XML-RPC Library for PHP
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转自http://scripts.incutio.com/xmlrpc/
<?php/* IXR - The Inutio XML-RPC Library - (c) Incutio Ltd 2002 Version 1.61 - Simon Willison, 11th July 2003 (htmlentities -> htmlspecialchars) Site: http://scripts.incutio.com/xmlrpc/ Manual: http://scripts.incutio.com/xmlrpc/manual.php Made available under the Artistic License: http://www.opensource.org/licenses/artistic-license.php*/class IXR_Value { var $data; var $type; function IXR_Value ($data, $type = false) { $this->data = $data; if (!$type) { $type = $this->calculateType(); } $this->type = $type; if ($type == 'struct') { /* Turn all the values in the array in to new IXR_Value objects */ foreach ($this->data as $key => $value) { $this->data[$key] = new IXR_Value($value); } } if ($type == 'array') { for ($i = 0, $j = count($this->data); $i < $j; $i++) { $this->data[$i] = new IXR_Value($this->data[$i]); } } } function calculateType() { if ($this->data === true || $this->data === false) { return 'boolean'; } if (is_integer($this->data)) { return 'int'; } if (is_double($this->data)) { return 'double'; } // Deal with IXR object types base64 and date if (is_object($this->data) && is_a($this->data, 'IXR_Date')) { return 'date'; } if (is_object($this->data) && is_a($this->data, 'IXR_Base64')) { return 'base64'; } // If it is a normal PHP object convert it in to a struct if (is_object($this->data)) { $this->data = get_object_vars($this->data); return 'struct'; } if (!is_array($this->data)) { return 'string'; } /* We have an array - is it an array or a struct ? */ if ($this->isStruct($this->data)) { return 'struct'; } else { return 'array'; } } function getXml() { /* Return XML for this value */ switch ($this->type) { case 'boolean': return '<boolean>'.(($this->data) ? '1' : '0').'</boolean>'; break; case 'int': return '<int>'.$this->data.'</int>'; break; case 'double': return '<double>'.$this->data.'</double>'; break; case 'string': return '<string>'.htmlspecialchars($this->data).'</string>'; break; case 'array': $return = '<array><data>'."/n"; foreach ($this->data as $item) { $return .= ' <value>'.$item->getXml()."</value>/n"; } $return .= '</data></array>'; return $return; break; case 'struct': $return = '<struct>'."/n"; foreach ($this->data as $name => $value) { $return .= " <member><name>$name</name><value>"; $return .= $value->getXml()."</value></member>/n"; } $return .= '</struct>'; return $return; break; case 'date': case 'base64': return $this->data->getXml(); break; } return false; } function isStruct($array) { /* Nasty function to check if an array is a struct or not */ $expected = 0; foreach ($array as $key => $value) { if ((string)$key != (string)$expected) { return true; } $expected++; } return false; }}class IXR_Message { var $message; var $messageType; // methodCall / methodResponse / fault var $faultCode; var $faultString; var $methodName; var $params; // Current variable stacks var 转自http://scripts.incutio.com/xmlrpc/
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arraystructs = array(); // The stack used to keep track of the current array/struct var 转自http://scripts.incutio.com/xmlrpc/
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arraystructstypes = array(); // Stack keeping track of if things are structs or array var 转自http://scripts.incutio.com/xmlrpc/
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currentStructName = array(); // A stack as well var 转自http://scripts.incutio.com/xmlrpc/
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param; var 转自http://scripts.incutio.com/xmlrpc/
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value; var 转自http://scripts.incutio.com/xmlrpc/
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currentTag; var 转自http://scripts.incutio.com/xmlrpc/
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currentTagContents; // The XML parser var 转自http://scripts.incutio.com/xmlrpc/
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parser; function IXR_Message ($message) { $this->message = $message; } function parse() { // first remove the XML declaration $this->message = preg_replace('/</?xml(.*)?/?'.'>/', '', $this->message); if (trim($this->message) == '') { return false; } $this->_parser = xml_parser_create(); // Set XML parser to take the case of tags in to account xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false); // Set XML parser callback functions xml_set_object($this->_parser, $this); xml_set_element_handler($this->_parser, 'tag_open', 'tag_close'); xml_set_character_data_handler($this->_parser, 'cdata'); if (!xml_parse($this->_parser, $this->message)) { /* die(sprintf('XML error: %s at line %d', xml_error_string(xml_get_error_code($this->_parser)), xml_get_current_line_number($this->_parser))); */ return false; } xml_parser_free($this->_parser); // Grab the error messages, if any if ($this->messageType == 'fault') { $this->faultCode = $this->params[0]['faultCode']; $this->faultString = $this->params[0]['faultString']; } return true; } function tag_open($parser, $tag, $attr) { $this->currentTag = $tag; switch($tag) { case 'methodCall': case 'methodResponse': case 'fault': $this->messageType = $tag; break; /* Deal with stacks of arrays and structs */ case 'data': // data is to all intents and puposes more interesting than array $this->_arraystructstypes[] = 'array'; $this->_arraystructs[] = array(); break; case 'struct': $this->_arraystructstypes[] = 'struct'; $this->_arraystructs[] = array(); break; } } function cdata($parser, $cdata) { $this->_currentTagContents .= $cdata; } function tag_close($parser, $tag) { $valueFlag = false; switch($tag) { case 'int': case 'i4': $value = (int)trim($this->_currentTagContents); $this->_currentTagContents = ''; $valueFlag = true; break; case 'double': $value = (double)trim($this->_currentTagContents); $this->_currentTagContents = ''; $valueFlag = true; break; case 'string': $value = (string)trim($this->_currentTagContents); $this->_currentTagContents = ''; $valueFlag = true; break; case 'dateTime.iso8601': $value = new IXR_Date(trim($this->_currentTagContents)); // $value = $iso->getTimestamp(); $this->_currentTagContents = ''; $valueFlag = true; break; case 'value': // "If no type is indicated, the type is string." if (trim($this->_currentTagContents) != '') { $value = (string)$this->_currentTagContents; $this->_currentTagContents = ''; $valueFlag = true; } break; case 'boolean': $value = (boolean)trim($this->_currentTagContents); $this->_currentTagContents = ''; $valueFlag = true; break; case 'base64': $value = base64_decode($this->_currentTagContents); $this->_currentTagContents = ''; $valueFlag = true; break; /* Deal with stacks of arrays and structs */ case 'data': case 'struct': $value = array_pop($this->_arraystructs); array_pop($this->_arraystructstypes); $valueFlag = true; break; case 'member': array_pop($this->_currentStructName); break; case 'name': $this->_currentStructName[] = trim($this->_currentTagContents); $this->_currentTagContents = ''; break; case 'methodName': $this->methodName = trim($this->_currentTagContents); $this->_currentTagContents = ''; break; } if ($valueFlag) { /* if (!is_array($value) && !is_object($value)) { $value = trim($value); } */ if (count($this->_arraystructs) > 0) { // Add value to struct or array if ($this->_arraystructstypes[count($this->_arraystructstypes)-1] == 'struct') { // Add to struct $this->_arraystructs[count($this->_arraystructs)-1][$this->_currentStructName[count($this->_currentStructName)-1]] = $value; } else { // Add to array $this->_arraystructs[count($this->_arraystructs)-1][] = $value; } } else { // Just add as a paramater $this->params[] = $value; } } } }class IXR_Server { var $data; var $callbacks = array(); var $message; var $capabilities; function IXR_Server($callbacks = false, $data = false) { $this->setCapabilities(); if ($callbacks) { $this->callbacks = $callbacks; } $this->setCallbacks(); $this->serve($data); } function serve($data = false) { if (!$data) { global $HTTP_RAW_POST_DATA; if (!$HTTP_RAW_POST_DATA) { die('XML-RPC server accepts POST requests only.'); } $data = $HTTP_RAW_POST_DATA; } $this->message = new IXR_Message($data); if (!$this->message->parse()) { $this->error(-32700, 'parse error. not well formed'); } if ($this->message->messageType != 'methodCall') { $this->error(-32600, 'server error. invalid xml-rpc. not conforming to spec. Request must be a methodCall'); } $result = $this->call($this->message->methodName, $this->message->params); // Is the result an error? if (is_a($result, 'IXR_Error')) { $this->error($result); } // Encode the result $r = new IXR_Value($result); $resultxml = $r->getXml(); // Create the XML $xml = <<<EOD<methodResponse> <params> <param> <value> $resultxml </value> </param> </params></methodResponse>EOD; // Send it $this->output($xml); } function call($methodname, $args) { if (!$this->hasMethod($methodname)) { return new IXR_Error(-32601, 'server error. requested method '.$methodname.' does not exist.'); } $method = $this->callbacks[$methodname]; // Perform the callback and send the response if (count($args) == 1) { // If only one paramater just send that instead of the whole array $args = $args[0]; } // Are we dealing with a function or a method? if (substr($method, 0, 5) == 'this:') { // It's a class method - check it exists $method = substr($method, 5); if (!method_exists($this, $method)) { return new IXR_Error(-32601, 'server error. requested class method "'.$method.'" does not exist.'); } // Call the method $result = $this->$method($args); } else { // It's a function - does it exist? if (!function_exists($method)) { return new IXR_Error(-32601, 'server error. requested function "'.$method.'" does not exist.'); } // Call the function $result = $method($args); } return $result; } function error($error, $message = false) { // Accepts either an error object or an error code and message if ($message && !is_object($error)) { $error = new IXR_Error($error, $message); } $this->output($error->getXml()); } function output($xml) { $xml = '<?xml version="1.0"?>'."/n".$xml; $length = strlen($xml); header('Connection: close'); header('Content-Length: '.$length); header('Content-Type: text/xml'); header('Date: '.date('r')); echo $xml; exit; } function hasMethod($method) { return in_array($method, array_keys($this->callbacks)); } function setCapabilities() { // Initialises capabilities array $this->capabilities = array( 'xmlrpc' => array( 'specUrl' => 'http://www.xmlrpc.com/spec', 'specVersion' => 1 ), 'faults_interop' => array( 'specUrl' => 'http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php', 'specVersion' => 20010516 ), 'system.multicall' => array( 'specUrl' => 'http://www.xmlrpc.com/discuss/msgReader$1208', 'specVersion' => 1 ), ); } function getCapabilities($args) { return $this->capabilities; } function setCallbacks() { $this->callbacks['system.getCapabilities'] = 'this:getCapabilities'; $this->callbacks['system.listMethods'] = 'this:listMethods'; $this->callbacks['system.multicall'] = 'this:multiCall'; } function listMethods($args) { // Returns a list of methods - uses array_reverse to ensure user defined // methods are listed before server defined methods return array_reverse(array_keys($this->callbacks)); } function multiCall($methodcalls) { // See http://www.xmlrpc.com/discuss/msgReader$1208 $return = array(); foreach ($methodcalls as $call) { $method = $call['methodName']; $params = $call['params']; if ($method == 'system.multicall') { $result = new IXR_Error(-32600, 'Recursive calls to system.multicall are forbidden'); } else { $result = $this->call($method, $params); } if (is_a($result, 'IXR_Error')) { $return[] = array( 'faultCode' => $result->code, 'faultString' => $result->message ); } else { $return[] = array($result); } } return $return; }}class IXR_Request { var $method; var $args; var $xml; function IXR_Request($method, $args) { $this->method = $method; $this->args = $args; $this->xml = <<<EOD<?xml version="1.0"?><methodCall><methodName>{$this->method}</methodName><params>EOD; foreach ($this->args as $arg) { $this->xml .= '<param><value>'; $v = new IXR_Value($arg); $this->xml .= $v->getXml(); $this->xml .= "</value></param>/n"; } $this->xml .= '</params></methodCall>'; } function getLength() { return strlen($this->xml); } function getXml() { return $this->xml; }}class IXR_Client { var $server; var $port; var $path; var $useragent; var $response; var $message = false; var $debug = false; // Storage place for an error message var $error = false; function IXR_Client($server, $path = false, $port = 80) { if (!$path) { // Assume we have been given a URL instead $bits = parse_url($server); $this->server = $bits['host']; $this->port = isset($bits['port']) ? $bits['port'] : 80; $this->path = isset($bits['path']) ? $bits['path'] : '/'; // Make absolutely sure we have a path if (!$this->path) { $this->path = '/'; } } else { $this->server = $server; $this->path = $path; $this->port = $port; } $this->useragent = 'The Incutio XML-RPC PHP Library'; } function query() { $args = func_get_args(); $method = array_shift($args); $request = new IXR_Request($method, $args); $length = $request->getLength(); $xml = $request->getXml(); $r = "/r/n"; $request = "POST {$this->path} HTTP/1.0$r"; $request .= "Host: {$this->server}$r"; $request .= "Content-Type: text/xml$r"; $request .= "User-Agent: {$this->useragent}$r"; $request .= "Content-length: {$length}$r$r"; $request .= $xml; // Now send the request if ($this->debug) { echo '<pre>'.htmlspecialchars($request)."/n</pre>/n/n"; } $fp = @fsockopen($this->server, $this->port); if (!$fp) { $this->error = new IXR_Error(-32300, 'transport error - could not open socket'); return false; } fputs($fp, $request); $contents = ''; $gotFirstLine = false; $gettingHeaders = true; while (!feof($fp)) { $line = fgets($fp, 4096); if (!$gotFirstLine) { // Check line for '200' if (strstr($line, '200') === false) { $this->error = new IXR_Error(-32300, 'transport error - HTTP status code was not 200'); return false; } $gotFirstLine = true; } if (trim($line) == '') { $gettingHeaders = false; } if (!$gettingHeaders) { $contents .= trim($line)."/n"; } } if ($this->debug) { echo '<pre>'.htmlspecialchars($contents)."/n</pre>/n/n"; } // Now parse what we've got back $this->message = new IXR_Message($contents); if (!$this->message->parse()) { // XML error $this->error = new IXR_Error(-32700, 'parse error. not well formed'); return false; } // Is the message a fault? if ($this->message->messageType == 'fault') { $this->error = new IXR_Error($this->message->faultCode, $this->message->faultString); return false; } // Message must be OK return true; } function getResponse() { // methodResponses can only have one param - return that return $this->message->params[0]; } function isError() { return (is_object($this->error)); } function getErrorCode() { return $this->error->code; } function getErrorMessage() { return $this->error->message; }}class IXR_Error { var $code; var $message; function IXR_Error($code, $message) { $this->code = $code; $this->message = $message; } function getXml() { $xml = <<<EOD<methodResponse> <fault> <value> <struct> <member> <name>faultCode</name> <value><int>{$this->code}</int></value> </member> <member> <name>faultString</name> <value><string>{$this->message}</string></value> </member> </struct> </value> </fault></methodResponse> EOD; return $xml; }}class IXR_Date { var $year; var $month; var $day; var $hour; var $minute; var $second; function IXR_Date($time) { // $time can be a PHP timestamp or an ISO one if (is_numeric($time)) { $this->parseTimestamp($time); } else { $this->parseIso($time); } } function parseTimestamp($timestamp) { $this->year = date('Y', $timestamp); $this->month = date('Y', $timestamp); $this->day = date('Y', $timestamp); $this->hour = date('H', $timestamp); $this->minute = date('i', $timestamp); $this->second = date('s', $timestamp); } function parseIso($iso) { $this->year = substr($iso, 0, 4); $this->month = substr($iso, 4, 2); $this->day = substr($iso, 6, 2); $this->hour = substr($iso, 9, 2); $this->minute = substr($iso, 12, 2); $this->second = substr($iso, 15, 2); } function getIso() { return $this->year.$this->month.$this->day.'T'.$this->hour.':'.$this->minute.':'.$this->second; } function getXml() { return '<dateTime.iso8601>'.$this->getIso().'</dateTime.iso8601>'; } function getTimestamp() { return mktime($this->hour, $this->minute, $this->second, $this->month, $this->day, $this->year); }}class IXR_Base64 { var $data; function IXR_Base64($data) { $this->data = $data; } function getXml() { return '<base64>'.base64_encode($this->data).'</base64>'; }}class IXR_IntrospectionServer extends IXR_Server { var $signatures; var $help; function IXR_IntrospectionServer() { $this->setCallbacks(); $this->setCapabilities(); $this->capabilities['introspection'] = array( 'specUrl' => 'http://xmlrpc.usefulinc.com/doc/reserved.html', 'specVersion' => 1 ); $this->addCallback( 'system.methodSignature', 'this:methodSignature', array('array', 'string'), 'Returns an array describing the return type and required parameters of a method' ); $this->addCallback( 'system.getCapabilities', 'this:getCapabilities', array('struct'), 'Returns a struct describing the XML-RPC specifications supported by this server' ); $this->addCallback( 'system.listMethods', 'this:listMethods', array('array'), 'Returns an array of available methods on this server' ); $this->addCallback( 'system.methodHelp', 'this:methodHelp', array('string', 'string'), 'Returns a documentation string for the specified method' ); } function addCallback($method, $callback, $args, $help) { $this->callbacks[$method] = $callback; $this->signatures[$method] = $args; $this->help[$method] = $help; } function call($methodname, $args) { // Make sure it's in an array if ($args && !is_array($args)) { $args = array($args); } // Over-rides default call method, adds signature check if (!$this->hasMethod($methodname)) { return new IXR_Error(-32601, 'server error. requested method "'.$this->message->methodName.'" not specified.'); } $method = $this->callbacks[$methodname]; $signature = $this->signatures[$methodname]; $returnType = array_shift($signature); // Check the number of arguments if (count($args) != count($signature)) { // print 'Num of args: '.count($args).' Num in signature: '.count($signature); return new IXR_Error(-32602, 'server error. wrong number of method parameters'); } // Check the argument types $ok = true; $argsbackup = $args; for ($i = 0, $j = count($args); $i < $j; $i++) { $arg = array_shift($args); $type = array_shift($signature); switch ($type) { case 'int': case 'i4': if (is_array($arg) || !is_int($arg)) { $ok = false; } break; case 'base64': case 'string': if (!is_string($arg)) { $ok = false; } break; case 'boolean': if ($arg !== false && $arg !== true) { $ok = false; } break; case 'float': case 'double': if (!is_float($arg)) { $ok = false; } break; case 'date': case 'dateTime.iso8601': if (!is_a($arg, 'IXR_Date')) { $ok = false; } break; } if (!$ok) { return new IXR_Error(-32602, 'server error. invalid method parameters'); } } // It passed the test - run the "real" method call return parent::call($methodname, $argsbackup); } function methodSignature($method) { if (!$this->hasMethod($method)) { return new IXR_Error(-32601, 'server error. requested method "'.$method.'" not specified.'); } // We should be returning an array of types $types = $this->signatures[$method]; $return = array(); foreach ($types as $type) { switch ($type) { case 'string': $return[] = 'string'; break; case 'int': case 'i4': $return[] = 42; break; case 'double': $return[] = 3.1415; break; case 'dateTime.iso8601': $return[] = new IXR_Date(time()); break; case 'boolean': $return[] = true; break; case 'base64': $return[] = new IXR_Base64('base64'); break; case 'array': $return[] = array('array'); break; case 'struct': $return[] = array('struct' => 'struct'); break; } } return $return; } function methodHelp($method) { return $this->help[$method]; }}class IXR_ClientMulticall extends IXR_Client { var $calls = array(); function IXR_ClientMulticall($server, $path = false, $port = 80) { parent::IXR_Client($server, $path, $port); $this->useragent = 'The Incutio XML-RPC PHP Library (multicall client)'; } function addCall() { $args = func_get_args(); $methodName = array_shift($args); $struct = array( 'methodName' => $methodName, 'params' => $args ); $this->calls[] = $struct; } function query() { // Prepare multicall, then call the parent::query() method return parent::query('system.multicall', $this->calls); }}?>
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