<?php use Friendica\App; use Friendica\Core\System; use Friendica\Core\Worker; use Friendica\Database\DBM; use Friendica\Object\Contact; use Friendica\Protocol\Diaspora; /** * @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': $bodyverb = t('%1$s likes %2$s\'s %3$s'); $activity = ACTIVITY_LIKE; break; case 'unlike': $bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s'); $activity = ACTIVITY_LIKE; break; case 'dislike': case 'undislike': $bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s'); $activity = ACTIVITY_DISLIKE; break; case 'attendyes': case 'unattendyes': $bodyverb = t('%1$s is attending %2$s\'s %3$s'); $activity = ACTIVITY_ATTEND; break; case 'attendno': case 'unattendno': $bodyverb = t('%1$s is not attending %2$s\'s %3$s'); $activity = ACTIVITY_ATTENDNO; break; case 'attendmaybe': case 'unattendmaybe': $bodyverb = t('%1$s may attend %2$s\'s %3$s'); $activity = ACTIVITY_ATTENDMAYBE; break; default: logger('like: unknown verb ' . $verb . ' for item ' . $item_id); return false; } // Enable activity toggling instead of on/off $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE; logger('like: verb ' . $verb . ' item ' . $item_id); // Retrieve item $items = q("SELECT * FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1", dbesc($item_id), dbesc($item_id) ); if (! $item_id || ! DBM::is_result($items)) { logger('like: unknown item ' . $item_id); return false; } $item = $items[0]; if (! can_write_wall($a, $item['uid'])) { logger('like: unable to write on wall ' . $item['uid']); return false; } // Retrieves the local post owner $owners = q("SELECT `contact`.* FROM `contact` WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d", intval($item['uid']) ); if (DBM::is_result($owners)) { $owner_self_contact = $owners[0]; } else { logger('like: unknown owner ' . $item['uid']); return false; } // Retrieve the current logged in user's public contact $author_id = public_contact(); $contacts = q("SELECT * FROM `contact` WHERE `id` = %d", intval($author_id) ); if (DBM::is_result($contacts)) { $author_contact = $contacts[0]; } else { logger('like: unknown author ' . $author_id); return false; } // Contact-id is the uid-dependant author contact if (local_user() == $item['uid']) { $item_contact_id = $owner_self_contact['id']; $item_contact = $owner_self_contact; } else { $item_contact_id = get_contact($author_contact['url'], $item['uid']); $contacts = q("SELECT * FROM `contact` WHERE `id` = %d", intval($item_contact_id) ); if (DBM::is_result($contacts)) { $item_contact = $contacts[0]; } else { logger('like: unknown item contact ' . $item_contact_id); return false; } } // Look for an existing verb row // event participation are essentially radio toggles. If you make a subsequent choice, // we need to eradicate your first choice. if ($event_verb_flag) { $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'"; } else { $verbs = "'".dbesc($activity)."'"; } $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item` WHERE `verb` IN ($verbs) AND `deleted` = 0 AND `author-id` = %d AND `uid` = %d AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s') LIMIT 1", intval($author_contact['id']), intval($item['uid']), dbesc($item_id), dbesc($item_id), dbesc($item['uri']) ); // If it exists, mark it as deleted if (DBM::is_result($existing_like)) { $like_item = $existing_like[0]; // Already voted, undo it q("UPDATE `item` SET `deleted` = 1, `unseen` = 1, `changed` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($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 q("DELETE FROM `sign` WHERE `iid` = %d", intval($like_item['id']) ); $like_item_id = $like_item['id']; Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id); if (!$event_verb_flag || $like_item['verb'] == $activity) { return true; } } // Verb is "un-something", just trying to delete existing entries if (strpos($verb, 'un') === 0) { return true; } // Else or if event verb different from existing row, create a new item row $post_type = (($item['resource-id']) ? t('photo') : t('status')); if ($item['object-type'] === ACTIVITY_OBJ_EVENT) { $post_type = t('event'); } $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ; $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $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; $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]'; $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]'; $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]'; $new_item = array( 'guid' => get_guid(32), 'uri' => item_new_uri($a->get_hostname(), $item['uid']), 'uid' => $item['uid'], 'contact-id' => $item_contact_id, 'type' => 'activity', 'wall' => $item['wall'], 'origin' => 1, 'gravity' => GRAVITY_LIKE, 'parent' => $item['id'], 'parent-uri' => $item['uri'], 'thr-parent' => $item['uri'], 'owner-id' => $item['owner-id'], 'owner-name' => $item['owner-name'], 'owner-link' => $item['owner-link'], 'owner-avatar' => $item['owner-avatar'], 'author-id' => $author_contact['id'], 'author-name' => $author_contact['name'], 'author-link' => $author_contact['url'], 'author-avatar' => $author_contact['thumb'], 'body' => sprintf($bodyverb, $ulink, $alink, $plink), 'verb' => $activity, 'object-type' => $objtype, 'object' => $obj, 'allow_cid' => $item['allow_cid'], 'allow_gid' => $item['allow_gid'], 'deny_cid' => $item['deny_cid'], 'deny_gid' => $item['deny_gid'], 'visible' => 1, 'unseen' => 1, 'last-child' => 0 ); $new_item_id = item_store($new_item); // @todo: Explain this block if (! $item['visible']) { q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d", intval($item['id']), intval($item['uid']) ); } // Save the author information for the like in case we need to relay to Diaspora Diaspora::store_like_signature($item_contact, $new_item_id); $new_item['id'] = $new_item_id; call_hooks('post_local_end', $new_item); Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id); return true; }