55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
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package main
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import (
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"github.com/miekg/dns"
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// "log"
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)
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type GODNSHandler struct {
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resolver *Resolver
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cache *Cache
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}
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func NewHandler() *GODNSHandler {
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var (
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clientConfig *dns.ClientConfig
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cacheConfig CacheSettings
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)
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resolvConfig := settings.ResolvConfig
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clientConfig, err := dns.ClientConfigFromFile(resolvConfig.ResolvFile)
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if err != nil {
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logger.Printf(":%s is not a valid resolv.conf file\n", resolvConfig.ResolvFile)
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logger.Println(err)
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panic(err)
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}
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clientConfig.Timeout = resolvConfig.Timeout
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resolver := &Resolver{clientConfig}
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cacheConfig = settings.Cache
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cache := &Cache{cacheConfig}
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return &GODNSHandler{resolver, cache}
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}
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func (h *GODNSHandler) do(net string, w dns.ResponseWriter, req *dns.Msg) {
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qname := req.Question[0].Name
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qtype := req.Question[0].Qtype
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qclass := req.Question[0].Qclass
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Debug("Question: %s %s %s", qname, dns.ClassToString[qclass], dns.TypeToString[qtype])
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h.resolver.Lookup(net, req)
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}
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func (h *GODNSHandler) DoTCP(w dns.ResponseWriter, req *dns.Msg) {
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h.do("tcp", w, req)
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}
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func (h *GODNSHandler) DoUDP(w dns.ResponseWriter, req *dns.Msg) {
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h.do("udp", w, req)
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}
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