hysteria: also accept "hysteria2" protocol string

UI stores v1 and v2 both as "hysteria" with settings.version, but
inbounds that came in from imports / manual SQL can carry the
literal "hysteria2" string and get silently dropped everywhere we
switch on protocol.

Add Hysteria2 constant + IsHysteria helper, use it in the places
that gate on protocol (sub SQL, getLink, genHysteriaLink, clash
buildProxy, json gen, inbound.go validation, xray AddUser).

Existing "hysteria" inbounds are untouched.

closes #4081

1 files changed, 4 insertions, 4 deletions

diff --git a/web/service/inbound.go b/web/service/inbound.go
index 5153b700..19c3d80c 100644
--- a/web/service/inbound.go
+++ b/web/service/inbound.go
@@ -270,7 +270,7 @@ func (s *InboundService) AddInbound(inbound *model.Inbound) (*model.Inbound, boo
 			if client.Email == "" {
 				return inbound, false, common.NewError("empty client ID")
 			}
-		case "hysteria":
+		case "hysteria", "hysteria2":
 			if client.Auth == "" {
 				return inbound, false, common.NewError("empty client ID")
 			}
@@ -675,7 +675,7 @@ func (s *InboundService) AddInboundClient(data *model.Inbound) (bool, error) {
 			if client.Email == "" {
 				return false, common.NewError("empty client ID")
 			}
-		case "hysteria":
+		case "hysteria", "hysteria2":
 			if client.Auth == "" {
 				return false, common.NewError("empty client ID")
 			}
@@ -769,7 +769,7 @@ func (s *InboundService) DelInboundClient(inboundId int, clientId string) (bool,
 		client_key = "password"
 	case "shadowsocks":
 		client_key = "email"
-	case "hysteria":
+	case "hysteria", "hysteria2":
 		client_key = "auth"
 	}
 
@@ -877,7 +877,7 @@ func (s *InboundService) UpdateInboundClient(data *model.Inbound, clientId strin
 		case "shadowsocks":
 			oldClientId = oldClient.Email
 			newClientId = clients[0].Email
-		case "hysteria":
+		case "hysteria", "hysteria2":
 			oldClientId = oldClient.Auth
 			newClientId = clients[0].Auth
 		default: