Initial Import
diff --git a/system/libraries/Router.php b/system/libraries/Router.php
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+<?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 $routes = array();
+ var $class = '';
+ var $method = 'index';
+ 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('CI_Config');
+ $this->_set_route_mapping();
+ log_message('debug', "Router Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the route mapping
+ *
+ * This function determies what should be served based on the URI request,
+ * as well as any "routes" that have been set in the routing config file.
+ *
+ * @access private
+ * @return void
+ */
+ function _set_route_mapping()
+ {
+ // Are query strings enabled? If so we're done...
+ if ($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_once(APPPATH.'config/routes'.EXT);
+ $this->routes = ( ! isset($route) OR ! is_array($route)) ? array() : $route;
+ unset($route);
+
+ // Set the default controller
+ $this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);
+
+ // Fetch the URI string Depending on the server,
+ // the URI will be available in one of two globals
+ switch ($this->config->item('uri_protocol'))
+ {
+ case 'path_info' : $this->uri_string = (isset($_SERVER['PATH_INFO'])) ? $_SERVER['PATH_INFO'] : @getenv('PATH_INFO');
+ break;
+ case 'query_string' : $this->uri_string = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING');
+ break;
+ default :
+ $path_info = (isset($_SERVER['PATH_INFO'])) ? $_SERVER['PATH_INFO'] : @getenv('PATH_INFO');
+
+ if ($path_info != '' AND $path_info != "/".SELF)
+ {
+ $this->uri_string = $path_info;
+ }
+ else
+ {
+ $this->uri_string = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING');
+ }
+ break;
+ }
+
+ // Is there a URI string? If not, the default controller specified
+ // by the admin in the "routes" file will be shown.
+ if ($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);
+ $this->set_method('index');
+
+ log_message('debug', "No URI present. Default controller set.");
+ return;
+ }
+
+ // Do we need to remove the suffix specified in the config file?
+ if ($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.
+ $this->_compile_segments(explode("/", preg_replace("|/*(.+?)/*$|", "\\1", $this->uri_string)));
+
+
+ // Remap the class/method if a route exists
+ unset($this->routes['default_controller']);
+
+ if (count($this->routes) > 0)
+ {
+ $this->_parse_routes();
+ }
+ }
+ // END _set_route_mapping()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Compile Segments
+ *
+ * This function takes an array of URI segments as
+ * input, and puts it into the $this->segments array.
+ * It also sets the current class/method
+ *
+ * @access private
+ * @param array
+ * @param bool
+ * @return void
+ */
+ function _compile_segments($segs, $route = FALSE)
+ {
+ $segments = array();
+
+ $i = 1;
+ foreach($segs as $val)
+ {
+ $val = trim($this->_filter_uri($val));
+
+ if ($val != '')
+ $segments[$i++] = $val;
+ }
+
+ $this->set_class($segments['1']);
+
+ if (isset($segments['2']))
+ {
+ // A scaffolding request. No funny business with the URL
+ if ($this->routes['scaffolding_trigger'] == $segments['2'] AND $segments['2'] != '_ci_scaffolding')
+ {
+ $this->scaffolding_request = TRUE;
+ unset($this->routes['scaffolding_trigger']);
+ }
+ else
+ {
+ // A standard method request
+ $this->set_method($segments['2']);
+ }
+ }
+
+ if ($route == FALSE)
+ {
+ $this->segments = $segments;
+ }
+
+ unset($segments);
+ }
+ // END _compile_segments()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Filter segments for malicious characters
+ *
+ * @access private
+ * @param string
+ * @return string
+ */
+ function _filter_uri($str)
+ {
+ if ( ! preg_match("/^[a-z0-9~\s\%\.:_-]+$/i", $str))
+ {
+ exit('The URI you submitted has disallowed characters: '.$str);
+ }
+
+ return $str;
+ }
+ // END _filter_uri()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the class name
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_class($class)
+ {
+ $this->class = $class;
+ }
+ // END _filter_uri()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Fetch the current class
+ *
+ * @access public
+ * @return string
+ */
+ function fetch_class()
+ {
+ return $this->class;
+ }
+ // END _filter_uri()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set the method name
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_method($method)
+ {
+ $this->method = $method;
+ }
+ // END set_method()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Fetch the current method
+ *
+ * @access public
+ * @return string
+ */
+ function fetch_method()
+ {
+ return $this->method;
+ }
+ // END set_method()
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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()
+ {
+ // 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]), TRUE);
+ return;
+ }
+
+ // Loop through the route array looking for wildcards
+ foreach ($this->routes as $key => $val)
+ {
+ if (count(explode('/', $key)) != $num)
+ continue;
+
+ if (preg_match("|".str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key))."$|", $uri))
+ {
+ $this->_compile_segments(explode('/', $val), TRUE);
+ break;
+ }
+ }
+ }
+ // END set_method()
+}
+// END Router Class
+?>
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