#endif
 public:
+    enum class Error {
+        authentication,
+        other,
+        none
+    };
+
     Account(
         const QString& p_login, 
         const QString& p_server, 
         const QString& p_password, 
         const QString& p_name, 
+        bool p_active,
         NetworkAccess* p_net, 
         QObject* parent = 0);
     ~Account();
@@ -76,8 +105,12 @@ public:
     QString getPassword() const;
     QString getResource() const;
     QString getAvatarPath() const;
+    QString getBareJid() const;
+    QString getFullJid() const;
     Shared::Availability getAvailability() const;
     Shared::AccountPassword getPasswordType() const;
+    Error getLastError() const;
+    bool getActive() const;
     
     void setName(const QString& p_name);
     void setLogin(const QString& p_login);
@@ -86,8 +119,8 @@ public:
     void setResource(const QString& p_resource);
     void setAvailability(Shared::Availability avail);
     void setPasswordType(Shared::AccountPassword pt);
-    QString getFullJid() const;
     void sendMessage(const Shared::Message& data);
+    void setActive(bool p_active);
     void requestArchive(const QString& jid, int count, const QString& before);
     void subscribeToContact(const QString& jid, const QString& reason);
     void unsubscribeFromContact(const QString& jid, const QString& reason);
@@ -97,20 +130,24 @@ public:
     void removeContactFromGroupRequest(const QString& jid, const QString& groupName);
     void renameContactRequest(const QString& jid, const QString& newName);
     void requestChangeMessage(const QString& jid, const QString& messageId, const QMap<QString, QVariant>& data);
+    void setContactEncryption(const QString& jid, Shared::EncryptionProtocol value);
     
     void setRoomJoined(const QString& jid, bool joined);
     void setRoomAutoJoin(const QString& jid, bool joined);
     void removeRoomRequest(const QString& jid);
     void addRoomRequest(const QString& jid, const QString& nick, const QString& password, bool autoJoin);
-    void uploadVCard(const Shared::VCard& card);
+    void updateInfo(const Shared::Info& info);
     void resendMessage(const QString& jid, const QString& id);
     void replaceMessage(const QString& originalId, const Shared::Message& data);
+    void invalidatePassword();
+
+    void discoverInfo(const QString& address, const QString& node);
     
 public slots:
     void connect();
     void disconnect();
     void reconnect();
-    void requestVCard(const QString& jid);
+    void requestInfo(const QString& jid);
     
 signals:
     void changed(const QMap<QString, QVariant>& data);
@@ -134,9 +171,12 @@ signals:
     void addRoomParticipant(const QString& jid, const QString& nickName, const QMap<QString, QVariant>& data);
     void changeRoomParticipant(const QString& jid, const QString& nickName, const QMap<QString, QVariant>& data);
     void removeRoomParticipant(const QString& jid, const QString& nickName);
-    void receivedVCard(const QString& jid, const Shared::VCard& card);
+    void infoReady(const Shared::Info& info);
     void uploadFile(const QFileInfo& file, const QUrl& set, const QUrl& get, QMap<QString, QString> headers);
     void uploadFileError(const QString& jid, const QString& messageId, const QString& error);
+    void needPassword();
+    void infoDiscovered(const QString& address, const QString& node, const std::set<Shared::Identity>& identities, const std::set<QString>& features);
+    void pepSupportChanged(Shared::Support support);
     
 private:
     QString name;
@@ -145,7 +185,26 @@ private:
     QXmppConfiguration config;
     QXmppPresence presence;
     Shared::ConnectionState state;
+
+    MessageHandler* mh;
+    RosterHandler* rh;
+    VCardHandler* vh;
+    DiscoveryHandler* dh;
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+    TrustHandler* th;
+#endif
+#ifdef WITH_OMEMO
+    OmemoHandler* oh;
+
+    QXmppOmemoManager* om;
+#endif
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+    QXmppTrustManager* tm;
+    QXmppCarbonManagerV2* cm;
+    QXmppPubSubManager* psm;
+#else
     QXmppCarbonManager* cm;
+#endif
     QXmppMamManager* am;
     QXmppMucManager* mm;
     QXmppBookmarkManager* bm;
@@ -157,16 +216,14 @@ private:
     bool reconnectScheduled;
     QTimer* reconnectTimer;
     
-    std::set<QString> pendingVCardRequests;
-    
-    QString avatarHash;
-    QString avatarType;
-    bool ownVCardRequestInProgress;
     NetworkAccess* network;
+    DelayManager::Manager* delay;
     Shared::AccountPassword passwordType;
-    
-    MessageHandler* mh;
-    RosterHandler* rh;
+    Error lastError;
+    Shared::Support pepSupport;
+    bool active;
+    bool notReadyPassword;
+    bool loadingOmemo;
     
 private slots:
     void onClientStateChange(QXmppClient::State state);
@@ -179,22 +236,13 @@ private slots:
     void onMamResultsReceived(const QString &queryId, const QXmppResultSetReply &resultSetReply, bool complete);
 
     void onMamLog(QXmppLogger::MessageType type, const QString &msg);
-    
-    void onVCardReceived(const QXmppVCardIq& card);
-    void onOwnVCardReceived(const QXmppVCardIq& card);
 
-    void onDiscoveryItemsReceived (const QXmppDiscoveryIq& items);
-    void onDiscoveryInfoReceived (const QXmppDiscoveryIq& info);
     void onContactHistoryResponse(const std::list<Shared::Message>& list, bool last);
   
 private:
     void handleDisconnection();
     void onReconnectTimer();
+    void setPepSupport(Shared::Support support);
+    void runDiscoveryService();
 };
-
-void initializeVCard(Shared::VCard& vCard, const QXmppVCardIq& card);
-void initializeQXmppVCard(QXmppVCardIq& card, const Shared::VCard& vCard);
 }
-
-
-#endif // CORE_ACCOUNT_H

core/adapterfunctions.cpp

@@ -1,5 +1,5 @@
 /*
- * Squawk messenger. 
+ * Squawk messenger.
  * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
  *
  * This program is free software: you can redistribute it and/or modify
@@ -15,10 +15,8 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#ifndef CORE_ADAPTER_FUNCTIONS_H
-#define CORE_ADAPTER_FUNCTIONS_H
 
-#include "account.h"
+#include "adapterfunctions.h"
 
 void Core::initializeVCard(Shared::VCard& vCard, const QXmppVCardIq& card)
 {
@@ -271,5 +269,3 @@ void Core::initializeQXmppVCard(QXmppVCardIq& iq, const Shared::VCard& card) {
     iq.setEmails(emails);
     iq.setPhones(phs);
 }
-
-#endif // CORE_ADAPTER_FUNCTIONS_H

core/adapterfunctions.h

@@ -0,0 +1,47 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef CORE_ADAPTER_FUNCTIONS_H
+#define CORE_ADAPTER_FUNCTIONS_H
+
+#include <QXmppVCardIq.h>
+#include <QXmppTask.h>
+#include <QXmppPromise.h>
+#include <shared/vcard.h>
+
+namespace Core {
+
+void initializeVCard(Shared::VCard& vCard, const QXmppVCardIq& card);
+void initializeQXmppVCard(QXmppVCardIq& card, const Shared::VCard& vCard);
+
+template<typename T>
+QXmppTask<T> makeReadyTask(T &&value) {
+    QXmppPromise<T> promise;
+    promise.finish(std::move(value));
+    return promise.task();
+}
+
+inline QXmppTask<void> makeReadyTask() {
+    QXmppPromise<void> promise;
+    promise.finish();
+    return promise.task();
+}
+
+}
+
+
+#endif // CORE_ADAPTER_FUNCTIONS_H

core/archive.h

@@ -1,197 +0,0 @@
-/*
- * Squawk messenger. 
- * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef CORE_ARCHIVE_H
-#define CORE_ARCHIVE_H
-
-#include <QObject>
-#include <QCryptographicHash>
-#include <QMimeDatabase>
-#include <QMimeType>
-
-#include "shared/message.h"
-#include "shared/exception.h"
-#include <lmdb.h>
-#include <list>
-
-namespace Core {
-
-class Archive : public QObject
-{
-    Q_OBJECT
-public:
-    class AvatarInfo;
-    
-    Archive(const QString& jid, QObject* parent = 0);
-    ~Archive();
-    
-    void open(const QString& account);
-    void close();
-    
-    bool addElement(const Shared::Message& message);
-    unsigned int addElements(const std::list<Shared::Message>& messages);
-    Shared::Message getElement(const QString& id) const;
-    bool hasElement(const QString& id) const;
-    void changeMessage(const QString& id, const QMap<QString, QVariant>& data);
-    Shared::Message oldest();
-    QString oldestId();
-    Shared::Message newest();
-    QString newestId();
-    void clear();
-    long unsigned int size() const;
-    std::list<Shared::Message> getBefore(int count, const QString& id);
-    bool isFromTheBeginning();
-    void setFromTheBeginning(bool is);
-    bool setAvatar(const QByteArray& data, AvatarInfo& info, bool generated = false, const QString& resource = "");
-    AvatarInfo getAvatarInfo(const QString& resource = "") const;
-    bool readAvatarInfo(AvatarInfo& target, const QString& resource = "") const;
-    void readAllResourcesAvatars(std::map<QString, AvatarInfo>& data) const;
-    QString idByStanzaId(const QString& stanzaId) const;
-    QString stanzaIdById(const QString& id) const;
-    
-public:
-    const QString jid;
-    
-public:
-    class Directory: 
-    public Utils::Exception
-    {
-    public:
-        Directory(const std::string& p_path):Exception(), path(p_path){}
-        
-        std::string getMessage() const{return "Can't create directory for database at " + path;}
-    private:
-        std::string path;
-    };
-    
-    class Closed: 
-    public Utils::Exception
-    {
-    public:
-        Closed(const std::string& op, const std::string& acc):Exception(), operation(op), account(acc){}
-        
-        std::string getMessage() const{return "An attempt to perform operation " + operation + " on closed archive for " + account;}
-    private:
-        std::string operation;
-        std::string account;
-    };
-    
-    class NotFound: 
-    public Utils::Exception
-    {
-    public:
-        NotFound(const std::string& k, const std::string& acc):Exception(), key(k), account(acc){}
-        
-        std::string getMessage() const{return "Element for id " + key + " wasn't found in database " + account;}
-    private:
-        std::string key;
-        std::string account;
-    };
-    
-    class Empty: 
-    public Utils::Exception
-    {
-    public:
-        Empty(const std::string& acc):Exception(), account(acc){}
-        
-        std::string getMessage() const{return "An attempt to read ordered elements from database " + account + " but it's empty";}
-    private:
-        std::string account;
-    };
-    
-    class Exist: 
-    public Utils::Exception
-    {
-    public:
-        Exist(const std::string& acc, const std::string& p_key):Exception(), account(acc), key(p_key){}
-        
-        std::string getMessage() const{return "An attempt to insert element " + key + " to database " + account + " but it already has an element with given id";}
-    private:
-        std::string account;
-        std::string key;
-    };
-    
-    class NoAvatar: 
-    public Utils::Exception
-    {
-    public:
-        NoAvatar(const std::string& el, const std::string& res):Exception(), element(el), resource(res){
-            if (resource.size() == 0) {
-                resource = "for himself";
-            }
-        }
-        
-        std::string getMessage() const{return "Element " + element + " has no avatar for " + resource ;}
-    private:
-        std::string element;
-        std::string resource;
-    };
-    
-    class Unknown:
-    public Utils::Exception
-    {
-    public:
-        Unknown(const std::string& acc, const std::string& message):Exception(), account(acc), msg(message){}
-        
-        std::string getMessage() const{return "Unknown error on database " + account + ": " + msg;}
-    private:
-        std::string account;
-        std::string msg;
-    };
-    
-    
-    class AvatarInfo {
-    public:
-        AvatarInfo();
-        AvatarInfo(const QString& type, const QByteArray& hash, bool autogenerated);
-        
-        void deserialize(char* pointer, uint32_t size);
-        void serialize(QByteArray* ba) const;
-        
-        QString type;
-        QByteArray hash;
-        bool autogenerated;
-    };
-    
-private:
-    bool opened;
-    bool fromTheBeginning;
-    MDB_env* environment;
-    MDB_dbi main;           //id to message
-    MDB_dbi order;          //time to id
-    MDB_dbi stats;
-    MDB_dbi avatars;        
-    MDB_dbi sid;            //stanzaId to id
-    
-    bool getStatBoolValue(const std::string& id, MDB_txn* txn);
-    std::string getStatStringValue(const std::string& id, MDB_txn* txn);
-    
-    bool setStatValue(const std::string& id, bool value, MDB_txn* txn);
-    bool setStatValue(const std::string& id, const std::string& value, MDB_txn* txn);
-    bool readAvatarInfo(AvatarInfo& target, const std::string& res, MDB_txn* txn) const;
-    void printOrder();
-    void printKeys();
-    bool dropAvatar(const std::string& resource);
-    Shared::Message getMessage(const std::string& id, MDB_txn* txn) const;
-    Shared::Message getStoredMessage(MDB_txn *txn, MDB_cursor* cursor, MDB_cursor_op op, MDB_val* key, MDB_val* value, int& rc);
-    Shared::Message edge(bool end);
-};
-
-}
-
-#endif // CORE_ARCHIVE_H

core/components/CMakeLists.txt

@@ -0,0 +1,15 @@
+set(SOURCE_FILES
+    networkaccess.cpp
+    clientcache.cpp
+    urlstorage.cpp
+    archive.cpp
+)
+
+set(HEADER_FILES
+    networkaccess.h
+    clientcache.h
+    urlstorage.h
+    archive.h
+)
+
+target_sources(squawk PRIVATE ${SOURCE_FILES})

core/components/archive.cpp

@@ -0,0 +1,419 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "archive.h"
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <QDebug>
+
+Core::Archive::Archive(const QString& account, const QString& p_jid, QObject* parent):
+    QObject(parent),
+    jid(p_jid),
+    account(account),
+    opened(false),
+    db(account + "/" + jid),
+    messages(db.addStorage<QString, Shared::Message>("messages")),
+    order(db.addStorage<uint64_t, QString>("order", true)),
+    stats(db.addStorage<QString, QVariant>("stats")),
+    avatars(db.addStorage<QString, AvatarInfo>("avatars")),
+    stanzaIdToId(db.addStorage<QString, QString>("stanzaIdToId")),
+    cursor(order->createCursor())
+{}
+
+Core::Archive::~Archive() {
+    close();
+}
+
+void Core::Archive::open() {
+    db.open();
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+
+    AvatarInfo info;
+    bool hasAvatar = false;
+    try {
+        avatars->getRecord(jid, info, txn);
+        hasAvatar = true;
+    } catch (const LMDBAL::NotFound& e) {}
+
+    if (!hasAvatar)
+        return;
+
+    QFile ava(db.getPath() + "/" + jid + "." + info.type);
+    if (ava.exists())
+        return;
+
+    try {
+        avatars->removeRecord(jid, txn);
+        txn.commit();
+    } catch (const std::exception& e) {
+        qDebug() << e.what();
+        qDebug() << "error opening archive" << jid << "for account" << account
+        << ". There is supposed to be avatar but the file doesn't exist, couldn't even drop it, it surely will lead to an error";
+    }
+}
+
+void Core::Archive::close() {
+    db.close();
+}
+
+bool Core::Archive::addElement(const Shared::Message& message) {
+    QString id = message.getId();
+    qDebug() << "Adding message with id " << id;
+
+    try {
+        LMDBAL::WriteTransaction txn = db.beginTransaction();
+        messages->addRecord(id, message, txn);
+        order->addRecord(message.getTime().toMSecsSinceEpoch(), id, txn);
+        QString stanzaId = message.getStanzaId();
+        if (!stanzaId.isEmpty())
+            stanzaIdToId->addRecord(stanzaId, id, txn);
+
+        txn.commit();
+        return true;
+    } catch (const std::exception& e) {
+        qDebug() << "Could not add message with id " + id;
+        qDebug() << e.what();
+    }
+
+    return false;
+}
+
+void Core::Archive::clear() {
+    db.drop();
+}
+
+Shared::Message Core::Archive::getElement(const QString& id) const {
+    return messages->getRecord(id);
+}
+
+bool Core::Archive::hasElement(const QString& id) const {
+    return messages->checkRecord(id);
+}
+
+void Core::Archive::changeMessage(const QString& id, const QMap<QString, QVariant>& data) {
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    Shared::Message msg = messages->getRecord(id, txn);
+
+    bool hadStanzaId = !msg.getStanzaId().isEmpty();
+    QDateTime oTime = msg.getTime();
+    bool idChange = msg.change(data);
+    QString newId = msg.getId();
+    QDateTime nTime = msg.getTime();
+
+    bool orderChange = oTime != nTime;
+    if (idChange || orderChange) {
+        if (idChange)
+            messages->removeRecord(id, txn);
+
+        if (orderChange)
+            order->removeRecord(oTime.toMSecsSinceEpoch(), txn);
+
+        order->forceRecord(nTime.toMSecsSinceEpoch(), newId, txn);
+    }
+
+    QString sid = msg.getStanzaId();
+    if (!sid.isEmpty() && (idChange || !hadStanzaId))
+        stanzaIdToId->forceRecord(sid, newId, txn);
+
+    messages->forceRecord(newId, msg, txn);
+    txn.commit();
+}
+
+Shared::Message Core::Archive::newest() const {
+    LMDBAL::Transaction txn = db.beginReadOnlyTransaction();
+
+    try {
+        cursor.open(txn);
+        while (true) {
+            std::pair<uint64_t, QString> pair = cursor.prev();
+            Shared::Message msg = messages->getRecord(pair.second, txn);
+            if (msg.serverStored()) {
+                cursor.close();
+                return msg;
+            }
+        }
+    } catch (...) {
+        cursor.close();
+        throw;
+    }
+}
+
+QString Core::Archive::newestId() const {
+    Shared::Message msg = newest();
+    return msg.getId();
+}
+
+QString Core::Archive::oldestId() const {
+    Shared::Message msg = oldest();
+    return msg.getId();
+}
+
+Shared::Message Core::Archive::oldest() const {
+    LMDBAL::Transaction txn = db.beginReadOnlyTransaction();
+
+    try {
+        cursor.open(txn);
+        while (true) {
+            std::pair<uint64_t, QString> pair = cursor.next();
+            Shared::Message msg = messages->getRecord(pair.second, txn);
+            if (msg.serverStored()) {
+                cursor.close();
+                return msg;
+            }
+        }
+    } catch (...) {
+        cursor.close();
+        throw;
+    }
+}
+
+unsigned int Core::Archive::addElements(const std::list<Shared::Message>& messages) {
+    unsigned int success = 0;
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    for (const Shared::Message& message : messages) {
+        QString id = message.getId();
+        bool added = false;
+        try {
+            Core::Archive::messages->addRecord(id, message, txn);
+            added = true;
+        } catch (const LMDBAL::Exist& e) {}
+
+        if (!added)
+            continue;
+
+        order->addRecord(message.getTime().toMSecsSinceEpoch(), id, txn);
+
+        QString sid = message.getStanzaId();
+        if (!sid.isEmpty())
+            stanzaIdToId->addRecord(sid, id, txn);
+
+        ++success;
+    }
+    txn.commit();
+    return success;
+}
+
+long unsigned int Core::Archive::size() const {
+    return order->count();
+}
+
+std::list<Shared::Message> Core::Archive::getBefore(unsigned int count, const QString& id) {
+    LMDBAL::Transaction txn = db.beginReadOnlyTransaction();
+    std::list<Shared::Message> res;
+    try {
+        cursor.open(txn);
+        if (!id.isEmpty()) {
+            Shared::Message reference = messages->getRecord(id, txn);
+            uint64_t stamp = reference.getTime().toMSecsSinceEpoch();
+            cursor.set(stamp);
+        }
+
+        for (unsigned int i = 0; i < count; ++i) {
+            std::pair<uint64_t, QString> pair;
+            cursor.prev(pair.first, pair.second);
+
+            res.emplace_back();
+            Shared::Message& msg = res.back();
+            messages->getRecord(pair.second, msg, txn);
+        }
+        cursor.close();
+
+        return res;
+    } catch (const LMDBAL::NotFound& e) {
+        cursor.close();
+        if (res.empty())
+            throw e;
+        else
+            return res;
+    } catch (...) {
+        cursor.close();
+        throw;
+    }
+}
+
+bool Core::Archive::isFromTheBeginning() const {
+    try {
+        return stats->getRecord("fromTheBeginning").toBool();
+    } catch (const LMDBAL::NotFound& e) {
+        return false;
+    }
+}
+
+void Core::Archive::setFromTheBeginning(bool is) {
+    stats->forceRecord("fromTheBeginning", is);
+}
+
+Shared::EncryptionProtocol Core::Archive::encryption() const {
+    try {
+        return stats->getRecord("encryption").value<Shared::EncryptionProtocol>();
+    } catch (const LMDBAL::NotFound& e) {
+        return Shared::EncryptionProtocol::none;
+    }
+}
+
+bool Core::Archive::setEncryption(Shared::EncryptionProtocol is) {
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    Shared::EncryptionProtocol current = Shared::EncryptionProtocol::none;
+    try {
+        current = stats->getRecord("encryption", txn).value<Shared::EncryptionProtocol>();
+    } catch (const LMDBAL::NotFound& e) {}
+
+    if (is != current) {
+        stats->forceRecord("encryption", static_cast<uint8_t>(is), txn);
+        txn.commit();
+        return true;
+    }
+
+    return false;
+}
+
+QString Core::Archive::idByStanzaId(const QString& stanzaId) const {
+    return stanzaIdToId->getRecord(stanzaId);
+}
+
+QString Core::Archive::stanzaIdById(const QString& id) const {
+    try {
+        Shared::Message msg = getElement(id);
+        return msg.getStanzaId();
+    } catch (const LMDBAL::NotFound& e) {
+        return QString();
+    }
+}
+
+bool Core::Archive::setAvatar(const QByteArray& data, AvatarInfo& newInfo, bool generated, const QString& resource) {
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    AvatarInfo oldInfo;
+    bool haveAvatar = false;
+    QString res = resource.isEmpty() ? jid : resource;
+    try {
+        avatars->getRecord(res, oldInfo, txn);
+        haveAvatar = true;
+    } catch (const LMDBAL::NotFound& e) {}
+    
+    if (data.size() == 0) {
+        if (!haveAvatar)
+            return false;
+
+        avatars->removeRecord(res, txn);
+        txn.commit();
+        return true;
+    }
+
+    QString currentPath = db.getPath();
+    bool needToRemoveOld = false;
+    QCryptographicHash hash(QCryptographicHash::Sha1);
+    hash.addData(data);
+    QByteArray newHash(hash.result());
+    if (haveAvatar) {
+        if (!generated && !oldInfo.autogenerated && oldInfo.hash == newHash)
+            return false;
+
+        QFile oldAvatar(currentPath + "/" + res + "." + oldInfo.type);
+        if (oldAvatar.exists()) {
+            if (oldAvatar.rename(currentPath + "/" + res + "." + oldInfo.type + ".bak")) {
+                needToRemoveOld = true;
+            } else {
+                qDebug() << "Can't change avatar: couldn't get rid of the old avatar" << oldAvatar.fileName();
+                return false;
+            }
+        }
+    }
+    QMimeDatabase mimedb;
+    QMimeType type = mimedb.mimeTypeForData(data);
+    QString ext = type.preferredSuffix();
+    QFile newAvatar(currentPath + "/" + res + "." + ext);
+    if (!newAvatar.open(QFile::WriteOnly)) {
+        qDebug() << "Can't change avatar: cant open file to write" << newAvatar.fileName() << "rolling back to the previous state";
+        if (needToRemoveOld) {
+            QFile oldAvatar(currentPath + "/" + res + "." + oldInfo.type + ".bak");
+            oldAvatar.rename(currentPath + "/" + res + "." + oldInfo.type);
+        }
+        return false;
+    }
+
+    newAvatar.write(data);
+    newAvatar.close();
+
+    newInfo.type = ext;
+    newInfo.hash = newHash;
+    newInfo.autogenerated = generated;
+    try {
+        avatars->forceRecord(res, newInfo, txn);
+        txn.commit();
+    } catch (...) {
+        qDebug() << "Can't change avatar: couldn't store changes to database for" << newAvatar.fileName() << "rolling back to the previous state";
+        if (needToRemoveOld) {
+            QFile oldAvatar(currentPath + "/" + res + "." + oldInfo.type + ".bak");
+            oldAvatar.rename(currentPath + "/" + res + "." + oldInfo.type);
+        }
+        return false;
+    }
+
+    if (needToRemoveOld) {
+        QFile oldAvatar(currentPath + "/" + res + "." + oldInfo.type + ".bak");
+        oldAvatar.remove();
+    }
+    return true;
+}
+
+bool Core::Archive::readAvatarInfo(Core::Archive::AvatarInfo& target, const QString& resource) const {
+    try {
+        avatars->getRecord(resource.isEmpty() ? jid : resource, target);
+        return true;
+    } catch (const LMDBAL::NotFound& e) {
+        return false;
+    }
+}
+
+void Core::Archive::readAllResourcesAvatars(std::map<QString, AvatarInfo>& data) const {
+    avatars->readAll(data);
+}
+
+Core::Archive::AvatarInfo Core::Archive::getAvatarInfo(const QString& resource) const {
+    return avatars->getRecord(resource);
+}
+
+Core::Archive::AvatarInfo::AvatarInfo():
+    type(),
+    hash(),
+    autogenerated(false)
+{}
+
+Core::Archive::AvatarInfo::AvatarInfo(const QString& p_type, const QByteArray& p_hash, bool p_autogenerated):
+    type(p_type),
+    hash(p_hash),
+    autogenerated(p_autogenerated)
+{}
+
+QDataStream & operator<<(QDataStream& out, const Core::Archive::AvatarInfo& info) {
+    out << info.type;
+    out << info.hash;
+    out << info.autogenerated;
+
+    return out;
+}
+
+QDataStream & operator>>(QDataStream& in, Core::Archive::AvatarInfo& info) {
+    in >> info.type;
+    in >> info.hash;
+    in >> info.autogenerated;
+
+    return in;
+}

core/components/archive.h

@@ -0,0 +1,101 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QObject>
+#include <QCryptographicHash>
+#include <QMimeDatabase>
+#include <QMimeType>
+#include <QDataStream>
+
+#include "shared/enums.h"
+#include "shared/message.h"
+#include "shared/exception.h"
+#include <list>
+
+#include <base.h>
+#include <storage.h>
+#include <cursor.h>
+
+namespace Core {
+
+class Archive : public QObject {
+    Q_OBJECT
+public:
+    class AvatarInfo;
+    
+    Archive(const QString& account, const QString& jid, QObject* parent = 0);
+    ~Archive();
+    
+    void open();
+    void close();
+    
+    bool addElement(const Shared::Message& message);
+    unsigned int addElements(const std::list<Shared::Message>& messages);
+    Shared::Message getElement(const QString& id) const;
+    bool hasElement(const QString& id) const;
+    void changeMessage(const QString& id, const QMap<QString, QVariant>& data);
+    Shared::Message oldest() const;
+    QString oldestId() const;
+    Shared::Message newest() const;
+    QString newestId() const;
+    void clear();
+    long unsigned int size() const;
+    std::list<Shared::Message> getBefore(unsigned int count, const QString& id);
+    bool isFromTheBeginning() const;
+    void setFromTheBeginning(bool is);
+    Shared::EncryptionProtocol encryption() const;
+    bool setEncryption(Shared::EncryptionProtocol value);     //returns true if changed, false otherwise
+    bool setAvatar(const QByteArray& data, AvatarInfo& info, bool generated = false, const QString& resource = "");
+    AvatarInfo getAvatarInfo(const QString& resource = "") const;
+    bool readAvatarInfo(AvatarInfo& target, const QString& resource = "") const;
+    void readAllResourcesAvatars(std::map<QString, AvatarInfo>& data) const;
+    QString idByStanzaId(const QString& stanzaId) const;
+    QString stanzaIdById(const QString& id) const;
+    
+public:
+    const QString jid;
+    const QString account;
+    
+public:
+    class AvatarInfo {
+    public:
+        AvatarInfo();
+        AvatarInfo(const QString& type, const QByteArray& hash, bool autogenerated);
+        
+        QString type;
+        QByteArray hash;
+        bool autogenerated;
+    };
+    
+private:
+    bool opened;
+    LMDBAL::Base db;
+    LMDBAL::Storage<QString, Shared::Message>* messages;
+    LMDBAL::Storage<uint64_t, QString>* order;
+    LMDBAL::Storage<QString, QVariant>* stats;
+    LMDBAL::Storage<QString, AvatarInfo>* avatars;
+    LMDBAL::Storage<QString, QString>* stanzaIdToId;
+    mutable LMDBAL::Cursor<uint64_t, QString> cursor;
+};
+
+}
+
+QDataStream& operator << (QDataStream &out, const Core::Archive::AvatarInfo& info);
+QDataStream& operator >> (QDataStream &in, Core::Archive::AvatarInfo& info);

core/components/clientcache.cpp

@@ -0,0 +1,77 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "clientcache.h"
+
+#include <QDebug>
+
+Core::ClientCache::ClientCache():
+    db("clients"),
+    cache(db.addCache<QString, Shared::ClientInfo>("info")),
+    requested(),
+    specific()
+{
+    db.open();
+}
+
+Core::ClientCache::~ClientCache() {
+    db.close();
+}
+
+void Core::ClientCache::open() {
+    db.open();}
+
+void Core::ClientCache::close() {
+    db.close();}
+
+bool Core::ClientCache::checkClient(const Shared::ClientId& p_id) {
+    QString id = p_id.getId();
+    if (requested.count(id) == 0 && !cache->checkRecord(id)) {
+        requested.emplace(id, p_id);
+        emit requestClientInfo(id);
+        return false;
+    }
+
+    return true;
+}
+
+bool Core::ClientCache::registerClientInfo (
+    const QString& sourceFullJid,
+    const QString& id,
+    const std::set<Shared::Identity>& identities,
+    const std::set<QString>& features)
+{
+    std::map<QString, Shared::ClientInfo>::iterator itr = requested.find(id);
+    if (itr != requested.end()) {
+        Shared::ClientInfo& info = itr->second;
+        info.identities = identities;
+        info.extensions = features;
+
+        bool valid = info.valid();
+        if (valid) {
+            cache->addRecord(id, info);
+        } else {
+            info.specificPresence = sourceFullJid;
+            specific.insert(std::make_pair(sourceFullJid, info));
+        }
+        requested.erase(id);
+        return valid;
+    } else {
+        return false;
+    }
+}

core/components/clientcache.h

@@ -0,0 +1,63 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <map>
+#include <set>
+
+#include <QObject>
+#include <QString>
+
+#include <cache.h>
+
+#include <shared/clientid.h>
+#include <shared/clientinfo.h>
+#include <shared/identity.h>
+
+namespace Core {
+
+class ClientCache : public QObject {
+    Q_OBJECT
+public:
+    ClientCache();
+    ~ClientCache();
+
+    void open();
+    void close();
+
+signals:
+    void requestClientInfo(const QString& id);
+
+public slots:
+    bool checkClient(const Shared::ClientId& id);
+    bool registerClientInfo(
+        const QString& sourceFullJid,
+        const QString& id,
+        const std::set<Shared::Identity>& identities,
+        const std::set<QString>& features
+    );
+
+private:
+    LMDBAL::Base db;
+    LMDBAL::Cache<QString, Shared::ClientInfo>* cache;
+    std::map<QString, Shared::ClientInfo> requested;
+    std::map<QString, Shared::ClientInfo> specific;
+};
+
+}

core/components/networkaccess.cpp

@@ -16,7 +16,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-
 #include <QtWidgets/QApplication>
 #include <QtCore/QDir>
 
@@ -35,13 +34,11 @@ Core::NetworkAccess::NetworkAccess(QObject* parent):
     currentPath = settings.value("downloadsPath").toString();
 }
 
-Core::NetworkAccess::~NetworkAccess()
-{
+Core::NetworkAccess::~NetworkAccess() {
     stop();
 }
 
-void Core::NetworkAccess::downladFile(const QString& url)
-{
+void Core::NetworkAccess::downladFile(const QString& url) {
     std::map<QString, Transfer*>::iterator itr = downloads.find(url);
     if (itr != downloads.end()) {
         qDebug() << "NetworkAccess received a request to download a file" << url << ", but the file is currently downloading, skipping";
@@ -50,27 +47,25 @@ void Core::NetworkAccess::downladFile(const QString& url)
             std::pair<QString, std::list<Shared::MessageInfo>> p = storage.getPath(url);
             if (p.first.size() > 0) {
                 QFileInfo info(p.first);
-                if (info.exists() && info.isFile()) {
+                if (info.exists() && info.isFile())
                     emit downloadFileComplete(p.second, p.first);
-                } else {
+                else
                     startDownload(p.second, url);
-                }
             } else {
                 startDownload(p.second, url);
             }
-        } catch (const Archive::NotFound& e) {
+        } catch (const LMDBAL::NotFound& e) {
             qDebug() << "NetworkAccess received a request to download a file" << url << ", but there is now record of which message uses that file, downloading anyway";
             storage.addFile(url);
             startDownload(std::list<Shared::MessageInfo>(), url);
-        } catch (const Archive::Unknown& e) {
+        } catch (const LMDBAL::Unknown& e) {
             qDebug() << "Error requesting file path:" << e.what();
             emit loadFileError(std::list<Shared::MessageInfo>(), QString("Database error: ") + e.what(), false);
         }
     }
 }
 
-void Core::NetworkAccess::start()
-{
+void Core::NetworkAccess::start() {
     if (!running) {
         manager = new QNetworkAccessManager();
 #if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
@@ -81,8 +76,7 @@ void Core::NetworkAccess::start()
     }
 }
 
-void Core::NetworkAccess::stop()
-{
+void Core::NetworkAccess::stop() {
     if (running) {
         storage.close();
         manager->deleteLater();
@@ -96,8 +90,7 @@ void Core::NetworkAccess::stop()
     }
 }
 
-void Core::NetworkAccess::onDownloadProgress(qint64 bytesReceived, qint64 bytesTotal)
-{
+void Core::NetworkAccess::onDownloadProgress(qint64 bytesReceived, qint64 bytesTotal) {
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     QString url = rpl->url().toString();
     std::map<QString, Transfer*>::const_iterator itr = downloads.find(url);
@@ -115,8 +108,7 @@ void Core::NetworkAccess::onDownloadProgress(qint64 bytesReceived, qint64 bytesT
     }
 }
 
-void Core::NetworkAccess::onDownloadError(QNetworkReply::NetworkError code)
-{
+void Core::NetworkAccess::onDownloadError(QNetworkReply::NetworkError code) {
     qDebug() << "DEBUG: DOWNLOAD ERROR";
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     qDebug() << rpl->errorString();
@@ -134,12 +126,11 @@ void Core::NetworkAccess::onDownloadError(QNetworkReply::NetworkError code)
     }
 }
 
-void Core::NetworkAccess::onDownloadSSLError(const QList<QSslError>& errors)
-{
+void Core::NetworkAccess::onDownloadSSLError(const QList<QSslError>& errors) {
     qDebug() << "DEBUG: DOWNLOAD SSL ERRORS";
-    for (const QSslError& err : errors) {
+    for (const QSslError& err : errors)
         qDebug() << err.errorString();
-    }
+
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     QString url = rpl->url().toString();
     std::map<QString, Transfer*>::const_iterator itr = downloads.find(url);
@@ -154,9 +145,7 @@ void Core::NetworkAccess::onDownloadSSLError(const QList<QSslError>& errors)
     }
 }
 
-
-QString Core::NetworkAccess::getErrorText(QNetworkReply::NetworkError code)
-{
+QString Core::NetworkAccess::getErrorText(QNetworkReply::NetworkError code) {
     QString errorText("");
     switch (code) {
         case QNetworkReply::NoError:
@@ -280,8 +269,7 @@ QString Core::NetworkAccess::getErrorText(QNetworkReply::NetworkError code)
 }
 
 
-void Core::NetworkAccess::onDownloadFinished()
-{
+void Core::NetworkAccess::onDownloadFinished() {
     qDebug() << "DEBUG: DOWNLOAD FINISHED";
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     QString url = rpl->url().toString();
@@ -296,11 +284,11 @@ void Core::NetworkAccess::onDownloadFinished()
             QStringList hops = url.split("/");
             QString fileName = hops.back();
             QString jid;
-            if (dwn->messages.size() > 0) {
+            if (dwn->messages.size() > 0)
                 jid = dwn->messages.front().jid;
-            } else {
+            else
                 qDebug() << "An attempt to save the file but it doesn't seem to belong to any message, download is definately going to be broken";
-            }
+
             QString path = prepareDirectory(jid);
             if (path.size() > 0) {
                 path = checkFileName(fileName, path);
@@ -319,11 +307,10 @@ void Core::NetworkAccess::onDownloadFinished()
                 err = "Couldn't prepare a directory for file";
             }
             
-            if (path.size() > 0) {
+            if (path.size() > 0)
                 emit downloadFileComplete(dwn->messages, path);
-            } else {
+            else
                 emit loadFileError(dwn->messages, "Error saving file " + url + "; " + err, false);
-            }
         }
         
         dwn->reply->deleteLater();
@@ -332,8 +319,7 @@ void Core::NetworkAccess::onDownloadFinished()
     }
 }
 
-void Core::NetworkAccess::startDownload(const std::list<Shared::MessageInfo>& msgs, const QString& url)
-{
+void Core::NetworkAccess::startDownload(const std::list<Shared::MessageInfo>& msgs, const QString& url) {
     Transfer* dwn = new Transfer({msgs, 0, 0, true, "", url, 0});
     QNetworkRequest req(url);
     dwn->reply = manager->get(req);
@@ -349,8 +335,7 @@ void Core::NetworkAccess::startDownload(const std::list<Shared::MessageInfo>& ms
     emit loadFileProgress(dwn->messages, 0, false);
 }
 
-void Core::NetworkAccess::onUploadError(QNetworkReply::NetworkError code)
-{
+void Core::NetworkAccess::onUploadError(QNetworkReply::NetworkError code) {
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     QString url = rpl->url().toString();
     std::map<QString, Transfer*>::const_iterator itr = uploads.find(url);
@@ -368,8 +353,7 @@ void Core::NetworkAccess::onUploadError(QNetworkReply::NetworkError code)
     }
 }
 
-void Core::NetworkAccess::onUploadFinished()
-{
+void Core::NetworkAccess::onUploadFinished() {
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     QString url = rpl->url().toString();
     std::map<QString, Transfer*>::const_iterator itr = uploads.find(url);
@@ -389,20 +373,16 @@ void Core::NetworkAccess::onUploadFinished()
 
                     // Copy {TEMPDIR}/squawk_img_attach_XXXXXX.png to Download folder
                     bool copyResult = QFile::copy(upl->path, Shared::resolvePath(newPath));
-
-                    if (copyResult) {
-                        // Change storage
-                        upl->path = newPath;
-                    } else {
+                    if (copyResult)
+                        upl->path = newPath;  // Change storage
+                    else
                         err = "copying to " + newPath + " failed";
-                    }
                 } else {
                     err = "Couldn't prepare a directory for file";
                 }
 
-                if (err.size() != 0) {
+                if (err.size() != 0)
                     qDebug() << "failed to copy temporary upload file " << upl->path << " to download folder:" << err;
-                }
             }
 
             storage.addFile(upl->messages, upl->url, upl->path);
@@ -417,8 +397,7 @@ void Core::NetworkAccess::onUploadFinished()
     }
 }
 
-void Core::NetworkAccess::onUploadProgress(qint64 bytesReceived, qint64 bytesTotal)
-{
+void Core::NetworkAccess::onUploadProgress(qint64 bytesReceived, qint64 bytesTotal) {
     QNetworkReply* rpl = static_cast<QNetworkReply*>(sender());
     QString url = rpl->url().toString();
     std::map<QString, Transfer*>::const_iterator itr = uploads.find(url);
@@ -436,13 +415,12 @@ void Core::NetworkAccess::onUploadProgress(qint64 bytesReceived, qint64 bytesTot
     }
 }
 
-QString Core::NetworkAccess::getFileRemoteUrl(const QString& path)
-{
+QString Core::NetworkAccess::getFileRemoteUrl(const QString& path) {
     QString p = Shared::squawkifyPath(path);
     
     try {
         p = storage.getUrl(p);
-    } catch (const Archive::NotFound& err) {
+    } catch (const LMDBAL::NotFound& err) {
         p = "";
     } catch (...) {
         throw;
@@ -451,8 +429,13 @@ QString Core::NetworkAccess::getFileRemoteUrl(const QString& path)
     return p;
 }
 
-void Core::NetworkAccess::uploadFile(const Shared::MessageInfo& info, const QString& path, const QUrl& put, const QUrl& get, const QMap<QString, QString> headers)
-{
+void Core::NetworkAccess::uploadFile(
+    const Shared::MessageInfo& info,
+    const QString& path,
+    const QUrl& put,
+    const QUrl& get,
+    const QMap<QString, QString> headers
+) {
     QFile* file = new QFile(path);
     Transfer* upl = new Transfer({{info}, 0, 0, true, path, get.toString(), file});
     QNetworkRequest req(put);
@@ -479,22 +462,18 @@ void Core::NetworkAccess::uploadFile(const Shared::MessageInfo& info, const QStr
     }
 }
 
-void Core::NetworkAccess::registerFile(const QString& url, const QString& account, const QString& jid, const QString& id)
-{
+void Core::NetworkAccess::registerFile(const QString& url, const QString& account, const QString& jid, const QString& id) {
     storage.addFile(url, account, jid, id);
     std::map<QString, Transfer*>::iterator itr = downloads.find(url);
-    if (itr != downloads.end()) {
+    if (itr != downloads.end())
         itr->second->messages.emplace_back(account, jid, id);   //TODO notification is going to happen the next tick, is that okay?
-    }
 }
 
-void Core::NetworkAccess::registerFile(const QString& url, const QString& path, const QString& account, const QString& jid, const QString& id)
-{
+void Core::NetworkAccess::registerFile(const QString& url, const QString& path, const QString& account, const QString& jid, const QString& id) {
     storage.addFile(url, path, account, jid, id);
 }
 
-bool Core::NetworkAccess::checkAndAddToUploading(const QString& acc, const QString& jid, const QString id, const QString path)
-{
+bool Core::NetworkAccess::checkAndAddToUploading(const QString& acc, const QString& jid, const QString id, const QString path) {
     for (const std::pair<const QString, Transfer*>& pair : uploads) {
         Transfer* info = pair.second;
         if (pair.second->path == path) {
@@ -516,8 +495,7 @@ bool Core::NetworkAccess::checkAndAddToUploading(const QString& acc, const QStri
     return false;
 }
 
-QString Core::NetworkAccess::prepareDirectory(const QString& jid)
-{
+QString Core::NetworkAccess::prepareDirectory(const QString& jid) {
     QString path = currentPath;
     QString addition;
     if (jid.size() > 0) {
@@ -529,25 +507,23 @@ QString Core::NetworkAccess::prepareDirectory(const QString& jid)
     
     if (!location.exists()) {
         bool res = location.mkpath(path);
-        if (!res) {
+        if (!res)
             return "";
-        } else {
+        else
             return "squawk://" + addition;
-        }
     }
     return "squawk://" + addition;
 }
 
-QString Core::NetworkAccess::checkFileName(const QString& name, const QString& path)
-{
+QString Core::NetworkAccess::checkFileName(const QString& name, const QString& path) {
     QStringList parts = name.split(".");
     QString suffix("");
     QStringList::const_iterator sItr = parts.begin();
     QString realName = *sItr;
     ++sItr;
-    for (QStringList::const_iterator sEnd = parts.end(); sItr != sEnd; ++sItr) {
+    for (QStringList::const_iterator sEnd = parts.end(); sItr != sEnd; ++sItr)
         suffix += "." + (*sItr);
-    }
+
     QString postfix("");
     QString resolvedPath = Shared::resolvePath(path);
     QString count("");
@@ -562,28 +538,23 @@ QString Core::NetworkAccess::checkFileName(const QString& name, const QString& p
     return path + QDir::separator() + realName + count + suffix;
 }
 
-QString Core::NetworkAccess::addMessageAndCheckForPath(const QString& url, const QString& account, const QString& jid, const QString& id)
-{
+QString Core::NetworkAccess::addMessageAndCheckForPath(const QString& url, const QString& account, const QString& jid, const QString& id) {
     return storage.addMessageAndCheckForPath(url, account, jid, id);
 }
 
-std::list<Shared::MessageInfo> Core::NetworkAccess::reportPathInvalid(const QString& path)
-{
+std::list<Shared::MessageInfo> Core::NetworkAccess::reportPathInvalid(const QString& path) {
     return storage.deletedFile(path);
 }
 
-void Core::NetworkAccess::moveFilesDirectory(const QString& newPath)
-{
+void Core::NetworkAccess::moveFilesDirectory(const QString& newPath) {
     QDir dir(currentPath);
     bool success = true;
     qDebug() << "moving" << currentPath << "to" << newPath;
-    for (QFileInfo fileInfo : dir.entryList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System)) {
-        QString fileName = fileInfo.fileName();
+    for (QString fileName : dir.entryList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System))
         success = dir.rename(fileName, newPath + QDir::separator() + fileName) && success;
-    }
 
-    if (!success) {
+    if (!success)
         qDebug() << "couldn't move downloads directory, most probably downloads will be broken";
-    }
+
     currentPath = newPath;
 }

core/components/networkaccess.h

@@ -16,8 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CORE_NETWORKACCESS_H
-#define CORE_NETWORKACCESS_H
+#pragma once
 
 #include <QObject>
 #include <QNetworkAccessManager>
@@ -30,18 +29,13 @@
 
 #include <set>
 
+#include <shared/pathcheck.h>
 #include "urlstorage.h"
-#include "shared/pathcheck.h"
 
 namespace Core {
 
-/**
- * @todo write docs
- */
-
 //TODO Need to describe how to get rid of records when file is no longer reachable;
-class NetworkAccess : public QObject
-{
+class NetworkAccess : public QObject {
     Q_OBJECT
     struct Transfer;
 public:
@@ -104,5 +98,3 @@ private:
 };
 
 }
-
-#endif // CORE_NETWORKACCESS_H

core/components/urlstorage.cpp

@@ -0,0 +1,252 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019 Yury Gubich <blue@macaw.me>
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QStandardPaths>
+#include <QDir>
+#include <QDebug>
+
+#include "urlstorage.h"
+
+Core::UrlStorage::UrlStorage(const QString& p_name):
+    base(p_name),
+    urlToInfo(base.addStorage<QString, UrlInfo>("urlToInfo")),
+    pathToUrl(base.addStorage<QString, QString>("pathToUrl"))
+{}
+
+Core::UrlStorage::~UrlStorage() {
+    close();
+}
+
+void Core::UrlStorage::open() {
+    base.open();
+}
+
+void Core::UrlStorage::close() {
+    base.close();
+}
+
+void Core::UrlStorage::writeInfo(const QString& key, const Core::UrlStorage::UrlInfo& info, bool overwrite) {
+    LMDBAL::WriteTransaction txn = base.beginTransaction();
+    writeInfo(key, info, txn, overwrite);
+    txn.commit();
+}
+
+void Core::UrlStorage::writeInfo(const QString& key, const Core::UrlStorage::UrlInfo& info, const LMDBAL::WriteTransaction& txn, bool overwrite) {
+    if (overwrite)
+        urlToInfo->forceRecord(key, info, txn);
+    else
+        urlToInfo->addRecord(key, info, txn);
+    
+    if (info.hasPath())
+        pathToUrl->forceRecord(info.getPath(), key, txn);
+}
+
+void Core::UrlStorage::addFile(const QString& url) {
+    addToInfo(url, "", "", "");
+}
+
+void Core::UrlStorage::addFile(const QString& url, const QString& path) {
+    addToInfo(url, "", "", "", path);
+}
+
+void Core::UrlStorage::addFile(const QString& url, const QString& account, const QString& jid, const QString& id) {
+    addToInfo(url, account, jid, id);
+}
+
+void Core::UrlStorage::addFile(const QString& url, const QString& path, const QString& account, const QString& jid, const QString& id) {
+    addToInfo(url, account, jid, id, path);
+}
+
+void Core::UrlStorage::addFile(const std::list<Shared::MessageInfo>& msgs, const QString& url, const QString& path) {
+    UrlInfo info (path, msgs);
+    writeInfo(url, info, true);
+}
+
+QString Core::UrlStorage::addMessageAndCheckForPath(const QString& url, const QString& account, const QString& jid, const QString& id){
+    return addToInfo(url, account, jid, id).getPath();
+}
+
+Core::UrlStorage::UrlInfo Core::UrlStorage::addToInfo(
+    const QString& url,
+    const QString& account,
+    const QString& jid,
+    const QString& id,
+    const QString& path
+) {
+    UrlInfo info;
+    LMDBAL::WriteTransaction txn = base.beginTransaction();
+    
+    try {
+        urlToInfo->getRecord(url, info, txn);
+    } catch (const LMDBAL::NotFound& e) {}
+    
+    bool pathChange = false;
+    bool listChange = false;
+    if (path != "-s") {
+        if (info.getPath() != path) {
+            info.setPath(path);
+            pathChange = true;
+        }
+    }
+    
+    if (account.size() > 0 && jid.size() > 0 && id.size() > 0)
+        listChange = info.addMessage(account, jid, id);
+
+    if (pathChange || listChange) {
+        writeInfo(url, info, txn, true);
+        txn.commit();
+    }
+    
+    return info;
+}
+
+std::list<Shared::MessageInfo> Core::UrlStorage::setPath(const QString& url, const QString& path) {
+    std::list<Shared::MessageInfo> list;
+    LMDBAL::WriteTransaction txn = base.beginTransaction();
+    UrlInfo info;
+    
+    try {
+        urlToInfo->getRecord(url, info, txn);
+        info.getMessages(list);
+    } catch (const LMDBAL::NotFound& e) {}
+    
+    info.setPath(path);
+    writeInfo(url, info, txn, true);
+    txn.commit();
+    
+    return list;
+}
+
+std::list<Shared::MessageInfo> Core::UrlStorage::removeFile(const QString& url) {
+    std::list<Shared::MessageInfo> list;
+    LMDBAL::WriteTransaction txn = base.beginTransaction();
+    UrlInfo info;
+    
+    urlToInfo->getRecord(url, info, txn);
+    urlToInfo->removeRecord(url, txn);
+    info.getMessages(list);
+
+    if (info.hasPath())
+        pathToUrl->removeRecord(info.getPath(), txn);
+
+    txn.commit();
+    
+    return list;
+}
+
+std::list<Shared::MessageInfo> Core::UrlStorage::deletedFile(const QString& path) {
+    std::list<Shared::MessageInfo> list;
+    LMDBAL::WriteTransaction txn = base.beginTransaction();
+    
+    QString url = pathToUrl->getRecord(path, txn);
+    pathToUrl->removeRecord(path, txn);
+
+    UrlInfo info = urlToInfo->getRecord(url, txn);
+    info.getMessages(list);
+    info.setPath(QString());
+    urlToInfo->changeRecord(url, info, txn);
+
+    txn.commit();
+    
+    return list;
+}
+
+QString Core::UrlStorage::getUrl(const QString& path) {
+    return pathToUrl->getRecord(path);
+}
+
+std::pair<QString, std::list<Shared::MessageInfo>> Core::UrlStorage::getPath(const QString& url) {
+    UrlInfo info = urlToInfo->getRecord(url);
+    std::list<Shared::MessageInfo> container;
+    info.getMessages(container);
+    return std::make_pair(info.getPath(), container);
+}
+
+Core::UrlStorage::UrlInfo::UrlInfo():
+    localPath(),
+    messages() {}
+
+Core::UrlStorage::UrlInfo::UrlInfo(const QString& path):
+    localPath(path),
+    messages() {}
+ 
+Core::UrlStorage::UrlInfo::UrlInfo(const QString& path, const std::list<Shared::MessageInfo>& msgs):
+    localPath(path),
+    messages(msgs) {}
+ 
+Core::UrlStorage::UrlInfo::~UrlInfo() {}
+ 
+bool Core::UrlStorage::UrlInfo::addMessage(const QString& acc, const QString& jid, const QString& id) {
+    for (const Shared::MessageInfo& info : messages) {
+        if (info.account == acc && info.jid == jid && info.messageId == id)
+            return false;
+    }
+    messages.emplace_back(acc, jid, id);
+    return true;
+}
+
+void Core::UrlStorage::UrlInfo::serialize(QDataStream& data) const {
+    data << localPath;
+    std::list<Shared::MessageInfo>::size_type size = messages.size();
+    data << quint32(size);
+    for (const Shared::MessageInfo& info : messages) {
+        data << info.account;
+        data << info.jid;
+        data << info.messageId;
+    }
+}
+
+QDataStream & operator << (QDataStream& in, const Core::UrlStorage::UrlInfo& info) {
+    info.serialize(in);
+    return in;
+}
+
+QDataStream & operator >> (QDataStream& out, Core::UrlStorage::UrlInfo& info) {
+    info.deserialize(out);
+    return out;
+}
+
+void Core::UrlStorage::UrlInfo::deserialize(QDataStream& data) {
+    data >> localPath;
+    quint32 size;
+    data >> size;
+    for (quint32 i = 0; i < size; ++i) {
+        messages.emplace_back();
+        Shared::MessageInfo& info = messages.back();
+        data >> info.account;
+        data >> info.jid;
+        data >> info.messageId;
+    }
+}
+
+void Core::UrlStorage::UrlInfo::getMessages(std::list<Shared::MessageInfo>& container) const {
+    for (const Shared::MessageInfo& info : messages)
+        container.emplace_back(info);
+}
+
+QString Core::UrlStorage::UrlInfo::getPath() const {
+    return localPath;
+}
+
+bool Core::UrlStorage::UrlInfo::hasPath() const {
+    return localPath.size() > 0;
+}
+
+void Core::UrlStorage::UrlInfo::setPath(const QString& path) {
+    localPath = path;
+}

core/components/urlstorage.h

@@ -16,25 +16,23 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CORE_URLSTORAGE_H
-#define CORE_URLSTORAGE_H
+#pragma once
 
 #include <QString>
 #include <QDataStream>
-#include <lmdb.h>
+
 #include <list>
 
-#include "archive.h"
+#include <storage.h>
+
 #include <shared/messageinfo.h>
 
 namespace Core {
 
-/**
- * @todo write docs
- */
-class UrlStorage
-{
+class UrlStorage {
+public:
     class UrlInfo;
+
 public:
     UrlStorage(const QString& name);
     ~UrlStorage();
@@ -55,20 +53,16 @@ public:
     std::pair<QString, std::list<Shared::MessageInfo>> getPath(const QString& url);
     
 private:
-    QString name;
-    bool opened;
-    MDB_env* environment;
-    MDB_dbi base;
-    MDB_dbi map;
+    LMDBAL::Base base;
+    LMDBAL::Storage<QString, UrlInfo>* urlToInfo;
+    LMDBAL::Storage<QString, QString>* pathToUrl;
     
 private:
     void writeInfo(const QString& key, const UrlInfo& info, bool overwrite = false);
-    void writeInfo(const QString& key, const UrlInfo& info, MDB_txn* txn, bool overwrite = false);
-    void readInfo(const QString& key, UrlInfo& info);
-    void readInfo(const QString& key, UrlInfo& info, MDB_txn* txn);
+    void writeInfo(const QString& key, const UrlInfo& info, const LMDBAL::WriteTransaction& txn, bool overwrite = false);
     UrlInfo addToInfo(const QString& url, const QString& account, const QString& jid, const QString& id, const QString& path = "-s");
     
-private:
+public:
     class UrlInfo {
     public:
         UrlInfo(const QString& path);
@@ -96,4 +90,5 @@ private:
 
 }
 
-#endif // CORE_URLSTORAGE_H
+QDataStream& operator >> (QDataStream &in, Core::UrlStorage::UrlInfo& info);
+QDataStream& operator << (QDataStream &out, const Core::UrlStorage::UrlInfo& info);

core/conference.cpp

@@ -42,57 +42,48 @@ Core::Conference::Conference(const QString& p_jid, const QString& p_account, boo
     connect(room, &QXmppMucRoom::error, this, &Conference::onRoomError);
     
     room->setNickName(nick);
-    if (autoJoin) {
+    if (autoJoin)
         room->join();
-    }
     
     archive->readAllResourcesAvatars(exParticipants);
 }
 
-Core::Conference::~Conference()
-{
-    if (joined) {
+Core::Conference::~Conference(){
+    if (joined)
         room->leave();
-    }
+
     room->deleteLater();
 }
 
-QString Core::Conference::getNick() const
-{
+QString Core::Conference::getNick() const {
     return nick;
 }
 
-bool Core::Conference::getAutoJoin()
-{
+bool Core::Conference::getAutoJoin() const {
     return autoJoin;
 }
 
-bool Core::Conference::getJoined() const
-{
+bool Core::Conference::getJoined() const {
     return joined;
 }
 
-void Core::Conference::setJoined(bool p_joined)
-{
+void Core::Conference::setJoined(bool p_joined) {
     if (joined != p_joined) {
-        if (p_joined) {
+        if (p_joined)
             room->join();
-        } else {
+        else
             room->leave();
-        }
     }
 }
 
-void Core::Conference::setAutoJoin(bool p_autoJoin)
-{
+void Core::Conference::setAutoJoin(bool p_autoJoin) {
     if (autoJoin != p_autoJoin) {
         autoJoin = p_autoJoin;
         emit autoJoinChanged(autoJoin);
     }
 }
 
-void Core::Conference::setNick(const QString& p_nick)
-{
+void Core::Conference::setNick(const QString& p_nick) {
     if (nick != p_nick) {
         if (joined) {
             room->setNickName(p_nick);
@@ -103,105 +94,99 @@ void Core::Conference::setNick(const QString& p_nick)
     }
 }
 
-void Core::Conference::onRoomJoined()
-{
+void Core::Conference::onRoomJoined() {
     joined = true;
     emit joinedChanged(joined);
 }
 
-void Core::Conference::onRoomLeft()
-{
+void Core::Conference::onRoomLeft() {
     joined = false;
     emit joinedChanged(joined);
 }
 
-void Core::Conference::onRoomNameChanged(const QString& p_name)
-{
+void Core::Conference::onRoomNameChanged(const QString& p_name) {
     setName(p_name);
 }
 
-void Core::Conference::onRoomNickNameChanged(const QString& p_nick)
-{
+void Core::Conference::onRoomNickNameChanged(const QString& p_nick) {
     if (p_nick != nick) {
         nick = p_nick;
         emit nickChanged(nick);
     }
 }
 
-void Core::Conference::onRoomError(const QXmppStanza::Error& err)
-{
+void Core::Conference::onRoomError(const QXmppStanza::Error& err) {
     qDebug() << "MUC" << jid << "error:" << err.text();
 }
 
-void Core::Conference::onRoomParticipantAdded(const QString& p_name)
-{
+void Core::Conference::onRoomParticipantAdded(const QString& p_name) {
     QStringList comps = p_name.split("/");
     QString resource = comps.back();
     QXmppPresence pres = room->participantPresence(p_name);
     QXmppMucItem mi = pres.mucItem();
-    if (resource == jid) {
+    if (resource == jid)
         resource = "";
-    } 
     
     std::map<QString, Archive::AvatarInfo>::const_iterator itr = exParticipants.find(resource);
     bool hasAvatar = itr != exParticipants.end();
     
     if (resource.size() > 0) {
         QDateTime lastInteraction = pres.lastUserInteraction();
-        if (!lastInteraction.isValid()) {
+        if (!lastInteraction.isValid())
             lastInteraction = QDateTime::currentDateTimeUtc();
-        }
         
         QMap<QString, QVariant> cData = {
             {"lastActivity", lastInteraction},
             {"availability", pres.availableStatusType()},
             {"status", pres.statusText()},
             {"affiliation", mi.affiliation()},
-            {"role", mi.role()}
-        };
-        
-        if (hasAvatar) {
-            if (itr->second.autogenerated) {
-                cData.insert("avatarState", static_cast<uint>(Shared::Avatar::valid));
-            } else {
-                cData.insert("avatarState", static_cast<uint>(Shared::Avatar::autocreated));
+            {"role", mi.role()},
+            {"client", QVariant::fromValue(
+                Shared::ClientId(
+                    pres.capabilityNode(),
+                    pres.capabilityVer().toBase64(),
+                    pres.capabilityHash())
+                )
             }
-            cData.insert("avatarPath", avatarPath(resource) + "." + itr->second.type);
-        } else {
-            cData.insert("avatarState", static_cast<uint>(Shared::Avatar::empty));
-            cData.insert("avatarPath", "");
-            requestVCard(p_name);
-        }
+        };
+        careAboutAvatar(hasAvatar, itr->second, cData, resource, p_name);
         
         emit addParticipant(resource, cData);
+
+        if (!hasAvatar) //  because this way vCard is already requested, no need to handle possible avatar update
+            return;
     }
-    
+    handlePossibleAvatarUpdate(pres, resource, hasAvatar, itr->second);
+}
+
+void Core::Conference::handlePossibleAvatarUpdate (
+    const QXmppPresence& pres,
+    const QString& resource,
+    bool hasAvatar,
+    const Archive::AvatarInfo& info
+) {
     switch (pres.vCardUpdateType()) {
         case QXmppPresence::VCardUpdateNone:            //this presence has nothing to do with photo
             break;
         case QXmppPresence::VCardUpdateNotReady:        //let's say the photo didn't change here
             break;
-        case QXmppPresence::VCardUpdateNoPhoto: {       //there is no photo, need to drop if any
-            if (!hasAvatar || !itr->second.autogenerated) {
+        case QXmppPresence::VCardUpdateNoPhoto:         //there is no photo, need to drop if any
+            if (!hasAvatar || !info.autogenerated)
                 setAutoGeneratedAvatar(resource);
-            }
-        }         
-        break;
-        case QXmppPresence::VCardUpdateValidPhoto:{     //there is a photo, need to load
+
+            break;
+        case QXmppPresence::VCardUpdateValidPhoto:      //there is a photo, need to load
             if (hasAvatar) {
-                if (itr->second.autogenerated || itr->second.hash != pres.photoHash()) {
-                    emit requestVCard(p_name);
-                }
+                if (info.autogenerated || info.hash != pres.photoHash())
+                    emit requestVCard(pres.from());
             } else {
-                emit requestVCard(p_name);
+                emit requestVCard(pres.from());
             }
             break;
-        }      
     }
 }
 
-void Core::Conference::onRoomParticipantChanged(const QString& p_name)
-{
+void Core::Conference::onRoomParticipantChanged(const QString& p_name) {
     QStringList comps = p_name.split("/");
     QString resource = comps.back();
     QXmppPresence pres = room->participantPresence(p_name);
@@ -209,22 +194,27 @@ void Core::Conference::onRoomParticipantChanged(const QString& p_name)
     handlePresence(pres);
     if (resource != jid) {
         QDateTime lastInteraction = pres.lastUserInteraction();
-        if (!lastInteraction.isValid()) {
+        if (!lastInteraction.isValid())
             lastInteraction = QDateTime::currentDateTimeUtc();
-        }
         
         emit changeParticipant(resource, {
             {"lastActivity", lastInteraction},
             {"availability", pres.availableStatusType()},
             {"status", pres.statusText()},
             {"affiliation", mi.affiliation()},
-            {"role", mi.role()}
+            {"role", mi.role()},
+            {"client", QVariant::fromValue(
+                Shared::ClientId(
+                    pres.capabilityNode(),
+                    pres.capabilityVer().toBase64(),
+                    pres.capabilityHash())
+                )
+            }
         });
     }
 }
 
-void Core::Conference::onRoomParticipantRemoved(const QString& p_name)
-{
+void Core::Conference::onRoomParticipantRemoved(const QString& p_name) {
     QStringList comps = p_name.split("/");
     QString resource = comps.back();
     if (resource == jid) {
@@ -234,69 +224,40 @@ void Core::Conference::onRoomParticipantRemoved(const QString& p_name)
     }
 }
 
-QString Core::Conference::getSubject() const
-{
-    if (joined) {
+QString Core::Conference::getSubject() const {
+    if (joined)
         return room->subject();
-    } else {
+    else
         return "";
-    }
 }
 
-void Core::Conference::onRoomSubjectChanged(const QString& p_name)
-{
+void Core::Conference::onRoomSubjectChanged(const QString& p_name) {
     emit subjectChanged(p_name);
 }
 
-void Core::Conference::handlePresence(const QXmppPresence& pres)
-{
+void Core::Conference::handlePresence(const QXmppPresence& pres) {
     QString id = pres.from();
     QStringList comps = id.split("/");
     QString jid = comps.front();
     QString resource("");
-    if (comps.size() > 1) {
+    if (comps.size() > 1)
         resource = comps.back();
-    }
-    
-    switch (pres.vCardUpdateType()) {
-        case QXmppPresence::VCardUpdateNone:            //this presence has nothing to do with photo
-            break;
-        case QXmppPresence::VCardUpdateNotReady:        //let's say the photo didn't change here
-            break;
-        case QXmppPresence::VCardUpdateNoPhoto: {       //there is no photo, need to drop if any
-            Archive::AvatarInfo info;
-            bool hasAvatar = readAvatarInfo(info, resource);
-            if (!hasAvatar || !info.autogenerated) {
-                setAutoGeneratedAvatar(resource);
-            }
-        }         
-        break;
-        case QXmppPresence::VCardUpdateValidPhoto:{     //there is a photo, need to load
-            Archive::AvatarInfo info;
-            bool hasAvatar = readAvatarInfo(info, resource);
-            if (hasAvatar) {
-                if (info.autogenerated || info.hash != pres.photoHash()) {
-                    emit requestVCard(id);
-                }
-            } else {
-                emit requestVCard(id);
-            }
-            break;
-        }      
-    }
+
+    Archive::AvatarInfo info;
+    bool hasAvatar = readAvatarInfo(info, resource);
+    handlePossibleAvatarUpdate(pres, resource, hasAvatar, info);
 }
 
-bool Core::Conference::setAutoGeneratedAvatar(const QString& resource)
-{
+bool Core::Conference::setAutoGeneratedAvatar(const QString& resource) {
     Archive::AvatarInfo newInfo;
     bool result = RosterItem::setAutoGeneratedAvatar(newInfo, resource);
     if (result && resource.size() != 0) {
         std::map<QString, Archive::AvatarInfo>::iterator itr = exParticipants.find(resource);
-        if (itr == exParticipants.end()) {
+        if (itr == exParticipants.end())
             exParticipants.insert(std::make_pair(resource, newInfo));
-        } else {
+        else
             itr->second = newInfo;
-        }
+
         emit changeParticipant(resource, {
             {"avatarState", static_cast<uint>(Shared::Avatar::autocreated)},
             {"avatarPath", avatarPath(resource) + "." + newInfo.type}
@@ -306,17 +267,15 @@ bool Core::Conference::setAutoGeneratedAvatar(const QString& resource)
     return result;
 }
 
-bool Core::Conference::setAvatar(const QByteArray& data, Archive::AvatarInfo& info, const QString& resource)
-{
+bool Core::Conference::setAvatar(const QByteArray& data, Archive::AvatarInfo& info, const QString& resource) {
     bool result = RosterItem::setAvatar(data, info, resource);
     if (result && resource.size() != 0) {
         if (data.size() > 0) {
             std::map<QString, Archive::AvatarInfo>::iterator itr = exParticipants.find(resource);
-            if (itr == exParticipants.end()) {
+            if (itr == exParticipants.end())
                 exParticipants.insert(std::make_pair(resource, info));
-            } else {
+            else
                 itr->second = info;
-            }
             
             emit changeParticipant(resource, {
                 {"avatarState", static_cast<uint>(Shared::Avatar::autocreated)},
@@ -324,9 +283,8 @@ bool Core::Conference::setAvatar(const QByteArray& data, Archive::AvatarInfo& in
             });
         } else {
             std::map<QString, Archive::AvatarInfo>::iterator itr = exParticipants.find(resource);
-            if (itr != exParticipants.end()) {
+            if (itr != exParticipants.end())
                 exParticipants.erase(itr);
-            }
             
             emit changeParticipant(resource, {
                 {"avatarState", static_cast<uint>(Shared::Avatar::empty)},
@@ -339,25 +297,31 @@ bool Core::Conference::setAvatar(const QByteArray& data, Archive::AvatarInfo& in
     return result;
 }
 
-Shared::VCard Core::Conference::handleResponseVCard(const QXmppVCardIq& card, const QString &resource)
-{
-    Shared::VCard result = RosterItem::handleResponseVCard(card, resource);
-    
-    if (resource.size() > 0) {
+void Core::Conference::handleResponseVCard(const QXmppVCardIq& card, const QString &resource, Shared::VCard& out) {
+    RosterItem::handleResponseVCard(card, resource, out);
+    if (resource.size() > 0)
         emit changeParticipant(resource, {
-            {"avatarState", static_cast<uint>(result.getAvatarType())},
-            {"avatarPath", result.getAvatarPath()}
+            {"avatarState", static_cast<uint>(out.getAvatarType())},
+            {"avatarPath", out.getAvatarPath()}
         });
-    }
-    
+}
+
+QMap<QString, QVariant> Core::Conference::getAllAvatars() const {
+    QMap<QString, QVariant> result;
+    for (const std::pair<const QString, Archive::AvatarInfo>& pair : exParticipants)
+        result.insert(pair.first, avatarPath(pair.first) + "." + pair.second.type);
+
     return result;
 }
 
-QMap<QString, QVariant> Core::Conference::getAllAvatars() const
-{
-    QMap<QString, QVariant> result;
-    for (const std::pair<const QString, Archive::AvatarInfo>& pair : exParticipants) {
-        result.insert(pair.first, avatarPath(pair.first) + "." + pair.second.type);
-    }
-    return result;
+QMap<QString, QVariant> Core::Conference::getInfo() const {
+    QMap<QString, QVariant> data = RosterItem::getInfo();
+
+    data.insert("autoJoin", getAutoJoin());
+    data.insert("joined", getJoined());
+    data.insert("nick", getNick());
+    data.insert("avatars", getAllAvatars());
+
+    return data;
 }
+

core/conference.h

@@ -16,8 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CORE_CONFERENCE_H
-#define CORE_CONFERENCE_H
+#pragma once
 
 #include <QDir>
 
@@ -26,16 +25,11 @@
 #include <set>
 
 #include "rosteritem.h"
-#include "shared/global.h"
+#include <shared/global.h>
+#include <shared/clientid.h>
 
-namespace Core
-{
-
-/**
- * @todo write docs
- */
-class Conference : public RosterItem
-{
+namespace Core {
+class Conference : public RosterItem {
     Q_OBJECT
 public:
     Conference(const QString& p_jid, const QString& p_account, bool p_autoJoin, const QString& p_name, const QString& p_nick, QXmppMucRoom* p_room);
@@ -48,12 +42,13 @@ public:
     bool getJoined() const;
     void setJoined(bool p_joined);
     
-    bool getAutoJoin();
+    bool getAutoJoin() const;
     void setAutoJoin(bool p_autoJoin);
     void handlePresence(const QXmppPresence & pres) override;
     bool setAutoGeneratedAvatar(const QString& resource = "") override;
-    Shared::VCard handleResponseVCard(const QXmppVCardIq & card, const QString &resource) override;
+    void handleResponseVCard(const QXmppVCardIq & card, const QString &resource, Shared::VCard& out) override;
     QMap<QString, QVariant> getAllAvatars() const;
+    QMap<QString, QVariant> getInfo() const override;
     
 signals:
     void nickChanged(const QString& nick);
@@ -67,6 +62,14 @@ signals:
 protected:
     bool setAvatar(const QByteArray &data, Archive::AvatarInfo& info, const QString &resource = "") override;
     
+private:
+    void handlePossibleAvatarUpdate(
+        const QXmppPresence& pres,
+        const QString& resource,
+        bool hasAvatar,
+        const Archive::AvatarInfo& info
+    );
+
 private:
     QString nick;
     QXmppMucRoom* room;
@@ -89,5 +92,3 @@ private slots:
 };
 
 }
-
-#endif // CORE_CONFERENCE_H

core/contact.cpp

@@ -22,55 +22,49 @@
 Core::Contact::Contact(const QString& pJid, const QString& account, QObject* parent):
     RosterItem(pJid, account, parent),
     groups(),
-    subscriptionState(Shared::SubscriptionState::unknown)
-{
-}
+    subscriptionState(Shared::SubscriptionState::unknown),
+    pep(Shared::Support::unknown)
 
-Core::Contact::~Contact()
-{
-}
+#ifdef WITH_OMEMO
+    ,omemoBundles(Shared::Possible::unknown)
+#endif
+{}
 
-QSet<QString> Core::Contact::getGroups() const
-{
+Core::Contact::~Contact() {}
+
+QSet<QString> Core::Contact::getGroups() const {
     return groups;
 }
 
-unsigned int Core::Contact::groupsCount() const
-{
+unsigned int Core::Contact::groupsCount() const {
     return groups.size();
 }
 
-void Core::Contact::setGroups(const QSet<QString>& set)
-{
+void Core::Contact::setGroups(const QSet<QString>& set) {
     QSet<QString> toRemove = groups - set;
     QSet<QString> toAdd = set - groups;
     
     groups = set;
     
-    for (QSet<QString>::iterator itr = toRemove.begin(), end = toRemove.end(); itr != end; ++itr) {
-        emit groupRemoved(*itr);
-    }
+    for (const QString& group : toRemove)
+        emit groupRemoved(group);
     
-    for (QSet<QString>::iterator itr = toAdd.begin(), end = toAdd.end(); itr != end; ++itr) {
-        emit groupAdded(*itr);
-    }
+    for (const QString& group : toAdd)
+        emit groupAdded(group);
 }
 
-Shared::SubscriptionState Core::Contact::getSubscriptionState() const
-{
+Shared::SubscriptionState Core::Contact::getSubscriptionState() const {
     return subscriptionState;
 }
 
-void Core::Contact::setSubscriptionState(Shared::SubscriptionState state)
-{
+void Core::Contact::setSubscriptionState(Shared::SubscriptionState state) {
     if (subscriptionState != state) {
         subscriptionState = state;
         emit subscriptionStateChanged(subscriptionState);
     }
 }
 
-void Core::Contact::handlePresence(const QXmppPresence& pres)
-{
+void Core::Contact::handlePresence(const QXmppPresence& pres) {
     switch (pres.vCardUpdateType()) {
         case QXmppPresence::VCardUpdateNone:            //this presence has nothing to do with photo
             break;
@@ -79,18 +73,17 @@ void Core::Contact::handlePresence(const QXmppPresence& pres)
         case QXmppPresence::VCardUpdateNoPhoto: {       //there is no photo, need to drop if any
             Archive::AvatarInfo info;
             bool hasAvatar = readAvatarInfo(info);
-            if (!hasAvatar || !info.autogenerated) {
+            if (!hasAvatar || !info.autogenerated)
                 setAutoGeneratedAvatar();
-            }
+
         }         
         break;
         case QXmppPresence::VCardUpdateValidPhoto:{     //there is a photo, need to load
             Archive::AvatarInfo info;
             bool hasAvatar = readAvatarInfo(info);
             if (hasAvatar) {
-                if (info.autogenerated || info.hash != pres.photoHash()) {
+                if (info.autogenerated || info.hash != pres.photoHash())
                     emit requestVCard(jid);
-                }
             } else {
                 emit requestVCard(jid);
             }
@@ -98,3 +91,23 @@ void Core::Contact::handlePresence(const QXmppPresence& pres)
         }      
     }
 }
+
+void Core::Contact::setPepSupport(Shared::Support support) {
+    if (pep != support)
+        pep = support;
+}
+
+Shared::Support Core::Contact::getPepSupport() const {
+    return pep;
+}
+
+QMap<QString, QVariant> Core::Contact::getInfo() const {
+    QMap<QString, QVariant> data = RosterItem::getInfo();
+
+    data.insert("state", QVariant::fromValue(subscriptionState));
+
+    return data;
+}
+
+
+

core/contact.h

@@ -16,17 +16,18 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CORE_CONTACT_H
-#define CORE_CONTACT_H
+#pragma once
 
 #include <QObject>
 #include <QSet>
+
 #include "rosteritem.h"
 
+#include <shared/enums.h>
+
 namespace Core {
 
-class Contact : public RosterItem
-{
+class Contact : public RosterItem {
     Q_OBJECT
 public:
     Contact(const QString& pJid, const QString& account, QObject* parent = 0);
@@ -38,7 +39,11 @@ public:
     
     void setSubscriptionState(Shared::SubscriptionState state);
     Shared::SubscriptionState getSubscriptionState() const;
+    void setPepSupport(Shared::Support support);
+    Shared::Support getPepSupport() const;
+
     void handlePresence(const QXmppPresence & pres) override;
+    QMap<QString, QVariant> getInfo() const override;
 
 signals:
     void groupAdded(const QString& name);
@@ -48,7 +53,11 @@ signals:
 private:
     QSet<QString> groups;
     Shared::SubscriptionState subscriptionState;
+    Shared::Support pep;
+
+#ifdef WITH_OMEMO
+public:
+    Shared::Possible omemoBundles;
+#endif
 };
 }
-
-#endif // CORE_CONTACT_H

core/delayManager/CMakeLists.txt

@@ -0,0 +1,26 @@
+set(SOURCE_FILES
+    manager.cpp
+    job.cpp
+    cardinternal.cpp
+    infoforuser.cpp
+    owncardinternal.cpp
+    owninfoforuser.cpp
+    contact.cpp
+    info.cpp
+)
+
+set(HEADER_FILES
+    manager.h
+    job.h
+    cardinternal.h
+    infoforuser.h
+    owncardinternal.h
+    owninfoforuser.h
+    contact.h
+    info.h
+)
+
+target_sources(squawk PRIVATE
+    ${SOURCE_FILES}
+    ${HEADER_FILES}
+)

core/delayManager/cardinternal.cpp

@@ -0,0 +1,30 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cardinternal.h"
+
+Core::DelayManager::CardInternal::CardInternal(Id p_id, const QString& p_jid) :
+    Job(p_id,  Type::cardInternal),
+    Contact(p_id, p_jid, Type::cardInternal)
+{}
+
+
+Core::DelayManager::CardInternal::CardInternal(const CardInternal& other) :
+    Job(other),
+    Contact(other)
+{}

core/delayManager/cardinternal.h

@@ -0,0 +1,35 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QString>
+
+#include "contact.h"
+
+namespace Core {
+namespace DelayManager {
+
+class CardInternal : public Contact {
+public:
+    CardInternal(Id id, const QString& jid);
+    CardInternal(const CardInternal& other);
+};
+
+}
+}

core/delayManager/contact.cpp

@@ -0,0 +1,28 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "contact.h"
+
+Core::DelayManager::Contact::Contact(const Contact& other):
+    Job(other),
+    jid(other.jid) {}
+
+
+Core::DelayManager::Contact::Contact(Id p_id, const QString& p_jid, Type p_type):
+    Job(p_id, p_type),
+    jid(p_jid) {}

core/delayManager/contact.h

@@ -0,0 +1,38 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QString>
+
+#include "job.h"
+
+namespace Core {
+namespace DelayManager {
+
+class Contact : public virtual Job {
+protected:
+    Contact(Id id, const QString& jid, Type type);
+    Contact(const Contact& other);
+
+public:
+    const QString jid;
+};
+
+}
+}

core/delayManager/info.cpp

@@ -0,0 +1,61 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "info.h"
+
+Core::DelayManager::Info::Info(Id p_id, Type p_type) :
+    Job(p_id, p_type),
+    stage(Stage::waitingForVCard),
+    info(nullptr)
+{}
+
+Core::DelayManager::Info::Info(const Info& other) :
+    Job(other),
+    stage(other.stage),
+    info(nullptr)
+{}
+
+Core::DelayManager::Info::~Info() {
+    if (stage == Stage::waitingForBundles) {
+        delete info;
+    }
+}
+
+Core::DelayManager::Info::Stage Core::DelayManager::Info::getStage() const {
+    return stage;
+}
+
+void Core::DelayManager::Info::receivedVCard(const Shared::VCard& card) {
+    if (stage != Stage::waitingForVCard)
+        throw 245;
+
+    info = new Shared::VCard(card);
+
+#ifdef WITH_OMEMO
+    stage = Stage::waitingForBundles;
+#endif
+}
+
+Shared::VCard * Core::DelayManager::Info::claim() {
+    if (stage != Stage::waitingForBundles)
+        throw 246;
+
+    Shared::VCard* res = info;
+    info = nullptr;
+    return res;
+}

core/delayManager/info.h

@@ -0,0 +1,55 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "job.h"
+
+#include <shared/vcard.h>
+#include <shared/info.h>
+
+namespace Core {
+namespace DelayManager {
+
+class Info : public virtual Job {
+public:
+    enum class Stage {
+        waitingForVCard,
+        waitingForBundles,
+        finished
+    };
+
+protected:
+    Info(Id id, Type type);
+    Info(const Info& other);
+
+public:
+    ~Info();
+
+    void receivedVCard(const Shared::VCard& card);
+    Shared::VCard* claim();
+    Stage getStage() const;
+
+
+private:
+    Stage stage;
+    Shared::VCard* info;
+};
+
+}
+}

core/delayManager/infoforuser.cpp

@@ -0,0 +1,31 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "infoforuser.h"
+
+Core::DelayManager::InfoForUser::InfoForUser(Id p_id, const QString& p_jid) :
+    Job(p_id, Type::infoForUser),
+    Contact(p_id, p_jid, Type::infoForUser),
+    Info(p_id, Type::infoForUser)
+{}
+
+Core::DelayManager::InfoForUser::InfoForUser(const InfoForUser& other) :
+    Job(other),
+    Contact(other),
+    Info(other)
+{}

core/delayManager/infoforuser.h

@@ -0,0 +1,34 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "contact.h"
+#include "info.h"
+
+namespace Core {
+namespace DelayManager {
+
+class InfoForUser : public Contact, public Info {
+public:
+    InfoForUser(Id id, const QString& jid);
+    InfoForUser(const InfoForUser& other);
+};
+
+}
+}

core/delayManager/job.cpp

@@ -0,0 +1,30 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "job.h"
+
+Core::DelayManager::Job::Job(Id p_id, Type p_type) :
+    id (p_id),
+    type (p_type) {}
+
+
+Core::DelayManager::Job::Job(const Job& other) :
+    id(other.id),
+    type(other.type) {}
+
+Core::DelayManager::Job::~Job() {}

core/delayManager/job.h

@@ -0,0 +1,54 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+namespace Core {
+namespace DelayManager {
+
+class Job {
+public:
+    typedef uint16_t Id;
+
+    enum class Type {
+        cardInternal,
+        ownCardInternal,
+        infoForUser,
+        ownInfoForUser
+    };
+    inline static constexpr const char * const TypeString[] = {
+        "cardInternal",
+        "ownCardInternal",
+        "infoForUser",
+        "ownInfoForUser"
+    };
+protected:
+    Job(Id id, Type type);
+    Job(const Job& other);
+
+public:
+    virtual ~Job();
+
+    const Id id;
+    const Type type;
+};
+
+}
+}

core/delayManager/manager.cpp

@@ -0,0 +1,439 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "manager.h"
+
+#include <QDebug>
+
+#include "cardinternal.h"
+#include "infoforuser.h"
+#include "owncardinternal.h"
+#include "owninfoforuser.h"
+
+Core::DelayManager::Manager::Manager(const QString& poj, Job::Id mpj, QObject* parent) :
+    QObject(parent),
+    maxParallelJobs(mpj),
+    nextJobId(1),
+    scheduledJobs(),
+    scheduledJobsById(scheduledJobs.get<id>()),
+    jobSequence(scheduledJobs.get<sequence>()),
+    runningJobs(),
+    ownVCardJobId(0),
+    ownInfoJobId(0),
+    scheduledVCards(),
+    requestedVCards(),
+#ifdef WITH_OMEMO
+    requestedBundles(),
+#endif
+    ownJid(poj)
+{}
+
+Core::DelayManager::Manager::~Manager() {
+    for (const std::pair<const Job::Id, Job*>& pair : runningJobs)
+        delete pair.second;
+
+    for (Job* job : jobSequence)
+        delete job;
+}
+
+Core::DelayManager::Job::Id Core::DelayManager::Manager::getNextJobId() {
+    Job::Id id = nextJobId++;
+    if (id == 0)
+        id = nextJobId++;
+
+    return id;
+}
+
+void Core::DelayManager::Manager::getInfo(const QString& jid) {
+    if (jid == ownJid)
+        return getOwnInfo();
+
+    Job* job = nullptr;
+#ifdef WITH_OMEMO
+    std::map<QString, Job::Id>::const_iterator bitr = requestedBundles.find(jid);
+    if (bitr != requestedBundles.end()) {
+        std::map<Job::Id, Job*>::const_iterator itr = runningJobs.find(bitr->second);
+        if (itr == runningJobs.end())
+            throw JobNotFound(bitr->second);
+
+        job = itr->second;
+    }
+    else
+#endif
+        job = getVCardJob(jid);
+
+    if (job != nullptr) {
+        if (job->type == Job::Type::cardInternal)
+            replaceJob(new InfoForUser(job->id, jid));
+    } else
+        scheduleJob(new InfoForUser(getNextJobId(), jid));
+}
+
+void Core::DelayManager::Manager::getOwnInfo() {
+    if (ownInfoJobId == 0) {
+        if (ownVCardJobId != 0)
+            replaceJob(new OwnInfoForUser(ownVCardJobId));
+        else
+            scheduleJob(new OwnInfoForUser(getNextJobId()));
+    }
+}
+
+void Core::DelayManager::Manager::getVCard(const QString& jid) {
+    Job* job = getVCardJob(jid);
+    if (job == nullptr)
+        scheduleJob(new CardInternal(getNextJobId(), jid));
+}
+
+void Core::DelayManager::Manager::getOwnVCard() {
+    if (ownVCardJobId == 0)
+        scheduleJob(new OwnCardInternal(getNextJobId()));
+}
+
+bool Core::DelayManager::Manager::isOwnVCardPending() const {
+    return ownVCardJobId != 0;
+}
+
+Core::DelayManager::Job* Core::DelayManager::Manager::getVCardJob(const QString& jid) {
+    Job* job = nullptr;
+    std::map<QString, Job::Id>::const_iterator sitr = scheduledVCards.find(jid);
+    if (sitr == scheduledVCards.end()) {
+        std::map<QString, Job::Id>::const_iterator ritr = requestedVCards.find(jid);
+        if (ritr != requestedVCards.end()) {
+            std::map<Job::Id, Job*>::const_iterator itr = runningJobs.find(ritr->second);
+            if (itr == runningJobs.end())
+                throw JobNotFound(ritr->second, "getVCardJob:1");
+
+            job = itr->second;
+        }
+    } else {
+        StorageById::const_iterator itr = scheduledJobsById.find(sitr->second);
+        if (itr == scheduledJobsById.end())
+            throw JobNotFound(sitr->second, "getVCardJob:2");
+
+        job = *itr;
+    }
+
+    return job;
+}
+void Core::DelayManager::Manager::preScheduleJob(Job* job) {
+    switch (job->type) {
+        case Job::Type::cardInternal:
+            scheduledVCards.emplace(dynamic_cast<CardInternal*>(job)->jid, job->id);
+            break;
+        case Job::Type::ownCardInternal:
+            ownVCardJobId = job->id;
+            break;
+        case Job::Type::infoForUser:
+            scheduledVCards.emplace(dynamic_cast<InfoForUser*>(job)->jid, job->id);
+            break;
+        case Job::Type::ownInfoForUser:
+            ownVCardJobId = job->id;
+            ownInfoJobId = job->id;
+            break;
+    }
+}
+
+void Core::DelayManager::Manager::scheduleJob(Job* job) {
+    preScheduleJob(job);
+    if (runningJobs.size() < maxParallelJobs)
+        executeJob(job);
+    else
+        scheduledJobs.push_back(job);
+}
+
+void Core::DelayManager::Manager::preExecuteJob(Job* job) {
+    switch (job->type) {
+        case Job::Type::cardInternal:
+        case Job::Type::infoForUser: {
+            Contact* cij = dynamic_cast<Contact*>(job);
+            requestedVCards.emplace(cij->jid, job->id);
+            scheduledVCards.erase(cij->jid);
+        }
+            break;
+        case Job::Type::ownInfoForUser:
+        case Job::Type::ownCardInternal:
+            break;
+    }
+}
+
+void Core::DelayManager::Manager::executeJob(Job* job) {
+    preExecuteJob(job);
+    runningJobs.emplace(job->id, job);
+    switch (job->type) {
+        case Job::Type::cardInternal:
+        case Job::Type::infoForUser:
+            emit requestVCard(dynamic_cast<Contact*>(job)->jid);
+            break;
+        case Job::Type::ownInfoForUser:
+        case Job::Type::ownCardInternal:
+            emit requestOwnVCard();
+            break;
+    }
+}
+
+void Core::DelayManager::Manager::jobIsDone(Job::Id jobId) {
+    std::map<Job::Id, Job*>::const_iterator itr = runningJobs.find(jobId);
+    if (itr == runningJobs.end())
+        throw JobNotFound(jobId, "jobIsDone");
+
+    Job* job = itr->second;
+    delete job;
+    runningJobs.erase(itr);
+    if (scheduledJobs.size() > 0) {
+        Job* job = scheduledJobs.front();
+        scheduledJobs.pop_front();
+        executeJob(job);
+    }
+}
+
+void Core::DelayManager::Manager::replaceJob(Job* job) {
+    preScheduleJob(job);
+    std::map<Job::Id, Job*>::iterator itr = runningJobs.find(job->id);
+    if (itr != runningJobs.end()) {
+        preExecuteJob(job);
+        delete itr->second;
+        itr->second = job;
+    } else {
+        StorageById::iterator sitr = scheduledJobsById.find(job->id);
+        if (sitr != scheduledJobsById.end()) {
+            delete *(sitr);
+            scheduledJobsById.replace(sitr, job);
+        } else
+            throw JobNotFound(job->id, "replaceJob");
+    }
+}
+
+void Core::DelayManager::Manager::jobIsCanceled(Job* job, bool wasRunning) {
+    switch (job->type) {
+        case Job::Type::cardInternal: {
+            CardInternal* jb = dynamic_cast<CardInternal*>(job);
+            if (wasRunning)
+                requestedVCards.erase(jb->jid);
+            else
+                scheduledVCards.erase(jb->jid);
+
+            emit gotVCard(jb->jid, Shared::VCard());
+        }
+            break;
+        case Job::Type::infoForUser: {
+            InfoForUser* jb = dynamic_cast<InfoForUser*>(job);
+            switch (jb->getStage()) {
+                case InfoForUser::Stage::waitingForVCard:
+                    if (wasRunning)
+                        requestedVCards.erase(jb->jid);
+                    else
+                        scheduledVCards.erase(jb->jid);
+
+                    emit gotVCard(jb->jid, Shared::VCard());
+                    break;
+                case InfoForUser::Stage::waitingForBundles:
+#ifdef WITH_OMEMO
+                    requestedBundles.erase(jb->jid);
+#endif
+                    break;
+                default:
+                    break;
+            }
+            emit gotInfo(Shared::Info(jb->jid));
+        }
+            break;
+        case Job::Type::ownInfoForUser: {
+            OwnInfoForUser* jb = dynamic_cast<OwnInfoForUser*>(job);
+            if (jb->getStage() == OwnInfoForUser::Stage::waitingForVCard) {
+                ownVCardJobId = 0;
+                emit gotOwnVCard(Shared::VCard());
+            }
+            ownInfoJobId = 0;
+            emit gotOwnInfo(Shared::Info (ownJid));
+        }
+
+            break;
+        case Job::Type::ownCardInternal:
+            ownVCardJobId = 0;
+            emit gotOwnVCard(Shared::VCard());
+            break;
+    }
+
+    delete job;
+}
+
+void Core::DelayManager::Manager::disconnected() {
+    for (const std::pair<const Job::Id, Job*> pair : runningJobs)
+        jobIsCanceled(pair.second, true);
+
+    for (Job* job : scheduledJobs)
+        jobIsCanceled(job, false);
+
+    runningJobs.clear();
+    scheduledJobs.clear();
+}
+
+void Core::DelayManager::Manager::receivedVCard(const QString& jid, const Shared::VCard& card) {
+    std::map<QString, Job::Id>::const_iterator cardItr = requestedVCards.find(jid);
+    if (cardItr == requestedVCards.end()) {
+        qDebug() << "received VCard for" << jid << "but it was never requested through manager, ignoring";
+        return;
+    }
+    Job::Id jobId = cardItr->second;
+    requestedVCards.erase(cardItr);
+    std::map<Job::Id, Job*>::const_iterator itr = runningJobs.find(jobId);
+    if (itr == runningJobs.end())
+        throw JobNotFound(jobId, "receivedVCard");
+
+    Job* job = itr->second;
+
+    switch (job->type) {
+        case Job::Type::cardInternal:
+            jobIsDone(jobId);
+            emit gotVCard(jid, card);
+            break;
+        case Job::Type::infoForUser: {
+#ifdef WITH_OMEMO
+            requestedBundles.emplace(jid, jobId);
+            InfoForUser* jb = dynamic_cast<InfoForUser*>(job);
+            jb->receivedVCard(card);
+            emit requestBundles(jid);
+#else
+            Shared::Info info(jid);
+            info.turnIntoContact(card);
+            emit gotInfo(info);
+            jobIsDone(jobId);
+#endif
+            emit gotVCard(jid, card);
+        }
+            break;
+        default:
+            throw UnexpectedJobType(job->type, "receivedVCard");
+    }
+}
+
+void Core::DelayManager::Manager::receivedOwnVCard(const Shared::VCard& card) {
+    if (ownVCardJobId == 0) {
+        qDebug() << "received own VCard for" << ownJid << "but it was never requested through manager, ignoring";
+        return;
+    }
+    Job::Id jobId = ownVCardJobId;
+    ownVCardJobId = 0;
+    std::map<Job::Id, Job*>::const_iterator itr = runningJobs.find(jobId);
+    if (itr == runningJobs.end())
+        throw JobNotFound(jobId, "receivedOwnVCard");
+
+    Job* job = itr->second;
+    switch (job->type) {
+        case Job::Type::ownCardInternal:
+            jobIsDone(jobId);
+            emit gotOwnVCard(card);
+            break;
+        case Job::Type::ownInfoForUser: {
+#ifdef WITH_OMEMO
+            OwnInfoForUser* jb = dynamic_cast<OwnInfoForUser*>(job);
+            jb->receivedVCard(card);
+            emit requestOwnBundles();
+#else
+            Shared::Info info(ownJid);
+            info.turnIntoOwnAccount(card);
+            emit gotOwnInfo(info);
+            jobIsDone(jobId);
+#endif
+            emit gotOwnVCard(card);
+        }
+            break;
+        default:
+            throw UnexpectedJobType(job->type, "receivedVCard");
+    }
+}
+
+#ifdef WITH_OMEMO
+void Core::DelayManager::Manager::receivedBundles(const QString& jid, const std::list<Shared::KeyInfo>& keys) {
+    std::map<QString, Job::Id>::const_iterator itr = requestedBundles.find(jid);
+    if (itr == requestedBundles.end()) {
+        qDebug() << "received bundles for" << jid << "but they were never requested through manager, ignoring";
+        return;
+    }
+
+    Job::Id jobId = itr->second;
+    requestedBundles.erase(itr);
+    std::map<Job::Id, Job*>::const_iterator jitr = runningJobs.find(jobId);
+    if (jitr == runningJobs.end())
+        throw JobNotFound(jobId, "receivedBundles");
+
+    Job* jb = jitr->second;
+    InfoForUser* job = dynamic_cast<InfoForUser*>(jb);
+
+    Shared::Info info(jid);
+    info.turnIntoContact(job->claim(), new std::list<Shared::KeyInfo>(keys));
+    emit gotInfo(info);
+    jobIsDone(jobId);
+}
+
+void Core::DelayManager::Manager::receivedOwnBundles(const std::list<Shared::KeyInfo>& keys) {
+    if (ownInfoJobId == 0) {
+        qDebug() << "received own bundles for" << ownJid << "but they were never requested through manager, ignoring";
+        return;
+    }
+    Job::Id jobId = ownInfoJobId;
+    ownInfoJobId = 0;
+    std::map<Job::Id, Job*>::const_iterator jitr = runningJobs.find(jobId);
+    if (jitr == runningJobs.end())
+        throw JobNotFound(jobId, "receivedOwnBundles");
+
+    Job* jb = jitr->second;
+    OwnInfoForUser* job = dynamic_cast<OwnInfoForUser*>(jb);
+
+    Shared::Info info(ownJid);
+    info.turnIntoOwnAccount(job->claim(), new std::list<Shared::KeyInfo>(keys));
+    emit gotOwnInfo(info);
+    jobIsDone(jobId);
+}
+#endif
+
+void Core::DelayManager::Manager::setOwnJid(const QString& jid) {
+    ownJid = jid;
+}
+
+
+Core::DelayManager::Manager::UnexpectedJobType::UnexpectedJobType(Job::Type p_type, const std::string& p_method):
+    Exception(),
+    type(p_type),
+    method(p_method)
+{}
+
+std::string Core::DelayManager::Manager::UnexpectedJobType::getMessage() const{
+    std::string msg("Unexpected job type: ");
+    msg += Job::TypeString[static_cast<int>(type)];
+    if (method.size() > 0)
+        msg += " in method " + method;
+
+    return msg;
+}
+
+Core::DelayManager::Manager::JobNotFound::JobNotFound(Job::Id p_id, const std::string& p_method) :
+    Exception(),
+    id(p_id),
+    method(p_method)
+{}
+
+std::string Core::DelayManager::Manager::JobNotFound::getMessage() const {
+    std::string msg("Job with id ");
+    msg += std::to_string(id);
+    msg += " was not found";
+    if (method.size() > 0)
+        msg += " in method " + method;
+
+    return msg;
+}

core/delayManager/manager.h

@@ -0,0 +1,153 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <list>
+#include <set>
+#include <string>
+
+#include <boost/multi_index_container.hpp>
+#include <boost/multi_index/ordered_index.hpp>
+#include <boost/multi_index/sequenced_index.hpp>
+#include <boost/multi_index/member.hpp>
+
+#include <QObject>
+#include <QString>
+
+#include <shared/vcard.h>
+#include <shared/info.h>
+#include <shared/exception.h>
+
+#include "job.h"
+
+namespace Core {
+namespace DelayManager {
+
+class Manager : public QObject {
+    Q_OBJECT
+public:
+    Manager(const QString& ownJid, Job::Id maxParallelJobs = 5, QObject* parent = nullptr);
+    ~Manager();
+
+    void setOwnJid(const QString& jid);
+    bool isOwnVCardPending() const;
+
+public slots:
+    void getOwnVCard();
+    void getOwnInfo();
+    void getVCard(const QString& jid);
+    void getInfo(const QString& jid);
+
+signals:
+    void requestVCard(const QString& jid);
+    void requestOwnVCard();
+
+#ifdef WITH_OMEMO
+    void requestBundles(const QString& jid);
+    void requestOwnBundles();
+#endif
+
+    void gotVCard(const QString& jid, const Shared::VCard& info);
+    void gotOwnVCard(const Shared::VCard& info);
+    void gotInfo(const Shared::Info& info);
+    void gotOwnInfo(const Shared::Info& info);
+
+public slots:
+    void disconnected();
+    void receivedOwnVCard(const Shared::VCard& card);
+    void receivedVCard(const QString& jid, const Shared::VCard& card);
+
+#ifdef WITH_OMEMO
+    void receivedBundles(const QString& jid, const std::list<Shared::KeyInfo>& keys);
+    void receivedOwnBundles(const std::list<Shared::KeyInfo>& keys);
+#endif
+
+private:
+    void preScheduleJob(Job* job);
+    void scheduleJob(Job* job);
+    void preExecuteJob(Job* job);
+    void executeJob(Job* job);
+    void jobIsCanceled(Job* job, bool wasRunning);
+    void jobIsDone(Job::Id jobId);
+    Job::Id getNextJobId();
+    void replaceJob(Job* job);
+    Job* getVCardJob(const QString& jid);
+
+private:
+    struct id {};
+    struct sequence {};
+
+    typedef boost::multi_index_container<
+        Job*,
+        boost::multi_index::indexed_by<
+            boost::multi_index::sequenced<
+                boost::multi_index::tag<sequence>
+            >,
+            boost::multi_index::ordered_unique<
+                boost::multi_index::tag<id>,
+                boost::multi_index::member<
+                    Job,
+                    const Job::Id,
+                    &Job::id
+                >
+            >
+        >
+    > Storage;
+
+
+    typedef Storage::index<id>::type StorageById;
+    typedef Storage::index<sequence>::type StorageSequence;
+    Job::Id maxParallelJobs;
+    Job::Id nextJobId;
+
+    Storage scheduledJobs;
+    StorageById& scheduledJobsById;
+    StorageSequence& jobSequence;
+    std::map<Job::Id, Job*> runningJobs;
+
+    Job::Id ownVCardJobId;
+    Job::Id ownInfoJobId;
+    std::map<QString, Job::Id> scheduledVCards;
+    std::map<QString, Job::Id> requestedVCards;
+#ifdef WITH_OMEMO
+    std::map<QString, Job::Id> requestedBundles;
+#endif
+    QString ownJid;
+
+public:
+    class UnexpectedJobType: public Utils::Exception {
+    public:
+        UnexpectedJobType(Job::Type p_type, const std::string& p_method = "");
+        std::string getMessage() const override;
+    private:
+        Job::Type type;
+        std::string method;
+    };
+
+    class JobNotFound: public Utils::Exception {
+    public:
+        JobNotFound(Job::Id p_id, const std::string& p_method = "");
+        std::string getMessage() const override;
+    private:
+        Job::Id id;
+        std::string method;
+    };
+};
+
+}
+}

core/delayManager/owncardinternal.cpp

@@ -0,0 +1,32 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "owncardinternal.h"
+
+Core::DelayManager::OwnCardInternal::OwnCardInternal(Id p_id) :
+    Job(p_id, Type::ownCardInternal)
+{}
+
+Core::DelayManager::OwnCardInternal::OwnCardInternal(Id p_id, Type p_type) :
+    Job(p_id, p_type)
+{}
+
+Core::DelayManager::OwnCardInternal::OwnCardInternal(const OwnCardInternal& other) :
+    Job(other)
+{}
+

core/delayManager/owncardinternal.h

@@ -0,0 +1,36 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "job.h"
+
+namespace Core {
+namespace DelayManager {
+
+class OwnCardInternal : public Job {
+protected:
+    OwnCardInternal(Id id, Type type);
+
+public:
+    OwnCardInternal(Id id);
+    OwnCardInternal(const OwnCardInternal& other);
+};
+
+}
+}

core/delayManager/owninfoforuser.cpp

@@ -0,0 +1,29 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "owninfoforuser.h"
+
+Core::DelayManager::OwnInfoForUser::OwnInfoForUser(Id p_id) :
+    Job(p_id, Type::ownInfoForUser),
+    Info(p_id, Type::ownInfoForUser)
+{}
+
+Core::DelayManager::OwnInfoForUser::OwnInfoForUser(const OwnInfoForUser& other) :
+    Job(other),
+    Info(other)
+{}

core/delayManager/owninfoforuser.h

@@ -0,0 +1,34 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "contact.h"
+#include "info.h"
+
+namespace Core {
+namespace DelayManager {
+
+class OwnInfoForUser : public Info {
+public:
+    OwnInfoForUser(Id id);
+    OwnInfoForUser(const OwnInfoForUser& other);
+};
+
+}
+}

core/handlers/CMakeLists.txt

@@ -1,6 +1,22 @@
-target_sources(squawk PRIVATE
+set(SOURCE_FILES
   messagehandler.cpp
-  messagehandler.h
   rosterhandler.cpp
+  vcardhandler.cpp
+  discoveryhandler.cpp
+  trusthandler.cpp
+)
+
+set(HEADER_FILES
+  messagehandler.h
   rosterhandler.h
-  )
+  vcardhandler.h
+  discoveryhandler.h
+  trusthandler.h
+)
+
+if(WITH_OMEMO)
+  list(APPEND SOURCE_FILES omemohandler.cpp)
+  list(APPEND HEADER_FILES omemohandler.h)
+endif()
+
+target_sources(squawk PRIVATE ${SOURCE_FILES})

core/handlers/discoveryhandler.cpp

@@ -0,0 +1,155 @@
+// Squawk messenger. 
+// Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+// 
+// 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 3 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, see <http://www.gnu.org/licenses/>.
+
+#include "discoveryhandler.h"
+#include "core/account.h"
+
+#include <QDebug>
+
+Core::DiscoveryHandler::DiscoveryHandler(Core::Account* account):
+    QObject(),
+    acc(account),
+    omemoToCarbonsConnected (false) {}
+
+Core::DiscoveryHandler::~DiscoveryHandler() {}
+
+void Core::DiscoveryHandler::initialize()
+{
+    QObject::connect(acc->dm, &QXmppDiscoveryManager::itemsReceived, this, &DiscoveryHandler::onItemsReceived);
+    QObject::connect(acc->dm, &QXmppDiscoveryManager::infoReceived, this, &DiscoveryHandler::onInfoReceived);
+
+    acc->dm->setClientType("pc");
+    acc->dm->setClientCategory("client");
+    acc->dm->setClientName(qApp->applicationDisplayName() + " " + qApp->applicationVersion());
+    acc->dm->setClientCapabilitiesNode("https://git.macaw.me/blue/squawk");
+}
+
+void Core::DiscoveryHandler::onItemsReceived(const QXmppDiscoveryIq& items)
+{
+    QString server = acc->getServer();
+    if (items.from() == server) {
+        std::set<QString> needToRequest;
+        qDebug() << "Server items list received for account " << acc->getName() << ":";
+        for (QXmppDiscoveryIq::Item item : items.items()) {
+            QString jid = item.jid();
+            if (jid != server) {
+                qDebug() << "     Node" << jid;
+                needToRequest.insert(jid);
+            } else {
+                qDebug() << "    " << item.node().toStdString().c_str();
+            }
+        }
+
+        for (const QString& jid : needToRequest) {
+            acc->dm->requestInfo(jid);
+        }
+    }
+}
+
+void Core::DiscoveryHandler::onInfoReceived(const QXmppDiscoveryIq& info)
+{
+    QString from = info.from();
+    QString server = acc->getServer();
+    QString accName = acc->getName();
+    QString bareJid = acc->getBareJid();
+    if (from == server) {
+        bool enableCC = false;
+        qDebug() << "Server info received for account" << accName;
+        QStringList features = info.features();
+        qDebug() << "List of supported features of the server " << server << ":";
+        for (const QString& feature : features) {
+            qDebug() << "    " << feature.toStdString().c_str();
+            if (feature == "urn:xmpp:carbons:2") {
+                enableCC = true;
+            }
+        }
+
+        if (enableCC) {
+            qDebug() << "Enabling carbon copies for account" << accName;
+#if (QXMPP_VERSION) < QT_VERSION_CHECK(1, 5, 0)
+            acc->cm->setCarbonsEnabled(true);
+#endif
+#ifdef WITH_OMEMO
+            if (!omemoToCarbonsConnected && acc->oh->hasOwnDevice()) {
+                // connect(this, &QXmppCarbonManager::messageSent, acc->om, &QXmppOmemoManager::handleMessage);
+                // connect(this, &QXmppCarbonManager::messageReceived, acc->om, &QXmppOmemoManager::handleMessage);
+                omemoToCarbonsConnected = true;
+            }
+        } else {
+            if (omemoToCarbonsConnected) {
+                // disconnect(this, &QXmppCarbonManager::messageSent, acc->om, &QXmppOmemoManager::handleMessage);
+                // disconnect(this, &QXmppCarbonManager::messageReceived, acc->om, &QXmppOmemoManager::handleMessage);
+                omemoToCarbonsConnected = false;
+            }
+#endif
+        }
+
+        qDebug() << "Requesting account" << accName << "capabilities";
+        acc->dm->requestInfo(bareJid);
+    } else if (from == bareJid) {
+        qDebug() << "Received capabilities for account" << accName << ":";
+        QList<QXmppDiscoveryIq::Identity> identities = info.identities();
+        bool pepSupported = false;
+        for (const QXmppDiscoveryIq::Identity& identity : identities) {
+            QString type = identity.type();
+            QString category = identity.category();
+            qDebug() << "    " << category << type;
+            if (type == "pep" && category == "pubsub") {
+                pepSupported = true;
+            }
+        }
+        acc->setPepSupport(pepSupported ? Shared::Support::supported : Shared::Support::unsupported);
+    } else {
+        QString node = info.queryNode();
+        if (!node.isEmpty()) {
+            qDebug() << "Received features and identities for account" << accName << "about" << from;
+            QStringList feats = info.features();
+            std::set<Shared::Identity> identities;
+            std::set<QString> features(feats.begin(), feats.end());
+            QList<QXmppDiscoveryIq::Identity> idents = info.identities();
+            for (const QXmppDiscoveryIq::Identity& ident : idents) {
+                Shared::Identity identity;
+                identity.category = ident.category();
+                identity.language = ident.language();
+                identity.name = ident.name();
+                identity.type = ident.type();
+                identities.insert(identity);
+
+                qDebug() << "    " << identity.name << identity.category << identity.type;
+            }
+            for (const QString& feat : features) {
+                qDebug() << "    " << feat;
+            }
+            emit acc->infoDiscovered(from, node, identities, features);
+        } else {
+            Contact* cont = acc->rh->getContact(from);
+            if (cont != nullptr) {
+                qDebug() << "Received info for account" << accName << "about contact" << from;
+                QList<QXmppDiscoveryIq::Identity> identities = info.identities();
+                bool pepSupported = false;
+                for (const QXmppDiscoveryIq::Identity& identity : identities) {
+                    QString type = identity.type();
+                    QString category = identity.category();
+                    qDebug() << "    " << category << type;
+                    if (type == "pep" && category == "pubsub") {
+                        pepSupported = true;
+                    }
+                }
+                cont->setPepSupport(pepSupported ? Shared::Support::supported : Shared::Support::unsupported);
+            }
+        }
+    }
+}

core/handlers/discoveryhandler.h

@@ -0,0 +1,48 @@
+// Squawk messenger. 
+// Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+// 
+// 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 3 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, see <http://www.gnu.org/licenses/>.
+
+#ifndef CORE_DISCOVERYHANDLER_H
+#define CORE_DISCOVERYHANDLER_H
+
+#include <QObject>
+
+#include <QXmppDiscoveryManager.h>
+#include <QXmppDiscoveryIq.h>
+
+namespace Core {
+class Account;
+
+class DiscoveryHandler : public QObject
+{
+    Q_OBJECT
+public:
+    DiscoveryHandler(Account* account);
+    ~DiscoveryHandler();
+
+    void initialize();
+
+private slots:
+    void onItemsReceived (const QXmppDiscoveryIq& items);
+    void onInfoReceived (const QXmppDiscoveryIq& info);
+
+private:
+    Account* acc;
+    bool omemoToCarbonsConnected;
+};
+
+}
+
+#endif // CORE_DISCOVERYHANDLER_H

core/handlers/messagehandler.cpp

@@ -19,151 +19,152 @@
 #include "messagehandler.h"
 #include "core/account.h"
 
+static const QMap<QString, QVariant> statePending({{"state", static_cast<uint8_t>(Shared::Message::State::pending)}});
+static const QMap<QString, QVariant> stateDelivered({{"state", static_cast<uint8_t>(Shared::Message::State::delivered)}});
+static const QMap<QString, QVariant> stateSent({{"state", static_cast<uint8_t>(Shared::Message::State::sent)}});
+
 Core::MessageHandler::MessageHandler(Core::Account* account):
     QObject(),
     acc(account),
     pendingStateMessages(),
     uploadingSlotsQueue()
-{
-}
+{}
 
-void Core::MessageHandler::onMessageReceived(const QXmppMessage& msg)
-{
+void Core::MessageHandler::onMessageReceived(const QXmppMessage& msg) {
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+#ifdef WITH_OMEMO
+    switch (msg.encryptionMethod()) {
+        case QXmpp::NoEncryption:
+            break;                          //just do nothing
+        case QXmpp::UnknownEncryption:
+            qDebug() << "Account" << acc->getName() << "received a message with unknown encryption type";
+            break;                          //let it go the way it is, there is nothing I can do here
+        case QXmpp::Otr:
+            qDebug() << "Account" << acc->getName() << "received an OTR encrypted message, not supported yet";
+            break;                          //let it go the way it is, there is nothing I can do yet
+        case QXmpp::LegacyOpenPgp:
+            qDebug() << "Account" << acc->getName() << "received an LegacyOpenPgp encrypted message, not supported yet";
+            break;                          //let it go the way it is, there is nothing I can do yet
+        case QXmpp::Ox:
+            qDebug() << "Account" << acc->getName() << "received an Ox encrypted message, not supported yet";
+            break;                          //let it go the way it is, there is nothing I can do yet
+        case QXmpp::Omemo0:
+            qDebug() << "Account" << acc->getName() << "received an Omemo0 encrypted message, not supported yet";
+            break;                          //let it go the way it is, there is nothing I can do yet
+        case QXmpp::Omemo1:
+            qDebug() << "Account" << acc->getName() << "received an Omemo1 encrypted message, not supported yet";
+            break;                          //let it go the way it is, there is nothing I can do yet
+        case QXmpp::Omemo2:
+            break;
+    }
+#endif
+#endif
     bool handled = false;
     switch (msg.type()) {
         case QXmppMessage::Normal:
             qDebug() << "received a message with type \"Normal\", not sure what to do with it now, skipping";
             break;
         case QXmppMessage::Chat:
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+            handled = handleChatMessage(msg, false, msg.isCarbonForwarded(), true);
+#else
             handled = handleChatMessage(msg);
+#endif
             break;
         case QXmppMessage::GroupChat:
             handled = handleGroupMessage(msg);
             break;
-        case QXmppMessage::Error: {
-            std::tuple<bool, QString, QString> ids = getOriginalPendingMessageId(msg.id());
-            if (std::get<0>(ids)) {
-                QString id = std::get<1>(ids);
-                QString jid = std::get<2>(ids);
-                RosterItem* cnt = acc->rh->getRosterItem(jid);
-                QMap<QString, QVariant> cData = {
-                    {"state", static_cast<uint>(Shared::Message::State::error)},
-                    {"errorText", msg.error().text()}
-                };
-                if (cnt != 0) {
-                    cnt->changeMessage(id, cData);
-                }
-                emit acc->changeMessage(jid, id, cData);
-                handled = true;
-            } else {
+        case QXmppMessage::Error:
+            handled = handlePendingMessageError(msg.id(), msg.error().text());
+            if (!handled)
                 qDebug() << "received a message with type \"Error\", not sure what to do with it now, skipping";
-            }
-        }
-        break;
+
+            break;
         case QXmppMessage::Headline:
             qDebug() << "received a message with type \"Headline\", not sure what to do with it now, skipping";
             break;
     }
-    if (!handled) {
+    if (!handled)
         logMessage(msg);
-    }
 }
 
-bool Core::MessageHandler::handleChatMessage(const QXmppMessage& msg, bool outgoing, bool forwarded, bool guessing)
-{
-    if (msg.body().size() != 0 || msg.outOfBandUrl().size() > 0) {
-        Shared::Message sMsg(Shared::Message::chat);
-        initializeMessage(sMsg, msg, outgoing, forwarded, guessing);
-        QString jid = sMsg.getPenPalJid();
-        Contact* cnt = acc->rh->getContact(jid);
-        if (cnt == 0) {
-            cnt = acc->rh->addOutOfRosterContact(jid);
-            qDebug() << "appending message" << sMsg.getId() << "to an out of roster contact";
-        }
-        if (outgoing) {
-            if (forwarded) {
-                sMsg.setState(Shared::Message::State::sent);
-            }
-        } else {
-            sMsg.setState(Shared::Message::State::delivered);
-        }
-        QString oId = msg.replaceId();
-        if (oId.size() > 0) {
-            QMap<QString, QVariant> cData = {
-                {"body", sMsg.getBody()},
-                {"stamp", sMsg.getTime()}
-            };
-            cnt->correctMessageInArchive(oId, sMsg);
-            emit acc->changeMessage(jid, oId, cData);
-        } else {
-            cnt->appendMessageToArchive(sMsg);
-            emit acc->message(sMsg);
-        }
-        
-        return true;
-    }
-    return false;
+bool Core::MessageHandler::handlePendingMessageError(const QString& id, const QString& errorText) {
+    return adjustPendingMessage(id, {
+            {"state", static_cast<uint8_t>(Shared::Message::State::error)},
+            {"errorText", errorText}
+        }, true);
 }
 
-bool Core::MessageHandler::handleGroupMessage(const QXmppMessage& msg, bool outgoing, bool forwarded, bool guessing)
-{
+bool Core::MessageHandler::handleChatMessage(const QXmppMessage& msg, bool outgoing, bool forwarded, bool guessing) {
+    if (msg.body().isEmpty() && msg.outOfBandUrl().isEmpty())
+        return false;
+
+    Shared::Message sMsg(Shared::Message::chat);
+    initializeMessage(sMsg, msg, outgoing, forwarded, guessing);
+    QString jid = sMsg.getPenPalJid();
+    Contact* cnt = acc->rh->getContact(jid);
+    if (cnt == 0) {
+        cnt = acc->rh->addOutOfRosterContact(jid);
+        qDebug() << "appending message" << sMsg.getId() << "to an out of roster contact";
+    }
+    if (sMsg.getOutgoing()) {
+        if (sMsg.getForwarded())
+            sMsg.setState(Shared::Message::State::sent);
+    } else {
+        sMsg.setState(Shared::Message::State::delivered);
+    }
+    QString oId = msg.replaceId();
+    if (oId.size() > 0) {
+        QMap<QString, QVariant> cData = {
+            {"body", sMsg.getBody()},
+            {"stamp", sMsg.getTime()}
+        };
+        cnt->correctMessageInArchive(oId, sMsg);
+        emit acc->changeMessage(jid, oId, cData);
+    } else {
+        cnt->appendMessageToArchive(sMsg);
+        emit acc->message(sMsg);
+    }
+
+    return true;
+}
+
+bool Core::MessageHandler::handleGroupMessage(const QXmppMessage& msg, bool outgoing, bool forwarded, bool guessing) {
     const QString& body(msg.body());
-    if (body.size() != 0) {
-        
-        Shared::Message sMsg(Shared::Message::groupChat);
-        initializeMessage(sMsg, msg, outgoing, forwarded, guessing);
-        QString jid = sMsg.getPenPalJid();
-        Conference* cnt = acc->rh->getConference(jid);
-        if (cnt == 0) {
-            return false;
-        }
-        
-        std::tuple<bool, QString, QString> ids = getOriginalPendingMessageId(msg.id());
-        if (std::get<0>(ids)) {
-            QMap<QString, QVariant> cData = {{"state", static_cast<uint>(Shared::Message::State::delivered)}};
-            cnt->changeMessage(std::get<1>(ids), cData);
-            emit acc->changeMessage(std::get<2>(ids), std::get<1>(ids), cData);
-        } else {
-            QString oId = msg.replaceId();
-            if (oId.size() > 0) {
-                QMap<QString, QVariant> cData = {
-                    {"body", sMsg.getBody()},
-                    {"stamp", sMsg.getTime()}
-                };
-                cnt->correctMessageInArchive(oId, sMsg);
-                emit acc->changeMessage(jid, oId, cData);
-            } else {
-                cnt->appendMessageToArchive(sMsg);
-                QDateTime minAgo = QDateTime::currentDateTimeUtc().addSecs(-60);
-                if (sMsg.getTime() > minAgo) {     //otherwise it's considered a delayed delivery, most probably MUC history receipt
-                    emit acc->message(sMsg);
-                } else {
-                    //qDebug() << "Delayed delivery: ";
-                }
-            }
-        }
-        
-        return true;
-    } 
-    return false;
+    if (body.isEmpty())
+        return false;
+
+    Shared::Message sMsg(Shared::Message::groupChat);
+    initializeMessage(sMsg, msg, outgoing, forwarded, guessing);
+    QString jid = sMsg.getPenPalJid();
+    Conference* cnt = acc->rh->getConference(jid);
+    if (cnt == 0)
+        return false;
+
+    bool result = adjustPendingMessage(msg.id(), stateDelivered, true);
+    if (result)             //then it was an echo of my own sent message, nothing else needs to be done
+        return result;
+
+    QString oId = msg.replaceId();
+    if (oId.size() > 0) {
+        QMap<QString, QVariant> cData = {
+            {"body", sMsg.getBody()},
+            {"stamp", sMsg.getTime()}
+        };
+        cnt->correctMessageInArchive(oId, sMsg);
+        emit acc->changeMessage(jid, oId, cData);
+    } else {
+        cnt->appendMessageToArchive(sMsg);
+        QDateTime minAgo = QDateTime::currentDateTimeUtc().addSecs(-60);
+        if (sMsg.getTime() > minAgo)     //otherwise it's considered a delayed delivery, most probably MUC history initial fetch
+            emit acc->message(sMsg);
+    }
+
+    return true;
 }
 
-
-void Core::MessageHandler::initializeMessage(Shared::Message& target, const QXmppMessage& source, bool outgoing, bool forwarded, bool guessing) const
-{
-    const QDateTime& time(source.stamp());
-    QString id;
-#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 3, 0)
-    id = source.originId();
-    if (id.size() == 0) {
-        id = source.id();
-    }
-    target.setStanzaId(source.stanzaId());
-    qDebug() << "initializing message with originId:" << source.originId() << ", id:" << source.id() << ", stansaId:" << source.stanzaId();
-#else
-    id = source.id();
-#endif
-    target.setId(id);
+void Core::MessageHandler::initializeMessage(Shared::Message& target, const QXmppMessage& source, bool outgoing, bool forwarded, bool guessing) const {
+    initializeIDs(target, source);
     QString messageId = target.getId();
     if (messageId.size() == 0) {
         target.generateRandomId();          //TODO out of desperation, I need at least a random ID
@@ -174,30 +175,62 @@ void Core::MessageHandler::initializeMessage(Shared::Message& target, const QXmp
     target.setTo(source.to());
     target.setBody(source.body());
     target.setForwarded(forwarded);
+#ifdef WITH_OMEMO
+    #if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+    if (source.encryptionMethod() == QXmpp::EncryptionMethod::Omemo2)
+        target.setEncryption(Shared::EncryptionProtocol::omemo2);
+    #endif
+#endif
     
-    if (guessing) {
-        if (target.getFromJid() == acc->getLogin() + "@" + acc->getServer()) {
-            outgoing = true;
-        } else {
-            outgoing = false;
-        }
-    }
+    if (guessing)
+        outgoing = target.getFromJid() == acc->getBareJid();
+
+    const QDateTime& time(source.stamp());
     target.setOutgoing(outgoing);
-    if (time.isValid()) {
+    if (time.isValid())
         target.setTime(time);
-    } else {
+    else
         target.setCurrentTime();
-    }
-    
+
     QString oob = source.outOfBandUrl();
-    if (oob.size() > 0) {
+    if (oob.size() > 0)
         target.setAttachPath(acc->network->addMessageAndCheckForPath(oob, acc->getName(), target.getPenPalJid(), messageId));
-    }
+
     target.setOutOfBandUrl(oob);
 }
 
-void Core::MessageHandler::logMessage(const QXmppMessage& msg, const QString& reason)
-{
+void Core::MessageHandler::initializeIDs(Shared::Message& target, const QXmppMessage& source) const {
+    QString id;
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 3, 0)
+    id = source.originId();
+    if (id.size() == 0)
+        id = source.id();
+
+    QString stanzaID;
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+    // here I'm looking preferably for id generated by myself, but if there isn't - any is better than nothing
+    QVector<QXmppStanzaId> sIDs = source.stanzaIds();
+    for (const QXmppStanzaId& sID : sIDs) {
+        bool match = sID.by == acc->getBareJid();
+        if (stanzaID.isEmpty() || match)
+            stanzaID = sID.id;
+
+        if (match)
+            break;
+    }
+#else
+    stanzaID = source.stanzaId();
+#endif
+    target.setStanzaId(stanzaID);
+    qDebug() << "initializing message with originId:" << source.originId() << ", id:" << source.id() << ", stanzaId:" << stanzaID;
+#else
+    id = source.id();
+#endif
+    target.setId(id);
+}
+
+
+void Core::MessageHandler::logMessage(const QXmppMessage& msg, const QString& reason) {
     qDebug() << reason;
     qDebug() << "- from: " << msg.from();
     qDebug() << "- to: " << msg.to();
@@ -206,65 +239,48 @@ void Core::MessageHandler::logMessage(const QXmppMessage& msg, const QString& re
     qDebug() << "- state: " << msg.state();
     qDebug() << "- stamp: " << msg.stamp();
     qDebug() << "- id: " << msg.id();
-#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 3, 0)
-    qDebug() << "- stanzaId: " << msg.stanzaId();
-#endif
     qDebug() << "- outOfBandUrl: " << msg.outOfBandUrl();
     qDebug() << "==============================";
 }
 
-void Core::MessageHandler::onCarbonMessageReceived(const QXmppMessage& msg)
-{
+#if (QXMPP_VERSION) < QT_VERSION_CHECK(1, 5, 0)
+void Core::MessageHandler::onCarbonMessageReceived(const QXmppMessage& msg) {
     handleChatMessage(msg, false, true);
 }
 
-void Core::MessageHandler::onCarbonMessageSent(const QXmppMessage& msg)
-{
+void Core::MessageHandler::onCarbonMessageSent(const QXmppMessage& msg) {
     handleChatMessage(msg, true, true);
 }
+#endif
 
-std::tuple<bool, QString, QString> Core::MessageHandler::getOriginalPendingMessageId(const QString& id)
-{
-    std::tuple<bool, QString, QString> result({false, "", ""});
+std::optional<Shared::MessageInfo> Core::MessageHandler::getOriginalPendingMessageId(const QString& id, bool clear) {
     std::map<QString, QString>::const_iterator itr = pendingStateMessages.find(id);
     if (itr != pendingStateMessages.end()) {
-        std::get<0>(result) = true;
-        std::get<2>(result) = itr->second;
-
+        Shared::MessageInfo info(acc->name, itr->second, itr->first);
         std::map<QString, QString>::const_iterator itrC = pendingCorrectionMessages.find(id);
         if (itrC != pendingCorrectionMessages.end()) {
-            if (itrC->second.size() > 0) {
-                std::get<1>(result) = itrC->second;
-            } else {
-                std::get<1>(result) = itr->first;
-            }
-            pendingCorrectionMessages.erase(itrC);
-        } else {
-            std::get<1>(result) = itr->first;
+            if (itrC->second.size() > 0)
+                info.jid = itrC->second;
+
+            if (clear)
+                pendingCorrectionMessages.erase(itrC);
         }
 
-        pendingStateMessages.erase(itr);
+        if (clear)
+            pendingStateMessages.erase(itr);
+
+        return info;
     }
 
-    return result;
+    return std::nullopt;
 }
 
-void Core::MessageHandler::onReceiptReceived(const QString& jid, const QString& id)
-{
-    std::tuple<bool, QString, QString> ids = getOriginalPendingMessageId(id);
-    if (std::get<0>(ids)) {
-        QMap<QString, QVariant> cData = {{"state", static_cast<uint>(Shared::Message::State::delivered)}};
-        RosterItem* ri = acc->rh->getRosterItem(std::get<2>(ids));
-
-        if (ri != 0) {
-            ri->changeMessage(std::get<1>(ids), cData);
-        }
-        emit acc->changeMessage(std::get<2>(ids), std::get<1>(ids), cData);
-    }
+void Core::MessageHandler::onReceiptReceived(const QString& jid, const QString& id) {
+    SHARED_UNUSED(jid);
+    adjustPendingMessage(id, {{"state", static_cast<uint>(Shared::Message::State::delivered)}}, true);
 }
 
-void Core::MessageHandler::sendMessage(const Shared::Message& data, bool newMessage, QString originalId)
-{
+void Core::MessageHandler::sendMessage(const Shared::Message& data, bool newMessage, QString originalId) {
     if (data.getOutOfBandUrl().size() == 0 && data.getAttachPath().size() > 0) {
         pendingCorrectionMessages.insert(std::make_pair(data.getId(), originalId));
         prepareUpload(data, newMessage);
@@ -273,83 +289,148 @@ void Core::MessageHandler::sendMessage(const Shared::Message& data, bool newMess
     }
 }
 
-void Core::MessageHandler::performSending(Shared::Message data, const QString& originalId, bool newMessage)
-{
+void Core::MessageHandler::performSending(Shared::Message data, const QString& originalId, bool newMessage) {
     QString jid = data.getPenPalJid();
     QString id = data.getId();
     qDebug() << "Sending message with id:" << id;
-    if (originalId.size() > 0) {
-        qDebug() << "To replace one with id:" << originalId;
-    }
+    if (originalId.size() > 0)
+        qDebug() << "To replace the one with id:" << originalId;
+
     RosterItem* ri = acc->rh->getRosterItem(jid);
-    bool sent = false;
-    if (newMessage && originalId.size() > 0) {
+    if (newMessage && originalId.size() > 0)
         newMessage = false;
-    }
+
     QDateTime sendTime = QDateTime::currentDateTimeUtc();
-    if (acc->state == Shared::ConnectionState::connected) {
-        QXmppMessage msg(createPacket(data, sendTime, originalId));
-        
-        sent = acc->client.sendPacket(msg);
-        if (sent) {
-            data.setState(Shared::Message::State::sent);
-        } else {
-            data.setState(Shared::Message::State::error);
-            data.setErrorText("Couldn't send message: internal QXMPP library error, probably need to check out the logs");
-        }
-        
-    } else {
-        data.setState(Shared::Message::State::error);
-        data.setErrorText("You are is offline or reconnecting");
-    }
+    std::pair<Shared::Message::State, QString> result = scheduleSending(data, sendTime, originalId);
+    data.setState(result.first);
+    data.setErrorText(result.second);
     
     QMap<QString, QVariant> changes(getChanges(data, sendTime, newMessage, originalId));
-    
-    QString realId;
-    if (originalId.size() > 0) {
-        realId = originalId;
-    } else {
-        realId = id;
-    }
-    if (ri != 0) {
-        if (newMessage) {
+    if (ri != nullptr) {
+        if (newMessage)
             ri->appendMessageToArchive(data);
-        } else {
-            ri->changeMessage(realId, changes);
-        }
-        if (sent) {
+         else
+            ri->changeMessage(originalId.isEmpty() ? id : originalId, changes);
+
+        if (data.getState() != Shared::Message::State::error) {
             pendingStateMessages.insert(std::make_pair(id, jid));
-            if (originalId.size() > 0) {
+            if (originalId.size() > 0)
                 pendingCorrectionMessages.insert(std::make_pair(id, originalId));
-            }
         } else {
             pendingStateMessages.erase(id);
             pendingCorrectionMessages.erase(id);
         }
     }
     
-    emit acc->changeMessage(jid, realId, changes);
+    emit acc->changeMessage(jid, originalId.isEmpty() ? id : originalId, changes);
 }
 
-QMap<QString, QVariant> Core::MessageHandler::getChanges(Shared::Message& data, const QDateTime& time, bool newMessage, const QString& originalId) const
-{
+std::pair<Shared::Message::State, QString> Core::MessageHandler::scheduleSending(
+    const Shared::Message& message,
+    const QDateTime& sendTime,
+    const QString& originalId
+) {
+    if (acc->state != Shared::ConnectionState::connected)
+        return {Shared::Message::State::error, "You are is offline or reconnecting"};
+
+    QXmppMessage msg = createPacket(message, sendTime, originalId);
+    QString id = msg.id();
+#ifdef WITH_OMEMO
+    if (message.getEncryption() == Shared::EncryptionProtocol::omemo2) {
+        QXmppTask<QXmppE2eeExtension::MessageEncryptResult> task = acc->om->encryptMessage(std::move(msg), std::nullopt);
+        if (task.isFinished()) {
+            const QXmppE2eeExtension::MessageEncryptResult& res = task.result();
+            if (std::holds_alternative<std::unique_ptr<QXmppMessage>>(res)) {
+                qDebug() << "Successfully encrypted a message";
+                const std::unique_ptr<QXmppMessage>& encrypted = std::get<std::unique_ptr<QXmppMessage>>(res);
+                encrypted->setBody(QString());
+                encrypted->setOutOfBandUrl(QString());
+                bool success = acc->client.sendPacket(*encrypted.get());
+                if (success) {
+                    qDebug() << "Successfully sent an encrypted message";
+                    return {Shared::Message::State::sent, ""};
+                } else {
+                    qDebug() << "Couldn't sent an encrypted message";
+                    return {Shared::Message::State::error, "Error sending successfully encrypted message"};
+                }
+            } else if (std::holds_alternative<QXmppError>(res)) {
+                qDebug() << "Couldn't encrypt a message";
+                const QXmppError& err = std::get<QXmppError>(res);
+                return {Shared::Message::State::error, err.description};
+            } else {
+                qDebug() << "Couldn't encrypt a message";
+                return {Shared::Message::State::error, "Unexpected error ecryptng the message"};
+            }
+        } else {
+            task.then(this, [this, id] (QXmppE2eeExtension::MessageEncryptResult&& result) {
+                if (std::holds_alternative<std::unique_ptr<QXmppMessage>>(result)) {
+                    qDebug() << "Successfully encrypted a message";
+                    const std::unique_ptr<QXmppMessage>& encrypted = std::get<std::unique_ptr<QXmppMessage>>(result);
+                    encrypted->setBody(QString());
+                    encrypted->setOutOfBandUrl(QString());
+                    bool success = acc->client.sendPacket(*encrypted.get());
+                    if (success) {
+                        qDebug() << "Successfully sent an encrypted message";
+                        if (!adjustPendingMessage(id, stateSent, false))
+                            qDebug() << "Encrypted message has been successfully sent, but it couldn't be found to update the sate";
+                    } else {
+                        qDebug() << "Couldn't sent an encrypted message";
+                        handlePendingMessageError(id, "Error sending successfully encrypted message");
+                    }
+                } else if (std::holds_alternative<QXmppError>(result)) {
+                    qDebug() << "Couldn't encrypt a message";
+                    const QXmppError& err = std::get<QXmppError>(result);
+                    handlePendingMessageError(id, err.description);
+                } else {
+                    qDebug() << "Couldn't encrypt a message";
+                    handlePendingMessageError(id, "Unexpected error ecryptng the message");
+                }
+            });
+            return {Shared::Message::State::pending, ""};
+        }
+    } else
+#endif
+    {
+        bool success = acc->client.sendPacket(msg);
+        if (success)
+            return {Shared::Message::State::sent, ""};
+        else
+            return {Shared::Message::State::error, "Error sending message, internal QXMPP error"};
+    }
+}
+
+bool Core::MessageHandler::adjustPendingMessage(const QString& messageId, const QMap<QString, QVariant>& data, bool final) {
+    std::optional<Shared::MessageInfo> info = getOriginalPendingMessageId(messageId, final);
+    if (info) {
+        RosterItem* ri = acc->rh->getRosterItem(info->jid);
+        if (ri != nullptr)
+            ri->changeMessage(info->messageId, data);
+
+        emit acc->changeMessage(info->jid, info->messageId, data);
+        return true;
+    }
+
+    return false;
+}
+
+QMap<QString, QVariant> Core::MessageHandler::getChanges(Shared::Message& data, const QDateTime& time, bool newMessage, const QString& originalId) const {
     QMap<QString, QVariant> changes;
 
     QString oob = data.getOutOfBandUrl();
     Shared::Message::State mstate = data.getState();
     changes.insert("state", static_cast<uint>(mstate));
-    if (mstate == Shared::Message::State::error) {
+    if (mstate == Shared::Message::State::error)
         changes.insert("errorText", data.getErrorText());
-    }
-    if (oob.size() > 0) {
+
+    if (oob.size() > 0)
         changes.insert("outOfBandUrl", oob);
-    }
-    if (newMessage) {
+
+    if (newMessage)
         data.setTime(time);
-    }
-    if (originalId.size() > 0) {
+
+    if (originalId.size() > 0)
         changes.insert("body", data.getBody());
-    }
+
     changes.insert("stamp", time);
 
     //sometimes (when the image is pasted with ctrl+v)
@@ -359,22 +440,20 @@ QMap<QString, QVariant> Core::MessageHandler::getChanges(Shared::Message& data,
     if (attachPath.size() > 0) {
         QString squawkified = Shared::squawkifyPath(attachPath);
         changes.insert("attachPath", squawkified);
-        if (attachPath != squawkified) {
+        if (attachPath != squawkified)
             data.setAttachPath(squawkified);
-        }
     }
 
     return changes;
 }
 
-QXmppMessage Core::MessageHandler::createPacket(const Shared::Message& data, const QDateTime& time, const QString& originalId) const
-{
-    QXmppMessage msg(acc->getFullJid(), data.getTo(), data.getBody(), data.getThread());
+QXmppMessage Core::MessageHandler::createPacket(const Shared::Message& data, const QDateTime& time, const QString& originalId) const {
+    QXmppMessage msg(QString(), data.getTo(), data.getBody(), data.getThread());
     QString id(data.getId());
 
-    if (originalId.size() > 0) {
+    if (originalId.size() > 0)
         msg.setReplaceId(originalId);
-    }
+
 
 #if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 3, 0)
     msg.setOriginId(id);
@@ -388,122 +467,115 @@ QXmppMessage Core::MessageHandler::createPacket(const Shared::Message& data, con
     return msg;
 }
 
-void Core::MessageHandler::prepareUpload(const Shared::Message& data, bool newMessage)
-{
-    if (acc->state == Shared::ConnectionState::connected) {
-        QString jid = data.getPenPalJid();
-        QString id = data.getId();
-        RosterItem* ri = acc->rh->getRosterItem(jid);
-        if (!ri) {
-            qDebug() << "An attempt to initialize upload in" << acc->name << "for pal" << jid << "but the object for this pal wasn't found, something went terrebly wrong, skipping send";
-            return;
-        }
-        QString path = data.getAttachPath();
-        QString url = acc->network->getFileRemoteUrl(path);
-        if (url.size() != 0) {
-            sendMessageWithLocalUploadedFile(data, url, newMessage);
-        } else {
-            pendingStateMessages.insert(std::make_pair(id, jid));
-            if (newMessage) {
-                ri->appendMessageToArchive(data);
-            } else {
-                QMap<QString, QVariant> changes({
-                    {"state", (uint)Shared::Message::State::pending}
-                });
-                ri->changeMessage(id, changes);
-                emit acc->changeMessage(jid, id, changes);
-            }
-            //this checks if the file is already uploading, and if so it subscribes to it's success, so, i need to do stuff only if the network knows nothing of this file
-            if (!acc->network->checkAndAddToUploading(acc->getName(), jid, id, path)) {
-                if (acc->um->serviceFound()) {
-                    QFileInfo file(path);
-                    if (file.exists() && file.isReadable()) {
-                        pendingStateMessages.insert(std::make_pair(id, jid));
-                        uploadingSlotsQueue.emplace_back(path, id);
-                        if (uploadingSlotsQueue.size() == 1) {
-                            acc->um->requestUploadSlot(file);
-                        }
-                    } else {
-                        handleUploadError(jid, id, "Uploading file no longer exists or your system user has no permission to read it");
-                        qDebug() << "Requested upload slot in account" << acc->name << "for file" << path << "but the file doesn't exist or is not readable";
-                    }
-                } else {
-                    handleUploadError(jid, id, "Your server doesn't support file upload service, or it's prohibited for your account");
-                    qDebug() << "Requested upload slot in account" << acc->name << "for file" << path << "but upload manager didn't discover any upload services";
-                }
-            }
-        }
-    } else {
+void Core::MessageHandler::prepareUpload(const Shared::Message& data, bool newMessage) {
+    if (acc->state != Shared::ConnectionState::connected) {
         handleUploadError(data.getPenPalJid(), data.getId(), "Account is offline or reconnecting");
         qDebug() << "An attempt to send message with not connected account " << acc->name << ", skipping";
+        return;
+    }
+
+    QString jid = data.getPenPalJid();
+    QString id = data.getId();
+    RosterItem* ri = acc->rh->getRosterItem(jid);
+    if (ri == nullptr) {
+        qDebug() << "An attempt to initialize upload in" << acc->name << "for pal" << jid << "but the object for this pal wasn't found, something went terrebly wrong, skipping send";
+        return;
+    }
+
+    QString path = data.getAttachPath();
+    QString url = acc->network->getFileRemoteUrl(path);
+    if (url.size() != 0)
+        return sendMessageWithLocalUploadedFile(data, url, newMessage);
+
+    pendingStateMessages.insert(std::make_pair(id, jid));
+    if (newMessage) {
+        ri->appendMessageToArchive(data);
+    } else {
+        ri->changeMessage(id, statePending);
+        emit acc->changeMessage(jid, id, statePending);
+    }
+
+    //this checks if the file is already uploading, and if so it subscribes to it's success,
+    //So, I need to do stuff only if the network knows nothing of this file
+    if (acc->network->checkAndAddToUploading(acc->getName(), jid, id, path))
+        return;
+
+    if (!acc->um->serviceFound()) {
+        handleUploadError(jid, id, "Your server doesn't support file upload service, or it's prohibited for your account");
+        qDebug() << "Requested upload slot in account" << acc->name << "for file" << path << "but upload manager didn't discover any upload services";
+        return;
+    }
+
+    QFileInfo file(path);
+    if (file.exists() && file.isReadable()) {
+        pendingStateMessages.insert(std::make_pair(id, jid));
+        uploadingSlotsQueue.emplace_back(file, id);
+        if (uploadingSlotsQueue.size() == 1)
+            acc->um->requestUploadSlot(file);
+    } else {
+        handleUploadError(jid, id, "Uploading file no longer exists or your system user has no permission to read it");
+        qDebug() << "Requested upload slot in account" << acc->name << "for file" << path << "but the file doesn't exist or is not readable";
     }
 }
 
-void Core::MessageHandler::onUploadSlotReceived(const QXmppHttpUploadSlotIq& slot)
-{
+void Core::MessageHandler::onUploadSlotReceived(const QXmppHttpUploadSlotIq& slot) {
     if (uploadingSlotsQueue.size() == 0) {
         qDebug() << "HTTP Upload manager of account" << acc->name << "reports about success requesting upload slot, but none was requested";
     } else {
-        const std::pair<QString, QString>& pair = uploadingSlotsQueue.front();
+        const std::pair<QFileInfo, QString>& pair = uploadingSlotsQueue.front();
         const QString& mId = pair.second;
         QString palJid = pendingStateMessages.at(mId);
-        acc->network->uploadFile({acc->name, palJid, mId}, pair.first, slot.putUrl(), slot.getUrl(), slot.putHeaders());
+        acc->network->uploadFile({acc->name, palJid, mId}, pair.first.path(), slot.putUrl(), slot.getUrl(), slot.putHeaders());
         
         uploadingSlotsQueue.pop_front();
-        if (uploadingSlotsQueue.size() > 0) {
+        if (uploadingSlotsQueue.size() > 0)
             acc->um->requestUploadSlot(uploadingSlotsQueue.front().first);
-        }
     }
 }
 
-void Core::MessageHandler::onUploadSlotRequestFailed(const QXmppHttpUploadRequestIq& request)
-{
+void Core::MessageHandler::onUploadSlotRequestFailed(const QXmppHttpUploadRequestIq& request) {
     QString err(request.error().text());
     if (uploadingSlotsQueue.size() == 0) {
         qDebug() << "HTTP Upload manager of account" << acc->name << "reports about an error requesting upload slot, but none was requested";
         qDebug() << err;
     } else {
-        const std::pair<QString, QString>& pair = uploadingSlotsQueue.front();
+        const std::pair<QFileInfo, QString>& pair = uploadingSlotsQueue.front();
         qDebug() << "Error requesting upload slot for file" << pair.first << "in account" << acc->name << ":" << err;
         handleUploadError(pendingStateMessages.at(pair.second), pair.second, err);
         
         uploadingSlotsQueue.pop_front();
-        if (uploadingSlotsQueue.size() > 0) {
+        if (uploadingSlotsQueue.size() > 0)
             acc->um->requestUploadSlot(uploadingSlotsQueue.front().first);
-        }
     }
 }
 
-void Core::MessageHandler::onDownloadFileComplete(const std::list<Shared::MessageInfo>& msgs, const QString& path)
-{
+void Core::MessageHandler::onDownloadFileComplete(const std::list<Shared::MessageInfo>& msgs, const QString& path) {
     QMap<QString, QVariant> cData = {
         {"attachPath", path}
     };
     for (const Shared::MessageInfo& info : msgs) {
-        if (info.account == acc->getName()) {
-            RosterItem* cnt = acc->rh->getRosterItem(info.jid);
-            if (cnt != 0) {
-                if (cnt->changeMessage(info.messageId, cData)) {
-                    emit acc->changeMessage(info.jid, info.messageId, cData);
-                }
-            }
+        if (info.account != acc->getName())
+            continue;
+
+        RosterItem* cnt = acc->rh->getRosterItem(info.jid);
+        if (cnt != nullptr) {
+            bool changed = cnt->changeMessage(info.messageId, cData);
+            if (changed)
+                emit acc->changeMessage(info.jid, info.messageId, cData);
         }
     }
 }
 
-void Core::MessageHandler::onLoadFileError(const std::list<Shared::MessageInfo>& msgs, const QString& text, bool up)
-{
-    if (up) {
-        for (const Shared::MessageInfo& info : msgs) {
-            if (info.account == acc->getName()) {
-                handleUploadError(info.jid, info.messageId, text);
-            }
-        }
-    }
+void Core::MessageHandler::onLoadFileError(const std::list<Shared::MessageInfo>& msgs, const QString& text, bool up) {
+    if (!up)
+        return;
+
+    for (const Shared::MessageInfo& info : msgs)
+        if (info.account == acc->getName())
+            handleUploadError(info.jid, info.messageId, text);
 }
 
-void Core::MessageHandler::handleUploadError(const QString& jid, const QString& messageId, const QString& errorText)
-{
+void Core::MessageHandler::handleUploadError(const QString& jid, const QString& messageId, const QString& errorText) {
     emit acc->uploadFileError(jid, messageId, "Error requesting slot to upload file: " + errorText);
     pendingStateMessages.erase(messageId);
     pendingCorrectionMessages.erase(messageId);
@@ -513,28 +585,27 @@ void Core::MessageHandler::handleUploadError(const QString& jid, const QString&
     });
 }
 
-void Core::MessageHandler::onUploadFileComplete(const std::list<Shared::MessageInfo>& msgs, const QString& url, const QString& path)
-{
+void Core::MessageHandler::onUploadFileComplete(const std::list<Shared::MessageInfo>& msgs, const QString& url, const QString& path) {
     for (const Shared::MessageInfo& info : msgs) {
-        if (info.account == acc->getName()) {
-            RosterItem* ri = acc->rh->getRosterItem(info.jid);
-            if (ri != 0) {
-                Shared::Message msg = ri->getMessage(info.messageId);
-                msg.setAttachPath(path);
-                sendMessageWithLocalUploadedFile(msg, url, false);
-            } else {
-                qDebug() << "A signal received about complete upload to" << acc->name << "for pal" << info.jid << "but the object for this pal wasn't found, something went terrebly wrong, skipping send";
-            }
+        if (info.account != acc->getName())
+            continue;
+
+        RosterItem* ri = acc->rh->getRosterItem(info.jid);
+        if (ri != nullptr) {
+            Shared::Message msg = ri->getMessage(info.messageId);
+            msg.setAttachPath(path);
+            sendMessageWithLocalUploadedFile(msg, url, false);
+        } else {
+            qDebug() << "A signal received about complete upload to" << acc->name << "for pal" << info.jid << "but the object for this pal wasn't found, something went terrebly wrong, skipping send";
         }
     }
 }
 
-void Core::MessageHandler::sendMessageWithLocalUploadedFile(Shared::Message msg, const QString& url, bool newMessage)
-{
+void Core::MessageHandler::sendMessageWithLocalUploadedFile(Shared::Message msg, const QString& url, bool newMessage) {
     msg.setOutOfBandUrl(url);
-    if (msg.getBody().size() == 0) {    //not sure why, but most messages do that
+    if (msg.getBody().size() == 0)      //not sure why, but most messengers do that
         msg.setBody(url);               //they duplicate oob in body, some of them wouldn't even show an attachment if you don't do that
-    }                                   
+
     performSending(msg, pendingCorrectionMessages.at(msg.getId()), newMessage);
     //TODO removal/progress update
 }
@@ -546,10 +617,9 @@ static const std::set<QString> allowedToChangeKeys({
     "errorText"
 });
 
-void Core::MessageHandler::requestChangeMessage(const QString& jid, const QString& messageId, const QMap<QString, QVariant>& data)
-{
+void Core::MessageHandler::requestChangeMessage(const QString& jid, const QString& messageId, const QMap<QString, QVariant>& data) {
     RosterItem* cnt = acc->rh->getRosterItem(jid);
-    if (cnt != 0) {
+    if (cnt != nullptr) {
         bool allSupported = true;
         QString unsupportedString;
         for (QMap<QString, QVariant>::const_iterator itr = data.begin(); itr != data.end(); ++itr) {    //I need all this madness
@@ -569,14 +639,13 @@ void Core::MessageHandler::requestChangeMessage(const QString& jid, const QStrin
     }
 }
 
-void Core::MessageHandler::resendMessage(const QString& jid, const QString& id)
-{
+void Core::MessageHandler::resendMessage(const QString& jid, const QString& id) {
     RosterItem* cnt = acc->rh->getRosterItem(jid);
-    if (cnt != 0) {
+    if (cnt != nullptr) {
         try {
             Shared::Message msg = cnt->getMessage(id);
             if (msg.getState() == Shared::Message::State::error) {
-                if (msg.getEdited()){
+                if (msg.getEdited()) {
                     QString originalId = msg.getId();
                     msg.generateRandomId();
                     sendMessage(msg, false, originalId);
@@ -586,7 +655,7 @@ void Core::MessageHandler::resendMessage(const QString& jid, const QString& id)
             } else {
                 qDebug() << "An attempt to resend a message to" << jid << "by account" << acc->getName() << ", but this message seems to have been normally sent, this method was made to retry sending failed to be sent messages, skipping";
             }
-        } catch (const Archive::NotFound& err) {
+        } catch (const LMDBAL::NotFound& err) {
             qDebug() << "An attempt to resend a message to" << jid << "by account" << acc->getName() << ", but this message wasn't found in history, skipping";
         }
     } else {

core/handlers/messagehandler.h

@@ -16,31 +16,30 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CORE_MESSAGEHANDLER_H
-#define CORE_MESSAGEHANDLER_H
+#pragma once
 
 #include <QObject>
+#include <QFileInfo>
 
 #include <deque>
 #include <map>
+#include <functional>
+#include <optional>
 
 #include <QXmppMessage.h>
 #include <QXmppHttpUploadIq.h>
+#ifdef WITH_OMEMO
+    #include <QXmppE2eeExtension.h>
+#endif
 
 #include <shared/message.h>
 #include <shared/messageinfo.h>
 #include <shared/pathcheck.h>
 
 namespace Core {
-
-/**
- * @todo write docs
- */
-
 class Account;
 
-class MessageHandler : public QObject
-{
+class MessageHandler : public QObject {
     Q_OBJECT
 public:
     MessageHandler(Account* account);
@@ -52,8 +51,10 @@ public:
     
 public slots:
     void onMessageReceived(const QXmppMessage& message);
+#if (QXMPP_VERSION) < QT_VERSION_CHECK(1, 5, 0)
     void onCarbonMessageReceived(const QXmppMessage& message);
     void onCarbonMessageSent(const QXmppMessage& message);
+#endif
     void onReceiptReceived(const QString& jid, const QString& id);    
     void onUploadSlotReceived(const QXmppHttpUploadSlotIq& slot);
     void onUploadSlotRequestFailed(const QXmppHttpUploadRequestIq& request);
@@ -72,15 +73,17 @@ private:
     void handleUploadError(const QString& jid, const QString& messageId, const QString& errorText);
     QXmppMessage createPacket(const Shared::Message& data, const QDateTime& time, const QString& originalId) const;
     QMap<QString, QVariant> getChanges(Shared::Message& data, const QDateTime& time, bool newMessage, const QString& originalId) const;
-    std::tuple<bool, QString, QString> getOriginalPendingMessageId(const QString& id);
+    std::optional<Shared::MessageInfo> getOriginalPendingMessageId(const QString& id, bool clear = true);
+    bool handlePendingMessageError(const QString& id, const QString& errorText);
+    std::pair<Shared::Message::State, QString> scheduleSending(const Shared::Message& message, const QDateTime& sendTime, const QString& originalId);
+    bool adjustPendingMessage(const QString& messageId, const QMap<QString, QVariant>& data, bool final);
+    void initializeIDs(Shared::Message& target, const QXmppMessage& source) const;
     
 private:
     Account* acc;
     std::map<QString, QString> pendingStateMessages;        //key is message id, value is JID
     std::map<QString, QString> pendingCorrectionMessages;   //key is new mesage, value is originalOne
-    std::deque<std::pair<QString, QString>> uploadingSlotsQueue;
+    std::deque<std::pair<QFileInfo, QString>> uploadingSlotsQueue;
 };
 
 }
-
-#endif // CORE_MESSAGEHANDLER_H

core/handlers/omemohandler.cpp

@@ -0,0 +1,285 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QDebug>
+#include "omemohandler.h"
+#include "core/account.h"
+#include "core/adapterfunctions.h"
+
+Core::OmemoHandler::OmemoHandler(Account* account) :
+    QObject(),
+    QXmppOmemoStorage(),
+    acc(account),
+    ownDevice(std::nullopt),
+    db(acc->getName() + "/omemo"),
+    meta(db.addCache<QString, QVariant>("meta")),
+    devices(db.addCache<QString, QHash<uint32_t, Device>>("devices")),
+    preKeyPairs(db.addCache<uint32_t, QByteArray>("preKeyPairs")),
+    signedPreKeyPairs(db.addCache<uint32_t, SignedPreKeyPair>("signedPreKeyPairs"))
+{
+    db.open();
+    try {
+        QVariant own = meta->getRecord("ownDevice");
+        ownDevice = own.value<OwnDevice>();
+        qDebug() << "Successfully found own device omemo data for account" << acc->getName();
+    } catch (const LMDBAL::NotFound& e) {
+        qDebug() << "No device omemo data was found for account" << acc->getName();
+    }
+}
+
+Core::OmemoHandler::~OmemoHandler() {
+    db.close();
+}
+
+bool Core::OmemoHandler::hasOwnDevice() {
+    return ownDevice.has_value();
+}
+
+QXmppTask<QXmppOmemoStorage::OmemoData> Core::OmemoHandler::allData() {
+    OmemoData data;
+    data.ownDevice = ownDevice;
+
+    LMDBAL::Transaction txn = db.beginReadOnlyTransaction();
+    std::map<uint32_t, QByteArray> pkeys = preKeyPairs->readAll(txn);
+    for (const std::pair<const uint32_t, QByteArray>& pair : pkeys)
+        data.preKeyPairs.insert(pair.first, pair.second);
+
+    std::map<uint32_t, SignedPreKeyPair> spre = signedPreKeyPairs->readAll(txn);
+    for (const std::pair<const uint32_t, SignedPreKeyPair>& pair : spre) {
+        QXmppOmemoStorage::SignedPreKeyPair qxpair = {pair.second.first, pair.second.second};
+        data.signedPreKeyPairs.insert(pair.first, qxpair);
+    }
+
+    std::map<QString, QHash<uint32_t, Device>> devs = devices->readAll(txn);
+    for (const std::pair<const QString, QHash<uint32_t, Device>>& pair : devs)
+        data.devices.insert(pair.first, pair.second);
+
+    return Core::makeReadyTask(std::move(data));
+}
+
+QXmppTask<void> Core::OmemoHandler::addDevice(const QString& jid, uint32_t deviceId, const QXmppOmemoStorage::Device& device) {
+    QHash<uint32_t, Device> devs;
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    bool had = true;
+    try {
+        devices->getRecord(jid, devs, txn);
+    } catch (const LMDBAL::NotFound& error) {
+        had = false;
+    }
+
+    devs.insert(deviceId, device);  //overwrites
+    if (had)
+        devices->changeRecord(jid, devs, txn);
+    else
+        devices->addRecord(jid, devs, txn);
+
+    txn.commit();
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::addPreKeyPairs(const QHash<uint32_t, QByteArray>& keyPairs) {
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    for (QHash<uint32_t, QByteArray>::const_iterator itr = keyPairs.begin(), end = keyPairs.end(); itr != end; ++itr)
+        preKeyPairs->forceRecord(itr.key(), itr.value(), txn);
+
+    txn.commit();
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::addSignedPreKeyPair(uint32_t keyId, const QXmppOmemoStorage::SignedPreKeyPair& keyPair) {
+    signedPreKeyPairs->forceRecord(keyId, std::make_pair(keyPair.creationDate, keyPair.data));
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::removeDevice(const QString& jid, uint32_t deviceId) {
+    LMDBAL::WriteTransaction txn = db.beginTransaction();
+    QHash<uint32_t, Device> devs = devices->getRecord(jid, txn);
+    devs.remove(deviceId);
+    if (devs.isEmpty())
+        devices->removeRecord(jid, txn);
+    else
+        devices->changeRecord(jid, devs, txn);
+
+    txn.commit();
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::removeDevices(const QString& jid) {
+    devices->removeRecord(jid);
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::removePreKeyPair(uint32_t keyId) {
+    try {
+        preKeyPairs->removeRecord(keyId);
+    } catch (const LMDBAL::NotFound& e) {
+        qDebug() << "Couldn't remove preKeyPair " << e.what();
+    }
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::removeSignedPreKeyPair(uint32_t keyId) {
+    try {
+        signedPreKeyPairs->removeRecord(keyId);
+    } catch (const LMDBAL::NotFound& e) {}
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::setOwnDevice(const std::optional<OwnDevice>& device) {
+    bool had = ownDevice.has_value();
+    ownDevice = device;
+    if (ownDevice.has_value()) {
+        if (had)
+            meta->changeRecord("ownDevice", QVariant::fromValue(ownDevice.value()));
+        else
+            meta->addRecord("ownDevice", QVariant::fromValue(ownDevice.value()));
+    } else if (had) {
+        meta->removeRecord("ownDevice");
+    }
+    return Core::makeReadyTask();
+}
+
+QXmppTask<void> Core::OmemoHandler::resetAll() {
+    ownDevice = std::nullopt;
+    db.drop();
+
+    return Core::makeReadyTask();
+}
+
+void Core::OmemoHandler::getDevices(const QString& jid, std::list<Shared::KeyInfo>& out) const {
+    QHash<uint32_t, Device> devs;
+    try {
+        devices->getRecord(jid, devs);
+    } catch (const LMDBAL::NotFound& error) {}
+
+    for (QHash<uint32_t, Device>::const_iterator itr = devs.begin(), end = devs.end(); itr != end; ++itr) {
+        const Device& dev = itr.value();
+        out.emplace_back(
+            itr.key(),
+            dev.keyId,
+            dev.label,
+            dev.removalFromDeviceListDate,
+            Shared::TrustLevel::undecided,
+            Shared::EncryptionProtocol::omemo2,
+            false
+        );
+    }
+}
+
+void Core::OmemoHandler::requestBundles(const QString& jid) {
+    QXmppTask<void> task = acc->om->buildMissingSessions({jid});
+    Contact* cnt = acc->rh->getContact(jid);
+    if (cnt)
+        cnt->omemoBundles = Shared::Possible::discovering;
+
+    task.then(this, std::bind(&OmemoHandler::onBundlesReceived, this, jid));
+}
+
+void Core::OmemoHandler::requestOwnBundles() {
+    QXmppTask<void> task = acc->om->buildMissingSessions({acc->getBareJid()});
+    task.then(this, std::bind(&OmemoHandler::onOwnBundlesReceived, this));
+}
+
+void Core::OmemoHandler::onBundlesReceived(const QString& jid) {
+    std::list<Shared::KeyInfo> keys = readKeys(jid);
+
+    Contact* cnt = acc->rh->getContact(jid);
+    if (cnt)
+        cnt->omemoBundles = Shared::Possible::present;
+
+    acc->delay->receivedBundles(jid, keys);
+}
+
+void Core::OmemoHandler::onOwnBundlesReceived() {
+    std::list<Shared::KeyInfo> keys = readKeys(acc->getBareJid());
+    if (ownDevice)
+        keys.emplace_front(
+            ownDevice->id,
+            ownDevice->publicIdentityKey,
+            ownDevice->label,
+            QDateTime::currentDateTime(),
+            Shared::TrustLevel::authenticated,
+            Shared::EncryptionProtocol::omemo2,
+            true
+        );
+
+    acc->delay->receivedOwnBundles(keys);
+}
+
+std::list<Shared::KeyInfo> Core::OmemoHandler::readKeys(const QString& jid) {
+    std::list<Shared::KeyInfo> keys;
+    getDevices(jid, keys);
+    std::map<QByteArray, Shared::TrustLevel> trustLevels = acc->th->getKeys(Shared::EncryptionProtocol::omemo2, jid);
+
+    for (Shared::KeyInfo& key : keys) {
+        std::map<QByteArray, Shared::TrustLevel>::const_iterator itr = trustLevels.find(key.fingerPrint);
+        if (itr != trustLevels.end())
+            key.trustLevel = itr->second;
+    }
+
+    return keys;
+}
+
+void Core::OmemoHandler::onOmemoDeviceAdded(const QString& jid, uint32_t id) {
+    SHARED_UNUSED(id);
+    qDebug() << "OMEMO device added for" << jid;
+}
+
+QDataStream & operator >> (QDataStream& in, QXmppOmemoStorage::Device& device) {
+    in >> device.label;
+    in >> device.keyId;
+    in >> device.session;
+    in >> device.unrespondedSentStanzasCount;
+    in >> device.unrespondedReceivedStanzasCount;
+    in >> device.removalFromDeviceListDate;
+
+    return in;
+}
+
+QDataStream & operator << (QDataStream& out, const QXmppOmemoStorage::Device& device) {
+    out << device.label;
+    out << device.keyId;
+    out << device.session;
+    out << device.unrespondedSentStanzasCount;
+    out << device.unrespondedReceivedStanzasCount;
+    out << device.removalFromDeviceListDate;
+
+    return out;
+}
+
+QDataStream & operator >> (QDataStream& in, QXmppOmemoStorage::OwnDevice& device) {
+    in >> device.id;
+    in >> device.label;
+    in >> device.privateIdentityKey;
+    in >> device.publicIdentityKey;
+    in >> device.latestSignedPreKeyId;
+    in >> device.latestPreKeyId;
+
+    return in;
+}
+
+QDataStream & operator << (QDataStream& out, const QXmppOmemoStorage::OwnDevice& device) {
+    out << device.id;
+    out << device.label;
+    out << device.privateIdentityKey;
+    out << device.publicIdentityKey;
+    out << device.latestSignedPreKeyId;
+    out << device.latestPreKeyId;
+
+    return out;
+}

core/handlers/omemohandler.h

@@ -0,0 +1,90 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <map>
+#include <list>
+#include <functional>
+
+#include <QXmppOmemoStorage.h>
+#include <cache.h>
+
+#include <shared/keyinfo.h>
+#include <shared/enums.h>
+
+Q_DECLARE_METATYPE(QXmppOmemoStorage::OwnDevice);
+Q_DECLARE_METATYPE(QXmppOmemoStorage::Device);
+
+namespace Core {
+class Account;
+
+class OmemoHandler : public QObject, public QXmppOmemoStorage {
+    Q_OBJECT
+public:
+    typedef std::pair<QDateTime, QByteArray> SignedPreKeyPair;
+
+    OmemoHandler(Account* account);
+    ~OmemoHandler() override;
+
+    virtual QXmppTask<OmemoData> allData() override;
+
+    virtual QXmppTask<void> setOwnDevice(const std::optional<OwnDevice> &device) override;
+
+    virtual QXmppTask<void> addSignedPreKeyPair(uint32_t keyId, const QXmppOmemoStorage::SignedPreKeyPair &keyPair) override;
+    virtual QXmppTask<void> removeSignedPreKeyPair(uint32_t keyId) override;
+
+    virtual QXmppTask<void> addPreKeyPairs(const QHash<uint32_t, QByteArray> &keyPairs) override;
+    virtual QXmppTask<void> removePreKeyPair(uint32_t keyId) override;
+
+    virtual QXmppTask<void> addDevice(const QString &jid, uint32_t deviceId, const Device &device) override;
+    virtual QXmppTask<void> removeDevice(const QString &jid, uint32_t deviceId) override;
+    virtual QXmppTask<void> removeDevices(const QString &jid) override;
+
+    virtual QXmppTask<void> resetAll() override;
+
+    bool hasOwnDevice();
+
+    void requestBundles(const QString& jid);
+    void requestOwnBundles();
+    void getDevices(const QString& jid, std::list<Shared::KeyInfo>& out) const;
+
+public slots:
+    void onOmemoDeviceAdded(const QString& jid, uint32_t id);
+
+private slots:
+    void onBundlesReceived(const QString& jid);
+    void onOwnBundlesReceived();
+    std::list<Shared::KeyInfo> readKeys(const QString& jid);
+
+private:
+    Account* acc;
+    std::optional<OwnDevice> ownDevice;
+    LMDBAL::Base db;
+    LMDBAL::Cache<QString, QVariant>* meta;
+    LMDBAL::Cache<QString, QHash<uint32_t, Device>>* devices;
+    LMDBAL::Cache<uint32_t, QByteArray>* preKeyPairs;
+    LMDBAL::Cache<uint32_t, SignedPreKeyPair>* signedPreKeyPairs;
+};
+
+}
+
+QDataStream& operator << (QDataStream &out, const QXmppOmemoStorage::Device& device);
+QDataStream& operator >> (QDataStream &in, QXmppOmemoStorage::Device& device);
+
+QDataStream& operator << (QDataStream &out, const QXmppOmemoStorage::OwnDevice& device);
+QDataStream& operator >> (QDataStream &in, QXmppOmemoStorage::OwnDevice& device);

core/handlers/rosterhandler.cpp

@@ -26,34 +26,41 @@ Core::RosterHandler::RosterHandler(Core::Account* account):
     conferences(),
     groups(),
     queuedContacts(),
-    outOfRosterContacts()
-{
+    outOfRosterContacts() {}
+
+void Core::RosterHandler::initialize() {
     connect(acc->rm, &QXmppRosterManager::rosterReceived, this, &RosterHandler::onRosterReceived);
     connect(acc->rm, &QXmppRosterManager::itemAdded, this, &RosterHandler::onRosterItemAdded);
     connect(acc->rm, &QXmppRosterManager::itemRemoved, this, &RosterHandler::onRosterItemRemoved);
     connect(acc->rm, &QXmppRosterManager::itemChanged, this, &RosterHandler::onRosterItemChanged);
-    
-    
+
+
     connect(acc->mm, &QXmppMucManager::roomAdded, this, &RosterHandler::onMucRoomAdded);
     connect(acc->bm, &QXmppBookmarkManager::bookmarksReceived, this, &RosterHandler::bookmarksReceived);
+
+    connect(acc, &Account::pepSupportChanged, this, &RosterHandler::onPepSupportedChanged);
+
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+    connect(acc->th, &TrustHandler::trustLevelsChanged, this, &RosterHandler::onTrustChanged);
+#endif
 }
 
-Core::RosterHandler::~RosterHandler()
-{
-    for (std::map<QString, Contact*>::const_iterator itr = contacts.begin(), end = contacts.end(); itr != end; ++itr) {
-        delete itr->second;
-    }
-    
-    for (std::map<QString, Conference*>::const_iterator itr = conferences.begin(), end = conferences.end(); itr != end; ++itr) {
-        delete itr->second;
-    }
+Core::RosterHandler::~RosterHandler() {
+    clear();
 }
 
-void Core::RosterHandler::onRosterReceived()
-{
-    acc->vm->requestClientVCard();         //TODO need to make sure server actually supports vCards
-    acc->ownVCardRequestInProgress = true;
-    
+void Core::RosterHandler::clear() {
+    for (const std::pair<const QString, Contact*>& pair : contacts)
+        delete pair.second;
+
+    for (const std::pair<const QString, Conference*>& pair : conferences)
+        delete pair.second;
+
+    contacts.clear();
+    conferences.clear();
+}
+
+void Core::RosterHandler::onRosterReceived() {
     QStringList bj = acc->rm->getRosterBareJids();
     for (int i = 0; i < bj.size(); ++i) {
         const QString& jid = bj[i];
@@ -61,8 +68,7 @@ void Core::RosterHandler::onRosterReceived()
     }
 }
 
-void Core::RosterHandler::onRosterItemAdded(const QString& bareJid)
-{
+void Core::RosterHandler::onRosterItemAdded(const QString& bareJid) {
     QString lcJid = bareJid.toLower();
     addedAccount(lcJid);
     std::map<QString, QString>::const_iterator itr = queuedContacts.find(lcJid);
@@ -72,8 +78,7 @@ void Core::RosterHandler::onRosterItemAdded(const QString& bareJid)
     }
 }
 
-void Core::RosterHandler::addedAccount(const QString& jid)
-{
+void Core::RosterHandler::addedAccount(const QString& jid) {
     std::map<QString, Contact*>::const_iterator itr = contacts.find(jid);
     QXmppRosterIq::Item re = acc->rm->getRosterEntry(jid);
     Contact* contact;
@@ -82,7 +87,6 @@ void Core::RosterHandler::addedAccount(const QString& jid)
         newContact = true;
         contact = new Contact(jid, acc->name);
         contacts.insert(std::make_pair(jid, contact));
-        
     } else {
         contact = itr->second;
     }
@@ -94,70 +98,44 @@ void Core::RosterHandler::addedAccount(const QString& jid)
     contact->setName(re.name());
     
     if (newContact) {
-        QMap<QString, QVariant> cData({
-            {"name", re.name()},
-            {"state", QVariant::fromValue(state)}
-        });
-        
-        careAboutAvatar(contact, cData);
+        handleNewContact(contact);
+        QMap<QString, QVariant> cData = contact->getInfo();
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+        cData.insert("trust", QVariant::fromValue(acc->th->getSummary(jid)));
+#endif
         int grCount = 0;
-        for (QSet<QString>::const_iterator itr = gr.begin(), end = gr.end(); itr != end; ++itr) {
-            const QString& groupName = *itr;
+        for (const QString& groupName : gr) {
             addToGroup(jid, groupName);
             emit acc->addContact(jid, groupName, cData);
             grCount++;
         }
         
-        if (grCount == 0) {
+        if (grCount == 0)
             emit acc->addContact(jid, "", cData);
+
+        if (acc->pepSupport == Shared::Support::supported) {
+            acc->dm->requestInfo(jid);
+            //acc->dm->requestItems(jid);
         }
-        handleNewContact(contact);
     }
 }
 
-void Core::RosterHandler::addNewRoom(const QString& jid, const QString& nick, const QString& roomName, bool autoJoin)
-{
+void Core::RosterHandler::addNewRoom(const QString& jid, const QString& nick, const QString& roomName, bool autoJoin) {
     QXmppMucRoom* room = acc->mm->addRoom(jid);
     QString lNick = nick;
-    if (lNick.size() == 0) {
+    if (lNick.size() == 0)
         lNick = acc->getName();
-    }
+
     Conference* conf = new Conference(jid, acc->getName(), autoJoin, roomName, lNick, room);
     conferences.insert(std::make_pair(jid, conf));
     
     handleNewConference(conf);
     
-    QMap<QString, QVariant> cData = {
-        {"autoJoin", conf->getAutoJoin()},
-        {"joined", conf->getJoined()},
-        {"nick", conf->getNick()},
-        {"name", conf->getName()},
-        {"avatars", conf->getAllAvatars()}
-    };
-    careAboutAvatar(conf, cData);
+    QMap<QString, QVariant> cData = conf->getInfo();
     emit acc->addRoom(jid, cData);
 }
 
-void Core::RosterHandler::careAboutAvatar(Core::RosterItem* item, QMap<QString, QVariant>& data)
-{
-    Archive::AvatarInfo info;
-    bool hasAvatar = item->readAvatarInfo(info);
-    if (hasAvatar) {
-        if (info.autogenerated) {
-            data.insert("avatarState", QVariant::fromValue(Shared::Avatar::autocreated));
-        } else {
-            data.insert("avatarState", QVariant::fromValue(Shared::Avatar::valid));
-        }
-        data.insert("avatarPath", item->avatarPath() + "." + info.type);
-    } else {
-        data.insert("avatarState", QVariant::fromValue(Shared::Avatar::empty));
-        data.insert("avatarPath", "");
-        acc->requestVCard(item->jid);
-    }
-}
-
-void Core::RosterHandler::addContactRequest(const QString& jid, const QString& name, const QSet<QString>& groups)
-{
+void Core::RosterHandler::addContactRequest(const QString& jid, const QString& name, const QSet<QString>& groups) {
     if (acc->state == Shared::ConnectionState::connected) {
         std::map<QString, QString>::const_iterator itr = queuedContacts.find(jid);
         if (itr != queuedContacts.end()) {
@@ -171,8 +149,7 @@ void Core::RosterHandler::addContactRequest(const QString& jid, const QString& n
     }
 }
 
-void Core::RosterHandler::removeContactRequest(const QString& jid)
-{
+void Core::RosterHandler::removeContactRequest(const QString& jid) {
     QString lcJid = jid.toLower();
     if (acc->state == Shared::ConnectionState::connected) {
         std::set<QString>::const_iterator itr = outOfRosterContacts.find(lcJid);
@@ -187,25 +164,23 @@ void Core::RosterHandler::removeContactRequest(const QString& jid)
     }
 }
 
-void Core::RosterHandler::handleNewRosterItem(Core::RosterItem* contact)
-{
+void Core::RosterHandler::handleNewRosterItem(Core::RosterItem* contact) {
     connect(contact, &RosterItem::needHistory, this->acc, &Account::onContactNeedHistory);
     connect(contact, &RosterItem::historyResponse, this->acc, &Account::onContactHistoryResponse);
     connect(contact, &RosterItem::nameChanged, this, &RosterHandler::onContactNameChanged);
     connect(contact, &RosterItem::avatarChanged, this, &RosterHandler::onContactAvatarChanged);
-    connect(contact, &RosterItem::requestVCard, this->acc, &Account::requestVCard);
+    connect(contact, &RosterItem::encryptionChanged, this, &RosterHandler::onContactEncryptionChanged);
+    connect(contact, &RosterItem::requestVCard, acc->delay, &DelayManager::Manager::getVCard);
 }
 
-void Core::RosterHandler::handleNewContact(Core::Contact* contact)
-{
+void Core::RosterHandler::handleNewContact(Core::Contact* contact) {
     handleNewRosterItem(contact);
     connect(contact, &Contact::groupAdded, this, &RosterHandler::onContactGroupAdded);
     connect(contact, &Contact::groupRemoved, this, &RosterHandler::onContactGroupRemoved);
     connect(contact, &Contact::subscriptionStateChanged, this, &RosterHandler::onContactSubscriptionStateChanged);
 }
 
-void Core::RosterHandler::handleNewConference(Core::Conference* contact)
-{
+void Core::RosterHandler::handleNewConference(Core::Conference* contact) {
     handleNewRosterItem(contact);
     connect(contact, &Conference::nickChanged, this, &RosterHandler::onMucNickNameChanged);
     connect(contact, &Conference::subjectChanged, this, &RosterHandler::onMucSubjectChanged);
@@ -216,78 +191,74 @@ void Core::RosterHandler::handleNewConference(Core::Conference* contact)
     connect(contact, &Conference::removeParticipant, this, &RosterHandler::onMucRemoveParticipant);
 }
 
-void Core::RosterHandler::onMucAddParticipant(const QString& nickName, const QMap<QString, QVariant>& data)
-{
+void Core::RosterHandler::onMucAddParticipant(const QString& nickName, const QMap<QString, QVariant>& data) {
     Conference* room = static_cast<Conference*>(sender());
     emit acc->addRoomParticipant(room->jid, nickName, data);
 }
 
-void Core::RosterHandler::onMucChangeParticipant(const QString& nickName, const QMap<QString, QVariant>& data)
-{
+void Core::RosterHandler::onMucChangeParticipant(const QString& nickName, const QMap<QString, QVariant>& data) {
     Conference* room = static_cast<Conference*>(sender());
     emit acc->changeRoomParticipant(room->jid, nickName, data);
 }
 
-void Core::RosterHandler::onMucRemoveParticipant(const QString& nickName)
-{
+void Core::RosterHandler::onMucRemoveParticipant(const QString& nickName) {
     Conference* room = static_cast<Conference*>(sender());
     emit acc->removeRoomParticipant(room->jid, nickName);
 }
 
-void Core::RosterHandler::onMucSubjectChanged(const QString& subject)
-{
+void Core::RosterHandler::onMucSubjectChanged(const QString& subject) {
     Conference* room = static_cast<Conference*>(sender());
-    emit acc->changeRoom(room->jid, {
-        {"subject", subject}
-    });
+    emit acc->changeRoom(room->jid, {{"subject", subject}});
 }
 
-void Core::RosterHandler::onContactGroupAdded(const QString& group)
-{
+void Core::RosterHandler::onContactGroupAdded(const QString& group) {
     Contact* contact = static_cast<Contact*>(sender());
     if (contact->groupsCount() == 1) {
         // not sure i need to handle it here, the situation with grouped and ungrouped contacts handled on the client anyway
     }
-    
+
     QMap<QString, QVariant> cData({
         {"name", contact->getName()},
-        {"state", QVariant::fromValue(contact->getSubscriptionState())}
+        {"state", QVariant::fromValue(contact->getSubscriptionState())},
+#if (QXMPP_VERSION) >= QT_VERSION_CHECK(1, 5, 0)
+        {"trust", QVariant::fromValue(acc->th->getSummary(contact->jid))},
+#endif
+        {"encryption", QVariant::fromValue(contact->encryption())}
     });
     addToGroup(contact->jid, group);
     emit acc->addContact(contact->jid, group, cData);
 }
 
-void Core::RosterHandler::onContactGroupRemoved(const QString& group)
-{
+void Core::RosterHandler::onContactGroupRemoved(const QString& group) {
     Contact* contact = static_cast<Contact*>(sender());
     if (contact->groupsCount() == 0) {
         // not sure i need to handle it here, the situation with grouped and ungrouped contacts handled on the client anyway
     }
-    
+
     emit acc->removeContact(contact->jid, group);
     removeFromGroup(contact->jid, group);
 }
 
-void Core::RosterHandler::onContactNameChanged(const QString& cname)
-{
-    Contact* contact = static_cast<Contact*>(sender());
-    QMap<QString, QVariant> cData({
-        {"name", cname},
-    });
-    emit acc->changeContact(contact->jid, cData);
+void Core::RosterHandler::onContactNameChanged(const QString& cname) {
+    RosterItem* contact = static_cast<RosterItem*>(sender());
+    emit acc->changeContact(contact->jid, {{"name", cname}});
 }
 
-void Core::RosterHandler::onContactSubscriptionStateChanged(Shared::SubscriptionState cstate)
-{
-    Contact* contact = static_cast<Contact*>(sender());
-    QMap<QString, QVariant> cData({
-        {"state", QVariant::fromValue(cstate)},
-    });
-    emit acc->changeContact(contact->jid, cData);
+void Core::RosterHandler::onContactEncryptionChanged(Shared::EncryptionProtocol value) {
+    RosterItem* contact = static_cast<RosterItem*>(sender());
+    emit acc->changeContact(contact->jid, {{"encryption", QVariant::fromValue(value)}});
 }
 
-void Core::RosterHandler::addToGroup(const QString& jid, const QString& group)
-{
+void Core::RosterHandler::onContactSubscriptionStateChanged(Shared::SubscriptionState cstate) {
+    Contact* contact = static_cast<Contact*>(sender());
+    emit acc->changeContact(contact->jid, {{"state", QVariant::fromValue(cstate)}});
+}
+
+void Core::RosterHandler::onTrustChanged(const QString& jid, const Shared::TrustSummary& trust) {
+    emit acc->changeContact(jid, {{"trust", QVariant::fromValue(trust)}});
+}
+
+void Core::RosterHandler::addToGroup(const QString& jid, const QString& group) {
     std::map<QString, std::set<QString>>::iterator gItr = groups.find(group);
     if (gItr == groups.end()) {
         gItr = groups.insert(std::make_pair(group, std::set<QString>())).first;
@@ -296,8 +267,7 @@ void Core::RosterHandler::addToGroup(const QString& jid, const QString& group)
     gItr->second.insert(jid.toLower());
 }
 
-void Core::RosterHandler::removeFromGroup(const QString& jid, const QString& group)
-{
+void Core::RosterHandler::removeFromGroup(const QString& jid, const QString& group) {
     QSet<QString> toRemove;
     std::map<QString, std::set<QString>>::iterator itr = groups.find(group);
     if (itr == groups.end()) {
@@ -315,58 +285,53 @@ void Core::RosterHandler::removeFromGroup(const QString& jid, const QString& gro
     }
 }
 
-Core::RosterItem * Core::RosterHandler::getRosterItem(const QString& jid)
-{
-    RosterItem* item = 0;
+Core::RosterItem* Core::RosterHandler::getRosterItem(const QString& jid) {
+    RosterItem* item = nullptr;
     QString lcJid = jid.toLower();
     std::map<QString, Contact*>::const_iterator citr = contacts.find(lcJid);
     if (citr != contacts.end()) {
         item = citr->second;
     } else {
         std::map<QString, Conference*>::const_iterator coitr = conferences.find(lcJid);
-        if (coitr != conferences.end()) {
+        if (coitr != conferences.end())
             item = coitr->second;
-        }
     }
     return item;
 }
 
-Core::Conference * Core::RosterHandler::getConference(const QString& jid)
-{
+Core::Conference* Core::RosterHandler::getConference(const QString& jid) {
     Conference* item = 0;
     std::map<QString, Conference*>::const_iterator coitr = conferences.find(jid.toLower());
-    if (coitr != conferences.end()) {
+    if (coitr != conferences.end())
         item = coitr->second;
-    }
+
     return item;
 }
 
-Core::Contact * Core::RosterHandler::getContact(const QString& jid)
-{
+Core::Contact* Core::RosterHandler::getContact(const QString& jid) {
     Contact* item = 0;
     std::map<QString, Contact*>::const_iterator citr = contacts.find(jid.toLower());
-    if (citr != contacts.end()) {
+    if (citr != contacts.end())
         item = citr->second;
-    }
+
     return item;
 }
 
-Core::Contact * Core::RosterHandler::addOutOfRosterContact(const QString& jid)
-{
+Core::Contact* Core::RosterHandler::addOutOfRosterContact(const QString& jid) {
     QString lcJid = jid.toLower();
     Contact* cnt = new Contact(lcJid, acc->name);
     contacts.insert(std::make_pair(lcJid, cnt));
     outOfRosterContacts.insert(lcJid);
     cnt->setSubscriptionState(Shared::SubscriptionState::unknown);
     emit acc->addContact(lcJid, "", QMap<QString, QVariant>({
-        {"state", QVariant::fromValue(Shared::SubscriptionState::unknown)}
+        {"state", QVariant::fromValue(Shared::SubscriptionState::unknown)},
+        {"encryption", QVariant::fromValue(Shared::EncryptionProtocol::none)}
     }));
     handleNewContact(cnt);
     return cnt;
 }
 
-void Core::RosterHandler::onRosterItemChanged(const QString& bareJid)
-{
+void Core::RosterHandler::onRosterItemChanged(const QString& bareJid) {