Keyserver skeleton (#1032)

* Keyserver skeleton

* Indentation

keyserver/keyserver.go

@@ -0,0 +1,32 @@
+// Copyright 2020 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package keyserver
+
+import (
+	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
+	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
+	"github.com/matrix-org/dendrite/common/basecomponent"
+	"github.com/matrix-org/dendrite/keyserver/routing"
+)
+
+// SetupFederationSenderComponent sets up and registers HTTP handlers for the
+// FederationSender component.
+func SetupKeyServerComponent(
+	base *basecomponent.BaseDendrite,
+	deviceDB devices.Database,
+	accountsDB accounts.Database,
+) {
+	routing.Setup(base.APIMux, base.Cfg, accountsDB, deviceDB)
+}

keyserver/routing/keys.go

@@ -0,0 +1,33 @@
+// Copyright 2020 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package routing
+
+import (
+	"net/http"
+
+	"github.com/matrix-org/util"
+)
+
+func QueryKeys(
+	req *http.Request,
+) util.JSONResponse {
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: map[string]interface{}{
+			"failures":    map[string]interface{}{},
+			"device_keys": map[string]interface{}{},
+		},
+	}
+}

keyserver/routing/routing.go

@@ -0,0 +1,56 @@
+// Copyright 2020 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package routing
+
+import (
+	"net/http"
+
+	"github.com/gorilla/mux"
+	"github.com/matrix-org/dendrite/clientapi/auth"
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
+	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
+	"github.com/matrix-org/dendrite/common"
+	"github.com/matrix-org/dendrite/common/config"
+	"github.com/matrix-org/util"
+)
+
+const pathPrefixR0 = "/_matrix/client/r0"
+
+// Setup registers HTTP handlers with the given ServeMux. It also supplies the given http.Client
+// to clients which need to make outbound HTTP requests.
+//
+// Due to Setup being used to call many other functions, a gocyclo nolint is
+// applied:
+// nolint: gocyclo
+func Setup(
+	apiMux *mux.Router, cfg *config.Dendrite,
+	accountDB accounts.Database,
+	deviceDB devices.Database,
+) {
+	r0mux := apiMux.PathPrefix(pathPrefixR0).Subrouter()
+
+	authData := auth.Data{
+		AccountDB:   accountDB,
+		DeviceDB:    deviceDB,
+		AppServices: cfg.Derived.ApplicationServices,
+	}
+
+	r0mux.Handle("/keys/query",
+		common.MakeAuthAPI("queryKeys", authData, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+			return QueryKeys(req)
+		}),
+	).Methods(http.MethodPost, http.MethodOptions)
+}