modules/phpfreechat/handler.php

<?php
// $Id: handler.php,v 1.3.2.10 2007/12/07 19:35:55 owahab Exp $

// Original implementation of locating Drupal root from dursh module by Moshe Weitzman.
define('PHPFREECHAT_DRUPAL_BOOTSTRAP', 'includes/bootstrap.inc');

/**
 * Exhaustive depth-first search to try and locate the Drupal root directory.
 * This makes it possible to run drush from a subdirectory of the drupal root.
 */
function _phpfreechat_locate_root() {
  $path = getcwd();
  // Convert windows paths.
  $path = str_replace('\\','/', $path);
  // Check the current path.
  if (file_exists($path . '/' . PHPFREECHAT_DRUPAL_BOOTSTRAP)) {
    return $path;
  }
  // Move up dir by dir and check each.
  while ($path = _phpfreechat_locate_root_moveup($path)) {
    if (file_exists($path . '/' . PHPFREECHAT_DRUPAL_BOOTSTRAP)) {
      return $path;
    }
  }
  return FALSE;
}

function _phpfreechat_locate_root_moveup($path) {
  if (empty($path)) {
    return FALSE;
  }
  $path = explode('/', $path);
  // Move one directory up.
  array_pop($path);
  return implode($path, '/');
}

/**
 * Bootstrap Drupal.
 */
// Change to Drupal root dir.
chdir(_phpfreechat_locate_root());
// Drupal will probably miscalculate the base_url if we're bootstrapping from 
// handler.php
if (!isset($base_url)) {
  $base_root = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
  // As $_SERVER['HTTP_HOST'] is user input, ensure it only contains
  // characters allowed in hostnames.
  $base_url = $base_root .= '://'. preg_replace('/[^a-z0-9-:._]/i', '', $_SERVER['HTTP_HOST']);
  // $_SERVER['SCRIPT_NAME'] can, in contrast to $_SERVER['PHP_SELF'], not
  // be modified by a visitor.
  // Also use $_SERVER['HTTP_REFERRER'] to correlate with original bootstrap
  $base_path = explode('/', $_SERVER['HTTP_REFERER']);
  $script_path = explode('/', $_SERVER['SCRIPT_NAME']);
  $base_url .= implode('/', array_intersect($base_path, $script_path));
}
// Bootstrap Drupal.
require_once './includes/bootstrap.inc';
drupal_bootstrap(DRUPAL_BOOTSTRAP_SESSION);
// Initialize configuration variables, using values from settings.php if available.
$conf = variable_init(isset($conf) ? $conf : array());
// Add file.inc for various file functions used in phpfreechat
require_once './includes/file.inc';
// Add common.inc to be able to use drupal_get_path later
require_once './includes/common.inc';
// Add user module to handle user permissions in phpfreechat
require_once drupal_get_path('module', 'user') .'/user.module';
// Starting phpfreechat module
require_once drupal_get_path('module', 'phpfreechat') .'/phpfreechat.module';
// Load global params
$params = phpfreechat_load_params();
// We will need to load the current node
if (!function_exists('arg')) {
  // Use HTTP_REFERER to extract the node ID
  $path = str_replace(array($base_url .'/', '/?q='), '', $_SERVER['HTTP_REFERER']);
  // Get the real path from the current request
  require_once './includes/path.inc';
  $args = explode('/', drupal_get_normal_path($path));
  $node = db_fetch_object(db_query('SELECT * FROM {node} n INNER JOIN {phpfreechat} pfc ON pfc.nid = n.nid WHERE n.nid = %d', $args[1]));
  if ($_SESSION['drupal_user']) {
    $user =& $_SESSION['drupal_user'];
  }
}
// Prepare params for current node
$params = phpfreechat_prepare_params($params, $node, $user);
// Start/resume a chat room
require_once drupal_get_path('module', 'phpfreechat') .'/phpfreechat/src/phpfreechat.class.php';
$chat = new phpFreeChat($params);
?>
1	<?php
2	// $Id: handler.php,v 1.3.2.10 2007/12/07 19:35:55 owahab Exp $
3
4	// Original implementation of locating Drupal root from dursh module by Moshe Weitzman.
5	define('PHPFREECHAT_DRUPAL_BOOTSTRAP', 'includes/bootstrap.inc');
6
7	/**
8	* Exhaustive depth-first search to try and locate the Drupal root directory.
9	* This makes it possible to run drush from a subdirectory of the drupal root.
10	*/
11	function _phpfreechat_locate_root() {
12	$path = getcwd();
13	// Convert windows paths.
14	$path = str_replace('\\','/', $path);
15	// Check the current path.
16	if (file_exists($path . '/' . PHPFREECHAT_DRUPAL_BOOTSTRAP)) {
17	return $path;
18	}
19	// Move up dir by dir and check each.
20	while ($path = _phpfreechat_locate_root_moveup($path)) {
21	if (file_exists($path . '/' . PHPFREECHAT_DRUPAL_BOOTSTRAP)) {
22	return $path;
23	}
24	}
25	return FALSE;
26	}
27
28	function _phpfreechat_locate_root_moveup($path) {
29	if (empty($path)) {
30	return FALSE;
31	}
32	$path = explode('/', $path);
33	// Move one directory up.
34	array_pop($path);
35	return implode($path, '/');
36	}
37
38	/**
39	* Bootstrap Drupal.
40	*/
41	// Change to Drupal root dir.
42	chdir(_phpfreechat_locate_root());
43	// Drupal will probably miscalculate the base_url if we're bootstrapping from
44	// handler.php
45	if (!isset($base_url)) {
46	$base_root = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
47	// As $_SERVER['HTTP_HOST'] is user input, ensure it only contains
48	// characters allowed in hostnames.
49	$base_url = $base_root .= '://'. preg_replace('/[^a-z0-9-:._]/i', '', $_SERVER['HTTP_HOST']);
50	// $_SERVER['SCRIPT_NAME'] can, in contrast to $_SERVER['PHP_SELF'], not
51	// be modified by a visitor.
52	// Also use $_SERVER['HTTP_REFERRER'] to correlate with original bootstrap
53	$base_path = explode('/', $_SERVER['HTTP_REFERER']);
54	$script_path = explode('/', $_SERVER['SCRIPT_NAME']);
55	$base_url .= implode('/', array_intersect($base_path, $script_path));
56	}
57	// Bootstrap Drupal.
58	require_once './includes/bootstrap.inc';
59	drupal_bootstrap(DRUPAL_BOOTSTRAP_SESSION);
60	// Initialize configuration variables, using values from settings.php if available.
61	$conf = variable_init(isset($conf) ? $conf : array());
62	// Add file.inc for various file functions used in phpfreechat
63	require_once './includes/file.inc';
64	// Add common.inc to be able to use drupal_get_path later
65	require_once './includes/common.inc';
66	// Add user module to handle user permissions in phpfreechat
67	require_once drupal_get_path('module', 'user') .'/user.module';
68	// Starting phpfreechat module
69	require_once drupal_get_path('module', 'phpfreechat') .'/phpfreechat.module';
70	// Load global params
71	$params = phpfreechat_load_params();
72	// We will need to load the current node
73	if (!function_exists('arg')) {
74	// Use HTTP_REFERER to extract the node ID
75	$path = str_replace(array($base_url .'/', '/?q='), '', $_SERVER['HTTP_REFERER']);
76	// Get the real path from the current request
77	require_once './includes/path.inc';
78	$args = explode('/', drupal_get_normal_path($path));
79	$node = db_fetch_object(db_query('SELECT * FROM {node} n INNER JOIN {phpfreechat} pfc ON pfc.nid = n.nid WHERE n.nid = %d', $args[1]));
80	if ($_SESSION['drupal_user']) {
81	$user =& $_SESSION['drupal_user'];
82	}
83	}
84	// Prepare params for current node
85	$params = phpfreechat_prepare_params($params, $node, $user);
86	// Start/resume a chat room
87	require_once drupal_get_path('module', 'phpfreechat') .'/phpfreechat/src/phpfreechat.class.php';
88	$chat = new phpFreeChat($params);
89	?>