77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
// Copyright 2019 Drone IO, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package token
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import (
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"context"
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"time"
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"github.com/drone/drone/core"
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"github.com/drone/go-scm/scm"
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"github.com/drone/go-scm/scm/transport/oauth2"
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)
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// expiryDelta determines how earlier a token should be considered
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// expired than its actual expiration time. It is used to avoid late
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// expirations due to client-server time mismatches.
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const expiryDelta = time.Minute
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type renewer struct {
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refresh *oauth2.Refresher
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users core.UserStore
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}
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// Renewer returns a new Renewer.
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func Renewer(refresh *oauth2.Refresher, store core.UserStore) core.Renewer {
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return &renewer{
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refresh: refresh,
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users: store,
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}
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}
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func (r *renewer) Renew(ctx context.Context, user *core.User, force bool) error {
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if r.refresh == nil {
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return nil
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}
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t := &scm.Token{
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Token: user.Token,
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Refresh: user.Refresh,
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Expires: time.Unix(user.Expiry, 0),
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}
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if expired(t) == false && force == false {
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return nil
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}
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err := r.refresh.Refresh(t)
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if err != nil {
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return err
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}
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user.Token = t.Token
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user.Refresh = t.Refresh
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user.Expiry = t.Expires.Unix()
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return r.users.Update(ctx, user)
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}
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// expired reports whether the token is expired.
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func expired(token *scm.Token) bool {
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if len(token.Refresh) == 0 {
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return false
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}
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if token.Expires.IsZero() && len(token.Token) != 0 {
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return false
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}
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return token.Expires.Add(-expiryDelta).
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Before(time.Now())
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}
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