Add Visible modes function from Organisation to Users too (#16069)

You can limit or hide organisations. This pull make it also posible for users

- new strings to translte
- add checkbox to user profile form
- add checkbox to admin user.edit form
- filter explore page user search
- filter api admin and public user searches
- allow admins view "hidden" users
- add app option DEFAULT_USER_VISIBILITY
- rewrite many files to use Visibility field
- check for teams intersection
- fix context output
- right fake 404 if not visible

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Andrew Thornton <art27@cantab.net>

models/user.go

@@ -432,6 +432,62 @@ func (u *User) IsPasswordSet() bool {
 	return len(u.Passwd) != 0
 }
 
+// IsVisibleToUser check if viewer is able to see user profile
+func (u *User) IsVisibleToUser(viewer *User) bool {
+	return u.isVisibleToUser(x, viewer)
+}
+
+func (u *User) isVisibleToUser(e Engine, viewer *User) bool {
+	if viewer != nil && viewer.IsAdmin {
+		return true
+	}
+
+	switch u.Visibility {
+	case structs.VisibleTypePublic:
+		return true
+	case structs.VisibleTypeLimited:
+		if viewer == nil || viewer.IsRestricted {
+			return false
+		}
+		return true
+	case structs.VisibleTypePrivate:
+		if viewer == nil || viewer.IsRestricted {
+			return false
+		}
+
+		// If they follow - they see each over
+		follower := IsFollowing(u.ID, viewer.ID)
+		if follower {
+			return true
+		}
+
+		// Now we need to check if they in some organization together
+		count, err := x.Table("team_user").
+			Where(
+				builder.And(
+					builder.Eq{"uid": viewer.ID},
+					builder.Or(
+						builder.Eq{"org_id": u.ID},
+						builder.In("org_id",
+							builder.Select("org_id").
+								From("team_user", "t2").
+								Where(builder.Eq{"uid": u.ID}))))).
+			Count(new(TeamUser))
+		if err != nil {
+			return false
+		}
+
+		if count < 0 {
+			// No common organization
+			return false
+		}
+
+		// they are in an organization together
+		return true
+	}
+	return false
+}
+
 // IsOrganization returns true if user is actually a organization.
 func (u *User) IsOrganization() bool {
 	return u.Type == UserTypeOrganization
@@ -796,8 +852,13 @@ func IsUsableUsername(name string) error {
 	return isUsableName(reservedUsernames, reservedUserPatterns, name)
 }
 
+// CreateUserOverwriteOptions are an optional options who overwrite system defaults on user creation
+type CreateUserOverwriteOptions struct {
+	Visibility structs.VisibleType
+}
+
 // CreateUser creates record of a new user.
-func CreateUser(u *User) (err error) {
+func CreateUser(u *User, overwriteDefault ...*CreateUserOverwriteOptions) (err error) {
 	if err = IsUsableUsername(u.Name); err != nil {
 		return err
 	}
@@ -831,8 +892,6 @@ func CreateUser(u *User) (err error) {
 		return ErrEmailAlreadyUsed{u.Email}
 	}
 
-	u.KeepEmailPrivate = setting.Service.DefaultKeepEmailPrivate
-
 	u.LowerName = strings.ToLower(u.Name)
 	u.AvatarEmail = u.Email
 	if u.Rands, err = GetUserSalt(); err != nil {
@@ -841,10 +900,18 @@ func CreateUser(u *User) (err error) {
 	if err = u.SetPassword(u.Passwd); err != nil {
 		return err
 	}
+
+	// set system defaults
+	u.KeepEmailPrivate = setting.Service.DefaultKeepEmailPrivate
+	u.Visibility = setting.Service.DefaultUserVisibilityMode
 	u.AllowCreateOrganization = setting.Service.DefaultAllowCreateOrganization && !setting.Admin.DisableRegularOrgCreation
 	u.EmailNotificationsPreference = setting.Admin.DefaultEmailNotification
 	u.MaxRepoCreation = -1
 	u.Theme = setting.UI.DefaultTheme
+	// overwrite defaults if set
+	if len(overwriteDefault) != 0 && overwriteDefault[0] != nil {
+		u.Visibility = overwriteDefault[0].Visibility
+	}
 
 	if _, err = sess.Insert(u); err != nil {
 		return err
@@ -1527,10 +1594,9 @@ func (opts *SearchUserOptions) toConds() builder.Cond {
 		cond = cond.And(keywordCond)
 	}
 
+	// If visibility filtered
 	if len(opts.Visible) > 0 {
 		cond = cond.And(builder.In("visibility", opts.Visible))
-	} else {
-		cond = cond.And(builder.In("visibility", structs.VisibleTypePublic))
 	}
 
 	if opts.Actor != nil {
@@ -1543,16 +1609,27 @@ func (opts *SearchUserOptions) toConds() builder.Cond {
 			exprCond = builder.Expr("org_user.org_id = \"user\".id")
 		}
 
-		var accessCond builder.Cond
-		if !opts.Actor.IsRestricted {
-			accessCond = builder.Or(
-				builder.In("id", builder.Select("org_id").From("org_user").LeftJoin("`user`", exprCond).Where(builder.And(builder.Eq{"uid": opts.Actor.ID}, builder.Eq{"visibility": structs.VisibleTypePrivate}))),
-				builder.In("visibility", structs.VisibleTypePublic, structs.VisibleTypeLimited))
-		} else {
-			// restricted users only see orgs they are a member of
-			accessCond = builder.In("id", builder.Select("org_id").From("org_user").LeftJoin("`user`", exprCond).Where(builder.And(builder.Eq{"uid": opts.Actor.ID})))
+		// If Admin - they see all users!
+		if !opts.Actor.IsAdmin {
+			// Force visiblity for privacy
+			var accessCond builder.Cond
+			if !opts.Actor.IsRestricted {
+				accessCond = builder.Or(
+					builder.In("id", builder.Select("org_id").From("org_user").LeftJoin("`user`", exprCond).Where(builder.And(builder.Eq{"uid": opts.Actor.ID}, builder.Eq{"visibility": structs.VisibleTypePrivate}))),
+					builder.In("visibility", structs.VisibleTypePublic, structs.VisibleTypeLimited))
+			} else {
+				// restricted users only see orgs they are a member of
+				accessCond = builder.In("id", builder.Select("org_id").From("org_user").LeftJoin("`user`", exprCond).Where(builder.And(builder.Eq{"uid": opts.Actor.ID})))
+			}
+			// Don't forget about self
+			accessCond = accessCond.Or(builder.Eq{"id": opts.Actor.ID})
+			cond = cond.And(accessCond)
 		}
-		cond = cond.And(accessCond)
+
+	} else {
+		// Force visiblity for privacy
+		// Not logged in - only public users
+		cond = cond.And(builder.In("visibility", structs.VisibleTypePublic))
 	}
 
 	if opts.UID > 0 {