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Tools: add sendmail

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can be used to send multipart (HTML, plain) mails to one or more
recipients at once.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2016-04-04 16:23:08 +02:00 committed by Dietmar Maurer
parent 26598a513b
commit b61a47dbeb
1 changed files with 63 additions and 0 deletions
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63
src/PVE/Tools.pm
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@ -1214,6 +1214,69 @@ sub sync_mountpoint {
return $result;
}
# support sending multi-part mail messages with a text and or a HTML part
# mailto may be a single email string or an array of receivers
sub sendmail {
my ($mailto, $subject, $text, $html, $mailfrom, $author) = @_;
$mailto = [ $mailto ] if ref($mailto) ne 'ARRAY';
my $rcvrarg = '';
foreach my $r (@$mailto) {
$rcvrarg .= " '$r'";
}
my $rcvrtxt = join (', ', @$mailto);
$mailfrom = $mailfrom || "root";
$author = $author || 'Proxmox VE mail notifier';
open (MAIL,"|sendmail -B 8BITMIME -f $mailfrom $rcvrarg") ||
die "unable to open 'sendmail' - $!";
# multipart spec see https://www.ietf.org/rfc/rfc1521.txt
my $boundary = "----_=_NextPart_001_".int(time).$$;
print MAIL "Content-Type: multipart/alternative;\n";
print MAIL "\tboundary=\"$boundary\"\n";
print MAIL "MIME-Version: 1.0\n";
print MAIL "FROM: $author <$mailfrom>\n";
print MAIL "TO: $rcvrtxt\n";
print MAIL "SUBJECT: $subject\n";
print MAIL "\n";
print MAIL "This is a multi-part message in MIME format.\n\n";
print MAIL "--$boundary\n";
if ($text) {
print MAIL "Content-Type: text/plain;\n";
print MAIL "\tcharset=\"UTF8\"\n";
print MAIL "Content-Transfer-Encoding: 8bit\n";
print MAIL "\n";
# avoid 'remove extra line breaks' issue (MS Outlook)
my $fill = ' ';
$text =~ s/^/$fill/gm;
print MAIL $text;
print MAIL "\n--$boundary\n";
}
if($html) {
print MAIL "Content-Type: text/html;\n";
print MAIL "\tcharset=\"UTF8\"\n";
print MAIL "Content-Transfer-Encoding: 8bit\n";
print MAIL "\n";
print MAIL $html;
print MAIL "\n--$boundary--\n";
}
close(MAIL);
}
sub tempfile {
my ($perm, %opts) = @_;