2 files changed, 28 insertions, 0 deletions
diff --git a/gui/src/main/daemon-rpc.ts b/gui/src/main/daemon-rpc.ts
index 02b9deceec..5db6f621c2 100644
--- a/gui/src/main/daemon-rpc.ts
+++ b/gui/src/main/daemon-rpc.ts
@@ -12,6 +12,8 @@ import {
   KeygenEvent,
   RelaySettingsUpdate,
   TunnelState,
+  VoucherErrorCode,
+  VoucherResponse,
 } from '../shared/daemon-rpc-types';
 import { CommunicationError, InvalidAccountError, NoDaemonError } from './errors';
 import JsonRpcClient, {
@@ -227,6 +229,10 @@ const accountDataSchema = partialObject({
   expiry: string,
 });
 
+const voucherResponseSchema = partialObject({
+  new_expiry: string,
+});
+
 const tunnelStateSchema = oneOf(
   object({
     state: enumeration('disconnecting'),
@@ -443,6 +449,25 @@ export class DaemonRpc {
     }
   }
 
+  public async submitVoucher(voucherCode: string): Promise<VoucherResponse> {
+    try {
+      const response = await this.transport.send('submit_voucher', voucherCode);
+      const new_expiry = validate(voucherResponseSchema, response).new_expiry;
+      return { type: 'success', new_expiry };
+    } catch (error) {
+      if (error instanceof JsonRpcRemoteError) {
+        switch (error.code) {
+          case VoucherErrorCode.Invalid:
+            return { type: 'invalid' };
+          case VoucherErrorCode.AlreadyUsed:
+            return { type: 'already_used' };
+        }
+      }
+    }
+
+    return { type: 'error' };
+  }
+
   public async getRelayLocations(): Promise<IRelayList> {
     const response = await this.transport.send('get_relay_locations');
     try {
diff --git a/gui/src/main/index.ts b/gui/src/main/index.ts
index 28956d8c88..2c3d71e628 100644
--- a/gui/src/main/index.ts
+++ b/gui/src/main/index.ts
@@ -995,6 +995,9 @@ class ApplicationMain {
     IpcMainEventChannel.account.handleLogin((token: AccountToken) => this.login(token));
     IpcMainEventChannel.account.handleLogout(() => this.logout());
     IpcMainEventChannel.account.handleWwwAuthToken(() => this.daemonRpc.getWwwAuthToken());
+    IpcMainEventChannel.account.handleSubmitVoucher((voucherCode: string) =>
+      this.daemonRpc.submitVoucher(voucherCode),
+    );
 
     IpcMainEventChannel.accountHistory.handleRemoveItem(async (token: AccountToken) => {
       await this.daemonRpc.removeAccountFromHistory(token);