Attachment missing in MTOM response from Citrus SOAP server simulation - soap

Question

I have built a sample Citrus testcase to simulate a SOAP server that responds with an MTOM attachment.
runner.soap(action -> action.server("simulationServer")
.receive()
...[validation etc]
);
runner.soap(action -> action.server("simulationServer")
.send()
.name("get-response")
.mtomEnabled(Boolean.TRUE)
.attachment("myAttachment", "application/octet-stream", new ClassPathResource("testfiles/myAttachment.pdf"))
.payload("<getResponse xmlns:xmime=\"http://www.w3.org/2005/05/xmlmime\">\n" +
" <document>\n" +
" <contentElements>\n" +
" <contentElement xmime:contentType=\"application/pdf\">cid:myAttachment</contentElement>\n" +
" </contentElements>\n" +
" <id>Test</id>\n" +
" </document>\n" +
"</getResponse>\n")
);
When I run this test and call the Citrus simulation with SoapUI, I see the contents of myAttachment.pdf in the debug logs. So at least it looks like Citrus tries to send the attachment.
However, in SoapUI I do not get an attachment. There is a XOP element in the SOAP response, but no attachment. The RAW view of SoapUI of the Citrus response looks like this.
HTTP/1.1 200 OK
Date: Tue, 16 Jan 2018 15:30:36 GMT
Accept: text/xml, text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
SOAPAction: ""
Content-Type: Multipart/Related; boundary="----=_Part_0_382348859.1516116636524"; type="application/xop+xml"; start-info="text/xml"
Transfer-Encoding: chunked
Server: Jetty(9.4.6.v20170531)
------=_Part_0_382348859.1516116636524
Content-Type: application/xop+xml; charset=utf-8; type="text/xml"
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/><SOAP-ENV:Body><getResponse xmlns:xmime="http://www.w3.org/2005/05/xmlmime">
<document>
<contentElements>
<contentElement xmime:contentType="application/pdf"><xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:myAttachment"/></contentElement>
</contentElements>
<id>Test</id>
</document>
</getResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>
------=_Part_0_382348859.1516116636524--
In an MTOM response with attachment the attachment starts where this RAW view ends. It should continue like this
------=_Part_0_382348859.1516116636524-- [last line from above]
Content-Type: application/pdf
Content-Transfer-Encoding: binary
Content-ID: <myAttachment>
%PDF-1.4... [PDF content]
I am using Citrus 2.7.2 release.
Update
Still no success on this. Wireshark shows the same picture as SoapUI: the attachment is missing in the response.
However, when I debug into the code on the server (Citrus) side, I see the attachment in the response message until I get lost somewhere in a MessageSendingTemplate. Same on the console log. The message has the attachment.
There is an inline MTOM variant in the Citrus documentation, but I can't find a way to set this mtom-inline on the attachment in Java config.
Any hints, where to set a breakpoint to find where the attachment get lost? Or any other suggestions/examples on the Citrus side?

Answer 1

The setMtomInline field sits on the SoapAttachment interface. I am not sure if I got the setup right - but seems to work for inlined attachements - fails for soap attachements / multipart. The SoapUI Mock does not show any attachements when receiving requests from following testcase.
SoapAttachment soapAttachment = new SoapAttachment();
soapAttachment.setMtomInline(false);
soapAttachment.setContentResourcePath("log4j.xml");
soapAttachment.setContentType("application/octet-stream");
soapAttachment.setContentId("FILE");
SoapMessage soapMessage = new SoapMessage();
soapMessage.mtomEnabled(true);
soapMessage.soapAction("/HelloService/sayHello");
soapMessage.setPayload(
"<ht:HelloRequest " +
"xmlns:ht=\"http://citrusframework.org/schemas/samples/HelloMtomService\" " +
"xmlns:xop=\"http://www.w3.org/2004/08/xop/include\" >\n" +
" <ht:Message>Hei .. citrus does stream mtom</ht:Message>\n" +
" <ht:Data><xop:Include href=\"cid:FILE\"/></ht:Data>\n" +
"</ht:HelloRequest>");
soapMessage.addAttachment(soapAttachment);
runner.soap(action -> {
action.client("helloMtomSoapuiClient")
.send()
.soapAction("/HelloService/sayHello")
.message(soapMessage);
});
If I do the same for MtomInline set to true, I see the attachement as base64 encoded content text in the ht:Data node.
SoapAttachment soapAttachment = new SoapAttachment();
soapAttachment.setContentResourcePath("log4j.xml");
soapAttachment.setMtomInline(true);
soapAttachment.setContentType("application/xml");
soapAttachment.setContentId("MyAttachement");
soapAttachment.setEncodingType("base64Binary");
runner.soap(action -> {
action.client("helloMtomSoapuiClient")
.send()
.soapAction("/HelloService/sayHello")
.mtomEnabled(true)
.payload("<ht:HelloRequest xmlns:ht=\"http://citrusframework.org/schemas/samples/HelloMtomService\">\n" +
" <ht:Message>Hei .. citrus does mtom</ht:Message>\n" +
" <ht:Data>cid:MyAttachement</ht:Data>\n" +
"</ht:HelloRequest>")
.attachment(soapAttachment);
});
Either soapUI or citrus swallows the attachement. Some help or working JavaDSL sample would be nice.

Answer 2

It was actually a bug that will be fixed in Citrus 2.7.4 release. See https://github.com/christophd/citrus/issues/328
The inline MTOM variant with XML config works for me in the current release.
<ws:send endpoint="simulationServer" mtom-enabled="true">
<message>
<resource file="testfiles/simulation/get-response.xml" />
</message>
<ws:attachment content-id="myAttachment" content-type="application/octet-stream" mtom-inline="true" encoding-type="base64Binary">
<ws:resource file="classpath:testfiles/myAttachment.pdf"/>
</ws:attachment>
</ws:send>