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fix: generate valid WEBUI_SECRET_KEY in start_windows.bat (#28061)

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The key generation loop redirected input from a non-existent file
(`SET /p WEBUI_SECRET_KEY=<!random!>>%KEY_FILE%`), printing "The system
cannot find the file specified." once per iteration and leaving the key
file empty, so startup failed with "WEBUI_SECRET_KEY is not set".

Build a fixed-length alphanumeric key by indexing into a charset with
%RANDOM% and write it once with `<nul set /p`. Also quote the key file
path and use delayed expansion so paths with spaces work.


Claude-Session: https://claude.ai/code/session_01CmgBivWjad68mX4yBVWMi2

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Classic298
2026-08-11 07:22:43 +02:00
committed by GitHub
parent bd8378f643
commit 2207876ae7
1 changed files with 10 additions and 5 deletions
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15
backend/start_windows.bat
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@@ -35,16 +35,21 @@ IF "%WEBUI_SECRET_KEY_LENGTH%" == "" (
IF "%WEBUI_SECRET_KEY% %WEBUI_JWT_SECRET_KEY%" == " " (
echo Loading WEBUI_SECRET_KEY from file, not provided as an environment variable.
IF NOT EXIST "%KEY_FILE%" (
IF NOT EXIST "!KEY_FILE!" (
echo Generating WEBUI_SECRET_KEY
:: Generate a random value to use as a WEBUI_SECRET_KEY in case the user didn't provide one
SET /p WEBUI_SECRET_KEY=<nul
FOR /L %%i IN (1,1,%WEBUI_SECRET_KEY_LENGTH%) DO SET /p WEBUI_SECRET_KEY=<!random!>>%KEY_FILE%
SET "CHARSET=0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
SET "WEBUI_SECRET_KEY="
FOR /L %%i IN (1,1,!WEBUI_SECRET_KEY_LENGTH!) DO (
SET /A "INDEX=!RANDOM! %% 62"
FOR %%j IN (!INDEX!) DO SET "WEBUI_SECRET_KEY=!WEBUI_SECRET_KEY!!CHARSET:~%%j,1!"
)
<nul SET /p="!WEBUI_SECRET_KEY!">"!KEY_FILE!"
echo WEBUI_SECRET_KEY generated
)
echo Loading WEBUI_SECRET_KEY from %KEY_FILE%
SET /p WEBUI_SECRET_KEY=<%KEY_FILE%
echo Loading WEBUI_SECRET_KEY from !KEY_FILE!
SET /p WEBUI_SECRET_KEY=<"!KEY_FILE!"
)
:: Execute uvicorn