/wp-admin/options-permalink.php

<?php

/**

 * Permalink settings administration panel.

 *

 * @package WordPress

 * @subpackage Administration

 */



/** WordPress Administration Bootstrap */

require_once('./admin.php');



if ( ! current_user_can( 'manage_options' ) )

	wp_die( __( 'You do not have sufficient permissions to manage options for this site.' ) );



$title = __('Permalink Settings');

$parent_file = 'options-general.php';



add_contextual_help($current_screen,

	'<p>' . __('This screen provides some common options for your default permalinks URL structure.') . '</p>' .

	'<p>' . __('If you pick an option other than Default, your general URL path with structure tags, terms surrounded by <code>%</code>, will also appear in the custom structure field and your path can be further modified there.') . '</p>' .

	'<p>' . __('When you assign multiple categories or tags to a post, only one can show up in the permalink: the lowest numbered category. This applies if your custom structure includes <code>%category%</code> or <code>%tag%</code>.') . '</p>' .

	'<p>' . __('Note that permalinks beginning with the category, tag, author or postname structure tags require more advanced server resources. Double-check your hosting details to make sure those are in place or start your permalinks with other structure tags.') . '</p>' .

	'<p>' . __('The Optional fields let you customize the &#8220;category&#8221; and &#8220;tag&#8221; base names that will appear in archive URLs. For example, the page listing all posts in the &#8220;Uncategorized&#8221; category could be <code>/topics/uncategorized</code> instead of <code>/category/uncategorized</code>.') . '</p>' .

	'<p>' . __('You must click the Save Changes button at the bottom of the screen for new settings to take effect.') . '</p>' .

	'<p><strong>' . __('For more information:') . '</strong></p>' .

	'<p>' . __('<a href="http://codex.wordpress.org/Settings_Permalinks_SubPanel" target="_blank">Permalinks Settings Documentation</a>') . '</p>' .

	'<p>' . __('<a href="http://codex.wordpress.org/Using_Permalinks" target="_blank">Using Permalinks Documentation</a>') . '</p>' .

	'<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'

);



/**

 * Display JavaScript on the page.

 *

 * @package WordPress

 * @subpackage Permalink_Settings_Panel

 */

function add_js() {

?>

<script type="text/javascript">

//<![CDATA[

function GetElementsWithClassName(elementName, className) {

var allElements = document.getElementsByTagName(elementName);

var elemColl = new Array();

for (i = 0; i < allElements.length; i++) {

if (allElements[i].className == className) {

elemColl[elemColl.length] = allElements[i];

}

}

return elemColl;

}



function upit() {

var inputColl = GetElementsWithClassName('input', 'tog');

var structure = document.getElementById('permalink_structure');

var inputs = '';

for (i = 0; i < inputColl.length; i++) {

if ( inputColl[i].checked && inputColl[i].value != '') {

inputs += inputColl[i].value + ' ';

}

}

inputs = inputs.substr(0,inputs.length - 1);

if ( 'custom' != inputs )

structure.value = inputs;

}



function blurry() {

if (!document.getElementById) return;



var structure = document.getElementById('permalink_structure');

structure.onfocus = function () { document.getElementById('custom_selection').checked = 'checked'; }



var aInputs = document.getElementsByTagName('input');



for (var i = 0; i < aInputs.length; i++) {

aInputs[i].onclick = aInputs[i].onkeyup = upit;

}

}



window.onload = blurry;

//]]>

</script>

<?php

}

add_filter('admin_head', 'add_js');



include('./admin-header.php');



$home_path = get_home_path();

$iis7_permalinks = iis7_supports_permalinks();



$prefix = $blog_prefix = '';

if ( ! got_mod_rewrite() && ! $iis7_permalinks )

	$prefix = '/index.php';

if ( is_multisite() && !is_subdomain_install() && is_main_site() )

	$blog_prefix = '/blog';



if ( isset($_POST['permalink_structure']) || isset($_POST['category_base']) ) {

	check_admin_referer('update-permalink');



	if ( isset( $_POST['permalink_structure'] ) ) {

		if ( isset( $_POST['selection'] ) && 'custom' != $_POST['selection'] )

			$permalink_structure = $_POST['selection'];

		else

			$permalink_structure = $_POST['permalink_structure'];



		if ( ! empty( $permalink_structure ) ) {

			$permalink_structure = preg_replace( '#/+#', '/', '/' . str_replace( '#', '', $permalink_structure ) );

			if ( $prefix && $blog_prefix )

				$permalink_structure = $prefix . preg_replace( '#^/?index\.php#', '', $permalink_structure );

			else

				$permalink_structure = $blog_prefix . $permalink_structure;

		}

		$wp_rewrite->set_permalink_structure( $permalink_structure );

	}



	if ( isset( $_POST['category_base'] ) ) {

		$category_base = $_POST['category_base'];

		if ( ! empty( $category_base ) )

			$category_base = $blog_prefix . preg_replace('#/+#', '/', '/' . str_replace( '#', '', $category_base ) );

		$wp_rewrite->set_category_base( $category_base );

	}



	if ( isset( $_POST['tag_base'] ) ) {

		$tag_base = $_POST['tag_base'];

		if ( ! empty( $tag_base ) )

			$tag_base = $blog_prefix . preg_replace('#/+#', '/', '/' . str_replace( '#', '', $tag_base ) );

		$wp_rewrite->set_tag_base( $tag_base );

	}

}



$permalink_structure = get_option('permalink_structure');

$category_base = get_option('category_base');

$tag_base = get_option( 'tag_base' );



if ( $iis7_permalinks ) {

	if ( ( ! file_exists($home_path . 'web.config') && win_is_writable($home_path) ) || win_is_writable($home_path . 'web.config') )

		$writable = true;

	else

		$writable = false;

} else {

	if ( ( ! file_exists($home_path . '.htaccess') && is_writable($home_path) ) || is_writable($home_path . '.htaccess') )

		$writable = true;

	else

		$writable = false;

}



if ( $wp_rewrite->using_index_permalinks() )

	$usingpi = true;

else

	$usingpi = false;



$wp_rewrite->flush_rules();





if (isset($_POST['submit'])) : ?>

<div id="message" class="updated"><p><?php

if ( ! is_multisite() ) {

	if ( $iis7_permalinks ) {

		if ( $permalink_structure && ! $usingpi && ! $writable )

			_e('You should update your web.config now');

		else if ( $permalink_structure && ! $usingpi && $writable )

			_e('Permalink structure updated. Remove write access on web.config file now!');

		else

			_e('Permalink structure updated');

	} else {

		if ( $permalink_structure && ! $usingpi && ! $writable )

			_e('You should update your .htaccess now.');

		else

			_e('Permalink structure updated.');

	}

} else {

	_e('Permalink structure updated.');

}

?>

</p></div>

<?php endif; ?>



<div class="wrap">

<?php screen_icon(); ?>

<h2><?php echo esc_html( $title ); ?></h2>



<form name="form" action="options-permalink.php" method="post">

<?php wp_nonce_field('update-permalink') ?>



  <p><?php _e('By default WordPress uses web <abbr title="Universal Resource Locator">URL</abbr>s which have question marks and lots of numbers in them, however WordPress offers you the ability to create a custom URL structure for your permalinks and archives. This can improve the aesthetics, usability, and forward-compatibility of your links. A <a href="http://codex.wordpress.org/Using_Permalinks">number of tags are available</a>, and here are some examples to get you started.'); ?></p>



<?php

if ( is_multisite() && !is_subdomain_install() && is_main_site() ) {

	$permalink_structure = preg_replace( '|^/?blog|', '', $permalink_structure );

	$category_base = preg_replace( '|^/?blog|', '', $category_base );

	$tag_base = preg_replace( '|^/?blog|', '', $tag_base );

}



$structures = array(

	'',

	$prefix . '/%year%/%monthnum%/%day%/%postname%/',

	$prefix . '/%year%/%monthnum%/%postname%/',

	$prefix . '/archives/%post_id%'

	);

?>

<h3><?php _e('Common settings'); ?></h3>

<table class="form-table">

	<tr>

		<th><label><input name="selection" type="radio" value="" class="tog" <?php checked('', $permalink_structure); ?> /> <?php _e('Default'); ?></label></th>

		<td><code><?php echo get_option('home'); ?>/?p=123</code></td>

	</tr>

	<tr>

		<th><label><input name="selection" type="radio" value="<?php echo esc_attr($structures[1]); ?>" class="tog" <?php checked($structures[1], $permalink_structure); ?> /> <?php _e('Day and name'); ?></label></th>

		<td><code><?php echo get_option('home') . $blog_prefix . $prefix . '/' . date('Y') . '/' . date('m') . '/' . date('d') . '/sample-post/'; ?></code></td>

	</tr>

	<tr>

		<th><label><input name="selection" type="radio" value="<?php echo esc_attr($structures[2]); ?>" class="tog" <?php checked($structures[2], $permalink_structure); ?> /> <?php _e('Month and name'); ?></label></th>

		<td><code><?php echo get_option('home') . $blog_prefix . $prefix . '/' . date('Y') . '/' . date('m') . '/sample-post/'; ?></code></td>

	</tr>

	<tr>

		<th><label><input name="selection" type="radio" value="<?php echo esc_attr($structures[3]); ?>" class="tog" <?php checked($structures[3], $permalink_structure); ?> /> <?php _e('Numeric'); ?></label></th>

		<td><code><?php echo get_option('home') . $blog_prefix . $prefix; ?>/archives/123</code></td>

	</tr>

	<tr>

		<th>

			<label><input name="selection" id="custom_selection" type="radio" value="custom" class="tog" <?php checked( !in_array($permalink_structure, $structures) ); ?> />

			<?php _e('Custom Structure'); ?>

			</label>

		</th>

		<td>

			<?php echo $blog_prefix; ?>

			<input name="permalink_structure" id="permalink_structure" type="text" value="<?php echo esc_attr($permalink_structure); ?>" class="regular-text code" />

		</td>

	</tr>

</table>



<h3><?php _e('Optional'); ?></h3>

<?php if ( $is_apache || $iis7_permalinks ) : ?>

	<p><?php _e('If you like, you may enter custom structures for your category and tag <abbr title="Universal Resource Locator">URL</abbr>s here. For example, using <kbd>topics</kbd> as your category base would make your category links like <code>http://example.org/topics/uncategorized/</code>. If you leave these blank the defaults will be used.') ?></p>

<?php else : ?>

	<p><?php _e('If you like, you may enter custom structures for your category and tag <abbr title="Universal Resource Locator">URL</abbr>s here. For example, using <code>topics</code> as your category base would make your category links like <code>http://example.org/index.php/topics/uncategorized/</code>. If you leave these blank the defaults will be used.') ?></p>

<?php endif; ?>



<table class="form-table">

	<tr>

		<th><label for="category_base"><?php /* translators: prefix for category permalinks */ _e('Category base'); ?></label></th>

		<td><?php echo $blog_prefix; ?> <input name="category_base" id="category_base" type="text" value="<?php echo esc_attr( $category_base ); ?>" class="regular-text code" /></td>

	</tr>

	<tr>

		<th><label for="tag_base"><?php _e('Tag base'); ?></label></th>

		<td><?php echo $blog_prefix; ?> <input name="tag_base" id="tag_base" type="text" value="<?php echo esc_attr($tag_base); ?>" class="regular-text code" /></td>

	</tr>

	<?php do_settings_fields('permalink', 'optional'); ?>

</table>



<?php do_settings_sections('permalink'); ?>



<p class="submit">

	<input type="submit" name="submit" class="button-primary" value="<?php esc_attr_e('Save Changes') ?>" />

</p>

  </form>

<?php if ( !is_multisite() ) { ?>

<?php if ( $iis7_permalinks ) :

	if ( isset($_POST['submit']) && $permalink_structure && ! $usingpi && ! $writable ) :

		if ( file_exists($home_path . 'web.config') ) : ?>

<p><?php _e('If your <code>web.config</code> file were <a href="http://codex.wordpress.org/Changing_File_Permissions">writable</a>, we could do this automatically, but it isn&#8217;t so this is the url rewrite rule you should have in your <code>web.config</code> file. Click in the field and press <kbd>CTRL + a</kbd> to select all. Then insert this rule inside of the <code>/&lt;configuration&gt;/&lt;system.webServer&gt;/&lt;rewrite&gt;/&lt;rules&gt;</code> element in <code>web.config</code> file.') ?></p>

<form action="options-permalink.php" method="post">

<?php wp_nonce_field('update-permalink') ?>

	<p><textarea rows="9" class="large-text readonly" name="rules" id="rules" readonly="readonly"><?php echo esc_html($wp_rewrite->iis7_url_rewrite_rules()); ?></textarea></p>

</form>

<p><?php _e('If you temporarily make your <code>web.config</code> file writable for us to generate rewrite rules automatically, do not forget to revert the permissions after rule has been saved.')  ?></p>

		<?php else : ?>

<p><?php _e('If the root directory of your site were <a href="http://codex.wordpress.org/Changing_File_Permissions">writable</a>, we could do this automatically, but it isn&#8217;t so this is the url rewrite rule you should have in your <code>web.config</code> file. Create a new file, called <code>web.config</code> in the root directory of your site. Click in the field and press <kbd>CTRL + a</kbd> to select all. Then insert this code into the <code>web.config</code> file.') ?></p>

<form action="options-permalink.php" method="post">

<?php wp_nonce_field('update-permalink') ?>

	<p><textarea rows="18" class="large-text readonly" name="rules" id="rules" readonly="readonly"><?php echo esc_html($wp_rewrite->iis7_url_rewrite_rules(true)); ?></textarea></p>

</form>

<p><?php _e('If you temporarily make your site&#8217;s root directory writable for us to generate the <code>web.config</code> file automatically, do not forget to revert the permissions after the file has been created.')  ?></p>

		<?php endif; ?>

	<?php endif; ?>

<?php else :

	if ( $permalink_structure && ! $usingpi && ! $writable ) : ?>

<p><?php _e('If your <code>.htaccess</code> file were <a href="http://codex.wordpress.org/Changing_File_Permissions">writable</a>, we could do this automatically, but it isn&#8217;t so these are the mod_rewrite rules you should have in your <code>.htaccess</code> file. Click in the field and press <kbd>CTRL + a</kbd> to select all.') ?></p>

<form action="options-permalink.php" method="post">

<?php wp_nonce_field('update-permalink') ?>

	<p><textarea rows="6" class="large-text readonly" name="rules" id="rules" readonly="readonly"><?php echo esc_html($wp_rewrite->mod_rewrite_rules()); ?></textarea></p>

</form>

	<?php endif; ?>

<?php endif; ?>

<?php } // multisite ?>



</div>



<?php require('./admin-footer.php'); ?>