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|
package caddyhttp
import (
"net/url"
"path/filepath"
"testing"
)
func TestSanitizedPathJoin(t *testing.T) {
// For reference:
// %2e = .
// %2f = /
// %5c = \
for i, tc := range []struct {
inputRoot string
inputPath string
expect string
}{
{
inputPath: "",
expect: ".",
},
{
inputPath: "/",
expect: ".",
},
{
inputPath: "/foo",
expect: "foo",
},
{
inputPath: "/foo/",
expect: "foo" + separator,
},
{
inputPath: "/foo/bar",
expect: filepath.Join("foo", "bar"),
},
{
inputRoot: "/a",
inputPath: "/foo/bar",
expect: filepath.Join("/", "a", "foo", "bar"),
},
{
inputPath: "/foo/../bar",
expect: "bar",
},
{
inputRoot: "/a/b",
inputPath: "/foo/../bar",
expect: filepath.Join("/", "a", "b", "bar"),
},
{
inputRoot: "/a/b",
inputPath: "/..%2fbar",
expect: filepath.Join("/", "a", "b", "bar"),
},
{
inputRoot: "/a/b",
inputPath: "/%2e%2e%2fbar",
expect: filepath.Join("/", "a", "b", "bar"),
},
{
inputRoot: "/a/b",
inputPath: "/%2e%2e%2f%2e%2e%2f",
expect: filepath.Join("/", "a", "b") + separator,
},
{
inputRoot: "C:\\www",
inputPath: "/foo/bar",
expect: filepath.Join("C:\\www", "foo", "bar"),
},
{
inputRoot: "C:\\www",
inputPath: "/D:\\foo\\bar",
expect: filepath.Join("C:\\www", "D:\\foo\\bar"),
},
} {
// we don't *need* to use an actual parsed URL, but it
// adds some authenticity to the tests since real-world
// values will be coming in from URLs; thus, the test
// corpus can contain paths as encoded by clients, which
// more closely emulates the actual attack vector
u, err := url.Parse("http://test:9999" + tc.inputPath)
if err != nil {
t.Fatalf("Test %d: invalid URL: %v", i, err)
}
actual := SanitizedPathJoin(tc.inputRoot, u.Path)
if actual != tc.expect {
t.Errorf("Test %d: SanitizedPathJoin('%s', '%s') => %s (expected '%s')",
i, tc.inputRoot, tc.inputPath, actual, tc.expect)
}
}
}
|
