error_reporting(E_ALL);
ini_set('display_errors', TRUE);
-set_exception_handler(function ($error) {
+function abort($body, $status = NULL) {
+ if ($status) header("HTTP/1.1 $status");
+ print "$body\n";
+ exit;
+}
+
+function placeholder_include($name, $params = [])
+{
+ $path = stream_resolve_include_path("widget/$name.php");
+ if (!file_exists($path)) {
+ return '<strong class="warn"><em>'.$name.'</em> ontbreekt</strong>';
+ }
+
+ ob_start();
+ $Page = $GLOBALS['Page'] . $GLOBALS['Args'];
+ $Args = '';
+ $Place = $GLOBALS['Place'];
+ foreach ($params as $param) {
+ if ($set = strpos($param, '=')) {
+ $Place[ substr($param, 0, $set) ] = substr($param, $set + 1);
+ }
+ elseif (!empty($param)) {
+ $Args .= '/'.$param;
+ }
+ }
+ try {
+ include "widget/$name.php";
+ return ob_get_clean();
+ }
+ catch (Exception $e) {
+ return sprintf('<strong class="warn">%s</strong>',
+ "fout in <em>$name</em>: {$e->getMessage()}"
+ );
+ }
+}
+
+function getoutput($blocks = [])
+{
+ $doc = ob_get_clean();
+
+ if (!empty($blocks['warn'])) {
+ $warn = '<p class="warn">[[warn]]</p>';
+ if ($offset = strpos($doc, '</h2>')) {
+ $doc = substr_replace($doc, "\n\n".$warn, $offset + 5, 0);
+ }
+ else {
+ $doc = $warn . "\n\n" . $doc;
+ }
+ }
+
+ # keep either login or logout parts depending on user level
+ global $User;
+ $hideclass = empty($User) ? 'login' : 'logout';
+ $doc = preg_replace('{\s*<([a-z]+) class="'.$hideclass.'">.*?</\1>}s', '', $doc);
+
+ return preg_replace_callback(
+ '{ (?<! <!--BLOCK: ) \[\[ ([^] ]+) ([^]]*) \]\] }x',
+ function ($sub) use ($blocks) {
+ list ($placeholder, $name, $params) = $sub;
+ if (isset($blocks[$name])) {
+ $html = $blocks[$name];
+ }
+ else {
+ $html = placeholder_include($name, explode(' ', $params));
+ }
+ return sprintf('<!--BLOCK:%s-->%s<!--/-->',
+ is_numeric($name) ? '' : $placeholder, # edit replacement
+ preg_replace('{<!--[^-]*-->}', '', $html) # contents
+ );
+ },
+ $doc
+ );
+}
+
+# custom error handling
+
+define('DOCROOT', getcwd());
+set_include_path(implode(PATH_SEPARATOR, [ DOCROOT, __DIR__ ]));
+
+function fail($error)
+{
+ global $User, $Page, $Args;
+ http_response_code(500);
+ if (!isset($Article)) {
+ $Article = new ArchiveArticle(NULL);
+ $Article->title = 'Fout';
+ }
include_once 'page.inc.php';
- include_once '500.php';
+ ob_start();
+ require '500.inc.html';
+ print getoutput(['debug' => htmlspecialchars($error)]);
+}
+
+set_exception_handler('fail');
+
+define('E_FATAL', E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR);
+
+set_error_handler(function ($level, $error, $file, $line) {
+ if ($level & E_FATAL) {
+ fail($error);
+ return;
+ }
+ return FALSE;
});
+register_shutdown_function(function () {
+ # display failure page for fatal exceptions
+ $error = error_get_last();
+ if (!($error['type'] & E_FATAL)) return;
+ fail("Fatal: $error[message] in $error[file]:$error[line]");
+});
+
+error_reporting(error_reporting() & ~E_FATAL);
+
+# user login and control
+
+$User = NULL;
include_once 'auth.inc.php';
$Edit = isset($_GET['edit']);
-# distinguish subpage Args from topmost Page script
+# setup requested page
$Args = '';
-$Page = preg_replace('/\?.*/', '', $_SERVER['REQUEST_URI']);
+$Page = preg_replace('/\?.*/', '', @$_SERVER['PATH_INFO'] ?: $_SERVER['REQUEST_URI']);
$Page = urldecode(trim($Page, '/')) ?: 'index';
-while (TRUE) {
- if (file_exists("$Page.php")) {
- break;
- }
- $up = strrpos($Page, '/');
- $Args = substr($Page, $up) . $Args;
- $Page = substr($Page, 0, $up);
- if ($up === FALSE) {
- break;
+$staticpage = "$Page.html";
+if (file_exists($staticpage)) {
+ if (is_link($staticpage)) {
+ $target = preg_replace('/\.html$/', '', readlink($staticpage));
+ header("HTTP/1.1 302 Shorthand");
+ header("Location: $target");
+ exit;
}
}
-
-# execute dynamic code
-
-$prepend = $append = '';
-if ($Page) {
- require "./$Page.php";
- if (ob_get_level() > 1) $append = ob_get_clean();
- if (ob_get_level() > 0) $prepend = ob_get_clean();
+elseif (file_exists("$Page/index.html")) {
+ $staticpage = "$Page/index.html";
}
-# prepare static contents
+require_once('article.inc.php');
+$Article = new ArchiveArticle($staticpage);
-include_once 'page.inc.php'; # global html
+$Page = $Article->handler;
+$Args = $Article->path;
-if (file_exists("$Page$Args/index.html")) {
- $Args .= '/index';
+if ($PageAccess = $Article->restricted) {
+ # access restriction
+ if (empty($User)) {
+ http_response_code(303);
+ $target = urlencode($Article->link);
+ header("Location: /login?goto=$target");
+ exit;
+ }
}
-if (!$Page and !file_exists("$Page$Args.html")) {
- # include not found
- $Args = '';
- if (isset($User) and $User['admin']) {
- $Page = 'template';
- }
- else {
- $Page = '404';
- require "./$Page.php";
+# prepare page contents
+
+header(sprintf('Content-Security-Policy: %s', implode('; ', [
+ "default-src 'self' 'unsafe-inline' http://cdn.ckeditor.com", # some overrides remain
+ "img-src 'self' data: http://cdn.ckeditor.com", # inline svg (in css)
+ "base-uri 'self'", # only local pages
+ "frame-ancestors 'none'", # prevent malicious embedding
+])));
+
+ob_start(); # page body
+$Place = [
+ 'user' => $User ? $User->login : '',
+ 'url' => htmlspecialchars($_SERVER['REQUEST_URI']),
+];
+
+if (isset($Article->raw)) {
+ if ($User and $User->admin("edit $Page$Args")) {
+ # restore meta tags in static contents for editing
+ foreach (array_reverse($Article->meta) as $metaprop => $val) {
+ $Article->raw = sprintf(
+ '<meta property="%s" content="%s" />'."\n",
+ $metaprop, $val
+ ) . $Article->raw;
+ }
}
}
+elseif ($User and $User->admin("edit {$Article->link}")) {
+ $Article->raw(file_exists("$Page/template.inc.html") ? "$Page/template.inc.html" : 'template.inc.html');
+}
+if (isset($Article->raw)) {
+ $Article->raw = '<div class="static">'."\n\n".$Article->raw."</div>\n\n";
+}
-# output prepared html
-
-print $prepend;
+# output dynamic and/or static html
-print '<div class="static">'."\n\n";
-if (file_exists("$Page$Args.html")) {
-include "./$Page$Args.html"; # static contents
+if (!$Page or require("./$Page/index.php")) {
+ # static contents
+ if (isset($Article->raw)) {
+ print $Article->raw;
+ }
+ else {
+ # no resulting output
+ http_response_code(404);
+ @require '404.inc.html';
+ }
}
-print "</div>\n\n";
-print $append;
+include_once 'page.inc.php';