diff --git a/src/Model/Item.php b/src/Model/Item.php
index 98ffd89ff1..7545375181 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -6,28 +6,32 @@
namespace Friendica\Model;
+use Friendica\BaseObject;
use Friendica\Core\Addon;
use Friendica\Core\Config;
+use Friendica\Core\L10n;
use Friendica\Core\PConfig;
-use Friendica\Core\Worker;
use Friendica\Core\System;
+use Friendica\Core\Worker;
+use Friendica\Database\DBM;
use Friendica\Model\Contact;
use Friendica\Model\Conversation;
use Friendica\Model\GContact;
use Friendica\Model\Group;
use Friendica\Model\Term;
-use Friendica\Model\User;
-use Friendica\Database\DBM;
+use Friendica\Object\Image;
+use Friendica\Protocol\Diaspora;
use Friendica\Protocol\OStatus;
use dba;
use Text_LanguageDetect;
+require_once 'boot.php';
require_once 'include/tags.php';
require_once 'include/threads.php';
require_once 'include/items.php';
require_once 'include/text.php';
-class Item
+class Item extends BaseObject
{
/**
* @brief Update existing item entries
@@ -1642,4 +1646,230 @@ class Item
}
return false;
}
+
+ /**
+ * @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 $arr
+ * 'post_id' => ID of posted item
+ */
+ public static function performLike($item_id, $verb)
+ {
+ if (!local_user() && !remote_user()) {
+ return false;
+ }
+
+ switch ($verb) {
+ case 'like':
+ case 'unlike':
+ $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
+ $activity = ACTIVITY_LIKE;
+ break;
+ case 'dislike':
+ case 'undislike':
+ $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
+ $activity = ACTIVITY_DISLIKE;
+ break;
+ case 'attendyes':
+ case 'unattendyes':
+ $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
+ $activity = ACTIVITY_ATTEND;
+ break;
+ case 'attendno':
+ case 'unattendno':
+ $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
+ $activity = ACTIVITY_ATTENDNO;
+ break;
+ case 'attendmaybe':
+ case 'unattendmaybe':
+ $bodyverb = L10n::t('%1$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);
+
+ $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
+ if (!DBM::is_result($item)) {
+ logger('like: unknown item ' . $item_id);
+ return false;
+ }
+
+ $uid = $item['uid'];
+ if (($uid == 0) && local_user()) {
+ $uid = local_user();
+ }
+
+ if (!can_write_wall($uid)) {
+ logger('like: unable to write on wall ' . $uid);
+ return false;
+ }
+
+ // Retrieves the local post owner
+ $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
+ if (!DBM::is_result($owner_self_contact)) {
+ logger('like: unknown owner ' . $uid);
+ return false;
+ }
+
+ // Retrieve the current logged in user's public contact
+ $author_id = public_contact();
+
+ $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
+ if (!DBM::is_result($author_contact)) {
+ logger('like: unknown author ' . $author_id);
+ return false;
+ }
+
+ // Contact-id is the uid-dependant author contact
+ if (local_user() == $uid) {
+ $item_contact_id = $owner_self_contact['id'];
+ $item_contact = $owner_self_contact;
+ } else {
+ $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid);
+ $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
+ if (!DBM::is_result($item_contact)) {
+ 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
+ $fields = ['deleted' => true, 'unseen' => true, 'changed' => datetime_convert()];
+ dba::update('item', $fields, ['id' => $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
+ dba::delete('sign', ['iid' => $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']) ? L10n::t('photo') : L10n::t('status'));
+ if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
+ $post_type = L10n::t('event');
+ }
+ $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
+ $link = xmlify('' . "\n") ;
+ $body = $item['body'];
+
+ $obj = <<< EOT
+
+
+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 = [
+ 'guid' => get_guid(32),
+ 'uri' => item_new_uri(self::getApp()->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,
+ ];
+
+ $new_item_id = Item::insert($new_item);
+
+ // @todo: Explain this block
+ if (! $item['visible']) {
+ q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d",
+ intval($item['id'])
+ );
+ }
+
+ // Save the author information for the like in case we need to relay to Diaspora
+ Diaspora::storeLikeSignature($item_contact, $new_item_id);
+
+ $new_item['id'] = $new_item_id;
+
+ Addon::callHooks('post_local_end', $new_item);
+
+ Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
+
+ return true;
+ }
}