Dynamic webpage tamper-proofing technology is an important technique to ensure the security and stability of websites. This article introduces the importance and current status of dynamic webpage tamper-proofing technology in detail, analyzes the problems existing in current dynamic webpage tamper-proofing techniques, and proposes a dynamic webpage tamper-proofing scheme based on the AES symmetric encryption algorithm. This scheme encrypts webpage content to effectively prevent hackers from tampering with database content and monitors the security status of the database in real-time, promptly detecting cases of database tampering and taking corresponding security measures.
Django framework has made significant contributions to dynamic webpage tamper-proofing. Firstly, Django provides built-in CSRF protection mechanisms that can effectively prevent cross-site request forgery attacks. Secondly, Django provides a number of built-in security-related middleware, such as X-Content-Type-Options, X-XSS-Protection, and X-Frame-Options, which can help developers prevent common security vulnerabilities, such as clickjacking and XSS attacks. In addition, Django provides built-in password hashing and encryption mechanisms that can help developers securely store user passwords and sensitive data. Finally, Django provides flexible authentication and authorization mechanisms that can help developers implement fine-grained access control and permission management. Based on the advantages of the Django framework, a highly efficient and secure dynamic webpage tamper-proofing system can be developed quickly. The experimental results show that this scheme has high security and practicality, and has broad application prospects.
from django.shortcuts import render from django.http import HttpResponse from django.db import connection from mysite import settings defhello_world(request): return HttpResponse("Hello World") defindex(request): key = settings.SECRET_KEY name = request.POST.get('name') no = request.POST.get('no') all = request.POST.get('all') nname = request.POST.get('nname') nno = request.POST.get('nno') ngrade = request.POST.get('ngrade') result = {} result['s'] = False result['n'] = False result['all'] = False result['insert'] = False cursor = connection.cursor() if name: result['s'] = True sql = "select Sname, Sno, AES_DECRYPT(UNHEX(Grade),'{}') from S where S.Sname='{}'".format(key, name) cursor.execute(sql) rows = cursor.fetchall() rows = [(name, no, grade.decode().strip() ifisinstance(grade, bytes) else'已被篡改') for name, no, grade in rows] result['sr'] = rows result['sn'] = name elif no: result['n'] = True sql = "select Sname, Sno, AES_DECRYPT(UNHEX(Grade),'{}') from S where S.Sno='{}'".format(key, no) cursor.execute(sql) rows = cursor.fetchall() rows = [(name, no, grade.decode().strip() ifisinstance(grade, bytes) else'已被篡改') for name, no, grade in rows] result['sr'] = rows result['sn'] = no elif nname and nno and ngrade: sql = "insert into S (Sname, Sno, Grade) values ('{}', '{}', HEX(AES_ENCRYPT('{}','{}')))".format(nname, nno, ngrade, key) cursor.execute(sql) rows = cursor.fetchall() rows = [(name, no, grade.decode().strip()) for name, no, grade in rows] result['insert'] = True elifall == 'all': result['all'] = True sql = "select Sname, Sno, AES_DECRYPT(UNHEX(Grade),'{}') from S where 1".format(key) cursor.execute(sql) rows = cursor.fetchall() rows = [(name, no, grade.decode().strip() ifisinstance(grade, bytes) else'已被篡改') for name, no, grade in rows] result['sr'] = rows result['sn'] = '所有学生' return render(request, 'index.html', result)
这是一个 Django 视图函数，接收一个 HTTP 请求对象 request。该函数首先获取 POST 请求中的参数 name、no、all、nname、nno 和 ngrade。然后，该函数定义了一个字典 result，用于存储查询结果和其他信息。接下来，该函数定义了一些变量和默认值，并创建了一个数据库游标 cursor。接着，该函数使用条件语句判断请求中的参数，如果参数 name 或 no 不为空，则查询学生信息并将结果存储在 result 字典中。如果参数 nname、nno 和 ngrade 均不为空，则向数据库中插入一条学生信息。如果参数 all 的值为 ‘all’，则查询所有学生信息并将结果存储在 result 字典中。最后，该函数使用 render 函数将结果渲染到 index.html 模板中，并返回渲染后的 HTML 页面。
if name: result['s'] = True sql = "select Sname, Sno, AES_DECRYPT(UNHEX(Grade),'{}') from S where S.Sname='{}'".format(key, name) cursor.execute(sql) rows = cursor.fetchall() rows = [(name, no, grade.decode().strip() if isinstance(grade, bytes) else '已被篡改') for name, no, grade in rows] result['sr'] = rows result['sn'] = name
defsave(self, *args, **kwargs): key = 'your_secret_key'# Replace with your secret key if self.grade: encrypted_grade = self.grade.encode('utf-8').hex() self.grade = encrypted_grade super(S, self).save(*args, **kwargs)
classMeta: managed = False db_table = 's'
views.py
from django.shortcuts import render, redirect from django.http import HttpResponse from django.db import connection from django.db.models import CharField from django.db.models.functions import Cast from django.db.models.expressions import RawSQL from mysite import settings
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