public bool Authenticate(NameValueCollection requestHeaders, AddHeaderDelegate d, out HttpStatusCode statusCode)
{
if (requestHeaders["X-SecondLife-Shard"] != null)
{
statusCode = HttpStatusCode.Forbidden;
return false;
}
statusCode = HttpStatusCode.OK;
return true;
}
public bool Authenticate(NameValueCollection requestHeaders, AddHeaderDelegate d, out HttpStatusCode statusCode)
{
foreach (IServiceAuth auth in m_authentications)
{
if (!auth.Authenticate(requestHeaders, d, out statusCode))
return false;
}
statusCode = HttpStatusCode.OK;
return true;
}
public bool Authenticate(NameValueCollection requestHeaders, AddHeaderDelegate d, out HttpStatusCode statusCode)
{
// Console.WriteLine("DisallowLlHttpRequest");
if (requestHeaders["X-SecondLife-Shard"] != null)
{
statusCode = HttpStatusCode.Forbidden;
return false;
}
statusCode = HttpStatusCode.OK;
return true;
}
public static void ParseParameters (byte[] data, AddHeaderDelegate func, object userData)
{
int dataLength = data.Length;
int offset = 0;
int nlen, vlen;
string name, value;
//TODO: can encoding change?
Encoding enc = Encoding.Default;
while (offset < dataLength) {
nlen = data [offset++];
if (nlen >= 0x80) {
nlen = ((0x7F & nlen) * 0x1000000)
+ ((int)data [offset++]) * 0x10000
+ ((int)data [offset++]) * 0x100
+ ((int)data [offset++]);
}
vlen = data [offset++];
if (vlen >= 0x80) {
vlen = ((0x7F & vlen) * 0x1000000)
+ ((int)data [offset++]) * 0x10000
+ ((int)data [offset++]) * 0x100
+ ((int)data [offset++]);
}
// Do a sanity check on the size of the data.
if (offset + nlen + vlen > dataLength)
throw new ArgumentOutOfRangeException ("offset");
name = enc.GetString (data, offset, nlen);
offset += nlen;
value = enc.GetString (data, offset, vlen);
offset += vlen;
string header = ReformatHttpHeader (name);
bool isHeader = !String.IsNullOrEmpty (header);
//return value 'false' means stop further processing
if (!func (isHeader? header : name, value, isHeader, userData))
return;
}
}
public bool Authenticate(NameValueCollection requestHeaders, AddHeaderDelegate d)
{
//m_log.DebugFormat("[HTTP BASIC AUTH]: Authenticate in {0}", remove_me);
if (requestHeaders != null)
{
string value = requestHeaders.Get("Authorization");
if (value != null)
{
value = value.Trim();
if (value.StartsWith("Basic "))
{
value = value.Replace("Basic ", string.Empty);
if (Authenticate(value))
return true;
}
}
}
d("WWW-Authenticate", "Basic realm = \"Asset Server\"");
return false;
}
public bool Authenticate(NameValueCollection requestHeaders, AddHeaderDelegate d)
{
//m_log.DebugFormat("[HTTP BASIC AUTH]: Authenticate in {0}", remove_me);
if (requestHeaders != null)
{
string value = requestHeaders.Get("Authorization");
if (value != null)
{
value = value.Trim();
if (value.StartsWith("Basic "))
{
value = value.Replace("Basic ", string.Empty);
if (Authenticate(value))
{
return(true);
}
}
}
}
d("WWW-Authenticate", "Basic realm = \"Asset Server\"");
return(false);
}
public bool Authenticate(NameValueCollection requestHeaders, AddHeaderDelegate d, out HttpStatusCode statusCode)
{
// m_log.DebugFormat("[HTTP BASIC AUTH]: Authenticate in {0}", "BasicHttpAuthentication");
string value = requestHeaders.Get("Authorization");
if (value != null)
{
value = value.Trim();
if (value.StartsWith("Basic "))
{
value = value.Replace("Basic ", string.Empty);
if (Authenticate(value))
{
statusCode = HttpStatusCode.OK;
return true;
}
}
}
d("WWW-Authenticate", "Basic realm = \"OpenSim Server\"");
statusCode = HttpStatusCode.Unauthorized;
return false;
}
/// <summary>
/// Decode the header block into header fields.
/// </summary>
/// <param name="input">Input.</param>
/// <param name="headerListener">Header listener.</param>
public void Decode(BinaryReader input, AddHeaderDelegate addHeaderDelegate)
{
while(input.BaseStream.Length - input.BaseStream.Position > 0) {
switch(this.state) {
case State.READ_HEADER_REPRESENTATION:
sbyte b = input.ReadSByte();
if (maxDynamicTableSizeChangeRequired && (b & 0xE0) != 0x20) {
// Encoder MUST signal maximum dynamic table size change
throw new IOException("max dynamic table size change required");
}
if (b < 0) {
// Indexed Header Field
index = b & 0x7F;
if (index == 0) {
throw new IOException("illegal index value (" + index + ")");
} else if (index == 0x7F) {
state = State.READ_INDEXED_HEADER;
} else {
this.IndexHeader(index, addHeaderDelegate);
}
} else if ((b & 0x40) == 0x40) {
// Literal Header Field with Incremental Indexing
indexType = HPackUtil.IndexType.INCREMENTAL;
index = b & 0x3F;
if (index == 0) {
state = State.READ_LITERAL_HEADER_NAME_LENGTH_PREFIX;
} else if (index == 0x3F) {
state = State.READ_INDEXED_HEADER_NAME;
} else {
// Index was stored as the prefix
this.ReadName(index);
state = State.READ_LITERAL_HEADER_VALUE_LENGTH_PREFIX;
}
} else if ((b & 0x20) == 0x20) {
// Dynamic Table Size Update
index = b & 0x1F;
if (index == 0x1F) {
state = State.READ_MAX_DYNAMIC_TABLE_SIZE;
} else {
this.SetDynamicTableSize(index);
state = State.READ_HEADER_REPRESENTATION;
}
} else {
// Literal Header Field without Indexing / never Indexed
indexType = ((b & 0x10) == 0x10) ? HPackUtil.IndexType.NEVER : HPackUtil.IndexType.NONE;
index = b & 0x0F;
if (index == 0) {
state = State.READ_LITERAL_HEADER_NAME_LENGTH_PREFIX;
} else if (index == 0x0F) {
state = State.READ_INDEXED_HEADER_NAME;
} else {
// Index was stored as the prefix
this.ReadName(index);
state = State.READ_LITERAL_HEADER_VALUE_LENGTH_PREFIX;
}
}
break;
case State.READ_MAX_DYNAMIC_TABLE_SIZE:
int maxSize = Decoder.DecodeULE128(input);
if (maxSize == -1) {
return;
}
// Check for numerical overflow
if (maxSize > int.MaxValue - index) {
throw DECOMPRESSION_EXCEPTION;
}
this.SetDynamicTableSize(index + maxSize);
state = State.READ_HEADER_REPRESENTATION;
break;
case State.READ_INDEXED_HEADER:
int headerIndex = Decoder.DecodeULE128(input);
if (headerIndex == -1) {
return;
}
// Check for numerical overflow
if (headerIndex > int.MaxValue - index) {
throw DECOMPRESSION_EXCEPTION;
}
this.IndexHeader(index + headerIndex, addHeaderDelegate);
state = State.READ_HEADER_REPRESENTATION;
break;
case State.READ_INDEXED_HEADER_NAME:
// Header Name matches an entry in the Header Table
int nameIndex = Decoder.DecodeULE128(input);
if (nameIndex == -1) {
return;
}
// Check for numerical overflow
if (nameIndex > int.MaxValue - index) {
throw DECOMPRESSION_EXCEPTION;
}
this.ReadName(index + nameIndex);
state = State.READ_LITERAL_HEADER_VALUE_LENGTH_PREFIX;
break;
case State.READ_LITERAL_HEADER_NAME_LENGTH_PREFIX:
b = input.ReadSByte();
huffmanEncoded = (b & 0x80) == 0x80;
index = b & 0x7F;
if (index == 0x7f) {
state = State.READ_LITERAL_HEADER_NAME_LENGTH;
} else {
nameLength = index;
// Disallow empty names -- they cannot be represented in HTTP/1.x
if (nameLength == 0) {
throw DECOMPRESSION_EXCEPTION;
}
// Check name length against max header size
if (this.ExceedsMaxHeaderSize(nameLength)) {
if (indexType == HPackUtil.IndexType.NONE) {
// Name is unused so skip bytes
name = EMPTY;
this.skipLength = nameLength;
state = State.SKIP_LITERAL_HEADER_NAME;
break;
}
// Check name length against max dynamic table size
if (nameLength + HeaderField.HEADER_ENTRY_OVERHEAD > this.dynamicTable.Capacity) {
this.dynamicTable.Clear();
name = EMPTY;
this.skipLength = nameLength;
state = State.SKIP_LITERAL_HEADER_NAME;
break;
}
}
state = State.READ_LITERAL_HEADER_NAME;
}
break;
case State.READ_LITERAL_HEADER_NAME_LENGTH:
// Header Name is a Literal String
nameLength = Decoder.DecodeULE128(input);
if (nameLength == -1) {
return;
}
// Check for numerical overflow
if (nameLength > int.MaxValue - index) {
throw DECOMPRESSION_EXCEPTION;
}
nameLength += index;
// Check name length against max header size
if (this.ExceedsMaxHeaderSize(nameLength)) {
if (indexType == HPackUtil.IndexType.NONE) {
// Name is unused so skip bytes
name = EMPTY;
this.skipLength = nameLength;
state = State.SKIP_LITERAL_HEADER_NAME;
break;
}
// Check name length against max dynamic table size
if (nameLength + HeaderField.HEADER_ENTRY_OVERHEAD > this.dynamicTable.Capacity) {
this.dynamicTable.Clear();
name = EMPTY;
this.skipLength = nameLength;
state = State.SKIP_LITERAL_HEADER_NAME;
break;
}
}
state = State.READ_LITERAL_HEADER_NAME;
break;
case State.READ_LITERAL_HEADER_NAME:
// Wait until entire name is readable
if (input.BaseStream.Length - input.BaseStream.Position < nameLength) {
return;
}
name = this.ReadStringLiteral(input, nameLength);
state = State.READ_LITERAL_HEADER_VALUE_LENGTH_PREFIX;
break;
case State.SKIP_LITERAL_HEADER_NAME:
this.skipLength -= (int)input.BaseStream.Seek(this.skipLength, SeekOrigin.Current);
if (this.skipLength < 0) {
this.skipLength = 0;
}
if (this.skipLength == 0) {
state = State.READ_LITERAL_HEADER_VALUE_LENGTH_PREFIX;
}
break;
case State.READ_LITERAL_HEADER_VALUE_LENGTH_PREFIX:
b = input.ReadSByte();
huffmanEncoded = (b & 0x80) == 0x80;
index = b & 0x7F;
if (index == 0x7f) {
state = State.READ_LITERAL_HEADER_VALUE_LENGTH;
} else {
this.valueLength = index;
// Check new header size against max header size
long newHeaderSize1 = (long)nameLength + (long)this.valueLength;
if (this.ExceedsMaxHeaderSize(newHeaderSize1)) {
// truncation will be reported during endHeaderBlock
headerSize = maxHeaderSize + 1;
if (indexType == HPackUtil.IndexType.NONE) {
// Value is unused so skip bytes
state = State.SKIP_LITERAL_HEADER_VALUE;
break;
}
// Check new header size against max dynamic table size
if (newHeaderSize1 + HeaderField.HEADER_ENTRY_OVERHEAD > this.dynamicTable.Capacity) {
this.dynamicTable.Clear();
state = State.SKIP_LITERAL_HEADER_VALUE;
break;
}
}
if (this.valueLength == 0) {
this.InsertHeader(addHeaderDelegate, name, EMPTY, indexType);
state = State.READ_HEADER_REPRESENTATION;
} else {
state = State.READ_LITERAL_HEADER_VALUE;
}
}
break;
case State.READ_LITERAL_HEADER_VALUE_LENGTH:
// Header Value is a Literal String
this.valueLength = Decoder.DecodeULE128(input);
if (this.valueLength == -1) {
return;
}
// Check for numerical overflow
if (this.valueLength > int.MaxValue - index) {
throw DECOMPRESSION_EXCEPTION;
}
this.valueLength += index;
// Check new header size against max header size
long newHeaderSize2 = (long)nameLength + (long)this.valueLength;
if (newHeaderSize2 + headerSize > maxHeaderSize) {
// truncation will be reported during endHeaderBlock
headerSize = maxHeaderSize + 1;
if (indexType == HPackUtil.IndexType.NONE) {
// Value is unused so skip bytes
state = State.SKIP_LITERAL_HEADER_VALUE;
break;
}
// Check new header size against max dynamic table size
if (newHeaderSize2 + HeaderField.HEADER_ENTRY_OVERHEAD > this.dynamicTable.Capacity) {
this.dynamicTable.Clear();
state = State.SKIP_LITERAL_HEADER_VALUE;
break;
}
}
state = State.READ_LITERAL_HEADER_VALUE;
break;
case State.READ_LITERAL_HEADER_VALUE:
// Wait until entire value is readable
if (input.BaseStream.Length - input.BaseStream.Position < this.valueLength) {
return;
}
byte[] value = this.ReadStringLiteral(input, this.valueLength);
this.InsertHeader(addHeaderDelegate, name, value, indexType);
state = State.READ_HEADER_REPRESENTATION;
break;
case State.SKIP_LITERAL_HEADER_VALUE:
this.valueLength -= (int)input.BaseStream.Seek(this.valueLength, SeekOrigin.Current);
if (this.valueLength < 0) {
this.valueLength = 0;
}
if (this.valueLength == 0) {
state = State.READ_HEADER_REPRESENTATION;
}
break;
default:
throw new Exception("should not reach here");
}
}
}
private void AddHeader(AddHeaderDelegate addHeaderDelegate, byte[] name, byte[] value, bool sensitive)
{
if (name.Length == 0) {
throw new ArgumentException("name is empty");
}
long newSize = headerSize + name.Length + value.Length;
if (newSize <= maxHeaderSize) {
addHeaderDelegate (name, value, sensitive);
headerSize = (int)newSize;
} else {
// truncation will be reported during endHeaderBlock
headerSize = maxHeaderSize + 1;
}
}
private void InsertHeader(AddHeaderDelegate addHeaderDelegate, byte[] name, byte[] value, HPackUtil.IndexType indexType)
{
this.AddHeader(addHeaderDelegate, name, value, indexType == HPackUtil.IndexType.NEVER);
switch(indexType) {
case HPackUtil.IndexType.NONE:
case HPackUtil.IndexType.NEVER:
break;
case HPackUtil.IndexType.INCREMENTAL:
this.dynamicTable.Add(new HeaderField(name, value));
break;
default:
throw new Exception("should not reach here");
}
}
private void IndexHeader(int index, AddHeaderDelegate addHeaderDelegate)
{
if (index <= StaticTable.Length) {
HeaderField headerField = StaticTable.GetEntry(index);
this.AddHeader(addHeaderDelegate, headerField.Name, headerField.Value, false);
} else if (index - StaticTable.Length <= this.dynamicTable.Length()) {
HeaderField headerField = this.dynamicTable.GetEntry(index - StaticTable.Length);
this.AddHeader(addHeaderDelegate, headerField.Name, headerField.Value, false);
} else {
throw new IOException("illegal index value (" + index + ")");
}
}
static void TryAddToCollection(AddHeaderDelegate addHeader, string headerName, string value)
{
try
{
addHeader(headerName, value);
}
catch (ArgumentException ex)
{
string encodedValue = null;
if (TryEncodeHeaderValueAsUri(headerName, value, out encodedValue))
{
//note: if the hosthame of a referer header contains illegal chars, we will still throw from here
//because Uri will not fix this up for us, which is ok. The request will get rejected in the error code path.
addHeader(headerName, encodedValue);
}
else
{
// In self-hosted scenarios, some of the headers like Content-Length cannot be added directly.
// It will throw ArgumentException instead.
FxTrace.Exception.AsInformation(ex);
}
}
}
public static void CopyHeaders(NameValueCollection headers, AddHeaderDelegate addHeader)
{
//this nested loop logic was copied from NameValueCollection.Add(NameValueCollection)
int count = headers.Count;
for (int i = 0; i < count; i++)
{
string key = headers.GetKey(i);
string[] values = headers.GetValues(i);
if (values != null)
{
for (int j = 0; j < values.Length; j++)
{
TryAddToCollection(addHeader, key, values[j]);
}
}
else
{
addHeader(key, null);
}
}
}
static void CopyHeaders(HttpHeaders headers, AddHeaderDelegate addHeader)
{
foreach (KeyValuePair<string, IEnumerable<string>> header in headers)
{
foreach (string value in header.Value)
{
TryAddToCollection(addHeader, header.Key, value);
}
}
}
public static void CopyHeaders(HttpResponseMessage response, AddHeaderDelegate addHeader)
{
HttpChannelUtilities.CopyHeaders(response.Headers, addHeader);
if (response.Content != null)
{
HttpChannelUtilities.CopyHeaders(response.Content.Headers, addHeader);
}
}
