FakeDeck/FakeeDeck/Class/HttpServer.cs

317 lines
13 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System;
using System.IO;
using System.Text;
using System.Net;
using System.Threading.Tasks;
using FakeeDeck.ButtonType;
using System.Web;
using static System.Net.WebRequestMethods;
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using File = System.IO.File;
using System.Reflection.Metadata;
using System.Xml.Linq;
using System.Reflection;
using System.Text.Json;
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using System.Collections;
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namespace FakeeDeck.Class
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{
internal class HttpServer
{
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private static IDictionary<string, string> mimeTypes = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase) {
{".asf", "video/x-ms-asf"},
{".asx", "video/x-ms-asf"},
{".avi", "video/x-msvideo"},
{".bin", "application/octet-stream"},
{".cco", "application/x-cocoa"},
{".crt", "application/x-x509-ca-cert"},
{".css", "text/css"},
{".deb", "application/octet-stream"},
{".der", "application/x-x509-ca-cert"},
{".dll", "application/octet-stream"},
{".dmg", "application/octet-stream"},
{".ear", "application/java-archive"},
{".eot", "application/octet-stream"},
{".exe", "application/octet-stream"},
{".flv", "video/x-flv"},
{".gif", "image/gif"},
{".hqx", "application/mac-binhex40"},
{".htc", "text/x-component"},
{".htm", "text/html"},
{".html", "text/html"},
{".ico", "image/x-icon"},
{".img", "application/octet-stream"},
{".iso", "application/octet-stream"},
{".jar", "application/java-archive"},
{".jardiff", "application/x-java-archive-diff"},
{".jng", "image/x-jng"},
{".jnlp", "application/x-java-jnlp-file"},
{".jpeg", "image/jpeg"},
{".jpg", "image/jpeg"},
{".js", "application/x-javascript"},
{".mml", "text/mathml"},
{".mng", "video/x-mng"},
{".mov", "video/quicktime"},
{".mp3", "audio/mpeg"},
{".mpeg", "video/mpeg"},
{".mpg", "video/mpeg"},
{".msi", "application/octet-stream"},
{".msm", "application/octet-stream"},
{".msp", "application/octet-stream"},
{".pdb", "application/x-pilot"},
{".pdf", "application/pdf"},
{".pem", "application/x-x509-ca-cert"},
{".pl", "application/x-perl"},
{".pm", "application/x-perl"},
{".png", "image/png"},
{".prc", "application/x-pilot"},
{".ra", "audio/x-realaudio"},
{".rar", "application/x-rar-compressed"},
{".rpm", "application/x-redhat-package-manager"},
{".rss", "text/xml"},
{".run", "application/x-makeself"},
{".sea", "application/x-sea"},
{".shtml", "text/html"},
{".sit", "application/x-stuffit"},
{".swf", "application/x-shockwave-flash"},
{".tcl", "application/x-tcl"},
{".tk", "application/x-tcl"},
{".txt", "text/plain"},
{".war", "application/java-archive"},
{".wbmp", "image/vnd.wap.wbmp"},
{".wmv", "video/x-ms-wmv"},
{".xml", "text/xml"},
{".xpi", "application/x-xpinstall"},
{".zip", "application/zip"},
};
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public static HttpListener listener;
public static string url = "http://*:8000/";
public static int pageViews = 0;
public static int requestCount = 0;
public static string pageHeader =
"<!DOCTYPE>" +
"<html>" +
" <head>" +
" <title>HttpListener Example</title>" +
" <link href=\"https://yarnpkg.com/en/package/normalize.css\" rel=\"stylesheet\">" +
" <link href=\"https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css\" rel=\"stylesheet\">" +
" <link href=\"https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css\" rel=\"stylesheet\">" +
" </head>" +
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" <body>" +
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" <div class=\"d-flex flex-wrap\">" +
" <div class=\"m-2\">" +
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" <p style=\"margin-bottom: 0px; width: 150px;height: 150px;background-color: aquamarine;\" >Page Views: {0}</p>" +
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" </div>";
public static string pageFooter =
" <div class=\"m-2\">" +
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" <button style=\"width: 150px;height: 150px;background-color: aquamarine;\" onclick=\"!document.fullscreenElement ? document.documentElement.requestFullscreen() : document.exitFullscreen();\">" +
" <i class=\"fa-solid fa-maximize\"></i>" +
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" </button>" +
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" </div>" +
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" </div>" +
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" <script src=\"StaticFiles/app.js\"></script>" +
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" </body>" +
"</html>";
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public string pageData = "";
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private Dictionary<string, Dictionary<string, Action>> routes;
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public async Task HandleIncomingConnections()
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{
bool runServer = true;
// While a user hasn't visited the `shutdown` url, keep on handling requests
while (runServer)
{
// Will wait here until we hear from a connection
HttpListenerContext ctx = await listener.GetContextAsync();
// Peel out the requests and response objects
HttpListenerRequest req = ctx.Request;
HttpListenerResponse resp = ctx.Response;
// Print out some info about the request
Console.WriteLine("Request #: {0}", ++requestCount);
Console.WriteLine(req.Url.ToString());
Console.WriteLine(req.HttpMethod);
Console.WriteLine(req.UserHostName);
Console.WriteLine(req.UserAgent);
Console.WriteLine();
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if (req.HttpMethod == "POST")
{
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//Parse Port Parameters
Dictionary<string, string> postParams = parsePostRequestParameters(req);
// If `shutdown` url requested w/ POST, then shutdown the server after serving the page
if (req.Url.AbsolutePath == "/shutdown")
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{
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Console.WriteLine("Shutdown requested");
runServer = false;
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}
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else if (req.Url.AbsolutePath.StartsWith("/button"))
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{
try
{
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string module = req.Url.AbsolutePath.Replace("/button", "");
Console.WriteLine("Call module " + module);
callButtonAction(module, postParams);
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resp.StatusCode = (int)HttpStatusCode.OK;
}
catch (Exception ex)
{
byte[] errorData = Encoding.UTF8.GetBytes(ex.Message);
resp.ContentType = "text/html";
resp.ContentEncoding = Encoding.UTF8;
resp.ContentLength64 = errorData.LongLength;
resp.StatusCode = (int)HttpStatusCode.InternalServerError;
await resp.OutputStream.WriteAsync(errorData, 0, errorData.Length);
}
finally
{
resp.Close();
}
continue;
}
}
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else if (req.HttpMethod == "GET")
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{
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if (req.Url.AbsolutePath.Contains("."))
{
await servFileResponseAsync(req, resp);
}
else
{
await servViewResponseAsync(req, resp);
}
resp.Close();
continue;
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}
}
}
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public void serv()
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{
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// Create a Http server and start listening for incoming connections
listener = new HttpListener();
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listener.Prefixes.Add(url);
listener.Start();
Console.WriteLine("Listening for connections on {0}", url);
// Handle requests
Task listenTask = HandleIncomingConnections();
listenTask.GetAwaiter().GetResult();
// Close the listener
listener.Close();
}
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private static void callButtonAction(string module, Dictionary<string, string> postParams)
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{
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string cleanClass = "FakeeDeck.ButtonType." + module.Trim('/');
Type? buttonClass = Type.GetType(cleanClass, true);
if (buttonClass is null)
return;
MethodInfo? method = buttonClass.GetMethod("invokeAction");
if (method is null)
return;
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ParameterInfo[] pars = method.GetParameters();
List<object> parameters = new List<object>();
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foreach (ParameterInfo p in pars)
{
if (p == null)
{
continue;
}
if (p.Name != null && postParams.ContainsKey(p.Name))
{
parameters.Insert(p.Position, postParams[p.Name]);
}
else if (p.IsOptional && p.DefaultValue != null)
{
parameters.Insert(p.Position, p.DefaultValue);
}
}
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_ = method.Invoke(null, [.. parameters]).ToString();
}
private static async Task servFileResponseAsync(HttpListenerRequest req, HttpListenerResponse resp)
{
string filename = Path.Combine("./", req.Url.AbsolutePath.Substring(1));
if (!File.Exists(filename))
{
resp.StatusCode = (int)HttpStatusCode.NotFound;
resp.Close();
}
try
{
Stream input = new FileStream(filename, FileMode.Open);
string mime;
resp.ContentType = mimeTypes.TryGetValue(Path.GetExtension(filename), out mime)
? mime
: "application/octet-stream";
resp.ContentLength64 = input.Length;
resp.AddHeader("Date", DateTime.Now.ToString("r"));
resp.AddHeader("Last-Modified", File.GetLastWriteTime(filename).ToString("r"));
byte[] buffer = new byte[1024 * 32];
int nbytes;
while ((nbytes = input.Read(buffer, 0, buffer.Length)) > 0)
resp.OutputStream.Write(buffer, 0, nbytes);
input.Close();
resp.OutputStream.Flush();
resp.StatusCode = (int)HttpStatusCode.OK;
}
catch (Exception ex)
{
byte[] errorData = Encoding.UTF8.GetBytes(ex.Message);
resp.ContentType = "text/html";
resp.ContentEncoding = Encoding.UTF8;
resp.ContentLength64 = errorData.LongLength;
resp.StatusCode = (int)HttpStatusCode.InternalServerError;
await resp.OutputStream.WriteAsync(errorData, 0, errorData.Length);
}
}
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private async Task servViewResponseAsync(HttpListenerRequest req, HttpListenerResponse resp)
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{
string disableSubmit = false ? "disabled" : "";
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byte[] data = Encoding.UTF8.GetBytes(string.Format(pageHeader + this.pageData + pageFooter, pageViews, disableSubmit));
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resp.ContentType = "text/html";
resp.ContentEncoding = Encoding.UTF8;
resp.ContentLength64 = data.LongLength;
await resp.OutputStream.WriteAsync(data, 0, data.Length);
}
private static Dictionary<string, string> parsePostRequestParameters(HttpListenerRequest req)
{
Dictionary<string, string> postParams = new Dictionary<string, string>();
using (var reader = new StreamReader(req.InputStream, req.ContentEncoding))
{
string postData = reader.ReadToEnd();
var parsedData = HttpUtility.ParseQueryString(postData);
foreach (string key in parsedData)
{
postParams[key] = parsedData[key];
}
}
return postParams;
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}
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}
}