rclone/vendor/github.com/Azure/azure-storage-blob-go/azblob/url_service.go
2018-10-25 17:06:33 +01:00

134 lines
5.1 KiB
Go

package azblob
import (
"context"
"net/url"
"strings"
"github.com/Azure/azure-pipeline-go/pipeline"
)
const (
// ContainerNameRoot is the special Azure Storage name used to identify a storage account's root container.
ContainerNameRoot = "$root"
// ContainerNameLogs is the special Azure Storage name used to identify a storage account's logs container.
ContainerNameLogs = "$logs"
)
// A ServiceURL represents a URL to the Azure Storage Blob service allowing you to manipulate blob containers.
type ServiceURL struct {
client serviceClient
}
// NewServiceURL creates a ServiceURL object using the specified URL and request policy pipeline.
func NewServiceURL(primaryURL url.URL, p pipeline.Pipeline) ServiceURL {
client := newServiceClient(primaryURL, p)
return ServiceURL{client: client}
}
// URL returns the URL endpoint used by the ServiceURL object.
func (s ServiceURL) URL() url.URL {
return s.client.URL()
}
// String returns the URL as a string.
func (s ServiceURL) String() string {
u := s.URL()
return u.String()
}
// WithPipeline creates a new ServiceURL object identical to the source but with the specified request policy pipeline.
func (s ServiceURL) WithPipeline(p pipeline.Pipeline) ServiceURL {
return NewServiceURL(s.URL(), p)
}
// NewContainerURL creates a new ContainerURL object by concatenating containerName to the end of
// ServiceURL's URL. The new ContainerURL uses the same request policy pipeline as the ServiceURL.
// To change the pipeline, create the ContainerURL and then call its WithPipeline method passing in the
// desired pipeline object. Or, call this package's NewContainerURL instead of calling this object's
// NewContainerURL method.
func (s ServiceURL) NewContainerURL(containerName string) ContainerURL {
containerURL := appendToURLPath(s.URL(), containerName)
return NewContainerURL(containerURL, s.client.Pipeline())
}
// appendToURLPath appends a string to the end of a URL's path (prefixing the string with a '/' if required)
func appendToURLPath(u url.URL, name string) url.URL {
// e.g. "https://ms.com/a/b/?k1=v1&k2=v2#f"
// When you call url.Parse() this is what you'll get:
// Scheme: "https"
// Opaque: ""
// User: nil
// Host: "ms.com"
// Path: "/a/b/" This should start with a / and it might or might not have a trailing slash
// RawPath: ""
// ForceQuery: false
// RawQuery: "k1=v1&k2=v2"
// Fragment: "f"
if len(u.Path) == 0 || u.Path[len(u.Path)-1] != '/' {
u.Path += "/" // Append "/" to end before appending name
}
u.Path += name
return u
}
// ListContainersFlatSegment returns a single segment of containers starting from the specified Marker. Use an empty
// Marker to start enumeration from the beginning. Container names are returned in lexicographic order.
// After getting a segment, process it, and then call ListContainersFlatSegment again (passing the the
// previously-returned Marker) to get the next segment. For more information, see
// https://docs.microsoft.com/rest/api/storageservices/list-containers2.
func (s ServiceURL) ListContainersSegment(ctx context.Context, marker Marker, o ListContainersSegmentOptions) (*ListContainersSegmentResponse, error) {
prefix, include, maxResults := o.pointers()
return s.client.ListContainersSegment(ctx, prefix, marker.val, maxResults, include, nil, nil)
}
// ListContainersOptions defines options available when calling ListContainers.
type ListContainersSegmentOptions struct {
Detail ListContainersDetail // No IncludeType header is produced if ""
Prefix string // No Prefix header is produced if ""
MaxResults int32 // 0 means unspecified
// TODO: update swagger to generate this type?
}
func (o *ListContainersSegmentOptions) pointers() (prefix *string, include ListContainersIncludeType, maxResults *int32) {
if o.Prefix != "" {
prefix = &o.Prefix
}
if o.MaxResults != 0 {
maxResults = &o.MaxResults
}
include = ListContainersIncludeType(o.Detail.string())
return
}
// ListContainersFlatDetail indicates what additional information the service should return with each container.
type ListContainersDetail struct {
// Tells the service whether to return metadata for each container.
Metadata bool
}
// string produces the Include query parameter's value.
func (d *ListContainersDetail) string() string {
items := make([]string, 0, 1)
// NOTE: Multiple strings MUST be appended in alphabetic order or signing the string for authentication fails!
if d.Metadata {
items = append(items, string(ListContainersIncludeMetadata))
}
if len(items) > 0 {
return strings.Join(items, ",")
}
return string(ListContainersIncludeNone)
}
func (bsu ServiceURL) GetProperties(ctx context.Context) (*StorageServiceProperties, error) {
return bsu.client.GetProperties(ctx, nil, nil)
}
func (bsu ServiceURL) SetProperties(ctx context.Context, properties StorageServiceProperties) (*ServiceSetPropertiesResponse, error) {
return bsu.client.SetProperties(ctx, properties, nil, nil)
}
func (bsu ServiceURL) GetStatistics(ctx context.Context) (*StorageServiceStats, error) {
return bsu.client.GetStatistics(ctx, nil, nil)
}