lib/twitterapi.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 class TwitterapiAction extends Action {
  23
  24         function handle($args) {
  25                 parent::handle($args);
  26         }
  27
  28         function twitter_user_array($profile) {
  29
  30                 $twitter_user = array();
  31
  32                 $twitter_user['name'] = $profile->getBestName();
  33                 $twitter_user['followers_count'] = $this->count_subscriptions($profile);
  34                 $twitter_user['screen_name'] = $profile->nickname;
  35                 $twitter_user['description'] = ($profile->bio) ? $profile->bio : NULL;
  36                 $twitter_user['location'] = ($profile->location) ? $profile->location : NULL;
  37                 $twitter_user['id'] = intval($profile->id);
  38
  39                 $avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);
  40
  41                 $twitter_user['profile_image_url'] = ($avatar) ? common_avatar_display_url($avatar) : common_default_avatar(AVATAR_STREAM_SIZE);
  42                 $twitter_user['protected'] = false; # not supported by Laconica yet
  43                 $twitter_user['url'] = ($profile->homepage) ? $profile->homepage : NULL;
  44
  45                 return $twitter_user;
  46         }
  47
  48         function twitter_status_array($notice) {
  49
  50                 $twitter_status = array();
  51
  52                 $twitter_status['text'] = $notice->content;
  53                 $twitter_status['truncated'] = false; # Not possible on Laconica
  54                 $twitter_status['created_at'] = $this->date_twitter($notice->created);
  55                 $twitter_status['in_reply_to_status_id'] = ($notice->reply_to) ? intval($notice->reply_to) : NULL;
  56                 $twitter_status['source'] = NULL; # XXX: twitterific, twitterfox, etc. Not supported yet.
  57                 $twitter_status['id'] = intval($notice->id);
  58                 $twitter_status['in_reply_to_user_id'] = ($notice->reply_to) ? $this->replier_by_reply($notice->reply_to) : NULL;
  59                 $twitter_status['favorited'] = NULL; # XXX: Not implemented on Laconica yet.
  60
  61                 $profile = $notice->getProfile();
  62                 $twitter_user = $this->twitter_user_array($profile);
  63                 $twitter_status['user'] = $twitter_user;
  64
  65                 return $twitter_status;
  66         }
  67
  68         function twitter_rss_entry_array($notice) {
  69
  70                 $profile = $notice->getProfile();
  71
  72                 $server = common_config('site', 'server');
  73
  74                 $entry = array();
  75
  76                 $entry['content'] = $profile->nickname . ': ' . $notice->content;
  77                 $entry['title'] = $entry['content'];
  78                 $entry['link'] = common_local_url('shownotice', array('notice' => $notice->id));;
  79                 $entry['published'] = $this->date_iso8601($notice->created);
  80                 $entry['id'] = "tag:$server,$entry[published]:$entry[link]";
  81                 $entry['updated'] = $entry['published'];
  82
  83                 # RSS Item specific
  84                 $entry['description'] = $entry['content'];
  85                 $entry['pubDate'] = $this->date_rfc2822($notice->created);
  86                 $entry['guid'] = $entry['link'];
  87
  88                 return $entry;
  89         }
  90
  91         function render_twitter_xml_status($twitter_status) {
  92                 common_element_start('status');
  93                 common_element('created_at', NULL, $twitter_status['created_at']);
  94                 common_element('id', NULL, $twitter_status['id']);
  95                 common_element('text', NULL, $twitter_status['text']);
  96                 common_element('source', NULL, $twitter_status['source']);
  97                 common_element('truncated', NULL, $twitter_status['truncated']);
  98                 common_element('in_reply_to_status_id', NULL, $twitter_status['in_reply_to_status_id']);
  99                 common_element('in_reply_to_user_id', NULL, $twitter_status['in_reply_to_user_id']);
 100                 common_element('favorited', Null, $twitter_status['favorited']);
 101
 102                 $this->render_twitter_xml_user($twitter_status['user']);
 103
 104                 common_element_end('status');
 105         }
 106
 107         function render_twitter_xml_user($twitter_user) {
 108                 common_element_start('user');
 109                 common_element('id', NULL, $twitter_user['id']);
 110                 common_element('name', NULL, $twitter_user['name']);
 111                 common_element('screen_name', NULL, $twitter_user['screen_name']);
 112                 common_element('location', NULL, $twitter_user['location']);
 113                 common_element('description', NULL, $twitter_user['description']);
 114                 common_element('profile_image_url', NULL, $twitter_user['profile_image_url']);
 115                 common_element('url', NULL, $twitter_user['url']);
 116                 common_element('protected', NULL, $twitter_user['protected']);
 117                 common_element('followers_count', NULL, $twitter_user['followers_count']);
 118                 common_element_end('user');
 119         }
 120
 121         function show_twitter_rss_item($entry) {
 122                 common_element_start('item');
 123                 common_element('title', NULL, $entry['title']);
 124                 common_element('description', NULL, $entry['description']);
 125                 common_element('pubDate', NULL, $entry['pubDate']);
 126                 common_element('guid', NULL, $entry['guid']);
 127                 common_element('link', NULL, $entry['link']);
 128                 common_element_end('item');
 129         }
 130
 131         function show_twitter_atom_entry($entry) {
 132             common_element_start('entry');
 133                 common_element('title', NULL, $entry['title']);
 134                 common_element('content', array('type' => 'html'), $entry['title']);
 135                 common_element('id', NULL, $entry['id']);
 136                 common_element('published', NULL, $entry['published']);
 137                 common_element('updated', NULL, $entry['updated']);
 138                 common_element('link', array('href' => $entry['link'], 'rel' => 'alternate', 'type' => 'text/html'), NULL);
 139                 common_element_end('entry');
 140         }
 141
 142         function render_twitter_json_statuses($twitter_statuses) {
 143                 print(json_encode($twitter_statuses));
 144         }
 145
 146         // Anyone know what date format this is?
 147         // Twitter's dates look like this: "Mon Jul 14 23:52:38 +0000 2008" -- Zach
 148         function date_twitter($dt) {
 149                 $t = strtotime($dt);
 150                 return date("D M d G:i:s O Y", $t);
 151         }
 152
 153         function date_rfc2822($dt) {
 154                 $t = strtotime($dt);
 155                 return date("r", $t);
 156         }
 157
 158         function date_iso8601($dt) {
 159                 $t = strtotime($dt);
 160                 return date("c", $t);
 161         }
 162
 163         function replier_by_reply($reply_id) {
 164
 165                 $notice = Notice::staticGet($reply_id);
 166
 167                 if (!$notice) {
 168                         common_debug("TwitterapiAction::replier_by_reply: Got a bad notice_id: $reply_id");
 169                 }
 170
 171                 $profile = $notice->getProfile();
 172
 173                 if (!$profile) {
 174                         common_debug("TwitterapiAction::replier_by_reply: Got a bad profile_id: $profile_id");
 175                         return false;
 176                 }
 177
 178                 return intval($profile->id);
 179         }
 180
 181         // XXX: Candidate for a general utility method somewhere?
 182         function count_subscriptions($profile) {
 183
 184                 $count = 0;
 185                 $sub = new Subscription();
 186                 $sub->subscribed = $profile->id;
 187
 188                 if ($sub->find()) {
 189                         while ($sub->fetch()) {
 190                                 if ($sub->token) {
 191                                         $other = Remote_profile::staticGet('id', $sub->subscriber);
 192                                 } else {
 193                                         $other = User::staticGet('id', $sub->subscriber);
 194                                 }
 195                                 if (!$other) {
 196                                         common_debug('Got a bad subscription: '.print_r($sub,TRUE));
 197                                         continue;
 198                                 }
 199                                 $count++;
 200                         }
 201                 }
 202
 203                 if ($count > 0) {
 204                         return $count;
 205                 }
 206
 207                 return NULL;
 208         }
 209
 210         function init_twitter_rss() {
 211                 common_start_xml();
 212                 common_element_start('rss', array('version' => '2.0'));
 213         }
 214
 215         function end_twitter_rss() {
 216                 common_element_end('rss');
 217                 common_end_xml();
 218         }
 219
 220         function get_twitter_channel() {
 221
 222         }
 223
 224         function init_twitter_atom() {
 225                 common_start_xml();
 226                 common_element_start('feed', array('xmlns' => 'http://www.w3.org/2005/Atom', 'xml:lang' => 'en-US'));
 227         }
 228
 229         function end_twitter_atom() {
 230                 common_end_xml();
 231                 common_element_end('feed');
 232         }
 233
 234 }