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2e587bd6ab
Conflicts: Gopkg.lock pkg/appsrv/appsrv.go pkg/cloudcommon/options.go pkg/compute/models/hosts.go pkg/compute/models/quotas.go pkg/compute/service/service.go pkg/mcclient/mcclient.go
33 lines
786 B
Go
33 lines
786 B
Go
package missinggo
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import (
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"crypto/tls"
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"strings"
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)
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// Select the best named certificate per the usual behaviour if
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// c.GetCertificate is nil, and c.NameToCertificate is not.
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func BestNamedCertificate(c *tls.Config, clientHello *tls.ClientHelloInfo) (*tls.Certificate, bool) {
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name := strings.ToLower(clientHello.ServerName)
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for len(name) > 0 && name[len(name)-1] == '.' {
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name = name[:len(name)-1]
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}
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if cert, ok := c.NameToCertificate[name]; ok {
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return cert, true
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}
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// try replacing labels in the name with wildcards until we get a
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// match.
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labels := strings.Split(name, ".")
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for i := range labels {
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labels[i] = "*"
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candidate := strings.Join(labels, ".")
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if cert, ok := c.NameToCertificate[candidate]; ok {
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return cert, true
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}
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}
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return nil, false
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}
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