Your IP : 18.224.64.51
<?php
defined( 'WPINC' ) OR exit;
/**
* General utility function for Document Gallery.
*
* @author drossiter
*/
class DG_Util {
/**
* @param callable $callable The callable.
* @return string The string representation of the callable.
*/
public static function callableToString($callable) {
$ret = $callable;
if ( is_array( $callable ) ) {
$sep = '::';
if ( !is_string( $callable[0] ) ) {
$callable[0] = get_class( $callable[0] );
$sep = '->';
}
$ret = "{$callable[0]}$sep{$callable[1]}";
}
return $ret;
}
/**
* @return int[] All blog IDs.
*/
public static function getBlogIds() {
global $wpdb;
return $wpdb->get_col( "SELECT blog_id FROM $wpdb->blogs" );
}
/**
* Caller should handle removal of the temp file when finished.
*
* @param string $ext The extension to be given to the temp file.
*
* @return string A temp file with the given extension.
*/
public static function getTempFile( $ext = 'png' ) {
static $base = null;
static $tmp;
if ( is_null( $base ) ) {
$base = md5( time() );
$tmp = untrailingslashit( get_temp_dir() );
}
return $tmp . DIRECTORY_SEPARATOR . wp_unique_filename( $tmp, $base . '.' . $ext );
}
/**
* @param mixed $maybeint Data you wish to have converted to a positive integer.
* @return int A positive integer.
*/
public static function posint( $maybeint ) {
return max( absint( $maybeint ), 1 );
}
/**
* Converts provided value to bool.
*
* @param mixed $val To be converted.
* @param bool|NULL $default The value to return if unable to parse $val.
* @return bool|NULL Bool value if can be parsed, else NULL.
*/
public static function toBool( $val, $default = null ) {
if ( is_null( $val ) ) {
return false;
}
if ( is_bool( $val ) ) {
return $val;
}
if ( is_int( $val ) ) {
if ( 1 === $val ) {
return true;
}
if ( 0 === $val ) {
return false;
}
}
if ( is_string( $val ) ) {
$val = strtolower( $val );
if ( 'true' === $val || '1' === $val ) {
return true;
}
if ( 'false' === $val || '0' === $val ) {
return false;
}
}
return $default;
}
/**
* Wrapper method which handles deciding whether to include minified assets. Minified files are not used
* in SCRIPT_DEBUG mode to make troubleshooting easier.
*
* @param $handle string Unique identifier for the script/style.
* @param $src string Relative path to asset from DG_URL.
* @param string[] $deps Any assets depended on by asset to be enqueued.
* @param bool $in_footer For scripts, dictates whether to put in footer.
*/
public static function enqueueAsset( $handle, $src, $deps = array(), $in_footer = true ) {
$src = self::getAssetPath( $src );
if ( self::endsWith( $src, '.js' ) ) {
wp_enqueue_script( $handle, $src, $deps, DG_VERSION, $in_footer );
} else {
wp_enqueue_style( $handle, $src, $deps, DG_VERSION );
}
}
/**
* Converts path to min version when WP is not running in debug mode and fully-qualifies path.
*
* @param $src string Relative path to non-minified asset from DG_URL.
* @return string The fully-qualified, potentially min version of the given path.
*/
public static function getAssetPath( $src ) {
if ( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) {
$parts = explode( '.', $src );
$src = $parts[0] . '.min.' . $parts[1];
}
return DG_URL . $src;
}
/**
* @param $haystack string The string to be tested.
* @param $needle string The value to be tested against.
* @return bool Whether $haystack starts with $needle.
*/
public static function startsWith( $haystack, $needle ) {
return substr( $haystack, 0, strlen( $needle ) ) === $needle;
}
/**
* @param $haystack string The string to be tested.
* @param $needle string The value to be tested against.
* @return bool Whether $haystack ends with $needle.
*/
public static function endsWith( $haystack, $needle ) {
return substr( $haystack, -strlen( $needle ) ) === $needle;
}
/**
* @return bool Whether the WP host is a public site accessible from the Internet.
*/
public static function isPublicSite() {
$host = parse_url( site_url(), PHP_URL_HOST );
$is_ip = filter_var( $host, FILTER_VALIDATE_IP );
return $is_ip ? self::isPublicIp( $host ) : self::isPublicHostname( $host );
}
/**
* @param $ip string The IP address.
* @return bool Whether the given IP is public.
*/
private static function isPublicIp( $ip ) {
return false !== filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE )
&& '127.0.0.1' !== $ip && '::1' !== $ip;
}
/**
* @param $hostname string The hostname to test.
* @return bool Whether the given hostname has at least one public IP address associated.
*/
private static function isPublicHostname( $hostname ) {
$ret = false;
foreach ( gethostbynamel( $hostname ) as $ip ) {
if ( self::isPublicIp( $ip ) ) {
$ret = true;
break;
}
}
return $ret;
}
}