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-rw-r--r--src/net/http/transfer_test.go363
1 files changed, 363 insertions, 0 deletions
diff --git a/src/net/http/transfer_test.go b/src/net/http/transfer_test.go
new file mode 100644
index 0000000..f0c28b2
--- /dev/null
+++ b/src/net/http/transfer_test.go
@@ -0,0 +1,363 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package http
+
+import (
+ "bufio"
+ "bytes"
+ "crypto/rand"
+ "fmt"
+ "io"
+ "os"
+ "reflect"
+ "strings"
+ "testing"
+)
+
+func TestBodyReadBadTrailer(t *testing.T) {
+ b := &body{
+ src: strings.NewReader("foobar"),
+ hdr: true, // force reading the trailer
+ r: bufio.NewReader(strings.NewReader("")),
+ }
+ buf := make([]byte, 7)
+ n, err := b.Read(buf[:3])
+ got := string(buf[:n])
+ if got != "foo" || err != nil {
+ t.Fatalf(`first Read = %d (%q), %v; want 3 ("foo")`, n, got, err)
+ }
+
+ n, err = b.Read(buf[:])
+ got = string(buf[:n])
+ if got != "bar" || err != nil {
+ t.Fatalf(`second Read = %d (%q), %v; want 3 ("bar")`, n, got, err)
+ }
+
+ n, err = b.Read(buf[:])
+ got = string(buf[:n])
+ if err == nil {
+ t.Errorf("final Read was successful (%q), expected error from trailer read", got)
+ }
+}
+
+func TestFinalChunkedBodyReadEOF(t *testing.T) {
+ res, err := ReadResponse(bufio.NewReader(strings.NewReader(
+ "HTTP/1.1 200 OK\r\n"+
+ "Transfer-Encoding: chunked\r\n"+
+ "\r\n"+
+ "0a\r\n"+
+ "Body here\n\r\n"+
+ "09\r\n"+
+ "continued\r\n"+
+ "0\r\n"+
+ "\r\n")), nil)
+ if err != nil {
+ t.Fatal(err)
+ }
+ want := "Body here\ncontinued"
+ buf := make([]byte, len(want))
+ n, err := res.Body.Read(buf)
+ if n != len(want) || err != io.EOF {
+ t.Logf("body = %#v", res.Body)
+ t.Errorf("Read = %v, %v; want %d, EOF", n, err, len(want))
+ }
+ if string(buf) != want {
+ t.Errorf("buf = %q; want %q", buf, want)
+ }
+}
+
+func TestDetectInMemoryReaders(t *testing.T) {
+ pr, _ := io.Pipe()
+ tests := []struct {
+ r io.Reader
+ want bool
+ }{
+ {pr, false},
+
+ {bytes.NewReader(nil), true},
+ {bytes.NewBuffer(nil), true},
+ {strings.NewReader(""), true},
+
+ {io.NopCloser(pr), false},
+
+ {io.NopCloser(bytes.NewReader(nil)), true},
+ {io.NopCloser(bytes.NewBuffer(nil)), true},
+ {io.NopCloser(strings.NewReader("")), true},
+ }
+ for i, tt := range tests {
+ got := isKnownInMemoryReader(tt.r)
+ if got != tt.want {
+ t.Errorf("%d: got = %v; want %v", i, got, tt.want)
+ }
+ }
+}
+
+type mockTransferWriter struct {
+ CalledReader io.Reader
+ WriteCalled bool
+}
+
+var _ io.ReaderFrom = (*mockTransferWriter)(nil)
+
+func (w *mockTransferWriter) ReadFrom(r io.Reader) (int64, error) {
+ w.CalledReader = r
+ return io.Copy(io.Discard, r)
+}
+
+func (w *mockTransferWriter) Write(p []byte) (int, error) {
+ w.WriteCalled = true
+ return io.Discard.Write(p)
+}
+
+func TestTransferWriterWriteBodyReaderTypes(t *testing.T) {
+ fileType := reflect.TypeOf(&os.File{})
+ bufferType := reflect.TypeOf(&bytes.Buffer{})
+
+ nBytes := int64(1 << 10)
+ newFileFunc := func() (r io.Reader, done func(), err error) {
+ f, err := os.CreateTemp("", "net-http-newfilefunc")
+ if err != nil {
+ return nil, nil, err
+ }
+
+ // Write some bytes to the file to enable reading.
+ if _, err := io.CopyN(f, rand.Reader, nBytes); err != nil {
+ return nil, nil, fmt.Errorf("failed to write data to file: %v", err)
+ }
+ if _, err := f.Seek(0, 0); err != nil {
+ return nil, nil, fmt.Errorf("failed to seek to front: %v", err)
+ }
+
+ done = func() {
+ f.Close()
+ os.Remove(f.Name())
+ }
+
+ return f, done, nil
+ }
+
+ newBufferFunc := func() (io.Reader, func(), error) {
+ return bytes.NewBuffer(make([]byte, nBytes)), func() {}, nil
+ }
+
+ cases := []struct {
+ name string
+ bodyFunc func() (io.Reader, func(), error)
+ method string
+ contentLength int64
+ transferEncoding []string
+ limitedReader bool
+ expectedReader reflect.Type
+ expectedWrite bool
+ }{
+ {
+ name: "file, non-chunked, size set",
+ bodyFunc: newFileFunc,
+ method: "PUT",
+ contentLength: nBytes,
+ limitedReader: true,
+ expectedReader: fileType,
+ },
+ {
+ name: "file, non-chunked, size set, nopCloser wrapped",
+ method: "PUT",
+ bodyFunc: func() (io.Reader, func(), error) {
+ r, cleanup, err := newFileFunc()
+ return io.NopCloser(r), cleanup, err
+ },
+ contentLength: nBytes,
+ limitedReader: true,
+ expectedReader: fileType,
+ },
+ {
+ name: "file, non-chunked, negative size",
+ method: "PUT",
+ bodyFunc: newFileFunc,
+ contentLength: -1,
+ expectedReader: fileType,
+ },
+ {
+ name: "file, non-chunked, CONNECT, negative size",
+ method: "CONNECT",
+ bodyFunc: newFileFunc,
+ contentLength: -1,
+ expectedReader: fileType,
+ },
+ {
+ name: "file, chunked",
+ method: "PUT",
+ bodyFunc: newFileFunc,
+ transferEncoding: []string{"chunked"},
+ expectedWrite: true,
+ },
+ {
+ name: "buffer, non-chunked, size set",
+ bodyFunc: newBufferFunc,
+ method: "PUT",
+ contentLength: nBytes,
+ limitedReader: true,
+ expectedReader: bufferType,
+ },
+ {
+ name: "buffer, non-chunked, size set, nopCloser wrapped",
+ method: "PUT",
+ bodyFunc: func() (io.Reader, func(), error) {
+ r, cleanup, err := newBufferFunc()
+ return io.NopCloser(r), cleanup, err
+ },
+ contentLength: nBytes,
+ limitedReader: true,
+ expectedReader: bufferType,
+ },
+ {
+ name: "buffer, non-chunked, negative size",
+ method: "PUT",
+ bodyFunc: newBufferFunc,
+ contentLength: -1,
+ expectedWrite: true,
+ },
+ {
+ name: "buffer, non-chunked, CONNECT, negative size",
+ method: "CONNECT",
+ bodyFunc: newBufferFunc,
+ contentLength: -1,
+ expectedWrite: true,
+ },
+ {
+ name: "buffer, chunked",
+ method: "PUT",
+ bodyFunc: newBufferFunc,
+ transferEncoding: []string{"chunked"},
+ expectedWrite: true,
+ },
+ }
+
+ for _, tc := range cases {
+ t.Run(tc.name, func(t *testing.T) {
+ body, cleanup, err := tc.bodyFunc()
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer cleanup()
+
+ mw := &mockTransferWriter{}
+ tw := &transferWriter{
+ Body: body,
+ ContentLength: tc.contentLength,
+ TransferEncoding: tc.transferEncoding,
+ }
+
+ if err := tw.writeBody(mw); err != nil {
+ t.Fatal(err)
+ }
+
+ if tc.expectedReader != nil {
+ if mw.CalledReader == nil {
+ t.Fatal("did not call ReadFrom")
+ }
+
+ var actualReader reflect.Type
+ lr, ok := mw.CalledReader.(*io.LimitedReader)
+ if ok && tc.limitedReader {
+ actualReader = reflect.TypeOf(lr.R)
+ } else {
+ actualReader = reflect.TypeOf(mw.CalledReader)
+ }
+
+ if tc.expectedReader != actualReader {
+ t.Fatalf("got reader %T want %T", actualReader, tc.expectedReader)
+ }
+ }
+
+ if tc.expectedWrite && !mw.WriteCalled {
+ t.Fatal("did not invoke Write")
+ }
+ })
+ }
+}
+
+func TestParseTransferEncoding(t *testing.T) {
+ tests := []struct {
+ hdr Header
+ wantErr error
+ }{
+ {
+ hdr: Header{"Transfer-Encoding": {"fugazi"}},
+ wantErr: &unsupportedTEError{`unsupported transfer encoding: "fugazi"`},
+ },
+ {
+ hdr: Header{"Transfer-Encoding": {"chunked, chunked", "identity", "chunked"}},
+ wantErr: &unsupportedTEError{`too many transfer encodings: ["chunked, chunked" "identity" "chunked"]`},
+ },
+ {
+ hdr: Header{"Transfer-Encoding": {""}},
+ wantErr: &unsupportedTEError{`unsupported transfer encoding: ""`},
+ },
+ {
+ hdr: Header{"Transfer-Encoding": {"chunked, identity"}},
+ wantErr: &unsupportedTEError{`unsupported transfer encoding: "chunked, identity"`},
+ },
+ {
+ hdr: Header{"Transfer-Encoding": {"chunked", "identity"}},
+ wantErr: &unsupportedTEError{`too many transfer encodings: ["chunked" "identity"]`},
+ },
+ {
+ hdr: Header{"Transfer-Encoding": {"\x0bchunked"}},
+ wantErr: &unsupportedTEError{`unsupported transfer encoding: "\vchunked"`},
+ },
+ {
+ hdr: Header{"Transfer-Encoding": {"chunked"}},
+ wantErr: nil,
+ },
+ }
+
+ for i, tt := range tests {
+ tr := &transferReader{
+ Header: tt.hdr,
+ ProtoMajor: 1,
+ ProtoMinor: 1,
+ }
+ gotErr := tr.parseTransferEncoding()
+ if !reflect.DeepEqual(gotErr, tt.wantErr) {
+ t.Errorf("%d.\ngot error:\n%v\nwant error:\n%v\n\n", i, gotErr, tt.wantErr)
+ }
+ }
+}
+
+// issue 39017 - disallow Content-Length values such as "+3"
+func TestParseContentLength(t *testing.T) {
+ tests := []struct {
+ cl string
+ wantErr error
+ }{
+ {
+ cl: "3",
+ wantErr: nil,
+ },
+ {
+ cl: "+3",
+ wantErr: badStringError("bad Content-Length", "+3"),
+ },
+ {
+ cl: "-3",
+ wantErr: badStringError("bad Content-Length", "-3"),
+ },
+ {
+ // max int64, for safe conversion before returning
+ cl: "9223372036854775807",
+ wantErr: nil,
+ },
+ {
+ cl: "9223372036854775808",
+ wantErr: badStringError("bad Content-Length", "9223372036854775808"),
+ },
+ }
+
+ for _, tt := range tests {
+ if _, gotErr := parseContentLength(tt.cl); !reflect.DeepEqual(gotErr, tt.wantErr) {
+ t.Errorf("%q:\n\tgot=%v\n\twant=%v", tt.cl, gotErr, tt.wantErr)
+ }
+ }
+}
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