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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package asymkey
import (
"context"
"strconv"
"time"
"code.gitea.io/gitea/models/db"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/log"
)
// __________________ ________ ____ __.
// / _____/\______ \/ _____/ | |/ _|____ ___.__.
// / \ ___ | ___/ \ ___ | <_/ __ < | |
// \ \_\ \| | \ \_\ \ | | \ ___/\___ |
// \______ /|____| \______ / |____|__ \___ > ____|
// \/ \/ \/ \/\/
// ____ ____ .__ _____
// \ \ / /___________|__|/ ____\__.__.
// \ Y // __ \_ __ \ \ __< | |
// \ /\ ___/| | \/ || | \___ |
// \___/ \___ >__| |__||__| / ____|
// \/ \/
// This file provides functions relating verifying gpg keys
// VerifyGPGKey marks a GPG key as verified
func VerifyGPGKey(ctx context.Context, ownerID int64, keyID, token, signature string) (string, error) {
ctx, committer, err := db.TxContext(ctx)
if err != nil {
return "", err
}
defer committer.Close()
key := new(GPGKey)
has, err := db.GetEngine(ctx).Where("owner_id = ? AND key_id = ?", ownerID, keyID).Get(key)
if err != nil {
return "", err
} else if !has {
return "", ErrGPGKeyNotExist{}
}
if err := key.LoadSubKeys(ctx); err != nil {
return "", err
}
sig, err := extractSignature(signature)
if err != nil {
return "", ErrGPGInvalidTokenSignature{
ID: key.KeyID,
Wrapped: err,
}
}
signer, err := hashAndVerifyWithSubKeys(sig, token, key)
if err != nil {
return "", ErrGPGInvalidTokenSignature{
ID: key.KeyID,
Wrapped: err,
}
}
if signer == nil {
signer, err = hashAndVerifyWithSubKeys(sig, token+"\n", key)
if err != nil {
return "", ErrGPGInvalidTokenSignature{
ID: key.KeyID,
Wrapped: err,
}
}
}
if signer == nil {
signer, err = hashAndVerifyWithSubKeys(sig, token+"\n\n", key)
if err != nil {
return "", ErrGPGInvalidTokenSignature{
ID: key.KeyID,
Wrapped: err,
}
}
}
if signer == nil {
log.Error("Unable to validate token signature. Error: %v", err)
return "", ErrGPGInvalidTokenSignature{
ID: key.KeyID,
}
}
if signer.PrimaryKeyID != key.KeyID && signer.KeyID != key.KeyID {
return "", ErrGPGKeyNotExist{}
}
key.Verified = true
if _, err := db.GetEngine(ctx).ID(key.ID).SetExpr("verified", true).Update(new(GPGKey)); err != nil {
return "", err
}
if err := committer.Commit(); err != nil {
return "", err
}
return key.KeyID, nil
}
// VerificationToken returns token for the user that will be valid in minutes (time)
func VerificationToken(user *user_model.User, minutes int) string {
return base.EncodeSha256(
time.Now().Truncate(1*time.Minute).Add(time.Duration(minutes)*time.Minute).Format(
time.RFC1123Z) + ":" +
user.CreatedUnix.Format(time.RFC1123Z) + ":" +
user.Name + ":" +
user.Email + ":" +
strconv.FormatInt(user.ID, 10))
}
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