fix maximum permission granted to doer

Author: wxiaoguang

models/perm/access/repo_permission.go

@@ -267,7 +267,6 @@ func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, use
 	perm.units = repo.Units
 
 	// anonymous user visit private repo.
-	// TODO: anonymous user visit public unit of private repo???
 	if user == nil && repo.IsPrivate {
 		perm.AccessMode = perm_model.AccessModeNone
 		return perm, nil
@@ -286,7 +285,8 @@ func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, use
 	}
 
 	// Prevent strangers from checking out public repo of private organization/users
-	// Allow user if they are collaborator of a repo within a private user or a private organization but not a member of the organization itself
+	// Allow user if they are a collaborator of a repo within a private user or a private organization but not a member of the organization itself
+	// TODO: rename it to "IsOwnerVisibleToDoer"
 	if !organization.HasOrgOrUserVisible(ctx, repo.Owner, user) && !isCollaborator {
 		perm.AccessMode = perm_model.AccessModeNone
 		return perm, nil
@@ -304,7 +304,7 @@ func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, use
 		return perm, nil
 	}
 
-	// plain user
+	// plain user TODO: this check should be replaced, only need to check collaborator access mode
 	perm.AccessMode, err = accessLevel(ctx, user, repo)
 	if err != nil {
 		return perm, err
@@ -314,6 +314,19 @@ func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, use
 		return perm, nil
 	}
 
+	// now: the owner is visible to doer, if the repo is public, then the min access mode is read
+	minAccessMode := util.Iif(!repo.IsPrivate && !user.IsRestricted, perm_model.AccessModeRead, perm_model.AccessModeNone)
+	perm.AccessMode = max(perm.AccessMode, minAccessMode)
+
+	// get units mode from teams
+	teams, err := organization.GetUserRepoTeams(ctx, repo.OwnerID, user.ID, repo.ID)
+	if err != nil {
+		return perm, err
+	}
+	if len(teams) == 0 {
+		return perm, nil
+	}
+
 	perm.unitsMode = make(map[unit.Type]perm_model.AccessMode)
 
 	// Collaborators on organization
@@ -323,12 +336,6 @@ func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, use
 		}
 	}
 
-	// get units mode from teams
-	teams, err := organization.GetUserRepoTeams(ctx, repo.OwnerID, user.ID, repo.ID)
-	if err != nil {
-		return perm, err
-	}
-
 	// if user in an owner team
 	for _, team := range teams {
 		if team.HasAdminAccess() {
@@ -339,19 +346,12 @@ func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, use
 	}
 
 	for _, u := range repo.Units {
-		var found bool
 		for _, team := range teams {
+			unitAccessMode := minAccessMode
 			if teamMode, exist := team.UnitAccessModeEx(ctx, u.Type); exist {
-				perm.unitsMode[u.Type] = max(perm.unitsMode[u.Type], teamMode)
-				found = true
-			}
-		}
-
-		// for a public repo on an organization, a non-restricted user has read permission on non-team defined units.
-		if !found && !repo.IsPrivate && !user.IsRestricted {
-			if _, ok := perm.unitsMode[u.Type]; !ok {
-				perm.unitsMode[u.Type] = perm_model.AccessModeRead
+				unitAccessMode = max(perm.unitsMode[u.Type], unitAccessMode, teamMode)
 			}
+			perm.unitsMode[u.Type] = unitAccessMode
 		}
 	}