public void EncodeInPlace() { const int numberOfBytes = 15; var list = new List <byte>(); for (int value = 0; value < numberOfBytes; value++) { list.Add((byte)value); } // padding for (int i = 0; i < (numberOfBytes / 3) + 2; i++) { list.Add(0); } var testBytes = list.ToArray(); for (int numberOfBytesToTest = 1; numberOfBytesToTest <= numberOfBytes; numberOfBytesToTest++) { var copy = testBytes.Clone(); var expectedText = Convert.ToBase64String(testBytes, 0, numberOfBytesToTest); Assert.Equal(OperationStatus.Done, Base64.BytesToUtf8InPlace(testBytes, numberOfBytesToTest, out int bytesWritten)); Assert.Equal(Base64.BytesToUtf8Length(numberOfBytesToTest), bytesWritten); var encodedText = Text.Encoding.ASCII.GetString(testBytes, 0, bytesWritten); Assert.Equal(expectedText, encodedText); } }
public static bool TryWrite(Span <byte> output, Sha256 hash, string keyType, string verb, string resourceId, string resourceType, string tokenVersion, DateTime utc, out int bytesWritten) { int written, consumed, totalWritten = 0; bytesWritten = 0; Span <byte> buffer = stackalloc byte[AuthenticationHeaderBufferSize]; s_type.CopyTo(buffer); totalWritten += s_type.Length; var bufferSlice = buffer.Slice(totalWritten); if (Encodings.Utf16.ToUtf8(keyType.AsReadOnlySpan().AsBytes(), bufferSlice, out consumed, out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } totalWritten += written; bufferSlice = buffer.Slice(totalWritten); s_ver.CopyTo(bufferSlice); totalWritten += s_ver.Length; bufferSlice = buffer.Slice(totalWritten); if (Encodings.Utf16.ToUtf8(tokenVersion.AsReadOnlySpan().AsBytes(), bufferSlice, out consumed, out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } totalWritten += written; bufferSlice = buffer.Slice(totalWritten); s_sig.CopyTo(bufferSlice); totalWritten += s_sig.Length; var front = buffer.Slice(0, totalWritten); var payload = buffer.Slice(totalWritten); totalWritten = 0; if (verb.Equals("GET", StringComparison.Ordinal) || verb.Equals("get", StringComparison.Ordinal)) { s_get.CopyTo(payload); totalWritten += s_get.Length; } else if (verb.Equals("POST", StringComparison.Ordinal) || verb.Equals("post", StringComparison.Ordinal)) { s_post.CopyTo(payload); totalWritten += s_post.Length; } else if (verb.Equals("DELETE", StringComparison.Ordinal) || verb.Equals("delete", StringComparison.Ordinal)) { s_delete.CopyTo(payload); totalWritten += s_delete.Length; } else { if (Encodings.Utf16.ToUtf8(verb.AsReadOnlySpan().AsBytes(), payload, out consumed, out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } if (Encodings.Ascii.ToLowerInPlace(payload.Slice(0, written), out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } payload[written] = (byte)'\n'; totalWritten += written + 1; } bufferSlice = payload.Slice(totalWritten); if (Encodings.Utf16.ToUtf8(resourceType.AsReadOnlySpan().AsBytes(), bufferSlice, out consumed, out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } if (Encodings.Ascii.ToLowerInPlace(bufferSlice.Slice(0, written), out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } bufferSlice[written] = (byte)'\n'; totalWritten += written + 1; bufferSlice = payload.Slice(totalWritten); if (Encodings.Utf16.ToUtf8(resourceId.AsReadOnlySpan().AsBytes(), bufferSlice, out consumed, out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } bufferSlice[written] = (byte)'\n'; totalWritten += written + 1; bufferSlice = payload.Slice(totalWritten); if (!Utf8Formatter.TryFormat(utc, bufferSlice, out written, 'l')) { throw new NotImplementedException("need to resize buffer"); } bufferSlice[written] = (byte)'\n'; totalWritten += written + 1; bufferSlice = payload.Slice(totalWritten); bufferSlice[0] = (byte)'\n'; totalWritten += 1; hash.Append(buffer.Slice(front.Length, totalWritten)); hash.GetHash(buffer.Slice(front.Length, hash.OutputSize)); if (Base64.BytesToUtf8InPlace(buffer.Slice(front.Length), hash.OutputSize, out written) != OperationStatus.Done) { throw new NotImplementedException("need to resize buffer"); } var len = front.Length + written; if (UrlEncoder.Utf8.Encode(buffer.Slice(0, len), output, out consumed, out bytesWritten) != OperationStatus.Done) { bytesWritten = 0; return(false); } return(true); }
public static bool TryWrite(Span <byte> output, Sha256 hash, string verb, string canonicalizedResource, DateTime utc, out int bytesWritten) { int written, consumed; bytesWritten = 0; if (verb.Equals("GET", StringComparison.Ordinal)) { if (output.Length < 3) { bytesWritten = 0; return(false); } s_GET.CopyTo(output); bytesWritten += s_GET.Length; } else { if (Encodings.Utf16.ToUtf8(verb.AsReadOnlySpan().AsBytes(), output, out consumed, out written) != OperationStatus.Done) { bytesWritten = 0; return(false); } output[written] = (byte)'\n'; bytesWritten += written + 1; } var free = output.Slice(bytesWritten); s_emptyHeaders.CopyTo(free); bytesWritten += s_emptyHeaders.Length; free = output.Slice(bytesWritten); if (!Utf8Formatter.TryFormat(utc, free, out written, 'R')) { bytesWritten = 0; return(false); } free[written] = (byte)'\n'; bytesWritten += written + 1; free = output.Slice(bytesWritten); if (Encodings.Utf16.ToUtf8(canonicalizedResource.AsReadOnlySpan().AsBytes(), free, out consumed, out written) != OperationStatus.Done) { bytesWritten = 0; return(false); } bytesWritten += written; var formatted = output.Slice(0, bytesWritten); hash.Append(formatted); hash.GetHash(output.Slice(0, hash.OutputSize)); if (Base64.BytesToUtf8InPlace(output, hash.OutputSize, out written) != OperationStatus.Done) { bytesWritten = 0; return(false); } bytesWritten = written; return(true); }