fix: correct timeouts according to spec

pkg/pmapi/clientmanager.go

@@ -245,6 +245,10 @@ func (cm *ClientManager) switchToReachableServer() (proxy string, err error) {
 	if cm.host == rootURL {
 		go func() {
 			<-time.After(cm.proxyUseDuration)
+
+			cm.hostLocker.Lock()
+			defer cm.hostLocker.Unlock()
+
 			cm.host = rootURL
 		}()
 	}

pkg/pmapi/dialer.go

@@ -42,7 +42,7 @@ func NewBasicTLSDialer() *BasicTLSDialer {
 
 // DialTLS returns a connection to the given address using the given network.
 func (b *BasicTLSDialer) DialTLS(network, address string) (conn net.Conn, err error) {
-	dialer := &net.Dialer{Timeout: 10 * time.Second}
+	dialer := &net.Dialer{Timeout: 30 * time.Second} // Alternative Routes spec says this should be a 30s timeout.
 
 	var tlsConfig *tls.Config = nil
 

pkg/pmapi/proxy.go

@@ -30,8 +30,8 @@ import (
 
 const (
 	proxyUseDuration   = 24 * time.Hour
-	proxySearchTimeout = 30 * time.Second
+	proxySearchTimeout = 20 * time.Second
-	proxyQueryTimeout  = 10 * time.Second
+	proxyQueryTimeout  = 20 * time.Second
 	proxyLookupWait    = 5 * time.Second
 	proxyQuery         = "dMFYGSLTQOJXXI33ONVQWS3BOMNUA.protonpro.xyz"
 )
@@ -144,12 +144,12 @@ func (p *proxyProvider) canReach(url string) bool {
 		url = "https://" + url
 	}
 
-	pinningDialer := NewPinningTLSDialer(NewBasicTLSDialer())
+	dialer := NewPinningTLSDialer(NewBasicTLSDialer())
 
 	pinger := resty.New().
 		SetHostURL(url).
 		SetTimeout(p.lookupTimeout).
-		SetTransport(CreateTransportWithDialer(pinningDialer))
+		SetTransport(CreateTransportWithDialer(dialer))
 
 	if _, err := pinger.R().Get("/tests/ping"); err != nil {
 		logrus.WithField("proxy", url).WithError(err).Warn("Failed to ping proxy")