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Browse files- API.py +210 -0
- requirements.txt +7 -0
API.py
ADDED
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from flask import Flask, request, Response, jsonify, stream_with_context
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import requests
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import json
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import sseclient
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import urllib3
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import uuid
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import time
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from typing import List, Dict, Any
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# 禁用 SSL 警告
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urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
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app = Flask(__name__)
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# 认证令牌
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HIGHLIGHT_AUTH_TOKEN = "Bearer 此句替换为你的jwt"
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HIGHLIGHT_API_URL = "https://chat-backend.highlightai.com/api/v1/chat"
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# API 请求头
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def get_highlight_headers():
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return {
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"accept": "*/*",
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"accept-encoding": "gzip, deflate, br, zstd",
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"accept-language": "zh-CN",
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"authorization": HIGHLIGHT_AUTH_TOKEN,
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"content-type": "application/json",
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"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Highlight/1.0.22 Chrome/126.0.6478.234 Electron/31.7.3 Safari/537.36",
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"sec-ch-ua": "\"Not/A)Brand\";v=\"8\", \"Chromium\";v=\"126\"",
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"sec-ch-ua-mobile": "?0",
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"sec-ch-ua-platform": "\"Windows\"",
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}
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@app.route('/v1/models', methods=['GET'])
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def list_models():
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"""返回可用模型列表"""
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return jsonify({
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"object": "list",
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"data": [
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{
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"id": "claude-3-7-sonnet",
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"object": "model",
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"created": 1717027200,
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"owned_by": "anthropic"
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}
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]
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})
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@app.route('/v1/chat/completions', methods=['POST'])
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def chat_completions():
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"""处理聊天完成请求"""
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data = request.json
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# 提取请求参数
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messages = data.get('messages', [])
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stream = data.get('stream', False)
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# 将 OpenAI 格式的消息转换为单个提示
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prompt = format_messages_to_prompt(messages)
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# 准备 Highlight 请求
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highlight_data = {
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"prompt": prompt,
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"attachedContext": [{"type": "aboutMe", "text": "[\"\\n\"]"}],
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"additionalTools": [],
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"backendPlugins": []
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}
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if stream:
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return stream_response(highlight_data)
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else:
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return non_stream_response(highlight_data)
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def format_messages_to_prompt(messages: List[Dict[str, Any]]) -> str:
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"""将 OpenAI 格式的消息列表转换为单个提示字符串,保留角色前缀"""
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formatted_messages = []
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for message in messages:
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role = message.get('role', '')
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content = message.get('content', '')
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if role and content:
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# 保留角色前缀
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formatted_messages.append(f"{role}: {content}")
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# 将所有消息连接起来
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return "\n\n".join(formatted_messages)
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def stream_response(highlight_data: Dict[str, Any]):
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"""处理流式响应"""
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def generate():
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try:
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response = requests.post(
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HIGHLIGHT_API_URL,
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headers=get_highlight_headers(),
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json=highlight_data,
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stream=True,
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verify=False
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)
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if response.status_code != 200:
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yield f"data: {json.dumps({'error': {'message': f'Highlight API returned status code {response.status_code}', 'type': 'api_error'}})}\n\n"
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return
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client = sseclient.SSEClient(response)
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# 为这个响应创建一个唯一ID
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response_id = f"chatcmpl-{str(uuid.uuid4())}"
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created = int(time.time())
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# 发送初始 SSE 消息
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yield f"data: {json.dumps({'id': response_id, 'object': 'chat.completion.chunk', 'created': created, 'model': 'claude-3-7-sonnet-20240620', 'choices': [{'index': 0, 'delta': {'role': 'assistant'}, 'finish_reason': None}]})}\n\n"
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# 处理 SSE 事件
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for event in client.events():
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event_data = json.loads(event.data)
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if event_data.get("type") == "text":
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content = event_data.get("content", "")
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if content:
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chunk = {
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'id': response_id,
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'object': 'chat.completion.chunk',
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'created': created,
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'model': 'claude-3-7-sonnet',
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'choices': [
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{
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'index': 0,
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'delta': {'content': content},
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'finish_reason': None
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}
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]
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}
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yield f"data: {json.dumps(chunk)}\n\n"
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# 发送完成信息
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yield f"data: {json.dumps({'id': response_id, 'object': 'chat.completion.chunk', 'created': created, 'model': 'claude-3-7-sonnet-20240620', 'choices': [{'index': 0, 'delta': {}, 'finish_reason': 'stop'}]})}\n\n"
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yield "data: [DONE]\n\n"
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except Exception as e:
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yield f"data: {json.dumps({'error': {'message': str(e), 'type': 'server_error'}})}\n\n"
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return Response(stream_with_context(generate()), mimetype='text/event-stream')
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def non_stream_response(highlight_data: Dict[str, Any]):
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"""处理非流式响应"""
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try:
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response = requests.post(
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HIGHLIGHT_API_URL,
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headers=get_highlight_headers(),
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json=highlight_data,
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stream=True,
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verify=False
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)
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if response.status_code != 200:
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return jsonify({
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'error': {
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'message': f'Highlight API returned status code {response.status_code}',
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'type': 'api_error'
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}
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}), response.status_code
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client = sseclient.SSEClient(response)
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# 收集完整响应
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full_response = ""
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for event in client.events():
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event_data = json.loads(event.data)
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if event_data.get("type") == "text":
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full_response += event_data.get("content", "")
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# 创建 OpenAI 格式的响应
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response_id = f"chatcmpl-{str(uuid.uuid4())}"
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created = int(time.time())
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return jsonify({
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'id': response_id,
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'object': 'chat.completion',
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'created': created,
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'model': 'claude-3-7-sonnet',
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'choices': [
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{
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'index': 0,
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'message': {
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'role': 'assistant',
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'content': full_response
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},
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'finish_reason': 'stop'
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}
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],
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'usage': {
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'prompt_tokens': -1,
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'completion_tokens': -1,
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'total_tokens': -1
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}
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})
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except Exception as e:
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return jsonify({
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'error': {
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'message': str(e),
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'type': 'server_error'
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}
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}), 500
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=8080, debug=False)
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requirements.txt
ADDED
@@ -0,0 +1,7 @@
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flask==2.3.3
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requests==2.31.0
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sseclient-py==1.7.2
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urllib3==2.0.7
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