authz.py :  » Build » Buildbot » buildbot-0.8.0 » buildbot » status » web » Python Open Source

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Python Open Source » Build » Buildbot 
Buildbot » buildbot 0.8.0 » buildbot » status » web » authz.py
from buildbot.status.web.auth import IAuth

class Authz(object):
    """Decide who can do what."""

    knownActions = [
    # If you add a new action here, be sure to also update the documentation
    # at docs/cfg-statustargets.texinfo
            'gracefulShutdown',
            'forceBuild',
            'forceAllBuilds',
            'pingBuilder',
            'stopBuild',
            'stopAllBuilds',
            'cancelPendingBuild',
    ]

    def __init__(self,
            default_action=False,
            auth=None,
            **kwargs):
        self.auth = auth
        if auth:
            assert IAuth.providedBy(auth)

        self.config = dict( (a, default_action) for a in self.knownActions )
        for act in self.knownActions:
            if act in kwargs:
                self.config[act] = kwargs[act]
                del kwargs[act]

        if kwargs:
            raise ValueError("unknown authorization action(s) " + ", ".join(kwargs.keys()))

    def advertiseAction(self, action):
        """Should the web interface even show the form for ACTION?"""
        if action not in self.knownActions:
            raise KeyError("unknown action")
        cfg = self.config.get(action, False)
        if cfg:
            return True
        return False

    def needAuthForm(self, action):
        """Does this action require an authentication form?"""
        if action not in self.knownActions:
            raise KeyError("unknown action")
        cfg = self.config.get(action, False)
        if cfg == 'auth' or callable(cfg):
            return True
        return False

    def actionAllowed(self, action, request, *args):
        """Is this ACTION allowed, given this http REQUEST?"""
        if action not in self.knownActions:
            raise KeyError("unknown action")
        cfg = self.config.get(action, False)
        if cfg:
            if cfg == 'auth' or callable(cfg):
                if not self.auth:
                    return False
                user = request.args.get("username", ["<unknown>"])[0]
                passwd = request.args.get("passwd", ["<no-password>"])[0]
                if user == "<unknown>" or passwd == "<no-password>":
                    return False
                if self.auth.authenticate(user, passwd):
                    if callable(cfg) and not cfg(user, *args):
                        return False
                    return True
                return False
            else:
                return True # anyone can do this..
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