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Switch to using empty()/!empty() checks in Canonical. see #7537 

git-svn-id: https://develop.svn.wordpress.org/trunk@9197 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Mark Jaquith 2008-10-16 16:08:00 +00:00
parent 05fc37769c
commit 3b17601874
1 changed files with 19 additions and 19 deletions
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38
wp-includes/canonical.php
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@ -44,7 +44,7 @@ function redirect_canonical($requested_url=null, $do_redirect=true) {
if ( !$requested_url ) {
// build the URL in the address bar
$requested_url = ( isset($_SERVER['HTTPS'] ) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://';
$requested_url = ( !empty($_SERVER['HTTPS'] ) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://';
$requested_url .= $_SERVER['HTTP_HOST'];
$requested_url .= $_SERVER['REQUEST_URI'];
}
@ -77,15 +77,15 @@ function redirect_canonical($requested_url=null, $do_redirect=true) {
$redirect_url = redirect_guess_404_permalink();
} elseif ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) {
// rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101
if ( is_single() && isset($_GET['p']) && ! $redirect_url ) {
if ( is_single() && !empty($_GET['p']) && ! $redirect_url ) {
if ( $redirect_url = get_permalink(get_query_var('p')) )
$redirect['query'] = remove_query_arg('p', $redirect['query']);
} elseif ( is_single() && ! $redirect_url ) {
$redirect_url = get_permalink( url_to_postid( $requested_url ) );
} elseif ( is_page() && isset($_GET['page_id']) && ! $redirect_url ) {
} elseif ( is_page() && !empty($_GET['page_id']) && ! $redirect_url ) {
if ( $redirect_url = get_permalink(get_query_var('page_id')) )
$redirect['query'] = remove_query_arg('page_id', $redirect['query']);
} elseif ( isset($_GET['m']) && ( is_year() || is_month() || is_day() ) ) {
} elseif ( !empty($_GET['m']) && ( is_year() || is_month() || is_day() ) ) {
$m = get_query_var('m');
switch ( strlen($m) ) {
case 4: // Yearly
@ -101,19 +101,19 @@ function redirect_canonical($requested_url=null, $do_redirect=true) {
if ( $redirect_url )
$redirect['query'] = remove_query_arg('m', $redirect['query']);
// now moving on to non ?m=X year/month/day links
} elseif ( is_day() && get_query_var('year') && get_query_var('monthnum') && isset($_GET['day']) ) {
} elseif ( is_day() && get_query_var('year') && get_query_var('monthnum') && !empty($_GET['day']) ) {
if ( $redirect_url = get_day_link(get_query_var('year'), get_query_var('monthnum'), get_query_var('day')) )
$redirect['query'] = remove_query_arg(array('year', 'monthnum', 'day'), $redirect['query']);
} elseif ( is_month() && get_query_var('year') && isset($_GET['monthnum']) ) {
} elseif ( is_month() && get_query_var('year') && !empty($_GET['monthnum']) ) {
if ( $redirect_url = get_month_link(get_query_var('year'), get_query_var('monthnum')) )
$redirect['query'] = remove_query_arg(array('year', 'monthnum'), $redirect['query']);
} elseif ( is_year() && isset($_GET['year']) ) {
} elseif ( is_year() && !empty($_GET['year']) ) {
if ( $redirect_url = get_year_link(get_query_var('year')) )
$redirect['query'] = remove_query_arg('year', $redirect['query']);
} elseif ( is_category() && isset($_GET['cat']) ) {
} elseif ( is_category() && !empty($_GET['cat']) ) {
if ( $redirect_url = get_category_link(get_query_var('cat')) )
$redirect['query'] = remove_query_arg('cat', $redirect['query']);
} elseif ( is_author() && isset($_GET['author']) ) {
} elseif ( is_author() && !empty($_GET['author']) ) {
$author = get_userdata(get_query_var('author'));
if ( false !== $author && $redirect_url = get_author_link(false, $author->ID, $author->user_nicename) )
$redirect['query'] = remove_query_arg('author', $redirect['author']);
@ -166,13 +166,13 @@ function redirect_canonical($requested_url=null, $do_redirect=true) {
// www.example.com vs example.com
$user_home = @parse_url(get_option('home'));
if ( isset($user_home['host']) )
if ( !empty($user_home['host']) )
$redirect['host'] = $user_home['host'];
if ( !isset($user_home['path']) )
if ( empty($user_home['path']) )
$user_home['path'] = '/';
// Handle ports
if ( isset($user_home['port']) )
if ( !empty($user_home['port']) )
$redirect['port'] = $user_home['port'];
else
unset($redirect['port']);
@ -183,7 +183,7 @@ function redirect_canonical($requested_url=null, $do_redirect=true) {
// Remove trailing spaces from the path
$redirect['path'] = preg_replace( '#(%20| )+$#', '', $redirect['path'] );
if ( isset( $redirect['query'] ) ) {
if ( !empty( $redirect['query'] ) ) {
// Remove trailing slashes from certain terminating query string args
$redirect['query'] = preg_replace( '#((p|page_id|cat|tag)=[^&]*?)(%20| )+$#', '$1', $redirect['query'] );
@ -224,26 +224,26 @@ function redirect_canonical($requested_url=null, $do_redirect=true) {
$compare_original = array($original['host'], $original['path']);
if ( isset( $original['port'] ) )
if ( !empty( $original['port'] ) )
$compare_original[] = $original['port'];
if ( isset( $original['query'] ) )
if ( !empty( $original['query'] ) )
$compare_original[] = $original['query'];
$compare_redirect = array($redirect['host'], $redirect['path']);
if ( isset( $redirect['port'] ) )
if ( !empty( $redirect['port'] ) )
$compare_redirect[] = $redirect['port'];
if ( isset( $redirect['query'] ) )
if ( !empty( $redirect['query'] ) )
$compare_redirect[] = $redirect['query'];
if ( $compare_original !== $compare_redirect ) {
$redirect_url = $redirect['scheme'] . '://' . $redirect['host'];
if ( isset($redirect['port']) )
if ( !empty($redirect['port']) )
$redirect_url .= ':' . $redirect['port'];
$redirect_url .= $redirect['path'];
if ( isset($redirect['query']) )
if ( !empty($redirect['query']) )
$redirect_url .= '?' . $redirect['query'];
}