closes #2496 and #2552

Update Azure SDK with release v16.2.1
Update Azure autorest SDK with release v10.8.1

Signed-off-by: Yu Wang <yuwa@microsoft.com>

vendor/github.com/Azure/azure-sdk-for-go/storage/blobserviceclient.go

@@ -1,9 +1,26 @@
 package storage
 
+// Copyright 2017 Microsoft Corporation
+//
+//  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.
+
 import (
+	"encoding/xml"
 	"fmt"
 	"net/http"
 	"net/url"
+	"strconv"
+	"strings"
 )
 
 // BlobStorageClient contains operations for Microsoft Azure Blob Storage
@@ -38,13 +55,28 @@ type ListContainersParameters struct {
 }
 
 // GetContainerReference returns a Container object for the specified container name.
-func (b BlobStorageClient) GetContainerReference(name string) Container {
-	return Container{
-		bsc:  &b,
+func (b *BlobStorageClient) GetContainerReference(name string) *Container {
+	return &Container{
+		bsc:  b,
 		Name: name,
 	}
 }
 
+// GetContainerReferenceFromSASURI returns a Container object for the specified
+// container SASURI
+func GetContainerReferenceFromSASURI(sasuri url.URL) (*Container, error) {
+	path := strings.Split(sasuri.Path, "/")
+	if len(path) <= 1 {
+		return nil, fmt.Errorf("could not find a container in URI: %s", sasuri.String())
+	}
+	cli := newSASClient().GetBlobService()
+	return &Container{
+		bsc:    &cli,
+		Name:   path[1],
+		sasuri: sasuri,
+	}, nil
+}
+
 // ListContainers returns the list of containers in a storage account along with
 // pagination token and other response details.
 //
@@ -54,18 +86,53 @@ func (b BlobStorageClient) ListContainers(params ListContainersParameters) (*Con
 	uri := b.client.getEndpoint(blobServiceName, "", q)
 	headers := b.client.getStandardHeaders()
 
-	var out ContainerListResponse
+	type ContainerAlias struct {
+		bsc        *BlobStorageClient
+		Name       string              `xml:"Name"`
+		Properties ContainerProperties `xml:"Properties"`
+		Metadata   BlobMetadata
+		sasuri     url.URL
+	}
+	type ContainerListResponseAlias struct {
+		XMLName    xml.Name         `xml:"EnumerationResults"`
+		Xmlns      string           `xml:"xmlns,attr"`
+		Prefix     string           `xml:"Prefix"`
+		Marker     string           `xml:"Marker"`
+		NextMarker string           `xml:"NextMarker"`
+		MaxResults int64            `xml:"MaxResults"`
+		Containers []ContainerAlias `xml:"Containers>Container"`
+	}
+
+	var outAlias ContainerListResponseAlias
 	resp, err := b.client.exec(http.MethodGet, uri, headers, nil, b.auth)
 	if err != nil {
 		return nil, err
 	}
-	defer resp.body.Close()
-	err = xmlUnmarshal(resp.body, &out)
-
-	// assign our client to the newly created Container objects
-	for i := range out.Containers {
-		out.Containers[i].bsc = &b
+	defer resp.Body.Close()
+	err = xmlUnmarshal(resp.Body, &outAlias)
+	if err != nil {
+		return nil, err
 	}
+
+	out := ContainerListResponse{
+		XMLName:    outAlias.XMLName,
+		Xmlns:      outAlias.Xmlns,
+		Prefix:     outAlias.Prefix,
+		Marker:     outAlias.Marker,
+		NextMarker: outAlias.NextMarker,
+		MaxResults: outAlias.MaxResults,
+		Containers: make([]Container, len(outAlias.Containers)),
+	}
+	for i, cnt := range outAlias.Containers {
+		out.Containers[i] = Container{
+			bsc:        &b,
+			Name:       cnt.Name,
+			Properties: cnt.Properties,
+			Metadata:   map[string]string(cnt.Metadata),
+			sasuri:     cnt.sasuri,
+		}
+	}
+
 	return &out, err
 }
 
@@ -82,11 +149,34 @@ func (p ListContainersParameters) getParameters() url.Values {
 		out.Set("include", p.Include)
 	}
 	if p.MaxResults != 0 {
-		out.Set("maxresults", fmt.Sprintf("%v", p.MaxResults))
+		out.Set("maxresults", strconv.FormatUint(uint64(p.MaxResults), 10))
 	}
 	if p.Timeout != 0 {
-		out.Set("timeout", fmt.Sprintf("%v", p.Timeout))
+		out.Set("timeout", strconv.FormatUint(uint64(p.Timeout), 10))
 	}
 
 	return out
 }
+
+func writeMetadata(h http.Header) map[string]string {
+	metadata := make(map[string]string)
+	for k, v := range h {
+		// Can't trust CanonicalHeaderKey() to munge case
+		// reliably. "_" is allowed in identifiers:
+		// https://msdn.microsoft.com/en-us/library/azure/dd179414.aspx
+		// https://msdn.microsoft.com/library/aa664670(VS.71).aspx
+		// http://tools.ietf.org/html/rfc7230#section-3.2
+		// ...but "_" is considered invalid by
+		// CanonicalMIMEHeaderKey in
+		// https://golang.org/src/net/textproto/reader.go?s=14615:14659#L542
+		// so k can be "X-Ms-Meta-Lol" or "x-ms-meta-lol_rofl".
+		k = strings.ToLower(k)
+		if len(v) == 0 || !strings.HasPrefix(k, strings.ToLower(userDefinedMetadataHeaderPrefix)) {
+			continue
+		}
+		// metadata["lol"] = content of the last X-Ms-Meta-Lol header
+		k = k[len(userDefinedMetadataHeaderPrefix):]
+		metadata[k] = v[len(v)-1]
+	}
+	return metadata
+}