* fix: silent errors, stale models, live model fetching (#373, #374, #375)
- api/streaming.py: detect empty agent response (_assistant_added check),
emit apperror(type='no_response' or 'auth_mismatch') instead of silent done
- api/streaming.py: add _token_sent flag so guard works for streaming agents
- static/messages.js: done handler belt-and-suspenders guard for zero replies
- static/messages.js: apperror handler labels 'no_response' type distinctly
- api/config.py: remove gpt-4o and o3 from _FALLBACK_MODELS and
_PROVIDER_MODELS['openai'] (superseded by gpt-5.4-mini and o4-mini)
- api/routes.py: new /api/models/live?provider= endpoint, fetches /v1/models
from provider API with B310 scheme check + SSRF guard
- static/ui.js: _fetchLiveModels() background fetch after static list loads,
appends new models to dropdown, caches per session, skips unsupported providers
Other:
- tests/test_issues_373_374_375.py: 25 new structural tests
- tests/test_regressions.py: extend done-handler window 1500->2500 chars
- CHANGELOG.md: v0.50.19 entry; 947 tests (up from 922)
* fix: SSRF hostname bypass + auth detection operator precedence
1. routes.py: SSRF guard used substring matching (any(k in hostname))
which allows bypass via hostnames like evil-ollama.attacker.com.
Changed to exact hostname matching against a fixed set of known
local hostnames (localhost, 127.0.0.1, 0.0.0.0, ::1).
2. streaming.py: _is_auth detection had a Python operator precedence
bug on the ternary expression. The line:
'AuthenticationError' in type(...).__name__ if _last_err else False
parsed as the ternary absorbing the rest of the or-chain when
_last_err was falsy. Fixed to: (_last_err and 'AuthenticationError' in ...)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* docs: fix v0.50.20 CHANGELOG version number and test count (949 tests)
---------
Co-authored-by: Nathan Esquenazi <nesquena@gmail.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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