ali_72
دوشنبه 12 مرداد 1394, 14:29 عصر
سلام
وقتی گزارش سایت را از سایت gtmetrix.com میگیرم به 3 مورد در مورد captcha من حساسه
چطوز میتونم این سه مورد رو برطرف کنم؟
133879
کد کنترلر captcha:
public virtual ActionResult CaptchaImage(string prefix, bool noisy = true) {
var rand = new Random((int)DateTime.Now.Ticks);
//generate new question
int a = rand.Next(10, 99);
int b = rand.Next(0, 9);
var captcha = string.Format("{0} + {1} = ?", a, b);
//store answer
Session["Captcha" + prefix] = a + b;
//image stream
FileContentResult img = null;
using (var mem = new MemoryStream())
using (var bmp = new Bitmap(130, 30))
using (var gfx = Graphics.FromImage((Image)bmp))
{
gfx.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
gfx.SmoothingMode = SmoothingMode.AntiAlias;
gfx.FillRectangle(Brushes.White, new Rectangle(0, 0, bmp.Width, bmp.Height));
//add noise
if (noisy)
{
int i, r, x, y;
var pen = new Pen(Color.Yellow);
for (i = 1; i < 10; i++)
{
pen.Color = Color.FromArgb(
(rand.Next(0, 255)),
(rand.Next(0, 255)),
(rand.Next(0, 255)));
r = rand.Next(0, (130 / 3));
x = rand.Next(0, 130);
y = rand.Next(0, 30);
gfx.DrawEllipse(pen, x - r, y - r, r, r);
}
}
//add question
gfx.DrawString(captcha, new Font("Tahoma", 15), Brushes.Gray, 2, 3);
//render as Jpeg
bmp.Save(mem, System.Drawing.Imaging.ImageFormat.Jpeg);
img = this.File(mem.GetBuffer(), "image/Jpeg");
}
return img;
}
وقتی گزارش سایت را از سایت gtmetrix.com میگیرم به 3 مورد در مورد captcha من حساسه
چطوز میتونم این سه مورد رو برطرف کنم؟
133879
کد کنترلر captcha:
public virtual ActionResult CaptchaImage(string prefix, bool noisy = true) {
var rand = new Random((int)DateTime.Now.Ticks);
//generate new question
int a = rand.Next(10, 99);
int b = rand.Next(0, 9);
var captcha = string.Format("{0} + {1} = ?", a, b);
//store answer
Session["Captcha" + prefix] = a + b;
//image stream
FileContentResult img = null;
using (var mem = new MemoryStream())
using (var bmp = new Bitmap(130, 30))
using (var gfx = Graphics.FromImage((Image)bmp))
{
gfx.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
gfx.SmoothingMode = SmoothingMode.AntiAlias;
gfx.FillRectangle(Brushes.White, new Rectangle(0, 0, bmp.Width, bmp.Height));
//add noise
if (noisy)
{
int i, r, x, y;
var pen = new Pen(Color.Yellow);
for (i = 1; i < 10; i++)
{
pen.Color = Color.FromArgb(
(rand.Next(0, 255)),
(rand.Next(0, 255)),
(rand.Next(0, 255)));
r = rand.Next(0, (130 / 3));
x = rand.Next(0, 130);
y = rand.Next(0, 30);
gfx.DrawEllipse(pen, x - r, y - r, r, r);
}
}
//add question
gfx.DrawString(captcha, new Font("Tahoma", 15), Brushes.Gray, 2, 3);
//render as Jpeg
bmp.Save(mem, System.Drawing.Imaging.ImageFormat.Jpeg);
img = this.File(mem.GetBuffer(), "image/Jpeg");
}
return img;
}