зеркало из https://github.com/mozilla/pjs.git
558 строки
15 KiB
Perl
558 строки
15 KiB
Perl
#!/usr/bin/perl -w
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# -*- Mode: perl; indent-tabs-mode: nil -*-
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#
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# The contents of this file are subject to the Mozilla Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# The Original Code is the Bugzilla Inbound Email System.
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#
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# The Initial Developer of the Original Code is Akamai Technologies, Inc.
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# Portions created by Akamai are Copyright (C) 2006 Akamai Technologies,
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# Inc. All Rights Reserved.
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#
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# Contributor(s): Max Kanat-Alexander <mkanat@bugzilla.org>
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use strict;
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use warnings;
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# MTAs may call this script from any directory, but it should always
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# run from this one so that it can find its modules.
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BEGIN {
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require File::Basename;
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chdir(File::Basename::dirname($0));
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}
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use lib qw(. lib);
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use Data::Dumper;
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use Email::Address;
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use Email::Reply qw(reply);
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use Email::MIME;
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use Email::MIME::Attachment::Stripper;
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use Getopt::Long qw(:config bundling);
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use Pod::Usage;
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use Encode;
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use Bugzilla;
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use Bugzilla::Bug qw(ValidateBugID);
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use Bugzilla::Constants qw(USAGE_MODE_EMAIL);
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use Bugzilla::Error;
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use Bugzilla::Mailer;
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use Bugzilla::User;
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use Bugzilla::Util;
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#############
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# Constants #
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#############
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# This is the USENET standard line for beginning a signature block
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# in a message. RFC-compliant mailers use this.
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use constant SIGNATURE_DELIMITER => '-- ';
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# These fields must all be defined or post_bug complains. They don't have
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# to have values--they just have to be defined. There's not yet any
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# way to require custom fields have values, for enter_bug, so we don't
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# have to worry about those yet.
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use constant REQUIRED_ENTRY_FIELDS => qw(
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reporter
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short_desc
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product
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component
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version
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assigned_to
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rep_platform
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op_sys
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priority
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bug_severity
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bug_file_loc
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);
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# Fields that must be defined during process_bug. They *do* have to
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# have values. The script will grab their values from the current
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# bug object, if they're not specified.
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use constant REQUIRED_PROCESS_FIELDS => qw(
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dependson
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blocked
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version
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product
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target_milestone
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rep_platform
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op_sys
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priority
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bug_severity
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bug_file_loc
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component
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short_desc
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reporter_accessible
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cclist_accessible
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);
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# $input_email is a global so that it can be used in die_handler.
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our ($input_email, %switch);
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####################
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# Main Subroutines #
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####################
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sub parse_mail {
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my ($mail_text) = @_;
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debug_print('Parsing Email');
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$input_email = Email::MIME->new($mail_text);
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my %fields;
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# Email::Address->parse returns an array
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my ($reporter) = Email::Address->parse($input_email->header('From'));
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$fields{'reporter'} = $reporter->address;
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my $summary = $input_email->header('Subject');
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if ($summary =~ /\[Bug (\d+)\](.*)/i) {
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$fields{'bug_id'} = $1;
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$summary = trim($2);
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}
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my ($body, $attachments) = get_body_and_attachments($input_email);
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if (@$attachments) {
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$fields{'attachments'} = $attachments;
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}
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debug_print("Body:\n" . $body, 3);
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$body = remove_leading_blank_lines($body);
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my @body_lines = split("\n", $body);
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# If there are fields specified.
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if ($body =~ /^\s*@/s) {
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my $current_field;
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while (my $line = shift @body_lines) {
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# If the sig is starting, we want to keep this in the
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# @body_lines so that we don't keep the sig as part of the
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# comment down below.
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if ($line eq SIGNATURE_DELIMITER) {
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unshift(@body_lines, $line);
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last;
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}
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# Otherwise, we stop parsing fields on the first blank line.
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$line = trim($line);
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last if !$line;
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if ($line =~ /^@(\S+)\s*=\s*(.*)\s*/) {
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$current_field = lc($1);
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$fields{$current_field} = $2;
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}
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else {
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$fields{$current_field} .= " $line";
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}
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}
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}
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# The summary line only affects us if we're doing a post_bug.
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# We have to check it down here because there might have been
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# a bug_id specified in the body of the email.
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if (!$fields{'bug_id'} && !$fields{'short_desc'}) {
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$fields{'short_desc'} = $summary;
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}
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my $comment = '';
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# Get the description, except the signature.
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foreach my $line (@body_lines) {
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last if $line eq SIGNATURE_DELIMITER;
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$comment .= "$line\n";
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}
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$fields{'comment'} = $comment;
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debug_print("Parsed Fields:\n" . Dumper(\%fields), 2);
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return \%fields;
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}
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sub post_bug {
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my ($fields_in) = @_;
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my %fields = %$fields_in;
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debug_print('Posting a new bug...');
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$fields{'rep_platform'} ||= Bugzilla->params->{'defaultplatform'};
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$fields{'op_sys'} ||= Bugzilla->params->{'defaultopsys'};
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$fields{'priority'} ||= Bugzilla->params->{'defaultpriority'};
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$fields{'bug_severity'} ||= Bugzilla->params->{'defaultseverity'};
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foreach my $field (REQUIRED_ENTRY_FIELDS) {
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$fields{$field} ||= '';
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}
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my $cgi = Bugzilla->cgi;
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foreach my $field (keys %fields) {
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$cgi->param(-name => $field, -value => $fields{$field});
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}
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$cgi->param(-name => 'inbound_email', -value => 1);
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require 'post_bug.cgi';
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}
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sub process_bug {
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my ($fields_in) = @_;
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my %fields = %$fields_in;
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my $bug_id = $fields{'bug_id'};
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$fields{'id'} = $bug_id;
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delete $fields{'bug_id'};
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debug_print("Updating Bug $fields{id}...");
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ValidateBugID($bug_id);
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my $bug = new Bugzilla::Bug($bug_id);
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if ($fields{'assigned_to'}) {
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$fields{'knob'} = 'reassign';
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}
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if (my $status = $fields{'bug_status'}) {
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$fields{'knob'} = 'confirm' if $status =~ /NEW/i;
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$fields{'knob'} = 'accept' if $status =~ /ASSIGNED/i;
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$fields{'knob'} = 'clearresolution' if $status =~ /REOPENED/i;
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$fields{'knob'} = 'verify' if $status =~ /VERIFIED/i;
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$fields{'knob'} = 'close' if $status =~ /CLOSED/i;
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}
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if ($fields{'dup_id'}) {
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$fields{'knob'} = 'duplicate';
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}
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if ($fields{'resolution'}) {
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$fields{'knob'} = 'resolve';
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}
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# Make sure we don't get prompted if we have to change the default
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# groups.
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if ($fields{'product'}) {
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$fields{'addtonewgroup'} = 0;
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}
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foreach my $field (REQUIRED_PROCESS_FIELDS) {
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my $value = $bug->$field;
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if (ref $value) {
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$value = join(',', @$value);
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}
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$fields{$field} ||= $value;
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}
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# Make it possible to remove CCs.
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if ($fields{'removecc'}) {
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$fields{'cc'} = [split(',', $fields{'removecc'})];
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$fields{'removecc'} = 1;
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}
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my $cgi = Bugzilla->cgi;
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foreach my $field (keys %fields) {
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$cgi->param(-name => $field, -value => $fields{$field});
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}
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$cgi->param('longdesclength', scalar $bug->longdescs);
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require 'process_bug.cgi';
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}
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######################
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# Helper Subroutines #
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######################
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sub debug_print {
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my ($str, $level) = @_;
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$level ||= 1;
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print STDERR "$str\n" if $level <= $switch{'verbose'};
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}
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sub get_body_and_attachments {
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my ($email) = @_;
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my $ct = $email->content_type || 'text/plain';
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debug_print("Splitting Body and Attachments [Type: $ct]...");
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my $body;
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my $attachments = [];
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if ($ct =~ /^multipart\/alternative/i) {
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$body = get_text_alternative($email);
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}
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else {
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my $stripper = new Email::MIME::Attachment::Stripper(
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$email, force_filename => 1);
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my $message = $stripper->message;
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$body = get_text_alternative($message);
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$attachments = [$stripper->attachments];
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}
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return ($body, $attachments);
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}
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sub get_text_alternative {
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my ($email) = @_;
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my @parts = $email->parts;
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my $body;
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foreach my $part (@parts) {
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my $ct = $part->content_type || 'text/plain';
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my $charset = 'iso-8859-1';
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if ($ct =~ /charset=([^;]+)/) {
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$charset= $1;
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}
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debug_print("Part Content-Type: $ct", 2);
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debug_print("Part Character Encoding: $charset", 2);
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if (!$ct || $ct =~ /^text\/plain/i) {
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$body = $part->body;
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if (Bugzilla->params->{'utf8'} && !utf8::is_utf8($body)) {
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$body = Encode::decode($charset, $body);
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}
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last;
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}
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}
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if (!defined $body) {
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# Note that this only happens if the email does not contain any
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# text/plain parts. If the email has an empty text/plain part,
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# you're fine, and this message does NOT get thrown.
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ThrowUserError('email_no_text_plain');
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}
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return $body;
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}
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sub remove_leading_blank_lines {
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my ($text) = @_;
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$text =~ s/^(\s*\n)+//s;
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return $text;
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}
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sub html_strip {
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my ($var) = @_;
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# Trivial HTML tag remover (this is just for error messages, really.)
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$var =~ s/<[^>]*>//g;
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# And this basically reverses the Template-Toolkit html filter.
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$var =~ s/\&/\&/g;
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$var =~ s/\</</g;
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$var =~ s/\>/>/g;
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$var =~ s/\"/\"/g;
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$var =~ s/@/@/g;
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return $var;
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}
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sub die_handler {
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my ($msg) = @_;
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# In Template-Toolkit, [% RETURN %] is implemented as a call to "die".
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# But of course, we really don't want to actually *die* just because
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# the user-error or code-error template ended. So we don't really die.
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return if $msg->isa('Template::Exception') && $msg->type eq 'return';
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# If this is inside an eval, then we should just act like...we're
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# in an eval (instead of printing the error and exiting).
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die(@_) if $^S;
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# We can't depend on the MTA to send an error message, so we have
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# to generate one properly.
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if ($input_email) {
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$msg =~ s/at .+ line.*$//ms;
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$msg =~ s/^Compilation failed in require.+$//ms;
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$msg = html_strip($msg);
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my $reply = reply(to => $input_email, top_post => 1, body => "$msg\n");
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MessageToMTA($reply->as_string);
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}
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print STDERR $msg;
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# We exit with a successful value, because we don't want the MTA
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# to *also* send a failure notice.
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exit;
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}
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###############
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# Main Script #
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###############
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$SIG{__DIE__} = \&die_handler;
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GetOptions(\%switch, 'help|h', 'verbose|v+');
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$switch{'verbose'} ||= 0;
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# Print the help message if that switch was selected.
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pod2usage({-verbose => 0, -exitval => 1}) if $switch{'help'};
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Bugzilla->usage_mode(USAGE_MODE_EMAIL);
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my @mail_lines = <STDIN>;
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my $mail_text = join("", @mail_lines);
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my $mail_fields = parse_mail($mail_text);
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my $username = $mail_fields->{'reporter'};
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my $user = Bugzilla::User->new({ name => $username })
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|| ThrowUserError('invalid_username', { name => $username });
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Bugzilla->set_user($user);
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if ($mail_fields->{'bug_id'}) {
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process_bug($mail_fields);
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}
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else {
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post_bug($mail_fields);
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}
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__END__
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=head1 NAME
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email_in.pl - The Bugzilla Inbound Email Interface
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=head1 SYNOPSIS
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./email_in.pl [-vvv] < email.txt
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Reads an email on STDIN (the standard input).
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Options:
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--verbose (-v) - Make the script print more to STDERR.
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Specify multiple times to print even more.
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=head1 DESCRIPTION
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This script processes inbound email and creates a bug, or appends data
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to an existing bug.
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=head2 Creating a New Bug
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The script expects to read an email with the following format:
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From: account@domain.com
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Subject: Bug Summary
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@product = ProductName
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@component = ComponentName
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@version = 1.0
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This is a bug description. It will be entered into the bug exactly as
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written here.
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It can be multiple paragraphs.
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--
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This is a signature line, and will be removed automatically, It will not
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be included in the bug description.
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The C<@> labels can be any valid field name in Bugzilla that can be
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set on C<enter_bug.cgi>. For the list of required field names, see
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L<Bugzilla::WebService::Bug/Create>. Note, that there is some difference
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in the names of the required input fields between web and email interfaces,
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as listed below:
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=over
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=item *
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C<platform> in web is C<@rep_platform> in email
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=item *
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C<severity> in web is C<@bug_severity> in email
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=back
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For the list of all field names, see the C<fielddefs> table in the database.
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The values for the fields can be split across multiple lines, but
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note that a newline will be parsed as a single space, for the value.
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So, for example:
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@short_desc = This is a very long
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description
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Will be parsed as "This is a very long description".
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If you specify C<@short_desc>, it will override the summary you specify
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in the Subject header.
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C<account@domain.com> must be a valid Bugzilla account.
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Note that signatures must start with '-- ', the standard signature
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border.
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=head2 Modifying an Existing Bug
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Bugzilla determines what bug you want to modify in one of two ways:
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=over
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=item *
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Your subject starts with [Bug 123456] -- then it modifies bug 123456.
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=item *
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You include C<@bug_id = 123456> in the first lines of the email.
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=back
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If you do both, C<@bug_id> takes precedence.
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You send your email in the same format as for creating a bug, except
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that you only specify the fields you want to change. If the very
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first non-blank line of the email doesn't begin with C<@>, then it
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will be assumed that you are only adding a comment to the bug.
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Note that when updating a bug, the C<Subject> header is ignored,
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except for getting the bug ID. If you want to change the bug's summary,
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you have to specify C<@short_desc> as one of the fields to change.
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Please remember not to include any extra text in your emails, as that
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text will also be added as a comment. This includes any text that your
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email client automatically quoted and included, if this is a reply to
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another email.
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=head3 Adding/Removing CCs
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You can't just add CCs to a bug by using the C<@cc> parameter like you
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can when you're filing a bug. To add CCs, you can specify them in a
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comma-separated list in C<@newcc>.
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To remove CCs, specify them as a comma-separated list in C<@removecc>.
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=head2 Errors
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If your request cannot be completed for any reason, Bugzilla will
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send an email back to you. If your request succeeds, Bugzilla will
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not send you anything.
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If any part of your request fails, all of it will fail. No partial
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changes will happen.
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There is no attachment support yet.
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=head1 CAUTION
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The script does not do any validation that the user is who they say
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they are. That is, it accepts I<any> 'From' address, as long as it's
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a valid Bugzilla account. So make sure that your MTA validates that
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the message is actually coming from who it says it's coming from,
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and only allow access to the inbound email system from people you trust.
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=head1 LIMITATIONS
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Note that the email interface has the same limitations as the
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normal Bugzilla interface. So, for example, you cannot reassign
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a bug and change its status at the same time.
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The email interface only accepts emails that are correctly formatted
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perl RFC2822. If you send it an incorrectly formatted message, it
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may behave in an unpredictable fashion.
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You cannot send an HTML mail along with attachments. If you do, Bugzilla
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will reject your email, saying that it doesn't contain any text. This
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is a bug in L<Email::MIME::Attachment::Stripper> that we can't work
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around.
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You cannot modify Flags through the email interface.
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