/**
* Dispatch class hook and render result
*
* @param string $className
* @param string $hookName
* @param array $body JSON decoded body params
*/
private function dispatchHook($className, $hookName, $body)
{
$verified = false;
if (strpos($hookName, "before") === 0) {
$verified = Client::verifyHookSign("__before_for_{$className}", $body["object"]["__before"]);
} else {
$verified = Client::verifyHookSign("__after_for_{$className}", $body["object"]["__after"]);
}
if (!$verified) {
error_log("Invalid hook sign for {$hookName} {$className}" . " from {$this->env['REMOTE_ADDR']}");
$this->renderError("Unauthorized.", 401, 401);
}
$json = $body["object"];
$json["__type"] = "Object";
$json["className"] = $className;
$obj = Client::decode($json, null);
// set hook marks to prevent infinite loop. For example if user
// invokes `$obj->save` in an afterSave hook, API will not again
// invoke afterSave if we set hook marks.
if (strpos($hookName, "before") === 0) {
if (isset($json["__before"])) {
$obj->set("__before", $json["__before"]);
} else {
$obj->disableBeforeHook();
}
} else {
if (isset($json["__after"])) {
$obj->set("__after", $json["__after"]);
} else {
$obj->disableAfterHook();
}
}
// in beforeUpdate hook, attach updatedKeys to object so user
// can detect changed keys in hook.
if (isset($json["_updatedKeys"])) {
$obj->updatedKeys = $json["_updatedKeys"];
}
$meta["remoteAddress"] = $this->env["REMOTE_ADDR"];
try {
$result = Cloud::runHook($className, $hookName, $obj, User::getCurrentUser(), $meta);
} catch (FunctionError $err) {
$this->renderError($err->getMessage(), $err->getCode());
}
if ($hookName == "beforeDelete") {
$this->renderJSON(array());
} else {
if (strpos($hookName, "after") === 0) {
$this->renderJSON(array("result" => "ok"));
} else {
$outObj = $result;
// Encode result object to type-less literal JSON
$this->renderJSON($outObj->toJSON());
}
}
}
public function testCircularGetCurrentUser()
{
// ensure getCurrentUser neither run indefinetely, nor throw maximum
// function call error
$avatar = File::createWithUrl("alice.png", "https://leancloud.cn/favicon.png");
$user = User::logIn("alice", "blabla");
$user->set("avatar", $avatar);
$user->save();
$token = User::getCurrentSessionToken();
$user->logOut();
User::setCurrentSessionToken($token);
$user2 = User::getCurrentUser();
$this->assertEquals($user2->getUsername(), "alice");
}
