private static async Task MoveMaliciousBlobAsync()

in Workflow automation/Move Malicious Blob FunctionApp Defender for Storage/MoveMaliciousBlobEventTrigger.cs [83:113]

28 lines of code
3 McCabe index (conditional complexity)


        private static async Task MoveMaliciousBlobAsync(Uri blobUri, ETag blobETag, ILogger log)

        {
            var blobUriBuilder = new BlobUriBuilder(blobUri);
            if (blobUriBuilder.BlobContainerName == MalwareContainer)
            {
                log.LogInformation("blob {0} is already in {1} container, skipping", blobUriBuilder.BlobName, MalwareContainer);
                return;
            }
            var destContainerUri = new Uri($"https://{blobUriBuilder.Host}/{MalwareContainer}");
            var defaultAzureCredential = new DefaultAzureCredential();
            var srcBlobClient = new BlobClient(blobUri, defaultAzureCredential);
            var destContainerClient = new BlobContainerClient(destContainerUri, defaultAzureCredential);
            log.LogInformation("Creating {0} container if it doesn't exist", MalwareContainer);
            await destContainerClient.CreateIfNotExistsAsync();
            var destBlobClient = destContainerClient.GetBlobClient(blobUriBuilder.BlobName);

            if (!await srcBlobClient.ExistsAsync())
            {
                log.LogError("blob {0} doesn't exist", blobUri);
                return;
            }

            log.LogInformation("MoveBlob: Copying blob to {0}", destBlobClient.Uri);
            var copyConditions = new BlobRequestConditions { IfMatch = blobETag };
            var copyFromUriOperation = await destBlobClient.StartCopyFromUriAsync(srcBlobClient.Uri, sourceConditions: copyConditions);
            await copyFromUriOperation.WaitForCompletionAsync();
            log.LogInformation("MoveBlob: Deleting source blob {0}", srcBlobClient.Uri);
            await srcBlobClient.DeleteAsync();
            log.LogInformation("MoveBlob: blob moved successfully");
        }