Fix: permit trailing slash for compatible with S3.

ex.
s3cmd requests to path:`/<bucket>/` for PutBucket.

routers.go

@@ -32,25 +32,29 @@ type CloudStorageAPI struct {
 
 // registerCloudStorageAPI - register all the handlers to their respective paths
 func registerCloudStorageAPI(mux *router.Router, a CloudStorageAPI) {
-	mux.HandleFunc("/", a.ListBucketsHandler).Methods("GET")
+	root := mux.NewRoute().PathPrefix("/").Subrouter()
-	mux.HandleFunc("/{bucket}", a.GetBucketACLHandler).Queries("acl", "").Methods("GET")
+	bucket := root.PathPrefix("/{bucket}").Subrouter()
-	mux.HandleFunc("/{bucket}", a.ListMultipartUploadsHandler).Queries("uploads", "").Methods("GET")
-	mux.HandleFunc("/{bucket}", a.ListObjectsHandler).Methods("GET")
-	mux.HandleFunc("/{bucket}", a.PutBucketACLHandler).Queries("acl", "").Methods("PUT")
-	mux.HandleFunc("/{bucket}", a.PutBucketHandler).Methods("PUT")
-	mux.HandleFunc("/{bucket}", a.HeadBucketHandler).Methods("HEAD")
-	mux.HandleFunc("/{bucket}", a.PostPolicyBucketHandler).Methods("POST")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.HeadObjectHandler).Methods("HEAD")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.PutObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}").Methods("PUT")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.ListObjectPartsHandler).Queries("uploadId", "{uploadId:.*}").Methods("GET")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.CompleteMultipartUploadHandler).Queries("uploadId", "{uploadId:.*}").Methods("POST")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.NewMultipartUploadHandler).Queries("uploads", "").Methods("POST")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.AbortMultipartUploadHandler).Queries("uploadId", "{uploadId:.*}").Methods("DELETE")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.GetObjectHandler).Methods("GET")
-	mux.HandleFunc("/{bucket}/{object:.*}", a.PutObjectHandler).Methods("PUT")
 
-	mux.HandleFunc("/{bucket}", a.DeleteBucketHandler).Methods("DELETE")
+	bucket.Methods("HEAD").Path("/{object:.+}").HandlerFunc(a.HeadObjectHandler)
-	mux.HandleFunc("/{bucket}/{object:.*}", a.DeleteObjectHandler).Methods("DELETE")
+	bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(a.PutObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
+	bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(a.ListObjectPartsHandler).Queries("uploadId", "{uploadId:.*}")
+	bucket.Methods("POST").Path("/{object:.+}").HandlerFunc(a.CompleteMultipartUploadHandler).Queries("uploadId", "{uploadId:.*}")
+	bucket.Methods("POST").Path("/{object:.+}").HandlerFunc(a.NewMultipartUploadHandler).Queries("uploads", "")
+	bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(a.AbortMultipartUploadHandler).Queries("uploadId", "{uploadId:.*}")
+	bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(a.GetObjectHandler)
+	bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(a.PutObjectHandler)
+	bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(a.DeleteObjectHandler)
+
+	bucket.Methods("GET").HandlerFunc(a.GetBucketACLHandler).Queries("acl", "")
+	bucket.Methods("GET").HandlerFunc(a.ListMultipartUploadsHandler).Queries("uploads", "")
+	bucket.Methods("GET").HandlerFunc(a.ListObjectsHandler)
+	bucket.Methods("PUT").HandlerFunc(a.PutBucketACLHandler).Queries("acl", "")
+	bucket.Methods("PUT").HandlerFunc(a.PutBucketHandler)
+	bucket.Methods("HEAD").HandlerFunc(a.HeadBucketHandler)
+	bucket.Methods("POST").HandlerFunc(a.PostPolicyBucketHandler)
+	bucket.Methods("DELETE").HandlerFunc(a.DeleteBucketHandler)
+
+	root.Methods("GET").HandlerFunc(a.ListBucketsHandler)
 }
 
 // getNewCloudStorageAPI instantiate a new CloudStorageAPI

server_fs_test.go

@@ -524,6 +524,15 @@ func (s *MyAPIFSCacheSuite) TestPutBucket(c *C) {
 	response, err := client.Do(request)
 	c.Assert(err, IsNil)
 	c.Assert(response.StatusCode, Equals, http.StatusOK)
+
+	request, err = s.newRequest("PUT", testAPIFSCacheServer.URL+"/put-bucket-slash/", 0, nil)
+	c.Assert(err, IsNil)
+	request.Header.Add("x-amz-acl", "private")
+
+	client = http.Client{}
+	response, err = client.Do(request)
+	c.Assert(err, IsNil)
+	c.Assert(response.StatusCode, Equals, http.StatusOK)
 }
 
 func (s *MyAPIFSCacheSuite) TestPutObject(c *C) {