From dd0473e7cf3e059f9b21eb8213683b06f8d96113 Mon Sep 17 00:00:00 2001
From: HoneyryderChuck <cardoso_tiago@hotmail.com>
Date: Thu, 25 Jan 2024 00:05:37 +0000
Subject: [PATCH 1/2] cleanly close the connection on HTTP2 protocol error

when the HTTP/2 connection suffers an irrecovable error on the protocol level, it has to be terminated
---
 lib/httpx/connection.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/httpx/connection.rb b/lib/httpx/connection.rb
index 7c4fb102..74f1783e 100644
--- a/lib/httpx/connection.rb
+++ b/lib/httpx/connection.rb
@@ -529,7 +529,7 @@ module HTTPX
       connecting? && callbacks_for?(:connect_error) ? emit(:connect_error, error) : handle_error(error)
       @state = :closed
       emit(:close)
-    rescue TLSError => e
+    rescue TLSError, HTTP2Next::Error::ProtocolError, HTTP2Next::Error::HandshakeError => e
       # connect errors, exit gracefully
       handle_error(e)
       connecting? && callbacks_for?(:connect_error) ? emit(:connect_error, e) : handle_error(e)

From 5a08853e7ac06def7f18fc317c17ec3911e88e0a Mon Sep 17 00:00:00 2001
From: HoneyryderChuck <cardoso_tiago@hotmail.com>
Date: Thu, 25 Jan 2024 00:15:27 +0000
Subject: [PATCH 2/2] rescue from IOError and terminate the connection

contrary to what was probably assumed, IOError is not a SocketError...

Closes #295
---
 lib/httpx/connection.rb | 3 ++-
 lib/httpx/io/tcp.rb     | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/httpx/connection.rb b/lib/httpx/connection.rb
index 74f1783e..bc2b0c3e 100644
--- a/lib/httpx/connection.rb
+++ b/lib/httpx/connection.rb
@@ -522,7 +522,8 @@ module HTTPX
            Errno::ENETUNREACH,
            Errno::EPIPE,
            Errno::ENOENT,
-           SocketError => e
+           SocketError,
+           IOError => e
       # connect errors, exit gracefully
       error = ConnectionError.new(e.message)
       error.set_backtrace(e.backtrace)
diff --git a/lib/httpx/io/tcp.rb b/lib/httpx/io/tcp.rb
index ea990f6d..a16ad73a 100644
--- a/lib/httpx/io/tcp.rb
+++ b/lib/httpx/io/tcp.rb
@@ -78,7 +78,8 @@ module HTTPX
     rescue Errno::ECONNREFUSED,
            Errno::EADDRNOTAVAIL,
            Errno::EHOSTUNREACH,
-           SocketError => e
+           SocketError,
+           IOError => e
       raise e if @ip_index <= 0
 
       log { "failed connecting to #{@ip} (#{e.message}), trying next..." }