page: save granted access for admin options

[minimedit.git] / page.php

diff --git a/page.php b/page.php
index c88852416c9ccc531b015ce25eec163157d1e452..4120a01bd05b4d0a476fe88c5eebbecc51327e90 100644 (file)
--- a/page.php
+++ b/page.php
@@ -2,33 +2,121 @@
 error_reporting(E_ALL);
 ini_set('display_errors', TRUE);
 
+function getoutput($blocks = [])
+{
+       $rep = [];
+       foreach ($blocks as $name => $html) {
+               $rep["[[$name]]"] = sprintf('<!--BLOCK:%s-->%s<!--/-->',
+                       is_numeric($name) ? '' : "[[$name]]",
+                       preg_replace('{<!--[^-]*-->}', '', $html)
+               );
+       }
+       return str_replace(array_keys($rep), array_values($rep), ob_get_clean());
+}
+
+# custom error handling
+
+define('DOCROOT', getcwd().'/');
+
+function fail($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']);
 $Page = urldecode(trim($Page, '/')) ?: 'index';
 while (TRUE) {
-       if (file_exists("$Page/index.html")) {
-               $Page .= '/index';
-               break;
-       }
-       if (file_exists("$Page.html")) {
-               break;
+       if (file_exists("$Page/.private")) {
+               # access restriction
+               if (!isset($User)) {
+                       http_response_code(403);
+                       include_once 'page.inc.php';
+                       ob_start();
+                       @require_once './403.html';
+                       exit;
+               }
+               $PageAccess = $Page;
        }
+
        if (file_exists("$Page.php")) {
-               # unformatted script override
-               require "$Page.php";
-               exit;
+               break;
        }
 
        $up = strrpos($Page, '/');
+       $Args = substr($Page, $up) . $Args;
+       $Page = substr($Page, 0, $up);
        if ($up === FALSE) {
-               http_response_code(404);
-               $Page = '404';
                break;
        }
-       $Args = substr($Page, $up) . $Args;
-       $Page = substr($Page, 0, $up);
 }
 
-$Edit = isset($_GET['edit']);
+# load static contents
+
+ob_start(); # page body
+ob_start(); # inner html
+print '<div class="static">'."\n\n";
+
+$found = FALSE;
+if (file_exists("$Page$Args/index.html")) {
+       $found = include "./$Page$Args/index.html";
+}
+elseif (file_exists("$Page$Args.html")) {
+       $found = include "./$Page$Args.html";
+}
+elseif (isset($User) and $User['admin']) {
+       $found = include (file_exists("$Page/template.html") ? "$Page/template.html" : './template.html');
+}
+
+print "</div>\n\n";
+
+# execute dynamic code
+
+if ($Page) {
+       $found |= require "./$Page.php";
+}
+
+# global html
+
+include_once 'page.inc.php';
+
+if (!$found) {
+       # no resulting output
+       http_response_code(404);
+       ob_start();
+       @require "./404.html";
+       print getoutput([ 'url' => htmlspecialchars($_SERVER['REQUEST_URI']) ]);
+}
 
-include 'page.inc.php';