Create and process a xml document

@amrigoJan 29.2006

Hi !

I need do generate a XML document , something like this:
<USER>
<LOGIN>username</LOGIN>
<PASSWORD>userpass</PASSWORD>
</USER>
and send this to a document that is in ~~[url]~~http://anywhere/scripts/somewebservice.dll/login[/url]

I’d like know how to create the xml document and how can i send this document to that URL. So, the program receive this xml and the login will happen.

Thanks in advance!

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PHP

25 Comments(s) _↴

@amrigoauthorJan 29.2006 — #any idea?!

@chazzyJan 29.2006 — #generating that document is merely echo'ing the various elements and their values. If you need help understanding how to create a regular XML document, i'd recommend the XML forum over this.

@LiLcRaZyFuZzYJan 29.2006 — #can't you pass the values with sessions?

where would the values in the XML come from?

and, what version of PHP do you have?

@amrigoauthorJan 30.2006 — #Hi ?

I already know about XML.

I just dont know how to pass this generated XMLto this url : ?

http://anywhere/scripts/somewebservice.dll/login

wich activates a webservice .

the xml have this format :

<?xml version="1.0" encoding=“ISO-8859-1” ?>

<USER>

<LOGIN>User</LOGIN>

<PASSWORD>Pass</PASSWORD>

<FORCELOGIN>value</FORCELOGIN>

</USER>

How can i do this ? :eek:

@Markbad311Jan 30.2006 — #I will tell you right now your XML document will fail miserably if you need to have more then on entry in there. You need a Root Element

[code=html]
 <?xml version="1.0" encoding=“ISO-8859-1” ?>
 <users>
 <user>
 <login>User</login>
 <password>Pass</password>
 <forcelogin>value</forcelogin> 
 </user>
 </users>
 [/code]

Where is the Schema? Knowing about XML is good but to make XML documents that ARE extensible and VALID as well as WELL-FORMED is the key when creating ANY XML doc at anytime. I am an XML finatic. Use the Russian Doll Model it makes life 100% easier.

@NogDogJan 30.2006 — #Perhaps use the [url=http://www.php.net/curl]Curl functions[/url]?

@amrigoauthorJan 30.2006 — #How can i use curl to do this task ???

function send_xml( ){

$https_url ="https://somewebsite/scripts/somewebservice.dll/login";

$ch = curl_init( $https_url);

curl_setopt ($ch, CURLOPT_HEADER, 0);

curl_exec( $ch );

curl_close ($ch);

}

$ch = curl_init("http://somewebsite/scripts/somewebservice.dll/login/");

$fp = fopen("generatedxml.txt", "w");

curl_setopt($ch, CURLOPT_FILE, $fp);

curl_setopt($ch, CURLOPT_HEADER, 0);

curl_exec($ch);

curl_close($ch);

fclose($fp);

@amrigoauthorJan 31.2006 — #Hi

May i can change the question :

How can i send a xml document to a know webservice like this:

http://somewebsite/scripts/somewebservice/login

the xml have this format :

<user>

<login>123</login>

<password>abc</password>

</user>

Thank´s in advance

@LiLcRaZyFuZzYJan 31.2006 — #where will the username and password be defined?

@amrigoauthorFeb 01.2006 — #i will pass via post

this script i am trying returns me a error :

In a xml document only top level elements are allowed

: error at processing this url :

here is the script :

how it works and how can i fix this bug

<?

function Communicate($xml,$service) {

$HOST = "www.someweirdwebservice.com";

$sock = fsockopen($HOST, 80, $errno, $errstr, 30);

if (!$sock) {

die("$errstr ($errno)n");

}

 fwrite($sock, "POST $service HTTP/1.0rn");
   //fwrite($sock, "Host: secure.example.comrn");
   fwrite($sock, "Content-type: application/x-www-form-urlencodedrn");
   fwrite($sock, "Content-length: " . strlen($data) . "rn");
   fwrite($sock, "Accept: */*rn");
   fwrite($sock, "rn");
   fwrite($sock, "$xmlrn");
   fwrite($sock, "rn");
 
   $headers = "";
   while ($str = trim(fgets($sock, 4096)))
   $headers .= "$strn";
 
   echo "n";
   $body = "";
   while (!feof($sock))
   $body .= fgets($sock, 4096);
 
   fclose($sock);
 
   return $body;
  }
 
  $USER = "loginhere";
  $PASSWD = "passwdhere";
  $service = "/scripts/SomeWebService.dll/login"; 
  $xml = '<?xml version="1.0" encoding="ISO-8859-1" ?><USER><LOGIN>loginhere</LOGIN><PASSWORD>passwdhere</PASSWORD></USER>';
 
  echo Communicate($xml,$service);

?>

thank´s in advance!!

@chazzyFeb 01.2006 — #ok...i think the issue's more like "Why are you doing this?"

- if you're using a web service, why does your communicate both write and read the same data? you should be sending the data over, therefore, you should only be writing it.

- the receiving script then opens the file and reads it.

@amrigoauthorFeb 01.2006 — #how can i fix it ?

@amrigoauthorFeb 03.2006 — #Wich is the best way to do this task ?

xml-rpc ? soap?

I need do generate a XML document , something like this:

<USER>

<LOGIN>username</LOGIN>

<PASSWORD>userpass</PASSWORD>

</USER>

and send this to a document that is in http://anywhere/scripts/somewebservice.dll/login

I'd like know how to create the xml document and how can i send this document to that URL. So, the program receive this xml and the login will happen.

@chazzyFeb 03.2006 — #Don't worry about processing the XML, unless you start handling the inbound response. You have to see how the webservice handles the input (ie does it recognize login and password parameters).

Yes, use SOAP if that's what they're telling you to use. They should be providing you with the specifications that you need to follow as well.

@bokehFeb 03.2006 — #In order to do this you need to know in what form the receiving URL is expecting the data and by what method. Without the answer to this question no one will be able to give you a valid answer.

@amrigoauthorFeb 03.2006 — #i have to send xml via post method

@amrigoauthorFeb 03.2006 — #Don't worry about processing the XML, unless you start handling the inbound response. You have to see how the webservice handles the input (ie does it recognize login and password parameters).

Yes, use SOAP if that's what they're telling you to use. They should be providing you with the specifications that you need to follow as well.[/QUOTE]

Hi!

I have just the adress and the xml format and no more documentation at all!

i know just the adress and the xml format

@chazzyFeb 03.2006 — #But what are your specifications? What fields need to have values in the XML for it to work?

@bokehFeb 03.2006 — #i have to send xml via post method[/QUOTE]Ok... you need to send by the post method but as what? A string? A file? what? Where can we read the specs.

@amrigoauthorFeb 06.2006 — #The only specification i receive was :

this url :

http://anywhere/scripts/somewebservice.dll/login

must receive this xml :

<USER>

<LOGIN>username</LOGIN>

<PASSWORD>userpass</PASSWORD>

</USER>

and will send a xml back.

@bokehFeb 06.2006 — #http://anywhere/scripts/somewebservice.dll/login[/QUOTE]With such a cryptic reply how can anyone help you?

@amrigoauthorFeb 06.2006 — #Hi

Yes i know !! but all i have is this spec:

4)LOGIN :

4.1) –Server Access:

4.1.1) Caminho: /login

Exemplo: http://localhost/scripts/SomeWebService.dll/login

4.1.2) Request: (XML send from the software wich shows the data for the WebService)

Send data of the user and password to access the server followning the example:

<?xml version="1.0" encoding=“ISO-8859-1” ?>

<USER>

<LOGIN>Username</LOGIN>

<PASSWORD>Password</PASSWORD>

<FORCELOGIN>Value</FORCELOGIN> // 0= do not force login 1= Force login

</USER>

4.1.3) Answer from the WebService: (XML send from the WebService to the software wich shows the data).

<USER>

<ID>User identifier (ID)</ID>

<CLIENT_ID>Identifier (ID) of the Client of the user</CLIENT_ID>

<TYPE_ID>Type Identifier of the user</TYPE_ID>

</USER>

@bokehFeb 06.2006 — #Well you will need to get some proper instructions or give up.

@amrigoauthorFeb 06.2006 — #i am trying to use Pear, Net with httprequest class

[code=php]
 <?php
 // +-----------------------------------------------------------------------+
 // | Copyright (c) 2002-2003, Richard Heyes                                |
 // | All rights reserved.                                                  |
 // |                                                                       |
 +-----------------------------------------------------------------------+
 // | Author: Richard Heyes <[email protected]>                           |
 // +-----------------------------------------------------------------------+
 //
 // $Id: Request.php,v 1.33 2003/10/26 10:28:28 avb Exp $
 //
 // HTTP_Request Class
 //
 // Simple example, (Fetches yahoo.com and displays it):
 //
 // $a = &new HTTP_Request('http://www.yahoo.com/');
 // $a->sendRequest();
 // echo $a->getResponseBody();
 //
 
 require_once('./Net/Socket.php');
 require_once('./Net/URL.php');
 
 define('HTTP_REQUEST_METHOD_GET',     'GET',     true);
 define('HTTP_REQUEST_METHOD_HEAD',    'HEAD',    true);
 define('HTTP_REQUEST_METHOD_POST',    'POST',    true);
 define('HTTP_REQUEST_METHOD_PUT',     'PUT',     true);
 define('HTTP_REQUEST_METHOD_DELETE',  'DELETE',  true);
 define('HTTP_REQUEST_METHOD_OPTIONS', 'OPTIONS', true);
 define('HTTP_REQUEST_METHOD_TRACE',   'TRACE',   true);
 
 define('HTTP_REQUEST_HTTP_VER_1_0', '1.0', true);
 define('HTTP_REQUEST_HTTP_VER_1_1', '1.1', true);
 
 class HTTP_Request {
 
  /**
  * Full url
  * @var string
  */
  var $_url;
 
  */
  function HTTP_Request($url, $params = array())
  {
   $this->_sock           = &new Net_Socket();
   $this->_method         =  HTTP_REQUEST_METHOD_GET;
   $this->_http           =  HTTP_REQUEST_HTTP_VER_1_1;
   $this->_requestHeaders = array();
   $this->_postData       = null;
 
   $this->_user = null;
   $this->_pass = null;
 
   $this->_proxy_host = null;
   $this->_proxy_port = null;
   $this->_proxy_user = null;
   $this->_proxy_pass = null;
 
   $this->_allowRedirects = false;
   $this->_maxRedirects   = 3;
   $this->_redirects      = 0;
 
   $this->_timeout  = null;
   $this->_response = null;
 
   foreach ($params as $key => $value) {
   $this->{'_' . $key} = $value;
   }
 
   $this->setURL($url);
 
   // Default useragent
   $this->addHeader('User-Agent', 'PEAR HTTP_Request class ( http://pear.php.net/ )');
 
   // Default Content-Type
   $this->addHeader('Content-Type', 'application/x-www-form-urlencoded');
 
   // Make sure keepalives dont knobble us
   $this->addHeader('Connection', 'close');
 
   // Basic authentication
   if (!empty($this->_user)) {
   $this->_requestHeaders['Authorization'] = 'Basic ' . base64_encode($this->_user . ':' . $this->_pass);
   }
 
   // Use gzip encoding if possible
   if (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http && extension_loaded('zlib')) {
   $this->addHeader('Accept-Encoding', 'gzip');
   }
  }
 
 .... //all the function here 
 
 /**
 * Notifies all registered listeners of an event.
 * 
 * @param    string  Event name
 * @param    mixed   Additional data
 * @access   private
 * @see HTTP_Request::_notify()
 */
 function _notify($event, $data = null)
 {
 foreach (array_keys($this->_listeners) as $id) {
 $this->_listeners[$id]->update($this, $event, $data);
 }
 }
 } // End class HTTP_Response
 ?>
 
 [/code]

and calling the webservices using this code :

[code=php]
  $XML  = $XML_HEADER;
 $XML .= "<USER>";
 $XML .= "<LOGIN>$login</LOGIN>";
 $XML .= "<PASSWORD>$pass</PASSWORD>";
 $XML .= "</USER>";
 
  // logando no WebService
  require_once('Request.php');
  $Response = '';
  $Req = &new HTTP_Request($WebService . 'login');
  $Req->setMethod(HTTP_REQUEST_METHOD_POST);
  $Req->clearPostData();
  $Req->addRawPostData($XML,True);
  $Req->sendRequest();
  $Response = $Req->getResponseBody();
 [/code]

I could not use this code from an external web server other than the one where the webservice is installed . webservices can be connfigured to beahave this way ? it can be configured to be acessed from a external webserver ? in order to make tests ?

Thank´s in advance

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