forked from freifunk-franken/firmware
72 lines
1.7 KiB
Bash
Executable File
72 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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# Netmon Nodewatcher (C) 2010-2012 Freifunk Oldenburg
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# License; GPL v3
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test -f /tmp/started || exit
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# Allow only one instance
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lockfile="/var/lock/${0##*/}.lock"
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if ! lock -n "$lockfile"; then
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echo "Only one instance of $0 allowed."
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exit 1
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fi
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trap "lock -u \"$lockfile\"" INT TERM EXIT
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[ -s /etc/config/nodewatcher ] || exit 1
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SCRIPT_ERROR_LEVEL=$(uci get nodewatcher.@script[0].error_level)
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SCRIPT_LOGFILE=$(uci get nodewatcher.@script[0].logfile)
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SCRIPT_DATA_FILE=$(uci get nodewatcher.@script[0].data_file)
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if [ "$SCRIPT_ERROR_LEVEL" -gt "1" ]; then
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debug() {
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echo "$1" >> "$SCRIPT_LOGFILE"
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}
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else
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debug() {
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:
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}
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fi
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#This method checks if the log file has become too big and deletes the first X lines
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delete_log() {
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if [ -f "$SCRIPT_LOGFILE" ]; then
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if [ "$(find "$SCRIPT_LOGFILE" -printf "%s")" -gt "6000" ]; then
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sed -i '1,60d' "$SCRIPT_LOGFILE"
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debug "$(date): Logfile has been made smaller"
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fi
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fi
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}
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#This method generates the crawl data XML file that is being fetched by netmon
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#and provided by a small local httpd
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crawl() {
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debug "$(date): Putting all information into a XML-File and save it at $SCRIPT_DATA_FILE"
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DATA="<?xml version='1.0' standalone='yes'?><data>"
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for f in /usr/lib/nodewatcher.d/*.sh; do
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tmp="$($f)"
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DATA="$DATA$tmp"
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done
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DATA="$DATA</data>"
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#write data to xml file that provides the data on httpd
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SCRIPT_DATA_DIR=$(dirname "$SCRIPT_DATA_FILE")
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test -d "$SCRIPT_DATA_DIR" || mkdir -p "$SCRIPT_DATA_DIR"
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echo "$DATA" | gzip | tee "$SCRIPT_DATA_FILE" | alfred -s 64
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}
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LANG=C
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#Prüft ob das logfile zu groß geworden ist
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debug "$(date): Check logfile"
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delete_log
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#Erzeugt die statusdaten
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debug "$(date): Generate actual status data"
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crawl
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exit 0
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