public void ProcessRequest(HttpContext context) {
if(context == null)
throw new ArgumentNullException("context");
var encstr = context.Request["encstr"];
//string encimage = context.Request["encimage"];
//string encanchor = context.Request["encanchor"];
if(encstr != null) {
// See if client has a cached version of the image
var ifModifiedSince = context.Request.Headers.Get("If-Modified-Since");
// If so, always let the client use the cached version cause this image shall not change ever.
if(ifModifiedSince != null) {
context.Response.StatusCode = 304;
context.Response.End();
}
using(var image = new EmailImage()) {
image.Email = Encoding.UTF8.GetString(Convert.FromBase64String(encstr));
image.RenderImage(context.Response.OutputStream); //Render image to output stream
}
context.Response.ContentType = "image/gif";
context.Response.StatusCode = 200;
context.Response.Cache.SetLastModified(DateTime.Now);
context.Response.Cache.SetCacheability(HttpCacheability.Public);
context.Response.Cache.SetValidUntilExpires(true);
context.Response.Cache.VaryByParams["*"] = true;
} else {
context.Response.StatusCode = 404;
}
}
public void ProcessRequest(HttpContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
var encstr = context.Request["encstr"];
//string encimage = context.Request["encimage"];
//string encanchor = context.Request["encanchor"];
if (encstr != null)
{
// See if client has a cached version of the image
var ifModifiedSince = context.Request.Headers.Get("If-Modified-Since");
// If so, always let the client use the cached version cause this image shall not change ever.
if (ifModifiedSince != null)
{
context.Response.StatusCode = 304;
context.Response.End();
}
using (var image = new EmailImage()) {
image.Email = Encoding.UTF8.GetString(Convert.FromBase64String(encstr));
image.RenderImage(context.Response.OutputStream); //Render image to output stream
}
context.Response.ContentType = "image/gif";
context.Response.StatusCode = 200;
context.Response.Cache.SetLastModified(DateTime.Now);
context.Response.Cache.SetCacheability(HttpCacheability.Public);
context.Response.Cache.SetValidUntilExpires(true);
context.Response.Cache.VaryByParams["*"] = true;
}
else
{
context.Response.StatusCode = 404;
}
}
