python - Issue with redirect urls when using Federated Login with AppEngine

Question

I'm trying to use OpenID with AppEngine, and I've setup a simple /_ah/login page for signing in with Google.

But it seems when I use users.create_login_url(dest_url='/some/page?foo=bar&fizz=buzz'), which returns:

https://myapp.appspot.com/_ah/login_redir?claimid=https://www.google.com/accounts/o8/id&continue=https://myapp.appspot.com/some/page?foo=bar&fizz=buzz

when eventually I'm redirected to the dest_url, the second parameter (fizz=buzz) is missing.

Is this a bug/limitation on create_login_url()?

Answer 1

是的。这是联合登录中的一个错误。在此报告：https ://code.google.com/p/googleappengine/issues/detail?id=3249

解决方法：转义 & 符号两次

& -> %26 -> %2526

url ='/some/page?foo=bar&fizz=buzz'
import urllib    
url = urllib.quote(urllib.quote(url_re))
users.create_login_url(dest_url=url)

或替换&为%2526.