diff options
Diffstat (limited to 'system/core')
| -rw-r--r-- | system/core/Router.php | 234 |
1 files changed, 153 insertions, 81 deletions
diff --git a/system/core/Router.php b/system/core/Router.php index 32c1c3820..b371d5241 100644 --- a/system/core/Router.php +++ b/system/core/Router.php @@ -34,9 +34,7 @@ class CI_Router { var $class = ''; var $method = 'index'; var $directory = ''; - var $uri_protocol = 'auto'; var $default_controller; - var $scaffolding_request = FALSE; // Must be set to FALSE /** * Constructor @@ -45,9 +43,8 @@ class CI_Router { */ function CI_Router() { - $this->config =& load_class('Config'); - $this->uri =& load_class('URI'); - $this->_set_routing(); + $this->config =& load_class('Config', 'core'); + $this->uri =& load_class('URI', 'core'); log_message('debug', "Router Class Initialized"); } @@ -63,63 +60,55 @@ class CI_Router { * @return void */ function _set_routing() - { - // Are query strings enabled in the config file? - // If so, we're done since segment based URIs are not used with query strings. + { + // Are query strings enabled in the config file? Normally CI doesn't utilize query strings + // since URI segments are more search-engine friendly, but they can optionally be used. + // If this feature is enabled, we will gather the directory/class/method a little differently + $segments = array(); if ($this->config->item('enable_query_strings') === TRUE AND isset($_GET[$this->config->item('controller_trigger')])) { - $this->set_class(trim($this->uri->_filter_uri($_GET[$this->config->item('controller_trigger')]))); - + if (isset($_GET[$this->config->item('directory_trigger')])) + { + $this->set_directory(trim($this->uri->_filter_uri($_GET[$this->config->item('directory_trigger')]))); + $segments[] = $this->fetch_directory(); + } + + if (isset($_GET[$this->config->item('controller_trigger')])) + { + $this->set_class(trim($this->uri->_filter_uri($_GET[$this->config->item('controller_trigger')]))); + $segments[] = $this->fetch_class(); + } + if (isset($_GET[$this->config->item('function_trigger')])) { $this->set_method(trim($this->uri->_filter_uri($_GET[$this->config->item('function_trigger')]))); + $segments[] = $this->fetch_method(); } - - 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']); + $this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']); + + // Were there any query string segments? If so, we'll validate them and bail out since we're done. + if (count($segments) > 0) + { + return $this->_validate_request($segments); + } // Fetch the complete URI string $this->uri->_fetch_uri_string(); - + // Is there a URI string? If not, the default controller specified in the "routes" file will be shown. if ($this->uri->uri_string == '') { - if ($this->default_controller === FALSE) - { - show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file."); - } - - if (strpos($this->default_controller, '/') !== FALSE) - { - $x = explode('/', $this->default_controller); - - $this->set_class(end($x)); - $this->set_method('index'); - $this->_set_request($x); - } - else - { - $this->set_class($this->default_controller); - $this->set_method('index'); - $this->_set_request(array($this->default_controller, 'index')); - } - - // re-index the routed segments array so it starts with 1 rather than 0 - $this->uri->_reindex_segments(); - - log_message('debug', "No URI present. Default controller set."); - return; + return $this->_set_default_controller(); } - unset($this->routes['default_controller']); // Do we need to remove the URL suffix? $this->uri->_remove_url_suffix(); @@ -133,6 +122,42 @@ class CI_Router { // Re-index the segment array so that it starts with 1 rather than 0 $this->uri->_reindex_segments(); } + + // -------------------------------------------------------------------- + + /** + * Set the default controller + * + * @access private + * @return void + */ + function _set_default_controller() + { + if ($this->default_controller === FALSE) + { + show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file."); + } + // Is the method being specified? + if (strpos($this->default_controller, '/') !== FALSE) + { + $x = explode('/', $this->default_controller); + + $this->set_class($x[0]); + $this->set_method($x[1]); + $this->_set_request(array($x[0], $x[1])); + } + else + { + $this->set_class($this->default_controller); + $this->set_method('index'); + $this->_set_request(array($this->default_controller, 'index')); + } + + // re-index the routed segments array so it starts with 1 rather than 0 + $this->uri->_reindex_segments(); + + log_message('debug', "No URI present. Default controller set."); + } // -------------------------------------------------------------------- @@ -148,29 +173,20 @@ class CI_Router { * @return void */ function _set_request($segments = array()) - { + { $segments = $this->_validate_request($segments); if (count($segments) == 0) { - return; + return $this->_set_default_controller(); } $this->set_class($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]); - } + // A standard method request + $this->set_method($segments[1]); } else { @@ -197,15 +213,20 @@ class CI_Router { */ function _validate_request($segments) { + if (count($segments) == 0) + { + return $segments; + } + // Does the requested controller exist in the root folder? if (file_exists(APPPATH.'controllers/'.$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); @@ -215,13 +236,24 @@ class CI_Router { // Does the requested controller exist in the sub-folder? if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT)) { - show_404($this->fetch_directory().$segments[0]); + show_404($this->fetch_directory().$segments[0]); } } else { - $this->set_class($this->default_controller); - $this->set_method('index'); + // Is the method being specified in the route? + if (strpos($this->default_controller, '/') !== FALSE) + { + $x = explode('/', $this->default_controller); + + $this->set_class($x[0]); + $this->set_method($x[1]); + } + 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)) @@ -231,16 +263,32 @@ class CI_Router { } } - + return $segments; } - - // Can't find the requested controller... - show_404($segments[0]); + + + // If we've gotten this far it means that the URI does not correlate to a valid + // controller class. We will now see if there is an override + if (isset($this->routes['404_override']) AND $this->routes['404_override'] != '') + { + if (strpos($this->routes['404_override'], '/') !== FALSE) + { + $x = explode('/', $this->routes['404_override']); + + $this->set_class($x[0]); + $this->set_method($x[1]); + + return $x; + } + } + + // Nothing else to do at this point but show a 404 + show_404($segments[0]); } - + // -------------------------------------------------------------------- - + /** * Parse Routes * @@ -253,22 +301,13 @@ class CI_Router { */ function _parse_routes() { - // Do we even have any custom routing to deal with? - // There is a default scaffolding trigger, so we'll look just for 1 - if (count($this->routes) == 1) - { - $this->_set_request($this->uri->segments); - return; - } - // Turn the segment array into a URI string $uri = implode('/', $this->uri->segments); - + // Is there a literal match? If so we're done if (isset($this->routes[$uri])) { - $this->_set_request(explode('/', $this->routes[$uri])); - return; + return $this->_set_request(explode('/', $this->routes[$uri])); } // Loop through the route array looking for wild-cards @@ -276,18 +315,17 @@ class CI_Router { { // 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->_set_request(explode('/', $val)); - return; + return $this->_set_request(explode('/', $val)); } } @@ -366,7 +404,7 @@ class CI_Router { */ function set_directory($dir) { - $this->directory = $dir.'/'; + $this->directory = trim($dir, '/').'/'; } // -------------------------------------------------------------------- @@ -382,6 +420,40 @@ class CI_Router { return $this->directory; } + // -------------------------------------------------------------------- + + /** + * Set the controller overrides + * + * @access public + * @param array + * @return null + */ + function _set_overrides($routing) + { + if ( ! is_array($routing)) + { + return; + } + + if (isset($routing['directory'])) + { + $this->set_directory($routing['directory']); + } + + if (isset($routing['controller']) AND $routing['controller'] != '') + { + $this->set_class($routing['controller']); + } + + if (isset($routing['function'])) + { + $routing['function'] = ($routing['function'] == '') ? 'index' : $routing['function']; + $this->set_method($routing['function']); + } + } + + } // END Router Class |