Supporting json output (except for errors)

api/base_api_controller.go

@@ -0,0 +1,51 @@
+package api
+
+import (
+	"github.com/astaxie/beego"
+	"github.com/deluan/gosonic/api/responses"
+	"fmt"
+"encoding/xml"
+)
+
+type BaseAPIController struct{ beego.Controller }
+
+func (c *BaseAPIController) NewEmpty() responses.Subsonic {
+	return responses.Subsonic{Status: "ok", Version: beego.AppConfig.String("apiVersion")}
+}
+
+func (c *BaseAPIController) SendError(errorCode int, message ...interface{}) {
+	response := responses.Subsonic{Version: beego.AppConfig.String("apiVersion"), Status: "fail"}
+	var msg string
+	if (len(message) == 0) {
+		msg = responses.ErrorMsg(errorCode)
+	} else {
+		msg = fmt.Sprintf(message[0].(string), message[1:len(message)]...)
+	}
+	response.Error = &responses.Error{Code: errorCode, Message: msg}
+
+	xmlBody, _ := xml.Marshal(&response)
+	c.CustomAbort(200, xml.Header + string(xmlBody))
+}
+
+func (c *BaseAPIController) prepResponse(response responses.Subsonic) interface{} {
+	f := c.GetString("f")
+	if f == "json" {
+		type jsonWrapper struct{ Subsonic responses.Subsonic `json:"subsonic-response"` }
+		return jsonWrapper{Subsonic: response}
+	}
+	return response
+}
+
+func (c *BaseAPIController) SendResponse(response responses.Subsonic) {
+	f := c.GetString("f")
+	if f == "json" {
+		type jsonWrapper struct{ Subsonic responses.Subsonic `json:"subsonic-response"` }
+		w := &jsonWrapper{Subsonic: response}
+		c.Data["json"] = &w
+		c.ServeJSON()
+	} else {
+		c.Data["xml"] = &response
+		c.ServeXML()
+	}
+}
+