fix: loosen agent version checking

- warn instead of error when version mismatch
- check for major version only
- better version parsing

internal/api/handler.go

@@ -14,6 +14,7 @@ import (
 	"github.com/yusing/go-proxy/internal/metrics/uptime"
 	"github.com/yusing/go-proxy/internal/net/gphttp/httpheaders"
 	"github.com/yusing/go-proxy/internal/utils/strutils"
+	"github.com/yusing/go-proxy/pkg"
 )
 
 type (
@@ -65,7 +66,7 @@ func (mux ServeMux) HandleFunc(methods, endpoint string, h any, requireAuth ...b
 func NewHandler(cfg config.ConfigInstance) http.Handler {
 	mux := ServeMux{http.NewServeMux(), cfg}
 	mux.HandleFunc("GET", "/v1", v1.Index)
-	mux.HandleFunc("GET", "/v1/version", v1.GetVersion)
+	mux.HandleFunc("GET", "/v1/version", pkg.GetVersionHTTPHandler())
 
 	mux.HandleFunc("GET", "/v1/stats", v1.Stats, true)
 	mux.HandleFunc("POST", "/v1/reload", v1.Reload, true)

internal/api/v1/version.go

@@ -1,12 +0,0 @@
-package v1
-
-import (
-	"net/http"
-
-	"github.com/yusing/go-proxy/internal/net/gphttp"
-	"github.com/yusing/go-proxy/pkg"
-)
-
-func GetVersion(w http.ResponseWriter, r *http.Request) {
-	gphttp.WriteBody(w, []byte(pkg.GetVersion()))
-}

internal/watcher/health/monitor/http.go

@@ -53,7 +53,7 @@ func (mon *HTTPHealthMonitor) CheckHealth() (result *health.HealthCheckResult, e
 	}
 	req.Close = true
 	req.Header.Set("Connection", "close")
-	req.Header.Set("User-Agent", "GoDoxy/"+pkg.GetVersion())
+	req.Header.Set("User-Agent", "GoDoxy/"+pkg.GetVersion().String())
 
 	start := time.Now()
 	resp, respErr := pinger.Do(req)