python - 我的代码有什么问题？ WSGI、烧杯、 python 、apache2

Question

我正在使用 apache2、python26，或多或少最新版本的 beaker，mod_wsgi

这是我的代码，我从 http://beaker.groovie.org/sessions.html#using 得到的

from beaker.middleware import SessionMiddleware

def simple_app(environ, start_response):
    # Get the session object from the environ
    session = environ['beaker.session']

    # Check to see if a value is in the session
    if 'logged_in' in session:
        user = True
    else:
        user = False

    # Set some other session variable
    session['user_id'] = 10

    start_response('200 OK', [('Content-type', 'text/plain')])
    return ['User is logged in: %s' % user]

# Configure the SessionMiddleware
session_opts = {
    'session.type': 'file',
    'session.cookie_expires': True,
}
wsgi_app = SessionMiddleware(simple_app, session_opts)

当我转到 localhost/beaker2.wsgi 时，这工作正常。当我尝试两项更改时，网站失败了:

1.添加

session.save()

或

2。改变

'session.type': 'cookie',

为什么我在添加 session.save() 或将 session.type 更改为 cookie 时会出错？

完整引用:对不起日期和一切，用 tail -f 做的

这是针对 session.save() 错误的:

[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1] mod_wsgi (pid=25311): Exception occurred processing WSGI script '/home/yizi/apache2/www/beaker2.wsgi'.
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1] Traceback (most recent call last):
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/middleware.py", line 152, in __call__
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]     return self.wrap_app(environ, session_start_response)
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]   File "/home/yizi/apache2/www/beaker2.wsgi", line 21, in simple_app
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]     start_response('200 OK', [('Content-type', 'text/html')])
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/middleware.py", line 146, in session_start_response
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]     session.persist()
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/session.py", line 609, in persist
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]     self._session().save()
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/session.py", line 275, in save
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]     **self.namespace_args)
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/container.py", line 518, in __init__
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1]     raise MissingCacheParameter("data_dir or file_dir is required")
[Sun May 01 04:35:55 2011] [error] [client 127.0.0.1] MissingCacheParameter: data_dir or file_dir is required

这是 cookie 错误:

[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1] mod_wsgi (pid=25312): Exception occurred processing WSGI script '/home/yizi/apache2/www/beaker2.wsgi'.
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1] Traceback (most recent call last):
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/middleware.py", line 152, in __call__
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]     return self.wrap_app(environ, session_start_response)
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]   File "/home/yizi/apache2/www/beaker2.wsgi", line 10, in simple_app
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]     if 'logged_in' in session:
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/session.py", line 579, in __contains__
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]     return self._session().has_key(key)
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/session.py", line 547, in _session
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]     self.__dict__['_sess'] = CookieSession(req, **params)
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]   File "/usr/local/lib/python2.6/dist-packages/Beaker-1.5.4-py2.6.egg/beaker/session.py", line 373, in __init__
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1]     raise BeakerException("No validate_key specified for Cookie only "
[Sun May 01 04:53:18 2011] [error] [client 127.0.0.1] BeakerException: No validate_key specified for Cookie only Session.

Answer 1

对于 session.save() 错误，它表示您没有通过设置 data_dir session 缓存参数告诉它保存位置

对于cookie的错误，需要设置一个秘钥validate_key，这样cookie发送到浏览器的时候就可以进行编码，从浏览器获取cookie的时候就可以进行解码和认证

所以要解决这些问题，请使用您自己的值添加这些键:

对于文件:

session_opts['data_dir'] = "/some/place/to/save/"

对于 cookie:

session_opts['validate_key'] = "some secret value"
session_opts['encrypt_key'] = "some other value"