Introduced a Global State Management system, with a repo cache and notifications to the UI.

core/controllers/ProfileController.py

@@ -5,6 +5,7 @@ from core.errors.logger import logger
 
 from core.Errors import InvalidSubscriptionError, MissingSubscriptionError
 from core.models.BaseProfile import BaseProfile as Profile
+from core.models.BaseProfile import ProfileType
 from core.models.Subscription import Subscription
 from core.models.session.SessionProfile import SessionProfile
 from core.models.system.SystemProfile import SystemProfile
@@ -69,6 +70,17 @@ class ProfileController:
         ProfileController._repo.invalidate(profile_id=profile_id)
 
 
+    @staticmethod
+    def what_type_is_profile(profile_id: int) -> ProfileType:
+        all_data = ProfileController._repo.get_all()
+        given_profile = all_data[profile_id]
+        return given_profile.type
+
+        # print(f"all_data[{profile_id}] is {all_data[profile_id]}")
+         
+
+
+
     # @staticmethod
     # def attach_subscription(profile: Union[SessionProfile, SystemProfile], subscription: Subscription):
 

core/controllers/SessionStateController.py

@@ -1,6 +1,7 @@
 from core.models.session.SessionState import SessionState
 from core.controllers.ProfileController import ProfileController
 from core.infrastructure.global_state import ProfileStateRepository
+from core.observers.Notifications import Notifications, EventType
 
 
 class SessionStateController:
@@ -34,11 +35,25 @@ class SessionStateController:
 
     @staticmethod
     def update_or_create(session_state):
+        # save to model:
         session_state.save()
+
+        # get profile id:
+        profile_id = session_state.id
+
         # Ensure repo knows this session exists
-        ProfileStateRepository().sync_session_added(session_state.id)
+        ProfileStateRepository().sync_session_added(profile_id)
+
+        # notify UI:
+        Notifications.emit(EventType.SESSION_PROFILE_ENABLE, profile_id)
 
     @staticmethod
     def remove(profile_id: int):
+        # save to model:
         SessionState.dissolve(profile_id)
+
+        # cache:
         ProfileStateRepository().sync_session_removed(profile_id)
+
+        # notify UI:
+        Notifications.emit(EventType.SESSION_PROFILE_DISABLE, profile_id)

core/controllers/SystemStateController.py

@@ -2,7 +2,8 @@ from core.models.system.SystemState import SystemState
 from core.models.enum_models import ProtocolChoice
 # from core.controllers.ProfileController import ProfileController
 from core.infrastructure.global_state import ProfileStateRepository
-
+from core.observers.Notifications import Notifications, EventType
+from core.errors.logger import logger
 
 class SystemStateController:
     @staticmethod
@@ -15,23 +16,64 @@ class SystemStateController:
 
     @staticmethod
     def create(profile_id: int, firewalled: bool, dns_set: bool, protocol: ProtocolChoice, process_id: int = None) -> SystemState:
+
+        # model on disk
         current_state = SystemState(profile_id, firewalled, dns_set, protocol, process_id)
         current_state.save()
         
-        # Sync to Repo
+        # cache (Sync to Repo)
         ProfileStateRepository().sync_system_state(current_state)
+
         return current_state
 
     @staticmethod
     def update_or_create(system_state):
+        """Update the model & cache for a systemwide connection"""
+
+        # model
         system_state.save()
-        # Sync to Repo
+
+        # cache (Sync to Repo)
         ProfileStateRepository().sync_system_state(system_state)
 
+        # notify is done separately because this function can be used to modify state in the event of firewall failure.
+
     @staticmethod
     def dissolve():
-        res = SystemState.dissolve()
-        # Sync to Repo: clear system ID
-        ProfileStateRepository().global_state.systemwide_profile_id = None
-        return res
+        # get singleton:
+        state_repo = ProfileStateRepository()
 
+        # extract current active id:
+        profile_id = state_repo.global_state.systemwide_profile_id
+
+        # model wipes data on disk:
+        SystemState.dissolve()
+
+        # Wipe the Repo's Cache:
+        state_repo.turn_off_system_connection()
+
+        # notify UI with that past id:
+        Notifications.emit(EventType.SYSTEM_DISABLE, profile_id)
+
+
+# old version:
+# ProfileStateRepository().global_state.systemwide_profile_id = None
+
+
+# @staticmethod
+# def notify_on():
+#     """Notify the notifications that systemwide state shows on"""
+#     # get singleton:
+#     state_repo = ProfileStateRepository()
+
+#     # extract current data:
+#     profile_id = state_repo.global_state.systemwide_profile_id
+#     systemwide_active = state_repo.global_state.systemwide_active
+
+#     # double check, confirm:
+#     if systemwide_active and systemwide_active:
+#         # notify UI:
+#         Notifications.emit(EventType.SYSTEM_ENABLE, profile_id)
+#     else:
+#         logger.error("Critical Error, notify_on was called out of place.")
+#         Notifications.emit(EventType.SYSTEM_DISABLE, profile_id)

core/errors/translate_error.py

@@ -6,6 +6,7 @@ from core.Errors import (
     InvalidSubscriptionError, MissingSubscriptionError, ProfileActivationError,
     ProfileModificationError, ProfileStateConflictError, UnsupportedApplicationVersionError,
 )
+from core.utils.type_checker import type_checker
 
 
 from typing import Type, Optional
@@ -17,7 +18,7 @@ ERROR_TO_UI_MESSAGE = {
     ProfileModificationError: "WireGuard configuration could not be attached.",
 }
 
-
+@type_checker
 def translate_error(error: Type[Exception], profile_id: int) -> Result:
     """Translate legacy core errors into actions and/or messages via Result Objects."""
     logger.error(str(error))
@@ -66,7 +67,7 @@ def translate_error(error: Type[Exception], profile_id: int) -> Result:
         return Result(valid=False, error_type=ResultError.UNKNOWN, message="An unknown error occured.")
 
 
-
+@type_checker
 def get_ignored_exceptions(ignore_state_conflict: Optional[bool] = False):
     ignored_as_list = []
     endpoint_verification_enabled = ConfigurationController.get_endpoint_verification_enabled()

core/infrastructure/global_state.py

@@ -34,11 +34,22 @@ class ProfileStateRepository:
         # Load existing session IDs from disk into the list
         self.global_state.session_profile_ids = [s.id for s in SessionState.all()]
 
+    def turn_off_system_connection(self):
+        """Clear the system-wide memory cache."""
+        self.global_state.systemwide_profile_id = None
+        self.global_state.firewalled = False
+        self.global_state.dns_set = False
+        self.global_state.systemwide_active = False
+
+
     def sync_system_state(self, state: SystemState):
         """Called by SystemStateController to update memory cache."""
         self.global_state.systemwide_profile_id = state.profile_id
         self.global_state.firewalled = state.firewalled
         self.global_state.dns_set = state.dns_set
+        if state.profile_id:
+            self.global_state.systemwide_active = True
+
 
     def sync_session_added(self, profile_id: int):
         """Called by SessionStateController to update memory cache."""

core/infrastructure/global_state_coordinator.py

@@ -1,8 +1,41 @@
+from core.infrastructure.global_state import ProfileStateRepository
 from core.controllers.SystemStateController import SystemStateController
 from core.controllers.SessionStateController import SessionStateController
 from core.models.Result import Result, ResultError
 from core.errors.logger import logger
 
+
+
+def is_systemwide_on() -> bool:
+    """Returns a boolean if systemwide is connected.  True is Yes, False is No"""
+    state_repo = ProfileStateRepository()
+    return state_repo.global_state.systemwide_active    
+
+def connected_system_profile_id() -> int|None:
+    """Returns a single number of the connected system profile"""
+    state_repo = ProfileStateRepository()
+    print(f"state_repo is {state_repo.global_state}")
+    return state_repo.global_state.systemwide_profile_id
+
+def connected_session_profile_ids() -> list|None:
+    """Returns a list of the currently connected session profile IDs"""
+    state_repo = ProfileStateRepository()
+    return state_repo.global_state.session_profile_ids
+
+
+def is_connected(profile_id: int) -> bool:
+    """Returns a boolean if a given profile is connected"""
+
+    # system-wide:
+    systemwide_profile_id = connected_system_profile_id()
+    if profile_id == systemwide_profile_id:
+        return True
+    
+    # session:
+    state_repo = ProfileStateRepository()
+    return state_repo.is_profile_active(profile_id)
+
+
 def evaluate_state_on_startup() -> Result:
     """When the app first starts, evaluate pre-existing state"""
 
@@ -25,3 +58,5 @@ def evaluate_state_on_startup() -> Result:
             SessionStateController.remove(each_profile.id)
 
     return Result(valid=True)
+
+

core/observers/ClientObserver.py

@@ -4,9 +4,9 @@ from essentials.observers.BaseObserver import BaseObserver
 class ClientObserver(BaseObserver):
 
     def __init__(self):
-
-        self.on_synchronizing = []
-        self.on_synchronized = []
-        self.on_updating = []
-        self.on_update_progressing = []
-        self.on_updated = []
+        pass
+        # self.on_synchronizing = []
+        # self.on_synchronized = []
+        # self.on_updating = []
+        # self.on_update_progressing = []
+        # self.on_updated = []

core/observers/EventBus.py

@@ -0,0 +1,19 @@
+
+class EventBus:
+    _subscribers = {}
+
+    @classmethod
+    def subscribe(cls, event_type, callback):
+        if event_type not in cls._subscribers:
+            cls._subscribers[event_type] = []
+        cls._subscribers[event_type].append(callback)
+
+    @classmethod
+    def emit(cls, event_type, data=None):
+        for callback in cls._subscribers.get(event_type, []):
+            callback(data)
+
+    @classmethod
+    def unsubscribe(cls, event_type, callback):
+        if event_type in cls._subscribers:
+            cls._subscribers[event_type].remove(callback)

core/observers/Notifications.py

@@ -0,0 +1,28 @@
+
+from enum import Enum, auto
+
+class EventType(Enum):
+    SESSION_PROFILE_ENABLE = auto()
+    SESSION_PROFILE_DISABLE = auto()
+    SYSTEM_ENABLE = auto()
+    SYSTEM_DISABLE = auto()
+    PROFILE_CREATED = auto()
+    PROFILE_DELETED = auto()
+
+class Notifications:
+    _subscribers = {}
+
+    @classmethod
+    def subscribe(cls, event_type: EventType, callback):
+        if event_type not in cls._subscribers:
+            cls._subscribers[event_type] = []
+        cls._subscribers[event_type].append(callback)
+
+    @classmethod
+    def emit(cls, event_type: EventType, data=None):
+        for callback in cls._subscribers.get(event_type, []):
+            callback(data)
+
+
+
+

core/observers/ProfileObserver.py

@@ -4,9 +4,9 @@ from essentials.observers.BaseObserver import BaseObserver
 class ProfileObserver(BaseObserver):
 
     def __init__(self):
-
-        self.on_created = []
-        self.on_updated = []
-        self.on_destroyed = []
-        self.on_disabled = []
-        self.on_enabled = []
+        pass
+        # self.on_created = []
+        # self.on_updated = []
+        # self.on_destroyed = []
+        # self.on_disabled = []
+        # self.on_enabled = []

core/services/networking/systemwide/encrypted_proxy/singbox_runner.py

@@ -11,6 +11,7 @@ from core.services.networking.general_connection_tools import ip
 from core.utils.basic_operations.write_string_to_text_file import write_string_to_text_file
 from core.utils.search_tools import search_for_phrase
 from core.utils.basic_operations.does_file_exist import does_file_exist
+from core.observers.Notifications import Notifications, EventType
 
 from core.models.Result import Result, ResultError
 from core.errors.logger import logger
@@ -348,6 +349,7 @@ def start_singbox(
         connection_observer.notify("connecting", "DNS Changed.")
     # raises error if not okay.
 
+    Notifications.emit(EventType.SYSTEM_ENABLE, profile_id)
     # ============= CONCLUSION =============
     return Result(valid=True, data=process_id)
 

core/services/networking/systemwide/systemwide_wireguard.py

@@ -4,6 +4,7 @@ from core.services.networking.general_connection_tools.testing_evaluating import
 from core.services.keys_and_verifications.endpoint_verification import verify_wireguard_endpoint
 from core.models.Result import Result, ResultError
 from core.services.networking.systemwide.systemwide_utils import extract_wg_interface_name, check_system_prereqs
+from core.observers.Notifications import Notifications, EventType
 
 # from core.services.networking.general_connection_tools.config_tools import extract_endpoint_ip, extract_dns
 from core.services.networking.systemwide import killswitch
@@ -211,6 +212,7 @@ def __establish_system_connection(
         current_state.dns_set = did_dns_work
         SystemStateController.update_or_create(current_state)
 
+    Notifications.emit(EventType.SYSTEM_ENABLE, profile_id)
     return Result(valid=True, data=current_state)