Initial commit based on https://github.com/minio/minio/releases/tag/RELEASE.2020-07-02T00-15-09Z

cmd/web-router.go

@@ -0,0 +1,104 @@
+/*
+ * MinIO Cloud Storage, (C) 2016 MinIO, Inc.
+ *
+ * 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 cmd
+
+import (
+	"fmt"
+	"net/http"
+
+	assetfs "github.com/elazarl/go-bindata-assetfs"
+	"github.com/gorilla/handlers"
+	"github.com/gorilla/mux"
+	jsonrpc "github.com/gorilla/rpc/v2"
+	"github.com/gorilla/rpc/v2/json2"
+	"github.com/minio/minio/browser"
+)
+
+// webAPI container for Web API.
+type webAPIHandlers struct {
+	ObjectAPI func() ObjectLayer
+	CacheAPI  func() CacheObjectLayer
+}
+
+// indexHandler - Handler to serve index.html
+type indexHandler struct {
+	handler http.Handler
+}
+
+func (h indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	r.URL.Path = minioReservedBucketPath + SlashSeparator
+	h.handler.ServeHTTP(w, r)
+}
+
+const assetPrefix = "production"
+
+func assetFS() *assetfs.AssetFS {
+	return &assetfs.AssetFS{
+		Asset:     browser.Asset,
+		AssetDir:  browser.AssetDir,
+		AssetInfo: browser.AssetInfo,
+		Prefix:    assetPrefix,
+	}
+}
+
+// specialAssets are files which are unique files not embedded inside index_bundle.js.
+const specialAssets = "index_bundle.*.js|loader.css|logo.svg|firefox.png|safari.png|chrome.png|favicon-16x16.png|favicon-32x32.png|favicon-96x96.png"
+
+// registerWebRouter - registers web router for serving minio browser.
+func registerWebRouter(router *mux.Router) error {
+	// Initialize Web.
+	web := &webAPIHandlers{
+		ObjectAPI: newObjectLayerFn,
+		CacheAPI:  newCachedObjectLayerFn,
+	}
+
+	// Initialize a new json2 codec.
+	codec := json2.NewCodec()
+
+	// MinIO browser router.
+	webBrowserRouter := router.PathPrefix(minioReservedBucketPath).HeadersRegexp("User-Agent", ".*Mozilla.*").Subrouter()
+
+	// Initialize json rpc handlers.
+	webRPC := jsonrpc.NewServer()
+	webRPC.RegisterCodec(codec, "application/json")
+	webRPC.RegisterCodec(codec, "application/json; charset=UTF-8")
+
+	// Register RPC handlers with server
+	if err := webRPC.RegisterService(web, "Web"); err != nil {
+		return err
+	}
+
+	// RPC handler at URI - /minio/webrpc
+	webBrowserRouter.Methods("POST").Path("/webrpc").Handler(webRPC)
+	webBrowserRouter.Methods("PUT").Path("/upload/{bucket}/{object:.+}").HandlerFunc(httpTraceHdrs(web.Upload))
+
+	// These methods use short-expiry tokens in the URLs. These tokens may unintentionally
+	// be logged, so a new one must be generated for each request.
+	webBrowserRouter.Methods("GET").Path("/download/{bucket}/{object:.+}").Queries("token", "{token:.*}").HandlerFunc(httpTraceHdrs(web.Download))
+	webBrowserRouter.Methods("POST").Path("/zip").Queries("token", "{token:.*}").HandlerFunc(httpTraceHdrs(web.DownloadZip))
+
+	// Create compressed assets handler
+	compressAssets := handlers.CompressHandler(http.StripPrefix(minioReservedBucketPath, http.FileServer(assetFS())))
+
+	// Serve javascript files and favicon from assets.
+	webBrowserRouter.Path(fmt.Sprintf("/{assets:%s}", specialAssets)).Handler(compressAssets)
+
+	// Serve index.html from assets for rest of the requests.
+	webBrowserRouter.Path("/{index:.*}").Handler(indexHandler{compressAssets})
+
+	return nil
+}