func (h *HKPFront) ServeHTTP(w http.ResponseWriter, r *http.Request) {
q := r.URL.Query()
if r.Method != "GET" || r.URL.Path != "/pks/lookup" || len(q["op"]) != 1 || q["op"][0] != "get" || len(q["search"]) != 1 {
http.Error(w, `this server only supports queries of the form "/pks/lookup?op=get&search=<EMAIL>"`, 501)
return
}
user := q["search"][0]
ctx := context.Background()
var requiredSignatures *proto.QuorumExpr
if !h.InsecureSkipVerify {
realm, err := coname.GetRealmByUser(h.Config, user)
if err != nil {
http.Error(w, err.Error(), 400)
return
}
requiredSignatures = realm.VerificationPolicy.Quorum
}
pf, err := h.Lookup(ctx, &proto.LookupRequest{UserId: user, QuorumRequirement: requiredSignatures})
if err != nil {
http.Error(w, err.Error(), 503)
return
}
if !h.InsecureSkipVerify {
coname.VerifyLookup(h.Config, user, pf, h.Clk.Now())
}
if pf.Profile.Keys == nil {
http.Error(w, `No results found: No keys found: unknown email`, 404)
return
}
pgpKey, present := pf.Profile.Keys["pgp"]
if !present {
http.Error(w, `No results found: No keys found: the email is known to the keyserver, but the profile does not include an OpenPGP key`, 404)
return
}
if _, mr := q["mr"]; mr {
w.Header().Set("Content-Type", "application/pgp-keys")
}
aw, err := armor.Encode(w, "PGP PUBLIC KEY BLOCK", nil)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
_, err = aw.Write(pgpKey)
if err != nil {
http.Error(w, err.Error(), 500)
return
}
if err := aw.Close(); err != nil {
http.Error(w, err.Error(), 500)
return
}
}
func TestKeyserverRoundtrip(t *testing.T) {
nReplicas := 3
cfgs, gks, ck, clientConfig, _, caPool, _, teardown := setupKeyservers(t, nReplicas)
defer teardown()
logs, dbs, clks, _, teardown2 := setupRaftLogCluster(t, nReplicas, 0)
defer teardown2()
kss := []*Keyserver{}
for i := range cfgs {
ks, err := Open(cfgs[i], dbs[i], logs[i], clientConfig.Realms[0].VerificationPolicy, clks[i], gks[i], nil)
if err != nil {
t.Fatal(err)
}
ks.insecureSkipEmailProof = true
ks.Start()
defer ks.Stop()
kss = append(kss, ks)
}
stop := stoppableSyncedClocks(clks)
defer close(stop)
waitForFirstEpoch(kss[0], clientConfig.Realms[0].VerificationPolicy.GetQuorum())
clientTLS, err := clientConfig.Realms[0].ClientTLS.Config(ck)
if err != nil {
t.Fatal(err)
}
_, _, _, profile := doRegister(t, kss[0], clientConfig, clientTLS, caPool, clks[0].Now(), alice, 0, proto.Profile{
Nonce: []byte("noncenoncenonceNONCE"),
Keys: map[string][]byte{"abc": []byte{1, 2, 3}, "xyz": []byte("TEST 456")},
})
conn, err := grpc.Dial(kss[0].publicListen.Addr().String(), grpc.WithTransportCredentials(credentials.NewTLS(clientTLS)))
if err != nil {
t.Fatal(err)
}
c := proto.NewE2EKSPublicClient(conn)
proof, err := c.Lookup(context.Background(), &proto.LookupRequest{
UserId: alice,
QuorumRequirement: clientConfig.Realms[0].VerificationPolicy.GetQuorum(),
})
if err != nil {
t.Fatal(err)
}
if got, want := proof.Profile.Encoding, profile.Encoding; !bytes.Equal(got, want) {
t.Errorf("profile didn't roundtrip: %x != %x", got, want)
}
_, err = coname.VerifyLookup(clientConfig, alice, proof, clks[0].Now())
if err != nil {
t.Fatal(err)
}
}
func TestKeyserverAbsentLookup(t *testing.T) {
dieOnCtrlC()
pprof()
nReplicas := 3
cfgs, gks, ck, clientConfig, _, _, _, teardown := setupKeyservers(t, nReplicas)
defer teardown()
logs, dbs, clks, _, teardown2 := setupRaftLogCluster(t, nReplicas, 0)
defer teardown2()
kss := []*Keyserver{}
for i := range cfgs {
ks, err := Open(cfgs[i], dbs[i], logs[i], clientConfig.Realms[0].VerificationPolicy, clks[i], gks[i], nil)
if err != nil {
t.Fatal(err)
}
ks.Start()
defer ks.Stop()
kss = append(kss, ks)
}
stop := stoppableSyncedClocks(clks)
defer close(stop)
waitForFirstEpoch(kss[0], clientConfig.Realms[0].VerificationPolicy.GetQuorum())
clientTLS, err := clientConfig.Realms[0].ClientTLS.Config(ck)
if err != nil {
t.Fatal(err)
}
conn, err := grpc.Dial(kss[0].publicListen.Addr().String(), grpc.WithTransportCredentials(credentials.NewTLS(clientTLS)))
if err != nil {
t.Fatal(err)
}
c := proto.NewE2EKSPublicClient(conn)
proof, err := c.Lookup(context.Background(), &proto.LookupRequest{
UserId: alice,
QuorumRequirement: clientConfig.Realms[0].VerificationPolicy.GetQuorum(),
})
if err != nil {
t.Fatal(err)
}
keys, err := coname.VerifyLookup(clientConfig, alice, proof, clks[0].Now())
if err != nil {
t.Fatal(err)
}
if keys != nil {
t.Fatalf("Got back keys for a nonexistent profile")
}
}
func TestKeyserverLookupSpecificEpoch(t *testing.T) {
dieOnCtrlC()
kss, caPool, clks, verifiers, ck, clientConfig, teardown := setupRealm(t, 3, 3)
defer teardown()
stop := stoppableSyncedClocks(clks)
defer close(stop)
waitForFirstEpoch(kss[0], clientConfig.Realms[0].VerificationPolicy.GetQuorum())
clientTLS, err := clientConfig.Realms[0].ClientTLS.Config(ck)
if err != nil {
t.Fatal(err)
}
_, _, _, profile := doRegister(t, kss[0], clientConfig, clientTLS, caPool, clks[0].Now(), alice, 0, proto.Profile{
Nonce: []byte("noncenoncenonceNONCE"),
Keys: map[string][]byte{"abc": []byte{1, 2, 3}, "xyz": []byte("TEST 456")},
})
epoch, err := getLatestEpoch(kss[0], clientConfig.Realms[0].VerificationPolicy.GetQuorum())
if err != nil {
t.Fatal(err)
}
conn, err := grpc.Dial(kss[0].publicListen.Addr().String(), grpc.WithTransportCredentials(credentials.NewTLS(clientTLS)))
if err != nil {
t.Fatal(err)
}
c := proto.NewE2EKSPublicClient(conn)
proof, err := c.Lookup(context.Background(), &proto.LookupRequest{
Epoch: epoch,
UserId: alice,
QuorumRequirement: clientConfig.Realms[0].VerificationPolicy.GetQuorum(),
})
if err != nil {
t.Fatal(err)
}
if got, want := proof.Profile.Encoding, profile.Encoding; !bytes.Equal(got, want) {
t.Errorf("profile didn't roundtrip: %x != %x", got, want)
}
if got, want := len(proof.Ratifications), majority(len(kss))+len(verifiers); got < want {
t.Errorf("expected at least %d sehs, got %d", got, want)
}
_, err = coname.VerifyLookup(clientConfig, alice, proof, clks[0].Now())
if err != nil {
t.Fatal(err)
}
}
func doUpdate(
t *testing.T, ks *Keyserver, clientConfig *proto.Config, clientTLS *tls.Config, caPool *x509.CertPool, now time.Time,
name string, sk *[ed25519.PrivateKeySize]byte, pk *proto.PublicKey, version uint64, profileContents proto.Profile,
) (*proto.EncodedEntry, *proto.EncodedProfile) {
conn, err := grpc.Dial(ks.publicListen.Addr().String(), grpc.WithTransportCredentials(credentials.NewTLS(clientTLS)))
if err != nil {
t.Fatal(err)
}
publicC := proto.NewE2EKSPublicClient(conn)
// First, do a lookup to retrieve the index
lookup, err := publicC.Lookup(context.Background(), &proto.LookupRequest{
UserId: name,
// We don't care about any signatures here; the server just needs to tell us the index.
QuorumRequirement: &proto.QuorumExpr{
Threshold: 0,
Candidates: []uint64{},
Subexpressions: []*proto.QuorumExpr{},
},
})
if err != nil {
t.Fatal(err)
}
index := lookup.Index
// Do the update
var keyidBytes [8]byte
sha3.ShakeSum256(keyidBytes[:], proto.MustMarshal(pk))
keyid := binary.BigEndian.Uint64(keyidBytes[:8])
profile := proto.EncodedProfile{
Profile: profileContents,
}
profile.UpdateEncoding()
var commitment [64]byte
sha3.ShakeSum256(commitment[:], profile.Encoding)
entry := proto.EncodedEntry{
Entry: proto.Entry{
Index: index,
Version: version,
UpdatePolicy: &proto.AuthorizationPolicy{
PublicKeys: map[uint64]*proto.PublicKey{keyid: pk},
PolicyType: &proto.AuthorizationPolicy_Quorum{Quorum: &proto.QuorumExpr{
Threshold: 1,
Candidates: []uint64{keyid},
Subexpressions: []*proto.QuorumExpr{},
},
}},
ProfileCommitment: commitment[:],
},
}
entry.UpdateEncoding()
proof, err := publicC.Update(context.Background(), &proto.UpdateRequest{
Update: &proto.SignedEntryUpdate{
NewEntry: entry,
Signatures: map[uint64][]byte{keyid: ed25519.Sign(sk, entry.Encoding)[:]},
},
Profile: profile,
LookupParameters: &proto.LookupRequest{
UserId: name,
QuorumRequirement: clientConfig.Realms[0].VerificationPolicy.GetQuorum(),
},
})
if err != nil {
t.Fatal(err)
}
if got, want := proof.Profile.Encoding, profile.Encoding; !bytes.Equal(got, want) {
t.Errorf("updated profile didn't roundtrip: %x != %x", got, want)
}
_, err = coname.VerifyLookup(clientConfig, name, proof, now)
if err != nil {
t.Fatal(err)
}
return &entry, &profile
}
func main() {
configPathPtr := flag.String("config", "clientconfig.json", "path to config file")
name := flag.String("name", "*****@*****.**", "name to be looked up")
lookupOnly := flag.Bool("lookup", false, "only lookup the name")
flag.Parse()
timeOut := 10 * time.Second
configReader, err := os.Open(*configPathPtr)
if err != nil {
log.Fatalf("Failed to open configuration file: %s", err)
}
cfg := &proto.Config{}
err = jsonpb.Unmarshal(configReader, cfg)
if err != nil {
log.Fatalf("Failed to parse configuration file: %s", err)
}
certFile := "ca.crt.pem"
caCertPEM, err := ioutil.ReadFile(certFile)
if err != nil {
log.Fatalf("couldn't read certs from %s", certFile)
}
caCertDER, caCertPEM := pem.Decode(caCertPEM)
if caCertDER == nil {
log.Fatalf("failed to parse key PEM")
}
caCert, err := x509.ParseCertificate(caCertDER.Bytes)
if err != nil {
log.Fatal(err)
}
caPool := x509.NewCertPool()
caPool.AddCert(caCert)
realm := cfg.Realms[0]
clientTLS, err := realm.ClientTLS.Config(getKey)
if err != nil {
log.Fatal(err)
}
conn, err := grpc.Dial(realm.Addr, grpc.WithTransportCredentials(credentials.NewTLS(clientTLS)), grpc.WithTimeout(timeOut))
if err != nil {
log.Fatal(err)
}
publicC := proto.NewE2EKSPublicClient(conn)
// First, do a lookup to retrieve the index
lookup, err := publicC.Lookup(context.Background(), &proto.LookupRequest{
UserId: *name,
// We don't care about any signatures here; the server just needs to tell us the index.
// We could just give an empty quorum requirement if we wanted (although I guess the
// spec actually disallows that).
QuorumRequirement: realm.VerificationPolicy.GetQuorum(),
})
if err != nil {
log.Fatal(err)
}
fmt.Printf("looking up %s:\n", *name)
keys, err := coname.VerifyLookup(cfg, *name, lookup, time.Now())
if err != nil {
log.Fatal(err)
}
if keys == nil {
fmt.Printf("not present\n")
} else {
fmt.Printf("keys: %s\n", keys)
}
index := lookup.Index
if *lookupOnly {
return
}
// Then, do the actual update
nonce := make([]byte, 16)
_, err = rand.Read(nonce)
if err != nil {
log.Fatal(err)
}
profile := proto.EncodedProfile{
Profile: proto.Profile{
Nonce: nonce,
Keys: map[string][]byte{"abc": []byte("foo bar"), "xyz": []byte("TEST 456")},
},
}
profile.UpdateEncoding()
var commitment [64]byte
sha3.ShakeSum256(commitment[:], profile.Encoding)
var version uint64
if lookup.Entry != nil {
version = lookup.Entry.Version + 1
}
entry := proto.EncodedEntry{
Entry: proto.Entry{
Index: index,
Version: version,
UpdatePolicy: &proto.AuthorizationPolicy{
PublicKeys: make(map[uint64]*proto.PublicKey),
PolicyType: &proto.AuthorizationPolicy_Quorum{
Quorum: &proto.QuorumExpr{
Threshold: 0,
Candidates: []uint64{},
Subexpressions: []*proto.QuorumExpr{},
},
},
},
ProfileCommitment: commitment[:],
},
}
entry.UpdateEncoding()
var entryHash [32]byte
sha3.ShakeSum256(entryHash[:], entry.Encoding)
fmt.Printf("updating profile:\n")
proof, err := publicC.Update(context.Background(), &proto.UpdateRequest{
Update: &proto.SignedEntryUpdate{
NewEntry: entry,
Signatures: make(map[uint64][]byte),
},
Profile: profile,
LookupParameters: &proto.LookupRequest{
UserId: *name,
QuorumRequirement: realm.VerificationPolicy.GetQuorum(),
},
EmailProof: &proto.EmailProof{ProofType: &proto.EmailProof_DKIMProof{DKIMProof: []byte("X-Apparently-To: [email protected]; Mon, 31 Aug 2015 20:22:05 +0000\r\nReturn-Path: <*****@*****.**>\r\nReceived-SPF: pass (domain of yahoo-inc.com designates 216.145.54.155 as permitted sender)\r\nX-YMailISG: 1EhwNaYWLDv2gTUu.9nt0jxdqITV9b92O6Cwv1fdJI0Znuzw\r\n JiRKT62YsHZWJxcnlzt4SKtiChHTSAwHSy9.w97NwmcUQYqFkJkXmsqAjscY\r\n 0KW9efirs1q3YEvUtmN3BkIhbXujDW5L0Ne0YQtZnK.DF_Yi6dp7RCvfzUZf\r\n RskRPc2qP.tEMNji9_S1kSiPCtn8AwFsPHgGZtQOTtEYsTYUCsD4oEnjAJy1\r\n 332kCwDAOk1wj5l7.PwstEHF438ER_KZaMzfFq8UNrhdEwoFYZGSOfYeFV8W\r\n d2XMmN4vAJRV4D0FV9_cYwJRktzNvKqq.WddXZLuc96QR4.hxOOsq4gEEfJ8\r\n rkw8VodZEu_GlY_2lmyW8UBqmZLhO9lFuNsjfPVSVRyTxt4mMFBG_5XQudBO\r\n xudVy7LzRGiwH.3UlpR4Vl7smmSRC2bf4OrR0bZthRngty1VipzNCRVAE8Od\r\n ZjoR092JxYCF.B94f6ZF5FKqbB2QCjns3WKF0aExw.lzX8_Ral0DsXpBdan5\r\n aIU8cGBQuJBoaAjbaEanoVUXlvz0qXHLEDisvKKsc3w.igAQy01OCSik.2Gx\r\n m2XkGfeZ37mSdZhzAVKMR8eM8WkXl_O.uf7kq6vEyWXuhaMQonTjFYcdAtZX\r\n FMxFdkDTLp4bdEn1gu9JWyRYZTYnj3igBJxc0z_tIBlMrVpcf_NFpjBn1di2\r\n _sfojiKsnhUoYHwbjX7KT7yblcK8Re5Fp57g7XWIc2_tmRbY_iaiGhK0qr4x\r\n 72_hfaF0OBgArvDUPYWF50HYIP597qv1ucNyymAPVGxOx1UNOFWej494R6N1\r\n C8VTghtzKCbklLGGnmSIqPRZCZntvEsWHmmabhFwxRiTZQeu_HfN8CA_Gqoq\r\n k4qQgMbq9o22ekLsAj_jDEnUW343npUbD0XAYDOBCKuSRxZubpmXAu1HqmWL\r\n OTbpjEw8lvF_71EyG5qKVZoEiNCxXMUxia1FBp6RS_uDb4E73TgPxe1v1Ctw\r\n dzqBdg4G0DKkeMqDmDUzQUynHnonJpO4M5Bl6cdr2OfvYK7iDpPf1xeqoexb\r\n McFitNfwU6kax4VRMGahTFv2L56ovtsgV.NMuNEAwad_p3zI0kwi3OMfan9K\r\n _5pIOwQYuKc5vD.5Twq9KSOdYHGYZp_8cBv6dZ4UXvc9k1M5491nJ164VQo.\r\n v.qr6ufI2qhXdMTNxzsLw372.iYBA_5xPeT3dvaYt35sjzmjZnpN\r\nX-Originating-IP: [216.145.54.155]\r\nAuthentication-Results: mta2002.corp.mail.gq1.yahoo.com from=yahoo-inc.com; domainkeys=neutral (no sig); from=yahoo-inc.com; dkim=pass (ok)\r\nReceived: from 127.0.0.1 (EHLO mrout6.yahoo.com) (216.145.54.155)\r\n by mta2002.corp.mail.gq1.yahoo.com with SMTPS; Mon, 31 Aug 2015 20:22:05 +0000\r\nReceived: from omp1018.mail.ne1.yahoo.com (omp1018.mail.ne1.yahoo.com [98.138.89.162])\r\n by mrout6.yahoo.com (8.14.9/8.14.9/y.out) with ESMTP id t7VKLum2007505\r\n (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO)\r\n for <*****@*****.**>; Mon, 31 Aug 2015 13:21:56 -0700 (PDT)\r\nDKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yahoo-inc.com;\r\n s=cobra; t=1441052517;\r\n bh=frcCV1k9oG9oKj3dpUqdJg1PxRT2RSN/XKdLCPjaYaY=;\r\n h=Date:From:Reply-To:To:Subject;\r\n b=bzbQnVqgZoDSfLYqlVlyv++8CntLQ2AQJR84uPzh2OF/mnz+m+H+YfzAzYQc7b+GU\r\n lGgG0DX89hnWgmp4U1LlzNqwUFrhmL8muanSejVHWkrX48grrG1OwNd5z04oO0hFJE\r\n 20ql0lI4tkgSNR7JLoedMVNm/YdrmCiHbuMj2cxg=\r\nReceived: (qmail 99407 invoked by uid 1000); 31 Aug 2015 20:21:56 -0000\r\nDKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo-inc.com; s=ginc1024; t=1441052516; bh=47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=; h=Date:From:Reply-To:To:Message-ID:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding; b=r+c21Nf78CMLaL0K1FmgE/CQz70nUJyVsSgQWqu9OlGdIf2GrY9OmwueQ4xHiLu4A5Jd0CAFgxLS5ZkBkPf4xUCvaLmQOYyY+8bfM2JhuG+g2dOMmjjajNqs+iyXfyx+Ak0T2Kahom/b7cpmr5/PiAb2JpL3O0p2StukvGAolp0=\r\nX-YMail-OSG: 0DtuWrwLUzvKrUMVVf5jtWesdteRmLR6oLTuKAGepU.3rTsZeR6zFmacnp0O_Dj\r\n RWZU-\r\nReceived: by 98.138.105.210; Mon, 31 Aug 2015 20:21:55 +0000 \r\nDate: Mon, 31 Aug 2015 20:21:55 +0000 (UTC)\r\nFrom: Daniel Ziegler <*****@*****.**>\r\nReply-To: Daniel Ziegler <*****@*****.**>\r\nTo: Daniel Ziegler <*****@*****.**>\r\nMessage-ID: <*****@*****.**>\r\nSubject: _YAHOO_E2E_KEYSERVER_PROOF_Y4ncLhJeE/qmdXlzCRp5JtgFHy4F4NbKPawk9U8vJ1E=\r\nMIME-Version: 1.0\r\nContent-Type: text/plain; charset=UTF-8\r\nContent-Transfer-Encoding: 7bit\r\nContent-Length: 1\r\n\r\n")}}})
if err != nil {
log.Fatalf("update failed on %s: %s", realm.Addr, err)
}
if got, want := proof.Profile.Encoding, profile.Encoding; !bytes.Equal(got, want) {
log.Fatalf("created profile didn't roundtrip: %x != %x", got, want)
}
_, err = coname.VerifyLookup(cfg, *name, proof, time.Now())
if err != nil {
log.Fatal(err)
}
fmt.Printf("success\n")
}
func TestKeyserverHTTPFrontLookup(t *testing.T) {
kss, caPool, clks, verifiers, ck, clientConfig, teardown := setupRealm(t, 3, 3)
ks := kss[0]
defer teardown()
stop := stoppableSyncedClocks(clks)
defer close(stop)
waitForFirstEpoch(kss[0], clientConfig.Realms[0].VerificationPolicy.GetQuorum())
clientTLS, err := clientConfig.Realms[0].ClientTLS.Config(ck)
if err != nil {
t.Fatal(err)
}
pgpKeyRef := []byte("this-is-alices-pgp-key")
_, _, _, profile := doRegister(t, ks, clientConfig, clientTLS, caPool, clks[0].Now(), alice, 0, proto.Profile{
Nonce: []byte("definitely used only once"),
Keys: map[string][]byte{"pgp": pgpKeyRef},
})
url := "https://" + ks.httpFrontListen.Addr().String() + "/lookup"
lr := &proto.LookupRequest{UserId: alice,
QuorumRequirement: clientConfig.Realms[0].VerificationPolicy.GetQuorum()}
var b bytes.Buffer
mr := &jsonpb.Marshaler{OrigName: true}
err = mr.Marshal(&b, lr)
if err != nil {
t.Fatal(err)
}
req, err := http.NewRequest("POST", url, &b)
tr := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
c := &http.Client{Transport: tr}
resp, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
defer resp.Body.Close()
body, e := ioutil.ReadAll(resp.Body)
if resp.Status != "200 OK" {
t.Fatalf("%s (%s)", body, e)
}
proof := &proto.LookupProof{}
err = jsonpb.UnmarshalString(string(body), proof)
if err != nil {
t.Fatal(err)
}
if got, want := proof.Profile.Encoding, profile.Encoding; !bytes.Equal(got, want) {
t.Errorf("profile didn't roundtrip: %x != %x", got, want)
}
if got, want := len(proof.Ratifications), majority(len(kss))+len(verifiers); got < want {
t.Errorf("expected at least %d sehs, got %d", got, want)
}
_, err = coname.VerifyLookup(clientConfig, alice, proof, clks[0].Now())
if err != nil {
t.Fatal(err)
}
// To verify json response preserves the original field names
// as specified in https://github.com/yahoo/coname/blob/master/proto/client.proto#L63-L89
type lp struct {
Entry string `json:"entry"`
Index string `json:"index"`
IndexProof string `json:"index_proof"`
Profile string `json:"profile"`
UserId string `json:"user_id"`
}
l := &lp{}
err = json.Unmarshal(body, &l)
if err != nil {
t.Fatal(err)
}
if l.Entry == "" {
t.Errorf("entry not found in the response")
}
if l.Index == "" {
t.Errorf("index not found in the response")
}
if l.IndexProof == "" {
t.Errorf("index_proof not found in the response")
}
if l.Profile == "" {
t.Errorf("profile not found in the response")
}
if l.UserId == "" {
t.Errorf("user_id not found in the response")
}
}