diff options
Diffstat (limited to 'models/git/protected_branch.go')
| -rw-r--r-- | models/git/protected_branch.go | 511 |
1 files changed, 511 insertions, 0 deletions
diff --git a/models/git/protected_branch.go b/models/git/protected_branch.go new file mode 100644 index 0000000..a8b8c81 --- /dev/null +++ b/models/git/protected_branch.go @@ -0,0 +1,511 @@ +// 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"` + ApplyToAdmins bool `xorm:"NOT NULL DEFAULT false"` + + 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 +} |