| 1 | <?php |
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| 2 | /** |
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| 3 | * Functions for reading, writing, modifying, and deleting files on the file system. |
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| 4 | * Includes functionality for theme-specific files as well as operations for uploading, |
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| 5 | * archiving, and rendering output when necessary. |
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| 6 | * |
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| 7 | * @package WordPress |
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| 8 | * @subpackage Administration |
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| 9 | */ |
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| 10 | |
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| 11 | /** The descriptions for theme files. */ |
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| 12 | $wp_file_descriptions = array( |
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| 13 | 'index.php' => __( 'Main Index Template' ), |
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| 14 | 'style.css' => __( 'Stylesheet' ), |
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| 15 | 'editor-style.css' => __( 'Visual Editor Stylesheet' ), |
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| 16 | 'editor-style-rtl.css' => __( 'Visual Editor RTL Stylesheet' ), |
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| 17 | 'rtl.css' => __( 'RTL Stylesheet' ), |
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| 18 | 'comments.php' => __( 'Comments' ), |
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| 19 | 'comments-popup.php' => __( 'Popup Comments' ), |
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| 20 | 'footer.php' => __( 'Footer' ), |
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| 21 | 'header.php' => __( 'Header' ), |
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| 22 | 'sidebar.php' => __( 'Sidebar' ), |
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| 23 | 'archive.php' => __( 'Archives' ), |
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| 24 | 'author.php' => __( 'Author Template' ), |
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| 25 | 'tag.php' => __( 'Tag Template' ), |
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| 26 | 'category.php' => __( 'Category Template' ), |
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| 27 | 'page.php' => __( 'Page Template' ), |
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| 28 | 'search.php' => __( 'Search Results' ), |
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| 29 | 'searchform.php' => __( 'Search Form' ), |
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| 30 | 'single.php' => __( 'Single Post' ), |
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| 31 | '404.php' => __( '404 Template' ), |
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| 32 | 'link.php' => __( 'Links Template' ), |
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| 33 | 'functions.php' => __( 'Theme Functions' ), |
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| 34 | 'attachment.php' => __( 'Attachment Template' ), |
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| 35 | 'image.php' => __('Image Attachment Template'), |
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| 36 | 'video.php' => __('Video Attachment Template'), |
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| 37 | 'audio.php' => __('Audio Attachment Template'), |
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| 38 | 'application.php' => __('Application Attachment Template'), |
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| 39 | 'my-hacks.php' => __( 'my-hacks.php (legacy hacks support)' ), |
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| 40 | '.htaccess' => __( '.htaccess (for rewrite rules )' ), |
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| 41 | // Deprecated files |
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| 42 | 'wp-layout.css' => __( 'Stylesheet' ), |
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| 43 | 'wp-comments.php' => __( 'Comments Template' ), |
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| 44 | 'wp-comments-popup.php' => __( 'Popup Comments Template' ), |
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| 45 | ); |
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| 46 | |
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| 47 | /** |
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| 48 | * Get the description for standard WordPress theme files and other various standard |
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| 49 | * WordPress files |
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| 50 | * |
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| 51 | * @since 1.5.0 |
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| 52 | * |
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| 53 | * @uses $wp_file_descriptions |
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| 54 | * @param string $file Filesystem path or filename |
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| 55 | * @return string Description of file from $wp_file_descriptions or basename of $file if description doesn't exist |
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| 56 | */ |
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| 57 | function get_file_description( $file ) { |
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| 58 | global $wp_file_descriptions; |
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| 59 | |
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| 60 | if ( isset( $wp_file_descriptions[basename( $file )] ) and dirname($file)==get_template_directory() ) { |
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| 61 | return $wp_file_descriptions[basename( $file )]; |
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| 62 | } |
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| 63 | elseif ( file_exists( $file ) && is_file( $file ) ) { |
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| 64 | $template_data = implode( '', file( $file ) ); |
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| 65 | if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name )) |
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| 66 | return sprintf( __( '%s Page Template' ), _cleanup_header_comment($name[1]) ); |
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| 67 | } |
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| 68 | |
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| 69 | return trim( basename( $file ) ); |
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| 70 | } |
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| 71 | |
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| 72 | /** |
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| 73 | * Get the absolute filesystem path to the root of the WordPress installation |
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| 74 | * |
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| 75 | * @since 1.5.0 |
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| 76 | * |
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| 77 | * @return string Full filesystem path to the root of the WordPress installation |
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| 78 | */ |
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| 79 | function get_home_path() { |
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| 80 | $home = set_url_scheme( get_option( 'home' ), 'http' ); |
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| 81 | $siteurl = set_url_scheme( get_option( 'siteurl' ), 'http' ); |
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| 82 | if ( ! empty( $home ) && 0 !== strcasecmp( $home, $siteurl ) ) { |
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| 83 | $wp_path_rel_to_home = str_ireplace( $home, '', $siteurl ); /* $siteurl - $home */ |
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| 84 | $pos = strripos( str_replace( '\\', '/', $_SERVER['SCRIPT_FILENAME'] ), trailingslashit( $wp_path_rel_to_home ) ); |
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| 85 | $home_path = substr( $_SERVER['SCRIPT_FILENAME'], 0, $pos ); |
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| 86 | $home_path = trailingslashit( $home_path ); |
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| 87 | } else { |
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| 88 | $home_path = ABSPATH; |
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| 89 | } |
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| 90 | |
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| 91 | return str_replace( '\\', '/', $home_path ); |
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| 92 | } |
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| 93 | |
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| 94 | /** |
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| 95 | * Returns a listing of all files in the specified folder and all subdirectories up to 100 levels deep. |
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| 96 | * The depth of the recursiveness can be controlled by the $levels param. |
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| 97 | * |
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| 98 | * @since 2.6.0 |
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| 99 | * |
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| 100 | * @param string $folder Optional. Full path to folder. Default empty. |
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| 101 | * @param int $levels Optional. Levels of folders to follow, Default 100 (PHP Loop limit). |
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| 102 | * @return bool|array False on failure, Else array of files |
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| 103 | */ |
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| 104 | function list_files( $folder = '', $levels = 100 ) { |
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| 105 | if ( empty($folder) ) |
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| 106 | return false; |
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| 107 | |
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| 108 | if ( ! $levels ) |
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| 109 | return false; |
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| 110 | |
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| 111 | $files = array(); |
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| 112 | if ( $dir = @opendir( $folder ) ) { |
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| 113 | while (($file = readdir( $dir ) ) !== false ) { |
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| 114 | if ( in_array($file, array('.', '..') ) ) |
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| 115 | continue; |
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| 116 | if ( is_dir( $folder . '/' . $file ) ) { |
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| 117 | $files2 = list_files( $folder . '/' . $file, $levels - 1); |
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| 118 | if ( $files2 ) |
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| 119 | $files = array_merge($files, $files2 ); |
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| 120 | else |
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| 121 | $files[] = $folder . '/' . $file . '/'; |
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| 122 | } else { |
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| 123 | $files[] = $folder . '/' . $file; |
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| 124 | } |
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| 125 | } |
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| 126 | } |
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| 127 | @closedir( $dir ); |
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| 128 | return $files; |
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| 129 | } |
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| 130 | |
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| 131 | /** |
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| 132 | * Returns a filename of a Temporary unique file. |
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| 133 | * Please note that the calling function must unlink() this itself. |
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| 134 | * |
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| 135 | * The filename is based off the passed parameter or defaults to the current unix timestamp, |
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| 136 | * while the directory can either be passed as well, or by leaving it blank, default to a writable temporary directory. |
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| 137 | * |
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| 138 | * @since 2.6.0 |
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| 139 | * |
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| 140 | * @param string $filename Optional. Filename to base the Unique file off. Default empty. |
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| 141 | * @param string $dir Optional. Directory to store the file in. Default empty. |
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| 142 | * @return string a writable filename |
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| 143 | */ |
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| 144 | function wp_tempnam($filename = '', $dir = '') { |
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| 145 | if ( empty($dir) ) |
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| 146 | $dir = get_temp_dir(); |
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| 147 | $filename = basename($filename); |
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| 148 | if ( empty($filename) ) |
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| 149 | $filename = time(); |
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| 150 | |
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| 151 | $filename = preg_replace('|\..*$|', '.tmp', $filename); |
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| 152 | $filename = $dir . wp_unique_filename($dir, $filename); |
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| 153 | touch($filename); |
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| 154 | return $filename; |
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| 155 | } |
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| 156 | |
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| 157 | /** |
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| 158 | * Make sure that the file that was requested to edit, is allowed to be edited |
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| 159 | * |
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| 160 | * Function will die if if you are not allowed to edit the file |
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| 161 | * |
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| 162 | * @since 1.5.0 |
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| 163 | * |
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| 164 | * @param string $file file the users is attempting to edit |
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| 165 | * @param array $allowed_files Array of allowed files to edit, $file must match an entry exactly |
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| 166 | * @return string|null |
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| 167 | */ |
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| 168 | function validate_file_to_edit( $file, $allowed_files = '' ) { |
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| 169 | $code = validate_file( $file, $allowed_files ); |
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| 170 | |
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| 171 | if (!$code ) |
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| 172 | return $file; |
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| 173 | |
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| 174 | switch ( $code ) { |
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| 175 | case 1 : |
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| 176 | wp_die( __( 'Sorry, that file cannot be edited.' ) ); |
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| 177 | |
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| 178 | // case 2 : |
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| 179 | // wp_die( __('Sorry, can’t call files with their real path.' )); |
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| 180 | |
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| 181 | case 3 : |
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| 182 | wp_die( __( 'Sorry, that file cannot be edited.' ) ); |
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| 183 | } |
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| 184 | } |
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| 185 | |
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| 186 | /** |
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| 187 | * Handle PHP uploads in WordPress, sanitizing file names, checking extensions for mime type, |
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| 188 | * and moving the file to the appropriate directory within the uploads directory. |
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| 189 | * |
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| 190 | * @since 4.0.0 |
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| 191 | * |
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| 192 | * @see wp_handle_upload_error |
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| 193 | * |
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| 194 | * @param array $file Reference to a single element of $_FILES. Call the function once for |
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| 195 | * each uploaded file. |
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| 196 | * @param array $overrides An associative array of names => values to override default variables. |
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| 197 | * @param string $time Time formatted in 'yyyy/mm'. |
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| 198 | * @param string $action Expected value for $_POST['action']. |
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| 199 | * @return array On success, returns an associative array of file attributes. On failure, returns |
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| 200 | * $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ). |
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| 201 | */ |
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| 202 | function _wp_handle_upload( &$file, $overrides, $time, $action ) { |
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| 203 | // The default error handler. |
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| 204 | if ( ! function_exists( 'wp_handle_upload_error' ) ) { |
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| 205 | function wp_handle_upload_error( &$file, $message ) { |
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| 206 | return array( 'error' => $message ); |
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| 207 | } |
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| 208 | } |
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| 209 | |
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| 210 | /** |
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| 211 | * Filter the data for a file before it is uploaded to WordPress. |
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| 212 | * |
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| 213 | * The dynamic portion of the hook name, `$action`, refers to the post action. |
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| 214 | * |
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| 215 | * @since 2.9.0 as 'wp_handle_upload_prefilter'. |
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| 216 | * @since 4.0.0 Converted to a dynamic hook with `$action`. |
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| 217 | * |
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| 218 | * @param array $file An array of data for a single file. |
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| 219 | */ |
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| 220 | $file = apply_filters( "{$action}_prefilter", $file ); |
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| 221 | |
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| 222 | // You may define your own function and pass the name in $overrides['upload_error_handler'] |
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| 223 | $upload_error_handler = 'wp_handle_upload_error'; |
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| 224 | if ( isset( $overrides['upload_error_handler'] ) ) { |
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| 225 | $upload_error_handler = $overrides['upload_error_handler']; |
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| 226 | } |
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| 227 | |
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| 228 | // You may have had one or more 'wp_handle_upload_prefilter' functions error out the file. Handle that gracefully. |
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| 229 | if ( isset( $file['error'] ) && ! is_numeric( $file['error'] ) && $file['error'] ) { |
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| 230 | return $upload_error_handler( $file, $file['error'] ); |
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| 231 | } |
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| 232 | |
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| 233 | // Install user overrides. Did we mention that this voids your warranty? |
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| 234 | |
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| 235 | // You may define your own function and pass the name in $overrides['unique_filename_callback'] |
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| 236 | $unique_filename_callback = null; |
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| 237 | if ( isset( $overrides['unique_filename_callback'] ) ) { |
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| 238 | $unique_filename_callback = $overrides['unique_filename_callback']; |
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| 239 | } |
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| 240 | |
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| 241 | /* |
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| 242 | * This may not have orignially been intended to be overrideable, |
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| 243 | * but historically has been. |
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| 244 | */ |
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| 245 | if ( isset( $overrides['upload_error_strings'] ) ) { |
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| 246 | $upload_error_strings = $overrides['upload_error_strings']; |
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| 247 | } else { |
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| 248 | // Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error']. |
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| 249 | $upload_error_strings = array( |
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| 250 | false, |
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| 251 | __( 'The uploaded file exceeds the upload_max_filesize directive in php.ini.' ), |
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| 252 | __( 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.' ), |
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| 253 | __( 'The uploaded file was only partially uploaded.' ), |
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| 254 | __( 'No file was uploaded.' ), |
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| 255 | '', |
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| 256 | __( 'Missing a temporary folder.' ), |
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| 257 | __( 'Failed to write file to disk.' ), |
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| 258 | __( 'File upload stopped by extension.' ) |
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| 259 | ); |
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| 260 | } |
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| 261 | |
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| 262 | // All tests are on by default. Most can be turned off by $overrides[{test_name}] = false; |
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| 263 | $test_form = isset( $overrides['test_form'] ) ? $overrides['test_form'] : true; |
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| 264 | $test_size = isset( $overrides['test_size'] ) ? $overrides['test_size'] : true; |
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| 265 | |
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| 266 | // If you override this, you must provide $ext and $type!! |
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| 267 | $test_type = isset( $overrides['test_type'] ) ? $overrides['test_type'] : true; |
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| 268 | $mimes = isset( $overrides['mimes'] ) ? $overrides['mimes'] : false; |
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| 269 | |
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| 270 | // A correct form post will pass this test. |
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| 271 | if ( $test_form && ( ! isset( $_POST['action'] ) || ( $_POST['action'] != $action ) ) ) { |
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| 272 | return call_user_func( $upload_error_handler, $file, __( 'Invalid form submission.' ) ); |
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| 273 | } |
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| 274 | // A successful upload will pass this test. It makes no sense to override this one. |
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| 275 | if ( isset( $file['error'] ) && $file['error'] > 0 ) { |
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| 276 | return call_user_func( $upload_error_handler, $file, $upload_error_strings[ $file['error'] ] ); |
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| 277 | } |
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| 278 | |
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| 279 | $test_file_size = 'wp_handle_upload' === $action ? $file['size'] : filesize( $file['tmp_name'] ); |
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| 280 | // A non-empty file will pass this test. |
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| 281 | if ( $test_size && ! ( $test_file_size > 0 ) ) { |
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| 282 | if ( is_multisite() ) { |
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| 283 | $error_msg = __( 'File is empty. Please upload something more substantial.' ); |
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| 284 | } else { |
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| 285 | $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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| 286 | } |
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| 287 | return call_user_func( $upload_error_handler, $file, $error_msg ); |
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| 288 | } |
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| 289 | |
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| 290 | // A properly uploaded file will pass this test. There should be no reason to override this one. |
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| 291 | $test_uploaded_file = 'wp_handle_upload' === $action ? @ is_uploaded_file( $file['tmp_name'] ) : @ is_file( $file['tmp_name'] ); |
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| 292 | if ( ! $test_uploaded_file ) { |
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| 293 | return call_user_func( $upload_error_handler, $file, __( 'Specified file failed upload test.' ) ); |
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| 294 | } |
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| 295 | |
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| 296 | // A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter. |
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| 297 | if ( $test_type ) { |
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| 298 | $wp_filetype = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], $mimes ); |
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| 299 | $ext = empty( $wp_filetype['ext'] ) ? '' : $wp_filetype['ext']; |
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| 300 | $type = empty( $wp_filetype['type'] ) ? '' : $wp_filetype['type']; |
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| 301 | $proper_filename = empty( $wp_filetype['proper_filename'] ) ? '' : $wp_filetype['proper_filename']; |
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| 302 | |
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| 303 | // Check to see if wp_check_filetype_and_ext() determined the filename was incorrect |
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| 304 | if ( $proper_filename ) { |
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| 305 | $file['name'] = $proper_filename; |
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| 306 | } |
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| 307 | if ( ( ! $type || !$ext ) && ! current_user_can( 'unfiltered_upload' ) ) { |
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| 308 | return call_user_func( $upload_error_handler, $file, __( 'Sorry, this file type is not permitted for security reasons.' ) ); |
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| 309 | } |
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| 310 | if ( ! $type ) { |
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| 311 | $type = $file['type']; |
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| 312 | } |
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| 313 | } else { |
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| 314 | $type = ''; |
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| 315 | } |
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| 316 | |
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| 317 | /* |
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| 318 | * A writable uploads dir will pass this test. Again, there's no point |
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| 319 | * overriding this one. |
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| 320 | */ |
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| 321 | if ( ! ( ( $uploads = wp_upload_dir( $time ) ) && false === $uploads['error'] ) ) { |
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| 322 | return call_user_func( $upload_error_handler, $file, $uploads['error'] ); |
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| 323 | } |
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| 324 | |
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| 325 | $filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback ); |
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| 326 | |
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| 327 | // Move the file to the uploads dir. |
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| 328 | $new_file = $uploads['path'] . "/$filename"; |
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| 329 | if ( 'wp_handle_upload' === $action ) { |
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| 330 | $move_new_file = @ move_uploaded_file( $file['tmp_name'], $new_file ); |
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| 331 | } else { |
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| 332 | $move_new_file = @ rename( $file['tmp_name'], $new_file ); |
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| 333 | } |
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| 334 | |
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| 335 | if ( false === $move_new_file ) { |
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| 336 | if ( 0 === strpos( $uploads['basedir'], ABSPATH ) ) { |
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| 337 | $error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir']; |
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| 338 | } else { |
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| 339 | $error_path = basename( $uploads['basedir'] ) . $uploads['subdir']; |
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| 340 | } |
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| 341 | return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $error_path ) ); |
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| 342 | } |
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| 343 | |
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| 344 | // Set correct file permissions. |
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| 345 | $stat = stat( dirname( $new_file )); |
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| 346 | $perms = $stat['mode'] & 0000666; |
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| 347 | @ chmod( $new_file, $perms ); |
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| 348 | |
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| 349 | // Compute the URL. |
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| 350 | $url = $uploads['url'] . "/$filename"; |
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| 351 | |
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| 352 | if ( is_multisite() ) { |
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| 353 | delete_transient( 'dirsize_cache' ); |
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| 354 | } |
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| 355 | |
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| 356 | /** |
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| 357 | * Filter the data array for the uploaded file. |
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| 358 | * |
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| 359 | * @since 2.1.0 |
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| 360 | * |
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| 361 | * @param array $upload { |
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| 362 | * Array of upload data. |
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| 363 | * |
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| 364 | * @type string $file Filename of the newly-uploaded file. |
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| 365 | * @type string $url URL of the uploaded file. |
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| 366 | * @type string $type File type. |
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| 367 | * } |
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| 368 | * @param string $context The type of upload action. Values include 'upload' or 'sideload'. |
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| 369 | */ |
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| 370 | return apply_filters( 'wp_handle_upload', array( |
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| 371 | 'file' => $new_file, |
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| 372 | 'url' => $url, |
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| 373 | 'type' => $type |
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| 374 | ), 'wp_handle_sideload' === $action ? 'sideload' : 'upload' ); } |
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| 375 | |
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| 376 | /** |
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| 377 | * Wrapper for _wp_handle_upload(), passes 'wp_handle_upload' action. |
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| 378 | * |
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| 379 | * @since 2.0.0 |
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| 380 | * |
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| 381 | * @see _wp_handle_upload() |
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| 382 | * |
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| 383 | * @param array $file Reference to a single element of $_FILES. Call the function once for |
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| 384 | * each uploaded file. |
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| 385 | * @param array|bool $overrides Optional. An associative array of names=>values to override default |
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| 386 | * variables. Default false. |
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| 387 | * @param string $time Optional. Time formatted in 'yyyy/mm'. Default null. |
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| 388 | * @return array On success, returns an associative array of file attributes. On failure, returns |
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| 389 | * $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ). |
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| 390 | */ |
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| 391 | function wp_handle_upload( &$file, $overrides = false, $time = null ) { |
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| 392 | /* |
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| 393 | * $_POST['action'] must be set and its value must equal $overrides['action'] |
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| 394 | * or this: |
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| 395 | */ |
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| 396 | $action = 'wp_handle_upload'; |
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| 397 | if ( isset( $overrides['action'] ) ) { |
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| 398 | $action = $overrides['action']; |
|---|
| 399 | } |
|---|
| 400 | |
|---|
| 401 | return _wp_handle_upload( $file, $overrides, $time, $action ); |
|---|
| 402 | } |
|---|
| 403 | |
|---|
| 404 | /** |
|---|
| 405 | * Wrapper for _wp_handle_upload(), passes 'wp_handle_sideload' action |
|---|
| 406 | * |
|---|
| 407 | * @since 2.6.0 |
|---|
| 408 | * |
|---|
| 409 | * @see _wp_handle_upload() |
|---|
| 410 | * |
|---|
| 411 | * @param array $file An array similar to that of a PHP $_FILES POST array |
|---|
| 412 | * @param array|bool $overrides Optional. An associative array of names=>values to override default |
|---|
| 413 | * variables. Default false. |
|---|
| 414 | * @param string $time Optional. Time formatted in 'yyyy/mm'. Default null. |
|---|
| 415 | * @return array On success, returns an associative array of file attributes. On failure, returns |
|---|
| 416 | * $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ). |
|---|
| 417 | */ |
|---|
| 418 | function wp_handle_sideload( &$file, $overrides = false, $time = null ) { |
|---|
| 419 | /* |
|---|
| 420 | * $_POST['action'] must be set and its value must equal $overrides['action'] |
|---|
| 421 | * or this: |
|---|
| 422 | */ |
|---|
| 423 | $action = 'wp_handle_sideload'; |
|---|
| 424 | if ( isset( $overrides['action'] ) ) { |
|---|
| 425 | $action = $overrides['action']; |
|---|
| 426 | } |
|---|
| 427 | return _wp_handle_upload( $file, $overrides, $time, $action ); |
|---|
| 428 | } |
|---|
| 429 | |
|---|
| 430 | |
|---|
| 431 | /** |
|---|
| 432 | * Downloads a url to a local temporary file using the WordPress HTTP Class. |
|---|
| 433 | * Please note, That the calling function must unlink() the file. |
|---|
| 434 | * |
|---|
| 435 | * @since 2.5.0 |
|---|
| 436 | * |
|---|
| 437 | * @param string $url the URL of the file to download |
|---|
| 438 | * @param int $timeout The timeout for the request to download the file default 300 seconds |
|---|
| 439 | * @return mixed WP_Error on failure, string Filename on success. |
|---|
| 440 | */ |
|---|
| 441 | function download_url( $url, $timeout = 300 ) { |
|---|
| 442 | //WARNING: The file is not automatically deleted, The script must unlink() the file. |
|---|
| 443 | if ( ! $url ) |
|---|
| 444 | return new WP_Error('http_no_url', __('Invalid URL Provided.')); |
|---|
| 445 | |
|---|
| 446 | $tmpfname = wp_tempnam($url); |
|---|
| 447 | if ( ! $tmpfname ) |
|---|
| 448 | return new WP_Error('http_no_file', __('Could not create Temporary file.')); |
|---|
| 449 | |
|---|
| 450 | $response = wp_safe_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname ) ); |
|---|
| 451 | |
|---|
| 452 | if ( is_wp_error( $response ) ) { |
|---|
| 453 | unlink( $tmpfname ); |
|---|
| 454 | return $response; |
|---|
| 455 | } |
|---|
| 456 | |
|---|
| 457 | if ( 200 != wp_remote_retrieve_response_code( $response ) ){ |
|---|
| 458 | unlink( $tmpfname ); |
|---|
| 459 | return new WP_Error( 'http_404', trim( wp_remote_retrieve_response_message( $response ) ) ); |
|---|
| 460 | } |
|---|
| 461 | |
|---|
| 462 | $content_md5 = wp_remote_retrieve_header( $response, 'content-md5' ); |
|---|
| 463 | if ( $content_md5 ) { |
|---|
| 464 | $md5_check = verify_file_md5( $tmpfname, $content_md5 ); |
|---|
| 465 | if ( is_wp_error( $md5_check ) ) { |
|---|
| 466 | unlink( $tmpfname ); |
|---|
| 467 | return $md5_check; |
|---|
| 468 | } |
|---|
| 469 | } |
|---|
| 470 | |
|---|
| 471 | return $tmpfname; |
|---|
| 472 | } |
|---|
| 473 | |
|---|
| 474 | /** |
|---|
| 475 | * Calculates and compares the MD5 of a file to its expected value. |
|---|
| 476 | * |
|---|
| 477 | * @since 3.7.0 |
|---|
| 478 | * |
|---|
| 479 | * @param string $filename The filename to check the MD5 of. |
|---|
| 480 | * @param string $expected_md5 The expected MD5 of the file, either a base64 encoded raw md5, or a hex-encoded md5 |
|---|
| 481 | * @return bool|object WP_Error on failure, true on success, false when the MD5 format is unknown/unexpected |
|---|
| 482 | */ |
|---|
| 483 | function verify_file_md5( $filename, $expected_md5 ) { |
|---|
| 484 | if ( 32 == strlen( $expected_md5 ) ) |
|---|
| 485 | $expected_raw_md5 = pack( 'H*', $expected_md5 ); |
|---|
| 486 | elseif ( 24 == strlen( $expected_md5 ) ) |
|---|
| 487 | $expected_raw_md5 = base64_decode( $expected_md5 ); |
|---|
| 488 | else |
|---|
| 489 | return false; // unknown format |
|---|
| 490 | |
|---|
| 491 | $file_md5 = md5_file( $filename, true ); |
|---|
| 492 | |
|---|
| 493 | if ( $file_md5 === $expected_raw_md5 ) |
|---|
| 494 | return true; |
|---|
| 495 | |
|---|
| 496 | return new WP_Error( 'md5_mismatch', sprintf( __( 'The checksum of the file (%1$s) does not match the expected checksum value (%2$s).' ), bin2hex( $file_md5 ), bin2hex( $expected_raw_md5 ) ) ); |
|---|
| 497 | } |
|---|
| 498 | |
|---|
| 499 | /** |
|---|
| 500 | * Unzips a specified ZIP file to a location on the Filesystem via the WordPress Filesystem Abstraction. |
|---|
| 501 | * Assumes that WP_Filesystem() has already been called and set up. Does not extract a root-level __MACOSX directory, if present. |
|---|
| 502 | * |
|---|
| 503 | * Attempts to increase the PHP Memory limit to 256M before uncompressing, |
|---|
| 504 | * However, The most memory required shouldn't be much larger than the Archive itself. |
|---|
| 505 | * |
|---|
| 506 | * @since 2.5.0 |
|---|
| 507 | * |
|---|
| 508 | * @param string $file Full path and filename of zip archive |
|---|
| 509 | * @param string $to Full path on the filesystem to extract archive to |
|---|
| 510 | * @return mixed WP_Error on failure, True on success |
|---|
| 511 | */ |
|---|
| 512 | function unzip_file($file, $to) { |
|---|
| 513 | global $wp_filesystem; |
|---|
| 514 | |
|---|
| 515 | if ( ! $wp_filesystem || !is_object($wp_filesystem) ) |
|---|
| 516 | return new WP_Error('fs_unavailable', __('Could not access filesystem.')); |
|---|
| 517 | |
|---|
| 518 | // Unzip can use a lot of memory, but not this much hopefully |
|---|
| 519 | /** This filter is documented in wp-admin/admin.php */ |
|---|
| 520 | @ini_set( 'memory_limit', apply_filters( 'admin_memory_limit', WP_MAX_MEMORY_LIMIT ) ); |
|---|
| 521 | |
|---|
| 522 | $needed_dirs = array(); |
|---|
| 523 | $to = trailingslashit($to); |
|---|
| 524 | |
|---|
| 525 | // Determine any parent dir's needed (of the upgrade directory) |
|---|
| 526 | if ( ! $wp_filesystem->is_dir($to) ) { //Only do parents if no children exist |
|---|
| 527 | $path = preg_split('![/\\\]!', untrailingslashit($to)); |
|---|
| 528 | for ( $i = count($path); $i >= 0; $i-- ) { |
|---|
| 529 | if ( empty($path[$i]) ) |
|---|
| 530 | continue; |
|---|
| 531 | |
|---|
| 532 | $dir = implode('/', array_slice($path, 0, $i+1) ); |
|---|
| 533 | if ( preg_match('!^[a-z]:$!i', $dir) ) // Skip it if it looks like a Windows Drive letter. |
|---|
| 534 | continue; |
|---|
| 535 | |
|---|
| 536 | if ( ! $wp_filesystem->is_dir($dir) ) |
|---|
| 537 | $needed_dirs[] = $dir; |
|---|
| 538 | else |
|---|
| 539 | break; // A folder exists, therefor, we dont need the check the levels below this |
|---|
| 540 | } |
|---|
| 541 | } |
|---|
| 542 | |
|---|
| 543 | /** |
|---|
| 544 | * Filter whether to use ZipArchive to unzip archives. |
|---|
| 545 | * |
|---|
| 546 | * @since 3.0.0 |
|---|
| 547 | * |
|---|
| 548 | * @param bool $ziparchive Whether to use ZipArchive. Default true. |
|---|
| 549 | */ |
|---|
| 550 | if ( class_exists( 'ZipArchive' ) && apply_filters( 'unzip_file_use_ziparchive', true ) ) { |
|---|
| 551 | $result = _unzip_file_ziparchive($file, $to, $needed_dirs); |
|---|
| 552 | if ( true === $result ) { |
|---|
| 553 | return $result; |
|---|
| 554 | } elseif ( is_wp_error($result) ) { |
|---|
| 555 | if ( 'incompatible_archive' != $result->get_error_code() ) |
|---|
| 556 | return $result; |
|---|
| 557 | } |
|---|
| 558 | } |
|---|
| 559 | // Fall through to PclZip if ZipArchive is not available, or encountered an error opening the file. |
|---|
| 560 | return _unzip_file_pclzip($file, $to, $needed_dirs); |
|---|
| 561 | } |
|---|
| 562 | |
|---|
| 563 | /** |
|---|
| 564 | * This function should not be called directly, use unzip_file instead. Attempts to unzip an archive using the ZipArchive class. |
|---|
| 565 | * Assumes that WP_Filesystem() has already been called and set up. |
|---|
| 566 | * |
|---|
| 567 | * @since 3.0.0 |
|---|
| 568 | * @see unzip_file |
|---|
| 569 | * @access private |
|---|
| 570 | * |
|---|
| 571 | * @param string $file Full path and filename of zip archive |
|---|
| 572 | * @param string $to Full path on the filesystem to extract archive to |
|---|
| 573 | * @param array $needed_dirs A partial list of required folders needed to be created. |
|---|
| 574 | * @return mixed WP_Error on failure, True on success |
|---|
| 575 | */ |
|---|
| 576 | function _unzip_file_ziparchive($file, $to, $needed_dirs = array() ) { |
|---|
| 577 | global $wp_filesystem; |
|---|
| 578 | |
|---|
| 579 | $z = new ZipArchive(); |
|---|
| 580 | |
|---|
| 581 | $zopen = $z->open( $file, ZIPARCHIVE::CHECKCONS ); |
|---|
| 582 | if ( true !== $zopen ) |
|---|
| 583 | return new WP_Error( 'incompatible_archive', __( 'Incompatible Archive.' ), array( 'ziparchive_error' => $zopen ) ); |
|---|
| 584 | |
|---|
| 585 | $uncompressed_size = 0; |
|---|
| 586 | |
|---|
| 587 | for ( $i = 0; $i < $z->numFiles; $i++ ) { |
|---|
| 588 | if ( ! $info = $z->statIndex($i) ) |
|---|
| 589 | return new WP_Error( 'stat_failed_ziparchive', __( 'Could not retrieve file from archive.' ) ); |
|---|
| 590 | |
|---|
| 591 | if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Skip the OS X-created __MACOSX directory |
|---|
| 592 | continue; |
|---|
| 593 | |
|---|
| 594 | $uncompressed_size += $info['size']; |
|---|
| 595 | |
|---|
| 596 | if ( '/' == substr($info['name'], -1) ) // directory |
|---|
| 597 | $needed_dirs[] = $to . untrailingslashit($info['name']); |
|---|
| 598 | else |
|---|
| 599 | $needed_dirs[] = $to . untrailingslashit(dirname($info['name'])); |
|---|
| 600 | } |
|---|
| 601 | |
|---|
| 602 | /* |
|---|
| 603 | * disk_free_space() could return false. Assume that any falsey value is an error. |
|---|
| 604 | * A disk that has zero free bytes has bigger problems. |
|---|
| 605 | * Require we have enough space to unzip the file and copy its contents, with a 10% buffer. |
|---|
| 606 | */ |
|---|
| 607 | if ( defined( 'DOING_CRON' ) && DOING_CRON ) { |
|---|
| 608 | $available_space = @disk_free_space( WP_CONTENT_DIR ); |
|---|
| 609 | if ( $available_space && ( $uncompressed_size * 2.1 ) > $available_space ) |
|---|
| 610 | 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' ) ); |
|---|
| 611 | } |
|---|
| 612 | |
|---|
| 613 | $needed_dirs = array_unique($needed_dirs); |
|---|
| 614 | foreach ( $needed_dirs as $dir ) { |
|---|
| 615 | // Check the parent folders of the folders all exist within the creation array. |
|---|
| 616 | if ( untrailingslashit($to) == $dir ) // Skip over the working directory, We know this exists (or will exist) |
|---|
| 617 | continue; |
|---|
| 618 | if ( strpos($dir, $to) === false ) // If the directory is not within the working directory, Skip it |
|---|
| 619 | continue; |
|---|
| 620 | |
|---|
| 621 | $parent_folder = dirname($dir); |
|---|
| 622 | while ( !empty($parent_folder) && untrailingslashit($to) != $parent_folder && !in_array($parent_folder, $needed_dirs) ) { |
|---|
| 623 | $needed_dirs[] = $parent_folder; |
|---|
| 624 | $parent_folder = dirname($parent_folder); |
|---|
| 625 | } |
|---|
| 626 | } |
|---|
| 627 | asort($needed_dirs); |
|---|
| 628 | |
|---|
| 629 | // Create those directories if need be: |
|---|
| 630 | foreach ( $needed_dirs as $_dir ) { |
|---|
| 631 | 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. |
|---|
| 632 | return new WP_Error( 'mkdir_failed_ziparchive', __( 'Could not create directory.' ), substr( $_dir, strlen( $to ) ) ); |
|---|
| 633 | } |
|---|
| 634 | unset($needed_dirs); |
|---|
| 635 | |
|---|
| 636 | for ( $i = 0; $i < $z->numFiles; $i++ ) { |
|---|
| 637 | if ( ! $info = $z->statIndex($i) ) |
|---|
| 638 | return new WP_Error( 'stat_failed_ziparchive', __( 'Could not retrieve file from archive.' ) ); |
|---|
| 639 | |
|---|
| 640 | if ( '/' == substr($info['name'], -1) ) // directory |
|---|
| 641 | continue; |
|---|
| 642 | |
|---|
| 643 | if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files |
|---|
| 644 | continue; |
|---|
| 645 | |
|---|
| 646 | $contents = $z->getFromIndex($i); |
|---|
| 647 | if ( false === $contents ) |
|---|
| 648 | return new WP_Error( 'extract_failed_ziparchive', __( 'Could not extract file from archive.' ), $info['name'] ); |
|---|
| 649 | |
|---|
| 650 | if ( ! $wp_filesystem->put_contents( $to . $info['name'], $contents, FS_CHMOD_FILE) ) |
|---|
| 651 | return new WP_Error( 'copy_failed_ziparchive', __( 'Could not copy file.' ), $info['name'] ); |
|---|
| 652 | } |
|---|
| 653 | |
|---|
| 654 | $z->close(); |
|---|
| 655 | |
|---|
| 656 | return true; |
|---|
| 657 | } |
|---|
| 658 | |
|---|
| 659 | /** |
|---|
| 660 | * This function should not be called directly, use unzip_file instead. Attempts to unzip an archive using the PclZip library. |
|---|
| 661 | * Assumes that WP_Filesystem() has already been called and set up. |
|---|
| 662 | * |
|---|
| 663 | * @since 3.0.0 |
|---|
| 664 | * @see unzip_file |
|---|
| 665 | * @access private |
|---|
| 666 | * |
|---|
| 667 | * @param string $file Full path and filename of zip archive |
|---|
| 668 | * @param string $to Full path on the filesystem to extract archive to |
|---|
| 669 | * @param array $needed_dirs A partial list of required folders needed to be created. |
|---|
| 670 | * @return mixed WP_Error on failure, True on success |
|---|
| 671 | */ |
|---|
| 672 | function _unzip_file_pclzip($file, $to, $needed_dirs = array()) { |
|---|
| 673 | global $wp_filesystem; |
|---|
| 674 | |
|---|
| 675 | mbstring_binary_safe_encoding(); |
|---|
| 676 | |
|---|
| 677 | require_once(ABSPATH . 'wp-admin/includes/class-pclzip.php'); |
|---|
| 678 | |
|---|
| 679 | $archive = new PclZip($file); |
|---|
| 680 | |
|---|
| 681 | $archive_files = $archive->extract(PCLZIP_OPT_EXTRACT_AS_STRING); |
|---|
| 682 | |
|---|
| 683 | reset_mbstring_encoding(); |
|---|
| 684 | |
|---|
| 685 | // Is the archive valid? |
|---|
| 686 | if ( !is_array($archive_files) ) |
|---|
| 687 | return new WP_Error('incompatible_archive', __('Incompatible Archive.'), $archive->errorInfo(true)); |
|---|
| 688 | |
|---|
| 689 | if ( 0 == count($archive_files) ) |
|---|
| 690 | return new WP_Error( 'empty_archive_pclzip', __( 'Empty archive.' ) ); |
|---|
| 691 | |
|---|
| 692 | $uncompressed_size = 0; |
|---|
| 693 | |
|---|
| 694 | // Determine any children directories needed (From within the archive) |
|---|
| 695 | foreach ( $archive_files as $file ) { |
|---|
| 696 | if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Skip the OS X-created __MACOSX directory |
|---|
| 697 | continue; |
|---|
| 698 | |
|---|
| 699 | $uncompressed_size += $file['size']; |
|---|
| 700 | |
|---|
| 701 | $needed_dirs[] = $to . untrailingslashit( $file['folder'] ? $file['filename'] : dirname($file['filename']) ); |
|---|
| 702 | } |
|---|
| 703 | |
|---|
| 704 | /* |
|---|
| 705 | * disk_free_space() could return false. Assume that any falsey value is an error. |
|---|
| 706 | * A disk that has zero free bytes has bigger problems. |
|---|
| 707 | * Require we have enough space to unzip the file and copy its contents, with a 10% buffer. |
|---|
| 708 | */ |
|---|
| 709 | if ( defined( 'DOING_CRON' ) && DOING_CRON ) { |
|---|
| 710 | $available_space = @disk_free_space( WP_CONTENT_DIR ); |
|---|
| 711 | if ( $available_space && ( $uncompressed_size * 2.1 ) > $available_space ) |
|---|
| 712 | 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' ) ); |
|---|
| 713 | } |
|---|
| 714 | |
|---|
| 715 | $needed_dirs = array_unique($needed_dirs); |
|---|
| 716 | foreach ( $needed_dirs as $dir ) { |
|---|
| 717 | // Check the parent folders of the folders all exist within the creation array. |
|---|
| 718 | if ( untrailingslashit($to) == $dir ) // Skip over the working directory, We know this exists (or will exist) |
|---|
| 719 | continue; |
|---|
| 720 | if ( strpos($dir, $to) === false ) // If the directory is not within the working directory, Skip it |
|---|
| 721 | continue; |
|---|
| 722 | |
|---|
| 723 | $parent_folder = dirname($dir); |
|---|
| 724 | while ( !empty($parent_folder) && untrailingslashit($to) != $parent_folder && !in_array($parent_folder, $needed_dirs) ) { |
|---|
| 725 | $needed_dirs[] = $parent_folder; |
|---|
| 726 | $parent_folder = dirname($parent_folder); |
|---|
| 727 | } |
|---|
| 728 | } |
|---|
| 729 | asort($needed_dirs); |
|---|
| 730 | |
|---|
| 731 | // Create those directories if need be: |
|---|
| 732 | foreach ( $needed_dirs as $_dir ) { |
|---|
| 733 | // Only check to see if the dir exists upon creation failure. Less I/O this way. |
|---|
| 734 | if ( ! $wp_filesystem->mkdir( $_dir, FS_CHMOD_DIR ) && ! $wp_filesystem->is_dir( $_dir ) ) |
|---|
| 735 | return new WP_Error( 'mkdir_failed_pclzip', __( 'Could not create directory.' ), substr( $_dir, strlen( $to ) ) ); |
|---|
| 736 | } |
|---|
| 737 | unset($needed_dirs); |
|---|
| 738 | |
|---|
| 739 | // Extract the files from the zip |
|---|
| 740 | foreach ( $archive_files as $file ) { |
|---|
| 741 | if ( $file['folder'] ) |
|---|
| 742 | continue; |
|---|
| 743 | |
|---|
| 744 | if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files |
|---|
| 745 | continue; |
|---|
| 746 | |
|---|
| 747 | if ( ! $wp_filesystem->put_contents( $to . $file['filename'], $file['content'], FS_CHMOD_FILE) ) |
|---|
| 748 | return new WP_Error( 'copy_failed_pclzip', __( 'Could not copy file.' ), $file['filename'] ); |
|---|
| 749 | } |
|---|
| 750 | return true; |
|---|
| 751 | } |
|---|
| 752 | |
|---|
| 753 | /** |
|---|
| 754 | * Copies a directory from one location to another via the WordPress Filesystem Abstraction. |
|---|
| 755 | * Assumes that WP_Filesystem() has already been called and setup. |
|---|
| 756 | * |
|---|
| 757 | * @since 2.5.0 |
|---|
| 758 | * |
|---|
| 759 | * @param string $from source directory |
|---|
| 760 | * @param string $to destination directory |
|---|
| 761 | * @param array $skip_list a list of files/folders to skip copying |
|---|
| 762 | * @return mixed WP_Error on failure, True on success. |
|---|
| 763 | */ |
|---|
| 764 | function copy_dir($from, $to, $skip_list = array() ) { |
|---|
| 765 | global $wp_filesystem; |
|---|
| 766 | |
|---|
| 767 | $dirlist = $wp_filesystem->dirlist($from); |
|---|
| 768 | |
|---|
| 769 | $from = trailingslashit($from); |
|---|
| 770 | $to = trailingslashit($to); |
|---|
| 771 | |
|---|
| 772 | foreach ( (array) $dirlist as $filename => $fileinfo ) { |
|---|
| 773 | if ( in_array( $filename, $skip_list ) ) |
|---|
| 774 | continue; |
|---|
| 775 | |
|---|
| 776 | if ( 'f' == $fileinfo['type'] ) { |
|---|
| 777 | if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) { |
|---|
| 778 | // If copy failed, chmod file to 0644 and try again. |
|---|
| 779 | $wp_filesystem->chmod( $to . $filename, FS_CHMOD_FILE ); |
|---|
| 780 | if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) |
|---|
| 781 | return new WP_Error( 'copy_failed_copy_dir', __( 'Could not copy file.' ), $to . $filename ); |
|---|
| 782 | } |
|---|
| 783 | } elseif ( 'd' == $fileinfo['type'] ) { |
|---|
| 784 | if ( !$wp_filesystem->is_dir($to . $filename) ) { |
|---|
| 785 | if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) ) |
|---|
| 786 | return new WP_Error( 'mkdir_failed_copy_dir', __( 'Could not create directory.' ), $to . $filename ); |
|---|
| 787 | } |
|---|
| 788 | |
|---|
| 789 | // generate the $sub_skip_list for the subdirectory as a sub-set of the existing $skip_list |
|---|
| 790 | $sub_skip_list = array(); |
|---|
| 791 | foreach ( $skip_list as $skip_item ) { |
|---|
| 792 | if ( 0 === strpos( $skip_item, $filename . '/' ) ) |
|---|
| 793 | $sub_skip_list[] = preg_replace( '!^' . preg_quote( $filename, '!' ) . '/!i', '', $skip_item ); |
|---|
| 794 | } |
|---|
| 795 | |
|---|
| 796 | $result = copy_dir($from . $filename, $to . $filename, $sub_skip_list); |
|---|
| 797 | if ( is_wp_error($result) ) |
|---|
| 798 | return $result; |
|---|
| 799 | } |
|---|
| 800 | } |
|---|
| 801 | return true; |
|---|
| 802 | } |
|---|
| 803 | |
|---|
| 804 | /** |
|---|
| 805 | * Initialises and connects the WordPress Filesystem Abstraction classes. |
|---|
| 806 | * This function will include the chosen transport and attempt connecting. |
|---|
| 807 | * |
|---|
| 808 | * Plugins may add extra transports, And force WordPress to use them by returning |
|---|
| 809 | * the filename via the {@see 'filesystem_method_file'} filter. |
|---|
| 810 | * |
|---|
| 811 | * @since 2.5.0 |
|---|
| 812 | * |
|---|
| 813 | * @param array $args Optional. Connection args, These are passed directly to |
|---|
| 814 | * the `WP_Filesystem_*()` classes. Default false. |
|---|
| 815 | * @param string $context Optional. Context for {@see get_filesystem_method()}. |
|---|
| 816 | * Default false. |
|---|
| 817 | * @param bool $allow_relaxed_file_ownership Optional. Whether to allow Group/World writable. |
|---|
| 818 | * Default false. |
|---|
| 819 | * @return null|boolean false on failure, true on success. |
|---|
| 820 | */ |
|---|
| 821 | function WP_Filesystem( $args = false, $context = false, $allow_relaxed_file_ownership = false ) { |
|---|
| 822 | global $wp_filesystem; |
|---|
| 823 | |
|---|
| 824 | require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php'); |
|---|
| 825 | |
|---|
| 826 | $method = get_filesystem_method( $args, $context, $allow_relaxed_file_ownership ); |
|---|
| 827 | |
|---|
| 828 | if ( ! $method ) |
|---|
| 829 | return false; |
|---|
| 830 | |
|---|
| 831 | if ( ! class_exists("WP_Filesystem_$method") ) { |
|---|
| 832 | |
|---|
| 833 | /** |
|---|
| 834 | * Filter the path for a specific filesystem method class file. |
|---|
| 835 | * |
|---|
| 836 | * @since 2.6.0 |
|---|
| 837 | * |
|---|
| 838 | * @see get_filesystem_method() |
|---|
| 839 | * |
|---|
| 840 | * @param string $path Path to the specific filesystem method class file. |
|---|
| 841 | * @param string $method The filesystem method to use. |
|---|
| 842 | */ |
|---|
| 843 | $abstraction_file = apply_filters( 'filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method ); |
|---|
| 844 | |
|---|
| 845 | if ( ! file_exists($abstraction_file) ) |
|---|
| 846 | return; |
|---|
| 847 | |
|---|
| 848 | require_once($abstraction_file); |
|---|
| 849 | } |
|---|
| 850 | $method = "WP_Filesystem_$method"; |
|---|
| 851 | |
|---|
| 852 | $wp_filesystem = new $method($args); |
|---|
| 853 | |
|---|
| 854 | //Define the timeouts for the connections. Only available after the construct is called to allow for per-transport overriding of the default. |
|---|
| 855 | if ( ! defined('FS_CONNECT_TIMEOUT') ) |
|---|
| 856 | define('FS_CONNECT_TIMEOUT', 30); |
|---|
| 857 | if ( ! defined('FS_TIMEOUT') ) |
|---|
| 858 | define('FS_TIMEOUT', 30); |
|---|
| 859 | |
|---|
| 860 | if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() ) |
|---|
| 861 | return false; |
|---|
| 862 | |
|---|
| 863 | if ( !$wp_filesystem->connect() ) |
|---|
| 864 | return false; //There was an error connecting to the server. |
|---|
| 865 | |
|---|
| 866 | // Set the permission constants if not already set. |
|---|
| 867 | if ( ! defined('FS_CHMOD_DIR') ) |
|---|
| 868 | define('FS_CHMOD_DIR', ( fileperms( ABSPATH ) & 0777 | 0755 ) ); |
|---|
| 869 | if ( ! defined('FS_CHMOD_FILE') ) |
|---|
| 870 | define('FS_CHMOD_FILE', ( fileperms( ABSPATH . 'index.php' ) & 0777 | 0644 ) ); |
|---|
| 871 | |
|---|
| 872 | return true; |
|---|
| 873 | } |
|---|
| 874 | |
|---|
| 875 | /** |
|---|
| 876 | * Determines which Filesystem Method to use. |
|---|
| 877 | * |
|---|
| 878 | * The priority of the Transports are: Direct, SSH2, FTP PHP Extension, |
|---|
| 879 | * FTP Sockets (Via Sockets class, or `fsockopen()`). |
|---|
| 880 | * |
|---|
| 881 | * Note that the return value of this function can be overridden in 2 ways |
|---|
| 882 | * |
|---|
| 883 | * - By defining FS_METHOD in your `wp-config.php` file |
|---|
| 884 | * - By using the filesystem_method filter |
|---|
| 885 | * |
|---|
| 886 | * Valid values for these are: 'direct', 'ssh2', 'ftpext' or 'ftpsockets'. |
|---|
| 887 | * |
|---|
| 888 | * Plugins may also define a custom transport handler, See the WP_Filesystem |
|---|
| 889 | * function for more information. |
|---|
| 890 | * |
|---|
| 891 | * @since 2.5.0 |
|---|
| 892 | * |
|---|
| 893 | * @todo Properly mark arguments as optional. |
|---|
| 894 | * |
|---|
| 895 | * @param array $args Connection details. |
|---|
| 896 | * @param string $context Full path to the directory that is tested for being writable. |
|---|
| 897 | * @param bool $allow_relaxed_file_ownership Whether to allow Group/World writable. |
|---|
| 898 | * @return string The transport to use, see description for valid return values. |
|---|
| 899 | */ |
|---|
| 900 | function get_filesystem_method( $args = array(), $context = false, $allow_relaxed_file_ownership = false ) { |
|---|
| 901 | $method = defined('FS_METHOD') ? FS_METHOD : false; // Please ensure that this is either 'direct', 'ssh2', 'ftpext' or 'ftpsockets' |
|---|
| 902 | |
|---|
| 903 | if ( ! $context ) { |
|---|
| 904 | $context = WP_CONTENT_DIR; |
|---|
| 905 | } |
|---|
| 906 | |
|---|
| 907 | // If the directory doesn't exist (wp-content/languages) then use the parent directory as we'll create it. |
|---|
| 908 | if ( WP_LANG_DIR == $context && ! is_dir( $context ) ) { |
|---|
| 909 | $context = dirname( $context ); |
|---|
| 910 | } |
|---|
| 911 | |
|---|
| 912 | $context = trailingslashit( $context ); |
|---|
| 913 | |
|---|
| 914 | if ( ! $method ) { |
|---|
| 915 | |
|---|
| 916 | $temp_file_name = $context . 'temp-write-test-' . time(); |
|---|
| 917 | $temp_handle = @fopen($temp_file_name, 'w'); |
|---|
| 918 | if ( $temp_handle ) { |
|---|
| 919 | |
|---|
| 920 | // Attempt to determine the file owner of the WordPress files, and that of newly created files |
|---|
| 921 | $wp_file_owner = $temp_file_owner = false; |
|---|
| 922 | if ( function_exists('fileowner') ) { |
|---|
| 923 | $wp_file_owner = @fileowner( __FILE__ ); |
|---|
| 924 | $temp_file_owner = @fileowner( $temp_file_name ); |
|---|
| 925 | } |
|---|
| 926 | |
|---|
| 927 | if ( $wp_file_owner !== false && $wp_file_owner === $temp_file_owner ) { |
|---|
| 928 | // WordPress is creating files as the same owner as the WordPress files, |
|---|
| 929 | // this means it's safe to modify & create new files via PHP. |
|---|
| 930 | $method = 'direct'; |
|---|
| 931 | } else if ( $allow_relaxed_file_ownership ) { |
|---|
| 932 | // The $context directory is writable, and $allow_relaxed_file_ownership is set, this means we can modify files |
|---|
| 933 | // safely in this directory. This mode doesn't create new files, only alter existing ones. |
|---|
| 934 | $method = 'direct'; |
|---|
| 935 | } |
|---|
| 936 | |
|---|
| 937 | @fclose($temp_handle); |
|---|
| 938 | @unlink($temp_file_name); |
|---|
| 939 | } |
|---|
| 940 | } |
|---|
| 941 | |
|---|
| 942 | if ( ! $method && isset($args['connection_type']) && 'ssh' == $args['connection_type'] && extension_loaded('ssh2') && function_exists('stream_get_contents') ) $method = 'ssh2'; |
|---|
| 943 | if ( ! $method && extension_loaded('ftp') ) $method = 'ftpext'; |
|---|
| 944 | if ( ! $method && ( extension_loaded('sockets') || function_exists('fsockopen') ) ) $method = 'ftpsockets'; //Sockets: Socket extension; PHP Mode: FSockopen / fwrite / fread |
|---|
| 945 | |
|---|
| 946 | /** |
|---|
| 947 | * Filter the filesystem method to use. |
|---|
| 948 | * |
|---|
| 949 | * @since 2.6.0 |
|---|
| 950 | * |
|---|
| 951 | * @param string $method Filesystem method to return. |
|---|
| 952 | * @param array $args An array of connection details for the method. |
|---|
| 953 | * @param string $context Full path to the directory that is tested for being writable. |
|---|
| 954 | * @param bool $allow_relaxed_file_ownership Whether to allow Group/World writable. |
|---|
| 955 | */ |
|---|
| 956 | return apply_filters( 'filesystem_method', $method, $args, $context, $allow_relaxed_file_ownership ); |
|---|
| 957 | } |
|---|
| 958 | |
|---|
| 959 | /** |
|---|
| 960 | * Displays a form to the user to request for their FTP/SSH details in order |
|---|
| 961 | * to connect to the filesystem. |
|---|
| 962 | * |
|---|
| 963 | * All chosen/entered details are saved, Excluding the Password. |
|---|
| 964 | * |
|---|
| 965 | * Hostnames may be in the form of hostname:portnumber (eg: wordpress.org:2467) |
|---|
| 966 | * to specify an alternate FTP/SSH port. |
|---|
| 967 | * |
|---|
| 968 | * Plugins may override this form by returning true|false via the |
|---|
| 969 | * {@see 'request_filesystem_credentials'} filter. |
|---|
| 970 | * |
|---|
| 971 | * @since 2.5. |
|---|
| 972 | * |
|---|
| 973 | * @todo Properly mark optional arguments as such |
|---|
| 974 | * |
|---|
| 975 | * @param string $form_post the URL to post the form to |
|---|
| 976 | * @param string $type the chosen Filesystem method in use |
|---|
| 977 | * @param boolean $error if the current request has failed to connect |
|---|
| 978 | * @param string $context The directory which is needed access to, The write-test will be performed on this directory by get_filesystem_method() |
|---|
| 979 | * @param string $extra_fields Extra POST fields which should be checked for to be included in the post. |
|---|
| 980 | * @param bool $allow_relaxed_file_ownership Whether to allow Group/World writable. |
|---|
| 981 | * @return boolean False on failure. True on success. |
|---|
| 982 | */ |
|---|
| 983 | function request_filesystem_credentials($form_post, $type = '', $error = false, $context = false, $extra_fields = null, $allow_relaxed_file_ownership = false ) { |
|---|
| 984 | |
|---|
| 985 | /** |
|---|
| 986 | * Filter the filesystem credentials form output. |
|---|
| 987 | * |
|---|
| 988 | * Returning anything other than an empty string will effectively short-circuit |
|---|
| 989 | * output of the filesystem credentials form, returning that value instead. |
|---|
| 990 | * |
|---|
| 991 | * @since 2.5.0 |
|---|
| 992 | * |
|---|
| 993 | * @param mixed $output Form output to return instead. Default empty. |
|---|
| 994 | * @param string $form_post URL to POST the form to. |
|---|
| 995 | * @param string $type Chosen type of filesystem. |
|---|
| 996 | * @param bool $error Whether the current request has failed to connect. |
|---|
| 997 | * Default false. |
|---|
| 998 | * @param string $context Full path to the directory that is tested for |
|---|
| 999 | * being writable. |
|---|
| 1000 | * @param bool $allow_relaxed_file_ownership Whether to allow Group/World writable. |
|---|
| 1001 | * @param array $extra_fields Extra POST fields. |
|---|
| 1002 | */ |
|---|
| 1003 | $req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields, $allow_relaxed_file_ownership ); |
|---|
| 1004 | if ( '' !== $req_cred ) |
|---|
| 1005 | return $req_cred; |
|---|
| 1006 | |
|---|
| 1007 | if ( empty($type) ) { |
|---|
| 1008 | $type = get_filesystem_method( array(), $context, $allow_relaxed_file_ownership ); |
|---|
| 1009 | } |
|---|
| 1010 | |
|---|
| 1011 | if ( 'direct' == $type ) |
|---|
| 1012 | return true; |
|---|
| 1013 | |
|---|
| 1014 | if ( is_null( $extra_fields ) ) |
|---|
| 1015 | $extra_fields = array( 'version', 'locale' ); |
|---|
| 1016 | |
|---|
| 1017 | $credentials = get_option('ftp_credentials', array( 'hostname' => '', 'username' => '')); |
|---|
| 1018 | |
|---|
| 1019 | // 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) |
|---|
| 1020 | $credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($_POST['hostname']) ? wp_unslash( $_POST['hostname'] ) : $credentials['hostname']); |
|---|
| 1021 | $credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($_POST['username']) ? wp_unslash( $_POST['username'] ) : $credentials['username']); |
|---|
| 1022 | $credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($_POST['password']) ? wp_unslash( $_POST['password'] ) : ''); |
|---|
| 1023 | |
|---|
| 1024 | // Check to see if we are setting the public/private keys for ssh |
|---|
| 1025 | $credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($_POST['public_key']) ? wp_unslash( $_POST['public_key'] ) : ''); |
|---|
| 1026 | $credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($_POST['private_key']) ? wp_unslash( $_POST['private_key'] ) : ''); |
|---|
| 1027 | |
|---|
| 1028 | // Sanitize the hostname, Some people might pass in odd-data: |
|---|
| 1029 | $credentials['hostname'] = preg_replace('|\w+://|', '', $credentials['hostname']); //Strip any schemes off |
|---|
| 1030 | |
|---|
| 1031 | if ( strpos($credentials['hostname'], ':') ) { |
|---|
| 1032 | list( $credentials['hostname'], $credentials['port'] ) = explode(':', $credentials['hostname'], 2); |
|---|
| 1033 | if ( ! is_numeric($credentials['port']) ) |
|---|
| 1034 | unset($credentials['port']); |
|---|
| 1035 | } else { |
|---|
| 1036 | unset($credentials['port']); |
|---|
| 1037 | } |
|---|
| 1038 | |
|---|
| 1039 | if ( ( defined('FTP_SSH') && FTP_SSH ) || ( defined('FS_METHOD') && 'ssh2' == FS_METHOD ) ) |
|---|
| 1040 | $credentials['connection_type'] = 'ssh'; |
|---|
| 1041 | else if ( (defined('FTP_SSL') && FTP_SSL) && 'ftpext' == $type ) //Only the FTP Extension understands SSL |
|---|
| 1042 | $credentials['connection_type'] = 'ftps'; |
|---|
| 1043 | else if ( !empty($_POST['connection_type']) ) |
|---|
| 1044 | $credentials['connection_type'] = wp_unslash( $_POST['connection_type'] ); |
|---|
| 1045 | else if ( !isset($credentials['connection_type']) ) //All else fails (And it's not defaulted to something else saved), Default to FTP |
|---|
| 1046 | $credentials['connection_type'] = 'ftp'; |
|---|
| 1047 | |
|---|
| 1048 | if ( ! $error && |
|---|
| 1049 | ( |
|---|
| 1050 | ( !empty($credentials['password']) && !empty($credentials['username']) && !empty($credentials['hostname']) ) || |
|---|
| 1051 | ( 'ssh' == $credentials['connection_type'] && !empty($credentials['public_key']) && !empty($credentials['private_key']) ) |
|---|
| 1052 | ) ) { |
|---|
| 1053 | $stored_credentials = $credentials; |
|---|
| 1054 | if ( !empty($stored_credentials['port']) ) //save port as part of hostname to simplify above code. |
|---|
| 1055 | $stored_credentials['hostname'] .= ':' . $stored_credentials['port']; |
|---|
| 1056 | |
|---|
| 1057 | unset($stored_credentials['password'], $stored_credentials['port'], $stored_credentials['private_key'], $stored_credentials['public_key']); |
|---|
| 1058 | if ( ! defined( 'WP_INSTALLING' ) ) { |
|---|
| 1059 | update_option( 'ftp_credentials', $stored_credentials ); |
|---|
| 1060 | } |
|---|
| 1061 | return $credentials; |
|---|
| 1062 | } |
|---|
| 1063 | $hostname = isset( $credentials['hostname'] ) ? $credentials['hostname'] : ''; |
|---|
| 1064 | $username = isset( $credentials['username'] ) ? $credentials['username'] : ''; |
|---|
| 1065 | $public_key = isset( $credentials['public_key'] ) ? $credentials['public_key'] : ''; |
|---|
| 1066 | $private_key = isset( $credentials['private_key'] ) ? $credentials['private_key'] : ''; |
|---|
| 1067 | $port = isset( $credentials['port'] ) ? $credentials['port'] : ''; |
|---|
| 1068 | $connection_type = isset( $credentials['connection_type'] ) ? $credentials['connection_type'] : ''; |
|---|
| 1069 | |
|---|
| 1070 | if ( $error ) { |
|---|
| 1071 | $error_string = __('<strong>ERROR:</strong> There was an error connecting to the server, Please verify the settings are correct.'); |
|---|
| 1072 | if ( is_wp_error($error) ) |
|---|
| 1073 | $error_string = esc_html( $error->get_error_message() ); |
|---|
| 1074 | echo '<div id="message" class="error"><p>' . $error_string . '</p></div>'; |
|---|
| 1075 | } |
|---|
| 1076 | |
|---|
| 1077 | $types = array(); |
|---|
| 1078 | if ( extension_loaded('ftp') || extension_loaded('sockets') || function_exists('fsockopen') ) |
|---|
| 1079 | $types[ 'ftp' ] = __('FTP'); |
|---|
| 1080 | if ( extension_loaded('ftp') ) //Only this supports FTPS |
|---|
| 1081 | $types[ 'ftps' ] = __('FTPS (SSL)'); |
|---|
| 1082 | if ( extension_loaded('ssh2') && function_exists('stream_get_contents') ) |
|---|
| 1083 | $types[ 'ssh' ] = __('SSH2'); |
|---|
| 1084 | |
|---|
| 1085 | /** |
|---|
| 1086 | * Filter the connection types to output to the filesystem credentials form. |
|---|
| 1087 | * |
|---|
| 1088 | * @since 2.9.0 |
|---|
| 1089 | * |
|---|
| 1090 | * @param array $types Types of connections. |
|---|
| 1091 | * @param array $credentials Credentials to connect with. |
|---|
| 1092 | * @param string $type Chosen filesystem method. |
|---|
| 1093 | * @param object $error Error object. |
|---|
| 1094 | * @param string $context Full path to the directory that is tested |
|---|
| 1095 | * for being writable. |
|---|
| 1096 | */ |
|---|
| 1097 | $types = apply_filters( 'fs_ftp_connection_types', $types, $credentials, $type, $error, $context ); |
|---|
| 1098 | |
|---|
| 1099 | ?> |
|---|
| 1100 | <script type="text/javascript"> |
|---|
| 1101 | <!-- |
|---|
| 1102 | jQuery(function($){ |
|---|
| 1103 | jQuery("#ssh").click(function () { |
|---|
| 1104 | jQuery("#ssh_keys").show(); |
|---|
| 1105 | }); |
|---|
| 1106 | jQuery("#ftp, #ftps").click(function () { |
|---|
| 1107 | jQuery("#ssh_keys").hide(); |
|---|
| 1108 | }); |
|---|
| 1109 | jQuery('form input[value=""]:first').focus(); |
|---|
| 1110 | }); |
|---|
| 1111 | --> |
|---|
| 1112 | </script> |
|---|
| 1113 | <form action="<?php echo esc_url( $form_post ) ?>" method="post"> |
|---|
| 1114 | <div> |
|---|
| 1115 | <h3><?php _e('Connection Information') ?></h3> |
|---|
| 1116 | <p><?php |
|---|
| 1117 | $label_user = __('Username'); |
|---|
| 1118 | $label_pass = __('Password'); |
|---|
| 1119 | _e('To perform the requested action, WordPress needs to access your web server.'); |
|---|
| 1120 | echo ' '; |
|---|
| 1121 | if ( ( isset( $types['ftp'] ) || isset( $types['ftps'] ) ) ) { |
|---|
| 1122 | if ( isset( $types['ssh'] ) ) { |
|---|
| 1123 | _e('Please enter your FTP or SSH credentials to proceed.'); |
|---|
| 1124 | $label_user = __('FTP/SSH Username'); |
|---|
| 1125 | $label_pass = __('FTP/SSH Password'); |
|---|
| 1126 | } else { |
|---|
| 1127 | _e('Please enter your FTP credentials to proceed.'); |
|---|
| 1128 | $label_user = __('FTP Username'); |
|---|
| 1129 | $label_pass = __('FTP Password'); |
|---|
| 1130 | } |
|---|
| 1131 | echo ' '; |
|---|
| 1132 | } |
|---|
| 1133 | _e('If you do not remember your credentials, you should contact your web host.'); |
|---|
| 1134 | ?></p> |
|---|
| 1135 | <table class="form-table"> |
|---|
| 1136 | <tr> |
|---|
| 1137 | <th scope="row"><label for="hostname"><?php _e('Hostname') ?></label></th> |
|---|
| 1138 | <td><input name="hostname" type="text" id="hostname" value="<?php echo esc_attr($hostname); if ( !empty($port) ) echo ":$port"; ?>"<?php disabled( defined('FTP_HOST') ); ?> size="40" /></td> |
|---|
| 1139 | </tr> |
|---|
| 1140 | |
|---|
| 1141 | <tr> |
|---|
| 1142 | <th scope="row"><label for="username"><?php echo $label_user; ?></label></th> |
|---|
| 1143 | <td><input name="username" type="text" id="username" value="<?php echo esc_attr($username) ?>"<?php disabled( defined('FTP_USER') ); ?> size="40" /></td> |
|---|
| 1144 | </tr> |
|---|
| 1145 | |
|---|
| 1146 | <tr> |
|---|
| 1147 | <th scope="row"><label for="password"><?php echo $label_pass; ?></label></th> |
|---|
| 1148 | <td><div><input name="password" type="password" id="password" value="<?php if ( defined('FTP_PASS') ) echo '*****'; ?>"<?php disabled( defined('FTP_PASS') ); ?> size="40" /></div> |
|---|
| 1149 | <div><em><?php if ( ! defined('FTP_PASS') ) _e( 'This password will not be stored on the server.' ); ?></em></div></td> |
|---|
| 1150 | </tr> |
|---|
| 1151 | |
|---|
| 1152 | <?php if ( isset($types['ssh']) ) : ?> |
|---|
| 1153 | <tr id="ssh_keys" style="<?php if ( 'ssh' != $connection_type ) echo 'display:none' ?>"> |
|---|
| 1154 | <th scope="row"><?php _e('Authentication Keys') ?> |
|---|
| 1155 | <div class="key-labels textright"> |
|---|
| 1156 | <label for="public_key"><?php _e('Public Key:') ?></label ><br /> |
|---|
| 1157 | <label for="private_key"><?php _e('Private Key:') ?></label> |
|---|
| 1158 | </div></th> |
|---|
| 1159 | <td><br /><input name="public_key" type="text" id="public_key" value="<?php echo esc_attr($public_key) ?>"<?php disabled( defined('FTP_PUBKEY') ); ?> size="40" /> |
|---|
| 1160 | <br /><input name="private_key" type="text" id="private_key" value="<?php echo esc_attr($private_key) ?>"<?php disabled( defined('FTP_PRIKEY') ); ?> size="40" /> |
|---|
| 1161 | <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> |
|---|
| 1162 | </tr> |
|---|
| 1163 | <?php endif; ?> |
|---|
| 1164 | |
|---|
| 1165 | <tr> |
|---|
| 1166 | <th scope="row"><?php _e('Connection Type') ?></th> |
|---|
| 1167 | <td> |
|---|
| 1168 | <fieldset><legend class="screen-reader-text"><span><?php _e('Connection Type') ?></span></legend> |
|---|
| 1169 | <?php |
|---|
| 1170 | $disabled = disabled( (defined('FTP_SSL') && FTP_SSL) || (defined('FTP_SSH') && FTP_SSH), true, false ); |
|---|
| 1171 | foreach ( $types as $name => $text ) : ?> |
|---|
| 1172 | <label for="<?php echo esc_attr($name) ?>"> |
|---|
| 1173 | <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; ?> /> |
|---|
| 1174 | <?php echo $text ?> |
|---|
| 1175 | </label> |
|---|
| 1176 | <?php endforeach; ?> |
|---|
| 1177 | </fieldset> |
|---|
| 1178 | </td> |
|---|
| 1179 | </tr> |
|---|
| 1180 | </table> |
|---|
| 1181 | |
|---|
| 1182 | <?php |
|---|
| 1183 | foreach ( (array) $extra_fields as $field ) { |
|---|
| 1184 | if ( isset( $_POST[ $field ] ) ) |
|---|
| 1185 | echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( wp_unslash( $_POST[ $field ] ) ) . '" />'; |
|---|
| 1186 | } |
|---|
| 1187 | submit_button( __( 'Proceed' ), 'button', 'upgrade' ); |
|---|
| 1188 | ?> |
|---|
| 1189 | </div> |
|---|
| 1190 | </form> |
|---|
| 1191 | <?php |
|---|
| 1192 | return false; |
|---|
| 1193 | } |
|---|