//TODO: make this function not suck.
static void doFriends(void)
{
/* TODO: add incoming connections and some other stuff. */
uint32_t i;
int len;
uint8_t temp[MAX_DATA_SIZE];
for (i = 0; i < numfriends; ++i) {
if (friendlist[i].status == FRIEND_ADDED) {
int fr = send_friendrequest(friendlist[i].client_id, friendlist[i].info, friendlist[i].info_size);
if (fr == 0) /* TODO: This needs to be fixed so that it sends the friend requests a couple of times in case of packet loss */
set_friend_status(i, FRIEND_REQUESTED);
else if (fr > 0)
set_friend_status(i, FRIEND_REQUESTED);
}
if (friendlist[i].status == FRIEND_REQUESTED || friendlist[i].status == FRIEND_CONFIRMED) { /* friend is not online */
if (friendlist[i].status == FRIEND_REQUESTED) {
if (friendlist[i].friend_request_id + 10 < unix_time()) { /*I know this is hackish but it should work.*/
send_friendrequest(friendlist[i].client_id, friendlist[i].info, friendlist[i].info_size);
friendlist[i].friend_request_id = unix_time();
}
}
IP_Port friendip = DHT_getfriendip(friendlist[i].client_id);
switch (is_cryptoconnected(friendlist[i].crypt_connection_id)) {
case 0:
if (friendip.ip.i > 1)
friendlist[i].crypt_connection_id = crypto_connect(friendlist[i].client_id, friendip);
break;
case 3: /* Connection is established */
set_friend_status(i, FRIEND_ONLINE);
friendlist[i].name_sent = 0;
friendlist[i].userstatus_sent = 0;
friendlist[i].statusmessage_sent = 0;
break;
case 4:
crypto_kill(friendlist[i].crypt_connection_id);
friendlist[i].crypt_connection_id = -1;
break;
default:
break;
}
}
while (friendlist[i].status == FRIEND_ONLINE) { /* friend is online */
if (friendlist[i].name_sent == 0) {
if (m_sendname(i, self_name, self_name_length))
friendlist[i].name_sent = 1;
}
if (friendlist[i].statusmessage_sent == 0) {
if (send_statusmessage(i, self_statusmessage, self_statusmessage_length))
friendlist[i].statusmessage_sent = 1;
}
if (friendlist[i].userstatus_sent == 0) {
if (send_userstatus(i, self_userstatus))
friendlist[i].userstatus_sent = 1;
}
len = read_cryptpacket(friendlist[i].crypt_connection_id, temp);
uint8_t packet_id = temp[0];
uint8_t* data = temp + 1;
int data_length = len - 1;
if (len > 0) {
switch (packet_id) {
case PACKET_ID_NICKNAME: {
if (data_length >= MAX_NAME_LENGTH || data_length == 0)
break;
if(friend_namechange_isset)
friend_namechange(i, data, data_length);
memcpy(friendlist[i].name, data, data_length);
friendlist[i].name[data_length - 1] = 0; /* make sure the NULL terminator is present. */
break;
}
case PACKET_ID_STATUSMESSAGE: {
if (data_length == 0)
break;
uint8_t *status = calloc(MIN(data_length, MAX_STATUSMESSAGE_LENGTH), 1);
memcpy(status, data, MIN(data_length, MAX_STATUSMESSAGE_LENGTH));
if (friend_statusmessagechange_isset)
friend_statusmessagechange(i, status, MIN(data_length, MAX_STATUSMESSAGE_LENGTH));
set_friend_statusmessage(i, status, MIN(data_length, MAX_STATUSMESSAGE_LENGTH));
free(status);
break;
}
case PACKET_ID_USERSTATUS: {
if (data_length != 1)
break;
USERSTATUS status = data[0];
if (friend_userstatuschange_isset)
friend_userstatuschange(i, status);
set_friend_userstatus(i, status);
break;
}
case PACKET_ID_MESSAGE: {
uint8_t *message_id = data;
uint8_t message_id_length = 4;
uint8_t *message = data + message_id_length;
uint16_t message_length = data_length - message_id_length;
if (friendlist[i].receives_read_receipts) {
write_cryptpacket_id(i, PACKET_ID_RECEIPT, message_id, message_id_length);
}
if (friend_message_isset)
(*friend_message)(i, message, message_length);
break;
}
case PACKET_ID_ACTION: {
if (friend_action_isset)
(*friend_action)(i, data, data_length);
break;
}
case PACKET_ID_RECEIPT: {
uint32_t msgid;
if (data_length < sizeof(msgid))
break;
memcpy(&msgid, data, sizeof(msgid));
msgid = ntohl(msgid);
if (read_receipt_isset)
(*read_receipt)(i, msgid);
break;
}
}
} else {
if (is_cryptoconnected(friendlist[i].crypt_connection_id) == 4) { /* if the connection timed out, kill it */
crypto_kill(friendlist[i].crypt_connection_id);
friendlist[i].crypt_connection_id = -1;
set_friend_status(i, FRIEND_CONFIRMED);
}
break;
}
}
}
}
//TODO: make this function not suck.
void doFriends(Messenger *m)
{
/* TODO: add incoming connections and some other stuff. */
uint32_t i;
int len;
uint8_t temp[MAX_DATA_SIZE];
uint64_t temp_time = unix_time();
for (i = 0; i < m->numfriends; ++i) {
if (m->friendlist[i].status == FRIEND_ADDED) {
int fr = send_friendrequest(m->friendlist[i].client_id, m->friendlist[i].friendrequest_nospam, m->friendlist[i].info,
m->friendlist[i].info_size);
if (fr >= 0) {
set_friend_status(m, i, FRIEND_REQUESTED);
m->friendlist[i].friendrequest_lastsent = temp_time;
}
}
if (m->friendlist[i].status == FRIEND_REQUESTED
|| m->friendlist[i].status == FRIEND_CONFIRMED) { /* friend is not online */
if (m->friendlist[i].status == FRIEND_REQUESTED) {
/* If we didn't connect to friend after successfully sending him a friend request the request is deemed
unsuccessful so we set the status back to FRIEND_ADDED and try again.*/
if (m->friendlist[i].friendrequest_lastsent + m->friendlist[i].friendrequest_timeout < temp_time) {
set_friend_status(m, i, FRIEND_ADDED);
/* Double the default timeout everytime if friendrequest is assumed to have been
sent unsuccessfully. */
m->friendlist[i].friendrequest_timeout *= 2;
}
}
IP_Port friendip = DHT_getfriendip(m->friendlist[i].client_id);
switch (is_cryptoconnected(m->friendlist[i].crypt_connection_id)) {
case 0:
if (friendip.ip.i > 1)
m->friendlist[i].crypt_connection_id = crypto_connect(m->friendlist[i].client_id, friendip);
break;
case 3: /* Connection is established */
set_friend_status(m, i, FRIEND_ONLINE);
m->friendlist[i].name_sent = 0;
m->friendlist[i].userstatus_sent = 0;
m->friendlist[i].statusmessage_sent = 0;
m->friendlist[i].ping_lastrecv = temp_time;
break;
case 4:
crypto_kill(m->friendlist[i].crypt_connection_id);
m->friendlist[i].crypt_connection_id = -1;
break;
default:
break;
}
}
while (m->friendlist[i].status == FRIEND_ONLINE) { /* friend is online */
if (m->friendlist[i].name_sent == 0) {
if (m_sendname(m, i, m->name, m->name_length))
m->friendlist[i].name_sent = 1;
}
if (m->friendlist[i].statusmessage_sent == 0) {
if (send_statusmessage(m, i, m->statusmessage, m->statusmessage_length))
m->friendlist[i].statusmessage_sent = 1;
}
if (m->friendlist[i].userstatus_sent == 0) {
if (send_userstatus(m, i, m->userstatus))
m->friendlist[i].userstatus_sent = 1;
}
if (m->friendlist[i].ping_lastsent + FRIEND_PING_INTERVAL < temp_time) {
send_ping(m, i);
}
len = read_cryptpacket(m->friendlist[i].crypt_connection_id, temp);
uint8_t packet_id = temp[0];
uint8_t *data = temp + 1;
int data_length = len - 1;
if (len > 0) {
switch (packet_id) {
case PACKET_ID_PING: {
m->friendlist[i].ping_lastrecv = temp_time;
break;
}
case PACKET_ID_NICKNAME: {
if (data_length >= MAX_NAME_LENGTH || data_length == 0)
break;
if (m->friend_namechange)
m->friend_namechange(m, i, data, data_length, m->friend_namechange_userdata);
memcpy(m->friendlist[i].name, data, data_length);
m->friendlist[i].name[data_length - 1] = 0; /* make sure the NULL terminator is present. */
break;
}
case PACKET_ID_STATUSMESSAGE: {
if (data_length == 0)
break;
uint8_t *status = calloc(MIN(data_length, MAX_STATUSMESSAGE_LENGTH), 1);
memcpy(status, data, MIN(data_length, MAX_STATUSMESSAGE_LENGTH));
if (m->friend_statusmessagechange)
m->friend_statusmessagechange(m, i, status, MIN(data_length, MAX_STATUSMESSAGE_LENGTH),
m->friend_statuschange_userdata);
set_friend_statusmessage(m, i, status, MIN(data_length, MAX_STATUSMESSAGE_LENGTH));
free(status);
break;
}
case PACKET_ID_USERSTATUS: {
if (data_length != 1)
break;
USERSTATUS status = data[0];
if (m->friend_userstatuschange)
m->friend_userstatuschange(m, i, status, m->friend_userstatuschange_userdata);
set_friend_userstatus(m, i, status);
break;
}
case PACKET_ID_MESSAGE: {
uint8_t *message_id = data;
uint8_t message_id_length = 4;
uint8_t *message = data + message_id_length;
uint16_t message_length = data_length - message_id_length;
if (m->friendlist[i].receives_read_receipts) {
write_cryptpacket_id(m, i, PACKET_ID_RECEIPT, message_id, message_id_length);
}
if (m->friend_message)
(*m->friend_message)(m, i, message, message_length, m->friend_message_userdata);
break;
}
case PACKET_ID_ACTION: {
if (m->friend_action)
(*m->friend_action)(m, i, data, data_length, m->friend_action_userdata);
break;
}
case PACKET_ID_RECEIPT: {
uint32_t msgid;
if (data_length < sizeof(msgid))
break;
memcpy(&msgid, data, sizeof(msgid));
msgid = ntohl(msgid);
if (m->read_receipt)
(*m->read_receipt)(m, i, msgid, m->read_receipt_userdata);
break;
}
}
} else {
if (is_cryptoconnected(m->friendlist[i].crypt_connection_id) == 4) { /* if the connection timed out, kill it */
crypto_kill(m->friendlist[i].crypt_connection_id);
m->friendlist[i].crypt_connection_id = -1;
set_friend_status(m, i, FRIEND_CONFIRMED);
}
break;
}
if (m->friendlist[i].ping_lastrecv + FRIEND_CONNECTION_TIMEOUT < temp_time) {
/* if we stopped recieving ping packets kill it */
crypto_kill(m->friendlist[i].crypt_connection_id);
m->friendlist[i].crypt_connection_id = -1;
set_friend_status(m, i, FRIEND_CONFIRMED);
}
}
}
}
