Django—图形验证码

配置

$ pip install django-simple-captcha
# 如果安装有依赖库问题，请执⾏下⾯的安装
apt-get -y install libz-dev libjpeg-dev libfreetype6-dev python-dev

# settings.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'App02',
    'App',
    'captcha'  # 安装应用
]


# 图形验证码配置
# 证码设置
CAPTCHA_IMAGESIZE = (8,45)   # 设置captcha图片大小

CAPTCHA_LENGTH =4   #字符个数
CAPTCHA_TIMEOUT =1  #超时(minutes)*

# 输出格式：输入框验证码图片隐藏域•
# '%(image)s %(hidden_field)s %(text_field)s'
CAPTCHA_OUTPUT_FORMAT ='%(text_field)s %(image)s %(hidden_field)s'
CAPTCHA_NOISE_FUNCTIONS =(
    'captcha.helpers.noise_null',
    'captcha.helpers.noise_arcs',
    'captcha.helpers.noise_dots',
)
CAPTCHA_CHALLENGE_FUNCT = 'captcha.helpers.random_char_challenge'


# 最后要迁移数据库：
# python manage.py migrate

实现

from django import forms
from captcha.fields import CaptchaField
class LoginForm(forms.Form):
    captcha = CaptchaField()  # 验证码字段

def handle_captcha(request):
    if request.method == "POST":
        form = LoginForm(request.POST,request)
        print(form)
        if form.is_valid():
            print("验证通过")
            return HttpResponse("验证通过")
        else:
            return render(request, 'app/verifycode.html', locals())
    else:
        form = LoginForm()
        return render(request,'app/verifycode.html',locals())

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="{% url 'App:yzm' %}" method="post">
    {% csrf_token %}
    <input type="text" name="yzm"> <img src="{{ image_url }}" alt=""> <br>
    <input type="hidden" name="code" value="{{ new_key }}">
    <input type="submit">
</form>

</body>
</html>

Jhinhua

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Django—图形验证码

配置

实现

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