feat: support users to customize download ua

component/http/http.go

@@ -10,14 +10,12 @@ import (
 	"time"
 
 	"github.com/Dreamacro/clash/component/tls"
+	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/listener/inner"
 )
 
-const (
-	UA = "clash.meta"
-)
-
 func HttpRequest(ctx context.Context, url, method string, header map[string][]string, body io.Reader) (*http.Response, error) {
+	UA := C.UA
 	method = strings.ToUpper(method)
 	urlRes, err := URL.Parse(url)
 	if err != nil {

config/config.go

@@ -60,6 +60,7 @@ type General struct {
 	Sniffing                bool              `json:"sniffing"`
 	EBpf                    EBpf              `json:"-"`
 	GlobalClientFingerprint string            `json:"global-client-fingerprint"`
+	GlobalUA                string            `json:"global-ua"`
 	KeepAliveInterval       int               `json:"keep-alive-interval"`
 }
 
@@ -284,6 +285,7 @@ type RawConfig struct {
 	TCPConcurrent           bool              `yaml:"tcp-concurrent" json:"tcp-concurrent"`
 	FindProcessMode         P.FindProcessMode `yaml:"find-process-mode" json:"find-process-mode"`
 	GlobalClientFingerprint string            `yaml:"global-client-fingerprint"`
+	GlobalUA                string            `yaml:"global-ua"`
 	KeepAliveInterval       int               `yaml:"keep-alive-interval"`
 
 	Sniffer       RawSniffer                `yaml:"sniffer"`
@@ -370,6 +372,7 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
 		ProxyGroup:      []map[string]any{},
 		TCPConcurrent:   false,
 		FindProcessMode: P.FindProcessStrict,
+		GlobalUA:        "clash.meta",
 		Tun: RawTun{
 			Enable:              false,
 			Device:              "",
@@ -571,6 +574,7 @@ func parseGeneral(cfg *RawConfig) (*General, error) {
 	C.GeoSiteUrl = cfg.GeoXUrl.GeoSite
 	C.MmdbUrl = cfg.GeoXUrl.Mmdb
 	C.GeodataMode = cfg.GeodataMode
+	C.UA = cfg.GlobalUA
 	if cfg.KeepAliveInterval != 0 {
 		N.KeepAliveInterval = time.Duration(cfg.KeepAliveInterval) * time.Second
 	}
@@ -617,6 +621,7 @@ func parseGeneral(cfg *RawConfig) (*General, error) {
 		FindProcessMode:         cfg.FindProcessMode,
 		EBpf:                    cfg.EBpf,
 		GlobalClientFingerprint: cfg.GlobalClientFingerprint,
+		GlobalUA:                cfg.GlobalUA,
 		KeepAliveInterval:       cfg.KeepAliveInterval,
 	}, nil
 }

constant/http.go

@@ -0,0 +1,5 @@
+package constant
+
+var (
+	UA string
+)