/**
* Serializes this header and appends it to the given ezcArchiveCharacterFile $archiveFile.
*
* @param ezcArchiveCharacterFile $archiveFile
* @return void
*/
public function writeEncodedHeader($archiveFile)
{
$this->properties["extraFieldLength"] = 13;
// 9 + 4.
$enc = pack("VvvvvvvVVVvvvvvVV", self::magic, $this->versionMadeBy, $this->versionNeededToExtract, $this->bitFlag, $this->compressionMethod, $this->lastModFileTime, $this->lastModFileDate, $this->crc, $this->compressedSize, $this->uncompressedSize, $this->fileNameLength, $this->extraFieldLength, $this->fileCommentLength, $this->diskNumberStart, $this->internalFileAttributes, $this->externalFileAttributes, $this->relativeHeaderOffset);
$time = pack("vvcV", self::EF_TIME, 5, 1, $this->mtime);
// fixme atime?
$unix2 = pack("vv", self::EF_IZUNIX2, 0);
// Add empty unix2 stamp.
$archiveFile->write($enc . $this->fileName . $time . $unix2 . $this->comment);
}
/**
* Serializes this header and appends it to the given ezcArchiveCharacterFile $archiveFile.
*
* @param ezcArchiveCharacterFile $archiveFile
* @return void
*/
public function writeEncodedHeader($archiveFile)
{
$this->properties["extraFieldLength"] = 21;
// FIXME.
$enc = pack("VvvvvvVVVvv", self::magic, $this->properties["version"], $this->properties["bitFlag"], $this->properties["compressionMethod"], $this->properties["lastModFileTime"], $this->properties["lastModFileDate"], $this->properties["crc"], $this->properties["compressedSize"], $this->properties["uncompressedSize"], $this->properties["fileNameLength"], $this->properties["extraFieldLength"]);
$time = pack("vvcVV", self::EF_TIME, 9, 3, $this->mtime, $this->atime);
// set accesss time to modification time.
$unix2 = pack("vvvv", self::EF_IZUNIX2, 4, $this->userId, $this->groupId);
$archiveFile->write($enc . $this->fileName . $time . $unix2);
}
/**
* Serializes this header and appends it to the given ezcArchiveCharacterFile $archiveFile.
*
* @param ezcArchiveCharacterFile $archiveFile
* @return void
*/
public function writeEncodedHeader($archiveFile)
{
$enc = pack("VvvvvVVv", self::magic, $this->properties["diskNumber"], $this->properties["centralDirectoryDisk"], $this->properties["totalCentralDirectoryEntriesOnDisk"], $this->properties["totalCentralDirectoryEntries"], $this->properties["centralDirectorySize"], $this->properties["centralDirectoryStart"], $this->properties["commentLength"]);
$archiveFile->write($enc . $this->properties["comment"]);
}
public function testWrite()
{
$dir = $this->createTempDir("ezcArchive_");
$file = $dir . "/myfile.txt";
$char = new ezcArchiveCharacterFile($file, true);
$char->write("ab");
$char->write("cd");
$this->assertEquals("abcd", file_get_contents($file));
$char->seek(2);
$this->assertEquals("c", $char->current());
$char->append("De");
$this->assertEquals("abcDe", file_get_contents($file));
$this->assertTrue($char->valid());
$this->assertEquals("c", $char->current());
$char->seek(3);
$this->assertEquals("D", $char->current());
$char->seek(2);
$this->assertEquals("c", $char->current());
$char->write("Cde");
$this->assertEquals("abCde", file_get_contents($file));
unset($char);
$this->removeTempDir();
}
/**
* Reads the file data from the archive and writes it the the $writeTo file.
*
* The data from the entry with $fileNumber is read from the archive.
* If the data is compressed or deflated it will be, respectively, decompressed or inflated.
*
* @throws ezcArchiveChecksumException if the checksum is invalid from the created file.
*
* @param int $fileNumber
* @param string $writeTo
* @return void
*/
public function writeFile($fileNumber, $writeTo)
{
$header = $this->getLocalHeader($fileNumber);
$pos = $this->localHeaderPositions[$fileNumber] + $header->getHeaderSize();
// FIXME.. don't write the entire stuff to memory.
$this->file->seek($pos);
/*
Part: 1
- Append the stream filter.
switch ( $header->compressionMethod )
{
case 8: $this->file->appendStreamFilter( "zlib.inflate" ); break;
case 12: $this->file->appendStreamFilter( "bzip2.decompress" ); break;
}
*/
$data = $this->file->read($header->compressedSize);
/*
Part: 2
- And remove the stream filter.
- Then we can write the file directly from the archive without copying it entirely to memory.
- Unfortunately, this method segfaults for me.
if ( $header->compressionMethod == 8 || $header->compressionMethod == 12 )
{
$this->file->removeStreamFilter();
}
*/
if ($data) {
switch ($header->compressionMethod) {
case 8:
$data = gzinflate($data);
break;
// Evil, memory consuming.
// Evil, memory consuming.
case 12:
$data = bzdecompress($data);
break;
}
}
if (strcmp(sprintf("%u", crc32($data)), sprintf("%u", $header->crc & 0xffffffff)) == 0) {
$newFile = new ezcArchiveCharacterFile($writeTo, true);
$newFile->write($data);
unset($newFile);
} else {
throw new ezcArchiveChecksumException($writeTo);
}
}
