traefik/pkg/types/domains.go

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package types
import (
"strings"
)
// +k8s:deepcopy-gen=true
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// Domain holds a domain name with SANs.
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type Domain struct {
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Main string `description:"Default subject name." json:"main,omitempty" toml:"main,omitempty" yaml:"main,omitempty"`
SANs []string `description:"Subject alternative names." json:"sans,omitempty" toml:"sans,omitempty" yaml:"sans,omitempty"`
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}
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// ToStrArray convert a domain into an array of strings.
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func (d *Domain) ToStrArray() []string {
var domains []string
if len(d.Main) > 0 {
domains = []string{d.Main}
}
return append(domains, d.SANs...)
}
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// Set sets a domains from an array of strings.
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func (d *Domain) Set(domains []string) {
if len(domains) > 0 {
d.Main = domains[0]
d.SANs = domains[1:]
}
}
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// MatchDomain returns true if a domain match the cert domain.
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func MatchDomain(domain string, certDomain string) bool {
if domain == certDomain {
return true
}
for len(certDomain) > 0 && certDomain[len(certDomain)-1] == '.' {
certDomain = certDomain[:len(certDomain)-1]
}
labels := strings.Split(domain, ".")
for i := range labels {
labels[i] = "*"
candidate := strings.Join(labels, ".")
if certDomain == candidate {
return true
}
}
return false
}
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// CanonicalDomain returns a lower case domain with trim space.
func CanonicalDomain(domain string) string {
return strings.ToLower(strings.TrimSpace(domain))
}