func registerMFA(c *gobot.Context) {
log.Debugf("registering mfa")
c.Respond(fmt.Sprintf("registering a %s mfa", c.Match(1)))
data := make([]byte, 10)
if n, err := rand.Read(data); err != nil {
c.Fail(err)
return
} else if n != len(data) {
c.Fail(fmt.Errorf("read %d random bytes, wanted %d", n, len(data)))
return
}
secret := base32.StdEncoding.EncodeToString(data)
saveOtp(c.User, secret)
code, err := qr.Encode("otpauth://totp/Gobot?secret="+secret, qr.Q)
if err != nil {
c.Fail(err)
return
}
c.Upload(gobot.Attachment{
Title: "QR Code",
Filename: "QR.png",
Content: bytes.NewReader(code.PNG()),
ContentType: "image/png",
})
}
