prevent accessing of controller directly from url which is in subdirectory in codeigniter - codeigniter

Question

This is my controller structute:
controllers
|
|__ posts
|
|__post.php
i have removed directory name from the url by changing in the routes.php file
$route['post/posts_controller'] = 'posts/post/posts_controller';
but now i want if anybody hits the complete url with the directory name i.e. http://localhost/url_routing/posts/post/posts_controller
then the page not found should appear.

Answer 1

This is a real problem with CodeIgniter, which can result in a LOT of duplicate content for search engine. The only workaround I found is to overwrite the Router to only use the routes.php and not folders / controllers names.
application/core/MY_Router.php
class MY_Router extends CI_Router {
/**
* Parse Routes
*
* 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.
*
* #return void
*/
protected function _parse_routes()
{
// Turn the segment array into a URI string
$uri = implode('/', $this->uri->segments);
// Get HTTP verb
$http_verb = isset($_SERVER['REQUEST_METHOD']) ? strtolower($_SERVER['REQUEST_METHOD']) : 'cli';
// Loop through the route array looking for wildcards
foreach ($this->routes as $key => $val)
{
// Check if route format is using HTTP verbs
if (is_array($val))
{
$val = array_change_key_case($val, CASE_LOWER);
if (isset($val[$http_verb]))
{
$val = $val[$http_verb];
}
else
{
continue;
}
}
// Convert wildcards to RegEx
$key = str_replace(array(':any', ':num'), array('[^/]+', '[0-9]+'), $key);
// Does the RegEx match?
if (preg_match('#^'.$key.'$#', $uri, $matches))
{
// Are we using callbacks to process back-references?
if ( ! is_string($val) && is_callable($val))
{
// Remove the original string from the matches array.
array_shift($matches);
// Execute the callback using the values in matches as its parameters.
$val = call_user_func_array($val, $matches);
}
// Are we using the default routing method for back-references?
elseif (strpos($val, '$') !== FALSE && strpos($key, '(') !== FALSE)
{
$val = preg_replace('#^'.$key.'$#', $val, $uri);
}
$this->_set_request(explode('/', $val));
return;
}
}
return;
}
}
This will result in CodeIgniter only using your routes.php, so I you still want to use CI routing, then don't use it.