luos/gulliver/system/class.webResource.php

<?php
/**
 * class.webResource.php
 *  
 * ProcessMaker Open Source Edition
 * Copyright (C) 2004 - 2008 Colosa Inc.23
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * For more information, contact Colosa Inc, 2566 Le Jeune Rd., 
 * Coral Gables, FL, 33134, USA, or email info@colosa.com.
 * 
 */
/* Web Resource  (v1.0 PHP4)
 * This class permit create PHP/Javascript classes accesible by
 *  HTTPRequest (see skins/grest.js)
 * _Function = don't encode
 * JS_function = javascript function.
 * @example: h2b2x/territoriesAjax.php
 * @dependencies: grest.js
 */
class WebResource
{
  var $_uri;

  /**
   * WebResource
   *
   * @param  string $uri
   * @param  string $post
   *
   * @return none
   */     
  function WebResource($uri, $post)
  {
    $this->_uri=$uri;
    if (isset($post['function'])&&$post['function']!='') {
      /*Call a function*/
      header('Content-Type: text/json');
      $parameters=json_decode((urldecode($post['parameters'])));
      $paramsRef=array();
      foreach($parameters as $key => $value)
      {
        if (is_string($key)) $paramsRef[]="\$parameters['".addcslashes($key,'\\\'')."']";
        else $paramsRef[]='$parameters['.$key.']';
      }
      $res=eval('return ($this->'.$post['function'].'('.implode(',',$paramsRef).'));');
      $res=G::json_encode($res);
      print($res);
    }
    else {
      /*Print class definition*/
      $this->_encode();
    }
  }
  
  /**
   * _encode
   *
   * @return none
   */     
  function _encode()
  {
    header('Content-Type: text/json');
    $methods=get_class_methods(get_class($this));
    print('{');
    $first = true;
    foreach($methods as $method) {
      //To avoid PHP version incompatibilities, put the $method name in lowercase
      $method=strtolower($method);
      if ((substr($method,0,1)==='_')||
          (strcasecmp($method,'WebResource')==0)||
          (strcasecmp($method,get_class($this))==0)
         )
      {
      }
      elseif (strcasecmp(substr($method,0,3),'js_')==0)
      {
        if (!$first) print(',');
        $this->{$method}();
        $first=false;
      }
      else
      {
        if (!$first) print(',');
        print(
        $method.
        ':function(){return __wrCall("'.
        addslashes($this->_uri).
        '","'.$method.'",arguments);}'
        );
        $first=false;
      }
    }
    print('}');
  }
}
/* end class WebResource */

if (!function_exists('json_encode')) {
  G::LoadThirdParty('pear/json','class.json');
  function json_encode(&$value) {
    $json=& new Services_JSON;
    return $json->encode($value);
  }
}

if (!function_exists('json_decode')) {
  G::LoadThirdParty('pear/json','class.json');
  function json_decode(&$value) {
    $json=& new Services_JSON;
    return $json->decode($value);
  }
}