MaxKB/apps/chat/views/chat.py

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# coding=utf-8
"""
@project: MaxKB
@Author虎虎
@file chat.py
@date2025/6/6 11:18
@desc:
"""
import requests
from django.http import HttpResponse, StreamingHttpResponse
from django.utils.translation import gettext_lazy as _
from drf_spectacular.utils import extend_schema
from rest_framework.parsers import MultiPartParser
from rest_framework.request import Request
from rest_framework.views import APIView
from application.api.application_api import SpeechToTextAPI, TextToSpeechAPI
from chat.api.chat_api import ChatAPI
from chat.api.chat_authentication_api import ChatAuthenticationAPI, ChatAuthenticationProfileAPI, ChatOpenAPI, OpenAIAPI
from chat.serializers.chat import OpenChatSerializers, ChatSerializers, SpeechToTextSerializers, \
TextToSpeechSerializers, OpenAIChatSerializer
from chat.serializers.chat_authentication import AnonymousAuthenticationSerializer, ApplicationProfileSerializer, \
AuthProfileSerializer
from common.auth import TokenAuth
from common.constants.permission_constants import ChatAuth
from common.exception.app_exception import AppAuthenticationFailed
from common.result import result
from knowledge.models import FileSourceType
from oss.serializers.file import FileSerializer
from users.api import CaptchaAPI
from users.serializers.login import CaptchaSerializer
def stream_image(response):
"""生成器函数,用于流式传输图片数据"""
for chunk in response.iter_content(chunk_size=4096):
if chunk: # 过滤掉保持连接的空块
yield chunk
class ResourceProxy(APIView):
def get(self, request: Request):
image_url = request.query_params.get("url")
if not image_url:
return result.error("Missing 'url' parameter")
try:
# 发送GET请求流式获取图片内容
response = requests.get(
image_url,
stream=True, # 启用流式响应
allow_redirects=True,
timeout=10
)
content_type = response.headers.get('Content-Type', '').split(';')[0]
# 创建Django流式响应
django_response = StreamingHttpResponse(
stream_image(response), # 使用生成器
content_type=content_type
)
return django_response
except Exception as e:
return result.error(f"Image request failed: {str(e)}")
class OpenAIView(APIView):
authentication_classes = [TokenAuth]
@extend_schema(
methods=['POST'],
description=_('OpenAI Interface Dialogue'),
summary=_('OpenAI Interface Dialogue'),
operation_id=_('OpenAI Interface Dialogue'), # type: ignore
request=OpenAIAPI.get_request(),
responses=None,
tags=[_('Chat')] # type: ignore
)
def post(self, request: Request, application_id: str):
return OpenAIChatSerializer(data={'application_id': application_id, 'chat_user_id': request.auth.chat_user_id,
'chat_user_type': request.auth.chat_user_type}).chat(request.data)
class AnonymousAuthentication(APIView):
def options(self, request, *args, **kwargs):
return HttpResponse(
headers={"Access-Control-Allow-Origin": "*", "Access-Control-Allow-Credentials": "true",
"Access-Control-Allow-Methods": "POST",
"Access-Control-Allow-Headers": "Origin,Content-Type,Cookie,Accept,Token"}, )
@extend_schema(
methods=['POST'],
description=_('Application Anonymous Certification'),
summary=_('Application Anonymous Certification'),
operation_id=_('Application Anonymous Certification'), # type: ignore
request=ChatAuthenticationAPI.get_request(),
responses=None,
tags=[_('Chat')] # type: ignore
)
def post(self, request: Request):
return result.success(
AnonymousAuthenticationSerializer(data={'access_token': request.data.get("access_token")}).auth(
request),
headers={"Access-Control-Allow-Origin": "*", "Access-Control-Allow-Credentials": "true",
"Access-Control-Allow-Methods": "POST",
"Access-Control-Allow-Headers": "Origin,Content-Type,Cookie,Accept,Token"}
)
class ApplicationProfile(APIView):
authentication_classes = [TokenAuth]
@extend_schema(
methods=['GET'],
description=_("Get application related information"),
summary=_("Get application related information"),
operation_id=_("Get application related information"), # type: ignore
request=None,
responses=None,
tags=[_('Chat')] # type: ignore
)
def get(self, request: Request):
if isinstance(request.auth, ChatAuth):
return result.success(ApplicationProfileSerializer(
data={'application_id': request.auth.application_id}).profile())
raise AppAuthenticationFailed(401, "身份异常")
class AuthProfile(APIView):
@extend_schema(
methods=['GET'],
description=_("Get application authentication information"),
summary=_("Get application authentication information"),
operation_id=_("Get application authentication information"), # type: ignore
parameters=ChatAuthenticationProfileAPI.get_parameters(),
responses=None,
tags=[_('Chat')] # type: ignore
)
def get(self, request: Request):
return result.success(
AuthProfileSerializer(data={'access_token': request.query_params.get("access_token")}).profile())
class ChatView(APIView):
authentication_classes = [TokenAuth]
@extend_schema(
methods=['POST'],
description=_("dialogue"),
summary=_("dialogue"),
operation_id=_("dialogue"), # type: ignore
request=ChatAPI.get_request(),
parameters=ChatAPI.get_parameters(),
responses=None,
tags=[_('Chat')] # type: ignore
)
def post(self, request: Request, chat_id: str):
return ChatSerializers(data={'chat_id': chat_id,
'chat_user_id': request.auth.chat_user_id,
'chat_user_type': request.auth.chat_user_type,
'application_id': request.auth.application_id,
'debug': False}
).chat(request.data)
class OpenView(APIView):
authentication_classes = [TokenAuth]
@extend_schema(
methods=['GET'],
description=_("Get the session id according to the application id"),
summary=_("Get the session id according to the application id"),
operation_id=_("Get the session id according to the application id"), # type: ignore
parameters=ChatOpenAPI.get_parameters(),
responses=None,
tags=[_('Chat')] # type: ignore
)
def get(self, request: Request):
return result.success(OpenChatSerializers(
data={'application_id': request.auth.application_id,
'chat_user_id': request.auth.chat_user_id, 'chat_user_type': request.auth.chat_user_type,
'debug': False}).open())
class CaptchaView(APIView):
@extend_schema(methods=['GET'],
summary=_("Get Chat captcha"),
description=_("Get Chat captcha"),
operation_id=_("Get Chat captcha"), # type: ignore
tags=[_("Chat")], # type: ignore
responses=CaptchaAPI.get_response())
def get(self, request: Request):
username = request.query_params.get('username', None)
accessToken = request.query_params.get('accessToken', None)
return result.success(CaptchaSerializer().chat_generate(username, 'chat', accessToken))
class SpeechToText(APIView):
authentication_classes = [TokenAuth]
@extend_schema(
methods=['POST'],
description=_("speech to text"),
summary=_("speech to text"),
operation_id=_("speech to text"), # type: ignore
request=SpeechToTextAPI.get_request(),
responses=SpeechToTextAPI.get_response(),
tags=[_('Chat')] # type: ignore
)
def post(self, request: Request):
return result.success(
SpeechToTextSerializers(
data={'application_id': request.auth.application_id})
.speech_to_text({'file': request.FILES.get('file')}))
class TextToSpeech(APIView):
authentication_classes = [TokenAuth]
@extend_schema(
methods=['POST'],
description=_("text to speech"),
summary=_("text to speech"),
operation_id=_("text to speech"), # type: ignore
request=TextToSpeechAPI.get_request(),
responses=TextToSpeechAPI.get_response(),
tags=[_('Chat')] # type: ignore
)
def post(self, request: Request):
byte_data = TextToSpeechSerializers(
data={'application_id': request.auth.application_id}).text_to_speech(request.data)
return HttpResponse(byte_data, status=200, headers={'Content-Type': 'audio/mp3',
'Content-Disposition': 'attachment; filename="abc.mp3"'})
class UploadFile(APIView):
authentication_classes = [TokenAuth]
parser_classes = [MultiPartParser]
@extend_schema(
methods=['POST'],
description=_("Upload files"),
summary=_("Upload files"),
operation_id=_("Upload files"), # type: ignore
request=TextToSpeechAPI.get_request(),
responses=TextToSpeechAPI.get_response(),
tags=[_('Application')] # type: ignore
)
def post(self, request: Request, chat_id: str):
files = request.FILES.getlist('file')
file_ids = []
meta = {}
for file in files:
file_url = FileSerializer(
data={'file': file, 'meta': meta, 'source_id': chat_id, 'source_type': FileSourceType.CHAT, }).upload()
file_ids.append({'name': file.name, 'url': file_url, 'file_id': file_url.split('/')[-1]})
return result.success(file_ids)