mirror of https://github.com/mpolden/echoip
81 lines
2.1 KiB
Go
81 lines
2.1 KiB
Go
package main
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import (
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"flag"
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"log"
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"os"
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"github.com/mpolden/echoip/http"
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"github.com/mpolden/echoip/iputil"
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"github.com/mpolden/echoip/iputil/geo"
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)
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type multiValueFlag []string
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func (f *multiValueFlag) String() string {
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vs := ""
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for i, v := range *f {
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vs += v
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if i < len(*f)-1 {
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vs += ", "
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}
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}
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return vs
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}
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func (f *multiValueFlag) Set(v string) error {
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*f = append(*f, v)
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return nil
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}
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func main() {
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countryFile := flag.String("f", "", "Path to GeoIP country database")
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cityFile := flag.String("c", "", "Path to GeoIP city database")
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asnFile := flag.String("a", "", "Path to GeoIP ASN database")
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listen := flag.String("l", ":8080", "Listening address")
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reverseLookup := flag.Bool("r", false, "Perform reverse hostname lookups")
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portLookup := flag.Bool("p", false, "Enable port lookup")
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template := flag.String("t", "index.html", "Path to template")
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cacheSize := flag.Int("C", 0, "Size of response cache. Set to 0 to disable")
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profile := flag.Bool("P", false, "Enables profiling handlers")
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var headers multiValueFlag
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flag.Var(&headers, "H", "Header to trust for remote IP, if present (e.g. X-Real-IP)")
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flag.Parse()
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log := log.New(os.Stderr, "echoip: ", 0)
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r, err := geo.Open(*countryFile, *cityFile, *asnFile)
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if err != nil {
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log.Fatal(err)
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}
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cache := http.NewCache(*cacheSize)
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server := http.New(r, cache, *profile)
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server.IPHeaders = headers
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if _, err := os.Stat(*template); err == nil {
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server.Template = *template
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} else {
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log.Printf("Not configuring default handler: Template not found: %s", *template)
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}
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if *reverseLookup {
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log.Println("Enabling reverse lookup")
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server.LookupAddr = iputil.LookupAddr
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}
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if *portLookup {
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log.Println("Enabling port lookup")
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server.LookupPort = iputil.LookupPort
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}
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if len(headers) > 0 {
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log.Printf("Trusting remote IP from header(s): %s", headers.String())
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}
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if *cacheSize > 0 {
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log.Printf("Cache capacity set to %d", *cacheSize)
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}
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if *profile {
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log.Printf("Enabling profiling handlers")
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}
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log.Printf("Listening on http://%s", *listen)
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if err := server.ListenAndServe(*listen); err != nil {
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log.Fatal(err)
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}
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}
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