WordPress/wp-admin/includes/class-wp-filesystem-base.php

186 lines
5.6 KiB
PHP

<?php
/**
* Base WordPress Filesystem.
*
* @package WordPress
* @subpackage Filesystem
*/
/**
* Base WordPress Filesystem class for which Filesystem implementations extend
*
* @since 2.5
*/
class WP_Filesystem_Base {
var $verbose = false;
var $cache = array();
var $method = '';
function abspath() {
if ( defined('FTP_BASE') && strpos($this->method, 'ftp') !== false )
return FTP_BASE;
return $this->find_folder(ABSPATH);
}
function wp_content_dir() {
if ( defined('FTP_CONTENT_DIR') && strpos($this->method, 'ftp') !== false )
return FTP_CONTENT_DIR;
return $this->find_folder(WP_CONTENT_DIR);
}
function wp_plugins_dir() {
if ( defined('FTP_PLUGIN_DIR') && strpos($this->method, 'ftp') !== false )
return FTP_PLUGIN_DIR;
return $this->find_folder(WP_PLUGIN_DIR);
}
function wp_themes_dir() {
return $this->wp_content_dir() . '/themes';
}
//Back compat: use abspath() or wp_*_dir
function find_base_dir($base = '.', $echo = false) {
$this->verbose = $echo;
return $this->abspath();
}
//Back compat: use ::abspath() or ::wp_*_dir
function get_base_dir($base = '.', $echo = false) {
$this->verbose = $echo;
return $this->abspath();
}
function find_folder($folder) {
$folder = str_replace('\\', '/', $folder); //Windows Sanitiation
if ( isset($this->cache[ $folder ] ) )
return $this->cache[ $folder ];
if ( $this->exists($folder) ) { //Folder exists at that absolute path.
$this->cache[ $folder ] = $folder;
return $folder;
}
if( $return = $this->search_for_folder($folder) )
$this->cache[ $folder ] = $return;
return $return;
}
// Assumes $folder is windows sanitized;
// Assumes that the drive letter is safe to be stripped off, Should not be a problem for windows servers.
function search_for_folder($folder, $base = '.', $loop = false ) {
if ( empty( $base ) || '.' == $base )
$base = trailingslashit($this->cwd());
$folder = preg_replace('|^([a-z]{1}):|i', '', $folder); //Strip out windows driveletter if its there.
$folder_parts = explode('/', $folder);
$last_path = $folder_parts[ count($folder_parts) - 1 ];
$files = $this->dirlist( $base );
foreach ( $folder_parts as $key ) {
if ( $key == $last_path )
continue; //We want this to be caught by the next code block.
//Working from /home/ to /user/ to /wordpress/ see if that file exists within the current folder,
// If its found, change into it and follow through looking for it.
// If it cant find WordPress down that route, it'll continue onto the next folder level, and see if that matches, and so on.
// If it reaches the end, and still cant find it, it'll return false for the entire function.
if( isset($files[ $key ]) ){
//Lets try that folder:
$newdir = trailingslashit(path_join($base, $key));
if( $this->verbose )
printf( __('Changing to %s') . '<br/>', $newdir );
if( $ret = $this->search_for_folder( $folder, $newdir, $loop) )
return $ret;
}
}
//Only check this as a last resort, to prevent locating the incorrect install. All above proceeedures will fail quickly if this is the right branch to take.
if(isset( $files[ $last_path ] ) ) {
if( $this->verbose )
printf( __('Found %s') . '<br/>', $base . $last_path );
return $base . $last_path;
}
if( $loop )
return false;//Prevent tihs function looping again.
//As an extra last resort, Change back to / if the folder wasnt found. This comes into effect when the CWD is /home/user/ but WP is at /var/www/.... mainly dedicated setups.
return $this->search_for_folder($folder, '/', true);
}
//Common Helper functions.
function gethchmod($file){
//From the PHP.net page for ...?
$perms = $this->getchmod($file);
if (($perms & 0xC000) == 0xC000) // Socket
$info = 's';
elseif (($perms & 0xA000) == 0xA000) // Symbolic Link
$info = 'l';
elseif (($perms & 0x8000) == 0x8000) // Regular
$info = '-';
elseif (($perms & 0x6000) == 0x6000) // Block special
$info = 'b';
elseif (($perms & 0x4000) == 0x4000) // Directory
$info = 'd';
elseif (($perms & 0x2000) == 0x2000) // Character special
$info = 'c';
elseif (($perms & 0x1000) == 0x1000)// FIFO pipe
$info = 'p';
else // Unknown
$info = 'u';
// Owner
$info .= (($perms & 0x0100) ? 'r' : '-');
$info .= (($perms & 0x0080) ? 'w' : '-');
$info .= (($perms & 0x0040) ?
(($perms & 0x0800) ? 's' : 'x' ) :
(($perms & 0x0800) ? 'S' : '-'));
// Group
$info .= (($perms & 0x0020) ? 'r' : '-');
$info .= (($perms & 0x0010) ? 'w' : '-');
$info .= (($perms & 0x0008) ?
(($perms & 0x0400) ? 's' : 'x' ) :
(($perms & 0x0400) ? 'S' : '-'));
// World
$info .= (($perms & 0x0004) ? 'r' : '-');
$info .= (($perms & 0x0002) ? 'w' : '-');
$info .= (($perms & 0x0001) ?
(($perms & 0x0200) ? 't' : 'x' ) :
(($perms & 0x0200) ? 'T' : '-'));
return $info;
}
function getnumchmodfromh($mode) {
$realmode = "";
$legal = array("", "w", "r", "x", "-");
$attarray = preg_split("//", $mode);
for($i=0; $i < count($attarray); $i++)
if($key = array_search($attarray[$i], $legal))
$realmode .= $legal[$key];
$mode = str_pad($realmode, 9, '-');
$trans = array('-'=>'0', 'r'=>'4', 'w'=>'2', 'x'=>'1');
$mode = strtr($mode,$trans);
$newmode = '';
$newmode .= $mode[0] + $mode[1] + $mode[2];
$newmode .= $mode[3] + $mode[4] + $mode[5];
$newmode .= $mode[6] + $mode[7] + $mode[8];
return $newmode;
}
/**
* Determines if the string provided contains binary characters.
*
* @since 2.7
* @package WordPress
* @subpackage WP_Filesystem
*
* @param string $text String to test against
*
*/
function is_binary( $text ) {
return (bool) preg_match('|[^\x20-\x7E]|', $text); //chr(32)..chr(127)
}
}
?>