feat: v0.4.1 (#34)

* feat: socket moved to its own GenServer

* feat: frame validation GOAWAY errors WIP

New Connection.Processor module to validate frames, acting on them if
valid.

Also: Ping now has :stream_id

* feat: set max initial window size and max frame size

Also, various refactorings.

* fix: dont accidentally send 0-size WINDOW_UPDATE

It's a PROTOCOL_ERROR

* fix: respect remote flow control window

WINDOW_UPDATES were blowing past the max limit for servers that enforce
it (APNS).

Also: Connection.FlowControl can now queue a list of requests, and
process them recursively.

* refactor: cleanup to increase test coverage

* fix: process GOAWAY immediately (and send one back)

Proper thing to do on recv of GOAWAY.

* fix: dont auto-stop Kadabra.Connection

On recv of GOAWAY, error, etc, wait for Supervisor to stop it by
spawning a task.

Might present issues on received stream frames that get processed before
the kill. Will need to implement some sort of graceful shutdown.

* refactor: remove StreamSupervisor

Makes more sense to just link streams to Connection and remove them from
flow control as they stop. Will be useful for detecting crashed streams
and handling accordingly.

* refactor: remove registry tuples for Stream

No longer needed!

* refactor: removed Stream.FlowControl dependencies

It now acts more like a data chunker that respects a given
configuration. Stream is now responsible for popping off the :out_queue
and sending the appropriate DATA frames.

* fix: differentiate local and remote settings

* refactor: reduce Stream dependencies

* refactor: HEADERS frame implements Encodable

* refactor: remove various module dependencies

* refactor: remove Socket depdency on Frame

* refactor: StreamSet

Currently held within Connection.FlowControl-- needs to be broken out.
Will allow Stream.FlowControl and Connection.FlowControl to become
effectively the same when refactored properly.

* fix: send WINDOW_UPDATE on stream even with full conn

* test: increase test coverage

* chore: prepare for v0.4.1 release

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## v0.4.1
+- Send exactly number of allowed bytes on initial connection WINDOW_UPDATE
+- Default settings use maximum values for MAX_FRAME_SIZE and INITIAL_WINDOW_SIZE
+- Incoming PING and WINDOW_UPDATE frames are now validated, closing the
+  connection if an error is encountered
+- Fixed: can no longer accidentally send 0-size WINDOW_UPDATE frames
+- Fixed: don't send WINDOW_UPDATE frames larger than remote server's available
+  connection flow window
+
 ## v0.4.0
 - Support for `http` URIs
 - Requests are now buffered with GenStage

lib/config.ex

@@ -6,6 +6,7 @@ defmodule Kadabra.Config do
             ref: nil,
             uri: nil,
             socket: nil,
+            queue: nil,
             opts: []
 
   @type t :: %__MODULE__{