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authorAlex Auvolat <alex@adnab.me>2022-05-06 12:21:15 +0200
committerAlex Auvolat <alex@adnab.me>2022-05-06 12:21:15 +0200
commit8c6114c3d306acebca908f37861e2c03d8562032 (patch)
tree41431ed388b7eac30e56dfdca829a9f9d2fef03a
parent6383d9877282b98fa058ea4101ca6a8578c7514e (diff)
downloadtricot-8c6114c3d306acebca908f37861e2c03d8562032.tar.gz
tricot-8c6114c3d306acebca908f37861e2c03d8562032.zip
Try to clean up code and to fix WebSocket problemsdocker-38
Diffstat
-rw-r--r--src/https.rs39
-rw-r--r--src/proxy_config.rs10
-rw-r--r--src/reverse_proxy.rs54
3 files changed, 60 insertions, 43 deletions
diff --git a/src/https.rs b/src/https.rs
index 83eca7c..7dcf051 100644
--- a/src/https.rs
+++ b/src/https.rs
@@ -194,25 +194,24 @@ async fn handle(
handle_error(reverse_proxy::call(remote_addr.ip(), &to_addr, req).await)
};
- // Do further processing (compression, additionnal headers) only for 2xx responses
- if !response.status().is_success() {
- return Ok(response);
+ if response.status().is_success() {
+ // (TODO: maybe we want to add these headers even if it's not a success?)
+ for (header, value) in proxy_to.add_headers.iter() {
+ response.headers_mut().insert(
+ HeaderName::from_bytes(header.as_bytes())?,
+ HeaderValue::from_str(value)?,
+ );
+ }
}
- for (header, value) in proxy_to.add_headers.iter() {
- response.headers_mut().insert(
- HeaderName::from_bytes(header.as_bytes())?,
- HeaderValue::from_str(value)?,
- );
- }
- trace!("Response: {:?}", response);
- info!("{} {} {}", method, response.status().as_u16(), uri);
-
if https_config.enable_compression {
- try_compress(response, method, accept_encoding, &https_config).await
- } else {
- Ok(response)
- }
+ response =
+ try_compress(response, method.clone(), accept_encoding, &https_config).await?
+ };
+
+ trace!("Final response: {:?}", response);
+ info!("{} {} {}", method, response.status().as_u16(), uri);
+ Ok(response)
} else {
debug!("{}{} -> NOT FOUND", host, path);
info!("{} 404 {}", method, uri);
@@ -240,10 +239,14 @@ async fn try_compress(
https_config: &HttpsConfig,
) -> Result<Response<Body>> {
// Don't bother compressing successfull responses for HEAD and PUT (they should have an empty body)
- // Don't compress partial content, that would be wierd
- // If already compressed, return as is
+ // Don't compress partial content as it causes issues
+ // Don't bother compressing non-2xx results
+ // Don't compress Upgrade responses (e.g. websockets)
+ // Don't compress responses that are already compressed
if (response.status().is_success() && (method == Method::HEAD || method == Method::PUT))
|| response.status() == StatusCode::PARTIAL_CONTENT
+ || !response.status().is_success()
+ || response.headers().get(header::CONNECTION) == Some(&HeaderValue::from_static("Upgrade"))
|| response.headers().get(header::CONTENT_ENCODING).is_some()
{
return Ok(response);
diff --git a/src/proxy_config.rs b/src/proxy_config.rs
index bf7ae32..e45cc7b 100644
--- a/src/proxy_config.rs
+++ b/src/proxy_config.rs
@@ -355,16 +355,16 @@ pub fn spawn_proxy_config_task(
#[cfg(test)]
mod tests {
- use super::*;
+ use super::*;
- #[test]
- fn test_parse_tricot_add_header_tag() {
- match parse_tricot_add_header_tag("tricot-add-header Content-Security-Policy default-src 'none'; img-src 'self'; script-src 'self'; style-src 'self'") {
+ #[test]
+ fn test_parse_tricot_add_header_tag() {
+ match parse_tricot_add_header_tag("tricot-add-header Content-Security-Policy default-src 'none'; img-src 'self'; script-src 'self'; style-src 'self'") {
Some((name, value)) => {
assert_eq!(name, "Content-Security-Policy");
assert_eq!(value, "default-src 'none'; img-src 'self'; script-src 'self'; style-src 'self'");
}
_ => panic!("Passed a valid tag but the function says it is not valid")
}
- }
+ }
}
diff --git a/src/reverse_proxy.rs b/src/reverse_proxy.rs
index b5916be..99a7c98 100644
--- a/src/reverse_proxy.rs
+++ b/src/reverse_proxy.rs
@@ -48,9 +48,19 @@ fn remove_hop_headers(headers: &HeaderMap<HeaderValue>) -> HeaderMap<HeaderValue
result
}
-fn create_proxied_response<B>(mut response: Response<B>) -> Response<B> {
- *response.headers_mut() = remove_hop_headers(response.headers());
- response
+fn copy_upgrade_headers(
+ old_headers: &HeaderMap<HeaderValue>,
+ new_headers: &mut HeaderMap<HeaderValue>,
+) -> Result<()> {
+ if let Some(conn) = old_headers.get(header::CONNECTION) {
+ if conn.to_str()?.to_lowercase() == "upgrade" {
+ if let Some(upgrade) = old_headers.get(header::UPGRADE) {
+ new_headers.insert(header::CONNECTION, "Upgrade".try_into()?);
+ new_headers.insert(header::UPGRADE, upgrade.clone());
+ }
+ }
+ }
+ Ok(())
}
fn forward_uri<B>(forward_url: &str, req: &Request<B>) -> Result<Uri> {
@@ -72,12 +82,13 @@ fn create_proxied_request<B>(
.uri(forward_uri(forward_url, &request)?)
.version(hyper::Version::HTTP_11);
- let headers = builder.headers_mut().unwrap();
+ let old_headers = request.headers();
+ let new_headers = builder.headers_mut().unwrap();
- *headers = remove_hop_headers(request.headers());
+ *new_headers = remove_hop_headers(old_headers);
// If request does not have host header, add it from original URI authority
- if let header::Entry::Vacant(entry) = headers.entry(header::HOST) {
+ if let header::Entry::Vacant(entry) = new_headers.entry(header::HOST) {
if let Some(authority) = request.uri().authority() {
entry.insert(authority.as_str().parse()?);
}
@@ -86,7 +97,7 @@ fn create_proxied_request<B>(
// Concatenate cookie headers into single header
// (HTTP/2 allows several cookie headers, but we are proxying to HTTP/1.1 that does not)
let mut cookie_concat = vec![];
- for cookie in headers.get_all(header::COOKIE) {
+ for cookie in new_headers.get_all(header::COOKIE) {
if !cookie_concat.is_empty() {
cookie_concat.extend(b"; ");
}
@@ -94,12 +105,12 @@ fn create_proxied_request<B>(
}
if !cookie_concat.is_empty() {
// insert clears the old value of COOKIE and inserts the concatenated version instead
- headers.insert(header::COOKIE, cookie_concat.try_into()?);
+ new_headers.insert(header::COOKIE, cookie_concat.try_into()?);
}
// Add forwarding information in the headers
let x_forwarded_for_header_name = "x-forwarded-for";
- match headers.entry(x_forwarded_for_header_name) {
+ match new_headers.entry(x_forwarded_for_header_name) {
header::Entry::Vacant(entry) => {
entry.insert(client_ip.to_string().parse()?);
}
@@ -110,24 +121,27 @@ fn create_proxied_request<B>(
}
}
- headers.insert(
+ new_headers.insert(
HeaderName::from_bytes(b"x-forwarded-proto")?,
"https".try_into()?,
);
// Proxy upgrade requests properly
- if let Some(conn) = request.headers().get(header::CONNECTION) {
- if conn.to_str()?.to_lowercase() == "upgrade" {
- if let Some(upgrade) = request.headers().get(header::UPGRADE) {
- headers.insert(header::CONNECTION, "Upgrade".try_into()?);
- headers.insert(header::UPGRADE, upgrade.clone());
- }
- }
- }
+ copy_upgrade_headers(old_headers, new_headers)?;
Ok(builder.body(request.into_body())?)
}
+fn create_proxied_response<B>(mut response: Response<B>) -> Result<Response<B>> {
+ let old_headers = response.headers();
+ let mut new_headers = remove_hop_headers(old_headers);
+
+ copy_upgrade_headers(old_headers, &mut new_headers)?;
+
+ *response.headers_mut() = new_headers;
+ Ok(response)
+}
+
pub async fn call(
client_ip: IpAddr,
forward_uri: &str,
@@ -146,7 +160,7 @@ pub async fn call(
trace!("Inner response: {:?}", response);
- let proxied_response = create_proxied_response(response);
+ let proxied_response = create_proxied_response(response)?;
Ok(proxied_response)
}
@@ -173,7 +187,7 @@ pub async fn call_https(
trace!("Inner response (HTTPS): {:?}", response);
- let proxied_response = create_proxied_response(response);
+ let proxied_response = create_proxied_response(response)?;
Ok(proxied_response)
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-31 12:57:49 +0000