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 _('Enter your Twitter credentials 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
  35                 $this->form_header(_('Twitter settings'), $msg, $success);
  36
  37                 common_element_start('form', array('method' => 'post',
  38                                                                                    'id' => 'twittersettings',
  39                                                                                    'action' =>
  40                                                                                    common_local_url('twittersettings')));
  41
  42                 common_input('twitter_username', _('Twitter Username'),
  43                                          ($this->arg('twitter_username')) ? $this->arg('twitter_username') : $profile->nickname,
  44                                          _('No spaces, please.')); // hey, it's what Twitter says
  45
  46                 common_password('twitter_password', _('Twitter Password'));
  47
  48                 // these checkboxes don't do anything yet
  49
  50                 common_checkbox('repost', _('Automatically send my notices to Twitter.'), true);
  51                 common_checkbox('subscribe_friends', _('Subscribe to my Twitter friends here.'), true);
  52
  53                 common_submit('submit', _('Save'));
  54                 common_element_end('form');
  55                 common_show_footer();
  56         }
  57
  58         function handle_post() {
  59
  60                 $twitter_username = $this->trimmed('twitter_username');
  61                 $twitter_password = $this->trimmed('twitter_password');
  62
  63                 if (!Validate::string($twitter_username, array('min_length' => 1,
  64                                                                                            'max_length' => 64,
  65                                                                                            'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
  66                         $this->show_form(_('Username must have only lowercase letters and numbers and no spaces.'));
  67                         return;
  68                 }
  69
  70                 // Verify this is a real Twitter user.
  71                 if (!$this->verify_credentials($twitter_username, $twitter_password)) {
  72                         $this->show_form(_('Could not verify your Twitter credentials!'));
  73                         return;
  74                 }
  75
  76                 // Now that we have a valid Twitter user, we have to make another api call to
  77                 // find its Twitter ID.
  78                 $twitter_id = $this->get_twitter_id($twitter_username);
  79
  80                 if (!$twitter_id) {
  81                         $this->show_form(sprintf(_('Unable to retrieve account information for "%s" from Twitter.'), $twitter_username));
  82                         return;
  83                 }
  84
  85                 $user = common_current_user();
  86
  87                 $fuser = Foreign_user::save(
  88                                 array(
  89                                         'id' => $twitter_id,
  90                                         'service' => '0', // Twitter
  91                                         'uri' => "http://www.twitter.com/$twitter_username",
  92                                         'nickname' => $twitter_username,
  93                                         'user_id' => $user->id,
  94                                         'credentials' => $twitter_password
  95                                 ));
  96
  97                 if (!$fuser) {
  98                         $this->show_form(_('Unable to save your Twitter credentials!'));
  99                 }
 100
 101                 $this->show_form(_('Twitter settings saved.'), true);
 102         }
 103
 104         function get_twitter_id($twitter_username) {
 105
 106                 $uri = "http://twitter.com/users/show/$twitter_username.json";
 107
 108                 common_debug("uri; $uri");
 109
 110                 $data = $this->get_twitter_data($uri);
 111
 112                 if (!$data) {
 113                         return NULL;
 114                 }
 115
 116                 $user = json_decode($data);
 117
 118                 if (!$user) {
 119                         return NULL;
 120                 }
 121
 122                 return $user->id;
 123         }
 124
 125         function verify_credentials($user, $password) {
 126
 127                 $uri = 'http://twitter.com/account/verify_credentials.json';
 128                 $data = $this->get_twitter_data($uri, $user, $password);
 129
 130                 if (!$data) {
 131                         return false;
 132                 }
 133
 134                 $creds = json_decode($data);
 135
 136                 if (!$creds) {
 137                         return false;
 138                 }
 139
 140                 if ($creds->authorized == 1) {
 141                         return true;
 142                 }
 143
 144                 return false;
 145         }
 146
 147         // PHP's cURL the best thing to use here? -- Zach
 148         function get_twitter_data($uri, $user=NULL, $password=NULL) {
 149                 $options = array(
 150                                 CURLOPT_USERPWD => "$user:$password",
 151                                 CURLOPT_RETURNTRANSFER  => true,
 152                                 CURLOPT_FAILONERROR             => true,
 153                                 CURLOPT_HEADER                  => false,
 154                                 CURLOPT_FOLLOWLOCATION  => true,
 155                                 // CURLOPT_USERAGENT            => "identi.ca",
 156                                 CURLOPT_CONNECTTIMEOUT  => 120,
 157                                 CURLOPT_TIMEOUT                 => 120
 158                 );
 159
 160                 $ch = curl_init($uri);
 161             curl_setopt_array($ch, $options);
 162             $data = curl_exec($ch);
 163             $errmsg = curl_error($ch);
 164
 165                 if ($errmsg) {
 166                         common_debug("cURL error: $errmsg - trying to load: $uri with user $user.", __FILE__);
 167                 }
 168
 169                 curl_close($ch);
 170                 return $data;
 171         }
 172
 173
 174 }