feature: Raw fragment message

examples/autobahn-client.rs

@@ -30,7 +30,7 @@ fn run_test(case: u32) -> Result<()> {
             msg @ Message::Text(_) | msg @ Message::Binary(_) => {
                 socket.write_message(msg)?;
             }
-            Message::Ping(_) | Message::Pong(_) | Message::Close(_) => {}
+            Message::Ping(_) | Message::Pong(_) | Message::Close(_) | Message::Frame(_) => {}
         }
     }
 }

examples/autobahn-server.rs

@@ -21,7 +21,7 @@ fn handle_client(stream: TcpStream) -> Result<()> {
             msg @ Message::Text(_) | msg @ Message::Binary(_) => {
                 socket.write_message(msg)?;
             }
-            Message::Ping(_) | Message::Pong(_) | Message::Close(_) => {}
+            Message::Ping(_) | Message::Pong(_) | Message::Close(_) | Message::Frame(_) => {}
         }
     }
 }

src/protocol/frame/frame.rs

@@ -6,6 +6,7 @@ use std::{
     fmt,
     io::{Cursor, ErrorKind, Read, Write},
     result::Result as StdResult,
+    str::Utf8Error,
     string::{FromUtf8Error, String},
 };
 
@@ -39,7 +40,7 @@ impl<'t> fmt::Display for CloseFrame<'t> {
 
 /// A struct representing a WebSocket frame header.
 #[allow(missing_copy_implementations)]
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Eq, PartialEq)]
 pub struct FrameHeader {
     /// Indicates that the frame is the last one of a possibly fragmented message.
     pub is_final: bool,
@@ -199,7 +200,7 @@ impl FrameHeader {
 }
 
 /// A struct representing a WebSocket frame.
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Eq, PartialEq)]
 pub struct Frame {
     header: FrameHeader,
     payload: Vec<u8>,
@@ -280,6 +281,12 @@ impl Frame {
         String::from_utf8(self.payload)
     }
 
+    /// Get frame payload as `&str`.
+    #[inline]
+    pub fn to_text<'a>(&'a self) -> Result<&'a str, Utf8Error> {
+        std::str::from_utf8(&self.payload)
+    }
+
     /// Consume the frame into a closing frame.
     #[inline]
     pub(crate) fn into_close(self) -> Result<Option<CloseFrame<'static>>> {

src/protocol/message.rs

@@ -5,7 +5,7 @@ use std::{
     str,
 };
 
-use super::frame::CloseFrame;
+use super::frame::{CloseFrame, Frame};
 use crate::error::{CapacityError, Error, Result};
 
 mod string_collect {
@@ -172,6 +172,8 @@ pub enum Message {
     Pong(Vec<u8>),
     /// A close message with the optional close frame.
     Close(Option<CloseFrame<'static>>),
+    /// Raw frame. Note, that you're not going to get this value while reading the message.
+    Frame(Frame),
 }
 
 impl Message {
@@ -224,6 +226,7 @@ impl Message {
                 data.len()
             }
             Message::Close(ref data) => data.as_ref().map(|d| d.reason.len()).unwrap_or(0),
+            Message::Frame(ref frame) => frame.len(),
         }
     }
 
@@ -240,6 +243,7 @@ impl Message {
             Message::Binary(data) | Message::Ping(data) | Message::Pong(data) => data,
             Message::Close(None) => Vec::new(),
             Message::Close(Some(frame)) => frame.reason.into_owned().into_bytes(),
+            Message::Frame(frame) => frame.into_data(),
         }
     }
 
@@ -248,10 +252,11 @@ impl Message {
         match self {
             Message::Text(string) => Ok(string),
             Message::Binary(data) | Message::Ping(data) | Message::Pong(data) => {
-                Ok(String::from_utf8(data).map_err(|err| err.utf8_error())?)
+                Ok(String::from_utf8(data)?)
             }
             Message::Close(None) => Ok(String::new()),
             Message::Close(Some(frame)) => Ok(frame.reason.into_owned()),
+            Message::Frame(frame) => Ok(frame.into_string()?),
         }
     }
 
@@ -265,6 +270,7 @@ impl Message {
             }
             Message::Close(None) => Ok(""),
             Message::Close(Some(ref frame)) => Ok(&frame.reason),
+            Message::Frame(ref frame) => Ok(frame.to_text()?),
         }
     }
 }

src/protocol/mod.rs

@@ -356,6 +356,7 @@ impl WebSocketContext {
                 return self.write_pending(stream);
             }
             Message::Close(code) => return self.close(stream, code),
+            Message::Frame(f) => f,
         };
 
         self.send_queue.push_back(frame);