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Allow to set protected file patterns that can not be changed under no conditions (#10806)

Co-Authored-By: zeripath <art27@cantab.net>
mj
Lauris BH 3 years ago
committed by GitHub
parent
commit
bbd910ed1b
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
  1. 19
      models/branches.go
  2. 19
      models/error.go
  3. 2
      models/migrations/migrations.go
  4. 22
      models/migrations/v132.go
  5. 1
      modules/auth/repo_form.go
  6. 1
      modules/convert/convert.go
  7. 32
      modules/repofiles/delete.go
  8. 32
      modules/repofiles/update.go
  9. 3
      modules/structs/repo_branch.go
  10. 2
      options/locale/locale_en-US.ini
  11. 5
      routers/api/v1/repo/branch.go
  12. 69
      routers/private/hook.go
  13. 1
      routers/repo/setting_protected_branch.go
  14. 5
      templates/repo/settings/protected_branch.tmpl
  15. 12
      templates/swagger/v1_json.tmpl

19
models/branches.go

@ -7,6 +7,7 @@ package models
import (
"context"
"fmt"
"strings"
"time"
"code.gitea.io/gitea/modules/base"
@ -15,6 +16,7 @@ import (
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"github.com/gobwas/glob"
"github.com/unknwon/com"
)
@ -47,6 +49,7 @@ type ProtectedBranch struct {
BlockOnRejectedReviews bool `xorm:"NOT NULL DEFAULT false"`
DismissStaleApprovals bool `xorm:"NOT NULL DEFAULT false"`
RequireSignedCommits bool `xorm:"NOT NULL DEFAULT false"`
ProtectedFilePatterns string `xorm:"TEXT"`
CreatedUnix timeutil.TimeStamp `xorm:"created"`
UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
@ -190,6 +193,22 @@ func (protectBranch *ProtectedBranch) MergeBlockedByRejectedReview(pr *PullReque
return rejectExist
}
// GetProtectedFilePatterns parses a semicolon separated list of protected file patterns and returns a glob.Glob slice
func (protectBranch *ProtectedBranch) GetProtectedFilePatterns() []glob.Glob {
extarr := make([]glob.Glob, 0, 10)
for _, expr := range strings.Split(strings.ToLower(protectBranch.ProtectedFilePatterns), ";") {
expr = strings.TrimSpace(expr)
if expr != "" {
if g, err := glob.Compile(expr, '.', '/'); err != nil {
log.Info("Invalid glob expresion '%s' (skipped): %v", expr, err)
} else {
extarr = append(extarr, g)
}
}
}
return extarr
}
// GetProtectedBranchByRepoID getting protected branch by repo ID
func GetProtectedBranchByRepoID(repoID int64) ([]*ProtectedBranch, error) {
protectedBranches := make([]*ProtectedBranch, 0)

19
models/error.go

@ -916,6 +916,25 @@ func (err ErrFilePathInvalid) Error() string {
return fmt.Sprintf("path is invalid [path: %s]", err.Path)
}
// ErrFilePathProtected represents a "FilePathProtected" kind of error.
type ErrFilePathProtected struct {
Message string
Path string
}
// IsErrFilePathProtected checks if an error is an ErrFilePathProtected.
func IsErrFilePathProtected(err error) bool {
_, ok := err.(ErrFilePathProtected)
return ok
}
func (err ErrFilePathProtected) Error() string {
if err.Message != "" {
return err.Message
}
return fmt.Sprintf("path is protected and can not be changed [path: %s]", err.Path)
}
// ErrUserDoesNotHaveAccessToRepo represets an error where the user doesn't has access to a given repo.
type ErrUserDoesNotHaveAccessToRepo struct {
UserID int64

2
models/migrations/migrations.go

@ -196,6 +196,8 @@ var migrations = []Migration{
NewMigration("Expand webhooks for more granularity", expandWebhooks),
// v131 -> v132
NewMigration("Add IsSystemWebhook column to webhooks table", addSystemWebhookColumn),
// v132 -> v133
NewMigration("Add Branch Protection Protected Files Column", addBranchProtectionProtectedFilesColumn),
}
// Migrate database to current version

22
models/migrations/v132.go

@ -0,0 +1,22 @@
// Copyright 2020 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 migrations
import (
"fmt"
"xorm.io/xorm"
)
func addBranchProtectionProtectedFilesColumn(x *xorm.Engine) error {
type ProtectedBranch struct {
ProtectedFilePatterns string `xorm:"TEXT"`
}
if err := x.Sync2(new(ProtectedBranch)); err != nil {
return fmt.Errorf("Sync2: %v", err)
}
return nil
}

1
modules/auth/repo_form.go

@ -175,6 +175,7 @@ type ProtectBranchForm struct {
BlockOnRejectedReviews bool
DismissStaleApprovals bool
RequireSignedCommits bool
ProtectedFilePatterns string
}
// Validate validates the fields

1
modules/convert/convert.go

@ -120,6 +120,7 @@ func ToBranchProtection(bp *models.ProtectedBranch) *api.BranchProtection {
BlockOnRejectedReviews: bp.BlockOnRejectedReviews,
DismissStaleApprovals: bp.DismissStaleApprovals,
RequireSignedCommits: bp.RequireSignedCommits,
ProtectedFilePatterns: bp.ProtectedFilePatterns,
Created: bp.CreatedUnix.AsTime(),
Updated: bp.UpdatedUnix.AsTime(),
}

32
modules/repofiles/delete.go

@ -60,21 +60,31 @@ func DeleteRepoFile(repo *models.Repository, doer *models.User, opts *DeleteRepo
if err != nil {
return nil, err
}
if protectedBranch != nil && !protectedBranch.CanUserPush(doer.ID) {
return nil, models.ErrUserCannotCommit{
UserName: doer.LowerName,
}
}
if protectedBranch != nil && protectedBranch.RequireSignedCommits {
_, _, err := repo.SignCRUDAction(doer, repo.RepoPath(), opts.OldBranch)
if err != nil {
if !models.IsErrWontSign(err) {
return nil, err
}
if protectedBranch != nil {
if !protectedBranch.CanUserPush(doer.ID) {
return nil, models.ErrUserCannotCommit{
UserName: doer.LowerName,
}
}
if protectedBranch.RequireSignedCommits {
_, _, err := repo.SignCRUDAction(doer, repo.RepoPath(), opts.OldBranch)
if err != nil {
if !models.IsErrWontSign(err) {
return nil, err
}
return nil, models.ErrUserCannotCommit{
UserName: doer.LowerName,
}
}
}
patterns := protectedBranch.GetProtectedFilePatterns()
for _, pat := range patterns {
if pat.Match(strings.ToLower(opts.TreePath)) {
return nil, models.ErrFilePathProtected{
Path: opts.TreePath,
}
}
}
}
}

32
modules/repofiles/update.go

@ -156,21 +156,31 @@ func CreateOrUpdateRepoFile(repo *models.Repository, doer *models.User, opts *Up
if err != nil {
return nil, err
}
if protectedBranch != nil && !protectedBranch.CanUserPush(doer.ID) {
return nil, models.ErrUserCannotCommit{
UserName: doer.LowerName,
}
}
if protectedBranch != nil && protectedBranch.RequireSignedCommits {
_, _, err := repo.SignCRUDAction(doer, repo.RepoPath(), opts.OldBranch)
if err != nil {
if !models.IsErrWontSign(err) {
return nil, err
}
if protectedBranch != nil {
if !protectedBranch.CanUserPush(doer.ID) {
return nil, models.ErrUserCannotCommit{
UserName: doer.LowerName,
}
}
if protectedBranch.RequireSignedCommits {
_, _, err := repo.SignCRUDAction(doer, repo.RepoPath(), opts.OldBranch)
if err != nil {
if !models.IsErrWontSign(err) {
return nil, err
}
return nil, models.ErrUserCannotCommit{
UserName: doer.LowerName,
}
}
}
patterns := protectedBranch.GetProtectedFilePatterns()
for _, pat := range patterns {
if pat.Match(strings.ToLower(opts.TreePath)) {
return nil, models.ErrFilePathProtected{
Path: opts.TreePath,
}
}
}
}
}

3
modules/structs/repo_branch.go

@ -41,6 +41,7 @@ type BranchProtection struct {
BlockOnRejectedReviews bool `json:"block_on_rejected_reviews"`
DismissStaleApprovals bool `json:"dismiss_stale_approvals"`
RequireSignedCommits bool `json:"require_signed_commits"`
ProtectedFilePatterns string `json:"protected_file_patterns"`
// swagger:strfmt date-time
Created time.Time `json:"created_at"`
// swagger:strfmt date-time
@ -67,6 +68,7 @@ type CreateBranchProtectionOption struct {
BlockOnRejectedReviews bool `json:"block_on_rejected_reviews"`
DismissStaleApprovals bool `json:"dismiss_stale_approvals"`
RequireSignedCommits bool `json:"require_signed_commits"`
ProtectedFilePatterns string `json:"protected_file_patterns"`
}
// EditBranchProtectionOption options for editing a branch protection
@ -88,4 +90,5 @@ type EditBranchProtectionOption struct {
BlockOnRejectedReviews *bool `json:"block_on_rejected_reviews"`
DismissStaleApprovals *bool `json:"dismiss_stale_approvals"`
RequireSignedCommits *bool `json:"require_signed_commits"`
ProtectedFilePatterns *string `json:"protected_file_patterns"`
}

2
options/locale/locale_en-US.ini

@ -1488,6 +1488,8 @@ settings.dismiss_stale_approvals = Dismiss stale approvals
settings.dismiss_stale_approvals_desc = When new commits that change the content of the pull request are pushed to the branch, old approvals will be dismissed.
settings.require_signed_commits = Require Signed Commits
settings.require_signed_commits_desc = Reject pushes to this branch if they are unsigned or unverifiable
settings.protect_protected_file_patterns = Protected file patterns (separated using semicolon ';'):
settings.protect_protected_file_patterns_desc = Protected files that are not allowed to be changed directly even if user has rights to add, edit or delete files in this branch. Multiple patterns can be separated using semicolon (';'). See <a href="https://godoc.org/github.com/gobwas/glob#Compile">github.com/gobwas/glob</a> documentation for pattern syntax. Examples: <code>.drone.yml</code>, <code>/docs/**/*.txt</code>.
settings.add_protected_branch = Enable protection
settings.delete_protected_branch = Disable protection
settings.update_protect_branch_success = Branch protection for branch '%s' has been updated.

5
routers/api/v1/repo/branch.go

@ -339,6 +339,7 @@ func CreateBranchProtection(ctx *context.APIContext, form api.CreateBranchProtec
BlockOnRejectedReviews: form.BlockOnRejectedReviews,
DismissStaleApprovals: form.DismissStaleApprovals,
RequireSignedCommits: form.RequireSignedCommits,
ProtectedFilePatterns: form.ProtectedFilePatterns,
}
err = models.UpdateProtectBranch(ctx.Repo.Repository, protectBranch, models.WhitelistOptions{
@ -470,6 +471,10 @@ func EditBranchProtection(ctx *context.APIContext, form api.EditBranchProtection
protectBranch.RequireSignedCommits = *form.RequireSignedCommits
}
if form.ProtectedFilePatterns != nil {
protectBranch.ProtectedFilePatterns = *form.ProtectedFilePatterns
}
var whitelistUsers []int64
if form.PushWhitelistUsernames != nil {
whitelistUsers, err = models.GetUserIDsByNames(form.PushWhitelistUsernames, false)

69
routers/private/hook.go

@ -22,9 +22,10 @@ import (
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
pull_service "code.gitea.io/gitea/services/pull"
"github.com/go-git/go-git/v5/plumbing"
"gitea.com/macaron/macaron"
"github.com/go-git/go-git/v5/plumbing"
"github.com/gobwas/glob"
)
func verifyCommits(oldCommitID, newCommitID string, repo *git.Repository, env []string) error {
@ -57,6 +58,52 @@ func verifyCommits(oldCommitID, newCommitID string, repo *git.Repository, env []
return err
}
func checkFileProtection(oldCommitID, newCommitID string, patterns []glob.Glob, repo *git.Repository, env []string) error {
stdoutReader, stdoutWriter, err := os.Pipe()
if err != nil {
log.Error("Unable to create os.Pipe for %s", repo.Path)
return err
}
defer func() {
_ = stdoutReader.Close()
_ = stdoutWriter.Close()
}()
err = git.NewCommand("diff", "--name-only", oldCommitID+"..."+newCommitID).
RunInDirTimeoutEnvFullPipelineFunc(env, -1, repo.Path,
stdoutWriter, nil, nil,
func(ctx context.Context, cancel context.CancelFunc) error {
_ = stdoutWriter.Close()
scanner := bufio.NewScanner(stdoutReader)
for scanner.Scan() {
path := strings.TrimSpace(scanner.Text())
if len(path) == 0 {
continue
}
lpath := strings.ToLower(path)
for _, pat := range patterns {
if pat.Match(lpath) {
cancel()
return models.ErrFilePathProtected{
Path: path,
}
}
}
}
if err := scanner.Err(); err != nil {
return err
}
_ = stdoutReader.Close()
return err
})
if err != nil && !models.IsErrFilePathProtected(err) {
log.Error("Unable to check file protection for commits from %s to %s in %s: %v", oldCommitID, newCommitID, repo.Path, err)
}
return err
}
func readAndVerifyCommitsFromShaReader(input io.ReadCloser, repo *git.Repository, env []string) error {
scanner := bufio.NewScanner(input)
for scanner.Scan() {
@ -216,6 +263,26 @@ func HookPreReceive(ctx *macaron.Context, opts private.HookOptions) {
}
}
globs := protectBranch.GetProtectedFilePatterns()
if len(globs) > 0 {
err := checkFileProtection(oldCommitID, newCommitID, globs, gitRepo, env)
if err != nil {
if !models.IsErrFilePathProtected(err) {
log.Error("Unable to check file protection for commits from %s to %s in %-v: %v", oldCommitID, newCommitID, repo, err)
ctx.JSON(http.StatusInternalServerError, map[string]interface{}{
"err": fmt.Sprintf("Unable to check file protection for commits from %s to %s: %v", oldCommitID, newCommitID, err),
})
return
}
protectedFilePath := err.(models.ErrFilePathProtected).Path
log.Warn("Forbidden: Branch: %s in %-v is protected from changing file %s", branchName, repo, protectedFilePath)
ctx.JSON(http.StatusForbidden, map[string]interface{}{
"err": fmt.Sprintf("branch %s is protected from changing file %s", branchName, protectedFilePath),
})
return
}
}
canPush := false
if opts.IsDeployKey {
canPush = protectBranch.CanPush && (!protectBranch.EnableWhitelist || protectBranch.WhitelistDeployKeys)

1
routers/repo/setting_protected_branch.go

@ -247,6 +247,7 @@ func SettingsProtectedBranchPost(ctx *context.Context, f auth.ProtectBranchForm)
protectBranch.BlockOnRejectedReviews = f.BlockOnRejectedReviews
protectBranch.DismissStaleApprovals = f.DismissStaleApprovals
protectBranch.RequireSignedCommits = f.RequireSignedCommits
protectBranch.ProtectedFilePatterns = f.ProtectedFilePatterns
err = models.UpdateProtectBranch(ctx.Repo.Repository, protectBranch, models.WhitelistOptions{
UserIDs: whitelistUsers,

5
templates/repo/settings/protected_branch.tmpl

@ -225,6 +225,11 @@
<p class="help">{{.i18n.Tr "repo.settings.require_signed_commits_desc"}}</p>
</div>
</div>
<div class="field">
<label for="protected_file_patterns">{{.i18n.Tr "repo.settings.protect_protected_file_patterns"}}</label>
<input name="protected_file_patterns" id="protected_file_patterns" type="text" value="{{.Branch.ProtectedFilePatterns}}">
<p class="help">{{.i18n.Tr "repo.settings.protect_protected_file_patterns_desc" | Safe}}</p>
</div>
</div>

12
templates/swagger/v1_json.tmpl

@ -9818,6 +9818,10 @@
},
"x-go-name": "MergeWhitelistUsernames"
},
"protected_file_patterns": {
"type": "string",
"x-go-name": "ProtectedFilePatterns"
},
"push_whitelist_deploy_keys": {
"type": "boolean",
"x-go-name": "PushWhitelistDeployKeys"
@ -10129,6 +10133,10 @@
},
"x-go-name": "MergeWhitelistUsernames"
},
"protected_file_patterns": {
"type": "string",
"x-go-name": "ProtectedFilePatterns"
},
"push_whitelist_deploy_keys": {
"type": "boolean",
"x-go-name": "PushWhitelistDeployKeys"
@ -10933,6 +10941,10 @@
},
"x-go-name": "MergeWhitelistUsernames"
},
"protected_file_patterns": {
"type": "string",
"x-go-name": "ProtectedFilePatterns"
},
"push_whitelist_deploy_keys": {
"type": "boolean",
"x-go-name": "PushWhitelistDeployKeys"

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