114 lines
3.1 KiB
Rust
114 lines
3.1 KiB
Rust
use crate::Response;
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use std::{io::Cursor, sync::Arc};
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use tokio::{
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io::{AsyncReadExt, AsyncWriteExt},
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net::TcpStream,
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};
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use tokio_rustls::{rustls::TLSError, TlsConnector};
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use url::Url;
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#[derive(thiserror::Error, Debug)]
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pub enum Error {
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#[error("TLS error: {0:?}")]
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TLS(#[from] TLSError),
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#[error("URL error: {0:?}")]
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URL(#[from] url::ParseError),
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#[error("Invalid DNS name: {0:?}")]
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InvalidDNSName(#[from] webpki::InvalidDNSNameError),
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#[error("IO error: {0:?}")]
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IO(#[from] std::io::Error),
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#[error("Response parsing error: {0:?}")]
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ResponseParse(#[from] crate::ResponseError),
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#[error("Invalid URL scheme {0:?}")]
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InvalidScheme(String),
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}
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pub async fn get<T>(u: T, cfg: tokio_rustls::rustls::ClientConfig) -> Result<crate::Response, Error>
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where
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T: Into<String>,
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{
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let u = u.into();
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let mut ur = Url::parse(&u.clone())?;
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if ur.port().is_none() {
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ur.set_port(Some(1965)).unwrap();
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}
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if ur.scheme() != "gemini" {
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return Err(Error::InvalidScheme(ur.scheme().to_string()));
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}
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let cfg = Arc::new(cfg);
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let host = ur.host_str().unwrap();
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let name_ref = webpki::DNSNameRef::try_from_ascii_str(host)?;
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let config = TlsConnector::from(cfg);
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let sock = TcpStream::connect(&format!("{}:{}", host, ur.port().unwrap())).await?;
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let mut tls = config.connect(name_ref, sock).await?;
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let req = format!("{}\r\n", u);
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log::trace!("writing request {:?}", req);
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tls.write(req.as_bytes()).await?;
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let mut buf: Vec<u8> = vec![];
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tls.read_to_end(&mut buf).await?;
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Ok(Response::parse(&mut Cursor::new(buf))?)
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}
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#[cfg(test)]
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mod tests {
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use tokio_rustls::rustls;
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fn config() -> rustls::ClientConfig {
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let mut config = rustls::ClientConfig::new();
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config
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.dangerous()
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.set_certificate_verifier(Arc::new(NoCertificateVerification {}));
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config
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}
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struct NoCertificateVerification {}
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impl rustls::ServerCertVerifier for NoCertificateVerification {
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fn verify_server_cert(
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&self,
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_roots: &rustls::RootCertStore,
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_presented_certs: &[rustls::Certificate],
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_dns_name: webpki::DNSNameRef<'_>,
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_ocsp: &[u8],
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) -> Result<rustls::ServerCertVerified, rustls::TLSError> {
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Ok(rustls::ServerCertVerified::assertion())
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}
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}
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use super::*;
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#[tokio::test]
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async fn gemini_homepage() -> Result<(), Error> {
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let _ = pretty_env_logger::try_init();
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let resp = get("gemini://gemini.circumlunar.space/".to_string(), config()).await?;
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assert_eq!(resp.status, crate::StatusCode::Success);
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assert_eq!(resp.meta, "text/gemini");
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assert_ne!(resp.body.len(), 0);
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Ok(())
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}
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#[tokio::test]
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async fn gus() -> Result<(), Error> {
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let _ = pretty_env_logger::try_init();
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let resp = get("gemini://gus.guru/".to_string(), config()).await?;
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assert_eq!(resp.status, crate::StatusCode::Success);
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assert_eq!(resp.meta, "text/gemini");
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assert_ne!(resp.body.len(), 0);
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Ok(())
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}
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}
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