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Multisite: Implement the get_by_path method in WP_Network.

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Move the internals of `get_network_by_path()` to `WP_Network()` and allow network objects to be retrieved by passing a requested domain and path.

Props johnjamesjacoby, jeremyfelt, drewapicture, wonderboymusic.
See #31985.

Built from https://develop.svn.wordpress.org/trunk@34099


git-svn-id: http://core.svn.wordpress.org/trunk@34067 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Jeremy Felt
2015-09-13 23:40:24 +00:00
parent c745c2deb3
commit fa1e1a8850
4 changed files with 160 additions and 136 deletions
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136
wp-includes/ms-load.php
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@@ -113,145 +113,15 @@ function ms_site_check() {
* Retrieve a network object by its domain and path.
*
* @since 3.9.0
*
* @global wpdb $wpdb
* @since 4.4.0 Converted to a wrapper for WP_Network::get_by_path()
*
* @param string $domain Domain to check.
* @param string $path Path to check.
* @param int|null $segments Path segments to use. Defaults to null, or the full path.
* @return object|false Network object if successful. False when no network is found.
* @return WP_Network|false Network object if successful. False when no network is found.
*/
function get_network_by_path( $domain, $path, $segments = null ) {
global $wpdb;
$domains = array( $domain );
$pieces = explode( '.', $domain );
/*
* It's possible one domain to search is 'com', but it might as well
* be 'localhost' or some other locally mapped domain.
*/
while ( array_shift( $pieces ) ) {
if ( $pieces ) {
$domains[] = implode( '.', $pieces );
}
}
/*
* If we've gotten to this function during normal execution, there is
* more than one network installed. At this point, who knows how many
* we have. Attempt to optimize for the situation where networks are
* only domains, thus meaning paths never need to be considered.
*
* This is a very basic optimization; anything further could have drawbacks
* depending on the setup, so this is best done per-install.
*/
$using_paths = true;
if ( wp_using_ext_object_cache() ) {
$using_paths = wp_cache_get( 'networks_have_paths', 'site-options' );
if ( false === $using_paths ) {
$using_paths = (bool) $wpdb->get_var( "SELECT id FROM $wpdb->site WHERE path <> '/' LIMIT 1" );
wp_cache_add( 'networks_have_paths', (int) $using_paths, 'site-options' );
}
}
$paths = array();
if ( $using_paths ) {
$path_segments = array_filter( explode( '/', trim( $path, "/" ) ) );
/**
* Filter the number of path segments to consider when searching for a site.
*
* @since 3.9.0
*
* @param int|null $segments The number of path segments to consider. WordPress by default looks at
* one path segment. The function default of null only makes sense when you
* know the requested path should match a network.
* @param string $domain The requested domain.
* @param string $path The requested path, in full.
*/
$segments = apply_filters( 'network_by_path_segments_count', $segments, $domain, $path );
if ( null !== $segments && count($path_segments ) > $segments ) {
$path_segments = array_slice( $path_segments, 0, $segments );
}
while ( count( $path_segments ) ) {
$paths[] = '/' . implode( '/', $path_segments ) . '/';
array_pop( $path_segments );
}
$paths[] = '/';
}
/**
* Determine a network by its domain and path.
*
* This allows one to short-circuit the default logic, perhaps by
* replacing it with a routine that is more optimal for your setup.
*
* Return null to avoid the short-circuit. Return false if no network
* can be found at the requested domain and path. Otherwise, return
* an object from wp_get_network().
*
* @since 3.9.0
*
* @param null|bool|object $network Network value to return by path.
* @param string $domain The requested domain.
* @param string $path The requested path, in full.
* @param int|null $segments The suggested number of paths to consult.
* Default null, meaning the entire path was to be consulted.
* @param array $paths The paths to search for, based on $path and $segments.
*/
$pre = apply_filters( 'pre_get_network_by_path', null, $domain, $path, $segments, $paths );
if ( null !== $pre ) {
return $pre;
}
// @todo Consider additional optimization routes, perhaps as an opt-in for plugins.
// We already have paths covered. What about how far domains should be drilled down (including www)?
$search_domains = "'" . implode( "', '", $wpdb->_escape( $domains ) ) . "'";
if ( ! $using_paths ) {
$network = $wpdb->get_row( "SELECT id, domain, path FROM $wpdb->site
WHERE domain IN ($search_domains) ORDER BY CHAR_LENGTH(domain) DESC LIMIT 1" );
if ( $network ) {
return wp_get_network( $network );
}
return false;
} else {
$search_paths = "'" . implode( "', '", $wpdb->_escape( $paths ) ) . "'";
$networks = $wpdb->get_results( "SELECT id, domain, path FROM $wpdb->site
WHERE domain IN ($search_domains) AND path IN ($search_paths)
ORDER BY CHAR_LENGTH(domain) DESC, CHAR_LENGTH(path) DESC" );
}
/*
* Domains are sorted by length of domain, then by length of path.
* The domain must match for the path to be considered. Otherwise,
* a network with the path of / will suffice.
*/
$found = false;
foreach ( $networks as $network ) {
if ( $network->domain === $domain || "www.$network->domain" === $domain ) {
if ( in_array( $network->path, $paths, true ) ) {
$found = true;
break;
}
}
if ( $network->path === '/' ) {
$found = true;
break;
}
}
if ( $found ) {
return wp_get_network( $network );
}
return false;
return WP_Network::get_by_path( $domain, $path, $segments );
}
/**