Status
loginServerGetLoginPackage(const Lobby &lobby,
DataSlice LP1, DataSlice LRA1, LoginPackage &result, JsonPtr &rootKeyBox)
{
const auto url = ABC_SERVER_ROOT "/account/loginpackage/get";
ServerRequestJson json;
ABC_CHECK(json.setup(lobby));
if (LP1.size())
ABC_CHECK(json.authKeySet(base64Encode(LP1)));
if (LRA1.size())
ABC_CHECK(json.recoveryAuthKeySet(base64Encode(LRA1)));
HttpReply reply;
ABC_CHECK(AirbitzRequest().post(reply, url, json.encode()));
ServerReplyJson replyJson;
ABC_CHECK(replyJson.decode(reply.body));
ABC_CHECK(replyJson.ok());
struct ResultJson:
public JsonObject
{
ABC_JSON_CONSTRUCTORS(ResultJson, JsonObject)
ABC_JSON_STRING(package, "login_package", nullptr)
ABC_JSON_VALUE(rootKeyBox, "rootKeyBox", JsonPtr)
} resultJson(replyJson.results());
ABC_CHECK(resultJson.packageOk());
ABC_CHECK(result.decode(resultJson.package()));
if (json_is_object(resultJson.rootKeyBox().get()))
rootKeyBox = resultJson.rootKeyBox();
return Status();
}
Status
loginServerChangePassword(const Login &login,
DataSlice newLP1, DataSlice newLRA1,
const CarePackage &carePackage, const LoginPackage &loginPackage)
{
const auto url = ABC_SERVER_ROOT "/account/password/update";
JsonPtr json(json_pack("{ss, ss, ss, ss, ss}",
ABC_SERVER_JSON_L1_FIELD, base64Encode(login.lobby.authId()).c_str(),
ABC_SERVER_JSON_LP1_FIELD, base64Encode(login.authKey()).c_str(),
ABC_SERVER_JSON_NEW_LP1_FIELD, base64Encode(newLP1).c_str(),
ABC_SERVER_JSON_CARE_PACKAGE_FIELD, carePackage.encode().c_str(),
ABC_SERVER_JSON_LOGIN_PACKAGE_FIELD, loginPackage.encode().c_str()));
if (newLRA1.size())
{
json_object_set_new(json.get(), ABC_SERVER_JSON_NEW_LRA1_FIELD,
json_string(base64Encode(newLRA1).c_str()));
}
HttpReply reply;
ABC_CHECK(AirbitzRequest().post(reply, url, json.encode()));
ServerReplyJson replyJson;
ABC_CHECK(replyJson.decode(reply.body));
ABC_CHECK(replyJson.ok());
return Status();
}
/**
* Encodes data in an arbitrary power-of-2 base.
* @param Bytes number of bytes per chunk of characters.
* @param Chars number of characters per chunk.
*/
template<unsigned Bytes, unsigned Chars> std::string
chunkEncode(DataSlice data, const char *alphabet)
{
std::string out;
auto chunks = (data.size() + Bytes - 1) / Bytes; // Rounding up
out.reserve(Chars * chunks);
constexpr unsigned shift = 8 * Bytes / Chars; // Bits per character
uint16_t buffer = 0; // Bits waiting to be written out, MSB first
int bits = 0; // Number of bits currently in the buffer
auto i = data.begin();
while (i != data.end() || 0 < bits)
{
// Reload the buffer if we need more bits:
if (i != data.end() && bits < shift)
{
buffer |= *i++ << (8 - bits);
bits += 8;
}
// Write out the most-significant bits in the buffer:
out += alphabet[buffer >> (16 - shift)];
buffer <<= shift;
bits -= shift;
}
// Pad the final string to a multiple of the chunk size:
out.append(-out.size() % Chars, '=');
return out;
}
std::string
toString(DataSlice slice)
{
// Due to a bug, lots of AirBitz encrypted blobs end with a null byte.
// Get rid of those:
auto size = slice.size();
if (0 < size && !slice.data()[size - 1])
size--;
return std::string(reinterpret_cast<const char *>(slice.data()), size);
}
Status
ScryptSnrp::hash(DataChunk &result, DataSlice data, size_t size) const
{
DataChunk out(size);
int rc = crypto_scrypt(data.data(), data.size(),
salt.data(), salt.size(), n, r, p, out.data(), size);
if (rc)
return ABC_ERROR(ABC_CC_ScryptError, "Error calculating Scrypt hash");
result = std::move(out);
return Status();
}
Status
loginServerChangePassword(const Login &login,
DataSlice newLP1, DataSlice newLRA1,
const CarePackage &carePackage,
const LoginPackage &loginPackage)
{
const auto url = ABC_SERVER_ROOT "/v1/account/password/update";
ServerRequestJson json;
ABC_CHECK(json.setup(login));
ABC_CHECK(json.set(ABC_SERVER_JSON_NEW_LP1_FIELD, base64Encode(newLP1)));
ABC_CHECK(json.set(ABC_SERVER_JSON_CARE_PACKAGE_FIELD, carePackage.encode()));
ABC_CHECK(json.set(ABC_SERVER_JSON_LOGIN_PACKAGE_FIELD, loginPackage.encode()));
if (newLRA1.size())
{
ABC_CHECK(json.set(ABC_SERVER_JSON_NEW_LRA1_FIELD, base64Encode(newLRA1)));
}
HttpReply reply;
ABC_CHECK(AirbitzRequest().post(reply, url, json.encode()));
ServerReplyJson replyJson;
ABC_CHECK(replyJson.decode(reply));
return Status();
}
/**
* Casts new-style data to an old-style U08Buf type.
* DANGER! THIS IS NOT CONST-CORRECT!
*/
inline U08Buf
toU08Buf(DataSlice slice)
{
return U08Buf(const_cast<uint8_t *>(slice.data()), slice.size());
}