XMPP SASL Authentication - xmpp

I am trying to create an XMPP server library for an XMPP-based application I will be developing.
I am stuck on trying to authenticate the client with plain SASL. I have already read the RFC at https://www.rfc-editor.org/rfc/rfc6120#section-6.4.6
My problem is that after sending a <success />, receiving and sending a new open tag and an empty features list, the client (Pidgin) proceeds to authenticate using non-SASL authentication. This is a log of the communication (<< means incoming, >> outgoing):
<< <?xml version='1.0' ?><stream:stream to='127.0.0.1' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>
>> <?xml version="1.0" ?>
>> <stream:stream version="1.0" xmlns="jabber:server" xmlns:stream="http://etherx.jabber.org/streams" id="kanapka" from="127.0.0.1">
>> <stream:features>
>> <mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl">
>> <mechanism>
>> PLAIN
>> </mechanism>
>> </mechanisms>
>> </stream:features>
<< <auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN' xmlns:ga='http://www.google.com/talk/protocol/auth' ga:client-uses-full-bind-result='true'>AHRlc3R1c2VyAHRlc3RwYXNz</auth>
>> <success xmlns="urn:ietf:params:xml:ns:xmpp-sasl" />
<< <stream:stream to='127.0.0.1' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>
>> <?xml version="1.0" ?>
>> <stream:stream version="1.0" xmlns="jabber:server" xmlns:stream="http://etherx.jabber.org/streams" id="hotdog" from="127.0.0.1">
>> <stream:features />
<< <iq type='get' id='purple46cbc043'><query xmlns='jabber:iq:auth'><username>testuser</username></query></iq>
I am not yet using TLS, nor have I tried any other SASL mechanism. This is all plain text.
This is the same TCP connection, the IDs of streams are different. What is the problem here?

You're not advertising support for resource binding, so the client can't complete the session setup. It seems Pidgin decides then to fall back on jabber:iq:auth (pre-XMPP style) if the server doesn't support XMPP-style stream setups.
You'll want to take a look at https://www.rfc-editor.org/rfc/rfc6120#section-7 as "Support for resource binding is REQUIRED in XMPP client and server implementations." and "The parties to a stream MUST consider resource binding as mandatory-to-negotiate."
While implementing XMPP by looking at what other implementations do, rather than following the specs, is not a good idea, sometimes taking a glance at another implementation's stream can give a clue when you get stuck like this.

Related

Getting Soap Body from Web Service Consumer

I have a web service consumer in a flow and simply want to extract the XML contained in the soap envelope to be put on the outbound vm queue. How can I accomplish that in a flow, I have shown a sample of the soap message;
<ws:consumer-config name="WS_Connector"
connector-ref="HTTP_HTTPS" wsdlLocation="orderService.wsdl"
service="OrderService" port="OrderServiceWS"
serviceAddress="http://ws-orders.com?responseTimeout=60000"
doc:name="Web Service Consumer" />
<flow name="mainFlow">
<vm:inbound-endpoint path="request.queue"/>
<ws:consumer config-ref="WS_Connector"
operation="orderTShirts" doc:name="TShirt Service Consumer">
</ws:consumer>
<!-- Get Just the XML Payload without the Soap Envelope
for the vm outbound queue
<tshirt xmlns="http://www.webservice.order-service">
<size>17</size>
<color>red</color>
</tshirt>
-->
<vm:outbound-endpoint path="response.queue"/>
</flow>
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<tshirt xmlns="http://www.webservice.order-service">
<size>17</size>
<color>red</color>
</tshirt>
</soap:Body>
</soap:Envelope>
The web-service-consumer is designed to only accept the body/operation part of the XML document and will produce body/operation in response.
Pls go through the dataweave document :- https://docs.mulesoft.com/mule-user-guide/v/3.7/web-service-consumer
What you can do here use XSLT transforer or DataWeave to add your soap envelope after your <ws:consumer/> in the response something like following example :-
<!-- your code above -->
<ws:consumer config-ref="WS_Connector" operation="orderTShirts" doc:name="TShirt Service Consumer"/>
<dw:transform-message doc:name="XML to JSON" >
<dw:input-payload doc:sample="ListInventoryResponse.xml"/>
<dw:set-payload><![CDATA[%dw 1.0
%output application/xml
%namespace ns0 http://mulesoft.org/tshirt-service
%namespace soap http://schemas.xmlsoap.org/soap/envelope/
---
soap#Envelope : {
soap#Body:payload
}]]></dw:set-payload>
</dw:transform-message>
The solution I found is quite simple
<mulexml:dom-to-xml-transformer doc:name="SOAP Response to XML" encoding="UTF-8" mimeType="application/xml" outputEncoding="UTF-8"/>

Does XMPP require a dialback?

I've been doing it as follows :
Step 1. <Stream>
Step 2. <Auth> (PLAIN)
Step 3. <Session>
Stuck here.
This tutorial does not mention dialback: http://ceit.uq.edu.au/content/how-xmpp-works-step-step
However, under 8.3. Protocol of the documentation, it says to use a dialback: http://xmpp.org/rfcs/rfc3920.html
Right now, this is the full response I get from my server:
<?xml version='1.0'?><stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='1027203257' from='mysite.com' version='1.0' xml:lang='en'>
<stream:features><mechanisms xmlns='urn:ietf:params:xml:ns:xmpp-sasl'><mechanism>PLAIN</mechanism><mechanism>DIGEST-MD5</mechanism><mechanism>SCRAM-SHA-1</mechanism></mechanisms><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' node='http://www.process-one.net/en/ejabberd/' ver='yy7di5kE0syuCXOQTXNBTclpJWo='/><register xmlns='http://jabber.org/features/iq-register'/></stream:features>
<success xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>
<stream:error><xml-not-well-formed xmlns='urn:ietf:params:xml:ns:xmpp-streams'/></stream:error>
</stream:stream>
I've seen in some peoples code, after step 2, they run <stream> again, but in others they don't. Is this needed?
Server Dialback is uses for s2s (server-to-server) connections. You don't need it for c2s (client-to-server) connections.

wso2 ESB request is truncated

i'm using fresh installation of wso2 esb 4.8.1 with stanalone default configuration.
when i send soap request to my backend (perl service with soap lite), the body of POST request is truncated like this according to tcpdump:
SOAPAction: ""
Content-Type: text/xml
Content-Length: 511
Host: 192.168.11.234:8181
Connection: Keep-Alive
User-Agent: Synapse-PT-HttpComponents-NIO
<?xml version="1.0" encoding="UTF-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="htt
p://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soap:Body>
<deleteAccountForHost xmlns="AbcdeHostingPhysicalHostManagerCPanelService">
<host xsi:type="xsd:string">zs000.abcde.net</host>
<user xsi:type="xsd:string">tstauto</user>
</deleteAccountForHost>
</soap:Body>
</soap:Envel
You can see that closing tag '</soap:Envel' is truncated.
But when i enable SOAP-tracer the request body becomes valid.
i use PT transport. I tried to switch transport to the nhttp and this problem seems to be disappeared.
So the question is: how to configure PT transport to avoid such strange behavior?
UPD1:
it seems that the problem occurs only when set the property FORCE_HTTP_1.0 and transport is PT
I got the same problem, but I set DISABLE_CHUNKING.
After many tries I tested that disabling chunking or forcing HTTP 1.0 results in truncated request.
I use WSO2 ESB version 4.8.1, client is SoapUI 5.0.0 or SoapClient from PHP 5.5.11.
When I use "Try this service" in ESB, then request is not truncated.
After switching from HTTP PassThrough Transport to HTTP-NIO Transport service behind endpoint receives complete request, but then I can't download WSDL of tenant.

PubSub module returning error

I'm working on getting Jappix running. I'm using ejabberd as my XMPP server and I've got everything working except comments and viewing attachments - group chat, single chat, external authentication, private messages, friend lists, presence and other works as intended.
My configuration is the same as the one the Jappix project provides on their jappix/jappix-tools github repository. I have no errors in my ejabberd log, the only thing I got while debugging and digging everything up is that this is an example stanza sent to the server:
<iq xmlns="jabber:client" type="get" id="get_31-30" to="pubsub.mydomain.com" xml:lang="en">
<pubsub xmlns="http://jabber.org/protocol/pubsub">
<items node="urn:xmpp:microblog:0:comments/3aca5f972fe7198805bdd1a20f502f35"/>
</pubsub>
</iq>
And this is the response I get from the server:
<iq xmlns="jabber:client" from="pubsub.mydomain.com" to="arqu#mydomain.com/jappix (1378149270017)" type="error" id="get_31-30" xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace">
<pubsub xmlns="http://jabber.org/protocol/pubsub">
<items node="urn:xmpp:microblog:0:comments/3aca5f972fe7198805bdd1a20f502f35"/>
</pubsub>
<error code="503" type="cancel">
<service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
</error>
</iq>
And in Jappix I just get the usual "Service Unavailable" error message.
Additional info:
My BOSH is the internal one of ejabberd and works fine as far as i know, I've setup the reverse proxy and everything else to make it work. Still could be something related to this and not reaching the service on some other port maybe?
It looks like you do not have pubsub enabled/installed on your server.
Have you tried any other pubsub request?

BancBox SOAP API getClient - call fails using WCF client infrastructure

I apologize in advance if this post feels too long. But 1) this is my first post ever and 2) I have really been over the river and through the woods trying to figure this out.
The Add Service Reference feature in Visual Studio 2012 produces a proxy that (apparently) generates invalid SOAP messages. I suspect it has to do with serialization or how the proxy types are decorated but I cannot seem to figure it out. Help is much appreciated.
Detail 1. My environment is Visual Studio 2012 and I have created a .NET 4.5 class library with a service reference to https://sandbox-api.bancbox.com/v1/BBXPort?wsdl. I'm attempting to call the getClient() function; which is defined here. (http://www.bancbox.com/api/view/45)
The code looks like this:
public void GetClient()
{
// create an instance of the service reference proxy class
var bbx=newBBXClient();
bbx.ChannelFactory.Endpoint.Behaviors.Remove<System.ServiceModel.Description.ClientCredentials>();
bbx.ChannelFactory.Endpoint.Behaviors.Add(new CustomCredentials());
bbx.ClientCredentials.UserName.UserName="MY_USERNAME";
bbx.ClientCredentials.UserName.Password="MY_PASSWORD";
var customerId=newid {
subscriberReferenceId="44XX33YY"
};
var request=newgetClientRequest {
subscriberId=MY_SUBSCRIBER_ID,
clientId=customerId
};
var response=bbx.getClient(request);
}
Detail 2. I have made many successful calls into the web service via SoapUI. The successful SoapUI-produced SOAP messages look like this
<soapenv:Envelope xmlns:sch="schema.bancbox.com" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header>
<wsse:Security soapenv:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<wsse:UsernameToken wsu:Id="UsernameToken-11">
<wsse:Username>MY_USERNAME</wsse:Username>
<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">MY_PASSWORD</wsse:Password>
<wsse:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">tRLo6AlRKl+/rULiKq6A6g==</wsse:Nonce>
<wsu:Created>2013-02-22T18:32:02.204Z</wsu:Created>
</wsse:UsernameToken>
</wsse:Security>
</soapenv:Header>
<soapenv:Body>
<sch:getClient>
<getClientRequest>
<subscriberId>MY_SUBSCRIBER_ID</subscriberId>
<clientId>
<!--Optional:-->
<subscriberReferenceId>44XX33YY</subscriberReferenceId>
</clientId>
</getClientRequest>
</sch:getClient>
</soapenv:Body>
</soapenv:Envelope>
Detail 3. Per Fiddler, my failed SOAP messages look like this
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
<VsDebuggerCausalityData xmlns="http://schemas.microsoft.com/vstudio/diagnostics/servicemodelsink">uIDPozcAgEH0QhJHloqMBWUf3mAAAAAA5wy3enJkDUGU8IaMUCFyEjzfL+1Uez1HhAvEeFpJ+30ACQAA</VsDebuggerCausalityData>
<o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<o:UsernameToken u:Id="uuid-6e1c9f81-0651-41f7-b659-26b191bf7e13-1" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<o:Username>MY_USERNAME</o:Username>
<o:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">MY_PASSWORD</o:Password>
<o:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">hGggJkxurSkHQ3MKoeBK6AmEHNs=</o:Nonce>
<u:Created>2013-02-23T11:24:47.663Z</u:Created>
</o:UsernameToken>
</o:Security>
</s:Header>
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<getClient xmlns="schema.bancbox.com">
<getClientRequest xmlns="">
<subscriberId>MY_SUBSCRIBER_ID</subscriberId>
<clientId>
<subscriberReferenceId>XX55YY22</subscriberReferenceId>
</clientId>
</getClientRequest>
</getClient>
</s:Body>
</s:Envelope>
The SOAP message above is produced when running the GetClient() method. GetClient throws the following Exception.
System.ServiceModel.FaultException
Unmarshalling Error: cvc-elt.4.2: Cannot resolve 'getClientRequest' to a type definition for element 'getClientRequest'.
When I replay the same failing message using SoapUI, I get the following response:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<soap:Fault>
<faultcode>soap:Client</faultcode>
<faultstring>Unmarshalling Error: cvc-elt.4.2: Cannot resolve 'getClientRequest' to a type definition for element 'getClientRequest'. </faultstring>
</soap:Fault>
</soap:Body>
</soap:Envelope>
Detail 4. Based on my research, this indicates that the server on the other end is Apache CXS. It's choking on my SOAP request. So I started playing around with my SOAP message and submitting it via SoapUI.
The first glaring distance in the successful message and my fail message are these lines
SUCCESS
<sch:getClient>
<getClientRequest>
FAIL
<getClient xmlns="schema.bancbox.com">
<getClientRequest xmlns="">
So the first thing that I did was make my getClientRequest tag identical to the successful one.
<getClient xmlns="schema.bancbox.com">
<getClientRequest>
This produced the following response.
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>Found element {schema.bancbox.com}getClientRequest but could not find matching RPC/Literal part</faultstring>
</soap:Fault>
</soap:Body>
</soap:Envelope>
The next thing that I did is change the way the getClient tag is assigned a schema.
BEFORE
<getClient xmlns="schema.bancbox.com">
AFTER
<s:Envelope xmlns:bb="schema.bancbox.com" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
. . .
<bb:getClient>
<getClientRequest>
. . .
</bb:getClient>
The resultant SOAP message looks like this and it is successful.
<s:Envelope xmlns:bb="schema.bancbox.com" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
<VsDebuggerCausalityData xmlns="http://schemas.microsoft.com/vstudio/diagnostics/servicemodelsink">uIDPozcAgEH0QhJHloqMBWUf3mAAAAAA5wy3enJkDUGU8IaMUCFyEjzfL+1Uez1HhAvEeFpJ+30ACQAA</VsDebuggerCausalityData>
<o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<o:UsernameToken u:Id="uuid-6e1c9f81-0651-41f7-b659-26b191bf7e13-1" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<o:Username>MY_USERNAME</o:Username>
<o:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">MY_PASSWORD</o:Password>
<o:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">hGggJkxurSkHQ3MKoeBK6AmEHNs=</o:Nonce>
<u:Created>2013-02-23T11:24:47.663Z</u:Created>
</o:UsernameToken>
</o:Security>
</s:Header>
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<bb:getClient>
<getClientRequest>
<subscriberId>MY_SUBSCRIBER_ID</subscriberId>
<clientId>
<subscriberReferenceId>XX55YY22</subscriberReferenceId>
</clientId>
</getClientRequest>
</bb:getClient>
</s:Body>
</s:Envelope>
So the million dollar questions are WHY and HOW.
*WHY does the .NET proxy class serialize the SOAP message the way it does?
*HOW do I fix it? How can I may my proxy serialize into the SOAP message above? How can I force the serializer to define shorthand for the message namespace in the Envelop and then use the shorthand in the message tag?
FYI, to even get to this point I had to get past a number of WCF WSE issues and ended up implementing the solution so generously provided on Rich Stahls blog. I would post the link but apparently I don't have enough rep.
From I understand, the SOAP message that WCF produces is syntactically correct. However, Java CXF web services are very rigid with regards to the SOAP messages that they will accept.
The solution to specific problem setting aliases for xml namespace definitions in the Operation node of the SOAP messages produced by WCF proxies involves implementing a Custom Message Inspector is detailed here: Force WCF to create an xml namespace alias in client proxy.
This has completely resolved my issue.