diff options
Diffstat (limited to 'lib/pinq/Controller.php')
| -rw-r--r-- | lib/pinq/Controller.php | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/lib/pinq/Controller.php b/lib/pinq/Controller.php new file mode 100644 index 000000000..af82c3b0d --- /dev/null +++ b/lib/pinq/Controller.php @@ -0,0 +1,270 @@ +<?php +/** + * + * PHP version 5.4 + * + * @category Mageia + * @package Mageia\Web\www\Pinq + * @author rda <rda@mageia.org> + * @link http://www.mageia.org/ + * + * @license http://www.gnu.org/licenses/gpl-2.0.html GNU GPL v2+ + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License aspublished by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. +*/ + +/** +*/ +class Pinq_Controller +{ + /** + * @param string $dir root application directory + * @param array $server $_SERVER array + * + */ + public function __construct($dir, $server) + { + $this->_app_root = $dir; + $this->_server = $server; + } + + /** + */ + public static function run($app_root, $routes, $_server, $cache) + { + $pc = new self($app_root, $_server); + $pc->init(); + + if (isset($cache) + && $res = $cache->get($pc->get_cache_key())) { + + } else { + $res = $pc->_run($routes); + + if (isset($cache) + && isset($res['cache']) + && $res['cache'] > 0) { + + $cache->set($res, $pc->cache_key()); + } + } + + $pc->publish($res); + unset($pc); + } + + /** + */ + public function init() + { + $this->method = $this->_server['REQUEST_METHOD']; + $this->uri = $this->_server['REQUEST_URI']; + + if (strpos('?', $this->uri) !== false) { + $uri = explode('?', $this->uri); + $this->query = $uri[1]; + $this->uri = $uri[0]; + } + } + + /** + */ + public function get_cache_key() + { + return sha1(implode('#', array($this->method, $this->uri))); + } + + /** + * Prints document headers and contents. + * It _expects_ $res to be correctly formatted. + * + * @param array $res as returned by self::_run() + * + * @return void + */ + public function publish($res) + { + //$res['statuts'] + // Content-Length must match buffer + body + foreach ($res['headers'] as $h => $v) { + header($h); + } + echo $res['buffer']; + echo $res['body']; + } + + /** + * @param array $routes + * + * @return boolean + */ + private function _run($routes = null) + { + // static, image files are expected to be served directly by the server. + $ret = array( + 'body' => '', + 'buffer' => '', + 'cache' => 0, + 'headers' => array() + ); + + // detect path language; if not set, redirect to best fallback language (English for now), end + $this->lang = $this->get_request_language($this->uri); + + if (!$this->lang_is_managed($this->lang)) { + // TODO - ignore, with a special code or redirect? + $this->lang = 'en'; + } + + // TODO ob_start, etc.? + + if ($app = $this->matches_route($this->uri, $routes)) { + // 1. + $ret = $this->delegate_to($app); + } elseif (false) { // TODO + // 2. + // delegate to local script + // TODO look at local code at $uri, and decide if we can/should load it and decorate it. How? + } elseif ($this->fallback_to_previous_mode($this->uri, $this->lang)) { + // 3. + // finally, act as we used to before + } else { + // 4. + // if nothing matched, well... + $ret = $this->delegate_to('error', array('code' => '404')); + } + + return $ret; + } + + /** + * @param string $uri + * @param array $routes + * + * @return string + */ + private function matches_route($uri, $routes) + { + $re = ' + / + \/(([a-zA-Z\-\_]{2,5})\/)? + (.*) + /x'; + + if (preg_match_all($re, $uri, $matches)) { + $this->_lang = $matches[2][0]; + $this->_path = $matches[3][0]; + } + + if (is_array($routes) && count($routes) > 0) { + foreach ($routes as $r => $app) { + $re = '/' . $r . '/'; + if (preg_match_all($re, $uri, $m)) { + return $app; + } + } + } + + return null; + } + + /** + * @param string $uri + * + * @return string + */ + function get_request_language($uri) + { + $tu = explode('/', $uri); + $lang = $tu[1]; + $sl = strlen($lang); + if ($this->lang_exists($lang)) { + return $lang; + } + + return null; + } + + /** + */ + function lang_exists($lang) + { + // is it a valid language code? ll[-cc] or ll[_CC]? + return true; + } + + /** + */ + function lang_is_managed($lang) + { + // in managed languages array? + return true; + } + + /** + * @param string $app_name + * + * @return boolean + */ + private function delegate_to($app_name, $options = null) + { + $app_cont = realpath(sprintf('%s/apps/%s/%s_app.php', $this->_app_root, $app_name, $app_name)); + if (!file_exists($app_cont)) { + throw new Exception(sprintf('Expected "%s" app, found no definition file.', $app_name)); + } + + include $app_cont; + $a = new $app_name($this, $options); + + return $a->run(); + } + + /** + * @return boolean true if fallback happened + */ + function fallback_to_previous_mode($uri, $lang) + { + $uri = explode('?', $uri); + $qs = count($uri) > 1 ? $uri[1] : null; + $uri = $uri[0]; + + $alt_uri = sprintf( + '/%s/%s', + 'en', + substr($uri, strlen($lang) + 2) + ); + + $test_uris = array( + $uri, + $uri . 'index.php', + $uri . 'index.html', + $alt_uri, + $alt_uri . 'index.php', + $alt_uri . 'index.html' + ); + + $found = false; + + foreach ($test_uris as $inc_uri) { + + $real_file = realpath($this->_app_root . $inc_uri); + if (file_exists($real_file) && !is_dir($real_file)) { + + $found = true; + break; + } + } + + if ($found) { + chdir(dirname($real_file)); + require $real_file; + return true; + } + + return false; + } + +} |