forked from useflyent/fhttp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
sniff_test.go
298 lines (267 loc) · 10.1 KB
/
sniff_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http_test
import (
"bytes"
"fmt"
"io"
"log"
"reflect"
"strconv"
"strings"
"testing"
. "github.com/dteh/fhttp"
)
var sniffTests = []struct {
desc string
data []byte
contentType string
}{
// Some nonsense.
{"Empty", []byte{}, "text/plain; charset=utf-8"},
{"Binary", []byte{1, 2, 3}, "application/octet-stream"},
{"HTML document #1", []byte(`<HtMl><bOdY>blah blah blah</body></html>`), "text/html; charset=utf-8"},
{"HTML document #2", []byte(`<HTML></HTML>`), "text/html; charset=utf-8"},
{"HTML document #3 (leading whitespace)", []byte(` <!DOCTYPE HTML>...`), "text/html; charset=utf-8"},
{"HTML document #4 (leading CRLF)", []byte("\r\n<html>..."), "text/html; charset=utf-8"},
{"Plain text", []byte(`This is not HTML. It has ☃ though.`), "text/plain; charset=utf-8"},
{"XML", []byte("\n<?xml!"), "text/xml; charset=utf-8"},
// Image types.
{"Windows icon", []byte("\x00\x00\x01\x00"), "image/x-icon"},
{"Windows cursor", []byte("\x00\x00\x02\x00"), "image/x-icon"},
{"BMP image", []byte("BM..."), "image/bmp"},
{"GIF 87a", []byte(`GIF87a`), "image/gif"},
{"GIF 89a", []byte(`GIF89a...`), "image/gif"},
{"WEBP image", []byte("RIFF\x00\x00\x00\x00WEBPVP"), "image/webp"},
{"PNG image", []byte("\x89PNG\x0D\x0A\x1A\x0A"), "image/png"},
{"JPEG image", []byte("\xFF\xD8\xFF"), "image/jpeg"},
// Audio types.
{"MIDI audio", []byte("MThd\x00\x00\x00\x06\x00\x01"), "audio/midi"},
{"MP3 audio/MPEG audio", []byte("ID3\x03\x00\x00\x00\x00\x0f"), "audio/mpeg"},
{"WAV audio #1", []byte("RIFFb\xb8\x00\x00WAVEfmt \x12\x00\x00\x00\x06"), "audio/wave"},
{"WAV audio #2", []byte("RIFF,\x00\x00\x00WAVEfmt \x12\x00\x00\x00\x06"), "audio/wave"},
{"AIFF audio #1", []byte("FORM\x00\x00\x00\x00AIFFCOMM\x00\x00\x00\x12\x00\x01\x00\x00\x57\x55\x00\x10\x40\x0d\xf3\x34"), "audio/aiff"},
{"OGG audio", []byte("OggS\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x7e\x46\x00\x00\x00\x00\x00\x00\x1f\xf6\xb4\xfc\x01\x1e\x01\x76\x6f\x72"), "application/ogg"},
{"Must not match OGG", []byte("owow\x00"), "application/octet-stream"},
{"Must not match OGG", []byte("oooS\x00"), "application/octet-stream"},
{"Must not match OGG", []byte("oggS\x00"), "application/octet-stream"},
// Video types.
{"MP4 video", []byte("\x00\x00\x00\x18ftypmp42\x00\x00\x00\x00mp42isom<\x06t\xbfmdat"), "video/mp4"},
{"AVI video #1", []byte("RIFF,O\n\x00AVI LISTÀ"), "video/avi"},
{"AVI video #2", []byte("RIFF,\n\x00\x00AVI LISTÀ"), "video/avi"},
// Font types.
// {"MS.FontObject", []byte("\x00\x00")},
{"TTF sample I", []byte("\x00\x01\x00\x00\x00\x17\x01\x00\x00\x04\x01\x60\x4f"), "font/ttf"},
{"TTF sample II", []byte("\x00\x01\x00\x00\x00\x0e\x00\x80\x00\x03\x00\x60\x46"), "font/ttf"},
{"OTTO sample I", []byte("\x4f\x54\x54\x4f\x00\x0e\x00\x80\x00\x03\x00\x60\x42\x41\x53\x45"), "font/otf"},
{"woff sample I", []byte("\x77\x4f\x46\x46\x00\x01\x00\x00\x00\x00\x30\x54\x00\x0d\x00\x00"), "font/woff"},
{"woff2 sample", []byte("\x77\x4f\x46\x32\x00\x01\x00\x00\x00"), "font/woff2"},
{"wasm sample", []byte("\x00\x61\x73\x6d\x01\x00"), "application/wasm"},
// Archive types
{"RAR v1.5-v4.0", []byte("Rar!\x1A\x07\x00"), "application/x-rar-compressed"},
{"RAR v5+", []byte("Rar!\x1A\x07\x01\x00"), "application/x-rar-compressed"},
{"Incorrect RAR v1.5-v4.0", []byte("Rar \x1A\x07\x00"), "application/octet-stream"},
{"Incorrect RAR v5+", []byte("Rar \x1A\x07\x01\x00"), "application/octet-stream"},
}
func TestDetectContentType(t *testing.T) {
for _, tt := range sniffTests {
ct := DetectContentType(tt.data)
if ct != tt.contentType {
t.Errorf("%v: DetectContentType = %q, want %q", tt.desc, ct, tt.contentType)
}
}
}
func TestServerContentType_h1(t *testing.T) { testServerContentType(t, h1Mode) }
func TestServerContentType_h2(t *testing.T) { testServerContentType(t, h2Mode) }
func testServerContentType(t *testing.T, h2 bool) {
setParallel(t)
defer afterTest(t)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
i, _ := strconv.Atoi(r.FormValue("i"))
tt := sniffTests[i]
n, err := w.Write(tt.data)
if n != len(tt.data) || err != nil {
log.Fatalf("%v: Write(%q) = %v, %v want %d, nil", tt.desc, tt.data, n, err, len(tt.data))
}
}))
defer cst.close()
for i, tt := range sniffTests {
resp, err := cst.c.Get(cst.ts.URL + "/?i=" + strconv.Itoa(i))
if err != nil {
t.Errorf("%v: %v", tt.desc, err)
continue
}
// DetectContentType is defined to return
// text/plain; charset=utf-8 for an empty body,
// but as of Go 1.10 the HTTP server has been changed
// to return no content-type at all for an empty body.
// Adjust the expectation here.
wantContentType := tt.contentType
if len(tt.data) == 0 {
wantContentType = ""
}
if ct := resp.Header.Get("Content-Type"); ct != wantContentType {
t.Errorf("%v: Content-Type = %q, want %q", tt.desc, ct, wantContentType)
}
data, err := io.ReadAll(resp.Body)
if err != nil {
t.Errorf("%v: reading body: %v", tt.desc, err)
} else if !bytes.Equal(data, tt.data) {
t.Errorf("%v: data is %q, want %q", tt.desc, data, tt.data)
}
resp.Body.Close()
}
}
// Issue 5953: shouldn't sniff if the handler set a Content-Type header,
// even if it's the empty string.
func TestServerIssue5953_h1(t *testing.T) { testServerIssue5953(t, h1Mode) }
func TestServerIssue5953_h2(t *testing.T) { testServerIssue5953(t, h2Mode) }
func testServerIssue5953(t *testing.T, h2 bool) {
defer afterTest(t)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
w.Header()["Content-Type"] = []string{""}
fmt.Fprintf(w, "<html><head></head><body>hi</body></html>")
}))
defer cst.close()
resp, err := cst.c.Get(cst.ts.URL)
if err != nil {
t.Fatal(err)
}
got := resp.Header["Content-Type"]
want := []string{""}
if !reflect.DeepEqual(got, want) {
t.Errorf("Content-Type = %q; want %q", got, want)
}
resp.Body.Close()
}
type byteAtATimeReader struct {
buf []byte
}
func (b *byteAtATimeReader) Read(p []byte) (n int, err error) {
if len(p) < 1 {
return 0, nil
}
if len(b.buf) == 0 {
return 0, io.EOF
}
p[0] = b.buf[0]
b.buf = b.buf[1:]
return 1, nil
}
func TestContentTypeWithVariousSources_h1(t *testing.T) { testContentTypeWithVariousSources(t, h1Mode) }
func TestContentTypeWithVariousSources_h2(t *testing.T) { testContentTypeWithVariousSources(t, h2Mode) }
func testContentTypeWithVariousSources(t *testing.T, h2 bool) {
defer afterTest(t)
const (
input = "\n<html>\n\t<head>\n"
expected = "text/html; charset=utf-8"
)
for _, test := range []struct {
name string
handler func(ResponseWriter, *Request)
}{{
name: "write",
handler: func(w ResponseWriter, r *Request) {
// Write the whole input at once.
n, err := w.Write([]byte(input))
if int(n) != len(input) || err != nil {
t.Errorf("w.Write(%q) = %v, %v want %d, nil", input, n, err, len(input))
}
},
}, {
name: "write one byte at a time",
handler: func(w ResponseWriter, r *Request) {
// Write the input one byte at a time.
buf := []byte(input)
for i := range buf {
n, err := w.Write(buf[i : i+1])
if n != 1 || err != nil {
t.Errorf("w.Write(%q) = %v, %v want 1, nil", input, n, err)
}
}
},
}, {
name: "copy from Reader",
handler: func(w ResponseWriter, r *Request) {
// Use io.Copy from a plain Reader.
type readerOnly struct{ io.Reader }
buf := bytes.NewBuffer([]byte(input))
n, err := io.Copy(w, readerOnly{buf})
if int(n) != len(input) || err != nil {
t.Errorf("io.Copy(w, %q) = %v, %v want %d, nil", input, n, err, len(input))
}
},
}, {
name: "copy from bytes.Buffer",
handler: func(w ResponseWriter, r *Request) {
// Use io.Copy from a bytes.Buffer to trigger ReadFrom.
buf := bytes.NewBuffer([]byte(input))
n, err := io.Copy(w, buf)
if int(n) != len(input) || err != nil {
t.Errorf("io.Copy(w, %q) = %v, %v want %d, nil", input, n, err, len(input))
}
},
}, {
name: "copy one byte at a time",
handler: func(w ResponseWriter, r *Request) {
// Use io.Copy from a Reader that returns one byte at a time.
n, err := io.Copy(w, &byteAtATimeReader{[]byte(input)})
if int(n) != len(input) || err != nil {
t.Errorf("io.Copy(w, %q) = %v, %v want %d, nil", input, n, err, len(input))
}
},
}} {
t.Run(test.name, func(t *testing.T) {
cst := newClientServerTest(t, h2, HandlerFunc(test.handler))
defer cst.close()
resp, err := cst.c.Get(cst.ts.URL)
if err != nil {
t.Fatalf("Get: %v", err)
}
if ct := resp.Header.Get("Content-Type"); ct != expected {
t.Errorf("Content-Type = %q, want %q", ct, expected)
}
if want, got := resp.Header.Get("Content-Length"), fmt.Sprint(len(input)); want != got {
t.Errorf("Content-Length = %q, want %q", want, got)
}
data, err := io.ReadAll(resp.Body)
if err != nil {
t.Errorf("reading body: %v", err)
} else if !bytes.Equal(data, []byte(input)) {
t.Errorf("data is %q, want %q", data, input)
}
resp.Body.Close()
})
}
}
func TestSniffWriteSize_h1(t *testing.T) { testSniffWriteSize(t, h1Mode) }
func TestSniffWriteSize_h2(t *testing.T) { testSniffWriteSize(t, h2Mode) }
func testSniffWriteSize(t *testing.T, h2 bool) {
setParallel(t)
defer afterTest(t)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
size, _ := strconv.Atoi(r.FormValue("size"))
written, err := io.WriteString(w, strings.Repeat("a", size))
if err != nil {
t.Errorf("write of %d bytes: %v", size, err)
return
}
if written != size {
t.Errorf("write of %d bytes wrote %d bytes", size, written)
}
}))
defer cst.close()
for _, size := range []int{0, 1, 200, 600, 999, 1000, 1023, 1024, 512 << 10, 1 << 20} {
res, err := cst.c.Get(fmt.Sprintf("%s/?size=%d", cst.ts.URL, size))
if err != nil {
t.Fatalf("size %d: %v", size, err)
}
if _, err := io.Copy(io.Discard, res.Body); err != nil {
t.Fatalf("size %d: io.Copy of body = %v", size, err)
}
if err := res.Body.Close(); err != nil {
t.Fatalf("size %d: body Close = %v", size, err)
}
}
}