94 lines
3.1 KiB
Bash
Executable File
94 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# .---. . .
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# | | |
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# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
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# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
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# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
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#
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# Freedom in the Cloud
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#
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# GPG Encrypt a Maildir using gpgit.pl
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#
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# License
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# =======
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#
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# Copyright (C) 2014-2016 Bob Mottram <bob@robotics.uk.to>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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USERNAME=$1
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ADMIN_USER=$(cat $COMPLETION_FILE | grep "Admin user" | awk -F ':' '{print $2}')
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if [ ! $USERNAME ]; then
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USERNAME=$ADMIN_USER
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fi
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MAIL_DIR=/home/$USERNAME/Maildir
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EMAIL_ADDRESS=$USERNAME@$HOSTNAME
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# Does this key exist?
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gpg --list-keys "$EMAIL_ADDRESS" > /dev/null 2>&1
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if [ $? -gt 0 ]; then
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echo $"A GPG key for $EMAIL_ADDRESS could not be found!"
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exit 0
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fi
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# Find all files in the Maildir specified.
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echo $"Calling find"
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find "$MAIL_DIR" -type f -regex '.*/\(cur\|new\)/.*' $4|while read line; do
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gpgit.pl --encrypt-mode prefer-inline "$EMAIL_ADDRESS" "/tmp/msg_$USERNAME"
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# Check to see if there are differences between the existing
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# Maildir file and what was created by gpgit.pl
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diff -qa "$line" "/tmp/msg_$USERNAME" > /dev/null 2>&1;
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if [ $? -gt 0 ]; then
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# Preserve timestamps, set ownership.
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chown $USERNAME:$USERNAME "/tmp/msg_$USERNAME"
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chmod 600 "/tmp/msg_$USERNAME"
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touch "/tmp/msg_$USERNAME" --reference="$line"
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# Unlink the original Maildir message
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unlink "$line"
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# Strip message sizes, retain experimental flags
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# and status flags, and copy the file over.
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STRIPSIZES=$(/bin/echo "$line"|/bin/sed -e "s/W=[[:digit:]]*//" -e "s/S=[[:digit:]]*//" -e "s/,,//" -e "s/,:2/:2/")
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cp -av "/tmp/msg_$USERNAME" "$STRIPSIZES"
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#Indexes must be rebuilt, weve modified Maildir.
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touch "/tmp/rebuild_index_$USERNAME"
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else
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echo $"Not copying, no differences between /tmp/msg_$USERNAME and $line"
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fi
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# Remove the temporary file
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unlink "/tmp/msg_$USERNAME"
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done
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# Remove Dovecot index and uids for regeneration.
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if [ -f "/tmp/rebuild_index_$USERNAME" ]; then
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echo $"Removing Dovecot indexes and uids"
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find "$MAIL_DIR" -type f -regex '.*\(dovecot-\|dovecot\.\|\.uidvalidity\).*' -delete
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# Remove the temporary file
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unlink "/tmp/rebuild_index_$USERNAME"
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else
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echo -n $"No messages found needing GPG encryption, not"
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echo $"removing Dovecot indexes and UIDs."
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fi
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exit 0
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