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95831a8a67
Built from https://develop.svn.wordpress.org/trunk@25799 git-svn-id: http://core.svn.wordpress.org/trunk@25711 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1104 lines
43 KiB
PHP
1104 lines
43 KiB
PHP
<?php
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/**
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* Functions for reading, writing, modifying, and deleting files on the file system.
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* Includes functionality for theme-specific files as well as operations for uploading,
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* archiving, and rendering output when necessary.
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/** The descriptions for theme files. */
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$wp_file_descriptions = array(
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'index.php' => __( 'Main Index Template' ),
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'style.css' => __( 'Stylesheet' ),
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'editor-style.css' => __( 'Visual Editor Stylesheet' ),
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'editor-style-rtl.css' => __( 'Visual Editor RTL Stylesheet' ),
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'rtl.css' => __( 'RTL Stylesheet' ),
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'comments.php' => __( 'Comments' ),
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'comments-popup.php' => __( 'Popup Comments' ),
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'footer.php' => __( 'Footer' ),
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'header.php' => __( 'Header' ),
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'sidebar.php' => __( 'Sidebar' ),
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'archive.php' => __( 'Archives' ),
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'author.php' => __( 'Author Template' ),
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'tag.php' => __( 'Tag Template' ),
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'category.php' => __( 'Category Template' ),
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'page.php' => __( 'Page Template' ),
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'search.php' => __( 'Search Results' ),
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'searchform.php' => __( 'Search Form' ),
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'single.php' => __( 'Single Post' ),
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'404.php' => __( '404 Template' ),
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'link.php' => __( 'Links Template' ),
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'functions.php' => __( 'Theme Functions' ),
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'attachment.php' => __( 'Attachment Template' ),
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'image.php' => __('Image Attachment Template'),
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'video.php' => __('Video Attachment Template'),
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'audio.php' => __('Audio Attachment Template'),
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'application.php' => __('Application Attachment Template'),
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'my-hacks.php' => __( 'my-hacks.php (legacy hacks support)' ),
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'.htaccess' => __( '.htaccess (for rewrite rules )' ),
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// Deprecated files
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'wp-layout.css' => __( 'Stylesheet' ),
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'wp-comments.php' => __( 'Comments Template' ),
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'wp-comments-popup.php' => __( 'Popup Comments Template' ),
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);
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/**
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* Get the description for standard WordPress theme files and other various standard
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* WordPress files
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*
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* @since 1.5.0
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*
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* @uses _cleanup_header_comment
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* @uses $wp_file_descriptions
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* @param string $file Filesystem path or filename
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* @return string Description of file from $wp_file_descriptions or basename of $file if description doesn't exist
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*/
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function get_file_description( $file ) {
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global $wp_file_descriptions;
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if ( isset( $wp_file_descriptions[basename( $file )] ) ) {
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return $wp_file_descriptions[basename( $file )];
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}
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elseif ( file_exists( $file ) && is_file( $file ) ) {
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$template_data = implode( '', file( $file ) );
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if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ))
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return sprintf( __( '%s Page Template' ), _cleanup_header_comment($name[1]) );
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}
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return trim( basename( $file ) );
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}
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/**
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* Get the absolute filesystem path to the root of the WordPress installation
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*
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* @since 1.5.0
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*
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* @uses get_option
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* @return string Full filesystem path to the root of the WordPress installation
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*/
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function get_home_path() {
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$home = get_option( 'home' );
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$siteurl = get_option( 'siteurl' );
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if ( ! empty( $home ) && 0 !== strcasecmp( $home, $siteurl ) ) {
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$wp_path_rel_to_home = str_ireplace( $home, '', $siteurl ); /* $siteurl - $home */
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$pos = strripos( str_replace( '\\', '/', $_SERVER['SCRIPT_FILENAME'] ), trailingslashit( $wp_path_rel_to_home ) );
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$home_path = substr( $_SERVER['SCRIPT_FILENAME'], 0, $pos );
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$home_path = trailingslashit( $home_path );
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} else {
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$home_path = ABSPATH;
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}
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return str_replace( '\\', '/', $home_path );
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}
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/**
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* Returns a listing of all files in the specified folder and all subdirectories up to 100 levels deep.
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* The depth of the recursiveness can be controlled by the $levels param.
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*
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* @since 2.6.0
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*
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* @param string $folder Full path to folder
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* @param int $levels (optional) Levels of folders to follow, Default: 100 (PHP Loop limit).
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* @return bool|array False on failure, Else array of files
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*/
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function list_files( $folder = '', $levels = 100 ) {
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if ( empty($folder) )
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return false;
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if ( ! $levels )
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return false;
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$files = array();
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if ( $dir = @opendir( $folder ) ) {
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while (($file = readdir( $dir ) ) !== false ) {
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if ( in_array($file, array('.', '..') ) )
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continue;
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if ( is_dir( $folder . '/' . $file ) ) {
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$files2 = list_files( $folder . '/' . $file, $levels - 1);
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if ( $files2 )
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$files = array_merge($files, $files2 );
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else
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$files[] = $folder . '/' . $file . '/';
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} else {
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$files[] = $folder . '/' . $file;
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}
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}
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}
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@closedir( $dir );
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return $files;
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}
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/**
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* Returns a filename of a Temporary unique file.
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* Please note that the calling function must unlink() this itself.
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*
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* The filename is based off the passed parameter or defaults to the current unix timestamp,
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* while the directory can either be passed as well, or by leaving it blank, default to a writable temporary directory.
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*
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* @since 2.6.0
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*
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* @param string $filename (optional) Filename to base the Unique file off
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* @param string $dir (optional) Directory to store the file in
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* @return string a writable filename
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*/
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function wp_tempnam($filename = '', $dir = '') {
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if ( empty($dir) )
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$dir = get_temp_dir();
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$filename = basename($filename);
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if ( empty($filename) )
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$filename = time();
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$filename = preg_replace('|\..*$|', '.tmp', $filename);
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$filename = $dir . wp_unique_filename($dir, $filename);
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touch($filename);
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return $filename;
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}
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/**
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* Make sure that the file that was requested to edit, is allowed to be edited
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*
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* Function will die if if you are not allowed to edit the file
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*
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* @since 1.5.0
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*
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* @uses wp_die
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* @uses validate_file
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* @param string $file file the users is attempting to edit
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* @param array $allowed_files Array of allowed files to edit, $file must match an entry exactly
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* @return null
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*/
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function validate_file_to_edit( $file, $allowed_files = '' ) {
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$code = validate_file( $file, $allowed_files );
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if (!$code )
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return $file;
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switch ( $code ) {
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case 1 :
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wp_die( __('Sorry, can’t edit files with “..” in the name. If you are trying to edit a file in your WordPress home directory, you can just type the name of the file in.' ));
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//case 2 :
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// wp_die( __('Sorry, can’t call files with their real path.' ));
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case 3 :
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wp_die( __('Sorry, that file cannot be edited.' ));
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}
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}
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/**
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* Handle PHP uploads in WordPress, sanitizing file names, checking extensions for mime type,
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* and moving the file to the appropriate directory within the uploads directory.
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*
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* @since 2.0
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*
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* @uses wp_handle_upload_error
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* @uses apply_filters
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* @uses is_multisite
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* @uses wp_check_filetype_and_ext
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* @uses current_user_can
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* @uses wp_upload_dir
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* @uses wp_unique_filename
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* @uses delete_transient
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* @param array $file Reference to a single element of $_FILES. Call the function once for each uploaded file.
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* @param array $overrides Optional. An associative array of names=>values to override default variables with extract( $overrides, EXTR_OVERWRITE ).
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* @param string $time Optional. Time formatted in 'yyyy/mm'.
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* @return array On success, returns an associative array of file attributes. On failure, returns $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ).
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*/
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function wp_handle_upload( &$file, $overrides = false, $time = null ) {
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// The default error handler.
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if ( ! function_exists( 'wp_handle_upload_error' ) ) {
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function wp_handle_upload_error( &$file, $message ) {
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return array( 'error'=>$message );
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}
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}
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$file = apply_filters( 'wp_handle_upload_prefilter', $file );
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// You may define your own function and pass the name in $overrides['upload_error_handler']
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$upload_error_handler = 'wp_handle_upload_error';
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// You may have had one or more 'wp_handle_upload_prefilter' functions error out the file. Handle that gracefully.
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if ( isset( $file['error'] ) && !is_numeric( $file['error'] ) && $file['error'] )
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return $upload_error_handler( $file, $file['error'] );
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// You may define your own function and pass the name in $overrides['unique_filename_callback']
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$unique_filename_callback = null;
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// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
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$action = 'wp_handle_upload';
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// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
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$upload_error_strings = array( false,
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__( "The uploaded file exceeds the upload_max_filesize directive in php.ini." ),
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__( "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form." ),
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__( "The uploaded file was only partially uploaded." ),
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__( "No file was uploaded." ),
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'',
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__( "Missing a temporary folder." ),
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__( "Failed to write file to disk." ),
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__( "File upload stopped by extension." ));
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// All tests are on by default. Most can be turned off by $overrides[{test_name}] = false;
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$test_form = true;
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$test_size = true;
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$test_upload = true;
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// If you override this, you must provide $ext and $type!!!!
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$test_type = true;
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$mimes = false;
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// Install user overrides. Did we mention that this voids your warranty?
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if ( is_array( $overrides ) )
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extract( $overrides, EXTR_OVERWRITE );
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// A correct form post will pass this test.
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if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
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return call_user_func($upload_error_handler, $file, __( 'Invalid form submission.' ));
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// A successful upload will pass this test. It makes no sense to override this one.
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if ( $file['error'] > 0 )
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return call_user_func($upload_error_handler, $file, $upload_error_strings[$file['error']] );
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// A non-empty file will pass this test.
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if ( $test_size && !($file['size'] > 0 ) ) {
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if ( is_multisite() )
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$error_msg = __( 'File is empty. Please upload something more substantial.' );
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else
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$error_msg = __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.' );
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return call_user_func($upload_error_handler, $file, $error_msg);
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}
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// A properly uploaded file will pass this test. There should be no reason to override this one.
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if ( $test_upload && ! @ is_uploaded_file( $file['tmp_name'] ) )
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return call_user_func($upload_error_handler, $file, __( 'Specified file failed upload test.' ));
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// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
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if ( $test_type ) {
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$wp_filetype = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], $mimes );
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extract( $wp_filetype );
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// Check to see if wp_check_filetype_and_ext() determined the filename was incorrect
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if ( $proper_filename )
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$file['name'] = $proper_filename;
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if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
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return call_user_func($upload_error_handler, $file, __( 'Sorry, this file type is not permitted for security reasons.' ));
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if ( !$ext )
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$ext = ltrim(strrchr($file['name'], '.'), '.');
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if ( !$type )
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$type = $file['type'];
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} else {
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$type = '';
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}
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// A writable uploads dir will pass this test. Again, there's no point overriding this one.
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if ( ! ( ( $uploads = wp_upload_dir($time) ) && false === $uploads['error'] ) )
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return call_user_func($upload_error_handler, $file, $uploads['error'] );
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$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );
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// Move the file to the uploads dir
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$new_file = $uploads['path'] . "/$filename";
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if ( false === @ move_uploaded_file( $file['tmp_name'], $new_file ) ) {
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if ( 0 === strpos( $uploads['basedir'], ABSPATH ) )
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$error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir'];
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else
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$error_path = basename( $uploads['basedir'] ) . $uploads['subdir'];
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return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $error_path ) );
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}
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// Set correct file permissions
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$stat = stat( dirname( $new_file ));
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$perms = $stat['mode'] & 0000666;
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@ chmod( $new_file, $perms );
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// Compute the URL
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$url = $uploads['url'] . "/$filename";
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if ( is_multisite() )
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delete_transient( 'dirsize_cache' );
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return apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ), 'upload' );
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}
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/**
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* Handle sideloads, which is the process of retrieving a media item from another server instead of
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* a traditional media upload. This process involves sanitizing the filename, checking extensions
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* for mime type, and moving the file to the appropriate directory within the uploads directory.
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*
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* @since 2.6.0
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*
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* @uses wp_handle_upload_error
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* @uses apply_filters
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* @uses wp_check_filetype_and_ext
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* @uses current_user_can
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* @uses wp_upload_dir
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* @uses wp_unique_filename
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* @param array $file an array similar to that of a PHP $_FILES POST array
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* @param array $overrides Optional. An associative array of names=>values to override default variables with extract( $overrides, EXTR_OVERWRITE ).
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* @param string $time Optional. Time formatted in 'yyyy/mm'.
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* @return array On success, returns an associative array of file attributes. On failure, returns $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ).
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*/
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function wp_handle_sideload( &$file, $overrides = false, $time = null ) {
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// The default error handler.
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if (! function_exists( 'wp_handle_upload_error' ) ) {
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function wp_handle_upload_error( &$file, $message ) {
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return array( 'error'=>$message );
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}
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}
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// You may define your own function and pass the name in $overrides['upload_error_handler']
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$upload_error_handler = 'wp_handle_upload_error';
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// You may define your own function and pass the name in $overrides['unique_filename_callback']
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$unique_filename_callback = null;
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// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
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$action = 'wp_handle_sideload';
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// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
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|
$upload_error_strings = array( false,
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__( "The uploaded file exceeds the <code>upload_max_filesize</code> directive in <code>php.ini</code>." ),
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|
__( "The uploaded file exceeds the <em>MAX_FILE_SIZE</em> directive that was specified in the HTML form." ),
|
|
__( "The uploaded file was only partially uploaded." ),
|
|
__( "No file was uploaded." ),
|
|
'',
|
|
__( "Missing a temporary folder." ),
|
|
__( "Failed to write file to disk." ),
|
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__( "File upload stopped by extension." ));
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|
|
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// All tests are on by default. Most can be turned off by $overrides[{test_name}] = false;
|
|
$test_form = true;
|
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$test_size = true;
|
|
|
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// If you override this, you must provide $ext and $type!!!!
|
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$test_type = true;
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$mimes = false;
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|
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// Install user overrides. Did we mention that this voids your warranty?
|
|
if ( is_array( $overrides ) )
|
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extract( $overrides, EXTR_OVERWRITE );
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|
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// A correct form post will pass this test.
|
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if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
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return $upload_error_handler( $file, __( 'Invalid form submission.' ));
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// A successful upload will pass this test. It makes no sense to override this one.
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if ( ! empty( $file['error'] ) )
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return $upload_error_handler( $file, $upload_error_strings[$file['error']] );
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// A non-empty file will pass this test.
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if ( $test_size && !(filesize($file['tmp_name']) > 0 ) )
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return $upload_error_handler( $file, __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini.' ));
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// A properly uploaded file will pass this test. There should be no reason to override this one.
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if (! @ is_file( $file['tmp_name'] ) )
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return $upload_error_handler( $file, __( 'Specified file does not exist.' ));
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// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
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if ( $test_type ) {
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$wp_filetype = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], $mimes );
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extract( $wp_filetype );
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// Check to see if wp_check_filetype_and_ext() determined the filename was incorrect
|
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if ( $proper_filename )
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$file['name'] = $proper_filename;
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if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
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return $upload_error_handler( $file, __( 'Sorry, this file type is not permitted for security reasons.' ));
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if ( !$ext )
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$ext = ltrim(strrchr($file['name'], '.'), '.');
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if ( !$type )
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$type = $file['type'];
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}
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// A writable uploads dir will pass this test. Again, there's no point overriding this one.
|
|
if ( ! ( ( $uploads = wp_upload_dir( $time ) ) && false === $uploads['error'] ) )
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return $upload_error_handler( $file, $uploads['error'] );
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$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );
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// Strip the query strings.
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$filename = str_replace('?','-', $filename);
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$filename = str_replace('&','-', $filename);
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// Move the file to the uploads dir
|
|
$new_file = $uploads['path'] . "/$filename";
|
|
if ( false === @ rename( $file['tmp_name'], $new_file ) ) {
|
|
if ( 0 === strpos( $uploads['basedir'], ABSPATH ) )
|
|
$error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir'];
|
|
else
|
|
$error_path = basename( $uploads['basedir'] ) . $uploads['subdir'];
|
|
return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $error_path ) );
|
|
}
|
|
|
|
// Set correct file permissions
|
|
$stat = stat( dirname( $new_file ));
|
|
$perms = $stat['mode'] & 0000666;
|
|
@ chmod( $new_file, $perms );
|
|
|
|
// Compute the URL
|
|
$url = $uploads['url'] . "/$filename";
|
|
|
|
$return = apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ), 'sideload' );
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Downloads a url to a local temporary file using the WordPress HTTP Class.
|
|
* Please note, That the calling function must unlink() the file.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $url the URL of the file to download
|
|
* @param int $timeout The timeout for the request to download the file default 300 seconds
|
|
* @return mixed WP_Error on failure, string Filename on success.
|
|
*/
|
|
function download_url( $url, $timeout = 300 ) {
|
|
//WARNING: The file is not automatically deleted, The script must unlink() the file.
|
|
if ( ! $url )
|
|
return new WP_Error('http_no_url', __('Invalid URL Provided.'));
|
|
|
|
$tmpfname = wp_tempnam($url);
|
|
if ( ! $tmpfname )
|
|
return new WP_Error('http_no_file', __('Could not create Temporary file.'));
|
|
|
|
$response = wp_safe_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname ) );
|
|
|
|
if ( is_wp_error( $response ) ) {
|
|
unlink( $tmpfname );
|
|
return $response;
|
|
}
|
|
|
|
if ( 200 != wp_remote_retrieve_response_code( $response ) ){
|
|
unlink( $tmpfname );
|
|
return new WP_Error( 'http_404', trim( wp_remote_retrieve_response_message( $response ) ) );
|
|
}
|
|
|
|
$content_md5 = wp_remote_retrieve_header( $response, 'content-md5' );
|
|
if ( $content_md5 ) {
|
|
$md5_check = verify_file_md5( $tmpfname, $content_md5 );
|
|
if ( is_wp_error( $md5_check ) ) {
|
|
unlink( $tmpfname );
|
|
return $md5_check;
|
|
}
|
|
}
|
|
|
|
return $tmpfname;
|
|
}
|
|
|
|
/**
|
|
* Calculates and compares the MD5 of a file to it's expected value.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @param string $filename The filename to check the MD5 of.
|
|
* @param string $expected_md5 The expected MD5 of the file, either a base64 encoded raw md5, or a hex-encoded md5
|
|
* @return bool|object WP_Error on failure, true on success, false when the MD5 format is unknown/unexpected
|
|
*/
|
|
function verify_file_md5( $filename, $expected_md5 ) {
|
|
if ( 32 == strlen( $expected_md5 ) )
|
|
$expected_raw_md5 = pack( 'H*', $expected_md5 );
|
|
elseif ( 24 == strlen( $expected_md5 ) )
|
|
$expected_raw_md5 = base64_decode( $expected_md5 );
|
|
else
|
|
return false; // unknown format
|
|
|
|
$file_md5 = md5_file( $filename, true );
|
|
|
|
if ( $file_md5 === $expected_raw_md5 )
|
|
return true;
|
|
|
|
return new WP_Error( 'md5_mismatch', sprintf( __( 'The checksum of the file (%1$s) does not match the expected checksum value (%2$s).' ), bin2hex( $file_md5 ), bin2hex( $expected_raw_md5 ) ) );
|
|
}
|
|
|
|
/**
|
|
* Unzips a specified ZIP file to a location on the Filesystem via the WordPress Filesystem Abstraction.
|
|
* Assumes that WP_Filesystem() has already been called and set up. Does not extract a root-level __MACOSX directory, if present.
|
|
*
|
|
* Attempts to increase the PHP Memory limit to 256M before uncompressing,
|
|
* However, The most memory required shouldn't be much larger than the Archive itself.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $file Full path and filename of zip archive
|
|
* @param string $to Full path on the filesystem to extract archive to
|
|
* @return mixed WP_Error on failure, True on success
|
|
*/
|
|
function unzip_file($file, $to) {
|
|
global $wp_filesystem;
|
|
|
|
if ( ! $wp_filesystem || !is_object($wp_filesystem) )
|
|
return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
|
|
|
|
// Unzip can use a lot of memory, but not this much hopefully
|
|
@ini_set( 'memory_limit', apply_filters( 'admin_memory_limit', WP_MAX_MEMORY_LIMIT ) );
|
|
|
|
$needed_dirs = array();
|
|
$to = trailingslashit($to);
|
|
|
|
// Determine any parent dir's needed (of the upgrade directory)
|
|
if ( ! $wp_filesystem->is_dir($to) ) { //Only do parents if no children exist
|
|
$path = preg_split('![/\\\]!', untrailingslashit($to));
|
|
for ( $i = count($path); $i >= 0; $i-- ) {
|
|
if ( empty($path[$i]) )
|
|
continue;
|
|
|
|
$dir = implode('/', array_slice($path, 0, $i+1) );
|
|
if ( preg_match('!^[a-z]:$!i', $dir) ) // Skip it if it looks like a Windows Drive letter.
|
|
continue;
|
|
|
|
if ( ! $wp_filesystem->is_dir($dir) )
|
|
$needed_dirs[] = $dir;
|
|
else
|
|
break; // A folder exists, therefor, we dont need the check the levels below this
|
|
}
|
|
}
|
|
|
|
if ( class_exists('ZipArchive') && apply_filters('unzip_file_use_ziparchive', true ) ) {
|
|
$result = _unzip_file_ziparchive($file, $to, $needed_dirs);
|
|
if ( true === $result ) {
|
|
return $result;
|
|
} elseif ( is_wp_error($result) ) {
|
|
if ( 'incompatible_archive' != $result->get_error_code() )
|
|
return $result;
|
|
}
|
|
}
|
|
// Fall through to PclZip if ZipArchive is not available, or encountered an error opening the file.
|
|
return _unzip_file_pclzip($file, $to, $needed_dirs);
|
|
}
|
|
|
|
/**
|
|
* This function should not be called directly, use unzip_file instead. Attempts to unzip an archive using the ZipArchive class.
|
|
* Assumes that WP_Filesystem() has already been called and set up.
|
|
*
|
|
* @since 3.0.0
|
|
* @see unzip_file
|
|
* @access private
|
|
*
|
|
* @param string $file Full path and filename of zip archive
|
|
* @param string $to Full path on the filesystem to extract archive to
|
|
* @param array $needed_dirs A partial list of required folders needed to be created.
|
|
* @return mixed WP_Error on failure, True on success
|
|
*/
|
|
function _unzip_file_ziparchive($file, $to, $needed_dirs = array() ) {
|
|
global $wp_filesystem;
|
|
|
|
$z = new ZipArchive();
|
|
|
|
$zopen = $z->open( $file, ZIPARCHIVE::CHECKCONS );
|
|
if ( true !== $zopen )
|
|
return new WP_Error( 'incompatible_archive', __( 'Incompatible Archive.' ), array( 'ziparchive_error' => $zopen ) );
|
|
|
|
$uncompressed_size = 0;
|
|
|
|
for ( $i = 0; $i < $z->numFiles; $i++ ) {
|
|
if ( ! $info = $z->statIndex($i) )
|
|
return new WP_Error( 'stat_failed_ziparchive', __( 'Could not retrieve file from archive.' ) );
|
|
|
|
if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Skip the OS X-created __MACOSX directory
|
|
continue;
|
|
|
|
$uncompressed_size += $info['size'];
|
|
|
|
if ( '/' == substr($info['name'], -1) ) // directory
|
|
$needed_dirs[] = $to . untrailingslashit($info['name']);
|
|
else
|
|
$needed_dirs[] = $to . untrailingslashit(dirname($info['name']));
|
|
}
|
|
|
|
/*
|
|
* disk_free_space() could return false. Assume that any falsey value is an error.
|
|
* A disk that has zero free bytes has bigger problems.
|
|
* Require we have enough space to unzip the file and copy its contents, with a 10% buffer.
|
|
*/
|
|
$available_space = disk_free_space( WP_CONTENT_DIR );
|
|
if ( $available_space && ( $uncompressed_size * 2.1 ) > $available_space )
|
|
return new WP_Error( 'disk_full_unzip_file', __( 'Could not copy files. You may have run out of disk space.' ), compact( 'uncompressed_size', 'available_space' ) );
|
|
|
|
$needed_dirs = array_unique($needed_dirs);
|
|
foreach ( $needed_dirs as $dir ) {
|
|
// Check the parent folders of the folders all exist within the creation array.
|
|
if ( untrailingslashit($to) == $dir ) // Skip over the working directory, We know this exists (or will exist)
|
|
continue;
|
|
if ( strpos($dir, $to) === false ) // If the directory is not within the working directory, Skip it
|
|
continue;
|
|
|
|
$parent_folder = dirname($dir);
|
|
while ( !empty($parent_folder) && untrailingslashit($to) != $parent_folder && !in_array($parent_folder, $needed_dirs) ) {
|
|
$needed_dirs[] = $parent_folder;
|
|
$parent_folder = dirname($parent_folder);
|
|
}
|
|
}
|
|
asort($needed_dirs);
|
|
|
|
// Create those directories if need be:
|
|
foreach ( $needed_dirs as $_dir ) {
|
|
if ( ! $wp_filesystem->mkdir($_dir, FS_CHMOD_DIR) && ! $wp_filesystem->is_dir($_dir) ) // Only check to see if the Dir exists upon creation failure. Less I/O this way.
|
|
return new WP_Error( 'mkdir_failed_ziparchive', __( 'Could not create directory.' ), substr( $_dir, strlen( $to ) ) );
|
|
}
|
|
unset($needed_dirs);
|
|
|
|
for ( $i = 0; $i < $z->numFiles; $i++ ) {
|
|
if ( ! $info = $z->statIndex($i) )
|
|
return new WP_Error( 'stat_failed_ziparchive', __( 'Could not retrieve file from archive.' ) );
|
|
|
|
if ( '/' == substr($info['name'], -1) ) // directory
|
|
continue;
|
|
|
|
if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files
|
|
continue;
|
|
|
|
$contents = $z->getFromIndex($i);
|
|
if ( false === $contents )
|
|
return new WP_Error( 'extract_failed_ziparchive', __( 'Could not extract file from archive.' ), $info['name'] );
|
|
|
|
if ( ! $wp_filesystem->put_contents( $to . $info['name'], $contents, FS_CHMOD_FILE) )
|
|
return new WP_Error( 'copy_failed_ziparchive', __( 'Could not copy file.' ), $info['name'] );
|
|
}
|
|
|
|
$z->close();
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* This function should not be called directly, use unzip_file instead. Attempts to unzip an archive using the PclZip library.
|
|
* Assumes that WP_Filesystem() has already been called and set up.
|
|
*
|
|
* @since 3.0.0
|
|
* @see unzip_file
|
|
* @access private
|
|
*
|
|
* @param string $file Full path and filename of zip archive
|
|
* @param string $to Full path on the filesystem to extract archive to
|
|
* @param array $needed_dirs A partial list of required folders needed to be created.
|
|
* @return mixed WP_Error on failure, True on success
|
|
*/
|
|
function _unzip_file_pclzip($file, $to, $needed_dirs = array()) {
|
|
global $wp_filesystem;
|
|
|
|
mbstring_binary_safe_encoding();
|
|
|
|
require_once(ABSPATH . 'wp-admin/includes/class-pclzip.php');
|
|
|
|
$archive = new PclZip($file);
|
|
|
|
$archive_files = $archive->extract(PCLZIP_OPT_EXTRACT_AS_STRING);
|
|
|
|
reset_mbstring_encoding();
|
|
|
|
// Is the archive valid?
|
|
if ( !is_array($archive_files) )
|
|
return new WP_Error('incompatible_archive', __('Incompatible Archive.'), $archive->errorInfo(true));
|
|
|
|
if ( 0 == count($archive_files) )
|
|
return new WP_Error( 'empty_archive_pclzip', __( 'Empty archive.' ) );
|
|
|
|
$uncompressed_size = 0;
|
|
|
|
// Determine any children directories needed (From within the archive)
|
|
foreach ( $archive_files as $file ) {
|
|
if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Skip the OS X-created __MACOSX directory
|
|
continue;
|
|
|
|
$uncompressed_size += $file['size'];
|
|
|
|
$needed_dirs[] = $to . untrailingslashit( $file['folder'] ? $file['filename'] : dirname($file['filename']) );
|
|
}
|
|
|
|
/*
|
|
* disk_free_space() could return false. Assume that any falsey value is an error.
|
|
* A disk that has zero free bytes has bigger problems.
|
|
* Require we have enough space to unzip the file and copy its contents, with a 10% buffer.
|
|
*/
|
|
$available_space = disk_free_space( WP_CONTENT_DIR );
|
|
if ( $available_space && ( $uncompressed_size * 2.1 ) > $available_space )
|
|
return new WP_Error( 'disk_full_unzip_file', __( 'Could not copy files. You may have run out of disk space.' ), compact( 'uncompressed_size', 'available_space' ) );
|
|
|
|
$needed_dirs = array_unique($needed_dirs);
|
|
foreach ( $needed_dirs as $dir ) {
|
|
// Check the parent folders of the folders all exist within the creation array.
|
|
if ( untrailingslashit($to) == $dir ) // Skip over the working directory, We know this exists (or will exist)
|
|
continue;
|
|
if ( strpos($dir, $to) === false ) // If the directory is not within the working directory, Skip it
|
|
continue;
|
|
|
|
$parent_folder = dirname($dir);
|
|
while ( !empty($parent_folder) && untrailingslashit($to) != $parent_folder && !in_array($parent_folder, $needed_dirs) ) {
|
|
$needed_dirs[] = $parent_folder;
|
|
$parent_folder = dirname($parent_folder);
|
|
}
|
|
}
|
|
asort($needed_dirs);
|
|
|
|
// Create those directories if need be:
|
|
foreach ( $needed_dirs as $_dir ) {
|
|
// Only check to see if the dir exists upon creation failure. Less I/O this way.
|
|
if ( ! $wp_filesystem->mkdir( $_dir, FS_CHMOD_DIR ) && ! $wp_filesystem->is_dir( $_dir ) )
|
|
return new WP_Error( 'mkdir_failed_pclzip', __( 'Could not create directory.' ), substr( $_dir, strlen( $to ) ) );
|
|
}
|
|
unset($needed_dirs);
|
|
|
|
// Extract the files from the zip
|
|
foreach ( $archive_files as $file ) {
|
|
if ( $file['folder'] )
|
|
continue;
|
|
|
|
if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files
|
|
continue;
|
|
|
|
if ( ! $wp_filesystem->put_contents( $to . $file['filename'], $file['content'], FS_CHMOD_FILE) )
|
|
return new WP_Error( 'copy_failed_pclzip', __( 'Could not copy file.' ), $file['filename'] );
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Copies a directory from one location to another via the WordPress Filesystem Abstraction.
|
|
* Assumes that WP_Filesystem() has already been called and setup.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $from source directory
|
|
* @param string $to destination directory
|
|
* @param array $skip_list a list of files/folders to skip copying
|
|
* @return mixed WP_Error on failure, True on success.
|
|
*/
|
|
function copy_dir($from, $to, $skip_list = array() ) {
|
|
global $wp_filesystem;
|
|
|
|
$dirlist = $wp_filesystem->dirlist($from);
|
|
|
|
$from = trailingslashit($from);
|
|
$to = trailingslashit($to);
|
|
|
|
foreach ( (array) $dirlist as $filename => $fileinfo ) {
|
|
if ( in_array( $filename, $skip_list ) )
|
|
continue;
|
|
|
|
if ( 'f' == $fileinfo['type'] ) {
|
|
if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) {
|
|
// If copy failed, chmod file to 0644 and try again.
|
|
$wp_filesystem->chmod( $to . $filename, FS_CHMOD_FILE );
|
|
if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) )
|
|
return new WP_Error( 'copy_failed_copy_dir', __( 'Could not copy file.' ), $to . $filename );
|
|
}
|
|
} elseif ( 'd' == $fileinfo['type'] ) {
|
|
if ( !$wp_filesystem->is_dir($to . $filename) ) {
|
|
if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) )
|
|
return new WP_Error( 'mkdir_failed_copy_dir', __( 'Could not create directory.' ), $to . $filename );
|
|
}
|
|
|
|
// generate the $sub_skip_list for the subdirectory as a sub-set of the existing $skip_list
|
|
$sub_skip_list = array();
|
|
foreach ( $skip_list as $skip_item ) {
|
|
if ( 0 === strpos( $skip_item, $filename . '/' ) )
|
|
$sub_skip_list[] = preg_replace( '!^' . preg_quote( $filename, '!' ) . '/!i', '', $skip_item );
|
|
}
|
|
|
|
$result = copy_dir($from . $filename, $to . $filename, $sub_skip_list);
|
|
if ( is_wp_error($result) )
|
|
return $result;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Initialises and connects the WordPress Filesystem Abstraction classes.
|
|
* This function will include the chosen transport and attempt connecting.
|
|
*
|
|
* Plugins may add extra transports, And force WordPress to use them by returning the filename via the 'filesystem_method_file' filter.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param array $args (optional) Connection args, These are passed directly to the WP_Filesystem_*() classes.
|
|
* @param string $context (optional) Context for get_filesystem_method(), See function declaration for more information.
|
|
* @return boolean false on failure, true on success
|
|
*/
|
|
function WP_Filesystem( $args = false, $context = false ) {
|
|
global $wp_filesystem;
|
|
|
|
require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php');
|
|
|
|
$method = get_filesystem_method($args, $context);
|
|
|
|
if ( ! $method )
|
|
return false;
|
|
|
|
if ( ! class_exists("WP_Filesystem_$method") ) {
|
|
$abstraction_file = apply_filters('filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method);
|
|
if ( ! file_exists($abstraction_file) )
|
|
return;
|
|
|
|
require_once($abstraction_file);
|
|
}
|
|
$method = "WP_Filesystem_$method";
|
|
|
|
$wp_filesystem = new $method($args);
|
|
|
|
//Define the timeouts for the connections. Only available after the construct is called to allow for per-transport overriding of the default.
|
|
if ( ! defined('FS_CONNECT_TIMEOUT') )
|
|
define('FS_CONNECT_TIMEOUT', 30);
|
|
if ( ! defined('FS_TIMEOUT') )
|
|
define('FS_TIMEOUT', 30);
|
|
|
|
if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
|
|
return false;
|
|
|
|
if ( !$wp_filesystem->connect() )
|
|
return false; //There was an error connecting to the server.
|
|
|
|
// Set the permission constants if not already set.
|
|
if ( ! defined('FS_CHMOD_DIR') )
|
|
define('FS_CHMOD_DIR', ( fileperms( ABSPATH ) & 0777 | 0755 ) );
|
|
if ( ! defined('FS_CHMOD_FILE') )
|
|
define('FS_CHMOD_FILE', ( fileperms( ABSPATH . 'index.php' ) & 0777 | 0644 ) );
|
|
|
|
return true;
|
|
}
|
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/**
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* Determines which Filesystem Method to use.
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* The priority of the Transports are: Direct, SSH2, FTP PHP Extension, FTP Sockets (Via Sockets class, or fsockopen())
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*
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* Note that the return value of this function can be overridden in 2 ways
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* - By defining FS_METHOD in your <code>wp-config.php</code> file
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* - By using the filesystem_method filter
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* Valid values for these are: 'direct', 'ssh', 'ftpext' or 'ftpsockets'
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* Plugins may also define a custom transport handler, See the WP_Filesystem function for more information.
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*
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* @since 2.5.0
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*
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* @param array $args Connection details.
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* @param string $context Full path to the directory that is tested for being writable.
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* @return string The transport to use, see description for valid return values.
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*/
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function get_filesystem_method($args = array(), $context = false) {
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$method = defined('FS_METHOD') ? FS_METHOD : false; //Please ensure that this is either 'direct', 'ssh', 'ftpext' or 'ftpsockets'
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if ( ! $method && function_exists('getmyuid') && function_exists('fileowner') ){
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if ( !$context )
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$context = WP_CONTENT_DIR;
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$context = trailingslashit($context);
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$temp_file_name = $context . 'temp-write-test-' . time();
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$temp_handle = @fopen($temp_file_name, 'w');
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if ( $temp_handle ) {
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if ( getmyuid() == @fileowner($temp_file_name) )
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$method = 'direct';
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@fclose($temp_handle);
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@unlink($temp_file_name);
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}
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}
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if ( ! $method && isset($args['connection_type']) && 'ssh' == $args['connection_type'] && extension_loaded('ssh2') && function_exists('stream_get_contents') ) $method = 'ssh2';
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if ( ! $method && extension_loaded('ftp') ) $method = 'ftpext';
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if ( ! $method && ( extension_loaded('sockets') || function_exists('fsockopen') ) ) $method = 'ftpsockets'; //Sockets: Socket extension; PHP Mode: FSockopen / fwrite / fread
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return apply_filters('filesystem_method', $method, $args);
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}
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/**
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* Displays a form to the user to request for their FTP/SSH details in order to connect to the filesystem.
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* All chosen/entered details are saved, Excluding the Password.
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*
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* Hostnames may be in the form of hostname:portnumber (eg: wordpress.org:2467) to specify an alternate FTP/SSH port.
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*
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* Plugins may override this form by returning true|false via the <code>request_filesystem_credentials</code> filter.
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*
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* @since 2.5.0
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*
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* @param string $form_post the URL to post the form to
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* @param string $type the chosen Filesystem method in use
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* @param boolean $error if the current request has failed to connect
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* @param string $context The directory which is needed access to, The write-test will be performed on this directory by get_filesystem_method()
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* @param string $extra_fields Extra POST fields which should be checked for to be included in the post.
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* @return boolean False on failure. True on success.
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*/
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function request_filesystem_credentials($form_post, $type = '', $error = false, $context = false, $extra_fields = null) {
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$req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields );
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if ( '' !== $req_cred )
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return $req_cred;
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if ( empty($type) )
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$type = get_filesystem_method(array(), $context);
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if ( 'direct' == $type )
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return true;
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if ( is_null( $extra_fields ) )
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$extra_fields = array( 'version', 'locale' );
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$credentials = get_option('ftp_credentials', array( 'hostname' => '', 'username' => ''));
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// If defined, set it to that, Else, If POST'd, set it to that, If not, Set it to whatever it previously was(saved details in option)
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$credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($_POST['hostname']) ? wp_unslash( $_POST['hostname'] ) : $credentials['hostname']);
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$credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($_POST['username']) ? wp_unslash( $_POST['username'] ) : $credentials['username']);
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$credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($_POST['password']) ? wp_unslash( $_POST['password'] ) : '');
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// Check to see if we are setting the public/private keys for ssh
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$credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($_POST['public_key']) ? wp_unslash( $_POST['public_key'] ) : '');
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$credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($_POST['private_key']) ? wp_unslash( $_POST['private_key'] ) : '');
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//sanitize the hostname, Some people might pass in odd-data:
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$credentials['hostname'] = preg_replace('|\w+://|', '', $credentials['hostname']); //Strip any schemes off
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if ( strpos($credentials['hostname'], ':') ) {
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list( $credentials['hostname'], $credentials['port'] ) = explode(':', $credentials['hostname'], 2);
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if ( ! is_numeric($credentials['port']) )
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unset($credentials['port']);
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} else {
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unset($credentials['port']);
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}
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if ( (defined('FTP_SSH') && FTP_SSH) || (defined('FS_METHOD') && 'ssh' == FS_METHOD) )
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$credentials['connection_type'] = 'ssh';
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else if ( (defined('FTP_SSL') && FTP_SSL) && 'ftpext' == $type ) //Only the FTP Extension understands SSL
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$credentials['connection_type'] = 'ftps';
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else if ( !empty($_POST['connection_type']) )
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$credentials['connection_type'] = wp_unslash( $_POST['connection_type'] );
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else if ( !isset($credentials['connection_type']) ) //All else fails (And it's not defaulted to something else saved), Default to FTP
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$credentials['connection_type'] = 'ftp';
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if ( ! $error &&
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(
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( !empty($credentials['password']) && !empty($credentials['username']) && !empty($credentials['hostname']) ) ||
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( 'ssh' == $credentials['connection_type'] && !empty($credentials['public_key']) && !empty($credentials['private_key']) )
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) ) {
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$stored_credentials = $credentials;
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if ( !empty($stored_credentials['port']) ) //save port as part of hostname to simplify above code.
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$stored_credentials['hostname'] .= ':' . $stored_credentials['port'];
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unset($stored_credentials['password'], $stored_credentials['port'], $stored_credentials['private_key'], $stored_credentials['public_key']);
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update_option('ftp_credentials', $stored_credentials);
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return $credentials;
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}
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$hostname = '';
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$username = '';
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$password = '';
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$connection_type = '';
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if ( !empty($credentials) )
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extract($credentials, EXTR_OVERWRITE);
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if ( $error ) {
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$error_string = __('<strong>ERROR:</strong> There was an error connecting to the server, Please verify the settings are correct.');
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if ( is_wp_error($error) )
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$error_string = esc_html( $error->get_error_message() );
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echo '<div id="message" class="error"><p>' . $error_string . '</p></div>';
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}
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$types = array();
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if ( extension_loaded('ftp') || extension_loaded('sockets') || function_exists('fsockopen') )
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$types[ 'ftp' ] = __('FTP');
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if ( extension_loaded('ftp') ) //Only this supports FTPS
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$types[ 'ftps' ] = __('FTPS (SSL)');
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if ( extension_loaded('ssh2') && function_exists('stream_get_contents') )
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$types[ 'ssh' ] = __('SSH2');
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$types = apply_filters('fs_ftp_connection_types', $types, $credentials, $type, $error, $context);
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?>
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<script type="text/javascript">
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<!--
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jQuery(function($){
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jQuery("#ssh").click(function () {
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jQuery("#ssh_keys").show();
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});
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jQuery("#ftp, #ftps").click(function () {
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jQuery("#ssh_keys").hide();
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});
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jQuery('form input[value=""]:first').focus();
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});
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-->
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</script>
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<form action="<?php echo esc_url( $form_post ) ?>" method="post">
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<div class="wrap">
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<?php screen_icon(); ?>
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<h2><?php _e('Connection Information') ?></h2>
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<p><?php
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$label_user = __('Username');
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$label_pass = __('Password');
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_e('To perform the requested action, WordPress needs to access your web server.');
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echo ' ';
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if ( ( isset( $types['ftp'] ) || isset( $types['ftps'] ) ) ) {
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if ( isset( $types['ssh'] ) ) {
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_e('Please enter your FTP or SSH credentials to proceed.');
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$label_user = __('FTP/SSH Username');
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$label_pass = __('FTP/SSH Password');
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} else {
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_e('Please enter your FTP credentials to proceed.');
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$label_user = __('FTP Username');
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$label_pass = __('FTP Password');
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}
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echo ' ';
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}
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_e('If you do not remember your credentials, you should contact your web host.');
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?></p>
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<table class="form-table">
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<tr valign="top">
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<th scope="row"><label for="hostname"><?php _e('Hostname') ?></label></th>
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<td><input name="hostname" type="text" id="hostname" value="<?php echo esc_attr($hostname); if ( !empty($port) ) echo ":$port"; ?>"<?php disabled( defined('FTP_HOST') ); ?> size="40" /></td>
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</tr>
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<tr valign="top">
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<th scope="row"><label for="username"><?php echo $label_user; ?></label></th>
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<td><input name="username" type="text" id="username" value="<?php echo esc_attr($username) ?>"<?php disabled( defined('FTP_USER') ); ?> size="40" /></td>
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</tr>
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<tr valign="top">
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<th scope="row"><label for="password"><?php echo $label_pass; ?></label></th>
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<td><div><input name="password" type="password" id="password" value="<?php if ( defined('FTP_PASS') ) echo '*****'; ?>"<?php disabled( defined('FTP_PASS') ); ?> size="40" /></div>
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<div><em><?php if ( ! defined('FTP_PASS') ) _e( 'This password will not be stored on the server.' ); ?></em></div></td>
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</tr>
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<?php if ( isset($types['ssh']) ) : ?>
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<tr id="ssh_keys" valign="top" style="<?php if ( 'ssh' != $connection_type ) echo 'display:none' ?>">
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<th scope="row"><?php _e('Authentication Keys') ?>
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<div class="key-labels textright">
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<label for="public_key"><?php _e('Public Key:') ?></label ><br />
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<label for="private_key"><?php _e('Private Key:') ?></label>
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</div></th>
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<td><br /><input name="public_key" type="text" id="public_key" value="<?php echo esc_attr($public_key) ?>"<?php disabled( defined('FTP_PUBKEY') ); ?> size="40" /><br /><input name="private_key" type="text" id="private_key" value="<?php echo esc_attr($private_key) ?>"<?php disabled( defined('FTP_PRIKEY') ); ?> size="40" />
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<div><?php _e('Enter the location on the server where the keys are located. If a passphrase is needed, enter that in the password field above.') ?></div></td>
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</tr>
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<?php endif; ?>
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<tr valign="top">
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<th scope="row"><?php _e('Connection Type') ?></th>
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<td>
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<fieldset><legend class="screen-reader-text"><span><?php _e('Connection Type') ?></span></legend>
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<?php
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$disabled = disabled( (defined('FTP_SSL') && FTP_SSL) || (defined('FTP_SSH') && FTP_SSH), true, false );
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foreach ( $types as $name => $text ) : ?>
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<label for="<?php echo esc_attr($name) ?>">
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<input type="radio" name="connection_type" id="<?php echo esc_attr($name) ?>" value="<?php echo esc_attr($name) ?>"<?php checked($name, $connection_type); echo $disabled; ?> />
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<?php echo $text ?>
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</label>
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<?php endforeach; ?>
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</fieldset>
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</td>
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</tr>
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</table>
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<?php
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foreach ( (array) $extra_fields as $field ) {
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if ( isset( $_POST[ $field ] ) )
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echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( wp_unslash( $_POST[ $field ] ) ) . '" />';
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}
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submit_button( __( 'Proceed' ), 'button', 'upgrade' );
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?>
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</div>
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</form>
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<?php
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return false;
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}
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