public void ProcessRequest(HttpContext context)
{
var key = Extensions._captchaPrefix + context.Request.QueryString["id"];
var bmCaptcha = CaptchaManager.GenerateCaptchaImage(key);
bmCaptcha.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Png);
context.Response.ContentType = "image/png";
//context.Response.Write("Hello World");
}
public async Task ProcessRequestAsync(HttpContext context)
{
var key = Extensions._captchaPrefix + context.Request.Query["id"];
Stream originalBody = context.Response.Body;
try
{
using (var image = await CaptchaManager.GenerateCaptchaImage(key))
using (var memStream = new MemoryStream())
{
image.Save(memStream, System.Drawing.Imaging.ImageFormat.Png);
context.Response.Body = memStream;
memStream.Position = 0;
await memStream.CopyToAsync(originalBody);
}
}
finally
{
context.Response.Body = originalBody;
}
}
