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---
id: dev-plugins
title: "Разработка плагинов"
---
Есть много способов расширить `verdaccio`, поддерживаются следующие типы плагинов:
* Плагин аутентификации
* Middleware плагины (начиная с `v2.7.0`)
* Плагины для хранения с (`v3.x`)
> Мы рекомендуем разрабатывать плагины с использованием [flow type definitions](https://github.com/verdaccio/flow-types).
## Плагин аутентификации
В основном мы должны возвращать объект с помощью одного метода, называемого `authenticate`, который должен принимать три аругмента (`user, password, callback`).
### API
```flow
interface IPluginAuth extends IPlugin {
login_url?: string;
authenticate(user: string, password: string, cb: Callback): void;
adduser(user: string, password: string, cb: Callback): void;
allow_access(user: RemoteUser, pkg: $Subtype<PackageAccess>, cb: Callback): void;
allow_publish(user: RemoteUser, pkg: $Subtype<PackageAccess>, cb: Callback): void;
}
```
> Необязательными являются только `adduser`, `allow_access` и `allow_publish`, verdaccio предоставляет запасной вариант в этих случаях.
#### Callback
После того как аутентификация была выполнена, `verdaccio` может быть возвращено только два ответа.
###### OnError
Либо что-то пошло не так, либо аутентификация была не удачной.
```flow
callback(null, false)
```
###### OnSuccess
Аутентификация прошла успешно.
`groups` это массив строк с именами групп, в которых пользователь состоит.
callback(null, groups);
### Пример
```javascript
function Auth(config, stuff) {
var self = Object.create(Auth.prototype);
self._users = {};
// конфигурация для этого модуля
self._config = config;
// verdaccio logger
self._logger = stuff.logger;
// pass verdaccio logger to ldapauth
self._config.client_options.log = stuff.logger;
return self;
}
Auth.prototype.authenticate = function (user, password, callback) {
var LdapClient = new LdapAuth(self._config.client_options);
....
LdapClient.authenticate(user, password, function (err, ldapUser) {
...
var groups;
...
callback(null, groups);
});
};
module.exports = Auth;
```
И конфигурация будет выглядеть как-то так:
```yaml
auth:
htpasswd:
file: ./htpasswd
```
Где `htpasswd` это суфикс имени плагина. Например: `verdaccio-htpasswd` и остальная часть тела должна быть конфигурацией плагина.
## Middleware плагин
Middleware плагины могут менять API, добавляя конечные обработчики или перехватывая запросы.
```flow
interface verdaccio$IPluginMiddleware extends verdaccio$IPlugin {
register_middlewares(app: any, auth: IBasicAuth, storage: IStorageManager): void;
}
```
### register_middlewares
Метод предоставляет полный доступ к аутентификации и хранилищу через `auth` и `storage`. `app` это приложение express, которое позволяет добавлять новые обработчики запросов (так называемые endpoint).
> Очень хорошим примером middleware-плагина является [sinopia-github-oauth](https://github.com/soundtrackyourbrand/sinopia-github-oauth) и [verdaccio-audit](https://github.com/verdaccio/verdaccio-audit).
### API
```js
function register_middlewares(expressApp, authInstance, storageInstance) {
/* реализация плагина */
}
```
Для регистрации плагина, нам нужен объект с единственным методом, называемым `register_middlewares`, который принимает три аргумента (`expressApp, auth, storage`). *Auth* это экземпляр авторизации и *storage* так же является экземпляром главного хранилища, который предоставит доступ ко всем действиям над ним.
## Плагин хранилища
По умолчанию Verdaccio использует плагин хранилища в файловой системе [local-storage](https://github.com/verdaccio/local-storage), но, начиная с `verdaccio@3.x` вы можете устновить свой плагин хранлища, заменив тем самым поведение по умолчанию.
### API
API хранилища немного сложнее, вам потребуется создать класс, реализующий интерфейс `IPluginStorage`. Детали представлены ниже.
```flow
class LocalDatabase<IPluginStorage>{
constructor(config: $Subtype<verdaccio$Config>, logger: verdaccio$Logger): ILocalData;
}
interface IPluginStorage {
logger: verdaccio$Logger;
config: $Subtype<verdaccio$Config>;
add(name: string, callback: verdaccio$Callback): void;
remove(name: string, callback: verdaccio$Callback): void;
get(callback: verdaccio$Callback): void;
getSecret(): Promise<string>;
setSecret(secret: string): Promise<any>;
getPackageStorage(packageInfo: string): verdaccio$IPackageStorage;
search(onPackage: verdaccio$Callback, onEnd: verdaccio$Callback, validateName: Function): void;
}
interface IPackageStorageManager {
path: string;
logger: verdaccio$Logger;
writeTarball(name: string): verdaccio$IUploadTarball;
readTarball(name: string): verdaccio$IReadTarball;
readPackage(fileName: string, callback: verdaccio$Callback): void;
createPackage(name: string, value: verdaccio$Package, cb: verdaccio$Callback): void;
deletePackage(fileName: string, callback: verdaccio$Callback): void;
removePackage(callback: verdaccio$Callback): void;
updatePackage(pkgFileName: string,
updateHandler: verdaccio$Callback,
onWrite: verdaccio$Callback,
transformPackage: Function,
onEnd: verdaccio$Callback): void;
savePackage(fileName: string, json: verdaccio$Package, callback: verdaccio$Callback): void;
}
class verdaccio$IUploadTarball extends stream$PassThrough {
abort: Function;
done: Function;
_transform: Function;
abort(): void;
done(): void;
}
class verdaccio$IReadTarball extends stream$PassThrough {
abort: Function;
abort(): void;
}
```
> API хранилища всё ещё остаётся экспериментальным и может измениться в следующих минорных версиях. Для получения актуальной информации о API Хранилища пожалуйста перейдите к [типам определённым в нашем репозитории](https://github.com/verdaccio/flow-types).
### Пример плагина хранилища
Данный список плагинов реализует API Хранилища и может использоваться вами как пример.
* [verdaccio-memory](https://github.com/verdaccio/verdaccio-memory)
* [local-storage](https://github.com/verdaccio/local-storage)
* [verdaccio-google-cloud](https://github.com/verdaccio/verdaccio-google-cloud)
* [verdaccio-s3-storage](https://github.com/Remitly/verdaccio-s3-storage/tree/s3)
> Вы собираетесь способствовать разработке нового плагина хранилища? [Загляните сюда.](https://github.com/verdaccio/verdaccio/issues/103#issuecomment-357478295)