Merge pull request #1351 from automatisch/AUT-343

feat(youtube): add youtube integration

packages/backend/src/apps/youtube/assets/favicon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 158 110" enable-background="new 0 0 158 110" xml:space="preserve" width="158"  height="110" >
+<path fill="#f00" d="M154.4,17.5c-1.8-6.7-7.1-12-13.9-13.8C128.2,0.5,79,0.5,79,0.5s-48.3-0.2-60.6,3 c-6.8,1.8-13.3,7.3-15.1,14C0,29.7,0.3,55,0.3,55S0,80.3,3.3,92.5c1.8,6.7,8.4,12.2,15.1,14c12.3,3.3,60.6,3,60.6,3s48.3,0.2,60.6-3 c6.8-1.8,13.1-7.3,14.9-14c3.3-12.1,3.3-37.5,3.3-37.5S157.7,29.7,154.4,17.5z"/>
+<polygon fill="#fff" points="63.9,79.2 103.2,55 63.9,30.8 "/>
+</svg>

packages/backend/src/apps/youtube/auth/generate-auth-url.ts

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+import { IField, IGlobalVariable } from '@automatisch/types';
+import { URLSearchParams } from 'url';
+import authScope from '../common/auth-scope';
+
+export default async function generateAuthUrl($: IGlobalVariable) {
+  const oauthRedirectUrlField = $.app.auth.fields.find(
+    (field: IField) => field.key == 'oAuthRedirectUrl'
+  );
+  const redirectUri = oauthRedirectUrlField.value as string;
+  const searchParams = new URLSearchParams({
+    client_id: $.auth.data.clientId as string,
+    redirect_uri: redirectUri,
+    response_type: 'code',
+    scope: authScope.join(' '),
+    access_type: 'offline',
+    prompt: 'select_account',
+  });
+
+  const url = `https://accounts.google.com/o/oauth2/v2/auth?${searchParams.toString()}`;
+
+  await $.auth.set({
+    url,
+  });
+}

packages/backend/src/apps/youtube/auth/index.ts

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+import generateAuthUrl from './generate-auth-url';
+import verifyCredentials from './verify-credentials';
+import refreshToken from './refresh-token';
+import isStillVerified from './is-still-verified';
+
+export default {
+  fields: [
+    {
+      key: 'oAuthRedirectUrl',
+      label: 'OAuth Redirect URL',
+      type: 'string' as const,
+      required: true,
+      readOnly: true,
+      value: '{WEB_APP_URL}/app/youtube/connections/add',
+      placeholder: null,
+      description:
+        'When asked to input a redirect URL in Google Cloud, enter the URL above.',
+      clickToCopy: true,
+    },
+    {
+      key: 'clientId',
+      label: 'Client ID',
+      type: 'string' as const,
+      required: true,
+      readOnly: false,
+      value: null,
+      placeholder: null,
+      description: null,
+      clickToCopy: false,
+    },
+    {
+      key: 'clientSecret',
+      label: 'Client Secret',
+      type: 'string' as const,
+      required: true,
+      readOnly: false,
+      value: null,
+      placeholder: null,
+      description: null,
+      clickToCopy: false,
+    },
+  ],
+
+  generateAuthUrl,
+  verifyCredentials,
+  isStillVerified,
+  refreshToken,
+};

packages/backend/src/apps/youtube/auth/is-still-verified.ts

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+import { IGlobalVariable } from '@automatisch/types';
+import getCurrentUser from '../common/get-current-user';
+
+const isStillVerified = async ($: IGlobalVariable) => {
+  const currentUser = await getCurrentUser($);
+  return !!currentUser.resourceName;
+};
+
+export default isStillVerified;

packages/backend/src/apps/youtube/auth/refresh-token.ts

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+import { URLSearchParams } from 'node:url';
+import { IGlobalVariable } from '@automatisch/types';
+import authScope from '../common/auth-scope';
+
+const refreshToken = async ($: IGlobalVariable) => {
+  const params = new URLSearchParams({
+    client_id: $.auth.data.clientId as string,
+    client_secret: $.auth.data.clientSecret as string,
+    grant_type: 'refresh_token',
+    refresh_token: $.auth.data.refreshToken as string,
+  });
+
+  const { data } = await $.http.post(
+    'https://oauth2.googleapis.com/token',
+    params.toString()
+  );
+
+  await $.auth.set({
+    accessToken: data.access_token,
+    expiresIn: data.expires_in,
+    scope: authScope.join(' '),
+    tokenType: data.token_type,
+  });
+};
+
+export default refreshToken;

packages/backend/src/apps/youtube/auth/verify-credentials.ts

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+import { IField, IGlobalVariable } from '@automatisch/types';
+import getCurrentUser from '../common/get-current-user';
+
+type TUser = {
+  displayName: string;
+  metadata: {
+    primary: boolean;
+  };
+};
+
+type TEmailAddress = {
+  value: string;
+  metadata: {
+    primary: boolean;
+  };
+};
+
+const verifyCredentials = async ($: IGlobalVariable) => {
+  const oauthRedirectUrlField = $.app.auth.fields.find(
+    (field: IField) => field.key == 'oAuthRedirectUrl'
+  );
+  const redirectUri = oauthRedirectUrlField.value as string;
+  const { data } = await $.http.post(`https://oauth2.googleapis.com/token`, {
+    client_id: $.auth.data.clientId,
+    client_secret: $.auth.data.clientSecret,
+    code: $.auth.data.code,
+    grant_type: 'authorization_code',
+    redirect_uri: redirectUri,
+  });
+
+  await $.auth.set({
+    accessToken: data.access_token,
+    tokenType: data.token_type,
+  });
+
+  const currentUser = await getCurrentUser($);
+
+  const { displayName } = currentUser.names.find(
+    (name: TUser) => name.metadata.primary
+  );
+  const { value: email } = currentUser.emailAddresses.find(
+    (emailAddress: TEmailAddress) => emailAddress.metadata.primary
+  );
+
+  await $.auth.set({
+    clientId: $.auth.data.clientId,
+    clientSecret: $.auth.data.clientSecret,
+    scope: $.auth.data.scope,
+    idToken: data.id_token,
+    expiresIn: data.expires_in,
+    refreshToken: data.refresh_token,
+    resourceName: currentUser.resourceName,
+    screenName: `${displayName} - ${email}`,
+  });
+};
+
+export default verifyCredentials;

packages/backend/src/apps/youtube/common/add-auth-header.ts

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+import { TBeforeRequest } from '@automatisch/types';
+
+const addAuthHeader: TBeforeRequest = ($, requestConfig) => {
+  if ($.auth.data?.accessToken) {
+    requestConfig.headers.Authorization = `${$.auth.data.tokenType} ${$.auth.data.accessToken}`;
+  }
+
+  return requestConfig;
+};
+
+export default addAuthHeader;

packages/backend/src/apps/youtube/common/auth-scope.ts

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+const authScope: string[] = [
+  'https://www.googleapis.com/auth/youtube',
+  'https://www.googleapis.com/auth/youtube.readonly',
+  'https://www.googleapis.com/auth/youtube.upload',
+  'https://www.googleapis.com/auth/userinfo.email',
+  'https://www.googleapis.com/auth/userinfo.profile',
+];
+
+export default authScope;

packages/backend/src/apps/youtube/common/get-current-user.ts

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+import { IGlobalVariable } from '@automatisch/types';
+
+const getCurrentUser = async ($: IGlobalVariable) => {
+  const { data: currentUser } = await $.http.get(
+    'https://people.googleapis.com/v1/people/me?personFields=names,emailAddresses'
+  );
+  return currentUser;
+};
+
+export default getCurrentUser;

packages/backend/src/apps/youtube/index.ts

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+import defineApp from '../../helpers/define-app';
+import addAuthHeader from './common/add-auth-header';
+import auth from './auth';
+
+export default defineApp({
+  name: 'Youtube',
+  key: 'youtube',
+  baseUrl: 'https://www.youtube.com/',
+  apiBaseUrl: 'https://www.googleapis.com/youtube',
+  iconUrl: '{BASE_URL}/apps/youtube/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/apps/youtube/connection',
+  primaryColor: 'FF0000',
+  supportsConnections: true,
+  beforeRequest: [addAuthHeader],
+  auth,
+});