not working :(

amqp_messaging/src/methods/publish.rs

@@ -4,12 +4,12 @@ use amqp_core::{
     connection::{Channel, ConnectionEvent},
     error::ChannelException,
     message::Message,
-    methods::{BasicPublish, Method},
+    methods::{BasicDeliver, Method},
 };
-use tracing::info;
+use tracing::debug;
 
 pub async fn publish(channel_handle: Channel, message: Message) -> Result<()> {
-    info!(?message, "Publishing message");
+    debug!(?message, "Publishing message");
 
     let global_data = channel_handle.global_data.clone();
 
@@ -31,12 +31,12 @@ pub async fn publish(channel_handle: Channel, message: Message) -> Result<()> {
         // consuming is hard, but this should work *for now*
         let consumers = queue.consumers.lock();
         if let Some(consumer) = consumers.first() {
-            let method = Box::new(Method::BasicPublish(BasicPublish {
+            let method = Box::new(Method::BasicDeliver(BasicDeliver {
-                reserved_1: 0,
+                consumer_tag: consumer.tag.clone(),
+                delivery_tag: 0,
+                redelivered: false,
                 exchange: routing.exchange.clone(),
                 routing_key: routing.routing_key.clone(),
-                mandatory: false,
-                immediate: false,
             }));
 
             consumer

amqp_transport/src/connection.rs

@@ -1,11 +1,10 @@
 use crate::{
     error::{ConException, ProtocolError, Result, TransError},
     frame,
-    frame::{parse_content_header, Frame, FrameType},
+    frame::{parse_content_header, Frame, FrameType, MaxFrameSize},
     methods, sasl,
 };
 use amqp_core::{
-    amqp_todo,
     connection::{
         Channel, ChannelInner, ChannelNum, ConEventReceiver, ConEventSender, Connection,
         ConnectionEvent, ConnectionId, ContentHeader,
@@ -14,7 +13,7 @@ use amqp_core::{
     methods::{
         BasicPublish, ChannelClose, ChannelCloseOk, ChannelOpenOk, ConnectionClose,
         ConnectionCloseOk, ConnectionOpen, ConnectionOpenOk, ConnectionStart, ConnectionStartOk,
-        ConnectionTune, ConnectionTuneOk, FieldValue, Method, ReplyCode, ReplyText, Table,
+        ConnectionTune, ConnectionTuneOk, FieldValue, Longstr, Method, ReplyCode, ReplyText, Table,
     },
     GlobalData,
 };
@@ -39,7 +38,7 @@ fn ensure_conn(condition: bool) -> Result<()> {
     }
 }
 
-const FRAME_SIZE_MIN_MAX: usize = 4096;
+const FRAME_SIZE_MIN_MAX: MaxFrameSize = MaxFrameSize::new(4096);
 const CHANNEL_MAX: u16 = 0;
 const FRAME_SIZE_MAX: u32 = 0;
 const HEARTBEAT_DELAY: u16 = 0;
@@ -56,7 +55,7 @@ pub struct TransportChannel {
 pub struct TransportConnection {
     id: ConnectionId,
     stream: TcpStream,
-    max_frame_size: usize,
+    max_frame_size: MaxFrameSize,
     heartbeat_delay: u16,
     channel_max: u16,
     /// When the next heartbeat expires
@@ -149,23 +148,55 @@ impl TransportConnection {
         channel: ChannelNum,
         method: &Method,
         header: ContentHeader,
-        _body: SmallVec<[Bytes; 1]>,
+        body: &SmallVec<[Bytes; 1]>,
     ) -> Result<()> {
         self.send_method(channel, method).await?;
 
         let mut header_buf = Vec::new();
-        frame::write_content_header(&mut header_buf, header)?;
+        frame::write_content_header(&mut header_buf, &header)?;
-        frame::write_frame(
+        warn!(?header, ?header_buf, "Sending content header");
-            &Frame {
+        frame::write_frame(&mut self.stream, FrameType::Header, channel, &header_buf).await?;
-                kind: FrameType::Method,
-                channel,
-                payload: header_buf.into(),
-            },
-            &mut self.stream,
-        )
-        .await?;
 
-        amqp_todo!()
+        self.send_bodies(channel, body).await
+    }
+
+    async fn send_bodies(
+        &mut self,
+        channel: ChannelNum,
+        body: &SmallVec<[Bytes; 1]>,
+    ) -> Result<()> {
+        // this is inefficient if it's a huge message sent by a client with big frames to one with
+        // small frames
+        // we assume that this won't happen that that the first branch will be taken in most cases,
+        // elimination the overhead. What we win from keeping each frame as it is that we don't have
+        // to allocate again for each message
+
+        let max_size = self.max_frame_size.as_usize();
+
+        for payload in body {
+            if max_size > payload.len() {
+                trace!("Sending single method body frame");
+                // single frame
+                frame::write_frame(&mut self.stream, FrameType::Body, channel, payload).await?;
+            } else {
+                trace!(max = ?self.max_frame_size, "Chunking up method body frames");
+                // chunk it up into multiple sub-frames
+                let mut start = 0;
+                let mut end = max_size;
+
+                while end < payload.len() {
+                    let sub_payload = &payload[start..end];
+
+                    frame::write_frame(&mut self.stream, FrameType::Body, channel, sub_payload)
+                        .await?;
+
+                    start = end;
+                    end = (end + max_size).max(payload.len());
+                }
+            }
+        }
+
+        Ok(())
     }
 
     async fn send_method(&mut self, channel: ChannelNum, method: &Method) -> Result<()> {
@@ -173,15 +204,7 @@ impl TransportConnection {
 
         let mut payload = Vec::with_capacity(64);
         methods::write::write_method(method, &mut payload)?;
-        frame::write_frame(
+        frame::write_frame(&mut self.stream, FrameType::Method, channel, &payload).await
-            &Frame {
-                kind: FrameType::Method,
-                channel,
-                payload: payload.into(),
-            },
-            &mut self.stream,
-        )
-        .await
     }
 
     async fn recv_method(&mut self) -> Result<Method> {
@@ -250,7 +273,7 @@ impl TransportConnection {
         }) = tune_ok
         {
             self.channel_max = channel_max;
-            self.max_frame_size = usize::try_from(frame_max).unwrap();
+            self.max_frame_size = MaxFrameSize::new(usize::try_from(frame_max).unwrap());
             self.heartbeat_delay = heartbeat;
             self.reset_timeout();
         }
@@ -286,8 +309,14 @@ impl TransportConnection {
                 }
                 queued_method = self.event_receiver.recv() => {
                     match queued_method {
-                        Some(ConnectionEvent::Method(channel, method)) => self.send_method(channel, &method).await?,
+                        Some(ConnectionEvent::Method(channel, method)) => {
-                        Some(ConnectionEvent::MethodContent(channel, method, header, body)) => self.send_method_content(channel, &method, header, body).await?,
+                            trace!(?channel, ?method, "Received method from event queue");
+                            self.send_method(channel, &method).await?
+                        }
+                        Some(ConnectionEvent::MethodContent(channel, method, header, body)) => {
+                            trace!(?channel, ?method, ?header, ?body, "Received method with body from event queue");
+                            self.send_method_content(channel, &method, header, &body).await?
+                        }
                         Some(ConnectionEvent::Shutdown) => return self.close(0, "".to_owned()).await,
                         None => {}
                     }
@@ -640,13 +669,13 @@ impl Drop for TransportChannel {
 }
 
 fn server_properties(host: SocketAddr) -> Table {
-    fn ls(str: &str) -> FieldValue {
+    fn ls(str: impl Into<Longstr>) -> FieldValue {
         FieldValue::LongString(str.into())
     }
 
     let host_str = host.ip().to_string();
     HashMap::from([
-        ("host".to_owned(), ls(&host_str)),
+        ("host".to_owned(), ls(host_str)),
         ("product".to_owned(), ls("no name yet")),
         ("version".to_owned(), ls("0.1.0")),
         ("platform".to_owned(), ls("microsoft linux")),

amqp_transport/src/frame.rs

@@ -1,10 +1,11 @@
 use crate::error::{ConException, ProtocolError, Result};
-use amqp_core::{
+use amqp_core::connection::{ChannelNum, ContentHeader};
-    amqp_todo,
-    connection::{ChannelNum, ContentHeader},
-};
 use anyhow::Context;
 use bytes::Bytes;
+use std::{
+    fmt::{Debug, Formatter},
+    num::NonZeroUsize,
+};
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
 use tracing::trace;
 
@@ -133,71 +134,82 @@ pub fn parse_content_header(input: &[u8]) -> Result<ContentHeader> {
 
 mod content_header_write {
     use crate::{
-        methods::write_helper::{octet, shortstr, table, timestamp},
+        error::Result,
-        Result,
+        methods::write_helper::{longlong, octet, short, shortstr, table, timestamp},
     };
     use amqp_core::{
         connection::ContentHeader,
-        methods::FieldValue::{FieldTable, ShortShortUInt, ShortString, Timestamp},
+        methods::{
+            FieldValue::{FieldTable, ShortShortUInt, ShortString, Timestamp},
+            Table,
+        },
     };
 
-    pub fn write_content_header(buf: &mut Vec<u8>, header: ContentHeader) -> Result<()> {
+    pub fn write_content_header(buf: &mut Vec<u8>, header: &ContentHeader) -> Result<()> {
+        short(&header.class_id, buf)?;
+        short(&header.weight, buf)?;
+        longlong(&header.body_size, buf)?;
+
+        write_content_header_props(buf, &header.property_fields)
+    }
+
+    pub fn write_content_header_props(buf: &mut Vec<u8>, header: &Table) -> Result<()> {
         let mut flags = 0_u16;
         buf.extend_from_slice(&flags.to_be_bytes()); // placeholder
 
-        if let Some(ShortString(value)) = header.property_fields.get("content-type") {
+        if let Some(ShortString(value)) = header.get("content-type") {
             flags |= 1 << 15;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("content-encoding") {
+        if let Some(ShortString(value)) = header.get("content-encoding") {
             flags |= 1 << 14;
             shortstr(value, buf)?;
         }
-        if let Some(FieldTable(value)) = header.property_fields.get("headers") {
+        if let Some(FieldTable(value)) = header.get("headers") {
             flags |= 1 << 13;
             table(value, buf)?;
         }
-        if let Some(ShortShortUInt(value)) = header.property_fields.get("delivery-mode") {
+        if let Some(ShortShortUInt(value)) = header.get("delivery-mode") {
             flags |= 1 << 12;
             octet(value, buf)?;
         }
-        if let Some(ShortShortUInt(value)) = header.property_fields.get("priority") {
+        if let Some(ShortShortUInt(value)) = header.get("priority") {
             flags |= 1 << 11;
             octet(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("correlation-id") {
+        if let Some(ShortString(value)) = header.get("correlation-id") {
             flags |= 1 << 10;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("reply-to") {
+        if let Some(ShortString(value)) = header.get("reply-to") {
             flags |= 1 << 9;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("expiration") {
+        if let Some(ShortString(value)) = header.get("expiration") {
             flags |= 1 << 8;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("message-id") {
+        if let Some(ShortString(value)) = header.get("message-id") {
             flags |= 1 << 7;
             shortstr(value, buf)?;
         }
-        if let Some(Timestamp(value)) = header.property_fields.get("timestamp") {
+        if let Some(Timestamp(value)) = header.get("timestamp") {
             flags |= 1 << 6;
             timestamp(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("type") {
+        if let Some(ShortString(value)) = header.get("type") {
             flags |= 1 << 5;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("user-id") {
+        if let Some(ShortString(value)) = header.get("user-id") {
             flags |= 1 << 4;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("app-id") {
+        if let Some(ShortString(value)) = header.get("app-id") {
             flags |= 1 << 3;
             shortstr(value, buf)?;
         }
-        if let Some(ShortString(value)) = header.property_fields.get("reserved") {
+        if let Some(ShortString(value)) = header.get("reserved") {
             flags |= 1 << 2;
             shortstr(value, buf)?;
         }
@@ -210,27 +222,51 @@ mod content_header_write {
     }
 }
 
-pub fn write_content_header(buf: &mut Vec<u8>, content_header: ContentHeader) -> Result<()> {
+pub fn write_content_header(buf: &mut Vec<u8>, content_header: &ContentHeader) -> Result<()> {
-    write_content_header(buf, content_header)
+    content_header_write::write_content_header(buf, content_header)
 }
 
-pub async fn write_frame<W>(frame: &Frame, mut w: W) -> Result<()>
+#[derive(Clone, Copy)]
+pub struct MaxFrameSize(Option<NonZeroUsize>);
+
+impl MaxFrameSize {
+    pub const fn new(size: usize) -> Self {
+        Self(NonZeroUsize::new(size))
+    }
+
+    pub fn as_usize(&self) -> usize {
+        self.0.map(NonZeroUsize::get).unwrap_or(usize::MAX)
+    }
+}
+
+impl Debug for MaxFrameSize {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        self.0.fmt(f)
+    }
+}
+
+pub async fn write_frame<W>(
+    mut w: W,
+    kind: FrameType,
+    channel: ChannelNum,
+    payload: &[u8],
+) -> Result<()>
 where
     W: AsyncWriteExt + Unpin + Send,
 {
-    trace!(?frame, "Sending frame");
+    trace!(?kind, ?channel, ?payload, "Sending frame");
 
-    w.write_u8(frame.kind as u8).await?;
+    w.write_u8(kind as u8).await?;
-    w.write_u16(frame.channel.num()).await?;
+    w.write_u16(channel.num()).await?;
-    w.write_u32(u32::try_from(frame.payload.len()).context("frame size too big")?)
+    w.write_u32(u32::try_from(payload.len()).context("frame size too big")?)
         .await?;
-    w.write_all(&frame.payload).await?;
+    w.write_all(payload).await?;
     w.write_u8(REQUIRED_FRAME_END).await?;
 
     Ok(())
 }
 
-pub async fn read_frame<R>(r: &mut R, max_frame_size: usize) -> Result<Frame>
+pub async fn read_frame<R>(r: &mut R, max_frame_size: MaxFrameSize) -> Result<Frame>
 where
     R: AsyncReadExt + Unpin + Send,
 {
@@ -248,7 +284,7 @@ where
         return Err(ProtocolError::Fatal.into());
     }
 
-    if max_frame_size != 0 && payload.len() > max_frame_size {
+    if payload.len() > max_frame_size.as_usize() {
         return Err(ConException::FrameError.into());
     }
 
@@ -283,7 +319,7 @@ fn parse_frame_type(kind: u8, channel: ChannelNum) -> Result<FrameType> {
 
 #[cfg(test)]
 mod tests {
-    use crate::frame::{ChannelNum, Frame, FrameType};
+    use crate::frame::{ChannelNum, Frame, FrameType, MaxFrameSize};
     use bytes::Bytes;
 
     #[tokio::test]
@@ -307,7 +343,9 @@ mod tests {
             super::REQUIRED_FRAME_END,
         ];
 
-        let frame = super::read_frame(&mut bytes, 10000).await.unwrap();
+        let frame = super::read_frame(&mut bytes, MaxFrameSize::new(10000))
+            .await
+            .unwrap();
         assert_eq!(
             frame,
             Frame {

amqp_transport/src/lib.rs

@@ -12,11 +12,10 @@ mod tests;
 
 use crate::connection::TransportConnection;
 use amqp_core::GlobalData;
-use anyhow::Result;
 use tokio::net;
 use tracing::{info, info_span, Instrument};
 
-pub async fn do_thing_i_guess(global_data: GlobalData) -> Result<()> {
+pub async fn do_thing_i_guess(global_data: GlobalData) -> anyhow::Result<()> {
     info!("Binding TCP listener...");
     let listener = net::TcpListener::bind(("127.0.0.1", 5672)).await?;
     info!(addr = ?listener.local_addr()?, "Successfully bound TCP listener");