source: scripts/usr/local/lib/7dtd/common.sh@ 17

#!/bin/bash
# Version 4

# Provides common functions for 7dtd-scripts. Not intended to be run directly.

# Check if the script is run as root (exit otherwise) and load global config
checkRootLoadConf() {
        if [ `id -u` -ne 0 ]; then
                echo "This script has to be run as root!"
                exit 10
        fi
        . /etc/7dtd.conf
}

# Get the config path for the given instance
# Params:
#   1: Instance name
# Returns:
#   Config path for instance
getInstancePath() {
        echo $SDTD_BASE/instances/$1
}

# Check if the given instance name is an existing instance
# Params:
#   1: Instance name
# Returns:
#   0/1 instance not valid/valid
isValidInstance() {
        if [ -z $1 ]; then
                echo 0
        else
                if [ ! -d $(getInstancePath $1) ]; then
                        echo 0
                else
                        if [ ! -f $(getInstancePath $1)/config.xml ]; then
                                echo 0
                        else
                                echo 1
                        fi
                fi
        fi
}

# Check if the given instance is currently running
# Params:
#   1: Instance name
# Returns:
#   0 = not running
#   1 = running
isRunning() {
        start-stop-daemon --status --pidfile $(getInstancePath $1)/7dtd.pid
        if [ $? -eq 0 ]; then
                echo 1
        else
                echo 0
        fi
}

# Get list of defined instances
# Returns:
#   List of instances
getInstanceList() {
        for IF in $SDTD_BASE/instances/*; do
                I=`basename $IF`
                if [ $(isValidInstance $I) -eq 1 ]; then
                        echo $I
                fi
        done
}

# Get the PID of the instance if it is running, 0 otherwise
# Params:
#   1: Instance name
# Returns:
#   0 if not running
#   PID otherwise
getInstancePID() {
        if [ $(isRunning $1) -eq 1 ]; then
                cat $(getInstancePath $1)/7dtd.pid
        else
                echo 0
        fi
}

# Get a single value from a serverconfig
# Params:
#   1: Instance name
#   2: Property name
# Returns:
#   Property value
getConfigValue() {
        CONF=$(getInstancePath $1)/config.xml
        $XMLSTARLET sel -t -v "/ServerSettings/property[@name='$2']/@value" $CONF
}

# Update a single value in a serverconfig
# Params:
#   1: Instance name
#   2: Property name
#   3: New value
setConfigValue() {
        CONF=$(getInstancePath $1)/config.xml
        $XMLSTARLET ed -L -u "/ServerSettings/property[@name='$2']/@value" -v "$3" $CONF
}

# Check if a given port range (baseport, baseport+1, baseport+2 each udp)
# is already in use by any instance
# Params:
#   1: Baseport
# Returns:
#   0/1 not in use/in use
checkGamePortUsed() {
        PORTMIN=$1
        PORTMAX=$(( $1 + 2 ))
        for I in $(getInstanceList); do
                CURPORTMIN=$(getConfigValue $I "ServerPort")
                CURPORTMAX=$(( $CURPORTMIN + 2 ))
                if [ $PORTMAX -ge $CURPORTMIN -a $PORTMIN -le $CURPORTMAX ]; then
                        echo 1
                        return
                fi
        done
        echo 0
}

# Check if a given telnet port is already in use by any instance
# Params:
#   1: Port
# Returns:
#   0/1 not in use/in use
checkTelnetPortUsed() {
        for I in $(getInstanceList); do
                CURENABLED=$(getConfigValue $I "TelnetEnabled")
                CURPORT=$(getConfigValue $I "TelnetPort")
                if [ "$CURENABLED" = "true" -a $CURPORT -eq $1 ]; then
                        echo 1
                        return
                fi
        done
        echo 0
}

# Send a single command to the telnet port
# Params:
#   1: Instance name
#   2: Command
# Returns:
#   String of telnet output
telnetCommand() {
        TEL_ENABLED=$(getConfigValue $1 TelnetEnabled)
        TEL_PORT=$(getConfigValue $1 TelnetPort)
        TEL_PASS=$(getConfigValue $1 TelnetPassword)    
        if [ "$TEL_ENABLED" = "true" ] && [ -n "$TEL_PASS" ]; then
                echo -e "$TEL_PASS\n$2\nexit" | nc -q 2 127.0.0.1 $TEL_PORT
        else
                echo "Telnet not enabled or no password set."
        fi
}

# Get all hook files for the given hook-name
# Params:
#   1: Hook name
# Returns:
#   Names of hook files
getHooksFor() {
        if [ -d $SDTD_BASE/hooks/$1 ]; then
                for H in $SDTD_BASE/hooks/$1/*.sh; do
                        echo "$H"
                done
        fi
}

# Lowercase passed string
# Params:
#   1: String
# Returns:
#   Lowercased string
lowercase() {
        echo "${1}" | tr "[:upper:]" "[:lower:]"
}

# Prepare passed string as part of camelcase, i.e. first char upper case, others
# lowercase
# Params:
#   1: String
# Returns:
#   Transformed string
camelcasePrep() {
        echo $(echo "${1:0:1}" | tr "[:lower:]" "[:upper:]")$(echo "${1:1}" | tr "[:upper:]" "[:lower:]")
}

listCommands() {
        for C in $(declare -F | cut -d\  -f3 | grep "^sdtdCommand"\
                        | grep -v "Help$"\
                        | grep -v "Description$"\
                        | grep -v "Expects$"); do
                CMD=$(lowercase "${C#sdtdCommand}")
                printf "%s " "$CMD"
        done
}

. /usr/local/lib/7dtd/help.sh
. /usr/local/lib/7dtd/playerlog.sh
for M in /usr/local/lib/7dtd/commands/*.sh; do
        . $M
done