aboutsummaryrefslogtreecommitdiff
blob: 10a456dd6ea3acab94ea1fc867c172b573b1136d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.

package Bugzilla::Mailer;

use strict;

use base qw(Exporter);
@Bugzilla::Mailer::EXPORT = qw(MessageToMTA build_thread_marker);

use Bugzilla::Constants;
use Bugzilla::Error;
use Bugzilla::Hook;
use Bugzilla::Util;

use Date::Format qw(time2str);

use Encode qw(encode);
use Encode::MIME::Header;
use Email::Address;
use Email::MIME;
use Email::Send;

sub MessageToMTA {
    my ($msg, $send_now) = (@_);
    my $method = Bugzilla->params->{'mail_delivery_method'};
    return if $method eq 'None';

    if (Bugzilla->params->{'use_mailer_queue'} and !$send_now) {
        Bugzilla->job_queue->insert('send_mail', { msg => $msg });
        return;
    }

    my $email;
    if (ref $msg) {
        $email = $msg;
    }
    else {
        # RFC 2822 requires us to have CRLF for our line endings and
        # Email::MIME doesn't do this for us. We use \015 (CR) and \012 (LF)
        # directly because Perl translates "\n" depending on what platform
        # you're running on. See http://perldoc.perl.org/perlport.html#Newlines
        # We check for multiple CRs because of this Template-Toolkit bug:
        # https://rt.cpan.org/Ticket/Display.html?id=43345
        $msg =~ s/(?:\015+)?\012/\015\012/msg;
        $email = new Email::MIME($msg);
    }

    # We add this header to uniquely identify all email that we
    # send as coming from this Bugzilla installation.
    #
    # We don't use correct_urlbase, because we want this URL to
    # *always* be the same for this Bugzilla, in every email,
    # even if the admin changes the "ssl_redirect" parameter some day.
    $email->header_set('X-Bugzilla-URL', Bugzilla->params->{'urlbase'});
    
    # We add this header to mark the mail as "auto-generated" and
    # thus to hopefully avoid auto replies.
    $email->header_set('Auto-Submitted', 'auto-generated');

    # MIME-Version must be set otherwise some mailsystems ignore the charset
    $email->header_set('MIME-Version', '1.0') if !$email->header('MIME-Version');

    # Encode the headers correctly in quoted-printable
    foreach my $header ($email->header_names) {
        my @values = $email->header($header);
        # We don't recode headers that happen multiple times.
        next if scalar(@values) > 1;
        if (my $value = $values[0]) {
            if (Bugzilla->params->{'utf8'} && !utf8::is_utf8($value)) {
                utf8::decode($value);
            }

            # avoid excessive line wrapping done by Encode.
            local $Encode::Encoding{'MIME-Q'}->{'bpl'} = 998;

            my $encoded = encode('MIME-Q', $value);
            $email->header_set($header, $encoded);
        }
    }

    my $from = $email->header('From');

    my ($hostname, @args);
    if ($method eq "Sendmail") {
        if (ON_WINDOWS) {
            $Email::Send::Sendmail::SENDMAIL = SENDMAIL_EXE;
        }
        push @args, "-i";
        # We want to make sure that we pass *only* an email address.
        if ($from) {
            my ($email_obj) = Email::Address->parse($from);
            if ($email_obj) {
                my $from_email = $email_obj->address;
                push(@args, "-f$from_email") if $from_email;
            }
        }
    }
    else {
        # Sendmail will automatically append our hostname to the From
        # address, but other mailers won't.
        my $urlbase = Bugzilla->params->{'urlbase'};
        $urlbase =~ m|//([^:/]+)[:/]?|;
        $hostname = $1;
        $from .= "\@$hostname" if $from !~ /@/;
        $email->header_set('From', $from);
        
        # Sendmail adds a Date: header also, but others may not.
        if (!defined $email->header('Date')) {
            $email->header_set('Date', time2str("%a, %d %b %Y %T %z", time()));
        }
    }

    if ($method eq "SMTP") {
        push @args, Host  => Bugzilla->params->{"smtpserver"},
                    username => Bugzilla->params->{"smtp_username"},
                    password => Bugzilla->params->{"smtp_password"},
                    Hello => $hostname, 
                    ssl => Bugzilla->params->{'smtp_ssl'},
                    Debug => Bugzilla->params->{'smtp_debug'};
    }

    Bugzilla::Hook::process('mailer_before_send', 
                            { email => $email, mailer_args => \@args });

    $email->walk_parts(sub {
        my ($part) = @_;
        return if $part->parts > 1; # Top-level
        my $content_type = $part->content_type || '';
        if ($content_type !~ /;/) {
            my $body = $part->body;
            if (Bugzilla->params->{'utf8'}) {
                $part->charset_set('UTF-8');
                # encoding_set works only with bytes, not with utf8 strings.
                my $raw = $part->body_raw;
                if (utf8::is_utf8($raw)) {
                    utf8::encode($raw);
                    $part->body_set($raw);
                }
            }
            $part->encoding_set('quoted-printable') if !is_7bit_clean($body);
        }
    });

    if ($method eq "Test") {
        my $filename = bz_locations()->{'datadir'} . '/mailer.testfile';
        open TESTFILE, '>>', $filename;
        # From - <date> is required to be a valid mbox file.
        print TESTFILE "\n\nFrom - " . $email->header('Date') . "\n" . $email->as_string;
        close TESTFILE;
    }
    else {
        # This is useful for both Sendmail and Qmail, so we put it out here.
        local $ENV{PATH} = SENDMAIL_PATH;
        my $mailer = Email::Send->new({ mailer => $method, 
                                        mailer_args => \@args });
        my $retval = $mailer->send($email);
        ThrowCodeError('mail_send_error', { msg => $retval, mail => $email })
            if !$retval;
    }
}

# Builds header suitable for use as a threading marker in email notifications
sub build_thread_marker {
    my ($bug_id, $user_id, $is_new) = @_;

    if (!defined $user_id) {
        $user_id = Bugzilla->user->id;
    }

    my $sitespec = '@' . Bugzilla->params->{'urlbase'};
    $sitespec =~ s/:\/\//\./; # Make the protocol look like part of the domain
    $sitespec =~ s/^([^:\/]+):(\d+)/$1/; # Remove a port number, to relocate
    if ($2) {
        $sitespec = "-$2$sitespec"; # Put the port number back in, before the '@'
    }

    my $threadingmarker;
    if ($is_new) {
        $threadingmarker = "Message-ID: <bug-$bug_id-$user_id$sitespec>";
    }
    else {
        my $rand_bits = generate_random_password(10);
        $threadingmarker = "Message-ID: <bug-$bug_id-$user_id-$rand_bits$sitespec>" .
                           "\nIn-Reply-To: <bug-$bug_id-$user_id$sitespec>" .
                           "\nReferences: <bug-$bug_id-$user_id$sitespec>";
    }

    return $threadingmarker;
}

1;