mirror of
https://github.com/langgenius/dify.git
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362 lines
14 KiB
Python
362 lines
14 KiB
Python
import json
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import logging
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from typing import Union, Generator
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from flask import Response, stream_with_context
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from flask_login import current_user, login_required
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from flask_restful import Resource, reqparse, marshal_with, fields
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from flask_restful.inputs import int_range
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from werkzeug.exceptions import InternalServerError, NotFound
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from controllers.console import api
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from controllers.console.app import _get_app
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from controllers.console.app.error import CompletionRequestError, ProviderNotInitializeError, \
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AppMoreLikeThisDisabledError, ProviderQuotaExceededError, ProviderModelCurrentlyNotSupportError
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from controllers.console.setup import setup_required
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from controllers.console.wraps import account_initialization_required
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from core.llm.error import LLMRateLimitError, LLMBadRequestError, LLMAuthorizationError, LLMAPIConnectionError, \
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ProviderTokenNotInitError, LLMAPIUnavailableError, QuotaExceededError, ModelCurrentlyNotSupportError
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from libs.helper import uuid_value, TimestampField
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from libs.infinite_scroll_pagination import InfiniteScrollPagination
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from extensions.ext_database import db
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from models.model import MessageAnnotation, Conversation, Message, MessageFeedback
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from services.completion_service import CompletionService
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from services.errors.app import MoreLikeThisDisabledError
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from services.errors.conversation import ConversationNotExistsError
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from services.errors.message import MessageNotExistsError
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from services.message_service import MessageService
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class ChatMessageApi(Resource):
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account_fields = {
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'id': fields.String,
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'name': fields.String,
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'email': fields.String
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}
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feedback_fields = {
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'rating': fields.String,
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'content': fields.String,
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'from_source': fields.String,
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'from_end_user_id': fields.String,
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'from_account': fields.Nested(account_fields, allow_null=True),
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}
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annotation_fields = {
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'content': fields.String,
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'account': fields.Nested(account_fields, allow_null=True),
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'created_at': TimestampField
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}
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message_detail_fields = {
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'id': fields.String,
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'conversation_id': fields.String,
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'inputs': fields.Raw,
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'query': fields.String,
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'message': fields.Raw,
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'message_tokens': fields.Integer,
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'answer': fields.String,
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'answer_tokens': fields.Integer,
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'provider_response_latency': fields.Integer,
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'from_source': fields.String,
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'from_end_user_id': fields.String,
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'from_account_id': fields.String,
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'feedbacks': fields.List(fields.Nested(feedback_fields)),
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'annotation': fields.Nested(annotation_fields, allow_null=True),
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'created_at': TimestampField
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}
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message_infinite_scroll_pagination_fields = {
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'limit': fields.Integer,
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'has_more': fields.Boolean,
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'data': fields.List(fields.Nested(message_detail_fields))
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}
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@setup_required
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@login_required
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@account_initialization_required
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@marshal_with(message_infinite_scroll_pagination_fields)
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def get(self, app_id):
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app_id = str(app_id)
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# get app info
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app = _get_app(app_id, 'chat')
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parser = reqparse.RequestParser()
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parser.add_argument('conversation_id', required=True, type=uuid_value, location='args')
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parser.add_argument('first_id', type=uuid_value, location='args')
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parser.add_argument('limit', type=int_range(1, 100), required=False, default=20, location='args')
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args = parser.parse_args()
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conversation = db.session.query(Conversation).filter(
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Conversation.id == args['conversation_id'],
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Conversation.app_id == app.id
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).first()
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if not conversation:
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raise NotFound("Conversation Not Exists.")
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if args['first_id']:
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first_message = db.session.query(Message) \
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.filter(Message.conversation_id == conversation.id, Message.id == args['first_id']).first()
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if not first_message:
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raise NotFound("First message not found")
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history_messages = db.session.query(Message).filter(
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Message.conversation_id == conversation.id,
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Message.created_at < first_message.created_at,
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Message.id != first_message.id
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) \
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.order_by(Message.created_at.desc()).limit(args['limit']).all()
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else:
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history_messages = db.session.query(Message).filter(Message.conversation_id == conversation.id) \
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.order_by(Message.created_at.desc()).limit(args['limit']).all()
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has_more = False
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if len(history_messages) == args['limit']:
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current_page_first_message = history_messages[-1]
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rest_count = db.session.query(Message).filter(
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Message.conversation_id == conversation.id,
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Message.created_at < current_page_first_message.created_at,
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Message.id != current_page_first_message.id
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).count()
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if rest_count > 0:
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has_more = True
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history_messages = list(reversed(history_messages))
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return InfiniteScrollPagination(
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data=history_messages,
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limit=args['limit'],
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has_more=has_more
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)
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class MessageFeedbackApi(Resource):
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@setup_required
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@login_required
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@account_initialization_required
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def post(self, app_id):
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app_id = str(app_id)
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# get app info
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app = _get_app(app_id)
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parser = reqparse.RequestParser()
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parser.add_argument('message_id', required=True, type=uuid_value, location='json')
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parser.add_argument('rating', type=str, choices=['like', 'dislike', None], location='json')
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args = parser.parse_args()
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message_id = str(args['message_id'])
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message = db.session.query(Message).filter(
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Message.id == message_id,
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Message.app_id == app.id
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).first()
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if not message:
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raise NotFound("Message Not Exists.")
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feedback = message.admin_feedback
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if not args['rating'] and feedback:
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db.session.delete(feedback)
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elif args['rating'] and feedback:
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feedback.rating = args['rating']
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elif not args['rating'] and not feedback:
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raise ValueError('rating cannot be None when feedback not exists')
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else:
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feedback = MessageFeedback(
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app_id=app.id,
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conversation_id=message.conversation_id,
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message_id=message.id,
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rating=args['rating'],
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from_source='admin',
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from_account_id=current_user.id
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)
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db.session.add(feedback)
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db.session.commit()
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return {'result': 'success'}
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class MessageAnnotationApi(Resource):
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@setup_required
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@login_required
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@account_initialization_required
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def post(self, app_id):
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app_id = str(app_id)
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# get app info
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app = _get_app(app_id)
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parser = reqparse.RequestParser()
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parser.add_argument('message_id', required=True, type=uuid_value, location='json')
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parser.add_argument('content', type=str, location='json')
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args = parser.parse_args()
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message_id = str(args['message_id'])
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message = db.session.query(Message).filter(
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Message.id == message_id,
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Message.app_id == app.id
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).first()
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if not message:
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raise NotFound("Message Not Exists.")
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annotation = message.annotation
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if annotation:
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annotation.content = args['content']
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else:
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annotation = MessageAnnotation(
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app_id=app.id,
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conversation_id=message.conversation_id,
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message_id=message.id,
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content=args['content'],
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account_id=current_user.id
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)
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db.session.add(annotation)
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db.session.commit()
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return {'result': 'success'}
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class MessageAnnotationCountApi(Resource):
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@setup_required
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@login_required
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@account_initialization_required
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def get(self, app_id):
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app_id = str(app_id)
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# get app info
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app = _get_app(app_id)
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count = db.session.query(MessageAnnotation).filter(
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MessageAnnotation.app_id == app.id
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).count()
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return {'count': count}
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class MessageMoreLikeThisApi(Resource):
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@setup_required
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@login_required
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@account_initialization_required
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def get(self, app_id, message_id):
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app_id = str(app_id)
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message_id = str(message_id)
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parser = reqparse.RequestParser()
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parser.add_argument('response_mode', type=str, required=True, choices=['blocking', 'streaming'], location='args')
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args = parser.parse_args()
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streaming = args['response_mode'] == 'streaming'
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# get app info
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app_model = _get_app(app_id, 'completion')
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try:
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response = CompletionService.generate_more_like_this(app_model, current_user, message_id, streaming)
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return compact_response(response)
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except MessageNotExistsError:
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raise NotFound("Message Not Exists.")
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except MoreLikeThisDisabledError:
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raise AppMoreLikeThisDisabledError()
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except ProviderTokenNotInitError:
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raise ProviderNotInitializeError()
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except QuotaExceededError:
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raise ProviderQuotaExceededError()
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except ModelCurrentlyNotSupportError:
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raise ProviderModelCurrentlyNotSupportError()
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except (LLMBadRequestError, LLMAPIConnectionError, LLMAPIUnavailableError,
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LLMRateLimitError, LLMAuthorizationError) as e:
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raise CompletionRequestError(str(e))
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except ValueError as e:
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raise e
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except Exception as e:
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logging.exception("internal server error.")
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raise InternalServerError()
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def compact_response(response: Union[dict | Generator]) -> Response:
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if isinstance(response, dict):
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return Response(response=json.dumps(response), status=200, mimetype='application/json')
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else:
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def generate() -> Generator:
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try:
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for chunk in response:
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yield chunk
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except MessageNotExistsError:
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yield "data: " + json.dumps(api.handle_error(NotFound("Message Not Exists.")).get_json()) + "\n\n"
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except MoreLikeThisDisabledError:
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yield "data: " + json.dumps(api.handle_error(AppMoreLikeThisDisabledError()).get_json()) + "\n\n"
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except ProviderTokenNotInitError:
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yield "data: " + json.dumps(api.handle_error(ProviderNotInitializeError()).get_json()) + "\n\n"
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except QuotaExceededError:
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yield "data: " + json.dumps(api.handle_error(ProviderQuotaExceededError()).get_json()) + "\n\n"
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except ModelCurrentlyNotSupportError:
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yield "data: " + json.dumps(api.handle_error(ProviderModelCurrentlyNotSupportError()).get_json()) + "\n\n"
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except (LLMBadRequestError, LLMAPIConnectionError, LLMAPIUnavailableError,
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LLMRateLimitError, LLMAuthorizationError) as e:
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yield "data: " + json.dumps(api.handle_error(CompletionRequestError(str(e))).get_json()) + "\n\n"
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except ValueError as e:
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yield "data: " + json.dumps(api.handle_error(e).get_json()) + "\n\n"
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except Exception:
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logging.exception("internal server error.")
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yield "data: " + json.dumps(api.handle_error(InternalServerError()).get_json()) + "\n\n"
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return Response(stream_with_context(generate()), status=200,
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mimetype='text/event-stream')
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class MessageSuggestedQuestionApi(Resource):
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@setup_required
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@login_required
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@account_initialization_required
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def get(self, app_id, message_id):
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app_id = str(app_id)
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message_id = str(message_id)
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# get app info
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app_model = _get_app(app_id, 'chat')
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try:
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questions = MessageService.get_suggested_questions_after_answer(
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app_model=app_model,
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user=current_user,
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message_id=message_id,
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check_enabled=False
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)
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except MessageNotExistsError:
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raise NotFound("Message not found")
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except ConversationNotExistsError:
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raise NotFound("Conversation not found")
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except ProviderTokenNotInitError:
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raise ProviderNotInitializeError()
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except QuotaExceededError:
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raise ProviderQuotaExceededError()
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except ModelCurrentlyNotSupportError:
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raise ProviderModelCurrentlyNotSupportError()
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except (LLMBadRequestError, LLMAPIConnectionError, LLMAPIUnavailableError,
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LLMRateLimitError, LLMAuthorizationError) as e:
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raise CompletionRequestError(str(e))
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except Exception:
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logging.exception("internal server error.")
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raise InternalServerError()
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return {'data': questions}
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api.add_resource(MessageMoreLikeThisApi, '/apps/<uuid:app_id>/completion-messages/<uuid:message_id>/more-like-this')
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api.add_resource(MessageSuggestedQuestionApi, '/apps/<uuid:app_id>/chat-messages/<uuid:message_id>/suggested-questions')
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api.add_resource(ChatMessageApi, '/apps/<uuid:app_id>/chat-messages', endpoint='chat_messages')
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api.add_resource(MessageFeedbackApi, '/apps/<uuid:app_id>/feedbacks')
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api.add_resource(MessageAnnotationApi, '/apps/<uuid:app_id>/annotations')
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api.add_resource(MessageAnnotationCountApi, '/apps/<uuid:app_id>/annotations/count')
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