Initial POC implementation of a user based WebDAV server

main.go

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+// Copyright (c) 2018, Andreas Schneider
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//     * Neither the name of the <organization> nor the
+//       names of its contributors may be used to endorse or promote products
+//       derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package main
+
+import (
+	"context"
+	"golang.org/x/net/webdav"
+	"log"
+	"net/http"
+)
+
+func main() {
+	h := &webdav.Handler{}
+	h.LockSystem = webdav.NewMemLS()
+	h.FileSystem = BaseDir("")
+
+	authenticatedWebdavHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		username, password, ok := r.BasicAuth()
+		if !ok || (username != "user1" && username != "user2") || password != "test" {
+			log.Println("invalid user pass", ok, username, password)
+			w.Header().Set("WWW-Authenticate", `Basic realm="ShareDAV"`)
+			http.Error(w, "unauthorized", http.StatusUnauthorized)
+			return
+		}
+
+		h.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), "dir", username)))
+	})
+
+	http.ListenAndServe(":3000", authenticatedWebdavHandler)
+}