93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
// figures out if your hostname is valid
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// then checks if your DNS is setup correctly
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package main
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import (
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"strings"
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"go.wit.com/log"
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"go.wit.com/shell"
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// "go.wit.com/gui/cloudflare"
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"github.com/miekg/dns"
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// will try to get this hosts FQDN
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"github.com/Showmax/go-fqdn"
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)
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func getHostname() {
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var err error
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var s string = "gui.Label == nil"
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s, err = fqdn.FqdnHostname()
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if (err != nil) {
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log.Error(err, "FQDN hostname error")
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return
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}
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me.status.SetHostname(s)
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dn := run("domainname")
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hshort := run("hostname -s")
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var test string
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test = hshort + "." + dn
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if (me.status.GetHostname() != test) {
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log.Log(CHANGE, "me.hostname", me.status.GetHostname(), "does not equal", test)
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if (me.hostnameStatus.S != "BROKEN") {
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log.Log(CHANGE, "me.hostname", me.status.GetHostname(), "does not equal", test)
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me.changed = true
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me.hostnameStatus.SetText("BROKEN")
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}
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} else {
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if (me.hostnameStatus.S != "VALID") {
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log.Log(CHANGE, "me.hostname", me.status.GetHostname(), "is valid")
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me.hostnameStatus.SetText("VALID")
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me.changed = true
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}
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}
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}
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// returns true if the hostname is good
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// check that all the OS settings are correct here
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// On Linux, /etc/hosts, /etc/hostname
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// and domainname and hostname
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func goodHostname() bool {
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hostname := shell.Chomp(shell.Cat("/etc/hostname"))
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log.Log(NOW, "hostname =", hostname)
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hs := run("hostname -s")
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dn := run("domainname")
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log.Log(NOW, "hostname short =", hs, "domainname =", dn)
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tmp := hs + "." + dn
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if (hostname == tmp) {
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log.Log(NOW, "hostname seems to be good", hostname)
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return true
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}
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return false
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}
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func digAAAA(hostname string) []string {
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var blah, ipv6Addresses []string
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// domain := hostname
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recordType := dns.TypeAAAA // dns.TypeTXT
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// Cloudflare's DNS server
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blah, _ = dnsUdpLookup("1.1.1.1:53", hostname, recordType)
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log.Println("digAAAA() has BLAH =", blah)
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if (len(blah) == 0) {
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log.Println("digAAAA() RUNNING dnsAAAAlookupDoH(domain)")
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ipv6Addresses = lookupDoH(hostname, "AAAA")
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log.Println("digAAAA() has ipv6Addresses =", strings.Join(ipv6Addresses, " "))
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for _, addr := range ipv6Addresses {
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log.Println(addr)
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}
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return ipv6Addresses
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}
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// TODO: check digDoH vs blah, if so, then port 53 TCP and/or UDP is broken or blocked
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log.Println("digAAAA() has BLAH =", blah)
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return blah
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}
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