46 lines
1.5 KiB
Go
46 lines
1.5 KiB
Go
package etcd
|
|
|
|
import (
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/miekg/dns"
|
|
)
|
|
|
|
// Path converts a domainname to an etcd path. If s looks like service.staging.skydns.local.,
|
|
// the resulting key will be /skydns/local/skydns/staging/service .
|
|
func (e Etcd) Path(s string) string {
|
|
l := dns.SplitDomainName(s)
|
|
for i, j := 0, len(l)-1; i < j; i, j = i+1, j-1 {
|
|
l[i], l[j] = l[j], l[i]
|
|
}
|
|
return path.Join(append([]string{"/" + e.PathPrefix + "/"}, l...)...)
|
|
}
|
|
|
|
// Domain is the opposite of Path.
|
|
func (e Etcd) Domain(s string) string {
|
|
l := strings.Split(s, "/")
|
|
// start with 1, to strip /skydns
|
|
for i, j := 1, len(l)-1; i < j; i, j = i+1, j-1 {
|
|
l[i], l[j] = l[j], l[i]
|
|
}
|
|
return dns.Fqdn(strings.Join(l[1:len(l)-1], "."))
|
|
}
|
|
|
|
// As Path, but if a name contains wildcards (* or any), the name will be
|
|
// chopped of before the (first) wildcard, and we do a highler evel search and
|
|
// later find the matching names. So service.*.skydns.local, will look for all
|
|
// services under skydns.local and will later check for names that match
|
|
// service.*.skydns.local. If a wildcard is found the returned bool is true.
|
|
func (e Etcd) PathWithWildcard(s string) (string, bool) {
|
|
l := dns.SplitDomainName(s)
|
|
for i, j := 0, len(l)-1; i < j; i, j = i+1, j-1 {
|
|
l[i], l[j] = l[j], l[i]
|
|
}
|
|
for i, k := range l {
|
|
if k == "*" || k == "any" {
|
|
return path.Join(append([]string{"/" + e.PathPrefix + "/"}, l[:i]...)...), true
|
|
}
|
|
}
|
|
return path.Join(append([]string{"/" + e.PathPrefix + "/"}, l...)...), false
|
|
}
|