fix and recompile

imap.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/emersion/go-imap"
 	"github.com/emersion/go-imap/client"
+	"github.com/emersion/go-sasl"
 	"github.com/sirupsen/logrus"
 	bolt "go.etcd.io/bbolt"
 )
@@ -43,20 +44,37 @@ func parseIMAPURL(rawURL string) (*IMAPConfig, error) {
 	}
 
 	password, _ := u.User.Password()
+	// URL decode the password to handle special characters
+	if password != "" {
+		if decodedPassword, err := url.QueryUnescape(password); err == nil {
+			password = decodedPassword
+		}
+	}
+
+	username := u.User.Username()
+	// URL decode the username to handle special characters
+	if username != "" {
+		if decodedUsername, err := url.QueryUnescape(username); err == nil {
+			username = decodedUsername
+		}
+	}
 
 	return &IMAPConfig{
 		Host:     u.Hostname(),
 		Port:     port,
-		Username: u.User.Username(),
+		Username: username,
 		Password: password,
 		UseTLS:   port == 993 || u.Scheme == "imaps",
 	}, nil
 }
 
-// connectIMAP creates IMAP client connection
 func connectIMAP(cfg *IMAPConfig, insecure bool) (*client.Client, error) {
 	addr := fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)
 
+	// Debug logging (mask password for security)
+	maskedPassword := strings.Repeat("*", len(cfg.Password))
+	logrus.Debugf("Connecting to %s with username: %s, password: %s", addr, cfg.Username, maskedPassword)
+
 	var c *client.Client
 	var err error
 
@@ -74,9 +92,34 @@ func connectIMAP(cfg *IMAPConfig, insecure bool) (*client.Client, error) {
 		return nil, fmt.Errorf("dial failed: %w", err)
 	}
 
+	// Check server capabilities first
+	caps, errCaps := c.Capability()
+	if errCaps != nil {
+		logrus.Debugf("Failed to get capabilities: %v", errCaps)
+		caps = make(map[string]bool) // fallback to empty map
+	} else {
+		logrus.Debugf("Server capabilities: %v", caps)
+	}
+
+	// Try LOGIN first
 	if err := c.Login(cfg.Username, cfg.Password); err != nil {
-		c.Close()
-		return nil, fmt.Errorf("login failed: %w", err)
+		logrus.Debugf("LOGIN failed: %v", err)
+
+		// Try AUTHENTICATE PLAIN as fallback
+		if caps["AUTH=PLAIN"] || caps["AUTH=PLAIN-CLIENT-FIRST"] {
+			logrus.Debugf("Trying AUTHENTICATE PLAIN")
+			auth := sasl.NewPlainClient("", cfg.Username, cfg.Password)
+			if authErr := c.Authenticate(auth); authErr != nil {
+				c.Close()
+				return nil, fmt.Errorf("login failed: %w (also tried AUTHENTICATE PLAIN: %v)", err, authErr)
+			}
+			logrus.Debugf("AUTHENTICATE PLAIN succeeded")
+		} else {
+			c.Close()
+			return nil, fmt.Errorf("login failed: %w", err)
+		}
+	} else {
+		logrus.Debugf("LOGIN succeeded")
 	}
 
 	logrus.Infof("Connected to %s as %s", addr, cfg.Username)