146 lines
4.1 KiB
PHP
146 lines
4.1 KiB
PHP
<?php
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/**
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* \mainpage Shimmie2 / SCore Documentation
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*
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* SCore is a framework designed for writing flexible, extendable applications.
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* Whereas most PHP apps are built monolithicly, score's event-based nature
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* allows parts to be mixed and matched. For instance, the most famous
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* collection of score extensions is the Shimmie image board, which includes
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* user management, a wiki, a private messaging system, etc. But one could
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* easily remove the image board bits and simply have a wiki with users and
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* PMs; or one could replace it with a blog module; or one could have a blog
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* which links to images on an image board, with no wiki or messaging, and so
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* on and so on...
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*
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* To learn about the innards of SCore, start with the \ref overview.
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*
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*
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* \page overview High Level Overview
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*
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* Dijkstra will kill me for personifying my architecture, but I can't think
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* of a better way without going into all the little details.
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*
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* There are a bunch of Extension subclasses, they talk to eachother by sending
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* and recieving Event subclasses. The topic of conversation is decided by the
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* initial PageRequestEvent, and each extension puts its notes into the shared
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* Page data store. Once the conversation is over, the Page is passed to the
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* current theme's Layout class which will tidy up the data and present it to
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* the user.
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*
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* To learn more about the architecture:
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*
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* \li \ref eande
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* \li \ref themes
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*
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* To learn more about practical development:
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*
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* \li \ref scglobals
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* \li \ref unittests
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* \li \ref hello
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*
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* \page scglobals SCore Globals
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*
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* There are four global variables which are pretty essential to most extensions:
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*
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* \li $config -- some variety of Config subclass
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* \li $database -- a Database object used to get raw SQL access
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* \li $page -- a Page to holds all the loose bits of extension output
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* \li $user -- the currently logged in User
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*
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* Each of these can be imported at the start of a function with eg "global $page, $user;"
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*/
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// set up and purify the environment
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define("DEBUG", true);
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define("SCORE_VERSION", 's2hack');
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define("VERSION", 'trunk');
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if(!file_exists("config.php")) {
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header("Location: install.php");
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exit;
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}
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require_once "core/util.inc.php";
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_version_check();
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_sanitise_environment();
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try {
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// load base files
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$files = array_merge(glob("core/*.php"), glob("ext/*/main.php"));
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foreach($files as $filename) {
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require_once $filename;
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}
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// connect to the database
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$database = new Database();
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$database->db->fnExecute = '_count_execs';
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$config = new DatabaseConfig($database);
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// load the theme parts
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$_theme = $config->get_string("theme", "default");
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if(!file_exists("themes/$_theme")) $_theme = "default";
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if(file_exists("themes/$_theme/custompage.class.php")) require_once "themes/$_theme/custompage.class.php";
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require_once "themes/$_theme/layout.class.php";
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require_once "themes/$_theme/themelet.class.php";
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$themelets = glob("ext/*/theme.php");
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foreach($themelets as $filename) {
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require_once $filename;
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}
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$custom_themelets = glob("themes/$_theme/*.theme.php");
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if($custom_themelets) {
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$m = array();
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foreach($custom_themelets as $filename) {
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if(preg_match("/themes\/$_theme\/(.*)\.theme\.php/",$filename,$m)
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&& in_array("ext/{$m[1]}/theme.php", $themelets)) {
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require_once $filename;
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}
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}
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}
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// initialise the extensions
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foreach(get_declared_classes() as $class) {
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if(is_subclass_of($class, "SimpleExtension")) {
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$c = new $class();
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$c->i_am($c);
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add_event_listener($c);
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}
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}
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// start the page generation waterfall
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$page = class_exists("CustomPage") ? new CustomPage() : new Page();
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$user = _get_user($config, $database);
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send_event(new InitExtEvent());
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send_event(_get_page_request());
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$page->display();
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// for databases which support transactions
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if($database->engine->name != "sqlite") {
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$database->db->CommitTrans(true);
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}
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}
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catch(Exception $e) {
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$version = VERSION;
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$message = $e->getMessage();
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header("HTTP/1.0 500 Internal Error");
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print <<<EOD
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<html>
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<head>
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<title>Internal error - SCore-$version</title>
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</head>
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<body>
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<h1>Internal Error</h1>
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<p>$message
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</body>
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</html>
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EOD;
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}
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?>
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