refer to plugins are ExternalPlugin instead of thirdParty

pkg/api/externalplugin.go

@@ -0,0 +1,74 @@
+package api
+
+import (
+	"encoding/json"
+	"github.com/Unknwon/macaron"
+	"github.com/grafana/grafana/pkg/log"
+	"github.com/grafana/grafana/pkg/middleware"
+	"github.com/grafana/grafana/pkg/plugins"
+	"github.com/grafana/grafana/pkg/util"
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+)
+
+func InitExternalPluginRoutes(r *macaron.Macaron) {
+	/*
+		// Handle Auth and role requirements
+		if route.ReqSignedIn {
+			c.Invoke(middleware.Auth(&middleware.AuthOptions{ReqSignedIn: true}))
+		}
+		if route.ReqGrafanaAdmin {
+			c.Invoke(middleware.Auth(&middleware.AuthOptions{ReqSignedIn: true, ReqGrafanaAdmin: true}))
+		}
+		if route.ReqRole != nil {
+			if *route.ReqRole == m.ROLE_EDITOR {
+				c.Invoke(middleware.RoleAuth(m.ROLE_EDITOR, m.ROLE_ADMIN))
+			}
+			if *route.ReqRole == m.ROLE_ADMIN {
+				c.Invoke(middleware.RoleAuth(m.ROLE_ADMIN))
+			}
+		}
+	*/
+	for _, plugin := range plugins.ExternalPlugins {
+		log.Info("adding routes for external plugin")
+		for _, route := range plugin.Settings.Routes {
+			log.Info("adding route %s /plugins%s", route.Method, route.Path)
+			r.Route(util.JoinUrlFragments("/plugins/", route.Path), route.Method, ExternalPlugin(route.Url))
+		}
+	}
+}
+
+func ExternalPlugin(routeUrl string) macaron.Handler {
+	return func(c *middleware.Context) {
+		path := c.Params("*")
+
+		//Create a HTTP header with the context in it.
+		ctx, err := json.Marshal(c.SignedInUser)
+		if err != nil {
+			c.JsonApiErr(500, "failed to marshal context to json.", err)
+			return
+		}
+		targetUrl, _ := url.Parse(routeUrl)
+		proxy := NewExternalPluginProxy(string(ctx), path, targetUrl)
+		proxy.Transport = dataProxyTransport
+		proxy.ServeHTTP(c.RW(), c.Req.Request)
+	}
+}
+
+func NewExternalPluginProxy(ctx string, proxyPath string, targetUrl *url.URL) *httputil.ReverseProxy {
+	director := func(req *http.Request) {
+		req.URL.Scheme = targetUrl.Scheme
+		req.URL.Host = targetUrl.Host
+		req.Host = targetUrl.Host
+
+		req.URL.Path = util.JoinUrlFragments(targetUrl.Path, proxyPath)
+
+		// clear cookie headers
+		req.Header.Del("Cookie")
+		req.Header.Del("Set-Cookie")
+		req.Header.Add("Grafana-Context", ctx)
+	}
+
+	return &httputil.ReverseProxy{Director: director}
+}