actions/twitapifriendships.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/twitterapi.php');
  23
  24 class TwitapifriendshipsAction extends TwitterapiAction {
  25
  26         function is_readonly() {
  27
  28                 static $write_methods = array(  'create',
  29                                                                                 'destroy');
  30
  31                 $cmdtext = explode('.', $this->arg('method'));
  32
  33                 if (in_array($cmdtext[0], $write_methods)) {
  34                         return false;
  35                 }
  36
  37                 return true;
  38         }
  39
  40         function create($args, $apidata) {
  41                 parent::handle($args);
  42
  43                 if ($_SERVER['REQUEST_METHOD'] != 'POST') {
  44                         $this->client_error(_('This method requires a POST.'), 400, $apidata['content-type']);
  45                         return;
  46                 }
  47
  48                 $id = $apidata['api_arg'];
  49
  50                 $other = $this->get_user($id);
  51
  52                 if (!$other) {
  53                         $this->client_error(_('Could not follow user: User not found.'), 403, $apidata['content-type']);
  54                         return;
  55                 }
  56
  57                 $user = $apidata['user'];
  58
  59                 if ($user->isSubscribed($other)) {
  60                         $errmsg = sprintf(_('Could not follow user: %s is already on your list.'), $other->nickname);
  61                         $this->client_error($errmsg, 403, $apidata['content-type']);
  62                         return;
  63                 }
  64
  65                 $sub = new Subscription();
  66
  67                 $sub->query('BEGIN');
  68
  69                 $sub->subscriber = $user->id;
  70                 $sub->subscribed = $other->id;
  71                 $sub->created = DB_DataObject_Cast::dateTime(); # current time
  72
  73                 $result = $sub->insert();
  74
  75                 if (!$result) {
  76                         $errmsg = sprintf(_('Could not follow user: %s is already on your list.'), $other->nickname);
  77                         $this->client_error($errmsg, 400, $apidata['content-type']);
  78                         return;
  79                 }
  80
  81                 $sub->query('COMMIT');
  82
  83                 mail_subscribe_notify($other, $user);
  84
  85                 $type = $apidata['content-type'];
  86                 $this->init_document($type);
  87                 $this->show_profile($other, $type);
  88                 $this->end_document($type);
  89
  90         }
  91
  92         function destroy($args, $apidata) {
  93                 parent::handle($args);
  94
  95                 if (!in_array($_SERVER['REQUEST_METHOD'], array('POST', 'DELETE'))) {
  96                         $this->client_error(_('This method requires a POST or DELETE.'), 400, $apidata['content-type']);
  97                         return;
  98                 }
  99
 100                 $id = $apidata['api_arg'];
 101
 102                 # We can't subscribe to a remote person, but we can unsub
 103
 104                 $other = $this->get_profile($id);
 105                 $user = $apidata['user'];
 106
 107                 $sub = new Subscription();
 108                 $sub->subscriber = $user->id;
 109                 $sub->subscribed = $other->id;
 110
 111                 if ($sub->find(TRUE)) {
 112                         $sub->query('BEGIN');
 113                         $sub->delete();
 114                         $sub->query('COMMIT');
 115                 } else {
 116                         $this->client_error(_('You are not friends with the specified user.'), 403, $apidata['content-type']);
 117                         return;
 118                 }
 119
 120                 $type = $apidata['content-type'];
 121                 $this->init_document($type);
 122                 $this->show_profile($other, $type);
 123                 $this->end_document($type);
 124
 125         }
 126
 127         function exists($args, $apidata) {
 128                 parent::handle($args);
 129
 130                 if (!in_array($apidata['content-type'], array('xml', 'json'))) {
 131                         common_user_error(_('API method not found!'), $code = 404);
 132                         return;
 133                 }
 134
 135                 $user_a_id = $this->trimmed('user_a');
 136                 $user_b_id = $this->trimmed('user_b');
 137
 138                 $user_a = $this->get_user($user_a_id);
 139                 $user_b = $this->get_user($user_b_id);
 140
 141                 if (!$user_a || !$user_b) {
 142                         $this->client_error(_('Two user ids or screen_names must be supplied.'), 400, $apidata['content-type']);
 143                         return;
 144                 }
 145
 146                 if ($user_a->isSubscribed($user_b)) {
 147                         $result = 'true';
 148                 } else {
 149                         $result = 'false';
 150                 }
 151
 152                 switch ($apidata['content-type']) {
 153                  case 'xml':
 154                         $this->init_document('xml');
 155                         common_element('friends', NULL, $result);
 156                         $this->end_document('xml');
 157                         break;
 158                  case 'json':
 159                         $this->init_document('json');
 160                         print json_encode($result);
 161                         $this->end_document('json');
 162                         break;
 163                  default:
 164                         break;
 165                 }
 166
 167         }
 168
 169 }