initial import of thirdParty route support

pkg/api/api.go

@@ -185,5 +185,7 @@ func Register(r *macaron.Macaron) {
 	// rendering
 	r.Get("/render/*", reqSignedIn, RenderToPng)
 
+	InitThirdPartyRoutes(r)
+
 	r.NotFound(NotFoundHandler)
 }

pkg/api/index.go

@@ -3,6 +3,7 @@ package api
 import (
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/middleware"
+	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/grafana/grafana/pkg/setting"
 )
 
@@ -51,6 +52,25 @@ func setIndexViewData(c *middleware.Context) error {
 	if setting.GoogleTagManagerId != "" {
 		c.Data["GoogleTagManagerId"] = setting.GoogleTagManagerId
 	}
+	// This can be loaded from the DB/file to allow 3rdParty integration
+	thirdPartyJs := make([]string, 0)
+	thirdPartyCss := make([]string, 0)
+	thirdPartyMenu := make([]*plugins.ThirdPartyMenuItem, 0)
+	for _, integration := range plugins.Integrations {
+		for _, js := range integration.Js {
+			thirdPartyJs = append(thirdPartyJs, js.Src)
+		}
+		for _, css := range integration.Css {
+			thirdPartyCss = append(thirdPartyCss, css.Href)
+		}
+		for _, item := range integration.MenuItems {
+			thirdPartyMenu = append(thirdPartyMenu, item)
+		}
+
+	}
+	c.Data["ThirdPartyJs"] = thirdPartyJs
+	c.Data["ThirdPartyCss"] = thirdPartyCss
+	c.Data["ThirdPartyMenu"] = thirdPartyMenu
 
 	return nil
 }

pkg/api/thirdparty.go

@@ -0,0 +1,75 @@
+package api
+
+import (
+	"encoding/json"
+	"github.com/Unknwon/macaron"
+	"github.com/grafana/grafana/pkg/middleware"
+	"github.com/grafana/grafana/pkg/plugins"
+	"github.com/grafana/grafana/pkg/util"
+	"log"
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+)
+
+func InitThirdPartyRoutes(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 _, integration := range plugins.Integrations {
+		log.Printf("adding routes for integration")
+		for _, route := range integration.Routes {
+			log.Printf("adding route %s %s", route.Method, route.Path)
+			r.Route(util.JoinUrlFragments("/thirdparty/", route.Path), route.Method, ThirdParty(route.Url))
+		}
+	}
+}
+
+func ThirdParty(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, "Not found", err)
+			return
+		}
+		log.Printf(string(ctx))
+		targetUrl, _ := url.Parse(routeUrl)
+		proxy := NewThirdPartyProxy(string(ctx), path, targetUrl)
+		proxy.Transport = dataProxyTransport
+		proxy.ServeHTTP(c.RW(), c.Req.Request)
+	}
+}
+
+func NewThirdPartyProxy(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}
+}