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