0309c154b5
- Add new fields to AssistantConfig for realtime interface configuration, including types, values, and secrets. - Introduce StepFunRealtimeService to handle speech-to-speech processing via WebSocket, integrating STT, LLM, and TTS functionalities. - Refactor pipeline execution to support a new realtime mode, allowing direct text input processing and immediate responses. - Update model resource testing to include validation for StepFun Realtime connections. - Enhance service factory to create realtime services based on configuration settings. - Modify README documentation to reflect new realtime capabilities and usage instructions.
217 lines
7.6 KiB
Python
217 lines
7.6 KiB
Python
"""Connectivity checks for interface-definition driven model resources."""
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from __future__ import annotations
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import asyncio
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import io
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import json
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import time
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import wave
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from urllib.parse import parse_qsl, urlencode, urlsplit, urlunsplit
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import httpx
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from websockets.asyncio.client import connect as websocket_connect
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import config
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from schemas import ModelResourceTestResult
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TEST_TIMEOUT_SECONDS = 10.0
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def _endpoint(base_url: str, path: str) -> str:
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return f"{base_url.rstrip('/')}/{path.lstrip('/')}"
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def _silent_wav() -> bytes:
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buffer = io.BytesIO()
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with wave.open(buffer, "wb") as wav:
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wav.setnchannels(1)
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wav.setsampwidth(2)
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wav.setframerate(16_000)
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wav.writeframes(b"\x00\x00" * 1_600)
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return buffer.getvalue()
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def _error_detail(response: httpx.Response, secrets: dict) -> str:
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try:
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body = response.json()
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detail = (
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body.get("error", {}).get("message")
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if isinstance(body, dict) and isinstance(body.get("error"), dict)
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else body.get("detail") if isinstance(body, dict) else None
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)
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except ValueError:
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detail = None
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text = str(detail or response.text or response.reason_phrase).strip()
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for secret in secrets.values():
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if secret:
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text = text.replace(str(secret), "***")
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return text[:300]
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async def test_model_resource(
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interface_type: str,
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capability: str,
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values: dict,
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secrets: dict,
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) -> ModelResourceTestResult:
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if interface_type.startswith("xfyun-"):
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return ModelResourceTestResult(
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ok=True,
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message="讯飞连接参数有效",
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detail="鉴权字段和连接参数完整，请在语音测试页验证签名及音频链路",
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)
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if interface_type == "stepfun-realtime":
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return await _test_stepfun_realtime(values, secrets)
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if capability == "Realtime":
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return ModelResourceTestResult(
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ok=False,
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message="暂不支持 Realtime 连接测试",
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detail="请在助手语音测试页验证实时连接",
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)
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api_url = str(values.get("apiUrl") or "")
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model_id = str(values.get("modelId") or "")
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api_key = str(secrets.get("apiKey") or "")
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headers = {"Authorization": f"Bearer {api_key}"}
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started = time.perf_counter()
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try:
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async with httpx.AsyncClient(timeout=TEST_TIMEOUT_SECONDS) as client:
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if capability == "LLM":
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response = await client.post(
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_endpoint(api_url, "chat/completions"),
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headers=headers,
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json={
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"model": model_id,
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"messages": [{"role": "user", "content": "Reply with OK."}],
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"max_tokens": 1,
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"stream": False,
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},
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)
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elif capability == "Embedding":
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response = await client.post(
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_endpoint(api_url, "embeddings"),
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headers=headers,
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json={"model": model_id, "input": "ping"},
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)
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elif capability == "ASR":
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response = await client.post(
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_endpoint(api_url, "audio/transcriptions"),
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headers=headers,
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data={
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"model": model_id,
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**(
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{"language": str(values["language"])}
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if values.get("language")
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else {}
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),
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},
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files={"file": ("test.wav", _silent_wav(), "audio/wav")},
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)
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elif capability == "TTS":
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response = await client.post(
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_endpoint(api_url, "audio/speech"),
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headers=headers,
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json={
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"model": model_id,
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"input": "测试",
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"voice": str(values.get("voice") or config.TTS_VOICE),
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"response_format": "pcm",
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"speed": float(values.get("speed") or 1),
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},
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)
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else:
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return ModelResourceTestResult(
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ok=False,
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message="暂不支持该能力的连接测试",
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detail=f"收到能力类型 {capability}",
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)
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latency_ms = round((time.perf_counter() - started) * 1000)
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if response.is_success:
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return ModelResourceTestResult(
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ok=True,
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latency_ms=latency_ms,
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message="连接成功",
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detail=f"接口响应正常（HTTP {response.status_code}）",
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)
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return ModelResourceTestResult(
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ok=False,
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latency_ms=latency_ms,
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message=f"连接失败（HTTP {response.status_code}）",
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detail=_error_detail(response, secrets),
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)
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except httpx.TimeoutException:
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return ModelResourceTestResult(
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ok=False,
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latency_ms=round((time.perf_counter() - started) * 1000),
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message="连接超时",
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detail=f"服务未在 {TEST_TIMEOUT_SECONDS:g} 秒内响应",
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)
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except httpx.RequestError as exc:
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return ModelResourceTestResult(
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ok=False,
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latency_ms=round((time.perf_counter() - started) * 1000),
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message="无法连接到模型服务",
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detail=str(exc)[:300],
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)
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async def _test_stepfun_realtime(
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values: dict, secrets: dict
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) -> ModelResourceTestResult:
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api_url = str(values.get("apiUrl") or "")
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model_id = str(values.get("modelId") or "")
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api_key = str(secrets.get("apiKey") or "")
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parts = urlsplit(api_url)
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query = dict(parse_qsl(parts.query))
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query["model"] = model_id
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url = urlunsplit(
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(parts.scheme, parts.netloc, parts.path, urlencode(query), parts.fragment)
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)
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started = time.perf_counter()
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try:
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async with websocket_connect(
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url,
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additional_headers={"Authorization": f"Bearer {api_key}"},
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open_timeout=TEST_TIMEOUT_SECONDS,
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close_timeout=2,
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) as websocket:
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raw_message = await asyncio.wait_for(
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websocket.recv(), timeout=TEST_TIMEOUT_SECONDS
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)
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event = json.loads(raw_message)
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if event.get("type") != "session.created":
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return ModelResourceTestResult(
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ok=False,
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latency_ms=round((time.perf_counter() - started) * 1000),
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message="Realtime 连接返回了意外事件",
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detail=str(event.get("type") or event)[:300],
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)
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return ModelResourceTestResult(
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ok=True,
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latency_ms=round((time.perf_counter() - started) * 1000),
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message="Realtime 连接成功",
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detail="StepFun 返回 session.created",
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)
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except TimeoutError:
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return ModelResourceTestResult(
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ok=False,
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latency_ms=round((time.perf_counter() - started) * 1000),
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message="Realtime 连接超时",
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detail=f"服务未在 {TEST_TIMEOUT_SECONDS:g} 秒内创建 session",
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)
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except Exception as exc:
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detail = str(exc)
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for secret in secrets.values():
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if secret:
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detail = detail.replace(str(secret), "***")
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return ModelResourceTestResult(
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ok=False,
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latency_ms=round((time.perf_counter() - started) * 1000),
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message="无法连接到 StepFun Realtime",
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detail=detail[:300],
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)
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