... magic!
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96
ssh-agent-screenlock_v4.sh
Executable file
96
ssh-agent-screenlock_v4.sh
Executable file
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#!/bin/bash
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#
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# SSH-Agent Neustart beim Bildschirmschoner (MATE Desktop)
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# Dieses Script startet den ssh-agent neu, wenn der Bildschirm gesperrt wird
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#
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# Check for existing instance
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pid_file="$HOME/.ssh-agent-watchdog.pid"
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if [ -f "$pid_file" ]; then
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old_pid=$(cat "$pid_file")
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if kill -0 "$old_pid" 2>/dev/null; then
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echo "Watchdog läuft bereits (PID: $old_pid). Beende alte Instanz..."
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kill "$old_pid"
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fi
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fi
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echo $$ > "$pid_file"
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STOP_LOCK="$HOME/.ssh-agent-watchdog.pause"
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log_message() {
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echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE"
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}
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restart_ssh_agent() {
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# Check if we are "paused" for large transfers
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if [ -f "$STOP_LOCK" ]; then
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log_message "SKIP: Bildschirm gesperrt, aber 'Deep Work' Modus aktiv (Pause-File gefunden)."
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return
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fi
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log_message "Bildschirm gesperrt - SSH-Agent wird neu gestartet"
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# Alte ssh-agent Prozesse beenden
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if [ -n "$SSH_AGENT_PID" ]; then
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kill "$SSH_AGENT_PID" 2>/dev/null
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log_message "SSH-Agent PID $SSH_AGENT_PID beendet"
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fi
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# Alle ssh-agent Prozesse des aktuellen Users beenden
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pkill -u "$USER" ssh-agent
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# SSH-Agent Umgebungsvariablen löschen
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unset SSH_AUTH_SOCK
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unset SSH_AGENT_PID
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# Alten Socket entfernen, falls vorhanden
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rm -f "$SOCKET_PATH"
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# Neuen ssh-agent starten und direkt an fixen Pfad binden
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# -a: bind address (socket path)
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eval "$(ssh-agent -a "$SOCKET_PATH" -s)" > /dev/null 2>&1
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# Check if agent started successfully
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if [ -z "$SSH_AGENT_PID" ]; then
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log_message "FEHLER: SSH-Agent konnte nicht gestartet werden"
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return
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fi
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# Umgebungsvariablen in Datei speichern für andere Terminals
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# Dateiname angepasst an .bashrc des Users: ~/.ssh/agent-environment
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cat > "$HOME/.ssh/agent-environment" <<EOF
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export SSH_AUTH_SOCK=$SOCKET_PATH
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export SSH_AGENT_PID=$SSH_AGENT_PID
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EOF
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log_message "Neuer SSH-Agent gestartet (PID: $SSH_AGENT_PID, Socket: $SOCKET_PATH)"
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}
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# Cleanup bei Script-Ende
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cleanup() {
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rm -f "$pid_file"
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log_message "Watchdog beendet."
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exit 0
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}
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trap cleanup SIGINT SIGTERM
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# Sicherstellen, dass der Bildschirmschoner auch wirklich sperrt
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gsettings set org.mate.screensaver lock-enabled true 2>/dev/null
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# Grace-Period abschalten (Sofort sperren)
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gsettings set org.mate.screensaver lock-delay 0 2>/dev/null
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log_message "Bildschirm-Sperre erzwungen (lock-enabled true, lock-delay 0)"
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log_message "Watchdog gestartet (PID $$)."
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# Auf MATE Screensaver Events hören
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dbus-monitor --session "type='signal',interface='org.mate.ScreenSaver',member='ActiveChanged'" 2>/dev/null |
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while read -r line; do
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if echo "$line" | grep -q "boolean true"; then
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# Sofort sperren anfordern, falls noch nicht geschehen
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mate-screensaver-command --lock 2>/dev/null
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restart_ssh_agent
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# TODO: Idee - Terminal Hintergrund ändern via DBus (sehr spezifisch für Mate Terminal)
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# Experimentell: gsettings set org.mate.terminal.profile:/org/mate/terminal/profiles/default/ background-color '#000000'
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fi
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done
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