Deprecate API v2 (#7761)

* deprecate api-v2

* remove v2 test helpers

* remove unused string

website/server/libs/webhook.js

@@ -0,0 +1,31 @@
+import { each } from 'lodash';
+import { post } from 'request';
+import { isURL } from 'validator';
+import logger from './logger';
+
+let _sendWebhook = (url, body) => {
+  post({
+    url,
+    body,
+    json: true,
+  }, (err) => logger.error(err));
+};
+
+let _isInvalidWebhook = (hook) => {
+  return !hook.enabled || !isURL(hook.url);
+};
+
+export function sendTaskWebhook (webhooks, data) {
+  each(webhooks, (hook) => {
+    if (_isInvalidWebhook(hook)) return;
+
+    let body = {
+      direction: data.task.direction,
+      task: data.task.details,
+      delta: data.task.delta,
+      user: data.user,
+    };
+
+    _sendWebhook(hook.url, body);
+  });
+}