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125 lines
3.1 KiB
Go
125 lines
3.1 KiB
Go
// +build !windows
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package hack
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import (
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"bytes"
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"io"
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"net"
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"strings"
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"testing"
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)
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type bufConn struct {
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net.Conn
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buf *bytes.Buffer
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}
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func (bc *bufConn) Read(b []byte) (int, error) {
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return bc.buf.Read(b)
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}
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func TestHeaderOverrideHack(t *testing.T) {
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tests := [][2][]byte{
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{
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[]byte("GET /foo\nHost: /var/run/docker.sock\nUser-Agent: Docker\r\n\r\n"),
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[]byte("GET /foo\nHost: \r\nConnection: close\r\nUser-Agent: Docker\r\n\r\n"),
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},
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{
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[]byte("GET /foo\nHost: /var/run/docker.sock\nUser-Agent: Docker\nFoo: Bar\r\n"),
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[]byte("GET /foo\nHost: \r\nConnection: close\r\nUser-Agent: Docker\nFoo: Bar\r\n"),
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},
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{
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[]byte("GET /foo\nHost: /var/run/docker.sock\nUser-Agent: Docker\r\n\r\ntest something!"),
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[]byte("GET /foo\nHost: \r\nConnection: close\r\nUser-Agent: Docker\r\n\r\ntest something!"),
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},
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{
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[]byte("GET /foo\nHost: /var/run/docker.sock\nUser-Agent: Docker\r\n\r\ntest something! " + strings.Repeat("test", 15000)),
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[]byte("GET /foo\nHost: \r\nConnection: close\r\nUser-Agent: Docker\r\n\r\ntest something! " + strings.Repeat("test", 15000)),
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},
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{
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[]byte("GET /foo\nFoo: Bar\nHost: /var/run/docker.sock\nUser-Agent: Docker\r\n\r\n"),
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[]byte("GET /foo\nFoo: Bar\nHost: /var/run/docker.sock\nUser-Agent: Docker\r\n\r\n"),
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},
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}
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// Test for https://github.com/docker/docker/issues/23045
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h0 := "GET /foo\nUser-Agent: Docker\r\n\r\n"
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h0 = h0 + strings.Repeat("a", 4096-len(h0)-1) + "\n"
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tests = append(tests, [2][]byte{[]byte(h0), []byte(h0)})
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for _, pair := range tests {
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read := make([]byte, 4096)
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client := &bufConn{
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buf: bytes.NewBuffer(pair[0]),
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}
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l := MalformedHostHeaderOverrideConn{client, true}
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n, err := l.Read(read)
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if err != nil && err != io.EOF {
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t.Fatalf("read: %d - %d, err: %v\n%s", n, len(pair[0]), err, string(read[:n]))
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}
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if !bytes.Equal(read[:n], pair[1][:n]) {
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t.Fatalf("\n%s\n%s\n", read[:n], pair[1][:n])
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}
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}
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}
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func BenchmarkWithHack(b *testing.B) {
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client, srv := net.Pipe()
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done := make(chan struct{})
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req := []byte("GET /foo\nHost: /var/run/docker.sock\nUser-Agent: Docker\n")
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read := make([]byte, 4096)
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b.SetBytes(int64(len(req) * 30))
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l := MalformedHostHeaderOverrideConn{client, true}
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go func() {
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for {
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if _, err := srv.Write(req); err != nil {
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srv.Close()
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break
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}
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l.first = true // make sure each subsequent run uses the hack parsing
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}
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close(done)
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}()
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for i := 0; i < b.N; i++ {
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for i := 0; i < 30; i++ {
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if n, err := l.Read(read); err != nil && err != io.EOF {
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b.Fatalf("read: %d - %d, err: %v\n%s", n, len(req), err, string(read[:n]))
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}
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}
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}
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l.Close()
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<-done
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}
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func BenchmarkNoHack(b *testing.B) {
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client, srv := net.Pipe()
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done := make(chan struct{})
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req := []byte("GET /foo\nHost: /var/run/docker.sock\nUser-Agent: Docker\n")
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read := make([]byte, 4096)
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b.SetBytes(int64(len(req) * 30))
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go func() {
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for {
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if _, err := srv.Write(req); err != nil {
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srv.Close()
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break
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}
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}
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close(done)
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}()
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for i := 0; i < b.N; i++ {
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for i := 0; i < 30; i++ {
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if _, err := client.Read(read); err != nil && err != io.EOF {
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b.Fatal(err)
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}
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}
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}
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client.Close()
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<-done
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}
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