1 files changed, 95 insertions, 0 deletions
diff --git a/third_party/rust/hyper/src/proto/h1/mod.rs b/third_party/rust/hyper/src/proto/h1/mod.rs
new file mode 100644
index 0000000000..2d0bf39bc9
--- /dev/null
+++ b/third_party/rust/hyper/src/proto/h1/mod.rs
@@ -0,0 +1,95 @@
+use bytes::BytesMut;
+use http::{HeaderMap, Method};
+
+use crate::proto::{BodyLength, DecodedLength, MessageHead};
+
+pub(crate) use self::conn::Conn;
+pub use self::decode::Decoder;
+pub(crate) use self::dispatch::Dispatcher;
+pub use self::encode::{EncodedBuf, Encoder};
+pub use self::io::Cursor; //TODO: move out of h1::io
+pub use self::io::MINIMUM_MAX_BUFFER_SIZE;
+
+mod conn;
+pub(super) mod date;
+mod decode;
+pub(crate) mod dispatch;
+mod encode;
+mod io;
+mod role;
+
+pub(crate) type ServerTransaction = role::Server;
+pub(crate) type ClientTransaction = role::Client;
+
+pub(crate) trait Http1Transaction {
+    type Incoming;
+    type Outgoing: Default;
+    const LOG: &'static str;
+    fn parse(bytes: &mut BytesMut, ctx: ParseContext<'_>) -> ParseResult<Self::Incoming>;
+    fn encode(enc: Encode<'_, Self::Outgoing>, dst: &mut Vec<u8>) -> crate::Result<Encoder>;
+
+    fn on_error(err: &crate::Error) -> Option<MessageHead<Self::Outgoing>>;
+
+    fn is_client() -> bool {
+        !Self::is_server()
+    }
+
+    fn is_server() -> bool {
+        !Self::is_client()
+    }
+
+    fn should_error_on_parse_eof() -> bool {
+        Self::is_client()
+    }
+
+    fn should_read_first() -> bool {
+        Self::is_server()
+    }
+
+    fn update_date() {}
+}
+
+/// Result newtype for Http1Transaction::parse.
+pub(crate) type ParseResult<T> = Result<Option<ParsedMessage<T>>, crate::error::Parse>;
+
+#[derive(Debug)]
+pub(crate) struct ParsedMessage<T> {
+    head: MessageHead<T>,
+    decode: DecodedLength,
+    expect_continue: bool,
+    keep_alive: bool,
+    wants_upgrade: bool,
+}
+
+pub(crate) struct ParseContext<'a> {
+    cached_headers: &'a mut Option<HeaderMap>,
+    req_method: &'a mut Option<Method>,
+}
+
+/// Passed to Http1Transaction::encode
+pub(crate) struct Encode<'a, T> {
+    head: &'a mut MessageHead<T>,
+    body: Option<BodyLength>,
+    keep_alive: bool,
+    req_method: &'a mut Option<Method>,
+    title_case_headers: bool,
+}
+
+/// Extra flags that a request "wants", like expect-continue or upgrades.
+#[derive(Clone, Copy, Debug)]
+struct Wants(u8);
+
+impl Wants {
+    const EMPTY: Wants = Wants(0b00);
+    const EXPECT: Wants = Wants(0b01);
+    const UPGRADE: Wants = Wants(0b10);
+
+    #[must_use]
+    fn add(self, other: Wants) -> Wants {
+        Wants(self.0 | other.0)
+    }
+
+    fn contains(&self, other: Wants) -> bool {
+        (self.0 & other.0) == other.0
+    }
+}