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			96 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			96 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2015 Matthew Holt and The Caddy Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//     http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package fileserver
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import (
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	"net/url"
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	"testing"
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)
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func TestSanitizedPathJoin(t *testing.T) {
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	// For easy reference:
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	// %2E = .
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	// %2F = /
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	// %5C = \
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	for i, tc := range []struct {
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		inputRoot string
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		inputPath string
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		expect    string
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	}{
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		{
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			inputPath: "",
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			expect:    ".",
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		},
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		{
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			inputPath: "/",
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			expect:    ".",
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		},
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		{
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			inputPath: "/foo",
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			expect:    "foo",
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		},
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		{
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			inputPath: "/foo/bar",
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			expect:    "foo/bar",
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		},
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		{
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			inputRoot: "/a",
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			inputPath: "/foo/bar",
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			expect:    "/a/foo/bar",
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		},
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		{
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			inputPath: "/foo/../bar",
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			expect:    "bar",
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		},
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		{
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			inputRoot: "/a/b",
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			inputPath: "/foo/../bar",
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			expect:    "/a/b/bar",
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		},
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		{
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			inputRoot: "/a/b",
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			inputPath: "/..%2fbar",
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			expect:    "/a/b/bar",
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		},
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		{
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			inputRoot: "/a/b",
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			inputPath: "/%2e%2e%2fbar",
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			expect:    "/a/b/bar",
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		},
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		{
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			inputRoot: "/a/b",
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			inputPath: "/%2e%2e%2f%2e%2e%2f",
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			expect:    "/a/b",
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		},
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		// TODO: test windows paths... on windows... sigh.
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	} {
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		// we don't *need* to use an actual parsed URL, but it
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		// adds some authenticity to the tests since real-world
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		// values will be coming in from URLs; thus, the test
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		// corpus can contain paths as encoded by clients, which
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		// more closely emulates the actual attack vector
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		u, err := url.Parse("http://test:9999" + tc.inputPath)
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		if err != nil {
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			t.Fatalf("Test %d: invalid URL: %v", i, err)
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		}
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		actual := sanitizedPathJoin(tc.inputRoot, u.Path)
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		if actual != tc.expect {
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			t.Errorf("Test %d: [%s %s] => %s (expected %s)", i, tc.inputRoot, tc.inputPath, actual, tc.expect)
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		}
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	}
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}
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// TODO: test fileHidden
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