Files
home-gateway/hub-api/routers/chat.py
Hyungi Ahn 79c09cede4 feat: home-gateway 초기 구성 — Mac mini에서 GPU 서버로 전면 이전
OrbStack 라이선스 만료로 Mac mini Docker 서비스를 GPU 서버로 통합.
nginx → Caddy 전환, 12개 서브도메인 자동 HTTPS, fail2ban Caddy JSON 연동.

주요 변경:
- home-caddy: Caddy 리버스 프록시 (Let's Encrypt 자동 HTTPS)
- home-fail2ban: Caddy JSON 로그 기반 보안 모니터링
- home-ddns: Cloudflare DDNS (API 키 .env 분리)
- gpu-hub-api/web: AI 백엔드 라우터 + 웹 UI (gpu-services에서 이전)
- AI 런타임(Ollama) 내부망 전용, 외부는 gpu-hub 인증 게이트웨이 경유

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 04:55:28 +00:00

113 lines
3.4 KiB
Python

from typing import List, Optional
from fastapi import APIRouter, HTTPException, Request
from fastapi.responses import JSONResponse, StreamingResponse
from pydantic import BaseModel
from middleware.rate_limit import check_backend_rate_limit
from services import proxy_ollama, proxy_openai
from services.registry import registry
router = APIRouter(prefix="/v1", tags=["chat"])
class ChatMessage(BaseModel):
role: str
content: str
class ChatRequest(BaseModel):
model: str
messages: List[ChatMessage]
stream: bool = False
temperature: Optional[float] = None
max_tokens: Optional[int] = None
@router.post("/chat/completions")
async def chat_completions(body: ChatRequest, request: Request):
role = getattr(request.state, "role", "anonymous")
if role == "anonymous":
raise HTTPException(
status_code=401,
detail={"error": {"message": "Authentication required", "type": "auth_error", "code": "unauthorized"}},
)
# Resolve model to backend
result = registry.resolve_model(body.model, role)
if not result:
raise HTTPException(
status_code=404,
detail={
"error": {
"message": f"Model '{body.model}' not found or not available",
"type": "invalid_request_error",
"code": "model_not_found",
}
},
)
backend, model_info = result
# Check rate limit
check_backend_rate_limit(backend.id)
# Record request for rate limiting
registry.record_request(backend.id)
messages = [{"role": m.role, "content": m.content} for m in body.messages]
kwargs = {}
if body.temperature is not None:
kwargs["temperature"] = body.temperature
# Use backend-specific model ID if configured, otherwise use the user-facing ID
actual_model = model_info.backend_model_id or body.model
# Route to appropriate proxy
if backend.type == "ollama":
if body.stream:
return StreamingResponse(
proxy_ollama.stream_chat(
backend.url, actual_model, messages, **kwargs
),
media_type="text/event-stream",
headers={
"Cache-Control": "no-cache",
"X-Accel-Buffering": "no",
},
)
else:
result = await proxy_ollama.complete_chat(
backend.url, actual_model, messages, **kwargs
)
return JSONResponse(content=result)
if backend.type == "openai-compat":
if body.stream:
return StreamingResponse(
proxy_openai.stream_chat(
backend.url, actual_model, messages, **kwargs
),
media_type="text/event-stream",
headers={
"Cache-Control": "no-cache",
"X-Accel-Buffering": "no",
},
)
else:
result = await proxy_openai.complete_chat(
backend.url, actual_model, messages, **kwargs
)
return JSONResponse(content=result)
raise HTTPException(
status_code=501,
detail={
"error": {
"message": f"Backend type '{backend.type}' not yet implemented",
"type": "api_error",
"code": "not_implemented",
}
},
)