mirror of
https://github.com/labstack/echo.git
synced 2024-12-16 10:29:24 +02:00
265 lines
7.8 KiB
Go
265 lines
7.8 KiB
Go
// SPDX-License-Identifier: MIT
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// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
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package middleware
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import (
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"io"
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"net/http"
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"net/http/httptest"
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"net/url"
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"regexp"
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"testing"
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"github.com/labstack/echo/v4"
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"github.com/stretchr/testify/assert"
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)
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func TestRewriteAfterRouting(t *testing.T) {
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e := echo.New()
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// middlewares added with `Use()` are executed after routing is done and do not affect which route handler is matched
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e.Use(RewriteWithConfig(RewriteConfig{
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Rules: map[string]string{
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"/old": "/new",
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"/api/*": "/$1",
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"/js/*": "/public/javascripts/$1",
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"/users/*/orders/*": "/user/$1/order/$2",
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},
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}))
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e.GET("/public/*", func(c echo.Context) error {
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return c.String(http.StatusOK, c.Param("*"))
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})
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e.GET("/*", func(c echo.Context) error {
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return c.String(http.StatusOK, c.Param("*"))
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})
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var testCases = []struct {
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whenPath string
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expectRoutePath string
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expectRequestPath string
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expectRequestRawPath string
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}{
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{
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whenPath: "/api/users",
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expectRoutePath: "api/users",
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expectRequestPath: "/users",
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expectRequestRawPath: "",
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},
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{
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whenPath: "/js/main.js",
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expectRoutePath: "js/main.js",
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expectRequestPath: "/public/javascripts/main.js",
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expectRequestRawPath: "",
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},
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{
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whenPath: "/users/jack/orders/1",
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expectRoutePath: "users/jack/orders/1",
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expectRequestPath: "/user/jack/order/1",
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expectRequestRawPath: "",
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},
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{ // no rewrite rule matched. already encoded URL should not be double encoded or changed in any way
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whenPath: "/user/jill/order/T%2FcO4lW%2Ft%2FVp%2F",
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expectRoutePath: "user/jill/order/T%2FcO4lW%2Ft%2FVp%2F",
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expectRequestPath: "/user/jill/order/T/cO4lW/t/Vp/", // this is equal to `url.Parse(tc.whenPath)` result
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expectRequestRawPath: "/user/jill/order/T%2FcO4lW%2Ft%2FVp%2F",
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},
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{ // just rewrite but do not touch encoding. already encoded URL should not be double encoded
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whenPath: "/users/jill/orders/T%2FcO4lW%2Ft%2FVp%2F",
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expectRoutePath: "users/jill/orders/T%2FcO4lW%2Ft%2FVp%2F",
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expectRequestPath: "/user/jill/order/T/cO4lW/t/Vp/", // this is equal to `url.Parse(tc.whenPath)` result
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expectRequestRawPath: "/user/jill/order/T%2FcO4lW%2Ft%2FVp%2F",
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},
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{ // ` ` (space) is encoded by httpClient to `%20` when doing request to Echo. `%20` should not be double escaped or changed in any way when rewriting request
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whenPath: "/api/new users",
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expectRoutePath: "api/new users",
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expectRequestPath: "/new users",
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expectRequestRawPath: "",
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},
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}
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for _, tc := range testCases {
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t.Run(tc.whenPath, func(t *testing.T) {
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target, _ := url.Parse(tc.whenPath)
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req := httptest.NewRequest(http.MethodGet, target.String(), nil)
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rec := httptest.NewRecorder()
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e.ServeHTTP(rec, req)
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assert.Equal(t, http.StatusOK, rec.Code)
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assert.Equal(t, tc.expectRoutePath, rec.Body.String())
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assert.Equal(t, tc.expectRequestPath, req.URL.Path)
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assert.Equal(t, tc.expectRequestRawPath, req.URL.RawPath)
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})
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}
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}
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// Issue #1086
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func TestEchoRewritePreMiddleware(t *testing.T) {
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e := echo.New()
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r := e.Router()
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// Rewrite old url to new one
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// middlewares added with `Pre()` are executed before routing is done and therefore change which handler matches
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e.Pre(Rewrite(map[string]string{
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"/old": "/new",
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},
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))
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// Route
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r.Add(http.MethodGet, "/new", func(c echo.Context) error {
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return c.NoContent(http.StatusOK)
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})
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req := httptest.NewRequest(http.MethodGet, "/old", nil)
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rec := httptest.NewRecorder()
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e.ServeHTTP(rec, req)
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assert.Equal(t, "/new", req.URL.EscapedPath())
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assert.Equal(t, http.StatusOK, rec.Code)
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}
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// Issue #1143
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func TestRewriteWithConfigPreMiddleware_Issue1143(t *testing.T) {
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e := echo.New()
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r := e.Router()
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// middlewares added with `Pre()` are executed before routing is done and therefore change which handler matches
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e.Pre(RewriteWithConfig(RewriteConfig{
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Rules: map[string]string{
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"/api/*/mgmt/proj/*/agt": "/api/$1/hosts/$2",
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"/api/*/mgmt/proj": "/api/$1/eng",
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},
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}))
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r.Add(http.MethodGet, "/api/:version/hosts/:name", func(c echo.Context) error {
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return c.String(http.StatusOK, "hosts")
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})
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r.Add(http.MethodGet, "/api/:version/eng", func(c echo.Context) error {
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return c.String(http.StatusOK, "eng")
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})
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for i := 0; i < 100; i++ {
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req := httptest.NewRequest(http.MethodGet, "/api/v1/mgmt/proj/test/agt", nil)
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rec := httptest.NewRecorder()
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e.ServeHTTP(rec, req)
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assert.Equal(t, "/api/v1/hosts/test", req.URL.EscapedPath())
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assert.Equal(t, http.StatusOK, rec.Code)
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defer rec.Result().Body.Close()
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bodyBytes, _ := io.ReadAll(rec.Result().Body)
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assert.Equal(t, "hosts", string(bodyBytes))
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}
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}
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// Issue #1573
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func TestEchoRewriteWithCaret(t *testing.T) {
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e := echo.New()
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e.Pre(RewriteWithConfig(RewriteConfig{
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Rules: map[string]string{
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"^/abc/*": "/v1/abc/$1",
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},
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}))
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rec := httptest.NewRecorder()
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var req *http.Request
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req = httptest.NewRequest(http.MethodGet, "/abc/test", nil)
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e.ServeHTTP(rec, req)
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assert.Equal(t, "/v1/abc/test", req.URL.Path)
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req = httptest.NewRequest(http.MethodGet, "/v1/abc/test", nil)
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e.ServeHTTP(rec, req)
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assert.Equal(t, "/v1/abc/test", req.URL.Path)
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req = httptest.NewRequest(http.MethodGet, "/v2/abc/test", nil)
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e.ServeHTTP(rec, req)
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assert.Equal(t, "/v2/abc/test", req.URL.Path)
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}
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// Verify regex used with rewrite
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func TestEchoRewriteWithRegexRules(t *testing.T) {
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e := echo.New()
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e.Pre(RewriteWithConfig(RewriteConfig{
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Rules: map[string]string{
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"^/a/*": "/v1/$1",
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"^/b/*/c/*": "/v2/$2/$1",
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"^/c/*/*": "/v3/$2",
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},
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RegexRules: map[*regexp.Regexp]string{
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regexp.MustCompile("^/x/.+?/(.*)"): "/v4/$1",
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regexp.MustCompile("^/y/(.+?)/(.*)"): "/v5/$2/$1",
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},
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}))
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var rec *httptest.ResponseRecorder
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var req *http.Request
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testCases := []struct {
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requestPath string
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expectPath string
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}{
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{"/unmatched", "/unmatched"},
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{"/a/test", "/v1/test"},
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{"/b/foo/c/bar/baz", "/v2/bar/baz/foo"},
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{"/c/ignore/test", "/v3/test"},
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{"/c/ignore1/test/this", "/v3/test/this"},
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{"/x/ignore/test", "/v4/test"},
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{"/y/foo/bar", "/v5/bar/foo"},
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}
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for _, tc := range testCases {
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t.Run(tc.requestPath, func(t *testing.T) {
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req = httptest.NewRequest(http.MethodGet, tc.requestPath, nil)
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rec = httptest.NewRecorder()
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e.ServeHTTP(rec, req)
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assert.Equal(t, tc.expectPath, req.URL.EscapedPath())
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})
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}
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}
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// Ensure correct escaping as defined in replacement (issue #1798)
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func TestEchoRewriteReplacementEscaping(t *testing.T) {
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e := echo.New()
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// NOTE: these are incorrect regexps as they do not factor in that URI we are replacing could contain ? (query) and # (fragment) parts
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// so in reality they append query and fragment part as `$1` matches everything after that prefix
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e.Pre(RewriteWithConfig(RewriteConfig{
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Rules: map[string]string{
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"^/a/*": "/$1?query=param",
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"^/b/*": "/$1;part#one",
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},
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RegexRules: map[*regexp.Regexp]string{
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regexp.MustCompile("^/x/(.*)"): "/$1?query=param",
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regexp.MustCompile("^/y/(.*)"): "/$1;part#one",
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regexp.MustCompile("^/z/(.*)"): "/$1?test=1#escaped%20test",
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},
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}))
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var rec *httptest.ResponseRecorder
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var req *http.Request
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testCases := []struct {
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requestPath string
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expect string
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}{
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{"/unmatched", "/unmatched"},
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{"/a/test", "/test?query=param"},
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{"/b/foo/bar", "/foo/bar;part#one"},
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{"/x/test", "/test?query=param"},
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{"/y/foo/bar", "/foo/bar;part#one"},
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{"/z/foo/b%20ar", "/foo/b%20ar?test=1#escaped%20test"},
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{"/z/foo/b%20ar?nope=1#yes", "/foo/b%20ar?nope=1#yes?test=1%23escaped%20test"}, // example of appending
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}
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for _, tc := range testCases {
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t.Run(tc.requestPath, func(t *testing.T) {
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req = httptest.NewRequest(http.MethodGet, tc.requestPath, nil)
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rec = httptest.NewRecorder()
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e.ServeHTTP(rec, req)
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assert.Equal(t, tc.expect, req.URL.String())
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})
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}
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}
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