nieuws/feed: atom content type and link attributes

[minimedit.git] / page.php

diff --git a/page.php b/page.php
index 02886a77a04d88faac98d30f7b7570a1a23ba375..175c2eb30f71e51c3cbf1509425b1e2987221953 100644 (file)
--- a/page.php
+++ b/page.php
@@ -2,28 +2,86 @@
 error_reporting(E_ALL);
 ini_set('display_errors', TRUE);
 
-function getoutput($blocks = [])
+function abort($body, $status = NULL) {
+       if ($status) header("HTTP/1.1 $status");
+       print "$body\n";
+       exit;
+}
+
+function placeholder_include($name, $params = [])
 {
-       $rep = [];
-       foreach ($blocks as $name => $html) {
-               $rep["[[$name]]"] = sprintf('<!--BLOCK:%s-->%s<!--/-->',
-                       is_numeric($name) ? '' : "[[$name]]",
-                       preg_replace('{<!--[^-]*-->}', '', $html)
+       $path = stream_resolve_include_path("$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 "$name.php";
+               return ob_get_clean();
+       }
+       catch (Exception $e) {
+               return sprintf('<strong class="warn">%s</strong>',
+                       "fout in <em>$name</em>: {$e->getMessage()}"
                );
        }
-       return str_replace(array_keys($rep), array_values($rep), ob_get_clean());
+}
+
+function getoutput($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;
+               }
+       }
+
+       return preg_replace_callback(
+               '< \[\[ ([^] ]+) ([^]]*) \]\] >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().'/');
+define('DOCROOT', getcwd());
+set_include_path(implode(PATH_SEPARATOR, [ DOCROOT, __DIR__ ]));
 
 function fail($error)
 {
        http_response_code(500);
        include_once 'page.inc.php';
        ob_start();
-       require_once DOCROOT.'500.html';
+       require_once '500.html';
        print getoutput(['debug' => $error]);
 }
 
@@ -56,21 +114,21 @@ $Edit = isset($_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("$Page/.private")) {
                # access restriction
-               if (!isset($User)) {
-                       http_response_code(403);
-                       include_once 'page.inc.php';
-                       ob_start();
-                       @require_once './403.html';
+               if (empty($User)) {
+                       http_response_code(303);
+                       $target = urlencode($_SERVER['REQUEST_URI']);
+                       header("Location: /login?goto=$target");
                        exit;
                }
+               $PageAccess = $Page;
        }
 
-       if (file_exists("$Page.php")) {
+       if (file_exists("$Page/index.php")) {
                break;
        }
 
@@ -82,6 +140,23 @@ while (TRUE) {
        }
 }
 
+$staticpage = NULL;
+if (file_exists("$Page$Args.html")) {
+       $staticpage = "$Page$Args.html";
+       if (is_link($staticpage)) {
+               $target = preg_replace('/\.html$/', '', readlink($staticpage));
+               header("HTTP/1.1 302 Shorthand");
+               header("Location: $target");
+               exit;
+       }
+}
+elseif (file_exists("$Page$Args/index.html")) {
+       $staticpage = "$Page$Args/index.html";
+}
+elseif (!empty($User['admin'])) {
+       $staticpage = (file_exists("$Page/template.html") ? "$Page/template.html" : 'template.html');
+}
+
 # load static contents
 
 ob_start(); # page body
@@ -89,33 +164,32 @@ 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") ? "$Page/template.html" : './template.html');
+if (isset($staticpage)) {
+       $found = include "./$staticpage";
 }
 
 print "</div>\n\n";
 
 # execute dynamic code
 
+$Place = [];
+
 if ($Page) {
-       $found |= @require "./$Page.php";
+       $found |= require "./$Page/index.php";
 }
 
-# global html
+$Place += [
+       'user'  => empty($User) ? '' : $User['name'],
+       'url'   => htmlspecialchars($_SERVER['REQUEST_URI']),
+];
 
-include_once 'page.inc.php';
+# global html
 
 if (!$found) {
        # no resulting output
        http_response_code(404);
-       ob_start();
-       @require "./404.html";
-       print getoutput([ 'url' => htmlspecialchars($_SERVER['REQUEST_URI']) ]);
+       @require '404.html';
 }
 
+include_once 'page.inc.php';
+