diff options
Diffstat (limited to 'system/libraries/Zip.php')
| -rwxr-xr-x[-rw-r--r--] | system/libraries/Zip.php | 156 |
1 files changed, 110 insertions, 46 deletions
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php index af50ca1cb..80633c708 100644..100755 --- a/system/libraries/Zip.php +++ b/system/libraries/Zip.php @@ -2,11 +2,11 @@ /** * CodeIgniter * - * An open source application development framework for PHP 4.3.2 or newer + * An open source application development framework for PHP 5.1.6 or newer * * @package CodeIgniter * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2010, EllisLab, Inc. + * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. * @license http://codeigniter.com/user_guide/license.html * @link http://codeigniter.com * @since Version 1.0 @@ -32,15 +32,21 @@ */ class CI_Zip { - var $zipdata = ''; - var $directory = ''; - var $entries = 0; - var $file_num = 0; + var $zipdata = ''; + var $directory = ''; + var $entries = 0; + var $file_num = 0; var $offset = 0; + var $now; - function CI_Zip() + /** + * Constructor + */ + public function __construct() { log_message('debug', "Zip Compression Class Initialized"); + + $this->now = time(); } // -------------------------------------------------------------------- @@ -63,25 +69,50 @@ class CI_Zip { $dir .= '/'; } - $this->_add_dir($dir); + $dir_time = $this->_get_mod_time($dir); + + $this->_add_dir($dir, $dir_time['file_mtime'], $dir_time['file_mdate']); } } // -------------------------------------------------------------------- /** + * Get file/directory modification time + * + * If this is a newly created file/dir, we will set the time to 'now' + * + * @param string path to file + * @return array filemtime/filemdate + */ + function _get_mod_time($dir) + { + // filemtime() will return false, but it does raise an error. + $date = (@filemtime($dir)) ? filemtime($dir) : getdate($this->now); + + $time['file_mtime'] = ($date['hours'] << 11) + ($date['minutes'] << 5) + $date['seconds'] / 2; + $time['file_mdate'] = (($date['year'] - 1980) << 9) + ($date['mon'] << 5) + $date['mday']; + + return $time; + } + + // -------------------------------------------------------------------- + + /** * Add Directory * * @access private * @param string the directory name * @return void */ - function _add_dir($dir) + function _add_dir($dir, $file_mtime, $file_mdate) { $dir = str_replace("\\", "/", $dir); $this->zipdata .= - "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00" + .pack('v', $file_mtime) + .pack('v', $file_mdate) .pack('V', 0) // crc32 .pack('V', 0) // compressed filesize .pack('V', 0) // uncompressed filesize @@ -94,7 +125,9 @@ class CI_Zip { .pack('V', 0); // uncompressed filesize $this->directory .= - "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00" + .pack('v', $file_mtime) + .pack('v', $file_mdate) .pack('V',0) // crc32 .pack('V',0) // compressed filesize .pack('V',0) // uncompressed filesize @@ -110,7 +143,7 @@ class CI_Zip { $this->offset = strlen($this->zipdata); $this->entries++; } - + // -------------------------------------------------------------------- /** @@ -124,19 +157,23 @@ class CI_Zip { * @param mixed * @param string * @return void - */ + */ function add_data($filepath, $data = NULL) { if (is_array($filepath)) { foreach ($filepath as $path => $data) { - $this->_add_data($path, $data); + $file_data = $this->_get_mod_time($path); + + $this->_add_data($path, $data, $file_data['file_mtime'], $file_data['file_mdate']); } } else { - $this->_add_data($filepath, $data); + $file_data = $this->_get_mod_time($filepath); + + $this->_add_data($filepath, $data, $file_data['file_mtime'], $file_data['file_mdate']); } } @@ -149,8 +186,8 @@ class CI_Zip { * @param string the file name/path * @param string the data to be encoded * @return void - */ - function _add_data($filepath, $data) + */ + function _add_data($filepath, $data, $file_mtime, $file_mdate) { $filepath = str_replace("\\", "/", $filepath); @@ -162,7 +199,9 @@ class CI_Zip { $compressed_size = strlen($gzdata); $this->zipdata .= - "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" + "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00" + .pack('v', $file_mtime) + .pack('v', $file_mdate) .pack('V', $crc32) .pack('V', $compressed_size) .pack('V', $uncompressed_size) @@ -172,7 +211,9 @@ class CI_Zip { .$gzdata; // "file data" segment $this->directory .= - "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" + "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00" + .pack('v', $file_mtime) + .pack('v', $file_mdate) .pack('V', $crc32) .pack('V', $compressed_size) .pack('V', $uncompressed_size) @@ -189,7 +230,7 @@ class CI_Zip { $this->entries++; $this->file_num++; } - + // -------------------------------------------------------------------- /** @@ -197,7 +238,7 @@ class CI_Zip { * * @access public * @return bool - */ + */ function read_file($path, $preserve_filepath = FALSE) { if ( ! file_exists($path)) @@ -208,7 +249,7 @@ class CI_Zip { if (FALSE !== ($data = file_get_contents($path))) { $name = str_replace("\\", "/", $path); - + if ($preserve_filepath === FALSE) { $name = preg_replace("|.*/(.+)|", "\\1", $name); @@ -221,7 +262,7 @@ class CI_Zip { } // ------------------------------------------------------------------------ - + /** * Read a directory and add it to the zip. * @@ -232,27 +273,48 @@ class CI_Zip { * @access public * @param string path to source * @return bool - */ - function read_dir($path) - { - if ($fp = @opendir($path)) + */ + function read_dir($path, $preserve_filepath = TRUE, $root_path = NULL) + { + if ( ! $fp = @opendir($path)) { - while (FALSE !== ($file = readdir($fp))) + return FALSE; + } + + // Set the original directory root for child dir's to use as relative + if ($root_path === NULL) + { + $root_path = dirname($path).'/'; + } + + while (FALSE !== ($file = readdir($fp))) + { + if(substr($file, 0, 1) == '.') { - if (@is_dir($path.$file) && substr($file, 0, 1) != '.') - { - $this->read_dir($path.$file."/"); - } - elseif (substr($file, 0, 1) != ".") + continue; + } + + if (@is_dir($path.$file)) + { + $this->read_dir($path.$file."/", $preserve_filepath, $root_path); + } + else + { + if (FALSE !== ($data = file_get_contents($path.$file))) { - if (FALSE !== ($data = file_get_contents($path.$file))) - { - $this->add_data(str_replace("\\", "/", $path).$file, $data); + $name = str_replace("\\", "/", $path); + + if ($preserve_filepath === FALSE) + { + $name = str_replace($root_path, '', $name); } + + $this->add_data($name.$file, $data); } } - return TRUE; } + + return TRUE; } // -------------------------------------------------------------------- @@ -262,7 +324,7 @@ class CI_Zip { * * @access public * @return binary string - */ + */ function get_zip() { // Is there any data to return? @@ -281,7 +343,7 @@ class CI_Zip { return $zip_data; } - + // -------------------------------------------------------------------- /** @@ -292,7 +354,7 @@ class CI_Zip { * @access public * @param string the file name * @return bool - */ + */ function archive($filepath) { if ( ! ($fp = @fopen($filepath, FOPEN_WRITE_CREATE_DESTRUCTIVE))) @@ -300,12 +362,12 @@ class CI_Zip { return FALSE; } - flock($fp, LOCK_EX); + flock($fp, LOCK_EX); fwrite($fp, $this->get_zip()); flock($fp, LOCK_UN); fclose($fp); - return TRUE; + return TRUE; } // -------------------------------------------------------------------- @@ -325,11 +387,13 @@ class CI_Zip { $filename .= '.zip'; } - $zip_content =& $this->get_zip(); - $CI =& get_instance(); $CI->load->helper('download'); + $get_zip = $this->get_zip(); + + $zip_content =& $get_zip; + force_download($filename, $zip_content); } @@ -343,7 +407,7 @@ class CI_Zip { * * @access public * @return void - */ + */ function clear_data() { $this->zipdata = ''; @@ -352,7 +416,7 @@ class CI_Zip { $this->file_num = 0; $this->offset = 0; } - + } /* End of file Zip.php */ |