C# Blob.BlobContainerPermissions类代码示例

        public BlobContainer(string name)
        {
            // hämta connectionsträngen från config // RoleEnviroment bestämmer settingvalue runtime
            //var connectionString = RoleEnvironment.GetConfigurationSettingValue("PhotoAppStorage");
            //var connectionString = CloudConfigurationManager.GetSetting("CloudStorageApp");
            // hämtar kontot utfrån connectionsträngens värde
            //var account = CloudStorageAccount.Parse(connectionString);

            //var account = CloudStorageAccount.DevelopmentStorageAccount;

            var cred = new StorageCredentials("jholm",
                "/bVipQ2JxjWwYrZQfHmzhaBx1p1s8BoD/wX6VWOmg4/gpVo/aALrjsDUKqzXsFtc9utepPqe65NposrXt9YsyA==");
            var account = new CloudStorageAccount(cred, true);

            // skapar en blobclient
            _client = account.CreateCloudBlobClient();

            m_BlobContainer = _client.GetContainerReference(name);

            // Om det inte finns någon container med det namnet
            if (!m_BlobContainer.Exists())
            {
                // Skapa containern
                m_BlobContainer.Create();
                var permissions = new BlobContainerPermissions()
                {
                    PublicAccess = BlobContainerPublicAccessType.Blob
                };
                // Sätter public access till blobs
                m_BlobContainer.SetPermissions(permissions);
            }
        }

        public string Get()
        {
            var storageAccount = CloudStorageAccount.Parse(CloudConfigurationManager.GetSetting(Constants.ConfigurationKeys.StorageConnection));
            var blobClient = storageAccount.CreateCloudBlobClient();

            var container = blobClient.GetContainerReference(CloudConfigurationManager.GetSetting(Constants.ConfigurationKeys.ContainerName));
            container.CreateIfNotExists();

            var blobPermissions = new BlobContainerPermissions();

            blobPermissions.SharedAccessPolicies.Add(AppPolicyName, new SharedAccessBlobPolicy()
            {
                // To ensure SAS is valid immediately, don’t set start time.
                // This way, you can avoid failures caused by small clock differences.
                SharedAccessExpiryTime = DateTime.UtcNow.AddMinutes(5),
                Permissions = SharedAccessBlobPermissions.Write |
                                SharedAccessBlobPermissions.Read
            });

            blobPermissions.PublicAccess = BlobContainerPublicAccessType.Blob;

            container.SetPermissions(blobPermissions);

            var sasToken = container.GetSharedAccessSignature(new SharedAccessBlobPolicy(), AppPolicyName);

            return container.Uri + sasToken;
        }

        /// <summary>
        /// set the access level of specified container
        /// </summary>
        /// <param name="name">container name</param>
        /// <param name="accessLevel">access level in ("off", "blob", "container")</param>
        internal void SetContainerAcl(string name, BlobContainerPublicAccessType accessLevel)
        {
            if (!NameUtil.IsValidContainerName(name))
            {
                throw new ArgumentException(String.Format(Resources.InvalidContainerName, name));
            }

            BlobContainerPermissions permissions = new BlobContainerPermissions();
            permissions.PublicAccess = accessLevel;

            BlobRequestOptions requestOptions = RequestOptions;
            AccessCondition accessCondition = null;

            CloudBlobContainer container = Channel.GetContainerReference(name);

            if (!Channel.DoesContainerExist(container, requestOptions, OperationContext))
            {
                throw new ResourceNotFoundException(String.Format(Resources.ContainerNotFound, name));
            }

            Channel.SetContainerPermissions(container, permissions, accessCondition, requestOptions, OperationContext);
            AzureStorageContainer azureContainer = new AzureStorageContainer(container, permissions);

            if (PassThru)
            {
                WriteObjectWithStorageContext(azureContainer);
            }
        }

        /// <summary>
        /// set the access level of specified container
        /// </summary>
        /// <param name="name">container name</param>
        /// <param name="accessLevel">access level in ("off", "blob", "container")</param>
        internal async Task SetContainerAcl(long taskId, IStorageBlobManagement localChannel, string name, BlobContainerPublicAccessType accessLevel)
        {
            if (!NameUtil.IsValidContainerName(name))
            {
                throw new ArgumentException(String.Format(Resources.InvalidContainerName, name));
            }

            BlobContainerPermissions permissions = new BlobContainerPermissions();
            permissions.PublicAccess = accessLevel;

            BlobRequestOptions requestOptions = RequestOptions;
            AccessCondition accessCondition = null;

            CloudBlobContainer container = localChannel.GetContainerReference(name);

            if (!await localChannel.DoesContainerExistAsync(container, requestOptions, OperationContext, CmdletCancellationToken))
            {
                throw new ResourceNotFoundException(String.Format(Resources.ContainerNotFound, name));
            }

            await localChannel.SetContainerPermissionsAsync(container, permissions, accessCondition, requestOptions, OperationContext, CmdletCancellationToken);

            if (PassThru)
            {
                WriteCloudContainerObject(taskId, localChannel, container, permissions);
            }
        }

        static public void Upload(string filepath, string blobname, string accountName, string accountKey)
        {
            try
            {
                StorageCredentials creds = new StorageCredentials(accountName, accountKey);
                CloudStorageAccount account = new CloudStorageAccount(creds, useHttps: true);
                CloudBlobClient client = account.CreateCloudBlobClient();
                CloudBlobContainer sampleContainer = client.GetContainerReference("public-samples");
                sampleContainer.CreateIfNotExists();

                // for public access ////
                BlobContainerPermissions permissions = new BlobContainerPermissions();
                permissions.PublicAccess = BlobContainerPublicAccessType.Container;
                sampleContainer.SetPermissions(permissions);
                /////////////////////////

                CloudBlockBlob blob = sampleContainer.GetBlockBlobReference(blobname);
                using (Stream file = File.OpenRead(filepath))
                {
                    blob.UploadFromStream(file);
                }

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
        }

        public GetUploadLocationResponse Post(GetUploadLocationRequest request)
        {
            _log.StartLog(request);
            try
            {

                var contName = "deletable" + Guid.NewGuid().ToString("D").ToLowerInvariant();

                var container = _azure.CreateContainerIfDoesNotExist(contName);

                var blobPolicy = new SharedAccessBlobPolicy {
                                                                Permissions = SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Write | SharedAccessBlobPermissions.List,
                                                                SharedAccessExpiryTime = DateTimeOffset.Now.AddHours(HOURS_FILE_SHOULD_BE_ACCESSIBLE)

                                                            };

                var permissions = new BlobContainerPermissions();
                permissions.SharedAccessPolicies.Add("mypolicy", blobPolicy);
                permissions.PublicAccess = BlobContainerPublicAccessType.Container;
                container.SetPermissions(permissions);
                var sharedAccessSignature = container.GetSharedAccessSignature("mypolicy");

                return new GetUploadLocationResponse {Name= container.Name, Location = container.Uri.ToString(), Sas = sharedAccessSignature, Account = _azure.Account};
            }
            catch (Exception e)
            {
                _log.Fatal("error", e);
                Errors.Add(e.Message + " " + e.StackTrace);

                return new GetUploadLocationResponse {Errors = Errors};
            }
        }

        /// <summary>
        /// Function to get Blob container
        /// </summary>
        /// <param name="containerName">container to look</param>
        /// <returns>Blob container</returns>
        public CloudBlobContainer GetBlobContainer()
        {
            // get the container reference
            var blobContainer = blobClient.GetContainerReference(containerName);

            try
            {
                // Create the container if it does not exist.
                var options = new BlobRequestOptions
                {
                    MaximumExecutionTime = TimeSpan.FromSeconds(2),
                };
                if (blobContainer.CreateIfNotExists())
                {
                    // Set permissions on the container, if it was created.
                    var containerPermissions = new BlobContainerPermissions
                    {
                        PublicAccess = BlobContainerPublicAccessType.Off
                    };
                    blobContainer.SetPermissions(containerPermissions);
                }
            }
            catch (Exception ex)
            {
            }

            return blobContainer;
        }

        public static bool DeleteFile(string accountName, string accountKey, string containerName, string fileName, bool delSubDirs)
        {
            try
            {
                CloudStorageAccount storageAccount = CloudStorageAccount.Parse("DefaultEndpointsProtocol=http;AccountName=" + accountName + ";AccountKey=" + accountKey);
                CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
                CloudBlobContainer container = blobClient.GetContainerReference(containerName);
                container.CreateIfNotExists();
                BlobContainerPermissions containerPermissions = new BlobContainerPermissions();
                containerPermissions.PublicAccess = BlobContainerPublicAccessType.Blob;
                container.SetPermissions(containerPermissions);

                if (false == delSubDirs)
                {
                    CloudBlockBlob remoteFile = container.GetBlockBlobReference(fileName);
                    remoteFile.DeleteIfExists();
                }

                if (true == delSubDirs)
                {
                    foreach (IListBlobItem item in container.ListBlobs(fileName, true))
                    {
                        CloudBlockBlob blob = (CloudBlockBlob)item;
                        blob.DeleteIfExists();
                    }
                }
            }
            catch (Exception)
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// Initiates the SolCat Azure blob data sync.  
        /// </summary>
        public static void CopyBlobData()
        {
            // Authentication Credentials for Azure Storage:
            var credsSrc
                = new StorageCredentials(
                    ConfigHelper.GetConfigValue("HubContainerName"),
                    ConfigHelper.GetConfigValue("HubContainerKey"));

            var credsDest
                = new StorageCredentials(
                    ConfigHelper.GetConfigValue("NodeContainerKey"),
                    ConfigHelper.GetConfigValue("NodeContainerKey"));

            // Source Container: Hub (Development)
            _srcContainer =
                new CloudBlobContainer(
                    new Uri(ConfigHelper.GetConfigValue("HubContainerUri")),
                    credsSrc);

            // Destination Container: Node (Production)
            _destContainer =
                new CloudBlobContainer(
                    new Uri(ConfigHelper.GetConfigValue("NodeContainerUri")),
                    credsDest);

            // Set permissions on the container:
            var permissions = new BlobContainerPermissions {PublicAccess = BlobContainerPublicAccessType.Blob};
            _srcContainer.SetPermissions(permissions);
            _destContainer.SetPermissions(permissions);

            // Call the blob copy master method:
            CopyBlobs(_srcContainer, _destContainer);
        }

        /// <summary>
        /// Occurs when a storage provider operation has completed.
        /// </summary>
        //public event EventHandler<StorageProviderEventArgs> StorageProviderOperationCompleted;

        #endregion

        // Initialiser method
        private void Initialise(string storageAccount, string containerName)
        {
            if (String.IsNullOrEmpty(containerName))
                throw new ArgumentException("You must provide the base Container Name", "containerName");
            
            ContainerName = containerName;

            _account = CloudStorageAccount.Parse(storageAccount);
            _blobClient = _account.CreateCloudBlobClient();
            _container = _blobClient.GetContainerReference(ContainerName);
            try
            {
                _container.FetchAttributes();
            }
            catch (StorageException)
            {
                Trace.WriteLine(string.Format("Create new container: {0}", ContainerName), "Information");
                _container.Create();

                // set new container's permissions
                // Create a permission policy to set the public access setting for the container. 
                BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

                // The public access setting explicitly specifies that the container is private,
                // so that it can't be accessed anonymously.
                containerPermissions.PublicAccess = BlobContainerPublicAccessType.Off;

                //Set the permission policy on the container.
                _container.SetPermissions(containerPermissions);
            }
        }

        public azureStorageHelper(string acountName, string accountKey)
        {
            sCredentials = new StorageCredentials(acountName, accountKey);
            storageAccount = new CloudStorageAccount(sCredentials, true);

            queueClient = storageAccount.CreateCloudQueueClient();
            blobClient = storageAccount.CreateCloudBlobClient();
            permisions = new BlobContainerPermissions();
            permisions.PublicAccess = BlobContainerPublicAccessType.Container;
        }

        public static async Task<string> SaveBinaryToAzureStorage(MobileAppSettingsDictionary settings, string blobId, string blobData )
        {
            string storageAccountName;
            string storageAccountKey;


            // Try to get the Azure storage account token from app settings.  
            if (!(settings.TryGetValue("STORAGE_ACCOUNT_NAME", out storageAccountName) |
                settings.TryGetValue("STORAGE_ACCOUNT_ACCESS_KEY", out storageAccountKey)))
            {
                return string.Empty;
            }

            // Set the URI for the Blob Storage service.
            Uri blobEndpoint = new Uri(string.Format("https://{0}.blob.core.windows.net", storageAccountName));

            // Create the BLOB service client.
            CloudBlobClient blobClient = new CloudBlobClient(blobEndpoint,
                new StorageCredentials(storageAccountName, storageAccountKey));

            string ContainerName = "beerdrinkinimages";

            // Create a container, if it doesn't already exist.
            CloudBlobContainer container = blobClient.GetContainerReference(ContainerName);
            await container.CreateIfNotExistsAsync();

            // Create a shared access permission policy. 
            BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

            // Enable anonymous read access to BLOBs.
            containerPermissions.PublicAccess = BlobContainerPublicAccessType.Blob;
            container.SetPermissions(containerPermissions);

            // Define a policy that gives write access to the container for 1 minute.                                   
            SharedAccessBlobPolicy sasPolicy = new SharedAccessBlobPolicy()
            {
                SharedAccessStartTime = DateTime.UtcNow,
                SharedAccessExpiryTime = DateTime.UtcNow.AddMinutes(1),
                Permissions = SharedAccessBlobPermissions.Write
            };

            // Get the SAS as a string.
            var SasQueryString = container.GetSharedAccessSignature(sasPolicy);

            // Set the URL used to store the image.
            var avatarUri = string.Format("{0}{1}/{2}", blobEndpoint.ToString(),
                ContainerName, blobId.ToLower());

            // Upload the new image as a BLOB from the string.
            CloudBlockBlob blobFromSASCredential =
                container.GetBlockBlobReference(blobId.ToLower());
            blobFromSASCredential.UploadTextAsync(blobData);

            return avatarUri;
        }

        public void SetupEnvironment()
        {
            var blobClient = _acct.CreateCloudBlobClient();

            var container = blobClient.GetContainerReference(POST_FILE_CONTAINER);
            container.CreateIfNotExists();

            BlobContainerPermissions containerPermissions = new BlobContainerPermissions();
            containerPermissions.PublicAccess = BlobContainerPublicAccessType.Blob;
            container.SetPermissions(containerPermissions);
        }

        /// <summary>
        /// Assign permissions for a download to occur for our readonly permission policy
        /// </summary>
        static void AssignDownloadPolicyContainerPermissions(CloudBlobContainer container)
        {
            // Secure storage. We will provide read tokens for access to blob data on a per-blob basis.
            var containerPermissions = new BlobContainerPermissions();
            containerPermissions.PublicAccess = BlobContainerPublicAccessType.Off;
            containerPermissions.SharedAccessPolicies.Add(DownloadPolicyName, new SharedAccessBlobPolicy
            {
                Permissions = SharedAccessBlobPermissions.Read
            });

            container.SetPermissions(containerPermissions);
        }

        public void CreateBlobs(bool createSettingsBlob, bool createModelBlob, int modelId = 1)
        {
            if (createSettingsBlob || createModelBlob)
            {
                CloudStorageAccount storageAccount = CloudStorageAccount.Parse(MockCommandCenter.StorageConnectionString);
                CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

                var localContainer = blobClient.GetContainerReference(this.localAzureContainerName);
                localContainer.CreateIfNotExists();

                if (createSettingsBlob)
                {
                    var settingsBlob = localContainer.GetBlockBlobReference(this.localAzureSettingsBlobName);
                    byte[] settingsContent = this.GetSettingsBlobContent();
                    settingsBlob.UploadFromByteArray(settingsContent, 0, settingsContent.Length);
                    this.localAzureSettingsBlobUri = settingsBlob.Uri.ToString();
                }

                if (createModelBlob)
                {
                    var modelBlob = localContainer.GetBlockBlobReference(this.localAzureModelBlobName);
                    byte[] modelContent = this.GetCBModelBlobContent(modelId);
                    modelBlob.UploadFromByteArray(modelContent, 0, modelContent.Length);
                    this.localAzureModelBlobUri = modelBlob.Uri.ToString();
                }

                var locationContainer = blobClient.GetContainerReference(this.localAzureBlobLocationContainerName);
                locationContainer.CreateIfNotExists();

                var publicAccessPermission = new BlobContainerPermissions()
                {
                    PublicAccess = BlobContainerPublicAccessType.Blob
                };

                locationContainer.SetPermissions(publicAccessPermission);

                var metadata = new ApplicationTransferMetadata
                {
                    ApplicationID = "test",
                    ConnectionString = MockCommandCenter.StorageConnectionString,
                    ExperimentalUnitDuration = 15,
                    IsExplorationEnabled = true,
                    ModelBlobUri = this.localAzureModelBlobUri,
                    SettingsBlobUri = this.localAzureSettingsBlobUri,
                    ModelId = "latest"
                };

                var locationBlob = locationContainer.GetBlockBlobReference(this.token);
                byte[] locationBlobContent = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(metadata));
                locationBlob.UploadFromByteArray(locationBlobContent, 0, locationBlobContent.Length);
            }
        }