<?php
/**
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2008, 2009, StatusNet, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @category StatusNet
 * @package  StatusNet
 * @author   Brenda Wallace <shiny@cpan.org>
 * @author   Brion Vibber <brion@pobox.com>
 * @author   Christopher Vollick <psycotica0@gmail.com>
 * @author   CiaranG <ciaran@ciarang.com>
 * @author   Craig Andrews <candrews@integralblue.com>
 * @author   Evan Prodromou <evan@controlezvous.ca>
 * @author   Gina Haeussge <osd@foosel.net>
 * @author   James Walker <walkah@walkah.net>
 * @author   Jeffery To <jeffery.to@gmail.com>
 * @author   Mike Cochrane <mikec@mikenz.geek.nz>
 * @author   Robin Millette <millette@controlyourself.ca>
 * @author   Sarven Capadisli <csarven@controlyourself.ca>
 * @author   Tom Adams <tom@holizz.com>
 * @author   Zach Copley <zach@status.net>
 * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
 *
 * @license  GNU Affero General Public License http://www.gnu.org/licenses/
 */

require('include.php');

function main()
{
    // fake HTTP redirects using lighttpd's 404 redirects
    if (strpos($_SERVER['SERVER_SOFTWARE'], 'lighttpd') !== false) {
        $_lighty_url = $base_url.$_SERVER['REQUEST_URI'];
        $_lighty_url = @parse_url($_lighty_url);

        if ($_lighty_url['path'] != '/index.php' && $_lighty_url['path'] != '/') {
            $_lighty_path = preg_replace('/^'.preg_quote(common_config('site', 'path')).'\//', '', substr($_lighty_url['path'], 1));
            $_SERVER['QUERY_STRING'] = 'p='.$_lighty_path;
            if ($_lighty_url['query']) {
                $_SERVER['QUERY_STRING'] .= '&'.$_lighty_url['query'];
            }
            parse_str($_lighty_url['query'], $_lighty_query);
            foreach ($_lighty_query as $key => $val) {
                $_GET[$key] = $_REQUEST[$key] = $val;
            }
            $_GET['p'] = $_REQUEST['p'] = $_lighty_path;
        }
    }
    $_SERVER['REDIRECT_URL'] = preg_replace("/\?.+$/", "", $_SERVER['REQUEST_URI']);

    // quick check for fancy URL auto-detection support in installer.
    if (isset($_SERVER['REDIRECT_URL']) && (preg_replace("/^\/$/", "", (dirname($_SERVER['REQUEST_URI']))) . '/check-fancy') === $_SERVER['REDIRECT_URL']) {
        die("Fancy URL support detection succeeded. We suggest you enable this to get fancy (pretty) URLs.");
    }
    global $user, $action;

    Snapshot::check();

    if (!_have_config()) {
        $msg = sprintf(
            _(
                "No configuration file found. Try running ".
                "the installation program first."
            )
        );
        $sac = new ServerErrorAction($msg);
        $sac->showPage();
        return;
    }

    // Make sure RW database is setup

    setupRW();

    // XXX: we need a little more structure in this script

    // get and cache current user (may hit RW!)

    $user = common_current_user();

    // initialize language env

    common_init_language();

    $path = getPath($_REQUEST);

    $r = Router::get();

    $args = $r->map($path);

    if (!$args) {
        $cac = new ClientErrorAction(_('Unknown page'), 404);
        $cac->showPage();
        return;
    }

    $args = array_merge($args, $_REQUEST);

    Event::handle('ArgsInitialize', array(&$args));

    $action = $args['action'];

    if (!$action || !preg_match('/^[a-zA-Z0-9_-]*$/', $action)) {
        common_redirect(common_local_url('public'));
        return;
    }

    // If the site is private, and they're not on one of the "public"
    // parts of the site, redirect to login

    if (!$user && common_config('site', 'private')
        && !isLoginAction($action)
        && !preg_match('/rss$/', $action)
        && $action != 'robotstxt'
        && !preg_match('/^Api/', $action)) {

        // set returnto
        $rargs =& common_copy_args($args);
        unset($rargs['action']);
        if (common_config('site', 'fancy')) {
            unset($rargs['p']);
        }
        if (array_key_exists('submit', $rargs)) {
            unset($rargs['submit']);
        }
        foreach (array_keys($_COOKIE) as $cookie) {
            unset($rargs[$cookie]);
        }
        common_set_returnto(common_local_url($action, $rargs));

        common_redirect(common_local_url('login'));
        return;
    }

    $action_class = ucfirst($action).'Action';

    if (!class_exists($action_class)) {
        $cac = new ClientErrorAction(_('Unknown action'), 404);
        $cac->showPage();
    } else {
        $action_obj = new $action_class();

        checkMirror($action_obj, $args);

        try {
            if ($action_obj->prepare($args)) {
                $action_obj->handle($args);
            }
        } catch (ClientException $cex) {
            $cac = new ClientErrorAction($cex->getMessage(), $cex->getCode());
            $cac->showPage();
        } catch (ServerException $sex) { // snort snort guffaw
            $sac = new ServerErrorAction($sex->getMessage(), $sex->getCode(), $sex);
            $sac->showPage();
        } catch (Exception $ex) {
            $sac = new ServerErrorAction($ex->getMessage(), 500, $ex);
            $sac->showPage();
        }
    }
}

main();

// XXX: cleanup exit() calls or add an exit handler so
// this always gets called

Event::handle('CleanupPlugin');