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// Copyright 2016 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"context"
"fmt"
"strings"
"time"
"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/base"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"github.com/gobwas/glob"
)
// ProtectedBranch struct
type ProtectedBranch struct {
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"UNIQUE(s)"`
BranchName string `xorm:"UNIQUE(s)"`
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"`
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))
db.RegisterModel(new(DeletedBranch))
db.RegisterModel(new(RenamedBranch))
}
// IsProtected returns if the branch is protected
func (protectBranch *ProtectedBranch) IsProtected() bool {
return protectBranch.ID > 0
}
// CanUserPush returns if some user could push to this protected branch
func (protectBranch *ProtectedBranch) CanUserPush(ctx context.Context, userID int64) bool {
if !protectBranch.CanPush {
return false
}
if !protectBranch.EnableWhitelist {
if user, err := user_model.GetUserByID(ctx, userID); err != nil {
log.Error("GetUserByID: %v", err)
return false
} else if repo, err := repo_model.GetRepositoryByID(ctx, protectBranch.RepoID); err != nil {
log.Error("repo_model.GetRepositoryByID: %v", err)
return false
} else if writeAccess, err := access_model.HasAccessUnit(ctx, user, repo, unit.TypeCode, perm.AccessModeWrite); err != nil {
log.Error("HasAccessUnit: %v", err)
return false
} else {
return writeAccess
}
}
if base.Int64sContains(protectBranch.WhitelistUserIDs, userID) {
return true
}
if len(protectBranch.WhitelistTeamIDs) == 0 {
return false
}
in, err := organization.IsUserInTeams(ctx, userID, 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 base.Int64sContains(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 base.Int64sContains(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
}
// GetProtectedBranchBy getting protected branch by ID/Name
func GetProtectedBranchBy(ctx context.Context, repoID int64, branchName string) (*ProtectedBranch, error) {
rel := &ProtectedBranch{RepoID: repoID, BranchName: branchName}
has, err := db.GetByBean(ctx, rel)
if err != nil {
return nil, err
}
if !has {
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) {
if err = repo.GetOwner(ctx); err != nil {
return fmt.Errorf("GetOwner: %w", 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: %w", err)
}
return nil
}
if _, err = db.GetEngine(ctx).ID(protectBranch.ID).AllCols().Update(protectBranch); err != nil {
return fmt.Errorf("Update: %w", err)
}
return nil
}
// GetProtectedBranches get all protected branches
func GetProtectedBranches(ctx context.Context, repoID int64) ([]*ProtectedBranch, error) {
protectedBranches := make([]*ProtectedBranch, 0)
return protectedBranches, db.GetEngine(ctx).Find(&protectedBranches, &ProtectedBranch{RepoID: repoID})
}
// IsProtectedBranch checks if branch is protected
func IsProtectedBranch(ctx context.Context, repoID int64, branchName string) (bool, error) {
protectedBranch := &ProtectedBranch{
RepoID: repoID,
BranchName: branchName,
}
has, err := db.GetEngine(ctx).Exist(protectedBranch)
if err != nil {
return true, err
}
return has, 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.IsSliceInt64Eq(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.IsSliceInt64Eq(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]: %w", 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]: %w", 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.IsSliceInt64Eq(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]: %w", repo.OwnerID, repo.ID, err)
}
whitelist = make([]int64, 0, len(teams))
for i := range teams {
if util.IsInt64InSlice(teams[i].ID, newWhitelist) {
whitelist = append(whitelist, teams[i].ID)
}
}
return whitelist, err
}
// DeleteProtectedBranch removes ProtectedBranch relation between the user and repository.
func DeleteProtectedBranch(ctx context.Context, repoID, id int64) (err error) {
protectedBranch := &ProtectedBranch{
RepoID: repoID,
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
}
// DeletedBranch struct
type DeletedBranch struct {
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
Name string `xorm:"UNIQUE(s) NOT NULL"`
Commit string `xorm:"UNIQUE(s) NOT NULL"`
DeletedByID int64 `xorm:"INDEX"`
DeletedBy *user_model.User `xorm:"-"`
DeletedUnix timeutil.TimeStamp `xorm:"INDEX created"`
}
// AddDeletedBranch adds a deleted branch to the database
func AddDeletedBranch(ctx context.Context, repoID int64, branchName, commit string, deletedByID int64) error {
deletedBranch := &DeletedBranch{
RepoID: repoID,
Name: branchName,
Commit: commit,
DeletedByID: deletedByID,
}
_, err := db.GetEngine(ctx).Insert(deletedBranch)
return err
}
// GetDeletedBranches returns all the deleted branches
func GetDeletedBranches(ctx context.Context, repoID int64) ([]*DeletedBranch, error) {
deletedBranches := make([]*DeletedBranch, 0)
return deletedBranches, db.GetEngine(ctx).Where("repo_id = ?", repoID).Desc("deleted_unix").Find(&deletedBranches)
}
// GetDeletedBranchByID get a deleted branch by its ID
func GetDeletedBranchByID(ctx context.Context, repoID, id int64) (*DeletedBranch, error) {
deletedBranch := &DeletedBranch{}
has, err := db.GetEngine(ctx).Where("repo_id = ?", repoID).And("id = ?", id).Get(deletedBranch)
if err != nil {
return nil, err
}
if !has {
return nil, nil
}
return deletedBranch, nil
}
// RemoveDeletedBranchByID removes a deleted branch from the database
func RemoveDeletedBranchByID(ctx context.Context, repoID, id int64) (err error) {
deletedBranch := &DeletedBranch{
RepoID: repoID,
ID: id,
}
if affected, err := db.GetEngine(ctx).Delete(deletedBranch); err != nil {
return err
} else if affected != 1 {
return fmt.Errorf("remove deleted branch ID(%v) failed", id)
}
return nil
}
// LoadUser loads the user that deleted the branch
// When there's no user found it returns a user_model.NewGhostUser
func (deletedBranch *DeletedBranch) LoadUser(ctx context.Context) {
user, err := user_model.GetUserByID(ctx, deletedBranch.DeletedByID)
if err != nil {
user = user_model.NewGhostUser()
}
deletedBranch.DeletedBy = user
}
// RemoveDeletedBranchByName removes all deleted branches
func RemoveDeletedBranchByName(ctx context.Context, repoID int64, branch string) error {
_, err := db.GetEngine(ctx).Where("repo_id=? AND name=?", repoID, branch).Delete(new(DeletedBranch))
return err
}
// RemoveOldDeletedBranches removes old deleted branches
func RemoveOldDeletedBranches(ctx context.Context, olderThan time.Duration) {
// Nothing to do for shutdown or terminate
log.Trace("Doing: DeletedBranchesCleanup")
deleteBefore := time.Now().Add(-olderThan)
_, err := db.GetEngine(ctx).Where("deleted_unix < ?", deleteBefore.Unix()).Delete(new(DeletedBranch))
if err != nil {
log.Error("DeletedBranchesCleanup: %v", err)
}
}
// RenamedBranch provide renamed branch log
// will check it when a branch can't be found
type RenamedBranch struct {
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"INDEX NOT NULL"`
From string
To string
CreatedUnix timeutil.TimeStamp `xorm:"created"`
}
// FindRenamedBranch check if a branch was renamed
func FindRenamedBranch(ctx context.Context, repoID int64, from string) (branch *RenamedBranch, exist bool, err error) {
branch = &RenamedBranch{
RepoID: repoID,
From: from,
}
exist, err = db.GetEngine(ctx).Get(branch)
return branch, exist, err
}
// RenameBranch rename a branch
func RenameBranch(ctx context.Context, repo *repo_model.Repository, from, to string, gitAction func(isDefault bool) error) (err error) {
ctx, committer, err := db.TxContext(ctx)
if err != nil {
return err
}
defer committer.Close()
sess := db.GetEngine(ctx)
// 1. update default branch if needed
isDefault := repo.DefaultBranch == from
if isDefault {
repo.DefaultBranch = to
_, err = sess.ID(repo.ID).Cols("default_branch").Update(repo)
if err != nil {
return err
}
}
// 2. Update protected branch if needed
protectedBranch, err := GetProtectedBranchBy(ctx, repo.ID, from)
if err != nil {
return err
}
if protectedBranch != nil {
protectedBranch.BranchName = to
_, err = sess.ID(protectedBranch.ID).Cols("branch_name").Update(protectedBranch)
if err != nil {
return err
}
}
// 3. Update all not merged pull request base branch name
_, err = sess.Table("pull_request").Where("base_repo_id=? AND base_branch=? AND has_merged=?",
repo.ID, from, false).
Update(map[string]interface{}{"base_branch": to})
if err != nil {
return err
}
// 4. do git action
if err = gitAction(isDefault); err != nil {
return err
}
// 5. insert renamed branch record
renamedBranch := &RenamedBranch{
RepoID: repo.ID,
From: from,
To: to,
}
err = db.Insert(ctx, renamedBranch)
if err != nil {
return err
}
return committer.Commit()
}
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