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-rw-r--r--system/helpers/file_helper.php373
1 files changed, 167 insertions, 206 deletions
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 3931667fd..3834d4895 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -1,90 +1,77 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
+ *
+ * NOTICE OF LICENSE
+ *
+ * Licensed under the Open Software License version 3.0
+ *
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst. It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
*
* @package CodeIgniter
- * @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
+ * @author EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
+ * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* CodeIgniter File Helpers
*
* @package CodeIgniter
* @subpackage Helpers
* @category Helpers
- * @author ExpressionEngine Dev Team
- * @link http://codeigniter.com/user_guide/helpers/file_helpers.html
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/helpers/file_helper.html
*/
// ------------------------------------------------------------------------
-/**
- * Read File
- *
- * Opens the file specfied in the path and returns it as a string.
- *
- * @access public
- * @param string path to file
- * @return string
- */
if ( ! function_exists('read_file'))
{
+ /**
+ * Read File
+ *
+ * Opens the file specfied in the path and returns it as a string.
+ *
+ * This function is DEPRECATED and should be removed in
+ * CodeIgniter 3.1+. Use file_get_contents() instead.
+ *
+ * @deprecated
+ * @param string path to file
+ * @return string
+ */
function read_file($file)
{
- if ( ! file_exists($file))
- {
- return FALSE;
- }
-
- if (function_exists('file_get_contents'))
- {
- return file_get_contents($file);
- }
-
- if ( ! $fp = @fopen($file, FOPEN_READ))
- {
- return FALSE;
- }
-
- flock($fp, LOCK_SH);
-
- $data = '';
- if (filesize($file) > 0)
- {
- $data =& fread($fp, filesize($file));
- }
-
- flock($fp, LOCK_UN);
- fclose($fp);
-
- return $data;
+ return @file_get_contents($file);
}
}
// ------------------------------------------------------------------------
-/**
- * Write File
- *
- * Writes data to the file specified in the path.
- * Creates a new file if non-existent.
- *
- * @access public
- * @param string path to file
- * @param string file data
- * @return bool
- */
if ( ! function_exists('write_file'))
{
+ /**
+ * Write File
+ *
+ * Writes data to the file specified in the path.
+ * Creates a new file if non-existent.
+ *
+ * @param string path to file
+ * @param string file data
+ * @param int
+ * @return bool
+ */
function write_file($path, $data, $mode = FOPEN_WRITE_CREATE_DESTRUCTIVE)
{
if ( ! $fp = @fopen($path, $mode))
@@ -103,22 +90,23 @@ if ( ! function_exists('write_file'))
// ------------------------------------------------------------------------
-/**
- * Delete Files
- *
- * Deletes all files contained in the supplied directory path.
- * Files must be writable or owned by the system in order to be deleted.
- * If the second parameter is set to TRUE, any directories contained
- * within the supplied base directory will be nuked as well.
- *
- * @access public
- * @param string path to file
- * @param bool whether to delete any directories found in the path
- * @return bool
- */
if ( ! function_exists('delete_files'))
{
- function delete_files($path, $del_dir = FALSE, $level = 0)
+ /**
+ * Delete Files
+ *
+ * Deletes all files contained in the supplied directory path.
+ * Files must be writable or owned by the system in order to be deleted.
+ * If the second parameter is set to TRUE, any directories contained
+ * within the supplied base directory will be nuked as well.
+ *
+ * @param string path to file
+ * @param bool whether to delete any directories found in the path
+ * @param int
+ * @param bool whether to skip deleting .htaccess and index page files
+ * @return bool
+ */
+ function delete_files($path, $del_dir = FALSE, $level = 0, $htdocs = FALSE)
{
// Trim the trailing slash
$path = rtrim($path, DIRECTORY_SEPARATOR);
@@ -130,25 +118,21 @@ if ( ! function_exists('delete_files'))
while (FALSE !== ($filename = @readdir($current_dir)))
{
- if ($filename != "." and $filename != "..")
+ if ($filename !== '.' && $filename !== '..')
{
- if (is_dir($path.DIRECTORY_SEPARATOR.$filename))
+ if (is_dir($path.DIRECTORY_SEPARATOR.$filename) && $filename[0] !== '.')
{
- // Ignore empty folders
- if (substr($filename, 0, 1) != '.')
- {
- delete_files($path.DIRECTORY_SEPARATOR.$filename, $del_dir, $level + 1);
- }
+ delete_files($path.DIRECTORY_SEPARATOR.$filename, $del_dir, $level + 1, $htdocs);
}
- else
+ elseif ($htdocs === TRUE && ! preg_match('/^(\.htaccess|index\.(html|htm|php)|web\.config)$/i', $filename))
{
- unlink($path.DIRECTORY_SEPARATOR.$filename);
+ @unlink($path.DIRECTORY_SEPARATOR.$filename);
}
}
}
@closedir($current_dir);
- if ($del_dir == TRUE AND $level > 0)
+ if ($del_dir === TRUE && $level > 0)
{
return @rmdir($path);
}
@@ -159,20 +143,19 @@ if ( ! function_exists('delete_files'))
// ------------------------------------------------------------------------
-/**
- * Get Filenames
- *
- * Reads the specified directory and builds an array containing the filenames.
- * Any sub-folders contained within the specified path are read as well.
- *
- * @access public
- * @param string path to source
- * @param bool whether to include the path as part of the filename
- * @param bool internal variable to determine recursion status - do not use in calls
- * @return array
- */
if ( ! function_exists('get_filenames'))
{
+ /**
+ * Get Filenames
+ *
+ * Reads the specified directory and builds an array containing the filenames.
+ * Any sub-folders contained within the specified path are read as well.
+ *
+ * @param string path to source
+ * @param bool whether to include the path as part of the filename
+ * @param bool internal variable to determine recursion status - do not use in calls
+ * @return array
+ */
function get_filenames($source_dir, $include_path = FALSE, $_recursion = FALSE)
{
static $_filedata = array();
@@ -188,42 +171,41 @@ if ( ! function_exists('get_filenames'))
while (FALSE !== ($file = readdir($fp)))
{
- if (@is_dir($source_dir.$file) && strncmp($file, '.', 1) !== 0)
+ if (@is_dir($source_dir.$file) && $file[0] !== '.')
{
get_filenames($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE);
}
- elseif (strncmp($file, '.', 1) !== 0)
+ elseif ($file[0] !== '.')
{
- $_filedata[] = ($include_path == TRUE) ? $source_dir.$file : $file;
+ $_filedata[] = ($include_path === TRUE) ? $source_dir.$file : $file;
}
}
+ closedir($fp);
+
return $_filedata;
}
- else
- {
- return FALSE;
- }
+
+ return FALSE;
}
}
// --------------------------------------------------------------------
-/**
- * Get Directory File Information
- *
- * Reads the specified directory and builds an array containing the filenames,
- * filesize, dates, and permissions
- *
- * Any sub-folders contained within the specified path are read as well.
- *
- * @access public
- * @param string path to source
- * @param bool Look only at the top level directory specified?
- * @param bool internal variable to determine recursion status - do not use in calls
- * @return array
- */
if ( ! function_exists('get_dir_file_info'))
{
+ /**
+ * Get Directory File Information
+ *
+ * Reads the specified directory and builds an array containing the filenames,
+ * filesize, dates, and permissions
+ *
+ * Any sub-folders contained within the specified path are read as well.
+ *
+ * @param string path to source
+ * @param bool Look only at the top level directory specified?
+ * @param bool internal variable to determine recursion status - do not use in calls
+ * @return array
+ */
function get_dir_file_info($source_dir, $top_level_only = TRUE, $_recursion = FALSE)
{
static $_filedata = array();
@@ -241,43 +223,41 @@ if ( ! function_exists('get_dir_file_info'))
// foreach (scandir($source_dir, 1) as $file) // In addition to being PHP5+, scandir() is simply not as fast
while (FALSE !== ($file = readdir($fp)))
{
- if (@is_dir($source_dir.$file) AND strncmp($file, '.', 1) !== 0 AND $top_level_only === FALSE)
+ if (@is_dir($source_dir.$file) && $file[0] !== '.' && $top_level_only === FALSE)
{
get_dir_file_info($source_dir.$file.DIRECTORY_SEPARATOR, $top_level_only, TRUE);
}
- elseif (strncmp($file, '.', 1) !== 0)
+ elseif ($file[0] !== '.')
{
$_filedata[$file] = get_file_info($source_dir.$file);
$_filedata[$file]['relative_path'] = $relative_path;
}
}
+ closedir($fp);
return $_filedata;
}
- else
- {
- return FALSE;
- }
+
+ return FALSE;
}
}
// --------------------------------------------------------------------
-/**
-* Get File Info
-*
-* Given a file and path, returns the name, path, size, date modified
-* Second parameter allows you to explicitly declare what information you want returned
-* Options are: name, server_path, size, date, readable, writable, executable, fileperms
-* Returns FALSE if the file cannot be found.
-*
-* @access public
-* @param string path to file
-* @param mixed array or comma separated string of information returned
-* @return array
-*/
if ( ! function_exists('get_file_info'))
{
+ /**
+ * Get File Info
+ *
+ * Given a file and path, returns the name, path, size, date modified
+ * Second parameter allows you to explicitly declare what information you want returned
+ * Options are: name, server_path, size, date, readable, writable, executable, fileperms
+ * Returns FALSE if the file cannot be found.
+ *
+ * @param string path to file
+ * @param mixed array or comma separated string of information returned
+ * @return array
+ */
function get_file_info($file, $returned_values = array('name', 'server_path', 'size', 'date'))
{
@@ -329,104 +309,87 @@ if ( ! function_exists('get_file_info'))
// --------------------------------------------------------------------
-/**
- * Get Mime by Extension
- *
- * Translates a file extension into a mime type based on config/mimes.php.
- * Returns FALSE if it can't determine the type, or open the mime config file
- *
- * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience
- * It should NOT be trusted, and should certainly NOT be used for security
- *
- * @access public
- * @param string path to file
- * @return mixed
- */
if ( ! function_exists('get_mime_by_extension'))
{
+ /**
+ * Get Mime by Extension
+ *
+ * Translates a file extension into a mime type based on config/mimes.php.
+ * Returns FALSE if it can't determine the type, or open the mime config file
+ *
+ * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience
+ * It should NOT be trusted, and should certainly NOT be used for security
+ *
+ * @param string path to file
+ * @return mixed
+ */
function get_mime_by_extension($file)
{
$extension = strtolower(substr(strrchr($file, '.'), 1));
- global $mimes;
+ static $mimes;
if ( ! is_array($mimes))
{
- if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes.php'))
- {
- include(APPPATH.'config/'.ENVIRONMENT.'/mimes.php');
- }
- elseif (is_file(APPPATH.'config/mimes.php'))
- {
- include(APPPATH.'config/mimes.php');
- }
+ $mimes =& get_mimes();
- if ( ! is_array($mimes))
+ if (empty($mimes))
{
return FALSE;
}
}
- if (array_key_exists($extension, $mimes))
+ if (isset($mimes[$extension]))
{
- if (is_array($mimes[$extension]))
- {
- // Multiple mime types, just give the first one
- return current($mimes[$extension]);
- }
- else
- {
- return $mimes[$extension];
- }
- }
- else
- {
- return FALSE;
+ return is_array($mimes[$extension])
+ ? current($mimes[$extension]) // Multiple mime types, just give the first one
+ : $mimes[$extension];
}
+
+ return FALSE;
}
}
// --------------------------------------------------------------------
-/**
- * Symbolic Permissions
- *
- * Takes a numeric value representing a file's permissions and returns
- * standard symbolic notation representing that value
- *
- * @access public
- * @param int
- * @return string
- */
if ( ! function_exists('symbolic_permissions'))
{
+ /**
+ * Symbolic Permissions
+ *
+ * Takes a numeric value representing a file's permissions and returns
+ * standard symbolic notation representing that value
+ *
+ * @param int
+ * @return string
+ */
function symbolic_permissions($perms)
{
- if (($perms & 0xC000) == 0xC000)
+ if (($perms & 0xC000) === 0xC000)
{
$symbolic = 's'; // Socket
}
- elseif (($perms & 0xA000) == 0xA000)
+ elseif (($perms & 0xA000) === 0xA000)
{
$symbolic = 'l'; // Symbolic Link
}
- elseif (($perms & 0x8000) == 0x8000)
+ elseif (($perms & 0x8000) === 0x8000)
{
$symbolic = '-'; // Regular
}
- elseif (($perms & 0x6000) == 0x6000)
+ elseif (($perms & 0x6000) === 0x6000)
{
$symbolic = 'b'; // Block special
}
- elseif (($perms & 0x4000) == 0x4000)
+ elseif (($perms & 0x4000) === 0x4000)
{
$symbolic = 'd'; // Directory
}
- elseif (($perms & 0x2000) == 0x2000)
+ elseif (($perms & 0x2000) === 0x2000)
{
$symbolic = 'c'; // Character special
}
- elseif (($perms & 0x1000) == 0x1000)
+ elseif (($perms & 0x1000) === 0x1000)
{
$symbolic = 'p'; // FIFO pipe
}
@@ -436,19 +399,19 @@ if ( ! function_exists('symbolic_permissions'))
}
// Owner
- $symbolic .= (($perms & 0x0100) ? 'r' : '-');
- $symbolic .= (($perms & 0x0080) ? 'w' : '-');
- $symbolic .= (($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-'));
+ $symbolic .= (($perms & 0x0100) ? 'r' : '-')
+ . (($perms & 0x0080) ? 'w' : '-')
+ . (($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-'));
// Group
- $symbolic .= (($perms & 0x0020) ? 'r' : '-');
- $symbolic .= (($perms & 0x0010) ? 'w' : '-');
- $symbolic .= (($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-'));
+ $symbolic .= (($perms & 0x0020) ? 'r' : '-')
+ . (($perms & 0x0010) ? 'w' : '-')
+ . (($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-'));
// World
- $symbolic .= (($perms & 0x0004) ? 'r' : '-');
- $symbolic .= (($perms & 0x0002) ? 'w' : '-');
- $symbolic .= (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-'));
+ $symbolic .= (($perms & 0x0004) ? 'r' : '-')
+ . (($perms & 0x0002) ? 'w' : '-')
+ . (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-'));
return $symbolic;
}
@@ -456,24 +419,22 @@ if ( ! function_exists('symbolic_permissions'))
// --------------------------------------------------------------------
-/**
- * Octal Permissions
- *
- * Takes a numeric value representing a file's permissions and returns
- * a three character string representing the file's octal permissions
- *
- * @access public
- * @param int
- * @return string
- */
if ( ! function_exists('octal_permissions'))
{
+ /**
+ * Octal Permissions
+ *
+ * Takes a numeric value representing a file's permissions and returns
+ * a three character string representing the file's octal permissions
+ *
+ * @param int
+ * @return string
+ */
function octal_permissions($perms)
{
return substr(sprintf('%o', $perms), -3);
}
}
-
/* End of file file_helper.php */
/* Location: ./system/helpers/file_helper.php */ \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-02 02:35:14 +0100