public static function handleInvoke(Request $request, $targetObject, $function, &$arg)
{
$namedObject = $arg[0];
$source = $namedObject->defaultAdapt()->source;
$operation = $namedObject->defaultAdapt()->operation;
$bodys = $namedObject->defaultAdapt()->body->getBody();
$arguments = array();
foreach ($bodys as $body) {
$arguments[] = $body->defaultAdapt();
}
$arguments = unserialize(str_replace('s:6:"userid";', 's:3:"uid";', serialize($arguments)));
$result = services_method_call($source . "." . $operation, $arguments);
$result = unserialize(str_replace('s:3:"uid";', 's:6:"userid";', serialize($result)));
return $result;
}
public function handle()
{
//A method is required, no matter what
if (empty($this->method_name)) {
return $this->error(JSONRPC_ERROR_REQUEST, t("The received JSON not a valid JSON-RPC Request"));
}
//Find the method
$methods = services_get_all();
$args = array();
foreach ($methods as $method) {
if ($method['#method'] == $this->method_name) {
$this->method = $method;
break;
}
}
if (!isset($this->method)) {
// No method found is a fatal error
return $this->error(JSONRPC_ERROR_PROCEDURE_NOT_FOUND, t("Invalid method @method", array('@method' => $request)));
}
//If needed, check if parameters can be omitted
$arg_count = count($this->method['#args']);
if (!isset($this->params)) {
for ($i = 0; $i < $arg_count; $i++) {
$arg = $this->method['#args'][$i];
if (!$arg['#optional']) {
if (empty($this->in['params'])) {
return $this->error(JSONRPC_ERROR_PARAMS, t("No parameters recieved, the method '@method' has required parameters.", array('@method' => $this->method_name)));
} else {
return $this->error(JSONRPC_ERROR_PARSE, t("Missing parameters, the likely reason is malformed json, the method '@method' has required parameters.", array('@method' => $this->method_name)));
}
}
}
}
// Map parameters to arguments, the 1.1 draft is more generous than the 2.0 proposal when
// it comes to parameter passing. 1.1-d allows mixed positional and named parameters while
// 2.0-p forces the client to choose between the two.
//
// 2.0 proposal on parameters: http://groups.google.com/group/json-rpc/web/json-rpc-1-2-proposal#parameters-positional-and-named
// 1.1 draft on parameters: http://json-rpc.org/wd/JSON-RPC-1-1-WD-20060807.html#NamedPositionalParameters
if ($this->array_is_assoc($this->params)) {
$this->args = array();
//Create a assoc array to look up indexes for parameter names
$arg_dict = array();
for ($i = 0; $i < $arg_count; $i++) {
$arg = $this->method['#args'][$i];
$arg_dict[$arg['#name']] = $i;
}
foreach ($this->params as $key => $value) {
if ($this->major_version == 1 && preg_match('/^\\d+$/', $key)) {
//A positional argument (only allowed in v1.1 calls)
if ($key >= $arg_count) {
//Index outside bounds
return $this->error(JSONRPC_ERROR_PARAMS, t("Positional parameter with a position outside the bounds (index: @index) recieved", array('@index' => $key)));
} else {
$this->args[intval($key)] = $value;
}
} else {
//Associative key
if (!isset($arg_dict[$key])) {
//Unknown parameter
return $this->error(JSONRPC_ERROR_PARAMS, t("Unknown named parameter '@name' recieved", array('@name' => $key)));
} else {
$this->args[$arg_dict[$key]] = $value;
}
}
}
} else {
//Non associative arrays can be mapped directly
$param_count = count($this->params);
if ($param_count > $arg_count) {
return $this->error(JSONRPC_ERROR_PARAMS, t("Too many arguments recieved, the method '@method' only takes '@num' argument(s)", array('@method' => $this->method_name, '@num' => $arg_count)));
}
$this->args = $this->params;
}
//Validate arguments
for ($i = 0; $i < $arg_count; $i++) {
$val = $this->args[$i];
$arg = $this->method['#args'][$i];
if (isset($val)) {
//If we have data
//Only array-type parameters accepts arrays
if (is_array($val) && $arg['#type'] != 'array') {
return $this->error_wrong_type($arg, 'array');
} else {
if (($arg['#type'] == 'int' || $arg['#type'] == 'float') && !is_numeric($val)) {
return $this->error_wrong_type($arg, 'string');
}
}
} else {
if (!$arg['#optional']) {
//Trigger error if a required parameter is missing
return $this->error(JSONRPC_ERROR_PARAMS, t("Argument '@name' is required but was not recieved", array('@name' => $arg['#name'])));
}
}
}
// We are returning JSON, so tell the browser.
drupal_set_header('Content-Type: application/json; charset=utf-8');
//Call service method
try {
$result = services_method_call($this->method['#method'], $this->args);
if (is_array($result) && isset($result['#error']) && $result['#error'] === TRUE) {
return $this->error(JSONRPC_ERROR_INTERNAL_ERROR, $result['#message']);
} else {
return $this->result($result);
}
} catch (Exception $e) {
return $this->error(JSONRPC_ERROR_INTERNAL_ERROR, $e->getMessage());
}
}
