finnow/finnow-api/source/auth/model.d

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/**
* Defines models for the Finnow API's authentication system.
*/
module auth.model;
/**
* The user is the basic authenticated entity representing someone who has one
* or more profiles.
*/
struct User {
const string username;
const string passwordHash;
}
/**
* Validates a username string.
* Params:
* username = The username to check.
* Returns: True if the username is valid.
*/
bool validateUsername(string username) {
import std.regex;
import std.uni : toLower;
if (username is null || username.length < 3) return false;
const string[] RESERVED_USERNAMES = ["user", "admin"];
static foreach (reservedUsername; RESERVED_USERNAMES) {
if (toLower(username) == reservedUsername) return false;
}
auto r = ctRegex!(`^[a-zA-Z]+[a-zA-Z0-9_]+$`);
return !matchFirst(username, r).empty;
}
/**
* Validates that a password is of sufficient complexity.
* Params:
* password = The password to check.
* Returns: True if the password is sufficiently complex.
*/
bool validatePassword(string password) {
return password !is null && password.length >= 8;
}