private async Task Delete(CloudBlobContainer container, Uri blobUri)
{
CloudBlockBlob blob = new CloudBlockBlob(blobUri);
if (blob.Container == container)
{
await blob.DeleteAsync();
}
}
public async Task CloudBlockBlobCreateAndDeleteAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudBlockBlob blob = container.GetBlockBlobReference("blob1");
await CreateForTestAsync(blob, 0, 0);
Assert.IsTrue(await blob.ExistsAsync());
await blob.DeleteAsync();
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public async Task ParallelDownloadToEmptyFileTest()
{
string inputFileName = Path.GetTempFileName();
string outputFileName = Path.GetTempPath() + "output.tmp";
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudBlockBlob blob = container.GetBlockBlobReference("largeblob1");
FileStream fs = File.Create(inputFileName);
fs.Close();
BlobRequestOptions options = new BlobRequestOptions();
options.ParallelOperationThreadCount = 16;
await blob.UploadFromFileAsync(inputFileName, null, options, null);
Assert.IsFalse(File.Exists(outputFileName));
await blob.DownloadToFileParallelAsync(
outputFileName,
FileMode.Create,
16,
null);
Assert.IsTrue(File.Exists(outputFileName));
await blob.DeleteAsync();
}
finally
{
container.DeleteIfExists();
File.Delete(inputFileName);
File.Delete(outputFileName);
}
}
public async Task CloudBlockBlobCopyFromSnapshotTestAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudBlockBlob source = container.GetBlockBlobReference("source");
string data = "String data";
await UploadTextAsync(source, data, Encoding.UTF8);
source.Metadata["Test"] = "value";
await source.SetMetadataAsync();
CloudBlockBlob snapshot = await source.CreateSnapshotAsync();
//Modify source
string newData = "Hello";
source.Metadata["Test"] = "newvalue";
await source.SetMetadataAsync();
source.Properties.ContentMD5 = null;
await UploadTextAsync(source, newData, Encoding.UTF8);
Assert.AreEqual(newData, await DownloadTextAsync(source, Encoding.UTF8), "Source is modified correctly");
Assert.AreEqual(data, await DownloadTextAsync(snapshot, Encoding.UTF8), "Modifying source blob should not modify snapshot");
await source.FetchAttributesAsync();
await snapshot.FetchAttributesAsync();
Assert.AreNotEqual(source.Metadata["Test"], snapshot.Metadata["Test"], "Source and snapshot metadata should be independent");
CloudBlockBlob copy = container.GetBlockBlobReference("copy");
await copy.StartCopyFromBlobAsync(TestHelper.Defiddler(snapshot));
await WaitForCopyAsync(copy);
Assert.AreEqual(CopyStatus.Success, copy.CopyState.Status);
Assert.AreEqual(data, await DownloadTextAsync(copy, Encoding.UTF8), "Data inside copy of blob not similar");
await copy.FetchAttributesAsync();
BlobProperties prop1 = copy.Properties;
BlobProperties prop2 = snapshot.Properties;
Assert.AreEqual(prop1.CacheControl, prop2.CacheControl);
Assert.AreEqual(prop1.ContentEncoding, prop2.ContentEncoding);
Assert.AreEqual(prop1.ContentDisposition, prop2.ContentDisposition);
Assert.AreEqual(prop1.ContentLanguage, prop2.ContentLanguage);
Assert.AreEqual(prop1.ContentMD5, prop2.ContentMD5);
Assert.AreEqual(prop1.ContentType, prop2.ContentType);
Assert.AreEqual("value", copy.Metadata["Test"], false, "Copied metadata not same");
await copy.DeleteAsync();
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public async Task CloudBlockBlobCopyTestAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudBlockBlob source = container.GetBlockBlobReference("source");
string data = "String data";
await UploadTextAsync(source, data, Encoding.UTF8);
source.Metadata["Test"] = "value";
await source.SetMetadataAsync();
CloudBlockBlob copy = container.GetBlockBlobReference("copy");
string copyId = await copy.StartCopyFromBlobAsync(TestHelper.Defiddler(source));
await WaitForCopyAsync(copy);
Assert.AreEqual(CopyStatus.Success, copy.CopyState.Status);
Assert.AreEqual(source.Uri.AbsolutePath, copy.CopyState.Source.AbsolutePath);
Assert.AreEqual(data.Length, copy.CopyState.TotalBytes);
Assert.AreEqual(data.Length, copy.CopyState.BytesCopied);
Assert.AreEqual(copyId, copy.CopyState.CopyId);
Assert.IsTrue(copy.CopyState.CompletionTime > DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(1)));
OperationContext opContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async() => await copy.AbortCopyAsync(copyId, null, null, opContext),
opContext,
"Aborting a copy operation after completion should fail",
HttpStatusCode.Conflict,
"NoPendingCopyOperation");
await source.FetchAttributesAsync();
Assert.IsNotNull(copy.Properties.ETag);
Assert.AreNotEqual(source.Properties.ETag, copy.Properties.ETag);
Assert.IsTrue(copy.Properties.LastModified > DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(1)));
string copyData = await DownloadTextAsync(copy, Encoding.UTF8);
Assert.AreEqual(data, copyData, "Data inside copy of blob not similar");
await copy.FetchAttributesAsync();
BlobProperties prop1 = copy.Properties;
BlobProperties prop2 = source.Properties;
Assert.AreEqual(prop1.CacheControl, prop2.CacheControl);
Assert.AreEqual(prop1.ContentDisposition, prop2.ContentDisposition);
Assert.AreEqual(prop1.ContentEncoding, prop2.ContentEncoding);
Assert.AreEqual(prop1.ContentLanguage, prop2.ContentLanguage);
Assert.AreEqual(prop1.ContentMD5, prop2.ContentMD5);
Assert.AreEqual(prop1.ContentType, prop2.ContentType);
Assert.AreEqual("value", copy.Metadata["Test"], false, "Copied metadata not same");
await copy.DeleteAsync();
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
/// <summary>
/// Tests a blob SAS to determine which operations it allows.
/// </summary>
/// <param name="sasUri">A string containing a URI with a SAS appended.</param>
/// <param name="blobContent">A string content content to write to the blob.</param>
/// <returns>A Task object.</returns>
private static async Task TestBlobSASAsync(string sasUri, string blobContent)
{
// Try performing blob operations using the SAS provided.
// Return a reference to the blob using the SAS URI.
CloudBlockBlob blob = new CloudBlockBlob(new Uri(sasUri));
// Create operation: Upload a blob with the specified name to the container.
// If the blob does not exist, it will be created. If it does exist, it will be overwritten.
try
{
MemoryStream msWrite = new MemoryStream(Encoding.UTF8.GetBytes(blobContent));
msWrite.Position = 0;
using (msWrite)
{
await blob.UploadFromStreamAsync(msWrite);
}
Console.WriteLine("Create operation succeeded for SAS {0}", sasUri);
Console.WriteLine();
}
catch (StorageException e)
{
if (e.RequestInformation.HttpStatusCode == 403)
{
Console.WriteLine("Create operation failed for SAS {0}", sasUri);
Console.WriteLine("Additional error information: " + e.Message);
Console.WriteLine();
}
else
{
Console.WriteLine(e.Message);
Console.ReadLine();
throw;
}
}
// Write operation: Add metadata to the blob
try
{
await blob.FetchAttributesAsync();
string rnd = new Random().Next().ToString();
string metadataName = "name";
string metadataValue = "value";
blob.Metadata.Add(metadataName, metadataValue);
await blob.SetMetadataAsync();
Console.WriteLine("Write operation succeeded for SAS {0}", sasUri);
Console.WriteLine();
}
catch (StorageException e)
{
if (e.RequestInformation.HttpStatusCode == 403)
{
Console.WriteLine("Write operation failed for SAS {0}", sasUri);
Console.WriteLine("Additional error information: " + e.Message);
Console.WriteLine();
}
else
{
Console.WriteLine(e.Message);
Console.ReadLine();
throw;
}
}
// Read operation: Read the contents of the blob.
try
{
MemoryStream msRead = new MemoryStream();
using (msRead)
{
await blob.DownloadToStreamAsync(msRead);
msRead.Position = 0;
using (StreamReader reader = new StreamReader(msRead, true))
{
string line;
while ((line = reader.ReadLine()) != null)
{
Console.WriteLine(line);
}
}
Console.WriteLine();
}
Console.WriteLine("Read operation succeeded for SAS {0}", sasUri);
Console.WriteLine();
}
catch (StorageException e)
{
if (e.RequestInformation.HttpStatusCode == 403)
{
Console.WriteLine("Read operation failed for SAS {0}", sasUri);
Console.WriteLine("Additional error information: " + e.Message);
Console.WriteLine();
}
else
{
Console.WriteLine(e.Message);
Console.ReadLine();
throw;
}
}
// Delete operation: Delete the blob.
try
{
await blob.DeleteAsync();
Console.WriteLine("Delete operation succeeded for SAS {0}", sasUri);
Console.WriteLine();
}
catch (StorageException e)
{
if (e.RequestInformation.HttpStatusCode == 403)
{
Console.WriteLine("Delete operation failed for SAS {0}", sasUri);
Console.WriteLine("Additional error information: " + e.Message);
Console.WriteLine();
}
else
{
Console.WriteLine(e.Message);
Console.ReadLine();
throw;
}
}
}
/// <summary>
/// Test blob writing, expecting success.
/// </summary>
/// <param name="testBlob">The blob to test.</param>
/// <param name="sourceBlob">A blob to use as the source of a copy.</param>
/// <param name="testAccessCondition">The access condition to use.</param>
private async Task BlobWriteExpectLeaseSuccessAsync(CloudBlockBlob testBlob, CloudBlob sourceBlob, AccessCondition testAccessCondition)
{
await testBlob.SetMetadataAsync(testAccessCondition, null /* options */, null);
await testBlob.SetPropertiesAsync(testAccessCondition, null /* options */, null);
await UploadTextAsync(testBlob, "No Problem", Encoding.UTF8, testAccessCondition, null /* options */, null);
await testBlob.StartCopyAsync(TestHelper.Defiddler(sourceBlob.Uri), null /* source access condition */, testAccessCondition, null /* options */, null);
while (testBlob.CopyState.Status == CopyStatus.Pending)
{
await Task.Delay(1000);
await testBlob.FetchAttributesAsync();
}
var writeStream = await testBlob.OpenWriteAsync(testAccessCondition, null /* options */, null);
Stream stream = writeStream.AsStreamForWrite();
stream.WriteByte(0);
await stream.FlushAsync();
await testBlob.DeleteAsync(DeleteSnapshotsOption.None, testAccessCondition, null /* options */, null);
}
/// <summary>
/// Test blob write and creation, expecting lease failure.
/// </summary>
/// <param name="testBlob">The blob to test.</param>
/// <param name="sourceBlob">A blob to use as the source of a copy.</param>
/// <param name="testAccessCondition">The failing access condition to use.</param>
/// <param name="expectedErrorCode">The expected error code.</param>
/// <param name="description">The reason why these calls should fail.</param>
private async Task BlobWriteExpectLeaseFailureAsync(CloudBlockBlob testBlob, CloudBlockBlob sourceBlob, AccessCondition testAccessCondition, HttpStatusCode expectedStatusCode, string expectedErrorCode, string description)
{
await this.BlobCreateExpectLeaseFailureAsync(testBlob, sourceBlob, testAccessCondition, expectedStatusCode, expectedErrorCode, description);
OperationContext operationContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async () => await testBlob.SetMetadataAsync(testAccessCondition, null /* options */, operationContext),
operationContext,
description + " (Set Metadata)",
expectedStatusCode,
expectedErrorCode);
await TestHelper.ExpectedExceptionAsync(
async () => await testBlob.SetPropertiesAsync(testAccessCondition, null /* options */, operationContext),
operationContext,
description + " (Set Properties)",
expectedStatusCode,
expectedErrorCode);
await TestHelper.ExpectedExceptionAsync(
async () => await testBlob.DeleteAsync(DeleteSnapshotsOption.None, testAccessCondition, null /* options */, operationContext),
operationContext,
description + " (Delete)",
expectedStatusCode,
expectedErrorCode);
}
/// <summary>
/// Test blob writing, expecting success.
/// </summary>
/// <param name="testBlob">The blob to test.</param>
/// <param name="sourceBlob">A blob to use as the source of a copy.</param>
/// <param name="testAccessCondition">The access condition to use.</param>
private void BlobWriteExpectLeaseSuccessTask(CloudBlockBlob testBlob, CloudBlob sourceBlob, AccessCondition testAccessCondition)
{
testBlob.SetMetadataAsync(testAccessCondition, null /* options */, new OperationContext()).Wait();
testBlob.SetPropertiesAsync(testAccessCondition, null /* options */, new OperationContext()).Wait();
UploadTextTask(testBlob, "No Problem", Encoding.UTF8, testAccessCondition, null /* options */, new OperationContext());
testBlob.StartCopyAsync(
TestHelper.Defiddler(sourceBlob.Uri),
null /* source access condition */,
testAccessCondition,
null /* options */,
new OperationContext()).Wait();
while (testBlob.CopyState.Status == CopyStatus.Pending)
{
Thread.Sleep(1000);
testBlob.FetchAttributesAsync().Wait();
}
Stream stream = testBlob.OpenWriteAsync(testAccessCondition, null /* options */, new OperationContext()).Result;
stream.WriteByte(0);
stream.Flush();
testBlob.DeleteAsync(DeleteSnapshotsOption.None, testAccessCondition, null /* options */, new OperationContext());
}
public async Task<bool> DeletePictureFormCloud(PictureViewModel pictureViewModel)
{
try
{
var blob = new CloudBlockBlob(new Uri(pictureViewModel.PictureUrl), App.credentials);
await blob.DeleteAsync();
var tableClient = App.account.CreateCloudTableClient();
var table = tableClient.GetTableReference(App.tableName);
var operation = TableOperation.Delete(pictureViewModel.PictureTableEntity);
await table.ExecuteAsync(operation);
allImages.Remove(pictureViewModel);
return true;
}
catch (Exception)
{
throw;
}
}