From ed6daffa0c2aaa1b35f18ba314a0df5d305e8a9c Mon Sep 17 00:00:00 2001
From: Claudio Costa <cstcld91@gmail.com>
Date: Thu, 30 Jun 2022 10:06:21 +0200
Subject: [PATCH] [MM-45001] Add support for generating short-lived TURN
 credentials (#6404)

* Generate TURN credentials if needed

* Reduce calls to getState
---
 app/products/calls/client/rest.ts         | 7 +++++++
 app/products/calls/store/actions/calls.ts | 8 +++++++-
 app/products/calls/store/types/calls.ts   | 4 +++-
 types/modules/react-native-webrtc.d.ts    | 2 +-
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/app/products/calls/client/rest.ts b/app/products/calls/client/rest.ts
index 84742b62e..d4120d2dc 100644
--- a/app/products/calls/client/rest.ts
+++ b/app/products/calls/client/rest.ts
@@ -59,6 +59,13 @@ const ClientCalls = (superclass: any) => class extends superclass {
             {method: 'post'},
         );
     };
+
+    genTURNCredentials = async () => {
+        return this.doFetch(
+            `${this.getCallsRoute()}/turn-credentials`,
+            {method: 'get'},
+        );
+    };
 };
 
 export default ClientCalls;
diff --git a/app/products/calls/store/actions/calls.ts b/app/products/calls/store/actions/calls.ts
index 076bff2a2..850133a5a 100644
--- a/app/products/calls/store/actions/calls.ts
+++ b/app/products/calls/store/actions/calls.ts
@@ -202,7 +202,13 @@ export function joinCall(channelId: string, intl: typeof intlShape): ActionFunc
         dispatch(setSpeakerphoneOn(false));
 
         try {
-            ws = await newClient(channelId, getICEServersConfigs(getState()), () => {
+            const state = getState();
+            const iceConfigs = [...getICEServersConfigs(state)];
+            if (getConfig(state).NeedsTURNCredentials) {
+                iceConfigs.push(...await Client4.genTURNCredentials());
+            }
+
+            ws = await newClient(channelId, iceConfigs, () => {
                 dispatch(setSpeakerphoneOn(false));
                 dispatch({type: CallsTypes.RECEIVED_MYSELF_LEFT_CALL});
             }, setScreenShareURL);
diff --git a/app/products/calls/store/types/calls.ts b/app/products/calls/store/types/calls.ts
index e56f9bc93..cabdb9b83 100644
--- a/app/products/calls/store/types/calls.ts
+++ b/app/products/calls/store/types/calls.ts
@@ -66,6 +66,7 @@ export type ServerConfig = {
     AllowEnableCalls: boolean;
     DefaultEnabled: boolean;
     MaxCallParticipants: number;
+    NeedsTURNCredentials: boolean;
     sku_short_name: string;
     last_retrieved_at: number;
 }
@@ -76,8 +77,9 @@ export const DefaultServerConfig = {
     AllowEnableCalls: false,
     DefaultEnabled: false,
     MaxCallParticipants: 0,
+    NeedsTURNCredentials: false,
     sku_short_name: '',
     last_retrieved_at: 0,
 } as ServerConfig;
 
-export type ICEServersConfigs = ConfigurationParamWithUrls[] | ConfigurationParamWithUrl[];
+export type ICEServersConfigs = Array<ConfigurationParamWithUrls | ConfigurationParamWithUrl>;
diff --git a/types/modules/react-native-webrtc.d.ts b/types/modules/react-native-webrtc.d.ts
index 1e0f68827..0369d34ec 100644
--- a/types/modules/react-native-webrtc.d.ts
+++ b/types/modules/react-native-webrtc.d.ts
@@ -168,7 +168,7 @@ declare module 'react-native-webrtc' {
     }
 
     export interface RTCPeerConnectionConfiguration {
-        iceServers: ConfigurationParamWithUrls[] | ConfigurationParamWithUrl[];
+        iceServers: Array<ConfigurationParamWithUrls | ConfigurationParamWithUrl>;
         iceTransportPolicy?: 'all' | 'relay' | 'nohost' | 'none' | undefined;
         bundlePolicy?: 'balanced' | 'max-compat' | 'max-bundle' | undefined;
         rtcpMuxPolicy?: 'negotiate' | 'require' | undefined;