Bugfix: Import electrum multisig wallet (with available seed) (#1543)

* Fixed bugs to import electrum multisig wallet
- 1. bug was a space in recv_descriptor
- 2. bug was that hw_type key does not exist in the electrum wallet dict if the seed in th electrum wallet

* black

* Capitalized device names

* Added warning in logger

* Changed warning to flash

Removed logger.warning

Added missing import

Co-authored-by: Kim Neunert <k9ert@gmx.de>

src/cryptoadvance/specter/util/wallet_importer.py

@@ -10,6 +10,8 @@
 from embit.descriptor.arguments import AllowedDerivation
 from embit.liquid.descriptor import LDescriptor
 from cryptoadvance.specter.key import Key
+from flask import flash
+from flask_babel import lazy_gettext as _
 
 logger = logging.getLogger(__name__)
 
@@ -266,7 +268,19 @@ def parse_wallet_data_import(cls, wallet_data):
                 xpubs += "[{}]{}/0/*,".format(
                     d["derivation"].replace("m", d["root_fingerprint"]), d["xpub"]
                 )
-                cosigners_types.append({"type": d["hw_type"], "label": d["label"]})
+                if "hw_type" in d:
+                    cosigners_types.append({"type": d["hw_type"], "label": d["label"]})
+                else:  # this can occcur if no hardware wallet was used, but the seed is available
+                    cosigners_types.append(
+                        {"type": "electrum", "label": f"Electrum Multisig {i}"}
+                    )
+                    if "seed" in d:
+                        flash(
+                            _(
+                                "The Electrum wallet contains a seed. The seed will not be imported."
+                            ),
+                            "warning",
+                        )
                 i += 1
             xpubs = xpubs.rstrip(",")
 
@@ -278,7 +292,7 @@ def parse_wallet_data_import(cls, wallet_data):
                 raise Exception('"xpub" not found in "x1/" in Electrum backup json')
 
             required_sigs = int(wallet_data.get("wallet_type").split("of")[0])
-            recv_descriptor = "{}(sortedmulti({}, {}))".format(
+            recv_descriptor = "{}(sortedmulti({},{}))".format(
                 wallet_type, required_sigs, xpubs
             )
             wallet_name = "Electrum {} of {}".format(required_sigs, i - 1)