749 lines
24 KiB
Python
749 lines
24 KiB
Python
import base64
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from flask import Flask, request, render_template, redirect, url_for, jsonify, session, flash, send_from_directory
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from werkzeug.utils import secure_filename
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import os
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import uuid
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from PIL import Image
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import re
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import json
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import requests
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from functools import wraps
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from ESConnect import *
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from json_converter import json_to_string, string_to_json
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from openai import OpenAI
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# import config
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# 创建Flask应用实例
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app = Flask(__name__)
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# app.config.from_object(config.Config)
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# 设置会话密钥，用于加密会话数据
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app.secret_key = 'your-secret-key-change-this-in-production'
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# OCR和信息提取函数，使用大模型API处理图片并提取结构化信息
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# 权限装饰器
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def login_required(f):
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"""要求用户登录的装饰器"""
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@wraps(f)
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def decorated_function(*args, **kwargs):
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if 'user_id' not in session:
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flash('请先登录', 'error')
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return redirect(url_for('login'))
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return f(*args, **kwargs)
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return decorated_function
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def admin_required(f):
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"""要求管理员权限的装饰器"""
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@wraps(f)
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def decorated_function(*args, **kwargs):
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if 'user_id' not in session:
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flash('请先登录', 'error')
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return redirect(url_for('login'))
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if session.get('permission', 1) != 0:
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flash('权限不足，需要管理员权限', 'error')
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return redirect(url_for('index'))
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return f(*args, **kwargs)
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return decorated_function
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def user_or_admin_required(f):
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"""要求普通用户或管理员权限的装饰器"""
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@wraps(f)
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def decorated_function(*args, **kwargs):
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if 'user_id' not in session:
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flash('请先登录', 'error')
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return redirect(url_for('login'))
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permission = session.get('permission', 1)
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if permission not in [0, 1]:
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flash('权限不足', 'error')
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return redirect(url_for('index'))
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return f(*args, **kwargs)
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return decorated_function
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def ocr_and_extract_info(image_path):
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"""
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使用大模型API进行OCR识别并提取图片中的结构化信息
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参数:
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image_path (str): 图片文件路径
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返回:
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dict: 包含提取信息的字典，格式为 {'id': '', 'name': '', 'students': '', 'teacher': ''}
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"""
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def encode_image(image_path):
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"""
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将图片编码为base64格式
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参数:
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image_path (str): 图片文件路径
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返回:
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str: base64编码的图片字符串
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"""
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with open(image_path, "rb") as image_file:
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return base64.b64encode(image_file.read()).decode('utf-8')
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# 将图片转换为base64编码
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base64_image = encode_image(image_path)
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# 初始化OpenAI客户端，使用百度AI Studio的API
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client = OpenAI(
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api_key="188f57db3766e02ed2c7e18373996d84f4112272",
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# 含有 AI Studio 访问令牌的环境变量，https://aistudio.baidu.com/account/accessToken,
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base_url="https://aistudio.baidu.com/llm/lmapi/v3", # aistudio 大模型 api 服务域名
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)
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# 调用大模型API进行图片识别和信息提取
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chat_completion = client.chat.completions.create(
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messages=[
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{'role': 'system', 'content': '你是一个能理解图片和文本的助手，请根据用户提供的信息进行回答。'},
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{'role': 'user', "content": [
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{"type": "text", "text": "请识别这张图片中的信息，将你认为重要的数据转换为不包含嵌套的json，不要显示其它信息以便于解析"
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"直接输出json结果即可"
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"你可以自行决定使用哪些json字段"},
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{
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"type": "image_url",
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"image_url": {
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"url": f"data:image/png;base64,{base64_image}"
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}
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}
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]}
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],
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model="ernie-4.5-turbo-vl-32k", # 使用百度文心大模型
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)
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# 获取API返回的文本内容
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response_text = chat_completion.choices[0].message.content
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# 添加调试信息：输出模型返回的原始字符串
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print("=" * 50)
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print("模型返回的原始字符串:")
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print(response_text)
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print("=" * 50)
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def parse_respound(text):
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"""
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解析API返回的文本，提取JSON数据
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参数:
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text (str): API返回的文本
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返回:
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dict or None: 解析成功返回字典，失败返回None
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"""
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# 尝试直接解析标准JSON
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try:
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result=json.loads(text)
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if result:
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print("✓ 成功解析标准JSON格式")
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return result
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except json.JSONDecodeError:
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print("✗ 无法解析标准JSON格式")
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pass
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# 提取markdown代码块中的内容
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code_block = re.search(r'```json\n(.*?)```', text, re.DOTALL)
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if code_block:
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try:
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result=json.loads(code_block.group(1))
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if result:
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print("✓ 成功解析markdown代码块中的JSON")
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return result
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except json.JSONDecodeError:
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print("✗ 无法解析markdown代码块中的JSON")
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pass
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# 尝试替换单引号并解析
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try:
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fixed_json = text.replace("'", "\"")
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result=json.loads(fixed_json)
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if(result):
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print("✓ 成功解析替换单引号后的JSON")
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return result
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except json.JSONDecodeError:
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print("✗ 无法解析替换单引号后的JSON")
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pass
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# 解析API返回的文本
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result_data = parse_respound(response_text)
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# 添加调试信息：输出解析结果
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print("解析结果:")
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if result_data:
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print(f"✓ 解析成功: {result_data}")
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else:
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print("✗ 解析失败，返回None")
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print("=" * 50)
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return result_data
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"""
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模拟大模型识别图像并返回结构化JSON。
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实际应调用Qwen-VL或其他OCR+解析服务。
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"""
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# 登录页面路由
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@app.route('/login', methods=['GET', 'POST'])
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def login():
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"""
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处理用户登录
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GET: 显示登录页面
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POST: 处理登录表单提交
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"""
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if request.method == 'POST':
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username = request.form.get('username')
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password = request.form.get('password')
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if not username or not password:
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flash('请输入用户名和密码', 'error')
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return render_template('login.html')
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# 验证用户
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user_data = verify_user(username, password)
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if user_data:
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# 登录成功，设置会话
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session['user_id'] = user_data['user_id']
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session['username'] = user_data['username']
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session['permission'] = user_data['premission']
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flash(f'欢迎回来，{username}！', 'success')
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return redirect(url_for('index'))
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else:
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flash('用户名或密码错误', 'error')
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return render_template('login.html')
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return render_template('login.html')
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# 登出路由
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@app.route('/logout')
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def logout():
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"""
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处理用户登出
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"""
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session.clear()
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flash('已成功登出', 'info')
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return redirect(url_for('login'))
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# 用户管理页面路由
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@app.route('/user_management')
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@admin_required
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def user_management():
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"""
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显示用户管理页面（仅管理员可访问）
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"""
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users = get_all_users()
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return render_template('user_management.html', users=users)
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# 注册新用户路由
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@app.route('/register', methods=['GET', 'POST'])
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@admin_required
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def register():
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"""
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注册新用户（仅管理员可访问）
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GET: 显示注册页面
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POST: 处理注册表单提交
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"""
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if request.method == 'POST':
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username = request.form.get('username')
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password = request.form.get('password')
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confirm_password = request.form.get('confirm_password')
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permission = int(request.form.get('permission', 1))
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# 验证输入
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if not username or not password:
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flash('请输入用户名和密码', 'error')
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return render_template('register.html')
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if password != confirm_password:
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flash('两次输入的密码不一致', 'error')
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return render_template('register.html')
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if len(password) < 6:
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flash('密码长度至少6位', 'error')
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return render_template('register.html')
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# 检查用户名是否已存在
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existing_user = get_user_by_username(username)
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if existing_user:
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flash('用户名已存在', 'error')
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return render_template('register.html')
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# 创建新用户
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success = create_user(username, password, permission)
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if success:
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flash(f'用户 {username} 创建成功', 'success')
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return redirect(url_for('user_management'))
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else:
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flash('创建用户失败', 'error')
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return render_template('register.html')
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return render_template('register.html')
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|
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# 修改用户密码路由
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@app.route('/change_password/<username>', methods=['POST'])
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@admin_required
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def change_password(username):
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"""
|
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修改用户密码（仅管理员可访问）
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||
"""
|
||
new_password = request.form.get('new_password')
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confirm_password = request.form.get('confirm_password')
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||
|
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if not new_password or not confirm_password:
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flash('请输入新密码', 'error')
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return redirect(url_for('user_management'))
|
||
|
||
if new_password != confirm_password:
|
||
flash('两次输入的密码不一致', 'error')
|
||
return redirect(url_for('user_management'))
|
||
|
||
if len(new_password) < 6:
|
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flash('密码长度至少6位', 'error')
|
||
return redirect(url_for('user_management'))
|
||
|
||
success = update_user_password(username, new_password)
|
||
if success:
|
||
flash(f'用户 {username} 密码修改成功', 'success')
|
||
else:
|
||
flash(f'修改用户 {username} 密码失败', 'error')
|
||
|
||
return redirect(url_for('user_management'))
|
||
|
||
|
||
# 修改用户权限路由
|
||
@app.route('/change_permission/<username>', methods=['POST'])
|
||
@admin_required
|
||
def change_permission(username):
|
||
"""
|
||
修改用户权限（仅管理员可访问）
|
||
"""
|
||
new_permission = int(request.form.get('permission', 1))
|
||
|
||
success = update_user_permission(username, new_permission)
|
||
if success:
|
||
flash(f'用户 {username} 权限修改成功', 'success')
|
||
else:
|
||
flash(f'修改用户 {username} 权限失败', 'error')
|
||
|
||
return redirect(url_for('user_management'))
|
||
|
||
|
||
# 删除用户路由
|
||
@app.route('/delete_user/<username>', methods=['POST'])
|
||
@admin_required
|
||
def delete_user_route(username):
|
||
"""
|
||
删除用户（仅管理员可访问）
|
||
"""
|
||
success = delete_user(username)
|
||
if success:
|
||
flash(f'用户 {username} 删除成功', 'success')
|
||
else:
|
||
flash(f'删除用户 {username} 失败', 'error')
|
||
|
||
return redirect(url_for('user_management'))
|
||
|
||
|
||
# 个人设置页面路由
|
||
@app.route('/profile')
|
||
@login_required
|
||
def profile():
|
||
"""
|
||
显示个人设置页面
|
||
"""
|
||
return render_template('profile.html')
|
||
|
||
|
||
# 修改个人密码路由
|
||
@app.route('/change_own_password', methods=['POST'])
|
||
@login_required
|
||
def change_own_password():
|
||
"""
|
||
用户修改自己的密码
|
||
"""
|
||
old_password = request.form.get('old_password')
|
||
new_password = request.form.get('new_password')
|
||
confirm_password = request.form.get('confirm_password')
|
||
|
||
# 验证输入
|
||
if not old_password or not new_password or not confirm_password:
|
||
flash('请填写所有密码字段', 'error')
|
||
return redirect(url_for('profile'))
|
||
|
||
if new_password != confirm_password:
|
||
flash('两次输入的新密码不一致', 'error')
|
||
return redirect(url_for('profile'))
|
||
|
||
if len(new_password) < 6:
|
||
flash('新密码长度至少6位', 'error')
|
||
return redirect(url_for('profile'))
|
||
|
||
# 调用修改密码函数
|
||
success = update_user_own_password(session['user_id'], old_password, new_password)
|
||
if success:
|
||
flash('密码修改成功', 'success')
|
||
else:
|
||
flash('密码修改失败，请检查旧密码是否正确', 'error')
|
||
|
||
return redirect(url_for('profile'))
|
||
|
||
|
||
# 个人数据页面路由
|
||
@app.route('/my_data')
|
||
@login_required
|
||
def my_data():
|
||
"""
|
||
显示用户自己的数据
|
||
"""
|
||
user_id = session['user_id']
|
||
keyword = request.args.get('keyword', '')
|
||
|
||
# 查询用户自己的数据
|
||
if keyword:
|
||
data = search_data_by_user(user_id, keyword)
|
||
else:
|
||
data = search_data_by_user(user_id)
|
||
|
||
# 将data字段从字符串转换回JSON格式以便显示
|
||
processed_data = []
|
||
for item in data:
|
||
if 'data' in item and item['data']:
|
||
try:
|
||
# 将data字段的字符串转换回JSON
|
||
original_data = string_to_json(item['data'])
|
||
# 合并原始数据和其他字段
|
||
display_item = {
|
||
'_id': item['_id'],
|
||
'image': item.get('image', ''),
|
||
**original_data # 展开原始数据字段
|
||
}
|
||
processed_data.append(display_item)
|
||
except Exception as e:
|
||
# 如果转换失败，保持原始格式
|
||
processed_data.append(item)
|
||
else:
|
||
processed_data.append(item)
|
||
|
||
return render_template('my_data.html', data=processed_data, keyword=keyword)
|
||
|
||
# 首页路由
|
||
@app.route('/')
|
||
@login_required
|
||
def index():
|
||
"""
|
||
渲染首页模板
|
||
|
||
返回:
|
||
str: 渲染后的HTML页面
|
||
"""
|
||
return render_template('index.html')
|
||
|
||
# 图片上传路由
|
||
@app.route('/upload', methods=['POST'])
|
||
@user_or_admin_required
|
||
def upload_image():
|
||
"""
|
||
处理图片上传请求，调用OCR识别但不存储结果
|
||
|
||
返回:
|
||
JSON: 识别结果，供用户编辑确认
|
||
"""
|
||
# 获取上传的文件
|
||
file = request.files.get('file')
|
||
if not file:
|
||
return jsonify({"error": "No file uploaded"}), 400
|
||
|
||
# 保存上传的图片
|
||
filename = f"{uuid.uuid4()}_{file.filename}"
|
||
image_path = os.path.join("image", filename)
|
||
file.save(image_path)
|
||
|
||
# 调用大模型进行识别
|
||
try:
|
||
print(f"开始处理图片: {image_path}")
|
||
original_data = ocr_and_extract_info(image_path) # 获取原始JSON数据
|
||
if original_data:
|
||
print(f"识别成功: {original_data}")
|
||
# 返回识别结果和图片文件名，供用户编辑确认
|
||
return jsonify({
|
||
"message": "识别成功，请确认数据后点击录入",
|
||
"data": original_data,
|
||
"image": filename
|
||
})
|
||
else:
|
||
print("✗ 无法识别图片内容")
|
||
return jsonify({"error": "无法识别图片内容"}), 400
|
||
except Exception as e:
|
||
print(f"✗ 处理过程中发生错误: {str(e)}")
|
||
return jsonify({"error": str(e)}), 500
|
||
|
||
# 确认录入路由
|
||
@app.route('/confirm', methods=['POST'])
|
||
@user_or_admin_required
|
||
def confirm_data():
|
||
"""
|
||
确认并录入用户编辑后的数据
|
||
|
||
返回:
|
||
JSON: 录入成功或失败的响应
|
||
"""
|
||
try:
|
||
# 获取前端提交的数据
|
||
request_data = request.get_json()
|
||
if not request_data:
|
||
return jsonify({"error": "没有接收到数据"}), 400
|
||
|
||
# 获取编辑后的数据和图片文件名
|
||
edited_data = request_data.get('data', {})
|
||
image_filename = request_data.get('image', '')
|
||
|
||
if not edited_data:
|
||
return jsonify({"error": "数据不能为空"}), 400
|
||
|
||
# 使用json_converter将JSON数据转换为字符串
|
||
data_string = json_to_string(edited_data)
|
||
print(f"转换后的数据字符串: {data_string}")
|
||
|
||
# 构造新的数据结构，只包含data和image字段，并添加用户ID
|
||
processed_data = {
|
||
"data": data_string,
|
||
"image": image_filename, # 存储图片文件名
|
||
"user_id": session['user_id'] # 添加用户ID关联
|
||
}
|
||
print(f"准备存储的数据: {processed_data}")
|
||
|
||
# 存入ES
|
||
insert_data(processed_data)
|
||
print("✓ 数据成功存储到Elasticsearch")
|
||
|
||
return jsonify({"message": "数据录入成功", "data": edited_data})
|
||
|
||
except Exception as e:
|
||
print(f"✗ 录入过程中发生错误: {str(e)}")
|
||
return jsonify({"error": str(e)}), 500
|
||
|
||
# 搜索路由
|
||
@app.route('/search')
|
||
@user_or_admin_required
|
||
def search():
|
||
"""
|
||
处理搜索请求，从Elasticsearch中检索匹配的数据
|
||
|
||
返回:
|
||
JSON: 搜索结果列表
|
||
"""
|
||
keyword = request.args.get('q')
|
||
if not keyword:
|
||
return jsonify([])
|
||
results = search_by_any_field(keyword)
|
||
|
||
# 处理搜索结果，将data字段转换回JSON格式
|
||
processed_results = []
|
||
for result in results:
|
||
if '_source' in result and 'data' in result['_source']:
|
||
try:
|
||
# 将data字段的字符串转换回JSON
|
||
original_data = string_to_json(result['_source']['data'])
|
||
# 构造新的结果格式
|
||
processed_result = {
|
||
'_id': result.get('_id', ''),
|
||
'_source': {
|
||
'image': result['_source'].get('image', ''),
|
||
**original_data # 展开原始数据字段
|
||
}
|
||
}
|
||
processed_results.append(processed_result)
|
||
except Exception as e:
|
||
# 如果转换失败，保持原始格式
|
||
processed_results.append(result)
|
||
else:
|
||
processed_results.append(result)
|
||
|
||
print(processed_results)
|
||
return jsonify(processed_results)
|
||
|
||
# 结果页面路由
|
||
@app.route('/results')
|
||
@user_or_admin_required
|
||
def results_page():
|
||
"""
|
||
渲染搜索结果页面
|
||
|
||
返回:
|
||
str: 渲染后的HTML页面
|
||
"""
|
||
return render_template('results.html')
|
||
|
||
# 显示所有数据路由
|
||
@app.route('/all')
|
||
@admin_required
|
||
def show_all():
|
||
"""
|
||
获取所有数据并渲染到页面
|
||
|
||
返回:
|
||
str: 渲染后的HTML页面，包含所有数据
|
||
"""
|
||
all_data = search_all()
|
||
# 将data字段从字符串转换回JSON格式以便显示
|
||
processed_data = []
|
||
for item in all_data:
|
||
if 'data' in item and item['data']:
|
||
try:
|
||
# 将data字段的字符串转换回JSON
|
||
original_data = string_to_json(item['data'])
|
||
# 合并原始数据和其他字段
|
||
display_item = {
|
||
'_id': item['_id'],
|
||
'image': item.get('image', ''),
|
||
**original_data # 展开原始数据字段
|
||
}
|
||
processed_data.append(display_item)
|
||
except Exception as e:
|
||
# 如果转换失败，保持原始格式
|
||
processed_data.append(item)
|
||
else:
|
||
processed_data.append(item)
|
||
|
||
return render_template('all.html', data=processed_data)
|
||
|
||
# 添加图片路由
|
||
@app.route('/image/<filename>')
|
||
def serve_image(filename):
|
||
"""
|
||
提供图片文件服务
|
||
|
||
参数:
|
||
filename (str): 图片文件名
|
||
|
||
返回:
|
||
Response: 图片文件响应
|
||
"""
|
||
from flask import send_from_directory
|
||
return send_from_directory('image', filename)
|
||
|
||
# 删除数据路由
|
||
@app.route('/delete/<doc_id>', methods=['POST'])
|
||
@login_required
|
||
def delete_entry(doc_id):
|
||
"""
|
||
根据文档ID删除数据
|
||
|
||
参数:
|
||
doc_id (str): 要删除的文档ID
|
||
|
||
返回:
|
||
重定向到所有数据页面或错误信息
|
||
"""
|
||
user_id = session['user_id']
|
||
user_permission = session.get('permission', 1)
|
||
|
||
# 管理员可以删除所有数据，普通用户只能删除自己的数据
|
||
if user_permission == 0: # 管理员
|
||
success = delete_by_id(doc_id)
|
||
redirect_url = 'show_all'
|
||
else: # 普通用户
|
||
success = delete_data_by_id(doc_id, user_id)
|
||
redirect_url = 'my_data'
|
||
|
||
if success:
|
||
return redirect(url_for(redirect_url))
|
||
if delete_by_id(doc_id):
|
||
return redirect(url_for('show_all'))
|
||
else:
|
||
return "删除失败", 500
|
||
|
||
|
||
@app.route('/edit/<doc_id>', methods=['GET', 'POST'])
|
||
@login_required
|
||
def edit_entry(doc_id):
|
||
"""
|
||
编辑数据条目（用户只能编辑自己的数据）
|
||
"""
|
||
if request.method == 'GET':
|
||
# 获取要编辑的数据
|
||
try:
|
||
# 先获取文档检查权限
|
||
response = requests.get(
|
||
f"{ES_URL}/{data_index_name}/_doc/{doc_id}",
|
||
auth=AUTH
|
||
)
|
||
response.raise_for_status()
|
||
doc = response.json()
|
||
|
||
if not doc.get("found"):
|
||
flash('数据不存在', 'error')
|
||
return redirect(url_for('my_data'))
|
||
|
||
# 检查权限
|
||
user_id = session['user_id']
|
||
user_permission = session.get('permission', 1)
|
||
doc_user_id = doc["_source"].get("user_id")
|
||
|
||
# 管理员可以编辑所有数据，普通用户只能编辑自己的数据
|
||
if user_permission != 0 and doc_user_id != user_id:
|
||
flash('您无权编辑此数据', 'error')
|
||
return redirect(url_for('my_data'))
|
||
|
||
# 解析数据
|
||
data_str = doc["_source"].get("data", "{}")
|
||
original_data = string_to_json(data_str)
|
||
|
||
edit_data = {
|
||
'_id': doc_id,
|
||
'image': doc["_source"].get('image', ''),
|
||
**original_data
|
||
}
|
||
|
||
return render_template('edit.html', data=edit_data)
|
||
|
||
except Exception as e:
|
||
flash('获取数据失败', 'error')
|
||
return redirect(url_for('my_data'))
|
||
|
||
else: # POST 请求 - 保存编辑
|
||
try:
|
||
# 获取编辑后的数据
|
||
edited_data = {}
|
||
for key, value in request.form.items():
|
||
if key != '_id' and key != 'image':
|
||
edited_data[key] = value
|
||
|
||
# 转换为字符串格式
|
||
data_string = json_to_string(edited_data)
|
||
|
||
# 构造更新数据
|
||
updated_data = {
|
||
"data": data_string,
|
||
"image": request.form.get('image', ''),
|
||
"user_id": session['user_id']
|
||
}
|
||
|
||
# 更新数据
|
||
success = update_data_by_id(doc_id, updated_data, session['user_id'])
|
||
|
||
if success:
|
||
flash('数据更新成功', 'success')
|
||
else:
|
||
flash('数据更新失败', 'error')
|
||
|
||
# 根据用户权限重定向
|
||
if session.get('permission', 1) == 0:
|
||
return redirect(url_for('show_all'))
|
||
else:
|
||
return redirect(url_for('my_data'))
|
||
|
||
except Exception as e:
|
||
flash('保存数据失败', 'error')
|
||
return redirect(url_for('my_data'))
|
||
|
||
# 主程序入口
|
||
if __name__ == '__main__':
|
||
# 创建Elasticsearch索引
|
||
create_index_with_mapping()
|
||
# 创建图片存储目录
|
||
os.makedirs("image", exist_ok=True)
|
||
# 启动Flask应用
|
||
app.run(use_reloader=False) |