public async static Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req, ILogger log)
{
try
{
log.LogInformation("C# HTTP trigger function starts process a request.");
log.LogInformation("Request is a " + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
string containerName = req.Query["containername"];
if (containerName == null)
{
string errorMessage = "No container name given!";
log.LogError(errorMessage);
return(new BadRequestObjectResult(errorMessage));
}
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(Cryptdrive.AzureLinkStringStorage.STORAGE_CONNECTION_STRING);
var client = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = BlobManager.getBlobContainer(containerName);
bool isFormType = req.HasFormContentType;
int numberOfDeletedFiles = 0;
var keys = req.Form.Keys;
foreach (var key in keys)
{
StringValues returns;
req.Form.TryGetValue(key, out returns);
log.LogInformation("Trying to delete " + returns);
log.LogInformation(" From key " + key);
bool deleted = await container.GetBlockBlobReference(returns).DeleteIfExistsAsync();
if (deleted)
{
numberOfDeletedFiles++;
}
}
return(new OkObjectResult(numberOfDeletedFiles + " files deleted from the cloud"));
}
catch (Exception e)
{
log.LogError(e.Message);
log.LogError(e.StackTrace);
return(new UnprocessableEntityObjectResult(e.Message));
}
}
public static async System.Threading.Tasks.Task <IActionResult> RunAsync([HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req, ILogger log)
{
try
{
log.LogInformation("C# HTTP trigger function processed a request.");
log.LogInformation("Request is a " + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
string containerName = req.Query["container"];
if (containerName == null)
{
string errorMessage = "No container name given!";
log.LogError(errorMessage);
return(new BadRequestObjectResult(errorMessage));
}
string filenameOld = req.Query["filenameOld"];
if (filenameOld == null)
{
string errorMessage = "No old file name given!";
log.LogError(errorMessage);
return(new BadRequestObjectResult(errorMessage));
}
string filenameNew = req.Query["filenameNew"];
if (filenameNew == null)
{
string errorMessage = "No new file name given!";
log.LogError(errorMessage);
return(new BadRequestObjectResult(errorMessage));
}
log.LogInformation("Got the names:" + filenameOld + "->" + filenameNew + " in " + containerName);
CloudBlobContainer container = BlobManager.getBlobContainer(containerName);
// Based on https://github.com/Azure-Samples/storage-blob-dotnet-getting-started/blob/master/BlobStorage/Advanced.cs function CopyBlockBlobAsync
var sourceBlob = container.GetBlockBlobReference(filenameOld);;
var destBlob = container.GetBlockBlobReference(filenameNew);
string leaseId = null;
log.LogInformation("Got the container references");
try
{
// Lease the source blob for the copy operation to prevent another client from modifying it.
// Specifying null for the lease interval creates an infinite lease.
leaseId = await sourceBlob.AcquireLeaseAsync(null);
// Ensure that the source blob exists.
if (await sourceBlob.ExistsAsync())
{
// Get the ID of the copy operation.
string copyId = await destBlob.StartCopyAsync(sourceBlob);
// Fetch the destination blob's properties before checking the copy state.
await destBlob.FetchAttributesAsync();
log.LogInformation("Status of copy operation: {0}", destBlob.CopyState.Status);
log.LogInformation("Completion time: {0}", destBlob.CopyState.CompletionTime);
log.LogInformation("Bytes copied: {0}", destBlob.CopyState.BytesCopied.ToString());
log.LogInformation("Total bytes: {0}", destBlob.CopyState.TotalBytes.ToString());
await releaseLease(sourceBlob);
log.LogInformation("Released the lease, now comes the deleting...");
//delete old file after copy is done
await sourceBlob.DeleteIfExistsAsync();
log.LogInformation("... file deleted, rename finished");
}
else
{
log.LogError("Source not found!");
}
}
catch (StorageException e)
{
log.LogError(e.Message);
throw;
}
finally
{
await releaseLease(sourceBlob);
}
return((ActionResult) new OkObjectResult($"Hello, "));
}
catch (Exception e)
{
log.LogError(e.Message);
log.LogError(e.StackTrace);
return(new UnprocessableEntityObjectResult(e.Message));
}
}
public static async Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req, ILogger log)
{
try
{
log.LogInformation("C# HTTP trigger function starts process a request.");
log.LogInformation("Request is a " + System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
string containerName = req.Query["username"];
if (containerName == null)
{
string errorMessage = "No container name given!";
log.LogError(errorMessage);
return(new BadRequestObjectResult(errorMessage));
}
string fileName = req.Query["filename"];
if (fileName == null)
{
string errorMessage = "No file name given!";
log.LogError(errorMessage);
return(new BadRequestObjectResult(errorMessage));
}
if (req.ContentLength == null || req.ContentLength == 0)
{
return(new BadRequestObjectResult("Could not see raw data"));
}
else
{
log.LogInformation(@"Uploading {req.ContentLength} bytes");
}
if (req.ContentLength > int.MaxValue)
{
return(new BadRequestObjectResult("Content to upload is too large"));
}
int sizeOfBlobsInContainer = await BlobManager.getSizeInBytes(containerName);
int remainingSize = BlobManager.maxSizeOfBlobForUser - sizeOfBlobsInContainer;
if (req.ContentLength > remainingSize)
{
log.LogError("User tried to upload too much into his container");
return(new UnauthorizedResult());
}
else
{
log.LogInformation("User has enough free space");
}
byte[] data = new byte[(int)req.ContentLength];
req.Body.Read(data, 0, (int)req.ContentLength);
log.LogInformation("Reading container name");
CloudBlobContainer container = BlobManager.getBlobContainer(containerName);
// Upload a BlockBlob to the newly created container
log.LogInformation("Uploading BlockBlob");
CloudBlockBlob blockBlob = container.GetBlockBlobReference(fileName);
await blockBlob.UploadFromByteArrayAsync(data, 0, data.Length);
log.LogInformation("C# HTTP trigger function finish process a request.");
return(new OkObjectResult($"Uploaded {fileName} to {containerName} which had a size of {req.ContentLength}"));
}
catch (Exception e)
{
log.LogError(e.Message);
log.LogError(e.StackTrace);
return(new UnprocessableEntityObjectResult(e.Message));
}
}
