actions/twittersettings.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 require_once(INSTALLDIR.'/lib/settingsaction.php');
  23
  24 class TwittersettingsAction extends SettingsAction {
  25
  26         function get_instructions() {
  27                 return _('Add your Twitter account to automatically send your notices to Twitter, ' .
  28                         'and subscribe to Twitter friends already here.');
  29         }
  30
  31         function show_form($msg=NULL, $success=false) {
  32                 $user = common_current_user();
  33                 $profile = $user->getProfile();
  34                 $fuser = NULL;
  35                 $flink = Foreign_link::getForeignLink($user->id, 1); // 1 == Twitter
  36
  37                 if ($flink) {
  38                         $fuser = Foreign_user::staticGet('user_id', $flink->user_id);
  39                 }
  40
  41                 $this->form_header(_('Twitter settings'), $msg, $success);
  42                 common_element_start('form', array('method' => 'post',
  43                                                                                    'id' => 'twittersettings',
  44                                                                                    'action' =>
  45                                                                                    common_local_url('twittersettings')));
  46
  47                 if ($fuser) {
  48                         common_element_start('p');
  49
  50                         common_element('span', 'twitter_user', $fuser->nickname);
  51                         common_element('a', array('href' => $fuser->uri),  $fuser->uri);
  52                         common_element('span', 'input_instructions',
  53                                        _('Current verified Twitter User'));
  54                         common_hidden('flink_user_id', $flink->user_id);
  55                         common_element_end('p');
  56                         common_submit('remove', _('Remove'));
  57                 } else {
  58
  59                         // XXX: Should we make an educated guess as to the twitter acct name? -- Zach
  60                         common_input('twitter_username', _('Twitter Username'),
  61                                                  ($this->arg('twitter_username')) ? $this->arg('twitter_username') : $profile->nickname,
  62                                                  _('No spaces, please.')); // hey, it's what Twitter says
  63
  64                         common_password('twitter_password', _('Twitter Password'));
  65                 }
  66
  67                 common_element('h2', NULL, _('Preferences'));
  68
  69                 if ($flink) {
  70                         common_checkbox('noticesync', _('Automatically send my notices to Twitter.'),
  71                                 ($flink->noticesync) ? true : false);
  72                         common_checkbox('friendsync', _('Subscribe to my Twitter friends here.'),
  73                                 ($flink->friendsync) ? true : false);
  74                         common_submit('save', _('Save'));
  75                 } else {
  76                         common_checkbox('noticesync', _('Automatically send my notices to Twitter.'), true);
  77                         common_checkbox('friendsync', _('Subscribe to my Twitter friends here.'), true);
  78                         common_submit('add', _('Add'));
  79                 }
  80
  81                 common_element_end('form');
  82                 common_show_footer();
  83         }
  84
  85         function handle_post() {
  86                 if ($this->arg('save')) {
  87                         $this->save_preferences();
  88                 } else if ($this->arg('add')) {
  89                         $this->add_twitter_acct();
  90                 } else if ($this->arg('remove')) {
  91                         $this->remove_twitter_acct();
  92                 } else {
  93                         $this->show_form(_('Unexpected form submission.'));
  94                 }
  95         }
  96
  97         function add_twitter_acct() {
  98                 $twitter_username = $this->trimmed('twitter_username');
  99                 $twitter_password = $this->trimmed('twitter_password');
 100                 $noticesync = $this->boolean('noticesync');
 101                 $friendsync = $this->boolean('friendsync');
 102
 103                 if (!Validate::string($twitter_username, array('min_length' => 1,
 104                                                                                            'max_length' => 64,
 105                                                                                            'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
 106                         $this->show_form(_('Username must have only lowercase letters and numbers and no spaces.'));
 107                         return;
 108                 }
 109
 110                 // Verify this is a real Twitter user.
 111                 if (!$this->verify_credentials($twitter_username, $twitter_password)) {
 112                         $this->show_form(_('Could not verify your Twitter credentials!'));
 113                         return;
 114                 }
 115
 116                 // Now that we have a valid Twitter user, we have to make another api call to
 117                 // find its Twitter ID.  Dumb, but true.
 118                 $twitter_id = $this->get_twitter_id($twitter_username);
 119
 120                 if (!$twitter_id) {
 121                         $this->show_form(sprintf(_('Unable to retrieve account information for "%s" from Twitter.'), $twitter_username));
 122                         return;
 123                 }
 124
 125                 $fuser = DB_DataObject::factory('foreign_user');
 126                 $fuser->id = $twitter_id;
 127                 $fuser->service = 1; // Twitter
 128                 $fuser->uri = "http://www.twitter.com/$twitter_username";
 129                 $fuser->nickname = $twitter_username;
 130                 $fuser->created = common_sql_now();
 131                 $result = $fuser->insert();
 132
 133                 if (!$result) {
 134                         common_log_db_error($fuser, 'INSERT', __FILE__);
 135                         $this->show_form(_('Unable to save your Twitter settings!'));
 136                         return;
 137                 }
 138
 139                 $user = common_current_user();
 140
 141                 $flink = DB_DataObject::factory('foreign_link');
 142                 $flink->user_id = $user->id;
 143                 $flink->foreign_id = $fuser->id;
 144                 $flink->service = 1; // Twitter
 145                 $flink->credentials = $twitter_password;
 146                 $flink->created = common_sql_now();
 147                 $flink->noticesync = ($noticesync) ? 1 : 0;
 148                 $flink->friendsync = ($friendsync) ? 2 : 0;
 149                 $flink->profilesync = 0; // XXX: leave as default?
 150                 $flink_id = $flink->insert();
 151
 152                 if (!$flink_id) {
 153                         common_log_db_error($flink, 'INSERT', __FILE__);
 154                         $this->show_form(_('Unable to save your Twitter settings!'));
 155                         return;
 156                 }
 157
 158                 $this->show_form(_('Twitter settings saved.'), true);
 159         }
 160
 161         function remove_twitter_acct() {
 162                 $user = common_current_user();
 163
 164                 // For now we assume one Twitter acct per Laconica acct
 165                 $flink = Foreign_link::getForeignLink($user->id, 1);
 166                 $fuser = Foreign_user::getForeignUser($flink->foreign_id, 1);
 167                 $flink_user_id = $this->arg('flink_user_id');
 168
 169                 if (!$flink) {
 170                         common_debug("couldn't get flink");
 171                 }
 172
 173                 # Maybe an old tab open...?
 174                 if ($flink->user_id != $flink_user_id) {
 175                         common_debug("flink user_id = " . $flink->user_id);
 176                     $this->show_form(_('That is not your Twitter account.'));
 177                     return;
 178                 }
 179
 180                 $result = $fuser->delete();
 181
 182                 if (!$result) {
 183                         common_log_db_error($flink, 'DELETE', __FILE__);
 184                         $this->show_form(_('Couldn\'t remove Twitter user.'));
 185                         return;
 186                 }
 187
 188                 $result = $flink->delete();
 189
 190                 if (!$result) {
 191                         common_log_db_error($flink, 'DELETE', __FILE__);
 192                         common_server_error(_('Couldn\'t remove Twitter user.'));
 193                         return;
 194                 }
 195
 196                 $this->show_form(_('Twitter account removed.'), TRUE);
 197         }
 198
 199         function save_preferences() {
 200                 $noticesync = $this->boolean('noticesync');
 201                 $friendsync = $this->boolean('friendsync');
 202                 $user = common_current_user();
 203                 $flink = Foreign_link::getForeignLink($user->id, 1);
 204
 205                 if (!$flink) {
 206                         common_log_db_error($flink, 'SELECT', __FILE__);
 207                         $this->show_form(_('Couldn\'t save Twitter preferences.'));
 208                         return;
 209                 }
 210
 211                 $flink->noticesync = ($noticesync) ? 1 : 0;
 212                 $flink->friendsync = ($friendsync) ? 2 : 0;
 213                 // $flink->profilesync = 0; // XXX: leave as default?
 214                 $result = $flink->update();
 215
 216                 if (!$result) {
 217                         common_log_db_error($flink, 'UPDATE', __FILE__);
 218                         $this->show_form(_('Couldn\'t save Twitter preferences.'));
 219                         return;
 220                 }
 221
 222                 $this->show_form(_('Twitter preferences saved.'));
 223
 224                 return;
 225         }
 226
 227         function get_twitter_id($twitter_username) {
 228                 $uri = "http://twitter.com/users/show/$twitter_username.json";
 229                 $data = $this->get_twitter_data($uri);
 230
 231                 if (!$data) {
 232                         return NULL;
 233                 }
 234
 235                 $user = json_decode($data);
 236
 237                 if (!$user) {
 238                         return NULL;
 239                 }
 240
 241                 return $user->id;
 242         }
 243
 244         function verify_credentials($user, $password) {
 245                 $uri = 'http://twitter.com/account/verify_credentials.json';
 246                 $data = $this->get_twitter_data($uri, $user, $password);
 247
 248                 if (!$data) {
 249                         return false;
 250                 }
 251
 252                 $creds = json_decode($data);
 253
 254                 if (!$creds) {
 255                         return false;
 256                 }
 257
 258                 if ($creds->authorized == 1) {
 259                         return true;
 260                 }
 261
 262                 return false;
 263         }
 264
 265         // PHP's cURL the best thing to use here? -- Zach
 266         function get_twitter_data($uri, $user=NULL, $password=NULL) {
 267                 $options = array(
 268                                 CURLOPT_USERPWD => "$user:$password",
 269                                 CURLOPT_RETURNTRANSFER  => true,
 270                                 CURLOPT_FAILONERROR             => true,
 271                                 CURLOPT_HEADER                  => false,
 272                                 CURLOPT_FOLLOWLOCATION  => true,
 273                                 // CURLOPT_USERAGENT            => "identi.ca",
 274                                 CURLOPT_CONNECTTIMEOUT  => 120,
 275                                 CURLOPT_TIMEOUT                 => 120
 276                 );
 277
 278                 $ch = curl_init($uri);
 279             curl_setopt_array($ch, $options);
 280             $data = curl_exec($ch);
 281             $errmsg = curl_error($ch);
 282
 283                 if ($errmsg) {
 284                         common_debug("cURL error: $errmsg - trying to load: $uri with user $user.", __FILE__);
 285                 }
 286
 287                 curl_close($ch);
 288
 289                 return $data;
 290         }
 291
 292 }