public void ProcessRequest(HttpContext context)
{
try
{
Location location = new Location() { Point = GeoRssPoint.Parse(context.Request.Form["lat"], context.Request.Form["lng"]) };
if (FireEagle.UpdateLocation(context, location, new Uri(context.Request.Url, context.Request.ApplicationPath)))
{
AjaxHelper.SendOk(context);
}
else
AjaxHelper.SendError(context, "Unable to update location");
}
catch (AuthorizationRequiredException authex)
{
AjaxHelper.SendAuthorizationRequired(context, authex);
}
catch (ThreadAbortException)
{
throw;
}
catch (Exception ex)
{
AjaxHelper.SendError(context, "Unexpected error: " + ex.Message);
}
}
public static void SendLocation(HttpContext context, Location location)
{
if (context == null)
throw new ArgumentNullException("context");
context.Response.Write(AjaxHelper.GetLocationJsonObject(location));
context.Response.End();
}
public static string GetLocationJsonObject(Location location)
{
if (location == null)
throw new ArgumentNullException("location");
var response = new StringBuilder();
response.Append("{ ").AppendLine();
response.Append(@" ""location"":").AppendLine();
response.Append(@" {").AppendLine();
if (location.Point != null)
{
response.Append(@" ""point"":").AppendLine();
response.Append(@" {").AppendLine();
response.Append(@" ""latitude"": ").Append(location.Point.Latitude).Append(",").AppendLine();
response.Append(@" ""longitude"": ").Append(location.Point.Longitude).AppendLine();
response.Append(@" },").AppendLine();
}
if (location.BoundingBox != null)
{
response.Append(@" ""boundingbox"":").AppendLine();
response.Append(@" {").AppendLine();
response.Append(@" ""southwest"": ").AppendLine();
response.Append(@" {").AppendLine();
response.Append(@" ""latitude"": ").Append(location.BoundingBox.Southwest.Latitude).Append(",").AppendLine();
response.Append(@" ""longitude"": ").Append(location.BoundingBox.Southwest.Longitude).AppendLine();
response.Append(@" },").AppendLine();
response.Append(@" ""northeast"": ").AppendLine();
response.Append(@" {").AppendLine();
response.Append(@" ""latitude"": ").Append(location.BoundingBox.Northeast.Latitude).Append(",").AppendLine();
response.Append(@" ""longitude"": ").Append(location.BoundingBox.Northeast.Longitude).AppendLine();
response.Append(@" },").AppendLine();
response.Append(@" },").AppendLine();
}
response.Append(@" ""name"": """).Append(JsonEscape(location.Name)).Append(@"""").AppendLine();
response.Append(@" }").AppendLine();
response.Append(@"}").AppendLine();
return response.ToString();
}
public static bool UpdateLocation(HttpContext context, Location location, Uri callback)
{
if (context == null)
throw new ArgumentNullException("context");
if (location == null)
throw new ArgumentNullException("location");
if (callback == null)
throw new ArgumentNullException("callback");
// Update the user's location
var request = OAuthRequest.Create(
new EndPoint("https://fireeagle.yahooapis.com/api/0.1/update", "POST"),
FireEagle.OAuthService,
callback,
HttpContext.Current.Session.SessionID);
request.VerificationHandler = AspNetOAuthRequest.HandleVerification;
// Send the location latitude and longitude with the request
OAuthResponse response = request.GetResource(
new NameValueCollection()
{
{ "lat", location.Point.Latitude.ToString(CultureInfo.InvariantCulture) },
{ "lon", location.Point.Longitude.ToString(CultureInfo.InvariantCulture) }
});
if (!response.HasProtectedResource)
throw new AuthorizationRequiredException()
{
AuthorizationUri = FireEagle.OAuthService.BuildAuthorizationUrl(response.Token)
};
// Store the access token
context.Session["access_token"] = response.Token;
// Load the response XML
XmlDocument responseXml = new XmlDocument();
responseXml.Load(response.ProtectedResource.GetResponseStream());
// Check the response status
return responseXml.SelectSingleNode("rsp/@stat").Value == "ok";
}
