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fraud.cpp
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#include <sstream>
#include <syslog.h>
#include "fraud.h"
#include "calltable.h"
extern int opt_enable_fraud;
extern int opt_nocdr;
extern MySqlStore *sqlStore;
extern char cloud_host[256];
FraudAlerts *fraudAlerts = NULL;
volatile int _fraudAlerts_ready = 0;
volatile int _fraudAlerts_lock = 0;
int fraudDebug = 1;
CountryCodes *countryCodes = NULL;
CountryPrefixes *countryPrefixes = NULL;
GeoIP_country *geoIP_country = NULL;
CacheNumber_location *cacheNumber_location = NULL;
SqlDb *sqlDbFraud = NULL;
static void fraudAlerts_lock() {
while(__sync_lock_test_and_set(&_fraudAlerts_lock, 1));
}
static void fraudAlerts_unlock() {
__sync_lock_release(&_fraudAlerts_lock);
}
TimePeriod::TimePeriod(SqlDb_row *dbRow) {
if(dbRow) {
is_hourmin = atoi((*dbRow)["is_hourmin"].c_str());
from_hour = atoi((*dbRow)["from_hour"].c_str());
from_minute = atoi((*dbRow)["from_minute"].c_str());
to_hour = atoi((*dbRow)["to_hour"].c_str());
to_minute = atoi((*dbRow)["to_minute"].c_str());
is_weekday = atoi((*dbRow)["is_weekday"].c_str());
from_weekday = atoi((*dbRow)["from_weekday"].c_str());
to_weekday = atoi((*dbRow)["to_weekday"].c_str());
is_monthday = atoi((*dbRow)["is_monthday"].c_str());
from_monthday = atoi((*dbRow)["from_monthday"].c_str());
to_monthday = atoi((*dbRow)["to_monthday"].c_str());
is_month = atoi((*dbRow)["is_month"].c_str());
from_month = atoi((*dbRow)["from_month"].c_str());
to_month = atoi((*dbRow)["to_month"].c_str());
} else {
is_hourmin = false;
from_hour = 0;
from_minute = 0;
to_hour = 0;
to_minute = 0;
is_weekday = false;
from_weekday = 0;
to_weekday = 0;
is_monthday = false;
from_monthday = 0;
to_monthday = 0;
is_month = false;
from_month = 0;
to_month = 0;
}
}
CountryCodes::CountryCodes() {
}
void CountryCodes::load() {
SqlDb *sqlDb = createSqlObject();
sqlDb->query(string("select * ") +
"from " + (cloud_host[0] ? "cloudshare." : "") + "country_code\
where parent_id is null");
SqlDb_row row;
while(row = sqlDb->fetchRow()) {
continents[row["code"]] = row["name"];
}
sqlDb->query(string("select country.*, continent.code as continent ") +
"from " + (cloud_host[0] ? "cloudshare." : "") + "country_code country\
join " + (cloud_host[0] ? "cloudshare." : "") + "country_code continent on (continent.id = country.parent_id)\
where country.parent_id is not null");
while(row = sqlDb->fetchRow()) {
countries[row["code"]] = row["name"];
countryContinent[row["code"]] = row["continent"];
continentCountry[row["continent"]].push_back(row["code"]);
}
delete sqlDb;
}
bool CountryCodes::isCountry(const char *code) {
map<string, string>::iterator iter;
iter = countries.find(code);
return(iter != countries.end());
}
string CountryCodes::getNameCountry(const char *code) {
map<string, string>::iterator iter;
iter = countries.find(code);
return(iter != countries.end() ? iter->second : "");
}
string CountryCodes::getNameContinent(const char *code) {
map<string, string>::iterator iter;
iter = continents.find(code);
return(iter != continents.end() ? iter->second : "");
}
string CountryCodes::getName(const char *code) {
return(isCountry(code) ? getNameCountry(code) : getNameContinent(code));
}
string CountryCodes::getContinent(const char *code) {
map<string, string>::iterator iter;
iter = countryContinent.find(code);
return(iter != countryContinent.end() ? iter->second : "");
}
bool CountryCodes::isLocationIn(const char *location, vector<string> *in, bool continent) {
string location_s = continent ? string("c_") + location : location;
vector<string>::iterator iter = in->begin();
while(iter != in->end()) {
if(location_s == *iter) {
return(true);
}
++iter;
}
return(false);
}
CheckInternational::CheckInternational() {
internationalPrefixes = split("+, 00", ",", true);
internationalMinLength = 0;
}
void CheckInternational::setInternationalPrefixes(const char *prefixes) {
this->internationalPrefixes = split(prefixes, ",", true);
}
void CheckInternational::setSkipPrefixes(const char *prefixes) {
this->skipPrefixes = split(prefixes, ",", true);
}
void CheckInternational::setInternationalMinLength(int internationalMinLength) {
this->internationalMinLength = internationalMinLength;
}
void CheckInternational::load(SqlDb_row *dbRow) {
string _prefixes = (*dbRow)["international_prefixes"];
if(!_prefixes.empty()) {
internationalPrefixes = split(_prefixes.c_str(), split(",|;", "|"), true);
}
internationalMinLength = atoi((*dbRow)["international_number_min_length"].c_str());
countryCodeForLocalNumbers = (*dbRow)["country_code_for_local_numbers"];
_prefixes = (*dbRow)["skip_prefixes"];
if(!_prefixes.empty()) {
skipPrefixes = split(_prefixes.c_str(), split(",|;", "|"), true);
}
}
CountryPrefixes::CountryPrefixes() {
}
void CountryPrefixes::load() {
SqlDb *sqlDb = createSqlObject();
sqlDb->query(string("select * ") +
"from " + (cloud_host[0] ? "cloudshare." : "") + "country_code_prefix\
order by prefix");
SqlDb_row row;
while(row = sqlDb->fetchRow()) {
data.push_back(CountryPrefix_rec(
row["prefix"].c_str(),
row["country_code"].c_str(),
row["descr"].c_str()));
}
std::sort(data.begin(), data.end());
delete sqlDb;
}
GeoIP_country::GeoIP_country() {
}
void GeoIP_country::load() {
SqlDb *sqlDb = createSqlObject();
sqlDb->query(string("select * ") +
"from " + (cloud_host[0] ? "cloudshare." : "") + "geoip_country\
order by ip_from");
SqlDb_row row;
while(row = sqlDb->fetchRow()) {
data.push_back(GeoIP_country_rec(
atol(row["ip_from"].c_str()),
atol(row["ip_to"].c_str()),
row["country"].c_str()));
}
std::sort(data.begin(), data.end());
delete sqlDb;
}
CacheNumber_location::CacheNumber_location() {
if(!countryCodes) {
countryCodes = new FILE_LINE CountryCodes();
countryCodes->load();
}
if(!geoIP_country) {
geoIP_country = new FILE_LINE GeoIP_country();
geoIP_country->load();
}
sqlDb = createSqlObject();
last_cleanup_at = 0;
}
CacheNumber_location::~CacheNumber_location() {
delete sqlDb;
}
bool CacheNumber_location::checkNumber(const char *number, u_int32_t number_ip,
u_int32_t ip, u_int64_t at,
bool *diffCountry, bool *diffContinent,
u_int32_t *oldIp, string *oldCountry, string *oldContinent,
const char *ip_country, const char *ip_continent) {
if(!last_cleanup_at) {
last_cleanup_at = at;
}
if(at > last_cleanup_at + 600 * 1000000ull) {
this->cleanup(at);
}
if(diffCountry) {
*diffCountry = false;
}
if(diffContinent) {
*diffContinent = false;
}
if(oldIp) {
*oldIp = 0;
}
if(oldCountry) {
*oldCountry = "";
}
if(oldContinent) {
*oldContinent = "";
}
if(!strcasecmp(number, "anonymous") ||
!strcasecmp(number, "restricted") ||
!strcasecmp(number, "unknown")) {
return(true);
}
sNumber numberIp(number, number_ip);
map<sNumber, sIpRec>::iterator iterCache;
for(int pass = 0; pass < 2; pass++) {
iterCache = cache.find(numberIp);
if(iterCache != cache.end()) {
break;
}
if(pass == 0) {
if(!this->loadNumber(number, number_ip, at)) {
break;
}
}
}
string country_code = ip_country ? ip_country : geoIP_country->getCountry(ip);
string continent_code = ip_continent ? ip_continent : countryCodes->getContinent(country_code.c_str());
if(iterCache == cache.end()) {
sIpRec ipRec;
ipRec.ip = ip;
ipRec.country_code = country_code;
ipRec.continent_code = continent_code;
ipRec.at = at;
ipRec.fresh_at = at;
cache[numberIp] = ipRec;
this->saveNumber(number, number_ip, &ipRec);
return(true);
}
iterCache = cache.find(numberIp);
if(iterCache->second.old_at &&
iterCache->second.old_at <= at &&
iterCache->second.at >= at &&
iterCache->second.country_code == country_code) {
if(iterCache->second.country_code != iterCache->second.old_country_code) {
if(diffCountry) {
*diffCountry = true;
}
if(oldIp) {
*oldIp = iterCache->second.old_ip;
}
if(oldCountry) {
*oldCountry = iterCache->second.old_country_code;
}
}
if(iterCache->second.continent_code != iterCache->second.old_continent_code) {
if(diffContinent) {
*diffContinent = true;
}
if(oldIp) {
*oldIp = iterCache->second.old_ip;
}
if(oldContinent) {
*oldContinent = iterCache->second.old_continent_code;
}
}
iterCache->second.fresh_at = at;
return(false);
}
if(iterCache->second.country_code != country_code) {
if(country_code != iterCache->second.country_code) {
if(diffCountry) {
*diffCountry = true;
}
if(oldIp) {
*oldIp = iterCache->second.ip;
}
if(oldCountry) {
*oldCountry = iterCache->second.country_code;
}
}
if(continent_code != iterCache->second.continent_code) {
if(diffContinent) {
*diffContinent = true;
}
if(oldIp) {
*oldIp = iterCache->second.ip;
}
if(oldContinent) {
*oldContinent = iterCache->second.continent_code;
}
}
iterCache->second.old_ip = iterCache->second.ip;
iterCache->second.old_country_code = iterCache->second.country_code;
iterCache->second.old_continent_code = iterCache->second.continent_code;
iterCache->second.old_at = iterCache->second.at;
iterCache->second.ip = ip;
iterCache->second.country_code = country_code;
iterCache->second.continent_code = continent_code;
iterCache->second.at = at;
iterCache->second.fresh_at = at;
this->saveNumber(number, number_ip, &cache[numberIp], true);
return(false);
} else if(at > iterCache->second.at &&
at - iterCache->second.at > 300 * 1000000ull) {
this->updateAt(number, number_ip, at);
}
iterCache->second.fresh_at = at;
return(true);
}
bool CacheNumber_location::loadNumber(const char *number, u_int32_t number_ip, u_int64_t at) {
char number_ip_string[20];
sprintf(number_ip_string, "%u", number_ip);
sqlDb->query(string("select * from cache_number_location where number=") +
sqlEscapeStringBorder(number) +
" and number_ip=" +
number_ip_string);
SqlDb_row row = sqlDb->fetchRow();
if(row) {
sIpRec ipRec;
ipRec.ip = atoll(row["ip"].c_str());
ipRec.country_code = row["country_code"];
ipRec.continent_code = row["continent_code"];
ipRec.at = atoll(row["at"].c_str());
ipRec.old_ip = atoll(row["old_ip"].c_str());
ipRec.old_country_code = row["old_country_code"];
ipRec.old_continent_code = row["old_continent_code"];
ipRec.old_at = atoll(row["old_at"].c_str());
ipRec.fresh_at = at;
cache[sNumber(number, number_ip)] = ipRec;
return(true);
}
return(false);
}
void CacheNumber_location::saveNumber(const char *number, u_int32_t number_ip, sIpRec *ipRec, bool update) {
if(update) {
ostringstream outStr;
outStr << "update cache_number_location set "
<< "ip = "
<< ipRec->ip << ","
<< "country_code = "
<< sqlEscapeStringBorder(ipRec->country_code) << ","
<< "continent_code = "
<< sqlEscapeStringBorder(ipRec->continent_code) << ","
<< "at = "
<< ipRec->at << ","
<< "old_ip = "
<< ipRec->old_ip << ","
<< "old_country_code = "
<< sqlEscapeStringBorder(ipRec->old_country_code) << ","
<< "old_continent_code = "
<< sqlEscapeStringBorder(ipRec->old_continent_code) << ","
<< "old_at = "
<< ipRec->old_at
<< " where number = "
<< sqlEscapeStringBorder(number)
<< " and number_ip = "
<< number_ip;
sqlStore->query_lock(outStr.str().c_str(), STORE_PROC_ID_CACHE_NUMBERS_LOCATIONS);
} else {
SqlDb_row row;
row.add(number, "number");
row.add(number_ip, "number_ip");
row.add(ipRec->ip, "ip");
row.add(ipRec->country_code, "country_code");
row.add(ipRec->continent_code, "continent_code");
row.add(ipRec->at, "at");
row.add(ipRec->old_ip, "old_ip");
row.add(ipRec->old_country_code, "old_country_code");
row.add(ipRec->old_continent_code, "old_continent_code");
row.add(ipRec->old_at, "old_at");
sqlStore->query_lock(sqlDb->insertQuery("cache_number_location", row).c_str(), STORE_PROC_ID_CACHE_NUMBERS_LOCATIONS);
}
}
void CacheNumber_location::updateAt(const char *number, u_int32_t number_ip, u_int64_t at) {
ostringstream outStr;
outStr << "update cache_number_location\
set at = "
<< at
<< " where number = "
<< sqlEscapeStringBorder(number)
<< " and number_ip = "
<< number_ip;
sqlStore->query_lock(outStr.str().c_str(), STORE_PROC_ID_CACHE_NUMBERS_LOCATIONS);
}
void CacheNumber_location::cleanup(u_int64_t at) {
map<sNumber, sIpRec>::iterator iterCache;
for(iterCache = cache.begin(); iterCache != cache.end();) {
if(at > iterCache->second.fresh_at + 600 * 1000000ull) {
cache.erase(iterCache++);
} else {
++iterCache;
}
}
last_cleanup_at = at;
}
FraudAlertInfo::FraudAlertInfo(FraudAlert *alert) {
this->alert = alert;
}
string FraudAlertInfo::getAlertTypeString() {
return(alert->getTypeString());
}
string FraudAlertInfo::getAlertDescr() {
return(alert->getDescr());
}
unsigned int FraudAlertInfo::getAlertDbId() {
return(alert->getDbId());
}
void FraudAlertInfo::setAlertJsonBase(JsonExport *json) {
json->add("alert_type", this->getAlertTypeString().c_str());
json->add("alert_descr", this->getAlertDescr().c_str());
}
FraudAlert::FraudAlert(eFraudAlertType type, unsigned int dbId) {
this->type = type;
this->dbId = dbId;
concurentCallsLimitLocal = 0;
concurentCallsLimitInternational = 0;
concurentCallsLimitBoth = 0;
typeChangeLocation = _typeLocation_NA;
intervalLength = 0;
intervalLimit = 0;
onlyConnected = false;
suppressRepeatingAlerts = false;
alertOncePerHours = 0;
hour_from = -1;
hour_to = -1;
for(int i = 0; i < 7; i++) {
day_of_week[i] = false;
}
day_of_week_set = false;
}
FraudAlert::~FraudAlert() {
}
bool FraudAlert::loadAlert() {
SqlDb *sqlDb = createSqlObject();
char dbIdStr[10];
sprintf(dbIdStr, "%u", dbId);
sqlDb->query(string(
"select alerts.*,\
(select group_concat(number) \
from alerts_groups ag\
join cb_number_groups g on (g.id=ag.number_group_id)\
where ag.type = 'number_whitelist' and ag.alerts_id = alerts.id) as fraud_whitelist_number_g,\
(select group_concat(number)\
from alerts_groups ag\
join cb_number_groups g on (g.id=ag.number_group_id)\
where ag.type = 'number_blacklist' and ag.alerts_id = alerts.id) as fraud_blacklist_number_g,\
(select group_concat(number) \
from alerts_groups ag\
join cb_number_groups g on (g.id=ag.number_group_id)\
where ag.type = 'number_whitelist_2' and ag.alerts_id = alerts.id) as fraud_whitelist_number_2_g,\
(select group_concat(number)\
from alerts_groups ag\
join cb_number_groups g on (g.id=ag.number_group_id)\
where ag.type = 'number_blacklist_2' and ag.alerts_id = alerts.id) as fraud_blacklist_number_2_g,\
(select group_concat(ip)\
from alerts_groups ag\
join cb_ip_groups g on (g.id=ag.ip_group_id)\
where ag.type = 'ip_whitelist' and ag.alerts_id = alerts.id) as fraud_whitelist_ip_g,\
(select group_concat(ip)\
from alerts_groups ag\
join cb_ip_groups g on (g.id=ag.ip_group_id)\
where ag.type = 'ip_blacklist' and ag.alerts_id = alerts.id) as fraud_blacklist_ip_g,\
(select group_concat(ip)\
from alerts_groups ag\
join cb_ip_groups g on (g.id=ag.ip_group_id)\
where ag.type = 'ip_whitelist_2' and ag.alerts_id = alerts.id) as fraud_whitelist_ip_2_g,\
(select group_concat(ip)\
from alerts_groups ag\
join cb_ip_groups g on (g.id=ag.ip_group_id)\
where ag.type = 'ip_blacklist_2' and ag.alerts_id = alerts.id) as fraud_blacklist_ip_2_g\
from alerts\
where id = ") + dbIdStr);
dbRow = sqlDb->fetchRow();
if(!dbRow) {
delete sqlDb;
return(false);
}
descr = dbRow["descr"];
if(defFilterIp()) {
ipFilter.addWhite(dbRow["fraud_whitelist_ip"].c_str());
ipFilter.addWhite(dbRow["fraud_whitelist_ip_g"].c_str());
ipFilter.addBlack(dbRow["fraud_blacklist_ip"].c_str());
ipFilter.addBlack(dbRow["fraud_blacklist_ip_g"].c_str());
}
if(defFilterIp2()) {
ipFilter2.addWhite(dbRow["fraud_whitelist_ip_2"].c_str());
ipFilter2.addWhite(dbRow["fraud_whitelist_ip_2_g"].c_str());
ipFilter2.addBlack(dbRow["fraud_blacklist_ip_2"].c_str());
ipFilter2.addBlack(dbRow["fraud_blacklist_ip_2_g"].c_str());
}
if(defFilterNumber()) {
phoneNumberFilter.addWhite(dbRow["fraud_whitelist_number"].c_str());
phoneNumberFilter.addWhite(dbRow["fraud_whitelist_number_g"].c_str());
phoneNumberFilter.addBlack(dbRow["fraud_blacklist_number"].c_str());
phoneNumberFilter.addBlack(dbRow["fraud_blacklist_number_g"].c_str());
}
if(defFilterNumber2()) {
phoneNumberFilter2.addWhite(dbRow["fraud_whitelist_number_2"].c_str());
phoneNumberFilter2.addWhite(dbRow["fraud_whitelist_number_2_g"].c_str());
phoneNumberFilter2.addBlack(dbRow["fraud_blacklist_number_2"].c_str());
phoneNumberFilter2.addBlack(dbRow["fraud_blacklist_number_2_g"].c_str());
}
if(defFraudDef()) {
loadFraudDef();
}
if(defConcuretCallsLimit()) {
concurentCallsLimitLocal = atoi(dbRow["fraud_concurent_calls_limit_local"].c_str());
concurentCallsLimitInternational = atoi(dbRow["fraud_concurent_calls_limit_international"].c_str());
concurentCallsLimitBoth = atoi(dbRow["fraud_concurent_calls_limit"].c_str());
}
if(defTypeChangeLocation()) {
typeChangeLocation = dbRow["fraud_type_change_location"] == "country" ? _typeLocation_country :
dbRow["fraud_type_change_location"] == "continent" ? _typeLocation_continent :
_typeLocation_NA;
}
if(defChangeLocationOk()) {
changeLocationOk = split(dbRow["fraud_change_location_ok"].c_str(), ",", true);
}
if(defDestLocation()) {
destLocation = split(dbRow["fraud_dest_location"].c_str(), ",", true);
}
if(defInterval()) {
intervalLength = atol(dbRow["fraud_interval_length"].c_str());
intervalLimit = atol(dbRow["fraud_interval_limit"].c_str());
}
if(defOnlyConnected()) {
onlyConnected = atoi(dbRow["only_connected"].c_str());
}
if(defSuppressRepeatingAlerts()) {
suppressRepeatingAlerts = atoi(dbRow["fraud_suppress_repeating_alerts"].c_str());
if(suppressRepeatingAlerts) {
alertOncePerHours = atoi(dbRow["fraud_alert_once_per_hours"].c_str());
}
}
checkInternational.load(&dbRow);
hour_from = -1;
hour_to = -1;
for(int i = 0; i < 7; i++) {
day_of_week[i] = false;
}
day_of_week_set = false;
if(!dbRow.isNull("at_hour_of_day_from")) {
int _hour_from = atoi(dbRow["at_hour_of_day_from"].c_str());
if(_hour_from >= 0 && _hour_from <= 23) {
hour_from = _hour_from;
}
}
if(!dbRow.isNull("at_hour_of_day_to")) {
int _hour_to = atoi(dbRow["at_hour_of_day_to"].c_str());
if(_hour_to >= 0 && _hour_to <= 23) {
hour_to = _hour_to;
}
}
if(hour_from >= 0 || hour_to >= 0) {
if(hour_from < 0) hour_from = 0;
if(hour_to < 0) hour_to = 23;
}
if(!dbRow.isNull("at_day_of_week")) {
vector<string> dw = split(dbRow["at_day_of_week"].c_str(), ",", true);
for(size_t i = 0; i < dw.size(); i++) {
int day = atoi(dw[i].c_str());
if(day >= 1 and day <= 7) {
day_of_week[day - 1] = true;
day_of_week_set = true;
}
}
}
delete sqlDb;
return(true);
}
void FraudAlert::loadFraudDef() {
SqlDb *sqlDb = createSqlObject();
char dbIdStr[10];
sprintf(dbIdStr, "%u", dbId);
sqlDb->query(string(
"select *\
from alerts_fraud\
where alerts_id = ") + dbIdStr);
SqlDb_row row;
while(row = sqlDb->fetchRow()) {
if(fraudDebug) {
syslog(LOG_NOTICE, "add fraud def %s", row["descr"].c_str());
}
addFraudDef(&row);
}
delete sqlDb;
}
string FraudAlert::getTypeString() {
switch(type) {
case _rcc: return("rcc");
case _chc: return("chc");
case _chcr: return("chcr");
case _d: return("d");
case _spc: return("spc");
case _rc: return("rc");
case _seq: return("seq");
}
return("");
}
bool FraudAlert::okFilter(sFraudCallInfo *callInfo) {
if(this->defFilterIp() && !this->ipFilter.checkIP(callInfo->caller_ip)) {
return(false);
}
if(this->defFilterIp2() && !this->ipFilter2.checkIP(callInfo->called_ip)) {
return(false);
}
if(this->defFilterNumber() && !this->phoneNumberFilter.checkNumber(callInfo->caller_number.c_str())) {
return(false);
}
if(this->defFilterNumber2() && !this->phoneNumberFilter2.checkNumber(callInfo->called_number.c_str())) {
return(false);
}
return(true);
}
bool FraudAlert::okFilter(sFraudEventInfo *eventInfo) {
if(this->defFilterIp() && !this->ipFilter.checkIP(eventInfo->src_ip)) {
return(false);
}
return(true);
}
bool FraudAlert::okDayHour(time_t at) {
if((hour_from >= 0 && hour_to >= 0) ||
day_of_week_set) {
tm attm = localtime_r(&at);
if(hour_from >= 0 && hour_to >= 0) {
if(hour_from <= hour_to) {
if(attm.tm_hour < hour_from || attm.tm_hour > hour_to) {
return(false);
}
} else {
if(attm.tm_hour < hour_from && attm.tm_hour > hour_to) {
return(false);
}
}
}
if(day_of_week_set) {
if(!day_of_week[attm.tm_wday]) {
return(false);
}
}
}
return(true);
}
void FraudAlert::evAlert(FraudAlertInfo *alertInfo) {
if(sverb.fraud) {
cout << "FRAUD ALERT INFO: "
<< alertInfo->getAlertTypeString() << " // "
<< alertInfo->getAlertDescr() << " // "
<< alertInfo->getJson()
<< endl
<< flush;
}
if(!sqlDbFraud) {
sqlDbFraud = createSqlObject();
}
SqlDb_row row;
row.add(alertInfo->getAlertDbId(), "alert_id");
time_t now;
time(&now);
row.add(sqlDateTimeString(now), "at");
row.add(alertInfo->getJson(), "alert_info");
sqlStore->query_lock(sqlDbFraud->insertQuery("fraud_alert_info", row).c_str(), STORE_PROC_ID_FRAUD_ALERT_INFO);
delete alertInfo;
}
FraudAlert_rcc_callInfo::FraudAlert_rcc_callInfo() {
this->last_alert_info_local = 0;
this->last_alert_info_international = 0;
this->last_alert_info_li = 0;
}
FraudAlert_rcc_timePeriods::FraudAlert_rcc_timePeriods(const char *descr,
int concurentCallsLimitLocal,
int concurentCallsLimitInternational,
int concurentCallsLimitBoth,
unsigned int dbId) {
this->descr = descr;
this->concurentCallsLimitLocal_tp = concurentCallsLimitLocal;
this->concurentCallsLimitInternational_tp = concurentCallsLimitInternational;
this->concurentCallsLimitBoth_tp = concurentCallsLimitBoth;
this->dbId = dbId;
this->loadTimePeriods();
}
FraudAlert_rcc_timePeriods::~FraudAlert_rcc_timePeriods() {
map<u_int32_t, FraudAlert_rcc_callInfo*>::iterator callsIter;
for(callsIter = calls.begin(); callsIter != calls.end(); ++callsIter) {
delete callsIter->second;
}
}
void FraudAlert_rcc_timePeriods::loadTimePeriods() {
SqlDb *sqlDb = createSqlObject();
char dbIdStr[10];
sprintf(dbIdStr, "%u", dbId);
sqlDb->query(string(
"select *\
from alerts_fraud_timeperiod\
join cb_timeperiod on (cb_timeperiod.id = alerts_fraud_timeperiod.timeperiod_id)\
where alerts_fraud_id = ") + dbIdStr);
SqlDb_row row;
while(row = sqlDb->fetchRow()) {
timePeriods.push_back(TimePeriod(&row));
}
delete sqlDb;
}
void FraudAlert_rcc_base::evCall_rcc(sFraudCallInfo *callInfo, FraudAlert_rcc *alert, bool timeperiod) {
FraudAlert_rcc_callInfo *call;
map<u_int32_t, FraudAlert_rcc_callInfo*>::iterator callsIter;
switch(callInfo->typeCallInfo) {
case sFraudCallInfo::typeCallInfo_connectCall:
if(this->checkTime(callInfo->at_connect)) {
callsIter = calls.find(callInfo->caller_ip);
if(callsIter != calls.end()) {
call = callsIter->second;
} else {
call = new FraudAlert_rcc_callInfo;
calls[callInfo->caller_ip] = call;
}
if(callInfo->local_called_number) {
call->addLocal(callInfo->callid.c_str(), callInfo->at_connect);
if(sverb.fraud) {
syslog(LOG_NOTICE, "fraud local rcc ++ %s / %s / %lu",
inet_ntostring(callInfo->caller_ip).c_str(),
callInfo->callid.c_str(),
call->calls_local.size());
}
} else {
call->addInternational(callInfo->callid.c_str(), callInfo->at_connect);
if(sverb.fraud) {
syslog(LOG_NOTICE, "fraud international rcc ++ %s / %s / %lu",
inet_ntostring(callInfo->caller_ip).c_str(),
callInfo->callid.c_str(),
call->calls_international.size());
}
}
unsigned int concurentCallsLimitLocal = timeperiod ? this->concurentCallsLimitLocal_tp : alert->concurentCallsLimitLocal;
unsigned int concurentCallsLimitInternational = timeperiod ? this->concurentCallsLimitInternational_tp : alert->concurentCallsLimitInternational;
unsigned int concurentCallsLimitBoth = timeperiod ? this->concurentCallsLimitBoth_tp : alert->concurentCallsLimitBoth;
if(concurentCallsLimitLocal &&
call->calls_local.size() >= concurentCallsLimitLocal &&
callInfo->at_connect > call->last_alert_info_local + 1000000ull &&
this->checkOkAlert(callInfo->caller_ip, call->calls_local.size(), callInfo->at_connect,
FraudAlert::_li_local, alert)) {
FraudAlertInfo_rcc *alertInfo = new FraudAlertInfo_rcc(alert);
alertInfo->set(FraudAlert::_li_local, this->getDescr().c_str(),
callInfo->caller_ip, callInfo->country_code_caller_ip.c_str(),
call->calls_local.size());
alert->evAlert(alertInfo);
call->last_alert_info_local = callInfo->at_connect;
}
if(concurentCallsLimitInternational &&
call->calls_international.size() >= concurentCallsLimitInternational &&
callInfo->at_connect > call->last_alert_info_international + 1000000ull &&
this->checkOkAlert(callInfo->caller_ip, call->calls_international.size(), callInfo->at_connect,
FraudAlert::_li_international, alert)) {
FraudAlertInfo_rcc *alertInfo = new FraudAlertInfo_rcc(alert);
alertInfo->set(FraudAlert::_li_international, this->getDescr().c_str(),
callInfo->caller_ip, callInfo->country_code_caller_ip.c_str(),
call->calls_international.size());
alert->evAlert(alertInfo);
call->last_alert_info_international = callInfo->at_connect;
}
if(concurentCallsLimitBoth &&
call->calls_local.size() + call->calls_international.size() >= concurentCallsLimitBoth &&
callInfo->at_connect > call->last_alert_info_li + 1000000ull &&
this->checkOkAlert(callInfo->caller_ip, call->calls_local.size() + call->calls_international.size(), callInfo->at_connect,
FraudAlert::_li_booth, alert)) {
FraudAlertInfo_rcc *alertInfo = new FraudAlertInfo_rcc(alert);
alertInfo->set(FraudAlert::_li_booth, this->getDescr().c_str(),
callInfo->caller_ip, callInfo->country_code_caller_ip.c_str(),
call->calls_local.size() + call->calls_international.size());
alert->evAlert(alertInfo);
call->last_alert_info_li = callInfo->at_connect;
}
}
break;
case sFraudCallInfo::typeCallInfo_seenByeCall:
case sFraudCallInfo::typeCallInfo_endCall:
callsIter = calls.find(callInfo->caller_ip);
if(callsIter != calls.end()) {
call = callsIter->second;
if(callInfo->local_called_number) {
call->calls_local.erase(callInfo->callid);
if(sverb.fraud) {
syslog(LOG_NOTICE, "fraud local rcc -- %s / %s / %lu",
inet_ntostring(callInfo->caller_ip).c_str(),
callInfo->callid.c_str(),
call->calls_local.size());
}
} else {
call->calls_international.erase(callInfo->callid);
if(sverb.fraud) {
syslog(LOG_NOTICE, "fraud international rcc -- %s / %s / %lu",
inet_ntostring(callInfo->caller_ip).c_str(),
callInfo->callid.c_str(),
call->calls_international.size());
}
}
}
break;
default:
break;
}
}
bool FraudAlert_rcc_base::checkOkAlert(u_int32_t ip, size_t concurentCalls, u_int64_t at,
FraudAlert::eLocalInternational li,
FraudAlert_rcc *alert) {
if(!alert->alertOncePerHours) {
return(true);
}
map<u_int32_t, sAlertInfo> *alerts = li == FraudAlert::_li_local ?
&this->alerts_local :
li == FraudAlert::_li_international ?
&this->alerts_international :
&this->alerts_booth;
map<u_int32_t, sAlertInfo>::iterator iter = alerts->find(ip);
if(iter == alerts->end()) {
(*alerts)[ip] = sAlertInfo(concurentCalls, at);
return(true);
} else {
if(iter->second.at + alert->alertOncePerHours * 3600 * 1000000ull < at/* ||
iter->second.concurentCalls * 1.5 < concurentCalls*/) {
(*alerts)[ip] = sAlertInfo(concurentCalls, at);
} else {
return(false);
}
}
return(true);
}
FraudAlertInfo_rcc::FraudAlertInfo_rcc(FraudAlert *alert)
: FraudAlertInfo(alert) {
}
void FraudAlertInfo_rcc::set(FraudAlert::eLocalInternational localInternational,
const char *timeperiod_name,
u_int32_t ip, const char *ip_location_code,
unsigned int concurentCalls) {
this->localInternational = localInternational;
if(timeperiod_name) {
this->timeperiod_name = timeperiod_name;
}
this->ip = ip;
this->ip_location_code = ip_location_code;
this->concurentCalls = concurentCalls;
}
string FraudAlertInfo_rcc::getJson() {
JsonExport json;
this->setAlertJsonBase(&json);
json.add("local_international",
(localInternational == FraudAlert::_li_local ? "local" :
localInternational == FraudAlert::_li_international ? "international" : "local & international"));
if(!timeperiod_name.empty()) {
json.add("timeperiod_name", timeperiod_name);
}
json.add("ip", inet_ntostring(ip));
json.add("ip_location_code", ip_location_code);
json.add("ip_country", countryCodes->getNameCountry(ip_location_code.c_str()));
json.add("ip_continent", countryCodes->getNameContinent(ip_location_code.c_str()));
json.add("concurent_calls", concurentCalls);
return(json.getJson());
}
void FraudAlert_rcc::addFraudDef(SqlDb_row *row) {
timePeriods.push_back(FraudAlert_rcc_timePeriods(
(*row)["descr"].c_str(),
atoi((*row)["concurent_calls_limit_local"].c_str()),
atoi((*row)["concurent_calls_limit_international"].c_str()),
atoi((*row)["concurent_calls_limit"].c_str()),
atol((*row)["id"].c_str())));
}
FraudAlert_rcc::FraudAlert_rcc(unsigned int dbId)
: FraudAlert(_rcc, dbId) {
}
FraudAlert_rcc::~FraudAlert_rcc() {
map<u_int32_t, FraudAlert_rcc_callInfo*>::iterator callsIter;
for(callsIter = calls.begin(); callsIter != calls.end(); ++callsIter) {
delete callsIter->second;
}
}
void FraudAlert_rcc::evCall(sFraudCallInfo *callInfo) {
if(callInfo->call_type == REGISTER ||
!this->okFilter(callInfo) ||
!this->okDayHour(callInfo)) {
return;
}
this->evCall_rcc(callInfo, this, false);
for(size_t i = 0; i < timePeriods.size(); i++) {
timePeriods[i].evCall_rcc(callInfo, this, true);
}
}
FraudAlertInfo_chc::FraudAlertInfo_chc(FraudAlert *alert)
: FraudAlertInfo(alert) {
}
void FraudAlertInfo_chc::set(const char *number,
FraudAlert::eTypeLocation typeLocation,
u_int32_t ip,
const char *location_code,
u_int32_t ip_old,
const char *location_code_old) {
this->number = number;
this->typeLocation = typeLocation;
this->ip = ip;
this->location_code = location_code;
this->ip_old = ip_old;
this->location_code_old = location_code_old;
}
string FraudAlertInfo_chc::getJson() {
JsonExport json;
this->setAlertJsonBase(&json);
json.add("number", number);
json.add("type_location",
typeLocation == FraudAlert::_typeLocation_country ?
"country" :
"continent");
json.add("ip", inet_ntostring(ip));
json.add("location_code", location_code);
json.add("location_name",
typeLocation == FraudAlert::_typeLocation_country ?
countryCodes->getNameCountry(location_code.c_str()) :
countryCodes->getNameContinent(location_code.c_str()));
json.add("ip_old", inet_ntostring(ip_old));
json.add("location_code_old", location_code_old);
json.add("location_name_old",
typeLocation == FraudAlert::_typeLocation_country ?
countryCodes->getNameCountry(location_code_old.c_str()) :
countryCodes->getNameContinent(location_code_old.c_str()));
return(json.getJson());
}
FraudAlert_chc::FraudAlert_chc(unsigned int dbId)