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41 lines
927 B
41 lines
927 B
package mfa
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import (
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"bytes"
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"encoding/base64"
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"strconv"
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"time"
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"github.com/skip2/go-qrcode"
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"github.com/xlzd/gotp"
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)
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const secretLength = 16
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type Otp struct {
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Secret string `json:"secret"`
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QrImage string `json:"qrImage"`
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}
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func GetOtp(username string) (otp Otp, err error) {
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secret := gotp.RandomSecret(secretLength)
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otp.Secret = secret
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totp := gotp.NewDefaultTOTP(secret)
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uri := totp.ProvisioningUri(username, "1Panel")
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subImg, err := qrcode.Encode(uri, qrcode.Medium, 256)
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dist := make([]byte, 3000)
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base64.StdEncoding.Encode(dist, subImg)
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index := bytes.IndexByte(dist, 0)
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baseImage := dist[0:index]
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otp.QrImage = "data:image/png;base64," + string(baseImage)
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return
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}
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func ValidCode(code string, secret string) bool {
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totp := gotp.NewDefaultTOTP(secret)
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now := time.Now().Unix()
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strInt64 := strconv.FormatInt(now, 10)
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id16, _ := strconv.Atoi(strInt64)
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return totp.Verify(code, int64(id16))
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}
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