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fraud.cpp
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fraud.cpp
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#include <sstream>
#include <syslog.h>
#include "fraud.h"
#include "calltable.h"
#include "sniff.h"
#include "pcap_queue_block.h"
extern int opt_id_sensor;
extern int opt_enable_fraud;
extern int opt_nocdr;
extern MySqlStore *sqlStore;
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 bool opt_enable_fraud_store_pcaps;
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;
}
}
CacheNumber_location::CacheNumber_location() {
if(!countryCodes) {
countryCodes = new FILE_LINE(7001) CountryCodes();
countryCodes->load();
}
if(!geoIP_country) {
geoIP_country = new FILE_LINE(7002) 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, const char *domain,
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, domain);
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, domain, 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, domain, &ipRec);
return(true);
}
if(iterCache->second.country_code != country_code &&
at > iterCache->second.at) {
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, domain, &cache[numberIp], true);
return(false);
}
iterCache->second.fresh_at = at;
if(iterCache->second.country_code == country_code &&
at <= iterCache->second.at &&
iterCache->second.old_at &&
at >= iterCache->second.old_at) {
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;
}
}
return(false);
}
return(true);
}
bool CacheNumber_location::loadNumber(const char *number, u_int32_t number_ip, const char *domain, u_int64_t at) {
SqlDb_row cond;
cond.add(string_size(number, 30), "number");
cond.add(number_ip, "number_ip");
if(domain && *domain) {
cond.add(string_size(domain, 100), "domain");
}
sqlDb->query("select * from " + getTable(domain) + " where " +
cond.implodeFieldContent(" and ", "`", "\"", false, true));
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, domain)] = ipRec;
return(true);
}
return(false);
}
void CacheNumber_location::saveNumber(const char *number, u_int32_t number_ip, const char *domain, sIpRec *ipRec, bool update) {
SqlDb_row row;
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");
if(update) {
SqlDb_row cond;
cond.add(string_size(number, 30), "number");
cond.add(number_ip, "number_ip");
if(domain && *domain) {
cond.add(string_size(domain, 100), "domain");
}
sqlStore->query_lock(sqlDb->updateQuery(getTable(domain), row, cond, false, true).c_str(),
STORE_PROC_ID_CACHE_NUMBERS_LOCATIONS);
} else {
row.add(string_size(number, 30), "number");
row.add(number_ip, "number_ip");
if(domain && *domain) {
row.add(string_size(domain, 100), "domain");
}
sqlStore->query_lock(sqlDb->insertQuery(getTable(domain), row, false, true, true).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;
}
string CacheNumber_location::getTable(const char *domain) {
return(domain && *domain ? "cache_number_domain_location" : "cache_number_location");
}
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;
ipFilterCondition12 = _cond12_and;
phoneNumberFilterCondition12 = _cond12_and;
useDomain = false;
concurentCallsLimitLocal = 0;
concurentCallsLimitInternational = 0;
concurentCallsLimitBoth = 0;
typeBy = _typeBy_NA;
typeChangeLocation = _typeLocation_NA;
intervalLength = 0;
intervalLimit = 0;
filterInternational = false;
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;
storePcaps = false;
verbLog = NULL;
}
FraudAlert::~FraudAlert() {
if(verbLog) {
fclose(verbLog);
}
}
bool FraudAlert::isReg() {
return(type == _reg_ua ||
type == _reg_short ||
type == _reg_expire);
}
bool FraudAlert::loadAlert() {
SqlDb *sqlDb = createSqlObject();
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,\
(select group_concat(ua)\
from alerts_groups ag\
join cb_ua_groups g on (g.id=ag.ua_group_id)\
where ag.type = 'ua_whitelist' and ag.alerts_id = alerts.id) as fraud_whitelist_ua_g\
from alerts\
where id = ") + intToString(dbId));
dbRow = sqlDb->fetchRow();
if(!dbRow) {
delete sqlDb;
return(false);
}
descr = dbRow["descr"];
if(defTypeBy()) {
typeBy = dbRow["fraud_rcc_by"] == "source_ip" ? _typeBy_source_ip :
dbRow["fraud_rcc_by"] == "destination_ip" ? _typeBy_destination_ip :
dbRow["fraud_rcc_by"] == "source_number" ? _typeBy_source_number :
dbRow["fraud_rcc_by"] == "rtp_stream_ip" ? _typeBy_rtp_stream_ip :
dbRow["fraud_rcc_by"] == "rtp_stream_ip_group" ? _typeBy_rtp_stream_ip_group :
dbRow["fraud_rcc_by"] == "summary" ? _typeBy_summary :
_typeBy_source_ip;
}
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(defFilterIpCondition12()) {
ipFilterCondition12 = dbRow["fraud_ip_condition_12"] == "and" ? _cond12_and :
dbRow["fraud_ip_condition_12"] == "or" ? _cond12_or :
dbRow["fraud_ip_condition_12"] == "both_direction" ? _cond12_both_directions :
typeBy == _typeBy_rtp_stream_ip || typeBy == _typeBy_rtp_stream_ip_group ?
_cond12_both_directions :
_cond12_and;
}
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(defFilterNumberCondition12()) {
phoneNumberFilterCondition12 = dbRow["fraud_number_condition_12"] == "and" ? _cond12_and :
dbRow["fraud_number_condition_12"] == "or" ? _cond12_or :
dbRow["fraud_number_condition_12"] == "both_direction" ? _cond12_both_directions :
typeBy == _typeBy_rtp_stream_ip || typeBy == _typeBy_rtp_stream_ip_group ?
_cond12_both_directions :
_cond12_and;
}
if(defFilterUA()) {
uaFilter.addWhite(dbRow["fraud_whitelist_ua"].c_str());
uaFilter.addWhite(dbRow["fraud_whitelist_ua_g"].c_str());
}
if(defUseDomain()) {
useDomain = atoi(dbRow["fraud_use_domain"].c_str());
}
if(defFilterDomain()) {
domainFilter.addComb(dbRow["fraud_whitelist_domain"].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(defDestPrefixes()) {
destPrefixes = split(dbRow["fraud_dest_prefixes"].c_str(), ",", true);
for(unsigned i = 0; i < destPrefixes.size(); i++) {
size_t posCountryCodeSeparator = destPrefixes[i].find('/');
if(posCountryCodeSeparator != string::npos) {
destPrefixes[i].resize(posCountryCodeSeparator);
}
}
}
if(defInterval()) {
intervalLength = atol(dbRow["fraud_interval_length"].c_str());
intervalLimit = atol(dbRow["fraud_interval_limit"].c_str());
}
if(defFilterInternational()) {
filterInternational = atoi(dbRow["fraud_filter_international"].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;
}
}
}
if(defStorePcaps()) {
storePcaps = atoi(dbRow["fraud_store_pcaps"].c_str());
storePcapsToPaths = dbRow["fraud_store_pcaps_to_path"];
}
loadAlertVirt();
delete sqlDb;
return(true);
}
void FraudAlert::loadFraudDef() {
SqlDb *sqlDb = createSqlObject();
sqlDb->query(string(
"select *\
from alerts_fraud\
where alerts_id = ") + intToString(dbId));
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");
case _reg_ua: return("reg_ua");
case _reg_short: return("reg_short");
case _reg_expire: return("reg_expire");
}
return("");
}
bool FraudAlert::openVerbLog() {
string verbLogFileName = string(getSpoolDir(tsf_main, 0)) + "/fraud_log_" + intToString(this->dbId);
verbLog = fopen(verbLogFileName.c_str(), "a");
if(verbLog) {
setbuf(verbLog, NULL);
fprintf(verbLog, "start %s %s\n", this->getDescr().c_str(), sqlDateTimeString(time(NULL)).c_str());
return(true);
}
return(false);
}
bool FraudAlert::okFilterIp(u_int32_t ip, u_int32_t ip2) {
if((!this->defFilterIp() || this->ipFilter.is_empty()) &&
(!this->defFilterIp2() || this->ipFilter2.is_empty())) {
return(true);
}
switch(ipFilterCondition12) {
case _cond12_and:
return((!this->defFilterIp() || this->ipFilter.checkIP(ip)) &&
(!this->defFilterIp2() || this->ipFilter2.checkIP(ip2)));
case _cond12_or:
return((!this->defFilterIp() || (!this->ipFilter.is_empty() && this->ipFilter.checkIP(ip))) ||
(!this->defFilterIp2() || (!this->ipFilter2.is_empty() && this->ipFilter2.checkIP(ip2))));
case _cond12_both_directions:
return(((!this->defFilterIp() || this->ipFilter.checkIP(ip)) &&
(!this->defFilterIp2() || this->ipFilter2.checkIP(ip2))) ||
((!this->defFilterIp() || this->ipFilter.checkIP(ip2)) &&
(!this->defFilterIp2() || this->ipFilter2.checkIP(ip))));
default:
return(true);
}
return(false);
}
bool FraudAlert::okFilterPhoneNumber(const char *numb, const char *numb2) {
if((!this->defFilterNumber() || this->phoneNumberFilter.is_empty()) &&
(!this->defFilterNumber2() || this->phoneNumberFilter2.is_empty())) {
return(true);
}
switch(phoneNumberFilterCondition12) {
case _cond12_and:
return((!this->defFilterNumber() || this->phoneNumberFilter.checkNumber(numb)) &&
(!this->defFilterNumber2() || this->phoneNumberFilter2.checkNumber(numb2)));
case _cond12_or:
return((!this->defFilterNumber() || (!this->phoneNumberFilter.is_empty() && this->phoneNumberFilter.checkNumber(numb))) ||
(!this->defFilterNumber2() || (!this->phoneNumberFilter2.is_empty() && this->phoneNumberFilter2.checkNumber(numb2))));
case _cond12_both_directions:
return(((!this->defFilterNumber() || this->phoneNumberFilter.checkNumber(numb)) &&
(!this->defFilterNumber2() || this->phoneNumberFilter2.checkNumber(numb2))) ||
((!this->defFilterNumber() || this->phoneNumberFilter.checkNumber(numb2)) &&
(!this->defFilterNumber2() || this->phoneNumberFilter2.checkNumber(numb))));
default:
return(true);
}
return(false);
}
bool FraudAlert::okFilterDomain(const char *domain) {
if(!this->defFilterDomain() || this->domainFilter.is_empty()) {
return(true);
}
return(this->domainFilter.check(domain));
}
bool FraudAlert::okFilter(sFraudCallInfo *callInfo) {
if(!this->okFilterIp(callInfo->caller_ip, callInfo->called_ip)) {
return(false);
}
if(!this->okFilterPhoneNumber(callInfo->caller_number.c_str(), callInfo->called_number.c_str())) {
return(false);
}
if(!this->okFilterDomain(callInfo->caller_domain.c_str())) {
return(false);
}
if(this->defDestPrefixes() && this->destPrefixes.size()) {
if(!callInfo->country_prefix_called.length()) {
return(false);
}
bool ok = false;
for(unsigned i = 0; i < this->destPrefixes.size(); i++) {
if(this->destPrefixes[i] == callInfo->country_prefix_called) {
ok = true;
break;
}
}
if(!ok) {
return(false);
}
}
return(true);
}
bool FraudAlert::okFilter(sFraudRtpStreamInfo *rtpStreamInfo) {
if(!this->okFilterIp(rtpStreamInfo->rtp_src_ip, rtpStreamInfo->rtp_dst_ip)) {
return(false);
}
if(!this->okFilterPhoneNumber(rtpStreamInfo->caller_number.c_str(), rtpStreamInfo->called_number.c_str())) {
return(false);
}
return(true);
}
bool FraudAlert::okFilter(sFraudEventInfo *eventInfo) {
if(!this->okFilterIp(eventInfo->src_ip, eventInfo->dst_ip)) {
return(false);
}
if(this->defFilterUA() && !this->uaFilter.checkUA(eventInfo->ua.c_str())) {
return(false);
}
return(true);
}
bool FraudAlert::okFilter(sFraudRegisterInfo */*registerInfo*/) {
return(true);
}
bool FraudAlert::okDayHour(time_t at) {
if((hour_from >= 0 && hour_to >= 0) ||
day_of_week_set) {
tm attm = time_r(&at, fraudAlerts->getGuiTimezone());
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(sqlEscapeString(alertInfo->getJson()), "alert_info");
row.add(opt_id_sensor > 0 ? opt_id_sensor : 0, "id_sensor", opt_id_sensor <= 0);
sqlStore->query_lock(sqlDbFraud->insertQuery("fraud_alert_info", row).c_str(), STORE_PROC_ID_FRAUD_ALERT_INFO);
delete alertInfo;
}
FraudAlertReg_filter::FraudAlertReg_filter(FraudAlertReg *parent) {
filter = NULL;
ev_counter = 0;
start_interval = 0;
this->parent = parent;
}
FraudAlertReg_filter::~FraudAlertReg_filter() {
if(filter) {
delete filter;
}
}
void FraudAlertReg_filter::evRegister(sFraudRegisterInfo *registerInfo) {
if(!okFilter(registerInfo)) {
return;
}
++ev_counter;
ev_map[*(sFraudRegisterInfo_id*)registerInfo] = *(sFraudRegisterInfo_data*)registerInfo;
ev_map[*(sFraudRegisterInfo_id*)registerInfo].time_from_prev_state =
registerInfo->at > registerInfo->prev_state_at ? (registerInfo->at - registerInfo->prev_state_at) / 1000000ull : 0;
if(!start_interval) {
start_interval = registerInfo->at;
}
if(parent->intervalLength ?
registerInfo->at - start_interval > parent->intervalLength * 1000000ull :
ev_counter >= parent->intervalLimit) {
if(ev_counter >= parent->intervalLimit) {
FraudAlertInfo_reg *alertInfo = new FILE_LINE(7003) FraudAlertInfo_reg(parent);
alertInfo->set(description.c_str(), ev_counter, &ev_map);
parent->evAlert(alertInfo);
}
ev_counter = 0;
ev_map.clear();
start_interval = registerInfo->at;
}
}
bool FraudAlertReg_filter::okFilter(sFraudRegisterInfo *registerInfo) {
if(!parent->okFilter(registerInfo)) {
return(false);
}
if(filter && !filter->check(registerInfo)) {
return(false);
}
return(true);
}
void FraudAlertReg_filter::setFilter(const char *description, const char *filter_str) {
this->description = description;
this->filter_str = filter_str;
if(!this->filter_str.empty()) {
filter = new cRegisterFilterFraud((char*)this->filter_str.c_str());
}
}
FraudAlertReg::FraudAlertReg(FraudAlert::eFraudAlertType type, unsigned int dbId)
: FraudAlert(type, dbId) {
}
FraudAlertReg::~FraudAlertReg() {
map<u_int32_t, FraudAlertReg_filter*>::iterator iter;
for(iter = filters.begin(); iter != filters.end(); iter++) {
delete iter->second;
}
for(unsigned i = 0; i < ua_regex.size(); i++) {
delete ua_regex[i];
}
}
void FraudAlertReg::evRegister(sFraudRegisterInfo *registerInfo) {
map<u_int32_t, FraudAlertReg_filter*>::iterator iter;
for(iter = filters.begin(); iter != filters.end(); iter++) {
iter->second->evRegister(registerInfo);
}
}
bool FraudAlertReg::checkUA(const char *ua) {
if(!ua_regex.size()) {
return(true);
}
if(ua && *ua) {
for(unsigned i = 0; i < ua_regex.size(); i++) {
if(ua_regex[i]->match(ua) > 0) {
return(ua_reg_neg ? false : true);
}
}
}
return(ua_reg_neg ? true : false);
}
bool FraudAlertReg::checkRegisterTimeSecLe(sFraudRegisterInfo *registerInfo) {
return((registerInfo->state != rs_OK && registerInfo->state != rs_UnknownMessageOK) &&
(registerInfo->prev_state == rs_OK || registerInfo->prev_state == rs_UnknownMessageOK) &&
registerInfo->at > registerInfo->prev_state_at &&
registerInfo->at - registerInfo->prev_state_at <= registerTimeSecLe * 1000000ull);
}
void FraudAlertReg::loadAlertVirt() {
intervalLength = atol(dbRow["reg_interval_length_sec"].c_str());
intervalLimit = atol(dbRow["reg_interval_limit"].c_str());
vector<string> ua_split = split(dbRow["reg_ua"].c_str(), split(",|;|\r|\n", "|"), true);
for(unsigned i = 0; i < ua_split.size(); i ++) {
string ua = ua_split[i];
if(ua[0] == '%') {
ua = ".*" + ua.substr(1);
}
if(ua[ua.length() - 1] == '%') {
ua = ua.substr(0, ua.length() - 1) + ".*";
}
cRegExp *regExp = new cRegExp(ua.c_str());
if(regExp->isOK()) {
ua_regex.push_back(regExp);
} else {
delete regExp;
}
}
ua_reg_neg = atoi(dbRow["reg_ua_neg"].c_str());
registerTimeSecLe = atol(dbRow["reg_register_time_sec_le"].c_str());
loadFilters();
}
void FraudAlertReg::loadFilters() {
SqlDb *sqlDb = createSqlObject();
sqlDb->query(string(
"select *\
from alerts_reg_filters\
where alerts_id = ") + intToString(dbId));
SqlDb_row dbRowFilters;
while((dbRowFilters = sqlDb->fetchRow())) {
FraudAlertReg_filter *filter = new FraudAlertReg_filter(this);
filter->setFilter(dbRowFilters["descr"].c_str(), dbRowFilters["config_filter_register"].c_str());
filters[atoi(dbRowFilters["id"].c_str())] = filter;
}
if(filters.size() == 0) {
FraudAlertReg_filter *filter = new FraudAlertReg_filter(this);
filter->setFilter("main", dbRow["config_filter_register"].c_str());
filters[0] = filter;
}
delete sqlDb;
}
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_rtpStreamInfo::FraudAlert_rcc_rtpStreamInfo() {
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,
FraudAlert_rcc *parent)
: FraudAlert_rcc_base(parent) {
this->descr = descr;
this->concurentCallsLimitLocal_tp = concurentCallsLimitLocal;
this->concurentCallsLimitInternational_tp = concurentCallsLimitInternational;
this->concurentCallsLimitBoth_tp = concurentCallsLimitBoth;
this->dbId = dbId;
this->parent = parent;
this->loadTimePeriods();
}
void FraudAlert_rcc_timePeriods::loadTimePeriods() {
SqlDb *sqlDb = createSqlObject();
sqlDb->query(string(
"select *\
from alerts_fraud_timeperiod\
join cb_timeperiod on (cb_timeperiod.id = alerts_fraud_timeperiod.timeperiod_id)\
where alerts_fraud_id = ") + intToString(dbId));
SqlDb_row row;
while((row = sqlDb->fetchRow())) {
timePeriods.push_back(TimePeriod(&row));
}
delete sqlDb;
}
FraudAlert_rcc_base::FraudAlert_rcc_base(FraudAlert_rcc *parent) {
this->parent = parent;
}
FraudAlert_rcc_base::~FraudAlert_rcc_base() {
map<u_int32_t, FraudAlert_rcc_callInfo*>::iterator callsIter_by_ip;
for(callsIter_by_ip = calls_by_ip.begin(); callsIter_by_ip != calls_by_ip.end(); ++callsIter_by_ip) {
delete callsIter_by_ip->second;
}
map<string, FraudAlert_rcc_callInfo*>::iterator callsIter_by_number;
for(callsIter_by_number = calls_by_number.begin(); callsIter_by_number != calls_by_number.end(); ++callsIter_by_number) {
delete callsIter_by_number->second;
}
map<d_u_int32_t, FraudAlert_rcc_rtpStreamInfo*>::iterator callsIter_by_rtp_stream;
for(callsIter_by_rtp_stream = calls_by_rtp_stream.begin(); callsIter_by_rtp_stream != calls_by_rtp_stream.end(); ++callsIter_by_rtp_stream) {
delete callsIter_by_rtp_stream->second;
}
}
void FraudAlert_rcc_base::evCall_rcc(sFraudCallInfo *callInfo, FraudAlert_rcc *alert, bool timeperiod) {
if(parent->typeBy == FraudAlert::_typeBy_rtp_stream_ip ||
parent->typeBy == FraudAlert::_typeBy_rtp_stream_ip_group) {
return;
}
FraudAlert_rcc_callInfo *call = NULL;
map<u_int32_t, FraudAlert_rcc_callInfo*>::iterator callsIter_by_ip;
map<string, FraudAlert_rcc_callInfo*>::iterator callsIter_by_number;
switch(callInfo->typeCallInfo) {
case sFraudCallInfo::typeCallInfo_connectCall:
if(this->checkTime(callInfo->at_connect)) {
sIdAlert idAlert;
switch(parent->typeBy) {
case FraudAlert::_typeBy_source_ip:
idAlert.ip = callInfo->caller_ip;
callsIter_by_ip = calls_by_ip.find(callInfo->caller_ip);
if(callsIter_by_ip != calls_by_ip.end()) {
call = callsIter_by_ip->second;
} else {
call = new FILE_LINE(7004) FraudAlert_rcc_callInfo;
calls_by_ip[callInfo->caller_ip] = call;
}
break;
case FraudAlert::_typeBy_source_number:
idAlert.number = callInfo->caller_number;
callsIter_by_number = calls_by_number.find(callInfo->caller_number);
if(callsIter_by_number != calls_by_number.end()) {
call = callsIter_by_number->second;
} else {
call = new FILE_LINE(7005) FraudAlert_rcc_callInfo;
calls_by_number[callInfo->caller_number] = call;
}
break;
case FraudAlert::_typeBy_summary:
call = &this->calls_summary;
break;
default:
break;
}
if(call) {
if(callInfo->local_called_number) {
call->addLocal(callInfo->callid.c_str(), callInfo->at_connect);
} else {
call->addInternational(callInfo->callid.c_str(), callInfo->at_connect);
}
if(sverb.fraud) {
syslog(LOG_NOTICE, "fraud %s / %s rcc ++ %s / %s / %lu",
alert->FraudAlert::getDescr().c_str(),
callInfo->local_called_number ? "local" : "international",
parent->typeBy == FraudAlert::_typeBy_source_ip ? inet_ntostring(callInfo->caller_ip).c_str() :
parent->typeBy == FraudAlert::_typeBy_source_number ? callInfo->caller_number.c_str() : "",
callInfo->callid.c_str(),
callInfo->local_called_number ? call->calls_local.size() : call->calls_international.size());
}
if(sverb.fraud_file_log && parent->verbLog) {
fprintf(parent->verbLog,
"%s|%i|+|%s|%s|%s|%lu\n",
sqlDateTimeString(time(NULL)).c_str(),
callInfo->typeCallInfo,
callInfo->local_called_number ? "local" : "international",
parent->typeBy == FraudAlert::_typeBy_source_ip ? inet_ntostring(callInfo->caller_ip).c_str() :