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forgejo/modules/repofiles/verification.go
zeripath fcb535c5c3
Sign merges, CRUD, Wiki and Repository initialisation with gpg key (#7631)
This PR fixes #7598 by providing a configurable way of signing commits across the Gitea instance. Per repository configurability and import/generation of trusted secure keys is not provided by this PR - from a security PoV that's probably impossible to do properly. Similarly web-signing, that is asking the user to sign something, is not implemented - this could be done at a later stage however.

## Features
- [x] If commit.gpgsign is set in .gitconfig sign commits and files created through repofiles. (merges should already have been signed.)
- [x] Verify commits signed with the default gpg as valid
- [x] Signer, Committer and Author can all be different
    - [x] Allow signer to be arbitrarily different - We still require the key to have an activated email on Gitea. A more complete implementation would be to use a keyserver and mark external-or-unactivated with an "unknown" trust level icon.
- [x] Add a signing-key.gpg endpoint to get the default gpg pub key if available
    - Rather than add a fake web-flow user I've added this as an endpoint on /api/v1/signing-key.gpg
    - [x] Try to match the default key with a user on gitea - this is done at verification time
- [x] Make things configurable?
    - app.ini configuration done
    - [x] when checking commits are signed need to check if they're actually verifiable too
- [x] Add documentation

I have decided that adjusting the docker to create a default gpg key is not the correct thing to do and therefore have not implemented this.
2019-10-16 14:42:42 +01:00

33 lines
1.1 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repofiles
import (
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/structs"
)
// GetPayloadCommitVerification returns the verification information of a commit
func GetPayloadCommitVerification(commit *git.Commit) *structs.PayloadCommitVerification {
verification := &structs.PayloadCommitVerification{}
commitVerification := models.ParseCommitWithSignature(commit)
if commit.Signature != nil {
verification.Signature = commit.Signature.Signature
verification.Payload = commit.Signature.Payload
}
if commitVerification.SigningUser != nil {
verification.Signer = &structs.PayloadUser{
Name: commitVerification.SigningUser.Name,
Email: commitVerification.SigningUser.Email,
}
}
verification.Verified = commitVerification.Verified
verification.Reason = commitVerification.Reason
if verification.Reason == "" && !verification.Verified {
verification.Reason = "gpg.error.not_signed_commit"
}
return verification
}