bitwarden-generators 3.0.0

use reqwest::{StatusCode, header::CONTENT_TYPE};

use crate::username::UsernameError;

pub(crate) async fn generate(
    http: &reqwest::Client,
    token: String,
) -> Result<String, UsernameError> {
    generate_with_api_url(http, token, "https://quack.duckduckgo.com".into()).await
}

async fn generate_with_api_url(
    http: &reqwest::Client,
    token: String,
    api_url: String,
) -> Result<String, UsernameError> {
    let response = http
        .post(format!("{api_url}/api/email/addresses"))
        .header(CONTENT_TYPE, "application/json")
        .bearer_auth(token)
        .send()
        .await?;

    if response.status() == StatusCode::UNAUTHORIZED {
        return Err(UsernameError::InvalidApiKey);
    }

    // Throw any other errors
    response.error_for_status_ref()?;

    #[derive(serde::Deserialize)]
    struct Response {
        address: String,
    }
    let response: Response = response.json().await?;

    Ok(format!("{}@duck.com", response.address))
}

#[cfg(test)]
mod tests {
    use serde_json::json;

    use crate::username::UsernameError;
    #[tokio::test]
    async fn test_mock_server() {
        use wiremock::{Mock, ResponseTemplate, matchers};

        let server = wiremock::MockServer::start().await;

        // Mock the request to the DDG API, and verify that the correct request is made
        server
            .register(
                Mock::given(matchers::path("/api/email/addresses"))
                    .and(matchers::method("POST"))
                    .and(matchers::header("Content-Type", "application/json"))
                    .and(matchers::header("Authorization", "Bearer MY_TOKEN"))
                    .respond_with(ResponseTemplate::new(201).set_body_json(json!({
                        "address": "bw7prt"
                    })))
                    .expect(1),
            )
            .await;
        // Mock an invalid token request
        server
            .register(
                Mock::given(matchers::path("/api/email/addresses"))
                    .and(matchers::method("POST"))
                    .and(matchers::header("Content-Type", "application/json"))
                    .and(matchers::header("Authorization", "Bearer MY_FAKE_TOKEN"))
                    .respond_with(ResponseTemplate::new(401))
                    .expect(1),
            )
            .await;

        let address = super::generate_with_api_url(
            &reqwest::Client::new(),
            "MY_TOKEN".into(),
            format!("http://{}", server.address()),
        )
        .await
        .unwrap();
        assert_eq!(address, "bw7prt@duck.com");

        let fake_token_error = super::generate_with_api_url(
            &reqwest::Client::new(),
            "MY_FAKE_TOKEN".into(),
            format!("http://{}", server.address()),
        )
        .await
        .unwrap_err();

        assert_eq!(
            fake_token_error.to_string(),
            UsernameError::InvalidApiKey.to_string()
        );

        server.verify().await;
    }
}