mod/like.php

   1 <?php
   2
   3 require_once('include/security.php');
   4 require_once('include/bbcode.php');
   5 require_once('include/items.php');
   6
   7
   8 function like_content(&$a) {
   9
  10         if(! local_user() && ! remote_user()) {
  11                 return;
  12         }
  13
  14         $verb = notags(trim($_GET['verb']));
  15
  16         if(! $verb)
  17                 $verb = 'like';
  18
  19
  20         switch($verb) {
  21                 case 'like':
  22                 case 'unlike':
  23                         $activity = ACTIVITY_LIKE;
  24                         break;
  25                 case 'dislike':
  26                 case 'undislike':
  27                         $activity = ACTIVITY_DISLIKE;
  28                         break;
  29                 default:
  30                         return;
  31                         break;
  32         }
  33
  34
  35         $item_id = (($a->argc > 1) ? notags(trim($a->argv[1])) : 0);
  36
  37         logger('like: verb ' . $verb . ' item ' . $item_id);
  38
  39
  40         $r = q("SELECT * FROM `item` WHERE ( `id` = '%s' OR `uri` = '%s') AND `id` = `parent` LIMIT 1",
  41                 dbesc($item_id),
  42                 dbesc($item_id)
  43         );
  44
  45         if(! $item_id || (! count($r))) {
  46                 logger('like: no item ' . $item_id);
  47                 return;
  48         }
  49
  50         $item = $r[0];
  51
  52         $owner_uid = $item['uid'];
  53
  54         if(! can_write_wall($a,$owner_uid)) {
  55                 return;
  56         }
  57
  58         $remote_owner = null;
  59
  60         if(! $item['wall']) {
  61                 // The top level post may have been written by somebody on another system
  62                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
  63                         intval($item['contact-id']),
  64                         intval($item['uid'])
  65                 );
  66                 if(! count($r))
  67                         return;
  68                 if(! $r[0]['self'])
  69                         $remote_owner = $r[0];
  70         }
  71
  72         // this represents the post owner on this system.
  73
  74         $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  75                 WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
  76                 intval($owner_uid)
  77         );
  78         if(count($r))
  79                 $owner = $r[0];
  80
  81         if(! $owner) {
  82                 logger('like: no owner');
  83                 return;
  84         }
  85
  86         if(! $remote_owner)
  87                 $remote_owner = $owner;
  88
  89
  90         // This represents the person posting
  91
  92         if((local_user()) && (local_user() == $owner_uid)) {
  93                 $contact = $owner;
  94         }
  95         else {
  96                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
  97                         intval($_SESSION['visitor_id']),
  98                         intval($owner_uid)
  99                 );
 100                 if(count($r))
 101                         $contact = $r[0];
 102         }
 103         if(! $contact) {
 104                 return;
 105         }
 106
 107         $r = q("SELECT `id` FROM `item` WHERE `verb` = '%s' AND `deleted` = 0
 108                 AND `contact-id` = %d AND ( `parent` = '%s' OR `parent-uri` = '%s') LIMIT 1",
 109                 dbesc($activity),
 110                 intval($contact['id']),
 111                 dbesc($item_id),
 112                 dbesc($item_id)
 113         );
 114         if(count($r)) {
 115                 // Already voted, undo it
 116                 $r = q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1",
 117                         dbesc(datetime_convert()),
 118                         intval($r[0]['id'])
 119                 );
 120
 121                 proc_run('php',"include/notifier.php","like","$post_id");
 122                 return;
 123         }
 124
 125         $uri = item_new_uri($a->get_hostname(),$owner_uid);
 126
 127         $post_type = (($item['resource-id']) ? t('photo') : t('status'));
 128         $objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
 129         $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . '" />' . "\n") ;
 130         $body = $item['body'];
 131
 132         $obj = <<< EOT
 133
 134         <object>
 135                 <type>$objtype</type>
 136                 <local>1</local>
 137                 <id>{$item['uri']}</id>
 138                 <link>$link</link>
 139                 <title></title>
 140                 <content>$body</content>
 141         </object>
 142 EOT;
 143         if($verb === 'like')
 144                 $bodyverb = t('%1$s likes %2$s\'s %3$s');
 145         if($verb === 'dislike')
 146                 $bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
 147
 148         if(! isset($bodyverb))
 149                         return;
 150
 151         $arr = array();
 152
 153         $arr['uri'] = $uri;
 154         $arr['uid'] = $owner_uid;
 155         $arr['contact-id'] = $contact['id'];
 156         $arr['type'] = 'activity';
 157         $arr['wall'] = $item['wall'];
 158         $arr['origin'] = 1;
 159         $arr['gravity'] = GRAVITY_LIKE;
 160         $arr['parent'] = $item['id'];
 161         $arr['parent-uri'] = $item['uri'];
 162         $arr['owner-name'] = $remote_owner['name'];
 163         $arr['owner-link'] = $remote_owner['url'];
 164         $arr['owner-avatar'] = $remote_owner['thumb'];
 165         $arr['author-name'] = $contact['name'];
 166         $arr['author-link'] = $contact['url'];
 167         $arr['author-avatar'] = $contact['thumb'];
 168
 169         $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
 170         $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
 171         $plink = '[url=' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
 172         $arr['body'] =  sprintf( $bodyverb, $ulink, $alink, $plink );
 173
 174         $arr['verb'] = $activity;
 175         $arr['object-type'] = $objtype;
 176         $arr['object'] = $obj;
 177         $arr['allow_cid'] = $item['allow_cid'];
 178         $arr['allow_gid'] = $item['allow_gid'];
 179         $arr['deny_cid'] = $item['deny_cid'];
 180         $arr['deny_gid'] = $item['deny_gid'];
 181         $arr['visible'] = 1;
 182         $arr['unseen'] = 1;
 183         $arr['last-child'] = 0;
 184
 185         $post_id = item_store($arr);
 186
 187         if(! $item['visible']) {
 188                 $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
 189                         intval($item['id']),
 190                         intval($owner_uid)
 191                 );
 192         }
 193
 194         $arr['id'] = $post_id;
 195
 196         call_hooks('post_local_end', $arr);
 197
 198         proc_run('php',"include/notifier.php","like","$post_id");
 199
 200         killme();
 201 //      return; // NOTREACHED
 202 }