summaryrefslogtreecommitdiffstats
path: root/relogin.cgi
blob: 8c4517f0c2d409ab89f26443f676778a1fb8dd07 (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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
#!/usr/bin/perl -wT
# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Bug Tracking System.
#
# The Initial Developer of the Original Code is Netscape Communications
# Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s): Terry Weissman <terry@mozilla.org>
#                 Gervase Markham <gerv@gerv.net>
#                 A. Karl Kornel <karl@kornel.name>

use strict;
use lib qw(.);

require "globals.pl";

use Bugzilla;
use Bugzilla::BugMail;
use Bugzilla::Constants;
use Bugzilla::Error;
use Bugzilla::User;
use Bugzilla::Util;
use Date::Format;

my $template = Bugzilla->template;
my $cgi = Bugzilla->cgi;

my $action = $cgi->param('action') || 'logout';

my $vars = {};
my $target;

# sudo: Display the sudo information & login page
if ($action eq 'sudo') {
    # We must have a logged-in user to do this
    # That user must be in the 'bz_sudoers' group
    my $user = Bugzilla->login(LOGIN_REQUIRED);
    unless ($user->in_group('bz_sudoers')) {
        ThrowUserError('auth_failure', {  group => 'bz_sudoers',
                                         action => 'begin',
                                         object => 'sudo_session' }
        );
    }
    
    # Do not try to start a new session if one is already in progress!
    if (defined(Bugzilla->sudoer)) {
        ThrowUserError('sudo_in_progress', { target => $user->login });
    }

    # We may have been given a value to put into the field
    # Don't pass it through unless it's actually a user
    # Could the default value be protected?  Maybe, but we will save the
    # disappointment for later!
    if (defined($cgi->param('target_login')) &&
        Bugzilla::User::login_to_id($cgi->param('target_login')) != 0)
    {
        $vars->{'target_login_default'} = $cgi->param('target_login');
    }

    # Show the sudo page
    $vars->{'will_logout'} = $user->get_flag('can_logout');
    $target = 'admin/sudo.html.tmpl';
}
# transition-sudo: Validate target, logout user, and redirect for session start
elsif ($action eq 'sudo-transition') {
    # Get the current user
    my $user = Bugzilla->login(LOGIN_REQUIRED);
    unless ($user->in_group('bz_sudoers')) {
        ThrowUserError('auth_failure', {  group => 'bz_sudoers',
                                         action => 'begin',
                                         object => 'sudo_session' }
        );
    }
    
    # Get & verify the target user (the user who we will be impersonating)
    unless (defined($cgi->param('target_login')) &&
            Bugzilla::User::login_to_id($cgi->param('target_login')) != 0)
    {
        ThrowUserError('invalid_username', 
                       { 'name' => $cgi->param('target_login') }
        );
    }
    my $target_user = new Bugzilla::User(
        Bugzilla::User::login_to_id($cgi->param('target_login'))
    );
    unless (defined($target_user) &&
            $target_user->id != 0)
    {
        ThrowUserError('invalid_username', 
                       { 'name' => $cgi->param('target_login') }
        );
    }
    unless (defined($cgi->param('target_login')) &&
            $target_user->id != 0)
    {
        ThrowUserError('invalid_username', 
                       { 'name' => $cgi->param('target_login') }
        );
    }
    if ($target_user->in_group('bz_sudo_protect')) {
        ThrowUserError('sudo_protected', { login => $target_user->login });
    }
    
    # If we have a reason passed in, keep it under 200 characters
    my $reason = $cgi->param('reason') || '';
    $reason = substr($reason, $[, 200);
    my $reason_string = '&reason=' . url_quote($reason);
    
    # Log out and redirect user to the new page
    Bugzilla->logout();
    $target = 'relogin.cgi';
    print $cgi->redirect($target . '?action=begin-sudo&target_login=' .
                         url_quote($target_user->login) . $reason_string);
    exit;
}
# begin-sudo: Confirm login and start sudo session
elsif ($action eq 'begin-sudo') {
    # We must have a logged-in user to do this
    # That user must be in the 'bz_sudoers' group
    my $user = Bugzilla->login(LOGIN_REQUIRED);
    unless ($user->in_group('bz_sudoers')) {
        ThrowUserError('auth_failure', {  group => 'bz_sudoers',
                                         action => 'begin',
                                         object => 'sudo_session' }
        );
    }
    
    # Get & verify the target user (the user who we will be impersonating)
    unless (defined($cgi->param('target_login')) &&
            Bugzilla::User::login_to_id($cgi->param('target_login')) != 0)
    {
        ThrowUserError('invalid_username', 
                       { 'name' => $cgi->param('target_login') }
        );
    }
    my $target_user = new Bugzilla::User(
        Bugzilla::User::login_to_id($cgi->param('target_login'))
    );
    unless (defined($target_user) &&
            $target_user->id != 0)
    {
        ThrowUserError('invalid_username', 
                       { 'name' => $cgi->param('target_login') }
        );
    }
    unless (defined($cgi->param('target_login')) &&
            $target_user->id != 0)
    {
        ThrowUserError('invalid_username', 
                       { 'name' => $cgi->param('target_login') }
        );
    }
    if ($target_user->in_group('bz_sudo_protect')) {
        ThrowUserError('sudo_protected', { login => $target_user->login });
    }
    
    # If we have a reason passed in, keep it under 200 characters
    my $reason = $cgi->param('reason') || '';
    $reason = substr($reason, $[, 200);
    
    # Calculate the session expiry time (T + 6 hours)
    my $time_string = time2str('%a, %d-%b-%Y %T %Z', time+(6*60*60), 'GMT');

    # For future sessions, store the unique ID of the target user
    Bugzilla->cgi->send_cookie('-name'    => 'sudo',
                               '-expires' => $time_string,
                               '-value'   => $target_user->id
    );
    
    # For the present, change the values of Bugzilla::user & Bugzilla::sudoer
    Bugzilla->sudo_request($target_user, Bugzilla->user);
    
    # NOTE: If you want to log the start of an sudo session, do it here.

    # Go ahead and send out the message now
    my $message;
    $template->process('email/sudo.txt.tmpl', 
                       { reason => $reason },
                       \$message);
    Bugzilla::BugMail::MessageToMTA($message);
        
    $vars->{'message'} = 'sudo_started';
    $vars->{'target'} = $target_user->login;
    $target = 'global/message.html.tmpl';
}
# end-sudo: End the current sudo session (if one is in progress)
elsif ($action eq 'end-sudo') {
    # Regardless of our state, delete the sudo cookie if it exists
    $cgi->remove_cookie('sudo');

    # Are we in an sudo session?
    Bugzilla->login(LOGIN_OPTIONAL);
    my $sudoer = Bugzilla->sudoer;
    if (defined($sudoer)) {
        Bugzilla->logout_request();
        Bugzilla->sudo_request($sudoer, undef);
    }

    # NOTE: If you want to log the end of an sudo session, so it here.
    
    $vars->{'message'} = 'sudo_ended';
    $target = 'global/message.html.tmpl';
}
# Log out the currently logged-in user (this used to be the only thing this did)
elsif ($action eq 'logout') {
    # We don't want to remove a random logincookie from the db, so
    # call Bugzilla->login(). If we're logged in after this, then
    # the logincookie must be correct
    Bugzilla->login(LOGIN_OPTIONAL);

    $cgi->remove_cookie('sudo');

    Bugzilla->logout();

    my $template = Bugzilla->template;
    my $cgi = Bugzilla->cgi;
    print $cgi->header();

    $vars->{'message'} = "logged_out";
    $target = 'global/message.html.tmpl';
}

# Display the template
print $cgi->header();
$template->process($target, $vars)
      || ThrowTemplateError($template->error());