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<?php namespace Comodojo\Xmlrpc; |
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use \Comodojo\Exception\XmlrpcException; |
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use \Exception; |
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/** |
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* XML-RPC decoder |
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* |
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* @package Comodojo Spare Parts |
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* @author Marco Giovinazzi <[email protected]> |
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* @license MIT |
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* |
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* LICENSE: |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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class XmlrpcDecoder { |
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private $is_fault = false; |
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public function __construct() { |
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libxml_use_internal_errors(true); |
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} |
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/** |
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* Decode an xmlrpc response |
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* |
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* @param string $response |
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* |
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* @return array |
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* |
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* @throws \Comodojo\Exception\XmlrpcException |
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*/ |
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public function decodeResponse($response) { |
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$xml_data = simplexml_load_string($response); |
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if ( $xml_data === false ) throw new XmlrpcException("Not a valid XMLRPC response"); |
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$data = array(); |
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try { |
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if ( isset($xml_data->fault) ) { |
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$this->is_fault = true; |
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array_push($data, $this->decodeValue($xml_data->fault->value)); |
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} else if ( isset($xml_data->params) ) { |
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foreach ( $xml_data->params->param as $param ) array_push($data, $this->decodeValue($param->value)); |
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} else throw new XmlrpcException("Uncomprensible response"); |
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} catch (XmlrpcException $xe) { |
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throw $xe; |
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} |
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return isset($data[0]) ? $data[0] : $data; |
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} |
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public function isFault() { |
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return $this->is_fault; |
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} |
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/** |
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* Decode an xmlrpc request. |
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* |
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* Can handle single or multicall requests and return an array of: [method], [data] |
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* |
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* WARNING: in case of multicall, it will not throw any exception for an invalid |
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* boxcarred request; a null value will be placed instead of array(method,params). |
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* |
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* @param string $request |
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* |
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* @return array |
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* |
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* @throws \Comodojo\Exception\XmlrpcException |
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*/ |
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public function decodeCall($request) { |
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$xml_data = simplexml_load_string($request); |
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if ( $xml_data === false ) throw new XmlrpcException("Not a valid XMLRPC call"); |
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if ( !isset($xml_data->methodName) ) throw new XmlrpcException("Uncomprensible request"); |
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$method_name = $this->decodeString($xml_data->methodName[0]); |
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if ( $method_name == "system.multicall" ) { |
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try { |
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$data = $this->multicallDecode($xml_data); |
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} catch (XmlrpcException $xe) { |
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throw $xe; |
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} |
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} else { |
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$parsed = array(); |
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try { |
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foreach ( $xml_data->params->param as $param ) $parsed[] = $this->decodeValue($param->value); |
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} catch (XmlrpcException $xe) { |
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throw $xe; |
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} |
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$data = array($method_name, $parsed); |
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} |
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return $data; |
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} |
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/** |
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* Decode an xmlrpc multicall |
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* |
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* @param string $request |
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* |
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* @return array |
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* |
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* @throws \Comodojo\Exception\XmlrpcException |
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*/ |
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public function decodeMulticall($request) { |
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$xml_data = simplexml_load_string($request); |
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if ( $xml_data === false ) throw new XmlrpcException("Not a valid XMLRPC multicall"); |
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if ( !isset($xml_data->methodName) ) throw new XmlrpcException("Uncomprensible multicall request"); |
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if ( $this->decodeString($xml_data->methodName[0]) != "system.multicall" ) throw new XmlrpcException("Invalid multicall request"); |
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try { |
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$data = $this->multicallDecode($xml_data); |
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} catch (XmlrpcException $xe) { |
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throw $xe; |
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} |
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return $data; |
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} |
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/** |
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* Decode a value from xmlrpc data |
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* |
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* @param mixed $value |
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* |
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* @return mixed |
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* |
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* @throws \Comodojo\Exception\XmlrpcException |
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*/ |
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private function decodeValue($value) { |
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$children = $value->children(); |
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if ( count($children) != 1 ) throw new XmlrpcException("Cannot decode value: invalid value element"); |
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$child = $children[0]; |
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$child_type = $child->getName(); |
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switch ( $child_type ) { |
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case "i4": |
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case "int": |
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$return_value = $this->decodeInt($child); |
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break; |
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case "double": |
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$return_value = $this->decodeDouble($child); |
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break; |
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case "boolean": |
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$return_value = $this->decodeBool($child); |
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break; |
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case "base64": |
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$return_value = $this->decodeBase($child); |
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break; |
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case "dateTime.iso8601": |
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$return_value = $this->decodeIso8601Datetime($child); |
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break; |
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case "string": |
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$return_value = $this->decodeString($child); |
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break; |
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case "array": |
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$return_value = $this->decodeArray($child); |
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break; |
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case "struct": |
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$return_value = $this->decodeStruct($child); |
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break; |
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case "nil": |
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case "ex:nil": |
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$return_value = $this->decodeNil(); |
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break; |
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default: |
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throw new XmlrpcException("Cannot decode value: invalid value type"); |
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break; |
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} |
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return $return_value; |
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} |
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/** |
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* Decode an XML-RPC <base64> element |
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*/ |
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private function decodeBase($base64) { |
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return base64_decode($this->decodeString($base64)); |
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} |
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/** |
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* Decode an XML-RPC <boolean> element |
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*/ |
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private function decodeBool($boolean) { |
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return filter_var($boolean, FILTER_VALIDATE_BOOLEAN); |
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} |
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/** |
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* Decode an XML-RPC <dateTime.iso8601> element |
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*/ |
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private function decodeIso8601Datetime($date_time) { |
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return strtotime($date_time); |
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266
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} |
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/** |
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* Decode an XML-RPC <double> element |
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*/ |
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private function decodeDouble($double) { |
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273
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return (double) ($this->decodeString($double)); |
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} |
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/** |
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* Decode an XML-RPC <int> or <i4> element |
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*/ |
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private function decodeInt($int) { |
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282
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return filter_var($int, FILTER_VALIDATE_INT); |
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284
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} |
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/** |
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* Decode an XML-RPC <string> |
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*/ |
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private function decodeString($string) { |
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291
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return (string) $string; |
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293
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} |
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295
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/** |
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* Decode an XML-RPC <nil/> |
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*/ |
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private function decodeNil() { |
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300
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return null; |
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302
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} |
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304
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/** |
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* Decode an XML-RPC <struct> |
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*/ |
307
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12 |
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private function decodeStruct($struct) { |
308
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309
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12 |
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$return_value = array(); |
310
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311
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12 |
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foreach ( $struct->member as $member ) { |
312
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313
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$name = $member->name.""; |
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$value = $this->decodeValue($member->value); |
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$return_value[$name] = $value; |
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317
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4 |
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} |
318
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319
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return $return_value; |
320
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321
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} |
322
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323
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/** |
324
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* Decode an XML-RPC <array> element |
325
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*/ |
326
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12 |
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private function decodeArray($array) { |
327
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328
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12 |
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$return_value = array(); |
329
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330
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12 |
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foreach ( $array->data->value as $value ) { |
331
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332
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12 |
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$return_value[] = $this->decodeValue($value); |
333
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334
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4 |
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} |
335
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336
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12 |
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return $return_value; |
337
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338
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} |
339
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340
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/** |
341
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* Decode an XML-RPC multicall request (internal) |
342
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* @param \SimpleXMLElement $xml_data |
343
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*/ |
344
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6 |
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private function multicallDecode($xml_data) { |
345
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346
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6 |
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$data = array(); |
347
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348
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try { |
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350
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6 |
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$calls = $xml_data->params->param->value->children(); |
351
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352
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6 |
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$calls_array = $this->decodeArray($calls[0]); |
353
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354
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6 |
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foreach ( $calls_array as $call ) { |
355
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356
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6 |
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$data[] = (!isset($call['methodName']) || !isset($call['params'])) ? null : array($call['methodName'], $call['params']); |
357
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358
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2 |
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} |
359
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360
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2 |
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} catch (XmlrpcException $xe) { |
361
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362
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throw $xe; |
363
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364
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} |
365
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366
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6 |
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return $data; |
367
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368
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} |
369
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370
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} |
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This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.