Persistent server pools (#226)

* GetAllServers with version & timestamp tests
* Storage package to sync servers
* Use storage Sync to get and use servers

internal/provider/cyberghost.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type cyberghost struct{}
+type cyberghost struct {
+	servers []models.CyberghostServer
+}
 
-func newCyberghost() *cyberghost {
-	return &cyberghost{}
+func newCyberghost(servers []models.CyberghostServer) *cyberghost {
+	return &cyberghost{
+		servers: servers,
+	}
 }
 
 func (c *cyberghost) filterServers(region, group string) (servers []models.CyberghostServer) {

internal/provider/mullvad.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type mullvad struct{}
+type mullvad struct {
+	servers []models.MullvadServer
+}
 
-func newMullvad() *mullvad {
-	return &mullvad{}
+func newMullvad(servers []models.MullvadServer) *mullvad {
+	return &mullvad{
+		servers: servers,
+	}
 }
 
 func (m *mullvad) filterServers(country, city, isp string) (servers []models.MullvadServer) {

internal/provider/nordvpn.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type nordvpn struct{}
+type nordvpn struct {
+	servers []models.NordvpnServer
+}
 
-func newNordvpn() *nordvpn {
-	return &nordvpn{}
+func newNordvpn(servers []models.NordvpnServer) *nordvpn {
+	return &nordvpn{
+		servers: servers,
+	}
 }
 
 func (n *nordvpn) filterServers(region string, protocol models.NetworkProtocol, number uint16) (servers []models.NordvpnServer) {

internal/provider/pia.go

@@ -14,12 +14,14 @@ import (
 )
 
 type pia struct {
-	random random.Random
+	random  random.Random
+	servers []models.PIAServer
 }
 
-func newPrivateInternetAccess() *pia {
+func newPrivateInternetAccess(servers []models.PIAServer) *pia {
 	return &pia{
-		random: random.NewRandom(),
+		random:  random.NewRandom(),
+		servers: servers,
 	}
 }
 

internal/provider/provider.go

@@ -13,24 +13,24 @@ type Provider interface {
 	GetPortForward(client network.Client) (port uint16, err error)
 }
 
-func New(provider models.VPNProvider) Provider {
+func New(provider models.VPNProvider, allServers models.AllServers) Provider {
 	switch provider {
 	case constants.PrivateInternetAccess:
-		return newPrivateInternetAccess()
+		return newPrivateInternetAccess(allServers.Pia.Servers)
 	case constants.Mullvad:
-		return newMullvad()
+		return newMullvad(allServers.Mullvad.Servers)
 	case constants.Windscribe:
-		return newWindscribe()
+		return newWindscribe(allServers.Windscribe.Servers)
 	case constants.Surfshark:
-		return newSurfshark()
+		return newSurfshark(allServers.Surfshark.Servers)
 	case constants.Cyberghost:
-		return newCyberghost()
+		return newCyberghost(allServers.Cyberghost.Servers)
 	case constants.Vyprvpn:
-		return newVyprvpn()
+		return newVyprvpn(allServers.Vyprvpn.Servers)
 	case constants.Nordvpn:
-		return newNordvpn()
+		return newNordvpn(allServers.Nordvpn.Servers)
 	case constants.Purevpn:
-		return newPurevpn()
+		return newPurevpn(allServers.Purevpn.Servers)
 	default:
 		return nil // should never occur
 	}

internal/provider/purevpn.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type purevpn struct{}
+type purevpn struct {
+	servers []models.PurevpnServer
+}
 
-func newPurevpn() *purevpn {
-	return &purevpn{}
+func newPurevpn(servers []models.PurevpnServer) *purevpn {
+	return &purevpn{
+		servers: servers,
+	}
 }
 
 func (p *purevpn) filterServers(region, country, city string) (servers []models.PurevpnServer) {

internal/provider/surfshark.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type surfshark struct{}
+type surfshark struct {
+	servers []models.SurfsharkServer
+}
 
-func newSurfshark() *surfshark {
-	return &surfshark{}
+func newSurfshark(servers []models.SurfsharkServer) *surfshark {
+	return &surfshark{
+		servers: servers,
+	}
 }
 
 func (s *surfshark) filterServers(region string) (servers []models.SurfsharkServer) {

internal/provider/vyprvpn.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type vyprvpn struct{}
+type vyprvpn struct {
+	servers []models.VyprvpnServer
+}
 
-func newVyprvpn() *vyprvpn {
-	return &vyprvpn{}
+func newVyprvpn(servers []models.VyprvpnServer) *vyprvpn {
+	return &vyprvpn{
+		servers: servers,
+	}
 }
 
 func (v *vyprvpn) filterServers(region string) (servers []models.VyprvpnServer) {

internal/provider/windscribe.go

@@ -9,10 +9,14 @@ import (
 	"github.com/qdm12/golibs/network"
 )
 
-type windscribe struct{}
+type windscribe struct {
+	servers []models.WindscribeServer
+}
 
-func newWindscribe() *windscribe {
-	return &windscribe{}
+func newWindscribe(servers []models.WindscribeServer) *windscribe {
+	return &windscribe{
+		servers: servers,
+	}
 }
 
 func (w *windscribe) filterServers(region string) (servers []models.WindscribeServer) {