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storage.go
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storage.go
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// Copyright (c) 2021 BitMaelum Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
package pow
import (
"time"
)
// ProofOfWork is the structure that keeps information about proof-of-work done for incoming messages. It connects
// the proof-of-work with a message ID which can be used for uploading.
type ProofOfWork struct {
Challenge string `json:"challenge"`
Bits int `json:"bits"`
Proof uint64 `json:"proof"`
Expires time.Time `json:"expires"`
MsgID string `json:"msg_id"`
Valid bool `json:"valid"`
}
// Storable interface is the main interface to store and retrieve proof-of-work
type Storable interface {
// Retrieve retrieves the given challenge from the storage and returns its proof-of-work info
Retrieve(challenge string) (*ProofOfWork, error)
// Store stores the given proof of work in the storage
Store(pow *ProofOfWork) error
// Remove removes the given challenge from the storage
Remove(challenge string) error
}