[UWP] Windows 10 IoT 製作一個小小的Server.
2015-09-07
目前10240 版本中，還沒有IIS ，本來想說可以寫一些網頁來控制的，不過目前網路上看官方的一些範例，是可以透過自己實作一個httpD ，所以我也動手實作看看，當然我改寫了一部分，我直接讓他可以讀取專案下面 Assets\html\ 的所有檔案
1. 一開始實作一個 TinyHttpdServer 繼承 IDisposable
public sealed class TinyHttpdServer : IDisposable
{//..
2.之後宣告一個 StreamSocketListener ，其實重點都在實作他
private readonly StreamSocketListener listener;
3. 其中讓他的 ConnectionReceived 必須要實作
listener.ConnectionReceived += (s, e) =>
ProcessRequestAsync(e.Socket);
/// <summary>/// 處理當ConnectionReceived 的時候/// </summary>/// <param name="socket"></param>private async void ProcessRequestAsync(StreamSocket socket)
{ // this works for text only StringBuilder request = new StringBuilder(); using (IInputStream input = socket.InputStream) {byte[] data = new byte[BufferSize];
IBuffer buffer = data.AsBuffer();
uint dataRead = BufferSize; while (dataRead == BufferSize) {await input.ReadAsync(buffer, BufferSize, InputStreamOptions.Partial);
request.Append(Encoding.UTF8.GetString(data, 0, data.Length));
dataRead = buffer.Length;
}
}
using (IOutputStream output = socket.OutputStream) {string requestMethod = request.ToString().Split('\n')[0];
string[] requestParts = requestMethod.Split(' ');
if (requestParts[0] == "GET")
await WriteResponseAsync(requestParts[1], output);
elsethrow new InvalidDataException("HTTP method not supported: "
+ requestParts[0]);
}
}
4.輸出的資料，我將資料直接對應至Assets/html/ ，我有簡單的處理MIME
/// <summary>/// 輸出的資料/// </summary>/// <param name="request">http://網址 以後的東西 /// ex. http://1xx.xx.xx.xx/sample.html 則此參數呈現 /sample.html</param>/// <param name="os"></param>/// <returns></returns>private async Task WriteResponseAsync(string request, IOutputStream os)
{string file = @"Assets\html" + request.Replace("\\", "/");
if (request == "/") { file = @"Assets\html\index.html";}
else if (!System.IO.File.Exists(file))
{ file = @"Assets\html\404.html";}
using (Stream resp = os.AsStreamForWrite())
{ var contentType = "text/html"; if (System.IO.Path.GetExtension(file).ToLower() == ".jpg" || System.IO.Path.GetExtension(file).ToLower() == ".png" || System.IO.Path.GetExtension(file).ToLower() == ".jpeg") { contentType = "image/jpeg";}
//很簡單的處理jpg and html 只是測試，別太講究
//Handling MIME and Head roughly.
byte[] bodyArray = File.ReadAllBytes(file);
MemoryStream stream = new MemoryStream(bodyArray);
string header = String.Format("HTTP/1.1 200 OK\r\n" + "Content-Length: {0}\r\n" + "content-type: {1}\r\n" +"Connection: close\r\n\r\n",
stream.Length, contentType);
byte[] headerArray = Encoding.UTF8.GetBytes(header);await resp.WriteAsync(headerArray, 0, headerArray.Length);
await stream.CopyToAsync(resp);
await resp.FlushAsync();
}
}
5.呼叫，我開啟的5978的port
TinyHttpdServer ths=new TinyHttpdServer(5978);ths.Start();
6.打開權限，Internet(Client) 、 Internet(Client & Server ) 
7. 很重要所以我要說三次
不要用本機電腦開瀏覽器測試，換一台同網域的其他電腦
不要用本機電腦開瀏覽器測試，換一台同網域的其他電腦
不要用本機電腦開瀏覽器測試，換一台同網域的其他電腦，
結果:
圖片測試
Reference:
https://dev.windows.com/en-us/samples
https://www.hackster.io/windowsiot/blinky-webserver-sample
source code:
https://github.com/donma/Windows10IoT-TinyHttpServer