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-rw-r--r--system/libraries/Zip.php60
1 files changed, 49 insertions, 11 deletions
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index aae62d74d..2c4bd255d 100644
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -37,10 +37,13 @@ class CI_Zip {
var $entries = 0;
var $file_num = 0;
var $offset = 0;
+ var $now;
function CI_Zip()
{
log_message('debug', "Zip Compression Class Initialized");
+
+ $this->now = time();
}
// --------------------------------------------------------------------
@@ -63,10 +66,33 @@ 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 $time;
+ }
+
// --------------------------------------------------------------------
/**
@@ -76,12 +102,14 @@ class CI_Zip {
* @param string the directory name
* @return void
*/
- function _add_dir($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 +122,9 @@ 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', $file_mdate)
.pack('V',0) // crc32
.pack('V',0) // compressed filesize
.pack('V',0) // uncompressed filesize
@@ -126,17 +156,21 @@ class CI_Zip {
* @return void
*/
function add_data($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'], $file_data['file_mdate']);
}
}
@@ -150,7 +184,7 @@ class CI_Zip {
* @param string the data to be encoded
* @return void
*/
- function _add_data($filepath, $data)
+ function _add_data($filepath, $data, $file_mtime, $file_mdate)
{
$filepath = str_replace("\\", "/", $filepath);
@@ -162,7 +196,9 @@ 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', $uncompressed_size)
@@ -172,7 +208,9 @@ class CI_Zip {
.$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)