vhad/wordpress-develop
1
0
Fork 0
mirror of https://github.com/gosticks/wordpress-develop.git synced 2026-08-11 20:30:23 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Support IIS 7.0 URL Rewrite Module. Props ruslany. Hat tips to peaceablewhale, hakre, Denis-de-Bernardy, sivel. fixes #8974

Browse Source 
git-svn-id: https://develop.svn.wordpress.org/trunk@11350 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren
2009-05-16 02:04:36 +00:00
parent 8644a0c9d7
commit 5d6ca1f0dc
4 changed files with 322 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files
wp-admin/includes/misc.php
+240 -1
View File
@@ -135,6 +135,34 @@ function save_mod_rewrite_rules() {
return false;
}
/**
* Updates the IIS web.config file with the current rules if it is writable.
* If the permalinks do not require rewrite rules then the rules are deleted from the web.config file.
*
* @since 2.8.0
*
* @return bool True if web.config was updated successfully
*/
function iis7_save_url_rewrite_rules(){
global $wp_rewrite;
$home_path = get_home_path();
$web_config_file = $home_path . 'web.config';
// Using win_is_writable() instead of is_writable() because of a bug in Windows PHP
if ( ( ! file_exists($web_config_file) && win_is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks() ) || win_is_writable($web_config_file) ) {
if ( iis7_supports_permalinks() ) {
$rule = $wp_rewrite->iis7_url_rewrite_rules();
if ( ! empty($rule) ) {
return iis7_add_rewrite_rule($web_config_file, $rule);
} else {
return iis7_delete_rewrite_rule($web_config_file);
}
}
}
return false;
}
/**
* {@internal Missing Short Description}}
*
@@ -370,4 +398,215 @@ function wp_menu_unfold() {
exit;
}
}
?>
/**
* Check if IIS 7 supports pretty permalinks
*
* @since 2.8.0
*
* @return bool
*/
function iis7_supports_permalinks() {
global $is_iis7;
$supports_permalinks = false;
if ( $is_iis7 ) {
/* First we check if the DOMDocument class exists. If it does not exist,
* which is the case for PHP 4.X, then we cannot easily update the xml configuration file,
* hence we just bail out and tell user that pretty permalinks cannot be used.
* This is not a big issue because PHP 4.X is going to be depricated and for IIS it
* is recommended to use PHP 5.X NTS.
* Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When
* URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'.
* Lastly we make sure that PHP is running via FastCGI. This is important because if it runs
* via ISAPI then pretty permalinks will not work.
*/
$supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' );
}
return apply_filters('iis7_supports_permalinks', $supports_permalinks);
}
/**
* Check if rewrite rule for WordPress already exists in the IIS 7 configuration file
*
* @since 2.8.0
*
* @return bool
* @param string $filename The file path to the configuration file
*/
function iis7_rewrite_rule_exists($filename) {
if ( ! file_exists($filename) )
return false;
if ( ! class_exists('DOMDocument') )
return false;
$doc = new DOMDocument();
if ( $doc->load($filename) === false )
return false;
$xpath = new DOMXPath($doc);
$rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[@name=\'wordpress\']');
if ( $rules->length == 0 )
return false;
else
return true;
}
/**
* Delete WordPress rewrite rule from web.config file if it exists there
*
* @since 2.8.0
*
* @param string $filename Name of the configuration file
* @return bool
*/
function iis7_delete_rewrite_rule($filename) {
// If configuration file does not exist then rules also do not exist so there is nothing to delete
if ( ! file_exists($filename) )
return true;
if ( ! class_exists('DOMDocument') )
return false;
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
if ( $doc -> load($filename) === false )
return false;
$xpath = new DOMXPath($doc);
$rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[@name=\'wordpress\']');
if ( $rules->length > 0 ) {
$child = $rules->item(0);
$parent = $child->parentNode;
$parent->removeChild($child);
$doc->formatOutput = true;
saveDomDocument($doc, $filename);
}
return true;
}
/**
* Add WordPress rewrite rule to the IIS 7 configuration file.
*
* @since 2.8.0
*
* @param string $filename The file path to the configuration file
* @param string $rewrite_rule The XML fragment with URL Rewrite rule
* @return bool
*/
function iis7_add_rewrite_rule($filename, $rewrite_rule) {
if ( ! class_exists('DOMDocument') )
return false;
// If configuration file does not exist then we create one.
if ( ! file_exists($filename) ) {
$fp = fopen( $filename, 'w');
fwrite($fp, '<configuration/>');
fclose($fp);
}
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
if ( $doc->load($filename) === false )
return false;
$xpath = new DOMXPath($doc);
// First check if the rule already exists as in that case there is no need to re-add it
$wordpress_rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[@name=\'wordpress\']');
if ( $wordpress_rules->length > 0 )
return true;
// Check the XPath to the rewrite rule and create XML nodes if they do not exist
$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite/rules');
if ( $xmlnodes->length > 0 ) {
$rules_node = $xmlnodes->item(0);
} else {
$rules_node = $doc->createElement('rules');
$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite');
if ( $xmlnodes->length > 0 ) {
$rewrite_node = $xmlnodes->item(0);
$rewrite_node->appendChild($rules_node);
} else {
$rewrite_node = $doc->createElement('rewrite');
$rewrite_node->appendChild($rules_node);
$xmlnodes = $xpath->query('/configuration/system.webServer');
if ( $xmlnodes->length > 0 ) {
$system_webServer_node = $xmlnodes->item(0);
$system_webServer_node->appendChild($rewrite_node);
} else {
$system_webServer_node = $doc->createElement('system.webServer');
$system_webServer_node->appendChild($rewrite_node);
$xmlnodes = $xpath->query('/configuration');
if ( $xmlnodes->length > 0 ) {
$config_node = $xmlnodes->item(0);
$config_node->appendChild($system_webServer_node);
} else {
$config_node = $doc->createElement('configuration');
$doc->appendChild($config_node);
$config_node->appendChild($system_webServer_node);
}
}
}
}
$rule_fragment = $doc->createDocumentFragment();
$rule_fragment->appendXML($rewrite_rule);
$rules_node->appendChild($rule_fragment);
$doc->formatOutput = true;
saveDomDocument($doc, $filename);
return true;
}
/**
* Saves the XML document into a file
*
* @since 2.8.0
*
* @param DOMDocument $doc
* @param string $filename
*/
function saveDomDocument($doc, $filename) {
$config = $doc->saveXML();
$config = preg_replace("/([^\r])\n/", "$1\r\n", $config);
$fp = fopen($filename, 'w');
fwrite($fp, $config);
fclose($fp);
}
/**
* Workaround for Windows bug in is_writable() function
*
* @since 2.8.0
*
* @param object $path
* @return bool
*/
function win_is_writable($path) {
/* will work in despite of Windows ACLs bug
* NOTE: use a trailing slash for folders!!!
* see http://bugs.php.net/bug.php?id=27609
* see http://bugs.php.net/bug.php?id=30931
*/
if ( $path{strlen($path)-1} == '/' ) // recursively return a temporary file path
return win_is_writable($path . uniqid(mt_rand()) . '.tmp');
else if ( is_dir($path) )
return win_is_writable($path . '/' . uniqid(mt_rand()) . '.tmp');
// check tmp file for read/write capabilities
$rm = file_exists($path);
$f = @fopen($path, 'a');
if ($f===false)
return false;
fclose($f);
if ( ! $rm )
unlink($path);
return true;
}
?>