feat: gitlab triggers integration

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

@@ -0,0 +1,24 @@
+import { IGlobalVariable } from '@automatisch/types';
+import { URLSearchParams } from 'url';
+
+export default async function generateAuthUrl($: IGlobalVariable) {
+  // ref: https://docs.gitlab.com/ee/api/oauth2.html#authorization-code-flow
+
+  const scopes = ['api', 'read_user'];
+
+  const searchParams = new URLSearchParams({
+    client_id: $.auth.data.clientId as string,
+    redirect_uri: $.auth.data.oAuthRedirectUrl as string,
+    scope: scopes.join(' '),
+    response_type: 'code',
+    state: `${Date.now()}`,
+  });
+
+  const url = `${
+    $.auth.data.oInstanceUrl
+  }/oauth/authorize?${searchParams.toString()}`;
+
+  await $.auth.set({
+    url,
+  });
+}

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

@@ -0,0 +1,63 @@
+import generateAuthUrl from './generate-auth-url';
+import verifyCredentials from './verify-credentials';
+import isStillVerified from './is-still-verified';
+import refreshToken from './refresh-token';
+
+export default {
+  fields: [
+    {
+      key: 'oInstanceUrl',
+      label: 'Gitlab instance URL',
+      type: 'string' as const,
+      required: false,
+      readOnly: false,
+      value: 'https://gitlab.com',
+      placeholder: 'https://gitlab.com',
+      description: 'Your Gitlab instance URL. Default is https://gitlab.com.',
+      docUrl: 'https://automatisch.io/docs/gitlab#oauth-redirect-url',
+      clickToCopy: true,
+    },
+    {
+      key: 'oAuthRedirectUrl',
+      label: 'OAuth Redirect URL',
+      type: 'string' as const,
+      required: true,
+      readOnly: true,
+      value: '{WEB_APP_URL}/app/gitlab/connections/add',
+      placeholder: null,
+      description:
+        'When asked to input an OAuth callback or redirect URL in Gitlab OAuth, enter the URL above.',
+      docUrl: 'https://automatisch.io/docs/gitlab#oauth-redirect-url',
+      clickToCopy: true,
+    },
+    {
+      key: 'clientId',
+      label: 'Client ID',
+      type: 'string' as const,
+      required: true,
+      readOnly: false,
+      value: null,
+      placeholder: null,
+      description: null,
+      docUrl: 'https://automatisch.io/docs/gitlab#client-id',
+      clickToCopy: false,
+    },
+    {
+      key: 'clientSecret',
+      label: 'Client Secret',
+      type: 'string' as const,
+      required: true,
+      readOnly: false,
+      value: null,
+      placeholder: null,
+      description: null,
+      docUrl: 'https://automatisch.io/docs/gitlab#client-secret',
+      clickToCopy: false,
+    },
+  ],
+
+  generateAuthUrl,
+  refreshToken,
+  verifyCredentials,
+  isStillVerified,
+};

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

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

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

@@ -0,0 +1,24 @@
+import { IGlobalVariable } from '@automatisch/types';
+import { URLSearchParams } from 'url';
+
+const refreshToken = async ($: IGlobalVariable) => {
+  // ref: https://docs.gitlab.com/ee/api/oauth2.html#authorization-code-flow
+
+  const params = new URLSearchParams({
+    grant_type: 'refresh_token',
+    client_id: $.auth.data.clientId as string,
+    client_secret: $.auth.data.clientSecret as string,
+    refresh_token: $.auth.data.refreshToken as string,
+  });
+
+  const { data } = await $.http.post('/oauth/token', params.toString());
+
+  await $.auth.set({
+    accessToken: data.access_token,
+    expiresIn: data.expires_in,
+    tokenType: data.token_type,
+    refreshToken: data.refresh_token,
+  });
+};
+
+export default refreshToken;

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

@@ -0,0 +1,41 @@
+import { IGlobalVariable } from '@automatisch/types';
+import getCurrentUser from '../common/get-current-user';
+
+const verifyCredentials = async ($: IGlobalVariable) => {
+  // ref: https://docs.gitlab.com/ee/api/oauth2.html#authorization-code-flow
+
+  const response = await $.http.post(
+    `${$.auth.data.oInstanceUrl}/oauth/token`,
+    {
+      client_id: $.auth.data.clientId,
+      client_secret: $.auth.data.clientSecret,
+      code: $.auth.data.code,
+      grant_type: 'authorization_code',
+      redirect_uri: $.auth.data.oAuthRedirectUrl,
+    },
+    {
+      headers: {
+        Accept: 'application/json',
+      },
+    }
+  );
+
+  const data = response.data;
+
+  $.auth.data.accessToken = data.access_token;
+
+  const currentUser = await getCurrentUser($);
+
+  await $.auth.set({
+    clientId: $.auth.data.clientId,
+    clientSecret: $.auth.data.clientSecret,
+    accessToken: data.access_token,
+    refreshToken: data.refresh_token,
+    scope: data.scope,
+    tokenType: data.token_type,
+    userId: currentUser.id,
+    screenName: currentUser.username,
+  });
+};
+
+export default verifyCredentials;