/**
* validates all options that have been defined throwing rpc gateway faults if any of the
* options fail to validate. see constant descriptions for what each constant does
*
* @error 14015
* @param string $option expects the option name
* @param null|mixed $value expects the options value
* @throws Xapp_Rpc_Gateway_Exception
* @throws Xapp_Rpc_Fault
*/
protected function validate($option, $value = null)
{
$user = null;
$option = strtoupper($option);
switch ($option) {
case self::BASIC_AUTH:
if ($this->request()->has('PHP_AUTH_USER', 'SERVER') && $this->request()->has('PHP_AUTH_PW', 'SERVER') && isset($value[0]) && isset($value[1])) {
if ($this->server()->request()->getFrom('PHP_AUTH_USER', 'SERVER') !== $value[0] || $this->server()->request()->getFrom('PHP_AUTH_PW', 'SERVER') !== $value[1]) {
Xapp_Rpc_Fault::t("basic auth error - user or password not correct", array(1401501, -32001));
}
} else {
Xapp_Rpc_Fault::t("basic auth error - credentials not set", array(1401502, -32002));
}
break;
case self::ALLOW_IP:
if (Xapp_Rpc_Request::getClientIp() !== null && !in_array(Xapp_Rpc_Request::getClientIp(), $value)) {
Xapp_Rpc_Fault::t("request denied from service", array(1401503, -32003));
}
break;
case self::DENY_IP:
if (Xapp_Rpc_Request::getClientIp() !== null && in_array(Xapp_Rpc_Request::getClientIp(), $value)) {
Xapp_Rpc_Fault::t("request denied from service", array(1401503, -32003));
}
break;
case self::DISABLE:
if ((bool) $value) {
Xapp_Rpc_Fault::t("gateway is disabled", array(1401504, -32004));
}
break;
case self::DISABLE_SERVICE:
if ($this->server()->hasServices()) {
foreach ($this->server()->getServices() as $service) {
if (preg_match(Xapp_Rpc::regex($value), $service)) {
Xapp_Rpc_Fault::t("requested service: {$service} is disabled", array(1401505, -32005));
}
}
}
break;
case self::ALLOW_HOST:
if (Xapp_Rpc_Request::getHost() !== null && !in_array(Xapp_Rpc_Request::getHost(), $value)) {
Xapp_Rpc_Fault::t("host denied from service", array(1401506, -32006));
}
break;
case self::DENY_HOST:
if (Xapp_Rpc_Request::getHost() !== null && in_array(Xapp_Rpc_Request::getHost(), $value)) {
Xapp_Rpc_Fault::t("host denied from service", array(1401506, -32006));
}
break;
case self::FORCE_HTTPS:
if ((bool) $value && Xapp_Rpc_Request::getScheme() !== 'HTTPS') {
Xapp_Rpc_Fault::t("request from none http secure host denied", array(1401507, -32007));
}
break;
case self::ALLOW_USER_AGENT:
if ($this->request()->has('HTTP_USER_AGENT', 'SERVER') && !preg_match('/(' . implode('|', trim($value, '()')) . ')/i', $this->request()->getFrom('HTTP_USER_AGENT', 'SERVER'))) {
Xapp_Rpc_Fault::t("client denied from service", array(1401508, -32008));
}
break;
case self::DENY_USER_AGENT:
if ($this->request()->has('HTTP_USER_AGENT', 'SERVER') && preg_match('/(' . implode('|', trim($value, '()')) . ')/i', $this->request()->getFrom('HTTP_USER_AGENT', 'SERVER'))) {
Xapp_Rpc_Fault::t("client denied from service", array(1401508, -32008));
}
break;
case self::ALLOW_REFERER:
if (Xapp_Rpc_Request::getReferer() !== null && !preg_match('/(' . implode('|', trim($value, '()')) . ')/i', Xapp_Rpc_Request::getReferer())) {
Xapp_Rpc_Fault::t("referer denied from service", array(1401509, -32009));
}
break;
case self::SIGNED_REQUEST:
if ((bool) $value) {
$tmp = array();
if (xapp_is_option(self::SIGNED_REQUEST_EXCLUDES, $this)) {
foreach ($this->server()->getServices() as $service) {
if (!preg_match(Xapp_Rpc::regex(xapp_get_option(self::SIGNED_REQUEST_EXCLUDES, $this)), $service)) {
$tmp[] = $service;
}
}
}
if (sizeof($tmp) > 0) {
$sign = $this->request()->getParam(xapp_get_option(self::SIGNED_REQUEST_SIGN_PARAM, $this), false);
$method = strtolower(xapp_get_option(self::SIGNED_REQUEST_METHOD, $this));
switch ($method) {
case 'host':
$user = $this->request()->getHost();
break;
case 'ip':
$user = $this->request()->getClientIp();
break;
case 'user':
$user = $this->request()->getParam(xapp_get_option(self::SIGNED_REQUEST_USER_PARAM, $this), false);
break;
default:
throw new Xapp_Rpc_Gateway_Exception(_("unsupported signed request user identification method"), 1401514);
}
if ($user === false || $user === null) {
Xapp_Rpc_Fault::t(vsprintf("signed request value for: %s not found in request", array(xapp_get_option(self::SIGNED_REQUEST_USER_PARAM, $this))), array(1401512, -32011));
}
if ($sign === false || $sign === null) {
Xapp_Rpc_Fault::t(vsprintf("signed request value for: %s not found in request", array(xapp_get_option(self::SIGNED_REQUEST_SIGN_PARAM, $this))), array(1401513, -32011));
}
$key = $this->getKey($user, null);
$params = $this->request()->getParams();
if (array_key_exists('xdmTarget', $params)) {
unset($params['xdmTarget']);
}
if (array_key_exists('view', $params)) {
unset($params['view']);
}
if (array_key_exists('xfToken', $params)) {
unset($params['xfToken']);
}
if (array_key_exists('time', $params)) {
unset($params['time']);
}
if (array_key_exists('xdm_e', $params)) {
unset($params['xdm_e']);
}
if (array_key_exists('user', $params)) {
unset($params['user']);
}
if (array_key_exists('xdm_c', $params)) {
unset($params['xdm_c']);
}
if (array_key_exists('xdm_p', $params)) {
unset($params['xdm_p']);
}
if (xapp_is_option(self::SIGNED_REQUEST_CALLBACK, $this)) {
if (!(bool) call_user_func_array(xapp_get_option(self::SIGNED_REQUEST_CALLBACK, $this), array($this->request(), $params, $key))) {
Xapp_Rpc_Fault::t("verifying signed request failed", array(1401510, -32010));
}
} else {
if ($key !== null) {
if (isset($params[xapp_get_option(self::SIGNED_REQUEST_SIGN_PARAM, $this)])) {
unset($params[xapp_get_option(self::SIGNED_REQUEST_SIGN_PARAM, $this)]);
}
if ($sign !== self::sign($params, $key)) {
Xapp_Rpc_Fault::t("verifying signed request failed", array(1401510, -32010));
}
} else {
throw new Xapp_Rpc_Gateway_Exception(_("user identification key must be set when using internal signed request verification"), 1401511);
}
}
}
}
break;
default:
}
}
/**
* invoke class/method or function via rpc or outside rpc functionality for testing purposes. the first parameter
* thus can be a valid callable when used outside of rpc service or the internal array containing all call parameters
* from concrete rpc server implementation. throws exception with extended exception properties if in debug mode.
* summarizes all caught applications exceptions when invoking callable to a general application error so sensitive
* error messages can be omitted. when invoked with named parameters will reorder parameters to reflect
* order of method/function call since call_user_func_array needs to pass parameter named or unnamed in
* correct order
*
* @error 14211
* @param array|callable $call expects either valid callable or array with all call parameters
* @param array $params expects the parameters to pass to function/method to invoke
* @return mixed
* @throws Xapp_Rpc_Server_Exception
* @throws Xapp_Rpc_Fault
* @throws Exception
*/
public function invoke($call, $params = null)
{
$key = null;
$hash = null;
$class = null;
$return = null;
$result = null;
$callable = null;
try {
//invoke from outside of rpc service
if (is_callable($call)) {
$callable = $call;
if (is_array($call)) {
$call = array(null, $call[1], is_object($call[0]) ? get_class($call[0]) : $call[0]);
$class = new ReflectionClass($call[2]);
} else {
if (strpos((string) $call, '::') !== false) {
$call = array(null, substr($call, strpos($call, '::') + 2), substr($call, 0, strpos($call, '::')));
$class = new ReflectionClass($call[2]);
} else {
$call = array(null, $call, $call);
$class = null;
}
}
} else {
if (is_array($call)) {
if ($call[2] !== null) {
if (xapp_get_option(self::NAMESPACE_IDENTIFIER, $this) === NAMESPACE_SEPARATOR) {
if (strpos($call[2], NAMESPACE_SEPARATOR) !== false) {
$call[2] = NAMESPACE_SEPARATOR . str_replace(array('\\', '/', '_', '.'), xapp_get_option(self::NAMESPACE_IDENTIFIER, $this), trim($call[2], ' ' . NAMESPACE_SEPARATOR));
} else {
$call[2] = str_replace(array('/', '_', '.'), xapp_get_option(self::NAMESPACE_IDENTIFIER, $this), trim($call[2]));
}
} else {
$call[2] = str_replace(array('\\', '/', '_', '.'), xapp_get_option(self::NAMESPACE_IDENTIFIER, $this), trim($call[2]));
}
$key = "{$call[2]}.{$call[1]}";
try {
if (array_key_exists(strtolower($call[2]), $this->_objects)) {
$class = new ReflectionClass($this->_objects[strtolower($call[2])]);
} else {
$class = new ReflectionClass($call[2]);
}
if ($class->hasMethod($call[1])) {
$method = $class->getMethod($call[1]);
if ($method->isPublic()) {
if ($method->isStatic()) {
$callable = array($class->getName(), $call[1]);
} else {
$callable = array(array_key_exists(strtolower($call[2]), $this->_objects) ? $this->_objects[strtolower($call[2])] : $class->newInstance(), $call[1]);
}
} else {
Xapp_Rpc_Fault::t("method: {$call[1]} of class: {$call[2]} is not public", array(1421105, -32601));
}
} else {
Xapp_Rpc_Fault::t("method: {$call[1]} of class: {$call[2]} does not exist", array(1421104, -32601));
}
} catch (ReflectionException $e) {
throw new Xapp_Rpc_Server_Exception(xapp_sprintf(_("unable to initialize class due to reflection error: %d, %s"), $e->getCode(), $e->getMessage()), 1421103);
}
} else {
$key = $call[1];
$callable = $call[1];
}
} else {
throw new Xapp_Rpc_Server_Exception(_("invalid callable passed to invoke method"), 1421106);
}
}
if (is_callable($callable)) {
if (is_array($callable) && is_object($callable[0])) {
$this->_class = $callable[0];
}
if (!is_null($key) && !is_null($params) && array_values((array) $params) !== (array) $params) {
$tmp = array();
$arr = (array) $params;
$map = $this->smd()->get($key);
if (!is_null($map)) {
foreach ((array) $map->parameters as $p) {
if (array_key_exists($p->name, $arr)) {
$tmp[$p->name] = $arr[$p->name];
}
}
}
$params = $tmp;
$tmp = null;
$arr = null;
$map = null;
}
if (!is_null($key) && xapp_is_option(self::CACHE, $this) && preg_match(Xapp_Rpc::regex(xapp_get_option(self::CACHE_SERVICES, $this)), $call[0])) {
if (xapp_get_option(self::CACHE_BY_TRANSACTION_ID, $this)) {
$hash = $call[3]['id'];
} else {
$hash = Xapp_Cache::hash(serialize($call[0]) . serialize($params));
}
if (xapp_get_option(self::CACHE, $this)->has($hash)) {
return xapp_get_option(self::CACHE, $this)->get($hash);
}
}
if (!xapp_get_option(self::PARAMS_AS_ARRAY, $this)) {
$params = xapp_array_to_object($params);
}
xapp_event('xapp.rpc.server.beforeCall', array($this, array(&$result, $call[1], $call[2], $params)));
if ($this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$return = $this->getClass()->onBeforeCall($this, array(&$result, $call[1], $call[2], &$params));
}
if ($return !== false && $result === null) {
$this->response()->result($result = call_user_func_array($callable, (array) $params));
}
if ($return === false && $this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$return = $this->getClass()->onAbort($this, array(&$result, $call[1], $call[2], &$params));
} else {
$return = null;
}
if ($return !== null) {
$result = $return;
}
if ($this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$return = $this->getClass()->onAfterCall($this, array(&$result));
}
if ($return !== null) {
$result = $return;
}
xapp_event('xapp.rpc.server.afterCall', array($this, array(&$result)));
if (!is_null($hash)) {
if (!xapp_get_option(self::CACHE, $this)->has($hash)) {
xapp_get_option(self::CACHE, $this)->set($hash, $result);
}
}
$callable = null;
$return = null;
$params = null;
$class = null;
$hash = null;
return $result;
} else {
throw new Xapp_Rpc_Server_Exception(_("unable to invoke function since first argument is not a callable"), 1421102);
}
} catch (Exception $e) {
if ($this->hasClass() && $class->implementsInterface('Xapp_Rpc_Interface_Callable')) {
$error = $this->getClass()->onError($this, $e);
if ($error instanceof Exception) {
$e = $error;
$error = null;
}
}
if (!$e instanceof Xapp_Rpc_Server_Exception) {
$data = array();
$debug = xapp_get_option(self::DEBUG, $this);
if (is_bool($debug) && $debug === true || is_int($debug) && $debug === 1) {
$data['message'] = $e->getMessage();
$data['code'] = $e->getCode();
$data['class'] = get_class($e);
$data['file'] = $e->getFile();
$data['line'] = $e->getLine();
if ($e instanceof ErrorException) {
$data['severity'] = $e->getSeverity();
}
if ($e instanceof Xapp_Rpc_Fault && $e->hasData()) {
$data['data'] = $e->getData();
}
} else {
if (is_int($debug) && $debug === 2) {
$data['message'] = $e->getMessage();
$data['code'] = $e->getCode();
if ($e instanceof ErrorException) {
$data['severity'] = $e->getSeverity();
}
if ($e instanceof Xapp_Rpc_Fault && $e->hasData()) {
$data['data'] = $e->getData();
}
}
}
if (xapp_is_option(self::APPLICATION_ERROR, $this)) {
if ($e instanceof Xapp_Rpc_Fault && $e->hasFault()) {
$f = $e->getFault();
} else {
$f = -32500;
}
if (($code = (int) $e->getCode()) !== 0) {
Xapp_Rpc_Fault::t(xapp_sprintf("application error: %d", array($code)), array(1421101, $f), XAPP_ERROR_IGNORE, $data);
} else {
Xapp_Rpc_Fault::t("application error", array(1421101, $f), XAPP_ERROR_IGNORE, $data);
}
} else {
if ((bool) $debug) {
Xapp_Rpc_Fault::t($e->getMessage(), $e->getCode(), XAPP_ERROR_IGNORE, $data);
} else {
throw $e;
}
}
} else {
throw $e;
}
}
return null;
}