X-Git-Url: https://git.madduck.net/etc/neomutt.git/blobdiff_plain/a6ac44586209b9b0be5add1bef270451f3dcb677..4d1afcd5cc3e282554877a10d6be81931ef0cc03:/.config/neomutt/sendmail

diff --git a/.config/neomutt/sendmail b/.config/neomutt/sendmail
new file mode 100755
index 0000000..cd0b8dd
--- /dev/null
+++ b/.config/neomutt/sendmail
@@ -0,0 +1,49 @@
+#!/bin/sh
+#
+# neomutt/sendmail – sendmail wrapper to enforce some checks on outgoing mails
+#
+# The script basically just creates a temporary file and then invokes any
+# executable scripts in ~/.config/neomutt/sendmail-checks.d in run-parts style.
+# They receive the filename of a temporary file holding the message to be sent
+# as $1, followed by all recipients as determined by mutt.
+#
+# Copyright © 2010 martin f. krafft <madduck@madduck.net> Released under the
+# terms of the Artistic Licence 2.0
+#
+set -eux
+
+CHECKSDIR="$HOME/.config/neomutt/sendmail-checks.d"
+SENDMAIL="/usr/sbin/sendmail -oem -oi"
+
+TMPFILE=$(mktemp --tmpdir mutt-sendmail.XXXXXXXXXX.msg)
+settrap () { trap "$@" 0 1 2 3 4 5 6 7 8 10 11 12 13 14 15; }
+cleanup () { rm -f "$TMPFILE"; settrap -; }
+settrap cleanup
+
+argtype=s
+recipients= sendmail_args=
+for i in "$@"; do
+  case "$argtype/$i" in
+    (s/--) argtype=r;;
+    (s/*) sendmail_args="${sendmail_args} $i";;
+    (r/*) recipients="${recipients} $i";;
+  esac
+done
+
+cat > $TMPFILE
+
+remove_headers=
+if ! formail -czx "Resent-" < "$TMPFILE" | grep -q .; then
+  # only do this for original mails, not bounces
+  recipients="$recipients $(formail -czx "X-Bcc" < "$TMPFILE" | tr -d ',')"
+  remove_headers="$remove_headers -IX-Bcc"
+fi
+args=$(for i in $recipients; do echo "--arg=$i"; done)
+run-parts --exit-on-error --umask=0077 --arg="$TMPFILE" $args -- "$CHECKSDIR"
+
+recipients=$(echo "$recipients" | xargs)
+
+formail $remove_headers < "$TMPFILE" \
+  | eval $SENDMAIL "$sendmail_args" -- "$recipients"
+
+cleanup