Add support for the ALL_PROXY, NO_PROXY environment variables

This adds support for SOCKS5 proxy support through standard environement
variables.

To connect to the SOCKS5 proxy at host:port with credentials user:pass,
run:

  export ALL_PROXY=socks5://user:pass@host:port

Co-authored-by: the-y <the-y@riseup.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/app.go b/app.go
index d26cf68..485521f 100644
--- a/app.go
+++ b/app.go
@@ -11,6 +11,8 @@ import (
 	"time"
 	"unicode"
 
+	"golang.org/x/net/proxy"
+
 	"git.sr.ht/~taiite/senpai/irc"
 	"git.sr.ht/~taiite/senpai/ui"
 	"github.com/gdamore/tcell/v2"
@@ -339,7 +341,7 @@ func (app *App) tryConnect() (conn net.Conn, err error) {
 		}
 	}
 
-	conn, err = net.Dial("tcp", addr)
+	conn, err = proxy.FromEnvironment().Dial("tcp", addr)
 	if err != nil {
 		return
 	}