linked-devices-limit

_locales/en/messages.json

@@ -862,6 +862,12 @@
   "devicePairingReceived": {
     "message": "Device Linking Received"
   },
+  "devicePairingRequestReceivedLimitTitle": {
+    "message": "Device linking limit reached."
+  },
+  "devicePairingRequestReceivedLimitDescription": {
+    "message": "To change your linked devices, please unlink a device first."
+  },
   "devicePairingRequestReceivedNoListenerTitle": {
     "message": "Device linking request received."
   },
@@ -2374,7 +2380,7 @@
     "message": "Verify Password"
   },
   "devicePairingHeader": {
-    "message": "Open Session on your other device and navigate to the Linked Devices section in your user account screen. Select Link a Device to prepare your other device for pairing, then enter your Session ID below to link this device to your Session ID."
+    "message": "1. Open Session on your other device. <br/>2. Navigate to the Linked Devices section in your user account screen.<br/>3. Select <strong>'Link a Device'</strong> to prepare your other device for pairing<br/>4. Enter your Session ID below to link this device to your Session ID."
   },
   "enterSessionIDHere": {
     "message": "Enter other device’s Session ID here"

js/background.js

@@ -1371,12 +1371,25 @@
     });
 
     Whisper.events.on('devicePairingRequestReceivedNoListener', async () => {
+      // If linking limit has been reached, let master know.
+      const ourKey = textsecure.storage.user.getNumber();
+      const ourPubKey =  window.libsession.Types.PubKey.cast(ourKey);
+      const authorisations = await window.libsession.Protocols.MultiDeviceProtocol.fetchPairingAuthorisations(ourPubKey);
+
+      const title = authorisations.length
+        ? window.i18n('devicePairingRequestReceivedLimitTitle')
+        : window.i18n('devicePairingRequestReceivedNoListenerTitle');
+
+      const description = authorisations.length
+        ? window.i18n('devicePairingRequestReceivedLimitDescription', window.CONSTANTS.MAX_LINKED_DEVICES)
+        : window.i18n('devicePairingRequestReceivedNoListenerDescription');
+
+      const type = authorisations.length ? 'info' : 'warning';
+
       window.pushToast({
-        title: window.i18n('devicePairingRequestReceivedNoListenerTitle'),
-        description: window.i18n(
-          'devicePairingRequestReceivedNoListenerDescription'
-        ),
-        type: 'info',
+        title,
+        description,
+        type,
         id: 'pairingRequestNoListener',
         shouldFade: false,
       });

preload.js

@@ -82,6 +82,7 @@ window.CONSTANTS = new (function() {
   this.MAX_USERNAME_LENGTH = 20;
   this.MAX_GROUP_NAME_LENGTH = 64;
   this.DEFAULT_PUBLIC_CHAT_URL = appConfig.get('defaultPublicChatServer');
+  this.MAX_LINKED_DEVICES = 1;
   this.MAX_CONNECTION_DURATION = 5000;
   this.MAX_MESSAGE_BODY_LENGTH = 64 * 1024;
   // Limited due to the proof-of-work requirement

ts/components/session/RegistrationTabs.tsx

@@ -418,7 +418,7 @@ export class RegistrationTabs extends React.Component<{}, State> {
       return (
         <div className="registration-content-centered">
           <div className="session-signin-device-pairing-header">
-            {window.i18n('devicePairingHeader')}
+            <SessionHtmlRenderer html={window.i18n('devicePairingHeader')} />
           </div>
           {this.renderEnterSessionID(true)}
           <SessionSpinner loading={this.state.loading} />