Merge pull request #84 from phl0/cron

Add cron scripts for automatic update of DMRIDs.dat

README.md

@@ -52,6 +52,10 @@ New features by EA4GKQ
 * LastHeard table are sorted 
 * Some mods to improve mobile experience
 
+Cronjob for updating DMR IDs
+============================
+You can use the included script to update the DMR IDs periodically. Copy the files updateDMRIDs to /etc/cron.d/ and updateDMRIDs.sh to /var/www from the cron folder in this repo. The paths may have to be aligned to your system architecture. The Update script will then be executed once every 24 hours at 3:30. For security considerations please make sure that the cron folder is not copied to your web server's www root directory.
+
 Contact
 =======
 Feel free to contact the author via email: dg9vh[@]darc.de

cron/updateDMRIDs

@@ -0,0 +1,4 @@
+# Move this file to /etc/cron.d
+# Updates the DMRIds.dat every 24 hours
+* * * * * www-data [ -x /var/www/updateDMRIDs.sh  ] && /var/www/updateDMRIDs.sh
+

cron/updateDMRIDs.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# Full path to DMR ID file
+DMRIDFILE=/var/www/html/DMRIds.dat
+
+# How many DMR ID files do you want backed up (0 = do not keep backups)
+DMRFILEBACKUP=1
+
+# Create backup of old file
+if [ ${DMRFILEBACKUP} -ne 0 ]
+then
+        cp ${DMRIDFILE} ${DMRIDFILE}.$(date +%d%m%y)
+fi
+
+# Prune backups
+BACKUPCOUNT=$(ls ${DMRIDFILE}.* | wc -l)
+BACKUPSTODELETE=$(expr ${BACKUPCOUNT} - ${DMRFILEBACKUP})
+
+if [ ${BACKUPCOUNT} -gt ${DMRFILEBACKUP} ]
+then
+        for f in $(ls -tr ${DMRIDFILE}.* | head -${BACKUPSTODELETE})
+        do
+                rm $f
+        done
+fi
+
+curl 'http://www.dmr-marc.net/cgi-bin/trbo-database/datadump.cgi?table=users&format=csv&header=0' 2>/dev/null | sed -e 's/\t//g' | awk -F"," '/,/{gsub(/ /, "", $2); printf "%s\t%s\t%s\n", $1, $2, $3}' | sed -e 's/\(.\) .*/\1/g' > /tmp/DMRIds.dat.$(date +%d%m%y)
+mv /tmp/DMRIds.dat.$(date +%d%m%y) ${DMRIDFILE}
+rm -f /tmp/DMRIds.dat.$(date +%d%m%y)