242 lines
8.7 KiB
Python
242 lines
8.7 KiB
Python
import logging
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import shutil
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import time
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import uuid
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from datetime import datetime, timedelta
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from flask import Flask, request, jsonify, Response, stream_with_context, g
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import json
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import os
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from flask_app.main.download import download_file
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from flask_app.main.招标文件解析 import main_processing
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app = Flask(__name__)
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class CSTFormatter(logging.Formatter):
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"""自定义的 Formatter，将日志的时间戳调整为中国标准时间（UTC+8）"""
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def formatTime(self, record, datefmt=None):
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ct = datetime.fromtimestamp(record.created) + timedelta(hours=8)
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if datefmt:
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s = ct.strftime(datefmt)
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else:
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try:
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s = ct.strftime("%Y-%m-%d %H:%M:%S")
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if self.usesTime():
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s = f"{s},{record.msecs:03d}"
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except ValueError:
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s = ct.strftime("%Y-%m-%d %H:%M:%S")
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return s
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@app.before_request
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def before_request():
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# 每个请求开始前初始化 logger
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create_logger() # 确保这个函数中设置了 g.logger
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def create_logger():
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unique_id = str(uuid.uuid4())
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g.unique_id = unique_id
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output_folder = f"flask_app/static/output/{unique_id}"
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os.makedirs(output_folder, exist_ok=True)
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log_filename = "log.txt"
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log_path = os.path.join(output_folder, log_filename)
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logger = logging.getLogger(unique_id)
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if not logger.handlers:
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file_handler = logging.FileHandler(log_path)
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file_formatter = CSTFormatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
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file_handler.setFormatter(file_formatter)
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logger.addHandler(file_handler)
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stream_handler = logging.StreamHandler()
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stream_handler.setFormatter(logging.Formatter('%(message)s'))
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logger.addHandler(stream_handler)
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logger.setLevel(logging.INFO)
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g.logger = logger
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@app.route('/upload', methods=['POST'])
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def zbparse():
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logger=g.logger
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file_url = validate_request()
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if isinstance(file_url, tuple): # Check if the returned value is an error response
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return file_url
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try:
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logger.info("starting parsing url:" + file_url)
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final_json_path, output_folder= download_and_process_file(file_url)
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if not final_json_path:
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return jsonify({'error': 'File processing failed'}), 500
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response = generate_response(final_json_path) # 先获取响应内容
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# remove_directory(output_folder) # 然后删除文件夹
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return response # 最后返回获取的响应
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except Exception as e:
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logger.error('Exception occurred: ' + str(e)) # 使用全局 logger 记录
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return jsonify({'error': str(e)}), 500
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# 流式
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# def zbparse():
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# file_url = validate_request()
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# if isinstance(file_url, tuple): # Check if the returned value is an error response
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# return file_url
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# try:
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# app.logger.info("starting parsing url:" + file_url)
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# return Response(stream_with_context(process_and_stream(file_url)), content_type='text/event-stream')
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# except Exception as e:
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# app.logger.error('Exception occurred: ' + str(e))
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# return jsonify({'error': str(e)}), 500
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# 分段返回
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# def process_and_stream(file_url):
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# logger = g.logger
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# unique_id = g.unique_id
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# output_folder = f"flask_app/static/output/{unique_id}" # 直接使用全局 unique_id 构建路径
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# filename = "ztbfile"
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# downloaded_filename = os.path.join(output_folder, filename)
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#
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# downloaded_filepath, file_type = download_file(file_url, downloaded_filename)
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#
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# if downloaded_filepath is None or file_type == 3:
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# logger.error("Unsupported file type or failed to download file")
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# error_response = {
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# 'message': 'File processing failed',
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# 'filename': None,
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# 'data': json.dumps({'error': 'File processing failed'})
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# }
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# yield f"data: {json.dumps(error_response)}\n\n"
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# return
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#
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# logger.info("Local file path: " + downloaded_filepath)
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#
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# for data in main_processing(output_folder, downloaded_filepath, file_type, unique_id):
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# response = {
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# 'message': 'Processing',
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# 'filename': os.path.basename(downloaded_filepath),
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# 'data': data
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# }
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# yield f"data: {json.dumps(response)}\n\n"
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#
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# final_response = {
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# 'message': 'File uploaded and processed successfully',
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# 'filename': os.path.basename(downloaded_filepath),
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# 'data': 'END'
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# }
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# yield f"data: {json.dumps(final_response)}\n\n"
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def validate_request():
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if not request.is_json:
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return jsonify({'error': 'Missing JSON in request'}), 400
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file_url = request.json.get('file_url')[0]
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if not file_url:
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return jsonify({'error': 'No file URL provided'}), 400
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return file_url
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def download_and_process_file(file_url):
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logger = g.logger
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unique_id = g.unique_id
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output_folder = f"flask_app/static/output/{unique_id}" # 直接使用全局 unique_id 构建路径
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filename = "ztbfile"
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downloaded_filename = os.path.join(output_folder, filename)
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# 下载文件，假设 download_file 函数已正确处理异常并返回文件路径
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downloaded_filepath, file_type = download_file(file_url, downloaded_filename)
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if downloaded_filepath is None or file_type == 3:
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logger.error("Unsupported file type or failed to download file")
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return None, output_folder
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logger.info("Local file path: " + downloaded_filepath)
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processed_file_path = main_processing(output_folder, downloaded_filepath, file_type, unique_id)
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return processed_file_path, output_folder
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@app.route('/api/test_zbparse', methods=['POST'])
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def test_zbparse():
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try:
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return Response(stream_with_context(test_process_and_stream()), content_type='text/event-stream')
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except Exception as e:
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app.logger.error('Exception occurred: ' + str(e))
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return jsonify({'error': str(e)}), 500
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def test_process_and_stream():
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# 模拟五段数据
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data_segments = [
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{"base_info": {"project_name": "测试项目1", "project_code": "TP001"}},
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{"review_standards": ["标准1", "标准2", "标准3"]},
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{"evaluation_standards": ["评估标准A", "评估标准B"]},
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{"invalid_requirements": ["无效要求X", "无效要求Y"]},
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{"bidding_documents_requirements": ["文件要求1", "文件要求2"]}
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]
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filename = "test_file.pdf"
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for i, data in enumerate(data_segments, 1):
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response = {
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'message': f'Processing segment {i}',
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'filename': filename,
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'data': data
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}
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yield f"data: {json.dumps(response)}\n\n"
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time.sleep(5) # 每隔2秒发送一段数据
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# 发送结束信号
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final_response = {
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'message': 'File processed successfully',
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'filename': filename,
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'data': 'END'
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}
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yield f"data: {json.dumps(final_response)}\n\n"
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def generate_response(final_json_path):
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logger = g.logger
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# 检查final_json_path是否为空或None
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if not final_json_path:
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logger.error('Empty or None path provided for final_json.')
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return jsonify({'error': 'No path provided for final_json.'}), 400
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if not os.path.exists(final_json_path):
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logger.error('final_json not found at path: ' + final_json_path)
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return jsonify({'error': 'final_json not found'}), 404
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with open(final_json_path, 'r', encoding='utf-8') as f:
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logger.info('final_json_path:' + final_json_path)
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zbparse_data = json.load(f)
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json_str = json.dumps(zbparse_data, ensure_ascii=False)
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return jsonify({
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'message': 'File uploaded and processed successfully',
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'filename': os.path.basename(final_json_path),
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'data': json_str
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})
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# @app.route('/get_json', methods=['POST'])
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# def testjson():
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# final_json_path="C:\\Users\\Administrator\\Desktop\\fsdownload\\temp4\\fd55f067-2cf6-475c-b7ce-4498f6606bf6\\final_result.json"
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# with open(final_json_path, 'r', encoding='utf-8') as f:
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# print('final_json_path:'+final_json_path)
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# zbparse_data = json.load(f)
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# json_str = json.dumps(zbparse_data, ensure_ascii=False)
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# print(json_str)
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# return jsonify({
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# 'message': 'File uploaded and processed successfully',
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# 'filename': os.path.basename(final_json_path),
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# 'data': json_str
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# })
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def remove_directory(path):
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logger = g.logger
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try:
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shutil.rmtree(path)
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logger.info(f"Successfully removed directory: {path}") # 使用全局 logger 记录
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except Exception as e:
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logger.error(f"Failed to remove directory {path}: {str(e)}") # 使用全局 logger 记录
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if __name__ == '__main__':
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app.run(debug=True, host='0.0.0.0', port=5000)
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