84c1f46ae4
- Use of context for custom http client - Remove unused nodeid for logger - Upgrade shadowsocks dependency
55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
package publicip
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import (
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"context"
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"fmt"
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"math/rand"
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"net"
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"net/http"
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"strings"
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"github.com/qdm12/golibs/network"
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)
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type IPGetter interface {
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Get(ctx context.Context) (ip net.IP, err error)
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}
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type ipGetter struct {
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client network.Client
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randIntn func(n int) int
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}
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func NewIPGetter(client network.Client) IPGetter {
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return &ipGetter{
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client: client,
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randIntn: rand.Intn,
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}
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}
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func (i *ipGetter) Get(ctx context.Context) (ip net.IP, err error) {
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urls := []string{
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"https://ifconfig.me/ip",
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"http://ip1.dynupdate.no-ip.com:8245",
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"http://ip1.dynupdate.no-ip.com",
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"https://api.ipify.org",
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"https://diagnostic.opendns.com/myip",
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"https://domains.google.com/checkip",
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"https://ifconfig.io/ip",
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"https://ipinfo.io/ip",
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}
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url := urls[i.randIntn(len(urls))]
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content, status, err := i.client.Get(ctx, url, network.UseRandomUserAgent())
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if err != nil {
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return nil, err
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} else if status != http.StatusOK {
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return nil, fmt.Errorf("received unexpected status code %d from %s", status, url)
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}
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s := strings.ReplaceAll(string(content), "\n", "")
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ip = net.ParseIP(s)
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if ip == nil {
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return nil, fmt.Errorf("cannot parse IP address from %q", s)
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}
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return ip, nil
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}
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