Add 2fa compliance

[C0D3-M4513R]

vrchatapi/specification#241

Adds 2fa support to vrcapi.
The code has been adapted from a commit, from 9 months ago, where I edited source-code.
I adapted the code to the generate.sh file.

Due to issues with compilation and bash, I needed to add the extra lines

[Rexios80]

What about the existing code doesn't support 2FA?

[C0D3-M4513R]

What about the existing code doesn't support 2FA?

Previously, if you had 2fa, the response from vrchat would fail to serialise as a CurrentUser.
This would cause serde to spit out an error, which would get wrapped in the Error types.

This PR makes it way easier and way less jank to handle a 2fa-enabled user.

Edit: Also see the mentioned specification issue, where you mentioned, that you handled this manually for the Dart api.

[DerTiedemann]

I have run into the same issue, leading to me write my own crude implementation, I would love to see this PR merged <3
Edit: Based in this example

pub use vrchatapi::apis;

fn main() {
    let username =
        std::env::var("VRCHAT_USERNAME").expect("Missing VRCHAT_USERNAME environment variable");
    let password =
        std::env::var("VRCHAT_PASSWORD").expect("Missing VRCHAT_PASSWORD environment variable");

    let config = apis::configuration::Configuration {
        basic_auth: Some((username, Some(password))),
        user_agent: Some(
            "Mozilla/5.0 (Windows NT 6.1; rv:40.0) Gecko/20100101 Firefox/40.0".to_string(),
        ),
        ..Default::default()
    };

    let me =
        apis::authentication_api::get_current_user(&config).expect("Failed to get current user");
    println!("Username: {:?}", me.username);

    let online = apis::system_api::get_current_online_users(&config).unwrap();
    println!("Current Online Users: {}", online);
}

I get the following error with an account that has 2FA set up:

thread 'main' panicked at examples/online.rs:18:61:
Failed to get current user: Serde(Error("missing field `acceptedTOSVersion`", line: 1, column: 40))

This PR would fix that Serialization error and would give a clear and consise way of dealing with unknown account states via a simple match.

[ariesclark]

Please rebase your PR to the latest commit.

[C0D3-M4513R]

I was just doing exactly that.

[DerTiedemann]

Tested with this code:

use std::io::BufRead;

pub use vrchatapi::{apis, models};

#[tokio::main]
async fn main() {
    let username =
        std::env::var("VRCHAT_USERNAME").expect("Missing VRCHAT_USERNAME environment variable");
    let password =
        std::env::var("VRCHAT_PASSWORD").expect("Missing VRCHAT_PASSWORD environment variable");

    let config = apis::configuration::Configuration {
        basic_auth: Some((username, Some(password))),
        user_agent: Some(
            "Mozilla/5.0 (Windows NT 6.1; rv:40.0) Gecko/20100101 Firefox/40.0".to_string(),
        ),
        ..Default::default()
    };

    let me = apis::authentication_api::get_current_user(&config)
        .await
        .expect("Failed to get current user");
    match me {
        vrchatapi::models::EitherUserOrTwoFactor::CurrentUser(me) => {
            println!("Current User: {}", me.display_name);
        }
        vrchatapi::models::EitherUserOrTwoFactor::RequiresTwoFactorAuth(_two_factor_type) => {
            // i should check here if its email or TOTP
            let mut code = String::new();
            let stdin = std::io::stdin();
            stdin
                .lock()
                .read_line(&mut code)
                .expect("Failed to read line");
            let resp =
                apis::authentication_api::verify2_fa(&config, models::TwoFactorAuthCode::new(code))
                    .await
                    .expect("Failed to verify 2FA");
            if !resp.verified {
                panic!("Failed to verify 2FA");
            }
        }
    }

    let online = apis::system_api::get_current_online_users(&config)
        .await
        .unwrap();
    println!("Current Online Users: {}", online);
}

[DerTiedemann]

LGTM!