page: save document root for includes during shutdown

[minimedit.git] / page.php

diff --git a/page.php b/page.php
index 8b264bf7e35e6512e6ac2b6cebc8bfeeafa97f43..02886a77a04d88faac98d30f7b7570a1a23ba375 100644 (file)
--- a/page.php
+++ b/page.php
@@ -2,22 +2,54 @@
 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 './500.html';
+       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_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR))) return;
+       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']);
 
@@ -27,6 +59,17 @@ $Args = '';
 $Page = preg_replace('/\?.*/', '', $_SERVER['REQUEST_URI']);
 $Page = urldecode(trim($Page, '/')) ?: 'index';
 while (TRUE) {
+       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;
+               }
+       }
+
        if (file_exists("$Page.php")) {
                break;
        }
@@ -53,7 +96,7 @@ elseif (file_exists("$Page$Args.html")) {
        $found = include "./$Page$Args.html";
 }
 elseif (isset($User) and $User['admin']) {
-       $found = require (file_exists("$Page/template.html") ? "$Page/template.html" : './template.html');
+       $found = include (file_exists("$Page/template.html") ? "$Page/template.html" : './template.html');
 }
 
 print "</div>\n\n";
@@ -61,19 +104,7 @@ print "</div>\n\n";
 # execute dynamic code
 
 if ($Page) {
-       function getoutput($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());
-       }
-
-       $found |= require "./$Page.php";
+       $found |= @require "./$Page.php";
 }
 
 # global html
@@ -84,7 +115,7 @@ if (!$found) {
        # no resulting output
        http_response_code(404);
        ob_start();
-       require "./404.html";
+       @require "./404.html";
        print getoutput([ 'url' => htmlspecialchars($_SERVER['REQUEST_URI']) ]);
 }