Function validate_password_complexity

client/src/cmds.rs:417–437

Checks if a password is sufficiently complex and returns an error when it isn't.

(password: &str)

/// Checks if a password is sufficiently complex and returns an error when it isn't.
fn validate_password_complexity(password: &str) -> Result<(), &'static str> {
    if password.len() < 8 {
        return Err("Must be at least 8 characters long");
    }

    let mut alphabetic = false;
    let mut numeric = false;
    for ch in password.chars() {
        if ch.is_alphabetic() {
            alphabetic = true;
        } else if ch.is_numeric() {
            numeric = true;
        }
    }

    if !alphabetic || !numeric {
        return Err("Must contain letters and numbers");
    }

    Ok(())
}

/// The `SIGNUP` command.
pub struct SignupCommand {