<?php require_once("include/diaspora.php"); /** * @brief add/remove activity to an item * * Toggle activities as like,dislike,attend of an item * * @param string $item_id * @param string $verb * Activity verb. One of * like, unlike, dislike, undislike, attendyes, unattendyes, * attendno, unattendno, attendmaybe, unattendmaybe * @hook 'post_local_end' * array $arr * 'post_id' => ID of posted item */ function do_like($item_id, $verb) { $a = get_app(); if(! local_user() && ! remote_user()) { return false; } switch($verb) { case 'like': case 'unlike': $activity = ACTIVITY_LIKE; break; case 'dislike': case 'undislike': $activity = ACTIVITY_DISLIKE; break; case 'attendyes': case 'unattendyes': $activity = ACTIVITY_ATTEND; break; case 'attendno': case 'unattendno': $activity = ACTIVITY_ATTENDNO; break; case 'attendmaybe': case 'unattendmaybe': $activity = ACTIVITY_ATTENDMAYBE; break; default: return false; break; } logger('like: verb ' . $verb . ' item ' . $item_id); $r = q("SELECT * FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1", dbesc($item_id), dbesc($item_id) ); if(! $item_id || (! count($r))) { logger('like: no item ' . $item_id); return false; } $item = $r[0]; $owner_uid = $item['uid']; if(! can_write_wall($a,$owner_uid)) { return false; } $remote_owner = null; if(! $item['wall']) { // The top level post may have been written by somebody on another system $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($item['contact-id']), intval($item['uid']) ); if(! count($r)) return false; if(! $r[0]['self']) $remote_owner = $r[0]; } // this represents the post owner on this system. $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1", intval($owner_uid) ); if(count($r)) $owner = $r[0]; if(! $owner) { logger('like: no owner'); return false; } if(! $remote_owner) $remote_owner = $owner; // This represents the person posting if((local_user()) && (local_user() == $owner_uid)) { $contact = $owner; } else { $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($_SESSION['visitor_id']), intval($owner_uid) ); if(count($r)) $contact = $r[0]; } if(! $contact) { return false; } $verbs = " '".dbesc($activity)."' "; // event participation are essentially radio toggles. If you make a subsequent choice, // we need to eradicate your first choice. if($activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE) { $verbs = " '" . dbesc(ACTIVITY_ATTEND) . "','" . dbesc(ACTIVITY_ATTENDNO) . "','" . dbesc(ACTIVITY_ATTENDMAYBE) . "' "; } $r = q("SELECT `id`, `guid` FROM `item` WHERE `verb` IN ( $verbs ) AND `deleted` = 0 AND `contact-id` = %d AND `uid` = %d AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s') LIMIT 1", intval($contact['id']), intval($owner_uid), dbesc($item_id), dbesc($item_id), dbesc($item['uri']) ); if(count($r)) { $like_item = $r[0]; // Already voted, undo it $r = q("UPDATE `item` SET `deleted` = 1, `unseen` = 1, `changed` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($like_item['id']) ); // Clean up the Diaspora signatures for this like // Go ahead and do it even if Diaspora support is disabled. We still want to clean up // if it had been enabled in the past $r = q("DELETE FROM `sign` WHERE `iid` = %d", intval($like_item['id']) ); $like_item_id = $like_item['id']; proc_run(PRIORITY_HIGH, "include/notifier.php", "like", $like_item_id); return true; } $uri = item_new_uri($a->get_hostname(),$owner_uid); $post_type = (($item['resource-id']) ? t('photo') : t('status')); if($item['object-type'] === ACTIVITY_OBJ_EVENT) $post_type = t('event'); $objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE ); $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . '" />' . "\n") ; $body = $item['body']; $obj = <<< EOT <object> <type>$objtype</type> <local>1</local> <id>{$item['uri']}</id> <link>$link</link> <title></title> <content>$body</content> </object> EOT; if($verb === 'like') $bodyverb = t('%1$s likes %2$s\'s %3$s'); if($verb === 'dislike') $bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s'); if($verb === 'attendyes') $bodyverb = t('%1$s is attending %2$s\'s %3$s'); if($verb === 'attendno') $bodyverb = t('%1$s is not attending %2$s\'s %3$s'); if($verb === 'attendmaybe') $bodyverb = t('%1$s may attend %2$s\'s %3$s'); if(! isset($bodyverb)) return false; $arr = array(); $arr['guid'] = get_guid(32); $arr['uri'] = $uri; $arr['uid'] = $owner_uid; $arr['contact-id'] = $contact['id']; $arr['type'] = 'activity'; $arr['wall'] = $item['wall']; $arr['origin'] = 1; $arr['gravity'] = GRAVITY_LIKE; $arr['parent'] = $item['id']; $arr['parent-uri'] = $item['uri']; $arr['thr-parent'] = $item['uri']; $arr['owner-name'] = $remote_owner['name']; $arr['owner-link'] = $remote_owner['url']; $arr['owner-avatar'] = $remote_owner['thumb']; $arr['author-name'] = $contact['name']; $arr['author-link'] = $contact['url']; $arr['author-avatar'] = $contact['thumb']; $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]'; $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]'; $plink = '[url=' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]'; $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink ); $arr['verb'] = $activity; $arr['object-type'] = $objtype; $arr['object'] = $obj; $arr['allow_cid'] = $item['allow_cid']; $arr['allow_gid'] = $item['allow_gid']; $arr['deny_cid'] = $item['deny_cid']; $arr['deny_gid'] = $item['deny_gid']; $arr['visible'] = 1; $arr['unseen'] = 1; $arr['last-child'] = 0; $post_id = item_store($arr); if(! $item['visible']) { $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d", intval($item['id']), intval($owner_uid) ); } // Save the author information for the like in case we need to relay to Diaspora diaspora::store_like_signature($contact, $post_id); $arr['id'] = $post_id; call_hooks('post_local_end', $arr); proc_run(PRIORITY_HIGH, "include/notifier.php", "like", $post_id); return true; }