#14: add captcha support for resend-activation

src/components/auth/actions.js

@@ -103,9 +103,9 @@ export function activate({key = ''}) {
     );
 }
 
-export function resendActivation({email = ''}) {
+export function resendActivation({email = '', captcha}) {
     return wrapInLoader((dispatch) =>
-        signup.resendActivation({email})
+        signup.resendActivation({email, captcha})
             .then((resp) => {
                 dispatch(updateUser({
                     email

src/components/auth/resendActivation/ResendActivationBody.jsx

@@ -2,7 +2,7 @@ import React from 'react';
 
 import { FormattedMessage as Message } from 'react-intl';
 
-import { Input } from 'components/ui/form';
+import { Input, Captcha } from 'components/ui/form';
 import registerMessages from 'components/auth/register/Register.intl.json';
 
 import BaseAuthBody from 'components/auth/BaseAuthBody';
@@ -25,16 +25,16 @@ export default class ResendActivation extends BaseAuthBody {
                     <Message {...messages.specifyYourEmail} />
                 </div>
 
-                <div className={styles.formRow}>
-                    <Input {...this.bindField('email')}
-                        icon="envelope"
-                        color="blue"
-                        type="email"
-                        required
-                        placeholder={registerMessages.yourEmail}
-                        defaultValue={this.context.user.email}
-                    />
-                </div>
+                <Input {...this.bindField('email')}
+                    icon="envelope"
+                    color="blue"
+                    type="email"
+                    required
+                    placeholder={registerMessages.yourEmail}
+                    defaultValue={this.context.user.email}
+                />
+
+                <Captcha {...this.bindField('captcha')} />
             </div>
         );
     }

src/components/ui/form/Captcha.jsx

@@ -0,0 +1,38 @@
+import React, { PropTypes } from 'react';
+
+import captcha from 'services/captcha';
+import { skins, SKIN_DARK } from 'components/ui';
+
+import styles from './form.scss';
+import FormInputComponent from './FormInputComponent';
+
+export default class Captcha extends FormInputComponent {
+    static displayName = 'Captcha';
+
+    static propTypes = {
+        skin: PropTypes.oneOf(skins)
+    };
+
+    static defaultProps = {
+        skin: SKIN_DARK
+    };
+
+    componentDidMount() {
+        captcha.render(this.el, {
+            skin: this.props.skin,
+            onSetCode: this.setCode
+        });
+    }
+
+    render() {
+        return (
+            <div ref={this.setEl} className={styles.captcha} />
+        );
+    }
+
+    getValue() {
+        return this.state && this.state.code;
+    }
+
+    setCode = (code) => this.setState({code});
+}

src/components/ui/form/form.scss

@@ -295,6 +295,15 @@
     }
 }
 
+.captcha {
+    width: 302px;
+    height: 76px;
+    // minimum captcha width is 302px, which can not be changed
+    // using transform to scale down to 296px
+    transform-origin: 0;
+    transform: scaleX(0.98);
+}
+
 /**
  * Form validation
  */

src/components/ui/form/index.js

@@ -5,6 +5,7 @@ import Button from './Button';
 import Form from './Form';
 import FormModel from './FormModel';
 import Dropdown from './Dropdown';
+import Captcha from './Captcha';
 import FormError from './FormError';
 
 export {
@@ -15,5 +16,6 @@ export {
     Form,
     FormModel,
     Dropdown,
+    Captcha,
     FormError
 };

src/components/user/actions.js

@@ -1,6 +1,7 @@
 import { routeActions } from 'react-router-redux';
 
 import request from 'services/request';
+import captcha from 'services/captcha';
 import accounts from 'services/api/accounts';
 import authentication from 'services/api/authentication';
 import { setLocale } from 'components/i18n/actions';
@@ -27,6 +28,9 @@ export function changeLang(lang) {
                 accounts.changeLang(lang);
             }
 
+            // TODO: probably should be moved from here, because it is side effect
+            captcha.setLang(lang);
+
             dispatch({
                 type: CHANGE_LANG,
                 payload: {

src/components/user/factory.js

@@ -3,7 +3,7 @@ import { authenticate, changeLang } from 'components/user/actions';
 /**
  * Initializes User state with the fresh data
  *
- * @param  {Object} store - redux store
+ * @param {object} store - redux store
  *
  * @return {Promise} a promise, that resolves in User state
  */

src/functions.js

@@ -18,3 +18,25 @@ export function omit(obj, keys) {
 
     return newObj;
 }
+
+/**
+ * Asynchronously loads script
+ *
+ * @param {string} src
+ *
+ * @return {Promise}
+ */
+export function loadScript(src) {
+    const script = document.createElement('script');
+
+    script.async = true;
+    script.defer = true;
+    script.src = src;
+
+    return new Promise((resolve, reject) => {
+        script.onlaod = resolve;
+        script.onerror = reject;
+
+        document.body.appendChild(script);
+    });
+}

src/index.js

@@ -11,6 +11,9 @@ import { IntlProvider } from 'components/i18n';
 import routesFactory from 'routes';
 import storeFactory from 'storeFactory';
 import bsodFactory from 'components/ui/bsod/factory';
+import captcha from 'services/captcha';
+
+captcha.setApiKey('6LdUZiYTAAAAAEjDGi9kEu0MRKYHYWskPFNXSYOV'); // TODO
 
 const store = storeFactory();
 

src/services/api/signup.js

@@ -22,10 +22,10 @@ export default {
         );
     },
 
-    resendActivation({email = ''}) {
+    resendActivation({email = '', captcha}) {
         return request.post(
             '/api/signup/repeat-message',
-            {email}
+            {email, captcha}
         );
     }
 };

src/services/captcha.js

@@ -0,0 +1,59 @@
+import { loadScript } from 'functions';
+
+let readyPromise;
+let lang = 'en';
+let sitekey;
+
+export default {
+    /**
+     * @param {DOMNode|string} el - dom node or id of element where to render captcha
+     * @param {string} options.skin - skin color (dark|light)
+     * @param {function} options.onSetCode - the callback, that will be called with
+     *                                       captcha verification code, after user successfully solves captcha
+     *
+     * @return {Promise}
+     */
+    render(el, {skin: theme, onSetCode: callback}) {
+        if (!sitekey) {
+            throw new Error('Site key is required to render captcha');
+        }
+
+        return loadApi().then(() =>
+            window.grecaptcha.render(el, {
+                sitekey,
+                theme,
+                callback
+            })
+        );
+    },
+
+    /**
+     * @param {stirng} newLang
+     *
+     * @see https://developers.google.com/recaptcha/docs/language
+     */
+    setLang(newLang) {
+        lang = newLang;
+    },
+
+    /**
+     * @param {string} apiKey
+     *
+     * @see http://www.google.com/recaptcha/admin
+     */
+    setApiKey(apiKey) {
+        sitekey = apiKey;
+    }
+};
+
+function loadApi() {
+    if (!readyPromise) {
+        readyPromise = new Promise((resolve) => {
+            window.onReCaptchaReady = resolve;
+        });
+
+        loadScript(`https://www.google.com/recaptcha/api.js?onload=onReCaptchaReady&render=explicit&hl=${lang}`);
+    }
+
+    return readyPromise;
+}