Microsoft.Azure.Commands.Compute.SetAzureVMCustomScriptExtensionCommand.GetSasUrlStr C# (CSharp) Method

        protected string GetSasUrlStr(string storageName, string storageKey, string containerName, string blobName)
        {
            var storageClient = AzureSession.ClientFactory.CreateArmClient<StorageManagementClient>(DefaultProfile.Context,
                        AzureEnvironment.Endpoint.ResourceManager);
            var cred = new StorageCredentials(storageName, storageKey);
            var storageAccount = string.IsNullOrEmpty(this.StorageEndpointSuffix)
                               ? new CloudStorageAccount(cred, true)
                               : new CloudStorageAccount(cred, this.StorageEndpointSuffix, true);

            var blobClient = storageAccount.CreateCloudBlobClient();
            var container = blobClient.GetContainerReference(containerName);
            var cloudBlob = container.GetBlockBlobReference(blobName);
            var sasToken = cloudBlob.GetSharedAccessSignature(
                new SharedAccessBlobPolicy()
                {
                    SharedAccessExpiryTime = DateTime.UtcNow.AddHours(24.0),
                    Permissions = SharedAccessBlobPermissions.Read
                });

            // Try not to use a Uri object in order to keep the following
            // special characters in the SAS signature section:
            //     '+'   ->   '%2B'
            //     '/'   ->   '%2F'
            //     '='   ->   '%3D'
            return cloudBlob.Uri + sasToken;
        }