diff options
Diffstat (limited to 'phpBB/includes/functions_compress.php')
| -rw-r--r-- | phpBB/includes/functions_compress.php | 712 |
1 files changed, 0 insertions, 712 deletions
diff --git a/phpBB/includes/functions_compress.php b/phpBB/includes/functions_compress.php deleted file mode 100644 index eebc82b9d0..0000000000 --- a/phpBB/includes/functions_compress.php +++ /dev/null @@ -1,712 +0,0 @@ -<?php -/** -* -* @package phpBB3 -* @version $Id$ -* @copyright (c) 2005 phpBB Group -* @license http://opensource.org/licenses/gpl-license.php GNU Public License -* -*/ - -/** -* @ignore -*/ -if (!defined('IN_PHPBB')) -{ - exit; -} - -/** -* Class for handling archives (compression/decompression) -* @package phpBB3 -*/ -class compress -{ - protected $fp = 0; - - /** - * Add file to archive - */ - public function add_file($src, $src_rm_prefix = '', $src_add_prefix = '', $skip_files = '') - { - $skip_files = explode(',', $skip_files); - - // Remove rm prefix from src path - $src_path = ($src_rm_prefix) ? preg_replace('#^(' . preg_quote($src_rm_prefix, '#') . ')#', '', $src) : $src; - // Add src prefix - $src_path = ($src_add_prefix) ? ($src_add_prefix . ((substr($src_add_prefix, -1) != '/') ? '/' : '') . $src_path) : $src_path; - // Remove initial "/" if present - $src_path = (substr($src_path, 0, 1) == '/') ? substr($src_path, 1) : $src_path; - - if (is_file(PHPBB_ROOT_PATH . $src)) - { - $this->data($src_path, file_get_contents(PHPBB_ROOT_PATH . $src), false, stat(PHPBB_ROOT_PATH . $src)); - } - else if (is_dir(PHPBB_ROOT_PATH . $src)) - { - // Clean up path, add closing / if not present - $src_path = ($src_path && substr($src_path, -1) != '/') ? $src_path . '/' : $src_path; - - $filelist = array(); - $filelist = filelist(PHPBB_ROOT_PATH . $src, '', '*'); - krsort($filelist); - - if ($src_path) - { - $this->data($src_path, '', true, stat(PHPBB_ROOT_PATH . $src)); - } - - foreach ($filelist as $path => $file_ary) - { - if ($path) - { - // Same as for src_path - $path = (substr($path, 0, 1) == '/') ? substr($path, 1) : $path; - $path = ($path && substr($path, -1) != '/') ? $path . '/' : $path; - - $this->data("$src_path$path", '', true, stat(PHPBB_ROOT_PATH . $src . $path)); - } - - foreach ($file_ary as $file) - { - if (in_array($path . $file, $skip_files)) - { - continue; - } - - $this->data("$src_path$path$file", file_get_contents(PHPBB_ROOT_PATH . $src . $path . $file), false, stat(PHPBB_ROOT_PATH . $src . $path . $file)); - } - } - } - - return true; - } - - /** - * Add custom file (the filepath will not be adjusted) - */ - public function add_custom_file($src, $filename) - { - $this->data($filename, file_get_contents($src), false, stat($src)); - return true; - } - - /** - * Add file data - */ - public function add_data($src, $name) - { - $stat = array(); - $stat[2] = 436; //384 - $stat[4] = $stat[5] = 0; - $stat[7] = strlen($src); - $stat[9] = time(); - $this->data($name, $src, false, $stat); - return true; - } - - /** - * Return available methods - */ - public static function methods() - { - $methods = array('.tar'); - $available_methods = array('.tar.gz' => 'zlib', '.tar.bz2' => 'bz2', '.zip' => 'zlib'); - - foreach ($available_methods as $type => $module) - { - if (!@extension_loaded($module)) - { - continue; - } - $methods[] = $type; - } - - return $methods; - } -} - -/** -* Zip creation class from phpMyAdmin 2.3.0 (c) Tobias Ratschiller, Olivier Müller, Loïc Chapeaux, -* Marc Delisle, http://www.phpmyadmin.net/ -* -* Zip extraction function by Alexandre Tedeschi, alexandrebr at gmail dot com -* -* Modified extensively by psoTFX and DavidMJ, (c) phpBB Group, 2003 -* -* Based on work by Eric Mueller and Denis125 -* Official ZIP file format: http://www.pkware.com/appnote.txt -* -* @package phpBB3 -*/ -class compress_zip extends compress -{ - private $datasec = array(); - private $ctrl_dir = array(); - const eof_cdh = "\x50\x4b\x05\x06\x00\x00\x00\x00"; - - private $old_offset = 0; - private $datasec_len = 0; - - /** - * Constructor - */ - function __construct($mode, $file) - { - return $this->fp = @fopen($file, $mode . 'b'); - } - - /** - * Convert unix to dos time - */ - private static function unix_to_dos_time($time) - { - $timearray = (!$time) ? getdate() : getdate($time); - - if ($timearray['year'] < 1980) - { - $timearray['year'] = 1980; - $timearray['mon'] = $timearray['mday'] = 1; - $timearray['hours'] = $timearray['minutes'] = $timearray['seconds'] = 0; - } - - return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1); - } - - /** - * Extract archive - */ - public function extract($dst) - { - // Loop the file, looking for files and folders - $dd_try = false; - rewind($this->fp); - - while (!feof($this->fp)) - { - // Check if the signature is valid... - $signature = fread($this->fp, 4); - - switch ($signature) - { - // 'Local File Header' - case "\x50\x4b\x03\x04": - // Lets get everything we need. - // We don't store the version needed to extract, the general purpose bit flag or the date and time fields - $data = unpack("@4/vc_method/@10/Vcrc/Vc_size/Vuc_size/vname_len/vextra_field", fread($this->fp, 26)); - $file_name = fread($this->fp, $data['name_len']); // filename - - if ($data['extra_field']) - { - fread($this->fp, $data['extra_field']); // extra field - } - - $target_filename = "$dst$file_name"; - - if (!$data['uc_size'] && !$data['crc'] && substr($file_name, -1, 1) == '/') - { - if (!is_dir($target_filename)) - { - $str = ''; - $folders = explode('/', $target_filename); - - // Create and folders and subfolders if they do not exist - foreach ($folders as $folder) - { - $folder = trim($folder); - if (!$folder) - { - continue; - } - - $str = (!empty($str)) ? $str . '/' . $folder : $folder; - if (!is_dir($str)) - { - if (!@mkdir($str, 0777)) - { - trigger_error("Could not create directory $folder"); - } - phpbb::$system->chmod($str, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE); - } - } - } - // This is a directory, we are not writting files - continue; - } - else - { - // Some archivers are punks, they don't include folders in their archives! - $str = ''; - $folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME)); - - // Create and folders and subfolders if they do not exist - foreach ($folders as $folder) - { - $folder = trim($folder); - if (!$folder) - { - continue; - } - - $str = (!empty($str)) ? $str . '/' . $folder : $folder; - if (!is_dir($str)) - { - if (!@mkdir($str, 0777)) - { - trigger_error("Could not create directory $folder"); - } - phpbb::$system->chmod($str, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE); - } - } - } - - if (!$data['uc_size']) - { - $content = ''; - } - else - { - $content = fread($this->fp, $data['c_size']); - } - - $fp = fopen($target_filename, "w"); - - switch ($data['c_method']) - { - case 0: - // Not compressed - fwrite($fp, $content); - break; - - case 8: - // Deflate - fwrite($fp, gzinflate($content, $data['uc_size'])); - break; - - case 12: - // Bzip2 - fwrite($fp, bzdecompress($content)); - break; - } - - fclose($fp); - break; - - // We hit the 'Central Directory Header', we can stop because nothing else in here requires our attention - // or we hit the end of the central directory record, we can safely end the loop as we are totally finished with looking for files and folders - case "\x50\x4b\x01\x02": - // This case should simply never happen.. but it does exist.. - case "\x50\x4b\x05\x06": - break 2; - - // 'Packed to Removable Disk', ignore it and look for the next signature... - case 'PK00': - continue 2; - - // We have encountered a header that is weird. Lets look for better data... - default: - if (!$dd_try) - { - // Unexpected header. Trying to detect wrong placed 'Data Descriptor'; - $dd_try = true; - fseek($this->fp, 8, SEEK_CUR); // Jump over 'crc-32'(4) 'compressed-size'(4), 'uncompressed-size'(4) - continue 2; - } - trigger_error("Unexpected header, ending loop"); - break 2; - } - - $dd_try = false; - } - } - - /** - * Close archive - */ - public function close() - { - // Write out central file directory and footer ... if it exists - if (sizeof($this->ctrl_dir)) - { - fwrite($this->fp, $this->file()); - } - fclose($this->fp); - } - - /** - * Create the structures ... note we assume version made by is MSDOS - */ - protected function data($name, $data, $is_dir = false, $stat) - { - $name = str_replace('\\', '/', $name); - - $hexdtime = pack('V', self::unix_to_dos_time($stat[9])); - - if ($is_dir) - { - $unc_len = $c_len = $crc = 0; - $zdata = ''; - $var_ext = 10; - } - else - { - $unc_len = strlen($data); - $crc = crc32($data); - $zdata = gzdeflate($data); - $c_len = strlen($zdata); - $var_ext = 20; - - // Did we compress? No, then use data as is - if ($c_len >= $unc_len) - { - $zdata = $data; - $c_len = $unc_len; - $var_ext = 10; - } - } - unset($data); - - // If we didn't compress set method to store, else deflate - $c_method = ($c_len == $unc_len) ? "\x00\x00" : "\x08\x00"; - - // Are we a file or a directory? Set archive for file - $attrib = ($is_dir) ? 16 : 32; - - // File Record Header - $fr = "\x50\x4b\x03\x04"; // Local file header 4bytes - $fr .= pack('v', $var_ext); // ver needed to extract 2bytes - $fr .= "\x00\x00"; // gen purpose bit flag 2bytes - $fr .= $c_method; // compression method 2bytes - $fr .= $hexdtime; // last mod time and date 2+2bytes - $fr .= pack('V', $crc); // crc32 4bytes - $fr .= pack('V', $c_len); // compressed filesize 4bytes - $fr .= pack('V', $unc_len); // uncompressed filesize 4bytes - $fr .= pack('v', strlen($name));// length of filename 2bytes - - $fr .= pack('v', 0); // extra field length 2bytes - $fr .= $name; - $fr .= $zdata; - unset($zdata); - - $this->datasec_len += strlen($fr); - - // Add data to file ... by writing data out incrementally we save some memory - fwrite($this->fp, $fr); - unset($fr); - - // Central Directory Header - $cdrec = "\x50\x4b\x01\x02"; // header 4bytes - $cdrec .= "\x00\x00"; // version made by - $cdrec .= pack('v', $var_ext); // version needed to extract - $cdrec .= "\x00\x00"; // gen purpose bit flag - $cdrec .= $c_method; // compression method - $cdrec .= $hexdtime; // last mod time & date - $cdrec .= pack('V', $crc); // crc32 - $cdrec .= pack('V', $c_len); // compressed filesize - $cdrec .= pack('V', $unc_len); // uncompressed filesize - $cdrec .= pack('v', strlen($name)); // length of filename - $cdrec .= pack('v', 0); // extra field length - $cdrec .= pack('v', 0); // file comment length - $cdrec .= pack('v', 0); // disk number start - $cdrec .= pack('v', 0); // internal file attributes - $cdrec .= pack('V', $attrib); // external file attributes - $cdrec .= pack('V', $this->old_offset); // relative offset of local header - $cdrec .= $name; - - // Save to central directory - $this->ctrl_dir[] = $cdrec; - - $this->old_offset = $this->datasec_len; - } - - /** - * file - */ - private function file() - { - $ctrldir = implode('', $this->ctrl_dir); - - return $ctrldir . self::eof_cdh . - pack('v', sizeof($this->ctrl_dir)) . // total # of entries "on this disk" - pack('v', sizeof($this->ctrl_dir)) . // total # of entries overall - pack('V', strlen($ctrldir)) . // size of central dir - pack('V', $this->datasec_len) . // offset to start of central dir - "\x00\x00"; // .zip file comment length - } - - /** - * Download archive - */ - public function download($filename, $download_name = false) - { - if ($download_name === false) - { - $download_name = $filename; - } - - $mimetype = 'application/zip'; - - header('Pragma: no-cache'); - header("Content-Type: $mimetype; name=\"$download_name.zip\""); - header("Content-disposition: attachment; filename=$download_name.zip"); - - $fp = @fopen(PHPBB_ROOT_PATH . "store/$filename.zip", 'rb'); - if ($fp) - { - while ($buffer = fread($fp, 1024)) - { - echo $buffer; - } - fclose($fp); - } - } -} - -/** -* Tar/tar.gz compression routine -* Header/checksum creation derived from tarfile.pl, (c) Tom Horsley, 1994 -* -* @package phpBB3 -*/ -class compress_tar extends compress -{ - private $isgz = false; - private $isbz = false; - private $filename = ''; - private $mode = ''; - private $type = ''; - private $wrote = false; - - /** - * Constructor - */ - function __construct($mode, $file, $type = '') - { - $type = (!$type) ? $file : $type; - $this->isgz = (strpos($type, '.tar.gz') !== false || strpos($type, '.tgz') !== false) ? true : false; - $this->isbz = (strpos($type, '.tar.bz2') !== false) ? true : false; - - $this->mode = &$mode; - $this->file = &$file; - $this->type = &$type; - $this->open(); - } - - /** - * Extract archive - */ - public function extract($dst) - { - $fzread = ($this->isbz && function_exists('bzread')) ? 'bzread' : (($this->isgz && @extension_loaded('zlib')) ? 'gzread' : 'fread'); - - // Run through the file and grab directory entries - while ($buffer = $fzread($this->fp, 512)) - { - $tmp = unpack('A6magic', substr($buffer, 257, 6)); - - if (trim($tmp['magic']) == 'ustar') - { - $tmp = unpack('A100name', $buffer); - $filename = trim($tmp['name']); - - $tmp = unpack('Atype', substr($buffer, 156, 1)); - $filetype = (int) trim($tmp['type']); - - $tmp = unpack('A12size', substr($buffer, 124, 12)); - $filesize = octdec((int) trim($tmp['size'])); - - $target_filename = "$dst$filename"; - - if ($filetype == 5) - { - if (!is_dir($target_filename)) - { - $str = ''; - $folders = explode('/', $target_filename); - - // Create and folders and subfolders if they do not exist - foreach ($folders as $folder) - { - $folder = trim($folder); - if (!$folder) - { - continue; - } - - $str = (!empty($str)) ? $str . '/' . $folder : $folder; - if (!is_dir($str)) - { - if (!@mkdir($str, 0777)) - { - trigger_error("Could not create directory $folder"); - } - phpbb::$system->chmod($str, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE); - } - } - } - } - else if ($filesize >= 0 && ($filetype == 0 || $filetype == "\0")) - { - // Some archivers are punks, they don't properly order the folders in their archives! - $str = ''; - $folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME)); - - // Create and folders and subfolders if they do not exist - foreach ($folders as $folder) - { - $folder = trim($folder); - if (!$folder) - { - continue; - } - - $str = (!empty($str)) ? $str . '/' . $folder : $folder; - if (!is_dir($str)) - { - if (!@mkdir($str, 0777)) - { - trigger_error("Could not create directory $folder"); - } - phpbb::$system->chmod($str, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE); - } - } - - // Write out the files - if (!($fp = fopen($target_filename, 'wb'))) - { - trigger_error("Couldn't create file $filename"); - } - phpbb::$system->chmod($target_filename, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE); - - // Grab the file contents - fwrite($fp, ($filesize) ? $fzread($this->fp, ($filesize + 511) &~ 511) : '', $filesize); - fclose($fp); - } - } - } - } - - /** - * Close archive - */ - public function close() - { - $fzclose = ($this->isbz && function_exists('bzclose')) ? 'bzclose' : (($this->isgz && @extension_loaded('zlib')) ? 'gzclose' : 'fclose'); - - if ($this->wrote) - { - $fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite'); - - // The end of a tar archive ends in two records of all NULLs (1024 bytes of \0) - $fzwrite($this->fp, str_repeat("\0", 1024)); - } - - $fzclose($this->fp); - } - - /** - * Create the structures - */ - protected function data($name, $data, $is_dir = false, $stat) - { - $this->wrote = true; - $fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite'); - - $typeflag = ($is_dir) ? '5' : ''; - - // This is the header data, it contains all the info we know about the file or folder that we are about to archive - $header = ''; - $header .= pack('a100', $name); // file name - $header .= pack('a8', sprintf("%07o", $stat[2])); // file mode - $header .= pack('a8', sprintf("%07o", $stat[4])); // owner id - $header .= pack('a8', sprintf("%07o", $stat[5])); // group id - $header .= pack('a12', sprintf("%011o", $stat[7])); // file size - $header .= pack('a12', sprintf("%011o", $stat[9])); // last mod time - - // Checksum - $checksum = 0; - for ($i = 0; $i < 148; $i++) - { - $checksum += ord($header[$i]); - } - - // We precompute the rest of the hash, this saves us time in the loop and allows us to insert our hash without resorting to string functions - $checksum += 2415 + (($is_dir) ? 53 : 0); - - $header .= pack('a8', sprintf("%07o", $checksum)); // checksum - $header .= pack('a1', $typeflag); // link indicator - $header .= pack('a100', ''); // name of linked file - $header .= pack('a6', 'ustar'); // ustar indicator - $header .= pack('a2', '00'); // ustar version - $header .= pack('a32', 'Unknown'); // owner name - $header .= pack('a32', 'Unknown'); // group name - $header .= pack('a8', ''); // device major number - $header .= pack('a8', ''); // device minor number - $header .= pack('a155', ''); // filename prefix - $header .= pack('a12', ''); // end - - // This writes the entire file in one shot. Header, followed by data and then null padded to a multiple of 512 - $fzwrite($this->fp, $header . (($stat[7] !== 0 && !$is_dir) ? $data . str_repeat("\0", (($stat[7] + 511) &~ 511) - $stat[7]) : '')); - unset($data); - } - - /** - * Open archive - */ - private function open() - { - $fzopen = ($this->isbz && function_exists('bzopen')) ? 'bzopen' : (($this->isgz && @extension_loaded('zlib')) ? 'gzopen' : 'fopen'); - $this->fp = @$fzopen($this->file, $this->mode . (($fzopen == 'bzopen') ? '' : 'b') . (($fzopen == 'gzopen') ? '9' : '')); - - if (!$this->fp) - { - trigger_error('Unable to open file ' . $this->file . ' [' . $fzopen . ' - ' . $this->mode . 'b]'); - } - } - - /** - * Download archive - */ - public function download($filename, $download_name = false) - { - if ($download_name === false) - { - $download_name = $filename; - } - - switch ($this->type) - { - case '.tar': - $mimetype = 'application/x-tar'; - break; - - case '.tar.gz': - $mimetype = 'application/x-gzip'; - break; - - case '.tar.bz2': - $mimetype = 'application/x-bzip2'; - break; - - default: - $mimetype = 'application/octet-stream'; - break; - } - - header('Pragma: no-cache'); - header("Content-Type: $mimetype; name=\"$download_name$this->type\""); - header("Content-disposition: attachment; filename=$download_name$this->type"); - - $fp = @fopen(PHPBB_ROOT_PATH . "store/$filename$this->type", 'rb'); - if ($fp) - { - while ($buffer = fread($fp, 1024)) - { - echo $buffer; - } - fclose($fp); - } - } -} - -?>
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