public override PhpStream Open(ref string path, string mode, StreamOpenOptions options, StreamContext context)
{
int level = -1;
DeflateFilterMode deflateMode = DeflateFilterMode.Normal;
#region Parse mode options
// PHP just looks whether there are mode flags in the mode string (skip the first character)
// last flag is the valid one
for (int i = 1; i < mode.Length; i++)
{
if (Char.IsDigit(mode[i]))
{
level = mode[i] - '0';
}
else if (mode[i] == 'f')
{
deflateMode = DeflateFilterMode.Filter;
}
else if (mode[i] == 'h')
{
deflateMode = DeflateFilterMode.Huffman;
}
}
#endregion
#region Path correction
if (path.StartsWith("compress.zlib://"))
{
path = path.Substring(16);
}
else if (path.StartsWith("zlib:"))
{
path = path.Substring(5);
}
#endregion
PhpStream stream = PhpStream.Open(path, mode, options);
if (stream != null && stream.CanRead)
{
stream.AddFilter(new GzipUncompressionFilter(), FilterChainOptions.Read);
}
if (stream != null && stream.CanWrite)
{
stream.AddFilter(new GzipCompresionFilter(level, deflateMode), FilterChainOptions.Write);
}
return(stream);
}
public GzipCompresionFilter(int level, DeflateFilterMode mode)
: base(level, mode)
{
_crc = new PhpHash.HashPhpResource.CRC32B();
_state = CompressionState.Header;
}
public DeflateFilter(int level, DeflateFilterMode mode)
: base()
{
_level = level;
_mode = mode;
}
public GzipCompresionFilter(int level, DeflateFilterMode mode)
: base(level, mode)
{
_crc = new PhpHash.HashPhpResource.CRC32B();
_state = CompressionState.Header;
}
public DeflateFilter(int level, DeflateFilterMode mode)
: base()
{
_level = level;
_mode = mode;
}
