📝(documentation) add collaboration architecture doc

Documentation to describe the collaboration architecture in the project.
fixup! 🔧(helm) adapt helm nginx
2025-02-20 11:20:50 +01:00 · 2025-02-20 11:20:50 +01:00 · 2025-02-20 11:20:50 +01:00 · 2025-02-20 11:20:50 +01:00 · 2025-02-20 11:20:50 +01:00 · 2025-02-20 11:20:50 +01:00
35 changed files with 1625 additions and 185 deletions
@@ -6,6 +6,7 @@ on:
  push:
    branches:
      - 'main'
+      - 'feature/collab-long-polling'
    tags:
      - 'v*'
  pull_request:
@@ -8,17 +8,21 @@ and this project adheres to

 ## [Unreleased]

+## Added
+
+- ✨Collaboration long polling fallback #517
+
 ## Changed

 - 🛂(frontend) Restore version visibility #629
 - 📝(doc) minor README.md formatting and wording enhancements
 - ♻️Stop setting a default title on doc creation #634
- 📝(readme) remove front-end local run instructions local.md #651 

 ## Fixed

 - ♻️(frontend) improve table pdf rendering

+
 ## [2.2.0] - 2025-02-10

 ## Added
@@ -40,7 +40,7 @@ Docs is a collaborative text editor designed to address common challenges in kno
 *   📚 Built-in wiki functionality to turn your team's collaborative work into organized knowledge `ETA 02/2025`

 ### Self-host
-*   🚀 Easy to install, scalable and secure alternative to Notion and Outline.
+*   🚀 Easy to install, scalable and secure alternative to Notion, Outline or Confluence

 ## Getting started 🔧

@@ -100,6 +100,26 @@ password: impress
 $ make run
 ```

+⚠️ For the frontend developer, it is often better to run the frontend in development mode locally.
+
+To do so, install the frontend dependencies with the following command:
+
+```shellscript
+$ make frontend-development-install
+```
+
+And run the frontend locally in development mode with the following command:
+
+```shellscript
+$ make run-frontend-development
+```
+
+To start all the services, except the frontend container, you can use the following command:
+
+```shellscript
+$ make run-backend
+```
+
 **Adding content**
 You can create a basic demo site by running:

@@ -0,0 +1 @@
+proxy_cache_path /tmp/auth_cache levels=1:2 keys_zone=auth_cache:10m inactive=60s max_size=100m;
@@ -1,4 +1,3 @@
-
 server {
    listen 8083;
    server_name localhost;
@@ -6,6 +5,14 @@ server {

    # Proxy auth for collaboration server
    location /collaboration/ws/ {
+        if ($request_method = OPTIONS) {
+            add_header 'Access-Control-Allow-Origin' 'http://localhost:3000';
+            add_header 'Access-Control-Allow-Credentials' 'true';
+            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
+            add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type';
+            return 204;
+        }
+
        # Collaboration Auth request configuration
        auth_request /collaboration-auth;
        auth_request_set $authHeader $upstream_http_authorization;
@@ -34,6 +41,10 @@ server {
    }

    location /collaboration-auth {
+        proxy_cache auth_cache;
+        proxy_cache_key "$http_authorization-$arg_room";
+        proxy_cache_valid 200 30s;
+
        proxy_pass http://app-dev:8000/api/v1.0/documents/collaboration-auth/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
@@ -43,10 +54,11 @@ server {
        # Prevent the body from being passed
        proxy_pass_request_body off;
        proxy_set_header Content-Length "";
+        proxy_set_header Accept "application/json";
        proxy_set_header X-Original-Method $request_method;
    }

-    location  /collaboration/api/ {
+    location /collaboration/api/ {
        # Collaboration server
        proxy_pass http://y-provider:4444;
        proxy_set_header Host $host;
@@ -76,7 +88,7 @@ server {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Original-URL $request_uri;
-        
+
        # Prevent the body from being passed
        proxy_pass_request_body off;
        proxy_set_header Content-Length "";
@@ -0,0 +1,84 @@
+# Architecture Overview
+
+This architecture showcases different ways for clients to interact with a **Hocus Pocus Server** (a [Y.js](https://github.com/yjs/yjs) provider) through either WebSockets, HTTP fallbacks, or Server-Sent Events (SSE) when WebSockets are not available.
+
+**Main Components**:
+
+- **Client**: The front-end application or user agent.
+- **Nginx**: A reverse proxy handling incoming requests, forwarding them to the appropriate services, and managing SSL/TLS termination if needed.
+- **Auth Sub Request (Django)**: Handles authentication/authorization, ensuring requests have valid credentials or permissions.
+- **Hocus Pocus Server**: The core collaborative editing server (powered by [Y.js](https://github.com/yjs/yjs) libraries) that manages document state and synchronization.
+- **Express**: Fallback server to handle push or pull requests when WebSocket connections fail.
+- **SSE**: A mechanism (Server-Sent Events) for real-time updates when WebSockets are unavailable.
+
+## Mermaid Diagram
+
+```mermaid
+flowchart TD
+    title1[WebSocket Success]-->Client1(Client)<--->|WebSocket Success|WS1(Websocket) --> Nginx1(Ngnix) <--> Auth1("Auth Sub Request (Django)") --->|With the good right|YServer1("Hocus Pocus Server")
+    YServer1 --> WS1
+    YServer1 <--> clients(Dispatch to clients)
+
+    title2[WebSocket Fails - Push data]-->Client2(Client)---|WebSocket fails|HTTP2(HTTP) --> Nginx2(Ngnix) <--> Auth2("Auth Sub Request (Django)")--->|With the good right|Express2(Express) --> YServer2("Hocus Pocus Server") --> clients(Dispatch to clients)
+
+    title3[WebSocket Fails - Pull data]-->Client3(Client)<--->|WebSocket fails|SSE(SSE) --> Nginx3(Ngnix) <--> Auth3("Auth Sub Request (Django)") --->|With the good right|Express3(Express) --> YServer3("Listen Hocus Pocus Server")
+    YServer3("Listen Hocus Pocus Server") --> SSE
+    YServer3("Listen Hocus Pocus Server") <--> clients(Data from clients)
+```
+
+---
+
+## Detailed Flows
+
+### 1. WebSocket Success
+1. **Client** attempts a WebSocket connection.
+2. **Nginx** proxies the WebSocket connection through the **Auth Sub Request (Django)** for authentication.
+3. Once authenticated, traffic is routed to the **Hocus Pocus Server**.
+4. The server can broadcast data to all clients connected through WebSockets.  
+   - Note: The path `YServer1 --> WS1` indicates the two-way real-time communication between the server and client(s).
+
+### 2. WebSocket Fails — Push Data (HTTP)
+If WebSocket connections fail, clients can **push** data via HTTP:
+1. **Client** detects WebSocket failure and falls back to sending data over **HTTP**.
+2. **Nginx** handles HTTP requests and authenticates them via the **Auth Sub Request (Django)**.
+3. After successful authentication, the requests go to an **Express** server.
+4. The **Express** server relays changes to the **Hocus Pocus Server**.
+5. The **Hocus Pocus Server** dispatches updated content to connected clients.  
+
+### 3. WebSocket Fails — Pull Data (SSE)
+For continuously receiving data when WebSockets fail, the client can **pull** data using SSE:
+1. **Client** sets up an **SSE** connection.
+2. **Nginx** proxies the SSE stream request through the **Auth Sub Request (Django)** for authentication.
+3. Once authenticated, the **Express** server listens to the **Hocus Pocus Server** for changes.
+4. The server then sends updates back to the **Client** through SSE in near real-time.
+
+---
+
+## Component Responsibilities
+
+| **Component**               | **Responsibility**                                                                     |
+|-----------------------------|-----------------------------------------------------------------------------------------|
+| **Client**                  | Initiates connections (WebSocket/HTTP/SSE), displays and interacts with data           |
+| **Nginx**                   | Acts as a reverse proxy, routes traffic, handles SSL, and passes auth sub requests     |
+| **Auth Sub Request (Django)** | Validates requests, ensuring correct permissions and tokens                           |
+| **WebSocket**               | Real-time two-way communication channel                                                |
+| **HTTP**                    | Fallback method for sending updates when WebSockets are not available                  |
+| **Express**                 | Fallback server for handling requests (push/pull of data)                              |
+| **SSE**                     | Mechanism for real-time one-way updates from server to client                          |
+| **Hocus Pocus Server**      | Core Y.js server for collaboration, managing document states and synchronization       |
+
+---
+
+## Why This Setup?
+
+- **Reliability:** Ensures that when a user’s browser or network environment does not support WebSockets, there are fallback mechanisms (HTTP for push updates and SSE for server-initiated updates).
+- **Scalability:** Nginx can efficiently proxy requests and scale horizontally, while the authentication step is centralized in Django.
+- **Security:** The Auth Sub Request in Django enforces proper permissions before data is relayed to the collaboration server.
+- **Real-time Collaboration:** The Hocus Pocus Server provides low-latency updates, essential for collaborative editing, supported by [Y.js](https://github.com/yjs/yjs).
+
+---
+
+### Contributing
+If you have any suggestions or improvements, feel free to open an issue or submit a pull request.
+
+**Thank you for exploring this architecture!** If you have any questions or need more detailed explanations, please let us know.
@@ -1,92 +0,0 @@
-# Run Docs locally
-
-> ⚠️ Running Docs locally using the methods described below is for testing purposes only.  It is based on building Docs using Minio as the S3 storage solution: if you want to use Minio for production deployment of Docs, you will need to comply with Minio's AGPL-3.0 licence.
-
-**Prerequisite**
-
-Make sure you have a recent version of Docker and [Docker Compose](https://docs.docker.com/compose/install) installed on your laptop:
-
-```shellscript
-$ docker -v
-
-Docker version 20.10.2, build 2291f61
-
-$ docker compose version
-
-Docker Compose version v2.32.4
-```
-
-> ⚠️ You may need to run the following commands with sudo but this can be avoided by adding your user to the `docker` group.
-
-**Project bootstrap**
-
-The easiest way to start working on the project is to use GNU Make:
-
-```shellscript
-$ make bootstrap FLUSH_ARGS='--no-input'
-```
-
-This command builds the `app` container, installs dependencies, performs database migrations and compile translations. It's a good idea to use this command each time you are pulling code from the project repository to avoid dependency-related or migration-related issues.
-
-Your Docker services should now be up and running 🎉
-
-You can access to the project by going to <http://localhost:3000>.
-
-You will be prompted to log in, the default credentials are:
-
-```
-username: impress
-password: impress
-```
-
-📝 Note that if you need to run them afterwards, you can use the eponym Make rule:
-
-```shellscript
-$ make run
-```
-
-**Adding content**
-You can create a basic demo site by running:
-
-```shellscript
-$ make demo
-```
-
-Finally, you can check all available Make rules using:
-
-```shellscript
-$ make help
-```
-
-**Django admin**
-
-You can access the Django admin site at
-
-<http://localhost:8071/admin>.
-
-You first need to create a superuser account:
-
-```shellscript
-$ make superuser
-```
-
-## Front-end dev instructions
-⚠️ For the frontend developer, it is often better to run the frontend in development mode locally.
-
-To do so, install the frontend dependencies with the following command:
-
-```shellscript
-$ make frontend-development-install
-```
-
-And run the frontend locally in development mode with the following command:
-
-```shellscript
-$ make run-frontend-development
-```
-
-To start all the services, except the frontend container, you can use the following command:
-
-```shellscript
-$ make run-backend
-```
@@ -0,0 +1,97 @@
+import { expect, test } from '@playwright/test';
+
+import { createDoc, verifyDocName } from './common';
+
+test.beforeEach(async ({ page }) => {
+  await page.goto('/');
+});
+
+test.describe('Doc Collaboration', () => {
+  /**
+   * We check:
+   *  - connection to the collaborative server
+   *  - signal of the backend to the collaborative server (connection should close)
+   *  - reconnection to the collaborative server
+   */
+  test('checks the connection with collaborative server', async ({
+    page,
+    browserName,
+  }) => {
+    let webSocketPromise = page.waitForEvent('websocket', (webSocket) => {
+      return webSocket
+        .url()
+        .includes('ws://localhost:8083/collaboration/ws/?room=');
+    });
+
+    const [title] = await createDoc(page, 'doc-editor', browserName, 1);
+    await verifyDocName(page, title);
+
+    let webSocket = await webSocketPromise;
+    expect(webSocket.url()).toContain(
+      'ws://localhost:8083/collaboration/ws/?room=',
+    );
+
+    // Is connected
+    let framesentPromise = webSocket.waitForEvent('framesent');
+
+    await page.locator('.ProseMirror.bn-editor').click();
+    await page.locator('.ProseMirror.bn-editor').fill('Hello World');
+
+    let framesent = await framesentPromise;
+    expect(framesent.payload).not.toBeNull();
+
+    await page.getByRole('button', { name: 'Share' }).click();
+
+    const selectVisibility = page.getByLabel('Visibility', { exact: true });
+
+    // When the visibility is changed, the ws should closed the connection (backend signal)
+    const wsClosePromise = webSocket.waitForEvent('close');
+
+    await selectVisibility.click();
+    await page
+      .getByRole('button', {
+        name: 'Connected',
+      })
+      .click();
+
+    // Assert that the doc reconnects to the ws
+    const wsClose = await wsClosePromise;
+    expect(wsClose.isClosed()).toBeTruthy();
+
+    // Checkt the ws is connected again
+    webSocketPromise = page.waitForEvent('websocket', (webSocket) => {
+      return webSocket
+        .url()
+        .includes('ws://localhost:8083/collaboration/ws/?room=');
+    });
+
+    webSocket = await webSocketPromise;
+    framesentPromise = webSocket.waitForEvent('framesent');
+    framesent = await framesentPromise;
+    expect(framesent.payload).not.toBeNull();
+  });
+
+  test('checks the connection switch to polling after websocket failure', async ({
+    page,
+    browserName,
+  }) => {
+    const responsePromise = page.waitForResponse(
+      (response) =>
+        response.url().includes('/poll/') && response.status() === 200,
+    );
+
+    await page.routeWebSocket(
+      'ws://localhost:8083/collaboration/ws/**',
+      async (ws) => {
+        await ws.close();
+      },
+    );
+
+    await page.reload();
+
+    await createDoc(page, 'doc-polling', browserName, 1);
+
+    const response = await responsePromise;
+    expect(response.ok()).toBeTruthy();
+  });
+});
@@ -88,70 +88,6 @@ test.describe('Doc Editor', () => {
    ).toBeVisible();
  });

-  /**
-   * We check:
-   *  - connection to the collaborative server
-   *  - signal of the backend to the collaborative server (connection should close)
-   *  - reconnection to the collaborative server
-   */
-  test('checks the connection with collaborative server', async ({
-    page,
-    browserName,
-  }) => {
-    let webSocketPromise = page.waitForEvent('websocket', (webSocket) => {
-      return webSocket
-        .url()
-        .includes('ws://localhost:8083/collaboration/ws/?room=');
-    });
-
-    const randomDoc = await createDoc(page, 'doc-editor', browserName, 1);
-    await verifyDocName(page, randomDoc[0]);
-
-    let webSocket = await webSocketPromise;
-    expect(webSocket.url()).toContain(
-      'ws://localhost:8083/collaboration/ws/?room=',
-    );
-
-    // Is connected
-    let framesentPromise = webSocket.waitForEvent('framesent');
-
-    await page.locator('.ProseMirror.bn-editor').click();
-    await page.locator('.ProseMirror.bn-editor').fill('Hello World');
-
-    let framesent = await framesentPromise;
-    expect(framesent.payload).not.toBeNull();
-
-    await page.getByRole('button', { name: 'Share' }).click();
-
-    const selectVisibility = page.getByLabel('Visibility', { exact: true });
-
-    // When the visibility is changed, the ws should closed the connection (backend signal)
-    const wsClosePromise = webSocket.waitForEvent('close');
-
-    await selectVisibility.click();
-    await page
-      .getByRole('button', {
-        name: 'Connected',
-      })
-      .click();
-
-    // Assert that the doc reconnects to the ws
-    const wsClose = await wsClosePromise;
-    expect(wsClose.isClosed()).toBeTruthy();
-
-    // Checkt the ws is connected again
-    webSocketPromise = page.waitForEvent('websocket', (webSocket) => {
-      return webSocket
-        .url()
-        .includes('ws://localhost:8083/collaboration/ws/?room=');
-    });
-
-    webSocket = await webSocketPromise;
-    framesentPromise = webSocket.waitForEvent('framesent');
-    framesent = await framesentPromise;
-    expect(framesent.payload).not.toBeNull();
-  });
-
  test('markdown button converts from markdown to the editor syntax json', async ({
    page,
    browserName,
@@ -62,6 +62,7 @@
    "@types/node": "*",
    "@types/react": "18.3.12",
    "@types/react-dom": "*",
+    "@types/ws": "8.5.13",
    "cross-env": "7.0.3",
    "dotenv": "16.4.7",
    "eslint-config-impress": "*",
@@ -2,12 +2,10 @@ import { useRouter } from 'next/router';
 import { useCallback, useEffect, useRef, useState } from 'react';
 import * as Y from 'yjs';

-import { useUpdateDoc } from '@/features/docs/doc-management/';
+import { toBase64, useUpdateDoc } from '@/features/docs/doc-management/';
 import { KEY_LIST_DOC_VERSIONS } from '@/features/docs/doc-versioning';
 import { isFirefox } from '@/utils/userAgent';

-import { toBase64 } from '../utils';
-
 const useSaveDoc = (docId: string, doc: Y.Doc, canSave: boolean) => {
  const { mutate: updateDoc } = useUpdateDoc({
    listInvalideQueries: [KEY_LIST_DOC_VERSIONS],
@@ -22,6 +22,3 @@ function hslToHex(h: number, s: number, l: number) {
  };
  return `#${f(0)}${f(8)}${f(4)}`;
 }
-
-export const toBase64 = (str: Uint8Array) =>
-  Buffer.from(str).toString('base64');
@@ -0,0 +1,67 @@
+import { APIError, errorCauses } from '@/api';
+
+interface PollOutgoingMessageParams {
+  pollUrl: string;
+  message64: string;
+}
+interface PollOutgoingMessageResponse {
+  updated?: boolean;
+}
+
+export const pollOutgoingMessageRequest = async ({
+  pollUrl,
+  message64,
+}: PollOutgoingMessageParams): Promise<PollOutgoingMessageResponse> => {
+  const response = await fetch(pollUrl, {
+    method: 'POST',
+    credentials: 'include',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+      message64,
+    }),
+  });
+
+  if (!response.ok) {
+    throw new APIError(
+      `Post poll message request failed`,
+      await errorCauses(response),
+    );
+  }
+
+  return response.json() as Promise<PollOutgoingMessageResponse>;
+};
+
+interface PollSyncParams {
+  pollUrl: string;
+  localDoc64: string;
+}
+interface PollSyncResponse {
+  syncDoc64?: string;
+}
+
+export const postPollSyncRequest = async ({
+  pollUrl,
+  localDoc64,
+}: PollSyncParams): Promise<PollSyncResponse> => {
+  const response = await fetch(pollUrl, {
+    method: 'POST',
+    credentials: 'include',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+      localDoc64,
+    }),
+  });
+
+  if (!response.ok) {
+    throw new APIError(
+      `Sync request failed: ${response.status} ${response.statusText}`,
+      await errorCauses(response),
+    );
+  }
+
+  return response.json() as Promise<PollSyncResponse>;
+};
@@ -6,17 +6,29 @@ import { useBroadcastStore } from '@/stores';
 import { useProviderStore } from '../stores/useProviderStore';
 import { Base64 } from '../types';

-export const useCollaboration = (room?: string, initialContent?: Base64) => {
+export const useCollaboration = (
+  room?: string,
+  initialContent?: Base64,
+  canEdit?: boolean,
+) => {
  const collaborationUrl = useCollaborationUrl(room);
  const { setBroadcastProvider } = useBroadcastStore();
  const { provider, createProvider, destroyProvider } = useProviderStore();

+  /**
+   * Initialize the provider
+   */
  useEffect(() => {
-    if (!room || !collaborationUrl || provider) {
+    if (!room || !collaborationUrl || provider || canEdit === undefined) {
      return;
    }

-    const newProvider = createProvider(collaborationUrl, room, initialContent);
+    const newProvider = createProvider(
+      collaborationUrl,
+      room,
+      canEdit,
+      initialContent,
+    );
    setBroadcastProvider(newProvider);
  }, [
    provider,
@@ -25,6 +37,7 @@ export const useCollaboration = (room?: string, initialContent?: Base64) => {
    initialContent,
    createProvider,
    setBroadcastProvider,
+    canEdit,
  ]);

  /**
@@ -0,0 +1,333 @@
+import crypto from 'crypto';
+
+import {
+  CompleteHocuspocusProviderConfiguration,
+  CompleteHocuspocusProviderWebsocketConfiguration,
+  HocuspocusProvider,
+  HocuspocusProviderConfiguration,
+  WebSocketStatus,
+  onOutgoingMessageParameters,
+  onStatusParameters,
+} from '@hocuspocus/provider';
+import type { MessageEvent } from 'ws';
+import * as Y from 'yjs';
+
+import { isAPIError } from '@/api';
+
+import {
+  pollOutgoingMessageRequest,
+  postPollSyncRequest,
+} from '../api/collaborationRequests';
+import { toBase64 } from '../utils';
+
+type HocuspocusProviderConfigurationUrl = Required<
+  Pick<CompleteHocuspocusProviderConfiguration, 'name'>
+> &
+  Partial<CompleteHocuspocusProviderConfiguration> &
+  Required<Pick<CompleteHocuspocusProviderWebsocketConfiguration, 'url'>>;
+
+export const isHocuspocusProviderConfigurationUrl = (
+  data: HocuspocusProviderConfiguration,
+): data is HocuspocusProviderConfigurationUrl => {
+  return 'url' in data;
+};
+
+type CollaborationProviderConfiguration = HocuspocusProviderConfiguration & {
+  canEdit: boolean;
+};
+
+export class CollaborationProvider extends HocuspocusProvider {
+  /**
+   * If the user can edit the document
+   */
+  public canEdit = false;
+
+  /**
+   * If the long polling is started
+   * it is used to avoid starting it multiple times
+   * when the websocket is failed.
+   */
+  public isLongPollingStarted = false;
+
+  /**
+   * If the document is syncing with the server
+   * it is used to avoid starting it multiple times.
+   */
+  public isSyncing = false;
+  /**
+   * The document can pass out of sync
+   * then sync again with a next updates so
+   * we add a counter to avoid syncing the document
+   * to quickly.
+   */
+  public seemsUnsyncCount = 0;
+  public seemsUnsyncMaxCount = 5;
+
+  /**
+   * In Safari or Firefox the websocket takes time before passing in
+   * mode failed, it can takes up to 1 minutes. To avoid this latence
+   * we set isWebsocketFailed to true, it is connects it will switch
+   * to false.
+   */
+  public isWebsocketFailed = true;
+  /**
+   * There is a ping-pong mechanism with awareness, receipt awareness is send again,
+   * it creates useless requests.
+   * We use this variable to avoid treating the same awareness message twice.
+   */
+  private treatedAwarenessMessage: string | null = null;
+  /**
+   * Server-Sent Events
+   */
+  protected sse: EventSource | null = null;
+  /**
+   * Polling timeout
+   * It is used to avoid starting the polling to quickly
+   * to let the class init properly.
+   */
+  protected pollTimeout: NodeJS.Timeout | null = null;
+  /**
+   * Easy way to get the url of the server
+   */
+  protected url = '';
+
+  public constructor(configuration: CollaborationProviderConfiguration) {
+    let url = '';
+    if (isHocuspocusProviderConfigurationUrl(configuration)) {
+      url = configuration.url;
+      let withWS = true;
+      if (
+        new URLSearchParams(window.location.search).get('withoutWS') === 'true'
+      ) {
+        withWS = false;
+      }
+
+      configuration.url = !withWS ? 'ws://localhost:6666' : configuration.url;
+    }
+
+    super(configuration);
+
+    this.url = url;
+    this.canEdit = configuration.canEdit;
+
+    if (configuration.canEdit) {
+      this.on('outgoingMessage', this.onPollOutgoingMessage.bind(this));
+    }
+  }
+
+  public setPollDefaultValues(): void {
+    this.isLongPollingStarted = false;
+    this.isWebsocketFailed = false;
+    this.seemsUnsyncCount = 0;
+    this.sse?.close();
+    this.sse = null;
+    if (this.pollTimeout) {
+      clearTimeout(this.pollTimeout);
+    }
+  }
+
+  public destroy(): void {
+    super.destroy();
+    this.setPollDefaultValues();
+  }
+
+  public onStatus({ status }: onStatusParameters) {
+    if (status === WebSocketStatus.Connecting) {
+      this.isWebsocketFailed = true;
+      if (this.pollTimeout) {
+        clearTimeout(this.pollTimeout);
+      }
+      this.pollTimeout = setTimeout(() => {
+        this.initPolling();
+      }, 5000);
+    } else if (status === WebSocketStatus.Connected) {
+      this.setPollDefaultValues();
+    }
+
+    super.onStatus({ status });
+  }
+
+  public initPolling() {
+    if (this.isLongPollingStarted || !this.isWebsocketFailed) {
+      return;
+    }
+
+    this.isLongPollingStarted = true;
+    void this.pollSync(true);
+    this.initCollaborationSSE();
+  }
+
+  protected toPollUrl(endpoint: string): string {
+    let pollUrl = this.url.replace('ws:', 'http:');
+    if (pollUrl.includes('wss:')) {
+      pollUrl = pollUrl.replace('wss:', 'https:');
+    }
+
+    pollUrl = pollUrl.replace('/ws/', '/ws/poll/' + endpoint + '/');
+
+    // To have our requests not cached
+    return `${pollUrl}&${Date.now()}`;
+  }
+
+  protected isDuplicateAwareness(message64: string): boolean {
+    if (this.treatedAwarenessMessage === message64) {
+      return true;
+    }
+
+    this.treatedAwarenessMessage = message64;
+
+    return false;
+  }
+
+  /**
+   * Outgoing message event
+   *
+   * Sent to the server the message to
+   * be sent to the other users
+   */
+  public async onPollOutgoingMessage({ message }: onOutgoingMessageParameters) {
+    if (!this.isWebsocketFailed || !this.canEdit) {
+      return;
+    }
+
+    const message64 = Buffer.from(message.toUint8Array()).toString('base64');
+    if (this.isDuplicateAwareness(message64)) {
+      return;
+    }
+
+    try {
+      const { updated } = await pollOutgoingMessageRequest({
+        pollUrl: this.toPollUrl('message'),
+        message64,
+      });
+
+      if (!updated) {
+        await this.pollSync();
+      }
+    } catch (error: unknown) {
+      if (isAPIError(error)) {
+        // The user is not allowed to send messages
+        if (error.status === 403) {
+          this.off('outgoingMessage', this.onPollOutgoingMessage.bind(this));
+          this.canEdit = false;
+        }
+      }
+    }
+  }
+
+  /**
+   * EventSource is a API for opening an HTTP
+   * connection for receiving push notifications
+   * from a server in real-time.
+   * We use it to sync the document with the server
+   */
+  protected initCollaborationSSE() {
+    if (!this.isWebsocketFailed) {
+      return;
+    }
+
+    this.sse = new EventSource(this.toPollUrl('message'), {
+      withCredentials: true,
+    });
+
+    this.sse.onmessage = (event) => {
+      const { updatedDoc64, stateFingerprint, awareness64 } = JSON.parse(
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
+        event.data,
+      ) as {
+        updatedDoc64?: string;
+        stateFingerprint?: string;
+        awareness64?: string;
+      };
+
+      if (awareness64) {
+        if (this.isDuplicateAwareness(awareness64)) {
+          return;
+        }
+
+        this.treatedAwarenessMessage = awareness64;
+        const awareness = Buffer.from(awareness64, 'base64');
+
+        this.onMessage({
+          data: awareness,
+        } as MessageEvent);
+      }
+
+      if (updatedDoc64) {
+        this.document.transact(() => {
+          Y.applyUpdate(this.document, Buffer.from(updatedDoc64, 'base64'));
+        }, this);
+      }
+
+      const localStateFingerprint = this.getStateFingerprint(this.document);
+      if (localStateFingerprint !== stateFingerprint) {
+        void this.pollSync();
+      } else {
+        this.seemsUnsyncCount = 0;
+      }
+    };
+
+    this.sse.onopen = () => {};
+
+    this.sse.onerror = (err) => {
+      console.error('SSE error:', err);
+      this.sse?.close();
+
+      setTimeout(() => {
+        this.initCollaborationSSE();
+      }, 5000);
+    };
+  }
+
+  /**
+   * Sync the document with the server.
+   *
+   * In some rare cases, the document may be out of sync.
+   * We use a fingerprint to compare documents,
+   * it happens that the local fingerprint is different from the server one
+   * when awareness plus the document are updated quickly.
+   * The system is resilient to this kind of problems, so `seemsUnsyncCount` should
+   * go back to 0 after a few seconds. If not, we will force a sync.
+   */
+  public async pollSync(forseSync = false) {
+    if (!this.isWebsocketFailed || this.isSyncing) {
+      return;
+    }
+
+    this.seemsUnsyncCount++;
+
+    if (this.seemsUnsyncCount < this.seemsUnsyncMaxCount && !forseSync) {
+      return;
+    }
+
+    this.isSyncing = true;
+
+    try {
+      const { syncDoc64 } = await postPollSyncRequest({
+        pollUrl: this.toPollUrl('sync'),
+        localDoc64: toBase64(Y.encodeStateAsUpdate(this.document)),
+      });
+
+      if (syncDoc64) {
+        const uint8Array = Buffer.from(syncDoc64, 'base64');
+        Y.applyUpdate(this.document, uint8Array);
+        this.seemsUnsyncCount = 0;
+      }
+    } catch (error) {
+      console.error('Polling sync failed:', error);
+    } finally {
+      this.isSyncing = false;
+    }
+  }
+
+  /**
+   * Create a hash SHA-256 of the state vector of the document.
+   * Usefull to compare the state of the document.
+   * @param doc
+   * @returns
+   */
+  public getStateFingerprint(doc: Y.Doc): string {
+    const stateVector = Y.encodeStateVector(doc);
+    return crypto.createHash('sha256').update(stateVector).digest('base64');
+  }
+}
@@ -0,0 +1,179 @@
+import { WebSocketStatus } from '@hocuspocus/provider';
+import fetchMock from 'fetch-mock';
+import * as Y from 'yjs';
+
+if (typeof EventSource === 'undefined') {
+  const mockEventSource = jest.fn();
+  class MockEventSource {
+    constructor(...args: any[]) {
+      return mockEventSource(...args);
+    }
+  }
+  (global as any).EventSource = MockEventSource;
+}
+
+import { CollaborationProvider } from '../CollaborationProvider';
+
+const mockApplyUpdate = jest.fn();
+jest.mock('yjs', () => ({
+  ...jest.requireActual('yjs'),
+  applyUpdate: (...args: any) => mockApplyUpdate(...args),
+}));
+
+describe('CollaborationProvider', () => {
+  let config: any;
+  let provider: CollaborationProvider;
+  let fakeWebsocketProvider: any;
+
+  beforeEach(() => {
+    fakeWebsocketProvider = {
+      on: jest.fn(),
+      open: jest.fn(),
+      attach: jest.fn(),
+    };
+    config = {
+      name: 'test',
+      url: 'ws://localhost/ws/',
+      canEdit: true,
+      websocketProvider: fakeWebsocketProvider,
+    };
+    provider = new CollaborationProvider(config);
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+    fetchMock.restore();
+  });
+
+  test('constructor initializes properties and attaches event handlers', () => {
+    expect(provider.canEdit).toBe(true);
+    expect((provider as any).url).toBe('ws://localhost/ws/');
+    expect(fakeWebsocketProvider.on).toHaveBeenCalled();
+  });
+
+  test('getStateFingerprint returns a consistent hash', () => {
+    const fingerprint1 = provider.getStateFingerprint(provider.document);
+    const fingerprint2 = provider.getStateFingerprint(provider.document);
+    expect(typeof fingerprint1).toBe('string');
+    expect(fingerprint1).toBe(fingerprint2);
+  });
+
+  test('onPollOutgoingMessage does nothing when websocket is not failed', async () => {
+    fetchMock.post(/http:\/\/localhost\/ws\/poll\/message\/.*/, {
+      body: JSON.stringify({ updated: false }),
+    });
+
+    provider.isWebsocketFailed = false;
+    const dummyMessage = {
+      toUint8Array: () => new Uint8Array([1, 2, 3]),
+    } as any;
+    await provider.onPollOutgoingMessage({ message: dummyMessage });
+    expect(fetchMock.called()).toBe(false);
+  });
+
+  test('onPollOutgoingMessage calls pollOutgoingMessageRequest and pollSync when updated is false', async () => {
+    provider.isWebsocketFailed = true;
+    const dummyMessage = {
+      toUint8Array: () => new Uint8Array([4, 5, 6]),
+    } as any;
+    fetchMock.post(/http:\/\/localhost\/ws\/poll\/message\/.*/, {
+      body: JSON.stringify({ updated: false }),
+    });
+    const pollSyncSpy = jest.spyOn(provider, 'pollSync').mockResolvedValue();
+    await provider.onPollOutgoingMessage({ message: dummyMessage });
+    expect(fetchMock.lastUrl()).toContain('http://localhost/ws/poll/message/');
+    expect(pollSyncSpy).toHaveBeenCalled();
+  });
+
+  test('onPollOutgoingMessage disables editing (canEdit becomes false) if API returns a 403 error', async () => {
+    provider.isWebsocketFailed = true;
+    const dummyMessage = {
+      toUint8Array: () => new Uint8Array([7, 8, 9]),
+    } as any;
+    fetchMock.post(/http:\/\/localhost\/ws\/poll\/message\/.*/, {
+      status: 403,
+      body: JSON.stringify({}),
+    });
+
+    // Stub the off method (inherited from event emitter) to observe its call.
+    provider.off = jest.fn();
+    await provider.onPollOutgoingMessage({ message: dummyMessage });
+    expect(fetchMock.lastUrl()).toContain('http://localhost/ws/poll/message/');
+    expect(provider.off).toHaveBeenCalled();
+    expect(provider.canEdit).toBe(false);
+  });
+
+  test('pollSync does nothing if websocket is not failed', async () => {
+    fetchMock.post(/http:\/\/localhost\/ws\/poll\/sync\/.*/, {
+      body: JSON.stringify({ syncDoc64: '123456' }),
+    });
+
+    provider.isWebsocketFailed = false;
+    await provider.pollSync();
+    expect(fetchMock.called()).toBe(false);
+  });
+
+  test('pollSync calls postPollSyncRequest when unsync count threshold is reached', async () => {
+    const update = Y.encodeStateAsUpdate(provider.document);
+    const syncDoc64 = Buffer.from(update).toString('base64');
+
+    fetchMock.post(/http:\/\/localhost\/ws\/poll\/sync\/.*/, {
+      body: JSON.stringify({ syncDoc64 }),
+    });
+
+    provider.isWebsocketFailed = true;
+    provider.seemsUnsyncCount = provider.seemsUnsyncMaxCount - 1;
+
+    await provider.pollSync();
+    const uint8Array = Buffer.from(syncDoc64, 'base64');
+    expect(mockApplyUpdate).toHaveBeenCalledWith(provider.document, uint8Array);
+  });
+
+  describe('onStatus', () => {
+    beforeEach(() => {
+      jest.useFakeTimers();
+    });
+
+    afterEach(() => {
+      jest.useRealTimers();
+    });
+
+    test('sets websocket failed and schedules polling on Connecting', () => {
+      const initPollingSpy = jest
+        .spyOn(provider, 'initPolling')
+        .mockImplementation(() => {});
+      const superOnStatusSpy = jest.spyOn(
+        Object.getPrototypeOf(provider),
+        'onStatus',
+      );
+
+      provider.onStatus({ status: WebSocketStatus.Connecting });
+
+      expect(provider.isWebsocketFailed).toBe(true);
+      // Fast-forward timer to trigger the scheduled initPolling call.
+      jest.runAllTimers();
+      expect(initPollingSpy).toHaveBeenCalled();
+
+      expect(superOnStatusSpy).toHaveBeenCalledWith({
+        status: WebSocketStatus.Connecting,
+      });
+    });
+
+    test('calls setPollDefaultValues on Connected', () => {
+      const setPollDefaultValuesSpy = jest
+        .spyOn(provider, 'setPollDefaultValues')
+        .mockImplementation(() => {});
+      const superOnStatusSpy = jest.spyOn(
+        Object.getPrototypeOf(provider),
+        'onStatus',
+      );
+
+      provider.onStatus({ status: WebSocketStatus.Connected });
+
+      expect(setPollDefaultValuesSpy).toHaveBeenCalled();
+      expect(superOnStatusSpy).toHaveBeenCalledWith({
+        status: WebSocketStatus.Connected,
+      });
+    });
+  });
+});
@@ -4,10 +4,13 @@ import { create } from 'zustand';

 import { Base64 } from '@/features/docs/doc-management';

+import { CollaborationProvider } from '../libs/CollaborationProvider';
+
 export interface UseCollaborationStore {
  createProvider: (
    providerUrl: string,
    storeId: string,
+    canEdit: boolean,
    initialDoc?: Base64,
  ) => HocuspocusProvider;
  destroyProvider: () => void;
@@ -20,7 +23,7 @@ const defaultValues = {

 export const useProviderStore = create<UseCollaborationStore>((set, get) => ({
  ...defaultValues,
-  createProvider: (wsUrl, storeId, initialDoc) => {
+  createProvider: (wsUrl, storeId, canEdit, initialDoc) => {
    const doc = new Y.Doc({
      guid: storeId,
    });
@@ -29,10 +32,11 @@ export const useProviderStore = create<UseCollaborationStore>((set, get) => ({
      Y.applyUpdate(doc, Buffer.from(initialDoc, 'base64'));
    }

-    const provider = new HocuspocusProvider({
+    const provider = new CollaborationProvider({
      url: wsUrl,
      name: storeId,
      document: doc,
+      canEdit,
    });

    set({
@@ -12,6 +12,9 @@ export const currentDocRole = (abilities: Doc['abilities']): Role => {
        : Role.READER;
 };

+export const toBase64 = (str: Uint8Array) =>
+  Buffer.from(str).toString('base64');
+
 export const base64ToYDoc = (base64: string) => {
  const uint8Array = Buffer.from(base64, 'base64');
  const ydoc = new Y.Doc();
@@ -63,7 +63,7 @@ const DocPage = ({ id }: DocProps) => {
  const { addTask } = useBroadcastStore();
  const queryClient = useQueryClient();
  const { replace } = useRouter();
-  useCollaboration(doc?.id, doc?.content);
+  useCollaboration(doc?.id, doc?.content, doc?.abilities.partial_update);

  useEffect(() => {
    if (doc?.title) {
@@ -0,0 +1,185 @@
+/* eslint-disable @typescript-eslint/no-require-imports */
+import { EventEmitter } from 'events';
+
+import { MessageType } from '@hocuspocus/server';
+import { Response } from 'express';
+import * as Y from 'yjs';
+
+import { PollSync, PollSyncRequest } from '../src/libs/PollSync';
+
+const { base64ToYDoc } = require('@/utils');
+const { logger } = require('@/utils');
+
+const mockEncodeStateAsUpdate = jest.fn();
+jest.mock('yjs', () => ({
+  ...jest.requireActual('yjs'),
+  encodeStateAsUpdate: () => mockEncodeStateAsUpdate(),
+}));
+
+jest.mock('@/utils', () => ({
+  base64ToYDoc: jest.fn((_b64: string) => new Y.Doc()),
+  toBase64: jest.fn((data: Uint8Array) => Buffer.from(data).toString('base64')),
+  logger: jest.fn(),
+}));
+
+jest.mock('@hocuspocus/server', () => {
+  const originalModule = jest.requireActual('@hocuspocus/server');
+  return {
+    __esModule: true,
+    ...originalModule,
+    IncomingMessage: jest.fn().mockImplementation((buf: Buffer) => ({
+      buffer: buf,
+      readVarString: jest.fn(() => 'testRoom'),
+      readVarUint: jest.fn(() => MessageType.Sync),
+      writeVarUint: jest.fn(),
+      decoder: {},
+      encoder: {},
+    })),
+  };
+});
+
+describe('PollSync', () => {
+  let req: PollSyncRequest<any>;
+  let res: Response;
+  let dummyDoc: any;
+  let pollSync: PollSync<any>;
+  let mockHocuspocusServer: any;
+
+  beforeEach(() => {
+    req = Object.assign(new EventEmitter(), {
+      on: jest.fn((event, cb) => {
+        // For 'close' event, store the callback for manual trigger in tests.
+        if (event === 'close') {
+          req.destroy = cb;
+        }
+      }),
+    }) as unknown as PollSyncRequest<any>;
+
+    res = {
+      write: jest.fn(),
+      end: jest.fn(),
+    } as unknown as Response;
+
+    // Create a dummy document with required methods/properties
+    dummyDoc = {
+      name: 'testRoom',
+      merge: jest.fn((_other: Y.Doc) => {
+        // Simulate merging by returning a new Y.Doc instance
+        return new Y.Doc();
+      }),
+      getConnections: jest.fn(() => [{ handleMessage: jest.fn() }]),
+      awareness: {
+        on: jest.fn(),
+        off: jest.fn(),
+      },
+      addDirectConnection: jest.fn(),
+      removeDirectConnection: jest.fn(),
+      on: jest.fn(),
+      off: jest.fn(),
+    };
+
+    pollSync = new PollSync(req, 'testRoom', true);
+    // Pre-set the document for non-init tests
+    (pollSync as any)._hpDocument = dummyDoc;
+
+    // Create a dummy Hocuspocus server
+    mockHocuspocusServer = {
+      loadingDocuments: { get: jest.fn() },
+      documents: new Map<string, any>(),
+      createDocument: jest.fn(() => ({
+        name: 'newDoc',
+        merge: (doc: Y.Doc) => doc,
+      })),
+    };
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('initHocuspocusDocument', () => {
+    it('should return document from loadingDocuments when available', async () => {
+      mockHocuspocusServer.loadingDocuments.get.mockResolvedValue(dummyDoc);
+      pollSync = new PollSync(req, 'testRoom', true);
+      const doc = await pollSync.initHocuspocusDocument(mockHocuspocusServer);
+      expect(doc).toBe(dummyDoc);
+      expect(mockHocuspocusServer.loadingDocuments.get).toHaveBeenCalledWith(
+        'testRoom',
+      );
+    });
+
+    it('should return document from documents when available', async () => {
+      mockHocuspocusServer.loadingDocuments.get.mockResolvedValue(undefined);
+      mockHocuspocusServer.documents.set('testRoom', dummyDoc);
+      pollSync = new PollSync(req, 'testRoom', false);
+      const doc = await pollSync.initHocuspocusDocument(mockHocuspocusServer);
+      expect(doc).toBe(dummyDoc);
+    });
+
+    it('should create a new document when none exists and canEdit is true', async () => {
+      mockHocuspocusServer.loadingDocuments.get.mockResolvedValue(undefined);
+      pollSync = new PollSync(req, 'testRoom', true);
+      const newDoc = { name: 'newDoc', merge: (doc: any) => doc };
+      mockHocuspocusServer.createDocument.mockResolvedValue(newDoc);
+      const doc = await pollSync.initHocuspocusDocument(mockHocuspocusServer);
+      expect(doc).toBe(newDoc);
+      expect(mockHocuspocusServer.createDocument).toHaveBeenCalled();
+    });
+  });
+
+  describe('sync', () => {
+    it('should encode state without merging when canEdit is false', () => {
+      // When user cannot edit, merge should not be called.
+      pollSync = new PollSync(req, 'testRoom', false);
+      (pollSync as any)._hpDocument = dummyDoc;
+      mockEncodeStateAsUpdate.mockReturnValue(Uint8Array.from([1, 2, 3]));
+
+      const result = pollSync.sync('dummyLocalDoc64');
+      expect(dummyDoc.merge).not.toHaveBeenCalled();
+      expect(result).toBe(
+        Buffer.from(Uint8Array.from([1, 2, 3])).toString('base64'),
+      );
+    });
+
+    it('should merge local doc when canEdit is true', () => {
+      pollSync = new PollSync(req, 'testRoom', true);
+      (pollSync as any)._hpDocument = dummyDoc;
+      const localDoc = new Y.Doc();
+      // Mock base64ToYDoc to return our localDoc
+      base64ToYDoc.mockReturnValue(localDoc);
+      mockEncodeStateAsUpdate.mockReturnValue(Uint8Array.from([4, 5, 6]));
+      pollSync.sync('localDoc64');
+      expect(dummyDoc.merge).toHaveBeenCalledWith(localDoc);
+    });
+  });
+
+  describe('sendClientsMessages', () => {
+    it('should log an error if room names do not match', () => {
+      // Set doc name different from what IncomingMessage returns ('testRoom')
+      dummyDoc.name = 'differentRoom';
+      (pollSync as any)._hpDocument = dummyDoc;
+      const fakeMessage = Buffer.from('fakeMessage').toString('base64');
+      pollSync.sendClientsMessages(fakeMessage);
+      expect(logger).toHaveBeenCalled();
+    });
+  });
+
+  describe('pullClientsMessages', () => {
+    it('should register event listeners and cleanup on request close', () => {
+      (pollSync as any)._hpDocument = dummyDoc;
+      pollSync.pullClientsMessages(res);
+      expect(dummyDoc.addDirectConnection).toHaveBeenCalled();
+      expect(dummyDoc.on).toHaveBeenCalled();
+      expect(dummyDoc.awareness.on).toHaveBeenCalled();
+
+      // Simulate a 'close' event on the request
+      if (req.destroy) {
+        req.destroy();
+      }
+      expect(dummyDoc.removeDirectConnection).toHaveBeenCalled();
+      // Verify that document listeners are removed (off was called)
+      expect(dummyDoc.off).toHaveBeenCalled();
+      expect(dummyDoc.awareness.off).toHaveBeenCalled();
+    });
+  });
+});
@@ -0,0 +1,193 @@
+import { Response } from 'express';
+
+import {
+  collaborationPollPostMessageHandler,
+  collaborationPollSSEMessageHandler,
+  collaborationPollSyncDocHandler,
+} from '../src/handlers/collaborationPollHandler';
+
+const mockInitHocuspocusDocument = jest.fn();
+const mockSendClientsMessages = jest.fn();
+const mockSync = jest.fn();
+const mockPullClientsMessages = jest.fn();
+
+jest.mock('@/libs/PollSync', () => {
+  return {
+    PollSync: jest.fn().mockImplementation(() => ({
+      initHocuspocusDocument: mockInitHocuspocusDocument,
+      sendClientsMessages: mockSendClientsMessages,
+      sync: mockSync,
+      pullClientsMessages: mockPullClientsMessages,
+    })),
+  };
+});
+
+jest.mock('@/servers/hocusPocusServer', () => ({
+  hocusPocusServer: {},
+}));
+
+// Helper function to create a mock response
+function createResponse<T>() {
+  const res: Partial<Response<T>> = {};
+  res.status = jest.fn().mockReturnValue(res);
+  res.json = jest.fn().mockReturnValue(res);
+  res.setHeader = jest.fn();
+  res.write = jest.fn();
+  res.headersSent = false;
+  return res as Response<T>;
+}
+
+describe('collaborationPollPostMessageHandler', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+    mockInitHocuspocusDocument.mockResolvedValue({ doc: 'exists' });
+  });
+
+  it('should return 403 if user is not allowed to edit', async () => {
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'False' },
+      body: { message64: 'testMessage' },
+    } as any;
+    const res = createResponse();
+    await collaborationPollPostMessageHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(403);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Forbidden' });
+  });
+
+  it('should return 400 if room is not provided', async () => {
+    const req = {
+      query: {},
+      headers: { 'x-can-edit': 'True' },
+      body: { message64: 'testMessage' },
+    } as any;
+    const res = createResponse();
+    await collaborationPollPostMessageHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(400);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Room name not provided' });
+  });
+
+  it('should return 404 if document is not found', async () => {
+    mockInitHocuspocusDocument.mockResolvedValue(null);
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'True' },
+      body: { message64: 'testMessage' },
+    } as any;
+    const res = createResponse();
+    res.headersSent = false;
+    await collaborationPollPostMessageHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(404);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Document not found' });
+  });
+
+  it('should process message and return updated true when successful', async () => {
+    // Reset headerSent to false to simulate a proper response
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'True' },
+      body: { message64: 'testMessage' },
+    } as any;
+    const res = createResponse();
+    res.headersSent = false;
+    await collaborationPollPostMessageHandler(req, res);
+    expect(mockSendClientsMessages).toHaveBeenCalledWith('testMessage');
+    expect(res.status).toHaveBeenCalledWith(200);
+    expect(res.json).toHaveBeenCalledWith({ updated: true });
+  });
+});
+
+describe('collaborationPollSyncDocHandler', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+    mockInitHocuspocusDocument.mockResolvedValue({ doc: 'exists' });
+    mockSync.mockReturnValue('syncDocEncoded');
+  });
+
+  it('should return 400 if room is not provided', async () => {
+    const req = {
+      query: {},
+      headers: { 'x-can-edit': 'True' },
+      body: { localDoc64: 'localDocEncoded' },
+    } as any;
+    const res = createResponse();
+    await collaborationPollSyncDocHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(400);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Room name not provided' });
+  });
+
+  it('should return 404 if document is not found', async () => {
+    mockInitHocuspocusDocument.mockResolvedValue(null);
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'True' },
+      body: { localDoc64: 'localDocEncoded' },
+    } as any;
+    const res = createResponse();
+    await collaborationPollSyncDocHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(404);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Document not found' });
+  });
+
+  it('should sync document and return syncDoc64 when successful', async () => {
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'True' },
+      body: { localDoc64: 'localDocEncoded' },
+    } as any;
+    const res = createResponse();
+    res.headersSent = false;
+    await collaborationPollSyncDocHandler(req, res);
+    expect(mockSync).toHaveBeenCalledWith('localDocEncoded');
+    expect(res.status).toHaveBeenCalledWith(200);
+    expect(res.json).toHaveBeenCalledWith({ syncDoc64: 'syncDocEncoded' });
+  });
+});
+
+describe('collaborationPollSSEMessageHandler', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+    mockInitHocuspocusDocument.mockResolvedValue({ doc: 'exists' });
+  });
+
+  it('should return 400 if room is not provided', async () => {
+    const req = {
+      query: {},
+      headers: { 'x-can-edit': 'True' },
+    } as any;
+    const res = createResponse();
+    await collaborationPollSSEMessageHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(400);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Room name not provided' });
+  });
+
+  it('should return 404 if document is not found', async () => {
+    mockInitHocuspocusDocument.mockResolvedValue(null);
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'True' },
+    } as any;
+    const res = createResponse();
+    await collaborationPollSSEMessageHandler(req, res);
+    expect(res.status).toHaveBeenCalledWith(404);
+    expect(res.json).toHaveBeenCalledWith({ error: 'Document not found' });
+  });
+
+  it('should set SSE headers and send connected message when successful', async () => {
+    const req = {
+      query: { room: 'test-room' },
+      headers: { 'x-can-edit': 'True' },
+    } as any;
+    const res = createResponse();
+    res.headersSent = false;
+    await collaborationPollSSEMessageHandler(req, res);
+    expect(res.setHeader).toHaveBeenCalledWith(
+      'Content-Type',
+      'text/event-stream',
+    );
+    expect(res.setHeader).toHaveBeenCalledWith('Cache-Control', 'no-cache');
+    expect(res.setHeader).toHaveBeenCalledWith('Connection', 'keep-alive');
+    expect(res.write).toHaveBeenCalledWith(': connected\n\n');
+    expect(mockPullClientsMessages).toHaveBeenCalledWith(res);
+  });
+});
@@ -7,6 +7,7 @@ var config = {
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/../src/$1',
    '^@blocknote/server-util$': '<rootDir>/../__mocks__/mock.js',
+    '^y-protocols/awareness.js$': '<rootDir>/../__mocks__/mock.js',
  },
 };
 export default config;
@@ -23,6 +23,7 @@
    "cors": "2.8.5",
    "express": "4.21.2",
    "express-ws": "5.0.2",
+    "uuid": "11.0.5",
    "y-protocols": "1.0.6",
    "yjs": "13.6.23"
  },
@@ -4,7 +4,8 @@ export const COLLABORATION_SERVER_ORIGIN =
  process.env.COLLABORATION_SERVER_ORIGIN || 'http://localhost:3000';
 export const COLLABORATION_SERVER_SECRET =
  process.env.COLLABORATION_SERVER_SECRET || 'secret-api-key';
-export const Y_PROVIDER_API_KEY =
-  process.env.Y_PROVIDER_API_KEY || 'yprovider-api-key';
 export const PORT = Number(process.env.PORT || 4444);
 export const SENTRY_DSN = process.env.SENTRY_DSN || '';
+export const SENTRY_ENV = process.env.SENTRY_ENV || 'Development';
+export const Y_PROVIDER_API_KEY =
+  process.env.Y_PROVIDER_API_KEY || 'yprovider-api-key';
@@ -0,0 +1,132 @@
+import { Response } from 'express';
+
+import { PollSync, PollSyncRequest } from '@/libs/PollSync';
+import { hocusPocusServer } from '@/servers/hocusPocusServer';
+
+interface CollaborationPollPostMessagePayload {
+  message64: string;
+}
+interface CollaborationPollPostMessageResponse {
+  updated?: boolean;
+  error?: string;
+}
+
+export const collaborationPollPostMessageHandler = async (
+  req: PollSyncRequest<CollaborationPollPostMessagePayload>,
+  res: Response<CollaborationPollPostMessageResponse>,
+) => {
+  const room = req.query.room;
+  const canEdit = req.headers['x-can-edit'] === 'True';
+
+  // Only editors can send messages
+  if (!canEdit) {
+    res.status(403).json({ error: 'Forbidden' });
+    return;
+  }
+
+  if (!room) {
+    res.status(400).json({ error: 'Room name not provided' });
+    return;
+  }
+
+  const pollSynch = new PollSync<CollaborationPollPostMessagePayload>(
+    req,
+    room,
+    canEdit,
+  );
+  const hpDoc = await pollSynch.initHocuspocusDocument(hocusPocusServer);
+
+  if (!res.headersSent && !hpDoc) {
+    res.status(404).json({ error: 'Document not found' });
+    return;
+  }
+
+  pollSynch.sendClientsMessages(req.body.message64);
+
+  if (!res.headersSent) {
+    res.status(200).json({ updated: true });
+  }
+};
+
+/**
+ * Polling way of handling collaboration
+ * @param req
+ * @param res
+ */
+interface CollaborationPollSyncDocResponse {
+  syncDoc64?: string;
+  error?: string;
+}
+interface CollaborationPollSyncDocBody {
+  localDoc64: string;
+}
+
+export const collaborationPollSyncDocHandler = async (
+  req: PollSyncRequest<CollaborationPollSyncDocBody>,
+  res: Response<CollaborationPollSyncDocResponse>,
+) => {
+  const room = req.query.room;
+  const canEdit = req.headers['x-can-edit'] === 'True';
+
+  if (!room) {
+    res.status(400).json({ error: 'Room name not provided' });
+    return;
+  }
+
+  const pollSynch = new PollSync<CollaborationPollSyncDocBody>(
+    req,
+    room,
+    canEdit,
+  );
+  const hpDoc = await pollSynch.initHocuspocusDocument(hocusPocusServer);
+
+  if (!hpDoc) {
+    res.status(404).json({ error: 'Document not found' });
+    return;
+  }
+
+  const syncDoc64 = pollSynch.sync(req.body.localDoc64);
+
+  if (!res.headersSent) {
+    res.status(200).json({ syncDoc64 });
+  }
+};
+
+/**
+ * SSE message handling
+ * @param req
+ * @param res
+ */
+interface CollaborationPollSSEMessageResponse {
+  updatedDoc64?: string;
+  stateFingerprint?: string;
+  awareness64?: string;
+  error?: string;
+}
+export const collaborationPollSSEMessageHandler = async (
+  req: PollSyncRequest<void>,
+  res: Response<CollaborationPollSSEMessageResponse>,
+) => {
+  const room = req.query.room;
+  const canEdit = req.headers['x-can-edit'] === 'True';
+
+  if (!room) {
+    res.status(400).json({ error: 'Room name not provided' });
+    return;
+  }
+
+  const pollSynch = new PollSync<void>(req, room, canEdit);
+  const hpDoc = await pollSynch.initHocuspocusDocument(hocusPocusServer);
+
+  if (!hpDoc) {
+    res.status(404).json({ error: 'Document not found' });
+    return;
+  }
+
+  res.setHeader('Content-Type', 'text/event-stream');
+  res.setHeader('Cache-Control', 'no-cache');
+  res.setHeader('Connection', 'keep-alive');
+  res.write(': connected\n\n');
+
+  pollSynch.pullClientsMessages(res);
+};
@@ -1,3 +1,4 @@
 export * from './collaborationResetConnectionsHandler';
-export * from './collaborationWSHandler';
+export * from './collaborationPollHandler';
 export * from './convertMarkdownHandler';
+export * from './collaborationWSHandler';
@@ -1,6 +1,6 @@
-export const promiseDone = () => {
-  let done: (value: void | PromiseLike<void>) => void = () => {};
-  const promise = new Promise<void>((resolve) => {
+export const promiseDone = <T = void>() => {
+  let done: (value: T | PromiseLike<T>) => void = () => {};
+  const promise = new Promise<T>((resolve) => {
    done = resolve;
  });

@@ -0,0 +1,227 @@
+/* eslint-disable @typescript-eslint/no-unused-vars */
+import crypto from 'crypto';
+
+import {
+  AwarenessUpdate,
+  Document,
+  Hocuspocus,
+  IncomingMessage,
+  MessageType,
+  OutgoingMessage,
+} from '@hocuspocus/server';
+import { Request, Response } from 'express';
+import { v4 as uuid } from 'uuid';
+import { applyAwarenessUpdate } from 'y-protocols/awareness.js';
+import { readSyncMessage } from 'y-protocols/sync';
+import * as Y from 'yjs';
+
+import { base64ToYDoc, logger, toBase64 } from '@/utils';
+
+export type PollSyncRequestQuery = {
+  room?: string;
+};
+
+export type PollSyncRequest<T> = Request<
+  object,
+  object,
+  T,
+  PollSyncRequestQuery
+>;
+
+export class PollSync<T> {
+  public readonly canEdit: boolean;
+  public readonly req: PollSyncRequest<T>;
+  public readonly room: string;
+  private _hpDocument?: Document;
+
+  constructor(req: PollSyncRequest<T>, room: string, canEdit: boolean) {
+    this.room = room;
+    this.canEdit = canEdit;
+    this.req = req;
+  }
+
+  public get hpDocument() {
+    return this._hpDocument;
+  }
+
+  public async initHocuspocusDocument(hocusPocusServer: Hocuspocus) {
+    const { req, room, canEdit } = this;
+    this._hpDocument = await hocusPocusServer.loadingDocuments.get(room);
+
+    if (this._hpDocument) {
+      return this._hpDocument;
+    }
+
+    this._hpDocument = hocusPocusServer.documents.get(room);
+
+    if (this._hpDocument || (!this._hpDocument && !canEdit)) {
+      return this._hpDocument;
+    }
+
+    /**
+     * createDocument is used to create a new document if it does not exist.
+     * If the document exists, it will return the existing document.
+     */
+    this._hpDocument = await hocusPocusServer.createDocument(
+      room,
+      req,
+      uuid(),
+      {
+        readOnly: false,
+        requiresAuthentication: false,
+        isAuthenticated: false,
+      },
+    );
+
+    return this._hpDocument;
+  }
+
+  /**
+   * Sync the document with the latest changes
+   *
+   * @param localDoc64
+   * @returns
+   */
+  public sync(localDoc64: string): string | undefined {
+    const hpDoc = this.getHpDocument();
+    let syncYDoc = hpDoc;
+
+    // Merge the coming document with the latest changes (only if the user can edit)
+    if (this.canEdit) {
+      const localDoc = base64ToYDoc(localDoc64);
+      syncYDoc = hpDoc.merge(localDoc);
+    }
+
+    return toBase64(Y.encodeStateAsUpdate(syncYDoc));
+  }
+
+  /**
+   * Create a hash SHA-256 of the state vector of the document.
+   * Usefull to compare the state of the document.
+   * @param doc
+   * @returns
+   */
+  protected getStateFingerprint(doc: Y.Doc): string {
+    const stateVector = Y.encodeStateVector(doc);
+    return crypto.createHash('sha256').update(stateVector).digest('base64'); // or 'hex'
+  }
+
+  /**
+   * Send messages to other clients
+   */
+  public sendClientsMessages(message64: string) {
+    const hpDoc = this.getHpDocument();
+    const messageBuffer = Buffer.from(message64, 'base64');
+    const message = new IncomingMessage(messageBuffer);
+    const room = message.readVarString();
+
+    if (hpDoc.name !== room) {
+      logger('Send messages problem, room different', room, hpDoc.name);
+      return;
+    }
+
+    // We write the sync to the current doc - it will propagate to others by itself
+    const type = message.readVarUint() as MessageType;
+    if (type === MessageType.Sync) {
+      message.writeVarUint(MessageType.Sync);
+      readSyncMessage(message.decoder, message.encoder, hpDoc, null);
+    } else if (type === MessageType.Awareness) {
+      const awarenessUpdate = message.readVarUint8Array();
+      applyAwarenessUpdate(
+        hpDoc.awareness,
+        awarenessUpdate,
+        hpDoc.awareness.clientID,
+      );
+    } else {
+      hpDoc.getConnections().forEach((connection) => {
+        connection.handleMessage(messageBuffer);
+      });
+    }
+  }
+
+  /**
+   * Pull messages from other clients
+   *
+   * We listen 2 kind of messages:
+   *  - Document updates (change in the document)
+   *  - Awareness messages (cursor, selection, etc.)
+   *
+   * @param res
+   */
+  public pullClientsMessages(res: Response) {
+    const hpDoc = this.getHpDocument();
+    hpDoc.addDirectConnection();
+
+    const updateMessagesFn = (
+      update: Uint8Array,
+      _origin: string,
+      updatedDoc: Y.Doc,
+      _transaction: Y.Transaction,
+    ) => {
+      res.write(
+        `data: ${JSON.stringify({
+          time: new Date(),
+          updatedDoc64: toBase64(update),
+          stateFingerprint: this.getStateFingerprint(updatedDoc),
+        })}\n\n`,
+      );
+    };
+
+    const destroyFn = (updatedDoc: Y.Doc) => {
+      res.write(
+        `data: ${JSON.stringify({
+          time: new Date(),
+          updatedDoc64: undefined,
+          stateFingerprint: this.getStateFingerprint(updatedDoc),
+        })}\n\n`,
+      );
+
+      hpDoc.off('destroy', destroyFn);
+      hpDoc.off('update', updateMessagesFn);
+
+      // Close the connection
+      res.end();
+    };
+
+    const updateAwarenessFn = ({
+      added,
+      updated,
+      removed,
+    }: AwarenessUpdate) => {
+      const changedClients = added.concat(updated, removed);
+      const awarenessMessage = new OutgoingMessage(
+        this.room,
+      ).createAwarenessUpdateMessage(hpDoc.awareness, changedClients);
+
+      res.write(
+        `data: ${JSON.stringify({
+          time: new Date(),
+          awareness64: toBase64(awarenessMessage.toUint8Array()),
+          stateFingerprint: this.getStateFingerprint(hpDoc),
+        })}\n\n`,
+      );
+    };
+
+    hpDoc.awareness.off('update', updateAwarenessFn);
+    hpDoc.awareness.on('update', updateAwarenessFn);
+    hpDoc.off('update', updateMessagesFn);
+    hpDoc.off('destroy', destroyFn);
+    hpDoc.on('update', updateMessagesFn);
+    hpDoc.on('destroy', destroyFn);
+
+    this.req.on('close', () => {
+      hpDoc.off('update', updateMessagesFn);
+      hpDoc.off('destroy', destroyFn);
+      hpDoc.awareness.off('update', updateAwarenessFn);
+      hpDoc.removeDirectConnection();
+    });
+  }
+
+  protected getHpDocument() {
+    if (!this.hpDocument) {
+      throw new Error('HocusPocus document not initialized');
+    }
+
+    return this.hpDocument;
+  }
+}
@@ -1,5 +1,7 @@
 export const routes = {
  COLLABORATION_WS: '/collaboration/ws/',
+  COLLABORATION_POLL_MESSAGE: '/collaboration/ws/poll/message/',
+  COLLABORATION_POLL_SYNC: '/collaboration/ws/poll/sync/',
  COLLABORATION_RESET_CONNECTIONS: '/collaboration/api/reset-connections/',
  CONVERT_MARKDOWN: '/api/convert-markdown/',
 };
@@ -6,6 +6,9 @@ import expressWebsockets from 'express-ws';

 import { PORT } from '../env';
 import {
+  collaborationPollPostMessageHandler,
+  collaborationPollSSEMessageHandler,
+  collaborationPollSyncDocHandler,
  collaborationResetConnectionsHandler,
  collaborationWSHandler,
  convertMarkdownHandler,
@@ -27,9 +30,24 @@ export const initServer = () => {
  app.use(corsMiddleware);

  /**
-   * Route to handle WebSocket connections
+   * Routes to handle collaboration connections
   */
  app.ws(routes.COLLABORATION_WS, wsSecurity, collaborationWSHandler);
+  app.get(
+    routes.COLLABORATION_POLL_MESSAGE,
+    httpSecurity,
+    collaborationPollSSEMessageHandler,
+  );
+  app.post(
+    routes.COLLABORATION_POLL_MESSAGE,
+    httpSecurity,
+    collaborationPollPostMessageHandler,
+  );
+  app.post(
+    routes.COLLABORATION_POLL_SYNC,
+    httpSecurity,
+    collaborationPollSyncDocHandler,
+  );

  /**
   * Route to reset connections in a room:
@@ -1,11 +1,12 @@
 import * as Sentry from '@sentry/node';
 import { nodeProfilingIntegration } from '@sentry/profiling-node';

-import { SENTRY_DSN } from '../env';
+import { SENTRY_DSN, SENTRY_ENV } from '../env';

 Sentry.init({
  dsn: SENTRY_DSN,
  integrations: [nodeProfilingIntegration()],
  tracesSampleRate: 0.1,
  profilesSampleRate: 1.0,
+  environment: SENTRY_ENV,
 });
@@ -1,3 +1,5 @@
+import * as Y from 'yjs';
+
 import { COLLABORATION_LOGGING } from './env';

 // eslint-disable-next-line @typescript-eslint/no-explicit-any
@@ -8,6 +10,13 @@ export function logger(...args: any[]) {
  }
 }

-export const toBase64 = function (str: Uint8Array) {
-  return Buffer.from(str).toString('base64');
+export const toBase64 = function (uInt8Array: Uint8Array) {
+  return Buffer.from(uInt8Array).toString('base64');
+};
+
+export const base64ToYDoc = (base64: string) => {
+  const uint8Array = Buffer.from(base64, 'base64');
+  const ydoc = new Y.Doc();
+  Y.applyUpdate(ydoc, uint8Array);
+  return ydoc;
 };
@@ -5281,6 +5281,13 @@
  dependencies:
    "@types/node" "*"

+"@types/ws@8.5.13":
+  version "8.5.13"
+  resolved "https://registry.yarnpkg.com/@types/ws/-/ws-8.5.13.tgz#6414c280875e2691d0d1e080b05addbf5cb91e20"
+  integrity sha512-osM/gWBTPKgHV8XkTunnegTRIsvF6owmf5w+JtAfOw472dptdm0dlGv4xCt6GwQRcC2XVOvvRE/0bAoQcL2QkA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/yargs-parser@*":
  version "21.0.3"
  resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-21.0.3.tgz#815e30b786d2e8f0dcd85fd5bcf5e1a04d008f15"
@@ -13934,7 +13941,7 @@ utils-merge@1.0.1:
  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
  integrity sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==

-uuid@^11.0.3:
+uuid@11.0.5, uuid@^11.0.3:
  version "11.0.5"
  resolved "https://registry.yarnpkg.com/uuid/-/uuid-11.0.5.tgz#07b46bdfa6310c92c3fb3953a8720f170427fc62"
  integrity sha512-508e6IcKLrhxKdBbcA2b4KQZlLVp2+J5UwQ6F7Drckkc5N9ZJwFa4TgWtsww9UG8fGHbm6gbV19TdM5pQ4GaIA==
@@ -1,5 +1,5 @@
 apiVersion: v2
 type: application
 name: docs
-version: 2.2.0-beta.1
+version: 2.2.0-beta.2
 appVersion: latest
@@ -82,7 +82,11 @@ ingressCollaborationWS:
  ## @param ingressCollaborationWS.annotations.nginx.ingress.kubernetes.io/proxy-send-timeout
  ## @param ingressCollaborationWS.annotations.nginx.ingress.kubernetes.io/upstream-hash-by
  annotations:
+    nginx.ingress.kubernetes.io/auth-cache-key: "$http_authorization-$arg_room"
+    nginx.ingress.kubernetes.io/auth-cache-duration: 200 30s
    nginx.ingress.kubernetes.io/auth-response-headers: "Authorization, X-Can-Edit, X-User-Id"
+    nginx.ingress.kubernetes.io/auth-snippet: |
+      proxy_set_header Accept "application/json";
    nginx.ingress.kubernetes.io/auth-url: https://impress.example.com/api/v1.0/documents/collaboration-auth/
    nginx.ingress.kubernetes.io/enable-websocket: "true"
    nginx.ingress.kubernetes.io/proxy-read-timeout: "86400"
Author	SHA1	Message	Date
Anthony LC	f716c498e5	📝(documentation) add collaboration architecture doc Documentation to describe the collaboration architecture in the project.	2025-02-20 11:20:50 +01:00
Anthony LC	29a4147b5e	fixup! 🔧(helm) adapt helm nginx	2025-02-20 11:20:50 +01:00
Anthony LC	15389156d3	fixup! 🔧(ngnix) adapt nginx development	2025-02-20 11:20:50 +01:00
Anthony LC	168904728b	for-testing Firefox with websocket Other without	2025-02-20 11:20:50 +01:00
Anthony LC	3ca07e0f4c	🔧(helm) adapt helm nginx We adapt the nginx configuration to works with http requests and on the collaboration routes. Requests are light but quite network intensive, so we add a cache system above "collaboration-auth". It means the backend will be called only once every 30 seconds after a 200 response.	2025-02-20 11:20:50 +01:00
Anthony LC	6098fe1e14	🔧(ngnix) adapt nginx development We adapt the nginx configuration to works with http requests and on the collaboration routes. Requests are light but quite network intensive, so we add a cache system above "collaboration-auth". It means the backend will be called only once every 30 seconds after a 200 response.	2025-02-20 11:20:50 +01:00
Anthony LC	a2f1e32f21	✨(frontend) create class CollaborationProvider Create the CollaborationProvider class. This class is inherited from HocuspocusProvider class. This class integrate a fallback mechanism to handle the case where the user cannot connect with websockets. It will use post request to send the data to the collaboration server. It will use an EventSource to receive the data from the collaboration server.	2025-02-20 11:20:50 +01:00
Anthony LC	f27e968c15	🚚(frontend) move toBase64 We will need toBase64 in different features, better to move it to "doc-management".	2025-02-20 11:20:49 +01:00
Anthony LC	971b7e099d	✨(y-provider) collaboration polling We can now interact with the collaboration server using http requests. It will be used as a fallback when the websocket is not working. 2 kind of requests: - to send messages to the server we use POST requests - to get messages from the server we use a GET request using SSE (Server Sent Events)	2025-02-20 11:20:49 +01:00
Anthony LC	6d0ccb15ea	🔧(y-provider) add missing Sentry environment The environment was missing in the Sentry configuration. This commit adds the environment to the Sentry configuration.	2025-02-20 11:20:49 +01:00
				`@@ -0,0 +1 @@`
				`proxy_cache_path /tmp/auth_cache levels=1:2 keys_zone=auth_cache:10m inactive=60s max_size=100m;`