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minio/pkg/webapi/minioapi/minioapi.go

228 lines
5.7 KiB

/*
* Mini Object Storage, (C) 2014 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 (
"bytes"
"encoding/json"
"encoding/xml"
"log"
"net/http"
"time"
"github.com/gorilla/mux"
mstorage "github.com/minio-io/minio/pkg/storage"
)
type minioApi struct {
storage mstorage.Storage
}
type encoder interface {
Encode(v interface{}) error
}
func HttpHandler(storage mstorage.Storage) http.Handler {
mux := mux.NewRouter()
api := minioApi{
storage: storage,
}
mux.HandleFunc("/", api.listBucketsHandler).Methods("GET")
mux.HandleFunc("/{bucket}", api.putBucketHandler).Methods("PUT")
mux.HandleFunc("/{bucket}", api.listObjectsHandler).Methods("GET")
mux.HandleFunc("/{bucket}/", api.listObjectsHandler).Methods("GET")
mux.HandleFunc("/{bucket}/{object:.*}", api.getObjectHandler).Methods("GET")
mux.HandleFunc("/{bucket}/{object:.*}", api.putObjectHandler).Methods("PUT")
return mux
}
func (server *minioApi) getObjectHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
metadata := server.storage.GetObjectMetadata(bucket, object)
lastModifiedTime := time.Unix(metadata.SecCreated, 0)
lastModified := lastModifiedTime.Format(time.RFC1123)
w.Header().Set("ETag", metadata.ETag)
w.Header().Set("Last-Modified", lastModified)
_, err := server.storage.CopyObjectToWriter(w, bucket, object)
switch err := err.(type) {
case nil: // success
{
log.Println("Found: " + bucket + "#" + object)
}
case mstorage.ObjectNotFound:
{
log.Println(err)
w.WriteHeader(http.StatusNotFound)
}
default:
{
log.Println(err)
w.WriteHeader(http.StatusInternalServerError)
}
}
}
func (server *minioApi) listBucketsHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
prefix, ok := vars["prefix"]
if ok == false {
prefix = ""
}
contentType := "xml"
if req.Header["Accept"][0] == "application/json" {
contentType = "json"
}
buckets := server.storage.ListBuckets(prefix)
response := generateBucketsListResult(buckets)
var bytesBuffer bytes.Buffer
var encoder encoder
if contentType == "json" {
w.Header().Set("Content-Type", "application/json")
encoder = json.NewEncoder(&bytesBuffer)
} else {
w.Header().Set("Content-Type", "application/xml")
encoder = xml.NewEncoder(&bytesBuffer)
}
encoder.Encode(response)
w.Write(bytesBuffer.Bytes())
}
func (server *minioApi) listObjectsHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
//delimiter, ok := vars["delimiter"]
//encodingType, ok := vars["encoding-type"]
//marker, ok := vars["marker"]
//maxKeys, ok := vars["max-keys"]
bucket := vars["bucket"]
//bucket, ok := vars["bucket"]
//if ok == false {
// w.WriteHeader(http.StatusBadRequest)
// return
//}
prefix, ok := vars["prefix"]
if ok == false {
prefix = ""
}
contentType := "xml"
if req.Header["Accept"][0] == "application/json" {
contentType = "json"
}
objects := server.storage.ListObjects(bucket, prefix, 1000)
response := generateObjectsListResult(bucket, objects)
var bytesBuffer bytes.Buffer
var encoder encoder
if contentType == "json" {
w.Header().Set("Content-Type", "application/json")
encoder = json.NewEncoder(&bytesBuffer)
} else {
w.Header().Set("Content-Type", "application/xml")
encoder = xml.NewEncoder(&bytesBuffer)
}
encoder.Encode(response)
w.Write(bytesBuffer.Bytes())
}
func (server *minioApi) putObjectHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
err := server.storage.StoreObject(bucket, object, req.Body)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(err.Error()))
return
}
}
func (server *minioApi) putBucketHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
err := server.storage.StoreBucket(bucket)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(err.Error()))
return
}
}
func generateBucketsListResult(buckets []mstorage.BucketMetadata) (data BucketListResponse) {
listbuckets := []Bucket{}
owner := Owner{
ID: "minio",
DisplayName: "minio",
}
for _, bucket := range buckets {
listbucket := Bucket{
Name: bucket.Name,
CreationDate: formatDate(bucket.Created),
}
listbuckets = append(listbuckets, listbucket)
}
data = BucketListResponse{
Owner: owner,
Buckets: listbuckets,
}
return
}
func generateObjectsListResult(bucket string, objects []mstorage.ObjectMetadata) (data ObjectListResponse) {
contents := []Content{}
owner := Owner{
ID: "minio",
DisplayName: "minio",
}
for _, object := range objects {
content := Content{
Key: object.Key,
LastModified: formatDate(object.SecCreated),
ETag: object.ETag,
Size: object.Size,
StorageClass: "STANDARD",
Owner: owner,
}
contents = append(contents, content)
}
data = ObjectListResponse{
Name: bucket,
Contents: contents,
MaxKeys: len(objects),
IsTruncated: false,
}
return
}
func formatDate(sec int64) string {
timeStamp := time.Unix(sec, 0)
return timeStamp.Format("2006-01-02T15:04:05.000Z")
}