93 lines
3.2 KiB
Bash
Executable File
93 lines
3.2 KiB
Bash
Executable File
#!/bin/bash
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# shellcheck source=start-utils
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. "${SCRIPTS:-/}start-utils"
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: "${SERVER_PORT:=25565}"
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: "${ENABLE_AUTOPAUSE:=false}"
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: "${AUTOPAUSE_TIMEOUT_EST:=3600}"
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: "${AUTOPAUSE_TIMEOUT_KN:=120}"
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: "${AUTOPAUSE_TIMEOUT_INIT:=600}"
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: "${AUTOPAUSE_PERIOD:=10}"
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: "${AUTOPAUSE_KNOCK_INTERFACE:=eth0}"
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: "${DEBUG_AUTOPAUSE:=false}"
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export SERVER_PORT
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export ENABLE_AUTOPAUSE
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export AUTOPAUSE_TIMEOUT_EST
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export AUTOPAUSE_TIMEOUT_KN
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export AUTOPAUSE_TIMEOUT_INIT
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export AUTOPAUSE_PERIOD
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export AUTOPAUSE_KNOCK_INTERFACE
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export DEBUG_AUTOPAUSE
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log "Autopause functionality enabled"
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isDebugging && set -x
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cp /auto/knockd-config.cfg /tmp/knockd-config.cfg
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# update server port to listen to
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regseq="^\s*sequence\s*=\s*$SERVER_PORT\s*$"
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linenum=$(grep -nm1 sequence /tmp/knockd-config.cfg | cut -d : -f 1 | tail -n1)
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if ! [[ $(awk "NR==$linenum" /tmp/knockd-config.cfg) =~ $regseq ]]; then
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sed -i "${linenum}s/sequence.*/sequence = $SERVER_PORT/" /tmp/knockd-config.cfg
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log "Updated server port in knockd config"
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fi
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# update rcon port to listen to
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regseq="^\s*sequence\s*=\s*$RCON_PORT\s*$"
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linenum=$(grep -nm2 sequence /tmp/knockd-config.cfg | cut -d : -f 1 | tail -n1)
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if ! [[ $(awk "NR==$linenum" /tmp/knockd-config.cfg) =~ $regseq ]]; then
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sed -i "${linenum}s/sequence.*/sequence = $RCON_PORT/" /tmp/knockd-config.cfg
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log "Updated rcon port in knockd config"
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fi
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if ! [[ $AUTOPAUSE_PERIOD =~ ^[0-9]+$ ]]; then
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AUTOPAUSE_PERIOD=10
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export AUTOPAUSE_PERIOD
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log "Warning: AUTOPAUSE_PERIOD is not numeric, set to 10 (seconds)"
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fi
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if [ "$AUTOPAUSE_PERIOD" -eq "0" ] ; then
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AUTOPAUSE_PERIOD=10
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export AUTOPAUSE_PERIOD
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log "Warning: AUTOPAUSE_PERIOD must not be 0, set to 10 (seconds)"
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fi
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if ! [[ $AUTOPAUSE_TIMEOUT_KN =~ ^[0-9]+$ ]] ; then
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AUTOPAUSE_TIMEOUT_KN=120
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export AUTOPAUSE_TIMEOUT_KN
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log "Warning: AUTOPAUSE_TIMEOUT_KN is not numeric, set to 120 (seconds)"
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fi
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if ! [[ $AUTOPAUSE_TIMEOUT_EST =~ ^[0-9]+$ ]] ; then
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AUTOPAUSE_TIMEOUT_EST=3600
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export AUTOPAUSE_TIMEOUT_EST
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log "Warning: AUTOPAUSE_TIMEOUT_EST is not numeric, set to 3600 (seconds)"
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fi
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if ! [[ $AUTOPAUSE_TIMEOUT_INIT =~ ^[0-9]+$ ]] ; then
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AUTOPAUSE_TIMEOUT_INIT=600
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export AUTOPAUSE_TIMEOUT_INIT
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log "Warning: AUTOPAUSE_TIMEOUT_INIT is not numeric, set to 600 (seconds)"
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fi
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if [[ "$AUTOPAUSE_KNOCK_INTERFACE" == "lo" ]] ; then
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log "Warning: AUTOPAUSE_KNOCK_INTERFACE is set to the local loopback interface."
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log " This is not advisable, as incoming connections are likely not picked up there."
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log " Continuing with this setting."
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fi
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if [[ -n "$MAX_TICK_TIME" && "$MAX_TICK_TIME" != "-1" ]] ; then
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log "Warning: MAX_TICK_TIME is non-default, for autopause to work properly, this check should be disabled (-1 for versions >= 1.8.1)"
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elif [[ -z "$MAX_TICK_TIME" ]] ; then
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if versionLessThan 1.8.1; then
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# 10 years
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MAX_TICK_TIME=315360000000
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else
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MAX_TICK_TIME=-1
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fi
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export MAX_TICK_TIME
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fi
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# seq_cooldown cannot be larger than AUTOPAUSE_TIMEOUT_KN, otherwise the server may
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# become paused while knockd is still ignoring packets, preventing players from joining.
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let COOLDOWN=$AUTOPAUSE_TIMEOUT_KN/2
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sed -i "s/\(seq_cooldown *= *\).*/\1$COOLDOWN/" /tmp/knockd-config.cfg
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/auto/autopause-daemon.sh &
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