Add file rag/svr/discord_svr.py (#1008)

### What problem does this PR solve?

File rag/svr/discord_svr.py is for discord bot.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

rag/svr/discord_svr.py

@@ -0,0 +1,80 @@
+#
+#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+import discord
+import requests
+import base64
+import asyncio
+
+URL = '{YOUR_IP_ADDRESS:PORT}/v1/api/completion_aibotk' # Default: https://demo.ragflow.io/v1/api/completion_aibotk
+
+JSON_DATA = {
+    "conversation_id": "xxxxxxxxxxxxxxxxxxxxxxxxxxx", # Get conversation id from /api/new_conversation
+    "Authorization": "ragflow-xxxxxxxxxxxxxxxxxxxxxxxxxxxxx", # RAGFlow Assistant Chat Bot API Key
+    "word": "" # User question, don't need to initialize
+}
+
+DISCORD_BOT_KEY = "xxxxxxxxxxxxxxxxxxxxxxxxxx" #Get DISCORD_BOT_KEY from Discord Application
+
+
+intents = discord.Intents.default()
+intents.message_content = True
+client = discord.Client(intents=intents)
+
+
+@client.event
+async def on_ready():
+    print(f'We have logged in as {client.user}')
+
+
+@client.event
+async def on_message(message):
+    if message.author == client.user:
+        return
+
+    if client.user.mentioned_in(message):
+
+        if len(message.content.split('> ')) == 1:
+            await message.channel.send("Hi~ How can I help you? ")
+        else:
+            JSON_DATA['word']=message.content.split('> ')[1]
+            response = requests.post(URL, json=JSON_DATA)
+            response_data = response.json().get('data', [])
+            image_bool = False
+
+            for i in response_data:
+                if i['type'] == 1:
+                    res = i['content']
+                if i['type'] == 3:
+                    image_bool = True
+                    image_data = base64.b64decode(i['url'])
+                    with open('tmp_image.png','wb') as file:
+                        file.write(image_data)
+                    image= discord.File('tmp_image.png')
+
+            await message.channel.send(f"{message.author.mention}{res}")
+
+            if image_bool:
+                await message.channel.send(file=image)
+
+
+loop = asyncio.get_event_loop()
+
+try:
+    loop.run_until_complete(client.start(DISCORD_BOT_KEY))
+except KeyboardInterrupt:
+    loop.run_until_complete(client.close())
+finally:
+    loop.close()