mirror of
https://github.com/librenms/librenms.git
synced 2024-09-21 18:38:25 +00:00
572 lines
23 KiB
PHP
Executable File
572 lines
23 KiB
PHP
Executable File
#!/usr/bin/env php
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<?php
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/*
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* LibreNMS
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*
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* Copyright (c) 2014 Neil Lathwood <https://github.com/laf/ http://www.lathwood.co.uk/fa>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version. Please see LICENSE.txt at the top level of
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* the source code distribution for details.
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*/
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chdir(__DIR__); // cwd to the directory containing this script
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require_once 'includes/common.php';
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$options = getopt('m:h::');
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if (isset($options['h'])) {
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echo
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"\n Validate setup tool
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Usage: ./validate.php [-m <module>] [-h]
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-h This help section.
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-m Any sub modules you want to run, comma separated:
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- mail: this will test your email settings (uses default_mail option even if default_only is not set).
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- dist-poller: this will test for the install running as a distributed poller.
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- rrdcheck: this will check to see if your rrd files are corrupt
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Example: ./validate.php -m mail.
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"
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;
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exit;
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}
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// critical config.php checks
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if (!file_exists('config.php')) {
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print_fail('config.php does not exist, please copy config.php.default to config.php');
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exit;
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}
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$config_failed = false;
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$syntax_check = `php -ln config.php`;
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if (!str_contains($syntax_check, 'No syntax errors detected')) {
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print_fail('Syntax error in config.php');
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echo $syntax_check;
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$config_failed = true;
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}
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$first_line = rtrim(`head -n1 config.php`);
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if (!starts_with($first_line, '<?php')) {
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print_fail("config.php doesn't start with a <?php - please fix this ($first_line)");
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$config_failed = true;
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}
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if (str_contains(`tail config.php`, '?>')) {
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print_fail("Remove the ?> at the end of config.php");
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$config_failed = true;
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}
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if ($config_failed) {
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exit;
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}
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$init_modules = array();
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require 'includes/init.php';
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// make sure install_dir is set correctly, or the next includes will fail
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if (!file_exists($config['install_dir'].'/config.php')) {
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print_fail('$config[\'install_dir\'] is not set correctly. It should probably be set to: ' . getcwd());
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exit;
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}
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$git_found = check_git_exists();
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if ($git_found !== true) {
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print_warn('Unable to locate git. This should probably be installed.');
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}
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$versions = version_info();
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$cur_sha = $versions['local_sha'];
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echo <<< EOF
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==========================================================
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Component | Version
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--------- | -------
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LibreNMS | {$cur_sha}
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DB Schema | {$versions['db_schema']}
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PHP | {$versions['php_ver']}
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MySQL | {$versions['mysql_ver']}
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RRDTool | {$versions['rrdtool_ver']}
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SNMP | {$versions['netsnmp_ver']}
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==========================================================
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\n
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EOF;
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// Check we are running this as the root user
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if (function_exists('posix_getpwuid')) {
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$userinfo = posix_getpwuid(posix_geteuid());
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$username = $userinfo['name'];
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} else {
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$username = getenv('USERNAME') ?: getenv('USER'); //http://php.net/manual/en/function.get-current-user.php
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}
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if (!($username === 'root' || (isset($config['user']) && $username === $config['user']))) {
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print_fail('You need to run this script as root' . (isset($config['user']) ? ' or '.$config['user'] : ''));
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}
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if ($git_found === true) {
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if ($config['update_channel'] == 'master' && $cur_sha != $versions['github']['sha']) {
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$commit_date = new DateTime('@'.$versions['local_date'], new DateTimeZone(date_default_timezone_get()));
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print_warn("Your install is out of date, last update: " . $commit_date->format('r'));
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}
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}
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// Check php modules we use to make sure they are loaded
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$extensions = array('pcre','curl','session','snmp','mcrypt');
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foreach ($extensions as $extension) {
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if (extension_loaded($extension) === false) {
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$missing_extensions[] = $extension;
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}
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}
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if (!empty($missing_extensions)) {
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print_fail("We couldn't find the following php extensions, please ensure they are installed:");
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foreach ($missing_extensions as $extension) {
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echo "$extension\n";
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}
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}
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if (class_exists('Net_IPv4') === false) {
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print_fail("It doesn't look like Net_IPv4 is installed");
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}
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if (class_exists('Net_IPv6') === false) {
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print_fail("It doesn't look like Net_IPv6 is installed");
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}
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// Let's test the user configured if we have it
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if (isset($config['user'])) {
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$tmp_user = $config['user'];
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$tmp_dir = $config['install_dir'];
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$find_result = rtrim(`find $tmp_dir \! -user $tmp_user`);
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if (!empty($find_result)) {
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// This isn't just the log directory, let's print the list to the user
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$files = explode(PHP_EOL, $find_result);
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if (is_array($files)) {
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print_fail(
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"We have found some files that are owned by a different user than $tmp_user, " .
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'this will stop you updating automatically and / or rrd files being updated causing graphs to fail.',
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"chown -R $tmp_user:$tmp_user {$config['install_dir']}"
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);
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print_list($files, "\t %s\n");
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}
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}
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} else {
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print_warn('You don\'t have $config["user"] set, this most likely needs to be set to librenms');
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}
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// Run test on MySQL
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try {
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dbConnect();
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print_ok('Database connection successful');
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} catch (\LibreNMS\Exceptions\DatabaseConnectException $e) {
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print_fail('Error connecting to your database '.$e->getMessage());
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}
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// pull in the database config settings
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mergedb();
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// Test for MySQL Strict mode
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$strict_mode = dbFetchCell("SELECT @@global.sql_mode");
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if (str_contains($strict_mode, 'STRICT_TRANS_TABLES')) {
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//FIXME - Come back to this once other MySQL modes are fixed
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//print_fail('You have MySQL STRICT_TRANS_TABLES enabled, please disable this until full support has been added: https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html');
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}
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if (empty($strict_mode) === false) {
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print_fail("You have not set sql_mode='' in your mysql config");
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}
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// Test for correct character set and collation
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$collation = dbFetchRows("SELECT DEFAULT_CHARACTER_SET_NAME, DEFAULT_COLLATION_NAME FROM information_schema.SCHEMATA S WHERE schema_name = '" . $config['db_name'] . "' AND ( DEFAULT_CHARACTER_SET_NAME != 'utf8' OR DEFAULT_COLLATION_NAME != 'utf8_unicode_ci')");
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if (empty($collation) !== true) {
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print_fail('MySQL Database collation is wrong: ' . implode(' ', $collation[0]), 'https://t.libren.ms/-zdwk');
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}
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$collation_tables = dbFetchRows("SELECT T.TABLE_NAME, C.CHARACTER_SET_NAME, C.COLLATION_NAME FROM information_schema.TABLES AS T, information_schema.COLLATION_CHARACTER_SET_APPLICABILITY AS C WHERE C.collation_name = T.table_collation AND T.table_schema = '" . $config['db_name'] . "' AND ( C.CHARACTER_SET_NAME != 'utf8' OR C.COLLATION_NAME != 'utf8_unicode_ci' );");
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if (empty($collation_tables) !== true) {
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print_fail('MySQL tables collation is wrong: ', 'http://bit.ly/2lAG9H8');
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print_list($collation_tables, "\t %s\n");
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}
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$collation_columns = dbFetchRows("SELECT TABLE_NAME, COLUMN_NAME, CHARACTER_SET_NAME, COLLATION_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = '" . $config['db_name'] . "' AND ( CHARACTER_SET_NAME != 'utf8' OR COLLATION_NAME != 'utf8_unicode_ci' );");
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if (empty($collation_columns) !== true) {
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print_fail('MySQL column collation is wrong: ', 'https://t.libren.ms/-zdwk');
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print_list($collation_columns, "\t %s\n");
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}
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if (is_file('misc/db_schema.yaml')) {
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$master_schema = Symfony\Component\Yaml\Yaml::parse(
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file_get_contents('misc/db_schema.yaml')
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);
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$current_schema = dump_db_schema();
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$schema_update = array();
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foreach ((array)$master_schema as $table => $data) {
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if (empty($current_schema[$table])) {
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print_fail("Database: missing table ($table)");
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$columns = array_map('column_schema_to_sql', $data['Columns']);
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$indexes = array_map('index_schema_to_sql', $data['Indexes']);
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$def = implode(', ', array_merge(array_values($columns), array_values($indexes)));
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$schema_update[] = "CREATE TABLE `$table` ($def);";
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} else {
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$previous_column = '';
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foreach ($data['Columns'] as $column => $cdata) {
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$cur = $current_schema[$table]['Columns'][$column];
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if (empty($current_schema[$table]['Columns'][$column])) {
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print_fail("Database: missing column ($table/$column)");
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$sql = "ALTER TABLE `$table` ADD " . column_schema_to_sql($cdata);
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if (!empty($previous_column)) {
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$sql .= " AFTER `$previous_column`";
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}
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$schema_update[] = $sql . ';';
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} elseif ($cdata != $cur) {
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print_fail("Database: incorrect column ($table/$column)");
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$schema_update[] = "ALTER TABLE `$table` CHANGE `$column` " . column_schema_to_sql($cdata) . ';';
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}
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$previous_column = $column;
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unset($current_schema[$table]['Columns'][$column]); // remove checked columns
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}
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foreach ($current_schema[$table]['Columns'] as $column => $_unused) {
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print_fail("Database: extra column ($table/$column)");
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$schema_update[] = "ALTER TABLE `$table` DROP `$column`;";
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}
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foreach ($data['Indexes'] as $name => $index) {
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if (empty($current_schema[$table]['Indexes'][$name])) {
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print_fail("Database: missing index ($table/$name)");
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$schema_update[] = "ALTER TABLE `$table` ADD " . index_schema_to_sql($index) . ';';
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} elseif ($index != $current_schema[$table]['Indexes'][$name]) {
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print_fail("Database: incorrect index ($table/$name)");
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$schema_update[] = "ALTER TABLE `$table` DROP INDEX `$name`, " . index_schema_to_sql($index) . ';';
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}
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unset($current_schema[$table]['Indexes'][$name]);
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}
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foreach ($current_schema[$table]['Indexes'] as $name => $_unused) {
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print_fail("Database: extra index ($table/$name)");
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$schema_update[] = "ALTER TABLE `$table` DROP INDEX `$name`;";
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}
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}
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unset($current_schema[$table]); // remove checked tables
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}
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foreach ($current_schema as $table => $data) {
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print_fail("Database: extra table ($table)");
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$schema_update[] = "DROP TABLE `$table`;";
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}
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} else {
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print_warn("We haven't detected the db_schema.yaml file");
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}
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if (empty($schema_update)) {
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print_ok('Database schema correct');
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} else {
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print_fail("We have detected that your database schema may be wrong, please report the following to us on IRC or the community site (https://t.libren.ms/5gscd):");
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print_list($schema_update, "\t %s\n", 30);
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}
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$ini_tz = ini_get('date.timezone');
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$sh_tz = rtrim(shell_exec('date +%Z'));
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$php_tz = date('T');
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if (empty($ini_tz)) {
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print_fail(
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'You have no timezone set for php.',
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'http://php.net/manual/en/datetime.configuration.php#ini.date.timezone'
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);
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} elseif ($sh_tz !== $php_tz) {
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print_fail("You have a different system timezone ($sh_tz) specified to the php configured timezone ($php_tz), please correct this.");
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}
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// Test transports
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if ($config['alerts']['email']['enable'] === true) {
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print_warn('You have the old alerting system enabled - this is to be deprecated on the 1st of June 2015: https://groups.google.com/forum/#!topic/librenms-project/1llxos4m0p4');
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}
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// Test rrdcached
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if (!$config['rrdcached']) {
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$rrd_dir = stat($config['rrd_dir']);
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if ($rrd_dir[4] == 0 || $rrd_dir[5] == 0) {
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print_warn('Your RRD directory is owned by root, please consider changing over to user a non-root user');
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}
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if (substr(sprintf('%o', fileperms($config['rrd_dir'])), -3) != 775) {
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print_warn('Your RRD directory is not set to 0775', "chmod 775 {$config['rrd_dir']}");
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}
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}
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if (isset($config['rrdcached'])) {
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check_rrdcached();
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}
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// Disk space and permission checks
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if (substr(sprintf('%o', fileperms($config['temp_dir'])), -3) != 777) {
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print_warn('Your tmp directory ('.$config['temp_dir'].") is not set to 777 so graphs most likely won't be generated");
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}
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$space_check = (disk_free_space($config['install_dir']) / 1024 / 1024);
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if ($space_check < 512 && $space_check > 1) {
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print_warn('Disk space where '.$config['install_dir'].' is located is less than 512Mb');
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}
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if ($space_check < 1) {
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print_fail('Disk space where '.$config['install_dir'].' is located is empty!!!');
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}
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// Check programs
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$bins = array('fping','fping6','rrdtool','snmpwalk','snmpget','snmpbulkwalk');
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$suid_bins = array('fping', 'fping6');
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foreach ($bins as $bin) {
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$cmd = rtrim(shell_exec("which {$config[$bin]} 2>/dev/null"));
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if (!$cmd) {
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print_fail("$bin location is incorrect or bin not installed. \n\tYou can also manually set the path to $bin by placing the following in config.php: \n\t\$config['$bin'] = \"/path/to/$bin\";");
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} elseif (in_array($bin, $suid_bins) && !(fileperms($cmd) & 2048)) {
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print_fail("$bin should be suid!", "chmod u+s $cmd");
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}
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}
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// Check that rrdtool config version is what we see
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if (isset($config['rrdtool_version']) && (version_compare($config['rrdtool_version'], $versions['rrdtool_ver'], '>'))) {
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print_fail('The rrdtool version you have specified is newer than what is installed.', "Either comment out \$config['rrdtool_version'] = '{$config['rrdtool_version']}'; or set \$config['rrdtool_version'] = '{$versions['rrdtool_ver']}';");
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}
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$disabled_functions = explode(',', ini_get('disable_functions'));
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$required_functions = array('exec','passthru','shell_exec','escapeshellarg','escapeshellcmd','proc_close','proc_open','popen');
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foreach ($required_functions as $function) {
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if (in_array($function, $disabled_functions)) {
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print_fail("$function is disabled in php.ini");
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}
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}
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if (!function_exists('openssl_random_pseudo_bytes')) {
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print_warn("openssl_random_pseudo_bytes is not being used for user password hashing. This is a recommended function (https://secure.php.net/openssl_random_pseudo_bytes)");
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if (!is_readable('/dev/urandom')) {
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print_warn("It also looks like we can't use /dev/urandom for user password hashing. We will fall back to generating our own hash - be warned");
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}
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}
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// check poller
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if (dbFetchCell('SELECT COUNT(*) FROM `pollers`')) {
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if (dbFetchCell('SELECT COUNT(*) FROM `pollers` WHERE `last_polled` >= DATE_ADD(NOW(), INTERVAL - 5 MINUTE)') == 0) {
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print_fail("The poller has not run in the last 5 minutes, check the cron job");
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}
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} else {
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print_fail('The poller has never run, check the cron job');
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}
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if (dbFetchCell('SELECT COUNT(*) FROM `devices`') == 0) {
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print_warn("You have not added any devices yet.");
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} else {
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// check discovery last run
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if (dbFetchCell('SELECT COUNT(*) FROM `devices` WHERE `last_discovered` IS NOT NULL') == 0) {
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print_fail('Discovery has never run, check the cron job');
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} elseif (dbFetchCell("SELECT COUNT(*) FROM `devices` WHERE `last_discovered` <= DATE_ADD(NOW(), INTERVAL - 24 HOUR) AND `ignore` = 0 AND `disabled` = 0 AND `status` = 1") > 0) {
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print_fail("Discovery has not completed in the last 24 hours, check the cron job");
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}
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// check devices polling
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if (count($devices = dbFetchColumn("SELECT `hostname` FROM `devices` WHERE (`last_polled` < DATE_ADD(NOW(), INTERVAL - 5 MINUTE) OR `last_polled` IS NULL) AND `ignore` = 0 AND `disabled` = 0 AND `status` = 1")) > 0) {
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print_warn("Some devices have not been polled in the last 5 minutes.
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You may have performance issues. Check your poll log and see: http://docs.librenms.org/Support/Performance/");
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print_list($devices, "\t %s\n");
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}
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if (count($devices = dbFetchColumn('SELECT `hostname` FROM `devices` WHERE last_polled_timetaken > 300 AND `ignore` = 0 AND `disabled` = 0 AND `status` = 1')) > 0) {
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print_fail("Some devices have not completed their polling run in 5 minutes, this will create gaps in data.
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Check your poll log and refer to http://docs.librenms.org/Support/Performance/");
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print_list($devices, "\t %s\n");
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}
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}
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if ($git_found === true) {
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if ($versions['local_branch'] != 'master') {
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print_warn("Your local git branch is not master, this will prevent automatic updates.");
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}
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// check for modified files
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$modifiedcmd = 'git diff --name-only --exit-code';
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if ($username === 'root') {
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$modifiedcmd = 'su '.$config['user'].' -c "'.$modifiedcmd.'"';
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}
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exec($modifiedcmd, $cmdoutput, $code);
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if ($code !== 0 && !empty($cmdoutput)) {
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print_warn("Your local git contains modified files, this could prevent automatic updates.\nModified files:");
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print_list($cmdoutput, "\t %s\n");
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}
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}
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// Modules test
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$modules = explode(',', $options['m']);
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foreach ($modules as $module) {
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switch ($module) {
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case 'mail':
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if ($config['alert']['transports']['mail'] === true) {
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$run_test = 1;
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if (empty($config['alert']['default_mail'])) {
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print_fail('default_mail config option needs to be specified to test email');
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$run_test = 0;
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} elseif ($config['email_backend'] == 'sendmail') {
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if (empty($config['email_sendmail_path'])) {
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print_fail("You have selected sendmail but not configured email_sendmail_path");
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$run_test = 0;
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} elseif (!file_exists($config['email_sendmail_path'])) {
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print_fail("The configured email_sendmail_path is not valid");
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$run_test = 0;
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}
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} elseif ($config['email_backend'] == 'smtp') {
|
|
if (empty($config['email_smtp_host'])) {
|
|
print_fail('You have selected SMTP but not configured an SMTP host');
|
|
$run_test = 0;
|
|
}
|
|
if (empty($config['email_smtp_port'])) {
|
|
print_fail('You have selected SMTP but not configured an SMTP port');
|
|
$run_test = 0;
|
|
}
|
|
if (($config['email_smtp_auth'] === true) && (empty($config['email_smtp_username']) || empty($config['email_smtp_password']))) {
|
|
print_fail('You have selected SMTP auth but have not configured both username and password');
|
|
$run_test = 0;
|
|
}
|
|
}//end if
|
|
if ($run_test == 1) {
|
|
if ($err = send_mail($config['alert']['default_mail'], 'Test email', 'Testing email from NMS')) {
|
|
print_ok('Email has been sent');
|
|
} else {
|
|
print_fail('Issue sending email to '.$config['alert']['default_mail'].' with error '.$err);
|
|
}
|
|
}
|
|
}//end if
|
|
break;
|
|
case 'dist-poller':
|
|
if ($config['distributed_poller'] !== true) {
|
|
print_fail('You have not enabled distributed_poller');
|
|
} else {
|
|
if (empty($config['distributed_poller_memcached_host'])) {
|
|
print_fail('You have not configured $config[\'distributed_poller_memcached_host\']');
|
|
} elseif (empty($config['distributed_poller_memcached_port'])) {
|
|
print_fail('You have not configured $config[\'distributed_poller_memcached_port\']');
|
|
} else {
|
|
$connection = @fsockopen($config['distributed_poller_memcached_host'], $config['distributed_poller_memcached_port']);
|
|
if (!is_resource($connection)) {
|
|
print_fail('We could not get memcached stats, it is possible that we cannot connect to your memcached server, please check');
|
|
} else {
|
|
fclose($connection);
|
|
print_ok('Connection to memcached is ok');
|
|
}
|
|
}
|
|
if (empty($config['rrdcached'])) {
|
|
print_fail('You have not configured $config[\'rrdcached\']');
|
|
} elseif (empty($config['rrd_dir'])) {
|
|
print_fail('You have not configured $config[\'rrd_dir\']');
|
|
} else {
|
|
check_rrdcached();
|
|
}
|
|
}
|
|
break;
|
|
case 'rrdcheck':
|
|
// Loop through the rrd_dir
|
|
$rrd_directory = new RecursiveDirectoryIterator($config['rrd_dir']);
|
|
// Filter out any non rrd files
|
|
$rrd_directory_filter = new LibreNMS\RRDRecursiveFilterIterator($rrd_directory);
|
|
$rrd_iterator = new RecursiveIteratorIterator($rrd_directory_filter);
|
|
$rrd_total = iterator_count($rrd_iterator);
|
|
$rrd_iterator->rewind(); // Rewind iterator in case iterator_count left iterator in unknown state
|
|
|
|
echo "\nScanning ".$rrd_total." rrd files in ".$config['rrd_dir']."...\n";
|
|
|
|
// Count loops so we can push status to the user
|
|
$loopcount = 0;
|
|
$screenpad = 0;
|
|
|
|
foreach ($rrd_iterator as $filename => $file) {
|
|
$rrd_test_result = rrdtest($filename, $output, $error);
|
|
|
|
$loopcount++;
|
|
if (($loopcount % 50) == 0) {
|
|
//This lets us update the previous status update without spamming in most consoles
|
|
echo "\033[".$screenpad."D";
|
|
$test_status = 'Status: '.$loopcount.'/'.$rrd_total;
|
|
echo $test_status;
|
|
$screenpad = strlen($test_status);
|
|
}
|
|
|
|
// A non zero result means there was some kind of error
|
|
if ($rrd_test_result > 0) {
|
|
echo "\033[".$screenpad."D";
|
|
print_fail('Error parsing "'.$filename.'" RRD '.trim($error));
|
|
$screenpad = 0;
|
|
}
|
|
}
|
|
echo "\033[".$screenpad."D";
|
|
echo "Status: ".$loopcount."/".$rrd_total." - Complete\n";
|
|
|
|
break;
|
|
}//end switch
|
|
}//end foreach
|
|
|
|
// End
|
|
|
|
|
|
function print_ok($msg)
|
|
{
|
|
c_echo("[%gOK%n] $msg\n");
|
|
}//end print_ok()
|
|
|
|
|
|
function print_fail($msg, $fix = null)
|
|
{
|
|
c_echo("[%RFAIL%n] $msg");
|
|
if ($fix && strlen($msg) > 72) {
|
|
echo PHP_EOL . " ";
|
|
}
|
|
print_fix($fix);
|
|
}
|
|
|
|
|
|
function print_warn($msg, $fix = null)
|
|
{
|
|
c_echo("[%YWARN%n] $msg");
|
|
if ($fix && strlen($msg) > 72) {
|
|
echo PHP_EOL . " ";
|
|
}
|
|
print_fix($fix);
|
|
}
|
|
|
|
/**
|
|
* @param $fix
|
|
*/
|
|
function print_fix($fix)
|
|
{
|
|
if (!empty($fix)) {
|
|
c_echo(" [%BFIX%n] %B$fix%n");
|
|
}
|
|
echo PHP_EOL;
|
|
}
|
|
|
|
function check_rrdcached()
|
|
{
|
|
global $config;
|
|
list($host,$port) = explode(':', $config['rrdcached']);
|
|
if ($host == 'unix') {
|
|
// Using socket, check that file exists
|
|
if (!file_exists($port)) {
|
|
print_fail("$port doesn't appear to exist, rrdcached test failed");
|
|
}
|
|
} else {
|
|
$connection = @fsockopen($host, $port);
|
|
if (is_resource($connection)) {
|
|
fclose($connection);
|
|
} else {
|
|
print_fail('Cannot connect to rrdcached instance');
|
|
}
|
|
}
|
|
}//end check_rrdcached
|