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from . import lib, VPNStateChange, GetDataError, GetMultipleDataError, GetPtrString
from ctypes import *
from enum import Enum
from typing import Callable, Optional, Tuple
class StateType(Enum):
Enter = 1
Leave = 2
class EventHandler(object):
def __init__(self):
self.handlers = {}
def on(self, state: str, state_type: StateType) -> Callable:
def wrapped_f(func):
if (state, state_type) not in self.handlers:
self.handlers[(state, state_type)] = []
self.handlers[(state, state_type)].append(func)
return func
return wrapped_f
def run_state(
self, state: str, other_state: str, state_type: StateType, data: str
) -> None:
if (state, state_type) not in self.handlers:
return
for func in self.handlers[(state, state_type)]:
func(other_state, data)
def run(self, old_state: str, new_state: str, data: str) -> None:
if old_state == new_state:
return
self.run_state(old_state, new_state, StateType.Leave, data)
self.run_state(new_state, old_state, StateType.Enter, data)
# Registers the python app with the Go code
# name: The name of the app to be registered
# state_callback: The callback to trigger whenever a state is changed
def Register(
name: str, config_directory: str, state_callback: Optional[Callable], debug: bool
) -> str:
if not state_callback:
return "No callback provided"
name_bytes = name.encode("utf-8")
dir_bytes = config_directory.encode("utf-8")
ptr_err = lib.Register(name_bytes, dir_bytes, state_callback, debug)
err_string = GetPtrString(ptr_err)
return err_string
def CancelOAuth(name: str) -> str:
name_bytes = name.encode("utf-8")
ptr_err = lib.CancelOAuth(name_bytes)
err_string = GetPtrString(ptr_err)
return err_string
def Deregister(name: str) -> str:
name_bytes = name.encode("utf-8")
ptr_err = lib.Deregister(name_bytes)
err_string = GetPtrString(ptr_err)
return err_string
def GetDiscoServers(name: str) -> Tuple[str, str]:
name_bytes = name.encode("utf-8")
servers, servers_err = GetDataError(lib.GetServersList(name_bytes))
return servers, servers_err
def GetDiscoOrganizations(name: str) -> Tuple[str, str]:
name_bytes = name.encode("utf-8")
organizations, organizations_err = GetDataError(
lib.GetOrganizationsList(name_bytes)
)
return organizations, organizations_err
def GetConnectConfig(
name: str, url: str, is_secure_internet: bool, force_tcp: bool
) -> Tuple[str, str, str]:
name_bytes = name.encode("utf-8")
url_bytes = url.encode("utf-8")
multiple_data_error = lib.GetConnectConfig(
name_bytes, url_bytes, is_secure_internet, force_tcp
)
return GetMultipleDataError(multiple_data_error)
def SetConnected(name: str) -> str:
name_bytes = name.encode("utf-8")
ptr_err = lib.SetConnected(name_bytes)
err_string = GetPtrString(ptr_err)
return err_string
def SetDisconnected(name: str) -> str:
name_bytes = name.encode("utf-8")
ptr_err = lib.SetDisconnected(name_bytes)
err_string = GetPtrString(ptr_err)
return err_string
# This has to be global as otherwise the callback is not alive
callback_function = None
def register_callback(eduvpn):
global callback_function
callback_function = VPNStateChange(
lambda old_state, new_state, data: eduvpn.callback(
old_state.decode(), new_state.decode(), data.decode()
)
)
def SetProfileID(name: str, profile_id: str) -> str:
name_bytes = name.encode("utf-8")
profile_bytes = profile_id.encode("utf-8")
error_string = lib.SetProfileID(name_bytes, profile_bytes)
return GetPtrString(error_string)
class EduVPN(object):
def __init__(self, name: str, config_directory: str):
self.event_handler = EventHandler()
self.name = name
self.config_directory = config_directory
register_callback(self)
def cancel_oauth(self) -> None:
cancel_oauth_err = CancelOAuth(self.name)
if cancel_oauth_err:
raise Exception(cancel_oauth_err)
def deregister(self) -> None:
deregister_err = Deregister(self.name)
if deregister_err:
raise Exception(deregister_err)
def register(self, debug: bool = False) -> None:
register_err = Register(
self.name, self.config_directory, callback_function, debug
)
if register_err:
raise Exception(register_err)
def get_disco_servers(self) -> str:
servers, servers_err = GetDiscoServers(self.name)
if servers_err:
raise Exception(servers_err)
return servers
def get_disco_organizations(self) -> str:
organizations, organizations_err = GetDiscoOrganizations(self.name)
if organizations_err:
raise Exception(organizations_err)
return organizations
def get_config_institute_access(
self, url: str, force_tcp: bool = False
) -> Tuple[str, str]:
config, config_type, config_err = GetConnectConfig(
self.name, url, False, force_tcp
)
if config_err:
raise Exception(config_err)
return config, config_type
def get_config_secure_internet(
self, url: str, force_tcp: bool = False
) -> Tuple[str, str]:
config, config_type, config_err = GetConnectConfig(
self.name, url, True, force_tcp
)
if config_err:
raise Exception(config_err)
return config, config_type
def set_disconnected(self) -> None:
disconnect_err = SetDisconnected(self.name)
if disconnect_err:
raise Exception(disconnect_err)
def set_connected(self) -> None:
connect_err = SetConnected(self.name)
if connect_err:
raise Exception(connect_err)
@property
def event(self) -> EventHandler:
return self.event_handler
def callback(self, old_state: str, new_state: str, data: str) -> None:
self.event.run(old_state, new_state, data)
def set_profile(self, profile_id: str) -> None:
profile_err = SetProfileID(self.name, profile_id)
if profile_err:
raise Exception(profile_err)
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