veyon-4.7.0-bp155.2.19

- Update to version 4.7.0.
  * Core
  * Fixed binary compatibility issues between different versions
    of LibVNCServer/LibVNCClient.
  * Messages in log files (especially debug messages) are now
    much more human readable.
  * Plugins
  * Demo: Screens in the Demo menu are now displayed with their
    actual hardware name and connector type/index.
  * LDAP: Fixed querying members of a group when the nested
    groups option is enabled.
  * TextMessage: Students can now select and copy the text
    message or parts of it.
  * TextMessage: Rich text
    (i.e. formatted text including hyperlinks) can now be
    entered and sent to students.
  * RemoteAccess: For remote computers with multiple screens, a
    button with a screen selection menu has been added.
  * RemoteAccess: The login name of the remote user is shown in
    the window title, if the full name is not available.
  * WebAPI: The header field lookup (e.g. for the connection UID)
    is now case insensitive.
  * Linux
  * The parameter order for the ping utility has been improved.
  * Issues regarding the session identification have been fixed,
    solving various issues when running veyon-server manually
    e.g. via autostart entries.
  * Master
  * A regression in Veyon 4.6.0 has been fixed to make the
    computer and user search case insensitive again.
  * Control messages between computers are now sent asynchronously
    which improves performance and responsiveness while reducing
    the CPU load.
  * When closing the program, it now stops all features on the
    student computers and waits until all corresponding control
    messages have been sent.
  * A new filter button has been added to show computers with
    logged on users only.
  * The dialog for confirming actions such as powering off
    computers only emphasizes ALL computers if all computers are
    selected.
  * If available, the full name of the user is now preferred in
    the tooltip.
  * Server
  * Server-side framebuffer update rate control has been added
    which improves performance and responsive.

- Update to version 4.6.0.
  * Core
  * Protocol errors during the initial authentication phase are
    handled more reliably. This fixes problems when connecting to
    incompatible servers accidentally.
  * CLI
  * The plugin and feature modules have been added.
  * The config and shell plugins have been integrated as static
    modules.
  * Plugins
  * Demo: The visual feedback when (re-)connecting has been
    redesigned.
  * DesktopServices: The Run program feature has been renamed to
    Start application.
  * RemoteAccess: The visual feedback when (re-)connecting has
    been redesigned.
  * RemoteAccess: The computer connection of the main window is
    reused if available resulting in immediate access to the remote
    computer.
  * RemoteAccess: The remote cursor is no longer used in view
    only mode to prevent occasionally observed render artifacts.
  * UserSessionControl: Non-user sessions (such as display
    manager/login screen sessions) are no longer terminated by the
    user logoff feature.
  * WebAPI: An error code has been added to report protocol
    errors occuring while connecting to the Veyon Server.
  * WebAPI: The connection limit is enforced at the HTTP server
    level already to properly report the connection limit reached
    error instead of timing out.
  * WebAPI: Skip ping for hosts which no connection could be
    established to. This allows using a higher connection limit
    on Linux when the number of open file descriptors is limited.
  * Master
  * In addition to the hostname, the computer display name is
    shown in the tooltip of a computer.
  * A computer's screen is shown in fullscreen and realtime while
    pressing and holding the left mouse button on a computer.
  * For Linux clients, [no user] is displayed as the user name
    instead of the name of the display manager user.
  * Server
  * Hostnames of connected computers
    (shown in the tooltip of the tray icon) are now reverse
    resolved in background to keep connections responsive.
  * Linux
  * SHM support is being detected more reliably.
  * Logging off users is now initiated properly through the
    environment-specific session manager while systemd-logind
    is used as fallback only. This fixes the display manager
    (especially GDM3) not being shown again after logoff.
  * Reboot and power down via systemd-logind has been improved
    while the environment-specific session manager is used as
    fallback only. The reboot and poweroff binaries are not usedany longer.

- Update to version 4.5.7.
  * Core: allow minus characters in authentication key name
  * Linux: x11vnc: auto-detect SHM support – fixes server crashing
    on start in case of lacking SHM support (no need to manually
    configure -noshm as extra parameter any longer)
  * Linux: fix Veyon session ID detection in case desktop session
    path and ID do not match – fixes occasionally broken multi
    session support
  * WebAPI: improve TLS-related error messages

- Update to version 4.5.6.
  * AuthKeys: make import fail when passing a filename as first
    argument
  * Core: set up application parameters earlier to silence warning
  * Core: fix loading Qt translations on Linux so file dialogs,
    message boxes etc. are now localized properly
  * Core: configure layout direction based on default locale
  * Core: use uniform button layout for DesktopAccessDialog across
    all platforms and desktop environments
  * Demo: only start client inside user sessions
  * LDAP: add support for nested user groups (AD only)
  * Linux: fix login key sequence selection
  * Linux: use libvnccserver provided by distribution if recent
    enough
  * Master: fix crash when activating computers with invalid/empty
    hostname
  * Master: indicate invalid/empty host address in tooltip
  * PowerControl, UserSessionControl: improve confirmation dialog
    when performing operations such as shutdown or reboot on all
    computers
  * ScreenLock: only lock screen inside user sessions

- Update to version 4.5.5.
  * Core: set OpenGL context sharing flag for proper functionality
    of the Qt WebEngine WebTabs backend
  * Demo: fix freezing/stopping screen broadcasting when Veyon
    Master is configured to enforce selected mode for client
    computers
  * Demo: fix context menu for computers to properly show
    "Stop demo" for any active screen sharing mode
  * Service: Windows: fix memory leak
  * Linux: make minimum session lifetime before server start
    configurable
  * Linux: only consider graphically logged in users for access
    control rule condition "No user logged in"

- Trim metadata redundancies from descriptions. Fixup grammar.

- Update to version 4.5.4.
  * Core: fix potential crash due to race condition on shutdown
  * Demo: refactor server shutdown for better reliability
  * Demo: refactor demo server control for better reliability
    (demo server is now restarted automatically when crashed)
  * Linux: ignore missing DPMS for xrdp sessions
  * Linux: make key sequence for user login via display manager
    fully configurable
  * Linux: use session path as session ID to avoid missing updates
    on closed sessions
  * Linux: x11vnc: disable SHM for xrdp sessions
  * Master: improve save/restore of checked locations/computers to
    better handle dynamic changes when using the NetworkDiscovery
    add-on
  * Service: always close sessions internally properly so session
    IDs are reused correctly
  * Service: Linux: prevent service from killing itself in some
    cases
  * Service: Linux: send SIGINT/SIGTERM/SIGKILL recursively to
    terminate server instances and child processes more reliably
  * Service: Linux: decrease grace period for server processes
  * Service: Linux: actively stop server for closing sessions
  * Various PCH-related build system improvements
  * Update translations

- Update to version 4.5.3.
  * BuiltinX11VncServer: add missing return value
  * Core: fix hostname conversion if FQDN resolving fails
  * Core: improve hostname resolution reliability
  * Core: update active features after every feature status change
  * Core: improve parsing port number for IPv6
  * Configurator: add scrollbars to configuration pages if they
    don't fit on the screen
  * Demo: fix memory leak on connection error
  * Demo: fix VNC server port detection to properly work with
    external VNC servers
  * Demo: fix broadcasting of individual screens if placed out of
    order
  * Demo: fix stopping demo mode via context menu
  * Master: fix automatic reload of screenshot list on filesystem
    changes
  * Master: fix minor issues in Linux manpage
  * Linux: drop kdesudo/gksudo support
  * WebAPI: qthttpserver: switch to master branch
  * WebAPI: refactor to multithreaded implementation supporting
    asynchronous requests
  * WebAPI: increase default connection limit to 32
  * WebAPI: add status fields to feature list
  * Internal build system improvements for shorter build times
  * Update translations
- Disable PCH build, cause build to fail.

- Update to version 4.5.2.
  * Core: add support for building with ninja
  * LDAP: update 3rdparty component kldap
  * LDAP: add warning on invalid location groups
  * Linux: update 3rdparty component x11vnc to fix CVE-2020-29074
  * Linux: debug server crashes using catchsegv
  * Linux: forward server log messages to system journal
  * RemoteAccess: add option to show window on the same screen as
    the master window
  * RemoteAccess: use non-deprecated API call to fix build with
    Qt >= 5.15.2
  * WebAPI: add Python client implementation + tests

- Update to version 4.5.1.
  * Core: fix key name conversion for arguments when invoking
    features
  * Master: properly reload screenshot list also when using
    screenshot directories on network shares
  * Master: add support for deleting multiple screenshots
  * Master: fix bug with initial computer icon layout
  * Master: update icon sizes and their aspect ratios dynamically
    whenever a computer is added, connected or removed
  * Master: improve icon size auto adjust functionality when
    adding/removing multiple computers
  * Master: add dedicated icon for computers not running the Veyon
    Server
  * Master: only show connected computers in slideshow panel
  * Master: fix issue with icons overlapping user name and/or
    computer name
  * Screenshot: fix non-working feature invocation
  * Server: notify first successful access control pass only
- Remove group tag.

- Update to version 4.5.0.
  * Core: improve invocation of worker processes for better
    reliability
  * Core: improve message exchange with worker processes
    (fixes demo mode not starting properly in some cases)
  * Core: implement session ID management to reuse a session ID
    after a session has been closed - RDP session IDs (which are
    increased continuously) are no longer used for calculating
    server port numbers
  * Core: rename configuration key Service/PrimaryServicePort to
    Service/VeyonServerPort
  * Core: refactor feature plugin API
  * Configurator: Service: improve session mode configuration UI
  * Configurator: Service: improve network configuration UI
  * Configurator: Master: add option to hide own session
  * Configurator: Master: add computer icon spacing setting
  * Configurator: Master: add computer icon aspect ratio setting
  * Demo: refactor server to be multithreaded which greatly
    improves performance and responsiveness especially with many
    clients
  * Demo: add feature to share a user's screen instead of the own
    one
  * Demo: reset access token after stopping server
  * Demo: refactor modes (window/fullscreen) as subfeatures
    displayed in a drop down menu
  * Demo: add feature to share only one of multiple (own) screens
  * FileTransfer: add configuration page allowing to configure
    source and destination folders
  * Linux: ignore SIGPIPE and continue running normally if a socket
    is closed unexpectedly
  * Linux: fix missing dependencies in Ubuntu 20.04 package
  * Linux: fix and prefer reboot/poweroff via systemd-logind
  * Linux: fix reboot/poweroff if e.g. /sbin or /usr/sbin is not
    in PATH
  * Linux: don't show output of internal systemctl calls
  * Linux: add Debian-gdm as display manager user to properly
    detect that no user is being logged in
  * Linux: Service: retry server start for sessions in opening
    state
  * Linux: Service: manually set environment variable
    XDG_SESSION_ID if pam-systemd is not used
  * Linux: Service: start server instances for active/online
    sessions only - fixes various issues regarding server start on
    user login
  * Master: add Slideshow panel
  * Master: add Spotlight panel
  * Master: always adjust the size of computer icons automatically
    when enabled
  * Master: save and restore states and sizes of panels
  * Master: automatically adjust aspect ratio of computer icons to
    the original screen sizes
  * Master: update already visible tooltips for computer icons
  * Master: make computer icon spacing configurable and decrease
    its default value
  * RemoteAccess: show username in window title
  * RemoteAccess: hide toolbar on focus loss
  * ScreenLock: fix lock widget not being shown and thus screen not
    being locked on some Linux desktops
  * Server: also notify about authentication failure on incomplete
    authentication attempts
  * Server: add support for external VNC servers without any
    authentication/password configured
  * Server: improve error handling for VNC server plugins
  * WebAPI: add new plugin offering a RESTful API for accessing
    Veyon Server instances

- Update to version 4.4.2.
  * Core: extend NetworkObject API for future use by add-ons
  * Core: prepare support for future WebAPI plugin
  * Update translations

- Update to version 4.4.1.
  * Core: improve multi session support
  * Core: improve worker execution and fix tray icon not being
    shown on startup
  * Demo: broadcast actual teacher session instead of console
    session when running Master within RDP session
  * LDAP: fix computer query on host name lookup error
  * Linux: don't use functions marked deprecated in Qt 5.15
  * Linux: provide package for openSUSE 15.2
  * NetworkObjects: update existing objects instead of adding
    duplicate objects when importing CSV / text file
  * NetworkObjects: output proper line endings when exporting to
    CSV / text file on Windows
  * Server: fix crash on connection accept error
  * Update translations

- Update to version 4.4.0.
  * Core: use updated VNC and network stack (libvncserver 0.9.13.)
  * Core: make VNC connection parameters configurable internally
  * Core: improve VNC connection reliability
  * Core: add safe mechanism for opening files preventing symlink
    attacks
  * Core: drop log messages exceeding size limit
  * DesktopServices: improve URL handler invocation (fixes opening
    URLs with characters such as "=")
  * RemoteAccess: honor feature configuration (hide view only
    button when corresponding feature is disabled)
  * Fix possible symlink attacks on log files
  * Update translations

- make all executables correctly position-independent.

- Fix veyon not starting: error while loading shared libraries.

- Update to version 4.3.5.
  * Fix: LDAP: make SSL/LDAPS connections work properls (previously
    broken due to improper certificate verifications)
  * Fix: LDAP: enable additional low-level debug messages at the
    command line via environment variable VEYON_DEBUG_LDAP_LIBRARY
  * Update 3rdparty component libvncserver to latest 0.9.13
    snapshot (including new unified connection timeout handling
    support)
  * Master: limit update interval to 10 seconds to prevent server
    timeouts
  * Fix build with Qt >= 5.14
  * Minor code modernizations
  * Update translations

- Clean up building.

- initial version 4.0.3