backend/src/db.rs

   1 use std::{fmt, fs::{self, File}, path::Path, io::Read};
   2
   3 use itertools::Itertools;
   4 use chrono::{prelude::*, Duration};
   5 use rusqlite::{named_params, OptionalExtension, params, Params};
   6 use r2d2::Pool;
   7 use r2d2_sqlite::SqliteConnectionManager;
   8 use rand::distributions::{Alphanumeric, DistString};
   9
  10 use crate::{consts, user};
  11 use crate::hash::{hash, verify_password};
  12 use crate::model;
  13 use crate::user::*;
  14
  15 const CURRENT_DB_VERSION: u32 = 1;
  16
  17 #[derive(Debug)]
  18 pub enum DBError {
  19     SqliteError(rusqlite::Error),
  20     R2d2Error(r2d2::Error),
  21     UnsupportedVersion(u32),
  22     Other(String),
  23 }
  24
  25 impl fmt::Display for DBError {
  26     fn fmt(&self, f: &mut fmt::Formatter) -> std::result::Result<(), fmt::Error> {
  27         write!(f, "{:?}", self)
  28     }
  29 }
  30
  31 impl std::error::Error for DBError { }
  32
  33 impl From<rusqlite::Error> for DBError  {
  34     fn from(error: rusqlite::Error) -> Self {
  35         DBError::SqliteError(error)
  36     }
  37 }
  38
  39 impl From<r2d2::Error> for DBError  {
  40     fn from(error: r2d2::Error) -> Self {
  41         DBError::R2d2Error(error)
  42     }
  43 }
  44
  45 // TODO: Is there a better solution?
  46 impl DBError {
  47     fn from_dyn_error(error: Box<dyn std::error::Error>) -> Self {
  48         DBError::Other(error.to_string())
  49     }
  50 }
  51
  52 type Result<T> = std::result::Result<T, DBError>;
  53
  54 #[derive(Debug)]
  55 pub enum SignUpResult {
  56     UserAlreadyExists,
  57     UserCreatedWaitingForValidation(String), // Validation token.
  58 }
  59
  60 #[derive(Debug)]
  61 pub enum ValidationResult {
  62     UnknownUser,
  63     ValidationExpired,
  64     Ok(String, i32), // Returns token and user id.
  65 }
  66
  67 #[derive(Debug)]
  68 pub enum SignInResult {
  69     UserNotFound,
  70     WrongPassword,
  71     AccountNotValidated,
  72     Ok(String, i32), // Returns token and user id.
  73 }
  74
  75 #[derive(Debug)]
  76 pub enum AuthenticationResult {
  77     NotValidToken,
  78     Ok(i32), // Returns user id.
  79 }
  80
  81 #[derive(Clone)]
  82 pub struct Connection {
  83     //con: rusqlite::Connection
  84     pool: Pool<SqliteConnectionManager>
  85 }
  86
  87 impl Connection {
  88     pub fn new() -> Result<Connection> {
  89         let path = Path::new(consts::DB_DIRECTORY).join(consts::DB_FILENAME);
  90         Self::new_from_file(path)
  91     }
  92
  93     pub fn new_in_memory() -> Result<Connection> {
  94         Self::create_connection(SqliteConnectionManager::memory())
  95     }
  96
  97     pub fn new_from_file<P: AsRef<Path>>(file: P) -> Result<Connection> {
  98         if let Some(data_dir) = file.as_ref().parent() {
  99             if !data_dir.exists() {
 100                 fs::DirBuilder::new().create(data_dir).unwrap();
 101             }
 102         }
 103
 104         Self::create_connection(SqliteConnectionManager::file(file))
 105     }
 106
 107     fn create_connection(manager: SqliteConnectionManager) -> Result<Connection> {
 108         let pool = r2d2::Pool::new(manager).unwrap();
 109         let connection = Connection { pool };
 110         connection.create_or_update()?;
 111         Ok(connection)
 112     }
 113
 114     /// Called after the connection has been established for creating or updating the database.
 115     /// The 'Version' table tracks the current state of the database.
 116     fn create_or_update(&self) -> Result<()> {
 117         // Check the Database version.
 118         let mut con = self.pool.get()?;
 119         let tx = con.transaction()?;
 120
 121         // Version 0 corresponds to an empty database.
 122         let mut version = {
 123             match tx.query_row(
 124                     "SELECT [name] FROM [sqlite_master] WHERE [type] = 'table' AND [name] = 'Version'",
 125                         [],
 126                         |row| row.get::<usize, String>(0)
 127                     ) {
 128                 Ok(_) => tx.query_row("SELECT [version] FROM [Version] ORDER BY [id] DESC", [], |row| row.get(0)).unwrap_or_default(),
 129                 Err(_) => 0
 130             }
 131         };
 132
 133         while Self::update_to_next_version(version, &tx)? {
 134             version += 1;
 135         }
 136
 137         tx.commit()?;
 138
 139         Ok(())
 140     }
 141
 142     fn update_to_next_version(current_version: u32, tx: &rusqlite::Transaction) -> Result<bool> {
 143         let next_version = current_version + 1;
 144
 145         if next_version <= CURRENT_DB_VERSION {
 146             println!("Update to version {}...", next_version);
 147         }
 148
 149         fn update_version(to_version: u32, tx: &rusqlite::Transaction) -> Result<()> {
 150             tx.execute("INSERT INTO [Version] ([version], [datetime]) VALUES (?1, datetime('now'))", [to_version]).map(|_| ()).map_err(DBError::from)
 151         }
 152
 153         fn ok(updated: bool) -> Result<bool> {
 154             if updated {
 155                 println!("Version updated");
 156             }
 157             Ok(updated)
 158         }
 159
 160         match next_version {
 161             1 => {
 162                 let sql_file = consts::SQL_FILENAME.replace("{VERSION}", &next_version.to_string());
 163                 tx.execute_batch(&load_sql_file(&sql_file)?)?;
 164                 update_version(next_version, tx)?;
 165
 166                 ok(true)
 167             }
 168
 169             // Version 1 doesn't exist yet.
 170             2 =>
 171                 ok(false),
 172
 173             v =>
 174                 Err(DBError::UnsupportedVersion(v)),
 175         }
 176     }
 177
 178     pub fn get_all_recipe_titles(&self) -> Result<Vec<(i32, String)>> {
 179         let con = self.pool.get()?;
 180         let mut stmt = con.prepare("SELECT [id], [title] FROM [Recipe] ORDER BY [title]")?;
 181         let titles =
 182             stmt.query_map([], |row| {
 183                 Ok((row.get(0)?, row.get(1)?))
 184             })?.map(|r| r.unwrap()).collect_vec(); // TODO: remove unwrap.
 185         Ok(titles)
 186     }
 187
 188     /* Not used for the moment.
 189     pub fn get_all_recipes(&self) -> Result<Vec<model::Recipe>> {
 190         let con = self.pool.get()?;
 191         let mut stmt = con.prepare("SELECT [id], [title] FROM [Recipe] ORDER BY [title]")?;
 192         let recipes =
 193             stmt.query_map([], |row| {
 194                 Ok(model::Recipe::new(row.get(0)?, row.get(1)?))
 195             })?.map(|r| r.unwrap()).collect_vec(); // TODO: remove unwrap.
 196         Ok(recipes)
 197     } */
 198
 199     pub fn get_recipe(&self, id: i32) -> Result<model::Recipe> {
 200         let con = self.pool.get()?;
 201         con.query_row("SELECT [id], [title], [description] FROM [Recipe] WHERE [id] = ?1", [id], |row| {
 202             Ok(model::Recipe::new(row.get("id")?, row.get("title")?, row.get("description")?))
 203         }).map_err(DBError::from)
 204     }
 205
 206     pub fn get_user_login_info(&self, token: &str) -> Result<UserLoginInfo> {
 207         let con = self.pool.get()?;
 208         con.query_row("SELECT [last_login_datetime], [ip], [user_agent] FROM [UserLoginToken] WHERE [token] = ?1", [token], |r| {
 209             Ok(UserLoginInfo {
 210                 last_login_datetime: r.get("last_login_datetime")?,
 211                 ip: r.get("ip")?,
 212                 user_agent: r.get("user_agent")?,
 213             })
 214         }).map_err(DBError::from)
 215     }
 216
 217     pub fn load_user(&self, user_id: i32) -> Result<User> {
 218         let con = self.pool.get()?;
 219         con.query_row("SELECT [email] FROM [User] WHERE [id] = ?1", [user_id], |r| {
 220             Ok(User {
 221                 email: r.get("email")?,
 222             })
 223         }).map_err(DBError::from)
 224     }
 225
 226     ///
 227     pub fn sign_up(&self, email: &str, password: &str) -> Result<SignUpResult> {
 228         self.sign_up_with_given_time(email, password, Utc::now())
 229     }
 230
 231     fn sign_up_with_given_time(&self, email: &str, password: &str, datetime: DateTime<Utc>) -> Result<SignUpResult> {
 232         let mut con = self.pool.get()?;
 233         let tx = con.transaction()?;
 234         let token =
 235             match tx.query_row("SELECT [id], [validation_token] FROM [User] WHERE [email] = ?1", [email], |r| {
 236                 Ok((r.get::<&str, i32>("id")?, r.get::<&str, Option<String>>("validation_token")?))
 237             }).optional()? {
 238                 Some((id, validation_token)) => {
 239                     if validation_token.is_none() {
 240                         return Ok(SignUpResult::UserAlreadyExists)
 241                     }
 242                     let token = generate_token();
 243                     let hashed_password = hash(password).map_err(|e| DBError::from_dyn_error(e))?;
 244                     tx.execute("UPDATE [User] SET [validation_token] = ?2, [creation_datetime] = ?3, [password] = ?4 WHERE [id] = ?1", params![id, token, datetime, hashed_password])?;
 245                     token
 246                 },
 247                 None => {
 248                     let token = generate_token();
 249                     let hashed_password = hash(password).map_err(|e| DBError::from_dyn_error(e))?;
 250                     tx.execute("INSERT INTO [User] ([email], [validation_token], [creation_datetime], [password]) VALUES (?1, ?2, ?3, ?4)", params![email, token, datetime, hashed_password])?;
 251                     token
 252                 },
 253             };
 254         tx.commit()?;
 255         Ok(SignUpResult::UserCreatedWaitingForValidation(token))
 256     }
 257
 258     pub fn validation(&self, token: &str, validation_time: Duration, ip: &str, user_agent: &str) -> Result<ValidationResult> {
 259         let mut con = self.pool.get()?;
 260         let tx = con.transaction()?;
 261         let user_id =
 262             match tx.query_row("SELECT [id], [creation_datetime] FROM [User] WHERE [validation_token] = ?1", [token], |r| {
 263                 Ok((r.get::<&str, i32>("id")?, r.get::<&str, DateTime<Utc>>("creation_datetime")?))
 264             }).optional()? {
 265                 Some((id, creation_datetime)) => {
 266                     if Utc::now() - creation_datetime > validation_time {
 267                         return Ok(ValidationResult::ValidationExpired)
 268                     }
 269                     tx.execute("UPDATE [User] SET [validation_token] = NULL WHERE [id] = ?1", [id])?;
 270                     id
 271                 },
 272                 None => {
 273                     return Ok(ValidationResult::UnknownUser)
 274                 },
 275             };
 276         let token = Connection::create_login_token(&tx, user_id, ip, user_agent)?;
 277         tx.commit()?;
 278         Ok(ValidationResult::Ok(token, user_id))
 279     }
 280
 281     pub fn sign_in(&self, email: &str, password: &str, ip: &str, user_agent: &str) -> Result<SignInResult> {
 282         let mut con = self.pool.get()?;
 283         let tx = con.transaction()?;
 284         match tx.query_row("SELECT [id], [password], [validation_token] FROM [User] WHERE [email] = ?1", [email], |r| {
 285             Ok((r.get::<&str, i32>("id")?, r.get::<&str, String>("password")?, r.get::<&str, Option<String>>("validation_token")?))
 286         }).optional()? {
 287             Some((id, stored_password, validation_token)) => {
 288                 if validation_token.is_some() {
 289                     Ok(SignInResult::AccountNotValidated)
 290                 } else if verify_password(password, &stored_password).map_err(DBError::from_dyn_error)? {
 291                     let token = Connection::create_login_token(&tx, id, ip, user_agent)?;
 292                     tx.commit()?;
 293                     Ok(SignInResult::Ok(token, id))
 294                 } else {
 295                     Ok(SignInResult::WrongPassword)
 296                 }
 297             },
 298             None => {
 299                 Ok(SignInResult::UserNotFound)
 300             },
 301         }
 302     }
 303
 304     pub fn authentication(&self, token: &str, ip: &str, user_agent: &str) -> Result<AuthenticationResult> {
 305         let mut con = self.pool.get()?;
 306         let tx = con.transaction()?;
 307         match tx.query_row("SELECT [id], [user_id] FROM [UserLoginToken] WHERE [token] = ?1", [token], |r| {
 308             Ok((r.get::<&str, i32>("id")?, r.get::<&str, i32>("user_id")?))
 309         }).optional()? {
 310             Some((login_id, user_id)) => {
 311                 tx.execute("UPDATE [UserLoginToken] SET [last_login_datetime] = ?2, [ip] = ?3, [user_agent] = ?4 WHERE [id] = ?1", params![login_id, Utc::now(), ip, user_agent])?;
 312                 tx.commit()?;
 313                 Ok(AuthenticationResult::Ok(user_id))
 314             },
 315             None =>
 316                 Ok(AuthenticationResult::NotValidToken)
 317         }
 318     }
 319
 320     pub fn sign_out(&self, token: &str) -> Result<()> {
 321         let mut con = self.pool.get()?;
 322         let tx = con.transaction()?;
 323         match tx.query_row("SELECT [id] FROM [UserLoginToken] WHERE [token] = ?1", [token], |r| {
 324             Ok(r.get::<&str, i32>("id")?)
 325         }).optional()? {
 326             Some(login_id) => {
 327                 tx.execute("DELETE FROM [UserLoginToken] WHERE [id] = ?1", params![login_id])?;
 328                 tx.commit()?
 329             },
 330             None => (),
 331         }
 332         Ok(())
 333     }
 334
 335     /// Execute a given SQL file.
 336     pub fn execute_file<P: AsRef<Path> + fmt::Display>(&self, file: P) -> Result<()> {
 337         let con = self.pool.get()?;
 338         let sql = load_sql_file(file)?;
 339         con.execute_batch(&sql).map_err(DBError::from)
 340     }
 341
 342     /// Execute any SQL statement.
 343     /// Mainly used for testing.
 344     pub fn execute_sql<P: Params>(&self, sql: &str, params: P) -> Result<usize> {
 345         let con = self.pool.get()?;
 346         con.execute(sql, params).map_err(DBError::from)
 347     }
 348
 349     // Return the token.
 350     fn create_login_token(tx: &rusqlite::Transaction, user_id: i32, ip: &str, user_agent: &str) -> Result<String> {
 351         let token = generate_token();
 352         tx.execute("INSERT INTO [UserLoginToken] ([user_id], [last_login_datetime], [token], [ip], [user_agent]) VALUES (?1, ?2, ?3, ?4, ?5)", params![user_id, Utc::now(), token, ip, user_agent])?;
 353         Ok(token)
 354     }
 355 }
 356
 357 fn load_sql_file<P: AsRef<Path> + fmt::Display>(sql_file: P) -> Result<String> {
 358     let mut file = File::open(&sql_file).map_err(|err| DBError::Other(format!("Cannot open SQL file ({}): {}", &sql_file, err.to_string())))?;
 359     let mut sql = String::new();
 360     file.read_to_string(&mut sql).map_err(|err| DBError::Other(format!("Cannot read SQL file ({}) : {}", &sql_file, err.to_string())))?;
 361     Ok(sql)
 362 }
 363
 364 fn generate_token() -> String {
 365     Alphanumeric.sample_string(&mut rand::thread_rng(), 24)
 366 }
 367
 368 #[cfg(test)]
 369 mod tests {
 370     use super::*;
 371
 372     #[test]
 373     fn sign_up() -> Result<()> {
 374         let connection = Connection::new_in_memory()?;
 375         match connection.sign_up("paul@test.org", "12345")? {
 376             SignUpResult::UserCreatedWaitingForValidation(_) => (), // Nominal case.
 377             other => panic!("{:?}", other),
 378         }
 379         Ok(())
 380     }
 381
 382     #[test]
 383     fn sign_up_to_an_already_existing_user() -> Result<()> {
 384         let connection = Connection::new_in_memory()?;
 385         connection.execute_sql("
 386             INSERT INTO [User] ([id], [email], [name], [password], [creation_datetime], [validation_token])
 387                 VALUES (
 388                     1,
 389                     'paul@test.org',
 390                     'paul',
 391                     '$argon2id$v=19$m=4096,t=3,p=1$1vtXcacYjUHZxMrN6b2Xng$wW8Z59MIoMcsIljnjHmxn3EBcc5ymEySZPUVXHlRxcY',
 392                     0,
 393                     NULL
 394                 );", [])?;
 395         match connection.sign_up("paul@test.org", "12345")? {
 396             SignUpResult::UserAlreadyExists => (), // Nominal case.
 397             other => panic!("{:?}", other),
 398         }
 399         Ok(())
 400     }
 401
 402     #[test]
 403     fn sign_up_and_sign_in_without_validation() -> Result<()> {
 404         let connection = Connection::new_in_memory()?;
 405
 406         let email = "paul@test.org";
 407         let password = "12345";
 408
 409         match connection.sign_up(email, password)? {
 410             SignUpResult::UserCreatedWaitingForValidation(_) => (), // Nominal case.
 411             other => panic!("{:?}", other),
 412         }
 413
 414         match connection.sign_in(email, password, "127.0.0.1", "Mozilla/5.0")? {
 415             SignInResult::AccountNotValidated => (), // Nominal case.
 416             other => panic!("{:?}", other),
 417         }
 418
 419         Ok(())
 420     }
 421
 422     #[test]
 423     fn sign_up_to_an_unvalidated_already_existing_user() -> Result<()> {
 424         let connection = Connection::new_in_memory()?;
 425         let token = generate_token();
 426         connection.execute_sql("
 427             INSERT INTO [User] ([id], [email], [name], [password], [creation_datetime], [validation_token])
 428                 VALUES (
 429                     1,
 430                     'paul@test.org',
 431                     'paul',
 432                     '$argon2id$v=19$m=4096,t=3,p=1$1vtXcacYjUHZxMrN6b2Xng$wW8Z59MIoMcsIljnjHmxn3EBcc5ymEySZPUVXHlRxcY',
 433                     0,
 434                     :token
 435                 );", named_params! { ":token": token })?;
 436         match connection.sign_up("paul@test.org", "12345")? {
 437             SignUpResult::UserCreatedWaitingForValidation(_) => (), // Nominal case.
 438             other => panic!("{:?}", other),
 439         }
 440         Ok(())
 441     }
 442
 443     #[test]
 444     fn sign_up_then_send_validation_at_time() -> Result<()> {
 445         let connection = Connection::new_in_memory()?;
 446         let validation_token =
 447             match connection.sign_up("paul@test.org", "12345")? {
 448                 SignUpResult::UserCreatedWaitingForValidation(token) => token, // Nominal case.
 449                 other => panic!("{:?}", other),
 450             };
 451         match connection.validation(&validation_token, Duration::hours(1), "127.0.0.1", "Mozilla/5.0")? {
 452             ValidationResult::Ok(_, _) => (), // Nominal case.
 453             other => panic!("{:?}", other),
 454         }
 455         Ok(())
 456     }
 457
 458     #[test]
 459     fn sign_up_then_send_validation_too_late() -> Result<()> {
 460         let connection = Connection::new_in_memory()?;
 461         let validation_token =
 462             match connection.sign_up_with_given_time("paul@test.org", "12345", Utc::now() - Duration::days(1))? {
 463                 SignUpResult::UserCreatedWaitingForValidation(token) => token, // Nominal case.
 464                 other => panic!("{:?}", other),
 465             };
 466         match connection.validation(&validation_token, Duration::hours(1), "127.0.0.1", "Mozilla/5.0")? {
 467             ValidationResult::ValidationExpired => (), // Nominal case.
 468             other => panic!("{:?}", other),
 469         }
 470         Ok(())
 471     }
 472
 473     #[test]
 474     fn sign_up_then_send_validation_with_bad_token() -> Result<()> {
 475         let connection = Connection::new_in_memory()?;
 476         let _validation_token =
 477             match connection.sign_up("paul@test.org", "12345")? {
 478                 SignUpResult::UserCreatedWaitingForValidation(token) => token, // Nominal case.
 479                 other => panic!("{:?}", other),
 480             };
 481         let random_token = generate_token();
 482         match connection.validation(&random_token, Duration::hours(1), "127.0.0.1", "Mozilla/5.0")? {
 483             ValidationResult::UnknownUser => (), // Nominal case.
 484             other => panic!("{:?}", other),
 485         }
 486         Ok(())
 487     }
 488
 489     #[test]
 490     fn sign_up_then_send_validation_then_sign_in() -> Result<()> {
 491         let connection = Connection::new_in_memory()?;
 492
 493         let email = "paul@test.org";
 494         let password = "12345";
 495
 496         // Sign up.
 497         let validation_token =
 498             match connection.sign_up(email, password)? {
 499                 SignUpResult::UserCreatedWaitingForValidation(token) => token, // Nominal case.
 500                 other => panic!("{:?}", other),
 501             };
 502
 503         // Validation.
 504         match connection.validation(&validation_token, Duration::hours(1), "127.0.0.1", "Mozilla/5.0")? {
 505             ValidationResult::Ok(_, _) => (),
 506             other => panic!("{:?}", other),
 507         };
 508
 509         // Sign in.
 510         match connection.sign_in(email, password, "127.0.0.1", "Mozilla/5.0")? {
 511             SignInResult::Ok(_, _) => (), // Nominal case.
 512             other => panic!("{:?}", other),
 513         }
 514
 515         Ok(())
 516     }
 517
 518     #[test]
 519     fn sign_up_then_send_validation_then_authentication() -> Result<()> {
 520         let connection = Connection::new_in_memory()?;
 521
 522         let email = "paul@test.org";
 523         let password = "12345";
 524
 525         // Sign up.
 526         let validation_token =
 527             match connection.sign_up(email, password)? {
 528                 SignUpResult::UserCreatedWaitingForValidation(token) => token, // Nominal case.
 529                 other => panic!("{:?}", other),
 530             };
 531
 532         // Validation.
 533         let (authentication_token, user_id) = match connection.validation(&validation_token, Duration::hours(1), "127.0.0.1", "Mozilla")? {
 534             ValidationResult::Ok(token, user_id) => (token, user_id),
 535             other => panic!("{:?}", other),
 536         };
 537
 538         // Check user login information.
 539         let user_login_info_1 = connection.get_user_login_info(&authentication_token)?;
 540         assert_eq!(user_login_info_1.ip, "127.0.0.1");
 541         assert_eq!(user_login_info_1.user_agent, "Mozilla");
 542
 543         // Authentication.
 544         let _user_id =
 545             match connection.authentication(&authentication_token, "192.168.1.1", "Chrome")? {
 546                 AuthenticationResult::Ok(user_id) => user_id, // Nominal case.
 547                 other => panic!("{:?}", other),
 548             };
 549
 550         // Check user login information.
 551         let user_login_info_2 = connection.get_user_login_info(&authentication_token)?;
 552         assert_eq!(user_login_info_2.ip, "192.168.1.1");
 553         assert_eq!(user_login_info_2.user_agent, "Chrome");
 554
 555         Ok(())
 556     }
 557
 558     #[test]
 559     fn sign_up_then_send_validation_then_sign_out_then_sign_in() -> Result<()> {
 560         let connection = Connection::new_in_memory()?;
 561
 562         let email = "paul@test.org";
 563         let password = "12345";
 564
 565         // Sign up.
 566         let validation_token =
 567             match connection.sign_up(email, password)? {
 568                 SignUpResult::UserCreatedWaitingForValidation(token) => token, // Nominal case.
 569                 other => panic!("{:?}", other),
 570             };
 571
 572         // Validation.
 573         let (authentication_token_1, user_id_1) =
 574             match connection.validation(&validation_token, Duration::hours(1), "127.0.0.1", "Mozilla")? {
 575                 ValidationResult::Ok(token, user_id) => (token, user_id),
 576                 other => panic!("{:?}", other),
 577             };
 578
 579         // Check user login information.
 580         let user_login_info_1 = connection.get_user_login_info(&authentication_token_1)?;
 581         assert_eq!(user_login_info_1.ip, "127.0.0.1");
 582         assert_eq!(user_login_info_1.user_agent, "Mozilla");
 583
 584         // Sign out.
 585         connection.sign_out(&authentication_token_1)?;
 586
 587         // Sign in.
 588         let (authentication_token_2, user_id_2) =
 589             match connection.sign_in(email, password, "192.168.1.1", "Chrome")? {
 590                 SignInResult::Ok(token, user_id) => (token, user_id),
 591                 other => panic!("{:?}", other),
 592             };
 593
 594         assert_eq!(user_id_1, user_id_2);
 595         assert_ne!(authentication_token_1, authentication_token_2);
 596
 597         // Check user login information.
 598         let user_login_info_2 = connection.get_user_login_info(&authentication_token_2)?;
 599
 600         assert_eq!(user_login_info_2.ip, "192.168.1.1");
 601         assert_eq!(user_login_info_2.user_agent, "Chrome");
 602
 603         Ok(())
 604     }
 605 }