django添加验证码
1.安装recaptcha,命令:apt-get install ?python-recaptcha
2.到https://www.google.com/recaptcha/admin/create去注册,获得public-key,private-key
3.在settings.py中添加:
RECAPTCHA_PUBLIC_KEY = '*public-key*'RECAPTCHA_PRIVATE_KEY = '*private-key*'
4.在项目根目录下新建recaptchawidget文件夹,?并新建__init__.py,fields.py,?widgets.py3个文件
5.编辑widgets.py:
from django import formsfrom django.utils.safestring import mark_safefrom django.conf import settingsfrom recaptcha.client import captcha class ReCaptcha(forms.widgets.Widget): recaptcha_challenge_name = 'recaptcha_challenge_field' recaptcha_response_name = 'recaptcha_response_field' def render(self, name, value, attrs=None): return mark_safe(u'%s' % captcha.displayhtml(settings.RECAPTCHA_PUBLIC_KEY)) def value_from_datadict(self, data, files, name): return [data.get(self.recaptcha_challenge_name, None), data.get(self.recaptcha_response_name, None)]
?6.编辑fields.py:
from django.conf import settingsfrom django import formsfrom django.utils.encoding import smart_unicodefrom django.utils.translation import ugettext_lazy as _from recaptchawidget.widgets import ReCaptchafrom recaptcha.client import captcha class ReCaptchaField(forms.CharField): default_error_messages = { 'captcha_invalid': _(u'Invalid captcha') } def __init__(self, *args, **kwargs): self.widget = ReCaptcha self.required = True super(ReCaptchaField, self).__init__(*args, **kwargs) def clean(self, values): super(ReCaptchaField, self).clean(values[1]) recaptcha_challenge_value = smart_unicode(values[0]) recaptcha_response_value = smart_unicode(values[1]) check_captcha = captcha.submit(recaptcha_challenge_value, recaptcha_response_value, settings.RECAPTCHA_PRIVATE_KEY, {}) if not check_captcha.is_valid: raise forms.util.ValidationError(self.error_messages['captcha_invalid']) return values[0] ?这样便可以在app中使用了,具体参考http://www.rkblog.rk.edu.pl/w/p/recaptach-django-forms/