/// <summary>
/// Converts the permissions specified for the shared access policy to a string.
/// </summary>
/// <param name="permissions">The shared access permissions.</param>
/// <returns>The shared access permissions in string format.</returns>
public static string PermissionsToString(SharedAccessPermissions permissions)
{
// The service supports a fixed order => rwdl
StringBuilder builder = new StringBuilder();
if ((permissions & SharedAccessPermissions.Read) == SharedAccessPermissions.Read)
{
builder.Append("r");
}
if ((permissions & SharedAccessPermissions.Write) == SharedAccessPermissions.Write)
{
builder.Append("w");
}
if ((permissions & SharedAccessPermissions.Delete) == SharedAccessPermissions.Delete)
{
builder.Append("d");
}
if ((permissions & SharedAccessPermissions.List) == SharedAccessPermissions.List)
{
builder.Append("l");
}
return(builder.ToString());
}
/// <summary>
/// Converts the permissions specified for the shared access policy to a string.
/// </summary>
/// <param name="permissions">The shared access permissions.</param>
/// <returns>The shared access permissions in string format.</returns>
public static string PermissionsToString(SharedAccessPermissions permissions)
{
// The service supports a fixed order => rwdl
StringBuilder builder = new StringBuilder();
if ((permissions & SharedAccessPermissions.Read) == SharedAccessPermissions.Read)
{
builder.Append("r");
}
if ((permissions & SharedAccessPermissions.Write) == SharedAccessPermissions.Write)
{
builder.Append("w");
}
if ((permissions & SharedAccessPermissions.Delete) == SharedAccessPermissions.Delete)
{
builder.Append("d");
}
if ((permissions & SharedAccessPermissions.List) == SharedAccessPermissions.List)
{
builder.Append("l");
}
return builder.ToString();
}
public override string GenerateSAS(SharedAccessPermissions sap, int validatePeriod, string policySignedIdentifier = null)
{
if (null == policySignedIdentifier)
{
if (this.SourceOrDest == SourceOrDest.Dest)
{
this.fileHelper.CreateShare(this.shareName);
}
return(this.fileHelper.GetSASofShare(this.shareName, sap.ToFilePermissions(), validatePeriod, false));
}
else
{
this.fileHelper.CreateShare(this.shareName);
return(this.fileHelper.GetSASofShare(this.shareName, sap.ToFilePermissions(), validatePeriod, true, policySignedIdentifier));
}
}
/// <summary>
/// Constructs a <see cref="SharedAccessPermissions"/> object from a permissions string.
/// </summary>
/// <param name="value">The shared access permissions in string format.</param>
/// <returns>A set of shared access permissions.</returns>
public static SharedAccessPermissions PermissionsFromString(string value)
{
char[] chars = value.ToCharArray();
SharedAccessPermissions permissions = 0;
foreach (char c in chars)
{
switch (c)
{
case 'r':
permissions |= SharedAccessPermissions.Read;
break;
case 'w':
permissions |= SharedAccessPermissions.Write;
break;
case 'd':
permissions |= SharedAccessPermissions.Delete;
break;
case 'l':
permissions |= SharedAccessPermissions.List;
break;
default:
CommonUtils.ArgumentOutOfRange("value", value);
break;
}
}
// Incase we ever change none to be something other than 0
if (permissions == 0)
{
permissions |= SharedAccessPermissions.None;
}
return(permissions);
}
internal static SharedAccessBlobPermissions FromGenericToAzure(SharedAccessPermissions permissions)
{
var result = SharedAccessBlobPermissions.None;
if (permissions.HasFlag(SharedAccessPermissions.Add))
{
result |= SharedAccessBlobPermissions.Add;
}
if (permissions.HasFlag(SharedAccessPermissions.Create))
{
result |= SharedAccessBlobPermissions.Create;
}
if (permissions.HasFlag(SharedAccessPermissions.Delete))
{
result |= SharedAccessBlobPermissions.Delete;
}
if (permissions.HasFlag(SharedAccessPermissions.List))
{
result |= SharedAccessBlobPermissions.List;
}
if (permissions.HasFlag(SharedAccessPermissions.Read))
{
result |= SharedAccessBlobPermissions.Read;
}
if (permissions.HasFlag(SharedAccessPermissions.Write))
{
result |= SharedAccessBlobPermissions.Write;
}
return(result);
}
/// <summary>
/// Creates a shared access signature for a specific blob
/// </summary>
public String CreateSharedSignature(String resource, SharedAccessPermissions permissions)
{
var blob = container.GetBlobReference(resource);
return blob.GetSharedAccessSignature(new SharedAccessPolicy()
{
SharedAccessStartTime = DateTime.Now,
SharedAccessExpiryTime = DateTime.Now.AddMinutes(30),
Permissions = permissions
});
}
/// <summary>
/// Creates a shared access signature for the files container
/// </summary>
public String CreateSharedSignature(SharedAccessPermissions permissions)
{
return container.GetSharedAccessSignature(new SharedAccessPolicy()
{
SharedAccessStartTime = DateTime.Now,
SharedAccessExpiryTime = DateTime.Now.AddMinutes(30),
Permissions = permissions
});
}
public abstract string GenerateSAS(SharedAccessPermissions sap, int validatePeriod, string policySignedIdentifier = null);
public override string GenerateSAS(SharedAccessPermissions sap, int validatePeriod, string policySignedIdentifier = null)
{
throw new NotSupportedException("GenerateSAS is not supported in LocalDataAdaptorBase.");
}
public static SharedAccessFilePermissions ToFilePermissions(this SharedAccessPermissions sap)
{
return((SharedAccessFilePermissions)Enum.Parse(typeof(SharedAccessFilePermissions), sap.ToString()));
}
public string GenerateSharedAccessSignature(string containerName, string blobName,
bool read, bool write, bool delete, bool list, DateTime startTime, DateTime endTime)
{
CloudBlobClient client = CloudStorageAccount.CreateCloudBlobClient();
client.RetryPolicy = RetryPolicies.Retry(20, TimeSpan.Zero);
CloudBlobContainer container = client.GetContainerReference(containerName);
string path;
if (string.IsNullOrEmpty(blobName))
{
path = container.Attributes.Uri.AbsoluteUri;
}
else
{
CloudBlob blob = container.GetBlobReference(blobName);
path = blob.Attributes.Uri.AbsoluteUri;
}
SharedAccessPermissions permissions = new SharedAccessPermissions();
if (read) permissions |= SharedAccessPermissions.Read;
if (write) permissions |= SharedAccessPermissions.Write;
if (delete) permissions |= SharedAccessPermissions.Delete;
if (list) permissions |= SharedAccessPermissions.List;
SharedAccessPolicy policy = new SharedAccessPolicy()
{
Permissions = permissions,
SharedAccessStartTime = startTime,
SharedAccessExpiryTime = endTime
};
string queryString = container.GetSharedAccessSignature(policy);
return path + queryString;
}
