X-Git-Url: http://git.shiar.nl/minimedit.git/blobdiff_plain/5b94cc8fb8d15c44eb5223f262d091b0fe286944..50f9b29cc21f5adef555d3cf21940124ceadb0eb:/page.php

diff --git a/page.php b/page.php
index f5e9749..8d2d01c 100644
--- a/page.php
+++ b/page.php
@@ -8,74 +8,6 @@ function abort($body, $status = NULL) {
 	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';
-	$doc = preg_replace('{\s*<(p|li|span) class="'.$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());
@@ -83,11 +15,20 @@ set_include_path(implode(PATH_SEPARATOR, [ DOCROOT, __DIR__ ]));
 
 function fail($error)
 {
+	global $User, $Page;
 	http_response_code(500);
+	if (!isset($Page)) {
+		require_once('article.inc.php');
+		$Page = new ArchiveArticle(NULL);
+		$Page->title = 'Fout';
+	}
 	include_once 'page.inc.php';
+
 	ob_start();
-	require_once '500.inc.html';
-	print getoutput(['debug' => $error]);
+	require '500.inc.html';
+	$Page->place['debug'] = htmlspecialchars($error);
+	$Page->raw = ob_get_clean();
+	print $Page->render();
 }
 
 set_exception_handler('fail');
@@ -113,42 +54,16 @@ error_reporting(error_reporting() & ~E_FATAL);
 
 # user login and control
 
-$User = NULL;
-include_once 'auth.inc.php';
+include_once 'auth.inc.php'; // sets global $User
 $Edit = isset($_GET['edit']);
 
-# distinguish subpage Args from topmost Page script
-
-$Args = '';
-$Page = preg_replace('/\?.*/', '', @$_SERVER['PATH_INFO'] ?: $_SERVER['REQUEST_URI']);
-$Page = urldecode(trim($Page, '/')) ?: 'index';
-while (TRUE) {
-	if (file_exists("$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;
-	}
+# setup requested page
 
-	$up = strrpos($Page, '/');
-	$Args = substr($Page, $up) . $Args;
-	$Page = substr($Page, 0, $up);
-	if ($up === FALSE) {
-		break;
-	}
-}
+$request = preg_replace('/\?.*/', '', @$_SERVER['PATH_INFO'] ?: $_SERVER['REQUEST_URI']);
+$request = urldecode(trim($request, '/')) ?: 'index';
 
-$staticpage = NULL;
-if (file_exists("$Page$Args.html")) {
-	$staticpage = "$Page$Args.html";
+$staticpage = "$request.html";
+if (file_exists($staticpage)) {
 	if (is_link($staticpage)) {
 		$target = preg_replace('/\.html$/', '', readlink($staticpage));
 		header("HTTP/1.1 302 Shorthand");
@@ -156,49 +71,76 @@ if (file_exists("$Page$Args.html")) {
 		exit;
 	}
 }
-elseif (file_exists("$Page$Args/index.html")) {
-	$staticpage = "$Page$Args/index.html";
-}
-elseif ($User and $User->admin("edit $Page$Args")) {
-	$staticpage = (file_exists("$Page/template.inc.html") ? "$Page/template.inc.html" : 'template.inc.html');
+elseif (file_exists("$request/index.html")) {
+	$staticpage = "$request/index.html";
 }
 
-# load static contents
-
 require_once('article.inc.php');
-$Article = new ArchiveArticle($staticpage);
-
-ob_start(); # page body
-ob_start(); # inner html
-print '<div class="static">'."\n\n";
-
-$found = FALSE;
-if (isset($Article->raw)) {
-	print $Article->raw;
-	$found = 1;
+$Page = new ArchiveArticle($staticpage);
+
+if ($Page->restricted) {
+	# access restriction
+	if (!$User->login) {
+		http_response_code(303);
+		$target = urlencode($Page->link);
+		header("Location: /login?goto=$target");
+		exit;
+	}
 }
 
-print "</div>\n\n";
+# prepare page contents
 
-# execute dynamic code
+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
+])));
 
-$Place = [];
+$Page->place += [
+	'user'  => $User->login ?: '',
+	'url'   => htmlspecialchars($_SERVER['REQUEST_URI']),
+];
 
-if ($Page) {
-	$found |= require "./$Page/index.php";
+if (!isset($Page->raw) and $User->admin("edit {$Page->link}")) {
+	# open bottom template as initial contents
+	$template = 'template.inc.html';
+	if ($Page->handler and file_exists("{$Page->handler}/$template")) {
+		$template = "{$Page->handler}/$template";
+	}
+	$Page->raw($template);
+	$Page->meta['article:published_time'] = date('Y-m-d h:i:s O');
+	$Page->meta['article:author'] = '/' . $User->dir;
 }
 
-$Place += [
-	'user'  => $User ? $User->login : '',
-	'url'   => htmlspecialchars($_SERVER['REQUEST_URI']),
-];
+if (isset($Page->raw)) {
+	if ($User->admin("edit {$Page->link}")) {
+		# restore meta tags in static contents for editing
+		foreach (array_reverse($Page->meta) as $metaprop => $val) {
+			$Page->raw = sprintf(
+				'<meta property="%s" content="%s">'."\n",
+				$metaprop, $val
+			) . $Page->raw;
+		}
+	}
+	$Page->raw = '<div class="static">'."\n\n".$Page->raw."</div>\n\n";
+}
 
-# global html
+# output dynamic and/or static html
 
-if (!$found) {
-	# no resulting output
-	http_response_code(404);
-	@require '404.inc.html';
+ob_start();
+if ($Page->handler and !require("./{$Page->handler}/index.php")) {
+	# replace contents by code output on false return
+	$Page->raw = ob_get_clean();
+}
+else {
+	# keep article contents
+	if (!isset($Page->raw)) {
+		# no resulting output
+		http_response_code(404);
+		@require '404.inc.html';
+		$Page->raw = ob_get_clean();
+	}
 }
 
 include_once 'page.inc.php';