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                         $fuser = Foreign_user::getForeignUser($flink->foreign_id, 1);
  39                 }
  40
  41                 $this->form_header(_('Twitter settings'), $msg, $success);
  42                 common_element_start('form', array('method' => 'post',
  43                                                                                    'id' => 'twittersettings',
  44                                                                                    'action' =>
  45                                                                                    common_local_url('twittersettings')));
  46                 common_hidden('token', common_session_token());
  47
  48                 common_element('h2', NULL, _('Twitter Account'));
  49
  50                 if ($fuser) {
  51                         common_element_start('p');
  52
  53                         common_element('span', 'twitter_user', $fuser->nickname);
  54                         common_element('a', array('href' => $fuser->uri),  $fuser->uri);
  55                         common_element('span', 'input_instructions',
  56                                        _('Current verified Twitter account.'));
  57                         common_hidden('flink_foreign_id', $flink->foreign_id);
  58                         common_element_end('p');
  59                         common_submit('remove', _('Remove'));
  60                 } else {
  61
  62                         // XXX: Should we make an educated guess as to the twitter acct name? -- Zach
  63                         common_input('twitter_username', _('Twitter Username'),
  64                                                  ($this->arg('twitter_username')) ? $this->arg('twitter_username') : $profile->nickname,
  65                                                  _('No spaces, please.')); // hey, it's what Twitter says
  66
  67                         common_password('twitter_password', _('Twitter Password'));
  68                 }
  69
  70                 common_element('h2', NULL, _('Preferences'));
  71
  72                 if ($flink) {
  73                         common_checkbox('noticesync', _('Automatically send my notices to Twitter.'),
  74                                 ($flink->noticesync > 0) ? true : false);
  75
  76                         common_checkbox('replysync', _('Don\'t send local "@" replies to Twitter.'),
  77                                 ($flink->noticesync == 3) ? true : false, NULL, 'true');
  78
  79                         common_checkbox('friendsync', _('Subscribe to my Twitter friends here.'),
  80                                 ($flink->friendsync) ? true : false, NULL, 'true', true);
  81
  82                         common_submit('save', _('Save'));
  83                 } else {
  84                         common_checkbox('noticesync', _('Automatically send my notices to Twitter.'), true);
  85                         common_checkbox('replysync', _('Don\'t send local "@" replies to Twitter.'), false, NULL, 'true');
  86                         common_checkbox('friendsync', _('Subscribe to my Twitter friends here.'), false, NULL, 'true', true);
  87                         common_submit('add', _('Add'));
  88                 }
  89
  90                 common_element_end('form');
  91                 common_show_footer();
  92         }
  93
  94         function handle_post() {
  95
  96                 # CSRF protection
  97                 $token = $this->trimmed('token');
  98                 if (!$token || $token != common_session_token()) {
  99                         $this->show_form(_('There was a problem with your session token. Try again, please.'));
 100                         return;
 101                 }
 102
 103                 if ($this->arg('save')) {
 104                         $this->save_preferences();
 105                 } else if ($this->arg('add')) {
 106                         $this->add_twitter_acct();
 107                 } else if ($this->arg('remove')) {
 108                         $this->remove_twitter_acct();
 109                 } else {
 110                         $this->show_form(_('Unexpected form submission.'));
 111                 }
 112         }
 113
 114         function add_twitter_acct() {
 115                 $twitter_username = $this->trimmed('twitter_username');
 116                 $twitter_password = $this->trimmed('twitter_password');
 117                 $noticesync = $this->boolean('noticesync');
 118                 $replysync = $this->boolean('replysync');
 119                 $friendsync = $this->boolean('friendsync');
 120
 121                 if (!Validate::string($twitter_username, array('min_length' => 1,
 122                                                                                                            'max_length' => 15,
 123                                                                                                            'format' => VALIDATE_NUM . VALIDATE_ALPHA . '_'))) {
 124                         $this->show_form(_('Username must have only numbers, upper- and lowercase letters, and underscore (_). 15 chars max.'));
 125                         return;
 126                 }
 127
 128                 // Verify this is a real Twitter user.
 129                 if (!$this->verify_credentials($twitter_username, $twitter_password)) {
 130                         $this->show_form(_('Could not verify your Twitter credentials!'));
 131                         return;
 132                 }
 133
 134                 // Now that we have a valid Twitter user, we have to make another api call to
 135                 // find its Twitter ID.  Dumb, but true.
 136                 $twitter_id = $this->get_twitter_id($twitter_username, $twitter_password);
 137
 138                 if (!$twitter_id) {
 139                         $this->show_form(sprintf(_('Unable to retrieve account information for "%s" from Twitter.'), $twitter_username));
 140                         return;
 141                 }
 142
 143                 $fuser = DB_DataObject::factory('foreign_user');
 144                 $fuser->id = $twitter_id;
 145                 $fuser->service = 1; // Twitter
 146                 $fuser->uri = "http://www.twitter.com/$twitter_username";
 147                 $fuser->nickname = $twitter_username;
 148                 $fuser->created = common_sql_now();
 149                 $result = $fuser->insert();
 150
 151                 if (!$result) {
 152                         common_log_db_error($fuser, 'INSERT', __FILE__);
 153                         $this->show_form(_('Unable to save your Twitter settings!'));
 154                         return;
 155                 }
 156
 157                 $user = common_current_user();
 158
 159                 $flink = DB_DataObject::factory('foreign_link');
 160                 $flink->user_id = $user->id;
 161                 $flink->foreign_id = $fuser->id;
 162                 $flink->service = 1; // Twitter
 163                 $flink->credentials = $twitter_password;
 164                 $flink->created = common_sql_now();
 165
 166                 if ($noticesync) {
 167                         if ($replysync) {
 168                                 $flink->noticesync = 3;
 169                         } else {
 170                                 $flink->noticesync = 1;
 171                         }
 172                 } else {
 173                         $flink->noticesync = 0;
 174                 }
 175
 176                 $flink->friendsync = ($friendsync) ? 2 : 0;
 177                 $flink->profilesync = 0; // XXX: leave as default?
 178                 $flink_id = $flink->insert();
 179
 180                 if (!$flink_id) {
 181                         common_log_db_error($flink, 'INSERT', __FILE__);
 182                         $this->show_form(_('Unable to save your Twitter settings!'));
 183                         return;
 184                 }
 185
 186                 $this->show_form(_('Twitter settings saved.'), true);
 187         }
 188
 189         function remove_twitter_acct() {
 190                 $user = common_current_user();
 191
 192                 // For now we assume one Twitter acct per Laconica acct
 193                 $flink = Foreign_link::getForeignLink($user->id, 1);
 194                 $fuser = Foreign_user::getForeignUser($flink->foreign_id, 1);
 195                 $flink_foreign_id = $this->arg('flink_foreign_id');
 196
 197                 if (!$flink) {
 198                         common_debug("couldn't get flink");
 199                 }
 200
 201                 # Maybe an old tab open...?
 202                 if ($flink->foreign_id != $flink_foreign_id) {
 203                         common_debug("flink user_id = " . $flink->user_id);
 204                     $this->show_form(_('That is not your Twitter account.'));
 205                     return;
 206                 }
 207
 208                 $result = $fuser->delete();
 209
 210                 if (!$result) {
 211                         common_log_db_error($fuser, 'DELETE', __FILE__);
 212                         $this->show_form(_('Couldn\'t remove Twitter user.'));
 213                         return;
 214                 }
 215
 216                 $result = $flink->delete();
 217
 218                 if (!$result) {
 219                         common_log_db_error($flink, 'DELETE', __FILE__);
 220                         common_server_error(_('Couldn\'t remove Twitter user.'));
 221                         return;
 222                 }
 223
 224                 $this->show_form(_('Twitter account removed.'), TRUE);
 225         }
 226
 227         function save_preferences() {
 228                 $noticesync = $this->boolean('noticesync');
 229                 $friendsync = $this->boolean('friendsync');
 230                 $replysync = $this->boolean('replysync');
 231
 232                 $user = common_current_user();
 233                 $flink = Foreign_link::getForeignLink($user->id, 1);
 234
 235                 if (!$flink) {
 236                         common_log_db_error($flink, 'SELECT', __FILE__);
 237                         $this->show_form(_('Couldn\'t save Twitter preferences.'));
 238                         return;
 239                 }
 240
 241                 if ($noticesync) {
 242                         if ($replysync) {
 243                                 $flink->noticesync = 3;
 244                         } else {
 245                                 $flink->noticesync = 1;
 246                         }
 247                 } else {
 248                         $flink->noticesync = 0;
 249                 }
 250
 251                 $flink->friendsync = ($friendsync) ? 2 : 0;
 252                 // $flink->profilesync = 0; // XXX: leave as default?
 253                 $result = $flink->update();
 254
 255                 if (!$result) {
 256                         common_log_db_error($flink, 'UPDATE', __FILE__);
 257                         $this->show_form(_('Couldn\'t save Twitter preferences.'));
 258                         return;
 259                 }
 260
 261                 $this->show_form(_('Twitter preferences saved.'));
 262
 263                 return;
 264         }
 265
 266         function get_twitter_id($user, $password) {
 267                 $uri = "http://twitter.com/users/show/$user.json";
 268                 $data = $this->get_twitter_data($uri, $user, $password);
 269
 270                 if (!$data) {
 271                         return NULL;
 272                 }
 273
 274                 $user = json_decode($data);
 275
 276                 if (!$user) {
 277                         return NULL;
 278                 }
 279
 280                 return $user->id;
 281         }
 282
 283         function verify_credentials($user, $password) {
 284                 $uri = 'http://twitter.com/account/verify_credentials.json';
 285                 $data = $this->get_twitter_data($uri, $user, $password);
 286
 287                 if (!$data) {
 288                         return false;
 289                 }
 290
 291                 $creds = json_decode($data);
 292
 293                 if (!$creds) {
 294                         return false;
 295                 }
 296
 297                 if ($creds->authorized == 1) {
 298                         return true;
 299                 }
 300
 301                 return false;
 302         }
 303
 304         // PHP's cURL the best thing to use here? -- Zach
 305         function get_twitter_data($uri, $user=NULL, $password=NULL) {
 306                 $options = array(
 307                                 CURLOPT_USERPWD => "$user:$password",
 308                                 CURLOPT_RETURNTRANSFER  => true,
 309                                 CURLOPT_FAILONERROR             => true,
 310                                 CURLOPT_HEADER                  => false,
 311                                 CURLOPT_FOLLOWLOCATION  => true,
 312                                 // CURLOPT_USERAGENT            => "identi.ca",
 313                                 CURLOPT_CONNECTTIMEOUT  => 120,
 314                                 CURLOPT_TIMEOUT                 => 120
 315                 );
 316
 317                 $ch = curl_init($uri);
 318             curl_setopt_array($ch, $options);
 319             $data = curl_exec($ch);
 320             $errmsg = curl_error($ch);
 321
 322                 if ($errmsg) {
 323                         common_debug("cURL error: $errmsg - trying to load: $uri with user $user.", __FILE__);
 324                 }
 325
 326                 curl_close($ch);
 327
 328                 return $data;
 329         }
 330
 331 }