page: prefer named template in parent directory

[minimedit.git] / page.php

diff --git a/page.php b/page.php
index f6c2346e17edbfa31ac7c654c3b603425e8675f6..1f86e5b2c63fbff6d08a42be713ffba1491d028b 100644 (file)
--- a/page.php
+++ b/page.php
@@ -2,15 +2,84 @@
 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)
+               );
+       }
+       $doc = ob_get_clean();
+       if (!empty($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" . $doc;
+               }
+       }
+       return str_replace(array_keys($rep), array_values($rep), $doc);
+}
+
+# custom error handling
+
+define('DOCROOT', getcwd().'/');
+
+function fail($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("$Page/.private")) {
+               # access restriction
+               if (empty($User)) {
+                       http_response_code(303);
+                       $target = urlencode($_SERVER['REQUEST_URI']);
+                       header("Location: /login?goto=$target");
+                       exit;
+               }
+               $PageAccess = $Page;
+       }
+
        if (file_exists("$Page.php")) {
                break;
        }
@@ -23,44 +92,40 @@ 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";
 
-# prepare static contents
+$found = FALSE;
+if (file_exists("$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');
+}
 
-include_once 'page.inc.php'; # global html
+print "</div>\n\n";
 
-if (file_exists("$Page$Args/index.html")) {
-       $Args .= '/index';
-}
+# execute dynamic code
 
-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.php";
 }
 
-# output prepared html
+# global html
 
-print $prepend;
+include_once 'page.inc.php';
 
-print '<div class="static">'."\n\n";
-if (file_exists("$Page$Args.html")) {
-include "./$Page$Args.html"; # static contents
+if (!$found) {
+       # no resulting output
+       http_response_code(404);
+       ob_start();
+       @require "./404.html";
+       print getoutput([ 'url' => htmlspecialchars($_SERVER['REQUEST_URI']) ]);
 }
-print "</div>\n\n";
-
-print $append;