forked from extern/egroupware
445 lines
14 KiB
PHP
445 lines
14 KiB
PHP
<?php
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// SOAP server class
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// for example usage, see the test_server.php file.
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/* changelog:
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2001-07-05
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- detection of character encoding in Content-Type header. server
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will now call the soap_parser object with the specified encoding
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- server will now return the Content-Type header with the sender's encoding type specified
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must still learn more bout encoding, and figure out what i have to do to be able to
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make sure that my response is *actually* encoded correctly
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2001-07-21
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- force proper error reporting for windows compatibility
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2001-07-27
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- get_all_headers() check for windows compatibility
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*/
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/* $Id$ */
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// make errors handle properly in windows
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error_reporting(2039);
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class soap_server
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{
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function soap_server()
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{
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// create empty dispatch map
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$this->dispatch_map = array();
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$this->debug_flag = True;
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$this->debug_str = '';
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$this->headers = '';
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$this->request = '';
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$this->xml_encoding = 'UTF-8';
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$this->fault = false;
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$this->fault_code = '';
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$this->fault_str = '';
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$this->fault_actor = '';
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// for logging interop results to db
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$this->result = 'successful';
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}
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// parses request and posts response
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function service($data)
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{
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// $response is a soap_msg object
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$response = $this->parse_request($data);
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$this->debug("parsed request and got an object of this class '".get_class($response)."'");
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$this->debug("server sending...");
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// pass along the debug string
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if($this->debug_flag)
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{
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$response->debug($this->debug_str);
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}
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$payload = $response->serialize();
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// print headers
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if($this->fault)
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{
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$header[] = "HTTP/1.0 500 Internal Server Error\r\n";
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}
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else
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{
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$header[] = "HTTP/1.0 200 OK\r\n";
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$header[] = "Status: 200\r\n";
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}
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$header[] = "Server: SOAPx4 Server v0.344359s\r\n";
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$header[] = "Connection: Close\r\n";
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$header[] = "Content-Type: text/xml; charset=$this->xml_encoding\r\n";
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$header[] = "Content-Length: ".strlen($payload)."\r\n\r\n";
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@reset($header);
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while(list($null,$hdr) = @each($header))
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/* foreach($header as $hdr) */
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{
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header($hdr);
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}
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print $payload;
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}
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function parse_request($data='')
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{
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global $HTTP_SERVER_VARS;
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$this->debug('entering parse_request() on '.date('H:i Y-m-d'));
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$request_uri = $HTTP_SERVER_VARS['REQUEST_URI'];
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$this->debug("request uri: $request_uri");
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// get headers
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if(function_exists('getallheaders'))
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{
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$this->headers = getallheaders();
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while(list($k,$v) = @each($this->headers))
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/* foreach($this->headers as $k=>$v) */
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{
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$dump .= "$k: $v\r\n";
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}
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// get SOAPAction header
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if($this->headers['SOAPAction'])
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{
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$this->SOAPAction = str_replace('"','',$this->headers['SOAPAction']);
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$this->service = $this->SOAPAction;
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}
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// get character encoding
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if(ereg("=",$this->headers['Content-Type']))
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{
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$this->xml_encoding = str_replace("\"","",substr(strstr($this->headers["Content-Type"],"="),1));
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}
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elseif(ereg("^text/xml",$this->headers['Content-Type']))
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{
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$this->xml_encoding = 'us-ascii';
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}
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$this->debug("got encoding: $this->xml_encoding");
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}
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$this->request = $dump."\r\n\r\n".$data;
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// parse response, get soap parser obj
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$parser = CreateObject('phpgwapi.soap_parser',$data);
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// get/set methodname
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$this->methodname = $parser->root_struct_name;
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$this->debug("method name: $this->methodname");
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// does method exist?
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if(function_exists($this->methodname))
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{
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$this->debug("method '$this->methodname' exists");
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}
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else
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{
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/* phpgroupware customization - createobject based on methodname */
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list($app,$class,$method) = explode('.',$this->methodname);
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$obj = CreateObject(sprintf('%s.%s',$app,$class));
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/*
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// "method not found" fault here
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$this->debug("method '$obj->method' not found!");
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$this->result = "fault: method not found";
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$this->make_fault("Server","method '$obj->method' not defined in service '$this->service'");
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return $this->fault();
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*/
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}
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// if fault occurred during message parsing
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if($parser->fault())
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{
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// parser debug
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$this->debug($parser->debug_str);
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$this->result = 'fault: error in msg parsing or eval';
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$this->make_fault("Server","error in msg parsing or eval:\n".$parser->get_response());
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// return soapresp
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return $this->fault();
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// else successfully parsed request into soapval object
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}
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else
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{
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// get eval_str
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$this->debug('calling parser->get_response()');
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// evaluate it, getting back a soapval object
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if(!$request_val = $parser->get_response())
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{
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return $this->fault();
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}
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// parser debug
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$this->debug($parser->debug_str);
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if(get_class($request_val) == 'soapval')
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{
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if (is_object($obj))
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{
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/* Add the function to the server map */
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$in = "array('" . implode("','",$obj->soap_functions[$method]['in']) . "')";
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$out = "array('" . implode("','",$obj->soap_functions[$method]['out']) . "')";
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$evalmap = "\$this->add_to_map(\$this->methodname,$in,$out);";
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eval($evalmap);
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}
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/* verify that soapval objects in request match the methods signature */
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if($this->verify_method($request_val))
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{
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$this->debug("request data - name: $request_val->name, type: $request_val->type, value: $request_val->value");
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if($this->input_value)
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{
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/* decode the soapval object, and pass resulting values to the requested method */
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if(!$request_data = $request_val->decode())
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{
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$this->make_fault("Server","Unable to decode response from soapval object into native php type.");
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return $this->fault();
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}
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$this->debug("request data: $request_data");
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}
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/* if there are return values */
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if($this->return_type = $this->get_return_type())
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{
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$this->debug("got return type: '$this->return_type'");
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/* if there are parameters to pass */
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if($request_data)
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{
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if (is_object($obj))
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{
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$code = "\$method_response = call_user_method(\$method,\$obj,";
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$this->debug("about to call method '$class -> $method'");
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}
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else
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{
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$code = "\$method_response = call_user_func(\$this->methodname,";
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$this->debug("about to call method '$this->methodname'");
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}
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/* call method with parameters */
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$this->debug("about to call method '$class -> $method'");
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while(list($x,$y) = each($request_data))
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{
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$code .= "\$request_data[$x]" . ',';
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}
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$code = substr($code,0,-1) .');';
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if(eval($code))
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{
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if (is_object($obj))
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{
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$this->make_fault("Server","Method call failed for '$obj->method' with params: ".join(",",$request_data));
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}
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else
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{
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$this->make_fault("Server","Method call failed for '$this->methodname' with params: ".join(",",$request_data));
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}
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return $this->fault();
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}
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}
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else
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{
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/* call method w/ no parameters */
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if (is_object($obj))
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{
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$this->debug("about to call method '$obj->method'");
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if(!$method_response = call_user_method($method,$obj))
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{
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$this->make_fault("Server","Method call failed for '$obj->method' with no params");
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return $this->fault();
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}
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}
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else
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{
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$this->debug("about to call method '$this->methodname'");
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if(!$method_response = call_user_func($this->methodname))
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{
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$this->make_fault("Server","Method call failed for '$this->methodname' with no params");
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return $this->fault();
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}
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}
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}
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/* no return values */
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}
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else
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{
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if($request_data)
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{
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/* call method with parameters */
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$code = "\$method_response = call_user_method(\$method,\$obj,";
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while(list($x,$y) = each($request_data))
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{
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$code .= "\$request_data[$x]" . ',';
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}
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$code = substr($code,0,-1) .');';
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$this->debug("about to call method '$obj->method'");
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eval($code);
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}
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else
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{
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/* call method w/ no parameters */
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$this->debug("about to call method '$obj->method'");
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call_user_method($method,$obj);
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}
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}
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/* return fault */
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if(get_class($method_response) == 'soapmsg')
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{
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if(eregi('fault',$method_response->value->name))
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{
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$this->fault = True;
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}
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$return_msg = $method_response;
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}
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else
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{
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/* return soapval object */
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if(get_class($method_response) == 'soapval')
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{
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$return_val = $method_response;
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/* create soap_val object w/ return values from method, use method signature to determine type */
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}
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else
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{
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$return_val = CreateObject('phpgwapi.soapval',$method,$this->return_type,$method_response);
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}
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$this->debug($return_val->debug_str);
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/* response object is a soap_msg object */
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$return_msg = CreateObject('phpgwapi.soapmsg',$method.'Response',array($return_val),$this->service);
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}
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if($this->debug_flag)
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{
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$return_msg->debug_flag = true;
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}
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$this->result = 'successful';
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return $return_msg;
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}
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else
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{
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// debug
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$this->debug("ERROR: request not verified against method signature");
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$this->result = "fault: request failed validation against method signature";
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// return soapresp
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return $this->fault();
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}
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}
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else
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{
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// debug
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$this->debug("ERROR: parser did not return soapval object: $request_val ".get_class($request_val));
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$this->result = "fault: parser did not return soapval object: $request_val";
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// return fault
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$this->make_fault('Server',"parser did not return soapval object: $request_val");
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return $this->fault();
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}
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}
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}
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function verify_method($request)
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{
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//return true;
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$this->debug('entered verify_method() w/ request name: '.$request->name);
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$params = $request->value;
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// if there are input parameters required...
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if($sig = $this->dispatch_map[$this->methodname]["in"])
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{
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$this->input_value = count($sig);
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if(is_array($params))
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{
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$this->debug('entered verify_method() with '.count($params).' parameters');
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@reset($params);
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while(list($null,$v) = @each($params))
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/* foreach($params as $v) */
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{
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$this->debug("param '$v->name' of type '$v->type'");
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}
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// validate the number of parameters
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if(count($params) == count($sig))
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{
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$this->debug("got correct number of parameters: ".count($sig));
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// make array of param types
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@reset($params);
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while(list($null,$param) = @each($params))
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/* foreach($params as $param) */
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{
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$p[] = strtolower($param->type);
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}
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// validate each param's type
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for($i=0; $i < count($p); $i++)
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{
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// type not match
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if(strtolower($sig[$i]) != strtolower($p[$i]))
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{
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$this->debug("mismatched parameter types: $sig[$i] != $p[$i]");
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$this->make_fault('Client',"soap request contained mismatching parameters of name $v->name had type $p[$i], which did not match signature's type: $sig[$i]");
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return false;
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}
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$this->debug("parameter type match: $sig[$i] = $p[$i]");
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}
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return true;
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// oops, wrong number of paramss
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}
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else
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{
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$this->debug('oops, wrong number of parameter!');
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$this->make_fault('Client',"soap request contained incorrect number of parameters. method '$this->methodname' required ".count($sig)." and request provided ".count($params));
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return false;
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}
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// oops, no params...
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}
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else
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{
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$this->debug("oops, no parameters sent! Method '$this->methodname' requires ".count($sig)." input parameters!");
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$this->make_fault('Client',"soap request contained incorrect number of parameters. method '$this->methodname' requires ".count($sig)." parameters, and request provided none");
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return false;
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}
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// no params
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}
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elseif( (count($params)==0) && (count($sig) <= 1) )
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{
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$this->input_values = 0;
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return true;
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}
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else
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{
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//$this->debug("well, request passed parameters to a method that requires none?");
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//$this->make_fault("Client","method '$this->methodname' requires no parameters. The request passed in ".count($params).": ".@implode(" param: ",$params) );
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return true;
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}
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}
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// get string return type from dispatch map
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function get_return_type()
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{
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if(count($this->dispatch_map[$this->methodname]['out']) >= 1)
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{
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$type = array_shift($this->dispatch_map[$this->methodname]['out']);
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$this->debug("got return type from dispatch map: '$type'");
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return $type;
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}
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return false;
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}
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// dbg
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function debug($string)
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{
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if($this->debug_flag)
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{
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$this->debug_str .= "$string\n";
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}
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}
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// add a method to the dispatch map
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function add_to_map($methodname,$in,$out)
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{
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$this->dispatch_map[$methodname]['in'] = $in;
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$this->dispatch_map[$methodname]['out'] = $out;
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}
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// set up a fault
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function fault()
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{
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return CreateObject('phpgwapi.soapmsg',
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'Fault',
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array(
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'faultcode' => $this->fault_code,
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'faultstring' => $this->fault_str,
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'faultactor' => $this->fault_actor,
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'faultdetail' => $this->fault_detail.$this->debug_str
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),
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'http://schemas.xmlsoap.org/soap/envelope/'
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);
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}
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function make_fault($fault_code,$fault_string)
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{
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$this->fault_code = $fault_code;
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$this->fault_str = $fault_string;
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$this->fault = true;
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}
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}
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?>
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