[MM-61756] Attribute Based Access Control - Phase 1 (#30785)

Attribute Based Access Control - Base
* MM-63662

* MM-63919

* MM-63954

* MM-63955 

* MM-63425

* MM-63426

* MM-63458

* MM-63459

* MM-63603

* MM-63845

* MM-64146

* MM-64199

* MM-64201

* MM-64233

* MM-64247

* MM-64268

---------

Co-authored-by: Harshil Sharma <harshilsharma63@gmail.com>
Co-authored-by: Pablo Andrés Vélez Vidal <pablovv2012@gmail.com>
Co-authored-by: abhijit-singh <abhijitsingh0702@gmail.com>
Co-authored-by: Harrison Healey <harrisonmhealey@gmail.com>

server/channels/api4/access_control_local.go

@@ -0,0 +1,27 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package api4
+
+import "net/http"
+
+func (api *API) InitAccessControlPolicyLocal() {
+	if !api.srv.Config().FeatureFlags.AttributeBasedAccessControl {
+		return
+	}
+	api.BaseRoutes.AccessControlPolicies.Handle("", api.APILocal(createAccessControlPolicy)).Methods(http.MethodPut)
+	api.BaseRoutes.AccessControlPolicies.Handle("/search", api.APILocal(searchAccessControlPolicies)).Methods(http.MethodPost)
+
+	api.BaseRoutes.AccessControlPolicies.Handle("/cel/check", api.APILocal(checkExpression)).Methods(http.MethodPost)
+	api.BaseRoutes.AccessControlPolicies.Handle("/cel/test", api.APILocal(testExpression)).Methods(http.MethodPost)
+	api.BaseRoutes.AccessControlPolicies.Handle("/cel/autocomplete/fields", api.APILocal(getFieldsAutocomplete)).Methods(http.MethodGet)
+	api.BaseRoutes.AccessControlPolicies.Handle("/cel/visual_ast", api.APILocal(convertToVisualAST)).Methods(http.MethodPost)
+
+	api.BaseRoutes.AccessControlPolicy.Handle("", api.APILocal(getAccessControlPolicy)).Methods(http.MethodGet)
+	api.BaseRoutes.AccessControlPolicy.Handle("", api.APILocal(deleteAccessControlPolicy)).Methods(http.MethodDelete)
+	api.BaseRoutes.AccessControlPolicy.Handle("/activate", api.APILocal(updateActiveStatus)).Methods(http.MethodGet)
+	api.BaseRoutes.AccessControlPolicy.Handle("/assign", api.APILocal(assignAccessPolicy)).Methods(http.MethodPost)
+	api.BaseRoutes.AccessControlPolicy.Handle("/unassign", api.APILocal(unassignAccessPolicy)).Methods(http.MethodDelete)
+	api.BaseRoutes.AccessControlPolicy.Handle("/resources/channels", api.APILocal(getChannelsForAccessControlPolicy)).Methods(http.MethodGet)
+	api.BaseRoutes.AccessControlPolicy.Handle("/resources/channels/search", api.APILocal(searchChannelsForAccessControlPolicy)).Methods(http.MethodPost)
+}