添加bing搜索agent (#378)

* 1: 基于langchain的bing search agent添加bing搜索支持(百度不靠谱,Google不可用)
2: 调整输入框交互模式,对话/知识库/搜索,三选一

* fixed bug of message have no text

---------

Co-authored-by: root <jv.liu@i1368.com>

agent/__init__.py

-from .chatglm_with_shared_memory_openai_llm import *
\ No newline at end of file
+#from .chatglm_with_shared_memory_openai_llm import *
+from agent.bing_search import search as bing_search

agent/bing_search.py

+#coding=utf8
+
+import os
+from langchain.utilities import BingSearchAPIWrapper
+
+
+env_bing_key = os.environ.get("BING_SUBSCRIPTION_KEY")
+env_bing_url = os.environ.get("BING_SEARCH_URL")
+
+
+def search(text, result_len=3):
+    if not (env_bing_key and env_bing_url):
+        return [{"snippet":"please set BING_SUBSCRIPTION_KEY and BING_SEARCH_URL in os ENV",
+            "title": "env inof not fould", "link":"https://python.langchain.com/en/latest/modules/agents/tools/examples/bing_search.html"}]
+    search = BingSearchAPIWrapper()
+    return search.results(text, result_len)
+
+
+if __name__ == "__main__":
+    r = search('python')

api.py

@@ -13,10 +13,12 @@ from fastapi.middleware.cors import CORSMiddleware
 from pydantic import BaseModel
 from typing_extensions import Annotated
 from starlette.responses import RedirectResponse
+
 from chains.local_doc_qa import LocalDocQA
 from configs.model_config import (VS_ROOT_PATH, UPLOAD_ROOT_PATH, EMBEDDING_DEVICE,
                                   EMBEDDING_MODEL, LLM_MODEL, NLTK_DATA_PATH,
                                   VECTOR_SEARCH_TOP_K, LLM_HISTORY_LEN, OPEN_CROSS_DOMAIN)
+from agent import bing_search as agent_bing_search
 
 nltk.data.path = [NLTK_DATA_PATH] + nltk.data.path
 
@@ -314,6 +316,23 @@ async def document():
     return RedirectResponse(url="/docs")
 
 
+async def bing_search(
+        search_text: str = Query(default=None, description="text you want to search", example="langchain")
+):
+    results = agent_bing_search(search_text)
+    result_str = ''
+    for result in results:
+        for k, v in result.items():
+            result_str += "%s: %s\n" % (k, v)
+        result_str += '\n'
+
+    return ChatMessage(
+        question=search_text,
+        response=result_str,
+        history=[],
+        source_documents=[],
+    )
+
 def api_start(host, port):
     global app
     global local_doc_qa
@@ -342,6 +361,8 @@ def api_start(host, port):
     app.get("/local_doc_qa/list_files", response_model=ListDocsResponse)(list_docs)
     app.delete("/local_doc_qa/delete_file", response_model=BaseResponse)(delete_docs)
 
+    app.get("/bing_search", response_model=ChatMessage)(bing_search)
+
     local_doc_qa = LocalDocQA()
     local_doc_qa.init_cfg(
         llm_model=LLM_MODEL,

views/src/api/chat.ts

@@ -24,7 +24,14 @@ export const getfilelist = (knowledge_base_id: any) => {
 
   })
 }
+export const bing_search = (search_text: any) => {
+  return api({
+    url: '/bing_search',
+    method: 'get',
+    params: { search_text },
 
+  })
+}
 export const deletefile = (params: any) => {
   return api({
     url: '/local_doc_qa/delete_file',

views/src/views/chat/index.vue

@@ -3,7 +3,7 @@ import type { Ref } from 'vue'
 import { computed, onMounted, onUnmounted, ref } from 'vue'
 import { useRoute } from 'vue-router'
 import { storeToRefs } from 'pinia'
-import { NAutoComplete, NButton, NInput, NSwitch, useDialog, useMessage } from 'naive-ui'
+import { NAutoComplete, NButton, NInput, NRadioButton, NRadioGroup, useDialog, useMessage } from 'naive-ui'
 import html2canvas from 'html2canvas'
 import { Message } from './components'
 import { useScroll } from './hooks/useScroll'
@@ -14,7 +14,7 @@ import { HoverButton, SvgIcon } from '@/components/common'
 import { useBasicLayout } from '@/hooks/useBasicLayout'
 import { useChatStore, usePromptStore } from '@/store'
 import { t } from '@/locales'
-import { chat, chatfile } from '@/api/chat'
+import { bing_search, chat, chatfile } from '@/api/chat'
 import { idStore } from '@/store/modules/knowledgebaseid/id'
 let controller = new AbortController()
 
@@ -39,6 +39,7 @@ const conversationList = computed(() => dataSources.value.filter(item => (!item.
 const prompt = ref<string>('')
 const loading = ref<boolean>(false)
 const inputRef = ref<Ref | null>(null)
+const search = ref<boolean>('对话')
 
 // 添加PromptStore
 const promptStore = usePromptStore()
@@ -55,15 +56,70 @@ dataSources.value.forEach((item, index) => {
     updateChatSome(+uuid, index, { loading: false })
 })
 
-function handleSubmit() {
-  onConversation()
+async function handleSubmit() {
+  if (search.value == 'Bing搜索') {
+    loading.value = true
+    const options: Chat.ConversationRequest = {}
+    const lastText = ''
+    const message = prompt.value
+
+    addChat(
+      +uuid,
+      {
+        dateTime: new Date().toLocaleString(),
+        text: message,
+        inversion: true,
+        error: false,
+        conversationOptions: null,
+        requestOptions: { prompt: message, options: null },
+      },
+    )
+    scrollToBottom()
+    const res = await bing_search(prompt.value)
+
+    const result = active.value ? `${res.data.response}\n\n数据来源：\n\n>${res.data.source_documents.join('>')}` : res.data.response
+    addChat(
+      +uuid,
+      {
+        dateTime: new Date().toLocaleString(),
+        text: '',
+        loading: true,
+        inversion: false,
+        error: false,
+        conversationOptions: null,
+        requestOptions: { prompt: message, options: { ...options } },
+      },
+    )
+    scrollToBottom()
+    updateChat(
+      +uuid,
+      dataSources.value.length - 1,
+      {
+        dateTime: new Date().toLocaleString(),
+        text: lastText + (result ?? ''),
+        inversion: false,
+        error: false,
+        loading: false,
+        conversationOptions: null,
+        requestOptions: { prompt: message, options: { ...options } },
+      },
+    )
+    prompt.value = ''
+    scrollToBottomIfAtBottom()
+    loading.value = false
+  }
+  else {
+    onConversation()
+  }
 }
 
 async function onConversation() {
   const message = prompt.value
   if (usingContext.value) {
-    for (let i = 0; i < dataSources.value.length; i = i + 2)
-      history.value.push([dataSources.value[i].text, dataSources.value[i + 1].text.split('\n\n数据来源：\n\n>')[0]])
+    for (let i = 0; i < dataSources.value.length; i = i + 2) {
+      if (!i)
+        history.value.push([dataSources.value[i].text, dataSources.value[i + 1].text.split('\n\n数据来源：\n\n>')[0]])
+    }
   }
   else { history.value.length = 0 }
 
@@ -480,6 +536,13 @@ onUnmounted(() => {
   if (loading.value)
     controller.abort()
 })
+function searchfun() {
+  if (search.value == '知识库')
+    active.value = true
+
+  else
+    active.value = false
+}
 </script>
 
 <template>
@@ -532,14 +595,11 @@ onUnmounted(() => {
     <footer :class="footerClass">
       <div class="w-full max-w-screen-xl m-auto">
         <div class="flex items-center justify-between space-x-2">
-          <NSwitch v-model:value="active">
-            <template #checked>
-              知识库
-            </template>
-            <template #unchecked>
-              知识库&nbsp;&nbsp;
-            </template>
-          </NSwitch>
+          <NRadioGroup v-model:value="search" @change="searchfun">
+            <NRadioButton value="对话" label="对话" />
+            <NRadioButton value="知识库" label="知识库" />
+            <NRadioButton value="Bing搜索" label="Bing搜索" />
+          </NRadioGroup>
           <HoverButton @click="handleClear">
             <span class="text-xl text-[#4f555e] dark:text-white">
               <SvgIcon icon="ri:delete-bin-line" />