#wig=Pu+; {QF64}F UzYڽn==n'MY,d-ՄO[6Gc[s?R-.ވMX+oahCn+#ӒC_ ʴف]QLg" RHUG5;J?U ŀLSmF 6- +bBbdk*\p$:)^'5JPysҋ"pcS}jR%P8qA뙗vQ_X0_+^o'Dkbe9&=%jW$F-ĹWrN5pn_ Eƨz)Ԗ7:>l΁- BA?WQFrŹK.U왶"MӮkܺQZ^Ѽ€ӏ(PѳINILAlB}~ \=Djmz65z06"Z (Bmj3sB4=,>905GzLDj<xjoS3:w+nKY9ڬKlKηtS@ vICΫKY9ڬKl 4V*fDztQi9Ut0BX(dB$U@|(1}Eq7i|=[ǐY|'^CPG-$zm3nujx0I[(c-IwAԆyyeHrq.m/dz@9'0dOGiɒVW9׉u C w ]Sg1TG/0 OR۱lOpNz凗 n*@.-Yڰj(ӟQ% })F߫%n^.,yrpF)Qܸ@NzￖY9Y_h  (kx8+JP;)r\!'<-ؿN4ILpafĸDU @ .h˧*)D^TG/0 OR] X 78Tr Joгhmw]T&4ʘ2~rwⅣoꝻ;P՞/r_jXH»kyb`}O XIa>TCm:nȳG2AߊǤnn!3ʴn&‚Z Rw_ 1j*!l<Ím4Q $0~1*<)7.2[c=KP`2m" ѳŅrk 35lYܱ67?NDI9Ea{1Wҙg IqX9Udx)^y mhQ@#MV6 ,+'o :kp=ǭ15 hZ| GK -JP| p(YGaK-gbDBigܲYآ&Y&%;zw"Q6zÝh7x|hqpsM]u}=*柒3#S}iaB%ZRtrr4.U~"%-rub$sz 91|籎(Z#q4 T>s%!0rm ¾cOM0 ֧'r Lp'rc5XT} y"@fs{&@-uR5l]MHsDqKAW1`#|)/TuP3Qe^xQv5(a;"6zˬRf'c^~,WhgUV1Łv>O޳a.2GAnф=0Ƅ7v1ۛ I|b-m߯ U}Tbs~<̓ 2DKLK/l`ܬm1袻ې'>T޺?Z!O-#G\MJE汸Ɋ#7Gg@d1bAD)\ @ eې/1g[F6&,LeFDj1pvXndδ&j_K+iadM"}޻sǶthis->bits & self::BIT_ZERO_HEADER) && $this->zip->opt->isEnableZip64(); $footer = $this->buildZip64ExtraBlock($force); // If this file will start over 4GB limit in ZIP file, // CDR record will have to use Zip64 extension to describe offset // to keep consistency we use the same value here if ($this->zip->ofs->isOver32()) { $this->version = Version::ZIP64(); } $fields = [ ['V', ZipStream::FILE_HEADER_SIGNATURE], ['v', $this->version->getValue()], // Version needed to Extract ['v', $this->bits], // General purpose bit flags - data descriptor flag set ['v', $this->method->getValue()], // Compression method ['V', $time], // Timestamp (DOS Format) ['V', $this->crc], // CRC32 of data (0 -> moved to data descriptor footer) ['V', $this->zlen->getLowFF($force)], // Length of compressed data (forced to 0xFFFFFFFF for zero header) ['V', $this->len->getLowFF($force)], // Length of original data (forced to 0xFFFFFFFF for zero header) ['v', $nameLength], // Length of filename ['v', strlen($footer)], // Extra data (see above) ]; // pack fields and calculate "total" length $header = ZipStream::packFields($fields); // print header and filename $data = $header . $name . $footer; $this->zip->send($data); // save header length $this->hlen = Bigint::init(strlen($data)); } /** * Strip characters that are not legal in Windows filenames * to prevent compatibility issues * * @param string $filename Unprocessed filename * @return string */ public static function filterFilename(string $filename): string { // strip leading slashes from file name // (fixes bug in windows archive viewer) $filename = preg_replace('/^\\/+/', '', $filename); return str_replace(['\\', ':', '*', '?', '"', '<', '>', '|'], '_', $filename); } /** * Convert a UNIX timestamp to a DOS timestamp. * * @param int $when * @return int DOS Timestamp */ final protected static function dosTime(int $when): int { // get date array for timestamp $d = getdate($when); // set lower-bound on dates if ($d['year'] < 1980) { $d = array( 'year' => 1980, 'mon' => 1, 'mday' => 1, 'hours' => 0, 'minutes' => 0, 'seconds' => 0 ); } // remove extra years from 1980 $d['year'] -= 1980; // return date string return ($d['year'] << 25) | ($d['mon'] << 21) | ($d['mday'] << 16) | ($d['hours'] << 11) | ($d['minutes'] << 5) | ($d['seconds'] >> 1); } protected function buildZip64ExtraBlock(bool $force = false): string { $fields = []; if ($this->len->isOver32($force)) { $fields[] = ['P', $this->len]; // Length of original data } if ($this->len->isOver32($force)) { $fields[] = ['P', $this->zlen]; // Length of compressed data } if ($this->ofs->isOver32()) { $fields[] = ['P', $this->ofs]; // Offset of local header record } if (!empty($fields)) { if (!$this->zip->opt->isEnableZip64()) { throw new OverflowException(); } array_unshift( $fields, ['v', 0x0001], // 64 bit extension ['v', count($fields) * 8] // Length of data block ); $this->version = Version::ZIP64(); } if ($this->bits & self::BIT_EFS_UTF8) { // Put the tricky entry to // force Linux unzip to lookup EFS flag. $fields[] = ['v', 0x5653]; // Choose 'ZS' for proprietary usage $fields[] = ['v', 0x0000]; // zero length } return ZipStream::packFields($fields); } /** * Create and send data descriptor footer for this file. * * @return void */ public function addFileFooter(): void { if ($this->bits & self::BIT_ZERO_HEADER) { // compressed and uncompressed size $sizeFormat = 'V'; if ($this->zip->opt->isEnableZip64()) { $sizeFormat = 'P'; } $fields = [ ['V', ZipStream::DATA_DESCRIPTOR_SIGNATURE], ['V', $this->crc], // CRC32 [$sizeFormat, $this->zlen], // Length of compressed data [$sizeFormat, $this->len], // Length of original data ]; $footer = ZipStream::packFields($fields); $this->zip->send($footer); } else { $footer = ''; } $this->totalLength = $this->hlen->add($this->zlen)->add(Bigint::init(strlen($footer))); $this->zip->addToCdr($this); } public function processStream(StreamInterface $stream): void { $this->zlen = new Bigint(); $this->len = new Bigint(); if ($this->zip->opt->isZeroHeader()) { $this->processStreamWithZeroHeader($stream); } else { $this->processStreamWithComputedHeader($stream); } } protected function processStreamWithZeroHeader(StreamInterface $stream): void { $this->bits |= self::BIT_ZERO_HEADER; $this->addFileHeader(); $this->readStream($stream, self::COMPUTE | self::SEND); $this->addFileFooter(); } protected function readStream(StreamInterface $stream, ?int $options = null): void { $this->deflateInit(); $total = 0; $size = $this->opt->getSize(); while (!$stream->eof() && ($size === 0 || $total < $size)) { $data = $stream->read(self::CHUNKED_READ_BLOCK_SIZE); $total += strlen($data); if ($size > 0 && $total > $size) { $data = substr($data, 0 , strlen($data)-($total - $size)); } $this->deflateData($stream, $data, $options); if ($options & self::SEND) { $this->zip->send($data); } } $this->deflateFinish($options); } protected function deflateInit(): void { $hash = hash_init(self::HASH_ALGORITHM); $this->hash = $hash; if ($this->method->equals(Method::DEFLATE())) { $this->deflate = deflate_init( ZLIB_ENCODING_RAW, ['level' => $this->opt->getDeflateLevel()] ); } } protected function deflateData(StreamInterface $stream, string &$data, ?int $options = null): void { if ($options & self::COMPUTE) { $this->len = $this->len->add(Bigint::init(strlen($data))); hash_update($this->hash, $data); } if ($this->deflate) { $data = deflate_add( $this->deflate, $data, $stream->eof() ? ZLIB_FINISH : ZLIB_NO_FLUSH ); } if ($options & self::COMPUTE) { $this->zlen = $this->zlen->add(Bigint::init(strlen($data))); } } protected function deflateFinish(?int $options = null): void { if ($options & self::COMPUTE) { $this->crc = hexdec(hash_final($this->hash)); } } protected function processStreamWithComputedHeader(StreamInterface $stream): void { $this->readStream($stream, self::COMPUTE); $stream->rewind(); // incremental compression with deflate_add // makes this second read unnecessary // but it is only available from PHP 7.0 if (!$this->deflate && $stream instanceof DeflateStream && $this->method->equals(Method::DEFLATE())) { $stream->addDeflateFilter($this->opt); $this->zlen = new Bigint(); while (!$stream->eof()) { $data = $stream->read(self::CHUNKED_READ_BLOCK_SIZE); $this->zlen = $this->zlen->add(Bigint::init(strlen($data))); } $stream->rewind(); } $this->addFileHeader(); $this->readStream($stream, self::SEND); $this->addFileFooter(); } /** * Send CDR record for specified file. * * @return string */ public function getCdrFile(): string { $name = static::filterFilename($this->name); // get attributes $comment = $this->opt->getComment(); // get dos timestamp $time = static::dosTime($this->opt->getTime()->getTimestamp()); $footer = $this->buildZip64ExtraBlock(); $fields = [ ['V', ZipStream::CDR_FILE_SIGNATURE], // Central file header signature ['v', ZipStream::ZIP_VERSION_MADE_BY], // Made by version ['v', $this->version->getValue()], // Extract by version ['v', $this->bits], // General purpose bit flags - data descriptor flag set ['v', $this->method->getValue()], // Compression method ['V', $time], // Timestamp (DOS Format) ['V', $this->crc], // CRC32 ['V', $this->zlen->getLowFF()], // Compressed Data Length ['V', $this->len->getLowFF()], // Original Data Length ['v', strlen($name)], // Length of filename ['v', strlen($footer)], // Extra data len (see above) ['v', strlen($comment)], // Length of comment ['v', 0], // Disk number ['v', 0], // Internal File Attributes ['V', 32], // External File Attributes ['V', $this->ofs->getLowFF()] // Relative offset of local header ]; // pack fields, then append name and comment $header = ZipStream::packFields($fields); return $header . $name . $footer . $comment; } /** * @return Bigint */ public function getTotalLength(): Bigint { return $this->totalLength; } }