http-signature-normalization/http-signature-normalization-actix/examples/client.rs

use actix_web::{client::Client, error::BlockingError};
use http_signature_normalization_actix::prelude::*;
use sha2::{Digest, Sha256};
use std::time::SystemTime;

async fn request(config: Config) -> Result<(), Box<dyn std::error::Error>> {
    let digest = Sha256::new();

    let mut response = Client::default()
        .post("http://127.0.0.1:8010/")
        .append_header(("User-Agent", "Actix Web"))
        .append_header(("Accept", "text/plain"))
        .insert_header(actix_web::http::header::Date(SystemTime::now().into()))
        .signature_with_digest(config, "my-key-id", digest, "Hewwo-owo", |s| {
            println!("Signing String\n{}", s);
            Ok(base64::encode(s)) as Result<_, MyError>
        })
        .await?
        .send()
        .await
        .map_err(|e| {
            eprintln!("Error, {}", e);
            MyError::SendRequest
        })?;

    let body = response.body().await.map_err(|e| {
        eprintln!("Error, {}", e);
        MyError::Body
    })?;

    println!("{:?}", body);
    Ok(())
}

#[actix_rt::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    std::env::set_var("RUST_LOG", "info");
    pretty_env_logger::init();

    let config = Config::default().require_header("accept").require_digest();

    request(config.clone()).await?;
    request(config.mastodon_compat()).await?;
    Ok(())
}

#[derive(Debug, thiserror::Error)]
pub enum MyError {
    #[error("Failed to create signing string, {0}")]
    Convert(#[from] PrepareSignError),

    #[error("Failed to create header, {0}")]
    Header(#[from] InvalidHeaderValue),

    #[error("Failed to send request")]
    SendRequest,

    #[error("Failed to retrieve request body")]
    Body,

    #[error("Blocking operation was canceled")]
    Canceled,
}

impl From<BlockingError> for MyError {
    fn from(_: BlockingError) -> Self {
        MyError::Canceled
    }
}