summaryrefslogtreecommitdiff
path: root/actions/finishremotesubscribe.php
blob: 44abbfceb793c31d9a74119cce11987643246948 (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
<?php
/**
 * Handler for remote subscription finish callback
 *
 * PHP version 5
 *
 * @category Action
 * @package  StatusNet
 * @author   Evan Prodromou <evan@status.net>
 * @author   Robin Millette <millette@status.net>
 * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
 * @link     http://status.net/
 *
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2008, 2009, StatusNet, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 **/

if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }

require_once INSTALLDIR.'/extlib/libomb/service_consumer.php';
require_once INSTALLDIR.'/lib/omb.php';

/**
 * Handler for remote subscription finish callback
 *
 * When a remote user subscribes a local user, a redirect to this action is
 * issued after the remote user authorized his service to subscribe.
 *
 * @category Action
 * @package  Laconica
 * @author   Evan Prodromou <evan@controlyourself.ca>
 * @author   Robin Millette <millette@controlyourself.ca>
 * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
 * @link     http://laconi.ca/
 */
class FinishremotesubscribeAction extends Action
{

    /**
     * Class handler.
     *
     * @param array $args query arguments
     *
     * @return nothing
     *
     **/
    function handle($args)
    {
        parent::handle($args);

        /* Restore session data. RemotesubscribeAction should have stored
           this entry. */
        $service  = unserialize($_SESSION['oauth_authorization_request']);

        if (!$service) {
            $this->clientError(_('Not expecting this response!'));
            return;
        }

        common_debug('stored request: '. print_r($service, true), __FILE__);

        /* Create user objects for both users. Do it early for request
           validation. */
        $user = User::staticGet('uri', $service->getListeneeURI());

        if (!$user) {
            $this->clientError(_('User being listened to does not exist.'));
            return;
        }

        $other = User::staticGet('uri', $service->getListenerURI());

        if ($other) {
            $this->clientError(_('You can use the local subscription!'));
            return;
        }

        $remote = Remote_profile::staticGet('uri', $service->getListenerURI());

        $profile = Profile::staticGet($remote->id);

        if ($user->hasBlocked($profile)) {
            $this->clientError(_('That user has blocked you from subscribing.'));
            return;
        }

        /* Perform the handling itself via libomb. */
        try {
            $service->finishAuthorization();
        } catch (OAuthException $e) {
            if ($e->getMessage() == 'The authorized token does not equal the ' .
                                    'submitted token.') {
                $this->clientError(_('You are not authorized.'));
                return;
            } else {
                $this->clientError(_('Could not convert request token to ' .
                                     'access token.'));
                return;
            }
        } catch (OMB_RemoteServiceException $e) {
            $this->clientError(_('Remote service uses unknown version of ' .
                                 'OMB protocol.'));
            return;
        } catch (Exception $e) {
            common_debug('Got exception ' . print_r($e, true), __FILE__);
            $this->clientError($e->getMessage());
            return;
        }

        /* The service URLs are not accessible from datastore, so setting them
           after insertion of the profile. */
        $orig_remote = clone($remote);

        $remote->postnoticeurl    =
                            $service->getServiceURI(OMB_ENDPOINT_POSTNOTICE);
        $remote->updateprofileurl =
                            $service->getServiceURI(OMB_ENDPOINT_UPDATEPROFILE);

        if (!$remote->update($orig_remote)) {
                $this->serverError(_('Error updating remote profile'));
                return;
        }

        /* Clear the session data. */
        unset($_SESSION['oauth_authorization_request']);

        /* If we show subscriptions in reverse chronological order, the new one
           should show up close to the top of the page. */
        common_redirect(common_local_url('subscribers', array('nickname' =>
                                                             $user->nickname)),
                        303);
    }

    function add_avatar($profile, $url)
    {
        $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
        copy($url, $temp_filename);
        $imagefile = new ImageFile($profile->id, $temp_filename);
        $filename = Avatar::filename($profile->id,
                                     image_type_to_extension($imagefile->type),
                                     null,
                                     common_timestamp());
        rename($temp_filename, Avatar::path($filename));
        return $profile->setOriginal($filename);
    }

    function access_token($omb)
    {

        common_debug('starting request for access token', __FILE__);

        $con = omb_oauth_consumer();
        $tok = new OAuthToken($omb['token'], $omb['secret']);

        common_debug('using request token "'.$tok.'"', __FILE__);

        $url = $omb['access_token_url'];

        common_debug('using access token url "'.$url.'"', __FILE__);

        # XXX: Is this the right thing to do? Strip off GET params and make them
        # POST params? Seems wrong to me.

        $parsed = parse_url($url);
        $params = array();
        parse_str($parsed['query'], $params);

        $req = OAuthRequest::from_consumer_and_token($con, $tok, "POST", $url, $params);

        $req->set_parameter('omb_version', OMB_VERSION_01);

        # XXX: test to see if endpoint accepts this signature method

        $req->sign_request(omb_hmac_sha1(), $con, $tok);

        # We re-use this tool's fetcher, since it's pretty good

        common_debug('posting to access token url "'.$req->get_normalized_http_url().'"', __FILE__);
        common_debug('posting request data "'.$req->to_postdata().'"', __FILE__);

        $fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
        $result = $fetcher->post($req->get_normalized_http_url(),
                                 $req->to_postdata(),
                                 array('User-Agent: StatusNet/' . STATUSNET_VERSION));

        common_debug('got result: "'.print_r($result,true).'"', __FILE__);

        if ($result->status != 200) {
            return null;
        }

        parse_str($result->body, $return);

        return array($return['oauth_token'], $return['oauth_token_secret']);
    }
}