/// <summary>
/// Use an account's <see cref="StorageSharedKeyCredential"/> to sign this
/// shared access signature values to produce the proper SAS query
/// parameters for authenticating requests.
/// </summary>
/// <param name="sharedKeyCredential">
/// The storage account's <see cref="StorageSharedKeyCredential"/>.
/// </param>
/// <returns>
/// The <see cref="SasQueryParameters"/> used for authenticating requests.
/// </returns>
public SasQueryParameters ToSasQueryParameters(StorageSharedKeyCredential sharedKeyCredential)
{
sharedKeyCredential = sharedKeyCredential ?? throw Errors.ArgumentNull(nameof(sharedKeyCredential));
string resource;
if (String.IsNullOrEmpty(this.FilePath))
{
// Make sure the permission characters are in the correct order
this.Permissions = ShareSasPermissions.Parse(this.Permissions).ToString();
resource = Constants.Sas.Resource.Share;
}
else
{
// Make sure the permission characters are in the correct order
this.Permissions = FileSasPermissions.Parse(this.Permissions).ToString();
resource = Constants.Sas.Resource.File;
}
if (String.IsNullOrEmpty(this.Version))
{
this.Version = SasQueryParameters.DefaultSasVersion;
}
var startTime = SasQueryParameters.FormatTimesForSasSigning(this.StartTime);
var expiryTime = SasQueryParameters.FormatTimesForSasSigning(this.ExpiryTime);
// String to sign: http://msdn.microsoft.com/en-us/library/azure/dn140255.aspx
var stringToSign = String.Join("\n",
this.Permissions,
startTime,
expiryTime,
GetCanonicalName(sharedKeyCredential.AccountName, this.ShareName ?? String.Empty, this.FilePath ?? String.Empty),
this.Identifier,
this.IPRange.ToString(),
this.Protocol.ToString(),
this.Version,
this.CacheControl,
this.ContentDisposition,
this.ContentEncoding,
this.ContentLanguage,
this.ContentType);
var signature = sharedKeyCredential.ComputeHMACSHA256(stringToSign);
var p = new SasQueryParameters(
version: this.Version,
services: null,
resourceTypes: null,
protocol: this.Protocol,
startTime: this.StartTime,
expiryTime: this.ExpiryTime,
ipRange: this.IPRange,
identifier: this.Identifier,
resource: resource,
permissions: this.Permissions,
signature: signature);
return(p);
}
/// <summary>
/// Use an account's <see cref="StorageSharedKeyCredential"/> to sign this
/// shared access signature values to produce the proper SAS query
/// parameters for authenticating requests.
/// </summary>
/// <param name="sharedKeyCredential">
/// The storage account's <see cref="StorageSharedKeyCredential"/>.
/// </param>
/// <returns>
/// The <see cref="SasQueryParameters"/> used for authenticating requests.
/// </returns>
public SasQueryParameters ToSasQueryParameters(StorageSharedKeyCredential sharedKeyCredential)
{
sharedKeyCredential = sharedKeyCredential ?? throw Errors.ArgumentNull(nameof(sharedKeyCredential));
string resource;
if (string.IsNullOrEmpty(FilePath))
{
// Make sure the permission characters are in the correct order
Permissions = ShareSasPermissions.Parse(Permissions).ToString();
resource = Constants.Sas.Resource.Share;
}
else
{
// Make sure the permission characters are in the correct order
Permissions = FileSasPermissions.Parse(Permissions).ToString();
resource = Constants.Sas.Resource.File;
}
if (string.IsNullOrEmpty(Version))
{
Version = SasQueryParameters.DefaultSasVersion;
}
var startTime = SasQueryParameters.FormatTimesForSasSigning(StartsOn);
var expiryTime = SasQueryParameters.FormatTimesForSasSigning(ExpiresOn);
// String to sign: http://msdn.microsoft.com/en-us/library/azure/dn140255.aspx
var stringToSign = string.Join("\n",
Permissions,
startTime,
expiryTime,
GetCanonicalName(sharedKeyCredential.AccountName, ShareName ?? string.Empty, FilePath ?? string.Empty),
Identifier,
IPRange.ToString(),
Protocol.ToProtocolString(),
Version,
CacheControl,
ContentDisposition,
ContentEncoding,
ContentLanguage,
ContentType);
var signature = sharedKeyCredential.ComputeHMACSHA256(stringToSign);
var p = new SasQueryParameters(
version: Version,
services: default,
/// <summary>
/// Sets the permissions for a file SAS.
/// </summary>
/// <param name="permissions">
/// <see cref="FileSasPermissions"/> containing the allowed permissions.
/// </param>
public void SetPermissions(FileSasPermissions permissions)
{
Permissions = permissions.ToPermissionsString();
}
