/**
* @brief Create a Tox ID from a QString.
*
* If the given rawId is not a valid Tox ID, but can be a Public Key then:
* publicKey == rawId and noSpam == 0 == checkSum.
* If the given rawId isn't a valid Public Key or Tox ID a ToxId with all zero bytes is created.
*
* @param id Tox ID string to convert to ToxId object
*/
ToxId::ToxId(const QString& id)
{
// TODO: remove construction from PK only
if (isToxId(id)) {
toxId = QByteArray::fromHex(id.toLatin1());
} else if (id.length() >= PUBLIC_KEY_HEX_CHARS) {
toxId = QByteArray::fromHex(id.left(PUBLIC_KEY_HEX_CHARS).toLatin1());
} else {
toxId = QByteArray(); // invalid id string
}
}
void ToxId::constructToxId(const QByteArray& rawId)
{
// TODO: remove construction from PK only
if (rawId.length() == TOX_SECRET_KEY_SIZE) {
toxId = QByteArray(rawId); // construct from PK only
} else if (rawId.length() == TOX_ADDRESS_SIZE && isToxId(rawId.toHex().toUpper())) {
toxId = QByteArray(rawId); // construct from full toxid
} else {
toxId = QByteArray(); // invalid id
}
}
/**
@brief Create a Tox ID from QString.
If the given id is not a valid Tox ID, then:
publicKey == id and noSpam == "" == checkSum.
@param id Tox ID string to convert to ToxId object
*/
ToxId::ToxId(const QString &id)
{
if (isToxId(id))
{
publicKey = id.left(TOX_ID_PUBLIC_KEY_LENGTH);
noSpam = id.mid(TOX_ID_PUBLIC_KEY_LENGTH, TOX_ID_NO_SPAM_LENGTH);
checkSum = id.mid(TOX_ID_PUBLIC_KEY_LENGTH + TOX_ID_NO_SPAM_LENGTH, TOX_ID_CHECKSUM_LENGTH);
}
else
{
publicKey = id;
}
}
void AddFriendForm::onSendTriggered()
{
QString id = toxId.text().trimmed();
if (id.isEmpty()) {
showWarning(tr("Please fill in a valid Tox ID","Tox ID of the friend you're sending a friend request to"));
} else if (isToxId(id)) {
emit friendRequested(id, getMessage());
this->toxId.setText("");
this->message.setText("");
} else {
id = id.replace("@", "._tox.");
dns.setName(id);
dns.lookup();
}
}
void AddFriendForm::handleDnsLookup()
{
const QString idKeyWord("id=");
if (dns.error() == QDnsLookup::NotFoundError) {
showWarning(tr("This address does not exist","The DNS gives the Tox ID associated to toxme.se addresses"));
return;
}
else if (dns.error() != QDnsLookup::NoError) {
showWarning(tr("Error while looking up DNS","The DNS gives the Tox ID associated to toxme.se addresses"));
return;
}
const QList<QDnsTextRecord> textRecords = dns.textRecords();
if (textRecords.length() != 1) {
showWarning(tr("Unexpected number of text records", "Error with the DNS"));
return;
}
const QList<QByteArray> textRecordValues = textRecords.first().values();
if (textRecordValues.length() != 1) {
showWarning(tr("Unexpected number of values in text record", "Error with the DNS"));
return;
}
const QString entry(textRecordValues.first());
int idx = entry.indexOf(idKeyWord);
if (idx < 0) {
showWarning(tr("The DNS lookup does not contain any Tox ID", "Error with the DNS"));
return;
}
idx += idKeyWord.length();
if (entry.length() < idx + static_cast<int>(TOX_ID_LENGTH)) {
showWarning(tr("The DNS lookup does not contain a valid Tox ID", "Error with the DNS"));
return;
}
const QString friendAdress = entry.mid(idx, TOX_ID_LENGTH);
if (!isToxId(friendAdress)) {
showWarning(tr("The DNS lookup does not contain a valid Tox ID", "Error with the DNS"));
return;
}
// finally we got it
emit friendRequested(friendAdress, getMessage());
}
void AddFriendForm::onSendTriggered()
{
QString id = toxId.text().trimmed();
if (id.isEmpty()) {
showWarning(tr("Please fill in a valid Tox ID","Tox ID of the friend you're sending a friend request to"));
} else if (isToxId(id)) {
if (id.toUpper() == Core::getInstance()->getSelfId().toString().toUpper())
showWarning(tr("You can't add yourself as a friend!","When trying to add your own Tox ID as friend"));
else
emit friendRequested(id, getMessage());
this->toxId.setText("");
this->message.setText("");
} else {
id = id.replace("@", "._tox.");
dns.setName(id);
dns.lookup();
}
}
void AddFriendForm::handleDnsLookup()
{
const QString idKeyWord("id="), verKeyWord("v=");
if (dns.error() == QDnsLookup::NotFoundError) {
showWarning(tr("This address does not exist","The DNS gives the Tox ID associated to toxme.se addresses"));
return;
}
else if (dns.error() != QDnsLookup::NoError) {
showWarning(tr("Error while looking up DNS","The DNS gives the Tox ID associated to toxme.se addresses"));
return;
}
const QList<QDnsTextRecord> textRecords = dns.textRecords();
if (textRecords.length() != 1) {
showWarning(tr("Unexpected number of text records", "Error with the DNS"));
return;
}
const QList<QByteArray> textRecordValues = textRecords.first().values();
if (textRecordValues.length() != 1) {
showWarning(tr("Unexpected number of values in text record", "Error with the DNS"));
return;
}
const QString entry(textRecordValues.first());
// Check toxdns protocol version, we only support tox1 for now
int verx = entry.indexOf(verKeyWord);
if (verx) {
verx += verKeyWord.size();
int verend = entry.indexOf(';', verx);
if (verend)
{
QString ver = entry.mid(verx, verend);
if (ver != "tox1")
{
showWarning(tr("The version of Tox DNS used by this server is not supported", "Error with the DNS"));
return;
}
}
}
int idx = entry.indexOf(idKeyWord);
if (idx < 0) {
showWarning(tr("The DNS lookup does not contain any Tox ID", "Error with the DNS"));
return;
}
idx += idKeyWord.length();
if (entry.length() < idx + static_cast<int>(TOX_ID_LENGTH)) {
showWarning(tr("The DNS lookup does not contain a valid Tox ID", "Error with the DNS"));
return;
}
const QString friendAdress = entry.mid(idx, TOX_ID_LENGTH);
if (!isToxId(friendAdress)) {
showWarning(tr("The DNS lookup does not contain a valid Tox ID", "Error with the DNS"));
return;
}
// finally we got it
emit friendRequested(friendAdress, getMessage());
this->toxId.setText("");
this->message.setText("");
}
/**
* @brief Check, that id is a valid Tox ID.
* @param id Tox ID to check.
* @return True if id is a valid Tox ID, false otherwise.
* @note Validates the checksum.
*/
bool ToxId::isValidToxId(const QString& id)
{
return isToxId(id) && ToxId(id).isValid();
}