actions/twitapioembed.php

   1 <?php
   2 /**
   3  * Laconica, the distributed open-source microblogging tool
   4  *
   5  * Laconica-only extensions to the Twitter-like API
   6  *
   7  * PHP version 5
   8  *
   9  * LICENCE: This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU Affero General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Affero General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Affero General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  * @category  Twitter
  23  * @package   Laconica
  24  * @author    Evan Prodromou <evan@controlyourself.ca>
  25  * @copyright 2008 Control Yourself, Inc.
  26  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  27  * @link      http://laconi.ca/
  28  */
  29
  30 if (!defined('LACONICA')) {
  31     exit(1);
  32 }
  33
  34 require_once INSTALLDIR.'/lib/twitterapi.php';
  35
  36 /**
  37  * Oembed provider implementation
  38  *
  39  * This class handles all /main/oembed(.xml|.json)/ requests.
  40  *
  41  * @category  oEmbed
  42  * @package   Laconica
  43  * @author    Craig Andrews <candrews@integralblue.com>
  44  * @copyright 2008 Control Yourself, Inc.
  45  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  46  * @link      http://laconi.ca/
  47  */
  48
  49 class TwitapioembedAction extends TwitterapiAction
  50 {
  51
  52     function oembed($args, $apidata)
  53     {
  54         parent::handle($args);
  55
  56         common_debug("in oembed api action");
  57
  58         $this->auth_user = $apidata['user'];
  59
  60         $url = $args['url'];
  61         if( substr(strtolower($url),0,strlen(common_root_url())) == strtolower(common_root_url()) ){
  62             $path = substr($url,strlen(common_root_url()));
  63
  64             $r = Router::get();
  65
  66             $proxy_args = $r->map($path);
  67
  68             if (!$proxy_args) {
  69                 $this->serverError(_("$path not found"), 404);
  70             }
  71             $oembed=array();
  72             $oembed['version']='1.0';
  73             $oembed['provider_name']=common_config('site', 'name');
  74             $oembed['provider_url']=common_root_url();
  75             switch($proxy_args['action']){
  76                 case 'shownotice':
  77                     $oembed['type']='link';
  78                     $id = $proxy_args['notice'];
  79                     $notice = Notice::staticGet($id);
  80                     if(empty($notice)){
  81                         $this->serverError(_("notice $id not found"), 404);
  82                     }
  83                     $profile = $notice->getProfile();
  84                     if (empty($profile)) {
  85                         $this->serverError(_('Notice has no profile'), 500);
  86                     }
  87                     if (!empty($profile->fullname)) {
  88                         $authorname = $profile->fullname . ' (' . $profile->nickname . ')';
  89                     } else {
  90                         $authorname = $profile->nickname;
  91                     }
  92                     $oembed['title'] = sprintf(_('%1$s\'s status on %2$s'),
  93                         $authorname,
  94                         common_exact_date($notice->created));
  95                     $oembed['author_name']=$authorname;
  96                     $oembed['author_url']=$profile->profileurl;
  97                     $oembed['url']=($notice->url?$notice->url:$notice->uri);
  98                     $oembed['html']=$notice->rendered;
  99                     break;
 100                 case 'attachment':
 101                     $id = $proxy_args['attachment'];
 102                     $attachment = File::staticGet($id);
 103                     if(empty($attachment)){
 104                         $this->serverError(_("attachment $id not found"), 404);
 105                     }
 106                     if(empty($attachment->filename) && $file_oembed = File_oembed::staticGet('file_id', $attachment->id)){
 107                         // Proxy the existing oembed information
 108                         $oembed['type']=$file_oembed->type;
 109                         $oembed['provider']=$file_oembed->provider;
 110                         $oembed['provider_url']=$file_oembed->provider_url;
 111                         $oembed['width']=$file_oembed->width;
 112                         $oembed['height']=$file_oembed->height;
 113                         $oembed['html']=$file_oembed->html;
 114                         $oembed['title']=$file_oembed->title;
 115                         $oembed['author_name']=$file_oembed->author_name;
 116                         $oembed['author_url']=$file_oembed->author_url;
 117                         $oembed['url']=$file_oembed->url;
 118                     }else if(substr($attachment->mimetype,0,strlen('image/'))=='image/'){
 119                         $oembed['type']='photo';
 120                         //TODO set width and height
 121                         //$oembed['width']=
 122                         //$oembed['height']=
 123                         $oembed['url']=$attachment->url;
 124                     }else{
 125                         $oembed['type']='link';
 126                         $oembed['url']=common_local_url('attachment',
 127                             array('attachment' => $attachment->id));
 128                     }
 129                     if($attachment->title) $oembed['title']=$attachment->title;
 130                     break;
 131                 default:
 132                     $this->serverError(_("$path not supported for oembed requests"), 501);
 133             }
 134
 135             switch($apidata['content-type']){
 136                 case 'xml':
 137                     $this->init_document('xml');
 138                     $this->elementStart('oembed');
 139                     $this->element('version',null,$oembed['version']);
 140                     $this->element('type',null,$oembed['type']);
 141                     if($oembed['provider_name']) $this->element('provider_name',null,$oembed['provider_name']);
 142                     if($oembed['provider_url']) $this->element('provider_url',null,$oembed['provider_url']);
 143                     if($oembed['title']) $this->element('title',null,$oembed['title']);
 144                     if($oembed['author_name']) $this->element('author_name',null,$oembed['author_name']);
 145                     if($oembed['author_url']) $this->element('author_url',null,$oembed['author_url']);
 146                     if($oembed['url']) $this->element('url',null,$oembed['url']);
 147                     if($oembed['html']) $this->element('html',null,$oembed['html']);
 148                     if($oembed['width']) $this->element('width',null,$oembed['width']);
 149                     if($oembed['height']) $this->element('height',null,$oembed['height']);
 150                     if($oembed['cache_age']) $this->element('cache_age',null,$oembed['cache_age']);
 151                     if($oembed['thumbnail_url']) $this->element('thumbnail_url',null,$oembed['thumbnail_url']);
 152                     if($oembed['thumbnail_width']) $this->element('thumbnail_width',null,$oembed['thumbnail_width']);
 153                     if($oembed['thumbnail_height']) $this->element('thumbnail_height',null,$oembed['thumbnail_height']);
 154
 155
 156                     $this->elementEnd('oembed');
 157                     $this->end_document('xml');
 158                     break;
 159                 case 'json':
 160                     $this->init_document('json');
 161                     print(json_encode($oembed));
 162                     $this->end_document('json');
 163                     break;
 164                 default:
 165                     $this->serverError(_('content type ' . $apidata['content-type'] . ' not supported'), 501);
 166             }
 167
 168         }else{
 169             $this->serverError(_('Only ' . common_root_url() . ' urls over plain http please'), 404);
 170         }
 171     }
 172 }
 173