1 files changed, 58 insertions, 0 deletions

diff --git a/server/middlewares/validators/user-subscriptions.ts b/server/middlewares/validators/user-subscriptions.ts
new file mode 100644
index 000000000..f331b6c34
--- /dev/null
+++ b/server/middlewares/validators/user-subscriptions.ts
@@ -0,0 +1,58 @@
+import * as express from 'express'
+import 'express-validator'
+import { body, param } from 'express-validator/check'
+import { logger } from '../../helpers/logger'
+import { areValidationErrors } from './utils'
+import { ActorFollowModel } from '../../models/activitypub/actor-follow'
+import { isValidActorHandle } from '../../helpers/custom-validators/activitypub/actor'
+import { UserModel } from '../../models/account/user'
+import { CONFIG } from '../../initializers'
+
+const userSubscriptionAddValidator = [
+  body('uri').custom(isValidActorHandle).withMessage('Should have a valid URI to follow (username@domain)'),
+
+  (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking userSubscriptionAddValidator parameters', { parameters: req.body })
+
+    if (areValidationErrors(req, res)) return
+
+    return next()
+  }
+]
+
+const userSubscriptionRemoveValidator = [
+  param('uri').custom(isValidActorHandle).withMessage('Should have a valid URI to unfollow'),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking unfollow parameters', { parameters: req.params })
+
+    if (areValidationErrors(req, res)) return
+
+    let [ name, host ] = req.params.uri.split('@')
+    if (host === CONFIG.WEBSERVER.HOST) host = null
+
+    const user: UserModel = res.locals.oauth.token.User
+    const subscription = await ActorFollowModel.loadByActorAndTargetNameAndHost(user.Account.Actor.id, name, host)
+
+    if (!subscription) {
+      return res
+        .status(404)
+        .json({
+          error: `Subscription ${req.params.uri} not found.`
+        })
+        .end()
+    }
+
+    res.locals.subscription = subscription
+    return next()
+  }
+]
+
+// ---------------------------------------------------------------------------
+
+export {
+  userSubscriptionAddValidator,
+  userSubscriptionRemoveValidator
+}
+
+// ---------------------------------------------------------------------------