feat: Add http2_max_header_list_size to the client builder (seanmon…

…star#2465)

Cargo.toml

@@ -122,7 +122,7 @@ encoding_rs = { version = "0.8", optional = true }
 http-body = "1"
 http-body-util = "0.1"
 hyper = { version = "1.1", features = ["http1", "client"] }
-hyper-util = { version = "0.1.3", features = ["http1", "client", "client-legacy", "tokio"] }
+hyper-util = { version = "0.1.10", features = ["http1", "client", "client-legacy", "tokio"] }
 h2 = { version = "0.4", optional = true }
 once_cell = "1.18"
 log = "0.4.17"
@@ -173,7 +173,7 @@ futures-channel = { version = "0.3", optional = true }
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
 env_logger = "0.10"
 hyper = { version = "1.1.0", default-features = false, features = ["http1", "http2", "client", "server"] }
-hyper-util = { version = "0.1.3", features = ["http1", "http2", "client", "client-legacy", "server-auto", "tokio"] }
+hyper-util = { version = "0.1.10", features = ["http1", "http2", "client", "client-legacy", "server-auto", "tokio"] }
 serde = { version = "1.0", features = ["derive"] }
 libflate = "2.1"
 brotli_crate = { package = "brotli", version = "6.0.0" }

src/async_impl/client.rs

@@ -145,6 +145,8 @@ struct Config {
     #[cfg(feature = "http2")]
     http2_max_frame_size: Option<u32>,
     #[cfg(feature = "http2")]
+    http2_max_header_list_size: Option<u32>,
+    #[cfg(feature = "http2")]
     http2_keep_alive_interval: Option<Duration>,
     #[cfg(feature = "http2")]
     http2_keep_alive_timeout: Option<Duration>,
@@ -247,6 +249,8 @@ impl ClientBuilder {
                 #[cfg(feature = "http2")]
                 http2_max_frame_size: None,
                 #[cfg(feature = "http2")]
+                http2_max_header_list_size: None,
+                #[cfg(feature = "http2")]
                 http2_keep_alive_interval: None,
                 #[cfg(feature = "http2")]
                 http2_keep_alive_timeout: None,
@@ -743,6 +747,9 @@ impl ClientBuilder {
             if let Some(http2_max_frame_size) = config.http2_max_frame_size {
                 builder.http2_max_frame_size(http2_max_frame_size);
             }
+            if let Some(http2_max_header_list_size) = config.http2_max_header_list_size {
+                builder.http2_max_header_list_size(http2_max_header_list_size);
+            }
             if let Some(http2_keep_alive_interval) = config.http2_keep_alive_interval {
                 builder.http2_keep_alive_interval(http2_keep_alive_interval);
             }
@@ -1318,6 +1325,16 @@ impl ClientBuilder {
         self
     }
 
+    /// Sets the maximum size of received header frames for HTTP2.
+    ///
+    /// Default is currently 16KB, but can change.
+    #[cfg(feature = "http2")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "http2")))]
+    pub fn http2_max_header_list_size(mut self, max_header_size_bytes: u32) -> ClientBuilder {
+        self.config.http2_max_header_list_size = Some(max_header_size_bytes);
+        self
+    }
+
     /// Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.
     ///
     /// Pass `None` to disable HTTP2 keep-alive.

src/blocking/client.rs

@@ -502,6 +502,15 @@ impl ClientBuilder {
         self.with_inner(|inner| inner.http2_max_frame_size(sz))
     }
 
+    /// Sets the maximum size of received header frames for HTTP2.
+    ///
+    /// Default is currently 16KB, but can change.
+    #[cfg(feature = "http2")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "http2")))]
+    pub fn http2_max_header_list_size(self, max_header_size_bytes: u32) -> ClientBuilder {
+        self.with_inner(|inner| inner.http2_max_header_list_size(max_header_size_bytes))
+    }
+
     /// This requires the optional `http3` feature to be
     /// enabled.
     #[cfg(feature = "http3")]