Reconnect to IMAP server when logged out

The session manager has been upgraded to deal with reconnections.

Each session has its own expiration timer. Each time a request is
received, the expiration timer is reset.

A session can be closed (this is used when the user wants to logout).

When the IMAP connection is closed by the server, it's set to nil in the
session. The next time an IMAP command needs to be issued, the
connection is re-established.

Closes: https://todo.sr.ht/~sircmpwn/koushin/30

1 files changed, 3 insertions, 9 deletions

diff --git a/handlers.go b/handlers.go
index 869e1c1..4e127b4 100644
--- a/handlers.go
+++ b/handlers.go
@@ -81,14 +81,14 @@ func handleLogin(ectx echo.Context) error {
 	username := ctx.FormValue("username")
 	password := ctx.FormValue("password")
 	if username != "" && password != "" {
-		token, err := ctx.server.sessions.Put(username, password)
+		s, err := ctx.server.sessions.Put(username, password)
 		if err != nil {
 			if _, ok := err.(AuthError); ok {
 				return ctx.Render(http.StatusOK, "login.html", nil)
 			}
 			return fmt.Errorf("failed to put connection in pool: %v", err)
 		}
-		ctx.setToken(token)
+		ctx.setToken(s.Token)
 
 		return ctx.Redirect(http.StatusFound, "/mailbox/INBOX")
 	}
@@ -99,13 +99,7 @@ func handleLogin(ectx echo.Context) error {
 func handleLogout(ectx echo.Context) error {
 	ctx := ectx.(*context)
 
-	err := ctx.session.Do(func(c *imapclient.Client) error {
-		return c.Logout()
-	})
-	if err != nil {
-		return fmt.Errorf("failed to logout: %v", err)
-	}
-
+	ctx.session.Close()
 	ctx.setToken("")
 	return ctx.Redirect(http.StatusFound, "/login")
 }