/* Creates a new groupchat and puts it in the chats array.
*
* return group number on success.
* return -1 on failure.
*/
int add_groupchat(Group_Chats *g_c)
{
int groupnumber = create_group_chat(g_c);
if (groupnumber == -1)
return -1;
Group_c *g = &g_c->chats[groupnumber];
g->status = GROUPCHAT_STATUS_CONNECTED;
new_symmetric_key(g->identifier);
g->peer_number = 0; /* Founder is peer 0. */
memcpy(g->real_pk, g_c->m->net_crypto->self_public_key, crypto_box_PUBLICKEYBYTES);
addpeer(g_c, groupnumber, g->real_pk, g_c->m->dht->self_public_key, 0);
return groupnumber;
}
/* Join a group (you need to have been invited first.)
*
* returns group number on success
* returns -1 on failure.
*/
int join_groupchat(Group_Chats *g_c, int32_t friendnumber, const uint8_t *data, uint16_t length)
{
if (length != sizeof(uint16_t) + GROUP_IDENTIFIER_LENGTH)
return -1;
int friendcon_id = getfriendcon_id(g_c->m, friendnumber);
if (friendcon_id == -1)
return -1;
int groupnumber = create_group_chat(g_c);
if (groupnumber == -1)
return -1;
Group_c *g = &g_c->chats[groupnumber];
uint16_t group_num = htons(groupnumber);
g->status = GROUPCHAT_STATUS_VALID;
g->number_joined = -1;
memcpy(g->real_pk, g_c->m->net_crypto->self_public_key, crypto_box_PUBLICKEYBYTES);
uint8_t response[INVITE_RESPONSE_PACKET_SIZE];
response[0] = INVITE_RESPONSE_ID;
memcpy(response + 1, &group_num, sizeof(uint16_t));
memcpy(response + 1 + sizeof(uint16_t), data, sizeof(uint16_t) + GROUP_IDENTIFIER_LENGTH);
if (send_group_invite_packet(g_c->m, friendnumber, response, sizeof(response))) {
uint16_t other_groupnum;
memcpy(&other_groupnum, data, sizeof(other_groupnum));
other_groupnum = ntohs(other_groupnum);
memcpy(g->identifier, data + sizeof(uint16_t), GROUP_IDENTIFIER_LENGTH);
int close_index = add_conn_to_groupchat(g_c, friendcon_id, groupnumber, 0, 1);
if (close_index != -1) {
g->close[close_index].group_number = other_groupnum;
g->close[close_index].type = GROUPCHAT_CLOSE_ONLINE;
g->number_joined = friendcon_id;
}
send_peer_query(g_c, friendcon_id, other_groupnum);
return groupnumber;
} else {
g->status = GROUPCHAT_STATUS_NONE;
return -1;
}
}
