public-appservice 0.2.0

An appservice to make Matrix spaces publicly accessible.
Documentation 
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use std::time::Duration;

use serde::{Deserialize, Serialize};

#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct AuthMetadata {
    pub issuer: String,
    pub authorization_endpoint: String,
    pub token_endpoint: String,
    pub registration_endpoint: String,
}

pub async fn get_auth_metadata(homeserver: &str) -> Result<AuthMetadata, anyhow::Error> {

    let url = format!("{}/_matrix/client/unstable/org.matrix.msc2965/auth_metadata", homeserver);

    let client = reqwest::Client::builder()
        .timeout(Duration::from_secs(5))
        .connect_timeout(Duration::from_secs(3)) 
        .build()?;

    let response = client.get(&url)
        .send()
        .await
        .map_err(|_| anyhow::anyhow!("Failed to query auth metadata: {}", url))?;

    let metadata = response.json::<AuthMetadata>().await
        .map_err(|_| anyhow::anyhow!("Failed to parse metadata."))?;

    Ok(metadata)
}