mirror of
https://codeberg.org/forgejo/forgejo
synced 2024-11-25 19:26:09 +01:00
fcb535c5c3
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.
111 lines
2.7 KiB
Go
111 lines
2.7 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
|
|
// 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 git
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/mcuadros/go-version"
|
|
)
|
|
|
|
func (repo *Repository) getTree(id SHA1) (*Tree, error) {
|
|
gogitTree, err := repo.gogitRepo.TreeObject(id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
tree := NewTree(repo, id)
|
|
tree.gogitTree = gogitTree
|
|
return tree, nil
|
|
}
|
|
|
|
// GetTree find the tree object in the repository.
|
|
func (repo *Repository) GetTree(idStr string) (*Tree, error) {
|
|
if len(idStr) != 40 {
|
|
res, err := NewCommand("rev-parse", "--verify", idStr).RunInDir(repo.Path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(res) > 0 {
|
|
idStr = res[:len(res)-1]
|
|
}
|
|
}
|
|
id, err := NewIDFromString(idStr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
resolvedID := id
|
|
commitObject, err := repo.gogitRepo.CommitObject(id)
|
|
if err == nil {
|
|
id = SHA1(commitObject.TreeHash)
|
|
}
|
|
treeObject, err := repo.getTree(id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
treeObject.ResolvedID = resolvedID
|
|
return treeObject, nil
|
|
}
|
|
|
|
// CommitTreeOpts represents the possible options to CommitTree
|
|
type CommitTreeOpts struct {
|
|
Parents []string
|
|
Message string
|
|
KeyID string
|
|
NoGPGSign bool
|
|
AlwaysSign bool
|
|
}
|
|
|
|
// CommitTree creates a commit from a given tree id for the user with provided message
|
|
func (repo *Repository) CommitTree(sig *Signature, tree *Tree, opts CommitTreeOpts) (SHA1, error) {
|
|
binVersion, err := BinVersion()
|
|
if err != nil {
|
|
return SHA1{}, err
|
|
}
|
|
|
|
commitTimeStr := time.Now().Format(time.RFC3339)
|
|
|
|
// Because this may call hooks we should pass in the environment
|
|
env := append(os.Environ(),
|
|
"GIT_AUTHOR_NAME="+sig.Name,
|
|
"GIT_AUTHOR_EMAIL="+sig.Email,
|
|
"GIT_AUTHOR_DATE="+commitTimeStr,
|
|
"GIT_COMMITTER_NAME="+sig.Name,
|
|
"GIT_COMMITTER_EMAIL="+sig.Email,
|
|
"GIT_COMMITTER_DATE="+commitTimeStr,
|
|
)
|
|
cmd := NewCommand("commit-tree", tree.ID.String())
|
|
|
|
for _, parent := range opts.Parents {
|
|
cmd.AddArguments("-p", parent)
|
|
}
|
|
|
|
messageBytes := new(bytes.Buffer)
|
|
_, _ = messageBytes.WriteString(opts.Message)
|
|
_, _ = messageBytes.WriteString("\n")
|
|
|
|
if version.Compare(binVersion, "1.7.9", ">=") && (opts.KeyID != "" || opts.AlwaysSign) {
|
|
cmd.AddArguments(fmt.Sprintf("-S%s", opts.KeyID))
|
|
}
|
|
|
|
if version.Compare(binVersion, "2.0.0", ">=") && opts.NoGPGSign {
|
|
cmd.AddArguments("--no-gpg-sign")
|
|
}
|
|
|
|
stdout := new(bytes.Buffer)
|
|
stderr := new(bytes.Buffer)
|
|
err = cmd.RunInDirTimeoutEnvFullPipeline(env, -1, repo.Path, stdout, stderr, messageBytes)
|
|
|
|
if err != nil {
|
|
return SHA1{}, concatenateError(err, stderr.String())
|
|
}
|
|
return NewIDFromString(strings.TrimSpace(stdout.String()))
|
|
}
|