Source file
src/net/http/cgi/integration_test.go
1
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7
8
9 package cgi
10
11 import (
12 "bytes"
13 "errors"
14 "fmt"
15 "internal/testenv"
16 "io"
17 "net/http"
18 "net/http/httptest"
19 "net/url"
20 "os"
21 "strings"
22 "testing"
23 "time"
24 )
25
26
27
28 func TestHostingOurselves(t *testing.T) {
29 testenv.MustHaveExec(t)
30
31 h := &Handler{
32 Path: os.Args[0],
33 Root: "/test.go",
34 Args: []string{"-test.run=TestBeChildCGIProcess"},
35 }
36 expectedMap := map[string]string{
37 "test": "Hello CGI-in-CGI",
38 "param-a": "b",
39 "param-foo": "bar",
40 "env-GATEWAY_INTERFACE": "CGI/1.1",
41 "env-HTTP_HOST": "example.com",
42 "env-PATH_INFO": "",
43 "env-QUERY_STRING": "foo=bar&a=b",
44 "env-REMOTE_ADDR": "1.2.3.4",
45 "env-REMOTE_HOST": "1.2.3.4",
46 "env-REMOTE_PORT": "1234",
47 "env-REQUEST_METHOD": "GET",
48 "env-REQUEST_URI": "/test.go?foo=bar&a=b",
49 "env-SCRIPT_FILENAME": os.Args[0],
50 "env-SCRIPT_NAME": "/test.go",
51 "env-SERVER_NAME": "example.com",
52 "env-SERVER_PORT": "80",
53 "env-SERVER_SOFTWARE": "go",
54 }
55 replay := runCgiTest(t, h, "GET /test.go?foo=bar&a=b HTTP/1.0\nHost: example.com\n\n", expectedMap)
56
57 if expected, got := "text/plain; charset=utf-8", replay.Header().Get("Content-Type"); got != expected {
58 t.Errorf("got a Content-Type of %q; expected %q", got, expected)
59 }
60 if expected, got := "X-Test-Value", replay.Header().Get("X-Test-Header"); got != expected {
61 t.Errorf("got a X-Test-Header of %q; expected %q", got, expected)
62 }
63 }
64
65 type customWriterRecorder struct {
66 w io.Writer
67 *httptest.ResponseRecorder
68 }
69
70 func (r *customWriterRecorder) Write(p []byte) (n int, err error) {
71 return r.w.Write(p)
72 }
73
74 type limitWriter struct {
75 w io.Writer
76 n int
77 }
78
79 func (w *limitWriter) Write(p []byte) (n int, err error) {
80 if len(p) > w.n {
81 p = p[:w.n]
82 }
83 if len(p) > 0 {
84 n, err = w.w.Write(p)
85 w.n -= n
86 }
87 if w.n == 0 {
88 err = errors.New("past write limit")
89 }
90 return
91 }
92
93
94
95 func TestKillChildAfterCopyError(t *testing.T) {
96 testenv.MustHaveExec(t)
97
98 h := &Handler{
99 Path: os.Args[0],
100 Root: "/test.go",
101 Args: []string{"-test.run=TestBeChildCGIProcess"},
102 }
103 req, _ := http.NewRequest("GET", "http://example.com/test.cgi?write-forever=1", nil)
104 rec := httptest.NewRecorder()
105 var out bytes.Buffer
106 const writeLen = 50 << 10
107 rw := &customWriterRecorder{&limitWriter{&out, writeLen}, rec}
108
109 h.ServeHTTP(rw, req)
110 if out.Len() != writeLen || out.Bytes()[0] != 'a' {
111 t.Errorf("unexpected output: %q", out.Bytes())
112 }
113 }
114
115
116
117 func TestChildOnlyHeaders(t *testing.T) {
118 testenv.MustHaveExec(t)
119
120 h := &Handler{
121 Path: os.Args[0],
122 Root: "/test.go",
123 Args: []string{"-test.run=TestBeChildCGIProcess"},
124 }
125 expectedMap := map[string]string{
126 "_body": "",
127 }
128 replay := runCgiTest(t, h, "GET /test.go?no-body=1 HTTP/1.0\nHost: example.com\n\n", expectedMap)
129 if expected, got := "X-Test-Value", replay.Header().Get("X-Test-Header"); got != expected {
130 t.Errorf("got a X-Test-Header of %q; expected %q", got, expected)
131 }
132 }
133
134
135
136 func TestNilRequestBody(t *testing.T) {
137 testenv.MustHaveExec(t)
138
139 h := &Handler{
140 Path: os.Args[0],
141 Root: "/test.go",
142 Args: []string{"-test.run=TestBeChildCGIProcess"},
143 }
144 expectedMap := map[string]string{
145 "nil-request-body": "false",
146 }
147 _ = runCgiTest(t, h, "POST /test.go?nil-request-body=1 HTTP/1.0\nHost: example.com\n\n", expectedMap)
148 _ = runCgiTest(t, h, "POST /test.go?nil-request-body=1 HTTP/1.0\nHost: example.com\nContent-Length: 0\n\n", expectedMap)
149 }
150
151 func TestChildContentType(t *testing.T) {
152 testenv.MustHaveExec(t)
153
154 h := &Handler{
155 Path: os.Args[0],
156 Root: "/test.go",
157 Args: []string{"-test.run=TestBeChildCGIProcess"},
158 }
159 var tests = []struct {
160 name string
161 body string
162 wantCT string
163 }{
164 {
165 name: "no body",
166 wantCT: "text/plain; charset=utf-8",
167 },
168 {
169 name: "html",
170 body: "<html><head><title>test page</title></head><body>This is a body</body></html>",
171 wantCT: "text/html; charset=utf-8",
172 },
173 {
174 name: "text",
175 body: strings.Repeat("gopher", 86),
176 wantCT: "text/plain; charset=utf-8",
177 },
178 {
179 name: "jpg",
180 body: "\xFF\xD8\xFF" + strings.Repeat("B", 1024),
181 wantCT: "image/jpeg",
182 },
183 }
184 for _, tt := range tests {
185 t.Run(tt.name, func(t *testing.T) {
186 expectedMap := map[string]string{"_body": tt.body}
187 req := fmt.Sprintf("GET /test.go?exact-body=%s HTTP/1.0\nHost: example.com\n\n", url.QueryEscape(tt.body))
188 replay := runCgiTest(t, h, req, expectedMap)
189 if got := replay.Header().Get("Content-Type"); got != tt.wantCT {
190 t.Errorf("got a Content-Type of %q; expected it to start with %q", got, tt.wantCT)
191 }
192 })
193 }
194 }
195
196
197 func Test500WithNoHeaders(t *testing.T) { want500Test(t, "/immediate-disconnect") }
198 func Test500WithNoContentType(t *testing.T) { want500Test(t, "/no-content-type") }
199 func Test500WithEmptyHeaders(t *testing.T) { want500Test(t, "/empty-headers") }
200
201 func want500Test(t *testing.T, path string) {
202 h := &Handler{
203 Path: os.Args[0],
204 Root: "/test.go",
205 Args: []string{"-test.run=TestBeChildCGIProcess"},
206 }
207 expectedMap := map[string]string{
208 "_body": "",
209 }
210 replay := runCgiTest(t, h, "GET "+path+" HTTP/1.0\nHost: example.com\n\n", expectedMap)
211 if replay.Code != 500 {
212 t.Errorf("Got code %d; want 500", replay.Code)
213 }
214 }
215
216 type neverEnding byte
217
218 func (b neverEnding) Read(p []byte) (n int, err error) {
219 for i := range p {
220 p[i] = byte(b)
221 }
222 return len(p), nil
223 }
224
225
226 func TestBeChildCGIProcess(t *testing.T) {
227 if os.Getenv("REQUEST_METHOD") == "" {
228
229 return
230 }
231 switch os.Getenv("REQUEST_URI") {
232 case "/immediate-disconnect":
233 os.Exit(0)
234 case "/no-content-type":
235 fmt.Printf("Content-Length: 6\n\nHello\n")
236 os.Exit(0)
237 case "/empty-headers":
238 fmt.Printf("\nHello")
239 os.Exit(0)
240 }
241 Serve(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
242 if req.FormValue("nil-request-body") == "1" {
243 fmt.Fprintf(rw, "nil-request-body=%v\n", req.Body == nil)
244 return
245 }
246 rw.Header().Set("X-Test-Header", "X-Test-Value")
247 req.ParseForm()
248 if req.FormValue("no-body") == "1" {
249 return
250 }
251 if eb, ok := req.Form["exact-body"]; ok {
252 io.WriteString(rw, eb[0])
253 return
254 }
255 if req.FormValue("write-forever") == "1" {
256 io.Copy(rw, neverEnding('a'))
257 for {
258 time.Sleep(5 * time.Second)
259 }
260 }
261 fmt.Fprintf(rw, "test=Hello CGI-in-CGI\n")
262 for k, vv := range req.Form {
263 for _, v := range vv {
264 fmt.Fprintf(rw, "param-%s=%s\n", k, v)
265 }
266 }
267 for _, kv := range os.Environ() {
268 fmt.Fprintf(rw, "env-%s\n", kv)
269 }
270 }))
271 os.Exit(0)
272 }
273
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