make submarine swap server url configurable

electrum/simple_config.py

@@ -840,8 +840,15 @@ class SimpleConfig(Logger):
                     f"Either use config.cv.{name}.set() or assign to config.{name} instead.")
         return CVLookupHelper()
 
-    # config variables ----->
+    def get_swapserver_url(self):
+        if constants.net == constants.BitcoinMainnet:
+            return wallet.config.SWAPSERVER_URL_MAINNET
+        elif constants.net == constants.BitcoinTestnet:
+            return wallet.config.SWAPSERVER_URL_TESTNET
+        else:
+            return wallet.config.SWAPSERVER_URL_REGTEST
 
+    # config variables ----->
     NETWORK_AUTO_CONNECT = ConfigVar('auto_connect', default=True, type_=bool)
     NETWORK_ONESERVER = ConfigVar('oneserver', default=False, type_=bool)
     NETWORK_PROXY = ConfigVar('proxy', default=None)
@@ -951,7 +958,10 @@ class SimpleConfig(Logger):
 
     SSL_CERTFILE_PATH = ConfigVar('ssl_certfile', default='', type_=str)
     SSL_KEYFILE_PATH = ConfigVar('ssl_keyfile', default='', type_=str)
-
+    # submarine swap server
+    SWAPSERVER_URL_MAINNET = ConfigVar('swapserver_url_mainnet', default='https://swaps.electrum.org/api', type_=str)
+    SWAPSERVER_URL_TESTNET = ConfigVar('swapserver_url_testnet', default='https://swaps.electrum.org/testnet', type_=str)
+    SWAPSERVER_URL_REGTEST = ConfigVar('swapserver_url_regtest', default='https://localhost/api', type_=str)
     # connect to remote WT
     WATCHTOWER_CLIENT_ENABLED = ConfigVar('use_watchtower', default=False, type_=bool)
     WATCHTOWER_CLIENT_URL = ConfigVar('watchtower_url', default=None, type_=str)

electrum/submarine_swaps.py

@@ -32,9 +32,6 @@ if TYPE_CHECKING:
     from .simple_config import SimpleConfig
 
 
-API_URL_MAINNET = 'https://swaps.electrum.org/api'
-API_URL_TESTNET = 'https://swaps.electrum.org/testnet'
-API_URL_REGTEST = 'https://localhost/api'
 
 
 
@@ -159,12 +156,7 @@ class SwapManager(Logger):
             if swap.is_reverse and swap.prepay_hash is not None:
                 self.prepayments[swap.prepay_hash] = bytes.fromhex(k)
         # api url
-        if constants.net == constants.BitcoinMainnet:
-            self.api_url = API_URL_MAINNET
-        elif constants.net == constants.BitcoinTestnet:
-            self.api_url = API_URL_TESTNET
-        else:
-            self.api_url = API_URL_REGTEST
+        self.api_url = wallet.config.get_swapserver_url()
         # init default min & max
         self.init_min_max_values()