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ng_parser.cpp
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ng_parser.cpp
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#include <iostream>
#include <cstdio>
#include <fstream>
#include <cstring>
#include <string>
#include <cctype>
#include <sstream>
#include <cstdlib>
#include <set>
extern "C" {
#include <signal.h>
#include <sys/stat.h>
}
#include "ng_config.h"
#include "ng_parser.h"
static std::string escapeJsonString(const std::string& input) {
std::ostringstream ss;
for (std::string::const_iterator iter = input.begin(); iter != input.end(); iter++) {
switch (*iter) {
case '\\': ss << "\\\\"; break;
case '"': ss << "\\\""; break;
//case '/': ss << "\\/"; break;
case '\b': ss << "\\b"; break;
case '\f': ss << "\\f"; break;
case '\n': ss << "\\n"; break;
case '\r': ss << "\\r"; break;
case '\t': ss << "\\t"; break;
default: ss << *iter; break;
}
}
return ss.str();
}
static void format_date(const uint32_t *diff, std::string *buffer)
{
static char tbuffer[512];
static uint32_t day, hour, min;
day = hour = min = 0;
memset(tbuffer,0,512);
static uint32_t seconds;
seconds = *diff;
if (seconds > 86400) {
day = seconds/86400;
seconds %= 86400;
}
if (seconds > 3600) {
hour = seconds/3600;
seconds %= 3600;
}
if (seconds > 60) {
min = seconds/60;
seconds %= 60;
}
snprintf(tbuffer, 512, "%dd %dh %dm %ds", day, hour, min, seconds);
buffer->assign(tbuffer);
}
static void format_status_service(const uint8_t *st, std::string *buffer)
{
if (*st & SERVICE_OK) {
buffer->assign("OK");
} else if (*st & SERVICE_WARNING) {
buffer->assign("WARNING");
} else if (*st & SERVICE_CRITICAL) {
buffer->assign("CRITICAL");
} else if (*st & SERVICE_UNKNOWN) {
buffer->assign("UNKNOWN");
} else if (*st & SERVICE_PENDING) {
buffer->assign("PENDING");
} else {
buffer->assign("-");
}
}
NagiosParser::NagiosParser(const std::string& filepath)
{
this->is_nagios_running = false;
this->created = 0;
this->fbuffer = nullptr;
int length;
std::ifstream filestr;
filestr.open(filepath.c_str(), std::ifstream::in|std::ifstream::binary);
if (!filestr.is_open())
{
std::cerr << "Error: statusfile error (" << filepath << ")." << std::endl;
exit(EXIT_FAILURE);
}
filestr.seekg(0, std::ios::end);
length = (int)filestr.tellg();
filestr.seekg(0, std::ios::beg);
this->fbuffer = new char[length];
this->flength = length;
filestr.read(this->fbuffer, length);
filestr.close();
}
NagiosParser::~NagiosParser()
{
this->gc();
}
void NagiosParser::gc()
{
if (this->fbuffer != nullptr)
delete [] this->fbuffer;
this->fbuffer = nullptr;
}
void NagiosParser::parse()
{
int linesize = 0;
int read_size = 0;
int rc = 0;
nagios_host_t hostdata;
nagios_service_t servicedata;
int len_helper = 0;
int category = 0;
int i = 0, e = 0;
int value_length = 0, key_length = 0;
char *buffer_current = this->fbuffer;
char *buffer_key = nullptr, *buffer_value = nullptr;
char *eq_helper = nullptr;
time_t now = time(nullptr);
pid_t nagiospid = 0;
nagios_comment_t nagios_comment;
nagios_downtime_t nagios_downtime;
std::string hostname, servicename;
struct stat st;
bool check_inner = false;
char filenamebuffer[FILENAME_MAX];
std::string include_fields_raw;
std::set<std::string> include_fields;
memset(filenamebuffer,0,FILENAME_MAX);
memset(&st, 0, sizeof(struct stat));
this->reset_service(&servicedata);
this->reset_host(&hostdata);
this->reset_downtime(&nagios_downtime);
this->reset_comment(&nagios_comment);
char *buffer_newline = nullptr;
// will run only once, performance does not matter we can use std::string find
include_fields_raw = config::getInstance()->get("include-fields", "");
if (!include_fields_raw.empty()) {
size_t if_start = 0;
size_t if_offset = 0;
while (true) {
if_offset = include_fields_raw.find(',', if_offset);
if (if_offset == std::string::npos) {
if (if_start != include_fields_raw.length()) {
include_fields.insert(include_fields_raw.substr(if_start));
}
break;
}
if (if_offset-if_start > 0) {
include_fields.insert(include_fields_raw.substr(if_start, if_offset - if_start));
}
if_offset++;
if_start = if_offset;
}
}
const auto include_fields_end = include_fields.end();
while (1)
{
buffer_newline = strchr(buffer_current, '\n');
if (buffer_newline == nullptr)
break;
*buffer_newline = 0;
linesize = buffer_newline-buffer_current;
check_inner = true;
if (linesize > 0 && isgraph(buffer_current[0])) {
check_inner = false;
if (linesize > 10 && strncmp(buffer_current, "hoststatus", 10) == 0) {
category = C_HOSTSTATUS;
} else if (linesize > 13 && strncmp(buffer_current, "servicestatus", 13) == 0) {
category = C_SERVICESTATUS;
} else if (linesize > 13 && strncmp(buffer_current, "programstatus", 13) == 0) {
category = C_PROGRAMSTATUS;
} else if (linesize > 4 && strncmp(buffer_current, "info", 4) == 0) {
category = C_INFO;
} else if (linesize > 15 && strncmp(buffer_current, "servicedowntime", 15) == 0) {
category = C_SERVICEDOWNTIME;
} else if (linesize > 12 && strncmp(buffer_current, "hostdowntime", 12) == 0) {
category = C_HOSTDOWNTIME;
} else if (linesize > 14 && strncmp(buffer_current, "servicecomment", 14) == 0) {
category = C_SERVICECOMMENT;
} else if (linesize > 11 && strncmp(buffer_current, "hostcomment", 11) == 0) {
category = C_HOSTCOMMENT;
} else {
category = C_UNKNOWN;
}
} else if (linesize > 0 && buffer_current[linesize-1] == '}') {
len_helper = 0;
for (i=0, e=linesize-1; i<e; ++i)
{
if (isgraph(buffer_current[i]))
{
i=e;
len_helper = 1;
}
}
if (len_helper == 0) {
check_inner = false;
{
// HARD STATE
if ((hostdata.flags & (HOST_PASSIVE_CHECKS_DISABLED|HOST_ACTIVE_CHECKS_DISABLED)) != 0)
hostdata.flags |= HOST_CHECKS_DISABLED;
else
hostdata.flags |= HOST_CHECKS_ENABLED;
if ((servicedata.flags & (SERVICE_PASSIVE_CHECKS_DISABLED|SERVICE_ACTIVE_CHECKS_DISABLED)) != 0)
servicedata.flags |= SERVICE_CHECKS_DISABLED;
else
servicedata.flags |= SERVICE_CHECKS_ENABLED;
// CATEGORY END.
if (category == C_HOSTSTATUS) {
this->add_host(&hostdata);
this->reset_host(&hostdata);
} else if (category == C_SERVICESTATUS) {
this->add_service(&servicedata);
this->reset_service(&servicedata);
} else if (category == C_HOSTCOMMENT) {
this->add_hostcomment(hostname, &nagios_comment);
this->reset_comment(&nagios_comment);
} else if (category == C_SERVICECOMMENT) {
this->add_servicecomment(hostname, servicename, &nagios_comment);
this->reset_comment(&nagios_comment);
} else if (category == C_HOSTDOWNTIME) {
this->add_hostdowntime(hostname, &nagios_downtime);
this->reset_downtime(&nagios_downtime);
} else if (category == C_SERVICEDOWNTIME) {
this->add_servicedowntime(hostname, servicename, &nagios_downtime);
this->reset_downtime(&nagios_downtime);
}
// DO THE TMP WRITES
}
}
}
if (check_inner) {
eq_helper = strchr(buffer_current, '=');
if (eq_helper == nullptr)
goto skip_line;
*eq_helper = 0;
len_helper = eq_helper-buffer_current;
buffer_key = buffer_current;
for (i=0; i<len_helper; i++)
{
if (isspace(buffer_current[i]))
buffer_key++;
else
i=len_helper;
}
key_length = eq_helper-buffer_key;
value_length = buffer_newline-eq_helper-1;
len_helper = value_length;
buffer_value = eq_helper+1;
//printf("'%s' (%d) - '%s' (%d)\n", buffer_key, key_length, buffer_value, value_length);
//check_helper = strtoull(tmpstring2.c_str(), NULL, 10);
switch (category)
{
case C_HOSTSTATUS:
if (key_length == 11 && strncmp(buffer_key, "is_flapping", 11) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_IS_FLAPPING;
else
hostdata.flags |= HOST_IS_NOT_FLAPPING;
} else if (key_length == 22 && strncmp(buffer_key, "flap_detection_enabled", 22) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_FLAP_DETECTION_ENABLED;
else
hostdata.flags |= HOST_FLAP_DETECTION_DISABLED;
} else if (key_length == 13 && strncmp(buffer_key, "plugin_output", 13) == 0) {
hostdata.output = buffer_value;
} else if (key_length == 13 && strncmp(buffer_key, "current_state", 13) == 0) {
switch (buffer_value[0] - 48)
{
case 0:
hostdata.status |= HOST_UP;
break;
case 1:
hostdata.status |= HOST_DOWN;
break;
case 2:
hostdata.status |= HOST_UNREACHABLE;
break;
case 3:
hostdata.status |= HOST_PENDING;
break;
default:
hostdata.status |= HOST_UNREACHABLE;
}
} else if (key_length == 24 && strncmp(buffer_key, "scheduled_downtime_depth", 24) == 0) {
if (buffer_value[0] == '1') {
hostdata.flags |= HOST_SCHEDULED_DOWNTIME;
} else {
hostdata.flags |= HOST_NO_SCHEDULED_DOWNTIME;
}
} else if (key_length == 29 && strncmp(buffer_key, "problem_has_been_acknowledged", 29) == 0) {
if (buffer_value[0] == '1') {
hostdata.flags |= HOST_STATE_ACKNOWLEDGED;
} else {
hostdata.flags |= HOST_STATE_UNACKNOWLEDGED;
}
} else if (key_length == 10 && strncmp(buffer_key, "state_type", 10) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_HARD_STATE;
else
hostdata.flags |= HOST_SOFT_STATE;
} else if (key_length == 21 && strncmp(buffer_key, "notifications_enabled", 21) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_NOTIFICATIONS_ENABLED;
else
hostdata.flags |= HOST_NOTIFICATIONS_DISABLED;
} else if (key_length == 10 && strncmp(buffer_key, "check_type", 10) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_ACTIVE_CHECK;
else
hostdata.flags |= HOST_PASSIVE_CHECK;
} else if (key_length == 22 && strncmp(buffer_key, "passive_checks_enabled", 22) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_PASSIVE_CHECKS_ENABLED;
else
hostdata.flags |= HOST_PASSIVE_CHECKS_DISABLED;
} else if (key_length == 21 && strncmp(buffer_key, "active_checks_enabled", 21) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_ACTIVE_CHECKS_ENABLED;
else
hostdata.flags |= HOST_ACTIVE_CHECKS_DISABLED;
} else if (key_length == 21 && strncmp(buffer_key, "event_handler_enabled", 21) == 0) {
if (buffer_value[0] == '1')
hostdata.flags |= HOST_EVENT_HANDLER_ENABLED;
else
hostdata.flags |= HOST_EVENT_HANDLER_DISABLED;
} else if (key_length == 17 && strncmp(buffer_key, "last_state_change", 17) == 0) {
hostdata.last_state_change = (time_t)strtoull(buffer_value, nullptr, 10);
hostdata.last_state_diff = now - hostdata.last_state_change;
} else if (key_length == 12 && strncmp(buffer_key, "max_attempts", 12) == 0) {
hostdata.max_attempts = strtoull(buffer_value, nullptr, 10);
} else if (key_length == 15 && strncmp(buffer_key, "current_attempt", 15) == 0) {
hostdata.current_attempt = strtoull(buffer_value, nullptr, 10);
} else if (key_length == 9 && strncmp(buffer_key, "host_name", 9) == 0) {
hostdata.hostname = buffer_value;
} else if (key_length > 0 && !include_fields.empty() && include_fields.find(buffer_key) != include_fields_end) {
hostdata.extra[buffer_key] = buffer_value;
}
break;
case C_SERVICESTATUS:
if (key_length == 11 && strncmp(buffer_key, "is_flapping", 11) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_IS_FLAPPING;
else
servicedata.flags |= SERVICE_IS_NOT_FLAPPING;
} else if (key_length == 22 && strncmp(buffer_key, "flap_detection_enabled", 22) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_FLAP_DETECTION_ENABLED;
else
servicedata.flags |= SERVICE_FLAP_DETECTION_DISABLED;
} else if (key_length == 13 && strncmp(buffer_key, "plugin_output", 13) == 0) {
servicedata.output = buffer_value;
} else if (key_length == 13 && strncmp(buffer_key, "current_state", 13) == 0) {
switch (buffer_value[0] - 48)
{
case 0:
servicedata.status |= SERVICE_OK;
break;
case 1:
servicedata.status |= SERVICE_WARNING;
break;
case 2:
servicedata.status |= SERVICE_CRITICAL;
break;
case 3:
servicedata.status |= SERVICE_UNKNOWN;
break;
default:
servicedata.status |= SERVICE_PENDING;
}
} else if (key_length == 24 && strncmp(buffer_key, "scheduled_downtime_depth", 24) == 0) {
if (buffer_value[0] == '1') {
servicedata.flags |= SERVICE_SCHEDULED_DOWNTIME;
} else {
servicedata.flags |= SERVICE_NO_SCHEDULED_DOWNTIME;
}
} else if (key_length == 29 && strncmp(buffer_key, "problem_has_been_acknowledged", 29) == 0) {
if (buffer_value[0] == '1') {
servicedata.flags |= SERVICE_STATE_ACKNOWLEDGED;
} else {
servicedata.flags |= SERVICE_STATE_UNACKNOWLEDGED;
}
} else if (key_length == 10 && strncmp(buffer_key, "state_type", 10) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_HARD_STATE;
else
servicedata.flags |= SERVICE_SOFT_STATE;
} else if (key_length == 21 && strncmp(buffer_key, "notifications_enabled", 21) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_NOTIFICATIONS_ENABLED;
else
servicedata.flags |= SERVICE_NOTIFICATIONS_DISABLED;
} else if (key_length == 10 && strncmp(buffer_key, "check_type", 10) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_ACTIVE_CHECK;
else
servicedata.flags |= SERVICE_PASSIVE_CHECK;
} else if (key_length == 22 && strncmp(buffer_key, "passive_checks_enabled", 22) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_PASSIVE_CHECKS_ENABLED;
else
servicedata.flags |= SERVICE_PASSIVE_CHECKS_DISABLED;
} else if (key_length == 21 && strncmp(buffer_key, "active_checks_enabled", 21) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_ACTIVE_CHECKS_ENABLED;
else
servicedata.flags |= SERVICE_ACTIVE_CHECKS_DISABLED;
} else if (key_length == 21 && strncmp(buffer_key, "event_handler_enabled", 21) == 0) {
if (buffer_value[0] == '1')
servicedata.flags |= SERVICE_EVENT_HANDLER_ENABLED;
else
servicedata.flags |= SERVICE_EVENT_HANDLER_DISABLED;
} else if (key_length == 17 && strncmp(buffer_key, "last_state_change", 17) == 0) {
servicedata.last_state_change = (time_t)strtoull(buffer_value, nullptr, 10);
servicedata.last_state_diff = now - servicedata.last_state_change;
} else if (key_length == 12 && strncmp(buffer_key, "max_attempts", 12) == 0) {
servicedata.max_attempts = strtoull(buffer_value, nullptr, 10);
} else if (key_length == 15 && strncmp(buffer_key, "current_attempt", 15) == 0) {
servicedata.current_attempt = strtoull(buffer_value, nullptr, 10);
} else if (key_length == 19 && strncmp(buffer_key, "service_description", 19) == 0) {
servicedata.servicename = buffer_value;
} else if (key_length == 9 && strncmp(buffer_key, "host_name", 9) == 0) {
servicedata.hostname = buffer_value;
} else if (key_length > 0 && !include_fields.empty() && include_fields.find(buffer_key) != include_fields_end) {
servicedata.extra[buffer_key] = buffer_value;
}
break;
case C_INFO:
if (key_length == 7 && strncmp(buffer_key, "created", 7) == 0) {
now = (time_t)strtoull(buffer_value, nullptr, 10);
this->created = now;
}
break;
case C_PROGRAMSTATUS:
if (key_length == 10 && strncmp(buffer_key, "nagios_pid", 10) == 0) {
nagiospid = atoi(buffer_value);
if (nagiospid > 0) {
rc = kill(nagiospid, 0);
if (rc != 0) {
snprintf(filenamebuffer,FILENAME_MAX,"/proc/%d",nagiospid);
if (stat(filenamebuffer, &st) == 0)
this->is_nagios_running = true;
} else {
this->is_nagios_running = true;
}
}
}
break;
case C_SERVICEDOWNTIME:
if (key_length == 19 && strncmp(buffer_key, "service_description", 19) == 0) {
servicename = buffer_value;
} else if (key_length == 9 && strncmp(buffer_key, "host_name", 9) == 0) {
hostname = buffer_value;
} else if (key_length == 6 && strncmp(buffer_key, "author", 6) == 0) {
nagios_downtime.author = buffer_value;
} else if (key_length == 10 && strncmp(buffer_key, "entry_time", 10) == 0) {
nagios_downtime.added = (time_t)strtoull(buffer_value, nullptr, 10);
} else if (key_length == 10 && strncmp(buffer_key, "start_time", 10) == 0) {
nagios_downtime.start_time = (time_t)strtoull(buffer_value, nullptr, 10);
} else if (key_length == 9 && strncmp(buffer_key, "end_time", 8) == 0) {
nagios_downtime.end_time = (time_t)strtoull(buffer_value, nullptr, 10);
} else if (key_length == 5 && strncmp(buffer_key, "fixed", 5) == 0) {
nagios_downtime.fixed = (buffer_value[0] == '1' ? true : false);
} else if (key_length == 8 && strncmp(buffer_key, "duration", 8) == 0) {
nagios_downtime.duration = (time_t)strtoull(buffer_value, nullptr, 10);
} else if (key_length == 7 && strncmp(buffer_key, "comment", 7) == 0) {
nagios_downtime.comment = buffer_value;
}
break;
case C_HOSTCOMMENT:
if (key_length == 19 && strncmp(buffer_key, "service_description", 19) == 0) {
servicename = buffer_value;
} else if (key_length == 9 && strncmp(buffer_key, "host_name", 9) == 0) {
hostname = buffer_value;
} else if (key_length == 6 && strncmp(buffer_key, "author", 6) == 0) {
nagios_comment.author = buffer_value;
} else if (key_length == 10 && strncmp(buffer_key, "entry_time", 10) == 0) {
nagios_comment.added = (time_t)strtoull(buffer_value, nullptr, 10);
} else if (key_length == 7 && strncmp(buffer_key, "comment", 7) == 0) {
nagios_comment.comment = buffer_value;
}
break;
case C_SERVICECOMMENT:
if (key_length == 19 && strncmp(buffer_key, "service_description", 19) == 0) {
servicename = buffer_value;
} else if (key_length == 9 && strncmp(buffer_key, "host_name", 9) == 0) {
hostname = buffer_value;
} else if (key_length == 6 && strncmp(buffer_key, "author", 6) == 0) {
nagios_comment.author = buffer_value;
} else if (key_length == 10 && strncmp(buffer_key, "entry_time", 10) == 0) {
nagios_comment.added = (time_t)strtoull(buffer_value, nullptr, 10);
} else if (key_length == 7 && strncmp(buffer_key, "comment", 7) == 0) {
nagios_comment.comment = buffer_value;
}
break;
}
}
skip_line:
read_size += linesize+1;
if (read_size >= this->flength)
break;
buffer_current += linesize+1;
}
this->gc();
}
void NagiosParser::add_host(nagios_host_t *hostdata)
{
this->hosts[hostdata->hostname] = *hostdata;
}
void NagiosParser::add_service(nagios_service_t *servicedata)
{
static
std::string concat;
nagiosmap_host_t::iterator it_current = this->hosts.find(servicedata->hostname);
nagios_host_t *hostdata = nullptr;
if (it_current != this->hosts.end()) {
hostdata = &(it_current->second);
++(it_current->second.services);
}
concat.assign(servicedata->hostname);
concat.append(servicedata->servicename);
servicedata->hostdata = hostdata;
this->services[concat] = *servicedata;
}
void NagiosParser::add_servicecomment(const std::string& hostname, const std::string& servicename, nagios_comment_t *d)
{
static std::string concat;
static nagiosmap_service_t::iterator it_c;
concat.assign(hostname);
concat.append(servicename);
it_c = this->services.find(concat);
if (it_c == this->services.end())
return;
it_c->second.comments.push_back(*d);
}
void NagiosParser::add_servicedowntime(const std::string& hostname, const std::string& servicename, nagios_downtime_t *d)
{
static std::string concat;
static nagiosmap_service_t::iterator it_c;
concat.assign(hostname);
concat.append(servicename);
it_c = this->services.find(concat);
if (it_c == this->services.end())
return;
it_c->second.downtime = *d;
}
void NagiosParser::add_hostcomment(const std::string& hostname, nagios_comment_t *d)
{
static nagiosmap_host_t::iterator it_c;
it_c = this->hosts.find(hostname);
if (it_c == this->hosts.end())
return;
it_c->second.comments.push_back(*d);
}
void NagiosParser::add_hostdowntime(const std::string& hostname, nagios_downtime_t *d)
{
static nagiosmap_host_t::iterator it_c;
it_c = this->hosts.find(hostname);
if (it_c == this->hosts.end())
return;
it_c->second.downtime = *d;
}
/*
bool NagiosParser::is_host_alive(std::string hostname)
{
static nagiosmap_host_t::iterator it_c;
it_c = this->hosts.find(hostname);
if (it_c == this->hosts.end())
return false;
if ((it_c->second.status & HOST_UP) == 0)
return false;
else
return true;
}
*/
void NagiosParser::reset_host(nagios_host_t *hostdata)
{
hostdata->hostname.clear();
hostdata->last_state_change =
hostdata->max_attempts =
hostdata->current_attempt =
hostdata->status =
hostdata->last_state_diff =
hostdata->services =
hostdata->services_visible =
hostdata->flags = 0;
this->reset_downtime(&hostdata->downtime);
}
void NagiosParser::reset_service(nagios_service_t *servicedata)
{
servicedata->hostname.clear();
servicedata->servicename.clear();
servicedata->last_state_change =
servicedata->max_attempts =
servicedata->current_attempt =
servicedata->status =
servicedata->last_state_diff =
servicedata->flags = 0;
servicedata->hostdata = nullptr;
this->reset_downtime(&servicedata->downtime);
}
void NagiosParser::reset_downtime(nagios_downtime_t *d)
{
d->added =
d->start_time =
d->end_time =
d->duration = 0;
d->fixed = false;
d->author.clear();
d->comment.clear();
}
void NagiosParser::reset_comment(nagios_comment_t *d)
{
d->added = 0;
d->author.clear();
d->comment.clear();
}
void NagiosParser::do_cgi()
{
printf("Refresh: 15\r\n");
printf("Content-type: text/plain\r\n\r\n");
}
void NagiosParser::do_json()
{
std::stringstream outjson;
uint32_t pversion = config::getInstance()->getInt("version", 0);
nagios_service_t *scurr = nullptr;
std::vector<std::string> jsonlist;
std::string callback_function_name = config::getInstance()->get("callback", "");
std::string statusbuffer("-");
std::string diffbuffer("-");
struct tm *ltime;
time_t now = time(nullptr);
ltime = localtime(&now);
if (callback_function_name.length() > 0) {
std::cout << callback_function_name << "(";
}
std::cout << "{"
<< "\"version\":" << pversion << ","
<< "\"running\":" << (this->is_nagios_running ? "1" : "0") << ","
<< "\"servertime\":" << now << ","
<< "\"localtime\":["
<< ltime->tm_isdst << ","
<< ltime->tm_gmtoff
<< "],"
<< "\"created\":" << this->created << ","
<< "\"data\":[";
for (auto it_c=this->services.begin(), it_e=this->services.end(); it_c != it_e; ++it_c) {
scurr = &(it_c->second);
format_status_service(&scurr->status, &statusbuffer);
format_date(&scurr->last_state_diff, &diffbuffer);
if (it_c != this->services.begin()) {
std::cout << ",";
}
std::cout
<< "{"
<< "\"last_state_change\":" << scurr->last_state_change << ","
<< R"("plugin_output":")" << escapeJsonString(scurr->output) << "\","
<< R"("status":")" << statusbuffer << "\","
<< R"("flags":)" << scurr->flags << ","
<< R"("hostname":")" << escapeJsonString(scurr->hostname) << "\","
<< R"("service":")" << escapeJsonString(scurr->servicename) << "\","
<< R"("host_alive":)" << ((scurr->hostdata != nullptr && (scurr->hostdata->status & HOST_UP) != 0) ? 1 : 0) << ","
<< R"("services_total":)" << (scurr->hostdata != nullptr ? scurr->hostdata->services : 0) << ","
<< R"("services_visible":)" << (scurr->hostdata != nullptr ? scurr->hostdata->services_visible : 0) << ","
<< R"("duration":")" << diffbuffer << "\"";
if (!scurr->extra.empty()) {
const auto ite_b = scurr->extra.begin();
std::cout << ",";
for (auto ite_c = ite_b, ite_e = scurr->extra.end(); ite_c != ite_e; ite_c++) {
if (ite_c != ite_b) {
std::cout << ",";
}
std::cout << "\"" << escapeJsonString(ite_c->first) << "\":\"" << escapeJsonString(ite_c->second) << "\"";
}
}
std::cout << "}";
}
std::cout << "]}";
if (callback_function_name.length() > 0) {
std::cout << ")";
}
}
void NagiosParser::filter()
{
volatile
bool show = false;
uint32_t servicestatustypes = config::getInstance()->getInt("servicestatustypes", 0);
uint32_t serviceprops = config::getInstance()->getInt("serviceprops", 0);
uint32_t hostprops = config::getInstance()->getInt("hostprops", 0);
std::string statusbuffer("-");
std::string diffbuffer("-");
nagios_service_t *scurr = nullptr;
nagios_host_t *hcurr = nullptr;
auto it_current = this->services.begin();
auto it_end = this->services.end();
nagiosmap_service_t::iterator it_temp;
while (it_current != it_end)
{
show = true;
scurr = &(it_current->second);
hcurr = it_current->second.hostdata;
format_status_service(&scurr->status, &statusbuffer);
format_date(&scurr->last_state_diff, &diffbuffer);
if (serviceprops != 0 && ((scurr->flags & serviceprops) != serviceprops)) {
show = false;
}
if (servicestatustypes != 0 && ((scurr->status & servicestatustypes) == 0)) {
show = false;
}
if (hcurr != nullptr && hostprops != 0 && ((hcurr->flags & hostprops) != hostprops)) {
show = false;
}
if (show) {
++it_current;
hcurr->services_visible++;
} else {
it_temp = it_current;
++it_current;
this->services.erase(it_temp);
}
}
}
void NagiosParser::do_plaintext()
{
std::string statusbuffer("-");
std::string diffbuffer("-");
nagios_service_t *scurr = nullptr;
for (auto it_c=this->services.begin(), it_e=this->services.end(); it_c != it_e; ++it_c)
{
scurr = &(it_c->second);
format_status_service(&scurr->status, &statusbuffer);
format_date(&scurr->last_state_diff, &diffbuffer);
printf("%-25s | %-20s | %-8s | %-16s | \"%s\"\n",
scurr->hostname.c_str(),
scurr->servicename.c_str(),
statusbuffer.c_str(),
diffbuffer.c_str(),
scurr->output.c_str()
);
}
}
void NagiosParser::run()
{
this->parse();
this->filter();
if (config::getInstance()->getInt("cgi", 0) == 1)
this->do_cgi();
if (config::getInstance()->getInt("json", 0) == 1)
this->do_json();
else
this->do_plaintext();
}