[GH-ISSUE #15106] issue: filter_functions can just return form_data, but the source code shows filter_function can reutrn form_data ang flags #104466

New Issue

GiteaMirror · 2026-05-18T02:08:42-05:00

GiteaMirror commented

2026-05-18 02:08:42 -05:00

Originally created by @zhanghaochen-817 on GitHub (Jun 18, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/15106

Check Existing Issues

I have searched the existing issues and discussions.
I am using the latest version of Open WebUI.

Installation Method

Git Clone

Open WebUI Version

v0.3.11

Ollama Version (if applicable)

v0.1.32

Operating System

windows 10

Browser (if applicable)

No response

Confirmation

I have read and followed all instructions in README.md.
I am using the latest version of both Open WebUI and Ollama.
I have included the browser console logs.
I have included the Docker container logs.
I have provided every relevant configuration, setting, and environment variable used in my setup.
I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
Start with the initial platform/version/OS and dependencies used,
Specify exact install/launch/configure commands,
List URLs visited, user input (incl. example values/emails/passwords if needed),
Describe all options and toggles enabled or changed,
Include any files or environmental changes,
Identify the expected and actual result at each stage,
Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

filter_functions not oly can return form_data, but also can return flags

Actual Behavior

filter_functions can just return form_data, but the source code shows filter_function can reutrn form_data ang flags.
I will show the source code:
step1:
in backend/openwebui/utils/middleware.py-->def process_chat_payload():
` try:
filter_functions = [
Functions.get_function_by_id(filter_id)
for filter_id in get_sorted_filter_ids(model)
]

    form_data, flags = await process_filter_functions(  #openweui自定义的filter
        request=request,
        filter_functions=filter_functions,
        filter_type="inlet",
        form_data=form_data,
        extra_params=extra_params,
    )

except Exception as e:
    raise Exception(f"Error: {e}")`

we can see filter_function can return 'form_data' and 'flags', so i step into process_filter_functions function.
Step2:
in backend/openwebui/utils/filter.py-->def process_filter_functions():
`

Execute handler

        if inspect.iscoroutinefunction(handler):
            form_data = await handler(**params)
        else:
            form_data = handler(**params)
 .....

return form_data, {}
`
we can see function process_filter_functions just return {}, so the flags only can be {}.

Steps to Reproduce

1.start with windows10 instsall
2.install with source code
3.start_window.bat

Logs & Screenshots

no error, just some questions

Additional Information

No response

Originally created by @zhanghaochen-817 on GitHub (Jun 18, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/15106 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Git Clone ### Open WebUI Version v0.3.11 ### Ollama Version (if applicable) v0.1.32 ### Operating System windows 10 ### Browser (if applicable) _No response_ ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior filter_functions not oly can return form_data, but also can return flags ### Actual Behavior filter_functions can just return form_data, but the source code shows filter_function can reutrn form_data ang flags. I will show the source code: **step1:** in backend/openwebui/utils/middleware.py-->def process_chat_payload(): ` try: filter_functions = [ Functions.get_function_by_id(filter_id) for filter_id in get_sorted_filter_ids(model) ] form_data, flags = await process_filter_functions( #openweui自定义的filter request=request, filter_functions=filter_functions, filter_type="inlet", form_data=form_data, extra_params=extra_params, ) except Exception as e: raise Exception(f"Error: {e}")` we can see filter_function can return 'form_data' and 'flags', so i step into process_filter_functions function. **Step2:** in backend/openwebui/utils/filter.py-->def process_filter_functions(): ` # Execute handler if inspect.iscoroutinefunction(handler): form_data = await handler(**params) else: form_data = handler(**params) ..... return form_data, {} ` we can see function process_filter_functions just return {}, so the flags only can be {}. ### Steps to Reproduce 1.start with windows10 instsall 2.install with source code 3.start_window.bat ### Logs & Screenshots no error, just some questions ### Additional Information _No response_

GiteaMirror added the bug label 2026-05-18 02:08:42 -05:00

GiteaMirror closed this issue

2026-05-18 02:08:43 -05:00

GiteaMirror commented

2026-05-18 02:08:44 -05:00

@zhanghaochen-817 commented on GitHub (Jun 18, 2025):

Dear developer, i wish you can read this issue and replay me. thanks.

@zhanghaochen-817 commented on GitHub (Jun 18, 2025): Dear developer, i wish you can read this issue and replay me. thanks.

GiteaMirror commented

2026-05-18 02:08:44 -05:00

@tjbck commented on GitHub (Jun 18, 2025):

NOT an issue.

@tjbck commented on GitHub (Jun 18, 2025): NOT an issue.

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Reference: github-starred/open-webui#104466