trustedcoin: longer timeout for server signing

fixes #5221

electrum/plugins/trustedcoin/qt.py

@@ -67,12 +67,12 @@ class HandlerTwoFactor(QObject, PrintError):
             return
         window = self.window.top_level_window()
         auth_code = self.plugin.auth_dialog(window)
-        try:
-            wallet.on_otp(tx, auth_code)
-        except:
-            on_failure(sys.exc_info())
-            return
-        on_success(tx)
+        WaitingDialog(parent=window,
+                      message=_('Waiting for TrustedCoin server to sign transaction...'),
+                      task=lambda: wallet.on_otp(tx, auth_code),
+                      on_success=lambda *args: on_success(tx),
+                      on_error=on_failure)
+
 
 class Plugin(TrustedCoinPlugin):
 

electrum/plugins/trustedcoin/trustedcoin.py

@@ -136,7 +136,7 @@ class TrustedCoinCosignerClient(PrintError):
         except:
             return await resp.text()
 
-    def send_request(self, method, relative_url, data=None):
+    def send_request(self, method, relative_url, data=None, *, timeout=None):
         network = Network.get_instance()
         if not network:
             raise ErrorConnectingServer('You are offline.')
@@ -148,9 +148,17 @@ class TrustedCoinCosignerClient(PrintError):
             headers['user-agent'] = self.user_agent
         try:
             if method == 'get':
-                response = Network.send_http_on_proxy(method, url, params=data, headers=headers, on_finish=self.handle_response)
+                response = Network.send_http_on_proxy(method, url,
+                                                      params=data,
+                                                      headers=headers,
+                                                      on_finish=self.handle_response,
+                                                      timeout=timeout)
             elif method == 'post':
-                response = Network.send_http_on_proxy(method, url, json=data, headers=headers, on_finish=self.handle_response)
+                response = Network.send_http_on_proxy(method, url,
+                                                      json=data,
+                                                      headers=headers,
+                                                      on_finish=self.handle_response,
+                                                      timeout=timeout)
             else:
                 assert False
         except TrustedCoinException:
@@ -219,7 +227,8 @@ class TrustedCoinCosignerClient(PrintError):
             'otp': otp,
             'transaction': transaction
         }
-        return self.send_request('post', 'cosigner/%s/sign' % quote(id), payload)
+        return self.send_request('post', 'cosigner/%s/sign' % quote(id), payload,
+                                 timeout=60)
 
     def transfer_credit(self, id, recipient, otp, signature_callback):
         """