Jony
1941357ae4
- 新增 K3VideoFirstLast 节点（首尾帧 K3 自研）：基于 K3Video 去掉分镜，新增可选尾帧输入，尾帧通过 metadata.image_tail 传递 - nano_banana_pro / batch_nano_banana_pro：将参数「代理加速」重命名为「代理端口（如7897）」 - gemini_client：新增 build_proxy_url、_estimate_body_size、_scale_images_to_fit 工具方法 - base_client：小幅优化
537 lines
18 KiB
Python
537 lines
18 KiB
Python
"""
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API 客户端基类
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提供通用的 HTTP 请求、响应解析和错误处理功能
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"""
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import asyncio
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import json
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import threading
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from abc import ABC, abstractmethod
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from typing import Any, Callable, Dict, List, Optional
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import os
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import time
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import aiohttp
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class BaseAPIClient(ABC):
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"""
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API 客户端抽象基类
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子类需要实现以下方法：
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- get_endpoint(): 获取 API 端点
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- build_request_body(): 构建请求体
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- parse_response(): 解析响应
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"""
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def __init__(
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self,
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base_url: str,
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api_key: str,
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max_request_size: int = 100 * 1024 * 1024
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):
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"""
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初始化客户端
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Args:
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base_url: API 基础 URL
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api_key: API 密钥
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max_request_size: 最大请求体大小（字节），默认 100MB
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"""
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self.base_url = base_url
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self.api_key = api_key
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self.max_request_size = max_request_size
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self.proxy_url: Optional[str] = None # 由节点在调用前注入，如 "http://127.0.0.1:7897"
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@abstractmethod
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def get_endpoint(self, **kwargs) -> str:
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"""
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获取 API 端点路径
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Args:
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**kwargs: 额外参数（如模型名、分辨率等）
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Returns:
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端点路径字符串
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"""
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pass
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@abstractmethod
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def build_request_body(self, **kwargs) -> Dict[str, Any]:
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"""
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构建 API 请求体
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Args:
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**kwargs: 请求参数
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Returns:
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请求体字典
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"""
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pass
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@abstractmethod
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def parse_response(self, response: Dict[str, Any]) -> Any:
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"""
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解析 API 响应
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Args:
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response: API 响应字典
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Returns:
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解析后的结果
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"""
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pass
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def _make_session(self) -> aiohttp.ClientSession:
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"""
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创建统一的 aiohttp ClientSession，全局禁用 SSL 验证。
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所有需要独立创建 session 的地方都应调用此方法，
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避免因客户端系统缺少根证书导致 SSLCertVerificationError。
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"""
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connector = aiohttp.TCPConnector(ssl=False, limit=0, limit_per_host=0)
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return aiohttp.ClientSession(connector=connector, trust_env=False)
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def get_headers(self, use_bearer_token: bool = False) -> Dict[str, str]:
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"""
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获取请求头
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Args:
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use_bearer_token: 是否使用 Bearer Token 认证（默认为 False）
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Returns:
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请求头字典
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"""
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if use_bearer_token:
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return {
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"Authorization": f"Bearer {self.api_key}",
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"Content-Type": "application/json"
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}
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else:
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return {
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"x-goog-api-key": self.api_key,
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"Content-Type": "application/json"
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}
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def check_request_size(self, request_body: Dict[str, Any]) -> None:
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"""
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检查请求体大小是否超过限制
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Args:
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request_body: 请求体字典
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Raises:
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ValueError: 如果请求体超过限制
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"""
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request_json = json.dumps(request_body)
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request_size = len(request_json.encode('utf-8'))
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if request_size > self.max_request_size:
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raise ValueError(
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"请求体积超过100MB限制，请调整分辨率或减少图片数量"
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)
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def get_http_error_message(self, status_code: int, error_message: str) -> Optional[str]:
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"""
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子类可重写：为指定 HTTP 状态码返回自定义错误文案。
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若返回 None，则使用基类默认拼接文案。
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Args:
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status_code: HTTP 状态码（如 429、503）
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error_message: API 返回的原始错误信息
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Returns:
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自定义完整错误文案，或 None 表示使用默认
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"""
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return None
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async def request_async(
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self,
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endpoint: str,
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request_body: Dict[str, Any],
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session: Optional[aiohttp.ClientSession] = None,
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use_bearer_token: bool = False,
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timeout: Optional[int] = None
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) -> Dict[str, Any]:
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"""
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发送异步 HTTP 请求（带详细计时）
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Args:
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endpoint: API 端点
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request_body: 请求体
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session: aiohttp 会话（可选）
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use_bearer_token: 是否使用 Bearer Token 认证
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timeout: 超时时间（秒），默认 900 秒
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Returns:
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响应 JSON
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Raises:
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RuntimeError: 请求失败时
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InterruptProcessingException: 用户点击终止按钮时
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"""
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import time
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# 尝试导入 ComfyUI 中断机制
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try:
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from comfy.model_management import processing_interrupted, InterruptProcessingException
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_interrupt_available = True
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except ImportError:
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_interrupt_available = False
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url = f"{self.base_url}{endpoint}"
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headers = self.get_headers(use_bearer_token)
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# 检查请求大小
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self.check_request_size(request_body)
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close_session = False
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if session is None:
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session = self._make_session()
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close_session = True
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# 设置请求超时：连接超时 30s，读取超时 900s（防止服务器出图后卡住）
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_timeout_seconds = timeout if timeout is not None else 900
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_aiohttp_timeout = aiohttp.ClientTimeout(
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total=_timeout_seconds,
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connect=30,
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sock_read=_timeout_seconds
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)
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async def _do_request():
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connect_start = time.time()
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async with session.post(url, json=request_body, headers=headers, timeout=_aiohttp_timeout, proxy=self.proxy_url) as response:
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connect_time = time.time() - connect_start
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if response.status != 200:
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error_text = await response.text()
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raise RuntimeError(error_text)
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wait_start = time.time()
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response_data = await response.json()
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download_time = time.time() - wait_start
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response_size = len(str(response_data))
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if not isinstance(response_data, dict):
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response_data = {"data": response_data}
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response_data["_timing"] = {
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"connect_time": connect_time,
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"download_time": download_time,
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"response_size": response_size
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}
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return response_data
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async def _poll_interrupt():
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"""每 0.5s 轮询一次中断标志"""
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while True:
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await asyncio.sleep(0.5)
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if processing_interrupted():
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return
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try:
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if _interrupt_available:
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request_task = asyncio.ensure_future(_do_request())
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interrupt_task = asyncio.ensure_future(_poll_interrupt())
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done, pending = await asyncio.wait(
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[request_task, interrupt_task],
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return_when=asyncio.FIRST_COMPLETED
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)
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# 取消未完成的任务
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for t in pending:
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t.cancel()
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try:
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await t
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except (asyncio.CancelledError, Exception):
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pass
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# 判断是哪个先完成
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if interrupt_task in done and request_task not in done:
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raise InterruptProcessingException()
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# 请求完成，取出结果（可能含异常）
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return request_task.result()
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else:
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return await _do_request()
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except InterruptProcessingException:
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raise
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except aiohttp.ServerTimeoutError as e:
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raise RuntimeError(
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f"请求超时！等待服务器响应超过 {_timeout_seconds} 秒。\n"
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f"服务器可能仍在生成图片，请稍后重试，或检查网络连接。"
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) from e
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except aiohttp.ClientConnectorError as e:
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raise RuntimeError(
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f"无法连接到服务器：{str(e)}\n"
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f"请检查网络连接是否正常。"
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) from e
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except asyncio.TimeoutError as e:
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raise RuntimeError(
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f"请求超时！等待服务器响应超过 {_timeout_seconds} 秒。\n"
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f"服务器可能仍在生成图片，请稍后重试，或检查网络连接。"
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) from e
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finally:
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if close_session:
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await session.close()
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async def request_get_async(
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self,
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endpoint: str,
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session: Optional[aiohttp.ClientSession] = None,
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use_bearer_token: bool = True,
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timeout: Optional[int] = None
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) -> Dict[str, Any]:
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"""
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发送异步 HTTP GET 请求
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Args:
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endpoint: API 端点
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session: aiohttp 会话（可选）
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use_bearer_token: 是否使用 Bearer Token 认证（默认为 True）
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timeout: 超时时间（秒）- 已废弃，由服务器端控制
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Returns:
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响应 JSON
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Raises:
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RuntimeError: 请求失败时
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"""
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url = f"{self.base_url}{endpoint}"
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headers = self.get_headers(use_bearer_token)
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close_session = False
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if session is None:
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session = self._make_session()
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close_session = True
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try:
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_get_start = time.time()
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async with session.get(url, headers=headers) as response:
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_get_elapsed = time.time() - _get_start
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if response.status != 200:
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error_text = await response.text()
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# 尝试解析 JSON 错误信息，提取关键内容
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error_message = error_text
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try:
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error_json = json.loads(error_text)
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# 尝试从多个常见位置提取错误信息
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if "error" in error_json:
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if isinstance(error_json["error"], dict):
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error_message = error_json["error"].get("message", error_text)
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else:
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error_message = str(error_json["error"])
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elif "message" in error_json:
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error_message = error_json["message"]
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except:
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# 如果不是 JSON，使用原始文本
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pass
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# 针对常见错误状态码提供友好提示
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if response.status == 400:
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raise RuntimeError(
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f"请求参数错误 (400 Bad Request)\n"
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f"API 返回错误：{error_message}\n"
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f"建议：检查请求参数"
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)
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elif response.status == 401:
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raise RuntimeError(
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f"认证失败 (401 Unauthorized)\n"
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f"API 返回错误：{error_message}\n"
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f"建议：检查 API 密钥"
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)
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elif response.status == 429:
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custom = self.get_http_error_message(429, error_message)
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if custom is not None:
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raise RuntimeError(custom)
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raise RuntimeError(
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f"请求频率超限 (429 Too Many Requests)\n"
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f"API 返回错误：{error_message}\n"
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f"建议：等待一段时间后重试"
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)
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elif response.status == 503:
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custom = self.get_http_error_message(503, error_message)
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if custom is not None:
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raise RuntimeError(custom)
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raise RuntimeError(
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f"服务暂时不可用 (503 Service Unavailable)\n"
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f"API 返回错误：{error_message}\n"
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f"建议：稍后重试"
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)
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elif response.status == 504:
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raise RuntimeError(
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f"API 请求超时 (504 Gateway Timeout)\n"
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f"API 返回错误：{error_message}\n"
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f"建议：稍后重试"
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)
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elif response.status == 502:
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raise RuntimeError(
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"糟糕！请求到上游时遇到超时或过载！别担心，过会儿再次点击运行即可！"
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)
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else:
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raise RuntimeError(
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f"API 请求失败 (状态码: {response.status})\n"
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f"API 返回错误：{error_message}"
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)
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_resp_data = await response.json()
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return _resp_data
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finally:
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if close_session:
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await session.close()
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async def batch_request_async(
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self,
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requests: List[Dict[str, Any]],
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progress_callback: Optional[Callable[[int, int], None]] = None
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) -> List[Any]:
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"""
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批量并发请求
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Args:
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requests: 请求列表，每个元素包含 endpoint 和 request_body
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progress_callback: 进度回调函数 (current, total)
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Returns:
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响应结果列表
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"""
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results = []
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completed = 0
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total = len(requests)
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# 创建无限制的连接器
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async with self._make_session() as session:
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tasks = []
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for req in requests:
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task = self.request_async(
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endpoint=req['endpoint'],
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request_body=req['request_body'],
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session=session
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)
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tasks.append(task)
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# 并发执行
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responses = await asyncio.gather(*tasks, return_exceptions=True)
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for i, resp in enumerate(responses):
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if isinstance(resp, Exception):
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print(f"⚠️ 第 {i+1} 个请求失败: {str(resp)}")
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continue
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try:
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parsed = self.parse_response(resp)
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results.append(parsed)
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completed += 1
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if progress_callback:
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progress_callback(completed, total)
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except Exception as e:
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print(f"⚠️ 第 {i+1} 个响应解析失败: {str(e)}")
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return results
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def run_async_in_thread(self, coro) -> Any:
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"""
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在独立线程中运行异步代码（用于 ComfyUI 同步接口）
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Args:
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coro: 协程对象
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Returns:
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协程执行结果
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"""
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result_container = []
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error_container = []
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def run_in_thread():
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try:
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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try:
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result = loop.run_until_complete(coro)
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result_container.append(result)
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finally:
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loop.close()
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except Exception as e:
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error_container.append(e)
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thread = threading.Thread(target=run_in_thread)
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thread.start()
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thread.join()
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if error_container:
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raise error_container[0]
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if not result_container:
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raise RuntimeError("异步任务未返回结果")
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return result_container[0]
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async def query_balance_async(self) -> Dict[str, Any]:
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"""
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异步查询账户余额
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Returns:
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余额信息字典，包含 name、total_available 等字段
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Raises:
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RuntimeError: 查询失败时
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"""
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endpoint = "/api/usage/token"
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response = await self.request_get_async(endpoint, use_bearer_token=True)
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if not response.get("code"):
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raise RuntimeError("余额查询响应格式错误")
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data = response.get("data", {})
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return data
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def query_balance_sync(self) -> Dict[str, Any]:
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"""
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同步查询账户余额（用于 ComfyUI 节点）
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Returns:
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余额信息字典
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Raises:
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RuntimeError: 查询失败时
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"""
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coro = self.query_balance_async()
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return self.run_async_in_thread(coro)
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def format_balance_info(self, balance_data: Dict[str, Any]) -> str:
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"""
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格式化余额信息为展示文本
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Args:
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balance_data: 余额信息字典
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Returns:
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格式化文本，如 "当前余额：100.00 | API：xxx"
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|
||
Example:
|
||
>>> data = {"name": "test-api", "total_available": 50000000}
|
||
>>> client.format_balance_info(data)
|
||
'当前余额：100.00 | API：test-api'
|
||
"""
|
||
api_name = balance_data.get("name", "未知")
|
||
total_available = balance_data.get("total_available", 0)
|
||
|
||
# 实际显示余额 = total_available / 500000，单位：美元
|
||
balance_in_dollars = total_available / 500000
|
||
|
||
return f"当前余额：{balance_in_dollars:.2f} | API：{api_name}"
|