Make allowed Visiblity modes configurable for Users (#16271)

Now that #16069 is merged, some sites may wish to enforce that users are all public, limited or private, and/or disallow users from becoming private.

This PR adds functionality and settings to constrain a user's ability to change their visibility.

Co-authored-by: zeripath <art27@cantab.net>

routers/web/admin/users.go

@@ -52,6 +52,7 @@ func NewUser(ctx *context.Context) {
 	ctx.Data["PageIsAdmin"] = true
 	ctx.Data["PageIsAdminUsers"] = true
 	ctx.Data["DefaultUserVisibilityMode"] = setting.Service.DefaultUserVisibilityMode
+	ctx.Data["AllowedUserVisibilityModes"] = setting.Service.AllowedUserVisibilityModesSlice.ToVisibleTypeSlice()
 
 	ctx.Data["login_type"] = "0-0"
 
@@ -211,6 +212,7 @@ func EditUser(ctx *context.Context) {
 	ctx.Data["PageIsAdminUsers"] = true
 	ctx.Data["DisableRegularOrgCreation"] = setting.Admin.DisableRegularOrgCreation
 	ctx.Data["DisableMigrations"] = setting.Repository.DisableMigrations
+	ctx.Data["AllowedUserVisibilityModes"] = setting.Service.AllowedUserVisibilityModesSlice.ToVisibleTypeSlice()
 
 	prepareUserInfo(ctx)
 	if ctx.Written() {

routers/web/admin/users_test.go

@@ -56,7 +56,6 @@ func TestNewUserPost_MustChangePassword(t *testing.T) {
 }
 
 func TestNewUserPost_MustChangePasswordFalse(t *testing.T) {
-
 	models.PrepareTestEnv(t)
 	ctx := test.MockContext(t, "admin/users/new")
 
@@ -94,7 +93,6 @@ func TestNewUserPost_MustChangePasswordFalse(t *testing.T) {
 }
 
 func TestNewUserPost_InvalidEmail(t *testing.T) {
-
 	models.PrepareTestEnv(t)
 	ctx := test.MockContext(t, "admin/users/new")
 
@@ -125,7 +123,6 @@ func TestNewUserPost_InvalidEmail(t *testing.T) {
 }
 
 func TestNewUserPost_VisiblityDefaultPublic(t *testing.T) {
-
 	models.PrepareTestEnv(t)
 	ctx := test.MockContext(t, "admin/users/new")
 
@@ -164,7 +161,6 @@ func TestNewUserPost_VisiblityDefaultPublic(t *testing.T) {
 }
 
 func TestNewUserPost_VisibilityPrivate(t *testing.T) {
-
 	models.PrepareTestEnv(t)
 	ctx := test.MockContext(t, "admin/users/new")
 

routers/web/user/setting/profile.go

@@ -38,6 +38,7 @@ const (
 func Profile(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("settings")
 	ctx.Data["PageIsSettingsProfile"] = true
+	ctx.Data["AllowedUserVisibilityModes"] = setting.Service.AllowedUserVisibilityModesSlice.ToVisibleTypeSlice()
 
 	ctx.HTML(http.StatusOK, tplSettingsProfile)
 }