X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=php%2Fphpxmlrpc%2Fsrc%2FEncoder.php;h=7ad2adb06d098d0086e062d2bddcb287132ca6f6;hb=c379c0fff5edc592cc5d5d647c7fadb91317db87;hp=dfec15d3eb21c0fffddbfaa6be9d98545975a102;hpb=ae8b10f8363f7a1df02e77cbd820904c4ded10b8;p=plcapi.git diff --git a/php/phpxmlrpc/src/Encoder.php b/php/phpxmlrpc/src/Encoder.php index dfec15d..7ad2adb 100644 --- a/php/phpxmlrpc/src/Encoder.php +++ b/php/phpxmlrpc/src/Encoder.php @@ -2,32 +2,63 @@ namespace PhpXmlRpc; +use PhpXmlRpc\Helper\Logger; use PhpXmlRpc\Helper\XMLParser; /** * A helper class to easily convert between Value objects and php native values + * @todo implement an interface + * @todo add class constants for the options values */ class Encoder { + protected static $logger; + protected static $parser; + + public function getLogger() + { + if (self::$logger === null) { + self::$logger = Logger::instance(); + } + return self::$logger; + } + + public static function setLogger($logger) + { + self::$logger = $logger; + } + + public function getParser() + { + if (self::$parser === null) { + self::$parser = new XMLParser(); + } + return self::$parser; + } + + public static function setParser($parser) + { + self::$parser = $parser; + } + /** * Takes an xmlrpc value in object format and translates it into native PHP types. * * Works with xmlrpc requests objects as input, too. * - * Given proper options parameter, can rebuild generic php object instances - * (provided those have been encoded to xmlrpc format using a corresponding - * option in php_xmlrpc_encode()) + * Given proper options parameter, can rebuild generic php object instances (provided those have been encoded to + * xmlrpc format using a corresponding option in php_xmlrpc_encode()) * PLEASE NOTE that rebuilding php objects involves calling their constructor function. - * This means that the remote communication end can decide which php code will - * get executed on your server, leaving the door possibly open to 'php-injection' - * style of attacks (provided you have some classes defined on your server that - * might wreak havoc if instances are built outside an appropriate context). - * Make sure you trust the remote server/client before eanbling this! + * This means that the remote communication end can decide which php code will get executed on your server, leaving + * the door possibly open to 'php-injection' style of attacks (provided you have some classes defined on your server + * that might wreak havoc if instances are built outside an appropriate context). + * Make sure you trust the remote server/client before enabling this! * * @author Dan Libby (dan@libby.com) * * @param Value|Request $xmlrpcVal - * @param array $options if 'decode_php_objs' is set in the options array, xmlrpc structs can be decoded into php objects; if 'dates_as_objects' is set xmlrpc datetimes are decoded as php DateTime objects (standard is + * @param array $options if 'decode_php_objs' is set in the options array, xmlrpc structs can be decoded into php + * objects; if 'dates_as_objects' is set xmlrpc datetimes are decoded as php DateTime objects * * @return mixed */ @@ -36,28 +67,38 @@ class Encoder switch ($xmlrpcVal->kindOf()) { case 'scalar': if (in_array('extension_api', $options)) { - reset($xmlrpcVal->me); - list($typ, $val) = each($xmlrpcVal->me); + $val = reset($xmlrpcVal->me); + $typ = key($xmlrpcVal->me); switch ($typ) { case 'dateTime.iso8601': - $xmlrpcVal->scalar = $val; - $xmlrpcVal->type = 'datetime'; - $xmlrpcVal->timestamp = \PhpXmlRpc\Helper\Date::iso8601Decode($val); - - return $xmlrpcVal; + $xmlrpcVal = array( + 'xmlrpc_type' => 'datetime', + 'scalar' => $val, + 'timestamp' => \PhpXmlRpc\Helper\Date::iso8601Decode($val) + ); + return (object)$xmlrpcVal; case 'base64': - $xmlrpcVal->scalar = $val; - $xmlrpcVal->type = $typ; - - return $xmlrpcVal; + $xmlrpcVal = array( + 'xmlrpc_type' => 'base64', + 'scalar' => $val + ); + return (object)$xmlrpcVal; + case 'string': + if (isset($options['extension_api_encoding'])) { + $dval = @iconv('UTF-8', $options['extension_api_encoding'], $val); + if ($dval !== false) { + return $dval; + } + } + //return $val; + // break through voluntarily default: - return $xmlrpcVal->scalarval(); + return $val; } } if (in_array('dates_as_objects', $options) && $xmlrpcVal->scalartyp() == 'dateTime.iso8601') { - // we return a Datetime object instead of a string - // since now the constructor of xmlrpc value accepts safely strings, ints and datetimes, - // we cater to all 3 cases here + // we return a Datetime object instead of a string since now the constructor of xmlrpc value accepts + // safely strings, ints and datetimes, we cater to all 3 cases here $out = $xmlrpcVal->scalarval(); if (is_string($out)) { $out = strtotime($out); @@ -71,20 +112,20 @@ class Encoder return $out; } } - return $xmlrpcVal->scalarval(); + case 'array': $arr = array(); foreach($xmlrpcVal as $value) { $arr[] = $this->decode($value, $options); } - return $arr; + case 'struct': // If user said so, try to rebuild php objects for specific struct vals. /// @todo should we raise a warning for class not found? - // shall we check for proper subclass of xmlrpc value instead of - // presence of _php_class to detect what we can do? + // shall we check for proper subclass of xmlrpc value instead of presence of _php_class to detect + // what we can do? if (in_array('decode_php_objs', $options) && $xmlrpcVal->_php_class != '' && class_exists($xmlrpcVal->_php_class) ) { @@ -92,24 +133,24 @@ class Encoder foreach ($xmlrpcVal as $key => $value) { $obj->$key = $this->decode($value, $options); } - return $obj; } else { $arr = array(); foreach ($xmlrpcVal as $key => $value) { $arr[$key] = $this->decode($value, $options); } - return $arr; } + case 'msg': $paramCount = $xmlrpcVal->getNumParams(); $arr = array(); for ($i = 0; $i < $paramCount; $i++) { $arr[] = $this->decode($xmlrpcVal->getParam($i), $options); } - return $arr; + + /// @todo throw on unsupported type } } @@ -120,22 +161,22 @@ class Encoder * Feature creep -- could support more types via optional type argument * (string => datetime support has been added, ??? => base64 not yet) * - * If given a proper options parameter, php object instances will be encoded - * into 'special' xmlrpc values, that can later be decoded into php objects - * by calling php_xmlrpc_decode() with a corresponding option + * If given a proper options parameter, php object instances will be encoded into 'special' xmlrpc values, that can + * later be decoded into php objects by calling php_xmlrpc_decode() with a corresponding option * * @author Dan Libby (dan@libby.com) * * @param mixed $phpVal the value to be converted into an xmlrpc value object * @param array $options can include 'encode_php_objs', 'auto_dates', 'null_extension' or 'extension_api' * - * @return \PhpXmlrpc\Value + * @return Value */ public function encode($phpVal, $options = array()) { $type = gettype($phpVal); switch ($type) { case 'string': + /// @todo should we be stricter in the accepted dates (ie. reject more of invalid days & times)? if (in_array('auto_dates', $options) && preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $phpVal)) { $xmlrpcVal = new Value($phpVal, Value::$xmlrpcDateTime); } else { @@ -148,15 +189,13 @@ class Encoder case 'double': $xmlrpcVal = new Value($phpVal, Value::$xmlrpcDouble); break; - // // Add support for encoding/decoding of booleans, since they are supported in PHP case 'boolean': $xmlrpcVal = new Value($phpVal, Value::$xmlrpcBoolean); break; - // case 'array': - // PHP arrays can be encoded to either xmlrpc structs or arrays, - // depending on wheter they are hashes or plain 0..n integer indexed + // PHP arrays can be encoded to either xmlrpc structs or arrays, depending on whether they are hashes + // or plain 0..n integer indexed // A shorter one-liner would be // $tmp = array_diff(array_keys($phpVal), range(0, count($phpVal)-1)); // but execution time skyrockets! @@ -180,11 +219,27 @@ class Encoder if (is_a($phpVal, 'PhpXmlRpc\Value')) { $xmlrpcVal = $phpVal; } elseif (is_a($phpVal, 'DateTimeInterface')) { - $xmlrpcVal = new Value($phpVal->format('Ymd\TH:i:s'), Value::$xmlrpcStruct); + $xmlrpcVal = new Value($phpVal->format('Ymd\TH:i:s'), Value::$xmlrpcDateTime); + } elseif (in_array('extension_api', $options) && $phpVal instanceof \stdClass && isset($phpVal->xmlrpc_type)) { + // Handle the 'pre-converted' base64 and datetime values + if (isset($phpVal->scalar)) { + switch ($phpVal->xmlrpc_type) { + case 'base64': + $xmlrpcVal = new Value($phpVal->scalar, Value::$xmlrpcBase64); + break; + case 'datetime': + $xmlrpcVal = new Value($phpVal->scalar, Value::$xmlrpcDateTime); + break; + default: + $xmlrpcVal = new Value(); + } + } else { + $xmlrpcVal = new Value(); + } + } else { $arr = array(); - reset($phpVal); - while (list($k, $v) = each($phpVal)) { + foreach($phpVal as $k => $v) { $arr[$k] = $this->encode($v, $options); } $xmlrpcVal = new Value($arr, Value::$xmlrpcStruct); @@ -210,11 +265,11 @@ class Encoder } else { $xmlrpcVal = new Value(); } + break; // catch "user function", "unknown type" default: // giancarlo pinerolo - // it has to return - // an empty object in case, not a boolean. + // it has to return an empty object in case, not a boolean. $xmlrpcVal = new Value(); break; } @@ -226,10 +281,13 @@ class Encoder * Convert the xml representation of a method response, method request or single * xmlrpc value into the appropriate object (a.k.a. deserialize). * + * @todo is this a good name/class for this method? It does something quite different from 'decode' after all + * (returning objects vs returns plain php values)... In fact it belongs rather to a Parser class + * * @param string $xmlVal * @param array $options * - * @return mixed false on error, or an instance of either Value, Request or Response + * @return Value|Request|Response|false false on error, or an instance of either Value, Request or Response */ public function decodeXml($xmlVal, $options = array()) { @@ -237,10 +295,12 @@ class Encoder $valEncoding = XMLParser::guessEncoding('', $xmlVal); if ($valEncoding != '') { - // Since parsing will fail if charset is not specified in the xml prologue, - // the encoding is not UTF8 and there are non-ascii chars in the text, we try to work round that... - // The following code might be better for mb_string enabled installs, but - // makes the lib about 200% slower... + // Since parsing will fail if + // - charset is not specified in the xml prologue, + // - the encoding is not UTF8 and + // - there are non-ascii chars in the text, + // we try to work round that... + // The following code might be better for mb_string enabled installs, but makes the lib about 200% slower... //if (!is_valid_charset($valEncoding, array('UTF-8')) if (!in_array($valEncoding, array('UTF-8', 'US-ASCII')) && !XMLParser::hasEncoding($xmlVal)) { if ($valEncoding == 'ISO-8859-1') { @@ -249,69 +309,74 @@ class Encoder if (extension_loaded('mbstring')) { $xmlVal = mb_convert_encoding($xmlVal, 'UTF-8', $valEncoding); } else { - error_log('XML-RPC: ' . __METHOD__ . ': invalid charset encoding of xml text: ' . $valEncoding); + $this->getLogger()->errorLog('XML-RPC: ' . __METHOD__ . ': invalid charset encoding of xml text: ' . $valEncoding); } } } } - $parser = xml_parser_create(); - xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true); - // What if internal encoding is not in one of the 3 allowed? - // we use the broadest one, ie. utf8! + // What if internal encoding is not in one of the 3 allowed? We use the broadest one, ie. utf8! if (!in_array(PhpXmlRpc::$xmlrpc_internalencoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII'))) { - xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8'); + /// @todo emit a warning + $parserOptions = array(XML_OPTION_TARGET_ENCODING => 'UTF-8'); } else { - xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, PhpXmlRpc::$xmlrpc_internalencoding); + $parserOptions = array(XML_OPTION_TARGET_ENCODING => PhpXmlRpc::$xmlrpc_internalencoding); } - $xmlRpcParser = new XMLParser(); - xml_set_object($parser, $xmlRpcParser); - - xml_set_element_handler($parser, 'xmlrpc_se_any', 'xmlrpc_ee'); - xml_set_character_data_handler($parser, 'xmlrpc_cd'); - xml_set_default_handler($parser, 'xmlrpc_dh'); - if (!xml_parse($parser, $xmlVal, 1)) { - $errstr = sprintf('XML error: %s at line %d, column %d', - xml_error_string(xml_get_error_code($parser)), - xml_get_current_line_number($parser), xml_get_current_column_number($parser)); - error_log($errstr); - xml_parser_free($parser); + $xmlRpcParser = $this->getParser(); + $xmlRpcParser->parse( + $xmlVal, + XMLParser::RETURN_XMLRPCVALS, + XMLParser::ACCEPT_REQUEST | XMLParser::ACCEPT_RESPONSE | XMLParser::ACCEPT_VALUE | XMLParser::ACCEPT_FAULT, + $parserOptions + ); - return false; - } - xml_parser_free($parser); if ($xmlRpcParser->_xh['isf'] > 1) { // test that $xmlrpc->_xh['value'] is an obj, too??? - error_log($xmlRpcParser->_xh['isf_reason']); + $this->getLogger()->errorLog($xmlRpcParser->_xh['isf_reason']); return false; } + switch ($xmlRpcParser->_xh['rt']) { case 'methodresponse': - $v = &$xmlRpcParser->_xh['value']; + $v = $xmlRpcParser->_xh['value']; if ($xmlRpcParser->_xh['isf'] == 1) { + /** @var Value $vc */ $vc = $v['faultCode']; + /** @var Value $vs */ $vs = $v['faultString']; $r = new Response(0, $vc->scalarval(), $vs->scalarval()); } else { $r = new Response($v); } - return $r; + case 'methodcall': $req = new Request($xmlRpcParser->_xh['method']); for ($i = 0; $i < count($xmlRpcParser->_xh['params']); $i++) { $req->addParam($xmlRpcParser->_xh['params'][$i]); } - return $req; + case 'value': return $xmlRpcParser->_xh['value']; + + case 'fault': + // EPI api emulation + $v = $xmlRpcParser->_xh['value']; + // use a known error code + /** @var Value $vc */ + $vc = isset($v['faultCode']) ? $v['faultCode']->scalarval() : PhpXmlRpc::$xmlrpcerr['invalid_return']; + /** @var Value $vs */ + $vs = isset($v['faultString']) ? $v['faultString']->scalarval() : ''; + if (!is_int($vc) || $vc == 0) { + $vc = PhpXmlRpc::$xmlrpcerr['invalid_return']; + } + return new Response(0, $vc, $vs); default: return false; } } - }