76 lines
1.8 KiB
Bash
Executable File
76 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Mail via GMX-Relay versenden (Podman-Image "smtp-relay")
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#
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# Klappt nur direkt im Container, daher ggf. via ssh aufrufen (Annahme: remote user == local user)
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#
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# $1 = recipient
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# $2 = Mail-Betreff (ggf. in "")
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# $3 || STDIN = Mail-Body
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#
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# Verwendung:
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# > echo "sinnloser Text - äöüÄÖÜß -"| mail.sh hb242@pm.me "noch'n test"
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# > mail.sh hb242@pm.me "log whatever" ../log/some.log
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#
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PODMAN=/usr/bin/podman
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#
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# -i ist entscheident, damit die restliche Kommandozeile sauber ausgewertet wird
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# das ersetzt den expliziten Aufruf mit "sh -c "..." "
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SUDO="sudo -u container -i"
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MAILCONTAINER=smtp-relay
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MAILSERVER_IP=10.4.2.30
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REMOTE=""
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which ip >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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# Linux
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myip=$(ip -o route get to 8.8.8.8 | sed -n 's/.*src \([0-9.]\+\).*/\1/p')
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else
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# macOS
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myip=$(ipconfig getifaddr en0) # FIXME: nicht sauber wg. explizitem IF!
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fi
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if [ "$myip" != "$MAILSERVER_IP" ]; then
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REMOTE=yes
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fi
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TO=$1
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SUBJECT=$2
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shift 2
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if [ -z "$TO" ] || [ -z "$SUBJECT" ]; then
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echo "ERROR: missing parameter "
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echo
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echo "Usage: $0 recipient subject [file || STDIN]"
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echo
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exit
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fi
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PODMANCMD="$SUDO $PODMAN"
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if [ ! -z "$REMOTE" ]; then
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PODMANCMD="ssh $MAILSERVER_IP $PODMANCMD"
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fi
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# der Mail-Container sollte laufen, falls nicht, dann ist wahrscheinlich der Backup
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# noch nicht durch => 30 Minuten warten
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$PODMANCMD ps | grep $MAILCONTAINER >/dev/null
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if [ $? -ne 0 ]; then
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sleep 30m
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fi
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# Mail body aus Datei oder STDIN holen
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CONTENT=$(cat ${1:--})
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MAILCMD="$PODMANCMD exec -i $MAILCONTAINER /usr/sbin/sendmail -i -t"
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# construct mail header + content and pipe to sendmail
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cat <<EOMB | $MAILCMD
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FROM: hb42@gmx.de
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TO: ${TO}
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DATE: $(date -R)
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MIME-Version: 1.0
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Content-Type: text/plain; charset=utf-8
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SUBJECT: $SUBJECT
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$CONTENT
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EOMB
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