search

langflow-ai / langflow

Langflow is a low-code app builder for RAG and multi-agent AI applications. It’s Python-based and agnostic to any model, API, or database.
http://www.langflow.org
MIT License
25.51k stars 3.45k forks source link

STORE KEY ERROR - "Fernet key must be 32 url-safe base64-encoded bytes." #2458

Closed suggsadc closed 4 weeks ago

suggsadc commented 1 month ago

Describe the bug Attempts to use a Langflow Store Key fails with error "Fernet key must be 32 url-safe base64-encoded bytes."

Langflow Version

To Reproduce Steps to reproduce the behavior:

  1. Generate a new key from https://www.langflow.store/
  2. From locally running Langflow (PC Win10) go to Settings>General>(scroll to the bottom) and attempt to save new "Store API Key"
  3. See error: "Fernet key must be 32 url-safe base64-encoded bytes."

Screenshot 2024-07-01 125736

dosubot[bot] commented 1 month ago

To resolve the "Fernet key must be 32 url-safe base64-encoded bytes" error when saving the Langflow Store Key in Langflow Version 1.0.5 on Windows 10, you need to ensure that the Fernet key is properly padded to be 32 url-safe base64-encoded bytes. Here is a function to add the necessary padding to the key:

def add_padding(s):
    # Calculate the number of padding characters needed
    padding_needed = 4 - len(s) % 4
    return s + "=" * padding_needed

def get_fernet(settings_service=Depends(get_settings_service)):
    SECRET_KEY = settings_service.auth_settings.SECRET_KEY.get_secret_value()
    # It's important that your secret key is 32 url-safe base64-encoded bytes
    padded_secret_key = add_padding(SECRET_KEY)
    fernet = Fernet(padded_secret_key)
    return fernet

Ensure that your SECRET_KEY is properly padded using the add_padding function before creating the Fernet key. This should resolve the error [1][2][3].

To continue talking to Dosu, mention @dosu.

lucaseduoli commented 1 month ago

Hello, How are you copying the API Key? It seems like you are copying the hidden characters, not the actual api key.

If you can send a video of you copying the API Key, pasting it into a notepad and then pasting it into the API Key field, I would be grateful

saikolasani commented 1 month ago

@suggsadc I would also suggest installing a newer version of langflow. 1.0.11 is the latest version.

saikolasani commented 1 month ago

@suggsadc I was not able to reproduce the error on 1.0.5 nor the current version. As Lucas mentioned, I would suggest rechecking the API key and ensuring no extra characters are being pasted by accident.

suggsadc commented 1 month ago

thank you both for keeping up with this ticket... screen vid of me going through the process as i understand it can be found here.

Langflow 1.0.11 does give a different error from before

[07/22/24 12:15:51] ERROR 2024-07-22 12:15:51 - ERROR - utils - JWT decoding error: Not enough utils.py:133 segments ERROR 2024-07-22 12:15:51 - ERROR - utils - Not enough segmentsTraceback (most utils.py:134 recent call last):

                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\jos
                         e\jws.py", line 176, in _load
                             signing_input, crypto_segment = jwt.rsplit(b".", 1)
                                                             |   -> <method 'rsplit' of 'bytes'
                         objects>
                                                             -> b'XcSN5CpN6YyNFpUbQznumPXENxtnnZRv'

                         ValueError: not enough values to unpack (expected 2, got 1)

                         During handling of the above exception, another exception occurred:

                         Traceback (most recent call last):

                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\jos
                         e\jwt.py", line 142, in decode
                             payload = jws.verify(token, key, algorithms, verify=verify_signature)
                                       |   |      |      |    |                  -> True
                                       |   |      |      |    -> ['HS256']
                                       |   |      |      -> 'R-DzCwki7-fCIIHe1rUxvDqfRdyLQi0x'
                                       |   |      -> 'XcSN5CpN6YyNFpUbQznumPXENxtnnZRv'
                                       |   -> <function verify at 0x000001E8B9B73F60>
                                       -> <module 'jose.jws' from
                         'C:\\Users\\HPZWS1\\AppData\\Local\\Programs\\Python\\Python311\\Lib\\site-pac
                         kages\\jose\\jws.py'>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\jos
                         e\jws.py", line 70, in verify
                             header, payload, signing_input, signature = _load(token)
                                                                         |     ->
                         'XcSN5CpN6YyNFpUbQznumPXENxtnnZRv'
                                                                         -> <function _load at
                         0x000001E8B9CE36A0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\jos
                         e\jws.py", line 180, in _load
                             raise JWSError("Not enough segments")
                                   -> <class 'jose.exceptions.JWSError'>

                         jose.exceptions.JWSError: Not enough segments

                         During handling of the above exception, another exception occurred:

                         Traceback (most recent call last):

                           File "<frozen runpy>", line 198, in _run_module_as_main
                           File "<frozen runpy>", line 88, in _run_code
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\__main__.py", line 609, in <module>
                             main()
                             -> <function main at 0x000001E8EA8DCFE0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\__main__.py", line 605, in main
                             app()
                             -> <typer.main.Typer object at 0x000001E8E9CFD790>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\typ
                         er\main.py", line 309, in __call__
                             return get_command(self)(*args, **kwargs)
                                    |           |      |       -> {}
                                    |           |      -> ()
                                    |           -> <typer.main.Typer object at 0x000001E8E9CFD790>
                                    -> <function get_command at 0x000001E8B478DEE0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\cli
                         ck\core.py", line 1157, in __call__
                             return self.main(*args, **kwargs)
                                    |    |     |       -> {}
                                    |    |     -> ()
                                    |    -> <function TyperGroup.main at 0x000001E8B477AAC0>
                                    -> <TyperGroup >
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\typ
                         er\core.py", line 723, in main
                             return _main(
                                    -> <function _main at 0x000001E8B4779C60>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\typ
                         er\core.py", line 193, in _main
                             rv = self.invoke(ctx)
                                  |    |      -> <click.core.Context object at 0x000001E8EA490190>
                                  |    -> <function MultiCommand.invoke at 0x000001E8B2AD6CA0>
                                  -> <TyperGroup >
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\cli
                         ck\core.py", line 1688, in invoke
                             return _process_result(sub_ctx.command.invoke(sub_ctx))
                                    |               |       |       |      -> <click.core.Context
                         object at 0x000001E8EA47A390>
                                    |               |       |       -> <function Command.invoke at
                         0x000001E8B2AD6660>
                                    |               |       -> <TyperCommand run>
                                    |               -> <click.core.Context object at
                         0x000001E8EA47A390>
                                    -> <function MultiCommand.invoke.<locals>._process_result at
                         0x000001E8EA877060>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\cli
                         ck\core.py", line 1434, in invoke
                             return ctx.invoke(self.callback, **ctx.params)
                                    |   |      |    |           |   -> {'host': '192.168.1.14',
                         'env_file': 'C:\\Users\\HPZWS1\\Code\\langflow\\.env', 'workers': 1,
                         'timeout': 300, 'port': 7860, '...
                                    |   |      |    |           -> <click.core.Context object at
                         0x000001E8EA47A390>
                                    |   |      |    -> <function run at 0x000001E8EA8DD120>
                                    |   |      -> <TyperCommand run>
                                    |   -> <function Context.invoke at 0x000001E8B2AD4FE0>
                                    -> <click.core.Context object at 0x000001E8EA47A390>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\cli
                         ck\core.py", line 783, in invoke
                             return __callback(*args, **kwargs)
                                                |       -> {'host': '192.168.1.14', 'env_file':
                         'C:\\Users\\HPZWS1\\Code\\langflow\\.env', 'workers': 1, 'timeout': 300,
                         'port': 7860, '...
                                                -> ()
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\typ
                         er\main.py", line 692, in wrapper
                             return callback(**use_params)
                                    |          -> {'host': '192.168.1.14', 'workers': 1, 'timeout':
                         300, 'port': 7860, 'components_path': WindowsPath('C:/Users/HPZWS1/AppData/...
                                    -> <function run at 0x000001E8EA8DC360>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\__main__.py", line 191, in run
                             process = run_on_windows(host, port, log_level, options, app)
                                       |              |     |     |          |        ->
                         <fastapi.applications.FastAPI object at 0x000001E8EA83D350>
                                       |              |     |     |          -> {'bind':
                         '192.168.1.14:7860', 'workers': 1, 'timeout': 300}
                                       |              |     |     -> 'critical'
                                       |              |     -> 7860
                                       |              -> '192.168.1.14'
                                       -> <function run_on_windows at 0x000001E8EA8DC4A0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\__main__.py", line 234, in run_on_windows
                             run_langflow(host, port, log_level, options, app)
                             |            |     |     |          |        ->
                         <fastapi.applications.FastAPI object at 0x000001E8EA83D350>
                             |            |     |     |          -> {'bind': '192.168.1.14:7860',
                         'workers': 1, 'timeout': 300}
                             |            |     |     -> 'critical'
                             |            |     -> 7860
                             |            -> '192.168.1.14'
                             -> <function run_langflow at 0x000001E8EA8DCC20>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\__main__.py", line 434, in run_langflow
                             uvicorn.run(
                             |       -> <function run at 0x000001E8EC36CAE0>
                             -> <module 'uvicorn' from
                         'C:\\Users\\HPZWS1\\AppData\\Local\\Programs\\Python\\Python311\\Lib\\site-pac
                         kages\\uvicorn\\__init__...
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\uvi
                         corn\main.py", line 577, in run
                             server.run()
                             |      -> <function Server.run at 0x000001E8EC36CCC0>
                             -> <uvicorn.server.Server object at 0x000001E8EA4EA350>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\uvi
                         corn\server.py", line 65, in run
                             return asyncio.run(self.serve(sockets=sockets))
                                    |       |   |    |             -> None
                                    |       |   |    -> <function Server.serve at 0x000001E8EC36CD60>
                                    |       |   -> <uvicorn.server.Server object at 0x000001E8EA4EA350>
                                    |       -> <function _patch_asyncio.<locals>.run at
                         0x000001E8EC45DDA0>
                                    -> <module 'asyncio' from
                         'C:\\Users\\HPZWS1\\AppData\\Local\\Programs\\Python\\Python311\\Lib\\asyncio\
                         \__init__.py'>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.p
                         y", line 190, in run
                             return runner.run(main)
                                    |      |   -> <coroutine object Server.serve at 0x000001E8EA990220>
                                    |      -> <function Runner.run at 0x000001E8B36F5580>
                                    -> <asyncio.runners.Runner object at 0x000001E8EC3166D0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.p
                         y", line 118, in run
                             return self._loop.run_until_complete(task)
                                    |    |     |                  -> <Task pending name='Task-1'
                         coro=<Server.serve() running at
                         C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-...
                                    |    |     -> <function _patch_loop.<locals>.run_until_complete at
                         0x000001E8EC45E160>
                                    |    -> <ProactorEventLoop running=True closed=False debug=False>
                                    -> <asyncio.runners.Runner object at 0x000001E8EC3166D0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_even
                         ts.py", line 641, in run_until_complete
                             self.run_forever()
                             |    -> <function _patch_loop.<locals>.run_forever at 0x000001E8EC45E0C0>
                             -> <ProactorEventLoop running=True closed=False debug=False>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\windows_e
                         vents.py", line 321, in run_forever
                             super().run_forever()
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_even
                         ts.py", line 608, in run_forever
                             self._run_once()
                             |    -> <function _patch_loop.<locals>._run_once at 0x000001E8EC45E200>
                             -> <ProactorEventLoop running=True closed=False debug=False>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\nes
                         t_asyncio.py", line 133, in _run_once
                             handle._run()
                             |      -> <function Handle._run at 0x000001E8B3684EA0>
                             -> <Handle Task.__wakeup(<Future finis...01E8F8FE9450>>)>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\events.py
                         ", line 84, in _run
                             self._context.run(self._callback, *self._args)
                             |    |            |    |           |    -> <member '_args' of 'Handle'
                         objects>
                             |    |            |    |           -> <Handle Task.__wakeup(<Future
                         finis...01E8F8FE9450>>)>
                             |    |            |    -> <member '_callback' of 'Handle' objects>
                             |    |            -> <Handle Task.__wakeup(<Future
                         finis...01E8F8FE9450>>)>
                             |    -> <member '_context' of 'Handle' objects>
                             -> <Handle Task.__wakeup(<Future finis...01E8F8FE9450>>)>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\tasks.py"
                         , line 360, in __wakeup
                             self.__step()
                             -> <Task pending
                         name='starlette.middleware.base.BaseHTTPMiddleware.__call__.<locals>.call_next
                         .<locals>.coro' coro=<BaseHTTPMid...
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\asyncio\tasks.py"
                         , line 277, in __step
                             result = coro.send(None)
                                      |    -> <method 'send' of 'coroutine' objects>
                                      -> <coroutine object
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.coro at
                         0x000001E8EE9C7EF0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\middleware\base.py", line 151, in coro
                             await self.app(scope, receive_or_disconnect, send_no_error)
                                   |    |   |      |                      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.send_no_error at
                         0x000001E8F9F70900>
                                   |    |   |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |    |   -> {'type': 'http', 'asgi': {'version': '3.0',
                         'spec_version': '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14',
                         7860), ...
                                   |    -> <starlette.middleware.cors.CORSMiddleware object at
                         0x000001E8EA401750>
                                   -> <langflow.main.JavaScriptMIMETypeMiddleware object at
                         0x000001E8EC1D4510>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\middleware\cors.py", line 93, in __call__
                             await self.simple_response(scope, receive, send, request_headers=headers)
                                   |    |               |      |        |                     ->
                         Headers({'host': '192.168.1.14:7860', 'connection': 'keep-alive',
                         'content-length': '46', 'accept': 'application/json, text/p...
                                   |    |               |      |        -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.send_no_error at
                         0x000001E8F9F70900>
                                   |    |               |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |    |               -> {'type': 'http', 'asgi': {'version': '3.0',
                         'spec_version': '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14',
                         7860), ...
                                   |    -> <function CORSMiddleware.simple_response at
                         0x000001E8B6B736A0>
                                   -> <starlette.middleware.cors.CORSMiddleware object at
                         0x000001E8EA401750>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\middleware\cors.py", line 148, in simple_response
                             await self.app(scope, receive, send)
                                   |    |   |      |        -> functools.partial(<bound method
                         CORSMiddleware.send of <starlette.middleware.cors.CORSMiddleware object at
                         0x000001E8EA401750...
                                   |    |   |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |    |   -> {'type': 'http', 'asgi': {'version': '3.0',
                         'spec_version': '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14',
                         7860), ...
                                   |    -> <starlette.middleware.exceptions.ExceptionMiddleware object
                         at 0x000001E8EC464050>
                                   -> <starlette.middleware.cors.CORSMiddleware object at
                         0x000001E8EA401750>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\middleware\exceptions.py", line 65, in __call__
                             await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
                                   |                            |    |    |     |      |        ->
                         functools.partial(<bound method CORSMiddleware.send of
                         <starlette.middleware.cors.CORSMiddleware object at 0x000001E8EA401750...
                                   |                            |    |    |     |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |                            |    |    |     -> {'type': 'http',
                         'asgi': {'version': '3.0', 'spec_version': '2.4'}, 'http_version': '1.1',
                         'server': ('192.168.1.14', 7860), ...
                                   |                            |    |    ->
                         <starlette.requests.Request object at 0x000001E8FB721D90>
                                   |                            |    -> <fastapi.routing.APIRouter
                         object at 0x000001E8EA493A10>
                                   |                            ->
                         <starlette.middleware.exceptions.ExceptionMiddleware object at
                         0x000001E8EC464050>
                                   -> <function wrap_app_handling_exceptions at 0x000001E8B6B28D60>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\_exception_handler.py", line 53, in wrapped_app
                             await app(scope, receive, sender)
                                   |   |      |        -> <function
                         wrap_app_handling_exceptions.<locals>.wrapped_app.<locals>.sender at
                         0x000001E8F9D80540>
                                   |   |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |   -> {'type': 'http', 'asgi': {'version': '3.0', 'spec_version':
                         '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14', 7860), ...
                                   -> <fastapi.routing.APIRouter object at 0x000001E8EA493A10>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\routing.py", line 756, in __call__
                             await self.middleware_stack(scope, receive, send)
                                   |    |                |      |        -> <function
                         wrap_app_handling_exceptions.<locals>.wrapped_app.<locals>.sender at
                         0x000001E8F9D80540>
                                   |    |                |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |    |                -> {'type': 'http', 'asgi': {'version': '3.0',
                         'spec_version': '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14',
                         7860), ...
                                   |    -> <bound method Router.app of <fastapi.routing.APIRouter
                         object at 0x000001E8EA493A10>>
                                   -> <fastapi.routing.APIRouter object at 0x000001E8EA493A10>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\routing.py", line 776, in app
                             await route.handle(scope, receive, send)
                                   |     |      |      |        -> <function
                         wrap_app_handling_exceptions.<locals>.wrapped_app.<locals>.sender at
                         0x000001E8F9D80540>
                                   |     |      |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |     |      -> {'type': 'http', 'asgi': {'version': '3.0',
                         'spec_version': '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14',
                         7860), ...
                                   |     -> <function Route.handle at 0x000001E8B6B2A480>
                                   -> APIRoute(path='/api/v1/api_key/store', name='save_store_api_key',
                         methods=['POST'])
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\routing.py", line 297, in handle
                             await self.app(scope, receive, send)
                                   |    |   |      |        -> <function
                         wrap_app_handling_exceptions.<locals>.wrapped_app.<locals>.sender at
                         0x000001E8F9D80540>
                                   |    |   |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |    |   -> {'type': 'http', 'asgi': {'version': '3.0',
                         'spec_version': '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14',
                         7860), ...
                                   |    -> <function request_response.<locals>.app at
                         0x000001E8EC2107C0>
                                   -> APIRoute(path='/api/v1/api_key/store', name='save_store_api_key',
                         methods=['POST'])
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\routing.py", line 77, in app
                             await wrap_app_handling_exceptions(app, request)(scope, receive, send)
                                   |                            |    |        |      |        ->
                         <function wrap_app_handling_exceptions.<locals>.wrapped_app.<locals>.sender at
                         0x000001E8F9D80540>
                                   |                            |    |        |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |                            |    |        -> {'type': 'http',
                         'asgi': {'version': '3.0', 'spec_version': '2.4'}, 'http_version': '1.1',
                         'server': ('192.168.1.14', 7860), ...
                                   |                            |    -> <starlette.requests.Request
                         object at 0x000001E8FB721E90>
                                   |                            -> <function
                         request_response.<locals>.app.<locals>.app at 0x000001E8F9D81EE0>
                                   -> <function wrap_app_handling_exceptions at 0x000001E8B6B28D60>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\_exception_handler.py", line 53, in wrapped_app
                             await app(scope, receive, sender)
                                   |   |      |        -> <function
                         wrap_app_handling_exceptions.<locals>.wrapped_app.<locals>.sender at
                         0x000001E8F9D81D00>
                                   |   |      -> <function
                         BaseHTTPMiddleware.__call__.<locals>.call_next.<locals>.receive_or_disconnect
                         at 0x000001E8F9F707C0>
                                   |   -> {'type': 'http', 'asgi': {'version': '3.0', 'spec_version':
                         '2.4'}, 'http_version': '1.1', 'server': ('192.168.1.14', 7860), ...
                                   -> <function request_response.<locals>.app.<locals>.app at
                         0x000001E8F9D81EE0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\sta
                         rlette\routing.py", line 72, in app
                             response = await func(request)
                                              |    -> <starlette.requests.Request object at
                         0x000001E8FB721E90>
                                              -> <function get_request_handler.<locals>.app at
                         0x000001E8EC210220>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\fas
                         tapi\routing.py", line 269, in app
                             solved_result = await solve_dependencies(
                                                   -> <function solve_dependencies at
                         0x000001E8B6B06B60>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\fas
                         tapi\dependencies\utils.py", line 572, in solve_dependencies
                             solved_result = await solve_dependencies(
                                                   -> <function solve_dependencies at
                         0x000001E8B6B06B60>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\fas
                         tapi\dependencies\utils.py", line 600, in solve_dependencies
                             solved = await call(**sub_values)
                                            |      -> {'token': 'XcSN5CpN6YyNFpUbQznumPXENxtnnZRv',
                         'query_param': None, 'header_param': None, 'db': <sqlmodel.orm.session.Session
                         ...
                                            -> <function get_current_user at 0x000001E8B9CF00E0>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\services\auth\utils.py", line 78, in get_current_user
                             return await get_current_user_by_jwt(token, db)
                                          |                       |      ->
                         <sqlmodel.orm.session.Session object at 0x000001E8F8FE9450>
                                          |                       -> 'XcSN5CpN6YyNFpUbQznumPXENxtnnZRv'
                                          -> <function get_current_user_by_jwt at 0x000001E8B9CF04A0>
                         > File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\lan
                         gflow\services\auth\utils.py", line 112, in get_current_user_by_jwt
                             payload = jwt.decode(token, secret_key, algorithms=)
                                       |   |      |      |                       |                |
                         -> 'HS256'
                                       |   |      |      |                       |                ->
                         AuthSettings(CONFIG_DIR='C:\\Users\\HPZWS1\\AppData\\Local\\langflow\\langflow
                         \\Cache', SECRET_KEY=SecretStr('**********'), A...
                                       |   |      |      |                       ->
                         <langflow.services.settings.service.SettingsService object at
                         0x000001E8BA416750>
                                       |   |      |      -> 'R-DzCwki7-fCIIHe1rUxvDqfRdyLQi0x'
                                       |   |      -> 'XcSN5CpN6YyNFpUbQznumPXENxtnnZRv'
                                       |   -> <function decode at 0x000001E8B9B73E20>
                                       -> <module 'jose.jwt' from
                         'C:\\Users\\HPZWS1\\AppData\\Local\\Programs\\Python\\Python311\\Lib\\site-pac
                         kages\\jose\\jwt.py'>
                           File
                         "C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\jos
                         e\jwt.py", line 144, in decode
                             raise JWTError(e)
                                   -> <class 'jose.exceptions.JWTError'>

                         jose.exceptions.JWTError: Not enough segments

                         ╭──────────────────── Traceback (most recent call last) ─────────────────────╮
                         │ C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\ │
                         │ jose\jws.py:176 in _load                                                   │
                         │                                                                            │
                         │   173 │   if isinstance(jwt, str):                                         │
                         │   174 │   │   jwt = jwt.encode("utf-8")                                    │
                         │   175 │   try:                                                             │
                         │ ❱ 176 │   │   signing_input, crypto_segment = jwt.rsplit(b".", 1)          │
                         │   177 │   │   header_segment, claims_segment = signing_input.split(b".", 1 │
                         │   178 │   │   header_data = base64url_decode(header_segment)               │
                         │   179 │   except ValueError:                                               │
                         ╰────────────────────────────────────────────────────────────────────────────╯
                         ValueError: not enough values to unpack (expected 2, got 1)

                         During handling of the above exception, another exception occurred:

                         ╭──────────────────── Traceback (most recent call last) ─────────────────────╮
                         │ C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\ │
                         │ jose\jwt.py:142 in decode                                                  │
                         │                                                                            │
                         │   139 │   verify_signature = defaults.get("verify_signature", True)        │
                         │   140 │                                                                    │
                         │   141 │   try:                                                             │
                         │ ❱ 142 │   │   payload = jws.verify(token, key, algorithms, verify=verify_s │
                         │   143 │   except JWSError as e:                                            │
                         │   144 │   │   raise JWTError(e)                                            │
                         │   145                                                                      │
                         │                                                                            │
                         │ C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\ │
                         │ jose\jws.py:70 in verify                                                   │
                         │                                                                            │
                         │    67 │                                                                    │
                         │    68 │   """                                                              │
                         │    69 │                                                                    │
                         │ ❱  70 │   header, payload, signing_input, signature = _load(token)         │
                         │    71 │                                                                    │
                         │    72 │   if verify:                                                       │
                         │    73 │   │   _verify_signature(signing_input, header, signature, key, alg │
                         │                                                                            │
                         │ C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\ │
                         │ jose\jws.py:180 in _load                                                   │
                         │                                                                            │
                         │   177 │   │   header_segment, claims_segment = signing_input.split(b".", 1 │
                         │   178 │   │   header_data = base64url_decode(header_segment)               │
                         │   179 │   except ValueError:                                               │
                         │ ❱ 180 │   │   raise JWSError("Not enough segments")                        │
                         │   181 │   except (TypeError, binascii.Error):                              │
                         │   182 │   │   raise JWSError("Invalid header padding")                     │
                         │   183                                                                      │
                         ╰────────────────────────────────────────────────────────────────────────────╯
                         JWSError: Not enough segments

                         During handling of the above exception, another exception occurred:

                         ╭──────────────────── Traceback (most recent call last) ─────────────────────╮
                         │ C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\ │
                         │ langflow\services\auth\utils.py:112 in get_current_user_by_jwt             │
                         │                                                                            │
                         │   109 │   try:                                                             │
                         │   110 │   │   with warnings.catch_warnings():                              │
                         │   111 │   │   │   warnings.simplefilter("ignore")                          │
                         │ ❱ 112 │   │   │   payload = jwt.decode(token, secret_key,                  │
                         │       algorithms=[settings_service.auth_settings.ALGORITHM])               │
                         │   113 │   │   user_id: UUID = payload.get("sub")  # type: ignore           │
                         │   114 │   │   token_type: str = payload.get("type")  # type: ignore        │
                         │   115 │   │   if expires := payload.get("exp", None):                      │
                         │                                                                            │
                         │ C:\Users\HPZWS1\AppData\Local\Programs\Python\Python311\Lib\site-packages\ │
                         │ jose\jwt.py:144 in decode                                                  │
                         │                                                                            │
                         │   141 │   try:                                                             │
                         │   142 │   │   payload = jws.verify(token, key, algorithms, verify=verify_s │
                         │   143 │   except JWSError as e:                                            │
                         │ ❱ 144 │   │   raise JWTError(e)                                            │
                         │   145 │                                                                    │
                         │   146 │   # Needed for at_hash verification                                │
                         │   147 │   algorithm = jws.get_unverified_header(token)["alg"]              │
                         ╰────────────────────────────────────────────────────────────────────────────╯
                         JWTError: Not enough segments
jordanrfrazier commented 1 month ago

Hi @suggsadc, the secret key stored in the .cache folder is generated randomly during Langflow's startup and saved.

This key is a URL-safe base64-encoded 32-byte used by the Fernet library for encryption and decryption, so it should not be updated unless the Langflow folder in .cache is deleted.

The key you enter in the frontend application will be saved in the database under your user account, encrypted with the secret key mentioned above.

To work around this error, delete the secret_key file in the .cache folder and run Langflow again to generate a new key. Additionally, the frontend was losing this key stored in a cookie. To address this, we will store the key on the backend instead.

Cristhianzl commented 4 weeks ago

hi @jordanrfrazier @suggsadc,

this #2960 should fix our problem with the store api-keys. any further problems please contact us.

thanks you