mirror of
https://github.com/hanzoai/tasks.git
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Alex ShtinandGitHub
8e8f1b0f7c
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.
## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package checksum
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import (
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"bytes"
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"encoding/binary"
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"errors"
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"fmt"
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"hash/crc32"
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enumsspb "go.temporal.io/server/api/enums/v1"
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persistencespb "go.temporal.io/server/api/persistence/v1"
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)
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// ErrMismatch indicates a checksum verification failure due to
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// a derived checksum not being equal to expected checksum
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var ErrMismatch = errors.New("checksum mismatch error")
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type Marshaler interface {
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Marshal() ([]byte, error)
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}
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// GenerateCRC32 generates an IEEE crc32 checksum on the
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// serilized byte array of the given thrift object. The
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// serialization proto used will be of type thriftRW
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func GenerateCRC32(
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payload Marshaler,
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payloadVersion int32,
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) (*persistencespb.Checksum, error) {
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payloadBytes, err := payload.Marshal()
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if err != nil {
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return nil, err
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}
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crc := crc32.ChecksumIEEE(payloadBytes)
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checksum := make([]byte, 4)
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binary.BigEndian.PutUint32(checksum, crc)
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return &persistencespb.Checksum{
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Value: checksum,
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Version: payloadVersion,
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Flavor: enumsspb.CHECKSUM_FLAVOR_IEEE_CRC32_OVER_PROTO3_BINARY,
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}, nil
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}
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// Verify verifies that the checksum generated from the
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// given thrift object matches the specified expected checksum
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// Return ErrMismatch when checksums mismatch
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func Verify(
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payload Marshaler,
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checksum *persistencespb.Checksum,
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) error {
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if checksum.Flavor != enumsspb.CHECKSUM_FLAVOR_IEEE_CRC32_OVER_PROTO3_BINARY {
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return fmt.Errorf("unknown checksum flavor %v", checksum.Flavor)
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}
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expected, err := GenerateCRC32(payload, checksum.Version)
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if err != nil {
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return err
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}
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if !bytes.Equal(expected.GetValue(), checksum.GetValue()) {
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return ErrMismatch
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}
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return nil
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}
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