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Re: SOAP Client

by rob_au (Abbot)
on Apr 14, 2004 at 02:43 UTC ( #344913=note: print w/replies, xml ) Need Help??

in reply to SOAP Client

Okay, the following is the SOAP client which I mocked up to test this WSDL - Note that I have deliberately obscured your customer ID number in the example below.
#!/opt/bin/perl use SOAP::Lite +trace; my $result = SOAP::Lite ->service(' +dl') ->Encrypt('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx', 'Testing'); print $result, "\n";
Including the SOAP::Lite trace showed me that the following request was sent to the location
Accept: text/xml Accept: multipart/* Content-Length: 529 Content-Type: text/xml; charset=utf-8 SOAPAction: " +/Encrypt" <?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:SOAP-EN +C="" SOAP-ENV:encodingStyle= +"" xmlns:SOAP-ENV="http://sc" xmlns:xsi=" +MLSchema-instance" xmlns:xsd=""><SOAP +-ENV:Body><Encrypt xmlns=""><parameters>xxxxxxxxxxxxxxxxxxxxxxxxxxxxx +xxx</parameters><c-gensym4 xsi:type="xsd:string">Testing</c-gensym4>< +/Encrypt></SOAP-ENV:Body></SOAP-ENV:Envelope>
To this, the server responded:
Cache-Control: private Date: Wed, 14 Apr 2004 02:34:05 GMT Server: Microsoft-IIS/5.0 Content-Length: 984 Content-Type: text/xml; charset=utf-8 Client-Date: Wed, 14 Apr 2004 02:35:30 GMT Client-Peer: Client-Response-Num: 1 Client-SSL-Cert-Issuer: /O=VeriSign Trust Network/OU=VeriSign, Inc./OU +=VeriSign International Server CA - Class 3/ I Ref. LIABILITY LTD.(c)97 VeriSign Client-SSL-Cert-Subject: /C=US/ST=Arkansas/L=Little Rock/O=Arkansas Bl +ue Cross and Blue Shield A Mutual Insurance Company/OU=Infrastructure + Management/OU=Terms of use at (c)00/CN=secure.a Client-SSL-Cipher: RC4-MD5 Client-SSL-Warning: Peer certificate not verified X-AspNet-Version: 1.1.4322 X-Powered-By: ASP.NET <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="" +xmlns:xsi="" xmlns:xsd="http +://"> <soap:Body> <soap:Fault> <faultcode>soap:Server</faultcode> <faultstring>System.Web.Services.Protocols.SoapException: Server + was unable to process request. ---&gt; System.ArgumentNullException: + ArgumentNull_String Parameter name: g at System.Guid..ctor(String g) at ABCBS.IWD.WebServices.EncryptionService.GetCustomerKeys(String C +ustID, Int32 Timeout) in C:\Projects\Common\WebServicesSolution\WebSe +rvices\EncryptionService.asmx.vb:line 104 at ABCBS.IWD.WebServices.EncryptionService.Encrypt(String CustID, S +tring Data) in C:\Projects\Common\WebServicesSolution\WebServices\Enc +ryptionService.asmx.vb:line 50 --- End of inner exception stack trace ---</faultstring> <detail /> </soap:Fault> </soap:Body> </soap:Envelope>
It would appear that SOAP::Lite is failing to encode the customer ID parameter correctly. Whilst this doesn't answer your question as to how to solve this problem, it may provide you with some additional information in your search for an answer. Note that there are still some gaps in the WSDL implementation in SOAP::Lite and as such, you may be better off to specify the service details manually or build the body using SOAP::Data::Builder.


perl -le "print unpack'N', pack'B32', '00000000000000000000001011001110'"

Replies are listed 'Best First'.
Re: Re: SOAP Client
by Hammy (Scribe) on Apr 14, 2004 at 03:09 UTC
    Thank you very much for the detailed write up. I am going to do what you did to see what happened in translation and try a few things. Thanks for obscuring my key, it was only a demo given out to me so I can test the service. I do believe I am closer than I was before because I did not know anything about the trace prior. Again thanks for your effort and my education.
      Just as a follow-up, I continued to play with SOAP::Data::Builder to see if I could build a successful request - To this end, I have the following code:
      #!/opt/bin/perl use SOAP::Data::Builder; use SOAP::Lite +trace; my $builder = SOAP::Data::Builder->new; $builder->add_elem( 'name' => 'parameters' ); $builder->add_elem( 'name' => 'CustID', 'parent' => $builder->get_elem('parameters'), 'value' => 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ); $builder->add_elem( 'name' => 'Data', 'parent' => $builder->get_elem('parameters'), 'value' => 'Testing' ); my $result = SOAP::Lite ->service(' +dl') ->Encrypt( $builder->to_soap_data ); print $result, "\n";
      ... which produces the following well-formed request ...
      Accept: text/xml Accept: multipart/* Content-Length: 558 Content-Type: text/xml; charset=utf-8 SOAPAction: " +/Encrypt" <?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:SOAP-EN +C="" SOAP-ENV:encodingStyle= +"" xmlns:SOAP-ENV="http://sc" xmlns:xsi=" +MLSchema-instance" xmlns:xsd=""><SOAP +-ENV:Body><Encrypt xmlns=""><parameters><CustID xsi:type="xsd:string" +>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</CustID><Data xsi:type="xsd:string" +>Testing</Data></parameters></Encrypt></SOAP-ENV:Body></SOAP-ENV:Enve +lope>
      However, whilst I haven't achieved a successful result, I have been able to build a well-formed SOAP request to dispatch to the service. If you can get a copy of a successful request generated by other means, it may be worth playing with SOAP::Data::Builder further to fashion a successful perl client.


      perl -le "print unpack'N', pack'B32', '00000000000000000000001011001111'"

        Just to put to bed a mystery, I did solve this one. Well, I did not actually solve this one, but a Java programmer who wrote the service found it. Anyway here is the code.
        use SOAP::Lite; my $s = SOAP::Lite -> uri(' +ervice') ->proxy(' +ncryptionService.asmx') -> on_action(sub{sprintf '%s/%s', @_ }); my $custID = SOAP::Data->name('CustID' => "$cust_id")->type('strin +g')->uri('') +; my $data = SOAP::Data->name('EncryptedData' => "$es")->type('strin +g')->uri('') +; $result = $s->Decrypt($custID, $data)->result;
        I do not necessarily understand the differences between all my iterations and this one, but it works which was my main concern. ES and client ID are now passed in. I still do not know why +trace never worked for me. I never saw anthing on the screen. Anytime there is an error I write it to a file and I found all kinds of garbage in there dealing with my attempts. Thanks for your help.
Re: Re: SOAP Client
by Hammy (Scribe) on Apr 14, 2004 at 03:12 UTC
    I must be a little dense because I just copied you exact code into my script and I did not get any thing returned with trace - the browser showed nothing. I will have to attempt again in the AM.

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