From d2df9bc7cc9d4b3e53818470c5d0977c9a36677c Mon Sep 17 00:00:00 2001 From: Derek Allard Date: Sun, 15 Apr 2007 17:41:17 +0000 Subject: update pMachine to EllisLab update copyright year update Code Igniter to CodeIgniter --- system/libraries/Zip.php | 758 +++++++++++++++++++++++------------------------ 1 file changed, 379 insertions(+), 379 deletions(-) (limited to 'system/libraries/Zip.php') diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php index 1ff175fe2..377c38741 100644 --- a/system/libraries/Zip.php +++ b/system/libraries/Zip.php @@ -1,380 +1,380 @@ -_add_dir($dir); - } - } - - // -------------------------------------------------------------------- - - /** - * Add Directory - * - * @access private - * @param string the directory name - * @return void - */ - function _add_dir($dir) - { - $dir = str_replace("\\", "/", $dir); - - $this->zipdata[] = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" - .pack('V', 0) - .pack('V', 0) - .pack('V', 0) - .pack('v', strlen($dir)) - .pack('v', 0) - .$dir - .pack('V', 0) - .pack('V', 0) - .pack('V', 0); - - $newoffset = strlen(implode('', $this->zipdata)); - - $record = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" - .pack('V',0) - .pack('V',0) - .pack('V',0) - .pack('v', strlen($dir)) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('V', 16) - .pack('V', $this->offset) - .$dir; - - $this->offset = $newoffset; - $this->directory[] = $record; - } - - // -------------------------------------------------------------------- - - /** - * Add Data to Zip - * - * Lets you add files to the archive. If the path is included - * in the filename it will be placed within a directory. Make - * sure you use add_dir() first to create the folder. - * - * @access public - * @param mixed - * @param string - * @return void - */ - function add_data($filepath, $data = NULL) - { - if (is_array($filepath)) - { - foreach ($filepath as $path => $data) - { - $this->_add_data($path, $data); - } - } - else - { - $this->_add_data($filepath, $data); - } - } - - // -------------------------------------------------------------------- - - /** - * Add Data to Zip - * - * @access private - * @param string the file name/path - * @param string the data to be encoded - * @return void - */ - function _add_data($filepath, $data) - { - $filepath = str_replace("\\", "/", $filepath); - - $oldlen = strlen($data); - $crc32 = crc32($data); - - $gzdata = gzcompress($data); - $gzdata = substr(substr($gzdata, 0, strlen($gzdata) - 4), 2); - $newlen = strlen($gzdata); - - $this->zipdata[] = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" - .pack('V', $crc32) - .pack('V', $newlen) - .pack('V', $oldlen) - .pack('v', strlen($filepath)) - .pack('v', 0) - .$filepath - .$gzdata - .pack('V', $crc32) - .pack('V', $newlen) - .pack('V', $oldlen); - - $newoffset = strlen(implode("", $this->zipdata)); - - $record = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" - .pack('V', $crc32) - .pack('V', $newlen) - .pack('V', $oldlen) - .pack('v', strlen($filepath)) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('v', 0) - .pack('V', 32) - .pack('V', $this->offset); - - $this->offset = $newoffset; - $this->directory[] = $record.$filepath; - } - - // -------------------------------------------------------------------- - - /** - * Read the contents of a file and add it to the zip - * - * @access public - * @return bool - */ - function read_file($path, $preserve_filepath = FALSE) - { - if ( ! file_exists($path)) - { - return FALSE; - } - - if (FALSE !== ($data = file_get_contents($path))) - { - $name = str_replace("\\", "/", $path); - - if ($preserve_filepath === FALSE) - { - $name = preg_replace("|.*/(.+)|", "\\1", $name); - } - - $this->add_data($name, $data); - return TRUE; - } - return FALSE; - } - - // ------------------------------------------------------------------------ - - /** - * Read a directory and add it to the zip. - * - * This function recursively reads a folder and everything it contains (including - * sub-folders) and creates a zip based on it. Whatever directory structure - * is in the original file path will be recreated in the zip file. - * - * @access public - * @param string path to source - * @return bool - */ - function read_dir($path) - { - if ($fp = @opendir($path)) - { - while (FALSE !== ($file = readdir($fp))) - { - if (@is_dir($path.$file) && substr($file, 0, 1) != '.') - { - $this->read_dir($path.$file."/"); - } - elseif (substr($file, 0, 1) != ".") - { - if (FALSE !== ($data = file_get_contents($path.$file))) - { - $this->add_data(str_replace("\\", "/", $path).$file, $data); - } - } - } - return TRUE; - } - } - - // -------------------------------------------------------------------- - - /** - * Get the Zip file - * - * @access public - * @return binary string - */ - function get_zip() - { - // We cache the zip data so multiple calls - // do not require recompiling - if ($this->zipfile != '') - { - return $this->zipfile; - } - - // Is there any data to return? - if (count($this->zipdata) == 0) - { - return FALSE; - } - - $data = implode('', $this->zipdata); - $dir = implode('', $this->directory); - - $this->zipfile = $data.$dir."\x50\x4b\x05\x06\x00\x00\x00\x00" - .pack('v', sizeof($this->directory)) - .pack('v', sizeof($this->directory)) - .pack('V', strlen($dir)) - .pack('V', strlen($data)) - ."\x00\x00"; - - return $this->zipfile; - } - - // -------------------------------------------------------------------- - - /** - * Write File to the specified directory - * - * Lets you write a file - * - * @access public - * @param string the file name - * @param string the data to be encoded - * @return bool - */ - function archive($filepath) - { - if ( ! ($fp = @fopen($filepath, "wb"))) - { - return FALSE; - } - - flock($fp, LOCK_EX); - fwrite($fp, $this->get_zip()); - flock($fp, LOCK_UN); - fclose($fp); - - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Download - * - * @access public - * @param string the file name - * @param string the data to be encoded - * @return bool - */ - function download($filename = 'backup.zip') - { - if ( ! preg_match("|.+?\.zip$|", $filename)) - { - $filename .= '.zip'; - } - - if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) - { - header('Content-Type: application/x-zip'); - header('Content-Disposition: inline; filename="'.$filename.'"'); - header('Expires: 0'); - header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); - header("Content-Transfer-Encoding: binary"); - header('Pragma: public'); - header("Content-Length: ".strlen($this->get_zip())); - } - else - { - header('Content-Type: application/x-zip'); - header('Content-Disposition: attachment; filename="'.$filename.'"'); - header("Content-Transfer-Encoding: binary"); - header('Expires: 0'); - header('Pragma: no-cache'); - header("Content-Length: ".strlen($this->get_zip())); - } - - echo $this->get_zip(); - } - - // -------------------------------------------------------------------- - - /** - * Initialize Data - * - * Lets you clear current zip data. Useful if you need to create - * multiple zips with different data. - * - * @access public - * @return void - */ - function clear_data() - { - $this->zipfile = ''; - $this->zipdata = array(); - $this->directory = array(); - $this->offset = array(); - } - -} +_add_dir($dir); + } + } + + // -------------------------------------------------------------------- + + /** + * Add Directory + * + * @access private + * @param string the directory name + * @return void + */ + function _add_dir($dir) + { + $dir = str_replace("\\", "/", $dir); + + $this->zipdata[] = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" + .pack('V', 0) + .pack('V', 0) + .pack('V', 0) + .pack('v', strlen($dir)) + .pack('v', 0) + .$dir + .pack('V', 0) + .pack('V', 0) + .pack('V', 0); + + $newoffset = strlen(implode('', $this->zipdata)); + + $record = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" + .pack('V',0) + .pack('V',0) + .pack('V',0) + .pack('v', strlen($dir)) + .pack('v', 0) + .pack('v', 0) + .pack('v', 0) + .pack('v', 0) + .pack('V', 16) + .pack('V', $this->offset) + .$dir; + + $this->offset = $newoffset; + $this->directory[] = $record; + } + + // -------------------------------------------------------------------- + + /** + * Add Data to Zip + * + * Lets you add files to the archive. If the path is included + * in the filename it will be placed within a directory. Make + * sure you use add_dir() first to create the folder. + * + * @access public + * @param mixed + * @param string + * @return void + */ + function add_data($filepath, $data = NULL) + { + if (is_array($filepath)) + { + foreach ($filepath as $path => $data) + { + $this->_add_data($path, $data); + } + } + else + { + $this->_add_data($filepath, $data); + } + } + + // -------------------------------------------------------------------- + + /** + * Add Data to Zip + * + * @access private + * @param string the file name/path + * @param string the data to be encoded + * @return void + */ + function _add_data($filepath, $data) + { + $filepath = str_replace("\\", "/", $filepath); + + $oldlen = strlen($data); + $crc32 = crc32($data); + + $gzdata = gzcompress($data); + $gzdata = substr(substr($gzdata, 0, strlen($gzdata) - 4), 2); + $newlen = strlen($gzdata); + + $this->zipdata[] = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" + .pack('V', $crc32) + .pack('V', $newlen) + .pack('V', $oldlen) + .pack('v', strlen($filepath)) + .pack('v', 0) + .$filepath + .$gzdata + .pack('V', $crc32) + .pack('V', $newlen) + .pack('V', $oldlen); + + $newoffset = strlen(implode("", $this->zipdata)); + + $record = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" + .pack('V', $crc32) + .pack('V', $newlen) + .pack('V', $oldlen) + .pack('v', strlen($filepath)) + .pack('v', 0) + .pack('v', 0) + .pack('v', 0) + .pack('v', 0) + .pack('V', 32) + .pack('V', $this->offset); + + $this->offset = $newoffset; + $this->directory[] = $record.$filepath; + } + + // -------------------------------------------------------------------- + + /** + * Read the contents of a file and add it to the zip + * + * @access public + * @return bool + */ + function read_file($path, $preserve_filepath = FALSE) + { + if ( ! file_exists($path)) + { + return FALSE; + } + + if (FALSE !== ($data = file_get_contents($path))) + { + $name = str_replace("\\", "/", $path); + + if ($preserve_filepath === FALSE) + { + $name = preg_replace("|.*/(.+)|", "\\1", $name); + } + + $this->add_data($name, $data); + return TRUE; + } + return FALSE; + } + + // ------------------------------------------------------------------------ + + /** + * Read a directory and add it to the zip. + * + * This function recursively reads a folder and everything it contains (including + * sub-folders) and creates a zip based on it. Whatever directory structure + * is in the original file path will be recreated in the zip file. + * + * @access public + * @param string path to source + * @return bool + */ + function read_dir($path) + { + if ($fp = @opendir($path)) + { + while (FALSE !== ($file = readdir($fp))) + { + if (@is_dir($path.$file) && substr($file, 0, 1) != '.') + { + $this->read_dir($path.$file."/"); + } + elseif (substr($file, 0, 1) != ".") + { + if (FALSE !== ($data = file_get_contents($path.$file))) + { + $this->add_data(str_replace("\\", "/", $path).$file, $data); + } + } + } + return TRUE; + } + } + + // -------------------------------------------------------------------- + + /** + * Get the Zip file + * + * @access public + * @return binary string + */ + function get_zip() + { + // We cache the zip data so multiple calls + // do not require recompiling + if ($this->zipfile != '') + { + return $this->zipfile; + } + + // Is there any data to return? + if (count($this->zipdata) == 0) + { + return FALSE; + } + + $data = implode('', $this->zipdata); + $dir = implode('', $this->directory); + + $this->zipfile = $data.$dir."\x50\x4b\x05\x06\x00\x00\x00\x00" + .pack('v', sizeof($this->directory)) + .pack('v', sizeof($this->directory)) + .pack('V', strlen($dir)) + .pack('V', strlen($data)) + ."\x00\x00"; + + return $this->zipfile; + } + + // -------------------------------------------------------------------- + + /** + * Write File to the specified directory + * + * Lets you write a file + * + * @access public + * @param string the file name + * @param string the data to be encoded + * @return bool + */ + function archive($filepath) + { + if ( ! ($fp = @fopen($filepath, "wb"))) + { + return FALSE; + } + + flock($fp, LOCK_EX); + fwrite($fp, $this->get_zip()); + flock($fp, LOCK_UN); + fclose($fp); + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Download + * + * @access public + * @param string the file name + * @param string the data to be encoded + * @return bool + */ + function download($filename = 'backup.zip') + { + if ( ! preg_match("|.+?\.zip$|", $filename)) + { + $filename .= '.zip'; + } + + if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) + { + header('Content-Type: application/x-zip'); + header('Content-Disposition: inline; filename="'.$filename.'"'); + header('Expires: 0'); + header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); + header("Content-Transfer-Encoding: binary"); + header('Pragma: public'); + header("Content-Length: ".strlen($this->get_zip())); + } + else + { + header('Content-Type: application/x-zip'); + header('Content-Disposition: attachment; filename="'.$filename.'"'); + header("Content-Transfer-Encoding: binary"); + header('Expires: 0'); + header('Pragma: no-cache'); + header("Content-Length: ".strlen($this->get_zip())); + } + + echo $this->get_zip(); + } + + // -------------------------------------------------------------------- + + /** + * Initialize Data + * + * Lets you clear current zip data. Useful if you need to create + * multiple zips with different data. + * + * @access public + * @return void + */ + function clear_data() + { + $this->zipfile = ''; + $this->zipdata = array(); + $this->directory = array(); + $this->offset = array(); + } + +} ?> \ No newline at end of file -- cgit v1.2.3-24-g4f1b