Re: Trouble sending data via TCP socket

On Mon, May 15, 2006 9:15 pm, J. King wrote: > To further my understanding of how Jabber works I have decided I > should > try and write my own XMPP implementation in PHP. However, I've run > into > trouble rather quickly. > > To connect to a Jabber server, one must open a TCP socket to the > server > (typically through port 5269) send an XML-based stream header, wait > for > the server's confirmation and then log in, etc. As an initial test I > tried to open a TCP socket, send a stream header, get the server's > response, then disconnect. I did so thusly: > > $server = "jabber.org"; //example server > $port = 5269; //default port > $nsStream = "http://etherx.jabber.org/streams"; // > Streams > namespace > > $socket = stream_socket_client("tcp://$server:$port"); > $header = "<stream:stream to='$server' xmlns='jabber:client' > xmlns:stream='$nsClient' xml:lang='en' version='1.0'>"; You might maybe need a newline after all that. And I'd double-check that XML lets you use ' instead of " for attribut values, or whatever they are called, cuz I've only ever seen " that I can recall. > fwrite($socket, $header); //send header > echo stream_get_contents($socket); //get server confirmation > > //close connection > fwrite($socket, "</stream:stream>"); > fclose($socket); > > I'm supposed to get something like this in reply (taken from my > desktop > Jabber client's debug window): > > <?xml version='1.0'?> > <stream:stream > xmlns:stream='http://etherx.jabber.org/streams' > id='4468F937' xmlns='jabber:client' > from='jabber.org'> > > Instead, I get this error message: > > <stream:error> > <invalid-namespace > xmlns='urn:ietf:params:xml:ns:xmpp-streams'/> > </stream:error> > > That I get a conformant Jabber error message suggests that I -am- at > least > connecting to the server properly, but that the data is not getting to > the > server intact. I am certain that the XML header is correct: I also > tested > another PHP Jabber implementation[1] with the same result, even though > a > search of this mailing list suggests that said implementation has been > known to work for other people. Since I tested it on two different > machines (my home Windows computer and a Linux Dreamhost Web server) > using > three different versions of PHP (PHP 5.1.4 Winodws CLI, PHP 4.3.3 > Windows > CLI, PHP 5.1.1 Linux FastCGI), it's pretty clear that it's not a bug > in > the version of PHP I initially tested on. I also tried connecting to > three different Jabber servers (my private dark-phantasy server, > jabber.org, and a test Wildfire server on my colleague's machine) and > all > three gave me similar errors (with differing levels of spec > compliance...). > > In short, I am stumped. If anyone with some experience in these > matters > could shed some light on my problem I would be most grateful. > > [1] <http://cjphp.netflint.net/> > > -- > J. King > http://jking.dark-phantasy.com/ > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- Like Music? http://l-i-e.com/artists.htm