Unfurling of Slack links (#487)

* First pass: Unfurling of Slack links

* Add authentication in db

* Call associate on Event correctly

* Add SLACK_APP_ID, remove SLACK_REDIRECT_URI, tidy env sample

* PR feedback

* Comment clarify

server/models/Authentication.js

@@ -0,0 +1,26 @@
+// @flow
+import { DataTypes, sequelize, encryptedFields } from '../sequelize';
+
+const Authentication = sequelize.define('authentication', {
+  id: {
+    type: DataTypes.UUID,
+    defaultValue: DataTypes.UUIDV4,
+    primaryKey: true,
+  },
+  serviceId: DataTypes.STRING,
+  scopes: DataTypes.ARRAY(DataTypes.STRING),
+  token: encryptedFields.vault('token'),
+});
+
+Authentication.associate = models => {
+  Authentication.belongsTo(models.User, {
+    as: 'user',
+    foreignKey: 'userId',
+  });
+  Authentication.belongsTo(models.Team, {
+    as: 'team',
+    foreignKey: 'teamId',
+  });
+};
+
+export default Authentication;

server/models/Document.js

@@ -2,12 +2,15 @@
 import slug from 'slug';
 import _ from 'lodash';
 import randomstring from 'randomstring';
+import MarkdownSerializer from 'slate-md-serializer';
+import Plain from 'slate-plain-serializer';
 
 import isUUID from 'validator/lib/isUUID';
 import { DataTypes, sequelize } from '../sequelize';
 import parseTitle from '../../shared/utils/parseTitle';
 import Revision from './Revision';
 
+const Markdown = new MarkdownSerializer();
 const URL_REGEX = /^[a-zA-Z0-9-]*-([a-zA-Z0-9]{10,15})$/;
 
 // $FlowIssue invalid flow-typed
@@ -203,6 +206,13 @@ Document.searchForUser = async (
 
 // Instance methods
 
+Document.prototype.getSummary = function() {
+  const value = Markdown.deserialize(this.text);
+  const plain = Plain.serialize(value);
+  const lines = _.compact(plain.split('\n'));
+  return lines.length >= 1 ? lines[1] : '';
+};
+
 Document.prototype.getUrl = function() {
   const slugifiedTitle = slugify(this.title);
   return `/doc/${slugifiedTitle}-${this.urlId}`;

server/models/Event.js

@@ -9,30 +9,6 @@ const Event = sequelize.define('event', {
   },
   name: DataTypes.STRING,
   data: DataTypes.JSONB,
-
-  userId: {
-    type: 'UUID',
-    allowNull: true,
-    references: {
-      model: 'users',
-    },
-  },
-
-  collectionId: {
-    type: 'UUID',
-    allowNull: true,
-    references: {
-      model: 'collections',
-    },
-  },
-
-  teamId: {
-    type: 'UUID',
-    allowNull: true,
-    references: {
-      model: 'teams',
-    },
-  },
 });
 
 Event.associate = models => {

server/models/User.js

@@ -2,12 +2,11 @@
 import crypto from 'crypto';
 import bcrypt from 'bcrypt';
 import uuid from 'uuid';
+import JWT from 'jsonwebtoken';
 import { DataTypes, sequelize, encryptedFields } from '../sequelize';
 import { uploadToS3FromUrl } from '../utils/s3';
 import mailer from '../mailer';
 
-import JWT from 'jsonwebtoken';
-
 const BCRYPT_COST = process.env.NODE_ENV !== 'production' ? 4 : 12;
 
 const User = sequelize.define(

server/models/index.js

@@ -1,4 +1,6 @@
 // @flow
+import Authentication from './Authentication';
+import Event from './Event';
 import User from './User';
 import Team from './Team';
 import Collection from './Collection';
@@ -9,6 +11,8 @@ import View from './View';
 import Star from './Star';
 
 const models = {
+  Authentication,
+  Event,
   User,
   Team,
   Collection,
@@ -26,4 +30,15 @@ Object.keys(models).forEach(modelName => {
   }
 });
 
-export { User, Team, Collection, Document, Revision, ApiKey, View, Star };
+export {
+  Authentication,
+  Event,
+  User,
+  Team,
+  Collection,
+  Document,
+  Revision,
+  ApiKey,
+  View,
+  Star,
+};