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rrd.php
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rrd.php
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<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2024 The Cacti Group |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
+-------------------------------------------------------------------------+
| Cacti: The Complete RRDtool-based Graphing Solution |
+-------------------------------------------------------------------------+
| This code is designed, written, and maintained by the Cacti Group. See |
| about.php and/or the AUTHORS file for specific developer information. |
+-------------------------------------------------------------------------+
| http://www.cacti.net/ |
+-------------------------------------------------------------------------+
*/
define('RRD_NL', " \\\n");
define('MAX_FETCH_CACHE_SIZE', 5);
if (read_config_option('storage_location')) {
/* load crypt libraries only if the Cacti RRDtool Proxy Server is in use */
set_include_path(CACTI_PATH_INCLUDE . '/vendor/phpseclib/');
include_once('Math/BigInteger.php');
include_once('Crypt/Base.php');
include_once('Crypt/Hash.php');
include_once('Crypt/Random.php');
include_once('Crypt/RSA.php');
include_once('Crypt/Rijndael.php');
global $encryption;
$encryption = true;
}
function escape_command($command) {
return $command; # we escape every single argument now, no need for 'special' escaping
#return preg_replace("/(\\\$|`)/", "", $command); # current cacti code
#TODO return preg_replace((\\\$(?=\w+|\*|\@|\#|\?|\-|\\\$|\!|\_|[0-9]|\(.*\))|`(?=.*(?=`)))","$2", $command); #suggested by ldevantier to allow for a single $
}
/** set the language environment variable for rrdtool functions
* @param string $lang - the desired language to set
* @return null
*/
function rrdtool_set_language($lang = -1) {
global $prev_lang;
$prev_lang = getenv('LANG');
if ($lang == -1) {
putenv('LANG=' . str_replace('-', '_', CACTI_LOCALE) . '.UTF-8');
} else {
putenv('LANG=en_EN.UTF-8');
}
}
/** restore the default language environment variable after rrdtool functions
* @return null
*/
function rrdtool_reset_language() {
global $prev_lang;
putenv('LANG=' . $prev_lang);
}
function rrd_init($output_to_term = true) {
global $config;
$args = func_get_args();
$local_storage = (isset($config['local_storage']) && $config['local_storage'] === true) ? true : false;
$function = ($local_storage === false && read_config_option('storage_location')) ? '__rrd_proxy_init' : '__rrd_init';
return call_user_func_array($function, $args);
}
function __rrd_init($output_to_term = true) {
global $config;
/* set the rrdtool default font */
if (read_config_option('path_rrdtool_default_font')) {
putenv('RRD_DEFAULT_FONT=' . read_config_option('path_rrdtool_default_font'));
}
rrdtool_set_language();
if ($output_to_term) {
$command = read_config_option('path_rrdtool') . ' - ';
} elseif ($config['cacti_server_os'] == 'win32') {
$command = read_config_option('path_rrdtool') . ' - > nul';
} else {
$command = read_config_option('path_rrdtool') . ' - > /dev/null 2>&1';
}
return popen($command, 'w');
}
function __rrd_proxy_init($logopt = 'WEBLOG') {
global $encryption;
$terminator = "_EOT_\r\n";
$encryption = true;
$rsa = new \phpseclib\Crypt\RSA();
$rrdp_socket = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($rrdp_socket === false) {
cacti_log('CACTI2RRDP ERROR: Unable to create socket to connect to RRDtool Proxy Server', false, $logopt, POLLER_VERBOSITY_LOW);
return false;
}
if (read_config_option('rrdp_load_balancing') == 'on') {
$rrdp_id = rand(1,2);
$rrdp = @socket_connect($rrdp_socket, (($rrdp_id == 1) ? read_config_option('rrdp_server') : read_config_option('rrdp_server_backup')), (($rrdp_id == 1) ? read_config_option('rrdp_port') : read_config_option('rrdp_port_backup')));
} else {
$rrdp_id = 1;
$rrdp = @socket_connect($rrdp_socket, read_config_option('rrdp_server'), read_config_option('rrdp_port'));
}
if ($rrdp === false) {
/* log entry ... */
cacti_log('CACTI2RRDP ERROR: Unable to connect to RRDtool Proxy Server #' . $rrdp_id, false, $logopt, POLLER_VERBOSITY_LOW);
/* ... and try to use backup path */
$rrdp_id = ($rrdp_id + 1) % 2;
$rrdp = @socket_connect($rrdp_socket, (($rrdp_id == 1) ? read_config_option('rrdp_server') : read_config_option('rrdp_server_backup')), (($rrdp_id == 1) ? read_config_option('rrdp_port') : read_config_option('rrdp_port_backup')));
if ($rrdp === false) {
cacti_log('CACTI2RRDP ERROR: Unable to connect to RRDtool Proxy Server #' . $rrdp_id, false, $logopt, POLLER_VERBOSITY_LOW);
return false;
}
}
$rrdp_fingerprint = ($rrdp_id == 1) ? read_config_option('rrdp_fingerprint') : read_config_option('rrdp_fingerprint_backup');
socket_write($rrdp_socket, read_config_option('rsa_public_key') . $terminator);
/* read public key being returned by the proxy server */
$rrdp_public_key = '';
while (1) {
$recv = socket_read($rrdp_socket, 1000, PHP_BINARY_READ);
if ($recv === false) {
/* timeout */
cacti_log('CACTI2RRDP ERROR: Public RSA Key Exchange - Time-out while reading', false, $logopt, POLLER_VERBOSITY_LOW);
$rrdp_public_key = false;
break;
}
if ($recv == '') {
cacti_log('CACTI2RRDP ERROR: Session closed by Proxy.', false, $logopt, POLLER_VERBOSITY_LOW);
/* session closed by Proxy */
break;
} else {
$rrdp_public_key .= $recv;
if (strpos($rrdp_public_key, $terminator) !== false) {
$rrdp_public_key = trim(trim($rrdp_public_key, $terminator));
break;
}
}
}
$rsa->loadKey($rrdp_public_key);
$fingerprint = $rsa->getPublicKeyFingerprint();
if ($rrdp_fingerprint != $fingerprint) {
cacti_log('CACTI2RRDP ERROR: Mismatch RSA Fingerprint.', false, $logopt, POLLER_VERBOSITY_LOW);
return false;
} else {
$rrdproxy = array($rrdp_socket, $rrdp_public_key);
/* set the rrdtool default font */
if (read_config_option('path_rrdtool_default_font')) {
rrdtool_execute("setenv RRD_DEFAULT_FONT '" . read_config_option('path_rrdtool_default_font') . "'", false, RRDTOOL_OUTPUT_NULL, $rrdproxy, $logopt = 'WEBLOG');
}
/* disable encryption */
$encryption = rrdtool_execute('setcnn encryption off', false, RRDTOOL_OUTPUT_BOOLEAN, $rrdproxy, $logopt = 'WEBLOG') ? false : true;
return $rrdproxy;
}
}
function rrd_close() {
global $config;
$args = func_get_args();
$local_storage = (isset($config['local_storage']) && $config['local_storage'] === true) ? true : false;
$function = ($local_storage === false && read_config_option('storage_location')) ? '__rrd_proxy_close' : '__rrd_close';
return call_user_func_array($function, $args);
}
function __rrd_close($rrdtool_pipe) {
/* close the rrdtool file descriptor */
if (is_resource($rrdtool_pipe)) {
pclose($rrdtool_pipe);
}
rrdtool_reset_language();
}
function __rrd_proxy_close($rrdp) {
/* close the rrdtool proxy server connection */
$terminator = "_EOT_\r\n";
if ($rrdp) {
socket_write($rrdp[0], encrypt('quit', $rrdp[1]) . $terminator);
@socket_shutdown($rrdp[0], 2);
@socket_close($rrdp[0]);
return;
}
}
function encrypt($output, $rsa_key) {
global $encryption;
if ($encryption) {
$rsa = new \phpseclib\Crypt\RSA();
$aes = new \phpseclib\Crypt\Rijndael();
$aes_key = \phpseclib\Crypt\Random::string(192);
$aes->setKey($aes_key);
$ciphertext = base64_encode($aes->encrypt($output));
$rsa->loadKey($rsa_key);
$aes_key = base64_encode($rsa->encrypt($aes_key));
$aes_key_length = str_pad(dechex(strlen($aes_key)),3,'0',STR_PAD_LEFT);
return $aes_key_length . $aes_key . $ciphertext;
} else {
return $output;
}
}
function decrypt($input) {
global $encryption;
if ($encryption) {
$rsa = new \phpseclib\Crypt\RSA();
$aes = new \phpseclib\Crypt\Rijndael();
$rsa_private_key = read_config_option('rsa_private_key');
$aes_key_length = hexdec(substr($input,0,3));
$aes_key = base64_decode(substr($input,3,$aes_key_length), true);
$ciphertext = base64_decode(substr($input,3 + $aes_key_length), true);
$rsa->loadKey($rsa_private_key);
$aes_key = $rsa->decrypt($aes_key);
$aes->setKey($aes_key);
$plaintext = $aes->decrypt($ciphertext);
return $plaintext;
} else {
return $input;
}
}
function rrdtool_execute() {
global $config;
$args = func_get_args();
$local_storage = (isset($config['local_storage']) && $config['local_storage'] === true) ? true : false;
$function = ($local_storage === false && read_config_option('storage_location')) ? '__rrd_proxy_execute' : '__rrd_execute';
return call_user_func_array($function, $args);
}
function __rrd_execute($command_line, $log_to_stdout, $output_flag, $rrdtool_pipe = null, $logopt = 'WEBLOG') {
global $config;
static $last_command;
if (!is_numeric($output_flag)) {
$output_flag = RRDTOOL_OUTPUT_STDOUT;
}
/* WIN32: before sending this command off to rrdtool, get rid
of all of the backslash (\) characters. Unix does not care; win32 does.
Also make sure to replace all of the backslashes at the end of the line,
but make sure not to get rid of newlines (\n) that are supposed to be
in there (text format) */
$command_line = str_replace("\\\n", ' ', $command_line);
/* output information to the log file if appropriate */
cacti_log('CACTI2RRD: ' . read_config_option('path_rrdtool') . " $command_line", $log_to_stdout, $logopt, POLLER_VERBOSITY_DEBUG);
$debug = '';
/* if we want to see the error output from rrdtool; make sure to specify this */
if ($config['cacti_server_os'] != 'win32') {
if (($output_flag == RRDTOOL_OUTPUT_STDERR || $output_flag == RRDTOOL_OUTPUT_RETURN_STDERR) && !is_resource($rrdtool_pipe)) {
$debug .= ' 2>&1';
}
}
/* use popen to eliminate the zombie issue */
if ($config['cacti_server_os'] == 'unix') {
$pipe_mode = 'r';
} else {
$pipe_mode = 'rb';
}
/* an empty $rrdtool_pipe array means no fp is available */
if (!is_resource($rrdtool_pipe)) {
if (substr($command_line, 0, 5) == 'fetch' || substr($command_line, 0, 4) == 'info') {
rrdtool_set_language('en');
} else {
rrdtool_set_language();
}
cacti_session_close();
if (is_file(read_config_option('path_rrdtool')) && is_executable(read_config_option('path_rrdtool'))) {
$descriptorspec = array(
0 => array('pipe', 'r'),
1 => array('pipe', 'w')
);
if ($config['is_web']) {
if (isset($_COOKIE['CactiTimeZone'])) {
$gmt_offset = $_COOKIE['CactiTimeZone'];
cacti_time_zone_set($gmt_offset);
}
}
$process = proc_open(read_config_option('path_rrdtool') . ' - ' . $debug, $descriptorspec, $pipes);
if (!is_resource($process)) {
unset($process);
} else {
fwrite($pipes[0], escape_command($command_line) . "\r\nquit\r\n");
fclose($pipes[0]);
$fp = $pipes[1];
}
} else {
cacti_log("ERROR: RRDtool executable not found, not executable or error in path '" . read_config_option('path_rrdtool') . "'. No output written to RRDfile.");
}
rrdtool_reset_language();
} else {
$i = 0;
while (true) {
if (fwrite($rrdtool_pipe, escape_command(" $command_line") . "\r\n") === false) {
cacti_log("ERROR: Detected RRDtool Crash on '$command_line'. Last command was '$last_command'");
/* close the invalid pipe */
rrd_close($rrdtool_pipe);
/* open a new rrdtool process */
$rrdtool_pipe = rrd_init();
if ($i > 4) {
cacti_log("FATAL: RRDtool Restart Attempts Exceeded. Giving up on '$command_line'.");
break;
} else {
$i++;
}
continue;
} else {
fflush($rrdtool_pipe);
break;
}
}
}
/* store the last command to provide rrdtool segfault diagnostics */
$last_command = $command_line;
if (!isset($fp)) {
return;
}
switch ($output_flag) {
case RRDTOOL_OUTPUT_STDOUT:
case RRDTOOL_OUTPUT_GRAPH_DATA:
$output = '';
while (!feof($fp)) {
$output .= fgets($fp, 4096);
}
if (isset($process)) {
fclose($fp);
proc_close($process);
}
rrdtool_trim_output($output);
return $output;
break;
case RRDTOOL_OUTPUT_STDERR:
case RRDTOOL_OUTPUT_RETURN_STDERR:
$output = fgets($fp, 1000000);
if (isset($process)) {
fclose($fp);
proc_close($process);
}
rrdtool_trim_output($output);
if (substr($output, 1, 3) == 'PNG') {
return 'OK';
}
if (substr($output, 0, 5) == '<?xml') {
return 'SVG/XML Output OK';
}
if ($output_flag == RRDTOOL_OUTPUT_RETURN_STDERR) {
return $output;
} else {
print $output;
}
break;
case RRDTOOL_OUTPUT_NULL:
default:
return;
break;
}
}
function rrdtool_trim_output(&$output) {
global $config;
global $user_time, $system_time, $real_time;
/* When using RRDtool with proc_open for long strings
* and using the '-' to handle standard in from inside
* the process, RRDtool automatically appends stderr
* to stdout for batch programs to parse the output
* string. So, therefore, we have to prune that
* output.
*/
if ($config['cacti_server_os'] == 'win32') {
$output = rtrim($output, "OK \n\r");
$okpos = strlen($output);
} else {
$okpos = strrpos($output, 'OK u:');
if ($okpos !== false) {
$stats = substr($output, $okpos);
$line = trim($stats, ' OK');
$parts = explode(' ', $line);
foreach ($parts as $line) {
$sparts = explode(':', $line);
switch($sparts[0]) {
case 'u':
$user_time = $sparts[1];
break;
case 's':
$system_time = $sparts[1];
break;
case 'r':
$real_time = $sparts[1];
break;
}
}
}
}
$output = substr($output, 0, $okpos);
}
function __rrd_proxy_execute($command_line, $log_to_stdout, $output_flag, $rrdp = '', $logopt = 'WEBLOG') {
global $config, $encryption;
static $last_command;
$end_of_packet = "_EOP_\r\n";
$end_of_sequence = "_EOT_\r\n";
if (!is_numeric($output_flag)) {
$output_flag = RRDTOOL_OUTPUT_STDOUT;
}
/* WIN32: before sending this command off to rrdtool, get rid
of all of the '\' characters. Unix does not care; win32 does.
Also make sure to replace all of the fancy "\"s at the end of the line,
but make sure not to get rid of the "\n"s that are supposed to be
in there (text format) */
$command_line = str_replace(array(CACTI_PATH_RRA, "\\\n"), array('.', ' '), $command_line);
/* output information to the log file if appropriate */
cacti_log('CACTI2RRDP: ' . read_config_option('path_rrdtool') . " $command_line", $log_to_stdout, $logopt, POLLER_VERBOSITY_DEBUG);
/* store the last command to provide rrdtool segfault diagnostics */
$last_command = $command_line;
$rrdp_auto_close = false;
if (!$rrdp) {
$rrdp = __rrd_proxy_init($logopt);
$rrdp_auto_close = true;
}
if (!$rrdp) {
cacti_log('CACTI2RRDP ERROR: Unable to connect to RRDtool proxy.', $log_to_stdout, $logopt, POLLER_VERBOSITY_LOW);
return null;
} else {
cacti_log('CACTI2RRDP NOTE: Connection to RRDtool proxy has already been established.', $log_to_stdout, $logopt, POLLER_VERBOSITY_DEBUG);
}
$rrdp_socket = $rrdp[0];
$rrdp_public_key = $rrdp[1];
if (strlen($command_line) >= 8192) {
$command_line = gzencode($command_line, 1);
}
socket_write($rrdp_socket, encrypt($command_line, $rrdp_public_key) . $end_of_sequence);
$input = '';
$output = '';
while (1) {
$recv = socket_read($rrdp_socket, 100000, PHP_BINARY_READ);
if ($recv === false) {
cacti_log('CACTI2RRDP ERROR: Data Transfer - Time-out while reading.', $log_to_stdout, $logopt, POLLER_VERBOSITY_LOW);
break;
}
if ($recv == '') {
/* session closed by Proxy */
if ($output) {
cacti_log('CACTI2RRDP ERROR: Session closed by Proxy.', $log_to_stdout, $logopt, POLLER_VERBOSITY_LOW);
}
break;
} else {
$input .= $recv;
if (strpos($input, $end_of_sequence) !== false) {
$input = str_replace($end_of_sequence, '', $input);
$transactions = explode($end_of_packet, $input);
foreach ($transactions as $transaction) {
$packet = $transaction;
$transaction = decrypt($transaction);
if ($transaction === false) {
cacti_log('CACTI2RRDP ERROR: Proxy message decryption failed: ###'. $packet . '###', $log_to_stdout, $logopt, POLLER_VERBOSITY_LOW);
break 2;
}
if (strpos($transaction, "\x1f\x8b") === 0) {
$transaction = gzdecode($transaction);
}
$output .= $transaction;
if (substr_count($output, 'OK u') || substr_count($output, 'ERROR:')) {
cacti_log('RRDP: ' . $output, $log_to_stdout, $logopt, POLLER_VERBOSITY_DEBUG);
break 2;
}
}
}
}
}
if ($rrdp_auto_close) {
__rrd_proxy_close($rrdp);
}
switch ($output_flag) {
case RRDTOOL_OUTPUT_NULL:
return;
case RRDTOOL_OUTPUT_STDOUT:
case RRDTOOL_OUTPUT_GRAPH_DATA:
return rtrim(substr($output, 0, strpos($output, 'OK u')));
break;
case RRDTOOL_OUTPUT_STDERR:
if (substr($output, 1, 3) == 'PNG') {
return 'OK';
}
if (substr($output, 0, 5) == 'GIF87') {
return 'OK';
}
if (substr($output, 0, 5) == '<?xml') {
return 'SVG/XML Output OK';
}
print $output;
break;
case RRDTOOL_OUTPUT_BOOLEAN:
return (substr_count($output, 'OK u')) ? true : false;
break;
}
}
function rrdtool_function_interface_speed($data_local) {
$ifHighSpeed = db_fetch_cell_prepared('SELECT field_value
FROM host_snmp_cache
WHERE host_id = ?
AND snmp_query_id = ?
AND snmp_index = ?
AND field_name="ifHighSpeed"',
array($data_local['host_id'], $data_local['snmp_query_id'], $data_local['snmp_index'])
);
$ifSpeed = db_fetch_cell_prepared('SELECT field_value
FROM host_snmp_cache
WHERE host_id = ?
AND snmp_query_id = ?
AND snmp_index = ?
AND field_name="ifSpeed"',
array($data_local['host_id'], $data_local['snmp_query_id'], $data_local['snmp_index'])
);
if (!empty($ifHighSpeed)) {
$speed = $ifHighSpeed * 1000000;
} elseif (!empty($ifSpeed)) {
$speed = $ifSpeed;
} else {
$speed = read_config_option('default_interface_speed');
if (empty($speed)) {
$speed = '10000000000000';
} else {
$speed = $speed * 1000000;
}
}
return $speed;
}
function rrdtool_function_create($local_data_id, $show_source, $rrdtool_pipe = null) {
global $config, $data_source_types, $consolidation_functions, $encryption;
include(CACTI_PATH_INCLUDE . '/global_arrays.php');
$data_source_path = get_data_source_path($local_data_id, true);
/* ok, if that passes lets check to make sure an rra does not already
exist, the last thing we want to do is overright data! */
if ($show_source != true) {
if (read_config_option('storage_location')) {
if (rrdtool_execute("file_exists $data_source_path", true, RRDTOOL_OUTPUT_BOOLEAN, $rrdtool_pipe, 'POLLER')) {
return -1;
}
} elseif (file_exists($data_source_path)) {
return -1;
}
}
/* the first thing we must do is make sure there is at least one
rra associated with this data source... *
UPDATE: As of version 0.6.6, we are splitting this up into two
SQL strings because of the multiple DS per RRD support. This is
not a big deal however since this function gets called once per
data source */
$rras = db_fetch_assoc_prepared('SELECT dtd.rrd_step, dsp.x_files_factor,
dspr.steps, dspr.rows, dspc.consolidation_function_id,
(dspr.rows*dspr.steps) AS rra_order
FROM data_template_data AS dtd
LEFT JOIN data_source_profiles AS dsp
ON dtd.data_source_profile_id=dsp.id
LEFT JOIN data_source_profiles_rra AS dspr
ON dsp.id=dspr.data_source_profile_id
LEFT JOIN data_source_profiles_cf AS dspc
ON dsp.id=dspc.data_source_profile_id
WHERE dtd.local_data_id = ?
AND (dspr.steps IS NOT NULL OR dspr.rows IS NOT NULL)
ORDER BY dspc.consolidation_function_id, rra_order',
array($local_data_id)
);
/* if we find that this DS has no RRA associated; get out */
if (cacti_sizeof($rras) <= 0) {
cacti_log("ERROR: There are no RRA's assigned to local_data_id: $local_data_id.");
return false;
}
/* create the "--step" line */
$create_ds = RRD_NL . '--start 0 --step '. $rras[0]['rrd_step'] . ' ' . RRD_NL;
/**
* We have to check for Non-Templated Data Source first as they may not include
* a graph. So, for that case, we need the RRDfile to include all data sources
*/
$data_template_id = db_fetch_cell_prepared('SELECT data_template_id
FROM data_local
WHERE id = ?',
array($local_data_id));
if ($data_template_id > 0) {
$data_sources = db_fetch_assoc_prepared('SELECT DISTINCT dtr.id, dtr.data_source_name, dtr.rrd_heartbeat,
dtr.rrd_minimum, dtr.rrd_maximum, dtr.data_source_type_id
FROM data_template_rrd AS dtr
INNER JOIN graph_templates_item AS gti
ON dtr.id = gti.task_item_id
WHERE local_data_id = ?
ORDER BY local_data_template_rrd_id',
array($local_data_id)
);
} else {
$data_sources = db_fetch_assoc_prepared('SELECT DISTINCT dtr.id, dtr.data_source_name, dtr.rrd_heartbeat,
dtr.rrd_minimum, dtr.rrd_maximum, dtr.data_source_type_id
FROM data_template_rrd AS dtr
WHERE local_data_id = ?
ORDER BY local_data_template_rrd_id',
array($local_data_id)
);
}
/**
* ONLY make a new DS entry if:
*
* - There are multiple data sources and this item is not the main one.
* - There are only one data source (then use it)
*/
if (cacti_sizeof($data_sources)) {
$data_local = db_fetch_row_prepared('SELECT host_id,
snmp_query_id, snmp_index
FROM data_local
WHERE id = ?',
array($local_data_id)
);
$speed = rrdtool_function_interface_speed($data_local);
foreach ($data_sources as $data_source) {
/* use the cacti ds name by default or the user defined one, if entered */
$data_source_name = get_data_source_item_name($data_source['id']);
// Trim the data source maximum
$data_source['rrd_maximum'] = trim($data_source['rrd_maximum']);
if ($data_source['rrd_maximum'] == 'U') {
/* in case no maximum is given, use "Undef" value */
$data_source['rrd_maximum'] = 'U';
} elseif (strpos($data_source['rrd_maximum'], '|query_') !== false) {
/* in case a query variable is given, evaluate it */
if ($data_source['rrd_maximum'] == '|query_ifSpeed|' || $data_source['rrd_maximum'] == '|query_ifHighSpeed|') {
$data_source['rrd_maximum'] = $speed;
} else {
$data_source['rrd_maximum'] = substitute_snmp_query_data($data_source['rrd_maximum'], $data_local['host_id'], $data_local['snmp_query_id'], $data_local['snmp_index']);
}
} elseif ($data_source['rrd_maximum'] != 'U' && (int)$data_source['rrd_maximum'] <= (int)$data_source['rrd_minimum']) {
/* max > min required, but take care of an "Undef" value */
if ($data_source['data_source_type_id'] == 1 || $data_source['data_source_type_id'] == 4) {
$data_source['rrd_maximum'] = 'U';
} else {
$data_source['rrd_maximum'] = (int)$data_source['rrd_minimum'] + 1;
}
}
/* min==max==0 won't work with rrdtool */
if ($data_source['rrd_minimum'] == 0 && $data_source['rrd_maximum'] == 0) {
$data_source['rrd_maximum'] = 'U';
}
$create_ds .= "DS:$data_source_name:" . $data_source_types[$data_source['data_source_type_id']] . ':' . $data_source['rrd_heartbeat'] . ':' . $data_source['rrd_minimum'] . ':' . $data_source['rrd_maximum'] . RRD_NL;
}
}
$create_rra = '';
/* loop through each available RRA for this DS */
foreach ($rras as $rra) {
$create_rra .= 'RRA:' . $consolidation_functions[$rra['consolidation_function_id']] . ':' . $rra['x_files_factor'] . ':' . $rra['steps'] . ':' . $rra['rows'] . RRD_NL;
}
if ($config['cacti_server_os'] != 'win32') {
$owner_id = fileowner(CACTI_PATH_RRA);
$group_id = filegroup(CACTI_PATH_RRA);
}
/**
* check for structured path configuration, if in place verify directory
* exists and if not create it.
*/
if (read_config_option('extended_paths') == 'on') {
if (read_config_option('storage_location')) {
if (rrdtool_execute('is_dir ' . dirname($data_source_path), true, RRDTOOL_OUTPUT_BOOLEAN, $rrdtool_pipe, 'POLLER') === false) {
if (rrdtool_execute('mkdir ' . dirname($data_source_path), true, RRDTOOL_OUTPUT_BOOLEAN, $rrdtool_pipe, 'POLLER') === false) {
cacti_log("ERROR: Unable to create directory '" . dirname($data_source_path) . "'", false);
}
}
} elseif (!is_dir(dirname($data_source_path))) {
if ($config['is_web'] == false || is_writable(CACTI_PATH_RRA)) {
if (mkdir(dirname($data_source_path), 0775, true)) {
if ($config['cacti_server_os'] != 'win32' && posix_getuid() == 0) {
$success = true;
$paths = explode('/', str_replace(CACTI_PATH_RRA, '/', dirname($data_source_path)));
$spath = '';
foreach ($paths as $path) {
if ($path == '') {
continue;
}
$spath .= '/' . $path;
$powner_id = fileowner(CACTI_PATH_RRA . $spath);
$pgroup_id = fileowner(CACTI_PATH_RRA . $spath);
if ($powner_id != $owner_id) {
$success = chown(CACTI_PATH_RRA . $spath, $owner_id);
}
if ($pgroup_id != $group_id && $success) {
$success = chgrp(CACTI_PATH_RRA . $spath, $group_id);
}
if (!$success) {
cacti_log("ERROR: Unable to set directory permissions for '" . CACTI_PATH_RRA . $spath . "'", false);
break;
}
}
}
} else {
cacti_log("ERROR: Unable to create directory '" . dirname($data_source_path) . "'", false);
}
} else {
cacti_log("WARNING: Poller has not created structured path '" . dirname($data_source_path) . "' yet.", false);
}
}
}
if ($show_source == true) {
return read_config_option('path_rrdtool') . ' create' . RRD_NL . "$data_source_path$create_ds$create_rra";
} else {
$success = rrdtool_execute("create $data_source_path $create_ds$create_rra", true, RRDTOOL_OUTPUT_STDOUT, $rrdtool_pipe, 'POLLER');
if ($config['cacti_server_os'] != 'win32' && posix_getuid() == 0) {
shell_exec("chown $owner_id:$group_id $data_source_path");
}
return $success;
}
}
function rrdtool_function_update($update_cache_array, $rrdtool_pipe = null) {
/* lets count the number of rrd files processed */
$rrds_processed = 0;
foreach ($update_cache_array as $rrd_path => $rrd_fields) {
$create_rrd_file = false;
if (is_array($rrd_fields['times']) && cacti_sizeof($rrd_fields['times'])) {
/* create the rrd if one does not already exist */
if (read_config_option('storage_location') > 0) {
$file_exists = rrdtool_execute("file_exists $rrd_path" , true, RRDTOOL_OUTPUT_BOOLEAN, $rrdtool_pipe, 'POLLER');
} else {
$file_exists = file_exists($rrd_path);
}
ksort($rrd_fields['times']);
if ($file_exists === false) {
$times = array_keys($rrd_fields['times']);
rrdtool_function_create($rrd_fields['local_data_id'], false, $rrdtool_pipe);
$create_rrd_file = true;
}
if (isset($rrd_fields['data_template_id'])) {
$data_template_id = $rrd_fields['data_template_id'];
} else {
$data_template_id = db_fetch_cell_prepared('SELECT data_template_id
FROM data_local
WHERE id = ?',
array($rrd_fields['local_data_id']));
}
if ($data_template_id > 0) {
$unused_data_source_names = array_rekey(
db_fetch_assoc_prepared('SELECT DISTINCT dtr.data_source_name, dtr.data_source_name
FROM data_template_rrd AS dtr
LEFT JOIN graph_templates_item AS gti
ON dtr.id = gti.task_item_id
WHERE dtr.local_data_id = ?
AND gti.task_item_id IS NULL',
array($rrd_fields['local_data_id'])),
'data_source_name', 'data_source_name'
);
} else {
$unused_data_source_names = array();
}
foreach ($rrd_fields['times'] as $update_time => $field_array) {
if (empty($update_time)) {
/* default the rrdupdate time to now */
$rrd_update_values = 'N:';
} else {
$rrd_update_values = $update_time . ':';
}
$rrd_update_template = '';
foreach ($field_array as $field_name => $value) {
if ($rrd_update_template != '') {
$rrd_update_template .= ':';
$rrd_update_values .= ':';
}
$rrd_update_template .= $field_name;
/* if we have "invalid data", give rrdtool an Unknown (U) */
if (!isset($value) || !is_numeric($value)) {
$value = 'U';
}
$rrd_update_values .= $value;
}
if (cacti_version_compare(get_rrdtool_version(),'1.5','>=')) {
$update_options='--skip-past-updates';
} else {
$update_options='';
}
rrdtool_execute("update $rrd_path $update_options --template $rrd_update_template $rrd_update_values", true, RRDTOOL_OUTPUT_STDOUT, $rrdtool_pipe, 'POLLER');
$rrds_processed++;
}
}
}
return $rrds_processed;
}
function rrdtool_function_tune($rrd_tune_array) {
global $config, $data_source_types;
include(CACTI_PATH_INCLUDE . '/global_arrays.php');
$data_source_name = get_data_source_item_name($rrd_tune_array['data_source_id']);
$data_source_type = $data_source_types[$rrd_tune_array['data-source-type']];
$data_source_path = get_data_source_path($rrd_tune_array['data_source_id'], true);
$rrd_tune = '';
if ($rrd_tune_array['heartbeat'] != '') {
$rrd_tune .= " --heartbeat $data_source_name:" . $rrd_tune_array['heartbeat'];
}
if ($rrd_tune_array['minimum'] != '') {
$rrd_tune .= " --minimum $data_source_name:" . $rrd_tune_array['minimum'];
}
if ($rrd_tune_array['maximum'] != '') {
$rrd_tune .= " --maximum $data_source_name:" . $rrd_tune_array['maximum'];
}
if ($rrd_tune_array['data-source-type'] != '') {
$rrd_tune .= " --data-source-type $data_source_name:" . $data_source_type;
}
if ($rrd_tune_array['data-source-rename'] != '') {
$rrd_tune .= " --data-source-rename $data_source_name:" . $rrd_tune_array['data-source-rename'];
}
if ($rrd_tune != '') {
if (file_exists($data_source_path) == true) {
if (is_file(read_config_option('path_rrdtool')) && is_executable(read_config_option('path_rrdtool'))) {
$fp = popen(read_config_option('path_rrdtool') . " tune $data_source_path $rrd_tune", 'r');
pclose($fp);
cacti_log('CACTI2RRD: ' . read_config_option('path_rrdtool') . " tune $data_source_path $rrd_tune", false, 'WEBLOG', POLLER_VERBOSITY_DEBUG);
} else {
cacti_log("ERROR: RRDtool executable not found, not executable or error in path '" . read_config_option('path_rrdtool') . "'. No output written to RRDfile.");
}
}
}