64 lines
1.7 KiB
Go
64 lines
1.7 KiB
Go
package model
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import (
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"image"
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"net/url"
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"strconv"
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"time"
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"github.com/pquerna/otp"
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)
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// TOTPConfiguration represents a users TOTP configuration row in the database.
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type TOTPConfiguration struct {
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ID int `db:"id" json:"-"`
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CreatedAt time.Time `db:"created_at" json:"-"`
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LastUsedAt *time.Time `db:"last_used_at" json:"-"`
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Username string `db:"username" json:"-"`
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Issuer string `db:"issuer" json:"-"`
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Algorithm string `db:"algorithm" json:"-"`
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Digits uint `db:"digits" json:"digits"`
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Period uint `db:"period" json:"period"`
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Secret []byte `db:"secret" json:"-"`
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}
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// URI shows the configuration in the URI representation.
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func (c *TOTPConfiguration) URI() (uri string) {
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v := url.Values{}
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v.Set("secret", string(c.Secret))
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v.Set("issuer", c.Issuer)
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v.Set("period", strconv.FormatUint(uint64(c.Period), 10))
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v.Set("algorithm", c.Algorithm)
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v.Set("digits", strconv.Itoa(int(c.Digits)))
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u := url.URL{
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Scheme: "otpauth",
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Host: "totp",
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Path: "/" + c.Issuer + ":" + c.Username,
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RawQuery: v.Encode(),
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}
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return u.String()
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}
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// UpdateSignInInfo adjusts the values of the TOTPConfiguration after a sign in.
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func (c *TOTPConfiguration) UpdateSignInInfo(now time.Time) {
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c.LastUsedAt = &now
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}
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// Key returns the *otp.Key using TOTPConfiguration.URI with otp.NewKeyFromURL.
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func (c *TOTPConfiguration) Key() (key *otp.Key, err error) {
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return otp.NewKeyFromURL(c.URI())
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}
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// Image returns the image.Image of the TOTPConfiguration using the Image func from the return of TOTPConfiguration.Key.
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func (c *TOTPConfiguration) Image(width, height int) (img image.Image, err error) {
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var key *otp.Key
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if key, err = c.Key(); err != nil {
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return nil, err
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}
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return key.Image(width, height)
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}
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