summaryrefslogtreecommitdiff
path: root/lib/feedimporter.php
blob: e46858cc51824510d4610f9392cfbab5a1eb2f57 (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
<?php
/**
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2010, StatusNet, Inc.
 *
 * Importer for feeds of activities
 * 
 * PHP version 5
 *
 * 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/>.
 *
 * @category  Account
 * @package   StatusNet
 * @author    Evan Prodromou <evan@status.net>
 * @copyright 2010 StatusNet, Inc.
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
 * @link      http://status.net/
 */

if (!defined('STATUSNET')) {
    // This check helps protect against security problems;
    // your code file can't be executed directly from the web.
    exit(1);
}

/**
 * Importer for feeds of activities
 *
 * Takes an XML file representing a feed of activities and imports each
 * activity to the user in question.
 *
 * @category  Account
 * @package   StatusNet
 * @author    Evan Prodromou <evan@status.net>
 * @copyright 2010 StatusNet, Inc.
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
 * @link      http://status.net/
 */

class FeedImporter extends QueueHandler
{
    /**
     * Transport identifier
     *
     * @return string identifier for this queue handler
     */

    public function transport()
    {
        return 'feedimp';
    }

    function handle($data)
    {
        list($user, $xml, $trusted) = $data;

        try {
            $doc = DOMDocument::loadXML($xml);

            $feed = $doc->documentElement;

            if ($feed->namespaceURI != Activity::ATOM ||
                $feed->localName != 'feed') {
                throw new ClientException(_("Not an atom feed."));
            }


            $author = ActivityUtils::getFeedAuthor($feed);

            if (empty($author)) {
                throw new ClientException(_("No author in the feed."));
            }

            if (empty($user)) {
                if ($trusted) {
                    $user = $this->userFromAuthor($author);
                } else {
                    throw new ClientException(_("Can't import without a user."));
                }
            }

            $activities = $this->getActivities($feed);

            $qm = QueueManager::get();

            foreach ($activities as $activity) {
                $qm->enqueue(array($user, $author, $activity, $trusted), 'actimp');
            }
        } catch (ClientException $ce) {
            common_log(LOG_WARNING, $ce->getMessage());
            return true;
        } catch (ServerException $se) {
            common_log(LOG_ERR, $ce->getMessage());
            return false;
        } catch (Exception $e) {
            common_log(LOG_ERR, $ce->getMessage());
            return false;
        }
    }

    function getActivities($feed)
    {
        $entries = $feed->getElementsByTagNameNS(Activity::ATOM, 'entry');

        $activities = array();

        for ($i = 0; $i < $entries->length; $i++) {
            $activities[] = new Activity($entries->item($i));
        }

        usort($activities, array("FeedImporter", "activitySort"));

        return $activities;
    }

    /**
     * Sort activities oldest-first
     */

    static function activitySort($a, $b)
    {
        if ($a->time == $b->time) {
            return 0;
        } else if ($a->time < $b->time) {
            return -1;
        } else {
            return 1;
        }
    }

    function userFromAuthor($author)
    {
        $user = User::staticGet('uri', $author->id);

        if (empty($user)) {
            $attrs =
                array('nickname' => Ostatus_profile::getActivityObjectNickname($author),
                      'uri' => $author->id);

            $user = User::register($attrs);
        }

        $profile = $user->getProfile();
        Ostatus_profile::updateProfile($profile, $author);

        // FIXME: Update avatar
        return $user;
    }
}