checkers.py 文件源码

def requestAvatarId(self, credentials):
        if pwd:
            try:
                cryptedPass = pwd.getpwnam(credentials.username)[1]
            except KeyError:
                return defer.fail(UnauthorizedLogin())
            else:
                if cryptedPass not in ['*', 'x'] and \
                    verifyCryptedPassword(cryptedPass, credentials.password):
                    return defer.succeed(credentials.username)
        if shadow:
            gid = os.getegid()
            uid = os.geteuid()
            os.setegid(0)
            os.seteuid(0)
            try:
                shadowPass = shadow.getspnam(credentials.username)[1]
            except KeyError:
                os.setegid(gid)
                os.seteuid(uid)
                return defer.fail(UnauthorizedLogin())
            os.setegid(gid)
            os.seteuid(uid)
            if verifyCryptedPassword(shadowPass, credentials.password):
                return defer.succeed(credentials.username)
            return defer.fail(UnauthorizedLogin())

        return defer.fail(UnauthorizedLogin())