initial checkin

1 files changed, 367 insertions, 0 deletions

diff --git a/plugins/dokuwiki/inc/init.php b/plugins/dokuwiki/inc/init.php
new file mode 100644
index 0000000..272f759
--- /dev/null
+++ b/plugins/dokuwiki/inc/init.php
@@ -0,0 +1,367 @@
+<?php
+/**
+ * Initialize some defaults needed for DokuWiki
+ */
+
+  // start timing Dokuwiki execution
+  function delta_time($start=0) {
+    list($usec, $sec) = explode(" ", microtime());
+    return ((float)$usec+(float)$sec)-((float)$start);
+  }
+  define('DOKU_START_TIME', delta_time());
+
+  // define the include path
+  if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../').'/');
+
+  // define config path (packagers may want to change this to /etc/dokuwiki/)
+  if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
+
+  // check for error reporting override or set error reporting to sane values
+  if (!defined('DOKU_E_LEVEL') && @file_exists(DOKU_CONF.'report_e_all')) {
+    define('DOKU_E_LEVEL', E_ALL);
+  }
+  if (!defined('DOKU_E_LEVEL')) { error_reporting(E_ALL ^ E_NOTICE); }
+  else { error_reporting(DOKU_E_LEVEL); }
+
+  // init memory caches
+  global $cache_revinfo;  $cache_revinfo = array();
+  global $cache_wikifn;   $cache_wikifn = array();
+  global $cache_cleanid;  $cache_cleanid = array();
+  global $cache_authname; $cache_authname = array();
+
+  //prepare config array()
+  global $conf;
+  if (!defined('DOKU_UNITTEST')) {
+    $conf = array();
+
+    // load the config file(s)
+    require_once(DOKU_CONF.'dokuwiki.php');
+    if(@file_exists(DOKU_CONF.'local.php')){
+      require_once(DOKU_CONF.'local.php');
+    }
+  }
+
+  //prepare language array
+  global $lang;
+  $lang = array();
+
+  // define baseURL
+  if(!defined('DOKU_BASE')) define('DOKU_BASE',getBaseURL());
+  if(!defined('DOKU_URL'))  define('DOKU_URL',getBaseURL(true));
+
+  // define cookie and session id
+  if (!defined('DOKU_COOKIE')) define('DOKU_COOKIE', 'DW'.md5(DOKU_URL));
+
+  // define Plugin dir
+  if(!defined('DOKU_PLUGIN'))  define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
+
+  // define main script
+  if(!defined('DOKU_SCRIPT')) define('DOKU_SCRIPT','doku.php');
+
+  // define Template baseURL
+  if(!defined('DOKU_TPL')) define('DOKU_TPL',
+                                  DOKU_BASE.'lib/tpl/'.$conf['template'].'/');
+
+  // define real Template directory
+  if(!defined('DOKU_TPLINC')) define('DOKU_TPLINC',
+                                  DOKU_INC.'lib/tpl/'.$conf['template'].'/');
+
+  // make session rewrites XHTML compliant
+  @ini_set('arg_separator.output', '&amp;');
+
+  // enable gzip compression
+  if ($conf['gzip_output'] &&
+      !defined('DOKU_DISABLE_GZIP_OUTPUT') &&
+      function_exists('ob_gzhandler') &&
+      preg_match('/gzip|deflate/', $_SERVER['HTTP_ACCEPT_ENCODING'])) {
+    ob_start('ob_gzhandler');
+  }
+
+  // init session
+  if (!headers_sent() && !defined('NOSESSION')){
+    session_name("DokuWiki");
+    session_start();
+  }
+
+  // kill magic quotes
+  if (get_magic_quotes_gpc() && !defined('MAGIC_QUOTES_STRIPPED')) {
+    if (!empty($_GET))    remove_magic_quotes($_GET);
+    if (!empty($_POST))   remove_magic_quotes($_POST);
+    if (!empty($_COOKIE)) remove_magic_quotes($_COOKIE);
+    if (!empty($_REQUEST)) remove_magic_quotes($_REQUEST);
+#    if (!empty($_SESSION)) remove_magic_quotes($_SESSION); #FIXME needed ?
+    @ini_set('magic_quotes_gpc', 0);
+    define('MAGIC_QUOTES_STRIPPED',1);
+  }
+  @set_magic_quotes_runtime(0);
+  @ini_set('magic_quotes_sybase',0);
+
+  // disable gzip if not available
+  if($conf['compression'] == 'bz' && !function_exists('bzopen')){
+    $conf['compression'] = 'gz';
+  }
+  if($conf['compression'] == 'gz' && !function_exists('gzopen')){
+    $conf['compression'] = 0;
+  }
+
+  // precalculate file creation modes
+  init_creationmodes();
+
+  // automatic upgrade to script versions of certain files
+  scriptify(DOKU_CONF.'users.auth');
+  scriptify(DOKU_CONF.'acl.auth');
+
+
+/**
+ * Checks paths from config file
+ */
+function init_paths(){
+  global $conf;
+
+  $paths = array('datadir'   => 'pages',
+                 'olddir'    => 'attic',
+                 'mediadir'  => 'media',
+                 'metadir'   => 'meta',
+                 'cachedir'  => 'cache',
+                 'lockdir'   => 'locks');
+
+  foreach($paths as $c => $p){
+    if(empty($conf[$c]))  $conf[$c] = $conf['savedir'].'/'.$p;
+    $conf[$c]             = init_path($conf[$c]);
+    if(empty($conf[$c]))  nice_die("The $c does not exist, isn't accessable or writable.
+                               You should check your config and permission settings.
+                               Or maybe you want to <a href=\"install.php\">run the
+                               installer</a>?");
+  }
+
+  // path to old changelog only needed for upgrading
+  $conf['changelog_old'] = init_path((isset($conf['changelog']))?($conf['changelog']):($conf['savedir'].'/changes.log'));
+  if ($conf['changelog_old']=='') { unset($conf['changelog_old']); }
+  // hardcoded changelog because it is now a cache that lives in meta
+  $conf['changelog'] = $conf['metadir'].'/_dokuwiki.changes';
+}
+
+/**
+ * Checks the existance of certain files and creates them if missing.
+ */
+function init_files(){
+  global $conf;
+
+  $files = array( $conf['cachedir'].'/word.idx',
+                  $conf['cachedir'].'/page.idx',
+                  $conf['cachedir'].'/index.idx');
+
+  foreach($files as $file){
+    if(!@file_exists($file)){
+      $fh = @fopen($file,'a');
+      if($fh){
+        fclose($fh);
+        if($conf['fperm']) chmod($file, $conf['fperm']);
+      }else{
+        nice_die("$file is not writable. Check your permissions settings!");
+      }
+    }
+  }
+}
+
+/**
+ * Returns absolute path
+ *
+ * This tries the given path first, then checks in DOKU_INC.
+ * Check for accessability on directories as well.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function init_path($path){
+  // check existance
+  $p = realpath($path);
+  if(!@file_exists($p)){
+    $p = realpath(DOKU_INC.$path);
+    if(!@file_exists($p)){
+      return '';
+    }
+  }
+
+  // check writability
+  if(!@is_writable($p)){
+    return '';
+  }
+
+  // check accessability (execute bit) for directories
+  if(@is_dir($p) && !@file_exists("$p/.")){
+    return '';
+  }
+
+  return $p;
+}
+
+/**
+ * Sets the internal config values fperm and dperm which, when set,
+ * will be used to change the permission of a newly created dir or
+ * file with chmod. Considers the influence of the system's umask
+ * setting the values only if needed.
+ */
+function init_creationmodes(){
+  global $conf;
+
+  // Legacy support for old umask/dmask scheme
+  unset($conf['dmask']);
+  unset($conf['fmask']);
+  unset($conf['umask']);
+  unset($conf['fperm']);
+  unset($conf['dperm']);
+
+  // get system umask, fallback to 0 if none available
+  $umask = @umask();
+  if(!$umask) $umask = 0000;
+
+  // check what is set automatically by the system on file creation
+  // and set the fperm param if it's not what we want
+  $auto_fmode = 0666 & ~$umask;
+  if($auto_fmode != $conf['fmode']) $conf['fperm'] = $conf['fmode'];
+
+  // check what is set automatically by the system on file creation
+  // and set the dperm param if it's not what we want
+  $auto_dmode = $conf['dmode'] & ~$umask;
+  if($auto_dmode != $conf['dmode']) $conf['dperm'] = $conf['dmode'];
+}
+
+/**
+ * remove magic quotes recursivly
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function remove_magic_quotes(&$array) {
+  foreach (array_keys($array) as $key) {
+    if (is_array($array[$key])) {
+      remove_magic_quotes($array[$key]);
+    }else {
+      $array[$key] = stripslashes($array[$key]);
+    }
+  }
+}
+
+/**
+ * Returns the full absolute URL to the directory where
+ * DokuWiki is installed in (includes a trailing slash)
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function getBaseURL($abs=false){
+  global $conf;
+  //if canonical url enabled always return absolute
+  if($conf['canonical']) $abs = true;
+
+  if($conf['basedir']){
+    $dir = $conf['basedir'].'/';
+  }elseif(substr($_SERVER['SCRIPT_NAME'],-4) == '.php'){
+    $dir = dirname($_SERVER['SCRIPT_NAME']).'/';
+  }elseif(substr($_SERVER['PHP_SELF'],-4) == '.php'){
+    $dir = dirname($_SERVER['PHP_SELF']).'/';
+  }elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
+    $dir = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
+                         $_SERVER['SCRIPT_FILENAME']);
+    $dir = dirname('/'.$dir).'/';
+  }else{
+    $dir = './'; //probably wrong
+  }
+
+  $dir = str_replace('\\','/',$dir); #bugfix for weird WIN behaviour
+  $dir = preg_replace('#//+#','/',$dir);
+
+  //handle script in lib/exe dir
+  $dir = preg_replace('!lib/exe/$!','',$dir);
+
+  //handle script in lib/plugins dir
+  $dir = preg_replace('!lib/plugins/.*$!','',$dir);
+
+  //finish here for relative URLs
+  if(!$abs) return $dir;
+
+  //use config option if available
+  if($conf['baseurl']) return $conf['baseurl'].$dir;
+
+  //split hostheader into host and port
+  list($host,$port) = explode(':',$_SERVER['HTTP_HOST']);
+  if(!$port)  $port = $_SERVER['SERVER_PORT'];
+  if(!$port)  $port = 80;
+
+  // see if HTTPS is enabled - apache leaves this empty when not available,
+  // IIS sets it to 'off', 'false' and 'disabled' are just guessing
+  if (preg_match('/^(|off|false|disabled)$/i',$_SERVER['HTTPS'])){
+    $proto = 'http://';
+    if ($port == '80') {
+      $port='';
+    }
+  }else{
+    $proto = 'https://';
+    if ($port == '443') {
+      $port='';
+    }
+  }
+
+  if($port) $port = ':'.$port;
+
+  return $proto.$host.$port.$dir;
+}
+
+/**
+ * Append a PHP extension to a given file and adds an exit call
+ *
+ * This is used to migrate some old configfiles. An added PHP extension
+ * ensures the contents are not shown to webusers even if .htaccess files
+ * do not work
+ *
+ * @author Jan Decaluwe <jan@jandecaluwe.com>
+ */
+function scriptify($file) {
+  // checks
+  if (!is_readable($file)) {
+    return;
+  }
+  $fn = $file.'.php';
+  if (@file_exists($fn)) {
+    return;
+  }
+  $fh = fopen($fn, 'w');
+  if (!$fh) {
+    nice_die($fn.' is not writable. Check your permission settings!');
+  }
+  // write php exit hack first
+  fwrite($fh, "# $fn\n");
+  fwrite($fh, '# <?php exit()?>'."\n");
+  fwrite($fh, "# Don't modify the lines above\n");
+  fwrite($fh, "#\n");
+  // copy existing lines
+  $lines = file($file);
+  foreach ($lines as $line){
+    fwrite($fh, $line);
+  }
+  fclose($fh);
+  //try to rename the old file
+  io_rename($file,"$file.old");
+}
+
+/**
+ * print a nice message even if no styles are loaded yet.
+ */
+function nice_die($msg){
+  echo<<<EOT
+  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+   "http://www.w3.org/TR/html4/loose.dtd">
+  <html>
+    <head><title>DokuWiki Setup Error</title></head>
+    <body style="font-family: Arial, sans-serif">
+      <div style="width:60%; margin: auto; background-color: #fcc;
+                  border: 1px solid #faa; padding: 0.5em 1em;">
+      <h1 style="font-size: 120%">DokuWiki Setup Error</h1>
+      <p>$msg</p>
+      </div>
+    </body>
+  </html>
+EOT;
+  exit;
+}
+
+
+//Setup VIM: ex: et ts=2 enc=utf-8 :