mirror of
https://github.com/Cacti/cacti.git
synced 2026-11-08 21:16:17 +09:00
Ian Berry
2a2f753f10
git-svn-id: svn+ssh://repo.cacti.net/var/data/svnroot/cacti/trunk/cacti@1833 860744bd-22fc-0310-8c96-e9fe5004b5ca
247 lines
11 KiB
PHP
247 lines
11 KiB
PHP
<?php
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/*
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+-------------------------------------------------------------------------+
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| Copyright (C) 2004 Ian Berry |
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| This program is free software; you can redistribute it and/or |
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| modify it under the terms of the GNU General Public License |
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| as published by the Free Software Foundation; either version 2 |
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| of the License, or (at your option) any later version. |
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| This program is distributed in the hope that it will be useful,
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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+-------------------------------------------------------------------------+
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| cacti: a php-based graphing solution |
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+-------------------------------------------------------------------------+
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| Most of this code has been designed, written and is maintained by |
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| Ian Berry. See about.php for specific developer credit. Any questions |
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| or comments regarding this code should be directed to: |
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| - iberry@raxnet.net |
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+-------------------------------------------------------------------------+
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| - raXnet - http://www.raxnet.net/ |
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+-------------------------------------------------------------------------+
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*/
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/* exec_poll - executes a command and returns its output
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@arg $command - the command to execute
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@returns - the output of $command after execution */
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function exec_poll($command) {
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return `$command`;
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}
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/* exec_poll_php - sends a command to the php script server and returns the
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output
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@arg $command - the command to send to the php script server
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@arg $using_proc_function - whether or not this version of php is making use
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of the proc_open() and proc_close() functions (php 4.3+)
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@arg $pipes - the array of r/w pipes returned from proc_open()
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@arg $proc_fd - the file descriptor returned from proc_open()
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@returns - the output of $command after execution against the php script
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server */
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function exec_poll_php($command, $using_proc_function, $pipes, $proc_fd) {
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/* execute using php process */
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if ($using_proc_function == 1) {
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if (is_resource($proc_fd)) {
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/* $pipes now looks like this:
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* 0 => writeable handle connected to child stdin
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* 1 => readable handle connected to child stdout
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* 2 => any error output will be sent to child stderr */
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/* send command to the php server */
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fwrite($pipes[0], $command . "\r\n");
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/* get result from server */
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$output = fgets($pipes[1], 1024);
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if (substr_count($output, "ERROR") > 0) {
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$output = "U";
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}
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}
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/* execute the old fashion way */
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}else{
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$command = read_config_option("path_php_binary") . " " . $command;
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$output = `$command`;
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}
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return $output;
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}
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/* exec_background - executes a program in the background so that php can continue
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to execute code in the foreground
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@arg $filename - the full pathname to the script to execute
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@arg $args - any additional arguments that must be passed onto the executable */
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function exec_background($filename, $args = "") {
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global $config;
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if (read_config_option("log_verbosity") == POLLER_VERBOSITY_DEBUG) {
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cacti_log("POLLER: About to Spawn a Remote Process\n");
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}
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if (file_exists($filename)) {
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if ($config["cacti_server_os"] == "win32") {
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pclose(popen("start \"Cactiplus\" /I /B \"" . $filename . "\" " . $args, "r"));
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}else{
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exec($filename . " " . $args . " > /dev/null &");
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}
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}
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}
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/* update_reindex_cache - builds a cache that is used by the poller to determine if the
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indexes for a particular data query/host have changed
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@arg $host_id - the id of the host to which the data query belongs
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@arg $data_query_id - the id of the data query to rebuild the reindex cache for */
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function update_reindex_cache($host_id, $data_query_id) {
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global $config;
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include_once($config["library_path"] . "/data_query.php");
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include_once($config["library_path"] . "/snmp.php");
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/* will be used to keep track of sql statements to execute later on */
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$recache_stack = array();
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$host = db_fetch_row("select hostname,snmp_community,snmp_version,snmp_username,snmp_password,snmp_port,snmp_timeout from host where id=$host_id");
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$data_query = db_fetch_row("select reindex_method,sort_field from host_snmp_query where host_id=$host_id and snmp_query_id=$data_query_id");
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$data_query_type = db_fetch_cell("select data_input.type_id from data_input,snmp_query where data_input.id=snmp_query.data_input_id and snmp_query.id=$data_query_id");
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$data_query_xml = get_data_query_array($data_query_id);
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switch ($data_query["reindex_method"]) {
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case DATA_QUERY_AUTOINDEX_NONE:
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break;
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case DATA_QUERY_AUTOINDEX_BACKWARDS_UPTIME:
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/* the uptime backwards method requires snmp, so make sure snmp is actually enabled
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* on this device first */
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if ($host["snmp_community"] != "") {
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$assert_value = db_fetch_cell("select assert_value from poller_reindex where host_id=$host_id and data_query_id=$data_query_id and arg1='.1.3.6.1.2.1.1.3.0'");
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/* default uptime */
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if (empty($assert_value)) {
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$assert_value = cacti_snmp_get($host["hostname"], $host["snmp_community"], ".1.3.6.1.2.1.1.3.0", $host["snmp_version"], $host["snmp_username"], $host["snmp_password"], $host["snmp_port"], $host["snmp_timeout"]);
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}
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array_push($recache_stack, "insert into poller_reindex (host_id,data_query_id,action,op,assert_value,arg1) values ($host_id,$data_query_id,0,'<','$assert_value','.1.3.6.1.2.1.1.3.0')");
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}
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break;
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case DATA_QUERY_AUTOINDEX_INDEX_NUM_CHANGE:
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/* this method requires that some command/oid can be used to determine the
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* current number of indexes in the data query */
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$assert_value = sizeof(db_fetch_assoc("select snmp_index from host_snmp_cache where host_id=$host_id and snmp_query_id=$data_query_id group by snmp_index"));
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if ($data_query_type == DATA_INPUT_TYPE_SNMP_QUERY) {
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if (isset($data_query_xml["oid_num_indexes"])) {
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array_push($recache_stack, "insert into poller_reindex (host_id,data_query_id,action,op,assert_value,arg1) values ($host_id,$data_query_id,0,'=','$assert_value','" . $data_query_xml["oid_num_indexes"] . "')");
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}
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}else if ($data_query_type == DATA_INPUT_TYPE_SCRIPT_QUERY) {
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if (isset($data_query_xml["arg_num_indexes"])) {
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array_push($recache_stack, "insert into poller_reindex (host_id,data_query_id,action,op,assert_value,arg1) values ($host_id,$data_query_id,1,'=','$assert_value','" . get_script_query_path((isset($data_query_xml["arg_prepend"]) ? $data_query_xml["arg_prepend"] . " ": "") . $data_query_xml["arg_num_indexes"], $data_query_xml["script_path"], $host_id) . "')");
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}
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}
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break;
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case DATA_QUERY_AUTOINDEX_FIELD_VERIFICATION:
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$primary_indexes = db_fetch_assoc("select snmp_index,oid,field_value from host_snmp_cache where host_id=$host_id and snmp_query_id=$data_query_id and field_name='" . $data_query["sort_field"] . "'");
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if (sizeof($primary_indexes) > 0) {
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foreach ($primary_indexes as $index) {
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$assert_value = $index["field_value"];
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if ($data_query_type == DATA_INPUT_TYPE_SNMP_QUERY) {
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array_push($recache_stack, "insert into poller_reindex (host_id,data_query_id,action,op,assert_value,arg1) values ($host_id,$data_query_id,0,'=','$assert_value','" . $data_query_xml["fields"]{$data_query["sort_field"]}["oid"] . "." . $index["snmp_index"] . "')");
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}else if ($data_query_type == DATA_INPUT_TYPE_SCRIPT_QUERY) {
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array_push($recache_stack, "insert into poller_reindex (host_id,data_query_id,action,op,assert_value,arg1) values ($host_id,$data_query_id,1,'=','$assert_value','" . get_script_query_path((isset($data_query_xml["arg_prepend"]) ? $data_query_xml["arg_prepend"] . " ": "") . $data_query_xml["arg_get"] . " " . $data_query_xml["fields"]{$data_query["sort_field"]}["query_name"] . " " . $index["snmp_index"], $data_query_xml["script_path"], $host_id) . "')");
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}
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}
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}
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break;
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}
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/* save the delete for last since we need to reference this table in the code above */
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db_execute("delete from poller_reindex where host_id=$host_id and data_query_id=$data_query_id");
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for ($i=0; $i<count($recache_stack); $i++) {
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db_execute($recache_stack[$i]);
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}
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}
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/* process_poller_output - grabs data from the 'poller_output' table and feeds the *completed*
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results to RRDTool for processing
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@arg $rrdtool_pipe - the array of pipes containing the file descriptor for rrdtool */
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function process_poller_output($rrdtool_pipe) {
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global $config;
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include_once($config["library_path"] . "/rrd.php");
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/* create/update the rrd files */
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$results = db_fetch_assoc("select
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poller_output.output,
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poller_output.time,
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poller_output.local_data_id,
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poller_item.rrd_path,
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poller_item.rrd_name,
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poller_item.rrd_num
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from poller_output,poller_item
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where (poller_output.local_data_id=poller_item.local_data_id and poller_output.rrd_name=poller_item.rrd_name)");
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if (sizeof($results) > 0) {
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/* create an array keyed off of each .rrd file */
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foreach ($results as $item) {
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$value = rtrim(strtr(strtr($item["output"],'\r',''),'\n',''));
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$rrd_update_array{$item["rrd_path"]}["time"] = strtotime($item["time"]);
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$rrd_update_array{$item["rrd_path"]}["local_data_id"] = $item["local_data_id"];
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/* single one value output */
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if ((is_numeric($value)) || ($value == "U")) {
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$rrd_update_array{$item["rrd_path"]}["items"]{$item["rrd_name"]} = $value;
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/* multiple value output */
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}else{
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$values = explode(" ", $value);
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$rrd_field_names = array_rekey(db_fetch_assoc("select
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data_template_rrd.data_source_name,
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data_input_fields.data_name
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from data_template_rrd,data_input_fields
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where data_template_rrd.data_input_field_id=data_input_fields.id
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and data_template_rrd.local_data_id=" . $item["local_data_id"]), "data_name", "data_source_name");
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for ($i=0; $i<count($values); $i++) {
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if (preg_match("/^([a-zA-Z0-9_-]+):(\d+(\.\d+)?)$/", $values[$i], $matches)) {
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if (isset($rrd_field_names{$matches[1]})) {
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if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_DEBUG) {
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cacti_log("Parsed MULTI output field '" . $matches[0] . "' [map " . $matches[1] . "->" . $rrd_field_names{$matches[1]} . "]" , true);
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}
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$rrd_update_array{$item["rrd_path"]}["items"]{$rrd_field_names{$matches[1]}} = $matches[2];
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}
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}
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}
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}
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/* fallback values */
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if ((!isset($rrd_update_array{$item["rrd_path"]}["items"])) && ($item["rrd_name"] != "")) {
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$rrd_update_array{$item["rrd_path"]}["items"]{$item["rrd_name"]} = "U";
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}else if ((!isset($rrd_update_array{$item["rrd_path"]}["items"])) && ($item["rrd_name"] == "")) {
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unset($rrd_update_array{$item["rrd_path"]});
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}
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}
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/* make sure each .rrd file has complete data */
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reset($results);
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foreach ($results as $item) {
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if (isset($rrd_update_array{$item["rrd_path"]})) {
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if ($item["rrd_num"] <= sizeof($rrd_update_array{$item["rrd_path"]}["items"])) {
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db_execute("delete from poller_output where local_data_id='" . $item["local_data_id"] . "' and rrd_name='" . $item["rrd_name"] . "' and time='" . $item["time"] . "'");
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}else{
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unset($rrd_update_array{$item["rrd_path"]});
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}
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}
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}
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rrdtool_function_update($rrd_update_array, $rrdtool_pipe);
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}
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}
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?>
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