Subscription-Userinfo total=0 is treated as quota exceeded instead of unlimited

[Andruxa0]

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• I searched and no similar issues were found

Platform/OS

Windows, Android

OS version

Windows 11

Hiddify Version

4.0.5

What Happened?

In previous versions of Hiddify, when the subscription header contained:
Subscription-Userinfo: upload=...; download=...; total=0; expire=...
the client correctly interpreted total=0 as unlimited traffic and displayed no quota limit.

After updating to version 4.0.5, this behavior has changed.
Now, when total=0 is sent in headers, Hiddify shows:
A finite total value (incorrectly calculated)
"Quota exceeded"
A fully filled progress bar
This is incorrect, because total=0 should represent unlimited traffic, not zero quota.

Expected behavior:
Display unlimited traffic (∞ or no limit)
No quota exceeded warning
No progress bar overflow

Actual behavior in 4.0.5:
Shows a finite total (e.g., 85.9 GiB)
Displays "Quota exceeded"
Marks subscription as exhausted
This appears to be a regression compared to earlier versions.

Please clarify:
Is total=0 still officially supported as unlimited?
If not, what is the correct way to indicate unlimited traffic in Subscription-Userinfo?

Thank you.

Minimal Reproducible Example (MRE)

Subscription-Userinfo": total=0 in headers

Expected Behavior

No response

Additional Context

No response

Application Config Options

No response

Relevant log output

No response

Are you willing to submit a PR? If you know how to fix the bug.

• I'm willing to submit a PR (Thank you!)

[poewka]

same problem!!!

[Exxauxted]

Hi, I'm experiencing the same bug as described in the issue title.

Environment:

• App version: 4.0.5
• Platforms affected: Android 15 and Windows 11
• Subscription type: From click-connect

What happens:

• Server sends subscription-userinfo with total=0 (which should mean unlimited/∞ traffic)
• In previous versions, it correctly showed ∞ / no limit
• After update to 4.0.5: shows a finite limit (85.9 GiB in my case), progress bar is full, sometimes "Quota exceeded" or similar, but actual traffic still works normally (VPN connects and speed is fine)

Steps already tried:

• Re-import subscription
• Clear app cache/data
• Full reinstall on both Android and Windows
• Force refresh subscription

Result: The wrong finite limit (85.9 GiB) still appears on both platforms.

This seems to be a regression in parsing total=0 in 4.0.5.

Thanks for fixing it soon!

[0x3mp7y]

Can confirm, this bug is annoying.

[Joursoir]

@hiddify-com hi! ping

Please clarify:
Is total=0 still officially supported as unlimited?
If not, what is the correct way to indicate unlimited traffic in Subscription-Userinfo?

[fawagawa]

@hiddify-com please fix this