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bgpview.go
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bgpview.go
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package bgpview
import (
"encoding/json"
"fmt"
"net/url"
"github.com/leesoh/hacks/asntool/internal/http"
)
const endpoint = "https://api.bgpview.io/"
// Search retrieves the ASNs associated with the provided search term
func Search(term string) ([]string, error) {
var results []string
v := url.Values{}
v.Add("query_term", term)
u, err := url.Parse(endpoint)
if err != nil {
return results, nil
}
u.Path = "search"
u.RawQuery = v.Encode()
resp, err := http.GetResponse(u.String())
if err != nil {
return results, err
}
results, err = getASNs(resp)
if err != nil {
return results, nil
}
return results, nil
}
// LookupIP retrieves the IPs associated with the provided ASN
func LookupIP(asn string) ([]string, error) {
var results []string
qs := fmt.Sprintf("asn/" + asn + "/prefixes")
u, err := url.Parse(endpoint)
if err != nil {
return results, nil
}
u.Path = qs
resp, err := http.GetResponse(u.String())
if err != nil {
return results, nil
}
results, err = getIPs(resp)
if err != nil {
return results, nil
}
return results, nil
}
// getASNs retrieves the ASNs from a blob of JSON
func getASNs(resp []byte) ([]string, error) {
var results []string
var s SearchResults
err := json.Unmarshal(resp, &s)
if err != nil {
return results, err
}
for _, aa := range s.Data.Asns {
r := fmt.Sprintf("[%s] %d", aa.Name, aa.Asn)
results = append(results, r)
}
return results, nil
}
// getIPs retrieves the IPs associated with a given ASN
func getIPs(resp []byte) ([]string, error) {
var results []string
var p ASNPrefixResults
err := json.Unmarshal(resp, &p)
if err != nil {
return results, err
}
for _, pp := range p.Data.IPv4Prefixes {
r := fmt.Sprintf("[%s] %s", pp.Name, pp.Prefix)
results = append(results, r)
}
return results, nil
}