private async Task CreateBlobAsync(IntuneAppPackage package, MobileAppContentFile contentFile)
{
var blockCount = 0;
var blockIds = new List <string>();
const int chunkSize = 5 * 1024 * 1024;
package.Data.Seek(0, SeekOrigin.Begin);
var lastBlockId = (Math.Ceiling((double)package.Data.Length / chunkSize) - 1).ToString("0000");
foreach (var chunk in Chunk(package.Data, chunkSize, false))
{
var blockId = blockCount++.ToString("0000");
logger.LogInformation($"Uploading block {blockId} of {lastBlockId} to {contentFile.AzureStorageUri}.");
await using (var ms = new MemoryStream(chunk))
{
await TryPutBlockAsync(contentFile, blockId, ms);
}
blockIds.Add(blockId);
}
await new CloudBlockBlob(new Uri(contentFile.AzureStorageUri)).PutBlockListAsync(blockIds);
}
private async Task CreateBlobAsync(IntuneAppPackage package, MobileAppContentFile contentFile, IMobileAppContentFileRequestBuilder contentFileRequestBuilder)
{
var blockCount = 0;
var blockIds = new List <string>();
const int chunkSize = 25 * 1024 * 1024;
package.Data.Seek(0, SeekOrigin.Begin);
var lastBlockId = (Math.Ceiling((double)package.Data.Length / chunkSize) - 1).ToString("0000");
var sw = Stopwatch.StartNew();
foreach (var chunk in Chunk(package.Data, chunkSize, false))
{
if (sw.ElapsedMilliseconds >= 450000)
{
contentFile = await RenewStorageUri(contentFileRequestBuilder);
sw.Restart();
}
var blockId = blockCount++.ToString("0000");
logger.LogInformation($"Uploading block {blockId} of {lastBlockId} to {contentFile.AzureStorageUri}.");
await using (var ms = new MemoryStream(chunk))
{
try
{
await TryPutBlockAsync(contentFile, blockId, ms);
}
catch (StorageException ex) when(ex.RequestInformation.HttpStatusCode == 403)
{
// normally the timer should account for renewing upload URIs, but the Intune APIs are fundamentally unstable and sometimes 403s will be encountered randomly
contentFile = await RenewStorageUri(contentFileRequestBuilder);
sw.Restart();
await TryPutBlockAsync(contentFile, blockId, ms);
}
}
blockIds.Add(blockId);
}
await new CloudBlockBlob(new Uri(contentFile.AzureStorageUri)).PutBlockListAsync(blockIds);
}
private static async Task TryPutBlockAsync(MobileAppContentFile contentFile, string blockId, Stream stream)
{
var attemptCount = 0;
var position = stream.Position;
while (true)
{
try
{
await new CloudBlockBlob(new Uri(contentFile.AzureStorageUri)).PutBlockAsync(blockId, stream, null);
break;
}
catch (StorageException ex)
{
if (!new[] { 307, 403, 400 }.Contains(ex.RequestInformation.HttpStatusCode) || attemptCount++ > 30)
{
throw;
}
stream.Position = position;
await Task.Delay(10000);
}
}
}
private async Task TryPutBlockAsync(MobileAppContentFile contentFile, string blockId, Stream stream)
{
var attemptCount = 0;
var position = stream.Position;
while (true)
{
try
{
await new CloudBlockBlob(new Uri(contentFile.AzureStorageUri)).PutBlockAsync(blockId, stream, null);
break;
}
catch (StorageException ex)
{
if (!new[] { 307, 403, 400 }.Contains(ex.RequestInformation.HttpStatusCode) || attemptCount++ > 50)
{
throw;
}
logger.LogInformation($"Encountered retryable error ({ex.RequestInformation.HttpStatusCode}) uploading blob to {contentFile.AzureStorageUri} - will retry in 10 seconds.");
stream.Position = position;
await Task.Delay(10000);
}
}
}
