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<?php // phpcs:ignoreFile

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/**

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* @since 1.7.17

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class Advanced_Ads_Filesystem {

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/**

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* Singleton instance of the class

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* @var Advanced_Ads_Filesystem

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protected static $instance;

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/**

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* Return an instance of Advanced_Ads_Filesystem

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* @return Advanced_Ads_Filesystem

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public static function get_instance() {

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if ( null === self::$instance ) {

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self::$instance = new self;

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}

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return self::$instance;

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}

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private function __construct() {}

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/**

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* Connect to the filesystem.

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* @param array $directories A list of directories. If any of these do

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* not exist, a WP_Error object will be returned.

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* @return bool|WP_Error True if able to connect, false or a WP_Error otherwise.

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public function fs_connect( $directories = [] ) {

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global $wp_filesystem;

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$directories = ( is_array( $directories ) && count( $directories ) ) ? $directories : [ WP_CONTENT_DIR ];

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// This will output a credentials form in event of failure, We don't want that, so just hide with a buffer.

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ob_start();

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$credentials = request_filesystem_credentials( '', '', false, $directories[0] );

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ob_end_clean();

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if ( false === $credentials ) {

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return false;

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}

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if ( ! WP_Filesystem( $credentials ) ) {

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$error = true;

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if ( is_object( $wp_filesystem ) && $wp_filesystem->errors->get_error_code() ) {

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$error = $wp_filesystem->errors;

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}

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// Failed to connect, Error and request again.

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ob_start();

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request_filesystem_credentials( '', '', $error, $directories[0] );

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ob_end_clean();

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return false;

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}

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if ( ! is_object( $wp_filesystem) ) {

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return new WP_Error( 'fs_unavailable', __( 'Could not access filesystem.', 'advanced-ads' ) );

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}

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if ( is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->get_error_code() ) {

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return new WP_Error( 'fs_error', __( 'Filesystem error.', 'advanced-ads' ), $wp_filesystem->errors);

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}

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foreach ( (array) $directories as $dir ) {

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switch ( $dir ) {

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case ABSPATH:

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if ( ! $wp_filesystem->abspath() )

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return new WP_Error( 'fs_no_root_dir', __( 'Unable to locate WordPress root directory.', 'advanced-ads' ) );

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break;

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case WP_CONTENT_DIR:

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if ( ! $wp_filesystem->wp_content_dir() )

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return new WP_Error( 'fs_no_content_dir', __( 'Unable to locate WordPress content directory (wp-content).', 'advanced-ads' ) );

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break;

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default:

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if ( ! $wp_filesystem->find_folder( $dir ) )

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/* translators: %s directory */

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return new WP_Error( 'fs_no_folder', sprintf( __( 'Unable to locate needed folder (%s).', 'advanced-ads' ) , esc_html( basename( $dir ) ) ) );

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break;

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}

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}

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return true;

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}

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/**

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* Replace the 'direct' absolute path with the Filesystem API path. Useful only when the 'direct' method is not used.

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* Works only with folders.

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* Check https://codex.wordpress.org/Filesystem_API for info

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* @param string existing path

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* @return string normalized path

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public function normalize_path( $path ) {

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global $wp_filesystem;

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return $wp_filesystem->find_folder( $path );

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}

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/**

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* Recursive directory creation based on full path.

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* @param string $target Full path to attempt to create.

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* @return bool Whether the path was created. True if path already exists.

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public function mkdir_p( $target ) {

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global $wp_filesystem;

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if ( $wp_filesystem instanceof WP_Filesystem_Direct ) {

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return wp_mkdir_p( $target );

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}

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$target = rtrim($target, '/');

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if ( empty($target) ) {

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$target = '/';

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}

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if ( $wp_filesystem->exists( $target ) ) {

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return $wp_filesystem->is_dir( $target );

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}

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$target_parent = dirname( $target );

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while ( '.' != $target_parent && ! $wp_filesystem->is_dir( $target_parent ) ) {

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$target_parent = dirname( $target_parent );

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}

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$folder_parts = explode( '/', substr( $target, strlen( $target_parent ) + 1 ) );

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for ( $i = 1, $c = count( $folder_parts ); $i <= $c; $i++ ) {

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$dir = $target_parent . '/' . implode( '/', array_slice( $folder_parts, 0, $i ) );

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if ( $wp_filesystem->exists( $dir ) ) { continue; }

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if ( ! $wp_filesystem->mkdir( $dir ) ) {

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return false;

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}

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}

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return true;

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}

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/**

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* Print the filesystem credentials modal when needed.

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public function print_request_filesystem_credentials_modal() {

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$filesystem_method = get_filesystem_method();

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ob_start();

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$filesystem_credentials_are_stored = request_filesystem_credentials( self_admin_url() );

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ob_end_clean();

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$request_filesystem_credentials = ( $filesystem_method != 'direct' && ! $filesystem_credentials_are_stored );

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if ( ! $request_filesystem_credentials ) {

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return;

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}

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<?php request_filesystem_credentials( site_url() ); ?>

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</div>

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</div>

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</div>

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<?php

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}

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}

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