From b4604f3078b0b7da5a9199e3974592d4d741bc35 Mon Sep 17 00:00:00 2001
From: loli10K <ezomori.nozomu@gmail.com>
Date: Thu, 25 Apr 2024 10:52:08 +0200
Subject: [PATCH] feat(whiteboard) add builtin whiteboard integration
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Closes: https://github.com/jitsi/docker-jitsi-meet/pull/1480

Co-authored-by: Tugrul Dogan <tugrul.ufuk@gmail.com>
Co-authored-by: Saúl Ibarra Corretgé <saghul@jitsi.org>
---
 docker-compose.yml                     |  2 +-
 env.example                            | 13 ++++++++++++-
 web/rootfs/defaults/meet.conf          | 15 +++++++++++++++
 web/rootfs/defaults/settings-config.js |  9 ++++++---
 whiteboard.yml                         | 12 ++++++++++++
 5 files changed, 46 insertions(+), 5 deletions(-)
 create mode 100644 whiteboard.yml

diff --git a/docker-compose.yml b/docker-compose.yml
index 08c7d39..06ba51b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -171,8 +171,8 @@ services:
             - XMPP_MUC_DOMAIN
             - XMPP_RECORDER_DOMAIN
             - XMPP_PORT
-            - WHITEBOARD_ENABLED
             - WHITEBOARD_COLLAB_SERVER_PUBLIC_URL
+            - WHITEBOARD_COLLAB_SERVER_URL_BASE
         networks:
             meet.jitsi:
         depends_on:
diff --git a/env.example b/env.example
index 485649c..dd8c50a 100644
--- a/env.example
+++ b/env.example
@@ -73,13 +73,24 @@ TZ=UTC
 # Etherpad integration (for document sharing)
 #
 
-# Set etherpad-lite URL in docker local network (uncomment to enable)
+# Set the etherpad-lite URL in the docker local network (uncomment to enable)
 #ETHERPAD_URL_BASE=http://etherpad.meet.jitsi:9001
 
 # Set etherpad-lite public URL, including /p/ pad path fragment (uncomment to enable)
 #ETHERPAD_PUBLIC_URL=https://etherpad.my.domain/p/
 
 
+#
+# Whiteboard integration
+#
+
+# Set the excalidraw-backend URL in the docker local network (uncomment to enable)
+#WHITEBOARD_COLLAB_SERVER_URL_BASE=http://whiteboard.meet.jitsi
+
+# Set the excalidraw-backend public URL (uncomment to enable)
+#WHITEBOARD_COLLAB_SERVER_PUBLIC_URL=https://whiteboard.meet.my.domain
+
+
 #
 # Basic Jigasi configuration options (needed for SIP gateway support)
 #
diff --git a/web/rootfs/defaults/meet.conf b/web/rootfs/defaults/meet.conf
index cbd9a14..8cca756 100644
--- a/web/rootfs/defaults/meet.conf
+++ b/web/rootfs/defaults/meet.conf
@@ -134,6 +134,21 @@ location ^~ /etherpad/ {
 }
 {{ end }}
 
+{{ if .Env.WHITEBOARD_COLLAB_SERVER_URL_BASE }}
+# whiteboard (excalidraw-backend)
+location = /socket.io/ {
+    proxy_buffering off;
+    proxy_cache_bypass $http_upgrade;
+
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "upgrade";
+    proxy_set_header X-Forwarded-For $remote_addr;
+
+    proxy_pass {{ .Env.WHITEBOARD_COLLAB_SERVER_URL_BASE }}/socket.io/?$args;
+}
+{{ end }}
+
 location ~ ^/([^/?&:'"]+)$ {
     try_files $uri @root_path;
 }
diff --git a/web/rootfs/defaults/settings-config.js b/web/rootfs/defaults/settings-config.js
index 4a5fbb1..0be9c80 100644
--- a/web/rootfs/defaults/settings-config.js
+++ b/web/rootfs/defaults/settings-config.js
@@ -62,8 +62,7 @@
 {{ $ENABLE_LOCAL_RECORDING_SELF_START := .Env.ENABLE_LOCAL_RECORDING_SELF_START | default "false" | toBool -}}
 {{ $DISABLE_PROFILE := .Env.DISABLE_PROFILE | default "false" | toBool -}}
 {{ $ROOM_PASSWORD_DIGITS := .Env.ROOM_PASSWORD_DIGITS | default "false" -}}
-{{ $WHITEBOARD_COLLAB_SERVER_PUBLIC_URL := .Env.WHITEBOARD_COLLAB_SERVER_PUBLIC_URL | default "" -}}
-{{ $WHITEBOARD_ENABLED := .Env.WHITEBOARD_ENABLED | default "false" | toBool -}}
+{{ $WHITEBOARD_ENABLED := or (.Env.WHITEBOARD_COLLAB_SERVER_PUBLIC_URL | default "" | toBool) (.Env.WHITEBOARD_COLLAB_SERVER_URL_BASE | default "" | toBool) }}
 {{ $TESTING_AV1_SUPPORT := .Env.TESTING_AV1_SUPPORT | default "false" | toBool -}}
 
 // Video configuration.
@@ -554,7 +553,11 @@ config.e2eping.maxMessagePerSecond = {{ .Env.E2EPING_MAX_MESSAGE_PER_SECOND }};
 // Settings for the Excalidraw whiteboard integration.
 config.whiteboard = {
     enabled: {{ $WHITEBOARD_ENABLED }},
-    collabServerBaseUrl: '{{ $WHITEBOARD_COLLAB_SERVER_PUBLIC_URL }}'
+{{ if .Env.WHITEBOARD_COLLAB_SERVER_PUBLIC_URL -}}
+    collabServerBaseUrl: '{{ .Env.WHITEBOARD_COLLAB_SERVER_PUBLIC_URL }}';
+{{ else if .Env.WHITEBOARD_COLLAB_SERVER_URL_BASE -}}
+    collabServerBaseUrl: '{{ $PUBLIC_URL }}'
+{{ end -}}
 };
 
 // Testing
diff --git a/whiteboard.yml b/whiteboard.yml
new file mode 100644
index 0000000..9984daf
--- /dev/null
+++ b/whiteboard.yml
@@ -0,0 +1,12 @@
+version: '3.5'
+
+services:
+    whiteboard:
+        image: jitsi/excalidraw-backend:21
+        restart: ${RESTART_POLICY:-unless-stopped}
+        depends_on:
+            - web
+        networks:
+            meet.jitsi:
+              aliases:
+                  - whiteboard.meet.jitsi