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
|
package proxy
import (
"bytes"
"compress/flate"
"compress/gzip"
"net/http"
"testing"
"github.com/andybalholm/brotli"
"github.com/klauspost/compress/zstd"
internalhttp "github.com/shiv/internal/http"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func decompressBody(h http.Header, body []byte) []byte { return internalhttp.Decompress(h, body) }
func isBinary(h http.Header) bool { return internalhttp.IsBinary(h) }
func stripRequestCacheHeaders(h http.Header) { internalhttp.StripRequestCacheHeaders(h) }
func stripResponseCacheHeaders(h http.Header) { internalhttp.StripResponseCacheHeaders(h) }
// ── decompressBody ────────────────────────────────────────────────────────────
func TestDecompressBody_NoEncoding(t *testing.T) {
body := []byte("plain text")
out := decompressBody(http.Header{}, body)
assert.Equal(t, body, out)
}
func TestDecompressBody_Gzip(t *testing.T) {
var buf bytes.Buffer
w := gzip.NewWriter(&buf)
_, err := w.Write([]byte("gzip content"))
require.NoError(t, err)
w.Close()
h := http.Header{"Content-Encoding": []string{"gzip"}}
out := decompressBody(h, buf.Bytes())
assert.Equal(t, "gzip content", string(out))
}
func TestDecompressBody_Gzip_CorruptData(t *testing.T) {
body := []byte("not gzip")
h := http.Header{"Content-Encoding": []string{"gzip"}}
out := decompressBody(h, body)
assert.Equal(t, body, out, "corrupt gzip should return original bytes")
}
func TestDecompressBody_Deflate(t *testing.T) {
var buf bytes.Buffer
w, err := flate.NewWriter(&buf, flate.DefaultCompression)
require.NoError(t, err)
_, err = w.Write([]byte("deflate content"))
require.NoError(t, err)
w.Close()
h := http.Header{"Content-Encoding": []string{"deflate"}}
out := decompressBody(h, buf.Bytes())
assert.Equal(t, "deflate content", string(out))
}
func TestDecompressBody_Brotli(t *testing.T) {
var buf bytes.Buffer
w := brotli.NewWriter(&buf)
_, err := w.Write([]byte("brotli content"))
require.NoError(t, err)
w.Close()
h := http.Header{"Content-Encoding": []string{"br"}}
out := decompressBody(h, buf.Bytes())
assert.Equal(t, "brotli content", string(out))
}
func TestDecompressBody_Zstd(t *testing.T) {
enc, err := zstd.NewWriter(nil)
require.NoError(t, err)
compressed := enc.EncodeAll([]byte("zstd content"), nil)
h := http.Header{"Content-Encoding": []string{"zstd"}}
out := decompressBody(h, compressed)
assert.Equal(t, "zstd content", string(out))
}
func TestDecompressBody_UnknownEncoding(t *testing.T) {
body := []byte("mystery")
h := http.Header{"Content-Encoding": []string{"identity"}}
out := decompressBody(h, body)
assert.Equal(t, body, out)
}
// ── isBinary ─────────────────────────────────────────────────────────────────
func TestIsBinary_PlainText(t *testing.T) {
h := http.Header{"Content-Type": []string{"text/plain"}}
assert.False(t, isBinary(h))
}
func TestIsBinary_HTML(t *testing.T) {
h := http.Header{"Content-Type": []string{"text/html; charset=utf-8"}}
assert.False(t, isBinary(h))
}
func TestIsBinary_JSON(t *testing.T) {
h := http.Header{"Content-Type": []string{"application/json"}}
assert.False(t, isBinary(h))
}
func TestIsBinary_XML(t *testing.T) {
h := http.Header{"Content-Type": []string{"application/xml"}}
assert.False(t, isBinary(h))
}
func TestIsBinary_JavaScript(t *testing.T) {
h := http.Header{"Content-Type": []string{"application/javascript"}}
assert.False(t, isBinary(h))
}
func TestIsBinary_FormEncoded(t *testing.T) {
h := http.Header{"Content-Type": []string{"application/x-www-form-urlencoded"}}
assert.False(t, isBinary(h))
}
func TestIsBinary_Image(t *testing.T) {
h := http.Header{"Content-Type": []string{"image/png"}}
assert.True(t, isBinary(h))
}
func TestIsBinary_OctetStream(t *testing.T) {
h := http.Header{"Content-Type": []string{"application/octet-stream"}}
assert.True(t, isBinary(h))
}
func TestIsBinary_NoContentType(t *testing.T) {
assert.False(t, isBinary(http.Header{}))
}
func TestIsBinary_ZstdEncoding(t *testing.T) {
h := http.Header{
"Content-Encoding": []string{"zstd"},
"Content-Type": []string{"text/plain"},
}
assert.False(t, isBinary(h))
}
// ── stripRequestCacheHeaders ──────────────────────────────────────────────────
func TestStripRequestCacheHeaders(t *testing.T) {
h := http.Header{
"If-None-Match": []string{`"etag123"`},
"If-Modified-Since": []string{"Mon, 01 Jan 2024 00:00:00 GMT"},
"If-Range": []string{`"etag123"`},
"If-Match": []string{`"etag123"`},
"If-Unmodified-Since": []string{"Mon, 01 Jan 2024 00:00:00 GMT"},
"Authorization": []string{"Bearer token"},
}
stripRequestCacheHeaders(h)
assert.Empty(t, h.Get("If-None-Match"))
assert.Empty(t, h.Get("If-Modified-Since"))
assert.Empty(t, h.Get("If-Range"))
assert.Empty(t, h.Get("If-Match"))
assert.Empty(t, h.Get("If-Unmodified-Since"))
assert.Equal(t, "Bearer token", h.Get("Authorization"))
}
func TestStripRequestCacheHeaders_AlreadyAbsent(t *testing.T) {
h := http.Header{"Content-Type": []string{"application/json"}}
assert.NotPanics(t, func() { stripRequestCacheHeaders(h) })
assert.Equal(t, "application/json", h.Get("Content-Type"))
}
// ── stripResponseCacheHeaders ─────────────────────────────────────────────────
func TestStripResponseCacheHeaders(t *testing.T) {
h := http.Header{
"Cache-Control": []string{"max-age=3600"},
"Expires": []string{"Mon, 01 Jan 2025 00:00:00 GMT"},
"ETag": []string{`"etag123"`},
"Last-Modified": []string{"Mon, 01 Jan 2024 00:00:00 GMT"},
"Pragma": []string{"no-cache"},
"Content-Type": []string{"text/html"},
}
stripResponseCacheHeaders(h)
assert.Equal(t, "no-store, no-cache, must-revalidate", h.Get("Cache-Control"))
assert.Empty(t, h.Get("Expires"))
assert.Empty(t, h.Get("ETag"))
assert.Empty(t, h.Get("Last-Modified"))
assert.Empty(t, h.Get("Pragma"))
assert.Equal(t, "text/html", h.Get("Content-Type"))
}
func TestStripResponseCacheHeaders_SetsNoCacheDirective(t *testing.T) {
h := http.Header{}
stripResponseCacheHeaders(h)
assert.Equal(t, "no-store, no-cache, must-revalidate", h.Get("Cache-Control"))
}
|
