From bae5bf2fe7517df4f8a3736ab4c1c4c8783fc404 Mon Sep 17 00:00:00 2001
From: phl0 <florian@florian-wolters.de>
Date: Wed, 18 Jan 2017 12:00:09 +0100
Subject: [PATCH] Add cron stuff for updating DMRIDs

---
 README.md            |  4 ++++
 cron/updateDMRIDs    |  4 ++++
 cron/updateDMRIDs.sh | 29 +++++++++++++++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 cron/updateDMRIDs
 create mode 100755 cron/updateDMRIDs.sh

diff --git a/README.md b/README.md
index 436472c..8cac383 100644
--- a/README.md
+++ b/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 file updateDMRIDs to /etc/cron.d/ and updateDMRIDs.sh to /var/www. 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
diff --git a/cron/updateDMRIDs b/cron/updateDMRIDs
new file mode 100644
index 0000000..aeda16a
--- /dev/null
+++ b/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
+
diff --git a/cron/updateDMRIDs.sh b/cron/updateDMRIDs.sh
new file mode 100755
index 0000000..067126c
--- /dev/null
+++ b/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)