加密URL中的信息，如登录凭据。如果要向用户发送一个链接，该链接可登录用户而不泄漏其登录凭据，则会很有用。
django-urlcrypt的Python项目详细描述
django urlcrypt加密url中的信息，例如登录凭据。
例如，假设我有如下的url模式：
urlpatterns = patterns('',
url(r'^inbox/$', 'message_inbox', name='message_inbox'),
(r'^r/', include('urlcrypt.urls')),
)
我可以使用django urlcrypt为用户生成一个url，它看起来像：
http://www.mydomain.com/r/TkNJBkNFAghDWkdFGPUAQEfcDUJfEBIREgEUFl1BQ18IQkdDUUcPSh4ADAYAWhYKHh8KHBsHEw
并将自动登录该用户并将其重定向到/inbox/。
安装
easy_install django-urlcrypt或pip install django-urlcrypt
将urlcrypt添加到INSTALLED_APPS
在settings.py中，将'urlcrypt.auth_backends.UrlCryptBackend'添加到AUTHENTICATION_BACKENDS
在url.py中添加：
(r'^r/', include('urlcrypt.urls')),（推荐）如果您希望在令牌上使用rsa加密，请使用ssh-keygen-t rsa -f <path to private key>生成一个私钥（如果您还没有），然后将私钥的路径设置为urlcrypt_private_key_path。rsa加密使令牌更长，但更安全。需要pycrypto库。
用法
在视图中：
from django.core.urlresolvers import reverse
from urlcrypt import lib as urlcrypt
token = urlcrypt.generate_login_token(user, reverse('message_inbox'))
encoded_url = reverse('urlcrypt_redirect', args=(token,))
# yours will look slightly different because you have a different SECRET_KEY, but approximately
# encoded_url == /r/TkNJBkNFAghDWkdFGPUAQEfcDUJfEBIREgEUFl1BQ18IQkdDUUcPSh4ADAYAWhYKHh8KHBsHEw
在模板中：
{% load urlcrypt_tags %}
<a href="{% encoded_url user message_inbox %}">click me to log in as {{user.username}} and go to {% url message_inbox %}</a>
高级库用法：
from urlcrypt import lib as urlcrypt
message = {
'url': u'/users/following/',
'user_id': '12345'
}
token = urlcrypt.encode_token((message['user_id'], message['url']))
decoded_message = urlcrypt.decode_token(token, ('user_id', 'url', 'timestamp'))
>>> print token
TkNJBkNFAghDWkdFGPUAQEfcDUJfEBIREgEUFl1BQ18IQkdDUUcPSh4ADAYAWhYKHh8KHBsHEw
>>> print decoded_message
{'url': '/users/following/', 'user_id': '12345'}
设置
- ^{tt10}$
- default: ^{tt11}$
- If urlcrypt authentication fails, redirects to ^{tt10}$.
- ^{tt13}$
- default: ^{tt14}$
- The number of urlcrypt requests a unique visitor is allowed to make per minute.
- ^{tt15}$
- default: ^{tt16}$
- The path to the RSA private key file in PEM format. If ^{tt16}$, RSA encryption will not be used.
- ^{tt18}$
- default: ^{tt19}$
- Set ^{tt18}$ to True when running the urlcrypt tests.
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