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# 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::Auth::Login::CGI;
use 5.10.1;
use strict;
use warnings;
use base qw(Bugzilla::Auth::Login);
use constant user_can_create_account => 1;
use Bugzilla::Constants;
use Bugzilla::WebService::Constants;
use Bugzilla::Util;
use Bugzilla::Error;
use Bugzilla::Token;
sub get_login_info {
my ($self) = @_;
my $params = Bugzilla->input_params;
my $cgi = Bugzilla->cgi;
my $login = trim(delete $params->{'Bugzilla_login'});
my $password = delete $params->{'Bugzilla_password'};
# The token must match the cookie to authenticate the request.
my $login_token = delete $params->{'Bugzilla_login_token'};
my $login_cookie = $cgi->cookie('Bugzilla_login_request_cookie');
my $valid = 0;
# If the web browser accepts cookies, use them.
if ($login_token && $login_cookie) {
my ($time, undef) = split(/-/, $login_token);
# Regenerate the token based on the information we have.
my $expected_token = issue_hash_token(['login_request', $login_cookie], $time);
$valid = 1 if $expected_token eq $login_token;
$cgi->remove_cookie('Bugzilla_login_request_cookie');
}
# WebServices and other local scripts can bypass this check.
# This is safe because we won't store a login cookie in this case.
elsif (Bugzilla->usage_mode != USAGE_MODE_BROWSER) {
$valid = 1;
}
# Else falls back to the Referer header and accept local URLs.
# Attachments are served from a separate host (ideally), and so
# an evil attachment cannot abuse this check with a redirect.
elsif (my $referer = $cgi->referer) {
my $urlbase = Bugzilla->localconfig->{urlbase};
$valid = 1 if $referer =~ /^\Q$urlbase\E/;
}
# If the web browser doesn't accept cookies and the Referer header
# is missing, we have no way to make sure that the authentication
# request comes from the user.
elsif ($login && $password) {
ThrowUserError('auth_untrusted_request', { login => $login });
}
if (!defined($login) || !defined($password) || !$valid) {
return { failure => AUTH_NODATA };
}
return { username => $login, password => $password };
}
sub fail_nodata {
my ($self) = @_;
my $cgi = Bugzilla->cgi;
my $template = Bugzilla->template;
if (Bugzilla->usage_mode != USAGE_MODE_BROWSER) {
ThrowUserError('login_required');
}
print $cgi->header();
$template->process("account/auth/login.html.tmpl",
{ 'target' => $cgi->url(-relative=>1) })
|| ThrowTemplateError($template->error());
exit;
}
1;
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