From c794e32492362bdb6c5e01da12725e51053259c8 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Sat, 25 Apr 2020 12:14:11 +0200
Subject: Added procmail example

---
 TODO                                |  2 +-
 plugins/weblog/procmail/procmail.sh | 94 +++++++++++++++++++++++++++++++++++++
 plugins/weblog/procmail/procmailrc  | 12 +++++
 3 files changed, 107 insertions(+), 1 deletion(-)
 create mode 100755 plugins/weblog/procmail/procmail.sh
 create mode 100644 plugins/weblog/procmail/procmailrc

diff --git a/TODO b/TODO
index 083cb2c..b8a8bce 100644
--- a/TODO
+++ b/TODO
@@ -1,4 +1,4 @@
-weblog: mail procmail
+weblog: blättern
 weblog: link consistency check (cron?)
 weblog: style: zitate
 Integrate into Debian
diff --git a/plugins/weblog/procmail/procmail.sh b/plugins/weblog/procmail/procmail.sh
new file mode 100755
index 0000000..bafe889
--- /dev/null
+++ b/plugins/weblog/procmail/procmail.sh
@@ -0,0 +1,94 @@
+#!/bin/bash
+#
+# Mail Blog input script, to be called by procmail
+#
+set -e
+
+function atexit {
+	if [ "$ERRORMSG" != "" -o -s errormsg.txt ] ; then
+		(echo "$ERRORMSG" ; cat errormsg.txt) | mutt -s "bloginput: Error" -- "$ADDR" >> ~/log 2>&1
+	fi
+	cd
+	rm -rf "$DIR"
+}
+trap atexit EXIT
+
+function mimedecode() {
+ perl -ne 'require MIME::Head; $head = MIME::Head->read(\*STDIN); $head->decode(); print $head->get("Subject")'
+}
+
+echo "Log at `date`:" >> ~/log 2>&1
+
+BLOGDIR=/var/www/blog
+
+# Default: Error
+ERRORMSG="General error."
+USERLOG=""
+
+DIR=`mktemp -d`
+
+cd "$DIR"
+
+touch body.txt
+touch errormsg.txt
+
+cat > inmail
+
+ADDR=`grep "^From: " inmail | sed -e 's/^From: //'`
+if echo "$ADDR" | grep -q -v "^[a-zA-Z0-9@._-<>\" ]\+$" ; then
+	# can't send error message to unknown requester
+	ERRORMSG=""
+	exit 1
+fi
+if echo "$ADDR" | grep -q "weblog-bloginput" ; then
+	# don't reply to mails from weblog-bloginput, i.e. prevent mail loops
+	ERRORMSG=""
+	exit 1
+fi
+
+#if grep -q "^pitch " inmail ; then
+#	PITCH=`grep "^pitch " inmail|head -n1|sed -e 's/^pitch \([+-]\?[0-9]\+\(\.[0-9]\+\)\?\).*/\1/'`
+#	if echo "$PITCH" | grep -q "^pitch " ; then
+#		# no pitch match
+#		ERRORMSG="Bad pitch syntax."
+#		exit 1
+#	fi
+#	USERLOG="pitch $PITCH"
+#else
+#	PITCH=0
+#fi
+
+ALLLINES=`wc -l inmail | cut -f1 -d" "`
+
+HEADERLINES=`cat inmail | (n=0; while read i ; do
+ if [ "$i" == "" ] ; then
+  echo $n
+  break
+ fi
+ n=$(($n + 1))
+done)`
+
+HEADER=`head -n$HEADERLINES inmail`
+BODY=`tail -n$(($ALLLINES - $HEADERLINES - 1)) inmail`
+
+echo "$HEADER" > /home/weblog-bloginput/header.txt
+echo "$BODY" > /home/weblog-bloginput/body.txt
+
+SUBJECT=`echo "$HEADER" | mimedecode`
+SUBJECT_PATH=`echo "$SUBJECT" | sed -e 's/[^a-zA-Z0-9]/_/g'`
+
+ARTICLEDIR="$BLOGDIR/`date +%Y/%Y%m%d_%H%M`_$SUBJECT_PATH"
+
+mkdir -p $ARTICLEDIR
+echo "Subject: $SUBJECT" >> $ARTICLEDIR/article.data
+echo "" >> $ARTICLEDIR/article.data
+echo "$BODY" >> $ARTICLEDIR/article.data
+
+echo "Processed successfully." | mutt -s "Bloginput: $SUBJECT_PATH" -- "$ADDR" >> ~/log 2>&1
+
+echo "User log:" >> ~/log
+cat body.txt >> ~/log
+
+ERRORMSG=""
+echo "Done successfully at `date`." >> ~/log 2>&1
+
diff --git a/plugins/weblog/procmail/procmailrc b/plugins/weblog/procmail/procmailrc
new file mode 100644
index 0000000..fa1fe6f
--- /dev/null
+++ b/plugins/weblog/procmail/procmailrc
@@ -0,0 +1,12 @@
+:0:
+* ^X-Virus-Infected
+Virus
+# TODO: can be /dev/null later
+
+:0:
+* ^X-Spam-Flag: YES
+Spam
+# TODO: can be /dev/null later
+
+:0 fhbw
+| /home/weblog-bloginput/procmail.sh
-- 
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