2022-08-12 20:46:43 +02:00
|
|
|
<?php
|
|
|
|
|
2022-08-14 16:49:52 +02:00
|
|
|
namespace php;
|
2022-08-12 20:46:43 +02:00
|
|
|
|
|
|
|
use Exception;
|
2022-08-14 15:52:47 +02:00
|
|
|
use Monolog\Logger;
|
2022-08-14 18:31:55 +02:00
|
|
|
use PDO;
|
2022-08-12 20:46:43 +02:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Manages interaction with the database in the context of users.
|
|
|
|
*/
|
2022-08-14 15:52:47 +02:00
|
|
|
// TODO: Remove duplication in this class
|
2022-08-12 20:46:43 +02:00
|
|
|
class UserManager
|
|
|
|
{
|
2022-08-14 17:54:55 +02:00
|
|
|
/**
|
|
|
|
* The maximum length of an email address.
|
|
|
|
*/
|
|
|
|
private const MAX_EMAIL_LENGTH = 254;
|
|
|
|
/**
|
|
|
|
* The minimum length of a password;
|
|
|
|
*/
|
|
|
|
private const MIN_PASSWORD_LENGTH = 8;
|
|
|
|
/**
|
|
|
|
* The maximum length of a password.
|
|
|
|
*/
|
|
|
|
private const MAX_PASSWORD_LENGTH = 255;
|
|
|
|
|
2022-08-14 15:52:47 +02:00
|
|
|
/**
|
|
|
|
* @var Logger The logger to use for logging.
|
|
|
|
*/
|
|
|
|
private Logger $logger;
|
2022-08-12 20:46:43 +02:00
|
|
|
/**
|
|
|
|
* @var string The filename of the database to interact with.
|
|
|
|
*/
|
|
|
|
private string $db_filename;
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Constructs a new user manager.
|
|
|
|
*
|
2022-08-14 15:52:47 +02:00
|
|
|
* @param Logger $logger the logger to use for logging
|
2022-08-12 20:46:43 +02:00
|
|
|
* @param string $db_filename the filename of the database to interact with
|
|
|
|
*/
|
2022-08-14 15:52:47 +02:00
|
|
|
public function __construct(Logger $logger, string $db_filename)
|
2022-08-12 20:46:43 +02:00
|
|
|
{
|
2022-08-14 15:52:47 +02:00
|
|
|
$this->logger = $logger;
|
2022-08-12 20:46:43 +02:00
|
|
|
$this->db_filename = $db_filename;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2022-08-14 12:31:47 +02:00
|
|
|
/**
|
|
|
|
* Populates the database with the necessary structures for users.
|
|
|
|
*
|
|
|
|
* @return void
|
|
|
|
*/
|
|
|
|
public function install(): void
|
|
|
|
{
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
$conn->exec("CREATE TABLE users(uuid text primary key not null, email text not null, password text not null);");
|
2022-08-14 12:31:47 +02:00
|
|
|
}
|
|
|
|
|
2022-08-12 20:46:43 +02:00
|
|
|
/**
|
|
|
|
* Registers a new user.
|
|
|
|
*
|
|
|
|
* @param string $email The user-submitted email address.
|
|
|
|
* @param string $password The user-submitted password.
|
|
|
|
* @param string $password_confirm The user-submitted password confirmation.
|
|
|
|
* @return Response a response with message `null` if the user was registered, or a response with a message
|
|
|
|
* explaining what went wrong otherwise
|
|
|
|
*/
|
|
|
|
public function register(string $email, string $password, string $password_confirm): Response
|
|
|
|
{
|
2022-08-14 18:31:55 +02:00
|
|
|
// Generate UUID
|
|
|
|
try {
|
|
|
|
$uuid = bin2hex(random_bytes(16));
|
|
|
|
} catch (Exception $exception) {
|
|
|
|
$this->logger->emergency("Failed to generate UUID.", [$exception]);
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: ["target" => null, "message" => "Failed to generate UUID."], satisfied: false);
|
2022-08-14 18:31:55 +02:00
|
|
|
}
|
|
|
|
|
2022-08-12 20:46:43 +02:00
|
|
|
// Validate
|
2022-08-14 17:54:55 +02:00
|
|
|
if (!filter_var($email, FILTER_VALIDATE_EMAIL) || strlen($email) > self::MAX_EMAIL_LENGTH)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "email", "message" => "Invalid email address."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-14 17:54:55 +02:00
|
|
|
if (strlen($password) < self::MIN_PASSWORD_LENGTH || strlen($password) > self::MAX_PASSWORD_LENGTH)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: [
|
|
|
|
"target" => "password",
|
|
|
|
"message" => "Your password should be at least 8 and at most 255 characters long."
|
|
|
|
],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-14 14:14:25 +02:00
|
|
|
if ($password !== $password_confirm)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "passwordConfirm", "message" => "Passwords do not match."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-14 18:31:55 +02:00
|
|
|
// Connect
|
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
$conn->beginTransaction();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
|
|
|
// Check if email address is already in use
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt = $conn->prepare("SELECT COUNT(*) as count FROM users WHERE email=:email;");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":email", $email);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
|
|
|
$result = $stmt->fetch(PDO::FETCH_ASSOC);
|
|
|
|
if ($result["count"] > 0) {
|
|
|
|
$conn->rollBack();
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "email", "message" => "Email address already in use."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// Register user
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt = $conn->prepare("INSERT INTO users (uuid, email, password) VALUES (:uuid, :email, :password);");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":uuid", $uuid);
|
|
|
|
$stmt->bindValue(":email", $email);
|
|
|
|
$stmt->bindValue(":password", password_hash($password, PASSWORD_DEFAULT));
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
|
|
|
// Respond
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn->commit();
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: null, satisfied: true);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Deletes the user with the given UUID.
|
|
|
|
*
|
|
|
|
* @param string $uuid the UUID of the user to delete
|
|
|
|
* @return Response a response with message `null` if the user was deleted, or a response with a message explaining
|
|
|
|
* what went wrong otherwise
|
|
|
|
*/
|
|
|
|
public function delete(string $uuid): Response
|
|
|
|
{
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
|
|
|
|
$stmt = $conn->prepare("DELETE FROM users WHERE uuid=:uuid;");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":uuid", $uuid);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: null, satisfied: true);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Validates a login attempt with the given email address and password.
|
|
|
|
*
|
|
|
|
* @param string $email the email address of the user whose password should be checked
|
|
|
|
* @param string $password the password to check against the specified user
|
2022-08-14 17:47:18 +02:00
|
|
|
* @return array{Response, ?string} the first element is a response with message `null` if the login was successful,
|
|
|
|
* or a response with a message explaining what went wrong otherwise; the second element is the UUID of the user
|
|
|
|
* that was logged in as, or `null` if the login should not be performed
|
2022-08-12 20:46:43 +02:00
|
|
|
*/
|
|
|
|
public function check_login(string $email, string $password): array
|
|
|
|
{
|
2022-08-19 17:23:24 +02:00
|
|
|
if (!filter_var($email, FILTER_VALIDATE_EMAIL) || strlen($email) > self::MAX_EMAIL_LENGTH)
|
|
|
|
return [
|
|
|
|
new Response(
|
|
|
|
payload: ["target" => "email", "message" => "Invalid email address."],
|
|
|
|
satisfied: false
|
|
|
|
),
|
|
|
|
null
|
|
|
|
];
|
|
|
|
if (strlen($password) > self::MAX_PASSWORD_LENGTH)
|
2022-08-19 01:39:23 +02:00
|
|
|
return [
|
|
|
|
new Response(
|
|
|
|
payload: ["target" => "password", "message" => "Incorrect combination of email and password."],
|
|
|
|
satisfied: false
|
|
|
|
),
|
|
|
|
null
|
|
|
|
];
|
2022-08-14 17:54:55 +02:00
|
|
|
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
$stmt = $conn->prepare("SELECT uuid, password FROM users WHERE email=:email;");
|
2022-08-14 12:31:47 +02:00
|
|
|
$stmt->bindValue(":email", $email);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
|
|
|
$results = $stmt->fetchAll(PDO::FETCH_ASSOC);
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-14 18:31:55 +02:00
|
|
|
return (sizeof($results) === 0 || !password_verify($password, $results[0]["password"]))
|
2022-08-19 01:39:23 +02:00
|
|
|
? [
|
|
|
|
new Response(
|
|
|
|
payload: ["target" => "password", "message" => "Incorrect combination of email and password."],
|
|
|
|
satisfied: false
|
|
|
|
),
|
|
|
|
null
|
|
|
|
]
|
|
|
|
: [new Response(payload: null, satisfied: true), $results[0]["uuid"]];
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the user with the given UUID.
|
|
|
|
*
|
|
|
|
* @param string $uuid the UUID of the user to return
|
2022-08-14 12:31:47 +02:00
|
|
|
* @return Response the user with the given UUID, or a response with an explanation what went wrong otherwise
|
2022-08-12 20:46:43 +02:00
|
|
|
*/
|
2022-08-14 12:31:47 +02:00
|
|
|
public function get_user_data(string $uuid): Response
|
2022-08-12 20:46:43 +02:00
|
|
|
{
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
$stmt = $conn->prepare("SELECT * FROM users WHERE uuid=:uuid;");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":uuid", $uuid);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
|
|
|
$user = $stmt->fetch(PDO::FETCH_ASSOC);
|
2022-08-18 16:25:23 +02:00
|
|
|
if ($user === false)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: ["target" => "uuid", "message" => "Invalid user."], satisfied: false);
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: $user, satisfied: true);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Updates the indicated user's email address.
|
|
|
|
*
|
|
|
|
* @param string $uuid the UUID of the user whose email address should be updated
|
|
|
|
* @param string $email the new email address
|
|
|
|
* @return Response a response with message `null` if the email address was updated, or a response with a message
|
|
|
|
* explaining what went wrong otherwise
|
|
|
|
*/
|
|
|
|
public function set_email(string $uuid, string $email): Response
|
|
|
|
{
|
|
|
|
// Validate
|
2022-08-14 17:54:55 +02:00
|
|
|
if (!filter_var($email, FILTER_VALIDATE_EMAIL) || strlen($email) > self::MAX_EMAIL_LENGTH)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "email", "message" => "Invalid email address."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-14 18:31:55 +02:00
|
|
|
// Connect
|
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
$conn->beginTransaction();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
|
|
|
// Check if email address is already in use
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt = $conn->prepare("SELECT COUNT(*) as count FROM users WHERE email=:email;");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":email", $email);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
|
|
|
if ($stmt->fetch(PDO::FETCH_ASSOC)["count"] > 0) {
|
|
|
|
$conn->rollBack();
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "email", "message" => "Email address already in use."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// Update email address
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt = $conn->prepare("UPDATE users SET email=:email WHERE uuid=:uuid;");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":uuid", $uuid);
|
|
|
|
$stmt->bindValue(":email", $email);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
|
|
|
// Respond
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn->commit();
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: null, satisfied: true);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Updates the indicated user's password.
|
|
|
|
*
|
|
|
|
* @param string $uuid the UUID of the user whose password should be updated
|
2022-08-14 12:31:47 +02:00
|
|
|
* @param string $password_old the old password
|
|
|
|
* @param string $password_new the new password
|
2022-08-12 20:46:43 +02:00
|
|
|
* @param string $password_confirm the confirmation of the new password
|
|
|
|
* @return Response a response with message `null` if the password was updated, or a response with a message
|
|
|
|
* explaining what went wrong otherwise
|
|
|
|
*/
|
2022-08-14 12:31:47 +02:00
|
|
|
public function set_password(string $uuid, string $password_old, string $password_new,
|
|
|
|
string $password_confirm): Response
|
2022-08-12 20:46:43 +02:00
|
|
|
{
|
|
|
|
// Validate
|
2022-08-19 01:39:23 +02:00
|
|
|
if (strlen($password_old) > self::MAX_PASSWORD_LENGTH)
|
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "passwordOld", "message" => "Incorrect old password."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-14 17:54:55 +02:00
|
|
|
if (strlen($password_new) < self::MIN_PASSWORD_LENGTH || strlen($password_new) > self::MAX_PASSWORD_LENGTH)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: [
|
|
|
|
"target" => "passwordNew",
|
|
|
|
"message" => "Your password should be at least 8 and at most 255 characters long."
|
|
|
|
],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-14 14:14:25 +02:00
|
|
|
if ($password_new !== $password_confirm)
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "passwordConfirm", "message" => "New passwords do not match."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-14 18:31:55 +02:00
|
|
|
// Connect
|
|
|
|
$conn = Database::connect($this->db_filename);
|
|
|
|
$conn->beginTransaction();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-14 12:31:47 +02:00
|
|
|
// Validate old password
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt = $conn->prepare("SELECT password FROM users WHERE uuid=:uuid;");
|
2022-08-14 12:31:47 +02:00
|
|
|
$stmt->bindValue(":uuid", $uuid);
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
|
|
|
$user = $stmt->fetch(PDO::FETCH_ASSOC);
|
2022-08-14 12:31:47 +02:00
|
|
|
if (!password_verify($password_old, $user["password"])) {
|
2022-08-14 18:31:55 +02:00
|
|
|
$conn->rollBack();
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(
|
|
|
|
payload: ["target" => "passwordOld", "message" => "Incorrect old password."],
|
|
|
|
satisfied: false
|
|
|
|
);
|
2022-08-14 12:31:47 +02:00
|
|
|
}
|
|
|
|
|
2022-08-12 20:46:43 +02:00
|
|
|
// Update password
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt = $conn->prepare("UPDATE users SET password=:password WHERE uuid=:uuid;");
|
2022-08-12 20:46:43 +02:00
|
|
|
$stmt->bindValue(":uuid", $uuid);
|
2022-08-14 12:31:47 +02:00
|
|
|
$stmt->bindValue(":password", password_hash($password_new, PASSWORD_DEFAULT));
|
2022-08-14 18:31:55 +02:00
|
|
|
$stmt->execute();
|
2022-08-12 20:46:43 +02:00
|
|
|
|
2022-08-14 18:31:55 +02:00
|
|
|
// Respond
|
|
|
|
$conn->commit();
|
2022-08-19 01:39:23 +02:00
|
|
|
return new Response(payload: null, satisfied: true);
|
2022-08-12 20:46:43 +02:00
|
|
|
}
|
|
|
|
}
|