func readHashes(db *openpgp.DB) chan *conflux.Zp {
hashes := make(chan *conflux.Zp)
go func() {
defer close(hashes)
rows, err := db.DB.Query("SELECT md5 FROM openpgp_pubkey")
if err != nil {
die(err)
}
for rows.Next() {
var md5str string
if err = rows.Scan(&md5str); err != nil {
die(err)
}
digest, err := hex.DecodeString(md5str)
if err != nil {
log.Println("Bad md5:", md5str)
continue
}
digest = recon.PadSksElement(digest)
digestZp := conflux.Zb(conflux.P_SKS, digest)
hashes <- digestZp
}
if err = rows.Err(); err != nil {
log.Println("Error during hash query:", err)
}
}()
return hashes
}
func DigestZp(digest string) (*Zp, error) {
buf, err := hex.DecodeString(digest)
if err != nil {
return nil, err
}
buf = recon.PadSksElement(buf)
return Zb(P_SKS, buf), nil
}
func (ec *loadCmd) loadAllKeys(path string) {
keyfiles, err := filepath.Glob(path)
if err != nil {
die(err)
}
for _, keyfile := range keyfiles {
var f *os.File
if f, err = os.Open(keyfile); err != nil {
log.Println("Failed to open", keyfile, ":", err)
continue
}
defer f.Close()
log.Println("Loading keys from", keyfile)
defer ec.flushDb()
for keyRead := range openpgp.ReadKeys(f) {
if keyRead.Error != nil {
log.Println("Error reading key:", keyRead.Error)
continue
}
digest, err := hex.DecodeString(keyRead.Pubkey.Md5)
if err != nil {
log.Println("bad digest:", keyRead.Pubkey.Md5)
continue
}
digest = recon.PadSksElement(digest)
digestZp := conflux.Zb(conflux.P_SKS, digest)
err = ec.ptree.Insert(digestZp)
if err != nil {
log.Println("Error inserting digest ", keyRead.Pubkey.Md5, ":", err)
continue
}
err = ec.insertKey(keyRead)
if err != nil {
log.Println("Error inserting key", keyRead.Pubkey.Md5, "into database:", err)
// Attempt to remove digest from ptree, since it was not successfully loaded
ec.ptree.Remove(digestZp)
continue
}
}
}
}
func (r *SksPeer) requestChunk(rcvr *recon.Recover, chunk []*Zp) (err error) {
var remoteAddr string
remoteAddr, err = rcvr.HkpAddr()
if err != nil {
return err
}
// Make an sks hashquery request
hqBuf := bytes.NewBuffer(nil)
err = recon.WriteInt(hqBuf, len(chunk))
if err != nil {
return err
}
for _, z := range chunk {
zb := z.Bytes()
zb = recon.PadSksElement(zb)
// Hashquery elements are 16 bytes (length_of(P_SKS)-1)
zb = zb[:len(zb)-1]
err = recon.WriteInt(hqBuf, len(zb))
if err != nil {
return err
}
_, err = hqBuf.Write(zb)
if err != nil {
return err
}
}
resp, err := http.Post(fmt.Sprintf("http://%s/pks/hashquery", remoteAddr),
"sks/hashquery", bytes.NewReader(hqBuf.Bytes()))
if err != nil {
return err
}
// Store response in memory. Connection may timeout if we
// read directly from it while loading.
var body *bytes.Buffer
{
defer resp.Body.Close()
bodyBuf, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
body = bytes.NewBuffer(bodyBuf)
}
var nkeys, keyLen int
nkeys, err = recon.ReadInt(body)
if err != nil {
return err
}
log.Println("Response from server:", nkeys, " keys found")
for i := 0; i < nkeys; i++ {
keyLen, err = recon.ReadInt(body)
if err != nil {
return err
}
keyBuf := bytes.NewBuffer(nil)
_, err = io.CopyN(keyBuf, body, int64(keyLen))
if err != nil {
return err
}
log.Println("Key#", i+1, ":", keyLen, "bytes")
// Merge locally
recoverKey := RecoverKey{
Keytext: keyBuf.Bytes(),
Source: rcvr.RemoteAddr.String(),
response: make(chan hkp.Response)}
go func() {
r.RecoverKey <- recoverKey
}()
resp := <-recoverKey.response
if resp, ok := resp.(*RecoverKeyResponse); ok {
if resp.Error() != nil {
log.Println("Error adding key:", resp.Error())
}
} else if resp != nil {
log.Println("Error adding key:", resp.Error())
} else {
log.Println("Empty response from recovering key!")
}
}
// Read last two bytes (CRLF, why?), or SKS will complain.
body.Read(make([]byte, 2))
return
}