feat(subsonic): ping.view + getLicense.view handlers

internal/subsonic/handlers.go

@@ -0,0 +1,34 @@
+package subsonic
+
+import (
+	"encoding/xml"
+	"net/http"
+)
+
+// PingResponse is envelope-only; clients treat any ok response as success.
+type PingResponse struct {
+	Envelope
+}
+
+func handlePing(w http.ResponseWriter, r *http.Request) {
+	Write(w, r, PingResponse{Envelope: NewEnvelope("ok")})
+}
+
+// LicenseResponse reports the (always-valid) self-hosted license. Many
+// Subsonic clients refuse to stream until this endpoint returns valid=true.
+type LicenseResponse struct {
+	Envelope
+	License License `json:"license" xml:"license"`
+}
+
+type License struct {
+	XMLName xml.Name `json:"-" xml:"license"`
+	Valid   bool     `json:"valid" xml:"valid,attr"`
+}
+
+func handleGetLicense(w http.ResponseWriter, r *http.Request) {
+	Write(w, r, LicenseResponse{
+		Envelope: NewEnvelope("ok"),
+		License:  License{Valid: true},
+	})
+}