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minio/pkg/api/api_bucket_handlers.go

152 lines
4.5 KiB

/*
* Minimalist 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 api
import (
"net/http"
"github.com/gorilla/mux"
"github.com/minio-io/iodine"
"github.com/minio-io/minio/pkg/utils/log"
"github.com/minio-io/objectdriver"
)
// GET Bucket (List Objects)
// -------------------------
// This implementation of the GET operation returns some or all (up to 1000)
// of the objects in a bucket. You can use the request parameters as selection
// criteria to return a subset of the objects in a bucket.
//
func (server *minioAPI) listObjectsHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
resources := getBucketResources(req.URL.Query())
if resources.Policy == true {
// TODO
// ----
// This is handled here instead of router, is only because semantically
// resource queries are not treated differently by Gorilla mux
//
// In-fact a request coming in as /bucket/?policy={} and /bucket/object are
// treated similarly. A proper fix would be to remove this comment and
// find a right regex pattern for individual requests
server.getBucketPolicyHandler(w, req)
return
}
if resources.Maxkeys == 0 {
resources.Maxkeys = maxObjectList
}
acceptsContentType := getContentType(req)
objects, resources, err := server.driver.ListObjects(bucket, resources)
switch err.(type) {
case nil: // success
{
// write headers
setCommonHeaders(w, getContentTypeString(acceptsContentType))
w.WriteHeader(http.StatusOK)
// write body
response := generateObjectsListResult(bucket, objects, resources)
encodedResponse := encodeResponse(response, acceptsContentType)
w.Write(encodedResponse)
}
case drivers.BucketNotFound:
{
writeErrorResponse(w, req, NoSuchBucket, acceptsContentType, req.URL.Path)
}
case drivers.BucketNameInvalid:
{
writeErrorResponse(w, req, InvalidBucketName, acceptsContentType, req.URL.Path)
}
case drivers.ObjectNameInvalid:
{
writeErrorResponse(w, req, NoSuchKey, acceptsContentType, req.URL.Path)
}
default:
{
log.Error.Println(iodine.New(err, nil))
writeErrorResponse(w, req, InternalError, acceptsContentType, req.URL.Path)
}
}
}
// GET Service
// -----------
// This implementation of the GET operation returns a list of all buckets
// owned by the authenticated sender of the request.
func (server *minioAPI) listBucketsHandler(w http.ResponseWriter, req *http.Request) {
acceptsContentType := getContentType(req)
buckets, err := server.driver.ListBuckets()
// cannot fallthrough in (type) switch :(
switch err := err.(type) {
case nil:
{
response := generateBucketsListResult(buckets)
// write headers
setCommonHeaders(w, getContentTypeString(acceptsContentType))
w.WriteHeader(http.StatusOK)
// write response
encodedResponse := encodeResponse(response, acceptsContentType)
w.Write(encodedResponse)
}
default:
{
log.Error.Println(iodine.New(err, nil))
writeErrorResponse(w, req, InternalError, acceptsContentType, req.URL.Path)
}
}
}
// PUT Bucket
// ----------
// This implementation of the PUT operation creates a new bucket for authenticated request
func (server *minioAPI) putBucketHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
err := server.driver.CreateBucket(bucket)
resources := getBucketResources(req.URL.Query())
if resources.Policy == true {
server.putBucketPolicyHandler(w, req)
return
}
acceptsContentType := getContentType(req)
switch err.(type) {
case nil:
{
w.Header().Set("Server", "Minio")
w.Header().Set("Connection", "close")
w.WriteHeader(http.StatusOK)
}
case drivers.BucketNameInvalid:
{
writeErrorResponse(w, req, InvalidBucketName, acceptsContentType, req.URL.Path)
}
case drivers.BucketExists:
{
writeErrorResponse(w, req, BucketAlreadyExists, acceptsContentType, req.URL.Path)
}
default:
{
log.Error.Println(iodine.New(err, nil))
writeErrorResponse(w, req, InternalError, acceptsContentType, req.URL.Path)
}
}
}