Merge pull request #10871 from accumulator/hww_deprecation_bb01_archos

### electrum/hw_wallet/cmdline.py
@@ -67,6 +67,9 @@ def stop(self):
     def show_message(self, msg, on_cancel=None):
         print_stderr(msg)
 
+    def show_warning(self, msg, blocking=False):
+        print_stderr(msg)
+
     def show_error(self, msg, blocking=False):
         print_stderr(msg)
 

### electrum/hw_wallet/plugin.py
@@ -334,6 +334,9 @@ def yes_no_question(self, msg: str) -> bool:
     def show_message(self, msg: str, on_cancel=None) -> None:
         raise NotImplementedError()
 
+    def show_warning(self, msg: str, blocking: bool = False) -> None:
+        raise NotImplementedError()
+
     def show_error(self, msg: str, blocking: bool = False) -> None:
         raise NotImplementedError()
 

### electrum/hw_wallet/qt.py
@@ -62,6 +62,7 @@ class QtHandlerBase(HardwareHandlerBase, QObject, Logger):
 
     passphrase_signal = pyqtSignal(object, object)
     message_signal = pyqtSignal(object, object)
+    warning_signal = pyqtSignal(object, object)
     error_signal = pyqtSignal(object, object)
     word_signal = pyqtSignal(object)
     clear_signal = pyqtSignal()
@@ -75,6 +76,7 @@ def __init__(self, win: Union['ElectrumWindow', 'QENewWalletWizard'], device: st
         assert win.gui_thread == threading.current_thread(), 'must be called from GUI thread'
         self.clear_signal.connect(self.clear_dialog)
         self.error_signal.connect(self.error_dialog)
+        self.warning_signal.connect(self.warning_dialog)
         self.message_signal.connect(self.message_dialog)
         self.passphrase_signal.connect(self.passphrase_dialog)
         self.word_signal.connect(self.word_dialog)
@@ -116,6 +118,12 @@ def yes_no_question(self, msg):
     def show_message(self, msg, on_cancel=None):
         self.message_signal.emit(msg, on_cancel)
 
+    def show_warning(self, msg, blocking=False):
+        self.done.clear()
+        self.warning_signal.emit(msg, blocking)
+        if blocking:
+            self.done.wait()
+
     def show_error(self, msg, blocking=False):
         self.done.clear()
         self.error_signal.emit(msg, blocking)
@@ -201,6 +209,11 @@ def message_dialog(self, msg, on_cancel=None):
             vbox.addLayout(Buttons(CancelButton(dialog)))
         dialog.show()
 
+    def warning_dialog(self, msg, blocking):
+        self.win.show_warning(msg, parent=self.top_level_window())
+        if blocking:
+            self.done.set()
+
     def error_dialog(self, msg, blocking):
         self.win.show_error(msg, parent=self.top_level_window())
         if blocking:

### electrum/plugins/digitalbitbox/digitalbitbox.py
@@ -74,7 +74,7 @@ def derive_keys(x):
 
 ENCRYPTION_PRIVKEY_KEY = 'encryptionprivkey'
 CHANNEL_ID_KEY = 'comserverchannelid'
-
+DEPRECATION_WARNING_SHOWN = False
 
 class DigitalBitbox_Client(HardwareClientBase):
     def __init__(self, plugin, hidDevice):
@@ -126,18 +126,30 @@ def get_xpub(self, bip32_path, xtype):
             raise UserFacingException(_('This device does not reveal xpubs corresponding to non-hardened paths'))
 
         reply = self._get_xpub(bip32_path)
-        if reply:
-            xpub = reply['xpub']
-            # Change type of xpub to the requested type. The firmware
-            # only ever returns the mainnet standard type, but it is agnostic
-            # to the type when signing.
-            if xtype != 'standard' or constants.net.TESTNET:
-                node = BIP32Node.from_xkey(xpub, net=constants.BitcoinMainnet)
-                xpub = node._replace(xtype=xtype).to_xpub()
-            return xpub
-        else:
+        if not reply:
             raise Exception('no reply')
 
+        xpub = reply['xpub']
+        # Change type of xpub to the requested type. The firmware
+        # only ever returns the mainnet standard type, but it is agnostic
+        # to the type when signing.
+        if xtype != 'standard' or constants.net.TESTNET:
+            node = BIP32Node.from_xkey(xpub, net=constants.BitcoinMainnet)
+            xpub = node._replace(xtype=xtype).to_xpub()
+
+        deprecation_warning = (
+            "DigitalBitbox (BitBox01) is being deprecated.\n\nIt is no longer supported by the manufacturer.\n"
+            "Future versions of Electrum will no longer be compatible with it.\n\n"
+            "You should move your coins and migrate to a modern hardware device.")
+        _logger.warning(deprecation_warning.replace("\n", " "))
+
+        global DEPRECATION_WARNING_SHOWN
+        if self.handler and not DEPRECATION_WARNING_SHOWN:
+            DEPRECATION_WARNING_SHOWN = True
+            self.handler.show_warning(deprecation_warning, blocking=True)
+
+        return xpub
+
     def get_soft_device_id(self):
         return None
 

### electrum/plugins/safe_t/clientbase.py
@@ -13,6 +13,9 @@
 from electrum.hw_wallet.plugin import HardwareClientBase, HardwareHandlerBase
 
 
+DEPRECATION_WARNING_SHOWN = False
+
+
 class GuiMixin(object):
     # Requires: self.proto, self.device
     handler: Optional[HardwareHandlerBase]
@@ -175,6 +178,18 @@ def get_xpub(self, bip32_path, xtype):
         address_n = self.expand_path(bip32_path)
         creating = False
         node = self.get_public_node(address_n, creating).node
+
+        deprecation_warning = (
+            "Archos Safe-T mini is being deprecated.\n\nIt is no longer supported by the manufacturer.\n"
+            "Future versions of Electrum will no longer be compatible with it.\n\n"
+            "You should move your coins and migrate to a modern hardware device.")
+        self.logger.warning(deprecation_warning.replace("\n", " "))
+
+        global DEPRECATION_WARNING_SHOWN
+        if self.handler and not DEPRECATION_WARNING_SHOWN:
+            DEPRECATION_WARNING_SHOWN = True
+            self.handler.show_warning(deprecation_warning, blocking=True)
+
         return BIP32Node(xtype=xtype,
                          eckey=ecc.ECPubkey(node.public_key),
                          chaincode=node.chain_code,