Bug: QR login check_state never detects CONF/DONE status

[jamese5095]

Issue Description

The QR code login flow never completes - check_state() never returns CONF or DONE status even after user scans and confirms the QR code.

Environment

• macOS
• bilibili-api Python library
• Python 3.12

Steps to Reproduce

1. Run python bili_login.py
2. Scan QR code with Bilibili app
3. Confirm login on phone
4. Script continues to print "已扫码，请在手机上确认..." indefinitely

Expected Behavior

• After QR scan + confirmation, check_state() should return QrCodeLoginEvents.CONF then QrCodeLoginEvents.DONE
• Credentials should be saved to bili_credential.json

Actual Behavior

• Script loops forever showing "已扫码，请在手机上确认..."
• check_state() keeps returning QrCodeLoginEvents.SCAN (1) instead of CONF (2) or DONE (3)
• No credential file is ever created

Possible Root Cause

• The bilibili-api library may have changed its enum values
• Or network issue with B站 API
• Or the check_state() is not properly detecting the confirmation

Workaround Attempted

• Modified MCP server to check credential file first (didnt help as file is never created)
• Used multiple QR code scans

Code Analysis

The login loop in bili_login.py:

while True:
    state = await qr.check_state()
    if state == QrCodeLoginEvents.SCAN:
        print("已扫码，请在手机上确认...")
    elif state == QrCodeLoginEvents.CONF:
        print("已确认...")
    # ...
    await asyncio.sleep(2)

The issue is that check_state() always returns SCAN even after confirmation.

[webbrain-one]

Thanks for the detailed report! 👋

I've opened a PR to fix the QR login issue where check_state() gets stuck in the SCAN loop: #3

This update corrects the state detection logic so the flow properly transitions to CONF and DONE after scanning. Please give it a try and let me know if the login completes successfully on your end! 🚀