removed unescaped variable that could be used in XSS
diff --git a/system/libraries/Router.php b/system/libraries/Router.php
index 6d925a1..8dfc825 100644
--- a/system/libraries/Router.php
+++ b/system/libraries/Router.php
@@ -1,561 +1,561 @@
-<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Code Igniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package CodeIgniter
- * @author Rick Ellis
- * @copyright Copyright (c) 2006, pMachine, Inc.
- * @license http://www.codeignitor.com/user_guide/license.html
- * @link http://www.codeigniter.com
- * @since Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Router Class
- *
- * Parses URIs and determines routing
- *
- * @package CodeIgniter
- * @subpackage Libraries
- * @author Rick Ellis
- * @category Libraries
- * @link http://www.codeigniter.com/user_guide/general/routing.html
- */
-class CI_Router {
-
- var $config;
- var $uri_string = '';
- var $segments = array();
- var $rsegments = array();
- var $routes = array();
- var $error_routes = array();
- var $class = '';
- var $method = 'index';
- var $directory = '';
- var $uri_protocol = 'auto';
- var $default_controller;
- var $scaffolding_request = FALSE; // Must be set to FALSE
-
- /**
- * Constructor
- *
- * Runs the route mapping function.
- */
- function CI_Router()
- {
- $this->config =& load_class('Config');
- $this->_set_route_mapping();
- log_message('debug', "Router Class Initialized");
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Set the route mapping
- *
- * This function determines what should be served based on the URI request,
- * as well as any "routes" that have been set in the routing config file.
- *
- * @access private
- * @return void
- */
- function _set_route_mapping()
- {
- // Are query strings enabled in the config file?
- // If so, we're done since segment based URIs are not used with query strings.
- if ($this->config->item('enable_query_strings') === TRUE AND isset($_GET[$this->config->item('controller_trigger')]))
- {
- $this->set_class($_GET[$this->config->item('controller_trigger')]);
-
- if (isset($_GET[$this->config->item('function_trigger')]))
- {
- $this->set_method($_GET[$this->config->item('function_trigger')]);
- }
-
- return;
- }
-
- // Load the routes.php file.
- @include(APPPATH.'config/routes'.EXT);
- $this->routes = ( ! isset($route) OR ! is_array($route)) ? array() : $route;
- unset($route);
-
- // Set the default controller so we can display it in the event
- // the URI doesn't correlated to a valid controller.
- $this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);
-
- // Fetch the complete URI string
- $this->uri_string = $this->_get_uri_string();
-
- // If the URI contains only a slash we'll kill it
- if ($this->uri_string == '/')
- {
- $this->uri_string = '';
- }
-
- // Is there a URI string? If not, the default controller specified in the "routes" file will be shown.
- if ($this->uri_string == '')
- {
- if ($this->default_controller === FALSE)
- {
- show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file.");
- }
-
- $this->set_class($this->default_controller);
- $this->set_method('index');
-
- log_message('debug', "No URI present. Default controller set.");
- return;
- }
- unset($this->routes['default_controller']);
-
- // Do we need to remove the suffix specified in the config file?
- if ($this->config->item('url_suffix') != "")
- {
- $this->uri_string = preg_replace("|".preg_quote($this->config->item('url_suffix'))."$|", "", $this->uri_string);
- }
-
- // Explode the URI Segments. The individual segments will
- // be stored in the $this->segments array.
- foreach(explode("/", preg_replace("|/*(.+?)/*$|", "\\1", $this->uri_string)) as $val)
- {
- // Filter segments for security
- $val = trim($this->_filter_uri($val));
-
- if ($val != '')
- $this->segments[] = $val;
- }
-
- // Parse any custom routing that may exist
- $this->_parse_routes();
-
- // Re-index the segment array so that it starts with 1 rather than 0
- $this->_reindex_segments();
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Compile Segments
- *
- * This function takes an array of URI segments as
- * input, and puts it into the $this->segments array.
- * It also sets the current class/method
- *
- * @access private
- * @param array
- * @param bool
- * @return void
- */
- function _compile_segments($segments = array())
- {
- $segments = $this->_validate_segments($segments);
-
- if (count($segments) == 0)
- {
- return;
- }
-
- $this->set_class($segments[0]);
-
- if (isset($segments[1]))
- {
- // A scaffolding request. No funny business with the URL
- if ($this->routes['scaffolding_trigger'] == $segments[1] AND $segments[1] != '_ci_scaffolding')
- {
- $this->scaffolding_request = TRUE;
- unset($this->routes['scaffolding_trigger']);
- }
- else
- {
- // A standard method request
- $this->set_method($segments[1]);
- }
- }
-
- // Update our "routed" segment array to contain the segments.
- // Note: If there is no custom routing, this array will be
- // identical to $this->segments
- $this->rsegments = $segments;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Validates the supplied segments. Attempts to determine the path to
- * the controller.
- *
- * @access private
- * @param array
- * @return array
- */
- function _validate_segments($segments)
- {
- // Does the requested controller exist in the root folder?
- if (file_exists(APPPATH.'controllers/'.$segments[0].EXT))
- {
- return $segments;
- }
-
- // Is the controller in a sub-folder?
- if (is_dir(APPPATH.'controllers/'.$segments[0]))
- {
- // Set the directory and remove it from the segment array
- $this->set_directory($segments[0]);
- $segments = array_slice($segments, 1);
-
- if (count($segments) > 0)
- {
- // Does the requested controller exist in the sub-folder?
- if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT))
- {
- show_404();
- }
- }
- else
- {
- $this->set_class($this->default_controller);
- $this->set_method('index');
-
- // Does the default controller exist in the sub-folder?
- if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$this->default_controller.EXT))
- {
- $this->directory = '';
- return array();
- }
-
- }
-
- return $segments;
- }
-
- // Can't find the requested controller...
- show_404();
- }
-
- // --------------------------------------------------------------------
- /**
- * Re-index Segments
- *
- * This function re-indexes the $this->segment array so that it
- * starts at 1 rather then 0. Doing so makes it simpler to
- * use functions like $this->uri->segment(n) since there is
- * a 1:1 relationship between the segment array and the actual segments.
- *
- * @access private
- * @return void
- */
- function _reindex_segments()
- {
- // Is the routed segment array different then the main segment array?
- $diff = (count(array_diff($this->rsegments, $this->segments)) == 0) ? FALSE : TRUE;
-
- $i = 1;
- foreach ($this->segments as $val)
- {
- $this->segments[$i++] = $val;
- }
- unset($this->segments[0]);
-
- if ($diff == FALSE)
- {
- $this->rsegments = $this->segments;
- }
- else
- {
- $i = 1;
- foreach ($this->rsegments as $val)
- {
- $this->rsegments[$i++] = $val;
- }
- unset($this->rsegments[0]);
- }
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Get the URI String
- *
- * @access private
- * @return string
- */
- function _get_uri_string()
- {
- if (strtoupper($this->config->item('uri_protocol')) == 'AUTO')
- {
- // If the URL has a question mark then it's simplest to just
- // build the URI string from the zero index of the $_GET array.
- // This avoids having to deal with $_SERVER variables, which
- // can be unreliable in some environments
- if (is_array($_GET) AND count($_GET) == 1)
- {
- // Note: Due to a bug in current() that affects some versions
- // of PHP we can not pass function call directly into it
- $keys = array_keys($_GET);
- return current($keys);
- }
-
- // Is there a PATH_INFO variable?
- // Note: some servers seem to have trouble with getenv() so we'll test it two ways
- $path = (isset($_SERVER['PATH_INFO'])) ? $_SERVER['PATH_INFO'] : @getenv('PATH_INFO');
- if ($path != '' AND $path != "/".SELF)
- {
- return $path;
- }
-
- // No PATH_INFO?... What about QUERY_STRING?
- $path = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING');
- if ($path != '')
- {
- return $path;
- }
-
- // No QUERY_STRING?... Maybe the ORIG_PATH_INFO variable exists?
- $path = (isset($_SERVER['ORIG_PATH_INFO'])) ? $_SERVER['ORIG_PATH_INFO'] : @getenv('ORIG_PATH_INFO');
- if ($path != '' AND $path != "/".SELF)
- {
- return $path;
- }
-
- // We've exhausted all our options...
- return '';
- }
- else
- {
- $uri = strtoupper($this->config->item('uri_protocol'));
-
- if ($uri == 'REQUEST_URI')
- {
- return $this->_parse_request_uri();
- }
-
- return (isset($_SERVER[$uri])) ? $_SERVER[$uri] : @getenv($uri);
- }
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Parse the REQUEST_URI
- *
- * Due to the way REQUEST_URI works it usually contains path info
- * that makes it unusable as URI data. We'll trim off the unnecessary
- * data, hopefully arriving at a valid URI that we can use.
- *
- * @access private
- * @return string
- */
- function _parse_request_uri()
- {
- if ( ! isset($_SERVER['REQUEST_URI']) OR $_SERVER['REQUEST_URI'] == '')
- {
- return '';
- }
-
- $request_uri = preg_replace("|/(.*)|", "\\1", str_replace("\\", "/", $_SERVER['REQUEST_URI']));
-
- if ($request_uri == '' OR $request_uri == SELF)
- {
- return '';
- }
-
- $fc_path = FCPATH;
- if (strpos($request_uri, '?') !== FALSE)
- {
- $fc_path .= '?';
- }
-
- $parsed_uri = explode("/", $request_uri);
-
- $i = 0;
- foreach(explode("/", $fc_path) as $segment)
- {
- if (isset($parsed_uri[$i]) AND $segment == $parsed_uri[$i])
- {
- $i++;
- }
- }
-
- $parsed_uri = implode("/", array_slice($parsed_uri, $i));
-
- if ($parsed_uri != '')
- {
- $parsed_uri = '/'.$parsed_uri;
- }
-
- return $parsed_uri;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Filter segments for malicious characters
- *
- * @access private
- * @param string
- * @return string
- */
- function _filter_uri($str)
- {
- if ($this->config->item('permitted_uri_chars') != '')
- {
- if ( ! preg_match("|^[".preg_quote($this->config->item('permitted_uri_chars'))."]+$|i", $str))
- {
- exit('The URI you submitted has disallowed characters: '.$str);
- }
- }
- return $str;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Parse Routes
- *
- * This function matches any routes that may exist in
- * the config/routes.php file against the URI to
- * determine if the class/method need to be remapped.
- *
- * @access private
- * @return void
- */
- function _parse_routes()
- {
- // Do we even have any custom routing to deal with?
- if (count($this->routes) == 0)
- {
- $this->_compile_segments($this->segments);
- return;
- }
-
- // Turn the segment array into a URI string
- $uri = implode('/', $this->segments);
- $num = count($this->segments);
-
- // Is there a literal match? If so we're done
- if (isset($this->routes[$uri]))
- {
- $this->_compile_segments(explode('/', $this->routes[$uri]));
- return;
- }
-
- // Loop through the route array looking for wild-cards
- foreach (array_slice($this->routes, 1) as $key => $val)
- {
- // Convert wild-cards to RegEx
- $key = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key));
-
- // Does the RegEx match?
- if (preg_match('#^'.$key.'$#', $uri))
- {
- // Do we have a back-reference?
- if (strpos($val, '$') !== FALSE AND strpos($key, '(') !== FALSE)
- {
- $val = preg_replace('#^'.$key.'$#', $val, $uri);
- }
-
- $this->_compile_segments(explode('/', $val));
- return;
- }
- }
-
- // If we got this far it means we didn't encounter a
- // matching route so we'll set the site default route
- $this->_compile_segments($this->segments);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Set the class name
- *
- * @access public
- * @param string
- * @return void
- */
- function set_class($class)
- {
- $this->class = $class;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Fetch the current class
- *
- * @access public
- * @return string
- */
- function fetch_class()
- {
- return $this->class;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Set the method name
- *
- * @access public
- * @param string
- * @return void
- */
- function set_method($method)
- {
- $this->method = $method;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Fetch the current method
- *
- * @access public
- * @return string
- */
- function fetch_method()
- {
- if ($this->method == $this->fetch_class())
- {
- return 'index';
- }
-
- return $this->method;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Set the directory name
- *
- * @access public
- * @param string
- * @return void
- */
- function set_directory($dir)
- {
- $this->directory = $dir.'/';
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Fetch the sub-directory (if any) that contains the requested controller class
- *
- * @access public
- * @return string
- */
- function fetch_directory()
- {
- return $this->directory;
- }
-
-}
-// END Router Class
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author Rick Ellis
+ * @copyright Copyright (c) 2006, pMachine, Inc.
+ * @license http://www.codeignitor.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Router Class
+ *
+ * Parses URIs and determines routing
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @author Rick Ellis
+ * @category Libraries
+ * @link http://www.codeigniter.com/user_guide/general/routing.html
+ */
+class CI_Router {
+
+ var $config;
+ var $uri_string = '';
+ var $segments = array();
+ var $rsegments = array();
+ var $routes = array();
+ var $error_routes = array();
+ var $class = '';
+ var $method = 'index';
+ var $directory = '';
+ var $uri_protocol = 'auto';
+ var $default_controller;
+ var $scaffolding_request = FALSE; // Must be set to FALSE
+
+ /**
+ * Constructor
+ *
+ * Runs the route mapping function.
+ */
+ function CI_Router()
+ {
+ $this->config =& load_class('Config');
+ $this->_set_route_mapping();
+ log_message('debug', "Router Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the route mapping
+ *
+ * This function determines what should be served based on the URI request,
+ * as well as any "routes" that have been set in the routing config file.
+ *
+ * @access private
+ * @return void
+ */
+ function _set_route_mapping()
+ {
+ // Are query strings enabled in the config file?
+ // If so, we're done since segment based URIs are not used with query strings.
+ if ($this->config->item('enable_query_strings') === TRUE AND isset($_GET[$this->config->item('controller_trigger')]))
+ {
+ $this->set_class($_GET[$this->config->item('controller_trigger')]);
+
+ if (isset($_GET[$this->config->item('function_trigger')]))
+ {
+ $this->set_method($_GET[$this->config->item('function_trigger')]);
+ }
+
+ return;
+ }
+
+ // Load the routes.php file.
+ @include(APPPATH.'config/routes'.EXT);
+ $this->routes = ( ! isset($route) OR ! is_array($route)) ? array() : $route;
+ unset($route);
+
+ // Set the default controller so we can display it in the event
+ // the URI doesn't correlated to a valid controller.
+ $this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);
+
+ // Fetch the complete URI string
+ $this->uri_string = $this->_get_uri_string();
+
+ // If the URI contains only a slash we'll kill it
+ if ($this->uri_string == '/')
+ {
+ $this->uri_string = '';
+ }
+
+ // Is there a URI string? If not, the default controller specified in the "routes" file will be shown.
+ if ($this->uri_string == '')
+ {
+ if ($this->default_controller === FALSE)
+ {
+ show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file.");
+ }
+
+ $this->set_class($this->default_controller);
+ $this->set_method('index');
+
+ log_message('debug', "No URI present. Default controller set.");
+ return;
+ }
+ unset($this->routes['default_controller']);
+
+ // Do we need to remove the suffix specified in the config file?
+ if ($this->config->item('url_suffix') != "")
+ {
+ $this->uri_string = preg_replace("|".preg_quote($this->config->item('url_suffix'))."$|", "", $this->uri_string);
+ }
+
+ // Explode the URI Segments. The individual segments will
+ // be stored in the $this->segments array.
+ foreach(explode("/", preg_replace("|/*(.+?)/*$|", "\\1", $this->uri_string)) as $val)
+ {
+ // Filter segments for security
+ $val = trim($this->_filter_uri($val));
+
+ if ($val != '')
+ $this->segments[] = $val;
+ }
+
+ // Parse any custom routing that may exist
+ $this->_parse_routes();
+
+ // Re-index the segment array so that it starts with 1 rather than 0
+ $this->_reindex_segments();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Compile Segments
+ *
+ * This function takes an array of URI segments as
+ * input, and puts it into the $this->segments array.
+ * It also sets the current class/method
+ *
+ * @access private
+ * @param array
+ * @param bool
+ * @return void
+ */
+ function _compile_segments($segments = array())
+ {
+ $segments = $this->_validate_segments($segments);
+
+ if (count($segments) == 0)
+ {
+ return;
+ }
+
+ $this->set_class($segments[0]);
+
+ if (isset($segments[1]))
+ {
+ // A scaffolding request. No funny business with the URL
+ if ($this->routes['scaffolding_trigger'] == $segments[1] AND $segments[1] != '_ci_scaffolding')
+ {
+ $this->scaffolding_request = TRUE;
+ unset($this->routes['scaffolding_trigger']);
+ }
+ else
+ {
+ // A standard method request
+ $this->set_method($segments[1]);
+ }
+ }
+
+ // Update our "routed" segment array to contain the segments.
+ // Note: If there is no custom routing, this array will be
+ // identical to $this->segments
+ $this->rsegments = $segments;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Validates the supplied segments. Attempts to determine the path to
+ * the controller.
+ *
+ * @access private
+ * @param array
+ * @return array
+ */
+ function _validate_segments($segments)
+ {
+ // Does the requested controller exist in the root folder?
+ if (file_exists(APPPATH.'controllers/'.$segments[0].EXT))
+ {
+ return $segments;
+ }
+
+ // Is the controller in a sub-folder?
+ if (is_dir(APPPATH.'controllers/'.$segments[0]))
+ {
+ // Set the directory and remove it from the segment array
+ $this->set_directory($segments[0]);
+ $segments = array_slice($segments, 1);
+
+ if (count($segments) > 0)
+ {
+ // Does the requested controller exist in the sub-folder?
+ if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT))
+ {
+ show_404();
+ }
+ }
+ else
+ {
+ $this->set_class($this->default_controller);
+ $this->set_method('index');
+
+ // Does the default controller exist in the sub-folder?
+ if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$this->default_controller.EXT))
+ {
+ $this->directory = '';
+ return array();
+ }
+
+ }
+
+ return $segments;
+ }
+
+ // Can't find the requested controller...
+ show_404();
+ }
+
+ // --------------------------------------------------------------------
+ /**
+ * Re-index Segments
+ *
+ * This function re-indexes the $this->segment array so that it
+ * starts at 1 rather then 0. Doing so makes it simpler to
+ * use functions like $this->uri->segment(n) since there is
+ * a 1:1 relationship between the segment array and the actual segments.
+ *
+ * @access private
+ * @return void
+ */
+ function _reindex_segments()
+ {
+ // Is the routed segment array different then the main segment array?
+ $diff = (count(array_diff($this->rsegments, $this->segments)) == 0) ? FALSE : TRUE;
+
+ $i = 1;
+ foreach ($this->segments as $val)
+ {
+ $this->segments[$i++] = $val;
+ }
+ unset($this->segments[0]);
+
+ if ($diff == FALSE)
+ {
+ $this->rsegments = $this->segments;
+ }
+ else
+ {
+ $i = 1;
+ foreach ($this->rsegments as $val)
+ {
+ $this->rsegments[$i++] = $val;
+ }
+ unset($this->rsegments[0]);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Get the URI String
+ *
+ * @access private
+ * @return string
+ */
+ function _get_uri_string()
+ {
+ if (strtoupper($this->config->item('uri_protocol')) == 'AUTO')
+ {
+ // If the URL has a question mark then it's simplest to just
+ // build the URI string from the zero index of the $_GET array.
+ // This avoids having to deal with $_SERVER variables, which
+ // can be unreliable in some environments
+ if (is_array($_GET) AND count($_GET) == 1)
+ {
+ // Note: Due to a bug in current() that affects some versions
+ // of PHP we can not pass function call directly into it
+ $keys = array_keys($_GET);
+ return current($keys);
+ }
+
+ // Is there a PATH_INFO variable?
+ // Note: some servers seem to have trouble with getenv() so we'll test it two ways
+ $path = (isset($_SERVER['PATH_INFO'])) ? $_SERVER['PATH_INFO'] : @getenv('PATH_INFO');
+ if ($path != '' AND $path != "/".SELF)
+ {
+ return $path;
+ }
+
+ // No PATH_INFO?... What about QUERY_STRING?
+ $path = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING');
+ if ($path != '')
+ {
+ return $path;
+ }
+
+ // No QUERY_STRING?... Maybe the ORIG_PATH_INFO variable exists?
+ $path = (isset($_SERVER['ORIG_PATH_INFO'])) ? $_SERVER['ORIG_PATH_INFO'] : @getenv('ORIG_PATH_INFO');
+ if ($path != '' AND $path != "/".SELF)
+ {
+ return $path;
+ }
+
+ // We've exhausted all our options...
+ return '';
+ }
+ else
+ {
+ $uri = strtoupper($this->config->item('uri_protocol'));
+
+ if ($uri == 'REQUEST_URI')
+ {
+ return $this->_parse_request_uri();
+ }
+
+ return (isset($_SERVER[$uri])) ? $_SERVER[$uri] : @getenv($uri);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Parse the REQUEST_URI
+ *
+ * Due to the way REQUEST_URI works it usually contains path info
+ * that makes it unusable as URI data. We'll trim off the unnecessary
+ * data, hopefully arriving at a valid URI that we can use.
+ *
+ * @access private
+ * @return string
+ */
+ function _parse_request_uri()
+ {
+ if ( ! isset($_SERVER['REQUEST_URI']) OR $_SERVER['REQUEST_URI'] == '')
+ {
+ return '';
+ }
+
+ $request_uri = preg_replace("|/(.*)|", "\\1", str_replace("\\", "/", $_SERVER['REQUEST_URI']));
+
+ if ($request_uri == '' OR $request_uri == SELF)
+ {
+ return '';
+ }
+
+ $fc_path = FCPATH;
+ if (strpos($request_uri, '?') !== FALSE)
+ {
+ $fc_path .= '?';
+ }
+
+ $parsed_uri = explode("/", $request_uri);
+
+ $i = 0;
+ foreach(explode("/", $fc_path) as $segment)
+ {
+ if (isset($parsed_uri[$i]) AND $segment == $parsed_uri[$i])
+ {
+ $i++;
+ }
+ }
+
+ $parsed_uri = implode("/", array_slice($parsed_uri, $i));
+
+ if ($parsed_uri != '')
+ {
+ $parsed_uri = '/'.$parsed_uri;
+ }
+
+ return $parsed_uri;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Filter segments for malicious characters
+ *
+ * @access private
+ * @param string
+ * @return string
+ */
+ function _filter_uri($str)
+ {
+ if ($this->config->item('permitted_uri_chars') != '')
+ {
+ if ( ! preg_match("|^[".preg_quote($this->config->item('permitted_uri_chars'))."]+$|i", $str))
+ {
+ exit('The URI you submitted has disallowed characters.');
+ }
+ }
+ return $str;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Parse Routes
+ *
+ * This function matches any routes that may exist in
+ * the config/routes.php file against the URI to
+ * determine if the class/method need to be remapped.
+ *
+ * @access private
+ * @return void
+ */
+ function _parse_routes()
+ {
+ // Do we even have any custom routing to deal with?
+ if (count($this->routes) == 0)
+ {
+ $this->_compile_segments($this->segments);
+ return;
+ }
+
+ // Turn the segment array into a URI string
+ $uri = implode('/', $this->segments);
+ $num = count($this->segments);
+
+ // Is there a literal match? If so we're done
+ if (isset($this->routes[$uri]))
+ {
+ $this->_compile_segments(explode('/', $this->routes[$uri]));
+ return;
+ }
+
+ // Loop through the route array looking for wild-cards
+ foreach (array_slice($this->routes, 1) as $key => $val)
+ {
+ // Convert wild-cards to RegEx
+ $key = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key));
+
+ // Does the RegEx match?
+ if (preg_match('#^'.$key.'$#', $uri))
+ {
+ // Do we have a back-reference?
+ if (strpos($val, '$') !== FALSE AND strpos($key, '(') !== FALSE)
+ {
+ $val = preg_replace('#^'.$key.'$#', $val, $uri);
+ }
+
+ $this->_compile_segments(explode('/', $val));
+ return;
+ }
+ }
+
+ // If we got this far it means we didn't encounter a
+ // matching route so we'll set the site default route
+ $this->_compile_segments($this->segments);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the class name
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_class($class)
+ {
+ $this->class = $class;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Fetch the current class
+ *
+ * @access public
+ * @return string
+ */
+ function fetch_class()
+ {
+ return $this->class;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the method name
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_method($method)
+ {
+ $this->method = $method;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Fetch the current method
+ *
+ * @access public
+ * @return string
+ */
+ function fetch_method()
+ {
+ if ($this->method == $this->fetch_class())
+ {
+ return 'index';
+ }
+
+ return $this->method;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the directory name
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_directory($dir)
+ {
+ $this->directory = $dir.'/';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Fetch the sub-directory (if any) that contains the requested controller class
+ *
+ * @access public
+ * @return string
+ */
+ function fetch_directory()
+ {
+ return $this->directory;
+ }
+
+}
+// END Router Class
?>
\ No newline at end of file