show address on trezor for multisig (#3823)

* show address on trezor for multisig

* Show menu option properly.

* remove useless line

plugins/trezor/plugin.py

@@ -243,23 +243,39 @@ class TrezorCompatiblePlugin(HW_PluginBase):
         raw = bh2u(signed_tx)
         tx.update_signatures(raw)
 
-    def show_address(self, wallet, address):
-        client = self.get_client(wallet.keystore)
+    def show_address(self, wallet, keystore, address):
+        client = self.get_client(keystore)
         if not client.atleast_version(1, 3):
-            wallet.keystore.handler.show_error(_("Your device firmware is too old"))
+            keystore.handler.show_error(_("Your device firmware is too old"))
             return
         change, index = wallet.get_address_index(address)
-        derivation = wallet.keystore.derivation
+        derivation = keystore.derivation
         address_path = "%s/%d/%d"%(derivation, change, index)
         address_n = client.expand_path(address_path)
-        script_gen = wallet.keystore.get_script_gen()
-        if script_gen == SCRIPT_GEN_NATIVE_SEGWIT:
-            script_type = self.types.InputScriptType.SPENDWITNESS
-        elif script_gen == SCRIPT_GEN_P2SH_SEGWIT:
-            script_type = self.types.InputScriptType.SPENDP2SHWITNESS
+        xpubs = wallet.get_master_public_keys()
+        if len(xpubs) == 1:
+            script_gen = keystore.get_script_gen()
+            if script_gen == SCRIPT_GEN_NATIVE_SEGWIT:
+                script_type = self.types.InputScriptType.SPENDWITNESS
+            elif script_gen == SCRIPT_GEN_P2SH_SEGWIT:
+                script_type = self.types.InputScriptType.SPENDP2SHWITNESS
+            else:
+                script_type = self.types.InputScriptType.SPENDADDRESS
+            client.get_address(self.get_coin_name(), address_n, True, script_type=script_type)
         else:
-            script_type = self.types.InputScriptType.SPENDADDRESS
-        client.get_address(self.get_coin_name(), address_n, True, script_type=script_type)
+            def f(xpub):
+                node = self.ckd_public.deserialize(xpub)
+                return self.types.HDNodePathType(node=node, address_n=[change, index])
+            pubkeys = wallet.get_public_keys(address)
+            # sort xpubs using the order of pubkeys
+            sorted_pubkeys, sorted_xpubs = zip(*sorted(zip(pubkeys, xpubs)))
+            pubkeys = list(map(f, sorted_xpubs))
+            multisig = self.types.MultisigRedeemScriptType(
+               pubkeys=pubkeys,
+               signatures=[b''] * wallet.n,
+               m=wallet.m,
+            )
+            client.get_address(self.get_coin_name(), address_n, True, multisig=multisig)
 
     def tx_inputs(self, tx, for_sig=False, script_gen=SCRIPT_GEN_LEGACY):
         inputs = []

plugins/trezor/qt_generic.py

@@ -188,13 +188,14 @@ class QtPlugin(QtPluginBase):
 
     @hook
     def receive_menu(self, menu, addrs, wallet):
-        if type(wallet) is not Standard_Wallet:
+        if len(addrs) != 1:
             return
-        keystore = wallet.get_keystore()
-        if type(keystore) == self.keystore_class and len(addrs) == 1:
-            def show_address():
-                keystore.thread.add(partial(self.show_address, wallet, addrs[0]))
-            menu.addAction(_("Show on %s") % self.device, show_address)
+        for keystore in wallet.get_keystores():
+            if type(keystore) == self.keystore_class:
+                def show_address():
+                    keystore.thread.add(partial(self.show_address, wallet, keystore, addrs[0]))
+                menu.addAction(_("Show on %s") % self.device, show_address)
+                break
 
     def show_settings_dialog(self, window, keystore):
         device_id = self.choose_device(window, keystore)