Add ability for users to block an account/instance on server side

1 files changed, 94 insertions, 0 deletions

diff --git a/server/middlewares/validators/blocklist.ts b/server/middlewares/validators/blocklist.ts
new file mode 100644
index 000000000..9dbd5e512
--- /dev/null
+++ b/server/middlewares/validators/blocklist.ts
@@ -0,0 +1,94 @@
+import { param, body } from 'express-validator/check'
+import * as express from 'express'
+import { logger } from '../../helpers/logger'
+import { areValidationErrors } from './utils'
+import { isAccountNameWithHostExist } from '../../helpers/custom-validators/accounts'
+import { UserModel } from '../../models/account/user'
+import { AccountBlocklistModel } from '../../models/account/account-blocklist'
+import { isHostValid } from '../../helpers/custom-validators/servers'
+import { ServerBlocklistModel } from '../../models/server/server-blocklist'
+
+const blockAccountByAccountValidator = [
+  body('accountName').exists().withMessage('Should have an account name with host'),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking blockAccountByAccountValidator parameters', { parameters: req.body })
+
+    if (areValidationErrors(req, res)) return
+    if (!await isAccountNameWithHostExist(req.body.accountName, res)) return
+
+    return next()
+  }
+]
+
+const unblockAccountByAccountValidator = [
+  param('accountName').exists().withMessage('Should have an account name with host'),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking unblockAccountByAccountValidator parameters', { parameters: req.params })
+
+    if (areValidationErrors(req, res)) return
+    if (!await isAccountNameWithHostExist(req.params.accountName, res)) return
+
+    const user = res.locals.oauth.token.User as UserModel
+    const targetAccount = res.locals.account
+    if (!await isUnblockAccountExists(user.Account.id, targetAccount.id, res)) return
+
+    return next()
+  }
+]
+
+const unblockServerByAccountValidator = [
+  param('host').custom(isHostValid).withMessage('Should have an account name with host'),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking unblockServerByAccountValidator parameters', { parameters: req.params })
+
+    if (areValidationErrors(req, res)) return
+
+    const user = res.locals.oauth.token.User as UserModel
+    if (!await isUnblockServerExists(user.Account.id, req.params.host, res)) return
+
+    return next()
+  }
+]
+
+// ---------------------------------------------------------------------------
+
+export {
+  blockAccountByAccountValidator,
+  unblockAccountByAccountValidator,
+  unblockServerByAccountValidator
+}
+
+// ---------------------------------------------------------------------------
+
+async function isUnblockAccountExists (accountId: number, targetAccountId: number, res: express.Response) {
+  const accountBlock = await AccountBlocklistModel.loadByAccountAndTarget(accountId, targetAccountId)
+  if (!accountBlock) {
+    res.status(404)
+       .send({ error: 'Account block entry not found.' })
+       .end()
+
+    return false
+  }
+
+  res.locals.accountBlock = accountBlock
+
+  return true
+}
+
+async function isUnblockServerExists (accountId: number, host: string, res: express.Response) {
+  const serverBlock = await ServerBlocklistModel.loadByAccountAndHost(accountId, host)
+  if (!serverBlock) {
+    res.status(404)
+       .send({ error: 'Server block entry not found.' })
+       .end()
+
+    return false
+  }
+
+  res.locals.serverBlock = serverBlock
+
+  return true
+}