#!/usr/bin/perl -T
# 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.

use 5.10.1;
use strict;
use warnings;

use lib qw(. lib local/lib/perl5);

use Bugzilla;
use Bugzilla::Attachment;
use Bugzilla::BugMail;
use Bugzilla::Constants;
use Bugzilla::Util;
use Bugzilla::Error;
use Bugzilla::Bug;
use Bugzilla::User;
use Bugzilla::Field;
use Bugzilla::Hook;
use Bugzilla::Product;
use Bugzilla::Component;
use Bugzilla::Keyword;
use Bugzilla::Token;
use Bugzilla::Flag;

use List::MoreUtils qw(uniq);

my $user = Bugzilla->login(LOGIN_REQUIRED);

my $cgi = Bugzilla->cgi;
my $dbh = Bugzilla->dbh;
my $template = Bugzilla->template;
my $vars = {};

######################################################################
# Main Script
######################################################################

# redirect to enter_bug if no field is passed.
unless ($cgi->param()) {
    print $cgi->redirect(correct_urlbase() . 'enter_bug.cgi');
    exit;
}

# BMO: Don't allow updating of bugs if disabled
if (Bugzilla->params->{disable_bug_updates}) {
    ThrowErrorPage('bug/process/updates-disabled.html.tmpl',
        'Bug updates are currently disabled.');
}

# Detect if the user already used the same form to submit a bug
my $token = trim($cgi->param('token'));
check_token_data($token, 'create_bug', 'index.cgi');

# do a match on the fields if applicable
# BMO: allow extensions to define custom user fields
my $user_match_fields = {
    'cc'            => { 'type' => 'multi'  },
    'assigned_to'   => { 'type' => 'single' },
    'qa_contact'    => { 'type' => 'single' },
};
Bugzilla::Hook::process('bug_user_match_fields', { fields => $user_match_fields });
Bugzilla::User::match_field($user_match_fields);

if (defined $cgi->param('maketemplate')) {
    $vars->{'url'} = $cgi->canonicalise_query('token');
    $vars->{'short_desc'} = $cgi->param('short_desc');
    
    print $cgi->header();
    $template->process("bug/create/make-template.html.tmpl", $vars)
      || ThrowTemplateError($template->error());
    exit;
}

umask 0;

# The format of the initial comment can be structured by adding fields to the
# enter_bug template and then referencing them in the comment template.
my $comment;
my $format = $template->get_format("bug/create/comment",
                                   scalar($cgi->param('format')), "txt");
$template->process($format->{'template'}, $vars, \$comment)
    || ThrowTemplateError($template->error());

# Include custom fields editable on bug creation.
my @custom_bug_fields = grep {$_->type != FIELD_TYPE_MULTI_SELECT && $_->enter_bug}
                             Bugzilla->active_custom_fields;

# Undefined custom fields are ignored to ensure they will get their default
# value (e.g. "---" for custom single select fields).
my @bug_fields = grep { defined $cgi->param($_->name) } @custom_bug_fields;
@bug_fields = map { $_->name } @bug_fields;

push(@bug_fields, qw(
    product
    component

    assigned_to
    qa_contact

    alias
    blocked
    comment_is_private
    bug_file_loc
    bug_severity
    bug_status
    dependson
    keywords
    short_desc
    op_sys
    priority
    rep_platform
    version
    target_milestone
    status_whiteboard
    see_also
    estimated_time
    deadline
));
my %bug_params;
foreach my $field (@bug_fields) {
    $bug_params{$field} = $cgi->param($field);
}
foreach my $field (qw(cc groups)) {
    next if !$cgi->should_set($field);
    $bug_params{$field} = [$cgi->param($field)];
}
$bug_params{'comment'} = $comment;

my @multi_selects = grep {$_->type == FIELD_TYPE_MULTI_SELECT && $_->enter_bug}
                         Bugzilla->active_custom_fields;

foreach my $field (@multi_selects) {
    next if !$cgi->should_set($field->name);
    $bug_params{$field->name} = [$cgi->param($field->name)];
}

# BMO - add user_match_fields.  it's important to source from input_params
# instead of $cgi->param to ensure we get the correct value.
foreach my $field (keys %$user_match_fields) {
    next if exists $bug_params{$field};
    next unless $cgi->should_set($field);
    $bug_params{$field} = Bugzilla->input_params->{$field} // [];
}

my $bug = Bugzilla::Bug->create(\%bug_params);

# Get the bug ID back and delete the token used to create this bug.
my $id = $bug->bug_id;
delete_token($token);

# We do this directly from the DB because $bug->creation_ts has the seconds
# formatted out of it (which should be fixed some day).
my $timestamp = $dbh->selectrow_array(
    'SELECT creation_ts FROM bugs WHERE bug_id = ?', undef, $id);

# Set Version cookie, but only if the user actually selected
# a version on the page.
if (defined $cgi->param('version')) {
    $cgi->send_cookie(-name => "VERSION-" . $bug->product,
                      -value => $bug->version,
                      -expires => "Fri, 01-Jan-2038 00:00:00 GMT");
}

# We don't have to check if the user can see the bug, because a user filing
# a bug can always see it. You can't change reporter_accessible until
# after the bug is filed.

# Add an attachment if requested.
my $data_fh = $cgi->upload('data');
my $attach_text = $cgi->param('attach_text');

if ($data_fh || $attach_text) {
    $cgi->param('isprivate', $cgi->param('comment_is_private'));

    # Must be called before create() as it may alter $cgi->param('ispatch').
    my $content_type = Bugzilla::Attachment::get_content_type();
    my $attachment;

    # If the attachment cannot be successfully added to the bug,
    # we notify the user, but we don't interrupt the bug creation process.
    my $error_mode_cache = Bugzilla->error_mode;
    Bugzilla->error_mode(ERROR_MODE_DIE);
    eval {
        $attachment = Bugzilla::Attachment->create(
            {bug           => $bug,
             creation_ts   => $timestamp,
             data          => $attach_text || $data_fh,
             description   => scalar $cgi->param('description'),
             filename      => $attach_text ? "file_$id.txt" : $data_fh,
             ispatch       => scalar $cgi->param('ispatch'),
             isprivate     => scalar $cgi->param('isprivate'),
             mimetype      => $content_type,
            });
    };
    Bugzilla->error_mode($error_mode_cache);

    if ($attachment) {
        # Set attachment flags.
        Bugzilla::Hook::process('post_bug_attachment_flags', { bug => $bug, attachment => $attachment });
        my ($flags, $new_flags) = Bugzilla::Flag->extract_flags_from_cgi(
                                      $bug, $attachment, $vars, SKIP_REQUESTEE_ON_ERROR);
        $attachment->set_flags($flags, $new_flags);
        $attachment->update($timestamp);
        my $comment = $bug->comments->[0];
        $comment->set_all({ type => CMT_ATTACHMENT_CREATED, 
                            extra_data => $attachment->id });
        $comment->update();
    }
    else {
        $vars->{'message'} = 'attachment_creation_failed';
    }
}

# Set bug_ignored from the hidden field
if (scalar $cgi->param('bug_ignored')) {
    $bug->set_bug_ignored(1);
}

# Set bug flags.
my ($flags, $new_flags) = Bugzilla::Flag->extract_flags_from_cgi($bug, undef, $vars,
                                                             SKIP_REQUESTEE_ON_ERROR);
$bug->set_flags($flags, $new_flags);
$bug->update($timestamp);

$vars->{'id'} = $id;
$vars->{'bug'} = $bug;

Bugzilla::Hook::process('post_bug_after_creation', { vars => $vars });

ThrowCodeError("bug_error", { bug => $bug }) if $bug->error;

my $recipients = { changer => $user };
my $bug_sent = Bugzilla::BugMail::Send($id, $recipients);
$bug_sent->{type} = 'created';
$bug_sent->{id}   = $id;
my @all_mail_results = ($bug_sent);

foreach my $dep (@{$bug->dependson || []}, @{$bug->blocked || []}) {
    my $dep_sent = Bugzilla::BugMail::Send($dep, $recipients);
    $dep_sent->{type} = 'dep';
    $dep_sent->{id}   = $dep;
    push(@all_mail_results, $dep_sent);
}

# Sending emails for any referenced bugs.
foreach my $ref_bug_id (uniq @{ $bug->{see_also_changes} || [] }) {
    my $ref_sent = Bugzilla::BugMail::Send($ref_bug_id, $recipients);
    $ref_sent->{id} = $ref_bug_id;
    push(@all_mail_results, $ref_sent);
}

$vars->{sentmail} = \@all_mail_results;

$format = $template->get_format("bug/create/created",
                                 scalar($cgi->param('created-format')),
                                 "html");

# don't leak the enter_bug format param to show_bug
$cgi->delete('format');

print $cgi->header();
$template->process($format->{'template'}, $vars)
    || ThrowTemplateError($template->error());

1;