public void WriteToContextAndFlush(IContextResponse response)
{
response.Clear();
response.ContentType = ContentType;
using (XmlWriter writer = response.CreateXmlWriter())
Capabilities.WriteTo(writer);
response.End();
}
public void WriteToContextAndFlush(IContextResponse response)
{
response.Clear();
response.ContentType = ContentType;
using (XmlWriter writer = response.CreateXmlWriter())
Capabilities.WriteTo(writer);
response.End();
}
public Context(HttpContext context)
{
if (context == null)
throw new ArgumentNullException("context", "An attempt was made to access the WMS server outside a valid HttpContext");
_request = new ContextRequest(context);
_response = new ContextResponse(context);
}
public Context(HttpContext context)
{
if (context == null)
{
throw new ArgumentNullException("context", "An attempt was made to access the WMS server outside a valid HttpContext");
}
_request = new ContextRequest(context);
_response = new ContextResponse(context);
}
public void WriteToContextAndFlush(IContextResponse response)
{
response.Clear();
if (Charset != null)
{
//"windows-1252";
response.Charset = Charset;
}
response.BufferOutput = _bufferOutput;
response.Write(Response);
response.End();
}
public void WriteToContextAndFlush(IContextResponse response)
{
response.Clear();
if (Charset != null)
{
//"windows-1252";
response.Charset = Charset;
}
response.BufferOutput = _bufferOutput;
response.Write(Response);
response.End();
}
public override void ProcessRequest(IContext context)
{
IContextRequest request = context.Request;
IContextResponse response = context.Response;
try
{
string s = request.GetParam("BBOX");
if (String.IsNullOrEmpty(s))
{
throw new WmsInvalidParameterException("BBOX");
}
Map map = GetMap(request);
LayerCollection layers = map.Layers;
ILayer first = layers.First();
bool flip = first.TargetSRID == 4326;
BoundingBox bbox = AbstractHandler.ParseBBOX(s, flip);
if (bbox == null)
{
throw new WmsInvalidBboxException(s);
}
string ls = request.GetParam("LAYERS");
if (!String.IsNullOrEmpty(ls))
{
string[] strings = ls.Split(',');
foreach (ILayer layer in layers)
{
if (!strings.Contains(layer.LayerName))
{
layer.Enabled = false;
}
}
}
IEnumerable <GeoJSON> items = GetData(map, bbox);
StringWriter writer = new StringWriter();
GeoJSONWriter.Write(items, writer);
string buffer = writer.ToString();
IHandlerResponse result = new GetFeatureInfoResponseJson(buffer);
result.WriteToContextAndFlush(response);
}
catch (WmsExceptionBase ex)
{
ex.WriteToContextAndFlush(response);
}
}
public virtual void WriteToContextAndFlush(IContextResponse response)
{
response.Clear();
response.ContentType = "text/xml";
response.Write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
response.Write(
"<ServiceExceptionReport version=\"1.3.0\" xmlns=\"http://www.opengis.net/ogc\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.opengis.net/ogc http://schemas.opengis.net/wms/1.3.0/exceptions_1_3_0.xsd\">\n");
response.Write("<ServiceException");
if (ExceptionCode != WmsExceptionCode.NotApplicable)
response.Write(" code=\"" + ExceptionCode + "\"");
response.Write(">" + Message + "</ServiceException>\n");
response.Write("</ServiceExceptionReport>");
response.End();
}
public void WriteToContextAndFlush(IContextResponse response)
{
//Png can't stream directy. Going through a memorystream instead
byte[] buffer;
using (MemoryStream ms = new MemoryStream())
{
Image.Save(ms, CodecInfo, null);
Image.Dispose();
buffer = ms.ToArray();
}
response.Clear();
response.ContentType = CodecInfo.MimeType;
response.Write(buffer);
response.End();
}
public void WriteToContextAndFlush(IContextResponse response)
{
//Png can't stream directy. Going through a memorystream instead
byte[] buffer;
using (MemoryStream ms = new MemoryStream())
{
Image.Save(ms, CodecInfo, null);
Image.Dispose();
buffer = ms.ToArray();
}
response.Clear();
response.ContentType = CodecInfo.MimeType;
response.Write(buffer);
response.End();
}
public virtual void WriteToContextAndFlush(IContextResponse response)
{
response.Clear();
response.ContentType = "text/xml";
response.Write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
response.Write(
"<ServiceExceptionReport version=\"1.3.0\" xmlns=\"http://www.opengis.net/ogc\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.opengis.net/ogc http://schemas.opengis.net/wms/1.3.0/exceptions_1_3_0.xsd\">\n");
response.Write("<ServiceException");
if (ExceptionCode != WmsExceptionCode.NotApplicable)
{
response.Write(" code=\"" + ExceptionCode + "\"");
}
response.Write(">" + Message + "</ServiceException>\n");
response.Write("</ServiceExceptionReport>");
response.End();
}
/// <summary>
/// Generates a WMS 1.3.0 compliant response based on a <see cref="SharpMap.Map"/> and the current HttpRequest.
/// </summary>
/// <remarks>
/// <para>
/// The Web Map Server implementation in SharpMap requires v1.3.0 compatible clients,
/// and support the basic operations "GetCapabilities" and "GetMap"
/// as required by the WMS v1.3.0 specification. SharpMap does not support the optional
/// GetFeatureInfo operation for querying.
/// </para>
/// <example>
/// Creating a WMS server in ASP.NET is very simple using the classes in the SharpMap.Web.Wms namespace.
/// <code lang="C#">
/// void page_load(object o, EventArgs e)
/// {
/// //Get the path of this page
/// string url = (Request.Url.Query.Length>0?Request.Url.AbsoluteUri.Replace(Request.Url.Query,""):Request.Url.AbsoluteUri);
/// SharpMap.Web.Wms.Capabilities.WmsServiceDescription description =
/// new SharpMap.Web.Wms.Capabilities.WmsServiceDescription("Acme Corp. Map Server", url);
///
/// // The following service descriptions below are not strictly required by the WMS specification.
///
/// // Narrative description and keywords providing additional information
/// description.Abstract = "Map Server maintained by Acme Corporation. Contact: [email protected]. High-quality maps showing roadrunner nests and possible ambush locations.";
/// description.Keywords.Add("bird");
/// description.Keywords.Add("roadrunner");
/// description.Keywords.Add("ambush");
///
/// //Contact information
/// description.ContactInformation.PersonPrimary.Person = "John Doe";
/// description.ContactInformation.PersonPrimary.Organisation = "Acme Inc";
/// description.ContactInformation.Address.AddressType = "postal";
/// description.ContactInformation.Address.Country = "Neverland";
/// description.ContactInformation.VoiceTelephone = "1-800-WE DO MAPS";
/// //Impose WMS constraints
/// description.MaxWidth = 1000; //Set image request size width
/// description.MaxHeight = 500; //Set image request size height
///
/// //Call method that sets up the map
/// //We just add a dummy-size, since the wms requests will set the image-size
/// SharpMap.Map myMap = MapHelper.InitializeMap(new System.Drawing.Size(1,1));
///
/// //Parse the request and create a response
/// SharpMap.Web.Wms.WmsServer.ParseQueryString(myMap,description);
/// }
/// </code>
/// </example>
/// </remarks>
/// <param name="map">Map to serve on WMS</param>
/// <param name="description">Description of map service</param>
/// <param name="context">The context the <see cref="WmsServer"/> is running in.</param>
public static void ParseQueryString(Map map, Capabilities.WmsServiceDescription description, IContext context)
{
const StringComparison @case = StringComparison.InvariantCultureIgnoreCase;
IContextRequest request = context.Request;
IContextResponse response = context.Response;
try
{
if (PixelSensitivity < 0)
{
PixelSensitivity = 1;
}
if (map == null)
{
throw new WmsArgumentException("Map for WMS is null");
}
if (map.Layers.Count == 0)
{
throw new WmsArgumentException("Map doesn't contain any layers for WMS service");
}
string req = request.GetParam("REQUEST");
if (req == null)
{
throw new WmsParameterNotSpecifiedException("REQUEST");
}
IHandler handler;
if (String.Equals(req, "GetCapabilities", @case))
{
handler = new GetCapabilities(description);
}
else if (String.Equals(req, "GetFeatureInfo", @case))
{
// use text/plain as default handler
// let the default handler validate params
string format = request.GetParam("INFO_FORMAT") ?? String.Empty;
GetFeatureInfoParams @params = new GetFeatureInfoParams(PixelSensitivity,
IntersectDelegate, FeatureInfoResponseEncoding);
if (String.Equals(format, "text/json", @case))
{
handler = new GetFeatureInfoJson(description, @params);
}
else if (String.Equals(format, "text/html", @case))
{
handler = new GetFeatureInfoHtml(description, @params);
}
else
{
handler = new GetFeatureInfoPlain(description, @params);
}
}
else if (String.Equals(req, "GetMap", @case))
{
handler = new GetMap(description);
}
else
{
string s = String.Format("Invalid request: {0}", req);
throw new WmsOperationNotSupportedException(s);
}
IHandlerResponse result = handler.Handle(map, request);
result.WriteToContextAndFlush(response);
}
catch (WmsExceptionBase ex)
{
ex.WriteToContextAndFlush(response);
}
}
