Ensure all displayed addresses are imported

Fixes #1143 (and possibly others). Before this commit,
(index plus gap limit) addresses are imported on sync,
and addresses used by maker/taker in coinjoin are imported,
but when a deposit occurred, bumping the index, further
addresses were not imported. The effect was that it was
possible, if doing a series of deposits to multiple
external addresses in a Qt session, to end up depositing
to an address that was not yet imported. And this results
in the user needing to rescan for Core+JM to recognize the
coins.
After this commit, we ensure all 'gap limit forwards'
addresses, which are displayed as potential deposit addresses
in Joinmarket-Qt, are imported before the display.

jmclient/jmclient/wallet_service.py

@@ -887,11 +887,13 @@ class WalletService(Service):
                                                    include_disabled=include_disabled,
                                                    maxheight=maxheight)
 
-    def get_internal_addr(self, mixdepth):
+    def import_addr(self, addr):
         if self.bci is not None and hasattr(self.bci, 'import_addresses'):
-            addr = self.wallet.get_internal_addr(mixdepth)
-            self.bci.import_addresses([addr],
-                                      self.wallet.get_wallet_name())
+            self.bci.import_addresses([addr], self.wallet.get_wallet_name())
+
+    def get_internal_addr(self, mixdepth):
+        addr = self.wallet.get_internal_addr(mixdepth)
+        self.import_addr(addr)
         return addr
 
     def collect_addresses_init(self):
@@ -944,10 +946,8 @@ class WalletService(Service):
         return addresses
 
     def get_external_addr(self, mixdepth):
-        if self.bci is not None and hasattr(self.bci, 'import_addresses'):
-            addr = self.wallet.get_external_addr(mixdepth)
-            self.bci.import_addresses([addr],
-                                      self.wallet.get_wallet_name())
+        addr = self.wallet.get_external_addr(mixdepth)
+        self.import_addr(addr)
         return addr
 
     def __getattr__(self, attr):

jmclient/jmclient/wallet_utils.py

@@ -494,9 +494,12 @@ def wallet_display(wallet_service, showprivkey, displayall=False,
                 xpub_key = ""
 
             unused_index = wallet_service.get_next_unused_index(m, address_type)
+            gap_addrs = []
             for k in range(unused_index + wallet_service.gap_limit):
                 path = wallet_service.get_path(m, address_type, k)
                 addr = wallet_service.get_address_from_path(path)
+                if k >= unused_index:
+                    gap_addrs.append(addr)
                 label = wallet_service.get_address_label(addr)
                 balance, status = get_addr_status(
                     path, utxos[m], k >= unused_index, address_type)
@@ -509,6 +512,15 @@ def wallet_display(wallet_service, showprivkey, displayall=False,
                     entrylist.append(WalletViewEntry(
                         wallet_service.get_path_repr(path), m, address_type, k, addr,
                         [balance, balance], priv=privkey, status=status, label=label))
+            # ensure that we never display un-imported addresses (this will generally duplicate
+            # the import of each new address gap limit times, but one importmulti call
+            # per mixdepth is cheap enough.
+            # This only applies to the external branch, because it only applies to addresses
+            # displayed for user deposit.
+            # It also does not apply to fidelity bond addresses which are created manually.
+            if address_type == BaseWallet.ADDRESS_TYPE_EXTERNAL:
+                wallet_service.bci.import_addresses(gap_addrs,
+                                                    wallet_service.get_wallet_name())
             wallet_service.set_next_index(m, address_type, unused_index)
             path = wallet_service.get_path_repr(wallet_service.get_path(m, address_type))
             branchlist.append(WalletViewBranch(path, m, address_type, entrylist,

test/ygrunner.py

@@ -217,7 +217,7 @@ def get_addr_and_fund(yg):
         return
     if yg.wallet_service.timelock_funded:
         return
-    addr = wallet_gettimelockaddress(yg.wallet_service.wallet, "2021-11")
+    addr = wallet_gettimelockaddress(yg.wallet_service.wallet, "2023-11")
     print("Got timelockaddress: {}".format(addr))
 
     # pay into it; amount is randomized for now.