P3NG0/src/main.cpp

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#include <map>
#include <chrono>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <memory>
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#include <cmath>
#include <iomanip>
#include <random>
#include <string>
#include <sstream>
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#include <algorithm>
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#include <ctime>
#include <ctype.h>
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#include <stdlib.h>
#include <time.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#include <fcntl.h>
#include "strutils.h"
#include "client.h"
#include "verrors.h.h"
#include "cmds.h"
#include "props.h"
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std::chrono::time_point<std::chrono::system_clock> pingStart;
std::chrono::time_point<std::chrono::system_clock> pingEnd;
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static char* toLower(char* str) {
for(int i = 0; str[i]; i++){
str[i] = std::tolower(str[i]);
}
return str;
}
static std::string toLower(std::string str) {
std::transform(str.begin(), str.end(), str.begin(),
[](unsigned char c){ return std::tolower(c); });
return str;
}
static char* trim(char *str) {
char *end;
while(isspace(*str))
str++;
if(*str == 0)
return str;
end = str + strnlen(str, 128) - 1;
while(end > str && isspace(*end))
end--;
*(end+1) = '\0';
return str;
}
int main(int argc, char const* argv[]) {
// Setting config values.
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loadConfig();
autoInit();
while (autoOnline) {
while (!roomOnline) {}
sleep(1);
}
return deinit(0);
}
void loadConfig() {
conf = new PengoConfig();
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login_username = (conf.getValue("username", ""));
login_password = (conf.getValue("password", ""));
room = (conf.getValue("room", "GroundZero#Reception<dimension-1>"));
avatar = (conf.getValue("avatar", "avatar:pengo.mov"));
xPos = conf.getInt("xpos", 0);
yPos = conf.getInt("ypos", 0);
zPos = conf.getInt("zpos", 0);
direction = conf.getInt("direction", 0);
spin = conf.getInt("spin", 45);
keepAliveTime = conf.getInt("katime", 15);
debug = conf.getInt("debug", 0) == 1;
}
int deinit(int response) {
sendChatMessage(&roomsock, conf.getMessage("goodbye"));
if (roomOnline) sessExit(&roomsock);
roomOnline = false;
if (autoOnline) sessExit(&autosock);
autoOnline = false;
if (aRecv_t.joinable()) aRecv_t.detach();
if (rRecv_t.joinable()) rRecv_t.detach();
if (rKeepAlive_t.joinable()) rKeepAlive_t.detach();
close(autosock);
close(roomsock);
return response;
}
void autoInit() {
sockaddr_in auto_addr;
auto_addr.sin_family = AF_INET;
memcpy((void*)&auto_addr.sin_addr.s_addr, (void*)&autoserver, sizeof(roomserver));
auto_addr.sin_port = htons(autoport);
if ((autosock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
perror("AutoSock creation error");
if (connect(autosock, (struct sockaddr*)&auto_addr, sizeof(auto_addr)) < 0)
perror("AutoServ connection failed");
aRecv_t = std::thread(reciever, &autosock, autoport);
wsend(&autosock, new unsigned char[] {0x03, 0xff, CMD_PROPREQ}, 0);
printf("info: Connected to AutoServer: %i.%i.%i.%i:%i\n", autoserver[1], autoserver[1], autoserver[2], autoserver[3], autoport);
sessInit(&autosock, login_username, login_password);
autoOnline = true;
}
void roomInit() {
sockaddr_in room_addr;
room_addr.sin_family = AF_INET;
memcpy((void*)&room_addr.sin_addr.s_addr, (void*)&roomserver, sizeof(roomserver));
room_addr.sin_port = htons(roomport);
if ((roomsock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
perror("AutoSock creation error");
if ((connect(roomsock, (struct sockaddr*)&room_addr, sizeof(room_addr))) < 0)
perror("RoomServ connection failed");
wsend(&autosock, new unsigned char[] {0x03, 0xff, CMD_PROPREQ}, 0);
printf("info: Connected to RoomServer: %i.%i.%i.%i:%i\n", roomserver[1], roomserver[1], roomserver[2], roomserver[3], roomport);
roomOnline = true;
rRecv_t = std::thread(reciever, &roomsock, roomport);
sessInit(&roomsock, login_username, login_password);
sleep(1);
rKeepAlive_t = std::thread(roomKeepAlive);
rAutoMsg_t = std::thread(autoRandMessage);
}
void roomKeepAlive() {
while (roomOnline) {
if (direction >= 360) direction = 0;
else direction+=spin;
teleport(&roomsock, xPos, yPos, zPos, direction);
sleep(keepAliveTime); // So we don't auto-disconnect.
}
printf("warning: room keep alive disconnected!\n");
}
void autoRandMessage() {
int minTime = conf.getInt("minRandomMsgTime", 0);
int maxTime = conf.getInt("maxRandomMsgTime", 0);
int wait = 0;
sleep(2);
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sendChatMessage(&roomsock, conf.getMessage("startup"));
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if (minTime != 0) {
while (roomOnline) {
if (wait != 0) {
std::string newMsg = conf.getMessage("random");
if (debug) printf("debug: automsg: \"%s\"\n", newMsg.c_str());
sendChatMessage(&roomsock, newMsg);
}
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std::uniform_int_distribution<int> rno(minTime,maxTime);
wait = rno(rng);
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if (debug) printf("debug: waiting %i seconds for next message.\n", wait);
sleep(wait);
}
}
printf("warning: room auto-messenger disconnected! Ignore if minRandomMsgTime is 0.\n");
}
void reciever(int *sock, uint16_t port) {
unsigned char bufin[BUFFERSIZE] = {};
while (read(*sock, bufin, sizeof(bufin)) > 0) {
int p = 0;
more_in_buffer:
int buflen = bufin[p];
if (buflen == 0x00) continue;
memset(&(bufout[0]), 0, sizeof(bufout));
if (bufin[p+2] == CMD_PROPUPD && bufin[p+1] == 0xff) {
readPropertyList(bufin);
} else if (bufin[p+2] == CMD_CHATMSG && bufin[p+1] == 0x01) {
char *username = new char[32];
char *message = new char[250];
int offs = p+3;
offs++; // Ignore empty byte
int username_len = bufin[offs++];
memcpy(username, &bufin[offs], username_len);
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username[username_len] = 0;
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offs+=username_len;
int message_len = bufin[offs++];
memcpy(message, &bufin[offs++], message_len);
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message[message_len] = 0;
processText(sock, std::string(username), std::string(message));
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} else if (bufin[p+2] == CMD_WHISPER && bufin[p+1] == 0x01) {
char *username = new char[32];
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char *message = new char[250];
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int offs = p+3;
offs++; // Ignore empty byte
int username_len = bufin[offs++];
memcpy(username, &bufin[offs], username_len);
username[username_len] = 0;
offs+=username_len;
message = new char[250-username_len];
int message_len = bufin[offs++];
memcpy(message, &bufin[offs++], message_len);
message[message_len] = 0;
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processWhisper(sock, std::string(username), std::string(message));
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} else if (bufin[p+2] == CMD_REGOBJID && bufin[p+1] == 0xff) {
char *longID = new char[32];
int shortID;
int offs = p+3;
int long_len = bufin[offs++];
memcpy(longID, &bufin[offs], long_len);
longID[long_len] = 0;
offs+=long_len;
shortID = bufin[offs++];
if (longID != NULL || strlen(longID) > 0) {
Drone newDrone = *(new Drone(longID));
objects[shortID] = newDrone;
}
} else if (bufin[p+2] == CMD_SESSEXIT && bufin[p+1] == 0x01) {
autoOnline = roomOnline = false;
deinit(0);
} else if (bufin[p+2] == CMD_SESSINIT && bufin[p+1] == 0x01) {
std::map<char, char*> props = readOldPropertyList(&bufin[p]);
int errNo = VAR_OK;
for (auto const& p : props)
switch (p.first) {
case PROP_ERROR:
errNo = atoi(p.second);
break;
}
if (errNo != VAR_OK) {
char* errMsg = "UNKNOWN";
switch(errNo) {
case VAR_BAD_PASSWORD:
errMsg = "Invalid Password."; break;
case VAR_BAD_ACCOUNT:
errMsg = "Account is no longer valid."; break;
case VAR_BAD_IPADDRESS:
errMsg = "Invalid client IP address!"; break;
case VAR_NO_SUCH_USER:
errMsg = "User does not exist."; break;
}
printf("error: code %i received: %s\n", errNo, errMsg);
if (port == autoport) {
autoOnline = false;
} else {
roomOnline = false;
}
} else {
if (port != autoport) {
setAvatar(sock, avatar);
} else {
roomIDReq(sock, room);
}
}
} else if ((bufin[p+2] == CMD_ROOMID || bufin[p+2] == 0x1A) && bufin[p+1] == 0x01) {
char *longID = new char[255];
int shortID;
int offs = p+3;
int long_len = bufin[offs++];
memcpy(longID, &bufin[offs], long_len);
longID[long_len+1] = 0;
offs+=long_len;
shortID = ((uint16_t)bufin[offs++] << 8) | bufin[offs++];
roomID = shortID;
memcpy(&roomserver, new uint8_t[4]{ bufin[offs++], bufin[offs++], bufin[offs++], bufin[offs++] }, 4);
roomport = (bufin[offs++] << 8) | bufin[offs++];
if (port != autoport) sessExit(sock);
printf("info: Joining room %s\n", longID);
objects.erase(objects.begin(), objects.end());
roomInit();
teleport(sock, xPos, yPos, zPos, direction);
} else if (bufin[p+2] == CMD_ACTOR_DISAPPR && bufin[p+1] == 0xfe) {
for (int t = 3; t < buflen; t++) {
userExit(bufin[p+t]);
}
} else if (bufin[p+2] == CMD_ACTOR_APPR && bufin[p+1] == 0xfe) {
for (int t = 3; t < buflen; t+=11) {
userEnter(bufin[p+t]);
}
} else if (bufin[p+2] == CMD_TELEPORT && bufin[p+1] == 0xfe) {
int offs = p+3;
int objID = bufin[offs++];
int exitType = bufin[offs++];
int entryType = bufin[offs++];
int roomid = ((uint16_t)bufin[offs++] << 8) | bufin[offs++];
if (exitType != 0) {
// De-register ObjID and say user left.
userExit(objID);
} else {
if (entryType == 0) {
userExit(objID);
} else {
userEnter(objID);
}
}
} else {
//printf("*LEN[%i] OID[%i] TYPE[%02X] OFF[%i]\n", bufin[p], bufin[p+1], bufin[p+2], p);
}
if (buflen < sizeof(bufin) && bufin[bufin[p]] != 0x00) {
p += bufin[p];
goto more_in_buffer;
}
memset(&(bufin[0]), 0, sizeof(bufin));
}
}
void sessInit(int *sock, std::string username, std::string password) {
bufout[1] = 0x01;
bufout[2] = CMD_SESSINIT;
int l = 3;
// Username
bufout[l++] = 2;
bufout[l++] = username.length();
for (int c = 0; c < username.length(); c++)
bufout[l++] = username[c];
// Password
bufout[l++] = 6;
bufout[l++] = password.length();
for (int c = 0; c < password.length(); c++)
bufout[l++] = password[c];
// Protocol
char* pstr = new char[4];
sprintf(pstr, "%d", protocol);
bufout[l++] = 3;
bufout[l++] = strlen(pstr);
for (int c = 0; c < strlen(pstr); c++)
bufout[l++] = pstr[c];
// Avatars
char* avstr = new char[4];
sprintf(avstr, "%d", avatars);
bufout[l++] = 7;
bufout[l++] = strlen(avstr);
for (int c = 0; c < strlen(avstr); c++)
bufout[l++] = avstr[c];
// Version
bufout[l++] = 9;
bufout[l++] = strlen(version);
for (int c = 0; c < strlen(version); c++)
bufout[l++] = version[c];
// Version
bufout[l++] = 12;
bufout[l++] = 1;
bufout[l++] = '1';
bufout[0] = l;
bufout[l+1] = 0;
wsend(sock, bufout, 0);
}
void sessExit(int *sock) {
bufout[0] = 0x03;
bufout[1] = 0x01;
bufout[2] = CMD_SESSEXIT;
wsend(sock, bufout, 0);
}
void constructPropertyList(int type, std::map<int, char*> props, unsigned char* snd) {
snd[1] = 0x01;
snd[2] = type;
int l = 3;
for (auto const& p : props) {
snd[l++] = p.first;
snd[l++] = strlen(p.second);
for (int c = 0; c < strlen(p.second); c++)
snd[l++] = p.second[c];
}
snd[0] = l;
snd[l+1] = 0;
}
void readPropertyList(unsigned char* in) {
int l {3};
while (l < in[0]) {
char property[128] = {0};
int type = in[l++];
l++; l++;
int len = in[l++];
memcpy(property, &in[l], len);
property[len]='\0';
properties[type] = (char*)property;
l+=len;
}
}
std::map<char, char*> readOldPropertyList(unsigned char* in) {
std::map<char, char*> oldprops = {};
int l {3};
while (l < in[0]) {
char* value = new char[255];
char type = in[l++];
int len = in[l++];
memcpy(value, &in[l], len);
l+=len;
value[len]=0;
oldprops[type] = value;
}
return oldprops;
}
void setAvatar(int *sock, std::string avstr) {
unsigned char bufav[255] = {0};
int l = 1;
bufav[l++] = 0x01;
bufav[l++] = CMD_PROPSET;
bufav[l++] = 0x00;
bufav[l++] = 0x05;
bufav[l++] = 0x40;
bufav[l++] = 0x01;
bufav[l++] = avstr.length();
for (int c = 0; c < avstr.length(); c++)
bufav[l++] = avstr[c];
bufav[0] = l;
bufav[l+1] = 0;
wsend(sock, bufav, 0);
}
void roomIDReq(int *sock, std::string room) {
unsigned char bufrm[255] = {0};
bufrm[1] = 1;
bufrm[2] = CMD_ROOMIDREQ;
bufrm[3] = room.length();
int x = 4;
for (int z = 0; z < room.length(); z++)
bufrm[x++] = room[z];
bufrm[x++] = 0;
bufrm[0] = x;
wsend(sock, bufrm, 0);
}
void teleport(int *sock, int x, int y, int z, int rot) {
unsigned char buftp[16] = {0};
uint8_t _roomID[2];
uint8_t _x[2];
uint8_t _y[2];
uint8_t _z[2];
uint8_t _rot[2];
memcpy(_roomID, &roomID, sizeof(_roomID));
memcpy(_x, &x, sizeof(_x));
memcpy(_y, &y, sizeof(_y));
memcpy(_z, &z, sizeof(_z));
memcpy(_rot, &rot, sizeof(_rot));
buftp[0] = 0x0f;
buftp[1] = 0x01;
buftp[2] = CMD_TELEPORT;
buftp[4] = _roomID[0]; buftp[3] = _roomID[1];
buftp[5] = 0x00; buftp[6] = 0x01;
buftp[8] = _x[0]; buftp[7] = _x[1];
buftp[10] = _y[0]; buftp[9] = _y[1];
buftp[12] = _z[0]; buftp[11] = _z[1];
buftp[14] = _rot[0]; buftp[13] = _rot[1];
wsend(sock, buftp, 0);
}
void userEnter(char id) {
if (!((Drone)objects[id]).droneActive) {
objects[id].droneActive = true;
}
}
void userExit(char id) {
if (((Drone)objects[id]).droneActive) {
objects.erase((char)id);
}
}
bool strcontains(std::string needle, std::string haystack) {
bool found = haystack.find(needle) != std::string::npos;
if (debug) printf("debug: %s =?= %s == %i\n", needle.c_str(), haystack.c_str(), found?1:0);
return found;
}
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int vstrcontains(std::string needle, std::vector<std::string> haystack) {
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for (std::string str : haystack) {
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if (needle.rfind(str, 0) == 0) return str.length();
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}
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return 0;
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}
std::string getContainedWorld(std::map<std::string, std::string> worldlist, std::string input) {
for (auto world : worldlist) {
if (strcontains(world.first, input)) return world.second;
}
return "";
}
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std::string getResponse(std::map<std::string, std::string> responselist, std::string input) {
for (auto resp : responselist) {
if (strcontains(resp.first, input)) return resp.second;
}
return "";
}
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char* handleCommand(std::string from, std::string message) {
char *msgout = new char[255];
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if (strcontains("hi", message)) {
snprintf(msgout, 255, conf.getMessage("greet").c_str(), from.c_str());
} else if (strcontains("flip a coin", message)) {
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std::uniform_int_distribution<int> rno(0,1);
bool heads = rno(rng) == 1;
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snprintf(msgout, 255, "%s", heads?"Heads":"Tails");
} else if (strcontains("time", message)) {
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std::ostringstream nowStream;
auto now = std::chrono::system_clock::now();
std::time_t nowTime = std::chrono::system_clock::to_time_t(now);
nowStream << std::put_time(localtime(&nowTime), "%A %b %d, %Y at %I:%M %p %Z");
std::string curTime = nowStream.str();
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snprintf(msgout, 255, "It is %s.", curTime.c_str());
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} else if (strcontains("roll", message)) {
int dice = 6; int dstr;
try {
if ((dstr = message.find(" d")) != std::string::npos) {
std::string dino = message.substr(dstr+2, message.length());
if (debug) printf("debug: setting die to d%s\n", dino.c_str());
dice = std::stoi(dino);
}
} catch (const std::out_of_range& e) {
dice = 6;
}
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std::uniform_int_distribution<int> rno(1,dice);
int roll = rno(rng);
snprintf(msgout, 255, "%s rolled a %i.", from.c_str(), roll);
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} else if (strcontains("where is", message) || strcontains("where", message) || strcontains("mark to", message) || strcontains("show me", message)) {
std::string mark = getContainedWorld(conf.getWorlds(), message);
if (mark.length() > 0) {
snprintf(msgout, 255, conf.getMessage("whereis").c_str(), mark.c_str());
} else {
snprintf(msgout, 255, "Sorry! Not a clue.");
}
} else if (strcontains("many users", message) || strcontains("whos online", message) || strcontains("who is online", message) || strcontains("many online", message)) {
snprintf(msgout, 255, "There are %i users in this room.", objects.size());
} else if ((strcontains("what", message) || strcontains("who", message)) && strcontains("are you", message)) {
snprintf(msgout, 255, "%s", conf.getMessage("whoami").c_str());
} else if (strcontains("shutdown", message) && from == conf.getValue("owner", "")) {
exit(deinit(0));
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} else if (strcontains("reload", message) && from == conf.getValue("owner", "")) {
loadConfig();
snprintf(msgout, 255, "My configurations have been reloaded.");
} else {
std::string response;
if ((response = getResponse(conf.getResponses(), message)).length() > 0) {
snprintf(msgout, 255, "%s", response.c_str());
}
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}
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return msgout;
}
void processText(int *sock, std::string username, std::string message) {
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printf("info: received text from %s: \"%s\"\n", username.c_str(), message.c_str());
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char *msgout = new char[255];
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if (username.compare(login_username) != 0) {
message = toLower(message); // Make it a lowercase string so we can work with it.
int alen = 0;
// Someone has requested P3NG0s attention.
// We'll accept some variations.
if ((alen = vstrcontains(message, conf.getMessages("attention"))) > 0) {
// Strip out the attention. We got it.
message = message.substr(alen+1, message.length());
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msgout = handleCommand(username, message);
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if (strlen(msgout) > 1) sendChatMessage(sock, std::string(msgout));
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else if (strcontains("your commands", message) || strcontains("can you do", message)) {
char *whisout = new char[255];
snprintf(whisout, 255, "Check this out: %s", conf.getValue("help_url", "").c_str());
sendWhisperMessage(&roomsock, username, whisout);
snprintf(msgout, 255, "You have been whispered with a link that will help you.");
sendChatMessage(sock, msgout);
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} else if (strcontains("test ping", message)) {
pingStart = std::chrono::system_clock::now();
snprintf(msgout, 255, "Ping!");
sendChatMessage(sock, msgout);
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}
} else if (message == "ping") { // We'll accept a simple ping to pong.
sendChatMessage(sock, "Pong!");
}
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} else {
if (debug) printf("debug: processing own message: %s\n", message.c_str());
if (message.compare("Ping!") == 0) {
pingEnd = std::chrono::system_clock::now();
std::chrono::duration<double, std::milli> ping = pingEnd - pingStart;
snprintf(msgout, 255, "Response received in %ims.", ping.count());
sendChatMessage(sock, msgout);
}
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}
}
void processWhisper(int *sock, std::string username, std::string message) {
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printf("info: received whisper from %s: \"%s\"\n", username.c_str(), message.c_str());
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char *msgout = new char[255];
message = toLower(message);
if (message == "ping") {
sendWhisperMessage(sock, username, "Pong");
} else {
msgout = handleCommand(username, message);
if (strlen(msgout) > 0) sendWhisperMessage(sock, username, msgout);
}
}
void sendChatMessage(int *sock, std::string msg) {
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unsigned char msgout[255] = {0};
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int msglen = msg.length();
int k = 1;
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msgout[k++] = 1;
msgout[k++] = CMD_CHATMSG;
msgout[k++] = 0; bufout[k++] = 0;
msgout[k++] = msglen;
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for(int l = 0; l < msglen; l++)
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msgout[k++] = msg[l];
msgout[k] = 0;
msgout[0] = k;
wsend(&roomsock, msgout, 0);
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}
void sendWhisperMessage(int *sock, std::string to, std::string msg) {
whisper_repeat:
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unsigned char msgout[255] = {0};
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int k = 1;
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msgout[k++] = 0;
msgout[k++] = to.length();
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for(int l = 0; l < to.length(); l++)
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msgout[k++] = to[l];
msgout[k++] = CMD_WHISPER;
msgout[k++] = 0; bufout[k++] = 0;
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int msglen = std::min((int)msg.length(), 226);
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msgout[k++] = msglen;
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for(int l = 0; l < msglen; l++)
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msgout[k++] = msg[l];
msgout[k] = 0;
msgout[0] = k;
wsend(&roomsock, msgout, 0);
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// Check if the length is higher.
if (msg.length() > 226) {
msg = msg.substr(226, -1);
goto whisper_repeat;
}
}
int wsend(int *sock, unsigned char str[], int flags) {
if (debug) printf("debug: sending new packet of type %i and length %i.\n", str[2], str[0]);
return send(*sock, str, str[0], flags);
}