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vendor: update buildkit to 2943a0838

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Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2020-09-19 22:02:46 -07:00
parent 92fb995505
commit c41b006be1
644 changed files with 62146 additions and 21194 deletions
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22
vendor/k8s.io/apimachinery/pkg/util/httpstream/httpstream.go generated vendored
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@ -114,6 +114,18 @@ func negotiateProtocol(clientProtocols, serverProtocols []string) string {
return ""
}
func commaSeparatedHeaderValues(header []string) []string {
var parsedClientProtocols []string
for i := range header {
for _, clientProtocol := range strings.Split(header[i], ",") {
if proto := strings.Trim(clientProtocol, " "); len(proto) > 0 {
parsedClientProtocols = append(parsedClientProtocols, proto)
}
}
}
return parsedClientProtocols
}
// Handshake performs a subprotocol negotiation. If the client did request a
// subprotocol, Handshake will select the first common value found in
// serverProtocols. If a match is found, Handshake adds a response header
@ -121,17 +133,13 @@ func negotiateProtocol(clientProtocols, serverProtocols []string) string {
// returned, along with a response header containing the list of protocols the
// server can accept.
func Handshake(req *http.Request, w http.ResponseWriter, serverProtocols []string) (string, error) {
clientProtocols := req.Header[http.CanonicalHeaderKey(HeaderProtocolVersion)]
clientProtocols := commaSeparatedHeaderValues(req.Header[http.CanonicalHeaderKey(HeaderProtocolVersion)])
if len(clientProtocols) == 0 {
// Kube 1.0 clients didn't support subprotocol negotiation.
// TODO require clientProtocols once Kube 1.0 is no longer supported
return "", nil
return "", fmt.Errorf("unable to upgrade: %s is required", HeaderProtocolVersion)
}
if len(serverProtocols) == 0 {
// Kube 1.0 servers didn't support subprotocol negotiation. This is mainly for testing.
// TODO require serverProtocols once Kube 1.0 is no longer supported
return "", nil
panic(fmt.Errorf("unable to upgrade: serverProtocols is required"))
}
negotiatedProtocol := negotiateProtocol(clientProtocols, serverProtocols)