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minio/pkg/api/api_response.go

122 lines
3.5 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"
"sort"
"github.com/minio-io/minio/pkg/storage/drivers"
)
// Reply date format
const (
iso8601Format = "2006-01-02T15:04:05.000Z"
)
// takes an array of Bucketmetadata information for serialization
// input:
// array of bucket metadata
//
// output:
// populated struct that can be serialized to match xml and json api spec output
func generateBucketsListResult(buckets []drivers.BucketMetadata) BucketListResponse {
var listbuckets []*Bucket
var data = BucketListResponse{}
var owner = Owner{}
owner.ID = "minio"
owner.DisplayName = "minio"
for _, bucket := range buckets {
var listbucket = &Bucket{}
listbucket.Name = bucket.Name
listbucket.CreationDate = bucket.Created.Format(iso8601Format)
listbuckets = append(listbuckets, listbucket)
}
data.Owner = owner
data.Buckets.Bucket = listbuckets
return data
}
// itemKey
type itemKey []*Item
func (b itemKey) Len() int { return len(b) }
func (b itemKey) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b itemKey) Less(i, j int) bool { return b[i].Key < b[j].Key }
// takes a set of objects and prepares the objects for serialization
// input:
// bucket name
// array of object metadata
// results truncated flag
//
// output:
// populated struct that can be serialized to match xml and json api spec output
func generateObjectsListResult(bucket string, objects []drivers.ObjectMetadata, bucketResources drivers.BucketResourcesMetadata) ObjectListResponse {
var contents []*Item
var prefixes []*Prefix
var owner = Owner{}
var data = ObjectListResponse{}
owner.ID = "minio"
owner.DisplayName = "minio"
for _, object := range objects {
var content = &Item{}
if object.Key == "" {
continue
}
content.Key = object.Key
content.LastModified = object.Created.Format(iso8601Format)
content.ETag = object.Md5
content.Size = object.Size
content.StorageClass = "STANDARD"
content.Owner = owner
contents = append(contents, content)
}
sort.Sort(itemKey(contents))
data.Name = bucket
data.Contents = contents
data.MaxKeys = bucketResources.Maxkeys
data.Prefix = bucketResources.Prefix
data.Delimiter = bucketResources.Delimiter
data.Marker = bucketResources.Marker
data.IsTruncated = bucketResources.IsTruncated
for _, prefix := range bucketResources.CommonPrefixes {
var prefixItem = &Prefix{}
prefixItem.Prefix = prefix
prefixes = append(prefixes, prefixItem)
}
data.CommonPrefixes = prefixes
return data
}
func writeErrorResponse(w http.ResponseWriter, req *http.Request, errorType int, acceptsContentType contentType, resource string) {
error := getErrorCode(errorType)
errorResponse := getErrorResponse(error, resource)
// set headers
setCommonHeaders(w, getContentTypeString(acceptsContentType))
w.WriteHeader(error.HTTPStatusCode)
// write body
encodedErrorResponse := encodeErrorResponse(errorResponse, acceptsContentType)
w.Write(encodedErrorResponse)
}