X-Git-Url: http://git.shiar.net/minimedit.git/blobdiff_plain/2b56d0fa69a4608fb1b582fca5f08d343f5b90eb..85536cb70f85743054b6b3abfc36d05662e6878d:/page.php

diff --git a/page.php b/page.php
index f6c2346..2c3a68a 100644
--- a/page.php
+++ b/page.php
@@ -2,16 +2,102 @@
 error_reporting(E_ALL);
 ini_set('display_errors', TRUE);
 
+function abort($body, $status = NULL) {
+	if ($status) header("HTTP/1.1 $status");
+	print "$body\n";
+	exit;
+}
+
+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;
+		}
+	}
+
+	return preg_replace_callback(
+		'< \[\[ ([^]]*) \]\] >x',
+		function ($sub) use ($blocks) {
+			list ($placeholder, $name) = $sub;
+			if (isset($blocks[$name])) {
+				$html = $blocks[$name];
+			}
+			else {
+				$html = '<strong class="warn"><em>'.$name.'</em> ontbreekt</strong>';
+			}
+			return sprintf('<!--BLOCK:%s-->%s<!--/-->',
+				is_numeric($name) ? '' : $placeholder, # edit replacement
+				preg_replace('{<!--[^-]*-->}', '', $html) # contents
+			);
+		},
+		$doc
+	);
+}
+
+# custom error handling
+
+define('DOCROOT', getcwd().'/');
+
+function fail($error)
+{
+	http_response_code(500);
+	include_once 'page.inc.php';
+	ob_start();
+	require_once DOCROOT.'500.html';
+	print getoutput(['debug' => $error]);
+}
+
+set_exception_handler('fail');
+
+define('E_FATAL', E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR);
+
+set_error_handler(function ($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
+
 include_once 'auth.inc.php';
 $Edit = isset($_GET['edit']);
 
 # distinguish subpage Args from topmost Page script
 
 $Args = '';
-$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("$Page.php")) {
+	if (file_exists("$Page/.private")) {
+		# access restriction
+		if (empty($User)) {
+			http_response_code(303);
+			$target = urlencode($_SERVER['REQUEST_URI']);
+			header("Location: /login?goto=$target");
+			exit;
+		}
+		$PageAccess = $Page;
+	}
+
+	if (file_exists("$Page/index.php")) {
 		break;
 	}
 
@@ -23,44 +109,43 @@ while (TRUE) {
 	}
 }
 
-# execute dynamic code
+# load static contents
 
-$prepend = $append = '';
-if ($Page) {
-	require "./$Page.php";
-	if (ob_get_level() > 1) $append  = ob_get_clean();
-	if (ob_get_level() > 0) $prepend = ob_get_clean();
+ob_start(); # page body
+ob_start(); # inner html
+print '<div class="static">'."\n\n";
+
+$found = FALSE;
+if (file_exists("$Page$Args.html")) {
+	$found = include "./$Page$Args.html";
+}
+elseif (file_exists("$Page$Args/index.html")) {
+	$found = include "./$Page$Args/index.html";
+}
+elseif (!empty($User['admin'])) {
+	$found = include (file_exists("$Page/template.html") ? "$Page/template.html" : './template.html');
 }
 
-# prepare static contents
+print "</div>\n\n";
 
-include_once 'page.inc.php'; # global html
+# execute dynamic code
 
-if (file_exists("$Page$Args/index.html")) {
-	$Args .= '/index';
-}
+$Place = [
+	'user'  => $User['name'],
+	'url'   => htmlspecialchars($_SERVER['REQUEST_URI']),
+];
 
-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";
-	}
+if ($Page) {
+	$found |= require "./$Page/index.php";
 }
 
-# output prepared html
+# global html
 
-print $prepend;
-
-print '<div class="static">'."\n\n";
-if (file_exists("$Page$Args.html")) {
-include "./$Page$Args.html"; # static contents
+if (!$found) {
+	# no resulting output
+	http_response_code(404);
+	@require "./404.html";
 }
-print "</div>\n\n";
 
-print $append;
+include_once 'page.inc.php';