From 3970616451ab4336e37a7ddfdc67f51e01e55926 Mon Sep 17 00:00:00 2001
From: Fuwn <contact@fuwn.me>
Date: Sun, 24 Mar 2024 14:24:20 +0000
Subject: refactor: module for blocking, default to non-blocking

---
 src/request/blocking.rs | 63 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 src/request/blocking.rs

(limited to 'src/request/blocking.rs')

diff --git a/src/request/blocking.rs b/src/request/blocking.rs
new file mode 100644
index 0000000..0d78b52
--- /dev/null
+++ b/src/request/blocking.rs
@@ -0,0 +1,63 @@
+// This file is part of Germ <https://github.com/gemrest/germ>.
+// Copyright (C) 2022-2022 Fuwn <contact@fuwn.me>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 3.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// Copyright (C) 2022-2022 Fuwn <contact@fuwn.me>
+// SPDX-License-Identifier: GPL-3.0-only
+
+use {
+  crate::request::{GermVerifier, Response},
+  std::io::{Read, Write},
+};
+
+/// Make a request to a Gemini server. The `url` **should** be prefixed with a
+/// scheme (e.g. "gemini://").
+///
+/// # Example
+///
+/// ```rust
+/// match germ::request::request(&url::Url::parse("gemini://fuwn.me").unwrap()) {
+///   Ok(response) => println!("{:?}", response),
+///   Err(_) => {}
+/// }
+/// ```
+///
+/// # Errors
+/// - May error if the URL is invalid
+/// - May error if the TLS write fails
+/// - May error if the TLS read fails
+pub fn request(url: &url::Url) -> anyhow::Result<Response> {
+  let config = rustls::ClientConfig::builder()
+    .with_safe_defaults()
+    .with_custom_certificate_verifier(std::sync::Arc::new(GermVerifier::new()))
+    .with_no_client_auth();
+  let mut connection = rustls::ClientConnection::new(
+    std::sync::Arc::new(config),
+    url.domain().unwrap_or("").try_into()?,
+  )?;
+  let mut stream = std::net::TcpStream::connect(format!(
+    "{}:{}",
+    url.domain().unwrap_or(""),
+    url.port().unwrap_or(1965)
+  ))?;
+  let mut tls = rustls::Stream::new(&mut connection, &mut stream);
+
+  tls.write_all(format!("{url}\r\n").as_bytes())?;
+
+  let mut plain_text = Vec::new();
+
+  tls.read_to_end(&mut plain_text)?;
+
+  Ok(Response::new(&plain_text, tls.conn.negotiated_cipher_suite()))
+}
-- 
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