public TranslationMiddleware(MicrosoftTranslator translator, ChatbotStateAccessor accessor)
{
_translator = translator ?? throw new ArgumentNullException(nameof(translator));
_accessor = accessor ?? throw new System.ArgumentNullException(nameof(accessor));
_dialogs = new DialogSet(_accessor.ConversationDialogState);
}
/// <summary>
/// This method gets called by the runtime. Use this method to add services to the container.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection"/> specifies the contract for a collection of service descriptors.</param>
/// <seealso cref="IStatePropertyAccessor{T}"/>
/// <seealso cref="https://docs.microsoft.com/en-us/aspnet/web-api/overview/advanced/dependency-injection"/>
/// <seealso cref="https://docs.microsoft.com/en-us/azure/bot-service/bot-service-manage-channels?view=azure-bot-service-4.0"/>
public void ConfigureServices(IServiceCollection services)
{
var secretKey = Configuration.GetSection("botFileSecret")?.Value;
var botFilePath = Configuration.GetSection("botFilePath")?.Value;
// Refer botbuider-tools - MSBot - https://github.com/Microsoft/botbuilder-tools/tree/master/packages/MSBot/docs
// Loads .bot configuration file and adds a singleton that your Bot can access through dependency injection.
var botConfig = BotConfiguration.Load(botFilePath ?? @".\MsBotv4.bot", secretKey);
services.AddSingleton(sp => botConfig ?? throw new InvalidOperationException($"The .bot config file could not be loaded. ({botConfig})"));
// Initialize Bot Connected Services clients.
var connectedServices = new BotServices(botConfig);
services.AddSingleton(sp => connectedServices);
services.AddSingleton(sp => botConfig);
//BotBuilderCommunity OpenSource - https://github.com/BotBuilderCommunity/botbuilder-community-dotnet
services.AddBot <Chatbot>(options =>
{
// Retrieve current endpoint.
var environment = _isProduction ? "production" : "development";
var service = botConfig.Services.FirstOrDefault(s => s.Type == "endpoint" && s.Name == environment);
if (!(service is EndpointService endpointService))
{
throw new InvalidOperationException($"The .bot file does not contain an endpoint with name '{environment}'.");
}
options.CredentialProvider = new SimpleCredentialProvider(endpointService.AppId, endpointService.AppPassword);
// Creates a logger for the application to use.
ILogger logger = _loggerFactory.CreateLogger <Chatbot>();
// Catches any errors that occur during a conversation turn and logs them.
options.OnTurnError = async(context, exception) =>
{
logger.LogError($"Exception caught : {exception}");
await context.SendActivityAsync("Sorry, it looks like something went wrong.");
};
// The Memory Storage used here is for local bot debugging only. When the bot
// is restarted, everything stored in memory will be gone.
//IStorage dataStore = new MemoryStorage();
// For production bots use the Azure Blob or
// Azure CosmosDB storage providers. For the Azure
// based storage providers, add the Microsoft.Bot.Builder.Azure
// Nuget package to your solution. That package is found at:
// https://www.nuget.org/packages/Microsoft.Bot.Builder.Azure/
// Uncomment the following lines to use Azure Blob Storage
//Storage configuration name or ID from the .bot file.
const string StorageConfigurationId = "BlobDataStore";
var blobConfig = botConfig.FindServiceByNameOrId(StorageConfigurationId);
if (!(blobConfig is BlobStorageService blobStorageConfig))
{
throw new InvalidOperationException($"The .bot file does not contain an blob storage with name '{StorageConfigurationId}'.");
}
// Default container name.
const string DefaultBotContainer = "default";
var storageContainer = string.IsNullOrWhiteSpace(blobStorageConfig.Container) ? DefaultBotContainer : blobStorageConfig.Container;
IStorage dataStore = new Microsoft.Bot.Builder.Azure.AzureBlobStorage(blobStorageConfig.ConnectionString, storageContainer);
// Create Conversation State object.
// The Conversation State object is where we persist anything at the conversation-scope.
var conversationState = new ConversationState(dataStore);
var userState = new UserState(dataStore);
options.State.Add(conversationState);
options.State.Add(userState);
if (Configuration.GetValue <bool>("isTranslationMiddlewareEnabled"))
{
var translatorKey = Configuration.GetValue <string>("msTranslatorKey");
options.Middleware.Add(
new TranslationMiddleware(new MicrosoftTranslator(translatorKey),
ChatbotStateAccessor.Create(conversationState, userState)));
}
//https://github.com/BotBuilderCommunity/botbuilder-community-dotnet/tree/master/libraries/Bot.Builder.Community.Middleware.SpellCheck
if (Configuration.GetValue <bool>("isSpellCheckEnabled"))
{
options.Middleware.Add(new SpellCheckMiddleware(Configuration));
}
});
// Create and register state accessors.
// Accessors created here are passed into the IBot-derived class on every turn.
services.AddSingleton <ChatbotStateAccessor>(sp =>
{
var options = sp.GetRequiredService <IOptions <BotFrameworkOptions> >().Value;
if (options == null)
{
throw new InvalidOperationException("BotFrameworkOptions must be configured prior to setting up the state accessors");
}
var conversationState = options.State.OfType <ConversationState>().FirstOrDefault();
if (conversationState == null)
{
throw new InvalidOperationException("ConversationState must be defined and added before adding conversation-scoped state accessors.");
}
var userState = options.State.OfType <UserState>().FirstOrDefault();
if (userState == null)
{
throw new InvalidOperationException("UserState must be defined and added before adding user-scoped state accessors.");
}
// Create the custom state accessor.
// State accessors enable other components to read and write individual properties of state.
var accessors = ChatbotStateAccessor.Create(conversationState, userState);
return(accessors);
});
}
