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refactor: 移除 Python 后端源码，全面迁移至 Rust gateway 架构
- 删除全部 Python 源码 (src/) 及 Alembic 迁移脚本，归档至 _deprecated_py_src/ - 重构 Rust gateway ai_pipeline: 拆分 planner/finalize 模块，新增 contracts/adaptation 层 - 重组 handlers 模块为 admin/public/proxy/internal/shared 子模块结构 - 新增 executor 模块，引入 Rust 原生数据库迁移 (aether-data/migrations) - 简化 CI/Docker 构建流程，移除 base image 二级构建，统一为单一 app image - 移除 Python 相关基础设施文件 (entrypoint.sh, gunicorn_conf.py, Dockerfile.base)
This commit is contained in:
fawney19
539
_deprecated_py_src/services/usage/lifecycle.py
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539
_deprecated_py_src/services/usage/lifecycle.py
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@@ -0,0 +1,539 @@
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from __future__ import annotations
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from datetime import datetime, timezone
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from typing import Any
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from sqlalchemy.orm import Session
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from src.core.logger import logger
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from src.models.database import ApiKey, Usage, User
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from src.services.billing.precision import to_money_decimal
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from src.services.provider_keys.codex_quota_sync_dispatcher import (
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dispatch_codex_quota_sync_from_response_headers,
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)
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from src.services.system.config import SystemConfigService
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from src.services.wallet import WalletService
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class UsageLifecycleMixin:
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"""使用记录生命周期管理方法"""
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@staticmethod
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def _is_billing_terminal(usage: Usage | None) -> bool:
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return bool(
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usage is not None and getattr(usage, "billing_status", None) in {"settled", "void"}
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)
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@classmethod
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def begin_pending_usage(
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cls,
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db: Session,
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request_id: str,
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user: User | None,
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api_key: ApiKey | None,
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model: str,
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*,
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is_stream: bool = False,
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request_type: str = "chat",
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api_format: str | None = None,
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request_headers: dict[str, Any] | None = None,
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request_body: Any | None = None,
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) -> Usage:
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"""
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创建（或返回已有）pending Usage 记录，但**不提交事务**。
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适用场景：
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- ApplicationService 在同一事务内创建 pending usage + task + candidates
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- submit 幂等：重复调用同一 request_id 时返回已有记录
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"""
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existing = db.query(Usage).filter(Usage.request_id == request_id).first()
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if existing:
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return existing
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# 根据配置决定是否记录请求详情
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should_log_headers = SystemConfigService.should_log_headers(db)
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should_log_body = SystemConfigService.should_log_body(db)
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# 处理请求头
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processed_request_headers = None
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if should_log_headers and request_headers is not None:
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processed_request_headers = SystemConfigService.mask_sensitive_headers(
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db, request_headers
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)
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# 处理请求体
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processed_request_body = None
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if should_log_body and request_body is not None:
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processed_request_body = SystemConfigService.truncate_body(
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db, request_body, is_request=True
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)
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usage = Usage(
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user_id=user.id if user else None,
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api_key_id=api_key.id if api_key else None,
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username=user.username if user else None,
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api_key_name=api_key.name if api_key else None,
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request_id=request_id,
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provider_name="pending", # 尚未确定 provider
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model=model,
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input_tokens=0,
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output_tokens=0,
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total_tokens=0,
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total_cost_usd=0.0,
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request_type=request_type,
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api_format=api_format,
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is_stream=is_stream,
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status="pending",
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billing_status="pending",
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request_headers=processed_request_headers,
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request_body=processed_request_body,
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)
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db.add(usage)
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db.flush()
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return usage
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@classmethod
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def create_pending_usage(
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cls,
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db: Session,
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request_id: str,
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user: User | None,
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api_key: ApiKey | None,
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model: str,
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is_stream: bool = False,
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request_type: str = "chat",
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api_format: str | None = None,
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request_headers: dict[str, Any] | None = None,
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request_body: Any | None = None,
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) -> Usage:
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"""
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创建 pending 状态的使用记录（在请求开始时调用）
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Args:
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db: 数据库会话
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request_id: 请求ID
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user: 用户对象
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api_key: API Key 对象
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model: 模型名称
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is_stream: 是否流式请求
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api_format: API 格式
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request_headers: 请求头
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request_body: 请求体
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Returns:
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创建的 Usage 记录
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"""
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usage = cls.begin_pending_usage(
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db,
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request_id=request_id,
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user=user,
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api_key=api_key,
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model=model,
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is_stream=is_stream,
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request_type=request_type,
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api_format=api_format,
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request_headers=request_headers,
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request_body=request_body,
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)
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db.commit()
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logger.debug("创建 pending 使用记录: request_id={}, model={}", request_id, model)
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return usage
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# ========== billing_status 并发幂等 finalize ==========
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@classmethod
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def finalize_settled(
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cls,
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db: Session,
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request_id: str,
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*,
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total_cost_usd: float,
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request_cost_usd: float | None = None,
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status: str = "completed",
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status_code: int = 200,
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error_message: str | None = None,
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response_time_ms: int | None = None,
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billing_snapshot: dict[str, Any] | None = None,
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extra_metadata: dict[str, Any] | None = None,
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finalized_at: datetime | None = None,
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) -> bool:
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"""
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并发安全的幂等 finalize（settled）。
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约定：
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- 仅当 billing_status='pending' 时才会生效（rowcount==1）
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- 不在本方法内 commit，由调用方决定事务提交时机
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"""
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now = finalized_at or datetime.now(timezone.utc)
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cost = to_money_decimal(total_cost_usd)
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request_cost = to_money_decimal(request_cost_usd) if request_cost_usd is not None else cost
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usage = db.query(Usage).filter(Usage.request_id == request_id).with_for_update().first()
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if not usage or usage.billing_status != "pending":
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return False
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usage.billing_status = "settled"
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usage.finalized_at = now
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usage.total_cost_usd = cost
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usage.request_cost_usd = request_cost
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usage.status = status
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usage.status_code = status_code
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usage.error_message = error_message
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usage.response_time_ms = response_time_ms
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if cost > 0:
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WalletService.apply_usage_charge(db, usage=usage, amount_usd=cost)
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# 写入审计快照（只在本次 finalize 生效时执行）
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metadata = usage.request_metadata or {}
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if billing_snapshot is not None:
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metadata["billing_snapshot"] = billing_snapshot
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if extra_metadata:
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metadata.update(extra_metadata)
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usage.request_metadata = cls._sanitize_request_metadata(metadata)
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return True
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@classmethod
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def finalize_void(
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cls,
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db: Session,
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request_id: str,
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*,
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reason: str | None = None,
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status_code: int = 499,
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finalized_at: datetime | None = None,
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) -> bool:
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"""
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并发安全的幂等 finalize（void，不收费）。
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约定：
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- 仅当 billing_status='pending' 时才会生效（rowcount==1）
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- 不在本方法内 commit，由调用方决定事务提交时机
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"""
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now = finalized_at or datetime.now(timezone.utc)
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usage = db.query(Usage).filter(Usage.request_id == request_id).with_for_update().first()
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if not usage or usage.billing_status != "pending":
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return False
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usage.billing_status = "void"
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usage.finalized_at = now
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usage.total_cost_usd = to_money_decimal(0)
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usage.request_cost_usd = to_money_decimal(0)
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usage.actual_total_cost_usd = to_money_decimal(0)
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usage.actual_request_cost_usd = to_money_decimal(0)
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usage.status = "cancelled"
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usage.status_code = status_code
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usage.error_message = reason
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usage.response_time_ms = None
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return True
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@classmethod
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def finalize_submitted(
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cls,
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db: Session,
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request_id: str,
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*,
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provider_name: str,
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provider_id: str | None = None,
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provider_endpoint_id: str | None = None,
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provider_api_key_id: str | None = None,
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response_time_ms: int | None = None,
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status_code: int = 200,
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endpoint_api_format: str | None = None,
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provider_request_headers: dict[str, Any] | None = None,
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response_headers: dict[str, Any] | None = None,
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response_body: Any | None = None,
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) -> bool:
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"""
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异步任务提交成功时的幂等结算。
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将 pending 使用记录保留为 pending，仅补齐已知的 provider/响应信息。
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后续轮询完成后通过 update_settled_billing 一次性写入实际费用并扣钱包。
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约定：
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- 仅当 billing_status='pending' 时才会生效（rowcount==1）
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- 不在本方法内 commit，由调用方决定事务提交时机
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"""
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# 处理响应头和响应体
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should_log_headers = SystemConfigService.should_log_headers(db)
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should_log_body = SystemConfigService.should_log_body(db)
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processed_provider_headers = None
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if should_log_headers and provider_request_headers is not None:
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processed_provider_headers = SystemConfigService.mask_sensitive_headers(
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db, provider_request_headers
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)
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processed_response_headers = None
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if should_log_headers and response_headers is not None:
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processed_response_headers = dict(response_headers)
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processed_response_body = None
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if should_log_body and response_body is not None:
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processed_response_body = SystemConfigService.truncate_body(
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db, response_body, is_request=False
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)
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values: dict[str, Any] = {
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"status": "pending",
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"status_code": status_code,
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"response_time_ms": response_time_ms,
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"provider_name": provider_name,
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"provider_id": provider_id,
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"provider_endpoint_id": provider_endpoint_id,
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"provider_api_key_id": provider_api_key_id,
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"endpoint_api_format": endpoint_api_format,
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}
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if processed_provider_headers is not None:
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values["provider_request_headers"] = processed_provider_headers
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if processed_response_headers is not None:
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values["response_headers"] = processed_response_headers
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if processed_response_body is not None:
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values["response_body"] = processed_response_body
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usage = db.query(Usage).filter(Usage.request_id == request_id).with_for_update().first()
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if not usage or usage.billing_status != "pending":
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return False
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for key, value in values.items():
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setattr(usage, key, value)
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finalized = True
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if finalized:
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dispatch_codex_quota_sync_from_response_headers(
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provider_api_key_id=provider_api_key_id,
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response_headers=response_headers,
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db=db,
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)
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return finalized
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@classmethod
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def update_settled_billing(
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cls,
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db: Session,
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request_id: str,
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*,
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total_cost_usd: float,
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request_cost_usd: float | None = None,
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status: str = "completed",
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status_code: int = 200,
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error_message: str | None = None,
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response_time_ms: int | None = None,
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billing_snapshot: dict[str, Any] | None = None,
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extra_metadata: dict[str, Any] | None = None,
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finalized_at: datetime | None = None,
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) -> bool:
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"""
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写入异步任务最终账单（轮询完成后调用）。
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语义：
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- 仅允许 pending -> settled / void（首次最终结算）
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- settled / void 一旦进入即不可再修改
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约定：
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- 不在本方法内 commit，由调用方决定事务提交时机
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"""
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now = finalized_at or datetime.now(timezone.utc)
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cost = to_money_decimal(total_cost_usd)
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request_cost = to_money_decimal(request_cost_usd) if request_cost_usd is not None else cost
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usage = db.query(Usage).filter(Usage.request_id == request_id).with_for_update().first()
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if not usage or usage.billing_status != "pending":
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return False
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usage.total_cost_usd = cost
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usage.request_cost_usd = request_cost
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usage.status = status
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usage.status_code = status_code
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if error_message is not None:
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usage.error_message = error_message
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if response_time_ms is not None:
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usage.response_time_ms = response_time_ms
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usage.finalized_at = now
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if cost > 0:
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usage.billing_status = "settled"
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WalletService.apply_usage_charge(db, usage=usage, amount_usd=cost)
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else:
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usage.billing_status = "void" if status in {"failed", "cancelled"} else "settled"
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# 写入审计快照
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metadata = usage.request_metadata or {}
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if billing_snapshot is not None:
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metadata["billing_snapshot"] = billing_snapshot
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if extra_metadata:
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metadata.update(extra_metadata)
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metadata["billing_updated_at"] = now.isoformat()
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usage.request_metadata = cls._sanitize_request_metadata(metadata)
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return True
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@classmethod
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def void_settled(
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cls,
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db: Session,
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request_id: str,
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||||
*,
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reason: str | None = None,
|
||||
status_code: int = 499,
|
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) -> bool:
|
||||
"""
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已废弃：settled 为账务终态，不允许再回滚为 void。
|
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"""
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logger.warning(
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||||
"void_settled is deprecated and ignored: request_id={}, reason={}, status_code={}",
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||||
request_id,
|
||||
reason,
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||||
status_code,
|
||||
)
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||||
return False
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||||
|
||||
@classmethod
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def update_usage_status(
|
||||
cls,
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||||
db: Session,
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||||
request_id: str,
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||||
status: str,
|
||||
error_message: str | None = None,
|
||||
provider: str | None = None,
|
||||
target_model: str | None = None,
|
||||
first_byte_time_ms: int | None = None,
|
||||
provider_id: str | None = None,
|
||||
provider_endpoint_id: str | None = None,
|
||||
provider_api_key_id: str | None = None,
|
||||
api_format: str | None = None,
|
||||
endpoint_api_format: str | None = None,
|
||||
has_format_conversion: bool | None = None,
|
||||
status_code: int | None = None,
|
||||
request_headers: dict[str, Any] | None = None,
|
||||
request_body: Any | None = None,
|
||||
provider_request_headers: dict[str, Any] | None = None,
|
||||
provider_request_body: Any | None = None,
|
||||
) -> Usage | None:
|
||||
"""
|
||||
快速更新使用记录状态
|
||||
|
||||
Args:
|
||||
db: 数据库会话
|
||||
request_id: 请求ID
|
||||
status: 新状态 (pending, streaming, completed, failed)
|
||||
error_message: 错误消息（仅在 failed 状态时使用）
|
||||
provider: 提供商名称（可选，streaming 状态时更新）
|
||||
target_model: 映射后的目标模型名（可选）
|
||||
first_byte_time_ms: 首字时间/TTFB（可选，streaming 状态时更新）
|
||||
provider_id: Provider ID（可选，streaming 状态时更新）
|
||||
provider_endpoint_id: Endpoint ID（可选，streaming 状态时更新）
|
||||
provider_api_key_id: Provider API Key ID（可选，streaming 状态时更新）
|
||||
api_format: API 格式（可选，用于获取按格式配置的倍率）
|
||||
endpoint_api_format: 端点原生 API 格式（可选）
|
||||
has_format_conversion: 是否发生了格式转换（可选）
|
||||
status_code: HTTP 状态码（可选）
|
||||
request_headers: 客户端请求头（可选，用于补写 pending/streaming 记录）
|
||||
request_body: 客户端请求体（可选，用于补写 pending/streaming 记录）
|
||||
provider_request_headers: 提供商请求头（可选，streaming 时可写入）
|
||||
provider_request_body: 提供商请求体（可选，streaming 时可写入）
|
||||
|
||||
Returns:
|
||||
更新后的 Usage 记录，如果未找到则返回 None
|
||||
"""
|
||||
usage = db.query(Usage).filter(Usage.request_id == request_id).first()
|
||||
if not usage:
|
||||
logger.warning("未找到 request_id={} 的使用记录，无法更新状态", request_id)
|
||||
return None
|
||||
|
||||
if cls._is_billing_terminal(usage):
|
||||
logger.debug(
|
||||
"跳过已终态 Usage 状态更新: request_id={}, status={}, billing_status={}",
|
||||
request_id,
|
||||
status,
|
||||
getattr(usage, "billing_status", None),
|
||||
)
|
||||
return usage
|
||||
|
||||
# 避免状态回退：streaming 只能从 pending/streaming 进入
|
||||
if status == "streaming" and usage.status not in ("pending", "streaming"):
|
||||
logger.debug(
|
||||
f"跳过 streaming 状态更新（避免回退）: request_id={request_id}, "
|
||||
f"{usage.status} -> {status}"
|
||||
)
|
||||
return usage
|
||||
|
||||
old_status = usage.status
|
||||
usage.status = status
|
||||
if error_message:
|
||||
usage.error_message = error_message
|
||||
if provider:
|
||||
usage.provider_name = provider
|
||||
elif status == "streaming" and usage.provider_name == "pending":
|
||||
# 状态变为 streaming 但 provider_name 仍为 pending，记录警告
|
||||
logger.warning(
|
||||
f"状态更新为 streaming 但 provider_name 为空: request_id={request_id}, "
|
||||
f"当前 provider_name={usage.provider_name}"
|
||||
)
|
||||
if target_model:
|
||||
usage.target_model = target_model
|
||||
if first_byte_time_ms is not None:
|
||||
usage.first_byte_time_ms = first_byte_time_ms
|
||||
if provider_id is not None:
|
||||
usage.provider_id = provider_id
|
||||
if provider_endpoint_id is not None:
|
||||
usage.provider_endpoint_id = provider_endpoint_id
|
||||
if provider_api_key_id is not None:
|
||||
usage.provider_api_key_id = provider_api_key_id
|
||||
# 当设置 provider_api_key_id 时，同步获取并更新 rate_multiplier
|
||||
# 这样前端在 streaming 状态就能显示倍率
|
||||
rate_multiplier = cls._get_rate_multiplier_sync(
|
||||
db, provider_api_key_id, api_format or usage.api_format
|
||||
)
|
||||
if rate_multiplier is not None:
|
||||
usage.rate_multiplier = rate_multiplier
|
||||
if endpoint_api_format is not None:
|
||||
usage.endpoint_api_format = endpoint_api_format
|
||||
if has_format_conversion is not None:
|
||||
usage.has_format_conversion = has_format_conversion
|
||||
if status_code is not None:
|
||||
usage.status_code = status_code
|
||||
|
||||
should_log_headers = SystemConfigService.should_log_headers(db)
|
||||
should_log_body = SystemConfigService.should_log_body(db)
|
||||
|
||||
if should_log_headers:
|
||||
if isinstance(request_headers, dict):
|
||||
usage.request_headers = SystemConfigService.mask_sensitive_headers(
|
||||
db, request_headers
|
||||
)
|
||||
if isinstance(provider_request_headers, dict):
|
||||
usage.provider_request_headers = SystemConfigService.mask_sensitive_headers(
|
||||
db, provider_request_headers
|
||||
)
|
||||
if should_log_body:
|
||||
if request_body is not None:
|
||||
usage.request_body = SystemConfigService.truncate_body(
|
||||
db, request_body, is_request=True
|
||||
)
|
||||
if provider_request_body is not None:
|
||||
usage.provider_request_body = SystemConfigService.truncate_body(
|
||||
db, provider_request_body, is_request=True
|
||||
)
|
||||
|
||||
# 仅在“明确不会收费”的终态下直接关闭账单。
|
||||
# completed 的费用通常要由后续 record_usage / update_settled_billing 写入，
|
||||
# 这里不能提前把 billing_status 置为 settled，否则会阻断真正扣费。
|
||||
if (
|
||||
status in ("failed", "cancelled")
|
||||
and getattr(usage, "billing_status", None) == "pending"
|
||||
):
|
||||
usage.billing_status = "void"
|
||||
if getattr(usage, "finalized_at", None) is None:
|
||||
usage.finalized_at = datetime.now(timezone.utc)
|
||||
usage.total_cost_usd = to_money_decimal(0)
|
||||
usage.request_cost_usd = to_money_decimal(0)
|
||||
usage.actual_total_cost_usd = to_money_decimal(0)
|
||||
usage.actual_request_cost_usd = to_money_decimal(0)
|
||||
|
||||
db.commit()
|
||||
|
||||
logger.debug("更新使用记录状态: request_id={}, {} -> {}", request_id, old_status, status)
|
||||
|
||||
return usage
|
||||
Reference in New Issue
Block a user