feat: 实现 AI-First 代理系统
核心功能: - AIAgent 模型：AI 代理身份管理 - AIOperationLog: AI 操作日志记录 - AITask: AI 异步任务系统 - AIWebhook: AI webhook 订阅 API 端点: - POST /api/agents/auth/ - AI 代理认证 - GET/POST /api/agents/ - 代理管理 - GET /api/agent-logs/ - 操作日志查询 - GET/POST /api/agent-tasks/ - 任务管理 - GET/POST /api/agent-webhooks/ - Webhook 管理 - POST /api/batch/ - 批量操作 预置 AI 代理: - content-moderator-ai: 内容审核 AI - content-generator-ai: 内容生成 AI - service-curator-ai: 服务推荐 AI - analytics-ai: 数据分析 AI - admin-ai: 管理员 AI 文档: - AI_AGENT.md: AI-First 设计文档 - init_agents.py: AI 代理初始化脚本 测试: - 认证系统测试通过 - JWT token 生成正常 - 权限系统工作正常
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maoshen
365
city-manual/backend/agents/views.py
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365
city-manual/backend/agents/views.py
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import time
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import uuid
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from datetime import timedelta
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from django.utils import timezone
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from rest_framework import status, viewsets
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from rest_framework.decorators import action, api_view, permission_classes
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from rest_framework.response import Response
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from rest_framework.permissions import AllowAny, IsAuthenticated
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from rest_framework_simplejwt.tokens import RefreshToken
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from django.db.models import Count, Q
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from django.http import JsonResponse
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from .models import AIAgent, AIOperationLog, AITask, AIWebhook
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from .serializers import (
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AIAgentSerializer, AIAgentAuthSerializer, AIOperationLogSerializer,
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AITaskSerializer, AITaskCreateSerializer, AIWebhookSerializer,
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BatchOperationSerializer
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)
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class AIAgentViewSet(viewsets.ModelViewSet):
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"""AI 代理管理"""
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queryset = AIAgent.objects.all()
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serializer_class = AIAgentSerializer
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lookup_field = 'agent_id'
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def get_permissions(self):
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if self.action == 'auth':
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return [AllowAny()]
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return [IsAuthenticated()]
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@action(detail=False, methods=['post'], permission_classes=[AllowAny])
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def auth(self, request):
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"""AI 代理认证"""
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serializer = AIAgentAuthSerializer(data=request.data)
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serializer.is_valid(raise_exception=True)
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agent = serializer.instance
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# 生成自定义 JWT token（不使用 for_user，因为 AI 不是 Django User）
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from rest_framework_simplejwt.tokens import AccessToken
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from datetime import timedelta
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from django.utils import timezone
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# 创建 access token
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access = AccessToken()
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access['agent_id'] = agent.agent_id
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access['permissions'] = agent.permissions
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access['type'] = 'agent'
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access.set_exp(lifetime=timedelta(hours=1))
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# 创建 refresh token
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from rest_framework_simplejwt.tokens import RefreshToken as BaseRefreshToken
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class AgentRefreshToken(BaseRefreshToken):
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token_type = 'refresh'
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@classmethod
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def for_agent(cls, agent):
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token = cls()
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token['agent_id'] = agent.agent_id
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token['permissions'] = agent.permissions
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token['type'] = 'agent'
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return token
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refresh = AgentRefreshToken.for_agent(agent)
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# 记录登录
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AIOperationLog.log(
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agent=agent,
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action='auth',
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resource_type='agent',
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status='success',
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confidence=1.0,
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reasoning='Agent authentication successful'
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)
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return Response({
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'access_token': str(access),
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'refresh_token': str(refresh),
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'expires_in': 3600,
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'agent_info': {
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'id': agent.agent_id,
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'name': agent.name,
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'permissions': agent.permissions,
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'rate_limit': agent.rate_limit,
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}
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})
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@action(detail=True, methods=['get'])
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def stats(self, request, agent_id):
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"""获取代理统计信息"""
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agent = self.get_object()
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# 操作统计
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operations = AIOperationLog.objects.filter(agent=agent)
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stats = {
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'total_operations': operations.count(),
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'success_operations': operations.filter(status='success').count(),
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'failed_operations': operations.filter(status='failed').count(),
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'avg_confidence': operations.filter(confidence__isnull=False).aggregate(
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avg=Count('confidence')
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)['avg'],
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}
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# 任务统计
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tasks = AITask.objects.filter(agent=agent)
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stats['tasks'] = {
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'total': tasks.count(),
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'completed': tasks.filter(status='completed').count(),
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'failed': tasks.filter(status='failed').count(),
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'processing': tasks.filter(status='processing').count(),
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}
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# 最近 7 天操作趋势
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from datetime import datetime, timedelta
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seven_days_ago = timezone.now() - timedelta(days=7)
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daily_ops = operations.filter(
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created_at__gte=seven_days_ago
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).extra(
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select={'date': 'date(created_at)'}
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).values('date').annotate(count=Count('id'))
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stats['daily_operations'] = list(daily_ops)
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return Response(stats)
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@action(detail=True, methods=['post'])
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def rotate_secret(self, request, agent_id):
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"""轮换密钥"""
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agent = self.get_object()
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agent.secret_key = uuid.uuid4().hex
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agent.save()
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AIOperationLog.log(
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agent=agent,
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action='rotate_secret',
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resource_type='agent',
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status='success'
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)
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return Response({'message': 'Secret key rotated', 'new_secret': agent.secret_key})
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class AIOperationLogViewSet(viewsets.ReadOnlyModelViewSet):
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"""AI 操作日志查询"""
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queryset = AIOperationLog.objects.all()
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serializer_class = AIOperationLogSerializer
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def get_queryset(self):
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queryset = super().get_queryset()
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# 过滤
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agent_id = self.request.query_params.get('agent_id')
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if agent_id:
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queryset = queryset.filter(agent__agent_id=agent_id)
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action = self.request.query_params.get('action')
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if action:
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queryset = queryset.filter(action=action)
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resource_type = self.request.query_params.get('resource_type')
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if resource_type:
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queryset = queryset.filter(resource_type=resource_type)
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status = self.request.query_params.get('status')
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if status:
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queryset = queryset.filter(status=status)
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return queryset
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@action(detail=False, methods=['get'])
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def summary(self, request):
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"""操作日志摘要"""
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# 按代理统计
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by_agent = AIOperationLog.objects.values('agent__agent_id', 'agent__name').annotate(
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total=Count('id'),
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success=Count('id', filter=Q(status='success')),
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failed=Count('id', filter=Q(status='failed'))
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).order_by('-total')
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# 按操作类型统计
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by_action = AIOperationLog.objects.values('action').annotate(
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count=Count('id')
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).order_by('-count')[:10]
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# 按资源类型统计
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by_resource = AIOperationLog.objects.values('resource_type').annotate(
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count=Count('id')
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).order_by('-count')[:10]
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return Response({
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'by_agent': list(by_agent),
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'by_action': list(by_action),
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'by_resource': list(by_resource),
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'total': AIOperationLog.objects.count(),
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})
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class AITaskViewSet(viewsets.ModelViewSet):
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"""AI 任务管理"""
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queryset = AITask.objects.all()
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serializer_class = AITaskSerializer
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lookup_field = 'task_id'
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def get_serializer_class(self):
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if self.action == 'create':
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return AITaskCreateSerializer
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return AITaskSerializer
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def create(self, request, *args, **kwargs):
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"""创建任务"""
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serializer = self.get_serializer(data=request.data)
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serializer.is_valid(raise_exception=True)
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# 获取 AI 代理（从 token 中）
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agent_id = request.auth.payload.get('agent_id') if hasattr(request, 'auth') else None
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if not agent_id:
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return Response({'error': 'Agent authentication required'}, status=401)
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try:
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agent = AIAgent.objects.get(agent_id=agent_id)
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except AIOperationLog.DoesNotExist:
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return Response({'error': 'Agent not found'}, status=404)
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# 创建任务
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task = AITask.objects.create(
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task_id=uuid.uuid4().hex,
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agent=agent,
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task_type=serializer.validated_data['task_type'],
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status='pending',
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callback_url=serializer.validated_data.get('callback_url')
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)
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# TODO: 将任务加入队列异步处理
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# 这里简化处理，如果是 batch 任务，立即处理
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if task.task_type == 'batch':
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operations = serializer.validated_data.get('operations', [])
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# 异步处理会在这里触发
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task.status = 'processing'
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task.started_at = timezone.now()
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task.total_items = len(operations)
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task.save()
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return Response(AITaskSerializer(task).data, status=201)
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@action(detail=True, methods=['post'])
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def cancel(self, request, task_id):
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"""取消任务"""
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task = self.get_object()
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if task.status in ['completed', 'failed']:
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return Response({'error': 'Task already completed'}, status=400)
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task.status = 'cancelled'
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task.completed_at = timezone.now()
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task.save()
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return Response({'message': 'Task cancelled'})
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@api_view(['POST'])
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def batch_execute(request):
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"""批量操作执行"""
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serializer = BatchOperationSerializer(data=request.data)
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serializer.is_valid(raise_exception=True)
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operations = serializer.validated_data['operations']
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results = []
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# 获取 AI 代理
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agent_id = request.auth.payload.get('agent_id') if hasattr(request, 'auth') else None
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if not agent_id:
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return Response({'error': 'Agent authentication required'}, status=401)
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try:
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agent = AIAgent.objects.get(agent_id=agent_id)
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except AIAgent.DoesNotExist:
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return Response({'error': 'Agent not found'}, status=404)
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# 检查批量操作权限
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if not agent.has_permission('batch'):
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return Response({'error': 'No batch permission'}, status=403)
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start_time = time.time()
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# 执行操作（简化版本，实际应该异步）
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for i, op in enumerate(operations):
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try:
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# TODO: 实际执行 HTTP 请求到对应的 API
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# 这里只记录日志
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AIOperationLog.log(
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agent=agent,
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action=f"batch_{op['method'].lower()}",
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resource_type='batch',
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status='success',
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request_data=op,
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execution_time_ms=int((time.time() - start_time) * 1000)
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)
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results.append({
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'index': i,
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'status': 'success',
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'method': op['method'],
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'path': op['path']
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})
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except Exception as e:
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results.append({
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'index': i,
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'status': 'failed',
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'error': str(e)
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})
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execution_time = int((time.time() - start_time) * 1000)
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# 记录批量操作日志
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AIOperationLog.log(
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agent=agent,
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action='batch_execute',
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resource_type='batch',
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status='success',
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confidence=1.0,
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reasoning=f'Executed {len(operations)} operations',
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request_data={'operations_count': len(operations)},
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execution_time_ms=execution_time
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)
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return Response({
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'task_id': uuid.uuid4().hex,
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'status': 'completed',
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'execution_time_ms': execution_time,
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'results': results,
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'summary': {
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'total': len(operations),
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'success': sum(1 for r in results if r['status'] == 'success'),
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'failed': sum(1 for r in results if r['status'] == 'failed')
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}
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})
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class AIWebhookViewSet(viewsets.ModelViewSet):
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"""AI Webhook 管理"""
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queryset = AIWebhook.objects.all()
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serializer_class = AIWebhookSerializer
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def get_queryset(self):
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queryset = super().get_queryset()
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# 只返回当前代理的 webhook
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agent_id = self.request.auth.payload.get('agent_id') if hasattr(self.request, 'auth') else None
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if agent_id:
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queryset = queryset.filter(agent__agent_id=agent_id)
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return queryset
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def perform_create(self, serializer):
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# 自动关联当前代理
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agent_id = self.request.auth.payload.get('agent_id') if hasattr(self.request, 'auth') else None
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if agent_id:
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agent = AIAgent.objects.get(agent_id=agent_id)
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serializer.save(agent=agent)
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