[Kimchi-devel] [PATCH 1/2] authorization: Update /login to return user roles instead of sudo parameter

Wen Wang wenwang at linux.vnet.ibm.com
Fri Jul 11 11:40:26 UTC 2014


The login pattern has been changed to the traditional login page which 
the "username" and the "password" will be  submitted using form. However 
the "/login" api is used in the login_window pattern that we no longer 
use. When using the "/login", browser get a "303" and redirect the page 
to |https://9.123.141.135:8001/#tabs/guests.

from my point of view, I suppose we build another API that supplies the 
"GET" method for the browser to get the username and role. Or else pass 
the "username" and "role" through xml to have it stored into 
sessionstorage or cookie.

For the roles, I recommend we have at least four for this release: 
*admin*, *by-instance*, *read-only*, *none*. It's the by-instance mode I 
have to explain.

from the diagram, tab mode is used for xml transfering which tab is 
going to be displayed by user role. Take "Guest" tab for example, not 
only do we need to show the tab, but also we need to know the user's 
role so that we can display the proper vms. Different users need 
different privilege for action. admin has full access, guest might be 
divided into two roles: one is common users we give the user the ability 
to start/stop/delete the vms that belongs to him, the other one might be 
admin-user who is able to have the whole access to the action tab. To 
clarify that, we need the by-instance tab. and the sub-tab.

Waiting for your comments

Best Regards

Wang Wen

|On 7/11/2014 10:16 AM, alinefm at linux.vnet.ibm.com wrote:
> From: Aline Manera <alinefm at linux.vnet.ibm.com>
>
> For now, Kimchi just supports 2 types of user roles: 'admin' - user has
> full control of Kimchi features and 'user' with limited access. But in
> future the idea is to have more and more roles so it is good to
> already provide the authorization support with that in mind.
> That way, instead of only returning if user has or not sudo permissions, the
> /login API will return the user roles.
> If the user has sudo permissions he/she will have 'admin' role,
> otherwise, 'user' role.
>
> curl -H "Content-Type: application/json" -H "Accept: application/json"
>    http://localhost:8010/login
>    -d'{"username": "guest", "password": "guest-passwd"}' -X POST
>
> {"username": "guest", "roles": ["user"], "groups": []}
>
> curl -H "Content-Type: application/json" -H "Accept: application/json"
>    http://localhost:8010/login
>    -d'{"username": "sysadmin", "password": "sysadmin-passwd"}' -X POST
>
> {"username": "sysadmin", "roles": ["admin"], "groups": []}
>
> Signed-off-by: Aline Manera <alinefm at linux.vnet.ibm.com>
> ---
>   src/kimchi/auth.py | 12 ++++++++----
>   tests/test_rest.py |  6 ++++++
>   tests/utils.py     |  6 +++---
>   3 files changed, 17 insertions(+), 7 deletions(-)
>
> diff --git a/src/kimchi/auth.py b/src/kimchi/auth.py
> index 6a4a610..b1febf0 100644
> --- a/src/kimchi/auth.py
> +++ b/src/kimchi/auth.py
> @@ -38,6 +38,7 @@
>   USER_NAME = 'username'
>   USER_GROUPS = 'groups'
>   USER_SUDO = 'sudo'
> +USER_ROLES = 'roles'
>   REFRESH = 'robot-refresh'
>
>
> @@ -62,7 +63,7 @@ def __init__(self, username):
>           self.user = {}
>           self.user[USER_NAME] = username
>           self.user[USER_GROUPS] = None
> -        self.user[USER_SUDO] = False
> +        self.user[USER_ROLES] = ['user']
>
>       def get_groups(self):
>           self.user[USER_GROUPS] = [g.gr_name for g in grp.getgrall()
> @@ -74,10 +75,13 @@ def has_sudo(self):
>           p = multiprocessing.Process(target=self._has_sudo, args=(result,))
>           p.start()
>           p.join()
> -        self.user[USER_SUDO] = bool(result.value)
> -        return self.user[USER_SUDO]
> +        if result.value:
> +            self.user[USER_ROLES] = ['admin']
> +        return result.value
>
>       def _has_sudo(self, result):
> +        result.value = False
> +
>           _master, slave = pty.openpty()
>           os.setsid()
>           fcntl.ioctl(slave, termios.TIOCSCTTY, 0)
> @@ -94,7 +98,7 @@ def _has_sudo(self, result):
>                                             self.user[USER_NAME]])
>               for line in out.split('\n'):
>                   if line and re.search("(ALL)", line):
> -                    result.value = 1
> +                    result.value = True
>                       debug("User %s can run any command with sudo" %
>                             result.value)
>                       return
> diff --git a/tests/test_rest.py b/tests/test_rest.py
> index ad8fc72..ba9431d 100644
> --- a/tests/test_rest.py
> +++ b/tests/test_rest.py
> @@ -1552,6 +1552,12 @@ def test_auth_session(self):
>           req = json.dumps({'username': user, 'password': pw})
>           resp = self.request('/login', req, 'POST', hdrs)
>           self.assertEquals(200, resp.status)
> +
> +        user_info = json.loads(resp.read())
> +        self.assertEquals(sorted(user_info.keys()),
> +                          ['groups', 'roles', 'username'])
> +        self.assertEquals(user_info['roles'], [u'admin'])
> +
>           cookie = resp.getheader('set-cookie')
>           hdrs['Cookie'] = cookie
>
> diff --git a/tests/utils.py b/tests/utils.py
> index fd9b23c..4853b7a 100644
> --- a/tests/utils.py
> +++ b/tests/utils.py
> @@ -157,8 +157,8 @@ def patch_auth(sudo=True):
>       def _get_groups(self):
>           return None
>
> -    def _has_sudo(self):
> -        return sudo
> +    def _has_sudo(self, result):
> +        result.value = sudo
>
>       def _authenticate(username, password, service="passwd"):
>           try:
> @@ -170,7 +170,7 @@ def _authenticate(username, password, service="passwd"):
>       import kimchi.auth
>       kimchi.auth.authenticate = _authenticate
>       kimchi.auth.User.get_groups = _get_groups
> -    kimchi.auth.User.has_sudo = _has_sudo
> +    kimchi.auth.User._has_sudo = _has_sudo
>
>
>   def normalize_xml(xml_str):

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