using System;
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using System.Text;
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using System.Threading;
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using System.Net;
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using System.IO;
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using System.Drawing;
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namespace tileserver
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{
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public class ControllerHTTP
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{
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private Thread thread = null;
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private MetaReader metaReader = new MetaReader();
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private HttpListener weblistener = null;
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public ControllerHTTP(int port)
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{
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try
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{
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weblistener = new HttpListener();
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weblistener.Prefixes.Add("http://*:" + port + "/"); // netsh http add urlacl url = "http://*:8080/" user = todos
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weblistener.Prefixes.Add("https://*:" + (port + 1) + "/"); // netsh http add urlacl url = "http://*:8080/" user = todos
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// Console.WriteLine("http://*:" + port + "/");
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weblistener.Start();
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thread = new Thread(work);
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thread.Start();
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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}
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public void work()
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{
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HttpListenerContext context = null;
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HttpListenerRequest request = null;
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HttpListenerResponse response = null;
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while (true)
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{
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try
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{
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context = weblistener.GetContext(); // Block until a connection comes in
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request = context.Request;
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response = context.Response;
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String path = request.Url.LocalPath;
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String function = getString(request, "request");
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if (function.Equals("GetMap", StringComparison.InvariantCultureIgnoreCase))
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{
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byte[] data = GetMap(request, path);
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response.StatusCode = 200;
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response.SendChunked = true;
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var output = response.OutputStream;
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output.Write(data, 0, data.Length);
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output.Close();
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}
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else
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{
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throw new Exception("501, Request not supported. Available requests (GetMap)");
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}
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}
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catch (ControllerHTTPException e)
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{
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sendError(response, e);
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}
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catch (Exception e)
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{
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sendError(response, new ControllerHTTPException(400, e.Message));
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}
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}
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}
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private void sendError(HttpListenerResponse response, ControllerHTTPException exception)
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{
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try
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{
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string responseString = "<html><body>" + exception.getMessage() + "</body></html>";
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var buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
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response.ContentLength64 = buffer.Length;
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var output = response.OutputStream;
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output.Write(buffer, 0, buffer.Length);
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output.Close();
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}
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catch (Exception)
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{
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}
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}
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private byte[] GetMap(HttpListenerRequest request, String path)
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{
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String service = getString(request, "service");
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{
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if (service.Equals("WMS", StringComparison.InvariantCultureIgnoreCase) == false)
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{
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throw new Exception("501, Service not supported, WMS required");
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}
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}
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String version = getString(request, "version");
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{
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if (version.Equals("1.1.1") == false)
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{
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throw new Exception("501, Version not supported, 1.1.1 required");
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}
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}
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String format = getString(request, "format");
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{
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if (format.Equals("image/png", StringComparison.InvariantCultureIgnoreCase) == false)
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{
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throw new Exception("501, Image type not supported, image/png required");
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}
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}
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String srs = getString(request, "srs");
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if (srs.Equals("OSGEO", StringComparison.InvariantCultureIgnoreCase) == true)
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{
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String[] layers = getStrings(request, "layers");
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String[] bbox = getStrings(request, "bbox");
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int x1 = Int32.Parse(bbox[0].Trim());
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int y1 = Int32.Parse(bbox[1].Trim());
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int zoom = Int32.Parse(bbox[2].Trim());
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int width = getInteger(request, "width");
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int height = getInteger(request, "height");
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int x2 = x1 + (int)Math.Ceiling((double)width / Program.TILE_SIZE) - 1;
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int y2 = y1 + (int)Math.Ceiling((double)height / Program.TILE_SIZE) - 1;
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return ImageFactory.getImageData(x1, y1, x2, y2, zoom, layers, width, height, path);
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}
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else if ((srs.Equals("EPSG:4326", StringComparison.InvariantCultureIgnoreCase) == true) || (srs.Equals("WGS84", StringComparison.InvariantCultureIgnoreCase) == true))
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{
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// http://127.0.0.1:8080/gis_mataro?service=WMS&request=GetMap&layers=lands,motorway&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A4326&width=256&height=256&bbox=2.4169921875,41.5414776667903,2.43896484375,41.5579215778042
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// http://127.0.0.1:8080/gis_mataro?service=WMS&request=GetMap&layers=lands,motorway&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A4326&width=256&height=256&bbox=2.4169921875,41.5579215778042,2.43896484375,41.5743613059891
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String[] layers = getStrings(request, "layers");
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String[] bbox = getStrings(request, "bbox");
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double lon1 = Double.Parse(bbox[0].Trim().Replace(".", ","));
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double lat1 = Double.Parse(bbox[1].Trim().Replace(".", ","));
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double lon2 = Double.Parse(bbox[2].Trim().Replace(".", ","));
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double lat2 = Double.Parse(bbox[3].Trim().Replace(".", ","));
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int width = getInteger(request, "width");
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int height = getInteger(request, "height");
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int zoom = getInteger(request, "zoom");
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if (zoom == 0)
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{
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for (int i = 1; i < 32; i++)
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{
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int x1 = (int)Math.Round(Mercator.longitudeToX(lon1, i));
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int y1 = (int)Math.Round(Mercator.latitudeToY(lat1, i));
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int x2 = (int)Math.Round(Mercator.longitudeToX(lon2, i));
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int y2 = (int)Math.Round(Mercator.latitudeToY(lat2, i));
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int pixelsx = Math.Abs(x2 - x1);
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int pixelsy = Math.Abs(y1 - y2);
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if ((pixelsx >= width) && (pixelsy >= height))
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{
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zoom = i;
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break;
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}
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}
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}
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if (zoom > 0)
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{
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if (lon1 > lon2) { double lon3 = lon2; lon2 = lon1; lon1 = lon3; };
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if (lat1 > lat2) { double lat3 = lat2; lat2 = lat1; lat1 = lat3; };
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int x1 = (int)Math.Round(Mercator.longitudeToX(lon1, zoom));
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int y1 = (int)Math.Round(Mercator.latitudeToY(lat1, zoom));
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int x2 = (int)Math.Round(Mercator.longitudeToX(lon2, zoom));
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int y2 = (int)Math.Round(Mercator.latitudeToY(lat2, zoom));
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int modulox = x1 % (int)Program.TILE_SIZE;
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int moduloy = y2 % (int)Program.TILE_SIZE;
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if ((modulox > 0) || (moduloy > 0))
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{
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int X1 = (int)(x1 / (int)Program.TILE_SIZE);
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int Y1 = (int)(y2 / (int)Program.TILE_SIZE);
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int X2 = (int)(x2 / (int)Program.TILE_SIZE) + 1;
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int Y2 = (int)(y1 / (int)Program.TILE_SIZE) + 1;
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if (modulox > 0) X2 = X2 + 1;
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if (moduloy > 0) Y2 = Y2 + 1;
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byte[] image = ImageFactory.getImageData(X1, Y1, X2, Y2, zoom, layers, (X2 - X1) * (int)Program.TILE_SIZE, (Y2 - Y1) * (int)Program.TILE_SIZE, path);
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return ImageFactory.crop(image, modulox, moduloy, width, height);
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}
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else
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{
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int X1 = (int)(x1 / (int)Program.TILE_SIZE);
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int Y1 = (int)(y2 / (int)Program.TILE_SIZE);
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int X2 = (int)(x2 / (int)Program.TILE_SIZE);
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int Y2 = (int)(y1 / (int)Program.TILE_SIZE);
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return ImageFactory.getImageData(X1, Y1, X2, Y2, zoom, layers, width, height, path);
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}
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}
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throw new ControllerHTTPException(501, "Bad coordinates with given size"); // Mercator, UTM
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}
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else if (srs.Equals("EPSG:3857", StringComparison.InvariantCultureIgnoreCase) == true)
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{
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//https://gis.stackexchange.com/questions/48949/epsg-3857-or-4326-for-googlemaps-openstreetmap-and-leaflet
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throw new ControllerHTTPException(501, "SRS not supported"); // Mercator, UTM
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}
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else
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{
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throw new ControllerHTTPException(501, "SRS not supported");
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}
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throw new ControllerHTTPException(400, "Bad request");
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/*
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bool transparent = getBoolean(request, "format");
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String bgcolor = getString(request, "bgcolor");
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String exceptions = getString(request, "exceptions");
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String elevation = getString(request, "elevation");
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String sld = getString(request, "sld");
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String wms = getString(request, "wms");
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String[] styles = getStrings(request, "styles");
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*/
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}
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private String getString(HttpListenerRequest request, String field)
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{
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try
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{
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String result = request.QueryString[field];
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if (result != null) return result;
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}
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catch (Exception)
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{
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}
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return "";
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}
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private int getInteger(HttpListenerRequest request, String field)
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{
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try
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{
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return Int32.Parse(getString(request, field));
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}
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catch (Exception e)
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{
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}
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return 0;
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}
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private String[] getStrings(HttpListenerRequest request, String field)
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{
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return getString(request, field).Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
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}
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private bool getBoolean(HttpListenerRequest request, String field)
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{
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return (getString(request, field).Equals("true", StringComparison.InvariantCultureIgnoreCase));
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}
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}
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public class ControllerHTTPException : Exception
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{
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private int code;
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private String message;
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public ControllerHTTPException(int code, String message)
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{
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this.code = code;
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this.message = message;
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}
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public int getCode()
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{
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return code;
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}
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public String getMessage()
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{
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return message;
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}
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}
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/*
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static void Main()
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{
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var web = new HttpListener();
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web.Prefixes.Add("http://localhost:8080/");
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Console.WriteLine("Listening..");
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* web.Start();
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Console.WriteLine(web.GetContext());
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var context = web.GetContext();
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var response = context.Response;
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const string responseString = "<html><body>Hello world</body></html>";
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var buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
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response.ContentLength64 = buffer.Length;
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var output = response.OutputStream;
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output.Write(buffer, 0, buffer.Length);
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Console.WriteLine(output);
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output.Close();
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web.Stop();
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Console.ReadKey();
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}
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http://172.16.11.187:9090/geoserver/SCT/wms?tiled=false&service=WMS&request=GetMap&layers=land,border_district,border_municipio,border_voivodato,railways,bridges,street&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=OSGEO&width=256&height=256&bbox=66422,48879,17
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http://127.0.0.1:8080/gis_mataro?service=WMS&request=GetMap&layers=land,border_district,border_municipio,border_voivodato,railways,bridges,street&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A4326&width=256&height=256&bbox=2.4169921875,41.52502957323801,2.427978515625,41.53325414281322
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http://172.16.11.187:9090/geoserver/SCT/wms?tiled=false&service=WMS&request=GetMap&layers=land,border_district,border_municipio,border_voivodato,railways,bridges,street&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A3857&width=256&height=256&x=66422&y=48879&zoom=17
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http://localhost:8080/geoserver/SCT/wms?tiled=false&service=WMS&request=GetMap&layers=land,border_district,border_municipio,border_voivodato,railways,bridges,street&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A3857&width=256&height=256&x=66422&y=48879&zoom=17
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http://localhost:8080/geoserver/SCT/wms?tiled=false&service=WMS&request=GetMap&layers=land,border_district,border_municipio,border_voivodato,railways,bridges,street&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A3857&width=256&height=256&x=66422&y=48879&zoom=17
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http://172.16.11.187:9090/geoserver/SCT/wms?tiled=false&service=WMS&request=GetMap&layers=land,border_district,border_municipio,border_voivodato,railways,bridges,street&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=OSGEO&width=256&height=256&bbox=66422,48879,17
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http://localhost:8080/geoserver/SCT/wms?tiled=false&service=WMS&request=GetMap&layers=layer1,layer2,layer3&styles=&format=image%2Fpng&transparent=true&version=1.1.1&srs=EPSG%3A3857&width=256&height=256&bbox=264166.3697535692,5094986.557376712,266612.35465869476,5097432.542281834
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http://cite.opengeospatial.org/OGCTestData/wms/1.1.1/spec/wms1.1.1.html#wmsops.getmap
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7.2.2 GetMap
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*/
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}
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