use go module for dependencies (#594)

mediaapi/routing/routing.go

@@ -0,0 +1,104 @@
+// Copyright 2017 Vector Creations Ltd
+//
+// 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/dendrite/clientapi/auth"
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+
+	"github.com/gorilla/mux"
+	"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/dendrite/mediaapi/storage"
+	"github.com/matrix-org/dendrite/mediaapi/types"
+	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/util"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+const pathPrefixR0 = "/_matrix/media/r0"
+
+// Setup registers the media API HTTP handlers
+func Setup(
+	apiMux *mux.Router,
+	cfg *config.Dendrite,
+	db *storage.Database,
+	deviceDB *devices.Database,
+	client *gomatrixserverlib.Client,
+) {
+	r0mux := apiMux.PathPrefix(pathPrefixR0).Subrouter()
+
+	activeThumbnailGeneration := &types.ActiveThumbnailGeneration{
+		PathToResult: map[string]*types.ThumbnailGenerationResult{},
+	}
+	authData := auth.Data{
+		AccountDB:   nil,
+		DeviceDB:    deviceDB,
+		AppServices: nil,
+	}
+
+	// TODO: Add AS support
+	r0mux.Handle("/upload", common.MakeAuthAPI(
+		"upload", authData,
+		func(req *http.Request, _ *authtypes.Device) util.JSONResponse {
+			return Upload(req, cfg, db, activeThumbnailGeneration)
+		},
+	)).Methods(http.MethodPost, http.MethodOptions)
+
+	activeRemoteRequests := &types.ActiveRemoteRequests{
+		MXCToResult: map[string]*types.RemoteRequestResult{},
+	}
+	r0mux.Handle("/download/{serverName}/{mediaId}",
+		makeDownloadAPI("download", cfg, db, client, activeRemoteRequests, activeThumbnailGeneration),
+	).Methods(http.MethodGet, http.MethodOptions)
+	r0mux.Handle("/thumbnail/{serverName}/{mediaId}",
+		makeDownloadAPI("thumbnail", cfg, db, client, activeRemoteRequests, activeThumbnailGeneration),
+	).Methods(http.MethodGet, http.MethodOptions)
+}
+
+func makeDownloadAPI(
+	name string,
+	cfg *config.Dendrite,
+	db *storage.Database,
+	client *gomatrixserverlib.Client,
+	activeRemoteRequests *types.ActiveRemoteRequests,
+	activeThumbnailGeneration *types.ActiveThumbnailGeneration,
+) http.HandlerFunc {
+	return prometheus.InstrumentHandler(name, http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		req = util.RequestWithLogging(req)
+
+		// Set common headers returned regardless of the outcome of the request
+		util.SetCORSHeaders(w)
+		// Content-Type will be overridden in case of returning file data, else we respond with JSON-formatted errors
+		w.Header().Set("Content-Type", "application/json")
+
+		vars := mux.Vars(req)
+		Download(
+			w,
+			req,
+			gomatrixserverlib.ServerName(vars["serverName"]),
+			types.MediaID(vars["mediaId"]),
+			cfg,
+			db,
+			client,
+			activeRemoteRequests,
+			activeThumbnailGeneration,
+			name == "thumbnail",
+		)
+	}))
+}