X-Git-Url: http://git.onelab.eu/?p=www-register-wizard.git;a=blobdiff_plain;f=libraries%2FZip.php;h=7318815903d59368d6ce92d261d1be637d325240;hp=c15255a85b8e812e17318b4f325113f2ede9ca09;hb=4afb2fe256f094a1caf6bff14f51c6a88938cc9f;hpb=6907967d36358724c676a7998f55fc34e40c3b21 diff --git a/libraries/Zip.php b/libraries/Zip.php index c15255a..7318815 100644 --- a/libraries/Zip.php +++ b/libraries/Zip.php @@ -1,359 +1,359 @@ -_add_dir($dir); - } - } - - // -------------------------------------------------------------------- - - /** - * Add Directory - * - * @access private - * @param string the directory name - * @return void - */ - function _add_dir($dir) - { - $dir = str_replace("\\", "/", $dir); - - $this->zipdata .= - "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" - .pack('V', 0) // crc32 - .pack('V', 0) // compressed filesize - .pack('V', 0) // uncompressed filesize - .pack('v', strlen($dir)) // length of pathname - .pack('v', 0) // extra field length - .$dir - // below is "data descriptor" segment - .pack('V', 0) // crc32 - .pack('V', 0) // compressed filesize - .pack('V', 0); // uncompressed filesize - - $this->directory .= - "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" - .pack('V',0) // crc32 - .pack('V',0) // compressed filesize - .pack('V',0) // uncompressed filesize - .pack('v', strlen($dir)) // length of pathname - .pack('v', 0) // extra field length - .pack('v', 0) // file comment length - .pack('v', 0) // disk number start - .pack('v', 0) // internal file attributes - .pack('V', 16) // external file attributes - 'directory' bit set - .pack('V', $this->offset) // relative offset of local header - .$dir; - - $this->offset = strlen($this->zipdata); - $this->entries++; - } - - // -------------------------------------------------------------------- - - /** - * Add Data to Zip - * - * Lets you add files to the archive. If the path is included - * in the filename it will be placed within a directory. Make - * sure you use add_dir() first to create the folder. - * - * @access public - * @param mixed - * @param string - * @return void - */ - function add_data($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); - - $uncompressed_size = strlen($data); - $crc32 = crc32($data); - - $gzdata = gzcompress($data); - $gzdata = substr($gzdata, 2, -4); - $compressed_size = strlen($gzdata); - - $this->zipdata .= - "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" - .pack('V', $crc32) - .pack('V', $compressed_size) - .pack('V', $uncompressed_size) - .pack('v', strlen($filepath)) // length of filename - .pack('v', 0) // extra field length - .$filepath - .$gzdata; // "file data" segment - - $this->directory .= - "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" - .pack('V', $crc32) - .pack('V', $compressed_size) - .pack('V', $uncompressed_size) - .pack('v', strlen($filepath)) // length of filename - .pack('v', 0) // extra field length - .pack('v', 0) // file comment length - .pack('v', 0) // disk number start - .pack('v', 0) // internal file attributes - .pack('V', 32) // external file attributes - 'archive' bit set - .pack('V', $this->offset) // relative offset of local header - .$filepath; - - $this->offset = strlen($this->zipdata); - $this->entries++; - $this->file_num++; - } - - // -------------------------------------------------------------------- - - /** - * Read the contents of a file and add it to the zip - * - * @access public - * @return bool - */ - function read_file($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, $data); - } - } - } - return TRUE; - } - } - - // -------------------------------------------------------------------- - - /** - * Get the Zip file - * - * @access public - * @return binary string - */ - function get_zip() - { - // Is there any data to return? - if ($this->entries == 0) - { - return FALSE; - } - - $zip_data = $this->zipdata; - $zip_data .= $this->directory."\x50\x4b\x05\x06\x00\x00\x00\x00"; - $zip_data .= pack('v', $this->entries); // total # of entries "on this disk" - $zip_data .= pack('v', $this->entries); // total # of entries overall - $zip_data .= pack('V', strlen($this->directory)); // size of central dir - $zip_data .= pack('V', strlen($this->zipdata)); // offset to start of central dir - $zip_data .= "\x00\x00"; // .zip file comment length - - return $zip_data; - } - - // -------------------------------------------------------------------- - - /** - * Write File to the specified directory - * - * Lets you write a file - * - * @access public - * @param string the file name - * @return bool - */ - function archive($filepath) - { - if ( ! ($fp = @fopen($filepath, FOPEN_WRITE_CREATE_DESTRUCTIVE))) - { - 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'; - } - - $zip_content =& $this->get_zip(); - - $CI =& get_instance(); - $CI->load->helper('download'); - - force_download($filename, $zip_content); - } - - // -------------------------------------------------------------------- - - /** - * 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->zipdata = ''; - $this->directory = ''; - $this->entries = 0; - $this->file_num = 0; - $this->offset = 0; - } - -} - -/* End of file Zip.php */ +_add_dir($dir); + } + } + + // -------------------------------------------------------------------- + + /** + * Add Directory + * + * @access private + * @param string the directory name + * @return void + */ + function _add_dir($dir) + { + $dir = str_replace("\\", "/", $dir); + + $this->zipdata .= + "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" + .pack('V', 0) // crc32 + .pack('V', 0) // compressed filesize + .pack('V', 0) // uncompressed filesize + .pack('v', strlen($dir)) // length of pathname + .pack('v', 0) // extra field length + .$dir + // below is "data descriptor" segment + .pack('V', 0) // crc32 + .pack('V', 0) // compressed filesize + .pack('V', 0); // uncompressed filesize + + $this->directory .= + "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" + .pack('V',0) // crc32 + .pack('V',0) // compressed filesize + .pack('V',0) // uncompressed filesize + .pack('v', strlen($dir)) // length of pathname + .pack('v', 0) // extra field length + .pack('v', 0) // file comment length + .pack('v', 0) // disk number start + .pack('v', 0) // internal file attributes + .pack('V', 16) // external file attributes - 'directory' bit set + .pack('V', $this->offset) // relative offset of local header + .$dir; + + $this->offset = strlen($this->zipdata); + $this->entries++; + } + + // -------------------------------------------------------------------- + + /** + * Add Data to Zip + * + * Lets you add files to the archive. If the path is included + * in the filename it will be placed within a directory. Make + * sure you use add_dir() first to create the folder. + * + * @access public + * @param mixed + * @param string + * @return void + */ + function add_data($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); + + $uncompressed_size = strlen($data); + $crc32 = crc32($data); + + $gzdata = gzcompress($data); + $gzdata = substr($gzdata, 2, -4); + $compressed_size = strlen($gzdata); + + $this->zipdata .= + "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" + .pack('V', $crc32) + .pack('V', $compressed_size) + .pack('V', $uncompressed_size) + .pack('v', strlen($filepath)) // length of filename + .pack('v', 0) // extra field length + .$filepath + .$gzdata; // "file data" segment + + $this->directory .= + "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00" + .pack('V', $crc32) + .pack('V', $compressed_size) + .pack('V', $uncompressed_size) + .pack('v', strlen($filepath)) // length of filename + .pack('v', 0) // extra field length + .pack('v', 0) // file comment length + .pack('v', 0) // disk number start + .pack('v', 0) // internal file attributes + .pack('V', 32) // external file attributes - 'archive' bit set + .pack('V', $this->offset) // relative offset of local header + .$filepath; + + $this->offset = strlen($this->zipdata); + $this->entries++; + $this->file_num++; + } + + // -------------------------------------------------------------------- + + /** + * Read the contents of a file and add it to the zip + * + * @access public + * @return bool + */ + function read_file($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, $data); + } + } + } + return TRUE; + } + } + + // -------------------------------------------------------------------- + + /** + * Get the Zip file + * + * @access public + * @return binary string + */ + function get_zip() + { + // Is there any data to return? + if ($this->entries == 0) + { + return FALSE; + } + + $zip_data = $this->zipdata; + $zip_data .= $this->directory."\x50\x4b\x05\x06\x00\x00\x00\x00"; + $zip_data .= pack('v', $this->entries); // total # of entries "on this disk" + $zip_data .= pack('v', $this->entries); // total # of entries overall + $zip_data .= pack('V', strlen($this->directory)); // size of central dir + $zip_data .= pack('V', strlen($this->zipdata)); // offset to start of central dir + $zip_data .= "\x00\x00"; // .zip file comment length + + return $zip_data; + } + + // -------------------------------------------------------------------- + + /** + * Write File to the specified directory + * + * Lets you write a file + * + * @access public + * @param string the file name + * @return bool + */ + function archive($filepath) + { + if ( ! ($fp = @fopen($filepath, FOPEN_WRITE_CREATE_DESTRUCTIVE))) + { + 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'; + } + + $zip_content =& $this->get_zip(); + + $CI =& get_instance(); + $CI->load->helper('download'); + + force_download($filename, $zip_content); + } + + // -------------------------------------------------------------------- + + /** + * 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->zipdata = ''; + $this->directory = ''; + $this->entries = 0; + $this->file_num = 0; + $this->offset = 0; + } + +} + +/* End of file Zip.php */ /* Location: ./system/libraries/Zip.php */ \ No newline at end of file