Restructure minio api, move signature checks from utils to Api.

pkg/api/api_response.go

@@ -0,0 +1,113 @@
+/*
+ * 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 api
+
+import (
+	"sort"
+
+	mstorage "github.com/minio-io/minio/pkg/storage"
+)
+
+// 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 []mstorage.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
+}
+
+type itemKey []*Item
+
+// Len
+func (b itemKey) Len() int { return len(b) }
+
+// Swap
+func (b itemKey) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
+
+// Less
+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 []mstorage.ObjectMetadata, bucketResources mstorage.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
+}