1 files changed, 94 insertions, 0 deletions
diff --git a/tests/integration/cors_test.go b/tests/integration/cors_test.go
new file mode 100644
index 0000000..25dfbab
--- /dev/null
+++ b/tests/integration/cors_test.go
@@ -0,0 +1,94 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"net/http"
+	"testing"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+	"code.gitea.io/gitea/routers"
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCORS(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+	t.Run("CORS enabled", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.CORSConfig.Enabled, true)()
+		defer test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())()
+
+		t.Run("API with CORS", func(t *testing.T) {
+			// GET api with no CORS header
+			req := NewRequest(t, "GET", "/api/v1/version")
+			resp := MakeRequest(t, req, http.StatusOK)
+			assert.Empty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.Contains(t, resp.Header().Values("Vary"), "Origin")
+
+			// OPTIONS api for CORS
+			req = NewRequest(t, "OPTIONS", "/api/v1/version").
+				SetHeader("Origin", "https://example.com").
+				SetHeader("Access-Control-Request-Method", "GET")
+			resp = MakeRequest(t, req, http.StatusOK)
+			assert.NotEmpty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.Contains(t, resp.Header().Values("Vary"), "Origin")
+		})
+
+		t.Run("Web with CORS", func(t *testing.T) {
+			// GET userinfo with no CORS header
+			req := NewRequest(t, "GET", "/login/oauth/userinfo")
+			resp := MakeRequest(t, req, http.StatusUnauthorized)
+			assert.Empty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.Contains(t, resp.Header().Values("Vary"), "Origin")
+
+			// OPTIONS userinfo for CORS
+			req = NewRequest(t, "OPTIONS", "/login/oauth/userinfo").
+				SetHeader("Origin", "https://example.com").
+				SetHeader("Access-Control-Request-Method", "GET")
+			resp = MakeRequest(t, req, http.StatusOK)
+			assert.NotEmpty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.Contains(t, resp.Header().Values("Vary"), "Origin")
+
+			// OPTIONS userinfo for non-CORS
+			req = NewRequest(t, "OPTIONS", "/login/oauth/userinfo")
+			resp = MakeRequest(t, req, http.StatusMethodNotAllowed)
+			assert.NotContains(t, resp.Header().Values("Vary"), "Origin")
+		})
+	})
+
+	t.Run("CORS disabled", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.CORSConfig.Enabled, false)()
+		defer test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())()
+
+		t.Run("API without CORS", func(t *testing.T) {
+			req := NewRequest(t, "GET", "/api/v1/version")
+			resp := MakeRequest(t, req, http.StatusOK)
+			assert.Empty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.Empty(t, resp.Header().Values("Vary"))
+
+			req = NewRequest(t, "OPTIONS", "/api/v1/version").
+				SetHeader("Origin", "https://example.com").
+				SetHeader("Access-Control-Request-Method", "GET")
+			resp = MakeRequest(t, req, http.StatusMethodNotAllowed)
+			assert.Empty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.Empty(t, resp.Header().Values("Vary"))
+		})
+
+		t.Run("Web without CORS", func(t *testing.T) {
+			req := NewRequest(t, "GET", "/login/oauth/userinfo")
+			resp := MakeRequest(t, req, http.StatusUnauthorized)
+			assert.Empty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.NotContains(t, resp.Header().Values("Vary"), "Origin")
+
+			req = NewRequest(t, "OPTIONS", "/login/oauth/userinfo").
+				SetHeader("Origin", "https://example.com").
+				SetHeader("Access-Control-Request-Method", "GET")
+			resp = MakeRequest(t, req, http.StatusMethodNotAllowed)
+			assert.Empty(t, resp.Header().Get("Access-Control-Allow-Origin"))
+			assert.NotContains(t, resp.Header().Values("Vary"), "Origin")
+		})
+	})
+}