diff options
Diffstat (limited to 'MainApp.php')
| -rw-r--r-- | MainApp.php | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/MainApp.php b/MainApp.php new file mode 100644 index 0000000..e55a74a --- /dev/null +++ b/MainApp.php @@ -0,0 +1,303 @@ +<?php +//// +// main/MainApp.php +// @author Filipp Lepalaan <filipp@mekanisti.fi> +// @copyright (c) 2009 Filipp Lepalaan +class MainApp +{ + //// + // Fire up the application + static public function init() + { + @list($controller, $param, $action) = App::url(); + + // no action given, read default one + if (empty($param)) { + $action = self::conf('defaults.action'); + } + + // no controller given, read default one + if (!$controller) { + $controller = self::conf('defaults.controller'); + } + + // fire up the output buffer + ob_start(); + + // Dispatch correct controller + $c = new $controller; + + // Assume no method name was given, try $param, then default to defaultAction + // controller/param/action + if (method_exists($c, $action)) { + return $c->$action($c); + } + + // controller/action + if (method_exists($c, $param)) { + return $c->$param($c); + } + + // controller/param + if (method_exists($c, $c->defaultAction)) { + $action = $c->defaultAction; + return $c->$action($c); + } + + App::error("{$controller}_{$action}: no such method"); + + ob_end_flush(); + + } + + //// + // Requests should always be in the form: controller/action/parameters.type + // Strip type info since it's not needed at this point + static function url($index = null) + { + $url = parse_url($_SERVER['REQUEST_URI']); + + if ($index == 'query') { + return $url['query']; + } + $req = ltrim($url['path'], '/'); + $array = explode('/', preg_replace('/\.\w+$/', '', $req)); + return (is_numeric($index)) ? $array[$index] : $array; + } + + //// + // return parameter part of URL + static function param() + { + $url = App::url(); + return $url[1]; + } + + //// + // get configuration data from ini file + static function conf($key = NULL) + { + $cpath = realpath('../system/config.ini'); + + if (!file_exists($cpath)) { + trigger_error('Failed to open config file', E_USER_ERROR); + exit(); + } + + $config = parse_ini_file($cpath, true); + $config = $config['development']; + + if ($key && ! $config[$key]) { + return self::error('No such config key: '.$key); + } + + return ($key) ? $config[$key] : $config; + + } + + //// + // determine template type of request + static function type() + { + $tokens = explode('/', $_SERVER['REQUEST_URI']); + $last = array_pop($tokens); + $type = ltrim(strrchr($last, '.'), '.'); + + $contentTypes = array('html', 'rss', 'xml', 'tpl', 'pdf', 'jpg'); + + if (in_array($type, $contentTypes)) { + return $type; + } + + return 'html'; + + } + + static function ok($msg) + { + $ok = array('result' => 'ok', 'msg' => $msg); + self::json($ok); + } + + static function error($msg) + { + $err = array('result' => 'error', 'msg' => $msg); + // And log it locally + self::log($msg); + } + + static function json($msg) + { + $json = json_encode($msg); + header('Content-Type: application/json'); + header('Content-Length: ' . mb_strlen($json)); + print $json; + } + + //// + // log an error to our own logging system + static function log($msg) + { + if (is_array($msg)) { + $msg = print_r($msg, true); + } + + $file = self::conf('app.error_log'); + + if (!is_file($file)) { + return false; + } + + $msg = trim($msg); + $fh = fopen($file, 'a+'); + fwrite($fh, trim($msg) . "\n"); + fclose($fh); + + } + + //// + // do a proper HTTP redirect + // @param string [$where] URL to redirect to + // @return void + static function redirect($url = null) + { + if (!$url) { + // Is it smart to redirect back to the page which redirected here? + $url = $_SERVER['HTTP_REFERER']; + } + header('HTTP/1.1 303 See Other'); + header('Location: ' . $url); + } + + //// + // determine locale from USER_AGENT + static function locale() + { + if (!isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) { + return NULL; + } + // Set language to whatever the browser is set to + list($loc, $lang) = explode('-', $_SERVER['HTTP_ACCEPT_LANGUAGE']); + return sprintf('%s_%s', $loc, strtoupper($lang)); + } + + public function delete($table, $where) + { + if (empty($where)) { + exit(App::error('Delete without parameters')); + } + + list($key, $value) = each($where); + $sql = "DELETE FROM `$table` WHERE $key = :{$key}"; + + self::log($sql); + self::query($sql, $where); + + } + + //// + // insert something in the database + static function insert($table, $data) + { + if (empty($data)) { + exit(self::error('Empty insert')); + } + + $cols = array(); + $vals = array(); + + foreach ($data as $k => $v) { + $cols[] = "`{$k}`"; + $vals[] = ":{$k}"; + } + + $cols = implode(',', $cols); + $vals = implode(',', $vals); + $sql = "INSERT INTO `$table` ($cols) VALUES ($vals)"; + + self::log($sql); + self::query($sql, $data); + + } + + // Move this back to Controller once PHP 5.3 is out (get_called_class()) + static function select($table, $where = 1, $what = '*', $order_by = '') + { + $out = array(); + + $query = '?'; + $values = array(1); + + if (is_array($where)) { + $values = array(); + foreach ($where as $k => $v) { + $keys[] = "`$k` = :{$k}"; + $values[":{$k}"] = $v; + } + $query = implode(" AND ", $keys); + } + + if (!empty($order_by)) { + list($ob_col, $ob_dir) = explode(" ", $order_by); + $order_by = "ORDER BY `$ob_col` $ob_dir"; + } + + $sql = "SELECT $what FROM `$table` WHERE $query $order_by"; + + self::log($sql); + self::log($values); + + $stmt = self::db()->prepare($sql); + $stmt->execute($values); + + foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) { + $out[] = $row; + } + + if (count($out) == 1 && $what != '*') { + return $out[0][$what]; + } + + return $out; + + } + + //// + // Prompt for HTTP authentication + // @param string [$callback] Function that makes the actual authentication + // @param string [$realm] Realm name + // @return mixed false if cancelled or output of $function + static function auth($callback, $realm = 'Default') + { + if (!isset($_SERVER['PHP_AUTH_USER'])) + { + header(sprintf('WWW-Authenticate: Basic realm="%s"', $realm)); + header('HTTP/1.0 401 Unauthorized'); + return false; + } else { + return call_user_func($callback, $_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']); + } + } + + //// + // Output a JavaScript fragment + public function js($string) + { + header('Content-Type: text/javascript'); + print '<script type="text/javascript" charset="utf-8"> + ' . $string . ' + </script>'; + } + +} + + function __autoload($class_name) + { + $class_name = ucfirst($class_name); + include_once "{$class_name}.php"; + if (!class_exists($class_name)) { + exit(App::error("{$class_name}: no such class")); + } + } + +?>
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