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
|
package main
import (
"net"
"net/http/httptest"
"strings"
"testing"
)
func TestValidBranch(t *testing.T) {
for _, ok := range []string{"main", "feature/x", "v1.2", "a_b-c"} {
if !validBranch(ok) {
t.Errorf("%q rejected", ok)
}
}
for _, bad := range []string{"", "-x", "a..b", "a b", "a:b", "a~1", "a^", "x.lock", "a//b", "/a", "a/", ".a", "a/.b", "a@{1}", "@", "a\nb", "a\x00b", "a*", "a?", "a[", "a\\b"} {
if validBranch(bad) {
t.Errorf("%q accepted", bad)
}
}
}
func TestCleanPath(t *testing.T) {
cases := map[string]bool{"a/b.txt": true, "": true, "../x": false, "a/../b": false, "-rf": false, "a\nb": false, "a\x00": false, "a\tb": false, "a//b": false}
for in, want := range cases {
if _, got := cleanPath(in); got != want {
t.Errorf("cleanPath(%q) = %v", in, got)
}
}
}
func TestClientIP(t *testing.T) {
r := httptest.NewRequest("GET", "/", nil)
r.RemoteAddr = "203.0.113.9:4000"
r.Header.Set("X-Forwarded-For", "1.1.1.1")
if got := clientIP(r); got != "203.0.113.9" {
t.Errorf("direct client spoofed its address as %s", got)
}
r.RemoteAddr = "127.0.0.1:4000"
r.Header.Set("X-Forwarded-For", "6.6.6.6, 198.51.100.7")
if got := clientIP(r); got != "198.51.100.7" {
t.Errorf("proxied address %s, want the last hop", got)
}
}
func TestParseQuery(t *testing.T) {
text, quals := parseQuery(`kernel language:"Standard ML" user:~james tag:sel4`)
if text != "kernel" || quals["language"] != "Standard ML" || quals["user"] != "james" || quals["tag"] != "sel4" {
t.Errorf("got %q %v", text, quals)
}
if got := stripLanguage(`x lang:go tag:"a b"`); got != `x tag:"a b"` {
t.Errorf("stripLanguage = %q", got)
}
}
func TestBuckets(t *testing.T) {
b := newBuckets(0.001, 3)
for i := 0; i < 3; i++ {
if !b.allow("k") {
t.Fatal("burst refused early")
}
}
if b.allow("k") {
t.Error("bucket did not run dry")
}
if !b.allow("other") {
t.Error("keys are not independent")
}
}
func TestCappedBuffer(t *testing.T) {
var b cappedBuffer
if _, err := b.Write(make([]byte, maxOutput)); err != nil {
t.Fatal(err)
}
if _, err := b.Write([]byte{1}); err == nil || !b.over {
t.Error("cap not enforced")
}
}
func TestMarkdownSanitised(t *testing.T) {
s, _ := testServer(t)
for _, in := range []string{
`<script>alert(1)</script>`,
`<img src=x onerror=alert(1)>`,
`[x](javascript:alert(1))`,
`<a href="javascript:alert(1)">x</a>`,
`<video src="javascript:alert(1)"></video>`,
`<iframe src="https://evil.example"></iframe>`,
`<svg onload=alert(1)>`,
`<div style="background:url(javascript:alert(1))">x</div>`,
} {
out := strings.ToLower(string(s.renderMarkdownAt([]byte(in), "/raw/", "/tree/")))
for _, bad := range []string{"<script", "onerror", "javascript:", "<iframe", "onload", "style="} {
if strings.Contains(out, bad) {
t.Errorf("%q rendered %q", in, out)
}
}
}
}
func TestSizes(t *testing.T) {
for in, want := range map[string]int64{"2G": 2 << 30, "500M": 500 << 20, "2048 MiB": 2 << 30, "10KB": 10 << 10, "0": 0} {
if got, err := parseSize(in); err != nil || got != want {
t.Errorf("parseSize(%q) = %d %v", in, got, err)
}
}
if got := compactSize(2 << 30); got != "2G" {
t.Errorf("compactSize = %s", got)
}
}
func TestHeaderInjection(t *testing.T) {
if got := headerText("hi\r\nBcc: x@evil.example"); strings.ContainsAny(got, "\r\n") {
t.Errorf("header kept a line break: %q", got)
}
for _, bad := range []string{"a@b.c\r\nBcc: x@y.z", "a@b.c, x@y.z", "<a@b.c>", "nope", "a b@c.d"} {
if validEmail(bad) {
t.Errorf("accepted %q", bad)
}
}
if !validEmail("someone@example.org") {
t.Error("rejected a plain address")
}
}
func TestRelativeLinkBaseEscaped(t *testing.T) {
s, _ := testServer(t)
out := string(s.renderMarkdownAt([]byte(" [y](doc.md)"), `/~a/r/raw/x"onmouseover="alert(1)/`, `/~a/r/tree/x"><script>/`))
if strings.Contains(out, `"onmouseover`) || strings.Contains(out, "<script") {
t.Errorf("base broke out of the attribute: %s", out)
}
}
func TestTrustedProxy(t *testing.T) {
_, n, _ := net.ParseCIDR("172.31.255.0/28")
trustedProxies = []*net.IPNet{n}
defer func() { trustedProxies = nil }()
r := httptest.NewRequest("GET", "/", nil)
r.Header.Set("X-Forwarded-For", "203.0.113.9, 198.51.100.7")
r.RemoteAddr = "172.31.255.1:5000"
if got := clientIP(r); got != "198.51.100.7" {
t.Errorf("trusted proxy hop ignored: %s", got)
}
r.RemoteAddr = "192.0.2.4:5000"
if got := clientIP(r); got != "192.0.2.4" {
t.Errorf("untrusted peer could choose its address: %s", got)
}
}
|