Security: Sync security changes on main (#45083) (#45140)

* Security: Sync security changes on main (#45083)

* * Teams: Appropriately apply user id filter in /api/teams/:id and /api/teams/search
* Teams: Ensure that users searching for teams are only able see teams they have access to
* Teams: Require teamGuardian admin privileges to list team members
* Teams: Prevent org viewers from administering teams
* Teams: Add org_id condition to team count query
* Teams: clarify permission requirements in teams api docs
* Teams: expand scenarios for team search tests
* Teams: mock teamGuardian in tests

Co-authored-by: Dan Cech <dcech@grafana.com>

* remove duplicate WHERE statement

* Fix for CVE-2022-21702

(cherry picked from commit 202d7c190082c094bc1dc13f7fe9464746c37f9e)

* Lint and test fixes

(cherry picked from commit 3e6b67d5504abf4a1d7b8d621f04d062c048e981)

* check content type properly

(cherry picked from commit 70b4458892bf2f776302720c10d24c9ff34edd98)

* basic csrf origin check

(cherry picked from commit 3adaa5ff39832364f6390881fb5b42ad47df92e1)

* compare origin to host

(cherry picked from commit 5443892699e8ed42836bb2b9a44744ff3e970f42)

* simplify url parsing

(cherry picked from commit b2ffbc9513fed75468628370a48b929d30af2b1d)

* check csrf for GET requests, only compare origin

(cherry picked from commit 8b81dc12d8f8a1f07852809c5b4d44f0f0b1d709)

* parse content type properly

(cherry picked from commit 16f76f4902e6f2188bea9606c68b551af186bdc0)

* mentioned get in the comment

(cherry picked from commit a7e61811ef8ae558ce721e2e3fed04ce7a5a5345)

* add content-type: application/json to test HTTP requests

* fix pluginproxy test

* Fix linter when comparing errors

Co-authored-by: Kevin Minehart <kmineh0151@gmail.com>
Co-authored-by: Dan Cech <dcech@grafana.com>
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
Co-authored-by: Serge Zaitsev <serge.zaitsev@grafana.com>
Co-authored-by: Vardan Torosyan <vardants@gmail.com>
(cherry picked from commit 605d056136)

* Apply suggestions from code review

* remove uneeded test fix from patch

Co-authored-by: Dimitris Sotirakis <sotirakis.dim@gmail.com>
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
Co-authored-by: jguer <joao.guerreiro@grafana.com>

pkg/api/pluginproxy/pluginproxy_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"io/ioutil"
 	"net/http"
+	"net/http/httptest"
 	"testing"
 
 	"github.com/grafana/grafana/pkg/bus"
@@ -245,6 +246,41 @@ func TestPluginProxy(t *testing.T) {
 		require.NoError(t, err)
 		require.Equal(t, `{ "url": "https://dynamic.grafana.com", "secret": "123"	}`, string(content))
 	})
+
+	t.Run("When proxying a request should set expected response headers", func(t *testing.T) {
+		requestHandled := false
+		backendServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			w.WriteHeader(200)
+			_, _ = w.Write([]byte("I am the backend"))
+			requestHandled = true
+		}))
+		t.Cleanup(backendServer.Close)
+
+		responseWriter := web.NewResponseWriter("GET", httptest.NewRecorder())
+
+		route := &plugins.Route{
+			Path: "/",
+			URL:  backendServer.URL,
+		}
+
+		ctx := &models.ReqContext{
+			SignedInUser: &models.SignedInUser{},
+			Context: &web.Context{
+				Req:  httptest.NewRequest("GET", "/", nil),
+				Resp: responseWriter,
+			},
+		}
+		proxy := NewApiPluginProxy(ctx, "", route, "", &setting.Cfg{}, secretsService)
+		proxy.ServeHTTP(ctx.Resp, ctx.Req)
+
+		for {
+			if requestHandled {
+				break
+			}
+		}
+
+		require.Equal(t, "sandbox", ctx.Resp.Header().Get("Content-Security-Policy"))
+	})
 }
 
 // getPluginProxiedRequest is a helper for easier setup of tests based on global config and ReqContext.