main.rs 14.1 KB
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#![cfg_attr(feature = "strict", deny(warnings))]

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#[macro_use]
extern crate iron;
#[macro_use]
extern crate router;
#[macro_use]
extern crate serde_derive;

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extern crate handlebars_iron;
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extern crate iron_sessionstorage;
extern crate mount;
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extern crate params;
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extern crate persistent;
extern crate rand;
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extern crate reqwest;
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extern crate rusqlite;
extern crate serde_json;
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extern crate serde_yaml;
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extern crate staticfile;
extern crate structopt;
extern crate time;
extern crate urlencoded;
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use rusqlite::Connection;

mod db_apply_migrations;
mod db_conn;
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mod db_conn_sqlite;
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mod db_conn_postgres;
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mod db_objects;

use db_conn::{MedalConnection, MedalObject};
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use functions::SetPassword; // TODO: Refactor, so we don't need to take this from there!
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use db_objects::*;

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mod configreader_yaml;
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mod webfw_iron;
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use webfw_iron::start_server;

mod functions;

use std::fs;
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use std::path;
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use std::path::{Path, PathBuf};
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use structopt::StructOpt;

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mod oauth_provider;

#[derive(Serialize, Deserialize, Clone, Default, Debug)]
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pub struct Config {
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    host: Option<String>,
    port: Option<u16>,
    self_url: Option<String>,
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    oauth_providers: Option<Vec<oauth_provider::OauthProvider>>,
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    database_file: Option<PathBuf>,
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    template: Option<String>,
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    no_contest_scan: Option<bool>,
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}

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fn read_config_from_file(file: &Path) -> Config {
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    use std::io::Read;
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    println!("Reading configuration file '{}'", file.to_str().unwrap_or("<Encoding error>"));
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    let mut config: Config = if let Ok(mut file) = fs::File::open(file) {
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        let mut contents = String::new();
        file.read_to_string(&mut contents).unwrap();
        serde_json::from_str(&contents).unwrap()
    } else {
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        println!("Configuration file '{}' not found.", file.to_str().unwrap_or("<Encoding error>"));
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        Default::default()
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    };

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    if let Some(ref oap) = config.oauth_providers {
        println!("OAuth providers:");
        for oap in oap {
            println!("  * {}", oap.provider_id);
        }
    }

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    if config.host.is_none() {
        config.host = Some("[::]".to_string())
    }
    if config.port.is_none() {
        config.port = Some(8080)
    }
    if config.self_url.is_none() {
        config.self_url = Some("http://localhost:8080".to_string())
    }
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    if config.template.is_none() {
        config.template = Some("default".to_string())
    }
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    if config.no_contest_scan.is_none() {
        config.no_contest_scan = Some(false)
    }
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    println!("OAuth providers will be told to redirect to {}", config.self_url.as_ref().unwrap());
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    config
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}
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#[derive(StructOpt, Debug)]
#[structopt()]
struct Opt {
    /// Config file to use (default: 'config.json')
    #[structopt(short = "c", long = "config", default_value = "config.json", parse(from_os_str))]
    configfile: PathBuf,

    /// Database file to use (default: from config file or 'medal.db')
    #[structopt(short = "d", long = "database", parse(from_os_str))]
    databasefile: Option<PathBuf>,
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    /// Port to listen on (default: from config file or 8080)
    #[structopt(short = "p", long = "port")]
    port: Option<u16>,
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    /// Reset password of admin user (user_id=1)
    #[structopt(short = "a", long = "reset-admin-pw")]
    resetadminpw: bool,
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    /// Run medal without scanning for contests
    #[structopt(short = "S", long = "no-contest-scan")]
    nocontestscan: bool,

    /// Scan for contests without starting medal
    #[structopt(short = "s", long = "only-contest-scan")]
    onlycontestscan: bool,
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}

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fn read_contest(p: &path::PathBuf) -> Option<Contest> {
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    use std::fs::File;
    use std::io::Read;
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    let mut file = File::open(p).unwrap();
    let mut contents = String::new();
    file.read_to_string(&mut contents).unwrap();
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    configreader_yaml::parse_yaml(&contents,
                                  p.file_name().to_owned()?.to_str()?,
                                  &format!("{}/", p.parent().unwrap().to_str()?))
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}

fn get_all_contest_info(task_dir: &str) -> Vec<Contest> {
    fn walk_me_recursively(p: &path::PathBuf, contests: &mut Vec<Contest>) {
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        if let Ok(paths) = fs::read_dir(p) {
            for path in paths {
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                let p = path.unwrap().path();
                walk_me_recursively(&p, contests);
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            }
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        }
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        if p.file_name().unwrap().to_string_lossy().to_string().ends_with(".yaml") {
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            read_contest(p).map(|contest| contests.push(contest));
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        };
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    };

    let mut contests = Vec::new();
    match fs::read_dir(task_dir) {
        Err(why) => println!("Error opening tasks directory! {:?}", why.kind()),
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        Ok(paths) => {
            for path in paths {
                walk_me_recursively(&path.unwrap().path(), &mut contests);
            }
        }
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    };

    contests
}

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fn refresh_all_contests(conn: &mut Connection) {
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    let v = get_all_contest_info("tasks/");

    for mut contest_info in v {
        contest_info.save(conn);
    }
}

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fn add_admin_user(conn: &mut Connection, resetpw: bool) {
    let mut admin = match conn.get_user_by_id(1) {
        None => {
            print!("New Database. Creating new admin user with credentials 'admin':");
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            conn.new_session("")
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        }
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        Some(user) => {
            if !resetpw {
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                return;
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            }
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            print!("Request to reset admin password. Set credentials 'admin':");
            user
        }
    };

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    use rand::{distributions::Alphanumeric, thread_rng, Rng};
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    let password: String = thread_rng().sample_iter(&Alphanumeric)
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                                       .filter(|x| {
                                           let x = *x;
                                           !(x == 'l' || x == 'I' || x == '1' || x == 'O' || x == 'o' || x == '0')
                                       })
                                       .take(8)
                                       .collect();
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    print!("'{}' …", &password);

    admin.username = Some("admin".into());
    match admin.set_password(&password) {
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        None => println!(" FAILED! (Password hashing error)"),
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        _ => {
            conn.save_session(admin);
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            println!(" Done");
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        }
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    }
}

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fn main() {
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    let opt = Opt::from_args();
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    //println!("{:?}", opt); // Show in different debug level?
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    let mut config = read_config_from_file(&opt.configfile);

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    if opt.databasefile.is_some() {
        config.database_file = opt.databasefile;
    }
    if opt.port.is_some() {
        config.port = opt.port;
    }
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    if opt.nocontestscan {
        config.no_contest_scan = Some(true);
    }
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    let mut conn = match config.database_file {
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        Some(ref path) => {
            println!("Using database file {}", &path.to_str().unwrap_or("<unprintable filename>"));
            Connection::create(path)
        }
        None => {
            println!("Using default database file ./medal.db");
            Connection::create(&Path::new("medal.db"))
        }
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    };
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    println!("connected!");
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    println!("applying migrations …");
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    db_apply_migrations::test(&mut conn);

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    if opt.onlycontestscan || config.no_contest_scan == Some(false) {
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        println!("scanning for contests …");
        refresh_all_contests(&mut conn);
        println!("finished")
    }
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    if !opt.onlycontestscan {
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        add_admin_user(&mut conn, opt.resetadminpw);
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        match start_server(conn, config) {
            Ok(_) => println!("Server started"),
            Err(_) => println!("Error on server start …"),
        };
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        println!("Could not run server. Is the port already in use?");
    }
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}
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#[cfg(test)]
mod tests {
    use super::*;
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    use std::io::Read;
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    fn start_server_and_fn<F>(port: u16, set_user: Option<(String, String)>, f: F)
        where F: FnOnce() {
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        use std::sync::mpsc::channel;
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        use std::{thread, time};
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        let (start_tx, start_rx) = channel();
        let (stop_tx, stop_rx) = channel();

        thread::spawn(move || {
            let mut conn = Connection::open_in_memory().unwrap();
            db_apply_migrations::test(&mut conn);

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            if let Some(user) = set_user {
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                let mut test_user = conn.new_session("");
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                test_user.username = Some(user.0);
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                match test_user.set_password(&user.1) {
                    None => panic!("Set Password did not work correctly.)"),
                    _ => conn.save_session(test_user),
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                }
            }

            let mut config = read_config_from_file(Path::new("thisfileshoudnotexist"));
            config.port = Some(port);
            let srvr = start_server(conn, config);

            start_tx.send(()).unwrap();

            stop_rx.recv().unwrap();

            srvr.unwrap().close().unwrap();
        });

        // wait for server to start:
        start_rx.recv().unwrap();
        thread::sleep(time::Duration::from_millis(100));
        f();
        stop_tx.send(()).unwrap();
    }

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    fn login_for_tests(port: u16, client: &reqwest::Client, username: &str, password: &str) -> reqwest::Response {
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        let params = [("username", username), ("password", password)];
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        let resp = client.post(&format!("http://localhost:{}/login", port)).form(&params).send().unwrap();
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        resp
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    }

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    fn check_status(resp: &reqwest::Response, expected_status: reqwest::StatusCode) {
        let status = resp.status();
        if status != &expected_status {
            panic!("Status is not (as expexted) {}. Status: {}", expected_status, status)
        };
    }

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    #[test]
    fn start_server_and_check_request() {
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        start_server_and_fn(8080, None, || {
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            let mut resp = reqwest::get("http://localhost:8080").unwrap();
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            check_status(&resp, reqwest::StatusCode::Ok);
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            let mut content = String::new();
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            resp.read_to_string(&mut content).unwrap();
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            assert!(content.contains("Jugendwettbewerb Informatik</h1>"));
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            assert!(!content.contains("Error"));

            let mut resp = reqwest::get("http://localhost:8080/contest").unwrap();
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            check_status(&resp, reqwest::StatusCode::Ok);
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            let mut content = String::new();
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            resp.read_to_string(&mut content).unwrap();
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            assert!(content.contains("<h1>Wettbewerbe</h1>"));
            assert!(!content.contains("Error"));
        })
    }
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    #[test]
    fn check_login_wrong_credentials() {
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        start_server_and_fn(8081, None, || {
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            let client = reqwest::Client::new().unwrap();
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            let mut resp = login_for_tests(8081, &client, "nonexistingusername", "wrongpassword");
            check_status(&resp, reqwest::StatusCode::Ok);
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            let mut content = String::new();
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            resp.read_to_string(&mut content).unwrap();
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            assert!(content.contains("<h1>Login</h1>"));
            assert!(content.contains("Login fehlgeschlagen."));
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            assert!(!content.contains("Error"));
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        })
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    }
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    #[test]
    fn start_server_and_check_login() {
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        start_server_and_fn(8082, Some(("testusr".to_string(), "testpw".to_string())), || {
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            let mut client = reqwest::Client::new().unwrap();
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            client.redirect(reqwest::RedirectPolicy::custom(|attempt| attempt.stop()));
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            let mut resp = login_for_tests(8082, &client, "testusr", "testpw");
            check_status(&resp, reqwest::StatusCode::Found);

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            let mut content = String::new();
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            resp.read_to_string(&mut content).unwrap();
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            assert!(!content.contains("Error"));

            let header = resp.headers();
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            let set_cookie = header.get::<reqwest::header::SetCookie>();
            match set_cookie {
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                None => panic!("No setCookie."),
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                Some(cookie) => {
                    if cookie.len() == 1 {
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                        let new_cookie = reqwest::header::Cookie(cookie.to_vec());
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                        let mut new_resp = client.get("http://localhost:8082").header(new_cookie).send().unwrap();
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                        check_status(&new_resp, reqwest::StatusCode::Ok);

                        let mut new_content = String::new();
                        new_resp.read_to_string(&mut new_content).unwrap();
                        assert!(!content.contains("Error"));
                        assert!(new_content.contains("Eingeloggt als <em>testusr</em>"));
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                        assert!(new_content.contains("Jugendwettbewerb Informatik</h1>"));
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                    } else {
                        panic!("More than one setCookie.");
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                    }
                }
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            };
        })
    }

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    #[test]
    fn start_server_and_check_logout() {
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        start_server_and_fn(8083, Some(("testusr".to_string(), "testpw".to_string())), || {
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            let mut client = reqwest::Client::new().unwrap();
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            client.redirect(reqwest::RedirectPolicy::custom(|attempt| attempt.stop()));
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            let resp = login_for_tests(8083, &client, "testusr", "testpw");
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            check_status(&resp, reqwest::StatusCode::Found);
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            let header = resp.headers();
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            let set_cookie = header.get::<reqwest::header::SetCookie>();
            match set_cookie {
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                None => panic!("No setCookie."),
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                Some(cookie) => {
                    if cookie.len() == 1 {
                        let new_cookie = reqwest::header::Cookie(cookie.to_vec());
                        let mut new_resp =
                            client.get("http://localhost:8082/logout").header(new_cookie.clone()).send().unwrap();
                        check_status(&new_resp, reqwest::StatusCode::Found);
                        new_resp = client.get("http://localhost:8082").header(new_cookie).send().unwrap();
                        check_status(&new_resp, reqwest::StatusCode::Ok);

                        let mut new_content = String::new();
                        new_resp.read_to_string(&mut new_content).unwrap();
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                        assert!(new_content.contains("Benutzername"));
                        assert!(new_content.contains("Passwort"));
                        assert!(new_content.contains("Gruppencode / Teilnahmecode"));
                        assert!(new_content.contains("Jugendwettbewerb Informatik</h1>"));
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                    } else {
                        panic!("More than one setCookie.");
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                    }
                }
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            };
        })
    }

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}