diff options
Diffstat (limited to 'system/helpers/file_helper.php')
| -rw-r--r-- | system/helpers/file_helper.php | 251 |
1 files changed, 115 insertions, 136 deletions
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php index 2d4b10e37..d53d986f9 100644 --- a/system/helpers/file_helper.php +++ b/system/helpers/file_helper.php @@ -2,7 +2,7 @@ /** * 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 * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter File Helpers * @@ -39,17 +37,16 @@ // ------------------------------------------------------------------------ -/** - * 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. + * + * @param string path to file + * @return string + */ function read_file($file) { if ( ! file_exists($file)) @@ -84,19 +81,19 @@ if ( ! function_exists('read_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, $mode)) @@ -115,22 +112,23 @@ if ( ! function_exists('write_file')) // ------------------------------------------------------------------------ -/** - * Delete Files - * - * Deletes all files contained in the supplied directory path. - * Files must be writable or owned by the system in order to be deleted. - * If the second parameter is set to TRUE, any directories contained - * within the supplied base directory will be nuked as well. - * - * @access public - * @param string path to file - * @param bool whether to delete any directories found in the path - * @return bool - */ if ( ! function_exists('delete_files')) { - function delete_files($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); @@ -142,21 +140,21 @@ 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) && $filename[0] !== '.') { - delete_files($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); } @@ -167,20 +165,19 @@ 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 $_filedata = array(); @@ -202,7 +199,7 @@ if ( ! function_exists('get_filenames')) } elseif ($file[0] !== '.') { - $_filedata[] = ($include_path == TRUE) ? $source_dir.$file : $file; + $_filedata[] = ($include_path === TRUE) ? $source_dir.$file : $file; } } closedir($fp); @@ -216,22 +213,21 @@ if ( ! function_exists('get_filenames')) // -------------------------------------------------------------------- -/** - * 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 $_filedata = array(); @@ -270,21 +266,20 @@ if ( ! function_exists('get_dir_file_info')) // -------------------------------------------------------------------- -/** -* Get File Info -* -* Given a file and path, returns the name, path, size, date modified -* Second parameter allows you to explicitly declare what information you want returned -* Options are: name, server_path, size, date, readable, writable, executable, fileperms -* Returns FALSE if the file cannot be found. -* -* @access public -* @param string path to file -* @param mixed array or comma separated string of information returned -* @return array -*/ if ( ! function_exists('get_file_info')) { + /** + * Get File Info + * + * Given a file and path, returns the name, path, size, date modified + * Second parameter allows you to explicitly declare what information you want returned + * Options are: name, server_path, size, date, readable, writable, executable, fileperms + * Returns FALSE if the file cannot be found. + * + * @param string path to file + * @param mixed array or comma separated string of information returned + * @return array + */ function get_file_info($file, $returned_values = array('name', 'server_path', 'size', 'date')) { @@ -336,55 +331,41 @@ if ( ! function_exists('get_file_info')) // -------------------------------------------------------------------- -/** - * Get Mime by Extension - * - * Translates a file extension into a mime type based on config/mimes.php. - * Returns FALSE if it can't determine the type, or open the mime config file - * - * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience - * It should NOT be trusted, and should certainly NOT be used for security - * - * @access public - * @param string path to file - * @return mixed - */ if ( ! function_exists('get_mime_by_extension')) { + /** + * Get Mime by Extension + * + * Translates a file extension into a mime type based on config/mimes.php. + * Returns FALSE if it can't determine the type, or open the mime config file + * + * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience + * It should NOT be trusted, and should certainly NOT be used for security + * + * @param string path to file + * @return mixed + */ function get_mime_by_extension($file) { $extension = strtolower(substr(strrchr($file, '.'), 1)); - global $mimes; + static $mimes; if ( ! is_array($mimes)) { - if (defined('ENVIRONMENT') && 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]; - } + return is_array($mimes[$extension]) + ? current($mimes[$extension]) // Multiple mime types, just give the first one + : $mimes[$extension]; } return FALSE; @@ -393,18 +374,17 @@ if ( ! function_exists('get_mime_by_extension')) // -------------------------------------------------------------------- -/** - * 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) @@ -461,18 +441,17 @@ 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); @@ -480,4 +459,4 @@ if ( ! function_exists('octal_permissions')) } /* End of file file_helper.php */ -/* Location: ./system/helpers/file_helper.php */ +/* Location: ./system/helpers/file_helper.php */
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