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main.c
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main.c
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/******************************************************/
/**
* @file main.c
* @brief Die Datei beinhaltet einen IRC Bot mit ein paar Zusatzfunktionen
*
* Projekt: Linuxprogrammierung 2012
* Dozent: Christoph Hahn
* Autor: Ralf Moter
*
* @todo Den Bot aufteilen in einzelle Modulle und gegebenfalls noch weiter funktionen einbauen
* @version 1.0
*
******************************************************/
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
/**
* includes für externe Libs
* libircclient 1.6
* sqlite 3071201
*/
#include "lib/libircclient/libircclient.h"
#include <sqlite3.h>
/**
* @struct irc_ctx_t
* @brief wird benötigt von der Libircclient zum managen von Bot Name und Bot Channels
*/
typedef struct
{
char* channel;
char* nick;
} irc_ctx_t;
/**
* @struct channel_settings
* @brief Das Struct ist dafür da um Channelsettings zu speichern
*/
typedef struct
{
char channel[32];
unsigned int settings;
}channel_settings;
//----------------- SQLite Variablen
/**
* @def SQLITEFILE
* @brief Der Dateiname für die SQLite Datei.
*/
#define SQLITEFILE "sqlite.sqlite"
sqlite3 *sqlitedb = NULL;
//----------------- Gloabel Variablen
/**
* @def LOGFILE
* @brief Der Dateiname für die Logfiles.
*/
#define LOGFILE "log.txt"
/**
* @def MAX_CHANNELS
* @brief Anzahl der maximalen channel die der Bot verwaltet.
*/
#define MAX_CHANNELS 10
irc_ctx_t ctx;
char * server = NULL;
short unsigned int port = 6667;
char botnick[100];
unsigned int currentChannelCount=0;
//-- Configfile Vars
#define BUFFER_SIZE 1000
char* filename = NULL;
char configLine[BUFFER_SIZE];
FILE *configFile;
//--- IRC Commands Defines
#define TOPIC_CHANGE 1
#define NICK_CHANGE 2
#define JOIN_PART 4
#define QUIT 8
#define GET_TIME 16
#define LOG_TXT 32
#define URL_SQL 64
//--- IRCC DEFAULT SETTINGS
#define DEFAULT_CHANNEL_SETTINGS 31
#define DEFAULT_PRIVMSG_SETTINGS 127
unsigned int privmsg_settings = DEFAULT_PRIVMSG_SETTINGS;
channel_settings chansettings[MAX_CHANNELS];
//-- Time Vars
#define GMT (+2)
time_t rawtime;
struct tm * ptm;
/*
* @fn void log_file (const char name[],const char channel[],const char text[])
* @brief Die Funktion schreibt in das Logfile.
* @param name Nickname von dem der was geschrieben hat.
* @param channel Channel wo was geschrieben wurde
* @param text Das was der geschrieben hat.
*/
void log_file(const char name[],const char channel[],const char text[])
{
time ( &rawtime );
ptm = gmtime ( &rawtime );
FILE * log = fopen(LOGFILE,"a");
fprintf(log,"%02d.%02d.%4d - %02d:%02d:%02d - <%s> %s: %s\n",ptm->tm_mday,ptm->tm_mon,ptm->tm_year+1900,(ptm->tm_hour+GMT)%24, ptm->tm_min,ptm->tm_sec,channel,name,text);
fclose(log);
}
/**
* @fn int configfileLaden(char* filen)
* @brief Läd die Botconfigs aus einem Externen File in den Bot rein.
* @param filen Filename von dem Configfile.
* @return int 0 = Fehler aufgetretten 1 = korrekt durchgeführt
*/
int configfileLaden(char * filen)
{
printf(" : - Lade aus %s \n",filen);
configFile = fopen(filen,"r");
if(configFile == NULL)
{
printf("X: - Bot konnte Configfile nicht lesen... \n");
fclose(configFile);
return 0;
}
char tmp[BUFFER_SIZE];
while(fgets(configLine, BUFFER_SIZE, configFile) != NULL)
{
sprintf(tmp,"%s",configLine);
}
fclose(configFile);
char params[10][100];
int i=0;
char *ptr =strtok(tmp,";");
while(ptr !=NULL)
{
sprintf(params[i],"%s",ptr);
ptr = strtok(NULL, ";");
i++;
}
server = params[0];
ctx.nick = params[1];
ctx.channel = params[2];
return 1;
}
/**
* @fn void setChannelSettings(const char channel[],const unsigned int settings)
* @brief Die Funktion sucht den passenden Channel in der Config und überschreibt seine Channelsettings.
* @param channel Channelname zum editieren.
* @param settings Die Settings die der Channel erhalten soll.
*/
void setChannelSettings(const char channel[],const unsigned int settings)
{
int i;
for(i=0;i<MAX_CHANNELS;i++)
{
if(strstr(chansettings[i].channel,channel))
{
chansettings[i].settings = settings;
break;
}
}
}
/**
* @fn void rmChannel(const char channel[])
* @brief Die Funktion entfernt einen Channel aus der Verwaltung der Channel Settings
* @param channel Der Channel der gelöscht werden soll.
*/
void rmChannel(const char channel[])
{
int i;
for(i=0;i<MAX_CHANNELS;i++)
{
if(strstr(chansettings[i].channel,channel))
{
chansettings[i].channel[0] = 'X';
break;
}
}
}
/**
* @fn void addChannelSettings(const char channel[],const unsigned int settings)
* @brief Die Funktion fügt einen Channel in die Verwaltung der Channel Settings hinzu.
* @param channel Der Channel der hinzugefügt werden soll.
* param settings Die Settings die der Channel bekommen soll.
*/
void addChannelSettings(const char channel[],const unsigned int settings)
{
strcpy(chansettings[(currentChannelCount-1)].channel,channel);
chansettings[(currentChannelCount-1)].settings = settings;
printf(" : - %s config set = %d\n",chansettings[(currentChannelCount-1)].channel,chansettings[(currentChannelCount-1)].settings);
}
/**
* @fn unsigned int getChannelSettings(const char channel[])
* @brief Gibt aus den Channelsettings die Settings für den gesuchten Channel zurück.
* @param channel Der zusuchen Channel.
* @return unsigned int gibt die Channelsettings zurück.
*/
unsigned int getChannelSettings(const char channel[])
{
int i;
for(i=0;i<MAX_CHANNELS;i++)
{
//printf("%c-\n",chansettings[i].channel[0] );
if(chansettings[i].channel[0] != '#')
{
addChannelSettings(channel,DEFAULT_CHANNEL_SETTINGS);
return DEFAULT_CHANNEL_SETTINGS;
}
// printf("%s=%s",channel,chansettings[i].channel);
if(strcmp(channel,chansettings[i].channel) == 0)
{
return chansettings[i].settings;
}
}
}
/**
* @fn void ircCommands(irc_session_t * session,const char * origin,const char ** params,unsigned int settings)
* @brief Die Funktion arbeitet die allgemeinen Channelfunktionen ab.
*/
void ircCommands(irc_session_t * session,const char * origin,const char ** params,unsigned int settings)
{
if (settings & QUIT && !strcmp (params[1], "!quit") )
irc_cmd_quit (session, "Bot wird beendet...");
if(strstr(params[1],botnick))
{
irc_cmd_msg(session, params[0][0] =='#' ? params[0] : origin ,"me?");
}
if (settings & NICK_CHANGE && strstr (params[1], "!nick") == params[1] )
{
sprintf(botnick,"%s",params[1] + 6);
irc_cmd_nick (session, params[1] + 6);
}
if(settings & JOIN_PART)
{
if(currentChannelCount < MAX_CHANNELS)
if (strstr (params[1], "!join") == params[1] )
{
irc_cmd_join (session, params[1] + 6,0);
currentChannelCount++;
}
if (strstr (params[1], "!part") == params[1] )
{
if(strstr(params[0],ctx.channel) == 0)
{
irc_cmd_part (session, params[0]);
rmChannel(params[0]);
currentChannelCount--;
}
else
{
irc_cmd_msg(session,params[0],"Hier geh ich net raus");
}
}
}
if(settings & GET_TIME && strstr(params[1],"!time"))
{
char tmp[60];
time ( &rawtime );
ptm = gmtime ( &rawtime );
sprintf(tmp,"Es ist %2d:%02d\n", (ptm->tm_hour+GMT)%24, ptm->tm_min);
irc_cmd_msg(session, params[0][0] =='#' ? params[0] : origin ,tmp);
}
if(settings & TOPIC_CHANGE)
{
if ( !strcmp (params[1], "!topic") )
irc_cmd_topic (session, params[0], 0);
else if ( strstr (params[1], "!topic ") == params[1] )
irc_cmd_topic (session, params[0], params[1] + 7);
}
if(strstr(params[1],"!status"))
{
char tmp[80];
sprintf(tmp,"Channelsettings = %d",getChannelSettings(params[0]));
irc_cmd_msg(session,params[0],tmp);
}
if(strstr(params[1],"!set"))
{
int settings;
char line[200];
char parts[32][32];
int i = 0;
strcpy(line,params[1]);
char *ptr =strtok(line," ");
while(ptr !=NULL)
{
sprintf(parts[i],"%s",ptr);
ptr = strtok(NULL, " ");
i++;
}
settings = atoi(parts[2]);
if(strstr(parts[2],"privmsg"))
{
privmsg_settings = settings;
}
else
{
setChannelSettings(parts[1],settings);
}
}
if(strstr(params[1],"!debug"))
{
int i;
for(i=0;i<MAX_CHANNELS;i++)
printf("%d=%s=%d\n",i,chansettings[i].channel,chansettings[i].settings);
}
}
/**
* @fn void sql_createtables()
* @brief Die Funktion erzeugt die Tabele in der SQLite DB.
*/
void sql_createtables()
{
sqlite3_exec(sqlitedb, "CREATE TABLE urls (id integer primary key, nick text, channel text, url text);", NULL, NULL, NULL);
}
/**
* @fn void sql_addurl(const char name[],const char channel[],const char url[])
* @brief Die Funktion fürgt eine URL in die Datenbank hinzu.
* @param name Wer hat die URL gepostet.
* @param channel Wo hat er die URL gepostet.
* @param url Welche URL hat er gepostet.
*/
void sql_addurl(const char name[],const char channel[],const char url[])
{
char tmp[1200];
sprintf(tmp,"INSERT INTO urls (nick,channel, url) VALUES ('%s', '%s', '%s');",name,channel,url);
sqlite3_exec(sqlitedb, tmp, NULL, NULL, NULL);
}
/**
* @fn void sql_geturls()
* @brief Die Funktion gibt in der UNIX Console den bestand der Datenbank aus.
*/
void sql_geturls()
{
sqlite3_stmt *vm;
sqlite3_prepare(sqlitedb, "SELECT * FROM urls", -1, &vm, NULL);
printf("ID:\tnick\tchannel\turl\n");
while (sqlite3_step(vm) != SQLITE_DONE)
{
printf("%i\t%s\t%s\t%s\n",
sqlite3_column_int(vm, 0),
sqlite3_column_text(vm, 1),
sqlite3_column_text(vm, 2),
sqlite3_column_text(vm, 3)
);
}
sqlite3_finalize(vm);
}
/**
* @fn void sql_geturl(irc_session_t *session,const char name[],int counter)
* @brief Die Funktion gibt eine gewisse anzahl der Letzten Eingetragenen URLs aus.
* @param session Die IRC Session.
* @param name Der Benutzen der die URLs wissen will.
* @param counter Die Anzahl wieviele URLs ausgegeben werden.
*/
void sql_geturl(irc_session_t *session,const char name[],int counter)
{
sqlite3_stmt *vm;
sqlite3_prepare(sqlitedb, "SELECT * FROM urls ORDER BY id DESC", -1, &vm, NULL);
int i = 0;
//printf("ID:\tnick\tchannel\turl\n");
while (sqlite3_step(vm) != SQLITE_DONE)
{
char tmp[1200];
sprintf(tmp,"%s (%s - %s)",sqlite3_column_text(vm, 3),sqlite3_column_text(vm, 1),sqlite3_column_text(vm, 2));
irc_cmd_msg(session,name,tmp);
i++;
if(i==counter)
break;
}
sqlite3_finalize(vm);
}
/**
* @fn void event_connect (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
* @brief Standart LIBIRC Event Funktion für Connecten.
*/
void event_connect (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
{
sprintf(botnick,"%s",ctx.nick);
irc_ctx_t * ctx = (irc_ctx_t *) irc_get_ctx (session);
irc_cmd_join (session, ctx->channel, 0);
currentChannelCount++;
}
/**
* @fn void event_join (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
* @brief Standart LIBIRC Event Funktion für Channel Joinen.
*/
void event_join (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
{
irc_cmd_user_mode (session, "+i");
//irc_cmd_msg (session, params[0], "Hi all");
}
/**
* @fn void event_privmsg (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
* @brief Standart LIBIRC Event Funktion für eine Privat Nachricht.
*/
void event_privmsg (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
{
//printf ("'%s' said me (%s): %s\n", origin ? origin : "someone", params[0], params[1] );
if(privmsg_settings & LOG_TXT)
log_file(origin,"privmsg",params[1]);
if(privmsg_settings & URL_SQL && (strstr(params[1],"http://") || strstr(params[1],"www.") ))
{
sql_addurl(origin,"privmsg",params[1]);
}
ircCommands(session,origin,params,privmsg_settings);
}
/**
* @fn void event_channel (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
* @brief Standart LIBIRC Event Funktion für in einem Channel.
*/
void event_channel (irc_session_t * session, const char * event, const char * origin, const char ** params, unsigned int count)
{
//printf("'%s' said in channel %s: %s\n",origin ? origin : "someone",params[0],params[1]);
int tmpsettings = getChannelSettings(params[0]);
if(tmpsettings & LOG_TXT)
log_file(origin,params[0],params[1]);
if(tmpsettings & URL_SQL && (strstr(params[1],"http://") || strstr(params[1],"www.") ))
{
sql_addurl(origin,params[0],params[1]);
}
if(tmpsettings & URL_SQL && strstr(params[1],"!geturls"))
sql_geturl(session,origin,5);
ircCommands(session,origin,params,tmpsettings);
}
/**
* @brief Einstieg in das Programm.
*/
int main(int argc, char** argv)
{
irc_callbacks_t callbacks;
irc_session_t *s;
//Time init
time ( &rawtime );
ptm = gmtime ( &rawtime );
printf(" : - Bot wird gestartet...\n");
//-- SQLite Init
printf(" : - SQLite wird initialisiert...\n");
sqlite3_open(SQLITEFILE, &sqlitedb);
sql_createtables();
switch(argc)
{
case 2:
{
int tmp = -1;
tmp = configfileLaden(argv[1]);
if(tmp==0)
{
return 1;
}
printf(" : - Bot Configfile geladen \n");
}break;
case 4:
ctx.channel = argv[3];
ctx.nick = argv[2];
server = argv[1];
printf(" : - Bot configuriert (Parameter) \n");
break;
default:
printf ("!: - Parameter fehlen\n");
printf ("!: - %s <server> <nick> '<#channel>' \n",argv[0]);
printf ("!: - %s <configfile> \n",argv[0]);
return 1;
}
printf(" : - Server: %s \n",server);
printf(" : - Nick: %s \n",ctx.nick);
printf(" : - Channel: %s \n",ctx.channel);
memset(&callbacks, 0, sizeof(callbacks));
//-- Events --
callbacks.event_connect = event_connect;
callbacks.event_join = event_join;
callbacks.event_channel = event_channel;
callbacks.event_privmsg = event_privmsg;
//--
// ctx.channel = "#Bot";
// ctx.nick = "FH-BoT";
if(server == NULL)
{
printf("?: - setzt Standartserver\n");
server = "localhost";
}
s = irc_create_session(&callbacks);
if(!s)
{
printf("X: - Konnte keine IRC Session aufbauen...\n");
return 1;
}
irc_set_ctx (s,&ctx);
irc_option_set (s, LIBIRC_OPTION_STRIPNICKS);
if( irc_connect (s, server,port, 0,ctx.nick,0,0))
{
printf("X: - Konnte keine Verbindung zum Server aufbauen...\n");
return 1;
}
if( irc_run (s) )
{
printf (" : - SQLite wird geschlossen. \n");
sqlite3_close(sqlitedb);
printf (" : - Bot wurde beendet. \n");
return 1;
}
sqlite3_close(sqlitedb);
return 1;
}