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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Net.Http.Formatting.DataSets;
using System.Text;
using Microsoft.TestCommon;
using Xunit;
using Xunit.Extensions;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Net.Http.Formatting.Parsers
{
public class HttpRequestLineParserTests
{
[Fact]
[Trait("Description", "HttpRequestLineParser is internal class")]
public void TypeIsCorrect()
{
Assert.Type.HasProperties<HttpRequestLineParser>(TypeAssert.TypeProperties.IsClass);
}
internal static byte[] CreateBuffer(string method, string address, string version)
{
return CreateBuffer(method, address, version, false);
}
private static byte[] CreateBuffer(string method, string address, string version, bool withLws)
{
const string SP = " ";
const string HTAB = "\t";
const string CRLF = "\r\n";
string lws = SP;
if (withLws)
{
lws = SP + SP + HTAB + SP;
}
string requestLine = String.Format("{0}{1}{2}{3}{4}{5}", method, lws, address, lws, version, CRLF);
return Encoding.UTF8.GetBytes(requestLine);
}
private static ParserState ParseBufferInSteps(HttpRequestLineParser parser, byte[] buffer, int readsize, out int totalBytesConsumed)
{
ParserState state = ParserState.Invalid;
totalBytesConsumed = 0;
while (totalBytesConsumed <= buffer.Length)
{
int size = Math.Min(buffer.Length - totalBytesConsumed, readsize);
byte[] parseBuffer = new byte[size];
Buffer.BlockCopy(buffer, totalBytesConsumed, parseBuffer, 0, size);
int bytesConsumed = 0;
state = parser.ParseBuffer(parseBuffer, parseBuffer.Length, ref bytesConsumed);
totalBytesConsumed += bytesConsumed;
if (state != ParserState.NeedMoreData)
{
return state;
}
}
return state;
}
private static void ValidateResult(HttpUnsortedRequest requestLine, string method, string requestUri, Version version)
{
Assert.Equal(new HttpMethod(method), requestLine.Method);
Assert.Equal(requestUri, requestLine.RequestUri);
Assert.Equal(version, requestLine.Version);
}
[Fact]
[Trait("Description", "HttpRequestLineParser constructor throws on invalid arguments")]
public void HttpRequestLineParserConstructorTest()
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
Assert.NotNull(requestLine);
Assert.ThrowsArgumentGreaterThanOrEqualTo(() => new HttpRequestLineParser(requestLine, ParserData.MinRequestLineSize - 1),
"maxRequestLineSize", ParserData.MinRequestLineSize.ToString(), ParserData.MinRequestLineSize - 1);
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, ParserData.MinRequestLineSize);
Assert.NotNull(parser);
Assert.ThrowsArgumentNull(() => { new HttpRequestLineParser(null, ParserData.MinRequestLineSize); }, "httpRequest");
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer throws on null buffer.")]
public void RequestLineParserNullBuffer()
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, ParserData.MinRequestLineSize);
Assert.NotNull(parser);
int bytesConsumed = 0;
Assert.ThrowsArgumentNull(() => { parser.ParseBuffer(null, 0, ref bytesConsumed); }, "buffer");
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer parses minimum requestline.")]
public void RequestLineParserMinimumBuffer()
{
byte[] data = CreateBuffer("G", "/", "HTTP/1.1");
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, ParserData.MinRequestLineSize);
Assert.NotNull(parser);
int bytesConsumed = 0;
ParserState state = parser.ParseBuffer(data, data.Length, ref bytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, bytesConsumed);
ValidateResult(requestLine, "G", "/", new Version("1.1"));
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer rejects LWS requestline.")]
public void RequestLineParserRejectsLws()
{
byte[] data = CreateBuffer("GET", "/", "HTTP/1.1", true);
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, data.Length);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer parses standard methods.")]
public void RequestLineParserAcceptsStandardMethods()
{
foreach (HttpMethod method in HttpUnitTestDataSets.AllHttpMethods)
{
byte[] data = CreateBuffer(method.ToString(), "/", "HTTP/1.1");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, data.Length);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, totalBytesConsumed);
ValidateResult(requestLine, method.ToString(), "/", new Version("1.1"));
}
}
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer parses custom methods.")]
public void RequestLineParserAcceptsCustomMethods()
{
foreach (HttpMethod method in HttpUnitTestDataSets.CustomHttpMethods)
{
byte[] data = CreateBuffer(method.ToString(), "/", "HTTP/1.1");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, data.Length);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, totalBytesConsumed);
ValidateResult(requestLine, method.ToString(), "/", new Version("1.1"));
}
}
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer rejects invalid method")]
public void RequestLineParserRejectsInvalidMethod()
{
foreach (string invalidMethod in ParserData.InvalidMethods)
{
byte[] data = CreateBuffer(invalidMethod, "/", "HTTP/1.1");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
}
[Fact]
[Trait("Description", "HttpRequestLineParser.ParseBuffer rejects invalid URI.")]
public void RequestLineParserRejectsInvalidUri()
{
foreach (string invalidRequestUri in ParserData.InvalidRequestUris)
{
byte[] data = CreateBuffer("GET", invalidRequestUri, "HTTP/1.1");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
}
public static IEnumerable<object[]> Versions
{
get { return ParserData.Versions; }
}
[Theory]
[PropertyData("Versions")]
[Trait("Description", "HttpRequestLineParser.ParseBuffer accepts valid versions.")]
public void RequestLineParserAcceptsValidVersion(Version version)
{
byte[] data = CreateBuffer("GET", "/", String.Format("HTTP/{0}", version.ToString(2)));
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(data.Length, totalBytesConsumed);
ValidateResult(requestLine, "GET", "/", version);
}
}
public static IEnumerable<object[]> InvalidVersions
{
get { return ParserData.InvalidVersions; }
}
[Theory]
[PropertyData("InvalidVersions")]
[Trait("Description", "HttpRequestLineParser.ParseBuffer rejects invalid protocol version.")]
public void RequestLineParserRejectsInvalidVersion(string invalidVersion)
{
byte[] data = CreateBuffer("GET", "/", invalidVersion);
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedRequest requestLine = new HttpUnsortedRequest();
HttpRequestLineParser parser = new HttpRequestLineParser(requestLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
}
}
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