,

app/__init__.py

@@ -3,6 +3,7 @@ from config import Config
 from flask_sqlalchemy import SQLAlchemy
 from flask_migrate import Migrate
 from flask_login import LoginManager
+from app.network_utils import cleanup_network
 
 app = Flask(__name__)
 app.config.from_object(Config)
@@ -11,4 +12,6 @@ migrate = Migrate(app, db)
 login = LoginManager(app)
 login.login_view = "login"
 
+cleanup_network()
+
 from app import routes2, models

app/network_utils.py

@@ -116,8 +116,17 @@ def scan_networks():
 
     current = output.partition("ESSID:")[2].strip().strip('"')
 
-    output = run_subprocess("sudo iwlist {} scan".format(ClientInterface))
+    worked = False
-
+    while not worked:
+        try:
+            output = run_subprocess("sudo iwlist {} scan".format(ClientInterface))
+            worked = True
+        except:
+            try:
+                output = run_subprocess("sudo ifup {}".format(ClientInterface))
+                time.sleep(1)
+            except:
+                pass
     scan = parse_iwlist(output, current)
 
     return scan
@@ -176,6 +185,31 @@ def disconnect_network():
     return True
 
 
+def cleanup_network():
+    run_subprocess_interface("sudo /usr/sbin/ifdown {}")
+
+    with open("/etc/wpa_supplicant/wpa_supplicant.conf", "wt") as f:
+        f.write(wpafile_none)
+
+    run_subprocess("sudo /usr/bin/systemctl stop wpa_supplicant")
+
+    with open("/etc/network/interfaces", "r") as sources:
+        lines = sources.readlines()
+    with open("/etc/network/interfaces", "w") as sources:
+        for line in lines:
+            sources.write(
+                re.sub(r"^iface {} inet dhcp".format(ClientInterface), "iface {} inet manual".format(ClientInterface), line)
+            )
+
+    try:
+        run_subprocess("sudo /usr/bin/systemctl start wpa_supplicant")
+        run_subprocess_interface("sudo /usr/sbin/ifup {}")
+    except:
+        return False
+
+    return True
+
+
 def vpn_connected():
     if run_subprocess("nordvpn status").find("Disconnected") != -1:
         return False