这两天为用bottle+mongodb写的一个项目加上登录功能,无奈怎么都获取不到保存的cookie,文档给出让我们这样操作cookie的代码片段:
@route('/login')def login (): username = request .forms .get('username ') password = request .forms .get('password ') if check_user_credentials(username, password): response .set_cookie(account, username, secret= 'some-secret-key') return welcome %s!you are now logged in. % username else : return login failed. @route('/restricted')def restricted_area (): username = request .get_cookie(account, secret= 'some-secret-key') if username: return hello %s.welcome back. % username
虽然文档上没有但是还有一种操作cookie的方式:
from bottle import request, response@route('/login', method=post)def login(): user = request.post['user'] passwd = request.post['passwd'] if check_user_right(user,passwd): response.cookies['account'] = user else: pass@route('/admin')def admin(): user = request.cookies['user'] if user: pass
但是无论我用哪种方式操作我都无法获取cookie,为什么呢.百思不得其解.但是我的一个处理文章点击率的提醒了我,代码如下:
@route('/archrives/:aid#\d+#')def article_show(aid): db = dbconn.conndb() artid = int(aid) # 获取客户端ip remoteip = request.environ.get('remote_addr') artcookie = remoteip+'ip'+aid print request.cookies.keys() # 判断cookie是否存在 if artcookie in request.cookies.keys(): # 存在则更新有效时间 response.cookies[artcookie] = true response.cookies[artcookie]['max-age'] = 500 else: # 不存在则更新文章查看次数 db.posts.update({id:artid}, {$inc:{views:1}}) # 并设置cookie response.cookies[artcookie] = true response.cookies[artcookie]['max-age'] = 500 template['posts'] = getartlist({id:artid}) template.update(settempvar()) return template('article.html', template)
这里是可以正常获取到cookie的,而且代码没有任何区别.唯一的区别就是用户认证是跳转了页面.所以我help了一下:
from bottle import responsehelp(response.set_cookie)
help的结果其中有两个参数一个是path,和domain:
:param domain: the domain that is allowed to read the cookie. (default: current domain) :param path: limits the cookie to a given path (default: current path)
明显bottle的cookie默认只在当前路径下能读取的到,所以要别的页面读取到cookie我们的代码须改成如下:
from bottle import request, response@route('/login', method=post)def login(): user = request.post['user'] passwd = request.post['passwd'] if check_user_right(user,passwd): response.cookies['account'] = user response.cookies['account']['path'] = '/admin' else: pass@route('/admin')def admin(): user = request.cookies['user']
这样我们就能在别的路径下访问我们设定的cookie.