Client can not find the WebService (WSDL)

Submitted by tomcat on May 15, 2008 - 04:14. Forums :

Project: WSO2 WSF/PHP

Hi,

I am trying to access my webservice through a php client. I have moved both service and client (which are in php) into the same directory http://localhost/samples" and has changed the client URI to point to the new location of the client and wsdl file.

$client = new WSClient(array ("wsdl" =>"MyWsdl.wsdl","to" => "http://localhost/samples", "classmap" => $class_map));

When I call the service, the client is created successfully but I get this error:

"response envelope not found Data from Web service"

The original WSDL used to point to a different location and thats why I used

"to" => "http://localhost/samples"

Does anybody know what's happening?

cheers

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"to"=>"new URI" might not working

Submitted by tomcat on May 16, 2008 - 00:23.

Having replaced the

$client = new WSClient(array ("wsdl" =>"MyWsdl.wsdl","to" => "http://localhost/samples/MyService.php", "classmap" => $class_map));

with

$client = new WSClient(array ("wsdl" =>"MyWsdl.wsdl","to" => "http://localhost/samples/dummy.php", "classmap" => $class_map));

It made no difference indicating that the file is not being found.

This makes me think that the "to"=>"new URI" might not working.

Has anybody had similar problems.

cheers

Hi, In order for the client

Submitted by nandika on May 17, 2008 - 21:57.

Hi,

In order for the client to work properly, your specified new endpoint uri should be a web service endpoint implementing the wsdl specified for the "wsdl" option.

Nandika

Hi Nandika, The web service

Submitted by tomcat on May 18, 2008 - 01:45.

Hi Nandika,

The web service specified in MyWsdl.wsdl is implemented in the MyService.php. When I call MyService:

http://localhost/samples/MyService.php

I get a listing of my services deployed in the server and when I call

http://localhost/samples/MyService.php?wsdl

I get a listing of the whole wsdl specifications listed on the screen. But when I call the client

http://localhost/samples/getMyList.php or

http://localhost/samples/getMyList.php?wsdl

the response is null. The client code is like this:

$client = new WSClient(array ("wsdl"=>"MyWsdl.wsdl","to"=>"http://localhost/samples/MyService.php","classmap"=>$class_map, "action"=>"GetAList"));

 echo "Created client ";

 $proxy = $client->getProxy();

 if($proxy == "")

 echo "No proxy";

 $input = new GetAListReq();

 $response = $proxy->GetAList($input);

I have checked the apache.log file and there are no errors. I have checked the wsf_php_client.log and cant see any errors.

How do I check if any messages is sent to the server?

How do I check if the client is working?

cheers

Checking the sent messages

Submitted by nandika on May 19, 2008 - 09:58.

WSClient class has functions getLastRequest() and getLastResponse(). These functions will output the sent and the received soap messages as strings.

Also you can use a tcp monitoring tool to view the messages exchanged between the client and the server. One such tool is tcpmon. http://ws.apache.org/commons/tcpmon/

Regards

Nandika

Client not responding

Submitted by tomcat on May 20, 2008 - 01:46.

Hi Nandika

I have tried the two calls as follows:

$client = new WSClient(array ("wsdl"=>"MyWsdl.wsdl","to"=>"http://localhost/samples/MyService.php","classmap"=>$class_map, "action"=>"GetAList"));

 echo "Created client ";

 echo $client->getLastRequest();

 echo $client->getLastResponse();

 $proxy = $client->getProxy();

 if($proxy == "")

 echo "No proxy";

 $input = new GetAListReq();

 $response = $proxy->GetAList($input);

 echo $client->getLastRequest();

 echo $client->getLastResponse();

I dont get anything back. I have also checked the $response value and it is "".

This is most bizzare. I dont get any exceptions either.

Not sure where to look next!!!

I also downloaded the tcpmon. It looks for a port to scan and having checked my WSDl file, I dont have any specific port that I am supposed to scan. If you have used the tool, which port did you use to scan?

cheers

TCPMON

Submitted by dimuthuc on May 20, 2008 - 21:34.

Hi,

In tcpmon you have to set listen port and target port.

Say you have apache server running on port 80, then change the client endpoint to send the message to a port like 8080 and set the tcpmon options like this

listen port 8080

target port 80

target host localhost

For more help, check the http://ws.apache.org/commons/tcpmon/tcpmontutorial.html

Thanks

Dimth

Dimth, Thanks. I have

Submitted by tomcat on May 21, 2008 - 07:25.

Dimth,

Thanks. I have managed to have tcpmon working but not my program. I paased in two different Soap Actions (one valid and one totally made up) and I got the same message:

Created client

Calling web service

Data from Web service ....

No response

which gives me the impression that the web service endpoint is not found despite the fact that I have told the client where the service is. Gtting a little fed up as what the problem is.

cheers

what is the server reponse message

Submitted by dimuthuc on May 21, 2008 - 07:33.

can you send the server respose message sent by tcpmon?. Is that the message is service not found or operation not found?

dimuthu

Internal server error

Submitted by tomcat on May 22, 2008 - 00:23.

Hi Dimithu

This is what I get:

HTTP/1.1 500 Internal Server Error

Date: Thu, 22 May 2008 08:17:21 GMT

Server: Apache/2.2.4 (Win32) PHP/5.2.5

X-Powered-By: PHP/5.2.5

Content-Length: 289

Connection: close

Content-Type: text/xml

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">

 <soapenv:Header/>

 <soapenv:Body>

 <soapenv:Fault>

 <faultcode>soapenv:Client</faultcode>

 <faultstring>SOAP message does not contain a SOAP envelope element</faultstring>

 </soapenv:Fault>

 </soapenv:Body></soapenv:Envelope>

I am currently running it under Windows XP but plan to port to Ubuntu when I get it to work.

cheeers

Request message?

Submitted by dimuthuc on May 22, 2008 - 01:29.

It says something wrong in incomming request message. Can you post the reuest message as well?

Dimuthu

Request message

Submitted by tomcat on May 22, 2008 - 01:54.

Dimuthu,

In the server, the request is defined as:

class GetAListReq

{

 public $id; // string

 public $password; // string

 public $dateIni; // string

 public $dateEnd; // string

}

class GetAListRsp

{

 public $mydata; // string

}

$actions = array("GetAgenda"=>"GetAList");

In the client, this is how I construct it:

 $client = new WSClient(array ("wsdl"=>"myWsdl.wsdl","classmap"=>$class_map, "action"=>"GetAgenda"));

 $input = new GetAListReq();

 $input->id = "1111"; // string

 $input->password = "secret"; // string

 $input->dateIni = "10/10/08";// string

 $input->dateEnd = "10/10/08"; // string

 echo "calling web service ";

 $response = $proxy->GetAgenda($input);

is this what you needed?

cheers

There seems to be ageneral issue with soap envelope

Submitted by tomcat on May 22, 2008 - 03:20.

Dimithu,

I have just tried to access a test web service on http://www.xmethods.net by writing a simple client using WSO framework. The service accepts an ISBN number and returns a boolean. I came across a similar message:

HTTP/1.1 200 OK

Date: Thu, 22 May 2008 11:14:46 GMT

Server: Apache/2.2.4 (Win32) PHP/5.2.5

X-Powered-By: PHP/5.2.5

Content-Length: 338

Keep-Alive: timeout=5, max=100

Connection: Keep-Alive

Content-Type: text/html

Created client calling web service response envelope not found <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">

 <soapenv:Header/>

 <soapenv:Body>

 <ns1:IsValidISBN10 xmlns:ns1="http://webservices.daehosting.com/ISBN"/>

 </soapenv:Body></soapenv:Envelope>Data from Web service .... Sorry no booksDone

I am not sure if this is relevant, however it may indicate an error somewhere inside the engine.

cheers

have you used echo or print functions

Submitted by dimuthuc on May 23, 2008 - 18:42.

Hi,

Have you used echo or print functions in your service. Can you check from where " Created client" or "Data from Web service .... Sorry no booksDon" comes from?. I think you have used echo. The server side doesn't work when you mixed with WSService->reply() and echo or print.

So can you remove them and try

Thanks

Dimuthu

No echo or print in server side!

Submitted by tomcat on May 24, 2008 - 01:25.

Hi Dimuthu

The messages are all coming from the client side. I also removed all echo/print statements from the client as well and still dont get any response.

I have checked it with tcpmon and the message I get is:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">

 <soapenv:Header/>

 <soapenv:Body>

 <soapenv:Fault>

 <faultcode>soapenv:Client</faultcode>

 <faultstring>SOAP message does not contain a SOAP envelope element</faultstring>

 </soapenv:Fault>

 </soapenv:Body></soapenv:Envelope>

tom

One more thing

Submitted by tomcat on May 24, 2008 - 01:42.

Checking the Apache error log I also get this message:

[Sat May 24 10:40:12 2008] [error] [client 127.0.0.1] operation node not found

dont know if this helps?

tom

Yet one more thing

Submitted by tomcat on May 24, 2008 - 02:05.

Having checked the client and server logs in wsf_c/logs directory I can see this error messages:

SERVER ERROR MESSAGES: wsf_php_server.log

[Sat May 24 10:46:32 2008] [error] ..\..\util\src\dir_handler.c(219) No files in the path C:\PhpTools\wso2-wsf-130-win32\wsf_c/services.

[Sat May 24 10:46:32 2008] [error] ..\..\util\src\class_loader.c(161) dlerror reason: Something went wrong loading the DLL. If you happen to see this message, please note that getting the exact error form Windows is a TODO. And if possible please help fix it. :)

[Sat May 24 10:46:42 2008] [error] ..\..\src\core\transport\http\util\http_transport_utils.c(2220) Service or operation not found

CLIENT ERRORS MESSAGES: wsf_php_client.log

[Sat May 24 10:46:45 2008] [error] ..\..\util\src\dir_handler.c(219) No files in the path C:\PhpTools\wso2-wsf-130-win32\wsf_c/services.

[Sat May 24 10:46:45 2008] [error] ..\..\util\src\class_loader.c(161) dlerror reason: Something went wrong loading the DLL. If you happen to see this message, please note that getting the exact error form Windows is a TODO. And if possible please help fix it. :)

[Sat May 24 10:46:45 2008] [info] wsf_wsdl.php

[Sat May 24 10:46:45 2008] [debug] C:\PhpTools\wso2-wsf-130-win32\scripts\dynamic_invocation\wsf_wsdl_util.php(1363) WSF/PHP] importing xsd: ./MyCommon.xsd from: MyWsdl.wsdl

[Sat May 24 10:46:46 2008] [info] [rampart][rampart_mod] rampart_mod shutdown

Hope this would shed some light on the problem.

tom

check the soapAction in the wsdl

Submitted by dimuthuc on May 24, 2008 - 03:35.

Can you recheck your soap action in the wsdl.

For an example, Your wsdl can have binding section simmilar to this,

<wsdl:binding name="MyServiceSoapBinding"

 type="tns:MyServicePortType">

 <wsp:PolicyReference URI="#transport_binding_policy"/>

 <soap:binding style="document"

 transport="http://schemas.xmlsoap.org/soap/http" />

 <wsdl:operation name="GetAgenda">

 <soap:operation

 soapAction="http://www.somewhere.com/GetAgenda" />

 <wsdl:input>

 <soap:body use="literal" />

 </wsdl:input>

 <wsdl:output>

 <soap:body use="literal" />

 </wsdl:output>

 </wsdl:operation>

 </wsdl:binding>

You don't need to provide action option explicitly , in wsdl mode it pick from wsdl inside the wsf/php code, so leave it blank. But if you don't have the soapAction attribute in the WSDL you need to add one. (becuase in your case since the operation name ("getAgenda) is diffrent from the payload element name ("GetAListReq") the service can't find the service operation.

Can this be the reason for your problem?

-Dimuthu

I think we are getting closer!!

Submitted by tomcat on May 24, 2008 - 04:41.

I have done the chcanges you suggested. The server seems to be working fine now and loads the WSDL and all operations. The client still having problems. I get this in the client error log:

[Sat May 24 13:37:19 2008] [error] ..\..\util\src\class_loader.c(161) dlerror reason: Something went wrong loading the DLL. If you happen to see this message, please note that getting the exact error form Windows is a TODO. And if possible please help fix it. :)

[Sat May 24 13:37:19 2008] [debug] ..\..\src\core\transport\http\sender\http_sender.c(415) msg_ctx_id:288b8772-af11-419d-8ed8-1dac29ef2092

[Sat May 24 13:37:19 2008] [error] ..\..\src\core\transport\http\sender\http_sender.c(1367) Error occurred in transport

[Sat May 24 13:37:19 2008] [error] ..\..\src\core\transport\http\sender\http_sender.c(1399) Error occurred in transport

[Sat May 24 13:37:19 2008] [error] ..\..\src\core\engine\engine.c(179) Transport sender invoke failed

[Sat May 24 13:37:19 2008] [error] wsf_wsdl.c(495) [wsf_wsdl] Response envelope not found

[Sat May 24 13:37:19 2008] [info] [rampart][rampart_mod] rampart_mod shutdown

How do I fix this?

Server hasnt read the whole WSDL file

Submitted by tomcat on May 24, 2008 - 05:29.

I have just checked the server log file and it seems that the whole WSDL hasnt been read. Following through the debug message, it has only read 3 of my 10 operations and the error log shows the following:

name="cause" type="string" type-namespace="http://www.w3.org/2001/XMLSchema" type-prefix="xsd" simple="yes"/></returns></signature><binding-details soapactio8²íÄ4Þ€1\ % ÐÐ]

and may be this is why it can not find the operation as it has not been loaded by the server.

I have checked my WSDL file and can not see any errors in lt. I think the function that reads in the wsdl file may have had an array overflow or somethinglike that. I think it is in file

wsf_xml_msg_recv.c.

tom

If possible can you send us your wsdl and xsd files and code

Submitted by dimuthuc on May 24, 2008 - 05:42.

Hi,

If possible can you send us your wsdl and xsd files and client service code, which No doubt we can pick the bug or some other problem

Thanks

Dimuthu

OK, what is your email address?

Submitted by tomcat on May 24, 2008 - 05:52.

OK, what is your email address?

tom

Attach to the forum

Submitted by dimuthuc on May 24, 2008 - 06:07.

You can attach the file to forum. If you think it should not be public. Can you please send us wsdl with the same strucutre as the original. (you may changed names and remove unnecessory operations)

-Dimuthu

here are the ..

Submitted by tomcat on May 24, 2008 - 06:57.

Ok, I have uploaded the files.

tom

Attachment	Size
getAgenda.php_.txt	9.09 KB
CxCommon.xsd	14.39 KB
CxWsdl.wsdl	15.54 KB
CxWebService.php_.txt	9.94 KB

The problem is in the wsdl.

Submitted by dimuthuc on May 24, 2008 - 07:44.

The problem is in the wsdl. it misses the namespace declaration

xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy"

So the start of the wsdl you have to have like this

<wsdl:definitions targetNamespace="http://localhost/samples/CxWsdl"

 xmlns="http://schemas.xmlsoap.org/wsdl/"

 xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"

 xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"

 xmlns:xsd="http://www.w3.org/2001/XMLSchema"

 xmlns:tns="http://localhost/samples/CxWsdl"

 name="CxWsdl"

 xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy"

 xmlns:ns1="http://localhost/samples/CxCommon" xmlns:plink="http://schemas.xmlsoap.org/ws/2004/03/partner-link/">

I didn't look further, if this still doesn't fix let us know

Thanks

Dimuthu

It didnt work :-(

Submitted by tomcat on May 24, 2008 - 08:55.

Hi Dimuthu,

I tried that and modified the wsdl, but got the same error messages. The example I sent is complete, so might be a good idea to run the example and check particularly wsf_xml_msg_recv.c (Line 528) as it seems that the whole WSDL file is not read and because of that the service is not found.

May be the array is not long enough or the file is too big for the variable it is being read to. (just a few suggestions)

tom

function

Submitted by dimuthuc on May 24, 2008 - 09:39.

function GetAgendaList($input)

{

      $res = new GetAgendaListRsp();

      $agenda = new AgendaType();

      $agenda->acidem = "AA";

      $agenda->quantity = "22"; // string

      $agenda->frecuency = "22"; // string

      $agenda->dateIni = 1111111; // long

      $agenda->dateEnd = 1111111; // long

      $agenda->timeStamp = 999999; // long

      $agenda->observations = "Are we there yet";

      $agendalist = new AgendaListType();

      $agendalist->AgendaList = array($agenda);



      $res->myData = "We are there";

      $res->AgendaList = $agendalist;

      return $res;

}

in client

echo $response->AgendaList->AgendaList[0]->acidem,"<br/"; (note that extra AgendaList)

Worked for me

Great, worked for me too.

Submitted by tomcat on May 25, 2008 - 12:31.

Great, tested it and it worked in the browser.

I also ran the test on the tcpmon, but got the following message:

<faultstring>SOAP message does not contain a SOAP envelope element</faultstring>

I used : http://localhost/samples/CxWebService.php for my connection end point and GetAgendaList for my soap action. Have I used the right

tom

Client can not find the WebService (WSDL)

Comment viewing options

"to"=>"new URI" might not working

Hi, In order for the client

Hi Nandika, The web service

Checking the sent messages

Client not responding

TCPMON

Dimth, Thanks. I have

what is the server reponse message

Internal server error

Request message?

Request message

There seems to be ageneral issue with soap envelope

have you used echo or print functions

No echo or print in server side!

One more thing

Yet one more thing

check the soapAction in the wsdl

I think we are getting closer!!

Server hasnt read the whole WSDL file

If possible can you send us your wsdl and xsd files and code

OK, what is your email address?

Attach to the forum

here are the ..

The problem is in the wsdl.

It didnt work :-(

function

Great, worked for me too.

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