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/* Copyright 2021 Dominik George <dominik.george@teckids.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

use crate::config::get_config;
use config::Config;

use crate::logging::setup_log;

use libnss::passwd::{PasswdHooks, Passwd};

fn nss_hook_prepare() -> Config {
    let conf = get_config(None);

    let mut log_level = log::LevelFilter::Error;
    if conf.get_bool("debug").unwrap_or_default() || conf.get_bool("nss.debug").unwrap_or_default() {
        log_level = log::LevelFilter::Debug;
    }
    setup_log(log_level);

    return conf;
}

struct OidcPasswd;

impl PasswdHooks for OidcPasswd {
    fn get_all_entries() -> Vec<Passwd> {
        vec![
            Passwd {
                name: "test".to_string(),
                passwd: "x".to_string(),
                uid: 1005,
                gid: 1005,
                gecos: "Test Account".to_string(),
                dir: "/home/test".to_string(),
                shell: "/bin/bash".to_string(),
            }
        ]
    }

    fn get_entry_by_uid(uid: libc::uid_t) -> Option<Passwd> {
        if uid == 1005 {
            return Some(Passwd {
                name: "test".to_string(),
                passwd: "x".to_string(),
                uid: 1005,
                gid: 1005,
                gecos: "Test Account".to_string(),
                dir: "/home/test".to_string(),
                shell: "/bin/bash".to_string(),
            });
        }

        None
    }

    fn get_entry_by_name(name: String) -> Option<Passwd> {
        if name == "test" {
            return Some(Passwd {
                name: "test".to_string(),
                passwd: "x".to_string(),
                uid: 1005,
                gid: 1005,
                gecos: "Test Account".to_string(),
                dir: "/home/test".to_string(),
                shell: "/bin/bash".to_string(),
            });
        }

        None
    }
}

libnss_passwd_hooks!(oidc, OidcPasswd);