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package main
import (
"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)
}
}
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