50 lines
1.3 KiB
Bash
Executable file
50 lines
1.3 KiB
Bash
Executable file
#!/usr/bin/env bash
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temp_dir="$(mktemp --tmpdir -d "imap-download-XXXXXXX")";
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on_exit() {
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rm -rf "${temp_dir}";
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}
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trap on_exit EXIT;
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do_fetchmail() {
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fetchmail --mda "/usr/bin/procmail -m /srv/procmail.conf";
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}
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log_msg() {
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echo "$(date -u +"%Y-%m-%d %H:%M:%S") imap-download: $*";
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}
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dir_newmail="/tmp/maildir/Mail/new";
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target_dir="/mnt/output";
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do_attachments() {
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while :; do # : = infinite loop
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# Wait for an update
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# inotifywait's non-0 exit code forces an exit for some reason :-/
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inotifywait -qr --event create --format '%:e %f' "${dir_newmail}";
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while read -r filename; do
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log_msg "Processing email ${filename}";
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# Move the email to a temporary directory for processing
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mv "${filename}" "${temp_dir}";
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# Unpack the attachments
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munpack -C "${temp_dir}" "${filename}";
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# Delete the original email file and any description files
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rm "${filename}";
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find "${temp_dir}" -iname '*.desc' -delete;
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# Move the attachment files to the output directory
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while read -r attachment; do
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log_msg "Extracted attachment ${attachment}";
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chmod 0775 "${temp_dir}/${attachment}";
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mv "${attachment}" "${target_dir}";
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done < <(find "${temp_dir}" -type f);
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done < <(find "${dir_newmail}" -type f);
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done
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}
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do_fetchmail &
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do_attachments
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