routeros_dns/dns.go
Magnus Åhall ad638acaf3 WIP
2026-02-23 07:04:57 +01:00

141 lines
2.6 KiB
Go

package main
import (
// Standard
"fmt"
"maps"
"slices"
"strings"
)
type DNSRecord struct {
ID string `json:".id"`
Address string
Disabled string
Dynamic string
Name string
TTL string
Type string
}
type DomainPart struct {
Subparts map[string]*DomainPart `json:",omitempty"`
}
type RecordsTree struct {
Record DNSRecord
Children []RecordsTree
}
func SortDNSRecord(a, b DNSRecord) int {
aComponents := strings.Split(a.Name, ".")
bComponents := strings.Split(b.Name, ".")
slices.Reverse(aComponents)
slices.Reverse(bComponents)
for i, aComp := range aComponents {
if i >= len(bComponents) {
return -1
}
bComp := bComponents[i]
if aComp > bComp {
return 1
}
if aComp < bComp {
return -1
}
}
return 0
}
func (r DNSRecord) Parts() int {
return len(strings.Split(r.Name, "."))
}
func (r DNSRecord) Part(numParts int) string {
splitName := strings.Split(r.Name, ".")
slices.Reverse(splitName)
parts := []string{}
for i := range numParts {
if i >= len(splitName) {
break
}
parts = append(parts, splitName[i])
}
slices.Reverse(parts)
return strings.Join(parts, ".")
}
func (r DNSRecord) NameReversed() string {
parts := strings.Split(r.Name, ".")
slices.Reverse(parts)
return strings.Join(parts, ".")
}
func BuildRecordsTree(records []DNSRecord) *DomainPart {
topPart := new(DomainPart)
topPart.Subparts = make(map[string]*DomainPart)
for _, record := range records {
curPart := topPart
currentDomainNameSplit := strings.Split(record.Name, ".")
slices.Reverse(currentDomainNameSplit)
for _, part := range currentDomainNameSplit {
if nextDomainPart, found := curPart.Subparts[part]; !found {
newPart := new(DomainPart)
newPart.Subparts = make(map[string]*DomainPart)
curPart.Subparts[strings.ToLower(part)] = newPart
curPart = newPart
} else {
curPart = nextDomainPart
}
}
}
return topPart
}
func (dp *DomainPart) ToHTML(parts []string) string {
html := ""
sortedParts := slices.Sorted(maps.Keys(dp.Subparts))
for _, part := range sortedParts {
subpart := dp.Subparts[part]
newParts := append(parts, part)
reversedParts := make([]string, len(newParts))
copy(reversedParts, newParts)
slices.Reverse(reversedParts)
fqdn := strings.Join(reversedParts, ".")
var subHTML string
if len(subpart.Subparts) == 0 {
html += fmt.Sprintf(`<div class="record" data-record="%s">%s</div>`, fqdn, fqdn)
} else {
subHTML = subpart.ToHTML(newParts)
html += fmt.Sprintf(`
<div class="top" data-top="%s">
<div class="fqdn">%s</div>
<div class="records">%s</div>
</div>
`,
fqdn,
fqdn,
subHTML,
)
}
}
return html
}