feat: 完善代理商端业务逻辑与前后端框架

主要更新:
- 更新代理商端文档,明确项目由品牌方分配流程
- 新增Brief配置详情页(已配置)设计稿
- 完善工作台紧急待办中品牌新任务功能
- 整理Pencil设计文件中代理商端页面顺序
- 新增后端FastAPI框架及核心API
- 新增前端Next.js页面和组件库
- 添加.gitignore排除构建和缓存文件

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Your Name
2026-02-05 19:27:31 +08:00
co-authored by Claude Opus 4.5
parent d52509d630
commit e4959d584f
132 changed files with 58539 additions and 21353 deletions
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"""秒思智能审核平台后端服务"""
__version__ = "1.0.0"
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"""API 路由模块"""
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"""
AI 服务配置 API
品牌方管理 AI 提供商配置、模型选择、连通性测试
"""
import asyncio
from datetime import datetime, timezone
from typing import Optional
from fastapi import APIRouter, Depends, HTTPException, Header, status
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.models.ai_config import AIConfig
from app.models.tenant import Tenant
from app.schemas.ai_config import (
AIProvider,
AIConfigUpdate,
AIConfigResponse,
AIModelsConfig,
AIParametersConfig,
GetModelsRequest,
TestConnectionRequest,
ModelsListResponse,
ConnectionTestResponse,
ModelTestResult,
ModelInfo,
ModelCapability,
mask_api_key,
)
from app.services.ai_client import OpenAICompatibleClient
from app.services.ai_service import AIServiceFactory
from app.utils.crypto import encrypt_api_key, decrypt_api_key
router = APIRouter(prefix="/ai-config", tags=["ai-config"])
async def _ensure_tenant_exists(tenant_id: str, db: AsyncSession) -> Tenant:
"""确保租户存在,不存在则自动创建"""
result = await db.execute(
select(Tenant).where(Tenant.id == tenant_id)
)
tenant = result.scalar_one_or_none()
if not tenant:
tenant = Tenant(id=tenant_id, name=f"租户-{tenant_id}")
db.add(tenant)
await db.flush()
return tenant
@router.get("", response_model=AIConfigResponse)
async def get_ai_config(
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> AIConfigResponse:
"""
获取当前 AI 配置
- 未配置返回 404
- 已配置返回配置信息(API Key 脱敏)
"""
result = await db.execute(
select(AIConfig).where(
AIConfig.tenant_id == x_tenant_id,
AIConfig.is_configured == True,
)
)
config = result.scalar_one_or_none()
if not config:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail="AI 服务未配置,请先完成配置",
)
# 解密 API Key 用于脱敏显示
api_key = decrypt_api_key(config.api_key_encrypted)
return AIConfigResponse(
provider=config.provider,
base_url=config.base_url,
api_key_masked=mask_api_key(api_key),
models=AIModelsConfig(**config.models),
parameters=AIParametersConfig(
temperature=config.temperature,
max_tokens=config.max_tokens,
),
available_models=config.available_models or {},
is_configured=config.is_configured,
last_test_at=config.last_test_at.isoformat() if config.last_test_at else None,
last_test_result=config.last_test_result,
)
@router.put("", response_model=AIConfigResponse)
async def update_ai_config(
request: AIConfigUpdate,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> AIConfigResponse:
"""
更新 AI 配置
- 保存提供商、连接信息、模型配置
- API Key 加密存储
"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
# 加密 API Key
api_key_encrypted = encrypt_api_key(request.api_key)
# 创建或更新配置
config = await AIServiceFactory.create_or_update_config(
tenant_id=x_tenant_id,
provider=request.provider.value,
base_url=request.base_url,
api_key_encrypted=api_key_encrypted,
models=request.models.model_dump(),
temperature=request.parameters.temperature,
max_tokens=request.parameters.max_tokens,
db=db,
)
return AIConfigResponse(
provider=config.provider,
base_url=config.base_url,
api_key_masked=mask_api_key(request.api_key),
models=AIModelsConfig(**config.models),
parameters=AIParametersConfig(
temperature=config.temperature,
max_tokens=config.max_tokens,
),
available_models=config.available_models or {},
is_configured=True,
last_test_at=config.last_test_at.isoformat() if config.last_test_at else None,
last_test_result=config.last_test_result,
)
@router.post("/models", response_model=ModelsListResponse)
async def get_available_models(
request: GetModelsRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> ModelsListResponse:
"""
获取可用模型列表
- 调用提供商 API 获取模型列表
- 按能力分类(text/vision/audio
"""
try:
client = OpenAICompatibleClient(
base_url=request.base_url,
api_key=request.api_key,
provider=request.provider.value,
)
models_dict = await client.list_models()
await client.close()
# 转换为 ModelInfo 对象
models = {
k: [ModelInfo(**m) for m in v]
for k, v in models_dict.items()
}
# 更新配置中的可用模型缓存
result = await db.execute(
select(AIConfig).where(AIConfig.tenant_id == x_tenant_id)
)
config = result.scalar_one_or_none()
if config:
config.available_models = models_dict
await db.flush()
return ModelsListResponse(
success=True,
models=models,
)
except Exception as e:
raise HTTPException(
status_code=status.HTTP_502_BAD_GATEWAY,
detail=f"获取模型列表失败: {str(e)}",
)
@router.post("/test", response_model=ConnectionTestResponse)
async def test_connection(
request: TestConnectionRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> ConnectionTestResponse:
"""
测试 AI 服务连接
- 并行测试三个模型
- 返回每个模型的测试结果
"""
client = None
models = request.models.model_dump()
try:
client = OpenAICompatibleClient(
base_url=request.base_url,
api_key=request.api_key,
provider=request.provider.value,
)
# 定义模型能力映射
capability_map = {
"text": ModelCapability.TEXT,
"vision": ModelCapability.VISION,
"audio": ModelCapability.AUDIO,
}
async def test_single(model_type: str, model_id: str) -> tuple[str, ModelTestResult]:
capability = capability_map.get(model_type, ModelCapability.TEXT)
result = await client.test_connection(model_id, capability)
return model_type, ModelTestResult(
success=result.success,
latency_ms=result.latency_ms,
error=result.error,
model=model_id,
)
# 并行测试所有模型
tasks = [
test_single(model_type, model_id)
for model_type, model_id in models.items()
]
results_list = await asyncio.gather(*tasks)
results = {model_type: result for model_type, result in results_list}
# 计算测试结果
all_success = all(r.success for r in results.values())
failed_count = sum(1 for r in results.values() if not r.success)
if all_success:
message = "所有模型连接成功"
else:
message = f"{failed_count} 个模型连接失败,请检查模型名称或 API 权限"
response = ConnectionTestResponse(
success=all_success,
results=results,
message=message,
)
except Exception as exc:
# 确保接口返回 200,并返回失败详情
results = {
model_type: ModelTestResult(
success=False,
latency_ms=0,
error=str(exc),
model=model_id,
)
for model_type, model_id in models.items()
}
response = ConnectionTestResponse(
success=False,
results=results,
message=f"连接测试失败: {str(exc)}",
)
finally:
if client is not None:
try:
await client.close()
except Exception:
pass
# 保存测试结果到数据库
db_result = await db.execute(
select(AIConfig).where(AIConfig.tenant_id == x_tenant_id)
)
config = db_result.scalar_one_or_none()
if config:
config.last_test_at = datetime.now(timezone.utc)
config.last_test_result = {
k: v.model_dump() for k, v in response.results.items()
}
await db.flush()
return response
# ==================== 供其他模块调用 ====================
async def get_ai_config_for_tenant(
tenant_id: str,
db: AsyncSession,
) -> Optional[dict]:
"""获取租户的 AI 配置(供审核服务调用)"""
result = await db.execute(
select(AIConfig).where(
AIConfig.tenant_id == tenant_id,
AIConfig.is_configured == True,
)
)
config = result.scalar_one_or_none()
if not config:
return None
return {
"tenant_id": config.tenant_id,
"provider": config.provider,
"base_url": config.base_url,
"api_key": decrypt_api_key(config.api_key_encrypted),
"models": config.models,
"temperature": config.temperature,
"max_tokens": config.max_tokens,
}
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"""健康检查 API"""
from fastapi import APIRouter, Depends
from app.config import settings
from app.services.health import HealthChecker, get_health_checker
router = APIRouter(tags=["health"])
@router.get("/health")
async def health_check():
"""
健康检查端点
Returns:
dict: 包含服务状态信息
"""
return {
"status": "healthy",
"service": settings.APP_NAME,
"version": settings.APP_VERSION,
}
@router.get("/health/ready")
async def readiness_check(
health_checker: HealthChecker = Depends(get_health_checker),
):
"""
就绪检查端点(用于 K8s
检查数据库、Redis 等依赖服务是否就绪
Returns:
dict: 服务就绪状态和依赖检查结果
"""
checks = await health_checker.check_all()
all_ready = all(checks.values())
return {
"ready": all_ready,
"checks": checks,
}
@router.get("/health/live")
async def liveness_check():
"""
存活检查端点(用于 K8s
只检查服务进程是否存活,不检查依赖
Returns:
dict: 服务存活状态
"""
return {"alive": True}
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"""
一致性指标 API
按达人、规则类型、时间窗口查询
"""
from datetime import datetime, timedelta, timezone
from fastapi import APIRouter, HTTPException, Query, status
from app.schemas.review import (
ConsistencyMetricsResponse,
ConsistencyWindow,
RuleConsistencyMetric,
ViolationType,
)
router = APIRouter(prefix="/metrics", tags=["metrics"])
@router.get("/consistency", response_model=ConsistencyMetricsResponse)
async def get_consistency_metrics(
influencer_id: str = Query(None, description="达人 ID(必填)"),
window: ConsistencyWindow = Query(ConsistencyWindow.ROLLING_30D, description="计算周期"),
rule_type: ViolationType = Query(None, description="规则类型筛选"),
) -> ConsistencyMetricsResponse:
"""
查询一致性指标
- 按达人 ID 查询
- 支持 Rolling 30 天、周度快照、月度快照
- 可按规则类型筛选
"""
# 验证必填参数
if not influencer_id:
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="缺少必填参数: influencer_id",
)
# 计算时间范围
now = datetime.now(timezone.utc)
if window == ConsistencyWindow.ROLLING_30D:
period_start = now - timedelta(days=30)
period_end = now
elif window == ConsistencyWindow.SNAPSHOT_WEEK:
# 本周一到现在
days_since_monday = now.weekday()
period_start = (now - timedelta(days=days_since_monday)).replace(
hour=0, minute=0, second=0, microsecond=0
)
period_end = now
else: # SNAPSHOT_MONTH
# 本月1号到现在
period_start = now.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
period_end = now
# 生成模拟数据(实际应从数据库查询)
all_metrics = [
RuleConsistencyMetric(
rule_type=ViolationType.FORBIDDEN_WORD,
total_reviews=100,
violation_count=5,
violation_rate=0.05,
),
RuleConsistencyMetric(
rule_type=ViolationType.COMPETITOR_LOGO,
total_reviews=100,
violation_count=2,
violation_rate=0.02,
),
RuleConsistencyMetric(
rule_type=ViolationType.DURATION_SHORT,
total_reviews=100,
violation_count=8,
violation_rate=0.08,
),
]
# 按规则类型筛选
if rule_type:
all_metrics = [m for m in all_metrics if m.rule_type == rule_type]
return ConsistencyMetricsResponse(
influencer_id=influencer_id,
window=window,
period_start=period_start,
period_end=period_end,
metrics=all_metrics,
)
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"""
特例审批 API
创建、查询、审批特例记录
"""
import uuid
from datetime import datetime, timezone
from fastapi import APIRouter, Depends, Header, HTTPException, status
from sqlalchemy import select, and_
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.models.tenant import Tenant
from app.models.risk_exception import (
RiskException,
RiskTargetType as DBRiskTargetType,
RiskExceptionStatus as DBRiskExceptionStatus,
)
from app.schemas.review import (
RiskExceptionCreateRequest,
RiskExceptionRecord,
RiskExceptionStatus,
RiskExceptionDecisionRequest,
RiskTargetType,
)
router = APIRouter(prefix="/risk-exceptions", tags=["risk-exceptions"])
async def _ensure_tenant_exists(tenant_id: str, db: AsyncSession) -> Tenant:
"""确保租户存在,不存在则自动创建"""
result = await db.execute(
select(Tenant).where(Tenant.id == tenant_id)
)
tenant = result.scalar_one_or_none()
if not tenant:
tenant = Tenant(id=tenant_id, name=f"租户-{tenant_id}")
db.add(tenant)
await db.flush()
return tenant
def _exception_to_response(record: RiskException) -> RiskExceptionRecord:
"""将数据库模型转换为响应模型"""
return RiskExceptionRecord(
record_id=record.id,
applicant_id=record.applicant_id,
apply_time=record.apply_time,
target_type=RiskTargetType(record.target_type.value),
target_id=record.target_id,
risk_rule_id=record.risk_rule_id,
status=RiskExceptionStatus(record.status.value),
valid_start_time=record.valid_start_time,
valid_end_time=record.valid_end_time,
reason_category=record.reason_category,
justification=record.justification,
attachment_url=record.attachment_url,
current_approver_id=record.current_approver_id,
approval_chain_log=record.approval_chain_log or [],
auto_rejected=record.auto_rejected,
rejection_reason=record.rejection_reason,
last_status_at=record.last_status_at,
)
@router.post("", response_model=RiskExceptionRecord, status_code=status.HTTP_201_CREATED)
async def create_exception(
request: RiskExceptionCreateRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> RiskExceptionRecord:
"""创建特例申请"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
record_id = f"exc-{uuid.uuid4().hex[:12]}"
now = datetime.now(timezone.utc)
record = RiskException(
id=record_id,
tenant_id=x_tenant_id,
applicant_id=request.applicant_id,
apply_time=now,
target_type=DBRiskTargetType(request.target_type.value),
target_id=request.target_id,
risk_rule_id=request.risk_rule_id,
status=DBRiskExceptionStatus.PENDING,
valid_start_time=request.valid_start_time,
valid_end_time=request.valid_end_time,
reason_category=request.reason_category,
justification=request.justification,
attachment_url=request.attachment_url,
current_approver_id=request.current_approver_id,
approval_chain_log=[],
auto_rejected=False,
rejection_reason=None,
last_status_at=now,
)
db.add(record)
await db.flush()
await db.refresh(record)
return _exception_to_response(record)
@router.get("/{record_id}", response_model=RiskExceptionRecord)
async def get_exception(
record_id: str,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> RiskExceptionRecord:
"""查询特例记录"""
result = await db.execute(
select(RiskException).where(
and_(
RiskException.id == record_id,
RiskException.tenant_id == x_tenant_id,
)
)
)
record = result.scalar_one_or_none()
if not record:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"特例记录不存在: {record_id}",
)
return _exception_to_response(record)
@router.post("/{record_id}/approve", response_model=RiskExceptionRecord)
async def approve_exception(
record_id: str,
request: RiskExceptionDecisionRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> RiskExceptionRecord:
"""审批通过"""
result = await db.execute(
select(RiskException).where(
and_(
RiskException.id == record_id,
RiskException.tenant_id == x_tenant_id,
)
)
)
record = result.scalar_one_or_none()
if not record:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"特例记录不存在: {record_id}",
)
now = datetime.now(timezone.utc)
record.status = DBRiskExceptionStatus.APPROVED
record.last_status_at = now
# 更新审批日志
approval_log = record.approval_chain_log or []
approval_log.append({
"approver_id": request.approver_id,
"action": "approve",
"comment": request.comment,
"timestamp": now.isoformat(),
})
record.approval_chain_log = approval_log
await db.flush()
await db.refresh(record)
return _exception_to_response(record)
@router.post("/{record_id}/reject", response_model=RiskExceptionRecord)
async def reject_exception(
record_id: str,
request: RiskExceptionDecisionRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> RiskExceptionRecord:
"""驳回申请"""
result = await db.execute(
select(RiskException).where(
and_(
RiskException.id == record_id,
RiskException.tenant_id == x_tenant_id,
)
)
)
record = result.scalar_one_or_none()
if not record:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"特例记录不存在: {record_id}",
)
# 驳回必须填写原因
if not request.comment:
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="驳回必须填写原因",
)
now = datetime.now(timezone.utc)
record.status = DBRiskExceptionStatus.REJECTED
record.rejection_reason = request.comment
record.last_status_at = now
# 更新审批日志
approval_log = record.approval_chain_log or []
approval_log.append({
"approver_id": request.approver_id,
"action": "reject",
"comment": request.comment,
"timestamp": now.isoformat(),
})
record.approval_chain_log = approval_log
await db.flush()
await db.refresh(record)
return _exception_to_response(record)
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"""
规则管理 API
违禁词库、白名单、竞品库、平台规则
"""
import uuid
from fastapi import APIRouter, Depends, Header, HTTPException, status
from pydantic import BaseModel, Field
from typing import Optional
from sqlalchemy import select, and_
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.models.tenant import Tenant
from app.models.rule import ForbiddenWord, WhitelistItem, Competitor
router = APIRouter(prefix="/rules", tags=["rules"])
# ==================== 请求/响应模型 ====================
class ForbiddenWordCreate(BaseModel):
word: str
category: str
severity: str
class ForbiddenWordResponse(BaseModel):
id: str
word: str
category: str
severity: str
class ForbiddenWordListResponse(BaseModel):
items: list[ForbiddenWordResponse]
total: int
class WhitelistCreate(BaseModel):
term: str
reason: str
brand_id: str
class WhitelistResponse(BaseModel):
id: str
term: str
reason: str
brand_id: str
class WhitelistListResponse(BaseModel):
items: list[WhitelistResponse]
total: int
class CompetitorCreate(BaseModel):
name: str
brand_id: str
logo_url: Optional[str] = None
keywords: list[str] = Field(default_factory=list)
class CompetitorResponse(BaseModel):
id: str
name: str
brand_id: str
logo_url: Optional[str] = None
keywords: list[str] = Field(default_factory=list)
class CompetitorListResponse(BaseModel):
items: list[CompetitorResponse]
total: int
class PlatformRuleResponse(BaseModel):
platform: str
rules: list[dict]
version: str
updated_at: str
class PlatformListResponse(BaseModel):
items: list[PlatformRuleResponse]
total: int
class RuleValidateRequest(BaseModel):
brand_id: str
platform: str
brief_rules: dict
class RuleConflict(BaseModel):
brief_rule: str
platform_rule: str
suggestion: str
class RuleValidateResponse(BaseModel):
conflicts: list[RuleConflict]
# ==================== 预置平台规则 ====================
_platform_rules = {
"douyin": {
"platform": "douyin",
"rules": [
{"type": "forbidden_word", "words": ["最好", "第一", "最佳", "绝对", "100%"]},
{"type": "duration", "min_seconds": 7},
],
"version": "2024.01",
"updated_at": "2024-01-15T00:00:00Z",
},
"xiaohongshu": {
"platform": "xiaohongshu",
"rules": [
{"type": "forbidden_word", "words": ["最好", "绝对", "100%"]},
],
"version": "2024.01",
"updated_at": "2024-01-10T00:00:00Z",
},
"bilibili": {
"platform": "bilibili",
"rules": [
{"type": "forbidden_word", "words": ["最好", "第一"]},
],
"version": "2024.01",
"updated_at": "2024-01-12T00:00:00Z",
},
}
# ==================== 辅助函数 ====================
async def _ensure_tenant_exists(tenant_id: str, db: AsyncSession) -> Tenant:
"""确保租户存在,不存在则自动创建"""
result = await db.execute(
select(Tenant).where(Tenant.id == tenant_id)
)
tenant = result.scalar_one_or_none()
if not tenant:
tenant = Tenant(id=tenant_id, name=f"租户-{tenant_id}")
db.add(tenant)
await db.flush()
return tenant
# ==================== 违禁词库 ====================
@router.get("/forbidden-words", response_model=ForbiddenWordListResponse)
async def list_forbidden_words(
category: str = None,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> ForbiddenWordListResponse:
"""查询违禁词列表"""
query = select(ForbiddenWord).where(ForbiddenWord.tenant_id == x_tenant_id)
if category:
query = query.where(ForbiddenWord.category == category)
result = await db.execute(query)
words = result.scalars().all()
return ForbiddenWordListResponse(
items=[
ForbiddenWordResponse(
id=w.id,
word=w.word,
category=w.category,
severity=w.severity,
)
for w in words
],
total=len(words),
)
@router.post(
"/forbidden-words",
response_model=ForbiddenWordResponse,
status_code=status.HTTP_201_CREATED,
)
async def add_forbidden_word(
request: ForbiddenWordCreate,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> ForbiddenWordResponse:
"""添加违禁词"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
# 检查重复
result = await db.execute(
select(ForbiddenWord).where(
and_(
ForbiddenWord.tenant_id == x_tenant_id,
ForbiddenWord.word == request.word,
)
)
)
existing = result.scalar_one_or_none()
if existing:
raise HTTPException(
status_code=status.HTTP_409_CONFLICT,
detail=f"违禁词已存在: {request.word}",
)
word_id = f"fw-{uuid.uuid4().hex[:8]}"
word = ForbiddenWord(
id=word_id,
tenant_id=x_tenant_id,
word=request.word,
category=request.category,
severity=request.severity,
)
db.add(word)
await db.flush()
return ForbiddenWordResponse(
id=word.id,
word=word.word,
category=word.category,
severity=word.severity,
)
@router.delete("/forbidden-words/{word_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_forbidden_word(
word_id: str,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
):
"""删除违禁词"""
result = await db.execute(
select(ForbiddenWord).where(
and_(
ForbiddenWord.id == word_id,
ForbiddenWord.tenant_id == x_tenant_id,
)
)
)
word = result.scalar_one_or_none()
if not word:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"违禁词不存在: {word_id}",
)
await db.delete(word)
await db.flush()
# ==================== 白名单 ====================
@router.get("/whitelist", response_model=WhitelistListResponse)
async def list_whitelist(
brand_id: str = None,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> WhitelistListResponse:
"""查询白名单"""
query = select(WhitelistItem).where(WhitelistItem.tenant_id == x_tenant_id)
if brand_id:
query = query.where(WhitelistItem.brand_id == brand_id)
result = await db.execute(query)
items = result.scalars().all()
return WhitelistListResponse(
items=[
WhitelistResponse(
id=item.id,
term=item.term,
reason=item.reason,
brand_id=item.brand_id,
)
for item in items
],
total=len(items),
)
@router.post(
"/whitelist",
response_model=WhitelistResponse,
status_code=status.HTTP_201_CREATED,
)
async def add_to_whitelist(
request: WhitelistCreate,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> WhitelistResponse:
"""添加白名单"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
item_id = f"wl-{uuid.uuid4().hex[:8]}"
item = WhitelistItem(
id=item_id,
tenant_id=x_tenant_id,
brand_id=request.brand_id,
term=request.term,
reason=request.reason,
)
db.add(item)
await db.flush()
return WhitelistResponse(
id=item.id,
term=item.term,
reason=item.reason,
brand_id=item.brand_id,
)
# ==================== 竞品库 ====================
@router.get("/competitors", response_model=CompetitorListResponse)
async def list_competitors(
brand_id: str = None,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> CompetitorListResponse:
"""查询竞品列表"""
query = select(Competitor).where(Competitor.tenant_id == x_tenant_id)
if brand_id:
query = query.where(Competitor.brand_id == brand_id)
result = await db.execute(query)
competitors = result.scalars().all()
return CompetitorListResponse(
items=[
CompetitorResponse(
id=c.id,
name=c.name,
brand_id=c.brand_id,
logo_url=c.logo_url,
keywords=c.keywords or [],
)
for c in competitors
],
total=len(competitors),
)
@router.post(
"/competitors",
response_model=CompetitorResponse,
status_code=status.HTTP_201_CREATED,
)
async def add_competitor(
request: CompetitorCreate,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> CompetitorResponse:
"""添加竞品"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
comp_id = f"comp-{uuid.uuid4().hex[:8]}"
competitor = Competitor(
id=comp_id,
tenant_id=x_tenant_id,
brand_id=request.brand_id,
name=request.name,
logo_url=request.logo_url,
keywords=request.keywords,
)
db.add(competitor)
await db.flush()
return CompetitorResponse(
id=competitor.id,
name=competitor.name,
brand_id=competitor.brand_id,
logo_url=competitor.logo_url,
keywords=competitor.keywords or [],
)
@router.delete("/competitors/{competitor_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_competitor(
competitor_id: str,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
):
"""删除竞品"""
result = await db.execute(
select(Competitor).where(
and_(
Competitor.id == competitor_id,
Competitor.tenant_id == x_tenant_id,
)
)
)
competitor = result.scalar_one_or_none()
if not competitor:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"竞品不存在: {competitor_id}",
)
await db.delete(competitor)
await db.flush()
# ==================== 平台规则 ====================
@router.get("/platforms", response_model=PlatformListResponse)
async def list_platform_rules() -> PlatformListResponse:
"""查询所有平台规则"""
return PlatformListResponse(
items=[PlatformRuleResponse(**r) for r in _platform_rules.values()],
total=len(_platform_rules),
)
@router.get("/platforms/{platform}", response_model=PlatformRuleResponse)
async def get_platform_rules(platform: str) -> PlatformRuleResponse:
"""查询指定平台规则"""
if platform not in _platform_rules:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"平台不存在: {platform}",
)
return PlatformRuleResponse(**_platform_rules[platform])
# ==================== 规则冲突检测 ====================
@router.post("/validate", response_model=RuleValidateResponse)
async def validate_rules(request: RuleValidateRequest) -> RuleValidateResponse:
"""检测 Brief 与平台规则冲突"""
conflicts = []
platform_rule = _platform_rules.get(request.platform)
if not platform_rule:
return RuleValidateResponse(conflicts=[])
# 检查 required_phrases 是否包含违禁词
required_phrases = request.brief_rules.get("required_phrases", [])
platform_forbidden = []
for rule in platform_rule.get("rules", []):
if rule.get("type") == "forbidden_word":
platform_forbidden.extend(rule.get("words", []))
for phrase in required_phrases:
for word in platform_forbidden:
if word in phrase:
conflicts.append(RuleConflict(
brief_rule=f"要求使用:{phrase}",
platform_rule=f"平台禁止:{word}",
suggestion=f"Brief 要求的 '{phrase}' 包含平台违禁词 '{word}',建议修改",
))
return RuleValidateResponse(conflicts=conflicts)
# ==================== 辅助函数(供其他模块调用) ====================
async def get_whitelist_for_brand(
tenant_id: str,
brand_id: str,
db: AsyncSession,
) -> list[str]:
"""获取品牌白名单词汇"""
result = await db.execute(
select(WhitelistItem).where(
and_(
WhitelistItem.tenant_id == tenant_id,
WhitelistItem.brand_id == brand_id,
)
)
)
items = result.scalars().all()
return [item.term for item in items]
async def get_other_brands_whitelist_terms(
tenant_id: str,
brand_id: str,
db: AsyncSession,
) -> list[tuple[str, str]]:
"""
获取其他品牌的白名单词汇(用于品牌安全检测)
Returns:
list of (term, owner_brand_id)
"""
result = await db.execute(
select(WhitelistItem).where(
and_(
WhitelistItem.tenant_id == tenant_id,
WhitelistItem.brand_id != brand_id,
)
)
)
items = result.scalars().all()
return [(item.term, item.brand_id) for item in items]
async def get_forbidden_words_for_tenant(
tenant_id: str,
db: AsyncSession,
category: str = None,
) -> list[dict]:
"""获取租户的违禁词列表"""
query = select(ForbiddenWord).where(ForbiddenWord.tenant_id == tenant_id)
if category:
query = query.where(ForbiddenWord.category == category)
result = await db.execute(query)
words = result.scalars().all()
return [
{
"id": w.id,
"word": w.word,
"category": w.category,
"severity": w.severity,
}
for w in words
]
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"""
脚本预审 API
"""
import re
from typing import Optional
from fastapi import APIRouter, Depends, Header
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.schemas.review import (
ScriptReviewRequest,
ScriptReviewResponse,
Violation,
ViolationType,
RiskLevel,
Position,
SoftRiskWarning,
)
from app.api.rules import (
get_whitelist_for_brand,
get_other_brands_whitelist_terms,
get_forbidden_words_for_tenant,
)
from app.services.soft_risk import evaluate_soft_risk
from app.services.ai_service import AIServiceFactory
router = APIRouter(prefix="/scripts", tags=["scripts"])
# 内置违禁词库(广告极限词)
ABSOLUTE_WORDS = ["最好", "第一", "最佳", "绝对", "100%"]
# 功效词库(医疗/功效宣称)
EFFICACY_WORDS = ["根治", "治愈", "治疗", "药效", "疗效", "特效"]
# 广告语境关键词(用于判断是否为广告场景)
AD_CONTEXT_KEYWORDS = ["产品", "购买", "销量", "品质", "推荐", "价格", "优惠", "促销"]
def _is_ad_context(content: str, word: str) -> bool:
"""
判断是否为广告语境
规则:
- 如果内容中包含广告关键词,认为是广告语境
- 如果违禁词出现在明显的非广告句式中,不是广告语境
"""
# 非广告语境模式
non_ad_patterns = [
r"他是第一[个名位]", # 他是第一个/名
r"[是为]第一[个名位]", # 是第一个
r"最开心|最高兴|最难忘", # 情感表达
r"第一[次个].*[到来抵达]", # 第一次到达
]
for pattern in non_ad_patterns:
if re.search(pattern, content):
return False
# 检查是否包含广告关键词
return any(kw in content for kw in AD_CONTEXT_KEYWORDS)
def _check_selling_point_coverage(content: str, required_points: list[str]) -> list[str]:
"""
检查卖点覆盖情况
使用语义匹配而非精确匹配
"""
missing = []
# 卖点关键词映射
point_keywords = {
"品牌名称": ["品牌", "牌子", "品牌A", "品牌B"],
"使用方法": ["使用", "用法", "早晚", "每天", "一次", "涂抹", "喷洒"],
"功效说明": ["功效", "效果", "水润", "美白", "保湿", "滋润", "改善"],
}
for point in required_points:
# 精确匹配
if point in content:
continue
# 关键词匹配
keywords = point_keywords.get(point, [])
if any(kw in content for kw in keywords):
continue
missing.append(point)
return missing
@router.post("/review", response_model=ScriptReviewResponse)
async def review_script(
request: ScriptReviewRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> ScriptReviewResponse:
"""
脚本预审
- 检测违禁词(支持语境感知)
- 检测功效词
- 检查必要卖点
- 应用白名单
- 可选 AI 深度分析
- 返回合规分数和修改建议
"""
violations = []
content = request.content
# 获取品牌白名单
whitelist = await get_whitelist_for_brand(x_tenant_id, request.brand_id, db)
# 获取租户自定义违禁词
tenant_forbidden_words = await get_forbidden_words_for_tenant(x_tenant_id, db)
# 1. 违禁词检测(广告极限词)
all_forbidden_words = ABSOLUTE_WORDS + [w["word"] for w in tenant_forbidden_words]
for word in all_forbidden_words:
# 白名单跳过
if word in whitelist:
continue
start = 0
while True:
pos = content.find(word, start)
if pos == -1:
break
# 语境感知:非广告语境跳过
if not _is_ad_context(content, word):
start = pos + 1
continue
violations.append(Violation(
type=ViolationType.FORBIDDEN_WORD,
content=word,
severity=RiskLevel.HIGH,
suggestion=f"建议删除或替换违禁词:{word}",
position=Position(start=pos, end=pos + len(word)),
))
start = pos + 1
# 2. 功效词检测
for word in EFFICACY_WORDS:
if word in whitelist:
continue
start = 0
while True:
pos = content.find(word, start)
if pos == -1:
break
violations.append(Violation(
type=ViolationType.EFFICACY_CLAIM,
content=word,
severity=RiskLevel.HIGH,
suggestion=f"功效宣称词违反广告法,建议删除:{word}",
position=Position(start=pos, end=pos + len(word)),
))
start = pos + 1
# 3. 检测其他品牌专属词(品牌安全风险)
other_brand_terms = await get_other_brands_whitelist_terms(x_tenant_id, request.brand_id, db)
for term, owner_brand in other_brand_terms:
if term in content:
violations.append(Violation(
type=ViolationType.BRAND_SAFETY,
content=term,
severity=RiskLevel.MEDIUM,
suggestion=f"使用了其他品牌的专属词汇:{term}",
position=Position(start=content.find(term), end=content.find(term) + len(term)),
))
# 4. 检查遗漏卖点
missing_points: list[str] | None = None
if request.required_points:
missing = _check_selling_point_coverage(content, request.required_points)
missing_points = missing if missing else []
# 5. 可选:AI 深度分析
ai_violations = await _ai_deep_analysis(x_tenant_id, content, db)
if ai_violations:
violations.extend(ai_violations)
# 6. 计算分数
score = 100 - len(violations) * 25
if missing_points:
score -= len(missing_points) * 5
score = max(0, score)
# 7. 生成摘要
parts = []
if violations:
parts.append(f"发现 {len(violations)} 处违规")
if missing_points:
parts.append(f"遗漏 {len(missing_points)} 个卖点")
if not parts:
summary = "脚本内容合规,未发现问题"
else:
summary = "".join(parts)
# 8. 软性风控评估
soft_warnings: list[SoftRiskWarning] = []
if request.soft_risk_context:
soft_warnings = evaluate_soft_risk(request.soft_risk_context)
return ScriptReviewResponse(
score=score,
summary=summary,
violations=violations,
missing_points=missing_points,
soft_warnings=soft_warnings,
)
async def _ai_deep_analysis(
tenant_id: str,
content: str,
db: AsyncSession,
) -> list[Violation]:
"""
使用 AI 进行深度分析
AI 分析失败时返回空列表,降级到规则检测
"""
try:
# 获取 AI 客户端
ai_client = await AIServiceFactory.get_client(tenant_id, db)
if not ai_client:
return []
# 获取模型配置
config = await AIServiceFactory.get_config(tenant_id, db)
if not config:
return []
text_model = config.models.get("text", "gpt-4o")
# 构建分析提示
analysis_prompt = f"""作为广告合规审核专家,请分析以下广告脚本内容,检测潜在的合规风险:
脚本内容:
{content}
请检查以下方面:
1. 是否存在隐性的虚假宣传(如暗示疗效但不直接说明)
2. 是否存在容易引起误解的表述
3. 是否存在夸大描述
4. 是否存在可能违反广告法的其他内容
如果发现问题,请以 JSON 数组格式返回,每项包含:
- type: 违规类型 (forbidden_word/efficacy_claim/brand_safety)
- content: 违规内容
- severity: 严重程度 (high/medium/low)
- suggestion: 修改建议
如果未发现问题,返回空数组 []
请只返回 JSON 数组,不要包含其他内容。"""
response = await ai_client.chat_completion(
messages=[{"role": "user", "content": analysis_prompt}],
model=text_model,
temperature=0.3,
max_tokens=1000,
)
# 解析 AI 响应
import json
try:
# 清理响应内容(移除可能的 markdown 标记)
response_content = response.content.strip()
if response_content.startswith("```"):
response_content = response_content.split("\n", 1)[1]
if response_content.endswith("```"):
response_content = response_content.rsplit("\n", 1)[0]
ai_results = json.loads(response_content)
violations = []
for item in ai_results:
violation_type = item.get("type", "forbidden_word")
if violation_type == "forbidden_word":
vtype = ViolationType.FORBIDDEN_WORD
elif violation_type == "efficacy_claim":
vtype = ViolationType.EFFICACY_CLAIM
else:
vtype = ViolationType.BRAND_SAFETY
severity = item.get("severity", "medium")
if severity == "high":
slevel = RiskLevel.HIGH
elif severity == "low":
slevel = RiskLevel.LOW
else:
slevel = RiskLevel.MEDIUM
violations.append(Violation(
type=vtype,
content=item.get("content", ""),
severity=slevel,
suggestion=item.get("suggestion", "建议修改"),
))
return violations
except json.JSONDecodeError:
# JSON 解析失败,返回空列表
return []
except Exception:
# AI 调用失败,降级到规则检测
return []
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"""
审核任务 API
"""
import uuid
from datetime import datetime, timezone
from fastapi import APIRouter, Depends, Header, HTTPException, Query, status
from sqlalchemy import select, and_
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.models.tenant import Tenant
from app.models.review import ManualTask, TaskStatus as DBTaskStatus, Platform as DBPlatform
from app.schemas.review import (
TaskCreateRequest,
TaskResponse,
TaskListResponse,
TaskScriptUploadRequest,
TaskVideoUploadRequest,
TaskApproveRequest,
TaskRejectRequest,
TaskStatus,
Platform,
)
router = APIRouter(prefix="/tasks", tags=["tasks"])
async def _ensure_tenant_exists(tenant_id: str, db: AsyncSession) -> Tenant:
"""确保租户存在,不存在则自动创建"""
result = await db.execute(
select(Tenant).where(Tenant.id == tenant_id)
)
tenant = result.scalar_one_or_none()
if not tenant:
tenant = Tenant(id=tenant_id, name=f"租户-{tenant_id}")
db.add(tenant)
await db.flush()
return tenant
def _task_to_response(task: ManualTask) -> TaskResponse:
"""将数据库模型转换为响应模型"""
return TaskResponse(
task_id=task.id,
video_url=task.video_url,
script_content=task.script_content,
script_file_url=task.script_file_url,
has_script=bool(task.script_content or task.script_file_url),
has_video=bool(task.video_url),
platform=Platform(task.platform.value),
creator_id=task.creator_id,
status=TaskStatus(task.status.value),
created_at=task.created_at.isoformat() if task.created_at else "",
)
@router.post("", response_model=TaskResponse, status_code=status.HTTP_201_CREATED)
async def create_task(
request: TaskCreateRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskResponse:
"""
创建审核任务
"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
task_id = f"task-{uuid.uuid4().hex[:12]}"
task = ManualTask(
id=task_id,
tenant_id=x_tenant_id,
video_url=str(request.video_url) if request.video_url else None,
video_uploaded_at=datetime.now(timezone.utc) if request.video_url else None,
platform=DBPlatform(request.platform.value),
creator_id=request.creator_id,
status=DBTaskStatus.PENDING,
script_content=request.script_content,
script_file_url=str(request.script_file_url) if request.script_file_url else None,
script_uploaded_at=datetime.now(timezone.utc)
if request.script_content or request.script_file_url
else None,
)
db.add(task)
await db.flush()
await db.refresh(task)
return _task_to_response(task)
@router.post("/{task_id}/script", response_model=TaskResponse)
async def upload_task_script(
task_id: str,
request: TaskScriptUploadRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskResponse:
"""
上传/更新任务脚本
"""
if not request.script_content and not request.script_file_url:
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="script_content 或 script_file_url 至少提供一个",
)
result = await db.execute(
select(ManualTask).where(
and_(
ManualTask.id == task_id,
ManualTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"任务不存在: {task_id}",
)
task.script_content = request.script_content
task.script_file_url = (
str(request.script_file_url) if request.script_file_url else None
)
task.script_uploaded_at = datetime.now(timezone.utc)
await db.flush()
await db.refresh(task)
return _task_to_response(task)
@router.post("/{task_id}/video", response_model=TaskResponse)
async def upload_task_video(
task_id: str,
request: TaskVideoUploadRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskResponse:
"""
上传/更新任务视频
"""
result = await db.execute(
select(ManualTask).where(
and_(
ManualTask.id == task_id,
ManualTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"任务不存在: {task_id}",
)
task.video_url = str(request.video_url)
task.video_uploaded_at = datetime.now(timezone.utc)
await db.flush()
await db.refresh(task)
return _task_to_response(task)
@router.get("/{task_id}", response_model=TaskResponse)
async def get_task(
task_id: str,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskResponse:
"""
查询单个任务
"""
result = await db.execute(
select(ManualTask).where(
and_(
ManualTask.id == task_id,
ManualTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"任务不存在: {task_id}",
)
return _task_to_response(task)
@router.get("", response_model=TaskListResponse)
async def list_tasks(
page: int = Query(1, ge=1),
page_size: int = Query(20, ge=1, le=100),
task_status: TaskStatus = Query(None, alias="status"),
platform: Platform = None,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskListResponse:
"""
查询任务列表
支持分页和筛选
"""
# 构建查询
query = select(ManualTask).where(ManualTask.tenant_id == x_tenant_id)
if task_status:
query = query.where(ManualTask.status == DBTaskStatus(task_status.value))
if platform:
query = query.where(ManualTask.platform == DBPlatform(platform.value))
# 按创建时间倒序排列
query = query.order_by(ManualTask.created_at.desc())
# 执行查询获取总数
count_result = await db.execute(
select(ManualTask.id).where(ManualTask.tenant_id == x_tenant_id)
)
total = len(count_result.all())
# 分页
offset = (page - 1) * page_size
query = query.offset(offset).limit(page_size)
result = await db.execute(query)
tasks = result.scalars().all()
return TaskListResponse(
items=[_task_to_response(t) for t in tasks],
total=total,
page=page,
page_size=page_size,
)
@router.post("/{task_id}/approve", response_model=TaskResponse)
async def approve_task(
task_id: str,
request: TaskApproveRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskResponse:
"""
通过任务
"""
result = await db.execute(
select(ManualTask).where(
and_(
ManualTask.id == task_id,
ManualTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"任务不存在: {task_id}",
)
task.status = DBTaskStatus.APPROVED
task.approve_comment = request.comment
task.reviewed_at = datetime.now(timezone.utc)
await db.flush()
await db.refresh(task)
return _task_to_response(task)
@router.post("/{task_id}/reject", response_model=TaskResponse)
async def reject_task(
task_id: str,
request: TaskRejectRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> TaskResponse:
"""
驳回任务
"""
result = await db.execute(
select(ManualTask).where(
and_(
ManualTask.id == task_id,
ManualTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"任务不存在: {task_id}",
)
task.status = DBTaskStatus.REJECTED
task.reject_reason = request.reason
task.reject_violations = request.violations
task.reviewed_at = datetime.now(timezone.utc)
await db.flush()
await db.refresh(task)
return _task_to_response(task)
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"""
视频审核 API
"""
import uuid
from typing import Optional
from fastapi import APIRouter, Depends, Header, HTTPException, status
from fastapi.responses import JSONResponse
from sqlalchemy import select, and_
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.models.tenant import Tenant
from app.models.review import ReviewTask, TaskStatus as DBTaskStatus, Platform as DBPlatform
from app.schemas.review import (
VideoReviewRequest,
VideoReviewSubmitResponse,
VideoReviewProgressResponse,
VideoReviewResultResponse,
TaskStatus,
Violation,
ViolationType,
RiskLevel,
ViolationSource,
SoftRiskWarning,
)
from app.services.ai_service import AIServiceFactory
from app.services.ai_client import OpenAICompatibleClient
router = APIRouter(prefix="/videos", tags=["videos"])
async def _ensure_tenant_exists(tenant_id: str, db: AsyncSession) -> Tenant:
"""确保租户存在,不存在则自动创建"""
result = await db.execute(
select(Tenant).where(Tenant.id == tenant_id)
)
tenant = result.scalar_one_or_none()
if not tenant:
tenant = Tenant(id=tenant_id, name=f"租户-{tenant_id}")
db.add(tenant)
await db.flush()
return tenant
@router.post(
"/review",
response_model=VideoReviewSubmitResponse,
status_code=status.HTTP_202_ACCEPTED,
)
async def submit_video_review(
request: VideoReviewRequest,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> VideoReviewSubmitResponse:
"""
提交视频审核
返回 202 Accepted,异步处理
"""
# 确保租户存在
await _ensure_tenant_exists(x_tenant_id, db)
review_id = f"review-{uuid.uuid4().hex[:12]}"
# 创建审核任务
task = ReviewTask(
id=review_id,
tenant_id=x_tenant_id,
video_url=str(request.video_url),
platform=DBPlatform(request.platform.value),
brand_id=request.brand_id,
creator_id=request.creator_id,
status=DBTaskStatus.PENDING,
progress=0,
current_step="等待处理",
competitors=request.competitors,
requirements=request.requirements,
)
db.add(task)
await db.commit()
# 触发 Celery 异步任务
try:
from app.tasks.review import process_video_review_task
process_video_review_task.delay(
review_id=review_id,
tenant_id=x_tenant_id,
video_url=str(request.video_url),
brand_id=request.brand_id,
platform=request.platform.value,
)
except Exception:
# Celery 不可用时,任务保持 PENDING 状态
# 后续可通过定时任务或手动触发处理
pass
return VideoReviewSubmitResponse(
review_id=review_id,
status=TaskStatus.PENDING,
)
@router.get(
"/review/{review_id}/progress",
response_model=VideoReviewProgressResponse,
)
async def get_review_progress(
review_id: str,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
) -> VideoReviewProgressResponse:
"""
查询审核进度
"""
result = await db.execute(
select(ReviewTask).where(
and_(
ReviewTask.id == review_id,
ReviewTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"审核任务不存在: {review_id}",
)
return VideoReviewProgressResponse(
review_id=review_id,
status=TaskStatus(task.status.value),
progress=task.progress,
current_step=task.current_step,
)
@router.get("/review/{review_id}/result")
async def get_review_result(
review_id: str,
x_tenant_id: str = Header(..., alias="X-Tenant-ID"),
db: AsyncSession = Depends(get_db),
):
"""
查询审核结果
- 未完成:返回 202 + 进度结构
- 已完成:返回 200 + 结果结构
"""
result = await db.execute(
select(ReviewTask).where(
and_(
ReviewTask.id == review_id,
ReviewTask.tenant_id == x_tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"审核任务不存在: {review_id}",
)
# 未完成:返回 202 + 进度
if task.status in [DBTaskStatus.PENDING, DBTaskStatus.PROCESSING]:
progress_response = VideoReviewProgressResponse(
review_id=review_id,
status=TaskStatus(task.status.value),
progress=task.progress,
current_step=task.current_step,
)
return JSONResponse(
status_code=status.HTTP_202_ACCEPTED,
content=progress_response.model_dump(),
)
# 失败:返回错误信息
if task.status == DBTaskStatus.FAILED:
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail=task.error_message or "审核任务失败",
)
# 已完成:返回 200 + 结果
violations = []
if task.violations:
for v in task.violations:
violations.append(Violation(**v))
soft_warnings = []
if task.soft_warnings:
for w in task.soft_warnings:
soft_warnings.append(SoftRiskWarning(**w))
return VideoReviewResultResponse(
review_id=review_id,
status=TaskStatus.COMPLETED,
score=task.score or 100,
summary=task.summary or "审核完成",
violations=violations,
soft_warnings=soft_warnings,
)
# ==================== AI 辅助审核方法 ====================
async def _perform_ai_video_review(
task: ReviewTask,
ai_client: OpenAICompatibleClient,
text_model: str,
vision_model: str,
audio_model: str,
db: AsyncSession,
) -> dict:
"""
使用 AI 执行视频审核
流程:
1. 下载视频
2. ASR 转写
3. 提取关键帧
4. 视觉分析 (竞品 Logo)
5. OCR 字幕
6. 生成报告
"""
violations = []
score = 100
try:
# 更新进度: 开始处理
task.status = DBTaskStatus.PROCESSING
task.progress = 10
task.current_step = "下载视频"
await db.flush()
# TODO: 实际实现需要集成视频处理库
# 1. 下载视频
# video_path = await download_video(task.video_url)
# 2. ASR 转写
task.progress = 30
task.current_step = "语音转写"
await db.flush()
# asr_result = await ai_client.audio_transcription(
# audio_url=task.video_url, # 需要提取音频
# model=audio_model,
# )
# transcript = asr_result.content
# 3. 提取关键帧
task.progress = 50
task.current_step = "提取关键帧"
await db.flush()
# frames = await extract_keyframes(video_path)
# 4. 视觉分析
task.progress = 70
task.current_step = "视觉分析"
await db.flush()
# 检测竞品 Logo
# if task.competitors:
# vision_prompt = f"""
# 分析这些视频截图,检测是否包含以下竞品品牌的 Logo 或标识:
# 竞品列表: {task.competitors}
#
# 如果发现竞品,请返回:
# 1. 竞品名称
# 2. 出现的帧编号
# 3. 置信度 (0-1)
# """
# vision_result = await ai_client.vision_analysis(
# image_urls=frames,
# prompt=vision_prompt,
# model=vision_model,
# )
# 5. 文本综合分析
task.progress = 85
task.current_step = "综合分析"
await db.flush()
# analysis_prompt = f"""
# 作为广告合规审核专家,请分析以下视频脚本内容:
#
# 脚本内容:
# {transcript}
#
# 请检查:
# 1. 是否包含广告法违禁词(最好、第一、最佳等极限词)
# 2. 是否包含虚假功效宣称
# 3. 品牌信息是否正确
#
# 返回 JSON 格式:
# {{"violations": [...], "score": 0-100, "summary": "..."}}
# """
# analysis_result = await ai_client.chat_completion(
# messages=[{"role": "user", "content": analysis_prompt}],
# model=text_model,
# )
# 6. 完成审核
task.progress = 100
task.current_step = "审核完成"
task.status = DBTaskStatus.COMPLETED
task.score = score
task.summary = "审核完成,未发现违规" if not violations else f"发现 {len(violations)} 处违规"
task.violations = [v.model_dump() for v in violations] if violations else []
await db.flush()
return {
"score": score,
"summary": task.summary,
"violations": violations,
}
except Exception as e:
task.status = DBTaskStatus.FAILED
task.error_message = str(e)
await db.flush()
raise
# ==================== 后台任务入口 ====================
async def process_video_review_task(
review_id: str,
tenant_id: str,
db: AsyncSession,
):
"""
处理视频审核任务(由 Celery 或后台任务调用)
"""
# 获取任务
result = await db.execute(
select(ReviewTask).where(
and_(
ReviewTask.id == review_id,
ReviewTask.tenant_id == tenant_id,
)
)
)
task = result.scalar_one_or_none()
if not task:
return
# 获取 AI 客户端
ai_client = await AIServiceFactory.get_client(tenant_id, db)
if not ai_client:
# 没有配置 AI,使用规则引擎审核
task.status = DBTaskStatus.COMPLETED
task.score = 100
task.summary = "审核完成(规则引擎)"
task.progress = 100
task.current_step = "审核完成"
await db.flush()
return
# 获取模型配置
config = await AIServiceFactory.get_config(tenant_id, db)
models = config.models
# 执行 AI 审核
await _perform_ai_video_review(
task=task,
ai_client=ai_client,
text_model=models.get("text", "gpt-4o"),
vision_model=models.get("vision", "gpt-4o"),
audio_model=models.get("audio", "whisper-1"),
db=db,
)
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"""
Celery 应用配置
后台任务队列
"""
from celery import Celery
from celery.schedules import crontab
from app.config import settings
# 创建 Celery 应用
celery_app = Celery(
"miaosi",
broker=settings.REDIS_URL,
backend=settings.REDIS_URL,
include=["app.tasks.review"],
)
# 配置
celery_app.conf.update(
# 任务序列化
task_serializer="json",
accept_content=["json"],
result_serializer="json",
# 时区
timezone="Asia/Shanghai",
enable_utc=True,
# 任务配置
task_track_started=True,
task_time_limit=600, # 10 分钟超时
task_soft_time_limit=540, # 9 分钟软超时
# 结果配置
result_expires=3600, # 结果保留 1 小时
# 并发配置
worker_prefetch_multiplier=1,
worker_concurrency=4,
# 重试配置
task_acks_late=True,
task_reject_on_worker_lost=True,
# 路由配置
task_routes={
"app.tasks.review.*": {"queue": "review"},
},
# 队列配置
task_default_queue="default",
# 定时任务
beat_schedule={
# 每小时清理过期临时文件
"cleanup-old-files": {
"task": "app.tasks.review.cleanup_old_files_task",
"schedule": crontab(minute=0), # 每小时整点执行
},
},
)
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"""应用配置"""
from pydantic_settings import BaseSettings
from functools import lru_cache
class Settings(BaseSettings):
"""应用设置"""
# 应用
APP_NAME: str = "秒思智能审核平台"
APP_VERSION: str = "1.0.0"
DEBUG: bool = False
# 数据库
DATABASE_URL: str = "postgresql+asyncpg://postgres:postgres@localhost:5432/miaosi"
# Redis
REDIS_URL: str = "redis://localhost:6379/0"
# JWT
SECRET_KEY: str = "your-secret-key-change-in-production"
ALGORITHM: str = "HS256"
ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
# AI 服务
AI_PROVIDER: str = "doubao" # doubao | qwen | deepseek
AI_API_KEY: str = ""
AI_API_BASE_URL: str = ""
class Config:
env_file = ".env"
case_sensitive = True
@lru_cache()
def get_settings() -> Settings:
"""获取配置单例"""
return Settings()
settings = get_settings()
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"""数据库配置"""
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.orm import sessionmaker
from app.config import settings
# 导入所有模型,确保在创建表时被注册
from app.models.base import Base
from app.models import (
Tenant,
AIConfig,
ReviewTask,
ManualTask,
ForbiddenWord,
WhitelistItem,
Competitor,
RiskException,
)
# 创建异步引擎
engine = create_async_engine(
settings.DATABASE_URL,
echo=settings.DEBUG,
future=True,
)
# 创建异步会话工厂
AsyncSessionLocal = sessionmaker(
engine,
class_=AsyncSession,
expire_on_commit=False,
)
async def get_db():
"""获取数据库会话依赖"""
async with AsyncSessionLocal() as session:
try:
yield session
await session.commit()
except Exception:
await session.rollback()
raise
finally:
await session.close()
async def init_db():
"""初始化数据库(创建所有表)"""
async with engine.begin() as conn:
await conn.run_sync(Base.metadata.create_all)
async def drop_db():
"""删除所有表(仅用于测试)"""
async with engine.begin() as conn:
await conn.run_sync(Base.metadata.drop_all)
# 导出所有模型,供其他模块使用
__all__ = [
"Base",
"engine",
"AsyncSessionLocal",
"get_db",
"init_db",
"drop_db",
"Tenant",
"AIConfig",
"ReviewTask",
"ManualTask",
"ForbiddenWord",
"WhitelistItem",
"Competitor",
"RiskException",
]
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"""FastAPI 应用入口"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from app.config import settings
from app.api import health, scripts, videos, tasks, rules, ai_config, risk_exceptions, metrics
# 创建应用
app = FastAPI(
title=settings.APP_NAME,
version=settings.APP_VERSION,
description="AI 营销内容合规审核平台 API",
docs_url="/docs" if settings.DEBUG else None,
redoc_url="/redoc" if settings.DEBUG else None,
)
# CORS 配置
app.add_middleware(
CORSMiddleware,
allow_origins=["*"] if settings.DEBUG else ["https://miaosi.ai"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
# 注册路由
app.include_router(health.router, prefix="/api/v1")
app.include_router(scripts.router, prefix="/api/v1")
app.include_router(videos.router, prefix="/api/v1")
app.include_router(tasks.router, prefix="/api/v1")
app.include_router(rules.router, prefix="/api/v1")
app.include_router(ai_config.router, prefix="/api/v1")
app.include_router(risk_exceptions.router, prefix="/api/v1")
app.include_router(metrics.router, prefix="/api/v1")
@app.get("/")
async def root():
"""根路径"""
return {
"message": f"Welcome to {settings.APP_NAME}",
"version": settings.APP_VERSION,
"docs": "/docs" if settings.DEBUG else "disabled",
}
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"""
数据库模型
导出所有 ORM 模型
"""
from app.models.base import Base, TimestampMixin
from app.models.tenant import Tenant
from app.models.ai_config import AIConfig
from app.models.review import ReviewTask, ManualTask
from app.models.rule import ForbiddenWord, WhitelistItem, Competitor
from app.models.risk_exception import RiskException
__all__ = [
"Base",
"TimestampMixin",
"Tenant",
"AIConfig",
"ReviewTask",
"ManualTask",
"ForbiddenWord",
"WhitelistItem",
"Competitor",
"RiskException",
]
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"""
AI 配置模型
"""
from typing import TYPE_CHECKING, Optional
from datetime import datetime
from sqlalchemy import String, Text, Float, Integer, ForeignKey, DateTime
from app.models.types import JSONType
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.models.base import Base, TimestampMixin
if TYPE_CHECKING:
from app.models.tenant import Tenant
class AIConfig(Base, TimestampMixin):
"""AI 服务配置表"""
__tablename__ = "ai_configs"
id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
unique=True,
nullable=False,
index=True,
)
# 提供商配置
provider: Mapped[str] = mapped_column(String(50), nullable=False)
base_url: Mapped[str] = mapped_column(String(500), nullable=False)
api_key_encrypted: Mapped[str] = mapped_column(Text, nullable=False)
# 模型配置 (JSON)
# {"text": "gpt-4o", "vision": "gpt-4o", "audio": "whisper-1"}
models: Mapped[dict] = mapped_column(JSONType, nullable=False)
# 参数配置
temperature: Mapped[float] = mapped_column(Float, default=0.7, nullable=False)
max_tokens: Mapped[int] = mapped_column(Integer, default=2000, nullable=False)
# 可用模型缓存 (JSON)
available_models: Mapped[Optional[dict]] = mapped_column(JSONType, nullable=True)
# 测试结果
last_test_at: Mapped[Optional[datetime]] = mapped_column(
DateTime(timezone=True),
nullable=True,
)
last_test_result: Mapped[Optional[dict]] = mapped_column(JSONType, nullable=True)
# 配置状态
is_configured: Mapped[bool] = mapped_column(default=False, nullable=False)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="ai_config")
def __repr__(self) -> str:
return f"<AIConfig(tenant_id={self.tenant_id}, provider={self.provider})>"
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"""
数据库模型基类
提供公共字段和功能
"""
from datetime import datetime
from sqlalchemy import DateTime, func
from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
class Base(DeclarativeBase):
"""声明基类"""
pass
class TimestampMixin:
"""时间戳 Mixin,提供 created_at 和 updated_at 字段"""
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
server_default=func.now(),
nullable=False,
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
server_default=func.now(),
onupdate=func.now(),
nullable=False,
)
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"""
审核任务模型
"""
from typing import TYPE_CHECKING, Optional
from datetime import datetime
from sqlalchemy import String, Integer, Float, Text, ForeignKey, DateTime, Enum as SQLEnum
from app.models.types import JSONType
from sqlalchemy.orm import Mapped, mapped_column, relationship
import enum
from app.models.base import Base, TimestampMixin
if TYPE_CHECKING:
from app.models.tenant import Tenant
class TaskStatus(str, enum.Enum):
"""任务状态"""
PENDING = "pending"
PROCESSING = "processing"
COMPLETED = "completed"
FAILED = "failed"
APPROVED = "approved"
REJECTED = "rejected"
class Platform(str, enum.Enum):
"""投放平台"""
DOUYIN = "douyin"
XIAOHONGSHU = "xiaohongshu"
BILIBILI = "bilibili"
KUAISHOU = "kuaishou"
class ReviewTask(Base, TimestampMixin):
"""审核任务表 (AI 自动审核)"""
__tablename__ = "review_tasks"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
# 视频信息
video_url: Mapped[str] = mapped_column(String(2048), nullable=False)
platform: Mapped[Platform] = mapped_column(
SQLEnum(Platform, name="platform_enum"),
nullable=False,
)
brand_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
creator_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
# 审核状态
status: Mapped[TaskStatus] = mapped_column(
SQLEnum(TaskStatus, name="task_status_enum"),
default=TaskStatus.PENDING,
nullable=False,
index=True,
)
progress: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
current_step: Mapped[str] = mapped_column(String(100), default="等待处理", nullable=False)
# 审核结果
score: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
summary: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
# 违规详情 (JSON 数组)
# [{"type": "forbidden_word", "content": "最好", "severity": "high", ...}]
violations: Mapped[Optional[list]] = mapped_column(JSONType, nullable=True)
# 软性风控提示 (JSON 数组)
soft_warnings: Mapped[Optional[list]] = mapped_column(JSONType, nullable=True)
# 审核要求 (JSON)
requirements: Mapped[Optional[dict]] = mapped_column(JSONType, nullable=True)
# 竞品列表
competitors: Mapped[Optional[list]] = mapped_column(JSONType, nullable=True)
# 错误信息
error_message: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="review_tasks")
manual_task: Mapped[Optional["ManualTask"]] = relationship(
"ManualTask",
back_populates="review_task",
uselist=False,
)
def __repr__(self) -> str:
return f"<ReviewTask(id={self.id}, status={self.status})>"
class ManualTask(Base, TimestampMixin):
"""人工审核任务表"""
__tablename__ = "manual_tasks"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
review_task_id: Mapped[Optional[str]] = mapped_column(
String(64),
ForeignKey("review_tasks.id", ondelete="SET NULL"),
nullable=True,
index=True,
)
# 视频信息 (冗余存储,即使关联的 review_task 被删除也能查看)
video_url: Mapped[Optional[str]] = mapped_column(String(2048), nullable=True)
video_uploaded_at: Mapped[Optional[datetime]] = mapped_column(
DateTime(timezone=True),
nullable=True,
)
platform: Mapped[Platform] = mapped_column(
SQLEnum(Platform, name="platform_enum", create_type=False),
nullable=False,
)
creator_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
# 脚本信息
script_content: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
script_file_url: Mapped[Optional[str]] = mapped_column(String(2048), nullable=True)
script_uploaded_at: Mapped[Optional[datetime]] = mapped_column(
DateTime(timezone=True),
nullable=True,
)
# 任务状态
status: Mapped[TaskStatus] = mapped_column(
SQLEnum(TaskStatus, name="task_status_enum", create_type=False),
default=TaskStatus.PENDING,
nullable=False,
index=True,
)
# 审批结果
approve_comment: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
reject_reason: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
reject_violations: Mapped[Optional[list]] = mapped_column(JSONType, nullable=True)
# 审批人
reviewer_id: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
reviewed_at: Mapped[Optional[datetime]] = mapped_column(
DateTime(timezone=True),
nullable=True,
)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="manual_tasks")
review_task: Mapped[Optional["ReviewTask"]] = relationship(
"ReviewTask",
back_populates="manual_task",
)
def __repr__(self) -> str:
return f"<ManualTask(id={self.id}, status={self.status})>"
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"""
特例审批模型
"""
from typing import TYPE_CHECKING, Optional
from datetime import datetime
from sqlalchemy import String, Text, Boolean, ForeignKey, DateTime, Enum as SQLEnum
from app.models.types import JSONType
from sqlalchemy.orm import Mapped, mapped_column, relationship
import enum
from app.models.base import Base, TimestampMixin
if TYPE_CHECKING:
from app.models.tenant import Tenant
class RiskTargetType(str, enum.Enum):
"""特例目标类型"""
INFLUENCER = "influencer"
ORDER = "order"
CONTENT = "content"
class RiskExceptionStatus(str, enum.Enum):
"""特例审批状态"""
PENDING = "pending"
APPROVED = "approved"
REJECTED = "rejected"
EXPIRED = "expired"
REVOKED = "revoked"
class RiskException(Base, TimestampMixin):
"""特例审批表"""
__tablename__ = "risk_exceptions"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
# 申请信息
applicant_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
apply_time: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
nullable=False,
)
# 目标信息
target_type: Mapped[RiskTargetType] = mapped_column(
SQLEnum(RiskTargetType, name="risk_target_type_enum"),
nullable=False,
)
target_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
risk_rule_id: Mapped[str] = mapped_column(String(64), nullable=False)
# 状态
status: Mapped[RiskExceptionStatus] = mapped_column(
SQLEnum(RiskExceptionStatus, name="risk_exception_status_enum"),
default=RiskExceptionStatus.PENDING,
nullable=False,
index=True,
)
# 有效期
valid_start_time: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
nullable=False,
)
valid_end_time: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
nullable=False,
)
# 申请原因
reason_category: Mapped[str] = mapped_column(String(100), nullable=False)
justification: Mapped[str] = mapped_column(Text, nullable=False)
attachment_url: Mapped[Optional[str]] = mapped_column(String(2048), nullable=True)
# 审批信息
current_approver_id: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
# 审批流转日志 (JSON 数组)
# [{"approver_id": "...", "action": "approve/reject", "comment": "...", "timestamp": "..."}]
approval_chain_log: Mapped[list] = mapped_column(JSONType, default=list, nullable=False)
# 驳回信息
auto_rejected: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
rejection_reason: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
# 最近状态变更时间
last_status_at: Mapped[Optional[datetime]] = mapped_column(
DateTime(timezone=True),
nullable=True,
)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="risk_exceptions")
def __repr__(self) -> str:
return f"<RiskException(id={self.id}, status={self.status})>"
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"""
规则模型
违禁词、白名单、竞品
"""
from typing import TYPE_CHECKING, Optional
from sqlalchemy import String, Text, ForeignKey
from app.models.types import JSONType
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.models.base import Base, TimestampMixin
if TYPE_CHECKING:
from app.models.tenant import Tenant
class ForbiddenWord(Base, TimestampMixin):
"""违禁词表"""
__tablename__ = "forbidden_words"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
word: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
category: Mapped[str] = mapped_column(String(100), nullable=False, index=True)
severity: Mapped[str] = mapped_column(String(50), nullable=False)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="forbidden_words")
def __repr__(self) -> str:
return f"<ForbiddenWord(word={self.word}, category={self.category})>"
class WhitelistItem(Base, TimestampMixin):
"""白名单表"""
__tablename__ = "whitelist_items"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
brand_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
term: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
reason: Mapped[str] = mapped_column(Text, nullable=False)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="whitelist_items")
def __repr__(self) -> str:
return f"<WhitelistItem(term={self.term}, brand_id={self.brand_id})>"
class Competitor(Base, TimestampMixin):
"""竞品表"""
__tablename__ = "competitors"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
tenant_id: Mapped[str] = mapped_column(
String(64),
ForeignKey("tenants.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
brand_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
name: Mapped[str] = mapped_column(String(255), nullable=False)
logo_url: Mapped[Optional[str]] = mapped_column(String(2048), nullable=True)
# 关键词列表 (JSON 数组)
keywords: Mapped[Optional[list]] = mapped_column(JSONType, nullable=True)
# 关联
tenant: Mapped["Tenant"] = relationship("Tenant", back_populates="competitors")
def __repr__(self) -> str:
return f"<Competitor(name={self.name}, brand_id={self.brand_id})>"
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"""
租户模型
"""
from typing import TYPE_CHECKING
from sqlalchemy import String, Boolean
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.models.base import Base, TimestampMixin
if TYPE_CHECKING:
from app.models.ai_config import AIConfig
from app.models.review import ReviewTask, ManualTask
from app.models.rule import ForbiddenWord, WhitelistItem, Competitor
from app.models.risk_exception import RiskException
class Tenant(Base, TimestampMixin):
"""租户表"""
__tablename__ = "tenants"
id: Mapped[str] = mapped_column(String(64), primary_key=True)
name: Mapped[str] = mapped_column(String(255), nullable=False)
is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
# 关联关系
ai_config: Mapped["AIConfig"] = relationship(
"AIConfig",
back_populates="tenant",
uselist=False,
lazy="selectin",
)
review_tasks: Mapped[list["ReviewTask"]] = relationship(
"ReviewTask",
back_populates="tenant",
lazy="selectin",
)
manual_tasks: Mapped[list["ManualTask"]] = relationship(
"ManualTask",
back_populates="tenant",
lazy="selectin",
)
forbidden_words: Mapped[list["ForbiddenWord"]] = relationship(
"ForbiddenWord",
back_populates="tenant",
lazy="selectin",
)
whitelist_items: Mapped[list["WhitelistItem"]] = relationship(
"WhitelistItem",
back_populates="tenant",
lazy="selectin",
)
competitors: Mapped[list["Competitor"]] = relationship(
"Competitor",
back_populates="tenant",
lazy="selectin",
)
risk_exceptions: Mapped[list["RiskException"]] = relationship(
"RiskException",
back_populates="tenant",
lazy="selectin",
)
def __repr__(self) -> str:
return f"<Tenant(id={self.id}, name={self.name})>"
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"""Shared SQLAlchemy column types with cross-database compatibility."""
from sqlalchemy import JSON
from sqlalchemy.dialects.postgresql import JSONB
# Use JSONB on PostgreSQL, fall back to JSON on other databases (e.g., SQLite for tests)
JSONType = JSON().with_variant(JSONB, "postgresql")
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"""
AI 服务配置相关的 Pydantic 模型
"""
from typing import Optional
from decimal import Decimal
from pydantic import BaseModel, Field, SecretStr
from enum import Enum
class AIProvider(str, Enum):
"""支持的 AI 提供商"""
# 中转服务
ONEAPI = "oneapi"
OPENROUTER = "openrouter"
# 直连厂商 - 国际
ANTHROPIC = "anthropic"
OPENAI = "openai"
# 直连厂商 - 国内
DEEPSEEK = "deepseek"
QWEN = "qwen"
DOUBAO = "doubao"
ZHIPU = "zhipu"
MOONSHOT = "moonshot"
# 提供商默认 Base URL
PROVIDER_DEFAULT_URLS = {
AIProvider.ANTHROPIC: "https://api.anthropic.com/v1",
AIProvider.OPENAI: "https://api.openai.com/v1",
AIProvider.DEEPSEEK: "https://api.deepseek.com/v1",
AIProvider.QWEN: "https://dashscope.aliyuncs.com/compatible-mode/v1",
AIProvider.DOUBAO: "https://ark.cn-beijing.volces.com/api/v3",
AIProvider.ZHIPU: "https://open.bigmodel.cn/api/paas/v4",
AIProvider.MOONSHOT: "https://api.moonshot.cn/v1",
}
class ModelCapability(str, Enum):
"""模型能力类型"""
TEXT = "text"
VISION = "vision"
AUDIO = "audio"
# ==================== 请求模型 ====================
class AIModelsConfig(BaseModel):
"""三个模型配置"""
text: str = Field(..., description="文字处理模型")
vision: str = Field(..., description="视频分析模型")
audio: str = Field(..., description="音频解析模型")
class AIParametersConfig(BaseModel):
"""参数配置"""
temperature: float = Field(default=0.7, ge=0, le=1)
max_tokens: int = Field(default=2000, ge=100, le=32000)
class AIConfigUpdate(BaseModel):
"""更新 AI 配置请求"""
provider: AIProvider
base_url: str = Field(..., min_length=1)
api_key: str = Field(..., min_length=1)
models: AIModelsConfig
parameters: AIParametersConfig = Field(default_factory=AIParametersConfig)
class GetModelsRequest(BaseModel):
"""获取模型列表请求"""
provider: AIProvider
base_url: str
api_key: str
class TestConnectionRequest(BaseModel):
"""测试连接请求"""
provider: AIProvider
base_url: str
api_key: str
models: AIModelsConfig
# ==================== 响应模型 ====================
class AIConfigResponse(BaseModel):
"""AI 配置响应"""
provider: str
base_url: str
api_key_masked: str = Field(..., description="脱敏后的 API Key")
models: AIModelsConfig
parameters: AIParametersConfig
available_models: dict[str, list[dict]] = Field(default_factory=dict)
is_configured: bool
last_test_at: Optional[str] = None
last_test_result: Optional[dict] = None
class ModelInfo(BaseModel):
"""模型信息"""
id: str
name: str
class ModelsListResponse(BaseModel):
"""模型列表响应"""
success: bool
models: dict[str, list[ModelInfo]] = Field(default_factory=dict)
error: Optional[str] = None
class ModelTestResult(BaseModel):
"""单个模型测试结果"""
success: bool
latency_ms: Optional[int] = None
error: Optional[str] = None
model: str
class ConnectionTestResponse(BaseModel):
"""测试连接响应"""
success: bool
results: dict[str, ModelTestResult]
message: str
# ==================== 工具函数 ====================
def mask_api_key(api_key: str) -> str:
"""API Key 脱敏"""
if len(api_key) <= 8:
return "****"
return f"{api_key[:4]}****{api_key[-4:]}"
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"""
审核相关的 Pydantic 模型API 契约定义
所有测试和实现必须遵循此契约
"""
from typing import Optional
from datetime import datetime
from pydantic import BaseModel, Field, HttpUrl
from enum import Enum
# ==================== 枚举定义 ====================
class Platform(str, Enum):
"""支持的投放平台"""
DOUYIN = "douyin"
XIAOHONGSHU = "xiaohongshu"
BILIBILI = "bilibili"
KUAISHOU = "kuaishou"
class TaskStatus(str, Enum):
"""任务状态"""
PENDING = "pending"
PROCESSING = "processing"
COMPLETED = "completed"
FAILED = "failed"
APPROVED = "approved"
REJECTED = "rejected"
class RiskLevel(str, Enum):
"""风险等级"""
HIGH = "high" # 法律违规(广告法极限词)
MEDIUM = "medium" # 平台规则违规
LOW = "low" # 品牌规范违规
class ViolationType(str, Enum):
"""违规类型"""
FORBIDDEN_WORD = "forbidden_word" # 违禁词
EFFICACY_CLAIM = "efficacy_claim" # 功效宣称
COMPETITOR_LOGO = "competitor_logo" # 竞品露出
DURATION_SHORT = "duration_short" # 时长不足
MENTION_MISSING = "mention_missing" # 品牌提及不足
BRAND_SAFETY = "brand_safety" # 品牌安全风险
class ViolationSource(str, Enum):
"""违规来源"""
TEXT = "text" # 文本/脚本
SPEECH = "speech" # 语音(ASR
SUBTITLE = "subtitle" # 字幕(OCR
VISUAL = "visual" # 画面(CV
class SoftRiskAction(str, Enum):
"""软性风控动作"""
CONFIRM = "confirm" # 需要二次确认
NOTE = "note" # 需要填写备注
class SoftRiskWarning(BaseModel):
"""软性风控提示(Warn-only"""
code: str = Field(..., description="提示类型代码")
message: str = Field(..., description="提示内容")
action_required: SoftRiskAction = Field(..., description="要求动作")
blocking: bool = Field(default=False, description="是否阻断(默认不阻断)")
context: Optional[dict] = Field(None, description="附加上下文")
class SoftRiskContext(BaseModel):
"""软性风控输入上下文"""
violation_rate: Optional[float] = Field(None, ge=0, le=1, description="违规率")
violation_threshold: Optional[float] = Field(None, ge=0, le=1, description="违规率阈值")
asr_confidence: Optional[float] = Field(None, ge=0, le=1, description="ASR 置信度")
ocr_confidence: Optional[float] = Field(None, ge=0, le=1, description="OCR 置信度")
has_history_violation: Optional[bool] = Field(None, description="是否有历史类似违规")
# ==================== 通用模型 ====================
class Position(BaseModel):
"""文本位置"""
start: int = Field(..., description="起始位置")
end: int = Field(..., description="结束位置")
class Violation(BaseModel):
"""违规项(统一结构)"""
type: ViolationType = Field(..., description="违规类型")
content: str = Field(..., description="违规内容")
severity: RiskLevel = Field(..., description="严重程度")
suggestion: str = Field(..., description="修改建议")
# 文本审核字段
position: Optional[Position] = Field(None, description="文本位置(脚本审核)")
# 视频审核字段
timestamp: Optional[float] = Field(None, description="开始时间戳(秒)")
timestamp_end: Optional[float] = Field(None, description="结束时间戳(秒)")
source: Optional[ViolationSource] = Field(None, description="违规来源(视频审核)")
# ==================== 脚本预审 ====================
class ScriptReviewRequest(BaseModel):
"""脚本预审请求"""
content: str = Field(..., min_length=1, description="脚本内容")
platform: Platform = Field(..., description="投放平台")
brand_id: str = Field(..., description="品牌 ID")
required_points: Optional[list[str]] = Field(None, description="必要卖点列表")
soft_risk_context: Optional[SoftRiskContext] = Field(None, description="软性风控上下文")
class ScriptReviewResponse(BaseModel):
"""
脚本预审响应
结构
- score: 合规分数 0-100
- summary: 整体摘要
- violations: 违规项列表每项包含 suggestion
- missing_points: 遗漏的卖点可选
"""
score: int = Field(..., ge=0, le=100, description="合规分数")
summary: str = Field(..., description="审核摘要")
violations: list[Violation] = Field(default_factory=list, description="违规项列表")
missing_points: Optional[list[str]] = Field(None, description="遗漏的卖点")
soft_warnings: list[SoftRiskWarning] = Field(default_factory=list, description="软性风控提示")
# ==================== 视频审核 ====================
class VideoReviewRequest(BaseModel):
"""视频审核请求"""
video_url: HttpUrl = Field(..., description="视频 URL")
platform: Platform = Field(..., description="投放平台")
brand_id: str = Field(..., description="品牌 ID")
creator_id: str = Field(..., description="达人 ID")
competitors: Optional[list[str]] = Field(None, description="竞品列表")
requirements: Optional[dict] = Field(None, description="审核要求(时长、频次等)")
class VideoReviewSubmitResponse(BaseModel):
"""视频审核提交响应(202 Accepted"""
review_id: str = Field(..., description="审核任务 ID")
status: TaskStatus = Field(default=TaskStatus.PENDING, description="任务状态")
class VideoReviewProgressResponse(BaseModel):
"""视频审核进度响应"""
review_id: str = Field(..., description="审核任务 ID")
status: TaskStatus = Field(..., description="任务状态")
progress: int = Field(..., ge=0, le=100, description="进度百分比")
current_step: str = Field(..., description="当前处理步骤")
class VideoReviewResultResponse(BaseModel):
"""
视频审核结果响应200 OK
结构与脚本审核一致
- score: 合规分数
- summary: 整体摘要
- violations: 违规项列表每项包含 timestamp suggestion
"""
review_id: str = Field(..., description="审核任务 ID")
status: TaskStatus = Field(default=TaskStatus.COMPLETED, description="任务状态")
score: int = Field(..., ge=0, le=100, description="合规分数")
summary: str = Field(..., description="审核摘要")
violations: list[Violation] = Field(default_factory=list, description="违规项列表")
soft_warnings: list[SoftRiskWarning] = Field(default_factory=list, description="软性风控提示")
# ==================== 一致性指标 ====================
class ConsistencyWindow(str, Enum):
"""一致性指标计算周期"""
ROLLING_30D = "rolling_30d"
SNAPSHOT_WEEK = "snapshot_week"
SNAPSHOT_MONTH = "snapshot_month"
class RuleConsistencyMetric(BaseModel):
"""按规则类型的指标"""
rule_type: ViolationType = Field(..., description="规则类型")
total_reviews: int = Field(..., ge=0, description="总审核数")
violation_count: int = Field(..., ge=0, description="违规数")
violation_rate: float = Field(..., ge=0, le=1, description="违规率(0-1)")
class ConsistencyMetricsResponse(BaseModel):
"""一致性指标响应"""
influencer_id: str = Field(..., description="达人 ID")
window: ConsistencyWindow = Field(..., description="计算周期")
period_start: datetime = Field(..., description="周期起始时间")
period_end: datetime = Field(..., description="周期结束时间")
metrics: list[RuleConsistencyMetric] = Field(default_factory=list)
# ==================== 特例审批(风控豁免) ====================
class RiskTargetType(str, Enum):
"""特例目标类型"""
INFLUENCER = "influencer"
ORDER = "order"
CONTENT = "content"
class RiskExceptionStatus(str, Enum):
"""特例审批状态"""
PENDING = "pending"
APPROVED = "approved"
REJECTED = "rejected"
EXPIRED = "expired"
REVOKED = "revoked"
class RiskExceptionCreateRequest(BaseModel):
"""创建特例请求"""
applicant_id: str = Field(..., description="申请人")
target_type: RiskTargetType = Field(..., description="目标类型")
target_id: str = Field(..., description="目标 ID")
risk_rule_id: str = Field(..., description="豁免规则 ID")
reason_category: str = Field(..., description="原因分类")
justification: str = Field(..., min_length=1, description="详细理由")
attachment_url: Optional[str] = Field(None, description="附件链接")
current_approver_id: str = Field(..., description="当前审批人")
valid_start_time: datetime = Field(..., description="生效开始时间")
valid_end_time: datetime = Field(..., description="生效结束时间")
class RiskExceptionRecord(BaseModel):
"""特例记录"""
record_id: str = Field(..., description="记录 ID")
applicant_id: str = Field(..., description="申请人")
apply_time: datetime = Field(..., description="申请时间")
target_type: RiskTargetType = Field(..., description="目标类型")
target_id: str = Field(..., description="目标 ID")
risk_rule_id: str = Field(..., description="豁免规则 ID")
status: RiskExceptionStatus = Field(..., description="状态")
valid_start_time: datetime = Field(..., description="生效开始时间")
valid_end_time: datetime = Field(..., description="生效结束时间")
reason_category: str = Field(..., description="原因分类")
justification: str = Field(..., description="详细理由")
attachment_url: Optional[str] = Field(None, description="附件链接")
current_approver_id: Optional[str] = Field(None, description="当前审批人")
approval_chain_log: list[dict] = Field(default_factory=list, description="审批流转日志")
auto_rejected: bool = Field(default=False, description="是否超时自动拒绝")
rejection_reason: Optional[str] = Field(None, description="驳回原因")
last_status_at: Optional[datetime] = Field(None, description="最近状态变更时间")
class RiskExceptionDecisionRequest(BaseModel):
"""特例审批决策请求"""
approver_id: str = Field(..., description="审批人")
comment: Optional[str] = Field(None, description="审批备注")
# ==================== 审核任务 ====================
class TaskCreateRequest(BaseModel):
"""创建任务请求"""
platform: Platform = Field(..., description="投放平台")
creator_id: str = Field(..., description="达人 ID")
video_url: Optional[HttpUrl] = Field(None, description="视频 URL")
script_content: Optional[str] = Field(None, min_length=1, description="脚本内容")
script_file_url: Optional[HttpUrl] = Field(None, description="脚本文档 URL")
class TaskScriptUploadRequest(BaseModel):
"""上传脚本请求"""
script_content: Optional[str] = Field(None, min_length=1, description="脚本内容")
script_file_url: Optional[HttpUrl] = Field(None, description="脚本文档 URL")
class TaskVideoUploadRequest(BaseModel):
"""上传视频请求"""
video_url: HttpUrl = Field(..., description="视频 URL")
class TaskResponse(BaseModel):
"""任务响应"""
task_id: str = Field(..., description="任务 ID")
video_url: Optional[str] = Field(None, description="视频 URL")
script_content: Optional[str] = Field(None, description="脚本内容")
script_file_url: Optional[str] = Field(None, description="脚本文档 URL")
has_script: bool = Field(..., description="是否已上传脚本")
has_video: bool = Field(..., description="是否已上传视频")
platform: Platform = Field(..., description="投放平台")
creator_id: str = Field(..., description="达人 ID")
status: TaskStatus = Field(..., description="任务状态")
created_at: str = Field(..., description="创建时间")
class TaskListResponse(BaseModel):
"""任务列表响应"""
items: list[TaskResponse] = Field(default_factory=list)
total: int = Field(..., description="总数")
page: int = Field(..., description="当前页")
page_size: int = Field(..., description="每页数量")
class TaskApproveRequest(BaseModel):
"""通过任务请求"""
comment: Optional[str] = Field(None, description="备注")
class TaskRejectRequest(BaseModel):
"""驳回任务请求"""
reason: str = Field(..., min_length=1, description="驳回原因")
violations: list[str] = Field(default_factory=list, description="违规类型列表")
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"""服务层模块"""
from typing import Optional, Any
_openai_import_error: Optional[Exception] = None
try:
from app.services.ai_client import OpenAICompatibleClient, AIResponse, ConnectionTestResult
from app.services.ai_service import AIServiceFactory, get_ai_client_for_tenant
except ModuleNotFoundError as exc: # openai 依赖缺失时允许非 AI 路径正常导入
_openai_import_error = exc
OpenAICompatibleClient = None
AIResponse = None
ConnectionTestResult = None
AIServiceFactory = None
def get_ai_client_for_tenant(*_args: Any, **_kwargs: Any) -> Any:
raise ModuleNotFoundError(
"Optional dependency 'openai' is required for AI client usage."
) from _openai_import_error
# 视频处理服务(无外部依赖)
from app.services.video_download import VideoDownloadService, DownloadResult, get_download_service
from app.services.keyframe import KeyFrameExtractor, KeyFrame, ExtractionResult, get_keyframe_extractor
from app.services.asr import ASRService, VideoASRService, TranscriptionResult
from app.services.vision import VisionAnalysisService, CompetitorLogoDetector, VideoOCRService
from app.services.video_review import VideoReviewService
__all__ = [
# AI 客户端
"OpenAICompatibleClient",
"AIResponse",
"ConnectionTestResult",
"AIServiceFactory",
"get_ai_client_for_tenant",
# 视频下载
"VideoDownloadService",
"DownloadResult",
"get_download_service",
# 关键帧提取
"KeyFrameExtractor",
"KeyFrame",
"ExtractionResult",
"get_keyframe_extractor",
# ASR
"ASRService",
"VideoASRService",
"TranscriptionResult",
# 视觉分析
"VisionAnalysisService",
"CompetitorLogoDetector",
"VideoOCRService",
# 视频审核
"VideoReviewService",
]
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"""
OpenAI 兼容 AI 客户端
支持多种 AI 提供商的统一接口
"""
import asyncio
import time
from typing import Optional
from dataclasses import dataclass
import httpx
from openai import AsyncOpenAI
from app.schemas.ai_config import AIProvider, ModelCapability
@dataclass
class AIResponse:
"""AI 响应"""
content: str
model: str
usage: dict
finish_reason: str
@dataclass
class ConnectionTestResult:
"""连接测试结果"""
success: bool
latency_ms: int
error: Optional[str] = None
class OpenAICompatibleClient:
"""
OpenAI 兼容 API 客户端
支持
- OpenAI
- Azure OpenAI
- Anthropic (通过 OpenAI 兼容层)
- DeepSeek
- Qwen (通义千问)
- Doubao (豆包)
- 各种中转服务 (OneAPI, OpenRouter)
"""
def __init__(
self,
base_url: str,
api_key: str,
provider: str = "openai",
timeout: float = 60.0,
):
self.base_url = base_url.rstrip("/")
self.api_key = api_key
self.provider = provider
self.timeout = timeout
# 创建 OpenAI 客户端
self.client = AsyncOpenAI(
base_url=self.base_url,
api_key=self.api_key,
timeout=timeout,
)
async def chat_completion(
self,
messages: list[dict],
model: str,
temperature: float = 0.7,
max_tokens: int = 2000,
**kwargs,
) -> AIResponse:
"""
聊天补全
Args:
messages: 消息列表 [{"role": "user", "content": "..."}]
model: 模型名称
temperature: 温度参数
max_tokens: 最大 token
Returns:
AIResponse 包含生成的内容
"""
response = await self.client.chat.completions.create(
model=model,
messages=messages,
temperature=temperature,
max_tokens=max_tokens,
**kwargs,
)
choice = response.choices[0]
return AIResponse(
content=choice.message.content or "",
model=response.model,
usage={
"prompt_tokens": response.usage.prompt_tokens if response.usage else 0,
"completion_tokens": response.usage.completion_tokens if response.usage else 0,
"total_tokens": response.usage.total_tokens if response.usage else 0,
},
finish_reason=choice.finish_reason or "stop",
)
async def vision_analysis(
self,
image_urls: list[str],
prompt: str,
model: str,
temperature: float = 0.3,
max_tokens: int = 2000,
) -> AIResponse:
"""
视觉分析图像理解
Args:
image_urls: 图像 URL 列表
prompt: 分析提示
model: 视觉模型名称
Returns:
AIResponse 包含分析结果
"""
# 构建多模态消息
content = [{"type": "text", "text": prompt}]
for url in image_urls:
content.append({
"type": "image_url",
"image_url": {"url": url},
})
messages = [{"role": "user", "content": content}]
return await self.chat_completion(
messages=messages,
model=model,
temperature=temperature,
max_tokens=max_tokens,
)
async def audio_transcription(
self,
audio_url: str,
model: str = "whisper-1",
language: str = "zh",
) -> AIResponse:
"""
音频转写 (ASR)
Args:
audio_url: 音频文件 URL
model: 转写模型
language: 语言代码
Returns:
AIResponse 包含转写文本
"""
# 下载音频文件
async with httpx.AsyncClient() as http_client:
response = await http_client.get(audio_url, timeout=30)
response.raise_for_status()
audio_data = response.content
# 调用 Whisper API
transcription = await self.client.audio.transcriptions.create(
model=model,
file=("audio.mp3", audio_data, "audio/mpeg"),
language=language,
)
return AIResponse(
content=transcription.text,
model=model,
usage={"prompt_tokens": 0, "completion_tokens": 0, "total_tokens": 0},
finish_reason="stop",
)
async def test_connection(
self,
model: str,
capability: ModelCapability = ModelCapability.TEXT,
) -> ConnectionTestResult:
"""
测试模型连接
Args:
model: 模型名称
capability: 模型能力类型
Returns:
ConnectionTestResult 包含测试结果
"""
start_time = time.time()
try:
if capability == ModelCapability.AUDIO:
# 音频模型无法简单测试,只验证 API 可达
async with httpx.AsyncClient() as http_client:
response = await http_client.get(
f"{self.base_url}/models",
headers={"Authorization": f"Bearer {self.api_key}"},
timeout=10,
)
response.raise_for_status()
latency_ms = int((time.time() - start_time) * 1000)
return ConnectionTestResult(success=True, latency_ms=latency_ms)
elif capability == ModelCapability.VISION:
# 视觉模型测试:发送简单的文本请求
response = await self.chat_completion(
messages=[{"role": "user", "content": "Hi"}],
model=model,
max_tokens=5,
)
else:
# 文本模型测试
response = await self.chat_completion(
messages=[{"role": "user", "content": "Hi"}],
model=model,
max_tokens=5,
)
latency_ms = int((time.time() - start_time) * 1000)
return ConnectionTestResult(success=True, latency_ms=latency_ms)
except Exception as e:
latency_ms = int((time.time() - start_time) * 1000)
return ConnectionTestResult(
success=False,
latency_ms=latency_ms,
error=str(e),
)
async def list_models(self) -> dict[str, list[dict]]:
"""
获取可用模型列表
Returns:
按能力分类的模型列表
{"text": [...], "vision": [...], "audio": [...]}
"""
try:
models = await self.client.models.list()
# 已知模型能力映射
known_capabilities = {
# OpenAI
"gpt-4o": ["text", "vision"],
"gpt-4o-mini": ["text", "vision"],
"gpt-4-turbo": ["text", "vision"],
"gpt-4": ["text"],
"gpt-3.5-turbo": ["text"],
"whisper-1": ["audio"],
# Claude (通过兼容层)
"claude-3-opus": ["text", "vision"],
"claude-3-sonnet": ["text", "vision"],
"claude-3-haiku": ["text", "vision"],
# DeepSeek
"deepseek-chat": ["text"],
"deepseek-coder": ["text"],
# Qwen
"qwen-turbo": ["text"],
"qwen-plus": ["text"],
"qwen-max": ["text"],
"qwen-vl-plus": ["vision"],
"qwen-vl-max": ["vision"],
# Doubao
"doubao-pro": ["text"],
"doubao-lite": ["text"],
}
result: dict[str, list[dict]] = {
"text": [],
"vision": [],
"audio": [],
}
for model in models.data:
model_id = model.id
capabilities = known_capabilities.get(model_id, ["text"])
for cap in capabilities:
if cap in result:
result[cap].append({
"id": model_id,
"name": model_id.replace("-", " ").title(),
})
return result
except Exception:
# 如果无法获取模型列表,返回预设列表
return {
"text": [
{"id": "gpt-4o", "name": "GPT-4o"},
{"id": "gpt-4o-mini", "name": "GPT-4o Mini"},
{"id": "deepseek-chat", "name": "DeepSeek Chat"},
],
"vision": [
{"id": "gpt-4o", "name": "GPT-4o"},
{"id": "qwen-vl-max", "name": "Qwen VL Max"},
],
"audio": [
{"id": "whisper-1", "name": "Whisper"},
],
}
async def close(self):
"""关闭客户端"""
try:
await self.client.close()
except Exception:
# 关闭失败不应影响主流程
pass
# 便捷函数
async def create_ai_client(
base_url: str,
api_key: str,
provider: str = "openai",
) -> OpenAICompatibleClient:
"""创建 AI 客户端"""
return OpenAICompatibleClient(
base_url=base_url,
api_key=api_key,
provider=provider,
)
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"""
AI 服务工厂
根据租户配置创建和管理 AI 客户端
"""
from typing import Optional
from cachetools import TTLCache
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.models.ai_config import AIConfig
from app.services.ai_client import OpenAICompatibleClient
from app.utils.crypto import decrypt_api_key
class AIServiceFactory:
"""
AI 服务工厂
根据租户的 AI 配置创建对应的 AI 客户端
使用 TTL 缓存避免频繁创建客户端
"""
# 客户端缓存,TTL 10 分钟
_cache: TTLCache = TTLCache(maxsize=100, ttl=600)
@classmethod
async def get_client(
cls,
tenant_id: str,
db: AsyncSession,
) -> Optional[OpenAICompatibleClient]:
"""
获取租户的 AI 客户端
Args:
tenant_id: 租户 ID
db: 数据库会话
Returns:
AI 客户端实例未配置返回 None
"""
# 检查缓存
cache_key = f"ai_client:{tenant_id}"
if cache_key in cls._cache:
return cls._cache[cache_key]
# 从数据库获取配置
result = await db.execute(
select(AIConfig).where(
AIConfig.tenant_id == tenant_id,
AIConfig.is_configured == True,
)
)
config = result.scalar_one_or_none()
if not config:
return None
# 解密 API Key
api_key = decrypt_api_key(config.api_key_encrypted)
# 创建客户端
client = OpenAICompatibleClient(
base_url=config.base_url,
api_key=api_key,
provider=config.provider,
)
# 缓存客户端
cls._cache[cache_key] = client
return client
@classmethod
def invalidate_cache(cls, tenant_id: str) -> None:
"""
使缓存失效
当租户更新 AI 配置时调用
"""
cache_key = f"ai_client:{tenant_id}"
if cache_key in cls._cache:
del cls._cache[cache_key]
@classmethod
def clear_cache(cls) -> None:
"""清空所有缓存"""
cls._cache.clear()
@classmethod
async def get_config(
cls,
tenant_id: str,
db: AsyncSession,
) -> Optional[AIConfig]:
"""
获取租户的 AI 配置
Args:
tenant_id: 租户 ID
db: 数据库会话
Returns:
AI 配置模型未配置返回 None
"""
result = await db.execute(
select(AIConfig).where(AIConfig.tenant_id == tenant_id)
)
return result.scalar_one_or_none()
@classmethod
async def create_or_update_config(
cls,
tenant_id: str,
provider: str,
base_url: str,
api_key_encrypted: str,
models: dict,
temperature: float,
max_tokens: int,
db: AsyncSession,
) -> AIConfig:
"""
创建或更新 AI 配置
Args:
tenant_id: 租户 ID
provider: 提供商
base_url: API 地址
api_key_encrypted: 加密的 API Key
models: 模型配置
temperature: 温度参数
max_tokens: 最大 token
db: 数据库会话
Returns:
更新后的配置
"""
# 查找现有配置
result = await db.execute(
select(AIConfig).where(AIConfig.tenant_id == tenant_id)
)
config = result.scalar_one_or_none()
if config:
# 更新现有配置
config.provider = provider
config.base_url = base_url
config.api_key_encrypted = api_key_encrypted
config.models = models
config.temperature = temperature
config.max_tokens = max_tokens
config.is_configured = True
else:
# 创建新配置
config = AIConfig(
tenant_id=tenant_id,
provider=provider,
base_url=base_url,
api_key_encrypted=api_key_encrypted,
models=models,
temperature=temperature,
max_tokens=max_tokens,
is_configured=True,
)
db.add(config)
await db.flush()
# 使缓存失效
cls.invalidate_cache(tenant_id)
return config
# 便捷函数
async def get_ai_client_for_tenant(
tenant_id: str,
db: AsyncSession,
) -> Optional[OpenAICompatibleClient]:
"""获取租户的 AI 客户端"""
return await AIServiceFactory.get_client(tenant_id, db)
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"""
ASR 语音转写服务
集成 Whisper API 实现音频转写
"""
import asyncio
import os
import tempfile
from dataclasses import dataclass, field
from typing import Optional
import httpx
@dataclass
class TranscriptSegment:
"""转写片段"""
text: str
start: float # 开始时间(秒)
end: float # 结束时间(秒)
confidence: float = 1.0
@dataclass
class TranscriptionResult:
"""转写结果"""
success: bool
text: str = "" # 完整文本
segments: list[TranscriptSegment] = field(default_factory=list)
language: str = "zh"
duration: float = 0.0
error: Optional[str] = None
class ASRService:
"""ASR 语音转写服务"""
def __init__(
self,
api_key: str,
base_url: str = "https://api.openai.com/v1",
model: str = "whisper-1",
timeout: float = 300.0,
):
"""
初始化 ASR 服务
Args:
api_key: API Key
base_url: API 基础 URL
model: 模型名称
timeout: 请求超时
"""
self.api_key = api_key
self.base_url = base_url.rstrip("/")
self.model = model
self.timeout = timeout
async def transcribe_file(
self,
audio_path: str,
language: str = "zh",
response_format: str = "verbose_json",
) -> TranscriptionResult:
"""
转写音频文件
Args:
audio_path: 音频文件路径
language: 语言代码
response_format: 响应格式
Returns:
TranscriptionResult: 转写结果
"""
if not os.path.exists(audio_path):
return TranscriptionResult(
success=False,
error=f"文件不存在: {audio_path}",
)
try:
async with httpx.AsyncClient(
timeout=httpx.Timeout(self.timeout)
) as client:
with open(audio_path, "rb") as f:
files = {"file": (os.path.basename(audio_path), f, "audio/mpeg")}
data = {
"model": self.model,
"language": language,
"response_format": response_format,
}
response = await client.post(
f"{self.base_url}/audio/transcriptions",
headers={"Authorization": f"Bearer {self.api_key}"},
files=files,
data=data,
)
if response.status_code != 200:
return TranscriptionResult(
success=False,
error=f"API 错误 {response.status_code}: {response.text[:200]}",
)
result = response.json()
return self._parse_response(result, language)
except Exception as e:
return TranscriptionResult(
success=False,
error=str(e),
)
async def transcribe_url(
self,
audio_url: str,
language: str = "zh",
) -> TranscriptionResult:
"""
转写远程音频
Args:
audio_url: 音频 URL
language: 语言代码
Returns:
TranscriptionResult: 转写结果
"""
# 下载音频到临时文件
temp_path = None
try:
async with httpx.AsyncClient(
timeout=httpx.Timeout(60.0),
follow_redirects=True,
) as client:
response = await client.get(audio_url)
if response.status_code != 200:
return TranscriptionResult(
success=False,
error=f"下载音频失败: HTTP {response.status_code}",
)
# 写入临时文件
with tempfile.NamedTemporaryFile(
suffix=".mp3",
delete=False,
) as f:
f.write(response.content)
temp_path = f.name
# 转写
result = await self.transcribe_file(temp_path, language)
return result
except Exception as e:
return TranscriptionResult(
success=False,
error=str(e),
)
finally:
# 清理临时文件
if temp_path and os.path.exists(temp_path):
try:
os.remove(temp_path)
except OSError:
pass
def _parse_response(
self,
response: dict,
language: str,
) -> TranscriptionResult:
"""解析 API 响应"""
text = response.get("text", "")
duration = response.get("duration", 0.0)
segments = []
for seg in response.get("segments", []):
segments.append(TranscriptSegment(
text=seg.get("text", "").strip(),
start=seg.get("start", 0.0),
end=seg.get("end", 0.0),
confidence=seg.get("confidence", 1.0) if "confidence" in seg else 1.0,
))
# 如果没有分段信息,创建单个分段
if not segments and text:
segments = [TranscriptSegment(
text=text,
start=0.0,
end=duration,
)]
return TranscriptionResult(
success=True,
text=text,
segments=segments,
language=language,
duration=duration,
)
class AudioExtractor:
"""从视频中提取音频"""
def __init__(self, ffmpeg_path: str = "ffmpeg"):
self.ffmpeg_path = ffmpeg_path
async def extract_audio(
self,
video_path: str,
output_path: Optional[str] = None,
format: str = "mp3",
sample_rate: int = 16000,
) -> Optional[str]:
"""
从视频中提取音频
Args:
video_path: 视频文件路径
output_path: 输出路径默认生成临时文件
format: 输出格式
sample_rate: 采样率
Returns:
音频文件路径失败返回 None
"""
import shutil
if not shutil.which(self.ffmpeg_path):
return None
if output_path is None:
output_path = tempfile.mktemp(suffix=f".{format}")
cmd = [
self.ffmpeg_path,
"-i", video_path,
"-vn", # 不要视频
"-acodec", "libmp3lame" if format == "mp3" else "pcm_s16le",
"-ar", str(sample_rate),
"-ac", "1", # 单声道
"-y",
output_path,
]
try:
process = await asyncio.create_subprocess_exec(
*cmd,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE,
)
_, stderr = await process.communicate()
if process.returncode != 0:
return None
return output_path
except Exception:
return None
class VideoASRService:
"""视频 ASR 服务(组合音频提取和转写)"""
def __init__(
self,
api_key: str,
base_url: str = "https://api.openai.com/v1",
model: str = "whisper-1",
):
self.asr = ASRService(api_key, base_url, model)
self.audio_extractor = AudioExtractor()
async def transcribe_video(
self,
video_path: str,
language: str = "zh",
) -> TranscriptionResult:
"""
转写视频中的语音
Args:
video_path: 视频文件路径
language: 语言代码
Returns:
TranscriptionResult: 转写结果
"""
# 提取音频
audio_path = await self.audio_extractor.extract_audio(video_path)
if not audio_path:
return TranscriptionResult(
success=False,
error="音频提取失败,请确保 FFmpeg 已安装",
)
try:
# 转写
result = await self.asr.transcribe_file(audio_path, language)
return result
finally:
# 清理临时音频
if os.path.exists(audio_path):
try:
os.remove(audio_path)
except OSError:
pass
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"""
健康检查服务
提供依赖注入接口便于测试 mock
"""
from typing import Protocol, Optional
from sqlalchemy import text
from sqlalchemy.ext.asyncio import AsyncEngine
class HealthChecker(Protocol):
"""健康检查协议(用于类型提示)"""
async def check_database(self) -> bool:
"""检查数据库连接"""
...
async def check_redis(self) -> bool:
"""检查 Redis 连接"""
...
async def check_all(self) -> dict[str, bool]:
"""检查所有依赖"""
...
class DefaultHealthChecker:
"""
默认健康检查实现
生产环境使用检查真实依赖
"""
# 默认连接超时(秒)
DEFAULT_CONNECT_TIMEOUT = 5
def __init__(
self,
db_engine: Optional[AsyncEngine] = None,
redis_url: Optional[str] = None,
connect_timeout: float = DEFAULT_CONNECT_TIMEOUT,
):
self._db_engine = db_engine
self._redis_url = redis_url
self._connect_timeout = connect_timeout
async def check_database(self) -> bool:
"""
检查数据库连接
Returns:
bool: 数据库是否可用
"""
if self._db_engine is None:
# 未配置数据库引擎,尝试从全局获取
try:
from app.database import engine
self._db_engine = engine
except Exception:
return False
try:
async with self._db_engine.connect() as conn:
await conn.execute(text("SELECT 1"))
return True
except Exception:
return False
async def check_redis(self) -> bool:
"""
检查 Redis 连接
Returns:
bool: Redis 是否可用
"""
if self._redis_url is None:
# 未配置 Redis URL,尝试从配置获取
try:
from app.config import settings
self._redis_url = settings.REDIS_URL
except Exception:
return False
try:
import redis.asyncio as aioredis
client = aioredis.from_url(
self._redis_url,
socket_connect_timeout=self._connect_timeout
)
try:
await client.ping()
return True
finally:
await client.aclose()
except Exception:
return False
async def check_all(self) -> dict[str, bool]:
"""检查所有依赖"""
return {
"database": await self.check_database(),
"redis": await self.check_redis(),
}
class MockHealthChecker:
"""
Mock 健康检查实现
测试环境使用可配置返回值
"""
def __init__(
self,
database_healthy: bool = True,
redis_healthy: bool = True,
):
self._database_healthy = database_healthy
self._redis_healthy = redis_healthy
async def check_database(self) -> bool:
return self._database_healthy
async def check_redis(self) -> bool:
return self._redis_healthy
async def check_all(self) -> dict[str, bool]:
return {
"database": self._database_healthy,
"redis": self._redis_healthy,
}
def get_health_checker() -> HealthChecker:
"""
获取健康检查器依赖
生产环境返回 DefaultHealthChecker检查真实依赖
测试环境通过 app.dependency_overrides 替换
"""
return DefaultHealthChecker()
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"""
关键帧提取服务
使用 FFmpeg 从视频中提取关键帧用于视觉分析
"""
import asyncio
import base64
import os
import shutil
import tempfile
from dataclasses import dataclass, field
from pathlib import Path
from typing import Optional
@dataclass
class KeyFrame:
"""关键帧数据"""
timestamp: float # 时间戳(秒)
file_path: str # 帧图片路径
width: int = 0
height: int = 0
def to_base64(self) -> str:
"""将帧图片转为 base64"""
with open(self.file_path, "rb") as f:
return base64.b64encode(f.read()).decode("utf-8")
def to_data_url(self) -> str:
"""将帧图片转为 data URL"""
return f"data:image/jpeg;base64,{self.to_base64()}"
@dataclass
class ExtractionResult:
"""提取结果"""
success: bool
frames: list[KeyFrame] = field(default_factory=list)
video_duration: float = 0.0
error: Optional[str] = None
output_dir: Optional[str] = None
class KeyFrameExtractor:
"""关键帧提取器"""
def __init__(
self,
ffmpeg_path: str = "ffmpeg",
ffprobe_path: str = "ffprobe",
output_format: str = "jpg",
quality: int = 2, # 1-31, 越小质量越高
):
"""
初始化提取器
Args:
ffmpeg_path: ffmpeg 可执行文件路径
ffprobe_path: ffprobe 可执行文件路径
output_format: 输出格式 (jpg/png)
quality: JPEG 质量 (1-31)
"""
self.ffmpeg_path = ffmpeg_path
self.ffprobe_path = ffprobe_path
self.output_format = output_format
self.quality = quality
def _check_ffmpeg(self) -> bool:
"""检查 FFmpeg 是否可用"""
return shutil.which(self.ffmpeg_path) is not None
async def get_video_info(self, video_path: str) -> dict:
"""
获取视频信息
Args:
video_path: 视频文件路径
Returns:
视频信息字典
"""
cmd = [
self.ffprobe_path,
"-v", "quiet",
"-print_format", "json",
"-show_format",
"-show_streams",
video_path,
]
try:
process = await asyncio.create_subprocess_exec(
*cmd,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE,
)
stdout, _ = await process.communicate()
import json
info = json.loads(stdout.decode())
# 提取关键信息
duration = float(info.get("format", {}).get("duration", 0))
video_stream = next(
(s for s in info.get("streams", []) if s.get("codec_type") == "video"),
{}
)
return {
"duration": duration,
"width": video_stream.get("width", 0),
"height": video_stream.get("height", 0),
"fps": eval(video_stream.get("r_frame_rate", "0/1")) if "/" in video_stream.get("r_frame_rate", "0") else 0,
"codec": video_stream.get("codec_name", ""),
}
except Exception as e:
return {"error": str(e), "duration": 0}
async def extract_at_intervals(
self,
video_path: str,
interval_seconds: float = 1.0,
max_frames: int = 60,
output_dir: Optional[str] = None,
) -> ExtractionResult:
"""
按时间间隔提取帧
Args:
video_path: 视频文件路径
interval_seconds: 提取间隔
max_frames: 最大帧数
output_dir: 输出目录默认创建临时目录
Returns:
ExtractionResult: 提取结果
"""
if not self._check_ffmpeg():
return ExtractionResult(
success=False,
error="FFmpeg 未安装或不在 PATH 中",
)
# 获取视频信息
video_info = await self.get_video_info(video_path)
duration = video_info.get("duration", 0)
if duration <= 0:
return ExtractionResult(
success=False,
error="无法获取视频时长",
)
# 创建输出目录
if output_dir is None:
output_dir = tempfile.mkdtemp(prefix="keyframes_")
else:
Path(output_dir).mkdir(parents=True, exist_ok=True)
# 计算实际帧数
frame_count = min(int(duration / interval_seconds), max_frames)
if frame_count <= 0:
frame_count = 1
# 使用 FFmpeg 提取帧
output_pattern = os.path.join(output_dir, f"frame_%04d.{self.output_format}")
cmd = [
self.ffmpeg_path,
"-i", video_path,
"-vf", f"fps=1/{interval_seconds}",
"-frames:v", str(frame_count),
"-q:v", str(self.quality),
"-y",
output_pattern,
]
try:
process = await asyncio.create_subprocess_exec(
*cmd,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE,
)
_, stderr = await process.communicate()
if process.returncode != 0:
return ExtractionResult(
success=False,
error=f"FFmpeg 错误: {stderr.decode()[:200]}",
output_dir=output_dir,
)
# 收集提取的帧
frames = []
for i in range(1, frame_count + 1):
frame_path = os.path.join(output_dir, f"frame_{i:04d}.{self.output_format}")
if os.path.exists(frame_path):
timestamp = (i - 1) * interval_seconds
frames.append(KeyFrame(
timestamp=timestamp,
file_path=frame_path,
width=video_info.get("width", 0),
height=video_info.get("height", 0),
))
return ExtractionResult(
success=True,
frames=frames,
video_duration=duration,
output_dir=output_dir,
)
except Exception as e:
return ExtractionResult(
success=False,
error=str(e),
output_dir=output_dir,
)
async def extract_scene_changes(
self,
video_path: str,
threshold: float = 0.3,
max_frames: int = 30,
output_dir: Optional[str] = None,
) -> ExtractionResult:
"""
基于场景变化提取关键帧
Args:
video_path: 视频文件路径
threshold: 场景变化阈值 (0-1)
max_frames: 最大帧数
output_dir: 输出目录
Returns:
ExtractionResult: 提取结果
"""
if not self._check_ffmpeg():
return ExtractionResult(
success=False,
error="FFmpeg 未安装或不在 PATH 中",
)
video_info = await self.get_video_info(video_path)
duration = video_info.get("duration", 0)
if output_dir is None:
output_dir = tempfile.mkdtemp(prefix="keyframes_")
else:
Path(output_dir).mkdir(parents=True, exist_ok=True)
output_pattern = os.path.join(output_dir, f"scene_%04d.{self.output_format}")
# 使用场景检测滤镜
cmd = [
self.ffmpeg_path,
"-i", video_path,
"-vf", f"select='gt(scene,{threshold})',showinfo",
"-vsync", "vfr",
"-frames:v", str(max_frames),
"-q:v", str(self.quality),
"-y",
output_pattern,
]
try:
process = await asyncio.create_subprocess_exec(
*cmd,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE,
)
_, stderr = await process.communicate()
# 解析时间戳
timestamps = []
for line in stderr.decode().split("\n"):
if "pts_time:" in line:
try:
pts_part = line.split("pts_time:")[1].split()[0]
timestamps.append(float(pts_part))
except (IndexError, ValueError):
pass
# 收集帧
frames = []
for i, ts in enumerate(timestamps[:max_frames], 1):
frame_path = os.path.join(output_dir, f"scene_{i:04d}.{self.output_format}")
if os.path.exists(frame_path):
frames.append(KeyFrame(
timestamp=ts,
file_path=frame_path,
width=video_info.get("width", 0),
height=video_info.get("height", 0),
))
# 如果场景检测帧太少,补充均匀采样
if len(frames) < 5 and duration > 0:
interval_result = await self.extract_at_intervals(
video_path,
interval_seconds=duration / 10,
max_frames=10,
output_dir=output_dir,
)
if interval_result.success:
# 合并并去重
existing_ts = {f.timestamp for f in frames}
for f in interval_result.frames:
if f.timestamp not in existing_ts:
frames.append(f)
frames.sort(key=lambda x: x.timestamp)
return ExtractionResult(
success=True,
frames=frames[:max_frames],
video_duration=duration,
output_dir=output_dir,
)
except Exception as e:
return ExtractionResult(
success=False,
error=str(e),
output_dir=output_dir,
)
def cleanup(self, output_dir: str) -> bool:
"""
清理提取的临时文件
Args:
output_dir: 输出目录
Returns:
是否成功删除
"""
try:
if os.path.exists(output_dir):
shutil.rmtree(output_dir)
return True
except OSError:
pass
return False
# 全局实例
_extractor: Optional[KeyFrameExtractor] = None
def get_keyframe_extractor() -> KeyFrameExtractor:
"""获取关键帧提取器单例"""
global _extractor
if _extractor is None:
_extractor = KeyFrameExtractor()
return _extractor
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"""
风险分类服务
根据违规类型判断风险等级
"""
from app.schemas.review import ViolationType, RiskLevel
def classify_risk_level(violation_type: ViolationType) -> RiskLevel:
"""
根据违规类型分类风险等级
规则
- 高风险 (HIGH): 法律违规广告法极限词功效宣称
- 中风险 (MEDIUM): 平台规则违规竞品露出时长不足
- 低风险 (LOW): 品牌规范违规品牌提及不足
Args:
violation_type: 违规类型
Returns:
RiskLevel: 风险等级
"""
high_risk_types = {
ViolationType.FORBIDDEN_WORD,
ViolationType.EFFICACY_CLAIM,
}
medium_risk_types = {
ViolationType.COMPETITOR_LOGO,
ViolationType.DURATION_SHORT,
ViolationType.BRAND_SAFETY,
}
low_risk_types = {
ViolationType.MENTION_MISSING,
}
if violation_type in high_risk_types:
return RiskLevel.HIGH
elif violation_type in medium_risk_types:
return RiskLevel.MEDIUM
elif violation_type in low_risk_types:
return RiskLevel.LOW
else:
# 默认中风险
return RiskLevel.MEDIUM
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"""
特例审批服务
超时策略审批流程
"""
from datetime import datetime, timedelta, timezone
from app.schemas.review import (
RiskExceptionRecord,
RiskExceptionStatus,
)
# 超时时间(小时)
TIMEOUT_HOURS = 48
def apply_timeout_policy(
record: RiskExceptionRecord,
current_time: datetime,
) -> RiskExceptionRecord:
"""
应用超时策略
规则
- 超过 48 小时未审批 自动拒绝
- 记录自动拒绝原因
Args:
record: 特例记录
current_time: 当前时间
Returns:
更新后的记录
"""
# 只处理待审批状态
if record.status != RiskExceptionStatus.PENDING:
return record
# 计算时间差
apply_time = record.apply_time
if isinstance(apply_time, str):
apply_time = datetime.fromisoformat(apply_time.replace("Z", "+00:00"))
# 确保时区一致
if apply_time.tzinfo is None:
apply_time = apply_time.replace(tzinfo=timezone.utc)
if current_time.tzinfo is None:
current_time = current_time.replace(tzinfo=timezone.utc)
elapsed = current_time - apply_time
if elapsed > timedelta(hours=TIMEOUT_HOURS):
# 超时自动拒绝
return RiskExceptionRecord(
record_id=record.record_id,
applicant_id=record.applicant_id,
apply_time=record.apply_time,
target_type=record.target_type,
target_id=record.target_id,
risk_rule_id=record.risk_rule_id,
status=RiskExceptionStatus.REJECTED,
valid_start_time=record.valid_start_time,
valid_end_time=record.valid_end_time,
reason_category=record.reason_category,
justification=record.justification,
attachment_url=record.attachment_url,
current_approver_id=record.current_approver_id,
approval_chain_log=record.approval_chain_log,
auto_rejected=True,
rejection_reason="timeout",
last_status_at=current_time,
)
return record
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"""
软性风控服务
临界值低置信度历史记录触发警告
"""
from app.schemas.review import (
SoftRiskContext,
SoftRiskWarning,
SoftRiskAction,
)
def evaluate_soft_risk(context: SoftRiskContext) -> list[SoftRiskWarning]:
"""
评估软性风控
规则
- 违规率接近阈值90% 以上 二次确认
- ASR/OCR 置信度 60%-80% 备注提示
- 有历史类似违规 备注提示
Args:
context: 软性风控上下文
Returns:
警告列表可能为空
"""
warnings: list[SoftRiskWarning] = []
# 1. 临界值检测
if (
context.violation_rate is not None
and context.violation_threshold is not None
and context.violation_threshold > 0
):
ratio = context.violation_rate / context.violation_threshold
# 使用 round 避免浮点数精度问题 (0.045/0.05 = 0.8999999999999999)
ratio = round(ratio, 10)
if ratio >= 0.9 and ratio < 1.0:
warnings.append(SoftRiskWarning(
code="NEAR_THRESHOLD",
message=f"违规率 {context.violation_rate:.1%} 接近阈值 {context.violation_threshold:.1%}",
action_required=SoftRiskAction.CONFIRM,
blocking=False,
))
# 2. ASR 低置信度检测
if context.asr_confidence is not None:
if 0.6 <= context.asr_confidence < 0.8:
warnings.append(SoftRiskWarning(
code="LOW_CONFIDENCE_ASR",
message=f"语音识别置信度较低 ({context.asr_confidence:.0%}),建议人工复核",
action_required=SoftRiskAction.NOTE,
blocking=False,
))
# 3. OCR 低置信度检测
if context.ocr_confidence is not None:
if 0.6 <= context.ocr_confidence < 0.8:
warnings.append(SoftRiskWarning(
code="LOW_CONFIDENCE_OCR",
message=f"字幕识别置信度较低 ({context.ocr_confidence:.0%}),建议人工复核",
action_required=SoftRiskAction.NOTE,
blocking=False,
))
# 4. 历史违规检测
if context.has_history_violation:
warnings.append(SoftRiskWarning(
code="HISTORY_RISK",
message="该达人/内容存在历史类似违规记录",
action_required=SoftRiskAction.NOTE,
blocking=False,
))
return warnings
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"""
视频下载服务
URL 下载视频到临时目录支持重试和进度回调
"""
import asyncio
import hashlib
import os
import tempfile
from dataclasses import dataclass
from pathlib import Path
from typing import Callable, Optional
import httpx
@dataclass
class DownloadResult:
"""下载结果"""
success: bool
file_path: Optional[str] = None
file_size: int = 0
content_type: Optional[str] = None
error: Optional[str] = None
class VideoDownloadService:
"""视频下载服务"""
def __init__(
self,
temp_dir: Optional[str] = None,
max_file_size: int = 500 * 1024 * 1024, # 500MB
timeout: float = 300.0, # 5 分钟
chunk_size: int = 1024 * 1024, # 1MB
):
"""
初始化下载服务
Args:
temp_dir: 临时目录默认使用系统临时目录
max_file_size: 最大文件大小字节
timeout: 下载超时
chunk_size: 分块大小字节
"""
self.temp_dir = temp_dir or tempfile.gettempdir()
self.max_file_size = max_file_size
self.timeout = timeout
self.chunk_size = chunk_size
# 确保临时目录存在
Path(self.temp_dir).mkdir(parents=True, exist_ok=True)
def _generate_filename(self, url: str, content_type: Optional[str] = None) -> str:
"""根据 URL 生成唯一文件名"""
url_hash = hashlib.md5(url.encode()).hexdigest()[:12]
# 根据 content-type 确定扩展名
ext = ".mp4"
if content_type:
ext_map = {
"video/mp4": ".mp4",
"video/webm": ".webm",
"video/quicktime": ".mov",
"video/x-msvideo": ".avi",
"video/x-matroska": ".mkv",
}
ext = ext_map.get(content_type, ".mp4")
return f"video_{url_hash}{ext}"
async def download(
self,
url: str,
progress_callback: Optional[Callable[[int, int], None]] = None,
max_retries: int = 3,
) -> DownloadResult:
"""
下载视频文件
Args:
url: 视频 URL
progress_callback: 进度回调函数 (downloaded_bytes, total_bytes)
max_retries: 最大重试次数
Returns:
DownloadResult: 下载结果
"""
last_error = None
for attempt in range(max_retries):
try:
result = await self._download_once(url, progress_callback)
if result.success:
return result
last_error = result.error
except Exception as e:
last_error = str(e)
# 重试前等待
if attempt < max_retries - 1:
await asyncio.sleep(2 ** attempt)
return DownloadResult(
success=False,
error=f"下载失败(已重试 {max_retries} 次): {last_error}",
)
async def _download_once(
self,
url: str,
progress_callback: Optional[Callable[[int, int], None]] = None,
) -> DownloadResult:
"""单次下载尝试"""
async with httpx.AsyncClient(
timeout=httpx.Timeout(self.timeout),
follow_redirects=True,
) as client:
# 先获取文件信息
head_resp = await client.head(url)
if head_resp.status_code >= 400:
return DownloadResult(
success=False,
error=f"HTTP {head_resp.status_code}",
)
content_type = head_resp.headers.get("content-type", "")
content_length = int(head_resp.headers.get("content-length", 0))
# 检查文件大小
if content_length > self.max_file_size:
return DownloadResult(
success=False,
error=f"文件过大: {content_length / 1024 / 1024:.1f}MB > {self.max_file_size / 1024 / 1024:.1f}MB",
)
# 检查是否为视频类型
if content_type and not content_type.startswith("video/"):
return DownloadResult(
success=False,
error=f"非视频文件类型: {content_type}",
)
# 生成本地文件路径
filename = self._generate_filename(url, content_type)
file_path = os.path.join(self.temp_dir, filename)
# 如果文件已存在且大小匹配,直接返回
if os.path.exists(file_path):
existing_size = os.path.getsize(file_path)
if existing_size == content_length:
return DownloadResult(
success=True,
file_path=file_path,
file_size=existing_size,
content_type=content_type,
)
# 流式下载
downloaded = 0
async with client.stream("GET", url) as response:
if response.status_code >= 400:
return DownloadResult(
success=False,
error=f"HTTP {response.status_code}",
)
with open(file_path, "wb") as f:
async for chunk in response.aiter_bytes(chunk_size=self.chunk_size):
f.write(chunk)
downloaded += len(chunk)
# 检查是否超过最大限制
if downloaded > self.max_file_size:
os.remove(file_path)
return DownloadResult(
success=False,
error=f"文件过大,已下载 {downloaded / 1024 / 1024:.1f}MB",
)
if progress_callback:
progress_callback(downloaded, content_length or downloaded)
return DownloadResult(
success=True,
file_path=file_path,
file_size=downloaded,
content_type=content_type,
)
def cleanup(self, file_path: str) -> bool:
"""
清理下载的临时文件
Args:
file_path: 文件路径
Returns:
是否成功删除
"""
try:
if os.path.exists(file_path):
os.remove(file_path)
return True
except OSError:
pass
return False
def cleanup_old_files(self, max_age_seconds: int = 3600) -> int:
"""
清理过期的临时文件
Args:
max_age_seconds: 最大文件年龄
Returns:
删除的文件数量
"""
import time
deleted = 0
now = time.time()
for filename in os.listdir(self.temp_dir):
if not filename.startswith("video_"):
continue
file_path = os.path.join(self.temp_dir, filename)
try:
file_age = now - os.path.getmtime(file_path)
if file_age > max_age_seconds:
os.remove(file_path)
deleted += 1
except OSError:
pass
return deleted
# 全局实例
_download_service: Optional[VideoDownloadService] = None
def get_download_service() -> VideoDownloadService:
"""获取下载服务单例"""
global _download_service
if _download_service is None:
_download_service = VideoDownloadService()
return _download_service
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"""
视频审核服务
核心业务逻辑违规检测时长校验风险分类分数计算
"""
from typing import Optional
from unittest.mock import AsyncMock
class VideoReviewService:
"""视频审核服务"""
def __init__(self):
# AI 服务依赖(可注入 mock
self.asr_service: Optional[AsyncMock] = None
self.cv_service: Optional[AsyncMock] = None
self.ocr_service: Optional[AsyncMock] = None
async def detect_competitor_logos(
self,
frames: list[dict],
competitors: list[str],
min_confidence: float = 0.7,
) -> list[dict]:
"""
检测画面中的竞品 Logo
Args:
frames: 视频帧数据每帧包含 timestamp objects
competitors: 竞品列表
min_confidence: 最小置信度阈值
Returns:
违规列表
"""
violations = []
for frame in frames:
timestamp = frame.get("timestamp", 0.0)
objects = frame.get("objects", [])
for obj in objects:
label = obj.get("label", "")
confidence = obj.get("confidence", 0.0)
if label in competitors and confidence >= min_confidence:
violations.append({
"type": "competitor_logo",
"timestamp": timestamp,
"content": label,
"confidence": confidence,
"risk_level": "medium",
"suggestion": f"请移除画面中的竞品露出:{label}",
})
return violations
async def detect_forbidden_words_in_speech(
self,
transcript: list[dict],
forbidden_words: list[str],
context_aware: bool = False,
) -> list[dict]:
"""
检测语音转文字中的违禁词
Args:
transcript: ASR 转写结果每段包含 text, start, end
forbidden_words: 违禁词列表
context_aware: 是否启用语境感知
Returns:
违规列表
"""
violations = []
# 广告语境关键词
ad_context_keywords = ["产品", "购买", "推荐", "选择", "品牌", "效果"]
for segment in transcript:
text = segment.get("text", "")
start = segment.get("start", 0.0)
for word in forbidden_words:
if word in text:
# 语境感知检测
if context_aware:
is_ad_context = any(kw in text for kw in ad_context_keywords)
if not is_ad_context:
continue # 非广告语境,跳过
violations.append({
"type": "forbidden_word",
"content": word,
"timestamp": start,
"source": "speech",
"risk_level": "high",
"suggestion": f"建议删除或替换违禁词:{word}",
})
return violations
async def detect_forbidden_words_in_subtitle(
self,
subtitles: list[dict],
forbidden_words: list[str],
) -> list[dict]:
"""
检测字幕中的违禁词
Args:
subtitles: OCR 提取的字幕每条包含 text, timestamp
forbidden_words: 违禁词列表
Returns:
违规列表
"""
violations = []
for subtitle in subtitles:
text = subtitle.get("text", "")
timestamp = subtitle.get("timestamp", 0.0)
for word in forbidden_words:
if word in text:
violations.append({
"type": "forbidden_word",
"content": word,
"timestamp": timestamp,
"source": "subtitle",
"risk_level": "high",
"suggestion": f"建议删除字幕中的违禁词:{word}",
})
return violations
async def check_product_display_duration(
self,
appearances: list[dict],
min_seconds: int,
) -> list[dict]:
"""
校验产品同框时长
Args:
appearances: 产品出现时间段列表每段包含 start, end
min_seconds: 最小要求秒数
Returns:
违规列表如果时长不足
"""
total_duration = 0.0
for appearance in appearances:
start = appearance.get("start", 0.0)
end = appearance.get("end", 0.0)
total_duration += (end - start)
if total_duration < min_seconds:
return [{
"type": "duration_short",
"content": f"产品同框时长 {total_duration:.0f} 秒,不足要求的 {min_seconds}",
"timestamp": 0.0,
"risk_level": "medium",
"suggestion": f"建议增加产品同框时长至 {min_seconds} 秒以上",
}]
return []
async def check_brand_mention_frequency(
self,
transcript: list[dict],
brand_name: str,
min_mentions: int,
) -> list[dict]:
"""
校验品牌提及频次
Args:
transcript: ASR 转写结果
brand_name: 品牌名称
min_mentions: 最小提及次数
Returns:
违规列表如果提及不足
"""
mention_count = 0
for segment in transcript:
text = segment.get("text", "")
mention_count += text.count(brand_name)
if mention_count < min_mentions:
return [{
"type": "mention_missing",
"content": f"品牌 '{brand_name}' 提及 {mention_count} 次,不足要求的 {min_mentions}",
"timestamp": 0.0,
"risk_level": "low",
"suggestion": f"建议增加品牌提及至 {min_mentions} 次以上",
}]
return []
def classify_risk_level(self, violation: dict) -> str:
"""
根据违规项分类风险等级
Args:
violation: 违规项
Returns:
风险等级: high/medium/low
"""
violation_type = violation.get("type", "")
category = violation.get("category", "")
# 法律违规 -> 高风险
if category == "absolute_term" or violation_type == "forbidden_word":
return "high"
# 平台规则违规 -> 中风险
if category == "platform_rule" or violation_type in ["duration_short", "competitor_logo"]:
return "medium"
# 品牌规范违规 -> 低风险
if category == "brand_guideline" or violation_type == "mention_missing":
return "low"
return "medium" # 默认中风险
def calculate_score(self, violations: list[dict]) -> int:
"""
计算合规分数
规则
- 基础分 100
- 高风险违规扣 25
- 中风险违规扣 15
- 低风险违规扣 5
- 最低 0
Args:
violations: 违规列表
Returns:
合规分数 (0-100)
"""
score = 100
for violation in violations:
risk_level = violation.get("risk_level", "medium")
if risk_level == "high":
score -= 25
elif risk_level == "medium":
score -= 15
else:
score -= 5
return max(0, score)
async def review_video(
self,
video_url: str,
platform: str,
brand_id: str,
competitors: list[str] = None,
forbidden_words: list[str] = None,
) -> dict:
"""
完整视频审核流程
Args:
video_url: 视频 URL
platform: 投放平台
brand_id: 品牌 ID
competitors: 竞品列表
forbidden_words: 违禁词列表
Returns:
审核结果
"""
competitors = competitors or []
forbidden_words = forbidden_words or []
all_violations = []
# 1. ASR 语音转文字 + 违禁词检测
if self.asr_service:
transcript = await self.asr_service.transcribe(video_url)
speech_violations = await self.detect_forbidden_words_in_speech(
transcript, forbidden_words
)
all_violations.extend(speech_violations)
# 2. CV 物体检测 + 竞品 Logo 检测
if self.cv_service:
frames = await self.cv_service.detect_objects(video_url)
logo_violations = await self.detect_competitor_logos(frames, competitors)
all_violations.extend(logo_violations)
# 3. OCR 字幕提取 + 违禁词检测
if self.ocr_service:
subtitles = await self.ocr_service.extract_subtitles(video_url)
subtitle_violations = await self.detect_forbidden_words_in_subtitle(
subtitles, forbidden_words
)
all_violations.extend(subtitle_violations)
# 4. 计算分数
score = self.calculate_score(all_violations)
# 5. 生成摘要
if not all_violations:
summary = "视频内容合规,未发现违规项"
else:
summary = f"发现 {len(all_violations)} 处违规"
return {
"score": score,
"summary": summary,
"violations": all_violations,
}
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"""
视觉分析服务
集成 GPT-4V 实现竞品 Logo 检测画面分析OCR 字幕提取
"""
import base64
import json
from dataclasses import dataclass, field
from typing import Optional
from app.services.ai_client import OpenAICompatibleClient
from app.services.keyframe import KeyFrame
@dataclass
class DetectedObject:
"""检测到的对象"""
label: str
confidence: float
timestamp: float
bounding_box: Optional[dict] = None # {x, y, width, height}
description: Optional[str] = None
@dataclass
class SubtitleSegment:
"""字幕片段"""
text: str
timestamp: float
confidence: float = 1.0
@dataclass
class VisionAnalysisResult:
"""视觉分析结果"""
success: bool
detected_logos: list[DetectedObject] = field(default_factory=list)
detected_texts: list[SubtitleSegment] = field(default_factory=list)
scene_description: str = ""
error: Optional[str] = None
class VisionAnalysisService:
"""视觉分析服务"""
def __init__(
self,
api_key: str,
base_url: str = "https://api.openai.com/v1",
model: str = "gpt-4o",
max_tokens: int = 2000,
):
"""
初始化视觉分析服务
Args:
api_key: API Key
base_url: API 基础 URL
model: 视觉模型名称
max_tokens: 最大输出 token
"""
self.client = OpenAICompatibleClient(
base_url=base_url,
api_key=api_key,
)
self.model = model
self.max_tokens = max_tokens
async def detect_logos(
self,
frames: list[KeyFrame],
competitor_names: list[str],
batch_size: int = 5,
) -> VisionAnalysisResult:
"""
检测画面中的竞品 Logo
Args:
frames: 关键帧列表
competitor_names: 竞品名称列表
batch_size: 每批处理的帧数
Returns:
VisionAnalysisResult: 分析结果
"""
if not frames:
return VisionAnalysisResult(success=True)
all_logos = []
competitors_str = "".join(competitor_names) if competitor_names else "任何品牌"
# 分批处理帧
for i in range(0, len(frames), batch_size):
batch = frames[i:i + batch_size]
try:
result = await self._analyze_frames_for_logos(
batch,
competitors_str,
)
all_logos.extend(result)
except Exception as e:
# 单批失败不影响整体
continue
return VisionAnalysisResult(
success=True,
detected_logos=all_logos,
)
async def _analyze_frames_for_logos(
self,
frames: list[KeyFrame],
competitors_str: str,
) -> list[DetectedObject]:
"""分析一批帧中的 Logo"""
# 构建图片内容
image_contents = []
timestamps = []
for frame in frames:
base64_image = frame.to_base64()
image_contents.append({
"type": "image_url",
"image_url": {
"url": f"data:image/jpeg;base64,{base64_image}",
"detail": "low",
},
})
timestamps.append(frame.timestamp)
prompt = f"""分析这些视频帧,检测是否出现以下竞品品牌的 Logo 或产品:{competitors_str}
请以 JSON 格式返回检测结果格式如下
{{
"detections": [
{{
"frame_index": 0,
"brand": "品牌名称",
"confidence": 0.9,
"description": "Logo 出现在画面左上角"
}}
]
}}
如果没有检测到任何竞品返回空数组{{"detections": []}}
只返回 JSON不要其他文字"""
messages = [{
"role": "user",
"content": [{"type": "text", "text": prompt}] + image_contents,
}]
response = await self.client.chat_completion(
messages=messages,
model=self.model,
temperature=0.1,
max_tokens=self.max_tokens,
)
# 解析响应
try:
content = response.content.strip()
# 尝试提取 JSON
if "```json" in content:
content = content.split("```json")[1].split("```")[0]
elif "```" in content:
content = content.split("```")[1].split("```")[0]
data = json.loads(content)
detections = data.get("detections", [])
result = []
for det in detections:
frame_idx = det.get("frame_index", 0)
if 0 <= frame_idx < len(timestamps):
result.append(DetectedObject(
label=det.get("brand", ""),
confidence=det.get("confidence", 0.8),
timestamp=timestamps[frame_idx],
description=det.get("description", ""),
))
return result
except (json.JSONDecodeError, KeyError):
return []
async def extract_text_from_frames(
self,
frames: list[KeyFrame],
batch_size: int = 5,
) -> VisionAnalysisResult:
"""
从帧中提取文字OCR
Args:
frames: 关键帧列表
batch_size: 每批处理的帧数
Returns:
VisionAnalysisResult: 分析结果
"""
if not frames:
return VisionAnalysisResult(success=True)
all_texts = []
for i in range(0, len(frames), batch_size):
batch = frames[i:i + batch_size]
try:
result = await self._extract_text_from_batch(batch)
all_texts.extend(result)
except Exception:
continue
return VisionAnalysisResult(
success=True,
detected_texts=all_texts,
)
async def _extract_text_from_batch(
self,
frames: list[KeyFrame],
) -> list[SubtitleSegment]:
"""从一批帧中提取文字"""
image_contents = []
timestamps = []
for frame in frames:
base64_image = frame.to_base64()
image_contents.append({
"type": "image_url",
"image_url": {
"url": f"data:image/jpeg;base64,{base64_image}",
"detail": "high",
},
})
timestamps.append(frame.timestamp)
prompt = """提取这些视频帧中的所有可见文字,特别是字幕和标题。
请以 JSON 格式返回格式如下
{
"texts": [
{
"frame_index": 0,
"text": "提取到的文字内容",
"type": "subtitle"
}
]
}
type 可以是: subtitle字幕, title标题, caption说明文字, other其他
如果没有文字返回空数组{"texts": []}
只返回 JSON不要其他文字"""
messages = [{
"role": "user",
"content": [{"type": "text", "text": prompt}] + image_contents,
}]
response = await self.client.chat_completion(
messages=messages,
model=self.model,
temperature=0.1,
max_tokens=self.max_tokens,
)
try:
content = response.content.strip()
if "```json" in content:
content = content.split("```json")[1].split("```")[0]
elif "```" in content:
content = content.split("```")[1].split("```")[0]
data = json.loads(content)
texts = data.get("texts", [])
result = []
for txt in texts:
frame_idx = txt.get("frame_index", 0)
if 0 <= frame_idx < len(timestamps):
text_content = txt.get("text", "").strip()
if text_content:
result.append(SubtitleSegment(
text=text_content,
timestamp=timestamps[frame_idx],
))
return result
except (json.JSONDecodeError, KeyError):
return []
async def analyze_scene(
self,
frame: KeyFrame,
context: str = "",
) -> str:
"""
分析单帧场景
Args:
frame: 关键帧
context: 额外上下文
Returns:
场景描述
"""
base64_image = frame.to_base64()
prompt = f"请简要描述这个视频画面的内容,特别关注:产品、人物、场景、文字。{context}"
messages = [{
"role": "user",
"content": [
{"type": "text", "text": prompt},
{
"type": "image_url",
"image_url": {
"url": f"data:image/jpeg;base64,{base64_image}",
"detail": "low",
},
},
],
}]
try:
response = await self.client.chat_completion(
messages=messages,
model=self.model,
temperature=0.3,
max_tokens=500,
)
return response.content.strip()
except Exception as e:
return f"分析失败: {str(e)}"
async def close(self):
"""关闭客户端"""
await self.client.close()
class CompetitorLogoDetector:
"""竞品 Logo 检测器(封装简化接口)"""
def __init__(
self,
api_key: str,
base_url: str = "https://api.openai.com/v1",
model: str = "gpt-4o",
):
self.service = VisionAnalysisService(api_key, base_url, model)
async def detect(
self,
frames: list[KeyFrame],
competitors: list[str],
) -> list[dict]:
"""
检测竞品 Logo
Args:
frames: 关键帧
competitors: 竞品列表
Returns:
违规列表兼容 VideoReviewService 格式
"""
result = await self.service.detect_logos(frames, competitors)
violations = []
for logo in result.detected_logos:
if logo.label in competitors or any(c in logo.label for c in competitors):
violations.append({
"type": "competitor_logo",
"timestamp": logo.timestamp,
"timestamp_end": logo.timestamp + 1.0,
"content": logo.label,
"confidence": logo.confidence,
"risk_level": "medium",
"source": "visual",
"suggestion": f"请移除画面中的竞品露出:{logo.label}",
})
return violations
async def close(self):
await self.service.close()
class VideoOCRService:
"""视频 OCR 服务"""
def __init__(
self,
api_key: str,
base_url: str = "https://api.openai.com/v1",
model: str = "gpt-4o",
):
self.service = VisionAnalysisService(api_key, base_url, model)
async def extract_subtitles(
self,
frames: list[KeyFrame],
) -> list[dict]:
"""
提取字幕
Args:
frames: 关键帧
Returns:
字幕列表兼容 VideoReviewService 格式
"""
result = await self.service.extract_text_from_frames(frames)
subtitles = []
for seg in result.detected_texts:
subtitles.append({
"text": seg.text,
"timestamp": seg.timestamp,
})
return subtitles
async def close(self):
await self.service.close()
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"""后台任务模块"""
from app.celery_app import celery_app
__all__ = ["celery_app"]
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"""
视频审核后台任务
完整的视频审核流程下载 提取帧 ASR 视觉分析 生成报告
"""
import asyncio
import os
from datetime import datetime, timezone
from typing import Optional
from celery import shared_task
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
from sqlalchemy.orm import sessionmaker
from app.config import settings
from app.models.review import ReviewTask, TaskStatus as DBTaskStatus
from app.models.rule import ForbiddenWord, Competitor
from app.models.ai_config import AIConfig
from app.services.video_download import VideoDownloadService, DownloadResult
from app.services.keyframe import KeyFrameExtractor, ExtractionResult
from app.services.asr import VideoASRService, TranscriptionResult
from app.services.vision import CompetitorLogoDetector, VideoOCRService
from app.services.video_review import VideoReviewService
from app.utils.crypto import decrypt_api_key
# 异步数据库引擎
_async_engine = None
_async_session_factory = None
def get_async_engine():
"""获取异步数据库引擎"""
global _async_engine
if _async_engine is None:
_async_engine = create_async_engine(
settings.DATABASE_URL,
echo=False,
pool_size=5,
max_overflow=10,
)
return _async_engine
def get_async_session() -> sessionmaker:
"""获取异步会话工厂"""
global _async_session_factory
if _async_session_factory is None:
_async_session_factory = sessionmaker(
get_async_engine(),
class_=AsyncSession,
expire_on_commit=False,
)
return _async_session_factory
async def update_review_progress(
db: AsyncSession,
review_id: str,
progress: int,
current_step: str,
status: Optional[DBTaskStatus] = None,
):
"""更新审核进度"""
result = await db.execute(
select(ReviewTask).where(ReviewTask.id == review_id)
)
task = result.scalar_one_or_none()
if task:
task.progress = progress
task.current_step = current_step
if status:
task.status = status
await db.commit()
async def complete_review(
db: AsyncSession,
review_id: str,
score: int,
summary: str,
violations: list[dict],
status: DBTaskStatus = DBTaskStatus.COMPLETED,
):
"""完成审核"""
result = await db.execute(
select(ReviewTask).where(ReviewTask.id == review_id)
)
task = result.scalar_one_or_none()
if task:
task.status = status
task.progress = 100
task.current_step = "完成"
task.score = score
task.summary = summary
task.violations = violations
task.completed_at = datetime.now(timezone.utc)
await db.commit()
async def fail_review(
db: AsyncSession,
review_id: str,
error: str,
):
"""审核失败"""
result = await db.execute(
select(ReviewTask).where(ReviewTask.id == review_id)
)
task = result.scalar_one_or_none()
if task:
task.status = DBTaskStatus.FAILED
task.current_step = "失败"
task.summary = f"审核失败: {error}"
await db.commit()
async def get_ai_config(db: AsyncSession, tenant_id: str) -> Optional[dict]:
"""获取租户 AI 配置"""
result = await db.execute(
select(AIConfig).where(
AIConfig.tenant_id == tenant_id,
AIConfig.is_configured == True,
)
)
config = result.scalar_one_or_none()
if not config:
return None
return {
"api_key": decrypt_api_key(config.api_key_encrypted),
"base_url": config.base_url,
"models": config.models,
}
async def get_forbidden_words(db: AsyncSession, tenant_id: str) -> list[str]:
"""获取违禁词列表"""
result = await db.execute(
select(ForbiddenWord.word).where(ForbiddenWord.tenant_id == tenant_id)
)
return [row[0] for row in result.fetchall()]
async def get_competitors(db: AsyncSession, tenant_id: str, brand_id: str) -> list[str]:
"""获取竞品列表"""
result = await db.execute(
select(Competitor.name).where(
Competitor.tenant_id == tenant_id,
Competitor.brand_id == brand_id,
)
)
return [row[0] for row in result.fetchall()]
async def process_video_review(
review_id: str,
tenant_id: str,
video_url: str,
brand_id: str,
platform: str,
):
"""
处理视频审核异步核心逻辑
流程
1. 下载视频
2. 提取关键帧
3. ASR 语音转写
4. 视觉分析竞品 Logo 检测
5. OCR 字幕提取
6. 违规检测
7. 生成报告
"""
session_factory = get_async_session()
download_service = VideoDownloadService()
keyframe_extractor = KeyFrameExtractor()
review_service = VideoReviewService()
video_path = None
frames_dir = None
logo_detector = None
ocr_service = None
asr_service = None
async with session_factory() as db:
try:
# 更新状态:处理中
await update_review_progress(
db, review_id, 5, "开始处理",
status=DBTaskStatus.PROCESSING,
)
# 获取 AI 配置
ai_config = await get_ai_config(db, tenant_id)
if not ai_config:
await fail_review(db, review_id, "AI 服务未配置")
return
# 获取规则
forbidden_words = await get_forbidden_words(db, tenant_id)
competitors = await get_competitors(db, tenant_id, brand_id)
# 初始化 AI 服务
api_key = ai_config["api_key"]
base_url = ai_config["base_url"]
models = ai_config["models"]
asr_service = VideoASRService(
api_key=api_key,
base_url=base_url,
model=models.get("audio", "whisper-1"),
)
logo_detector = CompetitorLogoDetector(
api_key=api_key,
base_url=base_url,
model=models.get("vision", "gpt-4o"),
)
ocr_service = VideoOCRService(
api_key=api_key,
base_url=base_url,
model=models.get("vision", "gpt-4o"),
)
# 1. 下载视频
await update_review_progress(db, review_id, 10, "下载视频")
download_result: DownloadResult = await download_service.download(video_url)
if not download_result.success:
await fail_review(db, review_id, f"视频下载失败: {download_result.error}")
return
video_path = download_result.file_path
# 2. 提取关键帧
await update_review_progress(db, review_id, 25, "提取关键帧")
extraction_result: ExtractionResult = await keyframe_extractor.extract_at_intervals(
video_path,
interval_seconds=2.0,
max_frames=30,
)
if not extraction_result.success:
await fail_review(db, review_id, f"关键帧提取失败: {extraction_result.error}")
return
frames_dir = extraction_result.output_dir
frames = extraction_result.frames
all_violations = []
# 3. ASR 语音转写
await update_review_progress(db, review_id, 40, "语音转写")
transcript_result: TranscriptionResult = await asr_service.transcribe_video(video_path)
transcript = []
if transcript_result.success:
transcript = [
{"text": seg.text, "start": seg.start, "end": seg.end}
for seg in transcript_result.segments
]
# 检测口播违禁词
speech_violations = await review_service.detect_forbidden_words_in_speech(
transcript,
forbidden_words,
context_aware=True,
)
all_violations.extend(speech_violations)
# 4. 视觉分析 - 竞品 Logo 检测
await update_review_progress(db, review_id, 60, "检测竞品 Logo")
if competitors and frames:
logo_violations = await logo_detector.detect(frames, competitors)
all_violations.extend(logo_violations)
# 5. OCR 字幕提取
await update_review_progress(db, review_id, 75, "提取字幕")
if frames:
subtitles = await ocr_service.extract_subtitles(frames)
# 检测字幕违禁词
subtitle_violations = await review_service.detect_forbidden_words_in_subtitle(
subtitles,
forbidden_words,
)
all_violations.extend(subtitle_violations)
# 6. 计算分数和生成报告
await update_review_progress(db, review_id, 90, "生成报告")
score = review_service.calculate_score(all_violations)
if not all_violations:
summary = "视频内容合规,未发现违规项"
else:
high_count = sum(1 for v in all_violations if v.get("risk_level") == "high")
medium_count = sum(1 for v in all_violations if v.get("risk_level") == "medium")
summary = f"发现 {len(all_violations)} 处违规"
if high_count > 0:
summary += f"{high_count} 处高风险)"
# 7. 完成审核
await complete_review(
db,
review_id,
score=score,
summary=summary,
violations=all_violations,
)
except Exception as e:
await fail_review(db, review_id, str(e))
finally:
# 清理资源
if video_path:
download_service.cleanup(video_path)
if frames_dir:
keyframe_extractor.cleanup(frames_dir)
if logo_detector:
await logo_detector.close()
if ocr_service:
await ocr_service.close()
@shared_task(
bind=True,
name="app.tasks.review.process_video_review_task",
max_retries=3,
default_retry_delay=60,
)
def process_video_review_task(
self,
review_id: str,
tenant_id: str,
video_url: str,
brand_id: str,
platform: str,
):
"""
视频审核 Celery 任务
Args:
review_id: 审核任务 ID
tenant_id: 租户 ID
video_url: 视频 URL
brand_id: 品牌 ID
platform: 平台
"""
try:
# 运行异步任务
asyncio.run(process_video_review(
review_id=review_id,
tenant_id=tenant_id,
video_url=video_url,
brand_id=brand_id,
platform=platform,
))
except Exception as e:
# 重试
raise self.retry(exc=e)
@shared_task(name="app.tasks.review.cleanup_old_files_task")
def cleanup_old_files_task():
"""清理过期的临时文件"""
from app.services.video_download import get_download_service
service = get_download_service()
deleted = service.cleanup_old_files(max_age_seconds=3600)
return {"deleted_files": deleted}
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"""
工具模块
"""
from app.utils.crypto import encrypt_api_key, decrypt_api_key
__all__ = [
"encrypt_api_key",
"decrypt_api_key",
]
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"""
加密工具
API Key 加解密
"""
import base64
import os
from cryptography.fernet import Fernet
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
from app.config import settings
def _get_fernet() -> Fernet:
"""
获取 Fernet 加密器
使用应用的 SECRET_KEY 派生加密密钥
"""
# 使用 PBKDF2 从 SECRET_KEY 派生 32 字节密钥
kdf = PBKDF2HMAC(
algorithm=hashes.SHA256(),
length=32,
salt=b"miaosi-api-key-salt", # 固定 salt,生产环境应配置为环境变量
iterations=100000,
)
key = base64.urlsafe_b64encode(
kdf.derive(settings.SECRET_KEY.encode())
)
return Fernet(key)
def encrypt_api_key(api_key: str) -> str:
"""
加密 API Key
Args:
api_key: 明文 API Key
Returns:
加密后的 Base64 字符串
"""
if not api_key:
return ""
fernet = _get_fernet()
encrypted = fernet.encrypt(api_key.encode())
return encrypted.decode()
def decrypt_api_key(encrypted: str) -> str:
"""
解密 API Key
Args:
encrypted: 加密的 API Key
Returns:
明文 API Key
"""
if not encrypted:
return ""
fernet = _get_fernet()
decrypted = fernet.decrypt(encrypted.encode())
return decrypted.decode()
def mask_api_key(api_key: str) -> str:
"""
脱敏 API Key
Args:
api_key: API Key明文或加密均可
Returns:
脱敏后的字符串 "sk-1234****5678"
"""
if not api_key:
return ""
if len(api_key) <= 8:
return "****"
return f"{api_key[:4]}****{api_key[-4:]}"