Files
cacti/lib/functions.php
T
Jimmy Conner efb572d79f Patch for SSL/TLS in PHPMailer
also fix the bullet_arrow images

git-svn-id: svn+ssh://repo.cacti.net/var/data/svnroot/cacti/cacti/branches/0.8.8@7616 860744bd-22fc-0310-8c96-e9fe5004b5ca
2014-12-27 05:25:44 +00:00

2649 lines
100 KiB
PHP

<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2014 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/ |
+-------------------------------------------------------------------------+
*/
/* title_trim - takes a string of text, truncates it to $max_length and appends
three periods onto the end
@arg $text - the string to evaluate
@arg $max_length - the maximum number of characters the string can contain
before it is truncated
@returns - the truncated string if len($text) is greater than $max_length, else
the original string */
function title_trim($text, $max_length) {
if (strlen($text) > $max_length) {
return substr($text, 0, $max_length) . "...";
}else{
return $text;
}
}
/* read_default_graph_config_option - finds the default value of a graph configuration setting
@arg $config_name - the name of the configuration setting as specified $settings array
in 'include/global_settings.php'
@returns - the default value of the configuration option */
function read_default_graph_config_option($config_name) {
global $config, $settings_graphs;
reset($settings_graphs);
while (list($tab_name, $tab_array) = each($settings_graphs)) {
if ((isset($tab_array[$config_name])) && (isset($tab_array[$config_name]["default"]))) {
return $tab_array[$config_name]["default"];
}else{
while (list($field_name, $field_array) = each($tab_array)) {
if ((isset($field_array["items"])) && (isset($field_array["items"][$config_name])) && (isset($field_array["items"][$config_name]["default"]))) {
return $field_array["items"][$config_name]["default"];
}
}
}
}
}
/* read_graph_config_option - finds the current value of a graph configuration setting
@arg $config_name - the name of the configuration setting as specified $settings_graphs array
in 'include/global_settings.php'
@returns - the current value of the graph configuration option */
function read_graph_config_option($config_name, $force = FALSE) {
global $config;
/* users must have cacti user auth turned on to use this, or the guest account must be active */
if (isset($_SESSION["sess_user_id"])) {
$effective_uid = $_SESSION["sess_user_id"];
}else if (isset($config["config_options_array"]["export_user_id"])) {
$effective_uid = $config["config_options_array"]["export_user_id"];
}else if ((read_config_option("auth_method") == 0)) {
/* first attempt to get the db setting for guest */
$effective_uid = db_fetch_cell("SELECT id FROM user_auth WHERE username='" . read_config_option("guest_user") . "'");
if (strlen($effective_uid) == 0) {
$effective_uid = 0;
}
$db_setting = db_fetch_row("SELECT value FROM settings_graphs WHERE name='$config_name' AND user_id=" . $effective_uid);
if (isset($db_setting["value"])) {
return $db_setting["value"];
}else{
return read_default_graph_config_option($config_name);
}
}else{
$effective_uid = 0;
}
if (!$force) {
if (isset($_SESSION["sess_graph_config_array"])) {
$graph_config_array = $_SESSION["sess_graph_config_array"];
}else if (isset($config["config_options_array"]["export_user_id"])) {
if (isset($config["config_graph_settings_array"])) {
$graph_config_array = $config["config_graph_settings_array"];
}
}
}
if (!isset($graph_config_array[$config_name])) {
$db_setting = db_fetch_row("SELECT value FROM settings_graphs WHERE name='$config_name' AND user_id=" . $effective_uid);
if (isset($db_setting["value"])) {
$graph_config_array[$config_name] = $db_setting["value"];
}else{
$graph_config_array[$config_name] = read_default_graph_config_option($config_name);
}
if (isset($_SESSION)) {
$_SESSION["sess_graph_config_array"] = $graph_config_array;
}else{
$config["config_graph_settings_array"] = $graph_config_array;
}
}
return $graph_config_array[$config_name];
}
/* config_value_exists - determines if a value exists for the current user/setting specified
@arg $config_name - the name of the configuration setting as specified $settings array
in 'include/global_settings.php'
@returns (bool) - true if a value exists, false if a value does not exist */
function config_value_exists($config_name) {
global $database_default;
return sizeof(db_fetch_assoc("SELECT value FROM `$database_default`.`settings` WHERE name='$config_name'"));
}
/* graph_config_value_exists - determines if a value exists for the current user/setting specified
@arg $config_name - the name of the configuration setting as specified $settings_graphs array
in 'include/global_settings.php'
@arg $user_id - the id of the user to check the configuration value for
@returns (bool) - true if a value exists, false if a value does not exist */
function graph_config_value_exists($config_name, $user_id) {
return sizeof(db_fetch_assoc("SELECT value FROM settings_graphs WHERE name='$config_name' AND user_id='$user_id'"));
}
/* read_default_config_option - finds the default value of a Cacti configuration setting
@arg $config_name - the name of the configuration setting as specified $settings array
in 'include/global_settings.php'
@returns - the default value of the configuration option */
function read_default_config_option($config_name) {
global $config, $settings;
if (is_array($settings)) {
reset($settings);
while (list($tab_name, $tab_array) = each($settings)) {
if ((isset($tab_array[$config_name])) && (isset($tab_array[$config_name]["default"]))) {
return $tab_array[$config_name]["default"];
}else{
while (list($field_name, $field_array) = each($tab_array)) {
if ((isset($field_array["items"])) && (isset($field_array["items"][$config_name])) && (isset($field_array["items"][$config_name]["default"]))) {
return $field_array["items"][$config_name]["default"];
}
}
}
}
}
}
/* set_config_option - sets/updates a cacti config option with the given value.
@arg $config_name - the name of the configuration setting as specified $settings array
@arg $value - the values to be saved
@returns - void */
function set_config_option($config_name, $value) {
global $database_default;
db_execute("REPLACE INTO `$database_default`.`settings` SET name='$config_name', value='$value'");
}
/* read_config_option - finds the current value of a Cacti configuration setting
@arg $config_name - the name of the configuration setting as specified $settings array
in 'include/global_settings.php'
@returns - the current value of the configuration option */
function read_config_option($config_name, $force = FALSE) {
global $config, $database_default;
if (isset($_SESSION["sess_config_array"])) {
$config_array = $_SESSION["sess_config_array"];
}else if (isset($config["config_options_array"])) {
$config_array = $config["config_options_array"];
}
if ((!isset($config_array[$config_name])) || ($force)) {
$db_setting = db_fetch_row("SELECT value FROM `$database_default`.`settings` WHERE name='$config_name'", FALSE);
if (isset($db_setting["value"])) {
$config_array[$config_name] = $db_setting["value"];
}else{
$config_array[$config_name] = read_default_config_option($config_name);
}
if (isset($_SESSION)) {
$_SESSION["sess_config_array"] = $config_array;
}else{
$config["config_options_array"] = $config_array;
}
}
return $config_array[$config_name];
}
/* form_input_validate - validates the value of a form field and Takes the appropriate action if the input
is not valid
@arg $field_value - the value of the form field
@arg $field_name - the name of the $_POST field as specified in the HTML
@arg $regexp_match - (optionally) enter a regular expression to match the value against
@arg $allow_nulls - (bool) whether to allow an empty string as a value or not
@arg $custom_message - (int) the ID of the message to raise upon an error which is defined in the
$messages array in 'include/global_arrays.php'
@returns - the original $field_value */
function form_input_validate($field_value, $field_name, $regexp_match, $allow_nulls, $custom_message = 3) {
global $messages;
/* write current values to the "field_values" array so we can retain them */
$_SESSION["sess_field_values"][$field_name] = $field_value;
if (($allow_nulls == true) && ($field_value == "")) {
return $field_value;
}
/* php 4.2+ complains about empty regexps */
if (empty($regexp_match)) { $regexp_match = ".*"; }
if ((!preg_match('/' . $regexp_match . '/', $field_value) || (($allow_nulls == false) && ($field_value === "")))) {
raise_message($custom_message);
cacti_log("Validation Error on field '".$field_name."', value '".$field_value."': " . $messages[$custom_message]["message"], false);
$_SESSION["sess_error_fields"][$field_name] = $field_name;
}else{
$_SESSION["sess_field_values"][$field_name] = $field_value;
}
return $field_value;
}
/* check_changed - determines if a request variable has changed between page loads
@returns - (bool) true if the value changed between loads */
function check_changed($request, $session) {
if ((isset($_REQUEST[$request])) && (isset($_SESSION[$session]))) {
if ($_REQUEST[$request] != $_SESSION[$session]) {
return 1;
}
}
}
/* is_error_message - finds whether an error message has been raised and has not been outputted to the
user
@returns - (bool) whether the messages array contains an error or not */
function is_error_message() {
global $config, $messages;
if (isset($_SESSION["sess_messages"])) {
if (is_array($_SESSION["sess_messages"])) {
foreach (array_keys($_SESSION["sess_messages"]) as $current_message_id) {
if ($messages[$current_message_id]["type"] == "error") { return true; }
}
}
}
return false;
}
/* is_valid_email - determines if an e-mail address passed is either a valid
email address or distribution list.
@arg $email - either email address or comma/semicolon delimited list of e-mails
@returns - (bool) if true the email address is syntactically correct */
function is_valid_email($email) {
/* check for distribution list */
$comma = $semic = false;
if (substr_count($email, ",")) {
$comma = true;
$delim = ",";
}
if (substr_count($email, ";")) {
$semic = true;
$delim = ";";
}
if ($semic && $comma) {
return false;
}elseif ($semic || $comma) {
$members = explode($delim, $email);
foreach ($members as $member) {
if (preg_match("/^ *[0-9a-zA-Z]+[-_\.0-9a-zA-Z]*@([0-9a-zA-Z]+[-\.0-9a-zA-Z]+)+\.[a-zA-Z]+ *$/", $member)) {
continue;
}else{
return false;
}
}
return true;
}else{
return preg_match("/^ *[0-9a-zA-Z]+[-_\.0-9a-zA-Z]*@([0-9a-zA-Z]+[-\.0-9a-zA-Z]+)+\.[a-zA-Z]+ *$/", $email);
}
}
/* raise_message - mark a message to be displayed to the user once display_output_messages() is called
@arg $message_id - the ID of the message to raise as defined in $messages in 'include/global_arrays.php' */
function raise_message($message_id) {
$_SESSION["sess_messages"][$message_id] = $message_id;
}
/* display_output_messages - displays all of the cached messages from the raise_message() function and clears
the message cache */
function display_output_messages() {
global $config, $messages;
if (isset($_SESSION["sess_messages"])) {
$error_message = is_error_message();
if (is_array($_SESSION["sess_messages"])) {
foreach (array_keys($_SESSION["sess_messages"]) as $current_message_id) {
if (isset($messages[$current_message_id]["message"])) {
eval ('$message = "' . $messages[$current_message_id]["message"] . '";');
switch ($messages[$current_message_id]["type"]) {
case 'info':
if ($error_message == false) {
print "<div id='message' class='textInfo messageBox'>";
print "$message";
print "</div>";
/* we don't need these if there are no error messages */
kill_session_var("sess_field_values");
}
break;
case 'error':
print "<div id='message' class='textError messageBox'>";
print "Error: $message";
print "</div>";
break;
}
}else{
cacti_log("ERROR: Cacti Error Message Id '$current_message_id' Not Defined", false, "WEBUI");
}
}
}else{
display_custom_error_message($_SESSION["sess_messages"]);
}
}
kill_session_var("sess_messages");
}
/* display_custom_error_message - displays a custom error message to the browser that looks like
the pre-defined error messages
@arg $text - the actual text of the error message to display */
function display_custom_error_message($message) {
print "<div id='message' class='textError messageBox'>";
print "Error: $message";
print "</div>";
}
/* clear_messages - clears the message cache */
function clear_messages() {
kill_session_var("sess_messages");
}
/* kill_session_var - kills a session variable using unset() */
function kill_session_var($var_name) {
/* register_global = on: reset local settings cache so the user sees the new settings */
unset($_SESSION[$var_name]);
/* register_global = off: reset local settings cache so the user sees the new settings */
/* session_unregister is deprecated in PHP 5.3.0, unset is sufficient */
if (version_compare(PHP_VERSION, '5.3.0', '<')) {
session_unregister($var_name);
} else {
unset($var_name);
}
}
/* array_rekey - changes an array in the form:
'$arr[0] = array("id" => 23, "name" => "blah")'
to the form
'$arr = array(23 => "blah")'
@arg $array - (array) the original array to manipulate
@arg $key - the name of the key
@arg $key_value - the name of the key value
@returns - the modified array */
function array_rekey($array, $key, $key_value) {
$ret_array = array();
if (sizeof($array) > 0) {
foreach ($array as $item) {
$item_key = $item[$key];
if (is_array($key_value)) {
for ($i=0; $i<count($key_value); $i++) {
$ret_array[$item_key]{$key_value[$i]} = $item{$key_value[$i]};
}
}else{
$ret_array[$item_key] = $item[$key_value];
}
}
}
return $ret_array;
}
/* timer start function */
function timer_start() {
global $timer_start;
list($micro,$seconds) = explode(" ", microtime());
$timer_start = $seconds + $micro;
}
/* timer end/step function */
function timer_end($message = "default") {
global $timer_start;
list($micro,$seconds) = explode(" ", microtime());
$timer_end = $seconds + $micro;
echo "TIMER: '$message' Time:'" . ($timer_end - $timer_start) . "' seconds\n";
$timer_start = $timer_end;
}
/* strip_newlines - removes \n\r from lines
@arg $string - the string to strip
*/
function strip_newlines($string) {
return strtr(strtr($string, "\n", "\0"), "\r","\0");
}
/* cacti_log - logs a string to Cacti's log file or optionally to the browser
@arg $string - the string to append to the log file
@arg $output - (bool) whether to output the log line to the browser using print() or not
@arg $environ - (string) tell's from where the script was called from */
function cacti_log($string, $output = false, $environ = "CMDPHP") {
global $config;
/* fill in the current date for printing in the log */
$date = date("m/d/Y h:i:s A");
/* determine how to log data */
$logdestination = read_config_option("log_destination");
$logfile = read_config_option("path_cactilog");
/* format the message */
if (($environ != "SYSTEM") && ($environ != "EXPORT") && ($environ != "RECACHE") && ($environ != "AUTH")) {
$message = "$date - " . $environ . ": Poller[0] " . $string . "\n";
}else {
$message = "$date - " . $environ . " " . $string . "\n";
}
/* Log to Logfile */
if ((($logdestination == 1) || ($logdestination == 2)) && (read_config_option("log_verbosity") != POLLER_VERBOSITY_NONE)) {
if ($logfile == "") {
$logfile = $config["base_path"] . "/log/cacti.log";
}
/* echo the data to the log (append) */
$fp = @fopen($logfile, "a");
if ($fp) {
@fwrite($fp, $message);
fclose($fp);
}
}
/* Log to Syslog/Eventlog */
/* Syslog is currently Unstable in Win32 */
if (($logdestination == 2) || ($logdestination == 3)) {
$log_type = "";
if (substr_count($string,"ERROR:"))
$log_type = "err";
else if (substr_count($string,"WARNING:"))
$log_type = "warn";
else if (substr_count($string,"STATS:"))
$log_type = "stat";
else if (substr_count($string,"NOTICE:"))
$log_type = "note";
if (strlen($log_type)) {
if ($config["cacti_server_os"] == "win32")
openlog("Cacti", LOG_NDELAY | LOG_PID, LOG_USER);
else
openlog("Cacti", LOG_NDELAY | LOG_PID, LOG_SYSLOG);
if (($log_type == "err") && (read_config_option("log_perror"))) {
syslog(LOG_CRIT, $environ . ": " . $string);
}
if (($log_type == "warn") && (read_config_option("log_pwarn"))) {
syslog(LOG_WARNING, $environ . ": " . $string);
}
if ((($log_type == "stat") || ($log_type == "note")) && (read_config_option("log_pstats"))) {
syslog(LOG_INFO, $environ . ": " . $string);
}
closelog();
}
}
/* print output to standard out if required */
if (($output == true) && (isset($_SERVER["argv"][0]))){
print $message;
}
}
/* tail_file - Emulates the tail function with PHP native functions.
It is used in 0.8.6 to speed the viewing of the Cacti log file, which
can be problematic in the 0.8.6 branch.
@arg $file_name - (char constant) the name of the file to tail
$line_cnt - (int constant) the number of lines to count
$message_type - (int constant) the type of message to return
$filter - (char) the filtering expression to search for
$line_size - (int constant) the average line size to use estimate bytes
to seek up from EOF. Defaults to 256 bytes */
function tail_file($file_name, $number_of_lines, $message_type = -1, $filter = "", $line_size = 256) {
$file_array = array();
if (file_exists($file_name) && is_readable($file_name)) {
$fp = fopen($file_name, "r");
/* reset back the number of bytes */
if ($number_of_lines > 0) {
$total_bytes = fseek($fp, -($number_of_lines * $line_size), SEEK_END);
}
/* load up the lines into an array */
$i = 0;
while (1) {
$line = fgets($fp);
$display = true;
/* determine if we are to display the line */
switch ($message_type) {
case -1: /* all */
$display = true;
break;
case 5: /* sql calls */
if (substr_count($line, " SQL ")) {
$display=true;
}else{
$display=false;
}
break;
case 1: /* stats */
if (substr_count($line, "STATS")) {
$display=true;
}else{
$display=false;
}
break;
case 2: /* warnings */
if (substr_count($line, "WARN")) {
$display=true;
}else{
$display=false;
}
break;
case 3: /* errors */
if (substr_count($line, "ERROR")) {
$display=true;
}else{
$display=false;
}
break;
case 4: /* debug */
if (substr_count($line, "DEBUG")) {
$display=true;
}else{
$display=false;
}
if (substr_count($line, " SQL ")) {
$display=false;
}
break;
default: /* all other lines */
$display=true;
break;
}
/* match any lines that match the search string */
if (strlen($filter)) {
if ((substr_count(strtolower($line), strtolower($filter))) ||
(@preg_match($filter, $line))) {
$display=true;
}else{
$display=false;
}
}
if (feof($fp)) {
break;
}else if ($display) {
$file_array[$i] = $line;
$i++;
}
}
$file_array = array_slice($file_array, -$number_of_lines, count($file_array));
fclose($fp);
}elseif (! file_exists($file_name)) {
touch($file_name);
}else{
echo "Error $file_name is not readable";
}
return $file_array;
}
/* update_host_status - updates the host table with informaton about it's status.
It will also output to the appropriate log file when an event occurs.
@arg $status - (int constant) the status of the host (Up/Down)
$host_id - (int) the host ID for the results
$hosts - (array) a memory resident host table for speed
$ping - (class array) results of the ping command */
function update_host_status($status, $host_id, &$hosts, &$ping, $ping_availability, $print_data_to_stdout) {
$issue_log_message = false;
$ping_failure_count = read_config_option("ping_failure_count");
$ping_recovery_count = read_config_option("ping_recovery_count");
/* initialize fail and recovery dates correctly */
if ($hosts[$host_id]["status_fail_date"] == ""){
$hosts[$host_id]["status_fail_date"] = '0000-00-00 00:00:00';
}
if ($hosts[$host_id]["status_rec_date"] == ""){
$hosts[$host_id]["status_rec_date"] = '0000-00-00 00:00:00';
}
if ($status == HOST_DOWN) {
/* update total polls, failed polls and availability */
$hosts[$host_id]["failed_polls"]++;
$hosts[$host_id]["total_polls"]++;
$hosts[$host_id]["availability"] = 100 * ($hosts[$host_id]["total_polls"] - $hosts[$host_id]["failed_polls"]) / $hosts[$host_id]["total_polls"];
/* determine the error message to display */
if (($ping_availability == AVAIL_SNMP_AND_PING) || ($ping_availability == AVAIL_SNMP_OR_PING)) {
if (($hosts[$host_id]["snmp_community"] == "") && ($hosts[$host_id]["snmp_version"] != 3)) {
/* snmp version 1/2 without community string assume SNMP test to be successful
due to backward compatibility issues */
$hosts[$host_id]["status_last_error"] = $ping->ping_response;
}else {
$hosts[$host_id]["status_last_error"] = $ping->snmp_response . ", " . $ping->ping_response;
}
}elseif ($ping_availability == AVAIL_SNMP) {
if (($hosts[$host_id]["snmp_community"] == "") && ($hosts[$host_id]["snmp_version"] != 3)) {
$hosts[$host_id]["status_last_error"] = "Device does not require SNMP";
}else {
$hosts[$host_id]["status_last_error"] = $ping->snmp_response;
}
}else {
$hosts[$host_id]["status_last_error"] = $ping->ping_response;
}
/* determine if to send an alert and update remainder of statistics */
if ($hosts[$host_id]["status"] == HOST_UP) {
/* increment the event failure count */
$hosts[$host_id]["status_event_count"]++;
/* if it's time to issue an error message, indicate so */
if ($hosts[$host_id]["status_event_count"] >= $ping_failure_count) {
/* host is now down, flag it that way */
$hosts[$host_id]["status"] = HOST_DOWN;
$issue_log_message = true;
/* update the failure date only if the failure count is 1 */
if ($ping_failure_count == 1) {
$hosts[$host_id]["status_fail_date"] = date("Y-m-d H:i:s");
}
/* host is down, but not ready to issue log message */
} else {
/* host down for the first time, set event date */
if ($hosts[$host_id]["status_event_count"] == 1) {
$hosts[$host_id]["status_fail_date"] = date("Y-m-d H:i:s");
}
}
/* host is recovering, put back in failed state */
} elseif ($hosts[$host_id]["status"] == HOST_RECOVERING) {
$hosts[$host_id]["status_event_count"] = 1;
$hosts[$host_id]["status"] = HOST_DOWN;
/* host was unknown and now is down */
} elseif ($hosts[$host_id]["status"] == HOST_UNKNOWN) {
$hosts[$host_id]["status"] = HOST_DOWN;
$hosts[$host_id]["status_event_count"] = 0;
} else {
$hosts[$host_id]["status_event_count"]++;
}
/* host is up!! */
} else {
/* update total polls and availability */
$hosts[$host_id]["total_polls"]++;
$hosts[$host_id]["availability"] = 100 * ($hosts[$host_id]["total_polls"] - $hosts[$host_id]["failed_polls"]) / $hosts[$host_id]["total_polls"];
if ((($ping_availability == AVAIL_SNMP_AND_PING) ||
($ping_availability == AVAIL_SNMP_OR_PING) ||
($ping_availability == AVAIL_SNMP)) &&
(!is_numeric($ping->snmp_status))) {
$ping->snmp_status = 0.000;
}
if ((($ping_availability == AVAIL_SNMP_AND_PING) ||
($ping_availability == AVAIL_SNMP_OR_PING) ||
($ping_availability == AVAIL_PING)) &&
(!is_numeric($ping->ping_status))) {
$ping->ping_status = 0.000;
}
/* determine the ping statistic to set and do so */
if (($ping_availability == AVAIL_SNMP_AND_PING) ||
($ping_availability == AVAIL_SNMP_OR_PING)) {
if (($hosts[$host_id]["snmp_community"] == "") && ($hosts[$host_id]["snmp_version"] != 3)) {
$ping_time = 0.000;
}else {
/* calculate the average of the two times */
$ping_time = ($ping->snmp_status + $ping->ping_status) / 2;
}
}elseif ($ping_availability == AVAIL_SNMP) {
if (($hosts[$host_id]["snmp_community"] == "") && ($hosts[$host_id]["snmp_version"] != 3)) {
$ping_time = 0.000;
}else {
$ping_time = $ping->snmp_status;
}
}elseif ($ping_availability == AVAIL_NONE) {
$ping_time = 0.000;
}else{
$ping_time = $ping->ping_status;
}
/* update times as required */
$hosts[$host_id]["cur_time"] = $ping_time;
/* maximum time */
if ($ping_time > $hosts[$host_id]["max_time"])
$hosts[$host_id]["max_time"] = $ping_time;
/* minimum time */
if ($ping_time < $hosts[$host_id]["min_time"])
$hosts[$host_id]["min_time"] = $ping_time;
/* average time */
$hosts[$host_id]["avg_time"] = (($hosts[$host_id]["total_polls"]-1-$hosts[$host_id]["failed_polls"])
* $hosts[$host_id]["avg_time"] + $ping_time) / ($hosts[$host_id]["total_polls"]-$hosts[$host_id]["failed_polls"]);
/* the host was down, now it's recovering */
if (($hosts[$host_id]["status"] == HOST_DOWN) || ($hosts[$host_id]["status"] == HOST_RECOVERING )) {
/* just up, change to recovering */
if ($hosts[$host_id]["status"] == HOST_DOWN) {
$hosts[$host_id]["status"] = HOST_RECOVERING;
$hosts[$host_id]["status_event_count"] = 1;
} else {
$hosts[$host_id]["status_event_count"]++;
}
/* if it's time to issue a recovery message, indicate so */
if ($hosts[$host_id]["status_event_count"] >= $ping_recovery_count) {
/* host is up, flag it that way */
$hosts[$host_id]["status"] = HOST_UP;
$issue_log_message = true;
/* update the recovery date only if the recovery count is 1 */
if ($ping_recovery_count == 1) {
$hosts[$host_id]["status_rec_date"] = date("Y-m-d H:i:s");
}
/* reset the event counter */
$hosts[$host_id]["status_event_count"] = 0;
/* host is recovering, but not ready to issue log message */
} else {
/* host recovering for the first time, set event date */
if ($hosts[$host_id]["status_event_count"] == 1) {
$hosts[$host_id]["status_rec_date"] = date("Y-m-d H:i:s");
}
}
} else {
/* host was unknown and now is up */
$hosts[$host_id]["status"] = HOST_UP;
$hosts[$host_id]["status_event_count"] = 0;
}
}
/* if the user wants a flood of information then flood them */
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_HIGH) {
if (($hosts[$host_id]["status"] == HOST_UP) || ($hosts[$host_id]["status"] == HOST_RECOVERING)) {
/* log ping result if we are to use a ping for reachability testing */
if ($ping_availability == AVAIL_SNMP_AND_PING) {
cacti_log("Host[$host_id] PING: " . $ping->ping_response, $print_data_to_stdout);
cacti_log("Host[$host_id] SNMP: " . $ping->snmp_response, $print_data_to_stdout);
} elseif ($ping_availability == AVAIL_SNMP) {
if (($hosts[$host_id]["snmp_community"] == "") && ($hosts[$host_id]["snmp_version"] != 3)) {
cacti_log("Host[$host_id] SNMP: Device does not require SNMP", $print_data_to_stdout);
}else{
cacti_log("Host[$host_id] SNMP: " . $ping->snmp_response, $print_data_to_stdout);
}
} else {
cacti_log("Host[$host_id] PING: " . $ping->ping_response, $print_data_to_stdout);
}
} else {
if ($ping_availability == AVAIL_SNMP_AND_PING) {
cacti_log("Host[$host_id] PING: " . $ping->ping_response, $print_data_to_stdout);
cacti_log("Host[$host_id] SNMP: " . $ping->snmp_response, $print_data_to_stdout);
} elseif ($ping_availability == AVAIL_SNMP) {
cacti_log("Host[$host_id] SNMP: " . $ping->snmp_response, $print_data_to_stdout);
} else {
cacti_log("Host[$host_id] PING: " . $ping->ping_response, $print_data_to_stdout);
}
}
}
/* if there is supposed to be an event generated, do it */
if ($issue_log_message) {
if ($hosts[$host_id]["status"] == HOST_DOWN) {
cacti_log("Host[$host_id] ERROR: HOST EVENT: Host is DOWN Message: " . $hosts[$host_id]["status_last_error"], $print_data_to_stdout);
} else {
cacti_log("Host[$host_id] NOTICE: HOST EVENT: Host Returned FROM DOWN State: ", $print_data_to_stdout);
}
}
db_execute("UPDATE host set
status = '" . $hosts[$host_id]["status"] . "',
status_event_count = '" . $hosts[$host_id]["status_event_count"] . "',
status_fail_date = '" . $hosts[$host_id]["status_fail_date"] . "',
status_rec_date = '" . $hosts[$host_id]["status_rec_date"] . "',
status_last_error = '" . $hosts[$host_id]["status_last_error"] . "',
min_time = '" . $hosts[$host_id]["min_time"] . "',
max_time = '" . $hosts[$host_id]["max_time"] . "',
cur_time = '" . $hosts[$host_id]["cur_time"] . "',
avg_time = '" . $hosts[$host_id]["avg_time"] . "',
total_polls = '" . $hosts[$host_id]["total_polls"] . "',
failed_polls = '" . $hosts[$host_id]["failed_polls"] . "',
availability = '" . $hosts[$host_id]["availability"] . "'
where hostname = '" . $hosts[$host_id]["hostname"] . "'");
}
/* strip_quotes - Strip single and double quotes from a string
in addition remove non-numeric data from strings.
@arg $result - (string) the result from the poll
@returns - (string) the string with quotes stripped */
function strip_quotes($result) {
/* first strip all single and double quotes from the string */
$result = trim(trim($result), "'\"");
/* clean off ugly non-numeric data */
if ((!is_numeric($result)) && (!is_hexadecimal($result)) && ($result != "U")) {
$len = strlen($result);
for($a=$len-1; $a>=0; $a--){
$p = ord($result[$a]);
if ((($p > 47) && ($p < 58)) || ($p==85)) {
$result = substr($result,0,$a+1);
break;
}
}
}
return($result);
}
/* is_hexadecimal - test whether a string represents a hexadecimal number,
ignoring space and tab, and case insensitive.
@arg $hexstr - the string to test
@arg 1 if the argument is hex, 0 otherwise, and FALSE on error */
function is_hexadecimal($hexstr) {
$hexstr = trim($hexstr);
$i = 0;
$length = strlen($hexstr);
while ($i < $length) {
$part = substr($hexstr,$i,2);
$i += 2;
if (!preg_match('/[a-fA-F0-9]/', $part)) {
return false;
} elseif ($i < $length) {
if (substr($hexstr,$i,1) != ":") {
return false;
}elseif ($i + 1 == $length) {
return false;
}
$i++;
}else{
$i++;
}
}
return true;
}
/* validate_result - determine's if the result value is valid or not. If not valid returns a "U"
@arg $result - (string) the result from the poll, the result can be modified in the call
@returns - (int) either to result is valid or not */
function validate_result(&$result) {
$delim_cnt = 0;
$space_cnt = 0;
$valid_result = false;
$checked = false;
/* check the easy cases first */
/* it has no delimiters, and no space, therefore, must be numeric */
if ((substr_count($result, ":") == 0) && (substr_count($result, "!") == 0) && (substr_count($result, " ") == 0)) {
$checked = true;
if (is_numeric($result)) {
$valid_result = true;
} else if (is_float($result)) {
$valid_result = true;
} else {
$valid_result = false;
$result = "U";
}
}
/* it has delimiters and has no space */
if (!$checked) {
if (((substr_count($result, ":")) || (substr_count($result, "!")))) {
if (substr_count($result, " ") == 0) {
$valid_result = true;
$checked = true;
}
if (substr_count($result, " ") != 0) {
$checked = true;
if (substr_count($result, ":")) {
$delim_cnt = substr_count($result, ":");
} else if (strstr($result, "!")) {
$delim_cnt = substr_count($result, "!");
}
$space_cnt = substr_count($result, " ");
if ($space_cnt+1 == $delim_cnt) {
$valid_result = true;
} else {
$valid_result = false;
}
}
}
}
/* default handling */
if (!$checked) {
if (is_numeric($result)) {
$valid_result = true;
} else if (is_float($result)) {
$valid_result = true;
} else {
$valid_result = false;
}
}
return($valid_result);
}
/* get_full_script_path - gets the full path to the script to execute to obtain data for a
given data source. this function does not work on SNMP actions, only script-based actions
@arg $local_data_id - (int) the ID of the data source
@returns - the full script path or (bool) false for an error */
function get_full_script_path($local_data_id) {
global $config;
$data_source = db_fetch_row("select
data_template_data.id,
data_template_data.data_input_id,
data_input.type_id,
data_input.input_string
from (data_template_data,data_input)
where data_template_data.data_input_id=data_input.id
and data_template_data.local_data_id=$local_data_id");
/* snmp-actions don't have paths */
if (($data_source["type_id"] == DATA_INPUT_TYPE_SNMP) || ($data_source["type_id"] == DATA_INPUT_TYPE_SNMP_QUERY)) {
return false;
}
$data = db_fetch_assoc("select
data_input_fields.data_name,
data_input_data.value
from data_input_fields
left join data_input_data
on (data_input_fields.id=data_input_data.data_input_field_id)
where data_input_fields.data_input_id=" . $data_source["data_input_id"] . "
and data_input_data.data_template_data_id=" . $data_source["id"] . "
and data_input_fields.input_output='in'");
$full_path = $data_source["input_string"];
if (sizeof($data) > 0) {
foreach ($data as $item) {
$full_path = str_replace("<" . $item["data_name"] . ">", $item["value"], $full_path);
}
}
$full_path = str_replace("<path_cacti>", $config["base_path"], $full_path);
$full_path = str_replace("<path_snmpget>", read_config_option("path_snmpget"), $full_path);
$full_path = str_replace("<path_php_binary>", read_config_option("path_php_binary"), $full_path);
/* sometimes a certain input value will not have anything entered... null out these fields
in the input string so we don't mess up the script */
$full_path = preg_replace("/(<[A-Za-z0-9_]+>)+/", "", $full_path);
return $full_path;
}
/* get_data_source_item_name - gets the name of a data source item or generates a new one if one does not
already exist
@arg $data_template_rrd_id - (int) the ID of the data source item
@returns - the name of the data source item or an empty string for an error */
function get_data_source_item_name($data_template_rrd_id) {
if (empty($data_template_rrd_id)) { return ""; }
$data_source = db_fetch_row("select
data_template_rrd.data_source_name,
data_template_data.name
from (data_template_rrd,data_template_data)
where data_template_rrd.local_data_id=data_template_data.local_data_id
and data_template_rrd.id=$data_template_rrd_id");
/* use the cacti ds name by default or the user defined one, if entered */
if (empty($data_source["data_source_name"])) {
/* limit input to 19 characters */
$data_source_name = clean_up_name($data_source["name"]);
$data_source_name = substr(strtolower($data_source_name),0,(19-strlen($data_template_rrd_id))) . $data_template_rrd_id;
return $data_source_name;
}else{
return $data_source["data_source_name"];
}
}
/* get_data_source_path - gets the full path to the .rrd file associated with a given data source
@arg $local_data_id - (int) the ID of the data source
@arg $expand_paths - (bool) whether to expand the <path_rra> variable into its full path or not
@returns - the full path to the data source or an empty string for an error */
function get_data_source_path($local_data_id, $expand_paths) {
global $config;
if (empty($local_data_id)) { return ""; }
$data_source = db_fetch_row("SELECT name,data_source_path FROM data_template_data WHERE local_data_id=$local_data_id");
if (sizeof($data_source) > 0) {
if (empty($data_source["data_source_path"])) {
/* no custom path was specified */
$data_source_path = generate_data_source_path($local_data_id);
}else{
if (!strstr($data_source["data_source_path"], "/")) {
$data_source_path = "<path_rra>/" . $data_source["data_source_path"];
}else{
$data_source_path = $data_source["data_source_path"];
}
}
/* whether to show the "actual" path or the <path_rra> variable name (for edit boxes) */
if ($expand_paths == true) {
$data_source_path = str_replace('<path_rra>', $config['rra_path'], $data_source_path);
}
return $data_source_path;
}
}
/* stri_replace - a case insensitive string replace
@arg $find - needle
@arg $replace - replace needle with this
@arg $string - haystack
@returns - the original string with '$find' replaced by '$replace' */
function stri_replace($find, $replace, $string) {
$parts = explode(strtolower($find), strtolower($string));
$pos = 0;
foreach ($parts as $key=>$part) {
$parts[$key] = substr($string, $pos, strlen($part));
$pos += strlen($part) + strlen($find);
}
return (join($replace, $parts));
}
/* clean_up_name - runs a string through a series of regular expressions designed to
eliminate "bad" characters
@arg $string - the string to modify/clean
@returns - the modified string */
function clean_up_name($string) {
$string = preg_replace("/[\s\.]+/", "_", $string);
$string = preg_replace("/[^a-zA-Z0-9_]+/", "", $string);
$string = preg_replace("/_{2,}/", "_", $string);
return $string;
}
/* clean_up_file name - runs a string through a series of regular expressions designed to
eliminate "bad" characters
@arg $string - the string to modify/clean
@returns - the modified string */
function clean_up_file_name($string) {
$string = preg_replace("/[\s\.]+/", "_", $string);
$string = preg_replace("/[^a-zA-Z0-9_-]+/", "", $string);
$string = preg_replace("/_{2,}/", "_", $string);
return $string;
}
/* clean_up_path - takes any path and makes sure it contains the correct directory
separators based on the current operating system
@arg $path - the path to modify
@returns - the modified path */
function clean_up_path($path) {
global $config;
if ($config["cacti_server_os"] == "unix" or read_config_option("using_cygwin") == "on") {
$path = str_replace("\\", "/", $path);
}elseif ($config["cacti_server_os"] == "win32") {
$path = str_replace("/", "\\", $path);
}
return $path;
}
/* get_data_source_title - returns the title of a data source without using the title cache
@arg $local_data_id - (int) the ID of the data source to get a title for
@returns - the data source title */
function get_data_source_title($local_data_id) {
$data = db_fetch_row("select
data_local.host_id,
data_local.snmp_query_id,
data_local.snmp_index,
data_template_data.name
from (data_template_data,data_local)
where data_template_data.local_data_id=data_local.id
and data_local.id=$local_data_id");
if ((strstr($data["name"], "|")) && (!empty($data["host_id"]))) {
$data["name"] = substitute_data_input_data($data["name"], "", $local_data_id);
return expand_title($data["host_id"], $data["snmp_query_id"], $data["snmp_index"], $data["name"]);
}else{
return $data["name"];
}
}
/* get_graph_title - returns the title of a graph without using the title cache
@arg $local_graph_id - (int) the ID of the graph to get a title for
@returns - the graph title */
function get_graph_title($local_graph_id) {
$graph = db_fetch_row("select
graph_local.host_id,
graph_local.snmp_query_id,
graph_local.snmp_index,
graph_templates_graph.local_graph_id,
graph_templates_graph.title
from (graph_templates_graph,graph_local)
where graph_templates_graph.local_graph_id=graph_local.id
and graph_local.id=$local_graph_id");
if ((strstr($graph["title"], "|")) && (!empty($graph["host_id"]))) {
$graph["title"] = substitute_data_input_data($graph["title"], $graph, 0);
return expand_title($graph["host_id"], $graph["snmp_query_id"], $graph["snmp_index"], $graph["title"]);
}else{
return $graph["title"];
}
}
/* get_username - returns the username for the selected user
@arg $user_id - (int) the ID of the user
@returns - the username */
function get_username($user_id) {
return db_fetch_cell("SELECT username FROM user_auth WHERE id=$user_id");
}
/* generate_data_source_path - creates a new data source path from scratch using the first data source
item name and updates the database with the new value
@arg $local_data_id - (int) the ID of the data source to generate a new path for
@returns - the new generated path */
function generate_data_source_path($local_data_id) {
global $config;
$host_part = ""; $ds_part = "";
$extended_paths = read_config_option("extended_paths");
/* try any prepend the name with the host description */
$host = db_fetch_row("SELECT
host.id,
host.description
FROM (host, data_local)
WHERE data_local.host_id=host.id
AND data_local.id=$local_data_id
LIMIT 1");
$host_name = $host["description"];
$host_id = $host["id"];
/* put it all together using the local_data_id at the end */
if ($extended_paths == "on") {
$new_path = "<path_rra>/$host_id/$local_data_id.rrd";
}else{
if (!empty($host_name)) {
$host_part = strtolower(clean_up_file_name($host_name)) . "_";
}
/* then try and use the internal DS name to identify it */
$data_source_rrd_name = db_fetch_cell("SELECT data_source_name
FROM data_template_rrd
WHERE local_data_id=$local_data_id
ORDER BY id");
if (!empty($data_source_rrd_name)) {
$ds_part = strtolower(clean_up_file_name($data_source_rrd_name));
}else{
$ds_part = "ds";
}
$new_path = "<path_rra>/$host_part$ds_part" . "_" . "$local_data_id.rrd";
}
/* update our changes to the db */
db_execute("UPDATE data_template_data SET data_source_path='$new_path' WHERE local_data_id=$local_data_id");
return $new_path;
}
/* generate graph_best_cf - takes the requested consolidation function and maps against
the list of available consolidation functions for the consolidation functions and returns
the most appropriate. Typically, this will be the requested value
@arg $data_template_id
@arg $requested_cf
@returns - the best cf to use */
function generate_graph_best_cf($local_data_id, $requested_cf) {
if ($local_data_id > 0) {
$avail_cf_functions = get_rrd_cfs($local_data_id);
/* workaround until we have RRA presets in 0.8.8 */
if (sizeof($avail_cf_functions)) {
/* check through the cf's and get the best */
foreach($avail_cf_functions as $cf) {
if ($cf == $requested_cf) {
return $requested_cf;
}
}
/* if none was found, take the first */
return $avail_cf_functions[0];
}
}
/* if you can not figure it out return average */
return "1";
}
/* get_rrd_cfs - reads the RRDfile and get's the RRA's stored in it.
@arg $local_data_id
@returns - array of the CF functions */
function get_rrd_cfs($local_data_id) {
global $rrd_cfs, $consolidation_functions;
$rrdfile = get_data_source_path($local_data_id, TRUE);
if (!isset($rrd_cfs)) {
$rrd_cfs = array();
}else if (array_key_exists($local_data_id, $rrd_cfs)) {
return $rrd_cfs[$local_data_id];
}
$cfs = array();
$output = @rrdtool_execute("info $rrdfile", FALSE, RRDTOOL_OUTPUT_STDOUT);
/* search for
* rra[0].cf = "LAST"
* or similar
*/
if (strlen($output)) {
$output = explode("\n", $output);
if (sizeof($output)) {
foreach($output as $line) {
if (substr_count($line, ".cf")) {
$values = explode("=",$line);
if (!in_array(trim($values[1], '" '), $cfs)) {
$cfs[] = trim($values[1], '" ');
}
}
}
}
}
$new_cfs = array();
if (sizeof($cfs)) {
foreach($cfs as $cf) {
switch($cf) {
case "AVG":
case "AVERAGE":
$new_cfs[] = array_search('AVERAGE', $consolidation_functions);
break;
case "MIN":
$new_cfs[] = array_search('MIN', $consolidation_functions);
break;
case "MAX":
$new_cfs[] = array_search('MAX', $consolidation_functions);
break;
case "LAST":
$new_cfs[] = array_search('LAST', $consolidation_functions);
break;
}
}
}
$rrd_cfs[$local_data_id] = $new_cfs;
return $new_cfs;
}
/* generate_graph_def_name - takes a number and turns each digit into its letter-based
counterpart for RRDTool DEF names (ex 1 -> a, 2 -> b, etc)
@arg $graph_item_id - (int) the ID to generate a letter-based representation of
@returns - a letter-based representation of the input argument */
function generate_graph_def_name($graph_item_id) {
$lookup_table = array("a","b","c","d","e","f","g","h","i","j");
$result = "";
for ($i=0; $i<strlen(strval($graph_item_id)); $i++) {
$result .= $lookup_table{substr(strval($graph_item_id), $i, 1)};
}
return $result;
}
/* generate_data_input_field_sequences - re-numbers the sequences of each field associated
with a particular data input method based on its position within the input string
@arg $string - the input string that contains the field variables in a certain order
@arg $data_input_id - (int) the ID of the data input method */
function generate_data_input_field_sequences($string, $data_input_id) {
global $config, $registered_cacti_names;
if (preg_match_all("/<([_a-zA-Z0-9]+)>/", $string, $matches)) {
$j = 0;
for ($i=0; ($i < count($matches[1])); $i++) {
if (in_array($matches[1][$i], $registered_cacti_names) == false) {
$j++; db_execute("UPDATE data_input_fields set sequence=$j WHERE data_input_id=$data_input_id AND input_output='in' and data_name='" . $matches[1][$i] . "'");
}
}
}
}
/* move_graph_group - takes a graph group (parent+children) and swaps it with another graph
group
@arg $graph_template_item_id - (int) the ID of the (parent) graph item that was clicked
@arg $graph_group_array - (array) an array containing the graph group to be moved
@arg $target_id - (int) the ID of the (parent) graph item of the target group
@arg $direction - ('next' or 'previous') whether the graph group is to be swapped with
group above or below the current group */
function move_graph_group($graph_template_item_id, $graph_group_array, $target_id, $direction) {
$graph_item = db_fetch_row("SELECT local_graph_id,graph_template_id FROM graph_templates_item WHERE id=$graph_template_item_id");
if (empty($graph_item["local_graph_id"])) {
$sql_where = "graph_template_id = " . $graph_item["graph_template_id"] . " AND local_graph_id=0";
}else{
$sql_where = "local_graph_id = " . $graph_item["local_graph_id"];
}
$graph_items = db_fetch_assoc("SELECT id,sequence FROM graph_templates_item WHERE $sql_where ORDER BY sequence");
/* get a list of parent+children of our target group */
$target_graph_group_array = get_graph_group($target_id);
/* if this "parent" item has no children, then treat it like a regular gprint */
if (sizeof($target_graph_group_array) == 0) {
if ($direction == "next") {
move_item_down("graph_templates_item", $graph_template_item_id, $sql_where);
}elseif ($direction == "previous") {
move_item_up("graph_templates_item", $graph_template_item_id, $sql_where);
}
return;
}
/* start the sequence at '1' */
$sequence_counter = 1;
if (sizeof($graph_items) > 0) {
foreach ($graph_items as $item) {
/* check to see if we are at the "target" spot in the loop; if we are, update the sequences and move on */
if ($target_id == $item["id"]) {
if ($direction == "next") {
$group_array1 = $target_graph_group_array;
$group_array2 = $graph_group_array;
}elseif ($direction == "previous") {
$group_array1 = $graph_group_array;
$group_array2 = $target_graph_group_array;
}
while (list($sequence,$graph_template_item_id) = each($group_array1)) {
db_execute("UPDATE graph_templates_item set sequence=$sequence_counter WHERE id=$graph_template_item_id");
/* propagate to ALL graphs using this template */
if (empty($graph_item["local_graph_id"])) {
db_execute("UPDATE graph_templates_item set sequence=$sequence_counter WHERE local_graph_template_item_id=$graph_template_item_id");
}
$sequence_counter++;
}
while (list($sequence,$graph_template_item_id) = each($group_array2)) {
db_execute("UPDATE graph_templates_item set sequence=$sequence_counter WHERE id=$graph_template_item_id");
/* propagate to ALL graphs using this template */
if (empty($graph_item["local_graph_id"])) {
db_execute("UPDATE graph_templates_item set sequence=$sequence_counter WHERE local_graph_template_item_id=$graph_template_item_id");
}
$sequence_counter++;
}
}
/* make sure to "ignore" the items that we handled above */
if ((!isset($graph_group_array{$item["id"]})) && (!isset($target_graph_group_array{$item["id"]}))) {
db_execute("UPDATE graph_templates_item set sequence=$sequence_counter WHERE id=" . $item["id"]);
$sequence_counter++;
}
}
}
}
/* get_graph_group - returns an array containing each item in the graph group given a single
graph item in that group
@arg $graph_template_item_id - (int) the ID of the graph item to return the group of
@returns - (array) an array containing each item in the graph group */
function get_graph_group($graph_template_item_id) {
global $graph_item_types;
$graph_item = db_fetch_row("SELECT graph_type_id,sequence,local_graph_id,graph_template_id FROM graph_templates_item WHERE id=$graph_template_item_id");
if (empty($graph_item["local_graph_id"])) {
$sql_where = "graph_template_id = " . $graph_item["graph_template_id"] . " AND local_graph_id=0";
}else{
$sql_where = "local_graph_id = " . $graph_item["local_graph_id"];
}
/* a parent must NOT be the following graph item types */
if (preg_match("/(GPRINT|VRULE|HRULE|COMMENT)/", $graph_item_types{$graph_item["graph_type_id"]})) {
return;
}
$graph_item_children_array = array();
/* put the parent item in the array as well */
$graph_item_children_array[$graph_template_item_id] = $graph_template_item_id;
$graph_items = db_fetch_assoc("SELECT id,graph_type_id FROM graph_templates_item WHERE sequence > " . $graph_item["sequence"] . " AND $sql_where ORDER BY sequence");
if (sizeof($graph_items) > 0) {
foreach ($graph_items as $item) {
if ($graph_item_types{$item["graph_type_id"]} == "GPRINT") {
/* a child must be a GPRINT */
$graph_item_children_array{$item["id"]} = $item["id"];
}else{
/* if not a GPRINT then get out */
return $graph_item_children_array;
}
}
}
return $graph_item_children_array;
}
/* get_graph_parent - returns the ID of the next or previous parent graph item id
@arg $graph_template_item_id - (int) the ID of the current graph item
@arg $direction - ('next' or 'previous') whether to find the next or previous parent
@returns - (int) the ID of the next or previous parent graph item id */
function get_graph_parent($graph_template_item_id, $direction) {
$graph_item = db_fetch_row("SELECT sequence,local_graph_id,graph_template_id FROM graph_templates_item WHERE id=$graph_template_item_id");
if (empty($graph_item["local_graph_id"])) {
$sql_where = "graph_template_id = " . $graph_item["graph_template_id"] . " AND local_graph_id=0";
}else{
$sql_where = "local_graph_id = " . $graph_item["local_graph_id"];
}
if ($direction == "next") {
$sql_operator = ">";
$sql_order = "ASC";
}elseif ($direction == "previous") {
$sql_operator = "<";
$sql_order = "DESC";
}
$next_parent_id = db_fetch_cell("SELECT id FROM graph_templates_item WHERE sequence $sql_operator " . $graph_item["sequence"] . " AND graph_type_id != 9 and $sql_where ORDER BY sequence $sql_order limit 1");
if (empty($next_parent_id)) {
return 0;
}else{
return $next_parent_id;
}
}
/* get_item - returns the ID of the next or previous item id
@arg $tblname - the table name that contains the target id
@arg $field - the field name that contains the target id
@arg $startid - (int) the current id
@arg $lmt_query - an SQL "where" clause to limit the query
@arg $direction - ('next' or 'previous') whether to find the next or previous item id
@returns - (int) the ID of the next or previous item id */
function get_item($tblname, $field, $startid, $lmt_query, $direction) {
if ($direction == "next") {
$sql_operator = ">";
$sql_order = "ASC";
}elseif ($direction == "previous") {
$sql_operator = "<";
$sql_order = "DESC";
}
$current_sequence = db_fetch_cell("SELECT $field FROM $tblname WHERE id=$startid");
$new_item_id = db_fetch_cell("SELECT id FROM $tblname WHERE $field $sql_operator $current_sequence AND $lmt_query ORDER BY $field $sql_order limit 1");
if (empty($new_item_id)) {
return $startid;
}else{
return $new_item_id;
}
}
/* get_sequence - returns the next available sequence id
@arg $id - (int) the current id
@arg $field - the field name that contains the target id
@arg $table_name - the table name that contains the target id
@arg $group_query - an SQL "where" clause to limit the query
@returns - (int) the next available sequence id */
function get_sequence($id, $field, $table_name, $group_query) {
if (empty($id)) {
$data = db_fetch_row("SELECT max($field)+1 as seq FROM $table_name WHERE $group_query");
if ($data["seq"] == "") {
return 1;
}else{
return $data["seq"];
}
}else{
$data = db_fetch_row("SELECT $field FROM $table_name WHERE id=$id");
return $data[$field];
}
}
/* move_item_down - moves an item down by swapping it with the item below it
@arg $table_name - the table name that contains the target id
@arg $current_id - (int) the current id
@arg $group_query - an SQL "where" clause to limit the query */
function move_item_down($table_name, $current_id, $group_query) {
$next_item = get_item($table_name, "sequence", $current_id, $group_query, "next");
$sequence = db_fetch_cell("SELECT sequence FROM $table_name WHERE id=$current_id");
$sequence_next = db_fetch_cell("SELECT sequence FROM $table_name WHERE id=$next_item");
db_execute("UPDATE $table_name set sequence=$sequence_next WHERE id=$current_id");
db_execute("UPDATE $table_name set sequence=$sequence WHERE id=$next_item");
}
/* move_item_up - moves an item down by swapping it with the item above it
@arg $table_name - the table name that contains the target id
@arg $current_id - (int) the current id
@arg $group_query - an SQL "where" clause to limit the query */
function move_item_up($table_name, $current_id, $group_query) {
$last_item = get_item($table_name, "sequence", $current_id, $group_query, "previous");
$sequence = db_fetch_cell("SELECT sequence FROM $table_name WHERE id=$current_id");
$sequence_last = db_fetch_cell("SELECT sequence FROM $table_name WHERE id=$last_item");
db_execute("UPDATE $table_name set sequence=$sequence_last WHERE id=$current_id");
db_execute("UPDATE $table_name set sequence=$sequence WHERE id=$last_item");
}
/* exec_into_array - executes a command and puts each line of its output into
an array
@arg $command_line - the command to execute
@returns - (array) an array containing the command output */
function exec_into_array($command_line) {
$out = array();
$err = 0;
exec($command_line,$out,$err);
$command_array = array();
for($i=0; list($key, $value) = each($out); $i++) {
$command_array[$i] = $value;
}
return $command_array;
}
/* get_web_browser - determines the current web browser in use by the client
@returns - ('ie' or 'moz' or 'other') */
function get_web_browser() {
if (!empty($_SERVER["HTTP_USER_AGENT"])) {
if (stristr($_SERVER["HTTP_USER_AGENT"], "Mozilla") && (!(stristr($_SERVER["HTTP_USER_AGENT"], "compatible")))) {
return "moz";
}elseif (stristr($_SERVER["HTTP_USER_AGENT"], "MSIE")) {
return "ie";
}else{
return "other";
}
}else{
return "other";
}
}
/* get_graph_tree_array - returns a list of graph trees taking permissions into account if
necessary
@arg $return_sql - (bool) Whether to return the SQL to create the dropdown rather than an array
@arg $force_refresh - (bool) Force the refresh of the array from the database
@arg $edit - (bool) Shows the content even though the graph may not be published
@returns - (array) an array containing a list of graph trees */
function get_graph_tree_array($return_sql = false, $force_refresh = false, $edit = false) {
return get_allowed_trees($edit, $return_sql);
}
/* draw_login_status - provides a consistent login status page for all pages that use it */
function draw_login_status($using_guest_account = false) {
global $config;
$guest_account = db_fetch_cell("SELECT id FROM user_auth WHERE username='" . read_config_option('guest_user') . "'");
$auth_method = read_config_option('auth_method');
if (isset($_SESSION['sess_user_id']) && $_SESSION['sess_user_id'] == $guest_account) {
api_plugin_hook('nav_login_before');
print "Logged in as <span id='user' class='user usermenuup'>guest</span></div><div><ul class='menuoptions' style='display:none;'><li><a href='" . $config['url_path'] . "index.php'>Login as Regular User</a></li></ul>\n";
api_plugin_hook('nav_login_after');
print "</div>\n";
}elseif (isset($_SESSION["sess_user_id"]) && $using_guest_account == false) {
api_plugin_hook('nav_login_before');
print "Logged in as <span id='user' class='user usermenuup'>" . db_fetch_cell("SELECT username FROM user_auth WHERE id=" . $_SESSION["sess_user_id"]) . "</span></div><div><ul class='menuoptions' style='display:none;'><li><a href='" . $config['url_path'] . "logout.php'>Logout</a></li>" . ($auth_method == 1 ? "<li><a href='" . $config['url_path'] . "auth_changepassword.php'>Change Password</a></li>":"") . "</ul>\n";
api_plugin_hook('nav_login_after');
print "</div>\n";
}
}
/* draw_navigation_text - determines the top header navigation text for the current page and displays it to
@arg $type - (string) Either 'url' or 'title'
@returns (string> Either the navigation text or title */
function draw_navigation_text($type = "url") {
global $config;
$nav_level_cache = (isset($_SESSION["sess_nav_level_cache"]) ? $_SESSION["sess_nav_level_cache"] : array());
$nav = array(
"graph_view.php:" => array("title" => "Graphs", "mapping" => "", "url" => "graph_view.php", "level" => "0"),
"graph_view.php:tree" => array("title" => "Tree Mode", "mapping" => "graph_view.php:", "url" => "graph_view.php?action=tree", "level" => "1"),
"graph_view.php:tree_content" => array("title" => "Tree Mode", "mapping" => "graph_view.php:", "url" => "graph_view.php?action=tree", "level" => "1"),
"graph_view.php:list" => array("title" => "List Mode", "mapping" => "graph_view.php:", "url" => "graph_view.php?action=list", "level" => "1"),
"graph_view.php:preview" => array("title" => "Preview Mode", "mapping" => "graph_view.php:", "url" => "graph_view.php?action=preview", "level" => "1"),
"graph.php:" => array("title" => "|current_graph_title|", "mapping" => "graph_view.php:,?", "level" => "2"),
"graph.php:view" => array("title" => "|current_graph_title|", "mapping" => "graph_view.php:,?", "level" => "2"),
"graph.php:zoom" => array("title" => "Zoom", "mapping" => "graph_view.php:,?,graph.php:view", "level" => "3"),
"graph.php:properties" => array("title" => "Properties", "mapping" => "graph_view.php:,?,graph.php:view", "level" => "3"),
"graph_settings.php:" => array("title" => "Settings", "mapping" => "graph_view.php:", "url" => "graph_settings.php", "level" => "1"),
"index.php:" => array("title" => "Console", "mapping" => "", "url" => $config['url_path'] . "index.php", "level" => "0"),
"index.php:login" => array("title" => "Console", "mapping" => "", "url" => $config['url_path'] . "index.php", "level" => "0"),
"graphs.php:" => array("title" => "Graph Management", "mapping" => "index.php:", "url" => "graphs.php", "level" => "1"),
"graphs.php:graph_edit" => array("title" => "(Edit)", "mapping" => "index.php:,graphs.php:", "url" => "", "level" => "2"),
"graphs.php:graph_diff" => array("title" => "Change Graph Template", "mapping" => "index.php:,graphs.php:,graphs.php:graph_edit", "url" => "", "level" => "3"),
"graphs.php:actions" => array("title" => "Actions", "mapping" => "index.php:,graphs.php:", "url" => "", "level" => "2"),
"graphs_items.php:item_edit" => array("title" => "Graph Items", "mapping" => "index.php:,graphs.php:,graphs.php:graph_edit", "url" => "", "level" => "3"),
"graphs_new.php:" => array("title" => "Create New Graphs", "mapping" => "index.php:", "url" => "graphs_new.php", "level" => "1"),
"graphs_new.php:save" => array("title" => "Create Graphs from Data Query", "mapping" => "index.php:,graphs_new.php:", "url" => "", "level" => "2"),
"gprint_presets.php:" => array("title" => "GPRINT Presets", "mapping" => "index.php:", "url" => "gprint_presets.php", "level" => "1"),
"gprint_presets.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,gprint_presets.php:", "url" => "", "level" => "2"),
"gprint_presets.php:remove" => array("title" => "(Remove)", "mapping" => "index.php:,gprint_presets.php:", "url" => "", "level" => "2"),
"cdef.php:" => array("title" => "CDEF's", "mapping" => "index.php:", "url" => "cdef.php", "level" => "1"),
"cdef.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,cdef.php:", "url" => "", "level" => "2"),
"cdef.php:remove" => array("title" => "(Remove)", "mapping" => "index.php:,cdef.php:", "url" => "", "level" => "2"),
"cdef.php:item_edit" => array("title" => "CDEF Items", "mapping" => "index.php:,cdef.php:,cdef.php:edit", "url" => "", "level" => "3"),
"cdef.php:actions" => array("title" => "Actions", "mapping" => "index.php:,cdef.php:", "url" => "", "level" => "2"),
"tree.php:" => array("title" => "Graph Trees", "mapping" => "index.php:", "url" => "tree.php", "level" => "1"),
"tree.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,tree.php:", "url" => "", "level" => "2"),
"color.php:" => array("title" => "Colors", "mapping" => "index.php:", "url" => "color.php", "level" => "1"),
"color.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,color.php:", "url" => "", "level" => "2"),
"graph_templates.php:" => array("title" => "Graph Templates", "mapping" => "index.php:", "url" => "graph_templates.php", "level" => "1"),
"graph_templates.php:template_edit" => array("title" => "(Edit)", "mapping" => "index.php:,graph_templates.php:", "url" => "", "level" => "2"),
"graph_templates.php:actions" => array("title" => "Actions", "mapping" => "index.php:,graph_templates.php:", "url" => "", "level" => "2"),
"graph_templates_items.php:item_edit" => array("title" => "Graph Template Items", "mapping" => "index.php:,graph_templates.php:,graph_templates.php:template_edit", "url" => "", "level" => "3"),
"graph_templates_inputs.php:input_edit" => array("title" => "Graph Item Inputs", "mapping" => "index.php:,graph_templates.php:,graph_templates.php:template_edit", "url" => "", "level" => "3"),
"graph_templates_inputs.php:input_remove" => array("title" => "(Remove)", "mapping" => "index.php:,graph_templates.php:,graph_templates.php:template_edit", "url" => "", "level" => "3"),
"host_templates.php:" => array("title" => "Host Templates", "mapping" => "index.php:", "url" => "host_templates.php", "level" => "1"),
"host_templates.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,host_templates.php:", "url" => "", "level" => "2"),
"host_templates.php:actions" => array("title" => "Actions", "mapping" => "index.php:,host_templates.php:", "url" => "", "level" => "2"),
"graph_templates.php:actions" => array("title" => "Actions", "mapping" => "index.php:,graph_templates.php:", "url" => "", "level" => "2"),
"data_templates.php:" => array("title" => "Data Templates", "mapping" => "index.php:", "url" => "data_templates.php", "level" => "1"),
"data_templates.php:template_edit" => array("title" => "(Edit)", "mapping" => "index.php:,data_templates.php:", "url" => "", "level" => "2"),
"data_templates.php:actions" => array("title" => "Actions", "mapping" => "index.php:,data_templates.php:", "url" => "", "level" => "2"),
"data_sources.php:" => array("title" => "Data Sources", "mapping" => "index.php:", "url" => "data_sources.php", "level" => "1"),
"data_sources.php:ds_edit" => array("title" => "(Edit)", "mapping" => "index.php:,data_sources.php:", "url" => "", "level" => "2"),
"data_sources.php:actions" => array("title" => "Actions", "mapping" => "index.php:,data_sources.php:", "url" => "", "level" => "2"),
"host.php:" => array("title" => "Devices", "mapping" => "index.php:", "url" => "host.php", "level" => "1"),
"host.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,host.php:", "url" => "", "level" => "2"),
"host.php:actions" => array("title" => "Actions", "mapping" => "index.php:,host.php:", "url" => "", "level" => "2"),
"rra.php:" => array("title" => "Round Robin Archives", "mapping" => "index.php:", "url" => "rra.php", "level" => "1"),
"rra.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,rra.php:", "url" => "", "level" => "2"),
"rra.php:remove" => array("title" => "(Remove)", "mapping" => "index.php:,rra.php:", "url" => "", "level" => "2"),
"data_input.php:" => array("title" => "Data Input Methods", "mapping" => "index.php:", "url" => "data_input.php", "level" => "1"),
"data_input.php:actions" => array("title" => "Actions", "mapping" => "index.php:,data_input.php:", "url" => "", "level" => "2"),
"data_input.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,data_input.php:", "url" => "", "level" => "2"),
"data_input.php:remove" => array("title" => "(Remove)", "mapping" => "index.php:,data_input.php:", "url" => "", "level" => "2"),
"data_input.php:field_edit" => array("title" => "Data Input Fields", "mapping" => "index.php:,data_input.php:,data_input.php:edit", "url" => "", "level" => "3"),
"data_input.php:field_remove" => array("title" => "(Remove Item)", "mapping" => "index.php:,data_input.php:,data_input.php:edit", "url" => "", "level" => "3"),
"data_queries.php:" => array("title" => "Data Queries", "mapping" => "index.php:", "url" => "data_queries.php", "level" => "1"),
"data_queries.php:actions" => array("title" => "Actions", "mapping" => "index.php:,data_queries.php:", "url" => "", "level" => "2"),
"data_queries.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,data_queries.php:", "url" => "", "level" => "2"),
"data_queries.php:item_edit" => array("title" => "Associated Graph Templates", "mapping" => "index.php:,data_queries.php:,data_queries.php:edit", "url" => "", "level" => "3"),
"data_queries.php:item_remove" => array("title" => "(Remove Item)", "mapping" => "index.php:,data_queries.php:,data_queries.php:edit", "url" => "", "level" => "3"),
"rrdcleaner.php:" => array("title" => "RRD Cleaner", "mapping" => "index.php:", "url" => "rrdcleaner.php", "level" => "1"),
"rrdcleaner.php:actions" => array("title" => "Actions", "mapping" => "index.php:,rrdcleaner.php:", "url" => "rrdcleaner.php?action=actions", "level" => "2"),
"rrdcleaner.php:restart" => array("title" => "List unused Files", "mapping" => "rrdcleaner.php:", "url" => "rrdcleaner.php?action=restart", "level" => "2"),
"utilities.php:" => array("title" => "Utilities", "mapping" => "index.php:", "url" => "utilities.php", "level" => "1"),
"utilities.php:view_poller_cache" => array("title" => "View Poller Cache", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:view_snmp_cache" => array("title" => "View SNMP Cache", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:clear_poller_cache" => array("title" => "View Poller Cache", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:view_logfile" => array("title" => "View Cacti Log File", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:clear_logfile" => array("title" => "Clear Cacti Log File", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:view_user_log" => array("title" => "View User Log File", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:clear_user_log" => array("title" => "Clear User Log File", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:view_tech" => array("title" => "Technical Support", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"utilities.php:view_boost_status" => array("title" => "Boost Status", "mapping" => "index.php:,utilities.php:", "url" => "utilities.php", "level" => "2"),
"settings.php:" => array("title" => "Cacti Settings", "mapping" => "index.php:", "url" => "settings.php", "level" => "1"),
"user_admin.php:" => array("title" => "Users", "mapping" => "index.php:", "url" => "user_admin.php", "level" => "1"),
"user_admin.php:user_edit" => array("title" => "(Edit)", "mapping" => "index.php:,user_admin.php:", "url" => "", "level" => "2"),
"user_admin.php:actions" => array("title" => "(Action)", "mapping" => "index.php:,user_admin.php:", "url" => "", "level" => "2"),
"user_domains.php:" => array("title" => "User Domains", "mapping" => "index.php:", "url" => "user_domains.php", "level" => "1"),
"user_domains.php:edit" => array("title" => "(Edit)", "mapping" => "user_domains.php:,index.php:", "url" => "user_domains.php:edit", "level" => "2"),
"user_group_admin.php:" => array("title" => "User Groups", "mapping" => "index.php:", "url" => "user_group_admin.php", "level" => "1"),
"user_group_admin.php:edit" => array("title" => "(Edit)", "mapping" => "index.php:,user_group_admin.php:", "url" => "", "level" => "2"),
"user_group_admin.php:actions" => array("title" => "(Action)", "mapping" => "index.php:,user_group_admin.php:", "url" => "", "level" => "2"),
"about.php:" => array("title" => "About Cacti", "mapping" => "index.php:", "url" => "about.php", "level" => "1"),
"templates_export.php:" => array("title" => "Export Templates", "mapping" => "index.php:", "url" => "templates_export.php", "level" => "1"),
"templates_export.php:save" => array("title" => "Export Results", "mapping" => "index.php:,templates_export.php:", "url" => "templates_export.php", "level" => "2"),
"templates_import.php:" => array("title" => "Import Templates", "mapping" => "index.php:", "url" => "templates_import.php", "level" => "1"),
);
$nav = api_plugin_hook_function('draw_navigation_text', $nav);
$current_page = basename($_SERVER["PHP_SELF"]);
input_validate_input_regex(get_request_var_request("action"), "^([a-zA-Z0-9_-]+)$");
$current_action = (isset($_REQUEST["action"]) ? $_REQUEST["action"] : "");
/* find the current page in the big array */
if (isset($nav[$current_page . ":" . $current_action])) {
$current_array = $nav{$current_page . ":" . $current_action};
}else{
$current_array = array('mapping' => 'index.php:', 'title' => ucwords(str_replace("_", " ", basename($_SERVER['PHP_SELF'], '.php'))), 'level' => 1);
}
$current_mappings = explode(",", $current_array["mapping"]);
$current_nav = "<ul id='breadcrumbs'>";
$title = "";
/* resolve all mappings to build the navigation string */
for ($i=0; ($i<count($current_mappings)); $i++) {
if (empty($current_mappings[$i])) { continue; }
if ($i == 0) {
/* always use the default for level == 0 */
$url = $nav{$current_mappings[$i]}["url"];
if (basename($url) == 'graph_view.php') continue;
}elseif (isset($nav_level_cache{$i}) && !empty($nav_level_cache{$i}["url"])) {
/* found a match in the url cache for this level */
$url = $nav_level_cache{$i}["url"];
}elseif (!empty($current_array["url"])) {
/* found a default url in the above array */
$url = $current_array["url"];
}else{
/* default to no url */
$url = "";
}
if ($current_mappings[$i] == "?") {
/* '?' tells us to pull title from the cache at this level */
if (isset($nav_level_cache{$i})) {
$current_nav .= (empty($url) ? "" : "<li><a id='nav_$i' href='" . htmlspecialchars($url) . "'>") . htmlspecialchars(resolve_navigation_variables($nav{$nav_level_cache{$i}["id"]}["title"])) . (empty($url) ? "" : "</a>" . (read_config_option('selected_theme') == 'classic' ? ' -> ':'') . "</li>");
$title .= htmlspecialchars(resolve_navigation_variables($nav{$nav_level_cache{$i}["id"]}["title"])) . ' -> ';
}
}else{
/* there is no '?' - pull from the above array */
$current_nav .= (empty($url) ? "" : "<li><a id='nav_$i' href='" . htmlspecialchars($url) . "'>") . htmlspecialchars(resolve_navigation_variables($nav{$current_mappings[$i]}["title"])) . (empty($url) ? "" : "</a>" . (read_config_option('selected_theme') == 'classic' ? ' -> ':'') . "</li>");
$title .= htmlspecialchars(resolve_navigation_variables($nav{$current_mappings[$i]}["title"])) . ' -> ';
}
}
$current_nav .= "<li><a id='nav_$i' href=#>" . htmlspecialchars(resolve_navigation_variables($current_array["title"])) . '</a></li>';
if (isset($_REQUEST['tree_id']) || isset($_REQUEST['leaf_id'])) {
$leaf_sub = '';
$leaf_name = '';
$tree_name = '';
if (isset($_REQUEST['leaf_id']) && $_REQUEST['leaf_id'] != '') {
$leaf = db_fetch_row("SELECT * FROM graph_tree_items WHERE id=" . $_REQUEST['leaf_id']);
if (sizeof($leaf)) {
if ($leaf['host_id'] > 0) {
$leaf_name = db_fetch_cell('SELECT description FROM host WHERE id=' . $leaf['host_id']);
}else{
$leaf_name = $leaf['title'];
}
$tree_name = db_fetch_cell('SELECT name FROM graph_tree WHERE id=' . $leaf['graph_tree_id']);
}else{
$leaf_name = 'Leaf';
}
if (isset($_REQUEST['host_group_data']) && $_REQUEST['host_group_data'] != '') {
$parts = explode(':', $_REQUEST['host_group_data']);
input_validate_input_number($parts[1]);
if ($parts[0] == 'graph_template') {
$leaf_sub = db_fetch_cell('SELECT name FROM graph_templates WHERE id=' . $parts[1]);
}else{
if ($parts[1] > 0) {
$leaf_sub = db_fetch_cell('SELECT name FROM snmp_query WHERE id=' . $parts[1]);
}else{
$leaf_sub = 'Non Query Based';
}
}
}else{
$leaf_sub = '';
}
}else{
$leaf_name = '';
if (isset($_REQUEST['tree_id'])) {
$tree_name = db_fetch_cell('SELECT name FROM graph_tree WHERE id=' . $_REQUEST['tree_id']);
}else{
$tree_name = '';
}
}
$tree_title = $tree_name . ($leaf_name != '' ? ' (' . $leaf_name:'') . ($leaf_sub != '' ? ':' . $leaf_sub . ')':($leaf_name != '' ? ')':''));
$current_nav .= "<li><a id='nav_title' href=#>" . htmlspecialchars($tree_title) . '</a></li></ul>';
}else{
$current_nav .= '</ul>';
$tree_title = '';
}
$title .= htmlspecialchars(resolve_navigation_variables($current_array["title"]) . ' ' . $tree_title);
/* keep a cache for each level we encounter */
$nav_level_cache{$current_array["level"]} = array("id" => $current_page . ":" . $current_action, "url" => get_browser_query_string());
$_SESSION["sess_nav_level_cache"] = $nav_level_cache;
if ($type == "url") {
return $current_nav;
}else{
return $title;
}
}
/* resolve_navigation_variables - substitute any variables contained in the navigation text
@arg $text - the text to substitute in
@returns - the original navigation text with all substitutions made */
function resolve_navigation_variables($text) {
if (preg_match_all("/\|([a-zA-Z0-9_]+)\|/", $text, $matches)) {
for ($i=0; $i<count($matches[1]); $i++) {
switch ($matches[1][$i]) {
case 'current_graph_title':
$text = str_replace("|" . $matches[1][$i] . "|", get_graph_title($_GET["local_graph_id"]), $text);
break;
}
}
}
return $text;
}
/* get_associated_rras - returns a list of all RRAs referenced by a particular graph
@arg $local_graph_id - (int) the ID of the graph to retrieve a list of RRAs for
@returns - (array) an array containing the name and id of each RRA found */
function get_associated_rras($local_graph_id) {
return db_fetch_assoc("select
rra.id,
rra.steps,
rra.rows,
rra.name,
rra.timespan,
data_template_data.rrd_step
from graph_templates_item
LEFT JOIN data_template_rrd ON (graph_templates_item.task_item_id=data_template_rrd.id)
LEFT JOIN data_template_data ON (data_template_rrd.local_data_id=data_template_data.local_data_id)
LEFT JOIN data_template_data_rra ON (data_template_data.id=data_template_data_rra.data_template_data_id)
LEFT JOIN rra ON (data_template_data_rra.rra_id=rra.id)
WHERE graph_templates_item.local_graph_id=$local_graph_id
AND data_template_rrd.local_data_id != 0
group by rra.id
order by rra.timespan");
}
/* get_browser_query_string - returns the full url, including args requested by the browser
@returns - the url requested by the browser */
function get_browser_query_string() {
if (!empty($_SERVER["REQUEST_URI"])) {
return sanitize_uri($_SERVER["REQUEST_URI"]);
}else{
return sanitize_uri(basename($_SERVER["PHP_SELF"]) . (empty($_SERVER["QUERY_STRING"]) ? "" : "?" . $_SERVER["QUERY_STRING"]));
}
}
/* get_hash_graph_template - returns the current unique hash for a graph template
@arg $graph_template_id - (int) the ID of the graph template to return a hash for
@arg $sub_type (optional) return the hash for a particlar sub-type of this type
@returns - a 128-bit, hexadecimal hash */
function get_hash_graph_template($graph_template_id, $sub_type = "graph_template") {
if ($sub_type == "graph_template") {
$hash = db_fetch_cell("SELECT hash FROM graph_templates WHERE id=$graph_template_id");
}elseif ($sub_type == "graph_template_item") {
$hash = db_fetch_cell("SELECT hash FROM graph_templates_item WHERE id=$graph_template_id");
}elseif ($sub_type == "graph_template_input") {
$hash = db_fetch_cell("SELECT hash FROM graph_template_input WHERE id=$graph_template_id");
}
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_data_template - returns the current unique hash for a data template
@arg $graph_template_id - (int) the ID of the data template to return a hash for
@arg $sub_type (optional) return the hash for a particlar sub-type of this type
@returns - a 128-bit, hexadecimal hash */
function get_hash_data_template($data_template_id, $sub_type = "data_template") {
if ($sub_type == "data_template") {
$hash = db_fetch_cell("SELECT hash FROM data_template WHERE id=$data_template_id");
}elseif ($sub_type == "data_template_item") {
$hash = db_fetch_cell("SELECT hash FROM data_template_rrd WHERE id=$data_template_id");
}
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_data_input - returns the current unique hash for a data input method
@arg $graph_template_id - (int) the ID of the data input method to return a hash for
@arg $sub_type (optional) return the hash for a particlar sub-type of this type
@returns - a 128-bit, hexadecimal hash */
function get_hash_data_input($data_input_id, $sub_type = "data_input_method") {
if ($sub_type == "data_input_method") {
$hash = db_fetch_cell("SELECT hash FROM data_input WHERE id=$data_input_id");
}elseif ($sub_type == "data_input_field") {
$hash = db_fetch_cell("SELECT hash FROM data_input_fields WHERE id=$data_input_id");
}
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_cdef - returns the current unique hash for a cdef
@arg $graph_template_id - (int) the ID of the cdef to return a hash for
@arg $sub_type (optional) return the hash for a particlar sub-type of this type
@returns - a 128-bit, hexadecimal hash */
function get_hash_cdef($cdef_id, $sub_type = "cdef") {
if ($sub_type == "cdef") {
$hash = db_fetch_cell("SELECT hash FROM cdef WHERE id=$cdef_id");
}elseif ($sub_type == "cdef_item") {
$hash = db_fetch_cell("SELECT hash FROM cdef_items WHERE id=$cdef_id");
}
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_gprint - returns the current unique hash for a gprint preset
@arg $graph_template_id - (int) the ID of the gprint preset to return a hash for
@returns - a 128-bit, hexadecimal hash */
function get_hash_gprint($gprint_id) {
$hash = db_fetch_cell("SELECT hash FROM graph_templates_gprint WHERE id=$gprint_id");
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_host_template - returns the current unique hash for a gprint preset
@arg $host_template_id - (int) the ID of the host template to return a hash for
@returns - a 128-bit, hexadecimal hash */
function get_hash_host_template($host_template_id) {
$hash = db_fetch_cell("SELECT hash FROM host_template WHERE id=$host_template_id");
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_data_query - returns the current unique hash for a data query
@arg $graph_template_id - (int) the ID of the data query to return a hash for
@arg $sub_type (optional) return the hash for a particlar sub-type of this type
@returns - a 128-bit, hexadecimal hash */
function get_hash_data_query($data_query_id, $sub_type = "data_query") {
if ($sub_type == "data_query") {
$hash = db_fetch_cell("SELECT hash FROM snmp_query WHERE id=$data_query_id");
}elseif ($sub_type == "data_query_graph") {
$hash = db_fetch_cell("SELECT hash FROM snmp_query_graph WHERE id=$data_query_id");
}elseif ($sub_type == "data_query_sv_data_source") {
$hash = db_fetch_cell("SELECT hash FROM snmp_query_graph_rrd_sv WHERE id=$data_query_id");
}elseif ($sub_type == "data_query_sv_graph") {
$hash = db_fetch_cell("SELECT hash FROM snmp_query_graph_sv WHERE id=$data_query_id");
}
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_round_robin_archive - returns the current unique hash for a round robin archive
@arg $rra_id - (int) the ID of the round robin archive to return a hash for
@returns - a 128-bit, hexadecimal hash */
function get_hash_round_robin_archive($rra_id) {
$hash = db_fetch_cell("SELECT hash FROM rra WHERE id=$rra_id");
if (preg_match("/[a-fA-F0-9]{32}/", $hash)) {
return $hash;
}else{
return generate_hash();
}
}
/* get_hash_version - returns the item type and cacti version in a hash format
@arg $type - the type of item to represent ('graph_template','data_template',
'data_input_method','cdef','gprint_preset','data_query','host_template')
@returns - a 24-bit hexadecimal hash (8-bits for type, 16-bits for version) */
function get_hash_version($type) {
global $hash_type_codes, $hash_version_codes, $config;
return $hash_type_codes[$type] . $hash_version_codes{$config["cacti_version"]};
}
/* generate_hash - generates a new unique hash
@returns - a 128-bit, hexadecimal hash */
function generate_hash() {
global $config;
return md5(session_id() . microtime() . rand(0,1000));
}
/* debug_log_insert - inserts a line of text into the debug log
@arg $type - the 'category' or type of debug message
@arg $text - the actual debug message */
function debug_log_insert($type, $text) {
if (!isset($_SESSION["debug_log"][$type])) {
$_SESSION["debug_log"][$type] = array();
}
array_push($_SESSION["debug_log"][$type], $text);
}
/* debug_log_clear - clears the debug log for a particular category
@arg $type - the 'category' to clear the debug log for. omitting this argument
implies all categories */
function debug_log_clear($type = "") {
if ($type == "") {
kill_session_var("debug_log");
}else{
if (isset($_SESSION["debug_log"])) {
unset($_SESSION["debug_log"][$type]);
}
}
}
/* debug_log_return - returns the debug log for a particular category
@arg $type - the 'category' to return the debug log for.
@returns - the full debug log for a particular category */
function debug_log_return($type) {
$log_text = "";
if ($type == "new_graphs") {
if (isset($_SESSION["debug_log"][$type])) {
for ($i=0; $i<count($_SESSION["debug_log"][$type]); $i++) {
$log_text .= "<li>" . $_SESSION["debug_log"][$type][$i] . "</li>";
}
}
}else{
if (isset($_SESSION["debug_log"][$type])) {
for ($i=0; $i<count($_SESSION["debug_log"][$type]); $i++) {
$log_text .= "+ " . $_SESSION["debug_log"][$type][$i] . "<br>";
}
}
}
return $log_text;
}
/* sanitize_search_string - cleans up a search string submitted by the user to be passed
to the database. NOTE: some of the code for this function came from the phpBB project.
@arg $string - the original raw search string
@returns - the sanitized search string */
function sanitize_search_string($string) {
static $drop_char_match = array('^', '$', '<', '>', '`', '\'', '"', '|', ',', '?', '+', '[', ']', '{', '}', '#', ';', '!', '=', '*');
static $drop_char_replace = array(' ', ' ', ' ', ' ', '', '', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
/* Replace line endings by a space */
$string = preg_replace('/[\n\r]/is', ' ', $string);
/* HTML entities like &nbsp; */
$string = preg_replace('/\b&[a-z]+;\b/', ' ', $string);
/* Remove URL's */
$string = preg_replace('/\b[a-z0-9]+:\/\/[a-z0-9\.\-]+(\/[a-z0-9\?\.%_\-\+=&\/]+)?/', ' ', $string);
/* Filter out strange characters like ^, $, &, change "it's" to "its" */
for($i = 0; $i < count($drop_char_match); $i++) {
$string = str_replace($drop_char_match[$i], $drop_char_replace[$i], $string);
}
return $string;
}
/** cleans up a URI, e.g. from REQUEST_URI and/or QUERY_STRING
* in case of XSS attac, expect the result to be broken
* we do NOT sanitize in a way, that attacs are converted to valid HTML
* it is ok, when the result is broken but the application stays alive
* @arg string $uri - the uri to be sanitized
* @returns string - the sanitized uri
*/
function sanitize_uri($uri) {
static $drop_char_match = array('^', '$', '<', '>', '`', '\'', '"', '|', '+', '[', ']', '{', '}', ';', '!');
static $drop_char_replace = array( '', '', '', '', '', '', '', '', '', '', '', '', '', '', '');
return str_replace($drop_char_match, $drop_char_replace, urldecode($uri));
}
/** cleans up a CDEF/VDEF string
* the CDEF/VDEF must have passed all magic string replacements beforehand
* @arg string $cdef - the CDEF/VDEF to be sanitized
* @returns string - the sanitized CDEF/VDEF
*/
function sanitize_cdef($cdef) {
static $drop_char_match = array('^', '$', '<', '>', '`', '\'', '"', '|', '[', ']', '{', '}', ';', '!');
static $drop_char_replace = array( '', '', '', '', '', '', '', '', '', '', '', '', '', '');
return str_replace($drop_char_match, $drop_char_replace, $cdef);
}
function cacti_escapeshellcmd($string) {
global $config;
if ($config["cacti_server_os"] == "unix") {
return escapeshellcmd($string);
}else{
$replacements = "#&;`|*?<>^()[]{}$\\";
for ($i=0; $i < strlen($replacements); $i++) {
$string = str_replace($replacements[$i], " ", $string);
}
return $string;
}
}
/**
* mimics escapeshellarg, even for windows
* @param $string - the string to be escaped
* @param $quote - true: do NOT remove quotes from result; false: do remove quotes
* @return - the escaped [quoted|unquoted] string
*/
function cacti_escapeshellarg($string, $quote=true) {
global $config;
/* we must use an apostrophe to escape community names under Unix in case the user uses
characters that the shell might interpret. the ucd-snmp binaries on Windows flip out when
you do this, but are perfectly happy with a quotation mark. */
if ($config["cacti_server_os"] == "unix") {
$string = escapeshellarg($string);
if ( $quote ) {
return $string;
} else {
# remove first and last char
return substr($string, 1, (strlen($string)-2));
}
}else{
/* escapeshellarg takes care of different quotation for both linux and windows,
* but unfortunately, it blanks out percent signs
* we want to keep them, e.g. for GPRINT format strings
* so we need to create our own escapeshellarg
* on windows, command injection requires to close any open quotation first
* so we have to escape any quotation here */
if (substr_count($string, CACTI_ESCAPE_CHARACTER)) {
$string = str_replace(CACTI_ESCAPE_CHARACTER, "\\" . CACTI_ESCAPE_CHARACTER, $string);
}
/* ... before we add our own quotation */
if ( $quote ) {
return CACTI_ESCAPE_CHARACTER . $string . CACTI_ESCAPE_CHARACTER;
} else {
return $string;
}
}
}
function bottom_footer() {
global $config;
if (!isset($_REQUEST['header']) || $_REQUEST['header'] == false) {
include($config['base_path'] . "/include/bottom_footer.php");
}else{
?>
<script type='text/javascript'>
var message = "<?php print display_output_messages();?>";
if (message != '') {
$('#message_container').html(message).show().delay(2000).slideUp('fast');
window.scrollTo(0,0);
}
</script>
<?php
}
}
function top_header() {
global $config;
if (!isset($_REQUEST['header']) || $_REQUEST['header'] == false) {
include($config['base_path'] . "/include/top_header.php");
}
}
function top_graph_header() {
global $config;
if (!isset($_REQUEST['header']) || $_REQUEST['header'] == false) {
include($config['base_path'] . "/include/top_graph_header.php");
}
}
function general_header() {
global $config;
if (!isset($_REQUEST['header']) || $_REQUEST['header'] == false) {
include($config['base_path'] . "/include/top_general_header.php");
}
}
function send_mail($to, $from, $subject, $message, $filename = '', $headers = '', $html = false) {
global $config;
include_once($config["base_path"] . "/lib/PHPMailer/PHPMailerAutoload.php");
$message = str_replace('<SUBJECT>', $subject, $message);
$message = str_replace('<TO>', $to, $message);
$message = str_replace('<FROM>', $from, $message);
// Create the PHPMailer instance
$mail = new PHPMailer;
// Set a reasonable timeout of 5 seconds
$timeout = read_config_option('settings_smtp_timeout');
if (empty($timeout) || $timeout < 0 || $timeout > 300) {
$mail->Timeout = 5;
}else{
$mail->Timeout = $timeout;
}
// Set the subject
$mail->Subject = $subject;
$how = read_config_option("settings_how");
if ($how < 0 || $how > 2) {
$how = 0;
}
if ($how == 0) {
$mail->isMail();
} else if ($how == 1) {
$mail->Sendmail = read_config_option('settings_sendmail_path');
$mail->isSendmail();
} else if ($how == 2) {
$mail->isSMTP();
$mail->Host = read_config_option("settings_smtp_host");
$mail->Port = read_config_option("settings_smtp_port");
$mail->Username = read_config_option("settings_smtp_username");
$mail->Password = read_config_option("settings_smtp_password");
if ($mail->Username != '') {
$mail->SMTPAuth = true;
}
// Set a reasonable timeout of 5 seconds
$timeout = read_config_option('settings_smtp_timeout');
if (empty($timeout) || $timeout < 0 || $timeout > 300) {
$mail->Timeout = 5;
}else{
$mail->Timeout = $timeout;
}
$secure = read_config_option('settings_smtp_secure');
if (!empty($secure) && $secure != 'none') {
$smtp->SMTPSecure = $secure;
if (substr_count($mail->Host, ':') == 0) {
$mail->Host = $secure . '://' . $mail->Host;
}
}
}
// Set the from information
$fromname = '';
if ($from == '') {
$from = read_config_option('settings_from_email');
$fromname = read_config_option('settings_from_name');
if (isset($_SERVER['HOSTNAME'])) {
$from = 'Cacti@' . $_SERVER['HOSTNAME'];
} else {
$from = 'Cacti@cacti.net';
}
if ($fromname == "") {
$fromname = "Cacti";
}
}
$mail->setFrom($from, $fromname);
// Set the to informaiotn
if ($to == '') {
return "Mailer Error: No <b>TO</b> address set!!<br>If using the <i>Test Mail</i> link, please set the <b>Alert e-mail</b> setting.";
}
$to = explode(',', $to);
foreach($to as $t) {
$t = trim($t);
if ($t != '') {
$mail->addAddress($t);
}
}
// Set the wordwrap limits
$wordwrap = read_config_option("settings_wordwrap");
if ($wordwrap == '')
$wordwrap = 76;
if ($wordwrap > 9999)
$wordwrap = 9999;
if ($wordwrap < 0)
$wordwrap = 76;
$mail->WordWrap = $wordwrap;
$mail->setWordWrap();
$i = 0;
// Handle Graph Attachments
if (is_array($filename) && sizeof($filename) && strstr($message, '<GRAPH>') !==0) {
foreach($filename as $val) {
$graph_data_array = array("output_flag"=> RRDTOOL_OUTPUT_STDOUT);
$data = rrdtool_function_graph($val['local_graph_id'], $val['rra_id'], $graph_data_array);
if ($data != "") {
$cid = getmypid() . '_' . $i . '@' . 'localhost';
$mail->addStringEmbededImage($data, $cid, $val['filename'].'.png', '8bit', 'image/png');
$message = str_replace('<GRAPH>', "<br><br><img src='cid:$cid'>", $message);
} else {
$message = str_replace('<GRAPH>', "<br><img src='" . $val['file'] . "'><br>Could not open!<br>" . $val['file'], $message);
}
$i++;
}
}
// Set both html and non-html bodies
$text = array('text' => '', 'html' => '');
if ($filename == '' && $html == false) {
$message = str_replace('<br>', "\n", $message);
$message = str_replace('<BR>', "\n", $message);
$message = str_replace('</BR>', "\n", $message);
$text['text'] = strip_tags($message);
$mail->isHTML(false);
$mail->Body = $text['text'];
$mail->AltBody = $text['text'];
} else {
$text['html'] = $message . '<br>';
$text['text'] = strip_tags(str_replace('<br>', "\n", $message));
$mail->isHTML(true);
$mail->Body = $text['html'];
$mail->AltBody = $text['text'];
}
if ($mail->send()) {
return '';
}else{
return $mail->ErrorInfo;
}
}
function ping_mail_server($host, $port, $user, $password, $timeout = 5, $secure = 'none') {
global $config;
include_once($config["base_path"] . "/lib/PHPMailer/PHPMailerAutoload.php");
//Create a new SMTP instance
$smtp = new SMTP;
if ($secure != 'tls' && $secure != 'none') {
$smtp->SMTPSecure = $secure;
if (substr_count($host, ':') == 0) {
$host = $secure . '://' . $host;
}
}
//Enable connection-level debug output
$smtp->do_debug = 0;
//$smtp->do_debug = SMTP::DEBUG_LOWLEVEL;
$results = true;
try {
//Connect to an SMTP server
if ($smtp->connect($host, $port, $timeout)) {
//Say hello
if ($smtp->hello(gethostbyname(gethostname()))) { //Put your host name in here
//Authenticate
if ($smtp->authenticate($user, $password)) {
$results = true;
} else {
throw new Exception('Authentication failed: ' . $smtp->getLastReply());
}
} else {
throw new Exception('HELO failed: '. $smtp->getLastReply());
}
} else {
throw new Exception('Connect failed');
}
} catch (Exception $e) {
$results = 'SMTP error: ' . $e->getMessage();
}
//Whatever happened, close the connection.
$smtp->quit(true);
return $results;
}
function email_test() {
global $config;
$message = "This is a test message generated from Cacti. This message was sent to test the configuration of your Mail Settings.<br><br>";
$message .= "Your email settings are currently set as follows<br><br>";
$message .= "<b>Method</b>: ";
print "Checking Configuration...<br>";
$ping_results = true;
$how = read_config_option("settings_how");
if ($how < 0 || $how > 2)
$how = 0;
if ($how == 0) {
$mail = "PHP's Mailer Class";
} else if ($how == 1) {
$mail = "Sendmail<br><b>Sendmail Path</b>: ";
$sendmail = read_config_option("settings_sendmail_path");
$mail .= $sendmail;
} else if ($how == 2) {
print "Method: SMTP<br>";
$mail = "SMTP<br>";
$smtp_host = read_config_option("settings_smtp_host");
$smtp_port = read_config_option("settings_smtp_port");
$smtp_username = read_config_option("settings_smtp_username");
$smtp_password = read_config_option("settings_smtp_password");
$smtp_password = read_config_option("settings_smtp_password");
$smtp_secure = read_config_option("settings_smtp_secure");
$smtp_timeout = read_config_option("settings_smtp_timeout");
$mail .= "<b>Host</b>: $smtp_host<br>";
$mail .= "<b>Port</b>: $smtp_port<br>";
if ($smtp_username != '' && $smtp_password != '') {
$mail .= "<b>Authentication</b>: true<br>";
$mail .= "<b>Username</b>: $smtp_username<br>";
$mail .= "<b>Password</b>: (Not Shown for Security Reasons)<br>";
$mail .= "<b>Security</b>: $smtp_secure<br>";
} else {
$mail .= "<b>Authentication</b>: false<br>";
}
$ping_results = ping_mail_server($smtp_host, $smtp_port, $smtp_username, $smtp_password, $smtp_timeout, $smtp_secure);
print "Ping Results: " . ($ping_results == 1 ? 'Success':$ping_results) . "<br>";
if ($ping_results != 1) {
$mail .= '<b>Ping Results</b>: ' . $ping_results . '<br>';
}else{
$mail .= '<b>Ping Results</b>: Success<br>';
}
}
$message .= $mail;
$message .= "<br>";
$errors = '';
if ($ping_results == 1) {
print "Creating Message Text...<br><br>";
print "<center><table width='95%' cellpadding=1 cellspacing=0 bgcolor=black><tr><td>";
print "<table width='100%' bgcolor=white><tr><td>$message</td><tr></table></table></center><br>";
print "Sending Message...<br><br>";
$global_alert_address = read_config_option("settings_test_email");
$errors = send_mail($global_alert_address, '', "Cacti Test Message", $message, '', '', true);
if ($errors == '') {
$errors = "Success!";
}
}else{
print "Message Not Sent due to ping failure.<br><br>";
}
print "<center><table width='95%' cellpadding=1 cellspacing=0 bgcolor=black><tr><td>";
print "<table width='100%' bgcolor=white><tr><td>$errors</td><tr></table></table></center>";
}
/* gethostbyaddr_wtimeout - This function provides a good method of performing
a rapid lookup of a DNS entry for a host so long as you don't have to look far.
*/
function get_dns_from_ip ($ip, $dns, $timeout = 1000) {
/* random transaction number (for routers etc to get the reply back) */
$data = rand(10, 99);
/* trim it to 2 bytes */
$data = substr($data, 0, 2);
/* create request header */
$data .= "\1\0\0\1\0\0\0\0\0\0";
/* split IP into octets */
$octets = explode(".", $ip);
/* perform a quick error check */
if (count($octets) != 4) return "ERROR";
/* needs a byte to indicate the length of each segment of the request */
for ($x=3; $x>=0; $x--) {
switch (strlen($octets[$x])) {
case 1: // 1 byte long segment
$data .= "\1"; break;
case 2: // 2 byte long segment
$data .= "\2"; break;
case 3: // 3 byte long segment
$data .= "\3"; break;
default: // segment is too big, invalid IP
return "ERROR";
}
/* and the segment itself */
$data .= $octets[$x];
}
/* and the final bit of the request */
$data .= "\7in-addr\4arpa\0\0\x0C\0\1";
/* create UDP socket */
$handle = @fsockopen("udp://$dns", 53);
@stream_set_timeout($handle, floor($timeout/1000), ($timeout*1000)%1000000);
@stream_set_blocking($handle, 1);
/* send our request (and store request size so we can cheat later) */
$requestsize = @fwrite($handle, $data);
/* get the response */
$response = @fread($handle, 1000);
/* check to see if it timed out */
$info = @stream_get_meta_data($handle);
/* close the socket */
@fclose($handle);
if ($info["timed_out"]) {
return "timed_out";
}
/* more error handling */
if ($response == "") { return $ip; }
/* parse the response and find the response type */
$type = @unpack("s", substr($response, $requestsize+2));
if (isset($type[1]) && $type[1] == 0x0C00) {
/* set up our variables */
$host = "";
$len = 0;
/* set our pointer at the beginning of the hostname uses the request
size from earlier rather than work it out.
*/
$position = $requestsize + 12;
/* reconstruct the hostname */
do {
/* get segment size */
$len = unpack("c", substr($response, $position));
/* null terminated string, so length 0 = finished */
if ($len[1] == 0) {
/* return the hostname, without the trailing '.' */
return strtoupper(substr($host, 0, strlen($host) -1));
}
/* add the next segment to our host */
$host .= substr($response, $position+1, $len[1]) . ".";
/* move pointer on to the next segment */
$position += $len[1] + 1;
} while ($len != 0);
/* error - return the hostname we constructed (without the . on the end) */
return strtoupper($ip);
}
/* error - return the hostname */
return strtoupper($ip);
}
function poller_maintenance () {
global $config;
$command_string = trim(read_config_option("path_php_binary"));
// If its not set, just assume its in the path
if (trim($command_string) == '') {
$command_string = "php";
}
$extra_args = ' -q ' . $config['base_path'] . '/poller_maintenance.php';
exec_background($command_string, $extra_args);
}