function buffer_output($compress = true)
{
// FIXME: disables sessions (some byte before all headers_sent())
/*if (defined('USECACHE') and !USECACHE) {
$this->_is_buffering_output = false;
return;
}*/
if (defined('COMPRESS_OUTPUT')) {
if (!COMPRESS_OUTPUT) {
$compress = false;
}
} elseif (!check_php_version(4, 2, 3)) {
$compress = false;
} elseif (isCGI()) {
// necessary?
$compress = false;
}
if ($this->getArg('start_debug')) {
$compress = false;
}
// Should we compress even when apache_note is not available?
// sf.net bug #933183 and http://bugs.php.net/17557
// This effectively eliminates CGI, but all other servers also. hmm.
if ($compress and (!function_exists('ob_gzhandler') or !function_exists('apache_note'))) {
$compress = false;
}
// "output handler 'ob_gzhandler' cannot be used twice"
// http://www.php.net/ob_gzhandler
if ($compress and ini_get("zlib.output_compression")) {
$compress = false;
}
// New: we check for the client Accept-Encoding: "gzip" presence also
// This should eliminate a lot or reported problems.
if ($compress and (!$this->get("HTTP_ACCEPT_ENCODING") or !strstr($this->get("HTTP_ACCEPT_ENCODING"), "gzip"))) {
$compress = false;
}
// Most RSS clients are NOT(!) application/xml gzip compatible yet.
// Even if they are sending the accept-encoding gzip header!
// wget is, Mozilla, and MSIE no.
// Of the RSS readers only MagpieRSS 0.5.2 is. http://www.rssgov.com/rssparsers.html
// See also http://phpwiki.sourceforge.net/phpwiki/KnownBugs
if ($compress and $this->getArg('format') and strstr($this->getArg('format'), 'rss')) {
$compress = false;
}
if ($compress) {
ob_start('phpwiki_gzhandler');
// TODO: dont send a length or get the gzip'ed data length.
$this->_is_compressing_output = true;
header("Content-Encoding: gzip");
/*
* Attempt to prevent Apache from doing the dreaded double-gzip.
*
* It would be better if we could detect when apache was going
* to zip for us, and then let it ... but I have yet to figure
* out how to do that.
*/
if (function_exists('apache_note')) {
@apache_note('no-gzip', 1);
}
} else {
// Now we alway buffer output.
// This is so we can set HTTP headers (e.g. for redirect)
// at any point.
// FIXME: change the name of this method.
ob_start();
$this->_is_compressing_output = false;
}
$this->_is_buffering_output = true;
$this->_ob_get_length = 0;
}
/**
* Constructor
*
* @param object $request The global WikiRequest object.
*/
function GroupLdap()
{
//$this->request = &$GLOBALS['request'];
$this->username = $this->_getUserName();
$this->membership = array();
if (!defined("LDAP_AUTH_HOST")) {
trigger_error(sprintf(_("%s not defined"), "LDAP_AUTH_HOST"), E_USER_WARNING);
return false;
}
// We should ignore multithreaded environments, not generally windows.
// CGI does work.
if (!function_exists('ldap_connect') and (!isWindows() or isCGI())) {
// on MacOSX >= 4.3 you'll need PHP_SHLIB_SUFFIX instead.
dl("ldap" . defined('PHP_SHLIB_SUFFIX') ? PHP_SHLIB_SUFFIX : DLL_EXT);
if (!function_exists('ldap_connect')) {
trigger_error(_("No LDAP in this PHP version"), E_USER_WARNING);
return false;
}
}
if (!defined("LDAP_BASE_DN")) {
define("LDAP_BASE_DN", '');
}
$this->base_dn = LDAP_BASE_DN;
// if no users ou (organizational unit) is defined,
// then take out the ou= from the base_dn (if exists) and append a default
// from users and group
if (!LDAP_OU_USERS) {
if (strstr(LDAP_BASE_DN, "ou=")) {
$this->base_dn = preg_replace("/(ou=\\w+,)?()/", "\$2", LDAP_BASE_DN);
}
}
if (!isset($this->user) or !isa($this->user, '_LDAPPassUser')) {
$this->_user = new _LDAPPassUser('LdapGroupTest');
} else {
$this->_user =& $this->user;
}
}
/**
* Define constants which are client or request specific and should not be dumped statically.
* Such as the language, and the virtual and server paths, which might be overridden
* by startup scripts for wiki farms.
*/
function fixup_dynamic_configs($file)
{
global $WikiNameRegexp;
global $HTTP_SERVER_VARS, $DBParams, $LANG;
if (defined('INCLUDE_PATH') and INCLUDE_PATH) {
@ini_set('include_path', INCLUDE_PATH);
}
if (defined('SESSION_SAVE_PATH') and SESSION_SAVE_PATH) {
@ini_set('session.save_path', SESSION_SAVE_PATH);
}
if (!defined('DEFAULT_LANGUAGE')) {
// not needed anymore
define('DEFAULT_LANGUAGE', '');
}
// detect from client
update_locale(isset($LANG) ? $LANG : DEFAULT_LANGUAGE);
if (empty($LANG)) {
if (!defined("DEFAULT_LANGUAGE") or !DEFAULT_LANGUAGE) {
// TODO: defer this to WikiRequest::initializeLang()
$LANG = guessing_lang();
guessing_setlocale(LC_ALL, $LANG);
} else {
$LANG = DEFAULT_LANGUAGE;
}
}
// Set up (possibly fake) gettext()
// Todo: this could be moved to fixup_static_configs()
// Bug #1381464 with php-5.1.1
if (!function_exists('bindtextdomain') and !function_exists('gettext') and !function_exists('_')) {
$locale = array();
function gettext($text)
{
global $locale;
if (!empty($locale[$text])) {
return $locale[$text];
}
return $text;
}
function _($text)
{
return gettext($text);
}
} else {
// Working around really weird gettext problems: (4.3.2, 4.3.6 win)
// bindtextdomain() returns the current domain path.
// 1. If the script is not index.php but something like "de", on a different path
// then bindtextdomain() fails, but after chdir to the correct path it will work okay.
// 2. But the weird error "Undefined variable: bindtextdomain" is generated then.
$bindtextdomain_path = FindFile("locale", false, true);
$chback = 0;
if (isWindows()) {
$bindtextdomain_path = str_replace("/", "\\", $bindtextdomain_path);
}
$bindtextdomain_real = @bindtextdomain("phpwiki", $bindtextdomain_path);
if (realpath($bindtextdomain_real) != realpath($bindtextdomain_path)) {
// this will happen with virtual_paths. chdir and try again.
chdir($bindtextdomain_path);
$chback = 1;
$bindtextdomain_real = @bindtextdomain("phpwiki", $bindtextdomain_path);
}
// tell gettext not to use unicode. PHP >= 4.2.0. Thanks to Kai Krakow.
if (defined('CHARSET') and function_exists('bind_textdomain_codeset')) {
@bind_textdomain_codeset("phpwiki", CHARSET);
}
textdomain("phpwiki");
if ($chback) {
// change back
chdir($bindtextdomain_real . (isWindows() ? "\\.." : "/.."));
}
}
// language dependent updates:
$WikiNameRegexp = pcre_fix_posix_classes($WikiNameRegexp);
//if ($KeywordLinkRegexp) $KeywordLinkRegexp = pcre_fix_posix_classes($KeywordLinkRegexp);
if (!defined('CATEGORY_GROUP_PAGE')) {
define('CATEGORY_GROUP_PAGE', _("CategoryGroup"));
}
if (!defined('WIKI_NAME')) {
define('WIKI_NAME', _("An unnamed PhpWiki"));
}
if (!defined('HOME_PAGE')) {
define('HOME_PAGE', _("HomePage"));
}
//////////////////////////////////////////////////////////////////
// Autodetect URL settings:
//
foreach (array('SERVER_NAME', 'SERVER_PORT') as $var) {
//FIXME: for CGI without _SERVER
if (!defined($var) and !empty($HTTP_SERVER_VARS[$var])) {
define($var, $HTTP_SERVER_VARS[$var]);
}
}
if (!defined('SERVER_NAME')) {
define('SERVER_NAME', '127.0.0.1');
}
if (!defined('SERVER_PORT')) {
define('SERVER_PORT', 80);
}
if (!defined('SERVER_PROTOCOL')) {
if (empty($HTTP_SERVER_VARS['HTTPS']) || $HTTP_SERVER_VARS['HTTPS'] == 'off') {
define('SERVER_PROTOCOL', 'http');
} else {
define('SERVER_PROTOCOL', 'https');
}
}
if (!defined('SCRIPT_NAME')) {
define('SCRIPT_NAME', deduce_script_name());
}
if (!defined('USE_PATH_INFO')) {
if (isCGI()) {
define('USE_PATH_INFO', false);
} else {
/*
* If SCRIPT_NAME does not look like php source file,
* or user cgi we assume that php is getting run by an
* action handler in /cgi-bin. In this case,
* I think there is no way to get Apache to pass
* useful PATH_INFO to the php script (PATH_INFO
* is used to the the php interpreter where the
* php script is...)
*/
switch (php_sapi_name()) {
case 'apache':
case 'apache2handler':
define('USE_PATH_INFO', true);
break;
case 'cgi':
case 'apache2filter':
define('USE_PATH_INFO', false);
break;
default:
define('USE_PATH_INFO', ereg('\\.(php3?|cgi)$', SCRIPT_NAME));
break;
}
}
}
if (SERVER_PORT && SERVER_PORT != (SERVER_PROTOCOL == 'https' ? 443 : 80)) {
define('SERVER_URL', SERVER_PROTOCOL . '://' . SERVER_NAME . ':' . SERVER_PORT);
} else {
define('SERVER_URL', SERVER_PROTOCOL . '://' . SERVER_NAME);
}
if (!defined('VIRTUAL_PATH')) {
// We'd like to auto-detect when the cases where apaches
// 'Action' directive (or similar means) is used to
// redirect page requests to a cgi-handler.
//
// In cases like this, requests for e.g. /wiki/HomePage
// get redirected to a cgi-script called, say,
// /path/to/wiki/index.php. The script gets all
// of /wiki/HomePage as it's PATH_INFO.
//
// The problem is:
// How to detect when this has happened reliably?
// How to pick out the "virtual path" (in this case '/wiki')?
//
// (Another time an redirect might occur is to a DirectoryIndex
// -- the requested URI is '/wikidir/', the request gets
// passed to '/wikidir/index.php'. In this case, the
// proper VIRTUAL_PATH is '/wikidir/index.php', since the
// pages will appear at e.g. '/wikidir/index.php/HomePage'.
//
$REDIRECT_URL =& $HTTP_SERVER_VARS['REDIRECT_URL'];
if (USE_PATH_INFO and isset($REDIRECT_URL) and !IsProbablyRedirectToIndex()) {
// FIXME: This is a hack, and won't work if the requested
// pagename has a slash in it.
$temp = strtr(dirname($REDIRECT_URL . 'x'), "\\", '/');
if ($temp == '/' || $temp == '\\') {
$temp = '';
}
define('VIRTUAL_PATH', $temp);
} else {
define('VIRTUAL_PATH', SCRIPT_NAME);
}
}
if (!defined('PATH_INFO_PREFIX')) {
if (VIRTUAL_PATH != SCRIPT_NAME) {
// Apache action handlers are used.
define('PATH_INFO_PREFIX', VIRTUAL_PATH . '/');
} else {
define('PATH_INFO_PREFIX', '/');
}
}
define('PHPWIKI_BASE_URL', SERVER_URL . (USE_PATH_INFO ? VIRTUAL_PATH . '/' : SCRIPT_NAME));
// Detect PrettyWiki setup (not loading index.php directly)
// $SCRIPT_FILENAME should be the same as __FILE__ in index.php
if (!isset($SCRIPT_FILENAME)) {
$SCRIPT_FILENAME = @$HTTP_SERVER_VARS['SCRIPT_FILENAME'];
}
if (!isset($SCRIPT_FILENAME)) {
$SCRIPT_FILENAME = @$HTTP_ENV_VARS['SCRIPT_FILENAME'];
}
if (!isset($SCRIPT_FILENAME)) {
$SCRIPT_FILENAME = dirname(__FILE__ . '/../') . '/index.php';
}
if (isWindows()) {
$SCRIPT_FILENAME = str_replace('\\\\', '\\', strtr($SCRIPT_FILENAME, '/', '\\'));
}
define('SCRIPT_FILENAME', $SCRIPT_FILENAME);
// Get remote host name, if apache hasn't done it for us
if (empty($HTTP_SERVER_VARS['REMOTE_HOST']) and !empty($HTTP_SERVER_VARS['REMOTE_ADDR']) and ENABLE_REVERSE_DNS) {
$HTTP_SERVER_VARS['REMOTE_HOST'] = gethostbyaddr($HTTP_SERVER_VARS['REMOTE_ADDR']);
}
}