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| author | Paul S. Owen <psotfx@users.sourceforge.net> | 2003-07-21 22:54:46 +0000 |
|---|---|---|
| committer | Paul S. Owen <psotfx@users.sourceforge.net> | 2003-07-21 22:54:46 +0000 |
| commit | 971968b08cd08169df19cf8a26aa13c59bf6f25a (patch) | |
| tree | 34d47f498d9056a58debeb4ffd368e6a7b4fb477 /phpBB/includes/functions_compress.php | |
| parent | 71cc8e79b3cecab6ea401d59e29f0ba933b18bdb (diff) | |
| download | forums-971968b08cd08169df19cf8a26aa13c59bf6f25a.tar forums-971968b08cd08169df19cf8a26aa13c59bf6f25a.tar.gz forums-971968b08cd08169df19cf8a26aa13c59bf6f25a.tar.bz2 forums-971968b08cd08169df19cf8a26aa13c59bf6f25a.tar.xz forums-971968b08cd08169df19cf8a26aa13c59bf6f25a.zip | |
Extract .zip ... damn gzuncompress
git-svn-id: file:///svn/phpbb/trunk@4309 89ea8834-ac86-4346-8a33-228a782c2dd0
Diffstat (limited to 'phpBB/includes/functions_compress.php')
| -rw-r--r-- | phpBB/includes/functions_compress.php | 92 |
1 files changed, 81 insertions, 11 deletions
diff --git a/phpBB/includes/functions_compress.php b/phpBB/includes/functions_compress.php index ac0ba106bb..b705158d16 100644 --- a/phpBB/includes/functions_compress.php +++ b/phpBB/includes/functions_compress.php @@ -130,6 +130,76 @@ class compress_zip extends compress function extract($dst) { + $header = $data = ''; + + fseek($this->fp, -14, SEEK_END); + $tmp = unpack("ventries/vtotentries/Vctsize/Vctpos", fread($this->fp, 12)); + $entries = (int) trim($tmp['entries']); + $totentries = (int) trim($tmp['totentries']); + $ctsize = (int) trim($tmp['ctsize']); + $ctpos = (int) trim($tmp['ctpos']); + + for ($i = 0; $i < $entries; $i++) + { + fseek($this->fp, $ctpos); + + $buffer = fread($this->fp, 46); + + $tmp = unpack("Vcrc/Vc_size/Vuc_size/vstrlen", substr($buffer, 16, 14)); + $crc = (int) trim($tmp['crc']); + $c_size = (int) trim($tmp['c_size']); + $uc_size = (int) trim($tmp['uc_size']); + $strlen = (int) trim($tmp['strlen']); + + $tmp = unpack("Vattrib/Voffset", substr($buffer, 38, 8)); + $attrib = (int) trim($tmp['attrib']); + $offset = (int) trim($tmp['offset']); + + $filename = fread($this->fp, $strlen); + + $ctpos = ftell($this->fp); + + if ($attrib == 0x41FF0010) + { + mkdir($dst . $filename); + } + else + { + fseek($this->fp, $offset + 30 + $strlen); + + // We have to fudge here for time being + + // Read buffer, prepend and append gz file header/footer + $buffer = pack('va1a1Va1a1', 0x8b1f, chr(0x08), chr(0x00), time(), chr(0x00), chr(3)) . fread($this->fp, $c_size) . pack("VV", $crc, $uc_size); + + if (!($fp = fopen($dst . $filename . '.gz', 'wb'))) + { + die("Could not open temporary $filename.gz"); + } + fwrite($fp, $buffer); + fclose($fp); + unset($buffer); + unset($fp); + + if (!($fp = fopen($dst . $filename, 'wb'))) + { + die("Could not open $filename"); + } + + if (!($gzfp = gzopen($dst . $filename . '.gz', 'rb'))) + { + die("Could not open temporary $filename.gz"); + } + + while ($buffer = gzread($gzfp, 1024)) + { + fwrite($fp, $buffer); + } + gzclose($gzfp); + fclose($fp); + unlink($dst . $filename . '.gz'); + } + } } function close() @@ -154,17 +224,17 @@ class compress_zip extends compress $c_len = strlen($zdata); unset($data); - $fr = "\x50\x4b\x03\x04"; - $fr .= "\x14\x00"; // ver needed to extract - $fr .= "\x00\x00"; // gen purpose bit flag - $fr .= "\x08\x00"; // compression method - $fr .= $hexdtime; // last mod time and date - $fr .= pack('V', $crc); // crc32 - $fr .= pack('V', $c_len); // compressed filesize - $fr .= pack('V', $unc_len); // uncompressed filesize - $fr .= pack('v', strlen($name));// length of filename - $fr .= pack('v', 0); // extra field length - $fr .= $name; + $fr = "\x50\x4b\x03\x04"; // + $fr .= "\x14\x00"; // ver needed to extract 4 + $fr .= "\x00\x00"; // gen purpose bit flag 6 + $fr .= "\x08\x00"; // compression method 8 + $fr .= $hexdtime; // last mod time and date 10 + $fr .= pack('V', $crc); // crc32 14 + $fr .= pack('V', $c_len); // compressed filesize 18 + $fr .= pack('V', $unc_len); // uncompressed filesize 22 + $fr .= pack('v', strlen($name));// length of filename 26 + $fr .= pack('v', 0); // extra field length 28 + $fr .= $name; // 30 $fr .= $zdata; unset($zdata); $fr .= pack('V', $crc); |