One Identity Safeguard for Privileged Sessions 6.9.4 - Creating custom Credential Store plugins

The following example shows a simple plugin that can return both passwords and private keys based on usernames:

class Plugin(object):
    passdb = {
        "user": ["password"],
    }
    privkeydb = {
        "user1": [('ssh-rsa', """
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
""")],
    }
    def get_private_key_list(self, session_id, cookie, protocol, client_ip,
                            gateway_username, gateway_password,
                            target_username, target_host, target_port,
                            target_domain=None, gateway_domain=None, 
                            gateway_groups=None):
        keylist = []
        if target_username in self.privkeydb:
            keylist = self.privkeydb[target_username]
            print "Retrieved private keys;"
            print keylist
        else:
            print "User not found;"
        return {
            "private_keys": keylist,
        }
    def get_password_list(self, session_id, cookie, protocol, client_ip,
                        gateway_username, gateway_password,
                        target_username, target_host, target_port,
                        target_domain=None, gateway_domain=None
                        gateway_groups=None):
        pwlist = []
        if target_username in self.passdb:
            pwlist = self.passdb[target_username]
            print "Retrieved passwords;"
        else:
            print "User not found;"
        return {
            "passwords": pwlist,
        }
    def authentication_completed(self, session_id, cookie):
        return None
        def session_ended(self, session_id, cookie):
            return None

The following example demonstrates how the predefined hooks can be enhanced with additional logic:

import inspect

class Plugin(object):
    passdb = {
        "joe": ["joespw1", "joespw2", ],
        "jack": ["jackspw", ],
    }

    def get_password_list(self, session_id, cookie, protocol, client_ip,
                        gateway_username, gateway_password,
                        target_username, target_host, target_port,
                        target_domain=None, gateway_domain=None, gateway_groups=None):

        # Discard "None" parameters, log all other returned parameters
        args = list(inspect.getargvalues(inspect.currentframe()).args)
        logkws = ["{arg}='{value}'".format(arg=arg, value=locals()[arg])
        for arg in args if arg != 'self' and locals()[arg] is not None]

        if "call_count" in cookie:
            call_count = cookie["call_count"]
        else:
            call_count = 0

        logkws.append("call_count='{0}'".format(call_count))

        print ("Retrieving passwords, non-null parameters follow; " + ', '.join(logkws))

        # Return the password list for the user
        pwlist = []
        if target_username in self.passdb:
            pwlist = self.passdb[target_username]
            print "Retrieved passwords;"
        else:
            print "User not found;"

        return {
            "passwords": pwlist,
            "cookie": {"call_count": call_count + 1}
        }

    def authentication_completed(self, session_id, cookie):
        call_count = cookie["call_count"] if "call_count" in cookie else None
        print ("Received notification about completed authentication; "
            "call_count='{call_count}'").format(call_count=call_count)
        return None

    def session_ended(self, session_id, cookie):
        call_count = cookie["call_count"] if "call_count" in cookie else None
        print ("Received notification about session end; "
            "call_count='{call_count}'").format(call_count=call_count)
        return None