public async Task ReadLineWhenReaderNoBuffer()
{
using (var ms = new MemoryStream(Encoding.Default.GetBytes(readerTestString)))
{
RebufferableStreamReader reader = new RebufferableStreamReader(ms, Encoding.Default);
string line = await reader.ReadLineAsync();
string nextLine = await reader.ReadLineAsync();
Assert.AreEqual(line, "ni hao wo shi zhanghao");
Assert.AreEqual(nextLine, "this is test!");
}
}
public async Task ParseAsync(string boundaryKey = null)
{
if (string.IsNullOrEmpty(boundaryKey))
{
boundaryKey = await DetectBoundaryKey(reader);
}
boundary = string.Format("--{0}", boundaryKey);
endBoundary = string.Format("--{0}--", boundaryKey);
boundaryBytes = encoding.GetBytes(boundary);
endBoundaryBytes = encoding.GetBytes(endBoundary);
string line = await reader.ReadLineAsync();
while (!this.readEndBoundary)
{
string partHeader = string.Empty;
while ((line = await reader.ReadLineAsync()) != string.Empty)
{
if (line != boundary)
{
partHeader += line;
}
}
Dictionary <string, string> partHeaders;
try
{
partHeaders = partHeader.Replace("\r\n", ";").Split(';')
.Select(x => x.Split(new[] { ':', '=' }))
.ToDictionary(
x => x[0].Trim().Replace("\"", string.Empty).ToLower(),
x => x[1].Trim().Replace("\"", string.Empty));
}
catch
{
throw new HttpRequestParseException("http报文实体格式错误");
}
if (!partHeaders.ContainsKey("filename"))
{
await ParseParameterPartAsync(reader, partHeaders);
}
else
{
await ParseFilePartAsync(reader, partHeaders);
}
}
}
private async Task ParseParameterPartAsync(RebufferableStreamReader reader, Dictionary <string, string> partHeaders)
{
StringBuilder value = new StringBuilder();
string line = await reader.ReadLineAsync();
while (line != endBoundary && line != boundary)
{
value.Append(line);
line = await reader.ReadLineAsync();
}
if (line == endBoundary)
{
this.readEndBoundary = true;
}
Parameters[partHeaders["name"]] = value.ToString();
}
private async Task <string> DetectBoundaryKey(RebufferableStreamReader reader)
{
var line = await reader.ReadLineAsync();
var boundary = string.Concat(line.Skip(2));
reader.Rebuffer(encoding.GetBytes("--" + boundary + "\r\n"));
return(boundary);
}
public async Task ReadLineWhenReaderHaveBufferAndNoLineInBuffer()
{
using (var ms = new MemoryStream(Encoding.Default.GetBytes(readerTestString)))
{
RebufferableStreamReader reader = new RebufferableStreamReader(ms, Encoding.Default);
reader.Rebuffer(Encoding.Default.GetBytes(noLineBufferTestString));
var line = await reader.ReadLineAsync();
var secondLine = await reader.ReadLineAsync();
var thirdLine = await reader.ReadLineAsync();
Assert.AreEqual(line, noLineBufferTestString + "ni hao wo shi zhanghao");
Assert.AreEqual(secondLine, "this is test!");
Assert.IsTrue(string.IsNullOrEmpty(thirdLine));
}
}
public async Task ReadLineWhenLineInBuffer()
{
using (var ms = new MemoryStream(Encoding.Default.GetBytes(readerTestString)))
{
RebufferableStreamReader reader = new RebufferableStreamReader(ms, Encoding.Default);
reader.Rebuffer(Encoding.Default.GetBytes(lineBufferTestString));
var line = await reader.ReadLineAsync();
var secondLine = await reader.ReadLineAsync();
var thirdLine = await reader.ReadLineAsync();
Assert.AreEqual(line, "hahaha");
Assert.AreEqual(secondLine, "hehe" + "ni hao wo shi zhanghao");
Assert.AreEqual(thirdLine, "this is test!");
reader.Rebuffer(Encoding.Default.GetBytes("hello world"));
var fourLine = await reader.ReadLineAsync();
Assert.AreEqual(fourLine, "hello world");
}
}