<?php
/**
* File: Common
*
* Chyrp - A Lightweight Blogging Engine
*
* Version:
* v2.0 RC1
*
* License:
* GPL-3
*
* Chyrp Copyright:
* Copyright (c) 2008 Alex Suraci, <http://toogeneric.com/>
*/
if (version_compare(PHP_VERSION, "5.1.3", "<"))
exit("Chyrp requires PHP 5.1.3 or greater. Installation cannot continue.");
# Constant: CHYRP_VERSION
# Chyrp's version number.
define('CHYRP_VERSION', "2.0 RC1");
# Constant: DEBUG
# Should Chyrp use debugging processes?
define('DEBUG', false);
# Fallback all these definitions.
if (!defined('JAVASCRIPT')) define('JAVASCRIPT', false);
if (!defined('ADMIN')) define('ADMIN', false);
if (!defined('AJAX')) define('AJAX', false);
if (!defined('XML_RPC')) define('XML_RPC', false);
if (!defined('TRACKBACK')) define('TRACKBACK', false);
define('UPGRADING', false);
define('INSTALLING', false);
# Constant: INDEX
# Is the requested file index.php?
define('INDEX', (pathinfo($_SERVER['SCRIPT_NAME'], PATHINFO_BASENAME) == "index.php") and !ADMIN);
# Use GZip compression if available.
if (!AJAX and extension_loaded("zlib") and
!ini_get("zlib.output_compression") and
isset($_SERVER['HTTP_ACCEPT_ENCODING']) and
substr_count($_SERVER['HTTP_ACCEPT_ENCODING'], "gzip")) {
ob_start("ob_gzhandler");
header("Content-Encoding: gzip");
} else
ob_start();
if (JAVASCRIPT) {
error_reporting(0);
header("Content-Type: application/x-javascript");
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 03 Jun 1991 05:30:00 GMT");
} else
error_reporting(E_ALL | E_STRICT); # Make sure E_STRICT is on so Chyrp remains errorless.
# Constant: MAIN_DIR
# Absolute path to the Chyrp root
define('MAIN_DIR', dirname(dirname(__FILE__)));
# Constant: INCLUDES_DIR
# Absolute path to /includes
define('INCLUDES_DIR', MAIN_DIR."/includes");
# Constant: MODULES_DIR
# Absolute path to /modules
define('MODULES_DIR', MAIN_DIR."/modules");
# Constant: FEATHERS_DIR
# Absolute path to /feathers
define('FEATHERS_DIR', MAIN_DIR."/feathers");
# Constant: THEMES_DIR
# Absolute path to /themes
define('THEMES_DIR', MAIN_DIR."/themes");
# File: Helpers
# Various functions used throughout Chyrp's code.
require_once INCLUDES_DIR."/helpers.php";
# Not installed?
if (!file_exists(INCLUDES_DIR."/config.yaml.php"))
redirect("install.php");
require_once INCLUDES_DIR."/class/Query.php";
require_once INCLUDES_DIR."/class/QueryBuilder.php";
require_once INCLUDES_DIR."/lib/YAML.php";
require_once INCLUDES_DIR."/class/Config.php";
require_once INCLUDES_DIR."/class/SQL.php";
# Translation stuff
require_once INCLUDES_DIR."/lib/gettext/gettext.php";
require_once INCLUDES_DIR."/lib/gettext/streams.php";
if (function_exists("date_default_timezone_set"))
date_default_timezone_set($config->timezone);
else
ini_set("date.timezone", $config->timezone);
header("X-Pingback: ".$config->chyrp_url."/includes/xmlrpc.php");
$sql->connect();
sanitize_input($_GET);
sanitize_input($_POST);
sanitize_input($_COOKIE);
sanitize_input($_REQUEST);
set_error_handler("error_panicker");
# File: Model
# See Also:
# <Model>
require_once INCLUDES_DIR."/class/Model.php";
# File: User
# See Also:
# <User>
require_once INCLUDES_DIR."/model/User.php";
# File: Visitor
# See Also:
# <Visitor>
require_once INCLUDES_DIR."/model/Visitor.php";
# File: Post
# See Also:
# <Post>
require_once INCLUDES_DIR."/model/Post.php";
# File: Page
# See Also:
# <Page>
require_once INCLUDES_DIR."/model/Page.php";
# File: Group
# See Also:
# <Group>
require_once INCLUDES_DIR."/model/Group.php";
# File: Session
# See Also:
# <Session>
require_once INCLUDES_DIR."/class/Session.php";
if (!JAVASCRIPT)
session();
# File: Flash
# See Also:
# <Flash>
require_once INCLUDES_DIR."/class/Flash.php";
# File: Theme
# See Also:
# <Theme>
require_once INCLUDES_DIR."/class/Theme.php";
# File: Trigger
# See Also:
# <Trigger>
require_once INCLUDES_DIR."/class/Trigger.php";
# File: Module
# See Also:
# <Module>
require_once INCLUDES_DIR."/class/Modules.php";
# File: Feathers
# See Also:
# <Feathers>
require_once INCLUDES_DIR."/class/Feathers.php";
# File: Paginator
# See Also:
# <Paginator>
require_once INCLUDES_DIR."/class/Paginator.php";
# File: Twig
# Chyrp's templating engine.
require_once INCLUDES_DIR."/class/Twig.php";
# File: Route
# See Also:
# <Route>
require_once INCLUDES_DIR."/class/Route.php";
# File: Main
# See Also:
# <Main Controller>
require_once INCLUDES_DIR."/controller/Main.php";
# File: Admin
# See Also:
# <Admin Controller>
require_once INCLUDES_DIR."/controller/Admin.php";
# File: Feather
# See Also:
# <Feather>
require_once INCLUDES_DIR."/interface/Feather.php";
timer_start();
$flash = Flash::current();
set_locale($config->locale);
# Require feathers/modules and load their translations.
foreach ($config->enabled_feathers as $index => $feather) {
if (!file_exists(FEATHERS_DIR."/".$feather."/".$feather.".php")) {
unset($config->enabled_feathers[$index]);
continue;
}
if (file_exists(FEATHERS_DIR."/".$feather."/locale/".$config->locale.".mo"))
load_translator($feather, FEATHERS_DIR."/".$feather."/locale/".$config->locale.".mo");
require FEATHERS_DIR."/".$feather."/".$feather.".php";
$info = YAML::load(FEATHERS_DIR."/".$feather."/info.yaml");
$pluralizations[$feather] = $pluralizations["feathers"][$feather] = fallback($info["plural"], pluralize($feather), true);
}
foreach ($config->enabled_modules as $index => $module) {
if (!file_exists(MODULES_DIR."/".$module."/".$module.".php")) {
unset($config->enabled_modules[$index]);
continue;
}
if (file_exists(MODULES_DIR."/".$module."/locale/".$config->locale.".mo"))
load_translator($module, MODULES_DIR."/".$module."/locale/".$config->locale.".mo");
require MODULES_DIR."/".$module."/".$module.".php";
}
# Load the /clean/urls into their correct $_GET values.
if (INDEX or ADMIN)
$route->determine_action();
# Variable: $visitor
# Holds the current user and their group.
$visitor = Visitor::current();
define('PREVIEWING', ($visitor->group()->can("change_settings") and
!empty($_GET['action']) and
$_GET['action'] == "theme_preview" and
!empty($_GET['theme'])));
$theme = PREVIEWING ? $_GET['theme'] : $config->theme;
# Constant: THEME_DIR
# Absolute path to /themes/(current theme)
define('THEME_DIR', MAIN_DIR."/themes/".$theme);
# Constant: THEME_URL
# URL to /themes/(current theme)
define('THEME_URL', $config->chyrp_url."/themes/".$theme);
$theme = Theme::current();
foreach (YAML::load(THEME_DIR."/info.yaml") as $key => $val)
$theme->$key = $val;
if (INDEX)
header("Content-type: ".fallback($theme->type, "text/html")."; charset=UTF-8");
elseif (AJAX)
header("Content-type: text/html; charset=UTF-8");
# These are down here so that the modules are
# initialized after the $_GET values are filled.
/**
* Array: $feathers
* Contains all of the enabled Feather's Classes.
*/
$feathers = array();
foreach ($config->enabled_feathers as $feather) {
$camelized = camelize($feather);
if (!class_exists($camelized)) continue;
$feathers[$feather] = new $camelized;
$feathers[$feather]->safename = $feather;
if (!ADMIN and $route->action != "feed") continue;
foreach (YAML::load(FEATHERS_DIR."/".$feather."/info.yaml") as $key => $val)
$feathers[$feather]->$key = (is_string($val)) ? __($val, $feather) : $val ;
}
/**
* Array: $modules
* Contains all of the enabled Module's Classes.
*/
$modules = array();
foreach ($config->enabled_modules as $module) {
$camelized = camelize($module);
if (!class_exists($camelized)) continue;
$modules[$module] = new $camelized;
$modules[$module]->safename = $module;
if (!ADMIN) continue;
foreach (YAML::load(MODULES_DIR."/".$module."/info.yaml") as $key => $val)
$modules[$module]->$key = (is_string($val)) ? __($val, $module) : $val ;
}
# Now that they're all instantiated, call __init().
foreach ($feathers as $feather)
if (method_exists($feather, "__init"))
$feather->__init();
foreach ($modules as $module)
if (method_exists($module, "__init"))
$module->__init();
if (INDEX) {
$route->check_custom_routes();
# If the post viewing URL is the same as the page viewing URL, check for viewing a page first.
if (preg_match("/^\((clean|url)\)\/?$/", $config->post_url)) {
$route->check_viewing_page();
$route->check_viewing_post(true);
} else {
$route->check_viewing_post();
$route->check_viewing_page(true);
}
}
if (INDEX or ADMIN)
$trigger->call("runtime");
# Array: $statuses
# An array of post statuses that <Visitor> can view.
$statuses = array("public");
if (logged_in())
$statuses[] = "registered_only";
if ($visitor->group()->can("view_private"))
$statuses[] = "private";
Post::$private = "status IN ('".implode("', '", $statuses)."')";
Post::$enabled_feathers = "feather IN ('".implode("', '", $config->enabled_feathers)."')";
# Load the translation engine
load_translator("chyrp", INCLUDES_DIR."/locale/".$config->locale.".mo");
# Load the theme translator
if (file_exists(THEME_DIR."/locale/".$config->locale.".mo"))
load_translator("theme", THEME_DIR."/locale/".$config->locale.".mo");
if (INDEX or ADMIN or AJAX) {
if (!$visitor->group()->can("view_site") and !in_array($route->action, array("login", "logout", "register", "lost_password")))
if ($trigger->exists("can_not_view_site"))
$trigger->call("can_not_view_site");
else
show_403(__("Access Denied"), __("You are not allowed to view this site."));
if (isset($_GET['feed']))
$config->posts_per_page = $config->feed_items;
if (!ADMIN and method_exists($main, $route->action))
call_user_func(array($main, $route->action));
# Call any plugin route functions
if (INDEX)
$trigger->call("route_".$route->action);
if (isset($_GET['feed']))
if ($trigger->exists($route->action."_feed")) # What about custom feeds?
$trigger->call($route->action."_feed");
elseif (isset($posts)) # Are there already posts to show?
$route->action = "feed";
else
redirect(fallback($config->feed_url, url("feed/"), true)); # Really? Nothing? Too bad. MAIN FEED 4 U.
}
