|
public GetBlobURI ( string fileName, string containerName ) : |
||
| fileName | string | The file name in storage |
| containerName | string | The container name |
| return | ||
// This function will get triggered/executed when a new message is written
// on an Azure Queue called queue.
public static async Task ProcessQueueMessage(
[QueueTrigger("uploadqueue")] string message,
TextWriter log)
{
log.WriteLineAsync(message).Wait();
var m = message.Split(',');
await log.WriteAsync("Message received: " + m);
var model = new PhotoModel
{
ID = m[0],
ServerFileName = m[1],
StorageAccountName = m[2],
Owner = m[3],
OwnerName = m[4],
BlobURL = m[5],
OriginRegion = m[6]
};
//Copy blob from source to destination
await log.WriteAsync("Replicating blob...");
await Helpers.ReplicateBlobAsync(model, log);
try
{
//Change the blob URL to point to the new location!
await log.WriteAsync("Getting blob URIs");
string storageConnectionString = SettingsHelper.LocalStorageConnectionString;
var repo = new StorageRepository(storageConnectionString);
model.BlobURL = repo.GetBlobURI(model.ServerFileName, StorageConfig.PhotosBlobContainerName).ToString();
model.ThumbnailURL = repo.GetBlobURI(model.ServerFileName, StorageConfig.ThumbnailsBlobContainerName).ToString();
//Create thumbnail
await log.WriteAsync("Creating thumbnail");
await Helpers.CreateThumbnailAsync(repo, model.ServerFileName, log);
//Store in table storage
await log.WriteAsync("Saving to table storage");
await Helpers.SaveToTableStorageAsync(model, log);
//Add to Redis cache
await log.WriteAsync("Saving to Redis");
await Helpers.SaveToRedisAsync(model, log);
}
catch (Exception oops)
{
await log.WriteLineAsync(oops.Message);
}
}
public IHttpActionResult Get(string extension)
{
Regex rg = new Regex(@"^[a-zA-Z0-9]{1,3}$");
if(!rg.IsMatch(extension))
{
throw new HttpResponseException(System.Net.HttpStatusCode.BadRequest);
}
string connectionString = SettingsHelper.LocalStorageConnectionString;
var account = CloudStorageAccount.Parse(connectionString);
StorageRepository repo = new StorageRepository(account);
//Get the SAS token for the container. Allow writes for 2 minutes
var sasToken = repo.GetBlobContainerSASToken();
//Get the blob so we can get the full path including container name
var id = Guid.NewGuid().ToString();
var newFileName = id + "." + extension;
string blobURL = repo.GetBlobURI(
newFileName,
DAL.Azure.StorageConfig.UserUploadBlobContainerName).ToString();
//This function determines which storage account the blob will be
//uploaded to, enabling the future possibility of sharding across
//multiple storage accounts.
var client = account.CreateCloudBlobClient();
var response = new StorageResponse
{
ID = id,
StorageAccountName = client.BaseUri.Authority.Split('.')[0],
BlobURL = blobURL,
BlobSASToken = sasToken,
ServerFileName = newFileName
};
return Ok(response);
}
