71 lines
2.4 KiB
Go
71 lines
2.4 KiB
Go
package user
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import (
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"fmt"
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"net/url"
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"time"
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"github.com/coreos/go-oidc/jose"
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"github.com/coreos/go-oidc/key"
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"github.com/coreos/go-oidc/oidc"
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)
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// NewEmailVerification creates an object which can be sent to a user
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// in serialized form to verify that they control an email address.
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// The clientID is the ID of the registering user. The callback is
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// where a user should land after verifying their email.
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func NewEmailVerification(user User, clientID string, issuer url.URL, callback url.URL, expires time.Duration) EmailVerification {
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claims := oidc.NewClaims(issuer.String(), user.ID, clientID, clock.Now(), clock.Now().Add(expires))
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claims.Add(ClaimEmailVerificationCallback, callback.String())
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claims.Add(ClaimEmailVerificationEmail, user.Email)
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return EmailVerification{claims}
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}
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type EmailVerification struct {
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Claims jose.Claims
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}
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// ParseAndVerifyEmailVerificationToken parses a string into a an
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// EmailVerification, verifies the signature, and ensures that
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// required claims are present. In addition to the usual claims
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// required by the OIDC spec, "aud" and "sub" must be present as well
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// as ClaimEmailVerificationCallback and ClaimEmailVerificationEmail.
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func ParseAndVerifyEmailVerificationToken(token string, issuer url.URL, keys []key.PublicKey) (EmailVerification, error) {
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tokenClaims, err := parseAndVerifyTokenClaims(token, issuer, keys)
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if err != nil {
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return EmailVerification{}, err
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}
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email, ok, err := tokenClaims.Claims.StringClaim(ClaimEmailVerificationEmail)
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if err != nil {
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return EmailVerification{}, err
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}
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if !ok || email == "" {
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return EmailVerification{}, fmt.Errorf("no %q claim", ClaimEmailVerificationEmail)
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}
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cb, ok, err := tokenClaims.Claims.StringClaim(ClaimEmailVerificationCallback)
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if err != nil {
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return EmailVerification{}, err
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}
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if !ok || cb == "" {
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return EmailVerification{}, fmt.Errorf("no %q claim", ClaimEmailVerificationCallback)
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}
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if _, err := url.Parse(cb); err != nil {
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return EmailVerification{}, fmt.Errorf("callback URL not parseable: %v", cb)
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}
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return EmailVerification{tokenClaims.Claims}, nil
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}
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func (e EmailVerification) UserID() string {
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return assertStringClaim(e.Claims, "sub")
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}
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func (e EmailVerification) Email() string {
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return assertStringClaim(e.Claims, ClaimEmailVerificationEmail)
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}
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func (e EmailVerification) Callback() *url.URL {
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return assertURLClaim(e.Claims, ClaimEmailVerificationCallback)
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}
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