contact: silence warning checking missing client headers

[minimedit.git] / page.php

diff --git a/page.php b/page.php
index 12e06900b22d1993f3aa2f0aaa8dd0ffff523a18..ed0ec1b9af93772e0b9cbbbc15e1721846ad9ffe 100644 (file)
--- a/page.php
+++ b/page.php
@@ -54,7 +54,7 @@ function getoutput($blocks = [])
 
        # keep either login or logout parts depending on user level
        global $User;
-       $hideclass = empty($User) ? 'login' : 'logout';
+       $hideclass = $User && property_exists($User, 'login') && $User->login ? 'logout' : 'login';
        $doc = preg_replace('{\s*<([a-z]+) class="'.$hideclass.'">.*?</\1>}s', '', $doc);
 
        return preg_replace_callback(
@@ -86,6 +86,7 @@ function fail($error)
        global $User, $Page, $Args;
        http_response_code(500);
        if (!isset($Article)) {
+               require_once('article.inc.php');
                $Article = new ArchiveArticle(NULL);
                $Article->title = 'Fout';
        }
@@ -118,8 +119,7 @@ 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']);
 
 # setup requested page
@@ -149,7 +149,7 @@ $Args = $Article->path;
 
 if ($PageAccess = $Article->restricted) {
        # access restriction
-       if (empty($User)) {
+       if (!$User->login) {
                http_response_code(303);
                $target = urlencode($Article->link);
                header("Location: /login?goto=$target");
@@ -159,14 +159,21 @@ if ($PageAccess = $Article->restricted) {
 
 # 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 : '',
+       'user'  => $User->login ?: '',
        'url'   => htmlspecialchars($_SERVER['REQUEST_URI']),
 ];
 
 if (isset($Article->raw)) {
-       if ($User and $User->admin("edit $Page$Args")) {
+       if ($User->admin("edit $Page$Args")) {
                # restore meta tags in static contents for editing
                foreach (array_reverse($Article->meta) as $metaprop => $val) {
                        $Article->raw = sprintf(
@@ -176,7 +183,7 @@ if (isset($Article->raw)) {
                }
        }
 }
-elseif ($User and $User->admin("edit {$Article->link}")) {
+elseif ($User->admin("edit {$Article->link}")) {
        $Article->raw(file_exists("$Page/template.inc.html") ? "$Page/template.inc.html" : 'template.inc.html');
 }
 if (isset($Article->raw)) {