Index: class.soap_server.php
===================================================================
--- class.soap_server.php	(revision 153)
+++ class.soap_server.php	(revision 154)
@@ -0,0 +1,1038 @@
+<?php
+
+
+
+
+/**
+*
+* soap_server allows the user to create a SOAP server
+* that is capable of receiving messages and returning responses
+*
+* NOTE: WSDL functionality is experimental
+*
+* @author   Dietrich Ayala <dietrich@ganx4.com>
+* @version  $Id: class.soap_server.php,v 1.48 2005/08/04 01:27:42 snichol Exp $
+* @access   public
+*/
+class soap_server extends nusoap_base {
+	/**
+	 * HTTP headers of request
+	 * @var array
+	 * @access private
+	 */
+	var $headers = array();
+	/**
+	 * HTTP request
+	 * @var string
+	 * @access private
+	 */
+	var $request = '';
+	/**
+	 * SOAP headers from request (incomplete namespace resolution; special characters not escaped) (text)
+	 * @var string
+	 * @access public
+	 */
+	var $requestHeaders = '';
+	/**
+	 * SOAP body request portion (incomplete namespace resolution; special characters not escaped) (text)
+	 * @var string
+	 * @access public
+	 */
+	var $document = '';
+	/**
+	 * SOAP payload for request (text)
+	 * @var string
+	 * @access public
+	 */
+	var $requestSOAP = '';
+	/**
+	 * requested method namespace URI
+	 * @var string
+	 * @access private
+	 */
+	var $methodURI = '';
+	/**
+	 * name of method requested
+	 * @var string
+	 * @access private
+	 */
+	var $methodname = '';
+	/**
+	 * method parameters from request
+	 * @var array
+	 * @access private
+	 */
+	var $methodparams = array();
+	/**
+	 * SOAP Action from request
+	 * @var string
+	 * @access private
+	 */
+	var $SOAPAction = '';
+	/**
+	 * character set encoding of incoming (request) messages
+	 * @var string
+	 * @access public
+	 */
+	var $xml_encoding = '';
+	/**
+	 * toggles whether the parser decodes element content w/ utf8_decode()
+	 * @var boolean
+	 * @access public
+	 */
+    var $decode_utf8 = true;
+
+	/**
+	 * HTTP headers of response
+	 * @var array
+	 * @access public
+	 */
+	var $outgoing_headers = array();
+	/**
+	 * HTTP response
+	 * @var string
+	 * @access private
+	 */
+	var $response = '';
+	/**
+	 * SOAP headers for response (text)
+	 * @var string
+	 * @access public
+	 */
+	var $responseHeaders = '';
+	/**
+	 * SOAP payload for response (text)
+	 * @var string
+	 * @access private
+	 */
+	var $responseSOAP = '';
+	/**
+	 * method return value to place in response
+	 * @var mixed
+	 * @access private
+	 */
+	var $methodreturn = false;
+	/**
+	 * whether $methodreturn is a string of literal XML
+	 * @var boolean
+	 * @access public
+	 */
+	var $methodreturnisliteralxml = false;
+	/**
+	 * SOAP fault for response (or false)
+	 * @var mixed
+	 * @access private
+	 */
+	var $fault = false;
+	/**
+	 * text indication of result (for debugging)
+	 * @var string
+	 * @access private
+	 */
+	var $result = 'successful';
+
+	/**
+	 * assoc array of operations => opData; operations are added by the register()
+	 * method or by parsing an external WSDL definition
+	 * @var array
+	 * @access private
+	 */
+	var $operations = array();
+	/**
+	 * wsdl instance (if one)
+	 * @var mixed
+	 * @access private
+	 */
+	var $wsdl = false;
+	/**
+	 * URL for WSDL (if one)
+	 * @var mixed
+	 * @access private
+	 */
+	var $externalWSDLURL = false;
+	/**
+	 * whether to append debug to response as XML comment
+	 * @var boolean
+	 * @access public
+	 */
+	var $debug_flag = false;
+
+
+	/**
+	* constructor
+    * the optional parameter is a path to a WSDL file that you'd like to bind the server instance to.
+	*
+    * @param mixed $wsdl file path or URL (string), or wsdl instance (object)
+	* @access   public
+	*/
+	function soap_server($wsdl=false){
+		parent::nusoap_base();
+		// turn on debugging?
+		global $debug;
+		global $HTTP_SERVER_VARS;
+
+		if (isset($_SERVER)) {
+			$this->debug("_SERVER is defined:");
+			$this->appendDebug($this->varDump($_SERVER));
+		} elseif (isset($HTTP_SERVER_VARS)) {
+			$this->debug("HTTP_SERVER_VARS is defined:");
+			$this->appendDebug($this->varDump($HTTP_SERVER_VARS));
+		} else {
+			$this->debug("Neither _SERVER nor HTTP_SERVER_VARS is defined.");
+		}
+
+		if (isset($debug)) {
+			$this->debug("In soap_server, set debug_flag=$debug based on global flag");
+			$this->debug_flag = $debug;
+		} elseif (isset($_SERVER['QUERY_STRING'])) {
+			$qs = explode('&', $_SERVER['QUERY_STRING']);
+			foreach ($qs as $v) {
+				if (substr($v, 0, 6) == 'debug=') {
+					$this->debug("In soap_server, set debug_flag=" . substr($v, 6) . " based on query string #1");
+					$this->debug_flag = substr($v, 6);
+				}
+			}
+		} elseif (isset($HTTP_SERVER_VARS['QUERY_STRING'])) {
+			$qs = explode('&', $HTTP_SERVER_VARS['QUERY_STRING']);
+			foreach ($qs as $v) {
+				if (substr($v, 0, 6) == 'debug=') {
+					$this->debug("In soap_server, set debug_flag=" . substr($v, 6) . " based on query string #2");
+					$this->debug_flag = substr($v, 6);
+				}
+			}
+		}
+
+		// wsdl
+		if($wsdl){
+			$this->debug("In soap_server, WSDL is specified");
+			if (is_object($wsdl) && (get_class($wsdl) == 'wsdl')) {
+				$this->wsdl = $wsdl;
+				$this->externalWSDLURL = $this->wsdl->wsdl;
+				$this->debug('Use existing wsdl instance from ' . $this->externalWSDLURL);
+			} else {
+				$this->debug('Create wsdl from ' . $wsdl);
+				$this->wsdl = new wsdl($wsdl);
+				$this->externalWSDLURL = $wsdl;
+			}
+			$this->appendDebug($this->wsdl->getDebug());
+			$this->wsdl->clearDebug();
+			if($err = $this->wsdl->getError()){
+				die('WSDL ERROR: '.$err);
+			}
+		}
+	}
+
+	/**
+	* processes request and returns response
+	*
+	* @param    string $data usually is the value of $HTTP_RAW_POST_DATA
+	* @access   public
+	*/
+	function service($data){
+		global $HTTP_SERVER_VARS;
+
+		if (isset($_SERVER['QUERY_STRING'])) {
+			$qs = $_SERVER['QUERY_STRING'];
+		} elseif (isset($HTTP_SERVER_VARS['QUERY_STRING'])) {
+			$qs = $HTTP_SERVER_VARS['QUERY_STRING'];
+		} else {
+			$qs = '';
+		}
+		$this->debug("In service, query string=$qs");
+
+		if (ereg('wsdl', $qs) ){
+			$this->debug("In service, this is a request for WSDL");
+			if($this->externalWSDLURL){
+              if (strpos($this->externalWSDLURL,"://")!==false) { // assume URL
+				header('Location: '.$this->externalWSDLURL);
+              } else { // assume file
+                header("Content-Type: text/xml\r\n");
+                $fp = fopen($this->externalWSDLURL, 'r');
+                fpassthru($fp);
+              }
+			} elseif ($this->wsdl) {
+				header("Content-Type: text/xml; charset=ISO-8859-1\r\n");
+				print $this->wsdl->serialize($this->debug_flag);
+				if ($this->debug_flag) {
+					$this->debug('wsdl:');
+					$this->appendDebug($this->varDump($this->wsdl));
+					print $this->getDebugAsXMLComment();
+				}
+			} else {
+				header("Content-Type: text/html; charset=ISO-8859-1\r\n");
+				print "This service does not provide WSDL";
+			}
+		} elseif ($data == '' && $this->wsdl) {
+			$this->debug("In service, there is no data, so return Web description");
+			print $this->wsdl->webDescription();
+		} else {
+			$this->debug("In service, invoke the request");
+			$this->parse_request($data);
+			if (! $this->fault) {
+				$this->invoke_method();
+			}
+			if (! $this->fault) {
+				$this->serialize_return();
+			}
+			$this->send_response();
+		}
+	}
+
+	/**
+	* parses HTTP request headers.
+	*
+	* The following fields are set by this function (when successful)
+	*
+	* headers
+	* request
+	* xml_encoding
+	* SOAPAction
+	*
+	* @access   private
+	*/
+	function parse_http_headers() {
+		global $HTTP_SERVER_VARS;
+
+		$this->request = '';
+		$this->SOAPAction = '';
+		if(function_exists('getallheaders')){
+			$this->debug("In parse_http_headers, use getallheaders");
+			$headers = getallheaders();
+			foreach($headers as $k=>$v){
+				$k = strtolower($k);
+				$this->headers[$k] = $v;
+				$this->request .= "$k: $v\r\n";
+				$this->debug("$k: $v");
+			}
+			// get SOAPAction header
+			if(isset($this->headers['soapaction'])){
+				$this->SOAPAction = str_replace('"','',$this->headers['soapaction']);
+			}
+			// get the character encoding of the incoming request
+			if(isset($this->headers['content-type']) && strpos($this->headers['content-type'],'=')){
+				$enc = str_replace('"','',substr(strstr($this->headers["content-type"],'='),1));
+				if(eregi('^(ISO-8859-1|US-ASCII|UTF-8)$',$enc)){
+					$this->xml_encoding = strtoupper($enc);
+				} else {
+					$this->xml_encoding = 'US-ASCII';
+				}
+			} else {
+				// should be US-ASCII for HTTP 1.0 or ISO-8859-1 for HTTP 1.1
+				$this->xml_encoding = 'ISO-8859-1';
+			}
+		} elseif(isset($_SERVER) && is_array($_SERVER)){
+			$this->debug("In parse_http_headers, use _SERVER");
+			foreach ($_SERVER as $k => $v) {
+				if (substr($k, 0, 5) == 'HTTP_') {
+					$k = str_replace(' ', '-', strtolower(str_replace('_', ' ', substr($k, 5)))); 	                                         $k = strtolower(substr($k, 5));
+				} else {
+					$k = str_replace(' ', '-', strtolower(str_replace('_', ' ', $k))); 	                                         $k = strtolower($k);
+				}
+				if ($k == 'soapaction') {
+					// get SOAPAction header
+					$k = 'SOAPAction';
+					$v = str_replace('"', '', $v);
+					$v = str_replace('\\', '', $v);
+					$this->SOAPAction = $v;
+				} else if ($k == 'content-type') {
+					// get the character encoding of the incoming request
+					if (strpos($v, '=')) {
+						$enc = substr(strstr($v, '='), 1);
+						$enc = str_replace('"', '', $enc);
+						$enc = str_replace('\\', '', $enc);
+						if (eregi('^(ISO-8859-1|US-ASCII|UTF-8)$', $enc)) {
+							$this->xml_encoding = strtoupper($enc);
+						} else {
+							$this->xml_encoding = 'US-ASCII';
+						}
+					} else {
+						// should be US-ASCII for HTTP 1.0 or ISO-8859-1 for HTTP 1.1
+						$this->xml_encoding = 'ISO-8859-1';
+					}
+				}
+				$this->headers[$k] = $v;
+				$this->request .= "$k: $v\r\n";
+				$this->debug("$k: $v");
+			}
+		} elseif (is_array($HTTP_SERVER_VARS)) {
+			$this->debug("In parse_http_headers, use HTTP_SERVER_VARS");
+			foreach ($HTTP_SERVER_VARS as $k => $v) {
+				if (substr($k, 0, 5) == 'HTTP_') {
+					$k = str_replace(' ', '-', strtolower(str_replace('_', ' ', substr($k, 5)))); 	                                         $k = strtolower(substr($k, 5));
+				} else {
+					$k = str_replace(' ', '-', strtolower(str_replace('_', ' ', $k))); 	                                         $k = strtolower($k);
+				}
+				if ($k == 'soapaction') {
+					// get SOAPAction header
+					$k = 'SOAPAction';
+					$v = str_replace('"', '', $v);
+					$v = str_replace('\\', '', $v);
+					$this->SOAPAction = $v;
+				} else if ($k == 'content-type') {
+					// get the character encoding of the incoming request
+					if (strpos($v, '=')) {
+						$enc = substr(strstr($v, '='), 1);
+						$enc = str_replace('"', '', $enc);
+						$enc = str_replace('\\', '', $enc);
+						if (eregi('^(ISO-8859-1|US-ASCII|UTF-8)$', $enc)) {
+							$this->xml_encoding = strtoupper($enc);
+						} else {
+							$this->xml_encoding = 'US-ASCII';
+						}
+					} else {
+						// should be US-ASCII for HTTP 1.0 or ISO-8859-1 for HTTP 1.1
+						$this->xml_encoding = 'ISO-8859-1';
+					}
+				}
+				$this->headers[$k] = $v;
+				$this->request .= "$k: $v\r\n";
+				$this->debug("$k: $v");
+			}
+		} else {
+			$this->debug("In parse_http_headers, HTTP headers not accessible");
+			$this->setError("HTTP headers not accessible");
+		}
+	}
+
+	/**
+	* parses a request
+	*
+	* The following fields are set by this function (when successful)
+	*
+	* headers
+	* request
+	* xml_encoding
+	* SOAPAction
+	* request
+	* requestSOAP
+	* methodURI
+	* methodname
+	* methodparams
+	* requestHeaders
+	* document
+	*
+	* This sets the fault field on error
+	*
+	* @param    string $data XML string
+	* @access   private
+	*/
+	function parse_request($data='') {
+		$this->debug('entering parse_request()');
+		$this->parse_http_headers();
+		$this->debug('got character encoding: '.$this->xml_encoding);
+		// uncompress if necessary
+		if (isset($this->headers['content-encoding']) && $this->headers['content-encoding'] != '') {
+			$this->debug('got content encoding: ' . $this->headers['content-encoding']);
+			if ($this->headers['content-encoding'] == 'deflate' || $this->headers['content-encoding'] == 'gzip') {
+		    	// if decoding works, use it. else assume data wasn't gzencoded
+				if (function_exists('gzuncompress')) {
+					if ($this->headers['content-encoding'] == 'deflate' && $degzdata = @gzuncompress($data)) {
+						$data = $degzdata;
+					} elseif ($this->headers['content-encoding'] == 'gzip' && $degzdata = gzinflate(substr($data, 10))) {
+						$data = $degzdata;
+					} else {
+						$this->fault('Client', 'Errors occurred when trying to decode the data');
+						return;
+					}
+				} else {
+					$this->fault('Client', 'This Server does not support compressed data');
+					return;
+				}
+			}
+		}
+		$this->request .= "\r\n".$data;
+		$data = $this->parseRequest($this->headers, $data);
+		$this->requestSOAP = $data;
+		$this->debug('leaving parse_request');
+	}
+
+	/**
+	* invokes a PHP function for the requested SOAP method
+	*
+	* The following fields are set by this function (when successful)
+	*
+	* methodreturn
+	*
+	* Note that the PHP function that is called may also set the following
+	* fields to affect the response sent to the client
+	*
+	* responseHeaders
+	* outgoing_headers
+	*
+	* This sets the fault field on error
+	*
+	* @access   private
+	*/
+	function invoke_method() {
+		$this->debug('in invoke_method, methodname=' . $this->methodname . ' methodURI=' . $this->methodURI . ' SOAPAction=' . $this->SOAPAction);
+
+		if ($this->wsdl) {
+			if ($this->opData = $this->wsdl->getOperationData($this->methodname)) {
+				$this->debug('in invoke_method, found WSDL operation=' . $this->methodname);
+				$this->appendDebug('opData=' . $this->varDump($this->opData));
+			} elseif ($this->opData = $this->wsdl->getOperationDataForSoapAction($this->SOAPAction)) {
+				// Note: hopefully this case will only be used for doc/lit, since rpc services should have wrapper element
+				$this->debug('in invoke_method, found WSDL soapAction=' . $this->SOAPAction . ' for operation=' . $this->opData['name']);
+				$this->appendDebug('opData=' . $this->varDump($this->opData));
+				$this->methodname = $this->opData['name'];
+			} else {
+				$this->debug('in invoke_method, no WSDL for operation=' . $this->methodname);
+				$this->fault('Client', "Operation '" . $this->methodname . "' is not defined in the WSDL for this service");
+				return;
+			}
+		} else {
+			$this->debug('in invoke_method, no WSDL to validate method');
+		}
+
+		// if a . is present in $this->methodname, we see if there is a class in scope,
+		// which could be referred to. We will also distinguish between two deliminators,
+		// to allow methods to be called a the class or an instance
+		$class = '';
+		$method = '';
+		if (strpos($this->methodname, '..') > 0) {
+			$delim = '..';
+		} else if (strpos($this->methodname, '.') > 0) {
+			$delim = '.';
+		} else {
+			$delim = '';
+		}
+
+		if (strlen($delim) > 0 && substr_count($this->methodname, $delim) == 1 &&
+			class_exists(substr($this->methodname, 0, strpos($this->methodname, $delim)))) {
+			// get the class and method name
+			$class = substr($this->methodname, 0, strpos($this->methodname, $delim));
+			$method = substr($this->methodname, strpos($this->methodname, $delim) + strlen($delim));
+			$this->debug("in invoke_method, class=$class method=$method delim=$delim");
+		}
+
+		// does method exist?
+		if ($class == '') {
+			if (!function_exists($this->methodname)) {
+				$this->debug("in invoke_method, function '$this->methodname' not found!");
+				$this->result = 'fault: method not found';
+				$this->fault('Client',"method '$this->methodname' not defined in service");
+				return;
+			}
+		} else {
+			$method_to_compare = (substr(phpversion(), 0, 2) == '4.') ? strtolower($method) : $method;
+			if (!in_array($method_to_compare, get_class_methods($class))) {
+				$this->debug("in invoke_method, method '$this->methodname' not found in class '$class'!");
+				$this->result = 'fault: method not found';
+				$this->fault('Client',"method '$this->methodname' not defined in service");
+				return;
+			}
+		}
+
+		// evaluate message, getting back parameters
+		// verify that request parameters match the method's signature
+		if(! $this->verify_method($this->methodname,$this->methodparams)){
+			// debug
+			$this->debug('ERROR: request not verified against method signature');
+			$this->result = 'fault: request failed validation against method signature';
+			// return fault
+			$this->fault('Client',"Operation '$this->methodname' not defined in service.");
+			return;
+		}
+
+		// if there are parameters to pass
+		$this->debug('in invoke_method, params:');
+		$this->appendDebug($this->varDump($this->methodparams));
+		$this->debug("in invoke_method, calling '$this->methodname'");
+		if (!function_exists('call_user_func_array')) {
+			if ($class == '') {
+				$this->debug('in invoke_method, calling function using eval()');
+				$funcCall = "\$this->methodreturn = $this->methodname(";
+			} else {
+				if ($delim == '..') {
+					$this->debug('in invoke_method, calling class method using eval()');
+					$funcCall = "\$this->methodreturn = ".$class."::".$method."(";
+				} else {
+					$this->debug('in invoke_method, calling instance method using eval()');
+					// generate unique instance name
+					$instname = "\$inst_".time();
+					$funcCall = $instname." = new ".$class."(); ";
+					$funcCall .= "\$this->methodreturn = ".$instname."->".$method."(";
+				}
+			}
+			if ($this->methodparams) {
+				foreach ($this->methodparams as $param) {
+					if (is_array($param)) {
+						$this->fault('Client', 'NuSOAP does not handle complexType parameters correctly when using eval; call_user_func_array must be available');
+						return;
+					}
+					$funcCall .= "\"$param\",";
+				}
+				$funcCall = substr($funcCall, 0, -1);
+			}
+			$funcCall .= ');';
+			$this->debug('in invoke_method, function call: '.$funcCall);
+			@eval($funcCall);
+		} else {
+			if ($class == '') {
+				$this->debug('in invoke_method, calling function using call_user_func_array()');
+				$call_arg = "$this->methodname";	// straight assignment changes $this->methodname to lower case after call_user_func_array()
+			} elseif ($delim == '..') {
+				$this->debug('in invoke_method, calling class method using call_user_func_array()');
+				$call_arg = array ($class, $method);
+			} else {
+				$this->debug('in invoke_method, calling instance method using call_user_func_array()');
+				$instance = new $class ();
+				$call_arg = array(&$instance, $method);
+			}
+			$this->methodreturn = call_user_func_array($call_arg, $this->methodparams);
+		}
+        $this->debug('in invoke_method, methodreturn:');
+        $this->appendDebug($this->varDump($this->methodreturn));
+		$this->debug("in invoke_method, called method $this->methodname, received $this->methodreturn of type ".gettype($this->methodreturn));
+	}
+
+	/**
+	* serializes the return value from a PHP function into a full SOAP Envelope
+	*
+	* The following fields are set by this function (when successful)
+	*
+	* responseSOAP
+	*
+	* This sets the fault field on error
+	*
+	* @access   private
+	*/
+	function serialize_return() {
+		$this->debug('Entering serialize_return methodname: ' . $this->methodname . ' methodURI: ' . $this->methodURI);
+		// if fault
+		if (isset($this->methodreturn) && (get_class($this->methodreturn) == 'soap_fault')) {
+			$this->debug('got a fault object from method');
+			$this->fault = $this->methodreturn;
+			return;
+		} elseif ($this->methodreturnisliteralxml) {
+			$return_val = $this->methodreturn;
+		// returned value(s)
+		} else {
+			$this->debug('got a(n) '.gettype($this->methodreturn).' from method');
+			$this->debug('serializing return value');
+			if($this->wsdl){
+				// weak attempt at supporting multiple output params
+				if(sizeof($this->opData['output']['parts']) > 1){
+			    	$opParams = $this->methodreturn;
+			    } else {
+			    	// TODO: is this really necessary?
+			    	$opParams = array($this->methodreturn);
+			    }
+			    $return_val = $this->wsdl->serializeRPCParameters($this->methodname,'output',$opParams);
+			    $this->appendDebug($this->wsdl->getDebug());
+			    $this->wsdl->clearDebug();
+				if($errstr = $this->wsdl->getError()){
+					$this->debug('got wsdl error: '.$errstr);
+					$this->fault('Server', 'unable to serialize result');
+					return;
+				}
+			} else {
+				if (isset($this->methodreturn)) {
+					$return_val = $this->serialize_val($this->methodreturn, 'return');
+				} else {
+					$return_val = '';
+					$this->debug('in absence of WSDL, assume void return for backward compatibility');
+				}
+			}
+		}
+		$this->debug('return value:');
+		$this->appendDebug($this->varDump($return_val));
+
+		$this->debug('serializing response');
+		if ($this->wsdl) {
+			$this->debug('have WSDL for serialization: style is ' . $this->opData['style']);
+			if ($this->opData['style'] == 'rpc') {
+				$this->debug('style is rpc for serialization: use is ' . $this->opData['output']['use']);
+				if ($this->opData['output']['use'] == 'literal') {
+					$payload = '<'.$this->methodname.'Response xmlns="'.$this->methodURI.'">'.$return_val.'</'.$this->methodname."Response>";
+				} else {
+					$payload = '<ns1:'.$this->methodname.'Response xmlns:ns1="'.$this->methodURI.'">'.$return_val.'</ns1:'.$this->methodname."Response>";
+				}
+			} else {
+				$this->debug('style is not rpc for serialization: assume document');
+				$payload = $return_val;
+			}
+		} else {
+			$this->debug('do not have WSDL for serialization: assume rpc/encoded');
+			$payload = '<ns1:'.$this->methodname.'Response xmlns:ns1="'.$this->methodURI.'">'.$return_val.'</ns1:'.$this->methodname."Response>";
+		}
+		$this->result = 'successful';
+		if($this->wsdl){
+			//if($this->debug_flag){
+            	$this->appendDebug($this->wsdl->getDebug());
+            //	}
+			if (isset($opData['output']['encodingStyle'])) {
+				$encodingStyle = $opData['output']['encodingStyle'];
+			} else {
+				$encodingStyle = '';
+			}
+			// Added: In case we use a WSDL, return a serialized env. WITH the usedNamespaces.
+			$this->responseSOAP = $this->serializeEnvelope($payload,$this->responseHeaders,$this->wsdl->usedNamespaces,$this->opData['style'],$encodingStyle);
+		} else {
+			$this->responseSOAP = $this->serializeEnvelope($payload,$this->responseHeaders);
+		}
+		$this->debug("Leaving serialize_return");
+	}
+
+	/**
+	* sends an HTTP response
+	*
+	* The following fields are set by this function (when successful)
+	*
+	* outgoing_headers
+	* response
+	*
+	* @access   private
+	*/
+	function send_response() {
+		$this->debug('Enter send_response');
+		if ($this->fault) {
+			$payload = $this->fault->serialize();
+			$this->outgoing_headers[] = "HTTP/1.0 500 Internal Server Error";
+			$this->outgoing_headers[] = "Status: 500 Internal Server Error";
+		} else {
+			$payload = $this->responseSOAP;
+			// Some combinations of PHP+Web server allow the Status
+			// to come through as a header.  Since OK is the default
+			// just do nothing.
+			// $this->outgoing_headers[] = "HTTP/1.0 200 OK";
+			// $this->outgoing_headers[] = "Status: 200 OK";
+		}
+        // add debug data if in debug mode
+		if(isset($this->debug_flag) && $this->debug_flag){
+        	$payload .= $this->getDebugAsXMLComment();
+        }
+		$this->outgoing_headers[] = "Server: $this->title Server v$this->version";
+		ereg('\$Revisio' . 'n: ([^ ]+)', $this->revision, $rev);
+		$this->outgoing_headers[] = "X-SOAP-Server: $this->title/$this->version (".$rev[1].")";
+		// Let the Web server decide about this
+		//$this->outgoing_headers[] = "Connection: Close\r\n";
+		$payload = $this->getHTTPBody($payload);
+		$type = $this->getHTTPContentType();
+		$charset = $this->getHTTPContentTypeCharset();
+		$this->outgoing_headers[] = "Content-Type: $type" . ($charset ? '; charset=' . $charset : '');
+		//begin code to compress payload - by John
+		// NOTE: there is no way to know whether the Web server will also compress
+		// this data.
+		if (strlen($payload) > 1024 && isset($this->headers) && isset($this->headers['accept-encoding'])) {	
+			if (strstr($this->headers['accept-encoding'], 'gzip')) {
+				if (function_exists('gzencode')) {
+					if (isset($this->debug_flag) && $this->debug_flag) {
+						$payload .= "<!-- Content being gzipped -->";
+					}
+					$this->outgoing_headers[] = "Content-Encoding: gzip";
+					$payload = gzencode($payload);
+				} else {
+					if (isset($this->debug_flag) && $this->debug_flag) {
+						$payload .= "<!-- Content will not be gzipped: no gzencode -->";
+					}
+				}
+			} elseif (strstr($this->headers['accept-encoding'], 'deflate')) {
+				// Note: MSIE requires gzdeflate output (no Zlib header and checksum),
+				// instead of gzcompress output,
+				// which conflicts with HTTP 1.1 spec (http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.5)
+				if (function_exists('gzdeflate')) {
+					if (isset($this->debug_flag) && $this->debug_flag) {
+						$payload .= "<!-- Content being deflated -->";
+					}
+					$this->outgoing_headers[] = "Content-Encoding: deflate";
+					$payload = gzdeflate($payload);
+				} else {
+					if (isset($this->debug_flag) && $this->debug_flag) {
+						$payload .= "<!-- Content will not be deflated: no gzcompress -->";
+					}
+				}
+			}
+		}
+		//end code
+		$this->outgoing_headers[] = "Content-Length: ".strlen($payload);
+		reset($this->outgoing_headers);
+		foreach($this->outgoing_headers as $hdr){
+			header($hdr, false);
+		}
+		print $payload;
+		$this->response = join("\r\n",$this->outgoing_headers)."\r\n\r\n".$payload;
+	}
+
+	/**
+	* takes the value that was created by parsing the request
+	* and compares to the method's signature, if available.
+	*
+	* @param	string	$operation	The operation to be invoked
+	* @param	array	$request	The array of parameter values
+	* @return	boolean	Whether the operation was found
+	* @access   private
+	*/
+	function verify_method($operation,$request){
+		if(isset($this->wsdl) && is_object($this->wsdl)){
+			if($this->wsdl->getOperationData($operation)){
+				return true;
+			}
+	    } elseif(isset($this->operations[$operation])){
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	* processes SOAP message received from client
+	*
+	* @param	array	$headers	The HTTP headers
+	* @param	string	$data		unprocessed request data from client
+	* @return	mixed	value of the message, decoded into a PHP type
+	* @access   private
+	*/
+    function parseRequest($headers, $data) {
+		$this->debug('Entering parseRequest() for data of length ' . strlen($data) . ' and type ' . $headers['content-type']);
+		if (!strstr($headers['content-type'], 'text/xml')) {
+			$this->setError('Request not of type text/xml');
+			return false;
+		}
+		if (strpos($headers['content-type'], '=')) {
+			$enc = str_replace('"', '', substr(strstr($headers["content-type"], '='), 1));
+			$this->debug('Got response encoding: ' . $enc);
+			if(eregi('^(ISO-8859-1|US-ASCII|UTF-8)$',$enc)){
+				$this->xml_encoding = strtoupper($enc);
+			} else {
+				$this->xml_encoding = 'US-ASCII';
+			}
+		} else {
+			// should be US-ASCII for HTTP 1.0 or ISO-8859-1 for HTTP 1.1
+			$this->xml_encoding = 'ISO-8859-1';
+		}
+		$this->debug('Use encoding: ' . $this->xml_encoding . ' when creating soap_parser');
+		// parse response, get soap parser obj
+		$parser = new soap_parser($data,$this->xml_encoding,'',$this->decode_utf8);
+		// parser debug
+		$this->debug("parser debug: \n".$parser->getDebug());
+		// if fault occurred during message parsing
+		if($err = $parser->getError()){
+			$this->result = 'fault: error in msg parsing: '.$err;
+			$this->fault('Client',"error in msg parsing:\n".$err);
+		// else successfully parsed request into soapval object
+		} else {
+			// get/set methodname
+			$this->methodURI = $parser->root_struct_namespace;
+			$this->methodname = $parser->root_struct_name;
+			$this->debug('methodname: '.$this->methodname.' methodURI: '.$this->methodURI);
+			$this->debug('calling parser->get_response()');
+			$this->methodparams = $parser->get_response();
+			// get SOAP headers
+			$this->requestHeaders = $parser->getHeaders();
+            // add document for doclit support
+            $this->document = $parser->document;
+		}
+	 }
+
+	/**
+	* gets the HTTP body for the current response.
+	*
+	* @param string $soapmsg The SOAP payload
+	* @return string The HTTP body, which includes the SOAP payload
+	* @access private
+	*/
+	function getHTTPBody($soapmsg) {
+		return $soapmsg;
+	}
+	
+	/**
+	* gets the HTTP content type for the current response.
+	*
+	* Note: getHTTPBody must be called before this.
+	*
+	* @return string the HTTP content type for the current response.
+	* @access private
+	*/
+	function getHTTPContentType() {
+		return 'text/xml';
+	}
+	
+	/**
+	* gets the HTTP content type charset for the current response.
+	* returns false for non-text content types.
+	*
+	* Note: getHTTPBody must be called before this.
+	*
+	* @return string the HTTP content type charset for the current response.
+	* @access private
+	*/
+	function getHTTPContentTypeCharset() {
+		return $this->soap_defencoding;
+	}
+
+	/**
+	* add a method to the dispatch map (this has been replaced by the register method)
+	*
+	* @param    string $methodname
+	* @param    string $in array of input values
+	* @param    string $out array of output values
+	* @access   public
+	* @deprecated
+	*/
+	function add_to_map($methodname,$in,$out){
+			$this->operations[$methodname] = array('name' => $methodname,'in' => $in,'out' => $out);
+	}
+
+	/**
+	* register a service function with the server
+	*
+	* @param    string $name the name of the PHP function, class.method or class..method
+	* @param    array $in assoc array of input values: key = param name, value = param type
+	* @param    array $out assoc array of output values: key = param name, value = param type
+	* @param	mixed $namespace the element namespace for the method or false
+	* @param	mixed $soapaction the soapaction for the method or false
+	* @param	mixed $style optional (rpc|document) or false Note: when 'document' is specified, parameter and return wrappers are created for you automatically
+	* @param	mixed $use optional (encoded|literal) or false
+	* @param	string $documentation optional Description to include in WSDL
+	* @param	string $encodingStyle optional (usually 'http://schemas.xmlsoap.org/soap/encoding/' for encoded)
+	* @access   public
+	*/
+	function register($name,$in=array(),$out=array(),$namespace=false,$soapaction=false,$style=false,$use=false,$documentation='',$encodingStyle=''){
+		global $HTTP_SERVER_VARS;
+
+		if($this->externalWSDLURL){
+			die('You cannot bind to an external WSDL file, and register methods outside of it! Please choose either WSDL or no WSDL.');
+		}
+		if (! $name) {
+			die('You must specify a name when you register an operation');
+		}
+		if (!is_array($in)) {
+			die('You must provide an array for operation inputs');
+		}
+		if (!is_array($out)) {
+			die('You must provide an array for operation outputs');
+		}
+		if(false == $namespace) {
+		}
+		if(false == $soapaction) {
+			if (isset($_SERVER)) {
+				$SERVER_NAME = $_SERVER['SERVER_NAME'];
+				$SCRIPT_NAME = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME'];
+			} elseif (isset($HTTP_SERVER_VARS)) {
+				$SERVER_NAME = $HTTP_SERVER_VARS['SERVER_NAME'];
+				$SCRIPT_NAME = isset($HTTP_SERVER_VARS['PHP_SELF']) ? $HTTP_SERVER_VARS['PHP_SELF'] : $HTTP_SERVER_VARS['SCRIPT_NAME'];
+			} else {
+				$this->setError("Neither _SERVER nor HTTP_SERVER_VARS is available");
+			}
+			$soapaction = "http://$SERVER_NAME$SCRIPT_NAME/$name";
+		}
+		if(false == $style) {
+			$style = "rpc";
+		}
+		if(false == $use) {
+			$use = "encoded";
+		}
+		if ($use == 'encoded' && $encodingStyle = '') {
+			$encodingStyle = 'http://schemas.xmlsoap.org/soap/encoding/';
+		}
+
+		$this->operations[$name] = array(
+	    'name' => $name,
+	    'in' => $in,
+	    'out' => $out,
+	    'namespace' => $namespace,
+	    'soapaction' => $soapaction,
+	    'style' => $style);
+        if($this->wsdl){
+        	$this->wsdl->addOperation($name,$in,$out,$namespace,$soapaction,$style,$use,$documentation,$encodingStyle);
+	    }
+		return true;
+	}
+
+	/**
+	* Specify a fault to be returned to the client.
+	* This also acts as a flag to the server that a fault has occured.
+	*
+	* @param	string $faultcode
+	* @param	string $faultstring
+	* @param	string $faultactor
+	* @param	string $faultdetail
+	* @access   public
+	*/
+	function fault($faultcode,$faultstring,$faultactor='',$faultdetail=''){
+		if ($faultdetail == '' && $this->debug_flag) {
+			$faultdetail = $this->getDebug();
+		}
+		$this->fault = new soap_fault($faultcode,$faultactor,$faultstring,$faultdetail);
+		$this->fault->soap_defencoding = $this->soap_defencoding;
+	}
+
+    /**
+    * Sets up wsdl object.
+    * Acts as a flag to enable internal WSDL generation
+    *
+    * @param string $serviceName, name of the service
+    * @param mixed $namespace optional 'tns' service namespace or false
+    * @param mixed $endpoint optional URL of service endpoint or false
+    * @param string $style optional (rpc|document) WSDL style (also specified by operation)
+    * @param string $transport optional SOAP transport
+    * @param mixed $schemaTargetNamespace optional 'types' targetNamespace for service schema or false
+    */
+    function configureWSDL($serviceName,$namespace = false,$endpoint = false,$style='rpc', $transport = 'http://schemas.xmlsoap.org/soap/http', $schemaTargetNamespace = false)
+    {
+    	global $HTTP_SERVER_VARS;
+
+		if (isset($_SERVER)) {
+			$SERVER_NAME = $_SERVER['SERVER_NAME'];
+			$SERVER_PORT = $_SERVER['SERVER_PORT'];
+			$SCRIPT_NAME = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME'];
+			$HTTPS = $_SERVER['HTTPS'];
+		} elseif (isset($HTTP_SERVER_VARS)) {
+			$SERVER_NAME = $HTTP_SERVER_VARS['SERVER_NAME'];
+			$SERVER_PORT = $HTTP_SERVER_VARS['SERVER_PORT'];
+			$SCRIPT_NAME = isset($HTTP_SERVER_VARS['PHP_SELF']) ? $HTTP_SERVER_VARS['PHP_SELF'] : $HTTP_SERVER_VARS['SCRIPT_NAME'];
+			$HTTPS = $HTTP_SERVER_VARS['HTTPS'];
+		} else {
+			$this->setError("Neither _SERVER nor HTTP_SERVER_VARS is available");
+		}
+		if ($SERVER_PORT == 80) {
+			$SERVER_PORT = '';
+		} else {
+			$SERVER_PORT = ':' . $SERVER_PORT;
+		}
+        if(false == $namespace) {
+            $namespace = "http://$SERVER_NAME/soap/$serviceName";
+        }
+        
+        if(false == $endpoint) {
+        	if ($HTTPS == '1' || $HTTPS == 'on') {
+        		$SCHEME = 'https';
+        	} else {
+        		$SCHEME = 'http';
+        	}
+            $endpoint = "$SCHEME://$SERVER_NAME$SERVER_PORT$SCRIPT_NAME";
+        }
+        
+        if(false == $schemaTargetNamespace) {
+            $schemaTargetNamespace = $namespace;
+        }
+        
+		$this->wsdl = new wsdl;
+		$this->wsdl->serviceName = $serviceName;
+        $this->wsdl->endpoint = $endpoint;
+		$this->wsdl->namespaces['tns'] = $namespace;
+		$this->wsdl->namespaces['soap'] = 'http://schemas.xmlsoap.org/wsdl/soap/';
+		$this->wsdl->namespaces['wsdl'] = 'http://schemas.xmlsoap.org/wsdl/';
+		if ($schemaTargetNamespace != $namespace) {
+			$this->wsdl->namespaces['types'] = $schemaTargetNamespace;
+		}
+        $this->wsdl->schemas[$schemaTargetNamespace][0] = new xmlschema('', '', $this->wsdl->namespaces);
+        $this->wsdl->schemas[$schemaTargetNamespace][0]->schemaTargetNamespace = $schemaTargetNamespace;
+        $this->wsdl->schemas[$schemaTargetNamespace][0]->imports['http://schemas.xmlsoap.org/soap/encoding/'][0] = array('location' => '', 'loaded' => true);
+        $this->wsdl->schemas[$schemaTargetNamespace][0]->imports['http://schemas.xmlsoap.org/wsdl/'][0] = array('location' => '', 'loaded' => true);
+        $this->wsdl->bindings[$serviceName.'Binding'] = array(
+        	'name'=>$serviceName.'Binding',
+            'style'=>$style,
+            'transport'=>$transport,
+            'portType'=>$serviceName.'PortType');
+        $this->wsdl->ports[$serviceName.'Port'] = array(
+        	'binding'=>$serviceName.'Binding',
+            'location'=>$endpoint,
+            'bindingType'=>'http://schemas.xmlsoap.org/wsdl/soap/');
+    }
+}
+
+
+
+
+?>
\ No newline at end of file