From 06a41d4516182fb141ce9171ea79a52257c45e8b Mon Sep 17 00:00:00 2001
From: Tom Adams <tom@holizz.com>
Date: Thu, 30 Jul 2009 19:19:12 +0100
Subject: [PATCH] Enable 404-based rewrites for lighttpd installations in /

---
 index.php             | 18 ++++++++++++++++++
 lighttpd.conf.example |  2 ++
 2 files changed, 20 insertions(+)
 create mode 100644 lighttpd.conf.example

diff --git a/index.php b/index.php
index a73983b595..c6776b11bb 100644
--- a/index.php
+++ b/index.php
@@ -107,6 +107,24 @@ function checkMirror($action_obj)
 
 function main()
 {
+    // fake HTTP redirects using lighttpd's 404 redirects
+    if (strpos($_SERVER['SERVER_SOFTWARE'], 'lighttpd') !== false) {
+        $_lighty_url = $base_url.$_SERVER['REQUEST_URI'];
+        $_lighty_url = @parse_url($_lighty_url);
+
+        if ($_lighty_url['path'] != '/index.php' && $_lighty_url['path'] != '/') {
+            $_SERVER['QUERY_STRING'] = 'p='.substr($_lighty_url['path'], 1);
+            if ($_lighty_url['query'])
+                $_SERVER['QUERY_STRING'] .= '&'.$_lighty_url['query'];
+            parse_str($_lighty_url['query'], $_lighty_query);
+            foreach ($_lighty_query as $key => $val) {
+                $_GET[$key] = $_REQUEST[$key] = $val;
+            }
+            $_GET['p'] = $_REQUEST['p'] = substr($_lighty_url['path'], 1);
+        }
+    }
+    $_SERVER['REDIRECT_URL'] = preg_replace("/\?.+$/", "", $_SERVER['REQUEST_URI']);
+
     // quick check for fancy URL auto-detection support in installer.
     if (isset($_SERVER['REDIRECT_URL']) && (preg_replace("/^\/$/","",(dirname($_SERVER['REQUEST_URI']))) . '/check-fancy') === $_SERVER['REDIRECT_URL']) {
         die("Fancy URL support detection succeeded. We suggest you enable this to get fancy (pretty) URLs.");
diff --git a/lighttpd.conf.example b/lighttpd.conf.example
new file mode 100644
index 0000000000..b8baafc9e3
--- /dev/null
+++ b/lighttpd.conf.example
@@ -0,0 +1,2 @@
+# Add this line to lighttpd.conf to enable pseudo-rewrites using 404s
+server.error-handler-404 = "/index.php"