feat: cleaner error handling and basic client tests

This commit is contained in:
Eric Maciel 2021-01-08 17:27:57 -05:00
parent c8df4f7ad0
commit f425635cf8
17 changed files with 512 additions and 896 deletions

View File

@ -48,9 +48,9 @@ const decorator = useCursor(editor)
## Backend
```ts
const { SocketIOConnection } = require('@hiveteams/collab-backend')
const { AutomergeCollaboration } = require('@hiveteams/collab-backend')
const connection = new SocketIOConnection(options)
const collabBackend = new AutomergeCollaboration(options)
```
### options:

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@ -53,7 +53,6 @@ class AutomergeBackend {
closeConnection(id: string) {
this.connectionMap[id]?.close()
delete this.connectionMap[id]
}
@ -62,16 +61,12 @@ class AutomergeBackend {
*/
receiveOperation = (id: string, data: CollabAction) => {
try {
if (!this.connectionMap[id]) {
debugCollabBackend('Could not receive op for closed connection %s', id)
return
}
this.connectionMap[id].receiveMsg(data.payload)
} catch (e) {
console.error('Unexpected error in receiveOperation', e)
if (!this.connectionMap[id]) {
debugCollabBackend('Could not receive op for closed connection %s', id)
return
}
this.connectionMap[id].receiveMsg(data.payload)
}
/**
@ -85,19 +80,15 @@ class AutomergeBackend {
*/
appendDocument = (docId: string, data: Node[]) => {
try {
if (this.getDocument(docId)) {
throw new Error(`Already has document with id: ${docId}`)
}
const sync = toSync({ cursors: {}, children: data })
const doc = Automerge.from<SyncDoc>(sync)
this.documentSetMap[docId] = new Automerge.DocSet<SyncDoc>()
this.documentSetMap[docId].setDoc(docId, doc)
} catch (e) {
console.error(e, docId)
if (this.getDocument(docId)) {
throw new Error(`Already has document with id: ${docId}`)
}
const sync = toSync({ cursors: {}, children: data })
const doc = Automerge.from<SyncDoc>(sync)
this.documentSetMap[docId] = new Automerge.DocSet<SyncDoc>()
this.documentSetMap[docId].setDoc(docId, doc)
}
/**
@ -105,10 +96,8 @@ class AutomergeBackend {
*/
removeDocument = (docId: string) => {
if (this.documentSetMap[docId]) {
this.documentSetMap[docId].removeDoc(docId)
delete this.documentSetMap[docId]
}
this.documentSetMap[docId]?.removeDoc(docId)
delete this.documentSetMap[docId]
}
/**
@ -116,19 +105,16 @@ class AutomergeBackend {
*/
garbageCursor = (docId: string, id: string) => {
try {
const doc = this.getDocument(docId)
const doc = this.getDocument(docId)
if (!doc || !doc.cursors) return
// no need to delete cursor if the document or cursors have already been deleted
if (!doc || !doc.cursors) return
const change = Automerge.change(doc, (d: any) => {
delete d.cursors[id]
})
const change = Automerge.change(doc, (d: any) => {
delete d.cursors[id]
})
this.documentSetMap[docId].setDoc(docId, change)
} catch (e) {
console.error('Unexpected error in garbageCursor', e)
}
this.documentSetMap[docId].setDoc(docId, change)
}
}

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@ -1,4 +1,4 @@
import io from 'socket.io'
import io, { Socket } from 'socket.io'
import * as Automerge from 'automerge'
import { Node } from 'slate'
import { Server } from 'http'
@ -8,26 +8,35 @@ import { getClients } from './utils/index'
import { debugCollabBackend } from './utils/debug'
import AutomergeBackend from './AutomergeBackend'
interface ErrorData {
user: any
docId: string
serializedData: string
opData?: string
}
export interface IAutomergeCollaborationOptions {
entry: Server
connectOpts?: SocketIO.ServerOptions
defaultValue: Node[]
saveFrequency?: number
onAuthRequest?: (query: any, socket?: SocketIO.Socket) => Promise<any>
onDocumentLoad?: (pathname: string, query?: any) => Promise<Node[]> | Node[]
onDocumentLoad?: (docId: string, query?: any) => Promise<Node[]> | Node[]
onDocumentSave?: (
pathname: string,
docId: string,
doc: Node[],
user: any
) => Promise<void> | void
onDisconnect?: (pathname: string, user: any) => Promise<void> | void
onDisconnect?: (docId: string, user: any) => Promise<void> | void
onError: (error: Error, data: ErrorData) => Promise<void> | void
}
export default class AutomergeCollaboration {
private io: SocketIO.Server
private options: IAutomergeCollaborationOptions
private backend: AutomergeBackend
public backend: AutomergeBackend
private userMap: { [key: string]: any | undefined }
private autoSaveDoc: (socket: SocketIO.Socket, docId: string) => void
/**
* Constructor
@ -44,6 +53,15 @@ export default class AutomergeCollaboration {
this.userMap = {}
/**
* Save document with throttle
*/
this.autoSaveDoc = throttle(
async (socket: SocketIO.Socket, docId: string) =>
this.backend.getDocument(docId) && this.saveDocument(socket, docId),
this.options?.saveFrequency || 2000
)
return this
}
@ -57,6 +75,24 @@ export default class AutomergeCollaboration {
.use(this.authMiddleware)
.on('connect', this.onConnect)
/**
* Construct error data and call onError callback
*/
private handleError(socket: SocketIO.Socket, err: Error, opData?: string) {
const { id } = socket
const { name: docId } = socket.nsp
if (this.options.onError) {
const document = this.backend.getDocument(docId)
this.options.onError(err, {
user: this.userMap[id],
docId: docId,
serializedData: document ? Automerge.save(document) : 'No document',
opData
})
}
}
/**
* Namespace SocketIO middleware. Load document value and append it to CollaborationBackend.
*/
@ -73,13 +109,12 @@ export default class AutomergeCollaboration {
socket: SocketIO.Socket,
next: (e?: any) => void
) => {
const { id } = socket
const { query } = socket.handshake
const { onAuthRequest } = this.options
// we connect before any async logic so that we
// never miss a socket disconnection event
socket.on('disconnect', this.onDisconnect(id, socket))
socket.on('disconnect', this.onDisconnect(socket))
if (onAuthRequest) {
const user = await onAuthRequest(query, socket)
@ -98,55 +133,65 @@ export default class AutomergeCollaboration {
private onConnect = async (socket: SocketIO.Socket) => {
const { id, conn } = socket
// do nothing if the socket connection has already been closed
if (conn.readyState === 'closed') {
return
}
const { name } = socket.nsp
const { name: docId } = socket.nsp
const { onDocumentLoad } = this.options
if (!this.backend.getDocument(name)) {
const doc = onDocumentLoad
? await onDocumentLoad(name)
: this.options.defaultValue
try {
// Load document if no document state is already stored in our automerge backend
if (!this.backend.getDocument(docId)) {
// If the user provided an onDocumentLoad function use that, otherwise use the
// default value that was provided in the options
const doc = onDocumentLoad
? await onDocumentLoad(docId)
: this.options.defaultValue
// Ensure socket is still opened
// recheck ready state after async operation
if (conn.readyState === 'closed') {
return
// Ensure socket is still opened
// recheck websocket connection state after the previous potentially async document load
if (conn.readyState === 'closed') {
return
}
// recheck backend getDocument after async operation
// to avoid duplicatively loading a document
if (!this.backend.getDocument(docId)) {
debugCollabBackend('Append document\t\t%s', id)
this.backend.appendDocument(docId, doc)
}
}
// recheck backend getDocument after async operation
if (!this.backend.getDocument(name)) {
debugCollabBackend('Append document\t\t%s', id)
this.backend.appendDocument(name, doc)
}
}
// Create a new backend connection for this socketId and docId
debugCollabBackend('Create connection\t%s', id)
this.backend.createConnection(
id,
docId,
({ type, payload }: CollabAction) => {
if (payload.docId === docId) {
socket.emit('msg', { type, payload: { id: conn.id, ...payload } })
}
}
)
debugCollabBackend('Create connection\t%s', id)
this.backend.createConnection(
id,
name,
({ type, payload }: CollabAction) => {
socket.emit('msg', { type, payload: { id: conn.id, ...payload } })
}
)
socket.on('msg', this.onMessage(id, name))
socket.join(id, () => {
const doc = this.backend.getDocument(name)
// Setup the on message callback
socket.on('msg', this.onMessage(socket, docId))
const doc = this.backend.getDocument(docId)
if (!doc) {
debugCollabBackend(
'onConnect: No document available at the time of socket.io join docId=%s socketId=%s',
name,
docId,
id
)
return
}
// Emit the socket message needed for receiving the automerge document
// on connect and reconnect
socket.emit('msg', {
type: 'document',
payload: Automerge.save<SyncDoc>(doc)
@ -154,47 +199,41 @@ export default class AutomergeCollaboration {
debugCollabBackend('Open connection\t\t%s', id)
this.backend.openConnection(id)
})
this.garbageCursors(name)
this.garbageCursors(socket)
} catch (err) {
this.handleError(socket, err)
}
}
/**
* On 'message' handler
*/
private onMessage = (id: string, name: string) => (data: any) => {
private onMessage = (socket: SocketIO.Socket, docId: string) => (
data: any
) => {
const { id } = socket
switch (data.type) {
case 'operation':
try {
this.backend.receiveOperation(id, data)
this.autoSaveDoc(id, name)
this.autoSaveDoc(socket, docId)
this.garbageCursors(name)
this.garbageCursors(socket)
} catch (e) {
console.log(e)
this.handleError(socket, e, JSON.stringify(data))
}
}
}
/**
* Save document with throttle
*/
private autoSaveDoc = throttle(
async (id: string, docId: string) =>
this.backend.getDocument(docId) && this.saveDocument(id, docId),
// @ts-ignore: property used before initialization
this.options?.saveFrequency || 2000
)
/**
* Save document
*/
private saveDocument = async (id: string, docId: string) => {
private saveDocument = async (socket: SocketIO.Socket, docId: string) => {
try {
const { id } = socket
const { onDocumentSave } = this.options
const doc = this.backend.getDocument(docId)
@ -212,7 +251,7 @@ export default class AutomergeCollaboration {
await onDocumentSave(docId, toJS(doc.children), user)
}
} catch (e) {
console.error(e, docId)
this.handleError(socket, e)
}
}
@ -220,43 +259,56 @@ export default class AutomergeCollaboration {
* On 'disconnect' handler
*/
private onDisconnect = (id: string, socket: SocketIO.Socket) => async () => {
debugCollabBackend('Connection closed\t%s', id)
this.backend.closeConnection(id)
private onDisconnect = (socket: SocketIO.Socket) => async () => {
try {
const { id } = socket
const { name: docId } = socket.nsp
socket.leave(docId)
await this.saveDocument(id, socket.nsp.name)
debugCollabBackend('Connection closed\t%s', id)
this.backend.closeConnection(id)
// trigger onDisconnect callback if one was provided
// and if a user has been loaded for this socket connection
const user = this.userMap[id]
if (this.options.onDisconnect && user) {
await this.options.onDisconnect(socket.nsp.name, user)
await this.saveDocument(socket, docId)
// trigger onDisconnect callback if one was provided
// and if a user has been loaded for this socket connection
const user = this.userMap[id]
if (this.options.onDisconnect && user) {
await this.options.onDisconnect(docId, user)
}
// cleanup automerge cursor and socket connection
this.garbageCursors(socket)
socket.leave(id)
this.garbageNsp(socket)
// cleanup usermap
delete this.userMap[id]
} catch (err) {
this.handleError(socket, err)
}
// cleanup automerge cursor and socket connection
this.garbageCursors(socket.nsp.name)
socket.leave(id)
this.garbageNsp(id)
// cleanup usermap
delete this.userMap[id]
}
/**
* Clean up unused SocketIO namespaces.
*/
garbageNsp = (id: string) => {
garbageNsp = (socket: SocketIO.Socket) => {
const { name: docId } = socket.nsp
Object.keys(this.io.nsps)
.filter(n => n !== '/')
.forEach(nsp => {
getClients(this.io, nsp).then((clientsList: any) => {
if (!clientsList.length) {
debugCollabBackend('Removing document\t%s', id)
this.backend.removeDocument(nsp)
delete this.io.nsps[nsp]
}
})
getClients(this.io, nsp)
.then((clientsList: any) => {
if (!clientsList.length) {
debugCollabBackend('Removing document\t%s', docId)
this.backend.removeDocument(nsp)
delete this.io.nsps[nsp]
}
})
.catch(err => {
this.handleError(socket, err)
})
})
}
@ -264,19 +316,24 @@ export default class AutomergeCollaboration {
* Clean up unused cursor data.
*/
garbageCursors = (nsp: string) => {
const doc = this.backend.getDocument(nsp)
// if document has already been cleaned up, it is safe to return early
if (!doc || !doc.cursors) return
garbageCursors = (socket: SocketIO.Socket) => {
const { name: docId } = socket.nsp
try {
const doc = this.backend.getDocument(docId)
// if document has already been cleaned up, it is safe to return early
if (!doc || !doc.cursors) return
const namespace = this.io.of(nsp)
const namespace = this.io.of(docId)
Object.keys(doc?.cursors)?.forEach(key => {
if (!namespace.sockets[key]) {
debugCollabBackend('Garbage cursor\t\t%s', key)
this.backend.garbageCursor(nsp, key)
}
})
Object.keys(doc?.cursors)?.forEach(key => {
if (!namespace.sockets[key]) {
debugCollabBackend('Garbage cursor\t\t%s', key)
this.backend.garbageCursor(docId, key)
}
})
} catch (err) {
this.handleError(socket, err)
}
}
/**

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@ -1,282 +0,0 @@
import io from 'socket.io'
import * as Automerge from 'automerge'
import { Node } from 'slate'
import { Server } from 'http'
import throttle from 'lodash/throttle'
import { SyncDoc, CollabAction, toJS } from '@hiveteams/collab-bridge'
import { getClients } from './utils'
import AutomergeBackend from './AutomergeBackend'
import { debugCollabBackend } from './utils/debug'
export interface SocketIOCollaborationOptions {
entry: Server
connectOpts?: SocketIO.ServerOptions
defaultValue: Node[]
saveFrequency?: number
onAuthRequest?: (
query: Object,
socket?: SocketIO.Socket
) => Promise<boolean> | boolean
onDocumentLoad?: (
pathname: string,
query?: Object
) => Promise<Node[]> | Node[]
onDocumentSave?: (pathname: string, doc: Node[]) => Promise<void> | void
}
export default class SocketIOCollaboration {
private io: SocketIO.Server
private options: SocketIOCollaborationOptions
private backend: AutomergeBackend
private autoSaveDoc: (id: string, docId: string) => void
/**
* Constructor
*/
constructor(options: SocketIOCollaborationOptions) {
this.io = io(options.entry, options.connectOpts)
this.backend = new AutomergeBackend()
this.options = options
/**
* Save document with throttle
*/
this.autoSaveDoc = throttle(
async (id: string, docId: string) =>
this.backend.getDocument(docId) && this.saveDocument(id, docId),
this.options?.saveFrequency || 2000
)
this.configure()
return this
}
/**
* Initial IO configuration
*/
private configure = () =>
this.io
.of(this.nspMiddleware)
.use(this.authMiddleware)
.on('connect', this.onConnect)
/**
* Namespace SocketIO middleware. Load document value and append it to CollaborationBackend.
*/
private nspMiddleware = async (path: string, query: any, next: any) => {
return next(null, true)
}
/**
* SocketIO auth middleware. Used for user authentification.
*/
private authMiddleware = async (
socket: SocketIO.Socket,
next: (e?: any) => void
) => {
const { id } = socket
const { query } = socket.handshake
const { onAuthRequest } = this.options
// we connect before any async logic so that we
// never miss a socket disconnection event
socket.on('disconnect', this.onDisconnect(id, socket))
if (onAuthRequest) {
const permit = await onAuthRequest(query, socket)
if (!permit)
return next(new Error(`Authentification error: ${socket.id}`))
}
return next()
}
/**
* On 'connect' handler.
*/
private onConnect = async (socket: SocketIO.Socket) => {
const { id, conn } = socket
// do nothing if the socket connection has already been closed
if (conn.readyState === 'closed') {
return
}
const { name } = socket.nsp
const { onDocumentLoad } = this.options
if (!this.backend.getDocument(name)) {
const doc = onDocumentLoad
? await onDocumentLoad(name)
: this.options.defaultValue
// Ensure socket is still opened
// recheck ready state after async operation
if (conn.readyState === 'closed') {
return
}
// recheck backend getDocument after async operation
if (!this.backend.getDocument(name)) {
debugCollabBackend('Append document\t\t%s', id)
this.backend.appendDocument(name, doc)
}
}
debugCollabBackend('Create connection\t%s', id)
this.backend.createConnection(
id,
name,
({ type, payload }: CollabAction) => {
socket.emit('msg', { type, payload: { id: conn.id, ...payload } })
}
)
socket.on('msg', this.onMessage(id, name))
socket.join(id, () => {
const doc = this.backend.getDocument(name)
if (!doc) {
debugCollabBackend(
'onConnect: No document available at the time of socket.io join docId=%s socketId=%s',
name,
id
)
return
}
socket.emit('msg', {
type: 'document',
payload: Automerge.save<SyncDoc>(doc)
})
debugCollabBackend('Open connection\t\t%s', id)
this.backend.openConnection(id)
})
this.garbageCursors(name)
}
/**
* On 'message' handler
*/
private onMessage = (id: string, name: string) => (data: any) => {
switch (data.type) {
case 'operation':
try {
this.backend.receiveOperation(id, data)
this.autoSaveDoc(id, name)
this.garbageCursors(name)
} catch (e) {
console.log(e)
}
}
}
/**
* Save document
*/
private saveDocument = async (id: string, docId: string) => {
try {
const { onDocumentSave } = this.options
const doc = this.backend.getDocument(docId)
// Return early if there is no valid document in our crdt backend
// Note: this will happen when user disconnects from the collab server
// before document load has completed
if (!doc) {
return
}
onDocumentSave && (await onDocumentSave(docId, toJS(doc.children)))
} catch (e) {
console.error(e, docId)
}
}
/**
* On 'disconnect' handler
*/
private onDisconnect = (id: string, socket: SocketIO.Socket) => async () => {
debugCollabBackend('Connection closed\t%s', id)
this.backend.closeConnection(id)
await this.saveDocument(id, socket.nsp.name)
// cleanup automerge cursor and socket connection
this.garbageCursors(socket.nsp.name)
socket.leave(id)
this.garbageNsp(id)
}
/**
* Clean up unused SocketIO namespaces.
*/
garbageNsp = (id: string) => {
Object.keys(this.io.nsps)
.filter(n => n !== '/')
.forEach(nsp => {
getClients(this.io, nsp).then((clientsList: any) => {
debugCollabBackend(
'Garbage namespace\t%s clientsList=%o %s',
id,
clientsList,
nsp
)
if (!clientsList.length) {
debugCollabBackend('Removing document\t%s', id)
this.backend.removeDocument(nsp)
delete this.io.nsps[nsp]
}
})
})
}
/**
* Clean up unused cursor data.
*/
garbageCursors = (nsp: string) => {
const doc = this.backend.getDocument(nsp)
// if document has already been cleaned up, it is safe to return early
if (!doc || !doc.cursors) return
const namespace = this.io.of(nsp)
Object.keys(doc?.cursors)?.forEach(key => {
if (!namespace.sockets[key]) {
debugCollabBackend('Garbage cursor\t\t%s', key)
this.backend.garbageCursor(nsp, key)
}
})
}
/**
* Destroy SocketIO connection
*/
destroy = async () => {
this.io.close()
}
}

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@ -1,3 +1,3 @@
import SocketIOConnection from './SocketIOConnection'
import AutomergeCollaboration from './AutomergeCollaboration'
export { SocketIOConnection }
export { AutomergeCollaboration }

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@ -1,3 +1,3 @@
import debug from 'debug'
export const debugCollabBackend = debug('collab-backend')
export const debugCollabBackend = debug('app-collab')

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@ -29,6 +29,7 @@
"@babel/preset-react": "^7.0.0",
"@hiveteams/collab-bridge": "^0.7.19",
"automerge": "0.14.0",
"lodash": "^4.17.20",
"slate": "0.58.3",
"slate-history": "0.58.3",
"socket.io-client": "^2.3.0",

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@ -13,35 +13,13 @@ import {
toSlateOp,
CursorData
} from '@hiveteams/collab-bridge'
export interface AutomergeEditor extends Editor {
clientId: string
isRemote: boolean
docSet: Automerge.DocSet<SyncDoc>
connection: Automerge.Connection<SyncDoc>
onConnectionMsg: (msg: Automerge.Message) => void
openConnection: () => void
closeConnection: () => void
receiveDocument: (data: string) => void
receiveOperation: (data: Automerge.Message) => void
gabageCursor: () => void
onCursor: (data: any) => void
automergeCleanup: () => void
}
import { AutomergeEditor } from './interfaces'
/**
* `AutomergeEditor` contains methods for collaboration-enabled editors.
*/
export const AutomergeEditor = {
export const AutomergeConnector = {
/**
* Create Automerge connection
*/
@ -62,7 +40,7 @@ export const AutomergeEditor = {
const doc = e.docSet.getDoc(docId)
if (!doc) {
throw new TypeError(`Unknown docId: ${docId}!`)
throw new TypeError('Cannot apply slate ops for missing docId')
}
let changed: any
@ -114,7 +92,7 @@ export const AutomergeEditor = {
preserveExternalHistory?: boolean
) => {
try {
const current: any = e.docSet.getDoc(docId)
const current = e.docSet.getDoc(docId)
const updated = e.connection.receiveMsg(data)
@ -160,7 +138,7 @@ export const AutomergeEditor = {
delete d.cursors
})
e.docSet.setDoc(docId, changed)
e.docSet.setDoc(docId, changed as any)
e.onCursor && e.onCursor(null)

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@ -1,185 +0,0 @@
// import { createEditor, Element, Node, Transforms } from 'slate'
// import * as Automerge from 'automerge'
// import withAutomerge, { AutomergeOptions } from './withAutomerge'
// import { SyncDoc, toJS } from '@hiveteams/collab-bridge'
// import AutomergeCollaboration from '@hiveteams/collab-backend/lib/AutomergeCollaboration'
// import { insertText } from '../../bridge/src/apply/text'
// describe('automerge editor client tests', () => {
// const docId = 'test'
// const automergeOptions: AutomergeOptions = {
// docId,
// onError: msg => console.log('Encountered test error', msg)
// }
// const editor = withAutomerge(createEditor(), automergeOptions)
// const automergeBackend = new AutomergeBackend()
// const backendSend = (msg: any) => {
// serverMessages.push(msg)
// }
// const clientId = 'test-client'
// editor.clientId = clientId
// /**
// * Initialize a basic automerge backend
// */
// // Create a new server automerge connection with a basic send function
// let serverMessages: any[] = []
// automergeBackend.appendDocument(docId, [
// { type: 'paragraph', children: [{ text: 'Hi' }] }
// ])
// automergeBackend.createConnection(clientId, docId, backendSend)
// // define an editor send function for the clientside automerge editor
// let clientMessages: any[] = []
// editor.send = (msg: any) => {
// clientMessages.push(msg)
// }
// automergeBackend.openConnection(clientId)
// // open the editor connection
// editor.openConnection()
// /**
// * Helper function to flush client messages and send them to the server
// */
// const sendClientMessagesToServer = () => {
// if (!clientMessages.length) return
// console.log('clientMessages', JSON.stringify(clientMessages))
// clientMessages.forEach(msg => {
// automergeBackend.receiveOperation(clientId, msg)
// })
// clientMessages = []
// }
// /**
// * Helper function to flush server messages and send them to the client
// */
// const receiveMessagesFromServer = () => {
// if (!serverMessages.length) return
// console.log('serverMessages', JSON.stringify(serverMessages))
// serverMessages.forEach(msg => {
// editor.receiveOperation(msg.payload)
// })
// serverMessages = []
// }
// afterEach(() => {
// sendClientMessagesToServer()
// receiveMessagesFromServer()
// })
// it('should properly receiveDocument', () => {
// const initialDocData = Automerge.save(automergeBackend.getDocument(docId))
// editor.receiveDocument(initialDocData)
// expect(editor.children.length).toEqual(1)
// const paragraphNode = editor.children[0] as Element
// expect(paragraphNode.type).toEqual('paragraph')
// expect(paragraphNode.children.length).toEqual(1)
// expect(Node.string(paragraphNode)).toEqual('Hi')
// })
// it('should sync insert node operation with server', done => {
// Transforms.insertNodes(editor, {
// type: 'paragraph',
// children: [{ text: 'a' }]
// })
// // ensure that we eventually send a message for the insert_node oepration
// const handle = setInterval(() => {
// sendClientMessagesToServer()
// receiveMessagesFromServer()
// const serverDoc = toJS(automergeBackend.getDocument(docId))
// if (serverDoc.children.length === 2) {
// const paragraphNode = serverDoc.children[1]
// expect(Node.string(paragraphNode)).toEqual('a')
// clearInterval(handle)
// done()
// }
// }, 10)
// })
// it('should sync insert text operation with client', done => {
// const serverDoc = automergeBackend.getDocument(docId)
// const updatedServerDoc = Automerge.change(serverDoc, newServerDoc => {
// insertText(newServerDoc as any, {
// type: 'insert_text',
// path: [1, 0],
// offset: 1,
// text: 'b'
// })
// })
// automergeBackend.documentSetMap[docId].setDoc(docId, updatedServerDoc)
// // ensure that we eventually send a message for the insert_node oepration
// const handle = setInterval(() => {
// sendClientMessagesToServer()
// receiveMessagesFromServer()
// const [, secondParagraph] = editor.children
// if (Node.string(secondParagraph) === 'ab') {
// clearInterval(handle)
// done()
// }
// }, 10)
// })
// it('should reapply server state client side when server restarts', done => {
// automergeBackend.closeConnection(clientId)
// automergeBackend.removeDocument(docId)
// automergeBackend.appendDocument(docId, [
// { type: 'paragraph', children: [{ text: 'Hi' }] }
// ])
// automergeBackend.createConnection(clientId, docId, backendSend)
// automergeBackend.openConnection(clientId)
// const docData = Automerge.save(automergeBackend.getDocument(docId))
// editor.receiveDocument(docData)
// const handle = setInterval(() => {
// sendClientMessagesToServer()
// receiveMessagesFromServer()
// console.log('server doc', toJS(automergeBackend.getDocument(docId)))
// if (editor.children.length === 1) {
// done()
// clearInterval(handle)
// }
// }, 1000)
// })
// // it('should ? on client restart', done => {
// // editor.closeConnection()
// // Transforms.insertNodes(
// // editor,
// // {
// // type: 'paragraph',
// // children: [{ text: 'a' }]
// // },
// // { at: [1] }
// // )
// // editor.openConnection()
// // const docData = Automerge.save(automergeBackend.getDocument(docId))
// // editor.receiveDocument(docData)
// // // ensure that we eventually send a message for the insert_node operation
// // const handle = setInterval(() => {
// // sendClientMessagesToServer()
// // receiveMessagesFromServer()
// // const serverDoc = toJS(automergeBackend.getDocument(docId))
// // console.log(JSON.stringify(serverDoc))
// // console.log(editor.children)
// // if (serverDoc.children.length === 2) {
// // const paragraphNode = serverDoc.children[1]
// // expect(Node.string(paragraphNode)).toEqual('a')
// // clearInterval(handle)
// // done()
// // }
// // }, 1000)
// // })
// })

View File

@ -1,185 +1,193 @@
import { createEditor, Element, Node, Transforms } from 'slate'
import * as Automerge from 'automerge'
import withAutomerge, { AutomergeOptions } from './withAutomerge'
import { SyncDoc, toJS } from '@hiveteams/collab-bridge'
import AutomergeBackend from '@hiveteams/collab-backend/lib/AutomergeBackend'
import { insertText } from '../../bridge/src/apply/text'
import { createServer } from 'http'
import isEqual from 'lodash/isEqual'
import { createEditor, Node, Transforms } from 'slate'
import { toJS } from '@hiveteams/collab-bridge'
import AutomergeCollaboration from '@hiveteams/collab-backend/lib/AutomergeCollaboration'
import withIOCollaboration from './withIOCollaboration'
import { AutomergeOptions, SocketIOPluginOptions } from './interfaces'
const connectionSlug = 'test'
const docId = `/${connectionSlug}`
const options: AutomergeOptions & SocketIOPluginOptions = {
docId,
onError: msg => console.log('Encountered test error', msg),
url: `http://localhost:5000/${connectionSlug}`,
connectOpts: {
query: {
name: 'test-user',
slug: connectionSlug
},
forceNew: true
}
}
const waitForCondition = (condition: () => boolean, ms = 10) =>
new Promise<void>(resolve => {
const handle = setInterval(() => {
if (condition()) {
clearInterval(handle)
resolve()
}
}, ms)
})
const server = createServer(function(req, res) {
res.writeHead(200, { 'Content-Type': 'text/plain' })
res.write('Hello World!')
res.end()
})
const defaultSlateJson = [{ type: 'paragraph', children: [{ text: '' }] }]
const collabBackend = new AutomergeCollaboration({
entry: server,
defaultValue: defaultSlateJson,
saveFrequency: 1000,
async onAuthRequest(query) {
return { _id: 'test-id', name: 'Eric' }
},
async onDocumentLoad(pathname) {
return defaultSlateJson
}
})
describe('automerge editor client tests', () => {
const docId = 'test'
const automergeOptions: AutomergeOptions = {
docId,
onError: msg => console.log('Encountered test error', msg)
}
const editor = withAutomerge(createEditor(), automergeOptions)
const automergeBackend = new AutomergeBackend()
const backendSend = (msg: any) => {
serverMessages.push(msg)
}
const clientId = 'test-client'
editor.clientId = clientId
/**
* Initialize a basic automerge backend
*/
// Create a new server automerge connection with a basic send function
let serverMessages: any[] = []
automergeBackend.appendDocument(docId, [
{ type: 'paragraph', children: [{ text: 'Hi' }] }
])
automergeBackend.createConnection(clientId, docId, backendSend)
// define an editor send function for the clientside automerge editor
let clientMessages: any[] = []
editor.send = (msg: any) => {
clientMessages.push(msg)
}
automergeBackend.openConnection(clientId)
// open the editor connection
editor.openConnection()
/**
* Helper function to flush client messages and send them to the server
*/
const sendClientMessagesToServer = () => {
if (!clientMessages.length) return
console.log('clientMessages', JSON.stringify(clientMessages))
clientMessages.forEach(msg => {
automergeBackend.receiveOperation(clientId, msg)
})
clientMessages = []
}
/**
* Helper function to flush server messages and send them to the client
*/
const receiveMessagesFromServer = () => {
if (!serverMessages.length) return
console.log('serverMessages', JSON.stringify(serverMessages))
serverMessages.forEach(msg => {
editor.receiveOperation(msg.payload)
})
serverMessages = []
}
afterEach(() => {
sendClientMessagesToServer()
receiveMessagesFromServer()
beforeAll(done => {
//pass a callback to tell jest it is async
//start the server before any test
server.listen(5000, () => done())
})
it('should properly receiveDocument', () => {
const initialDocData = Automerge.save(automergeBackend.getDocument(docId))
editor.receiveDocument(initialDocData)
const createCollabEditor = async (
editorOptions: AutomergeOptions & SocketIOPluginOptions = options
) => {
const editor = withIOCollaboration(createEditor(), editorOptions)
const oldReceiveDocument = editor.receiveDocument
const promise = new Promise<void>(resolve => {
editor.receiveDocument = data => {
oldReceiveDocument(data)
resolve()
}
})
editor.connect()
await promise
return editor
}
it('should receiveDocument', async () => {
const editor = await createCollabEditor()
expect(editor.children.length).toEqual(1)
const paragraphNode = editor.children[0] as Element
expect(paragraphNode.type).toEqual('paragraph')
expect(paragraphNode.children.length).toEqual(1)
expect(Node.string(paragraphNode)).toEqual('Hi')
editor.destroy()
})
it('should sync insert node operation with server', done => {
Transforms.insertNodes(editor, {
type: 'paragraph',
children: [{ text: 'a' }]
it('should send client update to server', async () => {
const editor = await createCollabEditor()
editor.insertNode({ type: 'paragraph', children: [{ text: 'hi' }] })
await waitForCondition(() => {
const serverDoc = toJS(collabBackend.backend.getDocument(docId))
return serverDoc.children.length === 2
})
// ensure that we eventually send a message for the insert_node oepration
const handle = setInterval(() => {
sendClientMessagesToServer()
receiveMessagesFromServer()
const serverDoc = toJS(automergeBackend.getDocument(docId))
if (serverDoc.children.length === 2) {
const paragraphNode = serverDoc.children[1]
expect(Node.string(paragraphNode)).toEqual('a')
clearInterval(handle)
done()
}
}, 10)
editor.destroy()
})
it('should sync insert text operation with client', done => {
const serverDoc = automergeBackend.getDocument(docId)
it('should sync updates across two clients', async () => {
const editor1 = await createCollabEditor()
const editor2 = await createCollabEditor()
const updatedServerDoc = Automerge.change(serverDoc, newServerDoc => {
insertText(newServerDoc as any, {
type: 'insert_text',
path: [1, 0],
offset: 1,
text: 'b'
})
editor1.insertNode({ type: 'paragraph', children: [{ text: 'hi' }] })
await waitForCondition(() => {
const serverDoc = toJS(collabBackend.backend.getDocument(docId))
return serverDoc.children.length === 2 && editor2.children.length === 2
})
automergeBackend.documentSetMap[docId].setDoc(docId, updatedServerDoc)
// ensure that we eventually send a message for the insert_node oepration
const handle = setInterval(() => {
sendClientMessagesToServer()
receiveMessagesFromServer()
const [, secondParagraph] = editor.children
if (Node.string(secondParagraph) === 'ab') {
clearInterval(handle)
done()
}
}, 10)
editor1.destroy()
editor2.destroy()
})
it('should reapply server state client side when server restarts', done => {
automergeBackend.closeConnection(clientId)
automergeBackend.removeDocument(docId)
automergeBackend.appendDocument(docId, [
{ type: 'paragraph', children: [{ text: 'Hi' }] }
])
automergeBackend.createConnection(clientId, docId, backendSend)
automergeBackend.openConnection(clientId)
it('should sync offline changes on reconnect', async () => {
const editor1 = await createCollabEditor()
const editor2 = await createCollabEditor()
const docData = Automerge.save(automergeBackend.getDocument(docId))
editor.receiveDocument(docData)
editor1.insertNode({ type: 'paragraph', children: [{ text: 'hi' }] })
const handle = setInterval(() => {
sendClientMessagesToServer()
receiveMessagesFromServer()
console.log('server doc', toJS(automergeBackend.getDocument(docId)))
if (editor.children.length === 1) {
done()
clearInterval(handle)
}
}, 1000)
await waitForCondition(() => {
const serverDoc = toJS(collabBackend.backend.getDocument(docId))
return serverDoc.children.length === 2 && editor2.children.length === 2
})
editor1.destroy()
editor1.insertNode({ type: 'paragraph', children: [{ text: 'offline' }] })
editor1.connect()
await waitForCondition(() => {
const serverDoc = toJS(collabBackend.backend.getDocument(docId))
return serverDoc.children.length === 3 && editor2.children.length === 3
})
expect(Node.string(editor2.children[2])).toEqual('offline')
editor1.destroy()
editor2.destroy()
})
// it('should ? on client restart', done => {
// editor.closeConnection()
it('should work with concurrent edits', async () => {
const editor1 = await createCollabEditor()
const editor2 = await createCollabEditor()
// Transforms.insertNodes(
// editor,
// {
// type: 'paragraph',
// children: [{ text: 'a' }]
// },
// { at: [1] }
// )
const numEdits = 10
for (let i = 0; i < numEdits; i++) {
editor1.insertNode({ type: 'paragraph', children: [{ text: '' }] })
editor2.insertNode({ type: 'paragraph', children: [{ text: '' }] })
}
// editor.openConnection()
// const docData = Automerge.save(automergeBackend.getDocument(docId))
// editor.receiveDocument(docData)
// // ensure that we eventually send a message for the insert_node operation
// const handle = setInterval(() => {
// sendClientMessagesToServer()
// receiveMessagesFromServer()
await waitForCondition(() => {
return (
editor1.children.length === numEdits * 2 + 1 &&
editor2.children.length === numEdits * 2 + 1
)
})
// const serverDoc = toJS(automergeBackend.getDocument(docId))
// console.log(JSON.stringify(serverDoc))
// console.log(editor.children)
// if (serverDoc.children.length === 2) {
// const paragraphNode = serverDoc.children[1]
// expect(Node.string(paragraphNode)).toEqual('a')
// clearInterval(handle)
// done()
// }
// }, 1000)
// })
expect(isEqual(editor1.children, editor2.children)).toBeTruthy()
editor1.destroy()
editor2.destroy()
})
it('should work with concurrent insert text operations', async () => {
const editor1 = await createCollabEditor()
const editor2 = await createCollabEditor()
Transforms.select(editor1, [0, 0])
Transforms.select(editor2, [0, 0])
const numEdits = 10
for (let i = 0; i < numEdits; i++) {
editor1.insertText('a')
editor2.insertText('b')
}
await waitForCondition(() => {
return (
Node.string(editor1.children[0]).length === numEdits * 2 &&
Node.string(editor2.children[0]).length === numEdits * 2
)
})
expect(isEqual(editor1.children, editor2.children)).toBeTruthy()
editor1.destroy()
editor2.destroy()
})
afterAll(() => {
collabBackend.destroy()
server.close()
})
})

View File

@ -0,0 +1,58 @@
import Automerge from 'automerge'
import { Editor } from 'slate'
import { CollabAction, CursorData, SyncDoc } from '@hiveteams/collab-bridge'
interface ErrorData {
docId: string
serializedData: string
opData?: string
slateOperations?: string
}
export interface AutomergeOptions {
docId: string
cursorData?: CursorData
preserveExternalHistory?: boolean
onError?: (msg: string | Error, data: ErrorData) => void
}
export interface AutomergeEditor extends Editor {
clientId: string
isRemote: boolean
docSet: Automerge.DocSet<SyncDoc>
connection: Automerge.Connection<SyncDoc>
onConnectionMsg: (msg: Automerge.Message) => void
openConnection: () => void
closeConnection: () => void
receiveDocument: (data: string) => void
receiveOperation: (data: Automerge.Message) => void
gabageCursor: () => void
onCursor: (data: any) => void
handleError: (err: Error | string, opData?: string) => void
}
export interface SocketIOPluginOptions {
url: string
connectOpts: SocketIOClient.ConnectOpts
onConnect?: () => void
onDisconnect?: () => void
onError?: (msg: string | Error, data: ErrorData) => void
}
export interface WithSocketIOEditor {
clientId: string
socket: SocketIOClient.Socket
connect: () => void
disconnect: () => void
send: (op: CollabAction) => void
receive: (op: CollabAction) => void
destroy: () => void
}

View File

@ -4,8 +4,8 @@ import { Text, Range, Path, NodeEntry } from 'slate'
import { toJS, Cursor, Cursors } from '@hiveteams/collab-bridge'
import { AutomergeEditor } from './automerge-editor'
import useMounted from './useMounted'
import { AutomergeEditor } from './interfaces'
const useCursor = (
e: AutomergeEditor

View File

@ -2,59 +2,69 @@ import Automerge from 'automerge'
import { Editor } from 'slate'
import { AutomergeEditor } from './automerge-editor'
import { AutomergeConnector } from './automerge-connector'
import { CursorData, CollabAction } from '@hiveteams/collab-bridge'
export interface AutomergeOptions {
docId: string
cursorData?: CursorData
preserveExternalHistory?: boolean
onError?: (msg: string | Error) => void
}
import { CollabAction } from '@hiveteams/collab-bridge'
import {
AutomergeEditor,
AutomergeOptions,
WithSocketIOEditor
} from './interfaces'
/**
* The `withAutomerge` plugin contains core collaboration logic.
*/
const withAutomerge = <T extends Editor>(
editor: T,
slateEditor: T,
options: AutomergeOptions
) => {
const e = editor as T & AutomergeEditor
const { docId, cursorData, preserveExternalHistory } = options || {}
const { onChange } = e
const editor = slateEditor as T & AutomergeEditor & WithSocketIOEditor
const {
docId,
cursorData,
preserveExternalHistory,
onError = (err: string | Error) => console.log('AutomergeEditor error', err)
} = options || {}
const { onChange } = editor
e.docSet = new Automerge.DocSet()
editor.docSet = new Automerge.DocSet()
/**
* Helper function for handling errors
*/
editor.handleError = (err: Error | string, opData?: string) => {
const { docId, cursorData, onError } = options
if (onError && cursorData) {
const document = editor.docSet.getDoc(docId)
onError(err, {
docId: docId,
serializedData: document ? Automerge.save(document) : 'No document',
opData,
slateOperations: JSON.stringify(editor.operations)
})
}
}
/**
* Open Automerge Connection
*/
e.openConnection = () => {
e.connection = AutomergeEditor.createConnection(e, (data: CollabAction) =>
//@ts-ignore
e.send(data)
editor.openConnection = () => {
editor.connection = AutomergeConnector.createConnection(
editor,
(data: CollabAction) => editor.send(data)
)
e.connection.open()
editor.connection.open()
}
/**
* Close Automerge Connection
*/
e.closeConnection = () => {
editor.closeConnection = () => {
// close any actively open connections
if (e.connection) {
e.connection.close()
if (editor.connection) {
editor.connection.close()
}
}
@ -62,30 +72,25 @@ const withAutomerge = <T extends Editor>(
* Clear cursor data
*/
e.gabageCursor = () => {
editor.gabageCursor = () => {
try {
AutomergeEditor.garbageCursor(e, docId)
AutomergeConnector.garbageCursor(editor, docId)
} catch (err) {
console.log('garbageCursor error', err)
editor.handleError(err)
}
}
e.automergeCleanup = () => {
e.docSet = new Automerge.DocSet()
}
/**
* Editor onChange
*/
editor.onChange = () => {
const operations = editor.operations
e.onChange = () => {
const operations: any = e.operations
if (!e.isRemote) {
if (!editor.isRemote) {
try {
AutomergeEditor.applySlateOps(e, docId, operations, cursorData)
AutomergeConnector.applySlateOps(editor, docId, operations, cursorData)
} catch (err) {
onError(err)
editor.handleError(err)
}
onChange()
@ -96,11 +101,11 @@ const withAutomerge = <T extends Editor>(
* Receive document value
*/
e.receiveDocument = data => {
editor.receiveDocument = data => {
try {
AutomergeEditor.receiveDocument(e, docId, data)
AutomergeConnector.receiveDocument(editor, docId, data)
} catch (err) {
onError(err)
editor.handleError(err, JSON.stringify(data))
}
}
@ -108,18 +113,23 @@ const withAutomerge = <T extends Editor>(
* Receive Automerge sync operations
*/
e.receiveOperation = data => {
editor.receiveOperation = data => {
// ignore document updates for differnt docIds
if (docId !== data.docId) return
try {
AutomergeEditor.applyOperation(e, docId, data, preserveExternalHistory)
AutomergeConnector.applyOperation(
editor,
docId,
data,
preserveExternalHistory
)
} catch (err) {
// report any errors during apply operation
onError(err)
editor.handleError(err, JSON.stringify(data))
}
}
return e
return editor
}
export default withAutomerge

View File

@ -1,11 +1,13 @@
import { Editor } from 'slate'
import { AutomergeEditor } from './automerge-editor'
import withAutomerge, { AutomergeOptions } from './withAutomerge'
import withSocketIO, {
WithSocketIOEditor,
SocketIOPluginOptions
} from './withSocketIO'
import withAutomerge from './withAutomerge'
import {
AutomergeEditor,
AutomergeOptions,
SocketIOPluginOptions,
WithSocketIOEditor
} from './interfaces'
import withSocketIO from './withSocketIO'
/**
* The `withIOCollaboration` plugin contains collaboration with SocketIO.

View File

@ -1,102 +1,85 @@
import io from 'socket.io-client'
import { AutomergeEditor } from './automerge-editor'
import Automerge from 'automerge'
import { CollabAction } from '@hiveteams/collab-bridge'
export interface SocketIOPluginOptions {
url: string
connectOpts: SocketIOClient.ConnectOpts
onConnect?: () => void
onDisconnect?: () => void
onError?: (msg: string | Error) => void
}
export interface WithSocketIOEditor {
socket: SocketIOClient.Socket
connect: () => void
disconnect: () => void
send: (op: CollabAction) => void
receive: (op: CollabAction) => void
destroy: () => void
}
import {
AutomergeEditor,
AutomergeOptions,
SocketIOPluginOptions,
WithSocketIOEditor
} from './interfaces'
/**
* The `withSocketIO` plugin contains SocketIO layer logic.
*/
const withSocketIO = <T extends AutomergeEditor>(
editor: T,
options: SocketIOPluginOptions
slateEditor: T,
options: SocketIOPluginOptions & AutomergeOptions
) => {
const e = editor as T & WithSocketIOEditor
const { onConnect, onDisconnect, connectOpts, url } = options
const editor = slateEditor as T & WithSocketIOEditor & AutomergeEditor
let socket: SocketIOClient.Socket
const { onConnect, onDisconnect, onError, connectOpts, url } = options
/**
* Connect to Socket.
*/
e.connect = () => {
editor.connect = () => {
socket = io(url, { ...connectOpts })
// On socket io connect, open a new automerge connection
socket.on('connect', () => {
e.clientId = socket.id
e.openConnection()
editor.clientId = socket.id
editor.openConnection()
onConnect && onConnect()
})
// On socket io error
socket.on('error', (msg: string) => {
onError && onError(msg)
editor.handleError(msg)
})
// On socket io msg, process the collab operation
socket.on('msg', (data: CollabAction) => {
e.receive(data)
editor.receive(data)
})
// On socket io disconnect, cleanup cursor and call the provided onDisconnect callback
socket.on('disconnect', () => {
e.gabageCursor()
editor.gabageCursor()
onDisconnect && onDisconnect()
})
socket.connect()
return e
return editor
}
/**
* Disconnect from Socket.
*/
e.disconnect = () => {
editor.disconnect = () => {
socket.removeListener('msg')
socket.close()
e.closeConnection()
editor.closeConnection()
return e
return editor
}
/**
* Receive transport msg.
*/
e.receive = (msg: CollabAction) => {
editor.receive = (msg: CollabAction) => {
switch (msg.type) {
case 'operation':
return e.receiveOperation(msg.payload)
return editor.receiveOperation(msg.payload)
case 'document':
return e.receiveDocument(msg.payload)
return editor.receiveDocument(msg.payload)
}
}
@ -104,7 +87,7 @@ const withSocketIO = <T extends AutomergeEditor>(
* Send message to socket.
*/
e.send = (msg: CollabAction) => {
editor.send = (msg: CollabAction) => {
socket.emit('msg', msg)
}
@ -112,13 +95,12 @@ const withSocketIO = <T extends AutomergeEditor>(
* Close socket and connection.
*/
e.destroy = () => {
editor.destroy = () => {
socket.close()
e.closeConnection()
e.automergeCleanup()
editor.closeConnection()
}
return e
return editor
}
export default withSocketIO

View File

@ -7,8 +7,9 @@
"outDir": "./lib",
"composite": true,
"paths": {
"@hiveteams/collab-bridge": ["../../bridge"]
"@hiveteams/collab-bridge": ["../../bridge"],
"@hiveteams/collab-backend": ["../../backend"]
}
},
"references": [{ "path": "../bridge" }]
"references": [{ "path": "../bridge" }, { "path": "../backend" }]
}

View File

@ -1,4 +1,4 @@
const { SocketIOConnection } = require('@hiveteams/collab-backend')
const { AutomergeCollaboration } = require('@hiveteams/collab-backend')
const express = require('express')
const defaultValue = [
@ -36,4 +36,4 @@ const config = {
}
}
const connection = new SocketIOConnection(config)
const connection = new AutomergeCollaboration(config)