forked from quic-go/quic-go
101 lines
3.2 KiB
Go
101 lines
3.2 KiB
Go
package wire
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import (
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"bytes"
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"io"
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"github.com/lucas-clemente/quic-go/internal/protocol"
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"github.com/lucas-clemente/quic-go/qerr"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = Describe("CONNECTION_CLOSE Frame", func() {
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Context("when parsing", func() {
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It("accepts sample frame", func() {
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data := []byte{0x2, 0x0, 0x19}
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data = append(data, encodeVarInt(0x1b)...) // reason phrase length
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data = append(data, []byte{
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'N', 'o', ' ', 'r', 'e', 'c', 'e', 'n', 't', ' ', 'n', 'e', 't', 'w', 'o', 'r', 'k', ' ', 'a', 'c', 't', 'i', 'v', 'i', 't', 'y', '.',
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}...)
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b := bytes.NewReader(data)
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frame, err := parseConnectionCloseFrame(b, versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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Expect(frame.ErrorCode).To(Equal(qerr.ErrorCode(0x19)))
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Expect(frame.ReasonPhrase).To(Equal("No recent network activity."))
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Expect(b.Len()).To(BeZero())
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})
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It("rejects long reason phrases", func() {
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data := []byte{0x2, 0xca, 0xfe}
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data = append(data, encodeVarInt(0xffff)...) // reason phrase length
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b := bytes.NewReader(data)
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_, err := parseConnectionCloseFrame(b, versionIETFFrames)
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Expect(err).To(MatchError(io.EOF))
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})
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It("errors on EOFs", func() {
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data := []byte{0x2, 0x0, 0x19}
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data = append(data, encodeVarInt(0x1b)...) // reason phrase length
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data = append(data, []byte{
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'N', 'o', ' ', 'r', 'e', 'c', 'e', 'n', 't', ' ', 'n', 'e', 't', 'w', 'o', 'r', 'k', ' ', 'a', 'c', 't', 'i', 'v', 'i', 't', 'y', '.',
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}...)
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_, err := parseConnectionCloseFrame(bytes.NewReader(data), versionIETFFrames)
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Expect(err).NotTo(HaveOccurred())
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for i := range data {
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_, err := parseConnectionCloseFrame(bytes.NewReader(data[0:i]), versionIETFFrames)
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Expect(err).To(HaveOccurred())
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}
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})
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It("parses a frame without a reason phrase", func() {
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data := []byte{0x2, 0xca, 0xfe}
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data = append(data, encodeVarInt(0)...)
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b := bytes.NewReader(data)
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frame, err := parseConnectionCloseFrame(b, versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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Expect(frame.ReasonPhrase).To(BeEmpty())
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Expect(b.Len()).To(BeZero())
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})
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})
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Context("when writing", func() {
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It("writes a frame without a ReasonPhrase", func() {
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b := &bytes.Buffer{}
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frame := &ConnectionCloseFrame{
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ErrorCode: 0xbeef,
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}
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err := frame.Write(b, versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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expected := []byte{0x2, 0xbe, 0xef}
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expected = append(expected, encodeVarInt(0)...)
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Expect(b.Bytes()).To(Equal(expected))
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})
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It("writes a frame with a ReasonPhrase", func() {
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b := &bytes.Buffer{}
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frame := &ConnectionCloseFrame{
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ErrorCode: 0xdead,
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ReasonPhrase: "foobar",
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}
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err := frame.Write(b, versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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expected := []byte{0x2, 0xde, 0xad}
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expected = append(expected, encodeVarInt(6)...)
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expected = append(expected, []byte{'f', 'o', 'o', 'b', 'a', 'r'}...)
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Expect(b.Bytes()).To(Equal(expected))
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})
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It("has proper min length", func() {
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b := &bytes.Buffer{}
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f := &ConnectionCloseFrame{
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ErrorCode: 0xcafe,
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ReasonPhrase: "foobar",
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}
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err := f.Write(b, versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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Expect(f.Length(versionIETFFrames)).To(Equal(protocol.ByteCount(b.Len())))
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})
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})
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})
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