AlkantarClanX12
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<?php
/**
* Singleton class Filesystem.
*
* Manages the file system actions for caching modules.
*
* @since 1.6.0
* @package Hummingbird\Core
* @author: WPMUDEV, Ignacio Cruz (igmoweb), Anton Vanyukov (vanyukov)
*/
namespace Hummingbird\Core;
use Hummingbird\Core\Modules\Minify\Minify_Group;
use WP_Error;
use WP_Filesystem_Base;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Class Filesystem
*/
class Filesystem {
/**
* If filesystem is ok.
*
* @since 1.6.0
* @access private
* @var bool $status
*/
public $status = false;
/**
* Gravatar cache directory.
*
* @since 1.7.0
* @var string $gravatar_dir
*/
public $gravatar_dir;
/**
* Page cache directory.
*
* @since 1.7.0
* @var string
*/
public $cache_dir;
/**
* Base url for Gravatar links.
*
* @since 1.6.0
* @var string $baseurl
*/
public $baseurl;
/**
* Filesystem singleton instance.
*
* @since 1.6.0
* @access private
* @var Filesystem $_instance
*/
private static $instance;
/**
* Base dir for files.
*
* @since 1.6.0
* @since 1.7.0 changed from private to public
* @var string $basedir
*/
public $basedir;
/**
* Stores the domain of the site in multisite network.
*
* @since 1.7.0
* @access private
* @var string $site
*/
private $site;
/**
* Use WP_Filesystem API.
*
* @since 1.7.2
* @var bool $fs_api
*/
private $fs_api = false;
/**
* Filesystem constructor.
*
* Initiate file system for read/write operations.
*
* @since 1.6.0
* @access private
*/
private function __construct() {
$this->status = $this->init_fs();
if ( is_multisite() ) {
$blog = get_blog_details();
if ( '/' === $blog->path ) {
$this->site = trailingslashit( $blog->domain );
} else {
$this->site = $blog->path;
}
}
if ( ! defined( 'WP_CONTENT_DIR' ) ) {
define( 'WP_CONTENT_DIR', ABSPATH . 'wp-content' );
}
$this->basedir = WP_CONTENT_DIR . '/wphb-cache/';
$this->gravatar_dir = WP_CONTENT_DIR . '/wphb-cache/gravatar/';
$this->cache_dir = WP_CONTENT_DIR . '/wphb-cache/cache/';
$this->baseurl = trailingslashit( content_url() ) . 'wphb-cache/gravatar/';
}
/**
* Get Filesystem singleton instance.
*
* @since 1.6.0
* @return Filesystem
*/
public static function instance() {
if ( ! is_object( self::$instance ) ) {
self::$instance = new Filesystem();
}
return self::$instance;
}
/**
* Initiate file system for read/write operations
*
* @since 1.6.0
*
* @return bool|WP_Error Return true if everything is ok.
*/
private function init_fs() {
// Need to include file.php for frontend.
if ( ! function_exists( 'request_filesystem_credentials' ) ) {
require_once ABSPATH . 'wp-admin/includes/file.php';
}
// Removes CRITICAL Uncaught Error: Call to undefined function submit_button() in wp-admin/includes/file.php:1287.
require_once ABSPATH . 'wp-admin/includes/template.php';
// Check if the user has write permissions.
$access_type = get_filesystem_method();
if ( 'direct' === $access_type ) {
$this->fs_api = true;
// You can safely run request_filesystem_credentials() without any issues
// and don't need to worry about passing in a URL.
$credentials = request_filesystem_credentials( site_url() . '/wp-admin/', '', false, false, null );
// Initialize the Filesystem API.
if ( ! WP_Filesystem( $credentials ) ) {
// Some problems, exit.
return new WP_Error( 'fs-error', __( 'Error: Unexpected error while writing a file. Please view error log for more information.', 'wphb' ) );
}
} else {
// Don't have direct write access.
$this->fs_api = false;
}
// Can not write to wp-content directory.
if ( defined( WP_CONTENT_DIR ) && ! is_writeable( WP_CONTENT_DIR ) ) {
return new WP_Error( 'fs-error', __( 'Error: The wp-content directory is not writable. Ensure the folder has proper read/write permissions for caching to function successfully.', 'wphb' ) );
}
return true;
}
/**
* Native php directory removal (used when WP_Filesystem is not available);
*
* @since 1.7.2
*
* @access private
* @param string $path Path to delete.
* @param bool $skip_subdirectories Skip subdirectories.
*
* @return bool
*/
private function native_dir_delete( $path, $skip_subdirectories = false ) {
if ( is_wp_error( $this->status ) ) {
return false;
}
// Use direct filesystem php functions.
$dir = @opendir( $path );
while ( false !== ( $file = readdir( $dir ) ) ) {
if ( '.' === $file || '..' === $file ) {
continue;
}
$full = trailingslashit( $path ) . $file;
if ( is_dir( $full ) && ! $skip_subdirectories ) {
$this->native_dir_delete( $full );
} elseif ( ! is_dir( $full ) ) {
@unlink( $full );
}
}
closedir( $dir );
// Remove empty directories or if allowed.
if ( 2 === count( scandir( $path ) ) || ! $skip_subdirectories ) {
@rmdir( $path );
}
return true;
}
/**
* Resolves minify module's asset path or url, taking into account user-defined path
*
* @since 2.6.0
*
* @param bool|string $user_defined_path Optional. The path to resolve. Default to user-defined path in Minify Settings.
* @param string $mode Optional. Specify 'path' or 'url'. Default: 'path'.
*
* @return string
*/
public function resolve_minify_asset_path( $user_defined_path = false, $mode = 'path' ) {
$upload = wp_upload_dir();
$basedir = 'path' === $mode ? $upload['basedir'] : $upload['baseurl'];
if ( false === $user_defined_path ) {
$user_defined_path = Settings::get_setting( 'file_path', 'minify' );
}
// Check if user defined a custom path.
if ( ! isset( $user_defined_path ) || empty( $user_defined_path ) ) {
return $basedir . '/hummingbird-assets';
}
if ( strpos( $user_defined_path, '/' ) === 0 ) { // root relative path.
return str_replace( '//', '/', ABSPATH . $user_defined_path );
}
return trailingslashit( $basedir ) . str_replace( './', '/', $user_defined_path );
}
/**
* Resolves directory info for critical assets like critical.css
* Default path can be overridden by using global constants in wp-config.php.
*
* @since 2.6.0
* @return array
*/
public static function critical_assets_dir() {
static $info;
if ( isset( $info ) ) {
return $info;
}
if ( defined( 'WPHB_CRITICAL_ASSETS_PATH' ) && ! empty( WPHB_CRITICAL_ASSETS_PATH ) ) {
$main_path = ABSPATH . trim( WPHB_CRITICAL_ASSETS_PATH, '\/ ' ) . '/';
if ( is_multisite() ) {
$blog_id = get_current_blog_id();
$assets_path = $main_path . 'sites/' . $blog_id . '/';
} else {
$assets_path = $main_path;
}
} else {
$upload = wp_upload_dir();
$assets_path = $upload['basedir'] . '/wphb-critical-assets/';
}
$rel_path = str_replace( ABSPATH, '', $assets_path );
if ( is_multisite() ) {
$assets_url = get_site_url( get_main_site_id(), $rel_path );
} else {
$assets_url = site_url( $rel_path );
}
$info = array(
'path' => $assets_path,
'url' => trailingslashit( $assets_url ),
);
return $info;
}
/**
* Delete everything in selected folder.
*
* @since 1.6.0
* @since 1.7.2 Added if $this->fs_api check.
* @since 1.9 Added $ao_module. If set to true will use the $dir path without $this->basedir
* @since 2.7.3 Added $skip_subdirectories. @see https://incsub.atlassian.net/browse/HUM-497
*
* @param string $dir Directory in wp-content/wphb-cache/ to purge file from.
* @param bool $ao_module Asset Optimization module.
* @param bool $skip_subdirectories Skip subdirectories.
*
* @return bool
*/
public function purge( $dir = 'cache', $ao_module = false, $skip_subdirectories = false ) {
if ( is_wp_error( $this->status ) ) {
return false;
}
if ( $dir ) {
$dir = trailingslashit( $dir );
}
// Default behavior - use basedir path.
if ( ! $ao_module ) {
$path = $this->basedir . $dir;
} else {
$path = trailingslashit( $this->resolve_minify_asset_path() );
}
// If directory not found - exit.
if ( ! is_dir( $path ) ) {
return true;
}
// Use WP_Filesystem API to delete files.
if ( $this->fs_api ) {
/**
* WP_Filesystem global.
*
* @type WP_Filesystem_Base $wp_filesystem
*/
global $wp_filesystem;
// Delete all content inside the directory.
foreach ( $wp_filesystem->dirlist( $path ) as $asset ) {
// Skip subdirectories.
if ( $skip_subdirectories && isset( $asset['type'] ) && 'd' === $asset['type'] ) {
continue;
}
if ( ! $wp_filesystem->delete( $path . $asset['name'], true, $asset['type'] ) ) {
return false;
}
}
// Delete the directory itself if empty, or we can remove the dir.
if ( ( empty( $wp_filesystem->dirlist( $path ) ) || ! $skip_subdirectories ) && ! $wp_filesystem->delete( $path ) ) {
return false;
}
} else {
// Use direct filesystem php functions.
if ( ! $this->native_dir_delete( $path, $skip_subdirectories ) ) {
return false;
}
}
return true;
}
/**
* Clean up during uninstall.
*
* @since 1.6.0
* @since 1.7.2 Added if $this->fs_api check.
*
* @return bool
*/
public function clean_up() {
if ( is_wp_error( $this->status ) ) {
return false;
}
// Use WP_Filesystem API.
if ( $this->fs_api ) {
/**
* WP_Filesystem global.
*
* @type WP_Filesystem_Base $wp_filesystem
*/
global $wp_filesystem;
if ( ! $wp_filesystem->delete( $this->basedir, true ) ) {
return false;
}
} else {
// Use direct filesystem php functions.
if ( ! $this->native_dir_delete( $this->basedir ) ) {
return false;
}
}
return true;
}
/**
* Find file in the filesystem.
*
* @since 1.6.0
* @since 1.7.2 Added if $this->fs_api check.
*
* @param string $file File to find.
* @param bool $gravatar To search for gravatar or page cache.
*
* @return bool
*/
public function find( $file, $gravatar = false ) {
if ( is_wp_error( $this->status ) ) {
return false;
}
$path = $this->cache_dir . $this->site;
if ( $gravatar ) {
// If Gravatar cache, we need to use first three letters of hash as a directory.
$hash = trailingslashit( substr( $file, 0, 3 ) );
$path = $this->gravatar_dir . $hash;
}
// Use WP_Filesystem API.
if ( $this->fs_api ) {
/**
* WP_Filesystem global.
*
* @type WP_Filesystem_Base $wp_filesystem
*/
global $wp_filesystem;
return $wp_filesystem->exists( $path . $file );
} else {
// Use direct filesystem php functions.
return file_exists( $path . $file );
}
}
/**
* Write file to selected folder.
*
* @since 1.6.0
* @since 1.7.2 Added if $this->fs_api check.
*
* @param string $file Name of the file.
* @param string $content File contents.
* @param bool $gravatar To search for gravatar or page cache.
*
* @return bool|WP_Error
*/
public function write( $file, $content = '', $gravatar = false ) {
if ( is_wp_error( $this->status ) ) {
return false;
}
// Determine path for Gravatar module.
if ( $gravatar ) {
// If Gravatar cache, we need to use first three letters of hash as a directory.
$hash = '';
// No need for a hash if we're just adding a blank index.html file.
if ( 'index.html' !== $file ) {
$hash = trailingslashit( substr( $file, 0, 3 ) );
}
$path = $this->gravatar_dir . $hash;
} else {
// Determine path for page caching module.
$path = trailingslashit( dirname( $file ) );
// Remove directory from file.
$file = basename( $file );
}
// Use WP_Filesystem API.
if ( $this->fs_api ) {
/**
* WP_Filesystem global.
*
* @type WP_Filesystem_Base $wp_filesystem
*/
global $wp_filesystem;
// Check if cache folder exists. If not - create it.
if ( ! $wp_filesystem->exists( $path ) ) {
if ( ! @wp_mkdir_p( $path ) ) {
return new WP_Error(
'fs-dir-error',
sprintf(
/* translators: %s: directory */
__( 'Error creating directory %s.', 'wphb' ),
esc_html( $path )
)
);
}
}
// Create the file.
if ( ! $wp_filesystem->put_contents( $path . $file, $content, FS_CHMOD_FILE ) ) {
return new WP_Error(
'fs-file-error',
sprintf(
/* translators: %s: file */
__( 'Error uploading file %s.', 'wphb' ),
esc_html( $file )
)
);
}
} else {
// Use direct filesystem php functions.
// Check if cache folder exists. If not - create it.
if ( ! is_dir( $path ) ) {
if ( ! @wp_mkdir_p( $path ) ) {
return new WP_Error(
'fs-dir-error',
sprintf(
/* translators: %s: directory */
__( 'Error creating directory %s.', 'wphb' ),
esc_html( $path )
)
);
}
}
// Create the file.
$file = fopen( $path . $file, 'w' );
if ( ! fwrite( $file, $content ) ) {
return new WP_Error(
'fs-file-error',
sprintf(
/* translators: %s: file */
__( 'Error uploading file %s.', 'wphb' ),
esc_html( $file )
)
);
} elseif ( $file ) {
fclose( $file );
}
}
return true;
}
/**
* Upload file to custom directory.
*
* This is similar to wp_upload_bits(), but the directory structure is changed.
*
* @since 1.9
*
* @param string $name Filename.
* @param mixed $bits File content.
*
* @used-by Minify_Group::insert_group()
*
* @return array
*/
public static function handle_file_upload( $name, $bits ) {
if ( empty( $name ) ) {
return array(
'error' => __( 'Empty filename', 'wphb' ),
);
}
$wp_filetype = wp_check_filetype( $name );
if ( ! $wp_filetype['ext'] && ! current_user_can( 'unfiltered_upload' ) ) {
return array(
'error' => __( 'Sorry, this file type is not permitted for security reasons.', 'wphb' ),
);
}
$upload = wp_upload_dir();
if ( false !== $upload['error'] ) {
return $upload;
}
$user_defined_path = Settings::get_setting( 'file_path', 'minify' );
$basedir = $upload['basedir'];
$baseurl = $upload['baseurl'];
// Check if user defined a custom path.
if ( ! isset( $user_defined_path ) || empty( $user_defined_path ) ) {
$custom_subdir = '/hummingbird-assets';
$custom_dir = $upload['basedir'] . $custom_subdir;
} else {
/**
* Possible variations:
* 1. some/path => /wp-content/uploads/{$path}
* 2. /some/path => {$path}
* 3. ./some/path => /wp-content/uploads/{$path}
*/
if ( '/' === $user_defined_path[0] ) { // root relative path.
$custom_subdir = $user_defined_path;
$basedir = ABSPATH;
$baseurl = site_url();
$custom_dir = $basedir . $user_defined_path;
$custom_dir = str_replace( '//', '/', $custom_dir );
} else {
$user_defined_path = str_replace( './', '/', $user_defined_path );
// Prepend / to relative paths.
$prepend = '';
if ( '/' !== $user_defined_path[0] ) {
$prepend = '/';
}
$custom_subdir = $prepend . $user_defined_path;
$custom_dir = $upload['basedir'] . $custom_subdir;
}
}
/**
* We really should not be generating unique file names, because there are instances, when WP will
* generate a bunch of similar files.
* TODO: For now, we're going to remove similar files. But better to just remove the wp_unique_filename function.
*/
if ( file_exists( trailingslashit( $custom_dir ) . $name ) ) {
@unlink( trailingslashit( $custom_dir ) . $name );
}
$filename = wp_unique_filename( $custom_dir, $name );
$new_file = trailingslashit( $custom_dir ) . $filename;
if ( ! wp_mkdir_p( dirname( $new_file ) ) ) {
if ( 0 === strpos( $basedir, ABSPATH ) ) {
$error_path = str_replace( ABSPATH, '', $basedir ) . $custom_subdir;
} else {
$error_path = basename( $basedir ) . $custom_subdir;
}
return array(
'error' => sprintf(
/* translators: %s: directory path */
__( 'Unable to create directory %s. Is its parent directory writable by the server?', 'wphb' ),
$error_path
),
);
}
$ifp = @fopen( $new_file, 'wb' );
if ( ! $ifp ) {
return array(
/* translators: %s: file name with path */
'error' => sprintf( __( 'Could not write file %s', 'wphb' ), $new_file ),
);
}
@fwrite( $ifp, $bits );
fclose( $ifp );
clearstatcache();
// Set correct file permissions.
$stat = @stat( dirname( $new_file ) );
$perms = $stat['mode'] & 0007777;
$perms = $perms & 0000666;
@chmod( $new_file, $perms );
clearstatcache();
// Compute the URL.
$url = $baseurl . trailingslashit( $custom_subdir ) . $filename;
return array(
'file' => $new_file,
'url' => $url,
'type' => $wp_filetype['type'],
'error' => false,
);
}
}