| 1 | <?php |
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| 2 | /*************************************************************************** |
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| 3 | * Expresso Livre * |
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| 4 | * http://www.expressolivre.org * |
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| 5 | * -------------------------------------------- * |
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| 6 | * This program is free software; you can redistribute it and/or modify it * |
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| 7 | * under the terms of the GNU General Public License as published by the * |
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| 8 | * Free Software Foundation; either version 2 of the License, or (at your * |
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| 9 | * option) any later version. * |
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| 10 | \**************************************************************************/ |
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| 11 | |
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| 12 | // SOAP server class |
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| 13 | |
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| 14 | // for example usage, see the test_server.php file. |
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| 15 | |
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| 16 | class soap_server |
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| 17 | { |
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| 18 | function soap_server($data='',$serviceNow=False) |
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| 19 | { |
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| 20 | // create empty dispatch map |
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| 21 | $this->dispatch_map = array(); |
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| 22 | $this->debug_flag = True; |
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| 23 | $this->debug_str = ''; |
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| 24 | $this->headers = ''; |
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| 25 | $this->request = ''; |
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| 26 | $this->result = 'successful'; |
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| 27 | $this->fault = false; |
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| 28 | $this->fault_code = ''; |
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| 29 | $this->fault_str = ''; |
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| 30 | $this->fault_actor = ''; |
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| 31 | |
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| 32 | if($serviceNow == 1) |
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| 33 | { |
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| 34 | $this->service($data); |
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| 35 | } |
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| 36 | } |
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| 37 | |
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| 38 | // parses request and posts response |
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| 39 | function service($data) |
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| 40 | { |
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| 41 | // $response is a soap_msg object |
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| 42 | $response = $this->parseRequest($data); |
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| 43 | $this->debug("parsed request and got an object of this class '".get_class($response)."'"); |
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| 44 | $this->debug("server sending..."); |
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| 45 | // pass along the debug string |
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| 46 | if($this->debug_flag) |
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| 47 | { |
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| 48 | $response->debug($this->debug_str); |
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| 49 | } |
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| 50 | $payload = $response->serialize(); |
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| 51 | // print headers |
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| 52 | if($this->fault) |
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| 53 | { |
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| 54 | $header[] = "HTTP/1.0 500 Internal Server Error\r\n"; |
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| 55 | } |
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| 56 | else |
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| 57 | { |
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| 58 | $header[] = "HTTP/1.0 200 OK\r\n"; |
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| 59 | $header[] = "Status: 200\r\n"; |
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| 60 | } |
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| 61 | $header[] = "Server: SOAPx4 Server v0.344359s\r\n"; |
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| 62 | $header[] = "Connection: Close\r\n"; |
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| 63 | $header[] = "Content-Type: text/xml; charset=UTF-8\r\n"; |
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| 64 | $header[] = "Content-Length: ".strlen($payload)."\r\n\r\n"; |
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| 65 | reset($header); |
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| 66 | foreach($header as $hdr) |
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| 67 | { |
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| 68 | header($hdr); |
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| 69 | } |
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| 70 | print $payload; |
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| 71 | } |
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| 72 | |
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| 73 | function parseRequest($data="") |
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| 74 | { |
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| 75 | global $HTTP_SERVER_VARS; |
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| 76 | |
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| 77 | $this->debug("entering parseRequest() on ".date("H:i Y-m-d")); |
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| 78 | $request_uri = $HTTP_SERVER_VARS["REQUEST_URI"]; |
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| 79 | $this->debug("request uri: $request_uri"); |
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| 80 | // get headers |
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| 81 | $headers_array = getallheaders(); |
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| 82 | foreach($headers_array as $k=>$v) |
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| 83 | { |
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| 84 | $dump .= "$k: $v\r\n"; |
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| 85 | } |
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| 86 | $dump .= "\r\n\r\n".$data; |
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| 87 | $this->headers = $headers_array; |
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| 88 | $this->request = $dump; |
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| 89 | |
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| 90 | // get SOAPAction header -> methodname |
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| 91 | if($headers_array["SOAPAction"]) |
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| 92 | { |
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| 93 | $action = str_replace('"','',$headers_array["SOAPAction"]); |
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| 94 | if(preg_match('/^urn:/',$action)) |
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| 95 | { |
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| 96 | $this->service = substr($action,4); |
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| 97 | } |
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| 98 | elseif(preg_match('/.php/',$action)) |
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| 99 | { |
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| 100 | $this->service = preg_replace('/"|\//','',substr(strrchr($action,".php"),4,strlen(strrchr($action,"/")))); |
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| 101 | } |
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| 102 | $this->debug("got service: $this->service"); |
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| 103 | } |
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| 104 | else |
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| 105 | { |
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| 106 | // throw a fault if no soapaction |
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| 107 | $this->debug("ERROR: no SOAPAction header found"); |
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| 108 | } |
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| 109 | // NOTE:::: throw a fault for no/bad soapaction here? |
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| 110 | |
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| 111 | // parse response, get soap parser obj |
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| 112 | $parser = CreateObject('phpgwapi.soap_parser',$data); |
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| 113 | // get/set methodname |
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| 114 | $this->methodname = $parser->root_struct_name; |
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| 115 | $this->debug("method name: $this->methodname"); |
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| 116 | |
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| 117 | // does method exist? |
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| 118 | $test = preg_replace('/\./','_',$this->methodname); |
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| 119 | if(function_exists($test)) |
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| 120 | { |
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| 121 | $method = $this->methodname = $test; |
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| 122 | $this->debug("method '$this->methodname' exists"); |
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| 123 | } |
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| 124 | else |
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| 125 | { |
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| 126 | /* egroupware customization - createobject based on methodname */ |
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| 127 | list($app,$class,$method) = explode('.',$this->methodname); |
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| 128 | if(preg_match('/^service/',$app)) |
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| 129 | { |
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| 130 | $args = $class; |
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| 131 | $class = 'service'; |
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| 132 | $app = 'phpgwapi'; |
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| 133 | $obj = CreateObject(sprintf('%s.%s',$app,$class),$args); |
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| 134 | unset($args); |
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| 135 | } |
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| 136 | else |
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| 137 | { |
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| 138 | $obj = CreateObject(sprintf('%s.%s',$app,$class)); |
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| 139 | } |
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| 140 | $this->debug('app: ' . $app . ', class: ' . $class . ', method: ' . $method); |
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| 141 | /* |
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| 142 | // "method not found" fault here |
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| 143 | $this->debug("method '$obj->method' not found!"); |
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| 144 | $this->result = "fault: method not found"; |
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| 145 | $this->make_fault("Server","method '$obj->method' not defined in service '$this->service'"); |
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| 146 | return $this->fault(); |
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| 147 | */ |
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| 148 | } |
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| 149 | |
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| 150 | // if fault occurred during message parsing |
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| 151 | if($parser->fault()) |
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| 152 | { |
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| 153 | // parser debug |
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| 154 | $this->debug($parser->debug_str); |
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| 155 | $this->result = "fault: error in msg parsing or eval"; |
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| 156 | $this->make_fault("Server","error in msg parsing or eval:\n".$parser->get_response()); |
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| 157 | // return soapresp |
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| 158 | return $this->fault(); |
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| 159 | // else successfully parsed request into soapval object |
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| 160 | } |
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| 161 | else |
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| 162 | { |
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| 163 | // get eval_str |
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| 164 | $this->debug("calling parser->get_response()"); |
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| 165 | // evaluate it, getting back a soapval object |
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| 166 | if(!$request_val = $parser->get_response()) |
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| 167 | { |
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| 168 | return $this->fault(); |
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| 169 | } |
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| 170 | // parser debug |
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| 171 | $this->debug($parser->debug_str); |
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| 172 | if(get_class($request_val) == "soapval") |
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| 173 | { |
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| 174 | if (is_object($obj)) |
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| 175 | { |
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| 176 | /* Add the function to the server map */ |
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| 177 | $in = "array('" . implode("','",$obj->soap_functions[$method]['in']) . "')"; |
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| 178 | $out = "array('" . implode("','",$obj->soap_functions[$method]['out']) . "')"; |
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| 179 | $evalmap = "\$this->add_to_map(\$this->methodname,$in,$out);"; |
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| 180 | eval($evalmap); |
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| 181 | } |
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| 182 | /* verify that soapval objects in request match the methods signature */ |
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| 183 | if($this->verify_method($request_val)) |
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| 184 | { |
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| 185 | $this->debug("request data - name: $request_val->name, type: $request_val->type, value: $request_val->value"); |
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| 186 | if($this->input_value) |
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| 187 | { |
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| 188 | /* decode the soapval object, and pass resulting values to the requested method */ |
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| 189 | if(!$request_data = $request_val->decode()) |
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| 190 | { |
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| 191 | $this->make_fault("Server","Unable to decode response from soapval object into native php type."); |
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| 192 | return $this->fault(); |
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| 193 | } |
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| 194 | $this->debug("request data: $request_data"); |
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| 195 | } |
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| 196 | |
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| 197 | /* if there are return values */ |
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| 198 | if($this->return_type = $this->get_return_type()) |
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| 199 | { |
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| 200 | $this->debug("got return type: '$this->return_type'"); |
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| 201 | /* if there are parameters to pass */ |
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| 202 | if($request_data) |
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| 203 | { |
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| 204 | if (is_object($obj)) |
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| 205 | { |
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| 206 | $code = "\$method_response = call_user_method($method,$obj,"; |
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| 207 | $this->debug("about to call object method '$class\-\>$method' with args"); |
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| 208 | } |
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| 209 | else |
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| 210 | { |
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| 211 | $code = '$method_response = ' . $this->methodname . "('"; |
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| 212 | $args = implode("','",$request_data['return']); |
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| 213 | $this->debug("about to call method '$this->methodname' with args: $args"); |
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| 214 | } |
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| 215 | /* call method with parameters */ |
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| 216 | $code .= implode("','",$request_data['return']); |
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| 217 | /* |
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| 218 | while(list($x,$y) = each($request_data)) |
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| 219 | { |
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| 220 | $code .= "\$request_data[$x]" . ','; |
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| 221 | } |
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| 222 | $code = substr($code,0,-1) .");"; |
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| 223 | */ |
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| 224 | $code .= "');"; |
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| 225 | $this->debug('CODE: ' . $code); |
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| 226 | if(eval($code)) |
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| 227 | { |
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| 228 | if (is_object($obj)) |
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| 229 | { |
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| 230 | $this->make_fault("Server","Object method call failed for '$class\-\>$method' with params: ".join(',',$request_data)); |
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| 231 | } |
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| 232 | else |
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| 233 | { |
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| 234 | $this->make_fault("Server","Method call failed for '$this->methodname' with params: ".join(',',$request_data)); |
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| 235 | } |
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| 236 | return $this->fault(); |
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| 237 | } |
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| 238 | $this->debug('Response: ' . $method_response); |
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| 239 | // _debug_array($method_response); |
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| 240 | } |
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| 241 | else |
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| 242 | { |
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| 243 | /* call method w/ no parameters */ |
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| 244 | if (is_object($obj)) |
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| 245 | { |
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| 246 | $this->debug("about to call object method '$obj\-\>$method'"); |
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| 247 | if(!$method_response = call_user_method($method,$obj)) |
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| 248 | { |
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| 249 | $this->make_fault("Server","Method call failed for '$obj->method' with no params"); |
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| 250 | return $this->fault(); |
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| 251 | } |
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| 252 | } |
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| 253 | else |
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| 254 | { |
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| 255 | $this->debug("about to call method '$this->methodname'"); |
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| 256 | if(!$method_response = call_user_func($this->methodname)) |
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| 257 | { |
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| 258 | $this->make_fault("Server","Method call failed for '$this->methodname' with no params"); |
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| 259 | return $this->fault(); |
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| 260 | } |
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| 261 | } |
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| 262 | } |
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| 263 | /* no return values */ |
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| 264 | } |
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| 265 | else |
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| 266 | { |
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| 267 | if($request_data) |
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| 268 | { |
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| 269 | /* call method with parameters */ |
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| 270 | $code = "\$method_response = call_user_method(\$method,\$obj,"; |
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| 271 | while(list($x,$y) = each($request_data)) |
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| 272 | { |
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| 273 | $code .= "\$request_data[$x]" . ','; |
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| 274 | } |
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| 275 | $code = substr($code,0,-1) .");"; |
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| 276 | $this->debug("about to call object method '$obj\-\>$method'"); |
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| 277 | eval($code); |
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| 278 | } |
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| 279 | else |
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| 280 | { |
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| 281 | /* call method w/ no parameters */ |
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| 282 | if(is_object($obj)) |
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| 283 | { |
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| 284 | $this->debug("about to call object method '$obj\-\>$method'"); |
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| 285 | call_user_method($method,$obj); |
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| 286 | } |
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| 287 | else |
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| 288 | { |
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| 289 | $this->debug("about to call method '$method'"); |
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| 290 | call_user_func($method); |
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| 291 | } |
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| 292 | } |
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| 293 | } |
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| 294 | |
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| 295 | /* create soap_val object w/ return values from method, use method signature to determine type */ |
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| 296 | if(get_class($method_response) != 'soapval') |
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| 297 | { |
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| 298 | $return_val = CreateObject('phpgwapi.soapval',$method,$this->return_type,$method_response); |
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| 299 | } |
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| 300 | else |
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| 301 | { |
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| 302 | $return_val = $method_response; |
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| 303 | } |
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| 304 | $this->debug($return_val->debug_str); |
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| 305 | /* response object is a soap_msg object */ |
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| 306 | $return_msg = CreateObject('phpgwapi.soapmsg',$method.'Response',array($return_val),$this->service); |
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| 307 | if($this->debug_flag) |
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| 308 | { |
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| 309 | $return_msg->debug_flag = true; |
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| 310 | } |
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| 311 | $this->result = "successful"; |
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| 312 | return $return_msg; |
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| 313 | } |
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| 314 | else |
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| 315 | { |
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| 316 | // debug |
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| 317 | $this->debug("ERROR: request not verified against method signature"); |
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| 318 | $this->result = "fault: request failed validation against method signature"; |
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| 319 | // return soapresp |
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| 320 | return $this->fault(); |
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| 321 | } |
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| 322 | } |
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| 323 | else |
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| 324 | { |
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| 325 | // debug |
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| 326 | $this->debug("ERROR: parser did not return soapval object: $request_val ".get_class($request_val)); |
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| 327 | $this->result = "fault: parser did not return soapval object: $request_val"; |
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| 328 | // return fault |
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| 329 | $this->make_fault("Server","parser did not return soapval object: $request_val"); |
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| 330 | return $this->fault(); |
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| 331 | } |
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| 332 | } |
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| 333 | } |
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| 334 | |
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| 335 | function verify_method($request) |
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| 336 | { |
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| 337 | //return true; |
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| 338 | $this->debug("entered verify_method() w/ request name: ".$request->name); |
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| 339 | $params = $request->value; |
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| 340 | // if there are input parameters required... |
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| 341 | if($sig = $this->dispatch_map[$this->methodname]["in"]) |
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| 342 | { |
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| 343 | $this->input_value = count($sig); |
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| 344 | if(is_array($params)) |
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| 345 | { |
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| 346 | $this->debug("entered verify_method() with ".count($params)." parameters"); |
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| 347 | foreach($params as $v) |
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| 348 | { |
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| 349 | $this->debug("param '$v->name' of type '$v->type'"); |
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| 350 | } |
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| 351 | // validate the number of parameters |
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| 352 | if(count($params) == count($sig)) |
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| 353 | { |
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| 354 | $this->debug("got correct number of parameters: ".count($sig)); |
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| 355 | // make array of param types |
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| 356 | foreach($params as $param) |
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| 357 | { |
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| 358 | $p[] = strtolower($param->type); |
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| 359 | } |
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| 360 | // validate each param's type |
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| 361 | for($i=0; $i < count($p); ++$i) |
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| 362 | { |
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| 363 | // type not match |
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| 364 | if(strtolower($sig[$i]) != strtolower($p[$i])) |
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| 365 | { |
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| 366 | $this->debug("mismatched parameter types: $sig[$i] != $p[$i]"); |
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| 367 | $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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| 368 | return false; |
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| 369 | } |
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| 370 | $this->debug("parameter type match: $sig[$i] = $p[$i]"); |
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| 371 | } |
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| 372 | return true; |
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| 373 | // oops, wrong number of paramss |
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| 374 | } |
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| 375 | else |
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| 376 | { |
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| 377 | $this->debug("oops, wrong number of parameter!"); |
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| 378 | $this->make_fault("Client","soap request contained incorrect number of parameters. method '$this->methodname' required ".count($sig)." and request provided ".count($params)); |
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| 379 | return false; |
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| 380 | } |
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| 381 | // oops, no params... |
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| 382 | } |
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| 383 | else |
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| 384 | { |
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| 385 | $this->debug("oops, no parameters sent! Method '$this->methodname' requires ".count($sig)." input parameters!"); |
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| 386 | $this->make_fault("Client","soap request contained incorrect number of parameters. method '$this->methodname' requires ".count($sig)." parameters, and request provided none"); |
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| 387 | return false; |
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| 388 | } |
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| 389 | // no params |
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| 390 | } |
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| 391 | elseif( (count($params)==0) && (count($sig) <= 1) ) |
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| 392 | { |
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| 393 | $this->input_values = 0; |
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| 394 | return true; |
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| 395 | } |
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| 396 | else |
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| 397 | { |
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| 398 | //$this->debug("well, request passed parameters to a method that requires none?"); |
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| 399 | //$this->make_fault("Client","method '$this->methodname' requires no parameters. The request passed in ".count($params).": ".@implode(" param: ",$params) ); |
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| 400 | return true; |
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| 401 | } |
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| 402 | } |
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| 403 | |
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| 404 | // get string return type from dispatch map |
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| 405 | function get_return_type() |
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| 406 | { |
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| 407 | if(count($this->dispatch_map[$this->methodname]["out"]) >= 1) |
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| 408 | { |
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| 409 | $type = array_shift($this->dispatch_map[$this->methodname]["out"]); |
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| 410 | $this->debug("got return type from dispatch map: '$type'"); |
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| 411 | return $type; |
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| 412 | } |
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| 413 | return false; |
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| 414 | } |
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| 415 | |
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| 416 | // dbg |
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| 417 | function debug($string) |
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| 418 | { |
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| 419 | if($this->debug_flag) |
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| 420 | { |
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| 421 | $this->debug_str .= "$string\n"; |
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| 422 | } |
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| 423 | } |
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| 424 | |
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| 425 | // add a method to the dispatch map |
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| 426 | function add_to_map($methodname,$in,$out) |
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| 427 | { |
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| 428 | $this->dispatch_map[$methodname]["in"] = $in; |
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| 429 | $this->dispatch_map[$methodname]["out"] = $out; |
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| 430 | } |
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| 431 | |
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| 432 | // set up a fault |
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| 433 | function fault() |
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| 434 | { |
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| 435 | return CreateObject('phpgwapi.soapmsg', |
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| 436 | "Fault", |
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| 437 | array( |
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| 438 | "faultcode" => $this->fault_code, |
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| 439 | "faultstring" => $this->fault_str, |
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| 440 | "faultactor" => $this->fault_actor, |
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| 441 | "faultdetail" => $this->fault_detail.$this->debug_str |
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| 442 | ), |
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| 443 | "http://schemas.xmlphpgwapi.org/soap/envelope/" |
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| 444 | ); |
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| 445 | } |
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| 446 | |
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| 447 | function make_fault($fault_code,$fault_string) |
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| 448 | { |
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| 449 | $this->fault_code = $fault_code; |
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| 450 | $this->fault_str = $fault_string; |
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| 451 | $this->fault = true; |
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| 452 | } |
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| 453 | } |
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| 454 | ?> |
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