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<?php |
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/** |
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* @package CleverStyle Framework |
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* @author Nazar Mokrynskyi <[email protected]> |
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* @copyright Copyright (c) 2015-2016, Nazar Mokrynskyi |
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* @license MIT License, see license.txt |
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*/ |
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namespace cs\App; |
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use |
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cs\Event, |
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cs\ExitException, |
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cs\Page, |
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cs\Response, |
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cs\App\Router\CLI, |
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cs\App\Router\Controller, |
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cs\App\Router\Files; |
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trait Router { |
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use |
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CLI, |
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Controller, |
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Files; |
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/** |
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* Path that will be used by controller to render page |
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* |
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* @var string[] |
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*/ |
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protected $controller_path; |
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/** |
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* @var string |
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*/ |
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protected $working_directory; |
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protected function init_router () { |
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$this->controller_path = ['index']; |
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$this->working_directory = ''; |
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} |
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/** |
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* Execute router |
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* |
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* Depending on module, files-based or controller-based router might be used |
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* |
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* @param \cs\Request $Request |
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* |
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* @throws ExitException |
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*/ |
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protected function execute_router ($Request) { |
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$this->working_directory = $this->get_working_directory($Request); |
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$this->check_and_normalize_route($Request); |
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if (!Event::instance()->fire('System/App/execute_router/before')) { |
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return; |
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} |
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/** |
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* If module consists of index.html only |
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*/ |
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if (file_exists("$this->working_directory/index.html")) { |
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ob_start(); |
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include "$this->working_directory/index.html"; |
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Page::instance()->content(ob_get_clean()); |
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} elseif (file_exists("$this->working_directory/Controller.php")) { |
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$this->controller_router($Request); |
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} else { |
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$this->files_router($Request); |
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} |
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Event::instance()->fire('System/App/execute_router/after'); |
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} |
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/** |
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* @param \cs\Request $Request |
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* |
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* @return string |
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* |
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* @throws ExitException |
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*/ |
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protected function get_working_directory ($Request) { |
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$working_directory = MODULES."/$Request->current_module"; |
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if ($Request->cli_path) { |
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$working_directory .= '/cli'; |
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} elseif ($Request->admin_path) { |
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$working_directory .= '/admin'; |
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} elseif ($Request->api_path) { |
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$working_directory .= '/api'; |
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} |
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// CLI interface will print useful info instead of 404 |
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if (!is_dir($working_directory) && (!$Request->cli_path || $Request->method != 'CLI')) { |
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throw new ExitException(404); |
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} |
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return $working_directory; |
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} |
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/** |
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* Normalize `cs\Request::$route_path` and fill `cs\App::$controller_path` |
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* |
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* @param \cs\Request $Request |
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* |
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* @throws ExitException |
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*/ |
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protected function check_and_normalize_route ($Request) { |
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if (!file_exists("$this->working_directory/index.json")) { |
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return; |
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} |
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$structure = file_get_json("$this->working_directory/index.json"); |
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if (!$structure) { |
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return; |
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} |
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for ($nesting_level = 0; $structure; ++$nesting_level) { |
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/** |
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* Next level of routing path |
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*/ |
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$path = @$Request->route_path[$nesting_level]; |
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/** |
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* If path not specified - take first from structure |
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*/ |
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$this->check_and_normalize_route_internal($Request, $path, $structure, $Request->cli_path || $Request->api_path); |
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$Request->route_path[$nesting_level] = $path; |
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/** |
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* Fill paths array intended for controller's usage |
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*/ |
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$this->controller_path[] = $path; |
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/** |
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* If nested structure is not available - we'll not go into next iteration of this cycle |
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*/ |
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$structure = @$structure[$path]; |
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} |
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} |
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/** |
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* @param \cs\Request $Request |
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* @param string $path |
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* @param array $structure |
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* @param bool $cli_or_api_path |
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* |
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* @throws ExitException |
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*/ |
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protected function check_and_normalize_route_internal ($Request, &$path, $structure, $cli_or_api_path) { |
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/** |
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* If path not specified - take first from structure |
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*/ |
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if (!$path) { |
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$path = isset($structure[0]) ? $structure[0] : array_keys($structure)[0]; |
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/** |
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* We need exact paths for CLI and API request (or `_` ending if available) and less strict mode for other cases that allows go deeper automatically |
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*/ |
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if ($path !== '_' && $cli_or_api_path) { |
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throw new ExitException(404); |
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} |
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} elseif (!isset($structure[$path]) && !in_array($path, $structure)) { |
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throw new ExitException(404); |
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} |
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if (!$this->check_permission($Request, $path)) { |
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throw new ExitException(403); |
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} |
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} |
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/** |
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* If HTTP method handler not found we generate either `501 Not Implemented` if other methods are supported or `404 Not Found` if handlers for others |
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* methods also doesn't exist |
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* |
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* @param string[] $available_methods |
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* @param string $request_method |
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* @param \cs\Request $Request |
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* |
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* @throws ExitException |
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*/ |
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protected function handler_not_found ($available_methods, $request_method, $Request) { |
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if ($available_methods) { |
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if ($Request->cli_path) { |
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$this->print_cli_structure($Request->path); |
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if ($request_method !== 'cli') { |
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throw new ExitException(501); |
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} |
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} else { |
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Response::instance()->header('Allow', implode(', ', $available_methods)); |
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if ($request_method !== 'options') { |
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throw new ExitException(501); |
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} |
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} |
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} else { |
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throw new ExitException(404); |
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} |
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} |
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} |
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nazar-pc /
CleverStyle-Framework
