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echo/middleware/cors_test.go
2020-01-25 09:48:53 -08:00

86 lines
2.9 KiB
Go

package middleware
import (
"net/http"
"net/http/httptest"
"testing"
"github.com/labstack/echo/v4"
"github.com/stretchr/testify/assert"
)
func TestCORS(t *testing.T) {
e := echo.New()
// Wildcard origin
req := httptest.NewRequest(http.MethodGet, "/", nil)
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
h := CORS()(echo.NotFoundHandler)
h(c)
assert.Equal(t, "*", rec.Header().Get(echo.HeaderAccessControlAllowOrigin))
// Allow origins
req = httptest.NewRequest(http.MethodGet, "/", nil)
rec = httptest.NewRecorder()
c = e.NewContext(req, rec)
h = CORSWithConfig(CORSConfig{
AllowOrigins: []string{"localhost"},
})(echo.NotFoundHandler)
req.Header.Set(echo.HeaderOrigin, "localhost")
h(c)
assert.Equal(t, "localhost", rec.Header().Get(echo.HeaderAccessControlAllowOrigin))
// Preflight request
req = httptest.NewRequest(http.MethodOptions, "/", nil)
rec = httptest.NewRecorder()
c = e.NewContext(req, rec)
req.Header.Set(echo.HeaderOrigin, "localhost")
req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
cors := CORSWithConfig(CORSConfig{
AllowOrigins: []string{"localhost"},
AllowCredentials: true,
MaxAge: 3600,
})
h = cors(echo.NotFoundHandler)
h(c)
assert.Equal(t, "localhost", rec.Header().Get(echo.HeaderAccessControlAllowOrigin))
assert.NotEmpty(t, rec.Header().Get(echo.HeaderAccessControlAllowMethods))
assert.Equal(t, "true", rec.Header().Get(echo.HeaderAccessControlAllowCredentials))
assert.Equal(t, "3600", rec.Header().Get(echo.HeaderAccessControlMaxAge))
// Preflight request with `AllowOrigins` *
req = httptest.NewRequest(http.MethodOptions, "/", nil)
rec = httptest.NewRecorder()
c = e.NewContext(req, rec)
req.Header.Set(echo.HeaderOrigin, "localhost")
req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
cors = CORSWithConfig(CORSConfig{
AllowOrigins: []string{"*"},
AllowCredentials: true,
MaxAge: 3600,
})
h = cors(echo.NotFoundHandler)
h(c)
assert.Equal(t, "localhost", rec.Header().Get(echo.HeaderAccessControlAllowOrigin))
assert.NotEmpty(t, rec.Header().Get(echo.HeaderAccessControlAllowMethods))
assert.Equal(t, "true", rec.Header().Get(echo.HeaderAccessControlAllowCredentials))
assert.Equal(t, "3600", rec.Header().Get(echo.HeaderAccessControlMaxAge))
// Preflight request with `AllowOrigins` which allow all subdomains with *
req = httptest.NewRequest(http.MethodOptions, "/", nil)
rec = httptest.NewRecorder()
c = e.NewContext(req, rec)
req.Header.Set(echo.HeaderOrigin, "http://aaa.example.com")
cors = CORSWithConfig(CORSConfig{
AllowOrigins: []string{"http://*.example.com"},
})
h = cors(echo.NotFoundHandler)
h(c)
assert.Equal(t, "http://aaa.example.com", rec.Header().Get(echo.HeaderAccessControlAllowOrigin))
req.Header.Set(echo.HeaderOrigin, "http://bbb.example.com")
h(c)
assert.Equal(t, "http://bbb.example.com", rec.Header().Get(echo.HeaderAccessControlAllowOrigin))
}