protected virtual OptimisticConcurrencyContext GetContextForUnexistentBlob(string objId)
{
return(new OptimisticConcurrencyContext()
{
ObjectId = objId,
AccessCondition = AccessCondition.GenerateIfModifiedSinceCondition(DateTime.Now)//not datetime.minvalue?
});
}
public async Task CloudBlobContainerConditionalAccessAsync()
{
OperationContext operationContext = new OperationContext();
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
await container.FetchAttributesAsync();
string currentETag = container.Properties.ETag;
DateTimeOffset currentModifiedTime = container.Properties.LastModified.Value;
// ETag conditional tests
container.Metadata["ETagConditionalName"] = "ETagConditionalValue";
await container.SetMetadataAsync();
await container.FetchAttributesAsync();
string newETag = container.Properties.ETag;
Assert.AreNotEqual(newETag, currentETag, "ETage should be modified on write metadata");
// LastModifiedTime tests
currentModifiedTime = container.Properties.LastModified.Value;
container.Metadata["DateConditionalName"] = "DateConditionalValue";
await TestHelper.ExpectedExceptionAsync(
async() => await container.SetMetadataAsync(AccessCondition.GenerateIfModifiedSinceCondition(currentModifiedTime), null, operationContext),
operationContext,
"IfModifiedSince conditional on current modified time should throw",
HttpStatusCode.PreconditionFailed,
"ConditionNotMet");
container.Metadata["DateConditionalName"] = "DateConditionalValue2";
currentETag = container.Properties.ETag;
DateTimeOffset pastTime = currentModifiedTime.Subtract(TimeSpan.FromMinutes(5));
await container.SetMetadataAsync(AccessCondition.GenerateIfModifiedSinceCondition(pastTime), null, null);
pastTime = currentModifiedTime.Subtract(TimeSpan.FromHours(5));
await container.SetMetadataAsync(AccessCondition.GenerateIfModifiedSinceCondition(pastTime), null, null);
pastTime = currentModifiedTime.Subtract(TimeSpan.FromDays(5));
await container.SetMetadataAsync(AccessCondition.GenerateIfModifiedSinceCondition(pastTime), null, null);
await container.FetchAttributesAsync();
newETag = container.Properties.ETag;
Assert.AreNotEqual(newETag, currentETag, "ETage should be modified on write metadata");
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
/// <summary>
/// Read the entire contents of the file into the given Stream if it is
/// not modified since a given time.
/// </summary>
/// <param name="Stream">Supplies the Stream to read the entire
/// contents of the file into.</param>
/// <param name="Time">Supplies the modified since limit.</param>
public void ReadIfModifiedSince(Stream Stream, DateTimeOffset Time)
{
try
{
Blob.DownloadToStream(Stream, AccessCondition.GenerateIfModifiedSinceCondition(Time));
}
catch (StorageException Ex)
{
if (Ex.RequestInformation.HttpStatusMessage == AzureFileStoreStatusCodes.ConditionNotMet)
{
throw new FileStoreConditionNotMetException(Ex);
}
throw;
}
}
public void RetryPolicyEnsure304IsNotRetried()
{
CloudBlobContainer container = BlobTestBase.GetRandomContainerReference();
container.Create();
try
{
CloudBlockBlob blob = container.GetBlockBlobReference("blob");
blob.UploadFromStream(new MemoryStream(new byte[50]));
AccessCondition accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(blob.Properties.LastModified.Value.AddMinutes(10));
OperationContext context = new OperationContext();
TestHelper.ExpectedException(
() => blob.FetchAttributes(accessCondition, new BlobRequestOptions()
{
RetryPolicy = new ExponentialRetry()
}, context),
"FetchAttributes with invalid modified condition should return NotModified",
HttpStatusCode.NotModified);
TestHelper.AssertNAttempts(context, 1);
context = new OperationContext();
TestHelper.ExpectedException(
() => blob.FetchAttributes(accessCondition, new BlobRequestOptions()
{
RetryPolicy = new LinearRetry()
}, context),
"FetchAttributes with invalid modified condition should return NotModified",
HttpStatusCode.NotModified);
TestHelper.AssertNAttempts(context, 1);
}
finally
{
container.Delete();
}
}
public async Task PageBlobWriteStreamOpenWithAccessConditionAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
await container.CreateAsync();
try
{
OperationContext context = new OperationContext();
CloudPageBlob existingBlob = container.GetPageBlobReference("blob");
await existingBlob.CreateAsync(1024);
CloudPageBlob blob = container.GetPageBlobReference("blob2");
AccessCondition accessCondition = AccessCondition.GenerateIfMatchCondition(existingBlob.Properties.ETag);
await TestHelper.ExpectedExceptionAsync(
async() => await blob.OpenWriteAsync(1024, accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
blob = container.GetPageBlobReference("blob3");
accessCondition = AccessCondition.GenerateIfNoneMatchCondition(existingBlob.Properties.ETag);
IOutputStream blobStream = await blob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
blob = container.GetPageBlobReference("blob4");
accessCondition = AccessCondition.GenerateIfNoneMatchCondition("*");
blobStream = await blob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
blob = container.GetPageBlobReference("blob5");
accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(1));
blobStream = await blob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
blob = container.GetPageBlobReference("blob6");
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(-1));
blobStream = await blob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfMatchCondition(existingBlob.Properties.ETag);
blobStream = await existingBlob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfMatchCondition(blob.Properties.ETag);
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(1024, accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
accessCondition = AccessCondition.GenerateIfNoneMatchCondition(blob.Properties.ETag);
blobStream = await existingBlob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfNoneMatchCondition(existingBlob.Properties.ETag);
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(1024, accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
accessCondition = AccessCondition.GenerateIfNoneMatchCondition("*");
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(1024, accessCondition, null, context),
context,
"BlobWriteStream.Dispose with a non-met condition should fail",
HttpStatusCode.Conflict);
accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(-1));
blobStream = await existingBlob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(1));
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(1024, accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(1));
blobStream = await existingBlob.OpenWriteAsync(1024, accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(-1));
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(1024, accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
}
finally
{
container.DeleteAsync().AsTask().Wait();
}
}
public async Task BlockBlobWriteStreamOpenWithAccessConditionAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
await container.CreateAsync();
try
{
OperationContext context = new OperationContext();
CloudBlockBlob existingBlob = container.GetBlockBlobReference("blob");
await existingBlob.PutBlockListAsync(new List <string>());
CloudBlockBlob blob = container.GetBlockBlobReference("blob2");
AccessCondition accessCondition = AccessCondition.GenerateIfMatchCondition(existingBlob.Properties.ETag);
await TestHelper.ExpectedExceptionAsync(
async() => await blob.OpenWriteAsync(accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.NotFound);
blob = container.GetBlockBlobReference("blob3");
accessCondition = AccessCondition.GenerateIfNoneMatchCondition(existingBlob.Properties.ETag);
var blobStream = await blob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
blob = container.GetBlockBlobReference("blob4");
accessCondition = AccessCondition.GenerateIfNoneMatchCondition("*");
blobStream = await blob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
blob = container.GetBlockBlobReference("blob5");
accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(1));
blobStream = await blob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
blob = container.GetBlockBlobReference("blob6");
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(-1));
blobStream = await blob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfMatchCondition(existingBlob.Properties.ETag);
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfMatchCondition(blob.Properties.ETag);
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
accessCondition = AccessCondition.GenerateIfNoneMatchCondition(blob.Properties.ETag);
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfNoneMatchCondition(existingBlob.Properties.ETag);
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.NotModified);
accessCondition = AccessCondition.GenerateIfNoneMatchCondition("*");
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
await TestHelper.ExpectedExceptionAsync(
() =>
{
blobStream.Dispose();
return(Task.FromResult(true));
},
context,
"BlobWriteStream.Dispose with a non-met condition should fail",
HttpStatusCode.Conflict);
accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(-1));
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(1));
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.NotModified);
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(1));
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
blobStream.Dispose();
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value.AddMinutes(-1));
await TestHelper.ExpectedExceptionAsync(
async() => await existingBlob.OpenWriteAsync(accessCondition, null, context),
context,
"OpenWriteAsync with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
accessCondition = AccessCondition.GenerateIfMatchCondition(existingBlob.Properties.ETag);
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
await existingBlob.SetPropertiesAsync();
await TestHelper.ExpectedExceptionAsync(
() =>
{
blobStream.Dispose();
return(Task.FromResult(true));
},
context,
"BlobWriteStream.Dispose with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
blob = container.GetBlockBlobReference("blob7");
accessCondition = AccessCondition.GenerateIfNoneMatchCondition("*");
blobStream = await blob.OpenWriteAsync(accessCondition, null, context);
await blob.PutBlockListAsync(new List <string>());
await TestHelper.ExpectedExceptionAsync(
() =>
{
blobStream.Dispose();
return(Task.FromResult(true));
},
context,
"BlobWriteStream.Dispose with a non-met condition should fail",
HttpStatusCode.Conflict);
blob = container.GetBlockBlobReference("blob8");
accessCondition = AccessCondition.GenerateIfNotModifiedSinceCondition(existingBlob.Properties.LastModified.Value);
blobStream = await existingBlob.OpenWriteAsync(accessCondition, null, context);
#if ASPNET_K
Thread.Sleep(1000); //Make the condition invalid for sure
#endif
await existingBlob.SetPropertiesAsync();
await TestHelper.ExpectedExceptionAsync(
() =>
{
blobStream.Dispose();
return(Task.FromResult(true));
},
context,
"BlobWriteStream.Dispose with a non-met condition should fail",
HttpStatusCode.PreconditionFailed);
}
finally
{
container.DeleteAsync().AsTask().Wait();
}
}