mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-27 09:54:15 -05:00
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.
252 lines
10 KiB
Go
252 lines
10 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 integrations
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"net/url"
|
|
"os"
|
|
"path/filepath"
|
|
"testing"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
"code.gitea.io/gitea/modules/process"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
api "code.gitea.io/gitea/modules/structs"
|
|
"github.com/stretchr/testify/assert"
|
|
"golang.org/x/crypto/openpgp"
|
|
"golang.org/x/crypto/openpgp/armor"
|
|
)
|
|
|
|
func TestGPGGit(t *testing.T) {
|
|
onGiteaRun(t, testGPGGit)
|
|
}
|
|
|
|
func testGPGGit(t *testing.T, u *url.URL) {
|
|
username := "user2"
|
|
baseAPITestContext := NewAPITestContext(t, username, "repo1")
|
|
|
|
u.Path = baseAPITestContext.GitPath()
|
|
|
|
// OK Set a new GPG home
|
|
tmpDir, err := ioutil.TempDir("", "temp-gpg")
|
|
assert.NoError(t, err)
|
|
defer os.RemoveAll(tmpDir)
|
|
|
|
err = os.Chmod(tmpDir, 0700)
|
|
assert.NoError(t, err)
|
|
|
|
oldGNUPGHome := os.Getenv("GNUPGHOME")
|
|
err = os.Setenv("GNUPGHOME", tmpDir)
|
|
assert.NoError(t, err)
|
|
defer os.Setenv("GNUPGHOME", oldGNUPGHome)
|
|
|
|
// Need to create a root key
|
|
rootKeyPair, err := createGPGKey(tmpDir, "gitea", "gitea@fake.local")
|
|
assert.NoError(t, err)
|
|
|
|
rootKeyID := rootKeyPair.PrimaryKey.KeyIdShortString()
|
|
|
|
oldKeyID := setting.Repository.Signing.SigningKey
|
|
oldName := setting.Repository.Signing.SigningName
|
|
oldEmail := setting.Repository.Signing.SigningEmail
|
|
defer func() {
|
|
setting.Repository.Signing.SigningKey = oldKeyID
|
|
setting.Repository.Signing.SigningName = oldName
|
|
setting.Repository.Signing.SigningEmail = oldEmail
|
|
}()
|
|
|
|
setting.Repository.Signing.SigningKey = rootKeyID
|
|
setting.Repository.Signing.SigningName = "gitea"
|
|
setting.Repository.Signing.SigningEmail = "gitea@fake.local"
|
|
user := models.AssertExistsAndLoadBean(t, &models.User{Name: username}).(*models.User)
|
|
|
|
t.Run("Unsigned-Initial", func(t *testing.T) {
|
|
PrintCurrentTest(t)
|
|
setting.Repository.Signing.InitialCommit = []string{"never"}
|
|
testCtx := NewAPITestContext(t, username, "initial-unsigned")
|
|
t.Run("CreateRepository", doAPICreateRepository(testCtx, false))
|
|
t.Run("CheckMasterBranchUnsigned", doAPIGetBranch(testCtx, "master", func(t *testing.T, branch api.Branch) {
|
|
assert.NotNil(t, branch.Commit)
|
|
assert.NotNil(t, branch.Commit.Verification)
|
|
assert.False(t, branch.Commit.Verification.Verified)
|
|
assert.Empty(t, branch.Commit.Verification.Signature)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"never"}
|
|
t.Run("CreateCRUDFile-Never", crudActionCreateFile(
|
|
t, testCtx, user, "master", "never", "unsigned-never.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.False(t, response.Verification.Verified)
|
|
}))
|
|
t.Run("CreateCRUDFile-Never", crudActionCreateFile(
|
|
t, testCtx, user, "never", "never2", "unsigned-never2.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.False(t, response.Verification.Verified)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"parentsigned"}
|
|
t.Run("CreateCRUDFile-ParentSigned", crudActionCreateFile(
|
|
t, testCtx, user, "master", "parentsigned", "signed-parent.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.False(t, response.Verification.Verified)
|
|
}))
|
|
t.Run("CreateCRUDFile-ParentSigned", crudActionCreateFile(
|
|
t, testCtx, user, "parentsigned", "parentsigned2", "signed-parent2.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.False(t, response.Verification.Verified)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"never"}
|
|
t.Run("CreateCRUDFile-Never", crudActionCreateFile(
|
|
t, testCtx, user, "parentsigned", "parentsigned-never", "unsigned-never2.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.False(t, response.Verification.Verified)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"always"}
|
|
t.Run("CreateCRUDFile-Always", crudActionCreateFile(
|
|
t, testCtx, user, "master", "always", "signed-always.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.True(t, response.Verification.Verified)
|
|
assert.Equal(t, "gitea@fake.local", response.Verification.Signer.Email)
|
|
}))
|
|
t.Run("CreateCRUDFile-ParentSigned-always", crudActionCreateFile(
|
|
t, testCtx, user, "parentsigned", "parentsigned-always", "signed-parent2.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.True(t, response.Verification.Verified)
|
|
assert.Equal(t, "gitea@fake.local", response.Verification.Signer.Email)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"parentsigned"}
|
|
t.Run("CreateCRUDFile-Always-ParentSigned", crudActionCreateFile(
|
|
t, testCtx, user, "always", "always-parentsigned", "signed-always-parentsigned.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.True(t, response.Verification.Verified)
|
|
assert.Equal(t, "gitea@fake.local", response.Verification.Signer.Email)
|
|
}))
|
|
})
|
|
t.Run("AlwaysSign-Initial", func(t *testing.T) {
|
|
PrintCurrentTest(t)
|
|
setting.Repository.Signing.InitialCommit = []string{"always"}
|
|
testCtx := NewAPITestContext(t, username, "initial-always")
|
|
t.Run("CreateRepository", doAPICreateRepository(testCtx, false))
|
|
t.Run("CheckMasterBranchSigned", doAPIGetBranch(testCtx, "master", func(t *testing.T, branch api.Branch) {
|
|
assert.NotNil(t, branch.Commit)
|
|
assert.NotNil(t, branch.Commit.Verification)
|
|
assert.True(t, branch.Commit.Verification.Verified)
|
|
assert.Equal(t, "gitea@fake.local", branch.Commit.Verification.Signer.Email)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"never"}
|
|
t.Run("CreateCRUDFile-Never", crudActionCreateFile(
|
|
t, testCtx, user, "master", "never", "unsigned-never.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.False(t, response.Verification.Verified)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"parentsigned"}
|
|
t.Run("CreateCRUDFile-ParentSigned", crudActionCreateFile(
|
|
t, testCtx, user, "master", "parentsigned", "signed-parent.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.True(t, response.Verification.Verified)
|
|
assert.Equal(t, "gitea@fake.local", response.Verification.Signer.Email)
|
|
}))
|
|
setting.Repository.Signing.CRUDActions = []string{"always"}
|
|
t.Run("CreateCRUDFile-Always", crudActionCreateFile(
|
|
t, testCtx, user, "master", "always", "signed-always.txt", func(t *testing.T, response api.FileResponse) {
|
|
assert.True(t, response.Verification.Verified)
|
|
assert.Equal(t, "gitea@fake.local", response.Verification.Signer.Email)
|
|
}))
|
|
|
|
})
|
|
t.Run("UnsignedMerging", func(t *testing.T) {
|
|
PrintCurrentTest(t)
|
|
testCtx := NewAPITestContext(t, username, "initial-unsigned")
|
|
var pr api.PullRequest
|
|
var err error
|
|
t.Run("CreatePullRequest", func(t *testing.T) {
|
|
pr, err = doAPICreatePullRequest(testCtx, testCtx.Username, testCtx.Reponame, "master", "never2")(t)
|
|
assert.NoError(t, err)
|
|
})
|
|
setting.Repository.Signing.Merges = []string{"commitssigned"}
|
|
t.Run("MergePR", doAPIMergePullRequest(testCtx, testCtx.Username, testCtx.Reponame, pr.Index))
|
|
t.Run("CheckMasterBranchUnsigned", doAPIGetBranch(testCtx, "master", func(t *testing.T, branch api.Branch) {
|
|
assert.NotNil(t, branch.Commit)
|
|
assert.NotNil(t, branch.Commit.Verification)
|
|
assert.False(t, branch.Commit.Verification.Verified)
|
|
assert.Empty(t, branch.Commit.Verification.Signature)
|
|
}))
|
|
setting.Repository.Signing.Merges = []string{"basesigned"}
|
|
t.Run("CreatePullRequest", func(t *testing.T) {
|
|
pr, err = doAPICreatePullRequest(testCtx, testCtx.Username, testCtx.Reponame, "master", "parentsigned2")(t)
|
|
assert.NoError(t, err)
|
|
})
|
|
t.Run("MergePR", doAPIMergePullRequest(testCtx, testCtx.Username, testCtx.Reponame, pr.Index))
|
|
t.Run("CheckMasterBranchUnsigned", doAPIGetBranch(testCtx, "master", func(t *testing.T, branch api.Branch) {
|
|
assert.NotNil(t, branch.Commit)
|
|
assert.NotNil(t, branch.Commit.Verification)
|
|
assert.False(t, branch.Commit.Verification.Verified)
|
|
assert.Empty(t, branch.Commit.Verification.Signature)
|
|
}))
|
|
setting.Repository.Signing.Merges = []string{"commitssigned"}
|
|
t.Run("CreatePullRequest", func(t *testing.T) {
|
|
pr, err = doAPICreatePullRequest(testCtx, testCtx.Username, testCtx.Reponame, "master", "always-parentsigned")(t)
|
|
assert.NoError(t, err)
|
|
})
|
|
t.Run("MergePR", doAPIMergePullRequest(testCtx, testCtx.Username, testCtx.Reponame, pr.Index))
|
|
t.Run("CheckMasterBranchUnsigned", doAPIGetBranch(testCtx, "master", func(t *testing.T, branch api.Branch) {
|
|
assert.NotNil(t, branch.Commit)
|
|
assert.NotNil(t, branch.Commit.Verification)
|
|
assert.True(t, branch.Commit.Verification.Verified)
|
|
}))
|
|
|
|
})
|
|
}
|
|
|
|
func crudActionCreateFile(t *testing.T, ctx APITestContext, user *models.User, from, to, path string, callback ...func(*testing.T, api.FileResponse)) func(*testing.T) {
|
|
return doAPICreateFile(ctx, path, &api.CreateFileOptions{
|
|
FileOptions: api.FileOptions{
|
|
BranchName: from,
|
|
NewBranchName: to,
|
|
Message: fmt.Sprintf("from:%s to:%s path:%s", from, to, path),
|
|
Author: api.Identity{
|
|
Name: user.FullName,
|
|
Email: user.Email,
|
|
},
|
|
Committer: api.Identity{
|
|
Name: user.FullName,
|
|
Email: user.Email,
|
|
},
|
|
},
|
|
Content: base64.StdEncoding.EncodeToString([]byte("This is new text")),
|
|
}, callback...)
|
|
}
|
|
|
|
func createGPGKey(tmpDir, name, email string) (*openpgp.Entity, error) {
|
|
keyPair, err := openpgp.NewEntity(name, "test", email, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, id := range keyPair.Identities {
|
|
err := id.SelfSignature.SignUserId(id.UserId.Id, keyPair.PrimaryKey, keyPair.PrivateKey, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
keyFile := filepath.Join(tmpDir, "temporary.key")
|
|
keyWriter, err := os.Create(keyFile)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer keyWriter.Close()
|
|
defer os.Remove(keyFile)
|
|
|
|
w, err := armor.Encode(keyWriter, openpgp.PrivateKeyType, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer w.Close()
|
|
|
|
keyPair.SerializePrivate(w, nil)
|
|
if err := w.Close(); err != nil {
|
|
return nil, err
|
|
}
|
|
if err := keyWriter.Close(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if _, _, err := process.GetManager().Exec("gpg --import temporary.key", "gpg", "--import", keyFile); err != nil {
|
|
return nil, err
|
|
}
|
|
return keyPair, nil
|
|
}
|