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forgejo-runner/act/artifactcache/mac.go
Earl Warren ec99579451
chore: to allow the runner to be imported, v9 needs to be in the go module (#777)
It will be imported by Forgejo.

<!--start release-notes-assistant-->
<!--URL:https://code.forgejo.org/forgejo/runner-->
- other
  - [PR](https://code.forgejo.org/forgejo/runner/pulls/777): <!--number 777 --><!--line 0 --><!--description Y2hvcmU6IHRvIGFsbG93IHRoZSBydW5uZXIgdG8gYmUgaW1wb3J0ZWQsIHY5IG5lZWRzIHRvIGJlIGluIHRoZSBnbyBtb2R1bGU=-->chore: to allow the runner to be imported, v9 needs to be in the go module<!--description-->
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Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/777
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>
2025-07-31 10:35:11 +00:00

51 lines
1.2 KiB
Go

// Copyright 2024 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package artifactcache
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"errors"
"strconv"
"time"
"code.forgejo.org/forgejo/runner/v9/act/cacheproxy"
)
var ErrValidation = errors.New("validation error")
func (h *Handler) validateMac(rundata cacheproxy.RunData) (string, error) {
// TODO: allow configurable max age
if !validateAge(rundata.Timestamp) {
return "", ErrValidation
}
expectedMAC := computeMac(h.secret, rundata.RepositoryFullName, rundata.RunNumber, rundata.Timestamp)
if hmac.Equal([]byte(expectedMAC), []byte(rundata.RepositoryMAC)) {
return rundata.RepositoryFullName, nil
}
return "", ErrValidation
}
func validateAge(ts string) bool {
tsInt, err := strconv.ParseInt(ts, 10, 64)
if err != nil {
return false
}
if tsInt > time.Now().Unix() {
return false
}
return true
}
func computeMac(secret, repo, run, ts string) string {
mac := hmac.New(sha256.New, []byte(secret))
mac.Write([]byte(repo))
mac.Write([]byte(">"))
mac.Write([]byte(run))
mac.Write([]byte(">"))
mac.Write([]byte(ts))
return hex.EncodeToString(mac.Sum(nil))
}