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         $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  59                 WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
  60                 intval($owner_uid)
  61         );
  62         if(count($r))
  63                 $owner = $r[0];
  64
  65         if(! $owner) {
  66                 logger('like: no owner');
  67                 return;
  68         }
  69
  70
  71         if((local_user()) && (local_user() == $owner_uid)) {
  72                 $contact = $owner;
  73         }
  74         else {
  75                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
  76                         intval($_SESSION['visitor_id']),
  77                         intval($owner_uid)
  78                 );
  79                 if(count($r))
  80                         $contact = $r[0];
  81         }
  82         if(! $contact) {
  83                 return;
  84         }
  85
  86         $r = q("SELECT `id` FROM `item` WHERE `verb` = '%s' AND `deleted` = 0
  87                 AND `contact-id` = %d AND ( `parent` = '%s' OR `parent-uri` = '%s') LIMIT 1",
  88                 dbesc($activity),
  89                 intval($contact['id']),
  90                 dbesc($item_id),
  91                 dbesc($item_id)
  92         );
  93         if(count($r)) {
  94                 // Already voted, undo it
  95                 $r = q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1",
  96                         dbesc(datetime_convert()),
  97                         intval($r[0]['id'])
  98                 );
  99
 100                 proc_run('php',"include/notifier.php","like","$post_id");
 101                 return;
 102         }
 103
 104         $uri = item_new_uri($a->get_hostname(),$owner_uid);
 105
 106         $post_type = (($item['resource-id']) ? t('photo') : t('status'));
 107         $objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
 108         $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . '" />' . "\n") ;
 109         $body = $item['body'];
 110
 111         $obj = <<< EOT
 112
 113         <object>
 114                 <type>$objtype</type>
 115                 <local>1</local>
 116                 <id>{$item['uri']}</id>
 117                 <link>$link</link>
 118                 <title></title>
 119                 <content>$body</content>
 120         </object>
 121 EOT;
 122         if($verb === 'like')
 123                 $bodyverb = t('%1$s likes %2$s\'s %3$s');
 124         if($verb === 'dislike')
 125                 $bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
 126
 127         if(! isset($bodyverb))
 128                         return;
 129
 130         $arr = array();
 131
 132         $arr['uri'] = $uri;
 133         $arr['uid'] = $owner_uid;
 134         $arr['contact-id'] = $contact['id'];
 135         $arr['type'] = 'activity';
 136         $arr['wall'] = 1;
 137         $arr['gravity'] = GRAVITY_LIKE;
 138         $arr['parent'] = $item['id'];
 139         $arr['parent-uri'] = $item['uri'];
 140         $arr['owner-name'] = $owner['name'];
 141         $arr['owner-link'] = $owner['url'];
 142         $arr['owner-avatar'] = $owner['thumb'];
 143         $arr['author-name'] = $contact['name'];
 144         $arr['author-link'] = $contact['url'];
 145         $arr['author-avatar'] = $contact['thumb'];
 146
 147         $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
 148         $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
 149         $plink = '[url=' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
 150         $arr['body'] =  sprintf( $bodyverb, $ulink, $alink, $plink );
 151
 152         $arr['verb'] = $activity;
 153         $arr['object-type'] = $objtype;
 154         $arr['object'] = $obj;
 155         $arr['allow_cid'] = $item['allow_cid'];
 156         $arr['allow_gid'] = $item['allow_gid'];
 157         $arr['deny_cid'] = $item['deny_cid'];
 158         $arr['deny_gid'] = $item['deny_gid'];
 159         $arr['visible'] = 1;
 160         $arr['unseen'] = 1;
 161         $arr['last-child'] = 0;
 162
 163         $post_id = item_store($arr);
 164
 165         if(! $item['visible']) {
 166                 $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
 167                         intval($item['id']),
 168                         intval($owner_uid)
 169                 );
 170         }
 171
 172         $arr['id'] = $post_id;
 173
 174         call_hooks('post_local_end', $arr);
 175
 176         proc_run('php',"include/notifier.php","like","$post_id");
 177
 178         return; // NOTREACHED
 179 }