Ignite Realtime: Smack over http

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5922 Views 22 Replies Latest reply: Oct 28, 2011 7:05 AM by Kristam269

soban

2 posts since
Jan 11, 2010

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Jan 11, 2010 10:48 PM

Smack over http

Hi,

I am new to XMPP, started to use ejabberd and Smack API last week. I want to connect to the ejabberd on port 80 using Smack API. I am not sure how to proceed. Any help will be greatly appreciated. Thanks.

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Guenther Niess
305 posts since
Jun 19, 2008

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Jan 12, 2010 7:39 AM (in response to soban)
Re: Smack over http

Hi Soban,
do you mean BOSH (Bidirectional-streams Over Synchronous HTTP or formerly HTTP-Bind) and configured ejabberd with the http_poll module to port 80?
There is currently no such support in the official release, but I've started a branch to implement this. You can download it via subversion
svn co http://svn.igniterealtime.org/svn/repos/smack/branches/bosh/ smack-bosh
But this is still in development and have some major issues, like there is currently no support for proxies and SSL/TLS. But I like to invite you to use it and report issues and problems to this forum, then I will try to fix them.

You can build the sources using Ant:
ant -f build/build.xml
or Maven (but here you have to install some libraries to your local repository, since we don't have a maven repository here on ignite yet).
The compiled libraries are located on the subproject directories (smack, smack-bosh, smackx, etc.) in the target folder. If you use the packages with the jar-with-dependencies suffix you don't need to care about other necessary libraries.

Start to use smack with:
BOSHConfiguration config = new BOSHConfiguration(false, "hostname", 80, "/http-poll/", "yourdomain.lt"); Connection con = new BOSHConnection(config); con.connect(); con.login(user, pass);

Good Luck!

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- soban
  2 posts since
  Jan 11, 2010
  
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  Jan 15, 2010 1:18 AM (in response to Guenther Niess)
  Re: Smack over http
  
  Hi Guenther,
  
      Thats exactly what I needed but I thought that Smack has support for it. Can you please explain what
  ProxyInfo.forHttpProxy(host, port, user, pass) method exactly do? Actually my objective is to run the jabberd server behind firewall listening on port 80 so the client can make a connection via http.
  
      I also checked out the three java files but I am having problem to build it. The classes
  BOSHConnection.java and BOSHPacketReader.java are not compiling. Can you please help me with the build.
  The respective error is Connection and BOSHClientResponseListener cannot be resolved to a type.
  
  Thanks
  
  Edited:
  
       Hey, I resolved the build problem (I didnt checked out entire project earlier) .
       Now the code
  
                 BOSHConfiguration config = new BOSHConfiguration(false, "host", 80, "/http-bind", "domain");
                 Connection conn = new BOSHConnection(config);
                 conn.connect();
  
       is working perfectly but I am getting an exception while I try to disconnect() the connection.
  
      Exception in thread "BOSHClient[26315233]: Receive thread" java.lang.NullPointerException
       at com.kenai.jbosh.XLightWebResponse.awaitResponse(XLightWebResponse.java:187)
       at com.kenai.jbosh.XLightWebResponse.getBody(XLightWebResponse.java:166)
       at com.kenai.jbosh.BOSHClient.processExchange(BOSHClient.java:1031)
       at com.kenai.jbosh.BOSHClient.processMessages(BOSHClient.java:976)
       at com.kenai.jbosh.BOSHClient.access$000(BOSHClient.java:97)
       at com.kenai.jbosh.BOSHClient$1.run(BOSHClient.java:215)
       at java.lang.Thread.run(Thread.java:619)
  
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- vibhu
  3 posts since
  Jan 30, 2010
  
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  Feb 2, 2010 6:14 AM (in response to Guenther Niess)
  Re: Smack over http
  
  Hi Guenther,
  
  Thanx for the info. I have been able to connect to Openfire using the development build using BOSH.
  
  I am trying to pass the connection RID and SessionID after creation to the Browser, so that Strophe can reattach itself to the already created connection.
  
  I modified the com.kenai.jbosh and your library and added a function to return back the RID from the connection.
  
  My problem is that Strophe is not been able to bind itself to the created connection.
  
  While searching I came across this which uses Mod-Http-Pre-Bind
  
  for ejabbered. My question now is "Does Openfire supports Http-pre-binding". If yes how may I use it?
  
  Thanx in advance for your help.
  
  regards
  
  Vibhu
  
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  - mlux
    1 posts since
    Feb 16, 2010
    
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    Feb 16, 2010 2:24 AM (in response to vibhu)
    Re: Smack over http
    
    Hi vibhu,
    
    Openfire officially supports attaching to existing sessions (so it should also work with prebinding). Some time ago, I tried to use openfire with StropheJS, too but it just won't work. I figured out that it sometimes helped to increase the rid when attaching to a session but somehow that spawned new problems and I never got this working 100% with openfire. I guess that the BOSH implementation of openfire is a bit buggy or at least very strict when it comes to managing rid's.
    In the end my solution was switching to ejabberd which works like a charm.
    
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  - Jordan
    10 posts since
    Mar 12, 2010
    
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    Mar 15, 2010 3:09 PM (in response to vibhu)
    Re: Smack over http
    
    would you be so kind as to post the details on how you modified the code to return the RID? I am facing the same situation at the moment and I would like to try my hand at getting Strophe to successfully attach to a session. Thanks!
    
    Big thanks to Guenther for sharing the smack-bosh code. Its working well for me so far. I just need that RID now!
    
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    - vibhu
      3 posts since
      Jan 30, 2010
      
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      Mar 17, 2010 4:12 AM (in response to Jordan)
      Re: Smack over http
      
      Hi Jordan,
      
      I just added a getter for RID in org.jivesoftware.smack.BOSHConnection as follows
      
      public long getRid()
          {
              return client.getRid();
          }
      
      and in your code you will have to cast the Connection object into BOSHConnection to use the method.
      
      Hope this may be of some help to you.
      
      regards
      Vibhu
      
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      - Jordan
        10 posts since
        Mar 12, 2010
        
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        Mar 17, 2010 9:48 AM (in response to vibhu)
        Re: Smack over http
        
        Thanks for the reply Vibhu,
        
        I must be missing something. I don't see a function called getRid() anywhere in the smack-bosh or jbosh source, and my build expectedly fails when I add the function suggested above. You mentioned making a modification to jbosh as well - were you talking about the referenced getRid() function? That's the part that would be most useful to me, I would greatly appreciate it if you could share that too
        
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        vibhu
        3 posts since
        Jan 30, 2010
        
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        Mar 17, 2010 11:07 AM (in response to Jordan)
        Re: Smack over http
        
        Pardon me for the incomplete info. Here are the changes which I have done in com.kenai.jbosh.BOSHClient class
        
        I introduced a new property
        
        private Long rid;
        
        commented the following code
                  long rid = requestIDSeq.getNextRID();
        
        and at that place added
                   this.rid = requestIDSeq.getNextRID();
        
        and finally added a new getter for rid
        
        public Long getRid()
        {
               return rid;
        }
        
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        Jordan
        10 posts since
        Mar 12, 2010
        
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        Mar 17, 2010 11:10 AM (in response to vibhu)
        Re: Smack over http
        
        thanks vibhu, i'll try out your changes later today!
        
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        Jordan
        10 posts since
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        Mar 18, 2010 12:07 PM (in response to vibhu)
        Re: Smack over http
        
        i had some time yesterday to make those edits and rebuild the .jars. thanks again vibhu - your edits worked nicely. i was able to start a BOSH connection with smack with no problems. now i'm having an odd issue attaching the connection with strophe - it always works in firefox, sometimes in safari, and never in chrome. weird! i guess i'm to find some strophe support for that one now.
        
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- Protected
  8 posts since
  Dec 8, 2010
  
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  Feb 8, 2011 12:38 AM (in response to Guenther Niess)
  Re: Smack over http
  
  Thanks for the good work. I have successfully used bosh with smack using this branch. Hopefully it will be included in the next version of smack.
  
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- public@thorhauer.com
  1 posts since
  Oct 10, 2011
  
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  Oct 10, 2011 10:23 AM (in response to Guenther Niess)
  Smack over http
  
  Hi Guenther,
  
  I was looking into your work in the bosh branch. Can you tell me which version of smack the BOSH version is built against? I noticed that when I built the library from source in shows 'smack-bosh-3.2.0'. Does this mean that it is built against the 3.2.0 release of smack? Also, is there any idea if this branch will become part of the release so that bugs will be fixed against it?
  
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ap_nat
1 posts since
May 25, 2010

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May 25, 2010 8:29 AM (in response to soban)
Re: Smack over http

have done a backport of the bosh client to smack 310, attaching as a zip file. The main part was to make BoshConnection extend XMPPConnection, handle IQ s in a better way. The only non BOSH class I needed was org.jivesoftware.smack.sasl.SASLMechanism from the latest branch.

Attachments:

smack-bosh-backport.jar (8.3 K)

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- RAJ
  1 posts since
  Oct 11, 2011
  
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  Oct 11, 2011 3:02 PM (in response to ap_nat)
  Smack over http
  
  Hi All,
  
  I am kind of stuck on build issue now!! I have been trying pubsub over XMPP which is supported in version SMACK 3.2.1 (Not in 3.2.0-Snapshot version).
  
  Now, I am trying to build Branch bosh against Tag (3.2.1) because I wanna use pubsub with bash over XMPP.
  
  But, there are few dependecy jars under "http://svn.igniterealtime.org/svn/repos/smack/branches/bosh/build/merge/smack-bo sh/jbosh.jar"
  
  This jar is having BOSHClient.java which calls "XmlPullParserFactory,java" at runtime which doesn't exist in latest 3.2.1 smack release. So, I end up with following exception:
  
  Exception in thread "BOSHClient[1762502123]: Receive thread" java.lang.NoClassDefFoundError: org/xmlpull/v1/XmlPullParserFactory
  
  Can someone please help me in understanding the build structure becuase structure of BOSH branch is different than TAG/Trunk.
  
  Thanks in advance! I really need this
  
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  - Protected
    8 posts since
    Dec 8, 2010
    
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    Oct 11, 2011 3:40 PM (in response to RAJ)
    Re: Smack over http
    
    You need the xpp3.jar library. (attached)
    
    It is available in the whack distribution.
    
    I remember I had to include other jars to get it to work.
    
    I needed following (google for them):
    
    1. xlightweb-2.13.2-jar-with-dependencies.jar
    2. xpp3.jar (attached)
    3. dom4j.jar (in whack distro)
    4. some code from com.kenai.jbosh branch
    5. some code from org.jivesoftware.smack branch
    
    I am attaching modified smack jar with the class files from 4 and 5 included. For the others you can download the regular jars.
    This is from 3.1.0 (one of the nightly builds).
    
    Attachments:
    
    smack.jar (358.7 K)
    
    xpp3.jar (117.0 K)
    
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    - Kristam269
      35 posts since
      Oct 14, 2011
      
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      Oct 27, 2011 5:21 AM (in response to Protected)
      Re: Smack over http
      
      Hi,
      
      Version : Openfire 3.7.1 , Smack- 3.2.1 and jbosh-0.6.0.jar
      XMPP default port: 5222 and my connection manager port: 5333 and HttpBinding – 7070(Enabled in Admin console)
      BOSHConfiguration config = new BOSHConfiguration(false, "myipaddress",
      5222, "/http-bind", "myservicename");
      As per this thread to introduce a new rid property in BOSCHClient.java I have downloaded the jbosh-0.6.0 source code from this URL (http://grepcode.com/snapshot/repo1.maven.org/maven2/com.kenai.jbosh/jbosh/0.6.0)
      I made those changes in BOSHClient.java and after that also I am getting the same errors.
      If I use the port number as 5222 / 5333 I am getting Timeout reaches Exception
      And for 7070 port I am getting NullPointerException
      Exception in thread "BOSHClient[18378667]: Receive thread" java.lang.NullPointerException
      at com.kenai.jbosh.XLightWebResponse.awaitResponse(XLightWebResponse.java:187)
      at com.kenai.jbosh.XLightWebResponse.getBody(XLightWebResponse.java:166)
      at com.kenai.jbosh.BOSHClient.processExchange(BOSHClient.java:1031)
      at com.kenai.jbosh.BOSHClient.processMessages(BOSHClient.java:976)
      at com.kenai.jbosh.BOSHClient.access$000(BOSHClient.java:97)
      at com.kenai.jbosh.BOSHClient$1.run(BOSHClient.java:215)
      at java.lang.Thread.run(Unknown Source)
      I am bit confusing with these port number. Actually which port number do I need to use here.
      I am using these jars [ smack.jar,smackx-debug.jar,smackx-jingle.jar, smackx.jar, xlightweb-2.5.jar, xmlpull_1_1_3_4c.jar, xpp3-1.1.4c.jar, xSocket-2.6.6.jar and dom4j-1.6.1.jar]
      Can someone please help me whatelse jars do need to include or post here the modified jars…
      Thanks
      
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      - Protected
        8 posts since
        Dec 8, 2010
        
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        Oct 27, 2011 6:38 AM (in response to Kristam269)
        Re: Smack over http
        
        I think you need the jar "xlightweb-2.13.2-jar-with-dependencies.jar". You can find it via Google.
        I am also attaching the same. Please let us know if you got it to work.
        
        Attachments:
        
        xlightweb-2.13.2-jar-with-dependencies.jar (1,000.4 K)
        
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        Kristam269
        35 posts since
        Oct 14, 2011
        
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        Oct 27, 2011 11:13 PM (in response to Protected)
        Re: Smack over http
        
        Thanks for the reply.
        
        BOSHConfiguration config = new BOSHConfiguration(false,"myipaddress", 5222, "/http-bind", "myservicename");
        
        Connection manger port : 5333 or Httpbind port : 7070 or default port : 5222 here which port number do I need to use
        
        Thanks
        
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        Protected
        8 posts since
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        Oct 27, 2011 11:59 PM (in response to Kristam269)
        Re: Smack over http
        
        You need to use the BOSH port (http-bind): 7070 or whatever your server is configured for
        
        ejabberd default one is 5280, openfire 7070.
        
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        Kristam269
        35 posts since
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        Oct 28, 2011 12:43 AM (in response to Protected)
        Re: Smack over http
        
        I am using default openfire HTTP Binding port 7070 and enabled in Admin Console.
        
        Getting NullPointerException in XLightWebResponse.java (line number :188)
        httpResp = future.getResponse();
        System.out.println("httpResp:"+httpResp);
        byte[] data = httpResp.getBlockingBody().readBytes(); ------> getting error here
        and after that getting Timeout Reached Exception.
        
        Output in java console
        
        httpResp:HTTP/1.1 302 Found
        Server: Jetty(7.0.2-SNAPSHOT)
        Content-Length: 0
        Location: http://myipaddress:7070/http-bind/
        
        Exception in thread "BOSHClient[32389396]: Receive thread" java.lang.NullPointerException
        at com.kenai.jbosh.XLightWebResponse.awaitResponse(XLightWebResponse.java:188)
        at com.kenai.jbosh.XLightWebResponse.getBody(XLightWebResponse.java:166)
        at com.kenai.jbosh.BOSHClient.processExchange(BOSHClient.java:1056)
        at com.kenai.jbosh.BOSHClient.processMessages(BOSHClient.java:1000)
        at com.kenai.jbosh.BOSHClient.access$0(BOSHClient.java:970)
        at com.kenai.jbosh.BOSHClient$1.run(BOSHClient.java:211)
        at java.lang.Thread.run(Unknown Source)
        
        Thanks
        
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        Kristam269
        35 posts since
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        Oct 28, 2011 12:11 AM (in response to Kristam269)
        Re: Smack over http
        
        Just I have downloaded the following jars from this thread
        
        smack.jar, xlightweb.jar, xlightweb-2.13.2-jar-with-dependencies.jar, xpp3.jar, xSocket.jar, smack-bosh-backport.jar
        
        and the remaining jars from Google(Smack 3.2.1)
        
        smackx.jar, smackx-debug.jar, smackx-jingle.jar, dom4j-1.6.1.jar
        
        Added all these jars to Build path and after that I have tried with 5222 / 5333 / 7070 still getting the same error.
        
        Can you please let me know is there any code changes are required other than BOSHClient.java
        
        Thanks
        
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        Kristam269
        35 posts since
        Oct 14, 2011
        
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        Oct 28, 2011 7:05 AM (in response to Kristam269)
        Smack over http
        
        Thank you so much for your help.
        
        Finally I am able to connect with Openfire using BOSH after I added the trailing slash.
        
        BOSHConfiguration config = new BOSHConfiguration(false,
        "myipaddress", 7070, "/http-bind/", "myservicename");
        
        Without trailing slash I was getting Null pointer exception.
        
        Thanks,
        
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Jan 11, 2010 10:48 PM

Smack over http

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