42 lines
748 B
Go
42 lines
748 B
Go
package tokens
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import (
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"github.com/patrickmn/go-cache"
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"sync"
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"time"
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)
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type TokenStore struct {
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cache *cache.Cache
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mutex *sync.Mutex
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}
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var _tokens *TokenStore
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// Returns the global unique token store cache. This is used to validate
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// one time token usage by storing any received tokens in a local memory
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// cache until they are ready to expire.
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func getTokenStore() *TokenStore {
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if _tokens == nil {
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_tokens = &TokenStore{
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cache: cache.New(time.Minute*60, time.Minute*5),
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mutex: &sync.Mutex{},
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}
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}
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return _tokens
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}
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func (t *TokenStore) IsValidToken(token string) bool {
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t.mutex.Lock()
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defer t.mutex.Unlock()
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_, exists := t.cache.Get(token)
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if !exists {
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t.cache.Add(token, "", time.Minute*60)
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}
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return !exists
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}
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