[dokuwiki] Re: patch to configure location of acl.auth.php

On Thu, 05 Jul 2007 19:10:34 +0200, "Simon Heimlicher"
<heimlicher@xxxxxxxxxxxxxx> said:
> I have a setup where I only use one dokuwiki directory and many data 
> directories ("wiki farm"), and for this setup I had to replace all 
> occurrences of DOKU_CONF.'acl.auth.php' with $conf['aclfile'].

I'm doing something similar. The solution I came up with uses a hosts
configuration file to set the DOKU_CONF and DOKU_URL constants. This
required modifying inc/init.php to read the hosts.conf early. I also had
to define DOKU_DIR as an alternative to DOKU_INC because the sitemaps
were being written to the wrong place.

Diff patch is attached. The configuration looks like this:
# hosts.conf.php
# <?php exit()?>
# DokuWiki hosts configuration file
# Defines URIs for wikis and the directories they live in
# URI pattern <sp> Canonical URI <sp> Base directory
# Pattern can contain subpatterns that will be replaced in the URI and
base dir.
^(www.)?whoopdedo.org/doku/     http://whoopdedo.org/doku/     
/path/to/doku/
^(www.)?whoopdedo.org/moe/     http://whoopdedo.org/moe/     
/path/to/moe/
-- tom
telliamed@xxxxxxxxxxx

-- 
http://www.fastmail.fm - The professional email service


--- _darcs/pristine/inc/init.php        2007-07-05 17:36:20.000000000 -0400
+++ inc/init.php        2007-07-19 19:38:29.000000000 -0400
@@ -13,6 +13,11 @@
   // define the include path
   if(!defined('DOKU_INC')) 
define('DOKU_INC',realpath(dirname(__FILE__).'/../').'/');
 
+  if (@file_exists(DOKU_INC.'conf/hosts.conf.php')) {
+    getHostsConfig(file(DOKU_INC.'conf/hosts.conf.php'));
+  }
+  if(!defined('DOKU_DIR')) define('DOKU_DIR',DOKU_INC);
+
   // define config path (packagers may want to change this to /etc/dokuwiki/)
   if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
 
@@ -198,11 +203,16 @@
  */
 function init_path($path){
   // check existance
-  $p = realpath($path);
-  if(!@file_exists($p)){
-    $p = realpath(DOKU_INC.$path);
+  if (substr($path,0,1)=='/') {
+    $p = realpath($path);
+    if(!@file_exists($p)) return '';
+  }else{
+    $p = realpath(DOKU_DIR.$path);
     if(!@file_exists($p)){
-      return '';
+      $p = realpath(DOKU_INC.$path);
+      if(!@file_exists($p)){
+        return '';
+      }
     }
   }
 
@@ -387,5 +397,65 @@
   exit;
 }
 
+function getHostsConfig($lines) {
+  //split hostheader into host and port
+  list($host,$port) = explode(':',$_SERVER['HTTP_HOST']);
+  if(!$port)  $port = $_SERVER['SERVER_PORT'];
+  if(!$port)  $port = 80;
+  // see if HTTPS is enabled - apache leaves this empty when not available,
+  // IIS sets it to 'off', 'false' and 'disabled' are just guessing
+  if (!isset($_SERVER['HTTPS']) || 
preg_match('/^(|off|false|disabled)$/i',$_SERVER['HTTPS'])){
+    if ($port == '80') $port='';
+  }else{
+    if ($port == '443') $port='';
+  }
+  if($port) $port = ':'.$port;
+  if(!empty($_SERVER['REQUEST_URI'])){
+    $dir = $_SERVER['REQUEST_URI'];
+  }elseif(!empty($_SERVER['SCRIPT_URL'])){
+    $dir = $_SERVER['SCRIPT_URL'];
+  }elseif(!empty($_SERVER['SCRIPT_NAME'])){
+    $dir = $_SERVER['SCRIPT_NAME'];
+  }elseif(!empty($_SERVER['PHP_SELF'])){
+    $dir = $_SERVER['PHP_SELF'];
+  }elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
+    $dir = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
+                         $_SERVER['SCRIPT_FILENAME']);
+  }else{
+    $dir = '/'; //probably wrong
+  }
+  $dir = str_replace('\\','/',$dir); #bugfix for weird WIN behaviour
+  $dir = preg_replace('#//+#','/',$dir);
+  $request = $host.$port.$dir;
+  $uri = '';
+  $dir = '';
+  foreach ($lines as $line) {
+    $line = preg_replace('/#.*$/','',$line); //ignore comments
+    $line = trim($line);
+    if(empty($line)) continue;
+    $host = preg_split('/\s+/', $line);
+    if (count($host) >= 3) {
+      if (preg_match('!'.$host[0].'!', $request, $matches)) {
+        $uri = $host[1];
+        $dir = $host[2];
+        $n = 0;
+        foreach ($matches as $match) {
+          $uri = preg_replace('/\$'.$n.'/',$match,$uri);
+          $dir = preg_replace('/\$'.$n.'/',$match,$dir);
+          $n++;
+        }
+        if (substr($uri,-1,1) != '/') $uri = $uri.'/';
+        if (substr($dir,-1,1) != '/') $dir = $dir.'/';
+        if(!defined('DOKU_DIR')) define('DOKU_DIR',$dir);
+        if(!defined('DOKU_CONF')) define('DOKU_CONF',$dir.'conf/');
+        if(!defined('DOKU_URL')) define('DOKU_URL',$uri);
+        if(!defined('DOKU_REL')) {
+          define('DOKU_REL',preg_replace('#^https?://[^/]+#','',$uri));
+        }
+        return;
+      }
+    }
+  }
+}
 
 //Setup VIM: ex: et ts=2 enc=utf-8 :

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