From c78df603d7355563c9f726f97bf318273fc5bb83 Mon Sep 17 00:00:00 2001 From: Quentin Date: Sun, 8 Nov 2020 16:02:16 +0100 Subject: Add some documentation --- src/web/web_server.rs | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/web/web_server.rs b/src/web/web_server.rs index a615ec8f..ce1f7ee1 100644 --- a/src/web/web_server.rs +++ b/src/web/web_server.rs @@ -58,7 +58,15 @@ async fn handler( Ok(Response::new(Body::from("hello world\n"))) } +/// Extract host from the authority section given by the HTTP host header +/// +/// The HTTP host contains both a host and a port. +/// Extracting the port is more complex than just finding the colon (:) symbol. +/// An example of a case where it does not work: [::1]:3902 +/// Instead, we use the Uri module provided by Hyper that correctl parses this "authority" section fn authority_to_host(authority: &str) -> Result { + // Hyper can not directly parse authority section so we build a fake URL + // that contains our authority section let mut uri_str: String = "fake://".to_owned(); uri_str.push_str(authority); @@ -66,7 +74,7 @@ fn authority_to_host(authority: &str) -> Result { Ok(uri) => { let host = uri .host() - .ok_or(Error::BadRequest(format!("Unable to extract host from authority as string")))?; + .ok_or(Error::BadRequest(format!("Unable to extract host from authority")))?; Ok(String::from(host)) } _ => Err(Error::BadRequest(format!("Unable to parse authority (host HTTP header)"))), -- cgit v1.2.3