1 files changed, 69 insertions, 0 deletions
diff --git a/src/modules/finger.rs b/src/modules/finger.rs
new file mode 100644
index 0000000..c61cfbe
--- /dev/null
+++ b/src/modules/finger.rs
@@ -0,0 +1,69 @@
+use {
+  crate::{response::success, route::track_mount},
+  std::io::{Read, Write},
+  windmark::response::Response,
+};
+
+pub fn module(router: &mut windmark::router::Router) {
+  track_mount(router, "/finger", "Finger-to-Gemini Gateway", |context| {
+    success(
+      &format!(
+        r"# Finger-to-Gemini Gateway
+
+To use this gateway, simply append the address of your target resource to the end of the current route, minus the protocol. Routed paths are supported!
+
+To visit my personal Finger server, <finger://fuwn.me>, you would visit <gemini://fuwn.me/finger/fuwn.me>.
+
+=> /finger/fuwn.me Try it!"
+      ),
+      &context,
+    )
+  });
+  track_mount(
+    router,
+    "/finger/*uri",
+    "-Finger-to-Gemini Gateway Router",
+    |context| {
+      if let Some(uri) = context.parameters.get("uri") {
+        let path;
+        let url = url::Url::parse({
+          let mut parts = uri.split("/");
+          let host = parts.next().unwrap();
+
+          path = parts.collect::<Vec<&str>>().join("/");
+
+          &if !host.contains(":") {
+            format!("{}:79", host)
+          } else {
+            host.to_string()
+          }
+        })
+        .unwrap();
+
+        let mut stream = std::net::TcpStream::connect(url.to_string()).unwrap();
+        let mut buffer = [0; 1024];
+
+        stream.write_all(format!("{path}\n").as_bytes()).unwrap();
+
+        let mut response = String::new();
+
+        loop {
+          let bytes_read = stream.read(&mut buffer).unwrap();
+
+          if bytes_read == 0 {
+            break;
+          }
+
+          #[allow(unsafe_code)]
+          response.push_str(unsafe {
+            std::str::from_utf8_unchecked(&buffer[..bytes_read])
+          });
+        }
+
+        Response::success(response)
+      } else {
+        Response::bad_request("Invalid URI")
+      }
+    },
+  );
+}