Ejemplo n.º 1
0
        public async Task UploadFile(string containerName, BlobStorageModels model)
        {
            // upload blob
            _container = _blobClient.GetContainerReference(containerName);
            CloudBlockBlob blockBlob = _container.GetBlockBlobReference(model.File.File.FileName);

            using Stream stream = model.File.File.OpenReadStream();
            blockBlob.UploadFromStream(stream);

            // update table storage
            Microsoft.Azure.Cosmos.Table.CloudStorageAccount cloudStorageAccount = Microsoft.Azure.Cosmos.Table.CloudStorageAccount.DevelopmentStorageAccount;
            CloudTableClient tableClient = cloudStorageAccount.CreateCloudTableClient(new TableClientConfiguration());
            CloudTable       table       = tableClient.GetTableReference("BlobDetails");
            await table.CreateIfNotExistsAsync();

            FileTableEntity newFile = new FileTableEntity
            {
                PartitionKey = containerName,
                Owner        = model.File.Owner,
                Url          = blockBlob.Uri.AbsoluteUri,
                Type         = model.File.Type,
                DataFormat   = model.File.DataFormat,
                Date         = model.File.Date,
                Location     = model.File.Location,
                Author       = model.File.Author
            };

            TableOperation insert = TableOperation.InsertOrMerge(newFile);
            TableResult    result = await table.ExecuteAsync(insert);
        }
Ejemplo n.º 2
0
        public void DeleteFile(string container, string id, string user)
        {
            Microsoft.Azure.Cosmos.Table.CloudStorageAccount cloudStorageAccount = Microsoft.Azure.Cosmos.Table.CloudStorageAccount.DevelopmentStorageAccount;
            CloudTableClient tableClient = cloudStorageAccount.CreateCloudTableClient(new TableClientConfiguration());
            CloudTable       table       = tableClient.GetTableReference("BlobDetails");

            var files = table.ExecuteQuery(new TableQuery <FileTableEntity>()).ToArray();
            var filesFilteredByPartition = new List <FileTableEntity>();

            // make sure only files from the correct "role" are filetered
            foreach (FileTableEntity f in files)
            {
                if (f.PartitionKey == container)
                {
                    filesFilteredByPartition.Add(f);
                }
            }

            foreach (FileTableEntity f in filesFilteredByPartition)
            {
                if (f.RowKey == id && (f.Owner == user || user == "Admin")) // only file owner or admin can delete the file
                {
                    // delete from storage table
                    TableOperation delete = TableOperation.Delete(f);
                    table.Execute(delete);

                    _container = _blobClient.GetContainerReference(container);
                    var blobs = _container.ListBlobs(null, false);

                    foreach (var item in blobs)
                    {
                        if (item.Uri.ToString() == f.Url)
                        {
                            // delete from blob container
                            CloudBlockBlob blob = (CloudBlockBlob)item;
                            blob.DeleteIfExists();
                        }
                    }
                }
            }
        }
Ejemplo n.º 3
0
        public List <FileTableEntity> SearchFiles(string containerName, string searchTerm)
        {
            Microsoft.Azure.Cosmos.Table.CloudStorageAccount cloudStorageAccount = Microsoft.Azure.Cosmos.Table.CloudStorageAccount.DevelopmentStorageAccount;
            CloudTableClient tableClient = cloudStorageAccount.CreateCloudTableClient(new TableClientConfiguration());
            CloudTable       table       = tableClient.GetTableReference("BlobDetails");

            var files = table.ExecuteQuery(new TableQuery <FileTableEntity>()).ToArray();
            var filesFilteredByPartition = new List <FileTableEntity>();

            // only files from the correct "role" (container) can be displayed
            foreach (FileTableEntity f in files)
            {
                if (f.PartitionKey == containerName)
                {
                    filesFilteredByPartition.Add(f);
                }
            }

            // if no search term return all results
            if (searchTerm == null)
            {
                return(filesFilteredByPartition);
            }

            var filesFilteredAfterSearchTerm = new List <FileTableEntity>();

            foreach (FileTableEntity f in filesFilteredByPartition)
            {
                if (f.Author == searchTerm ||
                    f.Location == searchTerm ||
                    f.Owner == searchTerm ||
                    f.Type == searchTerm ||
                    f.DataFormat == searchTerm)
                {
                    filesFilteredAfterSearchTerm.Add(f);
                }
            }

            return(filesFilteredAfterSearchTerm);
        }