ooni-probe-cli/internal/engine/geolocate/cloudflare.go
Simone Basso 110a11828b
refactor: spin geoipx off geolocate (#893)
A bunch of packages (including oohelperd) just need the ability to
use MaxMind-like databases. They don't need the additional functionality
implemented by the geolocate package. Such a package, in fact, is
mostly (if not only) needed by the engine package.

Therefore, move code to query MaxMind-like databases to a separate
package, and avoid depending on geolocate in all the packages for
which it's sufficient to use geoipx.

Part of https://github.com/ooni/probe/issues/2240
2022-08-28 20:00:25 +02:00

33 lines
750 B
Go

package geolocate
import (
"context"
"net/http"
"regexp"
"strings"
"github.com/ooni/probe-cli/v3/internal/httpx"
"github.com/ooni/probe-cli/v3/internal/model"
)
func cloudflareIPLookup(
ctx context.Context,
httpClient *http.Client,
logger model.Logger,
userAgent string,
) (string, error) {
data, err := (&httpx.APIClientTemplate{
BaseURL: "https://www.cloudflare.com",
HTTPClient: httpClient,
Logger: logger,
UserAgent: model.HTTPHeaderUserAgent,
}).WithBodyLogging().Build().FetchResource(ctx, "/cdn-cgi/trace")
if err != nil {
return model.DefaultProbeIP, err
}
r := regexp.MustCompile("(?:ip)=(.*)")
ip := strings.Trim(string(r.Find(data)), "ip=")
logger.Debugf("cloudflare: body: %s", ip)
return ip, nil
}