onionscan/scans/pgp_content_scan.go

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package scans
import (
"github.com/s-rah/onionscan/report"
"golang.org/x/crypto/openpgp"
"regexp"
"strings"
)
type PGPContentScan struct {
}
func (cs *PGPContentScan) ScanContent(content string, report *report.OnionScanReport) {
//log.Printf("Scanning for PGP Key\n")
pgpRegexp := regexp.MustCompile("-----BEGIN PGP PUBLIC KEY BLOCK-----((?s).*)-----END PGP PUBLIC KEY BLOCK-----")
foundPGP := pgpRegexp.FindAllString(content, -1)
for _, keyString := range foundPGP {
keys, err := openpgp.ReadArmoredKeyRing(strings.NewReader(keyString))
if err != nil {
// log.Printf("ERROR: %s\n", err)
continue
}
if len(keys) < 1 || len(keys[0].Subkeys) < 1 || len(keys[0].Identities) < 1 {
// log.Printf("ERROR: failed to accept key\n")
continue
}
var identity string
for identity = range keys[0].Identities {
break
}
// log.Printf("\tFound PGP Key fingerprint: %s belonging to %s", keys[0].Subkeys[0].PublicKey.KeyIdShortString(), identity)
report.AddPGPKey(keyString, identity, keys[0].Subkeys[0].PublicKey.KeyIdShortString())
}
}