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fix client handshake failure when the server supports unknown versions

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This commit is contained in:
Marten Seemann
2017-11-02 17:08:06 +07:00
parent 1f6f5bb736
commit 43c23ff5fa
8 changed files with 59 additions and 49 deletions
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26
internal/protocol/version_test.go
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@@ -26,7 +26,6 @@ var _ = Describe("Version", func() {
Expect(Version39.String()).To(Equal("gQUIC 39"))
Expect(VersionTLS.String()).To(ContainSubstring("TLS"))
Expect(VersionWhatever.String()).To(Equal("whatever"))
Expect(VersionUnsupported.String()).To(Equal("unsupported"))
Expect(VersionUnknown.String()).To(Equal("unknown"))
// check with unsupported version numbers from the wiki
Expect(VersionNumber(0x51303039).String()).To(Equal("gQUIC 9"))
@@ -63,22 +62,31 @@ var _ = Describe("Version", func() {
It("finds the supported version", func() {
supportedVersions := []VersionNumber{1, 2, 3}
other := []VersionNumber{6, 5, 4, 3}
Expect(ChooseSupportedVersion(supportedVersions, other)).To(Equal(VersionNumber(3)))
ver, ok := ChooseSupportedVersion(supportedVersions, other)
Expect(ok).To(BeTrue())
Expect(ver).To(Equal(VersionNumber(3)))
})
It("picks the preferred version", func() {
supportedVersions := []VersionNumber{2, 1, 3}
other := []VersionNumber{3, 6, 1, 8, 2, 10}
Expect(ChooseSupportedVersion(supportedVersions, other)).To(Equal(VersionNumber(2)))
ver, ok := ChooseSupportedVersion(supportedVersions, other)
Expect(ok).To(BeTrue())
Expect(ver).To(Equal(VersionNumber(2)))
})
It("says when no matching version was found", func() {
_, ok := ChooseSupportedVersion([]VersionNumber{1}, []VersionNumber{2})
Expect(ok).To(BeFalse())
})
It("handles empty inputs", func() {
supportedVersions := []VersionNumber{102, 101}
Expect(ChooseSupportedVersion(supportedVersions, nil)).To(Equal(VersionUnsupported))
Expect(ChooseSupportedVersion(supportedVersions, []VersionNumber{})).To(Equal(VersionUnsupported))
supportedVersions = []VersionNumber{}
Expect(ChooseSupportedVersion(supportedVersions, []VersionNumber{1, 2})).To(Equal(VersionUnsupported))
Expect(ChooseSupportedVersion(supportedVersions, []VersionNumber{})).To(Equal(VersionUnsupported))
_, ok := ChooseSupportedVersion([]VersionNumber{102, 101}, []VersionNumber{})
Expect(ok).To(BeFalse())
_, ok = ChooseSupportedVersion([]VersionNumber{}, []VersionNumber{1, 2})
Expect(ok).To(BeFalse())
_, ok = ChooseSupportedVersion([]VersionNumber{}, []VersionNumber{})
Expect(ok).To(BeFalse())
})
})
})