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path: root/protocols/JabberG/src/jabber_omemo.cpp
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Diffstat (limited to 'protocols/JabberG/src/jabber_omemo.cpp')
-rwxr-xr-xprotocols/JabberG/src/jabber_omemo.cpp179
1 files changed, 131 insertions, 48 deletions
diff --git a/protocols/JabberG/src/jabber_omemo.cpp b/protocols/JabberG/src/jabber_omemo.cpp
index b4430cd6cf..9012488f6a 100755
--- a/protocols/JabberG/src/jabber_omemo.cpp
+++ b/protocols/JabberG/src/jabber_omemo.cpp
@@ -368,7 +368,7 @@ namespace omemo {
complete:
EVP_CIPHER_CTX_cleanup(&ctx);
if (out_buf) {
- free(out_buf);
+ mir_free(out_buf);
}
return result;
}
@@ -444,7 +444,7 @@ namespace omemo {
{
//TODO: more sanity checks
//TODO: check and if necessary refresh prekeys
- int id = proto->getDword("OmemoDeviceId", 0);
+ unsigned int id = proto->getDword("OmemoDeviceId", 0);
if (id == 0)
return true;
ptrA buf(proto->getStringA("OmemoDevicePublicKey"));
@@ -457,9 +457,9 @@ namespace omemo {
return false;
}
- DWORD GetOwnDeviceId(CJabberProto *proto)
+ unsigned int GetOwnDeviceId(CJabberProto *proto)
{
- DWORD own_id = proto->getDword("OmemoDeviceId", 0);
+ unsigned int own_id = proto->getDword("OmemoDeviceId", 0);
if (own_id == 0)
{
proto->OmemoInitDevice();
@@ -907,6 +907,7 @@ namespace omemo {
mir_snprintf(setting_name, strlen("OmemoSignalPreKey_") + 31, "%s%u%d", "OmemoSignalPreKey_", GetOwnDeviceId(data->proto), pre_key_id);
db_set_blob(0, data->proto->m_szModuleName, setting_name, record, (unsigned int)record_len); //TODO: check return value
mir_free(setting_name);
+ //TODO: additionally store base64encoded public key for bundle
return 0;
}
@@ -954,6 +955,7 @@ namespace omemo {
mir_snprintf(setting_name, strlen("OmemoSignalPreKey_") + 31, "%s%u%d", "OmemoSignalPreKey_", GetOwnDeviceId(data->proto), pre_key_id);
db_unset(0, data->proto->m_szModuleName, setting_name);
mir_free(setting_name);
+ //TODO: additionally remove base64encoded public key for bundle
return 0;
}
@@ -1009,6 +1011,7 @@ namespace omemo {
mir_snprintf(setting_name, strlen("OmemoSignalSignedPreKey_") + 31, "%s%u%d", "OmemoSignalSignedPreKey_", GetOwnDeviceId(data->proto), signed_pre_key_id);
db_set_blob(0, data->proto->m_szModuleName, setting_name, record, (unsigned int)record_len); //TODO: check return value
mir_free(setting_name);
+ //TODO: additionally store base64encoded public key for bundle
return 0;
}
@@ -1056,6 +1059,7 @@ namespace omemo {
mir_snprintf(setting_name, strlen("OmemoSignalSignedPreKey_") + 31, "%s%u%d", "OmemoSignalSignedPreKey_", GetOwnDeviceId(data->proto), signed_pre_key_id);
db_unset(0, data->proto->m_szModuleName, setting_name);
mir_free(setting_name);
+ //TODO: additionally remove base64encoded public key for bundle
return 0;
}
@@ -1149,7 +1153,7 @@ namespace omemo {
return 0;
}
- int is_trusted_identity(const signal_protocol_address *address, uint8_t *key_data, size_t key_len, void *user_data)
+ int is_trusted_identity(const signal_protocol_address * /*address*/, uint8_t * /*key_data*/, size_t /*key_len*/, void * /*user_data*/)
{
/**
* Verify a remote client's identity key.
@@ -1168,8 +1172,10 @@ namespace omemo {
* @return 1 if trusted, 0 if untrusted, negative on failure
*/
+ return 1;
- signal_store_backend_user_data* data = (signal_store_backend_user_data*)user_data;
+
+ /* signal_store_backend_user_data* data = (signal_store_backend_user_data*)user_data;
char *id_buf = (char*)mir_alloc(address->name_len + sizeof(int32_t));
memcpy(id_buf, address->name, address->name_len);
char *id_buf_ptr = id_buf;
@@ -1204,7 +1210,7 @@ namespace omemo {
db_free(&dbv);
- return 1;
+ return 1; */
}
//void(*destroy_func)(void *user_data); //use first one as we have nothing special to destroy
@@ -1289,7 +1295,7 @@ namespace omemo {
ec_public_key *prekey;
curve_decode_point(&prekey, key_buf, key_buf_len, global_context);
mir_free(pre_key_a);
- mir_free(key_buf); //TODO: check this
+ mir_free(key_buf);
int signed_pre_key_id_int = _wtoi(signed_pre_key_id);
pre_key_a = mir_u2a(signed_pre_key_public);
key_buf = (uint8_t*)mir_base64_decode(pre_key_a, &key_buf_len);
@@ -1348,9 +1354,11 @@ void CJabberProto::OmemoInitDevice()
omemo::RefreshDevice(this);
}
+DWORD JabberGetLastContactMessageTime(MCONTACT hContact);
-void CJabberProto::OmemoHandleMessage(HXML node, MCONTACT hContact)
+void CJabberProto::OmemoHandleMessage(HXML node, LPCTSTR jid, time_t msgTime)
{
+ MCONTACT hContact = HContactFromJID(jid);
if (!OmemoCheckSession(hContact)) //TODO: something better here
return;
HXML header_node = XmlGetChild(node, L"header");
@@ -1359,8 +1367,8 @@ void CJabberProto::OmemoHandleMessage(HXML node, MCONTACT hContact)
HXML payload_node = XmlGetChild(node, L"payload");
if (!payload_node)
return; //this is "KeyTransportElement" which is currently unused
- LPCTSTR payload_base64 = XmlGetText(payload_node);
- if (!payload_base64)
+ LPCTSTR payload_base64w = XmlGetText(payload_node);
+ if (!payload_base64w)
return;
LPCTSTR iv_base64 = XmlGetText(XmlGetChild(header_node, L"iv"));
if (!iv_base64)
@@ -1382,7 +1390,10 @@ void CJabberProto::OmemoHandleMessage(HXML node, MCONTACT hContact)
LPCTSTR dev_id = xmlGetAttrValue(key_node, L"rid");
DWORD dev_id_int = _wtoi(dev_id);
if (dev_id_int == own_id)
+ {
encrypted_key_base64 = XmlGetText(key_node);
+ break;
+ }
}
if (!encrypted_key_base64)
return; //node does not contain key for our device
@@ -1432,17 +1443,58 @@ void CJabberProto::OmemoHandleMessage(HXML node, MCONTACT hContact)
break;
}
}
-/* int dec_success = 0;
- const EVP_CIPHER *cipher = EVP_aes_128_gcm();
- EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new(); */
+ char *out = nullptr;
+ {
+ int dec_success = 0;
+ unsigned int payload_len = 0;
+ int outl = 0, round_len = 0;
+ char *payload_base64 = mir_u2a(payload_base64w);
+ unsigned char *payload = (unsigned char*)mir_base64_decode(payload_base64, &payload_len);
+ mir_free(payload_base64);
+ unsigned char tag[16];
+ out = (char*)mir_alloc(payload_len + 1); //TODO: check this
+ const EVP_CIPHER *cipher = EVP_aes_128_gcm();
+ EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
+ EVP_DecryptInit(ctx, cipher, signal_buffer_data(decrypted_key), iv);
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag);
+ //EVP_DecryptInit(ctx, NULL, signal_buffer_data(decrypted_key), iv);
+ //EVP_DecryptUpdate(ctx, NULL, &howmany, AAD, aad_len);
+
+ for (;;)
+ {
+ EVP_DecryptUpdate(ctx, (unsigned char*)out + outl, &round_len, payload + outl, (payload_len >= 128) ? 128 : payload_len);
+ outl += round_len;
+ if (outl >= (int)payload_len - 128)
+ break;
+ }
+ EVP_DecryptUpdate(ctx, (unsigned char*)out + outl, &round_len, payload + outl, payload_len - outl);
+ outl += round_len;
+ out[outl] = 0;
+ mir_free(payload);
+ dec_success = EVP_DecryptFinal(ctx, tag, &round_len);
+ EVP_CIPHER_CTX_free(ctx);
+ if (!dec_success)
+ {
+ //return;
+ //TODO: handle decryption failure
+ }
+ }
+
+ time_t now = time(NULL);
+ if (!msgTime)
+ msgTime = now;
+
+ if (m_options.FixIncorrectTimestamps && (msgTime > now || (msgTime < (time_t)JabberGetLastContactMessageTime(hContact))))
+ msgTime = now;
-/* PROTORECVEVENT recv = { 0 };
+ pResourceStatus pFromResource(ResourceInfoFromJID(jid));
+ PROTORECVEVENT recv = { 0 };
recv.timestamp = (DWORD)msgTime;
- recv.szMessage = buf;
+ recv.szMessage = mir_utf8encode(out);
recv.lParam = (LPARAM)((pFromResource != NULL && m_options.EnableRemoteControl) ? pFromResource->m_tszResourceName : 0);
- ProtoChainRecvMsg(hContact, &recv); */
-
+ ProtoChainRecvMsg(hContact, &recv);
+ mir_free(out);
}
void CJabberProto::OmemoHandleDeviceList(HXML node)
@@ -1468,14 +1520,14 @@ void CJabberProto::OmemoHandleDeviceList(HXML node)
{
//check if our device exist
bool own_device_listed = false;
- DWORD own_id = omemo::GetOwnDeviceId(this);
+ unsigned int own_id = omemo::GetOwnDeviceId(this);
char setting_name[64];
HXML list_item;
int i = 0;
for (int p = 1; (list_item = XmlGetNthChild(node, L"device", p)) != NULL; p++, i++)
{
current_id_str = xmlGetAttrValue(list_item, L"id");
- current_id = _wtoi(current_id_str);
+ current_id = _wtol(current_id_str);
if (current_id == own_id)
own_device_listed = true;
mir_snprintf(setting_name, "OmemoDeviceId%d", i);
@@ -1503,7 +1555,7 @@ void CJabberProto::OmemoHandleDeviceList(HXML node)
for (int p = 1; (list_item = XmlGetNthChild(node, L"device", p)) != NULL; p++, i++)
{
current_id_str = xmlGetAttrValue(list_item, L"id");
- current_id = _wtoi(current_id_str);
+ current_id = _wtol(current_id_str);
mir_snprintf(setting_name, "OmemoDeviceId%d", i);
setDword(hContact, setting_name, current_id);
}
@@ -1526,7 +1578,7 @@ void CJabberProto::OmemoHandleDeviceList(HXML node)
void CJabberProto::OmemoAnnounceDevice()
{
// check "OmemoDeviceId%d" for own id and send updated list if not exist
- DWORD own_id = omemo::GetOwnDeviceId(this);
+ unsigned int own_id = omemo::GetOwnDeviceId(this);
char setting_name[64];
for (int i = 0;; ++i) {
@@ -1659,7 +1711,7 @@ bool CJabberProto::OmemoCheckSession(MCONTACT hContact)
bool pending_check = false;
char setting_name[64], setting_name2[64];
- DWORD id = 0;
+ unsigned int id = 0;
bool checked = false;
int i = 0;
@@ -1704,11 +1756,40 @@ void CJabberProto::OmemoOnIqResultGetBundle(HXML iqNode, CJabberIqInfo *pInfo)
if (iqNode == NULL)
return;
+ LPCTSTR jid = XmlGetAttrValue(iqNode, L"from");
+ MCONTACT hContact = HContactFromJID(jid);
+
const wchar_t *type = XmlGetAttrValue(iqNode, L"type");
if (mir_wstrcmp(type, L"result"))
+ {
+ //failed to get bundle, do not try to build session
+ unsigned int *dev_id = (unsigned int*)pInfo->GetUserData();
+ char setting_name[64], setting_name2[64];
+ DWORD id = 0;
+ int i = 0;
+
+ mir_snprintf(setting_name, "OmemoDeviceId%d", i);
+ mir_snprintf(setting_name2, "%sChecked", setting_name);
+ db_set_resident(m_szModuleName, setting_name2);
+ id = getDword(hContact, setting_name, 0);
+ while (id)
+ {
+ if (id == *dev_id)
+ {
+ setByte(hContact, setting_name2, 1);
+ break;
+ }
+ i++;
+ mir_snprintf(setting_name, "OmemoDeviceId%d", i);
+ mir_snprintf(setting_name2, "%sChecked", setting_name);
+ db_set_resident(m_szModuleName, setting_name2);
+ id = getDword(hContact, setting_name, 0);
+ }
+
return;
+ }
- LPCTSTR jid = XmlGetAttrValue(iqNode, L"from");
+
HXML pubsub = XmlGetChildByTag(iqNode, L"pubsub", L"xmlns", L"http://jabber.org/protocol/pubsub");
if (!pubsub)
@@ -1756,7 +1837,7 @@ void CJabberProto::OmemoOnIqResultGetBundle(HXML iqNode, CJabberIqInfo *pInfo)
if (!preKeyId)
return;
- MCONTACT hContact = HContactFromJID(jid);
+
if (!omemo::create_session_store(hContact, device_id, this))
return; //failed to create session store
@@ -1764,50 +1845,50 @@ void CJabberProto::OmemoOnIqResultGetBundle(HXML iqNode, CJabberIqInfo *pInfo)
if (!omemo::build_session(hContact, jid, device_id, preKeyId, preKeyPublic, signedPreKeyId, signedPreKeyPublic, signedPreKeySignature, identityKey))
return; //failed to build signal(omemo) session
- unsigned int *dev_id = (unsigned int*)pInfo->GetUserData();
- char setting_name[64], setting_name2[64];
- DWORD id = 0;
-// bool checked = false;
- int i = 0;
-
- mir_snprintf(setting_name, "OmemoDeviceId%d", i);
- mir_snprintf(setting_name2, "%sChecked", setting_name);
- db_set_resident(m_szModuleName, setting_name2);
- id = getDword(hContact, setting_name, 0);
- while (id)
{
- if (id == *dev_id)
- {
- setByte(hContact, setting_name2, 1);
- break;
- }
- i++;
+ unsigned int *dev_id = (unsigned int*)pInfo->GetUserData();
+ char setting_name[64], setting_name2[64];
+ DWORD id = 0;
+ int i = 0;
+
mir_snprintf(setting_name, "OmemoDeviceId%d", i);
mir_snprintf(setting_name2, "%sChecked", setting_name);
db_set_resident(m_szModuleName, setting_name2);
id = getDword(hContact, setting_name, 0);
+ while (id)
+ {
+ if (id == *dev_id)
+ {
+ setByte(hContact, setting_name2, 1);
+ break;
+ }
+ i++;
+ mir_snprintf(setting_name, "OmemoDeviceId%d", i);
+ mir_snprintf(setting_name2, "%sChecked", setting_name);
+ db_set_resident(m_szModuleName, setting_name2);
+ id = getDword(hContact, setting_name, 0);
+ }
}
}
-void CJabberProto::OmemoEncryptMessage(XmlNode &msg, const wchar_t *msg_text, MCONTACT hContact)
+unsigned int CJabberProto::OmemoEncryptMessage(XmlNode &msg, const wchar_t *msg_text, MCONTACT hContact)
{
const EVP_CIPHER *cipher = EVP_aes_128_gcm();
- unsigned char key[16], iv[12], tag[16], aad[48];
+ unsigned char key[16], iv[12], tag[16]/*, aad[48]*/;
Utils_GetRandom(key, _countof_portable(key));
Utils_GetRandom(iv, _countof_portable(iv));
Utils_GetRandom(tag, _countof_portable(tag));
- Utils_GetRandom(aad, _countof_portable(aad));
+ //Utils_GetRandom(aad, _countof_portable(aad));
EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, _countof_portable(iv), NULL);
EVP_EncryptInit(ctx, cipher, key, iv);
char *in = mir_u2a(msg_text), *out;
const size_t inl = strlen(in);
int tmp_len = 0, outl;
- EVP_EncryptUpdate(ctx, NULL, &outl, aad, _countof_portable(aad));
+ //EVP_EncryptUpdate(ctx, NULL, &outl, aad, _countof_portable(aad));
out = (char*)mir_alloc(inl + _countof_portable(key) - 1);
- //TODO: add gcm tag
for (;;)
{
EVP_EncryptUpdate(ctx, (unsigned char*)(out + tmp_len), &outl, (unsigned char*)(in + tmp_len), (int)(inl - tmp_len));
@@ -1830,7 +1911,7 @@ void CJabberProto::OmemoEncryptMessage(XmlNode &msg, const wchar_t *msg_text, MC
mir_free(payload_base64w);
HXML header = encrypted << XCHILD(L"header");
header << XATTRI64(L"sid", omemo::GetOwnDeviceId(this));
-
+ unsigned int session_count = 0;
for (std::map<unsigned int, omemo::omemo_session_jabber_internal_ptrs>::iterator i = omemo::sessions_internal[hContact].begin(), end = omemo::sessions_internal[hContact].end(); i != end; i++)
{
if (!i->second.cipher)
@@ -1853,6 +1934,7 @@ void CJabberProto::OmemoEncryptMessage(XmlNode &msg, const wchar_t *msg_text, MC
xmlSetText(key_node, key_base64w);
mir_free(key_base64w);
SIGNAL_UNREF(encrypted_key);
+ session_count++;
}
}
HXML iv_node = header << XCHILD(L"iv");
@@ -1862,6 +1944,7 @@ void CJabberProto::OmemoEncryptMessage(XmlNode &msg, const wchar_t *msg_text, MC
xmlSetText(iv_node, iv_base64w);
mir_free(iv_base64w);
msg << XCHILDNS(L"store", L"urn:xmpp:hints");
+ return session_count;
}
bool CJabberProto::OmemoIsEnabled(MCONTACT /*hContact*/)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 23:30:39 +0000