Remove license globals entirely (#8229)

* remove license globals entirely

* fix infinite recursion

* test fix

app/license_test.go

@@ -4,8 +4,9 @@
 package app
 
 import (
-	//"github.com/mattermost/mattermost-server/model"
 	"testing"
+
+	"github.com/mattermost/mattermost-server/model"
 )
 
 func TestLoadLicense(t *testing.T) {
@@ -37,3 +38,75 @@ func TestRemoveLicense(t *testing.T) {
 		t.Fatal("should have removed license")
 	}
 }
+
+func TestSetLicense(t *testing.T) {
+	th := Setup()
+	defer th.TearDown()
+
+	l1 := &model.License{}
+	l1.Features = &model.Features{}
+	l1.Customer = &model.Customer{}
+	l1.StartsAt = model.GetMillis() - 1000
+	l1.ExpiresAt = model.GetMillis() + 100000
+	if ok := th.App.SetLicense(l1); !ok {
+		t.Fatal("license should have worked")
+	}
+
+	l2 := &model.License{}
+	l2.Features = &model.Features{}
+	l2.Customer = &model.Customer{}
+	l2.StartsAt = model.GetMillis() - 1000
+	l2.ExpiresAt = model.GetMillis() - 100
+	if ok := th.App.SetLicense(l2); ok {
+		t.Fatal("license should have failed")
+	}
+
+	l3 := &model.License{}
+	l3.Features = &model.Features{}
+	l3.Customer = &model.Customer{}
+	l3.StartsAt = model.GetMillis() + 10000
+	l3.ExpiresAt = model.GetMillis() + 100000
+	if ok := th.App.SetLicense(l3); !ok {
+		t.Fatal("license should have passed")
+	}
+}
+
+func TestClientLicenseEtag(t *testing.T) {
+	th := Setup()
+	defer th.TearDown()
+
+	etag1 := th.App.GetClientLicenseEtag(false)
+
+	th.App.SetClientLicense(map[string]string{"SomeFeature": "true", "IsLicensed": "true"})
+
+	etag2 := th.App.GetClientLicenseEtag(false)
+	if etag1 == etag2 {
+		t.Fatal("etags should not match")
+	}
+
+	th.App.SetClientLicense(map[string]string{"SomeFeature": "true", "IsLicensed": "false"})
+
+	etag3 := th.App.GetClientLicenseEtag(false)
+	if etag2 == etag3 {
+		t.Fatal("etags should not match")
+	}
+}
+
+func TestGetSanitizedClientLicense(t *testing.T) {
+	th := Setup()
+	defer th.TearDown()
+
+	l1 := &model.License{}
+	l1.Features = &model.Features{}
+	l1.Customer = &model.Customer{}
+	l1.Customer.Name = "TestName"
+	l1.StartsAt = model.GetMillis() - 1000
+	l1.ExpiresAt = model.GetMillis() + 100000
+	th.App.SetLicense(l1)
+
+	m := th.App.GetSanitizedClientLicense()
+
+	if _, ok := m["Name"]; ok {
+		t.Fatal("should have been sanatized")
+	}
+}