{

var $fp = 0;

/**

protected $filelist = array();

/**

function add_file($src, $src_rm_prefix = '', $src_add_prefix = '', $skip_files = '')

{

global $phpbb_root_path;

$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"), stat("$phpbb_root_path$src"), false);

}

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);

/**

foreach ($filelist as $path => $file_ary)

{

/**

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"), stat("$phpbb_root_path$src$path$file"), false);

}

}

}

else

{

// $src does not exist

return false;

}

return true;

}

/**

function add_custom_file($src, $filename)

{

if (!file_exists($src))

{

return false;

}

$this->data($filename, file_get_contents($src), stat($src), false);

return true;

}

/**

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, $stat, false);

return true;

}

/**

protected function unique_filename($name)

{

if (isset($this->filelist[$name]))

{

$start = $name;

$ext = '';

$this->filelist[$name]++;

// Separate the extension off the end of the filename to preserve it

$pos = strrpos($name, '.');

if ($pos !== false)

{

$start = substr($name, 0, $pos);

$ext = substr($name, $pos);

}

return $start . '_' . $this->filelist[$name] . $ext;

}

$this->filelist[$name] = 0;

return $name;

}

/**

static public 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;

}

{

var $datasec = array();

var $ctrl_dir = array();

var $eof_cdh = "\x50\x4b\x05\x06\x00\x00\x00\x00";

var $old_offset = 0;

var $datasec_len = 0;

/**

function compress_zip($mode, $file)

{

$this->fp = @fopen($file, $mode . 'b');

if (!$this->fp)

{

trigger_error('Unable to open file ' . $file . ' [' . $mode . 'b]');

}

}

/**

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);

}

/**

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_chmod($str, CHMOD_READ | 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_chmod($str, CHMOD_READ | 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;

}

}

/**

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);

}

/**

function data($name, $data, $stat, $is_dir = false)

{

$name = str_replace('\\', '/', $name);

$name = $this->unique_filename($name);

$hexdtime = pack('V', $this->unix_to_dos_time($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;

}

/**

function file()

{

$ctrldir = implode('', $this->ctrl_dir);

return $ctrldir . $this->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

}

/**

function download($filename, $download_name = false)

{

global $phpbb_root_path;

if ($download_name === false)

{

$download_name = $filename;

}

$mimetype = 'application/zip';

header('Cache-Control: private, 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);

}

}

{

var $isgz = false;

var $isbz = false;

var $filename = '';

var $mode = '';

var $type = '';

var $wrote = false;

/**

function compress_tar($mode, $file, $type = '')

{

$type = (!$type) ? $file : $type;

$this->isgz = preg_match('#(\.tar\.gz|\.tgz)$#', $type);

$this->isbz = preg_match('#\.tar\.bz2$#', $type);

$this->mode = &$mode;

$this->file = &$file;

$this->type = &$type;

$this->open();

}

/**

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_chmod($str, CHMOD_READ | 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_chmod($str, CHMOD_READ | CHMOD_WRITE);

}

}

// Write out the files

if (!($fp = fopen($target_filename, 'wb')))

{

trigger_error("Couldn't create file $filename");

}

phpbb_chmod($target_filename, CHMOD_READ);

// Grab the file contents

fwrite($fp, ($filesize) ? $fzread($this->fp, ($filesize + 511) &~ 511) : '', $filesize);

fclose($fp);

}

}

}

}

/**

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);

}

/**

function data($name, $data, $stat, $is_dir = false)

{

$name = $this->unique_filename($name);

$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);

}

/**

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]');

}

}

/**

function download($filename, $download_name = false)

{

global $phpbb_root_path;

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('Cache-Control: private, 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);

}

}