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gitea/models/git/protected_branch.go

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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"context"
"errors"
"fmt"
"slices"
"strings"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/organization"
"code.gitea.io/gitea/models/perm"
access_model "code.gitea.io/gitea/models/perm/access"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"github.com/gobwas/glob"
"github.com/gobwas/glob/syntax"
"xorm.io/builder"
)
var ErrBranchIsProtected = errors.New("branch is protected")
// ProtectedBranch struct
type ProtectedBranch struct {
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"UNIQUE(s)"`
Repo *repo_model.Repository `xorm:"-"`
RuleName string `xorm:"'branch_name' UNIQUE(s)"` // a branch name or a glob match to branch name
globRule glob.Glob `xorm:"-"`
isPlainName bool `xorm:"-"`
CanPush bool `xorm:"NOT NULL DEFAULT false"`
EnableWhitelist bool
WhitelistUserIDs []int64 `xorm:"JSON TEXT"`
WhitelistTeamIDs []int64 `xorm:"JSON TEXT"`
EnableMergeWhitelist bool `xorm:"NOT NULL DEFAULT false"`
WhitelistDeployKeys bool `xorm:"NOT NULL DEFAULT false"`
MergeWhitelistUserIDs []int64 `xorm:"JSON TEXT"`
MergeWhitelistTeamIDs []int64 `xorm:"JSON TEXT"`
EnableStatusCheck bool `xorm:"NOT NULL DEFAULT false"`
StatusCheckContexts []string `xorm:"JSON TEXT"`
EnableApprovalsWhitelist bool `xorm:"NOT NULL DEFAULT false"`
ApprovalsWhitelistUserIDs []int64 `xorm:"JSON TEXT"`
ApprovalsWhitelistTeamIDs []int64 `xorm:"JSON TEXT"`
RequiredApprovals int64 `xorm:"NOT NULL DEFAULT 0"`
BlockOnRejectedReviews bool `xorm:"NOT NULL DEFAULT false"`
BlockOnOfficialReviewRequests bool `xorm:"NOT NULL DEFAULT false"`
BlockOnOutdatedBranch bool `xorm:"NOT NULL DEFAULT false"`
DismissStaleApprovals bool `xorm:"NOT NULL DEFAULT false"`
IgnoreStaleApprovals bool `xorm:"NOT NULL DEFAULT false"`
RequireSignedCommits bool `xorm:"NOT NULL DEFAULT false"`
ProtectedFilePatterns string `xorm:"TEXT"`
UnprotectedFilePatterns string `xorm:"TEXT"`
CreatedUnix timeutil.TimeStamp `xorm:"created"`
UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
}
func init() {
db.RegisterModel(new(ProtectedBranch))
}
// IsRuleNameSpecial return true if it contains special character
func IsRuleNameSpecial(ruleName string) bool {
for i := 0; i < len(ruleName); i++ {
if syntax.Special(ruleName[i]) {
return true
}
}
return false
}
func (protectBranch *ProtectedBranch) loadGlob() {
if protectBranch.globRule == nil {
var err error
protectBranch.globRule, err = glob.Compile(protectBranch.RuleName, '/')
if err != nil {
log.Warn("Invalid glob rule for ProtectedBranch[%d]: %s %v", protectBranch.ID, protectBranch.RuleName, err)
protectBranch.globRule = glob.MustCompile(glob.QuoteMeta(protectBranch.RuleName), '/')
}
protectBranch.isPlainName = !IsRuleNameSpecial(protectBranch.RuleName)
}
}
// Match tests if branchName matches the rule
func (protectBranch *ProtectedBranch) Match(branchName string) bool {
protectBranch.loadGlob()
if protectBranch.isPlainName {
return strings.EqualFold(protectBranch.RuleName, branchName)
}
return protectBranch.globRule.Match(branchName)
}
func (protectBranch *ProtectedBranch) LoadRepo(ctx context.Context) (err error) {
if protectBranch.Repo != nil {
return nil
}
protectBranch.Repo, err = repo_model.GetRepositoryByID(ctx, protectBranch.RepoID)
return err
}
// CanUserPush returns if some user could push to this protected branch
func (protectBranch *ProtectedBranch) CanUserPush(ctx context.Context, user *user_model.User) bool {
if !protectBranch.CanPush {
return false
}
if !protectBranch.EnableWhitelist {
if err := protectBranch.LoadRepo(ctx); err != nil {
log.Error("LoadRepo: %v", err)
return false
}
writeAccess, err := access_model.HasAccessUnit(ctx, user, protectBranch.Repo, unit.TypeCode, perm.AccessModeWrite)
if err != nil {
log.Error("HasAccessUnit: %v", err)
return false
}
return writeAccess
}
if slices.Contains(protectBranch.WhitelistUserIDs, user.ID) {
return true
}
if len(protectBranch.WhitelistTeamIDs) == 0 {
return false
}
in, err := organization.IsUserInTeams(ctx, user.ID, protectBranch.WhitelistTeamIDs)
if err != nil {
log.Error("IsUserInTeams: %v", err)
return false
}
return in
}
// IsUserMergeWhitelisted checks if some user is whitelisted to merge to this branch
func IsUserMergeWhitelisted(ctx context.Context, protectBranch *ProtectedBranch, userID int64, permissionInRepo access_model.Permission) bool {
if !protectBranch.EnableMergeWhitelist {
// Then we need to fall back on whether the user has write permission
return permissionInRepo.CanWrite(unit.TypeCode)
}
if slices.Contains(protectBranch.MergeWhitelistUserIDs, userID) {
return true
}
if len(protectBranch.MergeWhitelistTeamIDs) == 0 {
return false
}
in, err := organization.IsUserInTeams(ctx, userID, protectBranch.MergeWhitelistTeamIDs)
if err != nil {
log.Error("IsUserInTeams: %v", err)
return false
}
return in
}
// IsUserOfficialReviewer check if user is official reviewer for the branch (counts towards required approvals)
func IsUserOfficialReviewer(ctx context.Context, protectBranch *ProtectedBranch, user *user_model.User) (bool, error) {
repo, err := repo_model.GetRepositoryByID(ctx, protectBranch.RepoID)
if err != nil {
return false, err
}
if !protectBranch.EnableApprovalsWhitelist {
// Anyone with write access is considered official reviewer
writeAccess, err := access_model.HasAccessUnit(ctx, user, repo, unit.TypeCode, perm.AccessModeWrite)
if err != nil {
return false, err
}
return writeAccess, nil
}
if slices.Contains(protectBranch.ApprovalsWhitelistUserIDs, user.ID) {
return true, nil
}
inTeam, err := organization.IsUserInTeams(ctx, user.ID, protectBranch.ApprovalsWhitelistTeamIDs)
if err != nil {
return false, err
}
return inTeam, nil
}
// GetProtectedFilePatterns parses a semicolon separated list of protected file patterns and returns a glob.Glob slice
func (protectBranch *ProtectedBranch) GetProtectedFilePatterns() []glob.Glob {
return getFilePatterns(protectBranch.ProtectedFilePatterns)
}
// GetUnprotectedFilePatterns parses a semicolon separated list of unprotected file patterns and returns a glob.Glob slice
func (protectBranch *ProtectedBranch) GetUnprotectedFilePatterns() []glob.Glob {
return getFilePatterns(protectBranch.UnprotectedFilePatterns)
}
func getFilePatterns(filePatterns string) []glob.Glob {
extarr := make([]glob.Glob, 0, 10)
for _, expr := range strings.Split(strings.ToLower(filePatterns), ";") {
expr = strings.TrimSpace(expr)
if expr != "" {
if g, err := glob.Compile(expr, '.', '/'); err != nil {
log.Info("Invalid glob expression '%s' (skipped): %v", expr, err)
} else {
extarr = append(extarr, g)
}
}
}
return extarr
}
// MergeBlockedByProtectedFiles returns true if merge is blocked by protected files change
func (protectBranch *ProtectedBranch) MergeBlockedByProtectedFiles(changedProtectedFiles []string) bool {
glob := protectBranch.GetProtectedFilePatterns()
if len(glob) == 0 {
return false
}
return len(changedProtectedFiles) > 0
}
// IsProtectedFile return if path is protected
func (protectBranch *ProtectedBranch) IsProtectedFile(patterns []glob.Glob, path string) bool {
if len(patterns) == 0 {
patterns = protectBranch.GetProtectedFilePatterns()
if len(patterns) == 0 {
return false
}
}
lpath := strings.ToLower(strings.TrimSpace(path))
r := false
for _, pat := range patterns {
if pat.Match(lpath) {
r = true
break
}
}
return r
}
// IsUnprotectedFile return if path is unprotected
func (protectBranch *ProtectedBranch) IsUnprotectedFile(patterns []glob.Glob, path string) bool {
if len(patterns) == 0 {
patterns = protectBranch.GetUnprotectedFilePatterns()
if len(patterns) == 0 {
return false
}
}
lpath := strings.ToLower(strings.TrimSpace(path))
r := false
for _, pat := range patterns {
if pat.Match(lpath) {
r = true
break
}
}
return r
}
// GetProtectedBranchRuleByName getting protected branch rule by name
func GetProtectedBranchRuleByName(ctx context.Context, repoID int64, ruleName string) (*ProtectedBranch, error) {
// branch_name is legacy name, it actually is rule name
rel, exist, err := db.Get[ProtectedBranch](ctx, builder.Eq{"repo_id": repoID, "branch_name": ruleName})
if err != nil {
return nil, err
} else if !exist {
return nil, nil
}
return rel, nil
}
// GetProtectedBranchRuleByID getting protected branch rule by rule ID
func GetProtectedBranchRuleByID(ctx context.Context, repoID, ruleID int64) (*ProtectedBranch, error) {
rel, exist, err := db.Get[ProtectedBranch](ctx, builder.Eq{"repo_id": repoID, "id": ruleID})
if err != nil {
return nil, err
} else if !exist {
return nil, nil
}
return rel, nil
}
// WhitelistOptions represent all sorts of whitelists used for protected branches
type WhitelistOptions struct {
UserIDs []int64
TeamIDs []int64
MergeUserIDs []int64
MergeTeamIDs []int64
ApprovalsUserIDs []int64
ApprovalsTeamIDs []int64
}
// UpdateProtectBranch saves branch protection options of repository.
// If ID is 0, it creates a new record. Otherwise, updates existing record.
// This function also performs check if whitelist user and team's IDs have been changed
// to avoid unnecessary whitelist delete and regenerate.
func UpdateProtectBranch(ctx context.Context, repo *repo_model.Repository, protectBranch *ProtectedBranch, opts WhitelistOptions) (err error) {
err = repo.MustNotBeArchived()
if err != nil {
return err
}
if err = repo.LoadOwner(ctx); err != nil {
return fmt.Errorf("LoadOwner: %v", err)
}
whitelist, err := updateUserWhitelist(ctx, repo, protectBranch.WhitelistUserIDs, opts.UserIDs)
if err != nil {
return err
}
protectBranch.WhitelistUserIDs = whitelist
whitelist, err = updateUserWhitelist(ctx, repo, protectBranch.MergeWhitelistUserIDs, opts.MergeUserIDs)
if err != nil {
return err
}
protectBranch.MergeWhitelistUserIDs = whitelist
whitelist, err = updateApprovalWhitelist(ctx, repo, protectBranch.ApprovalsWhitelistUserIDs, opts.ApprovalsUserIDs)
if err != nil {
return err
}
protectBranch.ApprovalsWhitelistUserIDs = whitelist
// if the repo is in an organization
whitelist, err = updateTeamWhitelist(ctx, repo, protectBranch.WhitelistTeamIDs, opts.TeamIDs)
if err != nil {
return err
}
protectBranch.WhitelistTeamIDs = whitelist
whitelist, err = updateTeamWhitelist(ctx, repo, protectBranch.MergeWhitelistTeamIDs, opts.MergeTeamIDs)
if err != nil {
return err
}
protectBranch.MergeWhitelistTeamIDs = whitelist
whitelist, err = updateTeamWhitelist(ctx, repo, protectBranch.ApprovalsWhitelistTeamIDs, opts.ApprovalsTeamIDs)
if err != nil {
return err
}
protectBranch.ApprovalsWhitelistTeamIDs = whitelist
// Make sure protectBranch.ID is not 0 for whitelists
if protectBranch.ID == 0 {
if _, err = db.GetEngine(ctx).Insert(protectBranch); err != nil {
return fmt.Errorf("Insert: %v", err)
}
return nil
}
if _, err = db.GetEngine(ctx).ID(protectBranch.ID).AllCols().Update(protectBranch); err != nil {
return fmt.Errorf("Update: %v", err)
}
return nil
}
// updateApprovalWhitelist checks whether the user whitelist changed and returns a whitelist with
// the users from newWhitelist which have explicit read or write access to the repo.
func updateApprovalWhitelist(ctx context.Context, repo *repo_model.Repository, currentWhitelist, newWhitelist []int64) (whitelist []int64, err error) {
hasUsersChanged := !util.SliceSortedEqual(currentWhitelist, newWhitelist)
if !hasUsersChanged {
return currentWhitelist, nil
}
whitelist = make([]int64, 0, len(newWhitelist))
for _, userID := range newWhitelist {
if reader, err := access_model.IsRepoReader(ctx, repo, userID); err != nil {
return nil, err
} else if !reader {
continue
}
whitelist = append(whitelist, userID)
}
return whitelist, err
}
// updateUserWhitelist checks whether the user whitelist changed and returns a whitelist with
// the users from newWhitelist which have write access to the repo.
func updateUserWhitelist(ctx context.Context, repo *repo_model.Repository, currentWhitelist, newWhitelist []int64) (whitelist []int64, err error) {
hasUsersChanged := !util.SliceSortedEqual(currentWhitelist, newWhitelist)
if !hasUsersChanged {
return currentWhitelist, nil
}
whitelist = make([]int64, 0, len(newWhitelist))
for _, userID := range newWhitelist {
user, err := user_model.GetUserByID(ctx, userID)
if err != nil {
return nil, fmt.Errorf("GetUserByID [user_id: %d, repo_id: %d]: %v", userID, repo.ID, err)
}
perm, err := access_model.GetUserRepoPermission(ctx, repo, user)
if err != nil {
return nil, fmt.Errorf("GetUserRepoPermission [user_id: %d, repo_id: %d]: %v", userID, repo.ID, err)
}
if !perm.CanWrite(unit.TypeCode) {
continue // Drop invalid user ID
}
whitelist = append(whitelist, userID)
}
return whitelist, err
}
// updateTeamWhitelist checks whether the team whitelist changed and returns a whitelist with
// the teams from newWhitelist which have write access to the repo.
func updateTeamWhitelist(ctx context.Context, repo *repo_model.Repository, currentWhitelist, newWhitelist []int64) (whitelist []int64, err error) {
hasTeamsChanged := !util.SliceSortedEqual(currentWhitelist, newWhitelist)
if !hasTeamsChanged {
return currentWhitelist, nil
}
teams, err := organization.GetTeamsWithAccessToRepo(ctx, repo.OwnerID, repo.ID, perm.AccessModeRead)
if err != nil {
return nil, fmt.Errorf("GetTeamsWithAccessToRepo [org_id: %d, repo_id: %d]: %v", repo.OwnerID, repo.ID, err)
}
whitelist = make([]int64, 0, len(teams))
for i := range teams {
if slices.Contains(newWhitelist, teams[i].ID) {
whitelist = append(whitelist, teams[i].ID)
}
}
return whitelist, err
}
// DeleteProtectedBranch removes ProtectedBranch relation between the user and repository.
func DeleteProtectedBranch(ctx context.Context, repo *repo_model.Repository, id int64) (err error) {
err = repo.MustNotBeArchived()
if err != nil {
return err
}
protectedBranch := &ProtectedBranch{
RepoID: repo.ID,
ID: id,
}
if affected, err := db.GetEngine(ctx).Delete(protectedBranch); err != nil {
return err
} else if affected != 1 {
return fmt.Errorf("delete protected branch ID(%v) failed", id)
}
return nil
}
// RemoveUserIDFromProtectedBranch remove all user ids from protected branch options
func RemoveUserIDFromProtectedBranch(ctx context.Context, p *ProtectedBranch, userID int64) error {
lenIDs, lenApprovalIDs, lenMergeIDs := len(p.WhitelistUserIDs), len(p.ApprovalsWhitelistUserIDs), len(p.MergeWhitelistUserIDs)
p.WhitelistUserIDs = util.SliceRemoveAll(p.WhitelistUserIDs, userID)
p.ApprovalsWhitelistUserIDs = util.SliceRemoveAll(p.ApprovalsWhitelistUserIDs, userID)
p.MergeWhitelistUserIDs = util.SliceRemoveAll(p.MergeWhitelistUserIDs, userID)
if lenIDs != len(p.WhitelistUserIDs) || lenApprovalIDs != len(p.ApprovalsWhitelistUserIDs) ||
lenMergeIDs != len(p.MergeWhitelistUserIDs) {
if _, err := db.GetEngine(ctx).ID(p.ID).Cols(
"whitelist_user_i_ds",
"merge_whitelist_user_i_ds",
"approvals_whitelist_user_i_ds",
).Update(p); err != nil {
return fmt.Errorf("updateProtectedBranches: %v", err)
}
}
return nil
}
// RemoveTeamIDFromProtectedBranch remove all team ids from protected branch options
func RemoveTeamIDFromProtectedBranch(ctx context.Context, p *ProtectedBranch, teamID int64) error {
lenIDs, lenApprovalIDs, lenMergeIDs := len(p.WhitelistTeamIDs), len(p.ApprovalsWhitelistTeamIDs), len(p.MergeWhitelistTeamIDs)
p.WhitelistTeamIDs = util.SliceRemoveAll(p.WhitelistTeamIDs, teamID)
p.ApprovalsWhitelistTeamIDs = util.SliceRemoveAll(p.ApprovalsWhitelistTeamIDs, teamID)
p.MergeWhitelistTeamIDs = util.SliceRemoveAll(p.MergeWhitelistTeamIDs, teamID)
if lenIDs != len(p.WhitelistTeamIDs) ||
lenApprovalIDs != len(p.ApprovalsWhitelistTeamIDs) ||
lenMergeIDs != len(p.MergeWhitelistTeamIDs) {
if _, err := db.GetEngine(ctx).ID(p.ID).Cols(
"whitelist_team_i_ds",
"merge_whitelist_team_i_ds",
"approvals_whitelist_team_i_ds",
).Update(p); err != nil {
return fmt.Errorf("updateProtectedBranches: %v", err)
}
}
return nil
}