minio/pkg/api/minioapi/handler.go
2015-02-15 01:59:48 -08:00

117 lines
3.2 KiB
Go

/*
* Mini Object Storage, (C) 2015 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 minioapi
import (
"net/http"
"strings"
"github.com/minio-io/minio/pkg/utils/config"
"github.com/minio-io/minio/pkg/utils/crypto/signers"
)
type vHandler struct {
conf config.Config
handler http.Handler
}
// grab AccessKey from authorization header
func stripAccessKey(r *http.Request) string {
fields := strings.Fields(r.Header.Get("Authorization"))
if len(fields) < 2 {
return ""
}
splits := strings.Split(fields[1], ":")
if len(splits) < 2 {
return ""
}
return splits[0]
}
func validateHandler(conf config.Config, h http.Handler) http.Handler {
return vHandler{conf, h}
}
func (h vHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
accessKey := stripAccessKey(r)
acceptsContentType := getContentType(r)
if accessKey != "" {
if err := h.conf.ReadConfig(); err != nil {
error := errorCodeError(InternalError)
errorResponse := getErrorResponse(error, "")
w.WriteHeader(error.HttpStatusCode)
w.Write(writeErrorResponse(w, errorResponse, acceptsContentType))
} else {
user := h.conf.GetKey(accessKey)
ok, _ := signers.ValidateRequest(user, r)
if ok {
h.handler.ServeHTTP(w, r)
} else {
error := errorCodeError(AccessDenied)
errorResponse := getErrorResponse(error, "")
w.WriteHeader(error.HttpStatusCode)
w.Write(writeErrorResponse(w, errorResponse, acceptsContentType))
}
}
} else {
//No access key found, handle this more appropriately
//TODO: Remove this after adding tests to support signature
//request
h.handler.ServeHTTP(w, r)
//Add this line, to reply back for invalid requests
//w.WriteHeader(http.StatusUnauthorized)
//w.Write([]byte("Authorization header malformed")
}
}
func ignoreUnimplementedResources(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
acceptsContentType := getContentType(r)
if ignoreUnImplementedObjectResources(r) || ignoreUnImplementedBucketResources(r) {
error := errorCodeError(NotImplemented)
errorResponse := getErrorResponse(error, "")
w.WriteHeader(error.HttpStatusCode)
w.Write(writeErrorResponse(w, errorResponse, acceptsContentType))
} else {
h.ServeHTTP(w, r)
}
})
}
//// helpers
// Checks requests for unimplemented resources
func ignoreUnImplementedBucketResources(req *http.Request) bool {
q := req.URL.Query()
for name := range q {
if unimplementedBucketResourceNames[name] {
return true
}
}
return false
}
func ignoreUnImplementedObjectResources(req *http.Request) bool {
q := req.URL.Query()
for name := range q {
if unimplementedObjectResourceNames[name] {
return true
}
}
return false
}