mirror of
https://github.com/dcarrillo/whatismyip.git
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dcarrillo
49ffcadb0a
High (behavioral bugs):
- service.Geo: add RLock on lookups, handle Reload error, keep old DBs on failure
- models.GeoDB.Reload: open new DBs before closing old ones (no reader gap)
- router: guard nil geo records (404 instead of 500) in geo.go, generic.go, dns.go
- router/port_scanner: reject undetermined client IPs (nil->localhost dial)
- internal/httputils: fix access log date layout (02/Jan/2006, not literal Nov)
- server/quic: log.Printf instead of log.Fatal in request handler
Medium:
- server/*: 10s shutdown timeout; SIGTERM drains servers before closing geo DBs
- httputils: Clone() request headers instead of mutating the live map; strings.Builder
- setting/app: handle all os.Stat errors; fix "truster" typos; use errors.New;
remove dead Token field
- cmd: errors.Is for sentinel checks; os.Stderr; log.Fatal instead of panic;
pass http.Handler by value (not pointer-to-interface)
- resolver: validate config at startup (pre-parse RRs, validate IPs); check WriteMsg
errors; Setup returns error
Low:
- .golangci.yaml: enable errcheck, govet, errorlint; fix all resulting findings
- server/tls: explicit TLSConfig{MinVersion: tls.VersionTLS12}
- router/dns: label-exact vhost suffix check, strip port; template.Must
- models: errors.Join instead of %s on []error
- service/geo_test: race-regression test (concurrent lookups during Reload)
- README: Go >= 1.25; fix latent test bug (store.Add->Set in dns_test.go)
51 lines
898 B
Go
51 lines
898 B
Go
package server
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import (
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"context"
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"log"
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"strconv"
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"github.com/miekg/dns"
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)
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const port = 53
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type DNS struct {
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server *dns.Server
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handler *dns.Handler
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ctx context.Context
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}
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func NewDNSServer(ctx context.Context, handler dns.Handler) *DNS {
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return &DNS{
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handler: &handler,
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ctx: ctx,
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}
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}
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func (d *DNS) Start() {
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d.server = &dns.Server{
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Addr: ":" + strconv.Itoa(port),
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Net: "udp",
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Handler: *d.handler,
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// UDPSize: 65535,
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// ReusePort: true,
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}
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log.Printf("Starting DNS server listening on :%d (udp)", port)
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go func() {
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if err := d.server.ListenAndServe(); err != nil {
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log.Fatal(err)
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}
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}()
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}
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func (d *DNS) Stop() {
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log.Print("Stopping DNS server...")
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ctx, cancel := context.WithTimeout(d.ctx, shutdownTimeout)
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defer cancel()
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if err := d.server.ShutdownContext(ctx); err != nil {
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log.Printf("DNS server forced to shutdown: %s", err)
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}
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}
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