PHP - erweitern SoapClient, um SWA (SOAP mit Anhang) zu behandeln

Question

Ich versuche, SWA-Antworten von einem Java-SOAP-Dienst zu behandeln. Bei dieser SWA-Antwort handelt es sich um binäre Anhänge, die am Ende der XML-Datei zusammen mit einigen MIME-Headern angehängt werden. Ich kann WSO2 nicht für Abhängigkeitsbeschränkungen verwenden.

Jede Hilfe wäre sehr willkommen!

// Input 

------=_Part_42_539586119.1332526191981 
Content-Type: text/xml; charset=UTF-8 
Content-Transfer-Encoding: binary 
Content-Id: <03B4708A9544C182C43E51D9ADA1E456> 

<?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Body> ... TRUNCATED XML SOAP RESPONSE ... </soapenv:Body></soapenv:Envelope> 

------=_Part_42_539586119.1332526191981 
Content-Type: image/png 
Content-Transfer-Encoding: binary 
Content-Id: <D637B1257E3E5EEA06AF0E45494F8448> 

BINARY DATA GOES HERE 


// End of input 

// Script, um die Antwort zu spalten + zurückkehren StdObj ist wie der übergeordneten Klasse Soapclient + tun etwas mit den Dateien

namespace Project; 
class SoapClient extends \SoapClient 
{ 
    public function __call ($function_name, $arguments) 
    { 
     // have the parent do a soap call, catch the lastResponse() if an error 
     // occurred (eg has an attachment) and parse it out. 
     try { 
      $r = parent::__call($function_name, $arguments); 
      return $r; 
     } catch (\Exception $e) { 
      // Assumption: When this is sent, it means that a file is being sent 
      // because SimpleXML can't process it. 
      if ($e->getMessage() == "looks like we got no XML document") { 
       $response = parent::__getLastResponse(); 
       $partString = "/(------=_[a-zA-Z0-9_\\.]+)/"; 
       $outputArr = preg_split($partString, $response); 
       // $outputAtt[0] -- empty and is the first MIME Part Header 
       // $outputArr[1] -- Mime Header + XML (The SOAP Response) 
       // $outputArr[n+1] -- additional files w/ MIME headers 
       if (array_key_exists(1, $outputArr)) { 
        // remove the first 5 lines (4 MIME Header lines) + 1 Blank 
        // line 
        $data = implode("\n", 
        array_slice(explode("\n", $outputArr[1]), 5)); 

        /// Simple XML Object ... appears to be an empty SimpleXMLElement though ... >:-(
        $xml = simplexml_load_string($data, null, null, "http://schemas.xmlsoap.org/soap/envelope/"); 




       } else { 
        // OK Maybe this doesn't actually contain the XML... throw 
        // the original exception. 
        throw new \SoapFault($e->getMessage(), $e->getCode(), 
        $e->getPrevious()); 
       } 
      } else { 
       throw new \SoapFault($e->getMessage(), $e->getCode(), 
       $e->getPrevious()); 
      } 
     } 
    } 
} 

Answer 1

Verwenden Sie ein MIME parser dafür. Es ist ziemlich einfach von dort:

require_once('MimeMailParser.class.php'); 

class SwADownloadSoapClient extends SoapClient 
{ 
    const ATTACHMENT_DIR = '/path/to/saved/attachments/'; 

    public function __doRequest(
     $request, $location, $action, $version, $one_way=0 
    ) { 
     // Issue the SOAP request as SoapClient would normall 
     $sResult = parent::__doRequest(
           $request, $location, $action, $version, $one_way); 

     // Handle and parse MIME-encoded messages 
     // @note We're not doing much inspection 
     //  of the XML payload against the attachments ATM 
     //  so not sure how greatly this lives up to the spec 
     $sResult = $this->_parseMimeMessage($sResult); 

     $oParser = new MimeMailParser(); 
     $oParser->setText($sResult); 

     // Save the attachments 
     $aAttachments = $oParser->getAttachments(); 
     foreach($aAttachments as $oAttachment) { 
      $sFile = $oAttachment->filename; 
      if($rFp = fopen(self::ATTACHMENT_DIR . $sFile, 'w')) { 
       while($sBytes = $attachment->read()) 
        fwrite($rFp, $sBytes); 
       fclose($rFp); 
      } 
     } 
    } 
} 

Wenn Sie mehr wollen richtig the spec zu implementieren, müssen Sie die MIME-Anhänge an den SOAP-XML übereinstimmen.