recaptcha: init support

packages/recaptcha/handler.ts

@@ -0,0 +1,26 @@
+import superagent from 'superagent';
+import { ValidationError } from 'hydrooj/dist/error';
+import { PRIV } from 'hydrooj/dist/model/builtin';
+import * as system from 'hydrooj/dist/model/system';
+import * as bus from 'hydrooj/dist/service/bus';
+
+bus.on('handler/before/UserRegister', async (thisArg) => {
+    if (thisArg.request.method !== 'post') {
+        thisArg.UiContext.recaptchaKey = system.get('recaptcha.key');
+        return;
+    }
+    if (thisArg.user.hasPriv(PRIV.PRIV_UNLIMITED_ACCESS)) return;
+    if (!thisArg.args.captcha) throw new ValidationError('captcha');
+    const response = await superagent.post('https://recaptcha.net/recaptcha/api/siteverify')
+        .field('secret', system.get('recaptcha.secret'))
+        .field('response', thisArg.args.captcha)
+        .field('remoteip', thisArg.request.ip);
+    if (!response.body.success) throw new ValidationError('captcha fail');
+});
+
+bus.on('handler/after/UserRegister', async (thisArg) => {
+    thisArg.response.body.captcha = `\
+    <script src="https://recaptcha.net/recaptcha/api.js?render=${system.get('recaptcha.key')}"></script>
+    <input type="text" name="captcha" id="_captcha" style="display:none">
+    <input type="submit" id="_submit" style="display:none">`;
+});

packages/recaptcha/package.json

@@ -0,0 +1,12 @@
+{
+    "name": "@hydrooj/recaptcha",
+    "version": "1.0.0",
+    "description": "Google reCAPTCHA",
+    "main": "package.json",
+    "repository": "https://github.com/hydro-dev/Hydro.git",
+    "author": "undefined",
+    "license": "AGPL-3.0-only",
+    "dependencies": {
+        "superagent": "^6.1.0"
+    }
+}

packages/recaptcha/public/captcha-main.page.js

@@ -0,0 +1,18 @@
+(() => {
+    const { AutoloadPage } = window.Hydro;
+
+    const page = new AutoloadPage('recaptcha', () => {
+        function captcha(event) {
+            event.preventDefault();
+            grecaptcha.ready(function () {
+                grecaptcha.execute(UiContext.recaptchaKey, { action: 'submit' }).then(function (token) {
+                    document.getElementById('_captcha').value = token;
+                    document.getElementById('_submit').click();
+                });
+            });
+        }
+        document.getElementById('submit').onclick = captcha;
+    });
+
+    window.Hydro.extraPages.push(page);
+})();

packages/recaptcha/setting.yaml

@@ -0,0 +1,4 @@
+key:
+  type: text
+secret:
+  type: text