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<?php |
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/** |
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* @package CleverStyle CMS |
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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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cli, |
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cs\Config, |
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cs\Config\Module_Properties, |
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cs\ExitException, |
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cs\Page, |
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cs\Request, |
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cs\Response; |
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/** |
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* @property string[] $controller_path Path that will be used by controller to render page |
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*/ |
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trait Router { |
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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 $controller_path; |
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/** |
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* Execute router |
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* |
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* Depending on module, files-based or controller-based router might be used |
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* |
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* @throws ExitException |
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*/ |
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protected function execute_router () { |
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$Request = Request::instance(); |
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$this->check_and_normalize_route($Request); |
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if (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($Request); |
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} |
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} |
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protected function print_cli_structure ($path) { |
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$Config = Config::instance(); |
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$result = []; |
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foreach ($Config->components['modules'] as $module_name => $data) { |
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if ($data['active'] == Module_Properties::ENABLED) { |
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$working_dir = MODULES."/$module_name/cli"; |
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$structure = file_exists("$working_dir/index.json") ? file_get_json("$working_dir/index.json") : []; |
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$this->print_cli_structure_internal( |
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$working_dir, |
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$module_name, |
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'', |
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$structure, |
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$result[$module_name] |
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); |
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} |
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} |
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$result = $this->print_cli_structure_normalize_result($result); |
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$Page = Page::instance(); |
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// Cut `/cli/` prefix |
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$path = substr($path, 5); |
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if ($path) { |
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$Page->content("%WPaths and methods for \"$path\":%n\n"); |
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$result = array_filter( |
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$result, |
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function ($item) use ($path) { |
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return strpos($item[0], $path) === 0; |
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} |
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); |
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} else { |
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$Page->content("%WAll paths and methods:%n\n"); |
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} |
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$Page->content( |
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implode("\n", (new cli\Table(['Path', 'Methods available'], $result))->getDisplayLines())."\n" |
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); |
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} |
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/** |
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* @param string $dir |
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* @param string $module_name |
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* @param string $basename |
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* @param array $structure |
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* @param array $result |
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*/ |
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protected function print_cli_structure_internal ($dir, $module_name, $basename, $structure, &$result) { |
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/** @noinspection NestedTernaryOperatorInspection */ |
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foreach ($structure ?: (!$basename ? ['index'] : []) as $path => $nested_structure) { |
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if (!is_array($nested_structure)) { |
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$path = $nested_structure; |
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$nested_structure = []; |
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} |
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$key = $path == '_' ? 0 : $path; |
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if (file_exists("$dir/Controller.php")) { |
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$result[$key] = $this->controller_router_available_methods( |
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$dir, |
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"\\cs\\modules\\$module_name\\cli\\Controller", |
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$basename ? $basename.'_'.$path : $path |
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); |
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$new_dir = $dir; |
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$new_basename = $basename ? $basename.'_'.$path : $path; |
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} else { |
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$result[$key] = $this->files_router_available_methods($dir, $path); |
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$new_dir = "$dir/$path"; |
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$new_basename = $basename; |
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} |
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if ($structure && $nested_structure) { |
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$this->print_cli_structure_internal($new_dir, $module_name, $new_basename, $nested_structure, $result[$key]); |
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} |
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} |
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} |
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/** |
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* @param array $result |
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* @param string $prefix |
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* |
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* @return string[] |
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*/ |
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protected function print_cli_structure_normalize_result ($result, $prefix = '') { |
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$normalized = []; |
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foreach ($result as $key => $value) { |
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if (is_array_assoc($value)) { |
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if (!$prefix && isset($value['index'])) { |
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$value[0] = $value['index']; |
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unset($value['index']); |
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} |
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if (is_array(@$value[0]) && $value[0]) { |
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$normalized[] = [$prefix.$key, strtolower(implode(', ', $value[0]))]; |
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} |
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unset($value[0]); |
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/** @noinspection SlowArrayOperationsInLoopInspection */ |
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$normalized = array_merge($normalized, $this->print_cli_structure_normalize_result($value, $prefix.$key.'/')); |
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} elseif (is_array($value) && $value) { |
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$normalized[] = [$prefix.$key, strtolower(implode(', ', $value))]; |
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} |
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} |
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return $normalized; |
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} |
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/** |
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* Normalize `cs\Request::$route_path` and fill `cs\App::$controller_path` |
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* |
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* @param 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($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 string $path |
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* @param array $structure |
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* @param bool $cli_or_api_path |
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* |
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* @throws ExitException |
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*/ |
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protected function check_and_normalize_route_internal (&$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, $structure)) { |
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throw new ExitException(404); |
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} |
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/** @noinspection PhpUndefinedMethodInspection */ |
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if (!$this->check_permission($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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* Include files necessary for module page rendering |
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* |
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* @param Request $Request |
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* |
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* @throws ExitException |
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*/ |
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protected function files_router ($Request) { |
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foreach ($this->controller_path as $index => $path) { |
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/** |
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* Starting from index 2 we need to maintain slash-separated string that includes all paths from index 1 and till current |
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*/ |
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if ($index > 1) { |
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$path = implode('/', array_slice($this->controller_path, 1, $index)); |
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} |
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$next_exists = isset($this->controller_path[$index + 1]); |
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$this->files_router_handler($Request, $this->working_directory, $path, !$next_exists); |
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} |
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} |
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/** |
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* Include files that corresponds for specific paths in URL |
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* |
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* @param Request $Request |
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* @param string $dir |
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* @param string $basename |
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* @param bool $required |
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* |
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* @throws ExitException |
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*/ |
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protected function files_router_handler ($Request, $dir, $basename, $required = true) { |
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$this->files_router_handler_internal($Request, $dir, $basename, $required); |
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} |
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/** |
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* @param Request $Request |
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* @param string $dir |
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* @param string $basename |
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* @param bool $required |
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* |
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* @throws ExitException |
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*/ |
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protected function files_router_handler_internal ($Request, $dir, $basename, $required) { |
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$included = _include("$dir/$basename.php", false, false) !== false; |
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if (!$Request->cli_path && !$Request->api_path) { |
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return; |
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} |
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$request_method = strtolower($Request->method); |
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$included = _include("$dir/$basename.$request_method.php", false, false) !== false || $included; |
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if ($included || !$required) { |
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return; |
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} |
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$this->handler_not_found( |
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$this->files_router_available_methods($dir, $basename), |
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$request_method, |
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$Request |
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); |
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} |
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/** |
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* @param string $dir |
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* @param string $basename |
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* |
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* @return string[] |
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*/ |
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protected function files_router_available_methods ($dir, $basename) { |
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$methods = get_files_list($dir, "/^$basename\\.[a-z]+\\.php$/"); |
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$methods = _strtoupper(_substr($methods, strlen($basename) + 1, -4)); |
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natcasesort($methods); |
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return array_values($methods); |
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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 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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* Call methods necessary for module page rendering |
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* |
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* @param Request $Request |
299
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* |
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* @throws ExitException |
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*/ |
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protected function controller_router ($Request) { |
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$suffix = ''; |
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if ($Request->cli_path) { |
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$suffix = '\\cli'; |
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} elseif ($Request->admin_path) { |
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$suffix = '\\admin'; |
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} elseif ($Request->api_path) { |
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$suffix = '\\api'; |
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} |
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$controller_class = "cs\\modules\\$Request->current_module$suffix\\Controller"; |
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foreach ($this->controller_path as $index => $path) { |
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/** |
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* Starting from index 2 we need to maintain underscore-separated string that includes all paths from index 1 and till current |
315
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*/ |
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if ($index > 1) { |
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$path = implode('_', array_slice($this->controller_path, 1, $index)); |
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} |
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$next_exists = isset($this->controller_path[$index + 1]); |
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$this->controller_router_handler($Request, $controller_class, $path, !$next_exists); |
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} |
322
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} |
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/** |
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* Call methods that corresponds for specific paths in URL |
325
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* |
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* @param Request $Request |
327
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* @param string $controller_class |
328
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* @param string $method_name |
329
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* @param bool $required |
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* |
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* @throws ExitException |
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*/ |
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protected function controller_router_handler ($Request, $controller_class, $method_name, $required = true) { |
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$method_name = str_replace('.', '_', $method_name); |
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$this->controller_router_handler_internal($Request, $controller_class, $method_name, $required); |
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} |
337
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/** |
338
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* @param Request $Request |
339
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* @param string $controller_class |
340
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* @param string $method_name |
341
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* @param bool $required |
342
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* |
343
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* @throws ExitException |
344
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*/ |
345
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protected function controller_router_handler_internal ($Request, $controller_class, $method_name, $required) { |
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$Response = Response::instance(); |
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$found = $this->controller_router_handler_internal_execute($controller_class, $method_name, $Request, $Response); |
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if (!$Request->cli_path && !$Request->api_path) { |
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return; |
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} |
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$request_method = strtolower($Request->method); |
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$found = $this->controller_router_handler_internal_execute($controller_class, $method_name.'_'.$request_method, $Request, $Response) || $found; |
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if ($found || !$required) { |
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return; |
355
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} |
356
|
|
|
$this->handler_not_found( |
357
|
|
|
$this->controller_router_available_methods($this->working_directory, $controller_class, $method_name), |
358
|
|
|
$request_method, |
359
|
|
|
$Request |
360
|
|
|
); |
361
|
|
|
} |
362
|
|
|
/** |
363
|
|
|
* @param string $working_directory |
364
|
|
|
* @param string $controller_class |
365
|
|
|
* @param string $method_name |
366
|
|
|
* |
367
|
|
|
* @return string[] |
368
|
|
|
*/ |
369
|
|
|
protected function controller_router_available_methods ($working_directory, $controller_class, $method_name) { |
370
|
|
|
$structure = file_exists("$working_directory/index.json") ? file_get_json("$working_directory/index.json") : ['index']; |
371
|
|
|
$structure = $this->controller_router_available_methods_to_flat_structure($structure); |
372
|
|
|
$methods = array_filter( |
373
|
|
|
get_class_methods($controller_class), |
374
|
|
|
function ($found_method) use ($method_name, $structure) { |
375
|
|
|
if (!preg_match("/^{$method_name}_[a-z_]+$/", $found_method)) { |
376
|
|
|
return false; |
377
|
|
|
} |
378
|
|
|
foreach ($structure as $structure_method) { |
379
|
|
|
if (strpos($found_method, $structure_method) === 0 && strpos($method_name, $structure_method) !== 0) { |
380
|
|
|
return false; |
381
|
|
|
} |
382
|
|
|
} |
383
|
|
|
return true; |
384
|
|
|
} |
385
|
|
|
); |
386
|
|
|
if (method_exists($controller_class, $method_name)) { |
387
|
|
|
$methods[] = $method_name; |
388
|
|
|
} |
389
|
|
|
$methods = _strtoupper(_substr($methods, strlen($method_name) + 1)); |
390
|
|
|
natcasesort($methods); |
391
|
|
|
return array_values($methods); |
392
|
|
|
} |
393
|
|
|
/** |
394
|
|
|
* @param array $structure |
395
|
|
|
* @param string $prefix |
396
|
|
|
* |
397
|
|
|
* @return string[] |
398
|
|
|
*/ |
399
|
|
|
protected function controller_router_available_methods_to_flat_structure ($structure, $prefix = '') { |
400
|
|
|
$flat_structure = []; |
401
|
|
|
foreach ($structure as $path => $nested_structure) { |
402
|
|
|
if (!is_array($nested_structure)) { |
403
|
|
|
$path = $nested_structure; |
404
|
|
|
$nested_structure = []; |
405
|
|
|
} |
406
|
|
|
$flat_structure[] = $prefix.$path; |
407
|
|
|
/** @noinspection SlowArrayOperationsInLoopInspection */ |
408
|
|
|
$flat_structure = array_merge( |
409
|
|
|
$flat_structure, |
410
|
|
|
$this->controller_router_available_methods_to_flat_structure($nested_structure, $prefix.$path.'_') |
411
|
|
|
); |
412
|
|
|
} |
413
|
|
|
return $flat_structure; |
414
|
|
|
} |
415
|
|
|
/** |
416
|
|
|
* @param string $controller_class |
417
|
|
|
* @param string $method_name |
418
|
|
|
* @param Request $Request |
419
|
|
|
* @param Response $Response |
420
|
|
|
* |
421
|
|
|
* @return bool |
422
|
|
|
*/ |
423
|
|
|
protected function controller_router_handler_internal_execute ($controller_class, $method_name, $Request, $Response) { |
424
|
|
|
if (!method_exists($controller_class, $method_name)) { |
425
|
|
|
return false; |
426
|
|
|
} |
427
|
|
|
$result = $controller_class::$method_name($Request, $Response); |
428
|
|
|
if ($result !== null) { |
429
|
|
|
Page::instance()->{$Request->api_path ? 'json' : 'content'}($result); |
430
|
|
|
} |
431
|
|
|
return true; |
432
|
|
|
} |
433
|
|
|
} |
434
|
|
|
|