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* fix(scripts): return 'U' on error in ss_webseer, ss_gexport, query_host_cpu
Data source scripts must return 'U' (RRDtool unknown) on error rather than
'0', which is a valid data value and silently poisons graphs.
- ss_webseer.php: replace empty() guard with strict $value === '' comparison
(empty('0') is true in PHP, corrupting a valid zero reading); return 'U'
on fallthrough instead of false
- ss_gexport.php: return 'U' on fallthrough instead of null
- query_host_cpu.php: print 'U' when requested index absent in get handler
Adds DatasourceScriptErrorReturnTest.php with source-scan tests for each
corrected return path including regression guards for the empty() trap.
Uses tab indentation to match repo conventions.
Signed-off-by: Thomas Vincent <thomasvincent@gmail.com>
* fix(ss_webseer): catch false/null returns from db_fetch_cell_prepared
db_fetch_cell_prepared() returns false when the query finds no row or
fails. The previous check ($value === '') passed false and null through
as-is, returning a non-'U' value to rrdtool and causing NaN spikes.
Extend the guard to treat false and null the same as empty string.
Signed-off-by: Thomas Vincent <thomasvincent@gmail.com>
* test(scripts): add GPL header to DatasourceScriptErrorReturnTest
Signed-off-by: Thomas Vincent <thomasvincent@gmail.com>
* test(scripts): add false/null guard tests for ss_gexport and ss_webseer
Adds source-scan assertions verifying both scripts handle false and null
returns from db_fetch_cell_prepared, and a behavioural dataset confirming
the guard expression maps all three sentinel values to 'U'.
Signed-off-by: Thomas Vincent <thomasvincent@gmail.com>
---------
Signed-off-by: Thomas Vincent <thomasvincent@gmail.com>
Co-authored-by: TheWitness <thewitness@cacti.net>
133 lines
4.1 KiB
PHP
Executable File
133 lines
4.1 KiB
PHP
Executable File
#!/usr/bin/env php
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<?php
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/*
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+-------------------------------------------------------------------------+
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| Copyright (C) 2004-2026 The Cacti Group |
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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: The Complete RRDtool-based Graphing Solution |
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+-------------------------------------------------------------------------+
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| This code is designed, written, and maintained by the Cacti Group. See |
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| about.php and/or the AUTHORS file for specific developer information. |
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+-------------------------------------------------------------------------+
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| http://www.cacti.net/ |
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+-------------------------------------------------------------------------+
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*/
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error_reporting(0);
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if (!isset($called_by_script_server)) {
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include_once(__DIR__ . '/../include/cli_check.php');
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array_shift($_SERVER['argv']);
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print call_user_func_array('ss_webseer', $_SERVER['argv']);
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}
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function ss_webseer(string $cmd = 'index', string $arg1 = '', string $arg2 = '') : mixed {
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if ($cmd == 'index') {
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if (db_table_exists('plugin_webseer_urls')) {
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$exports = db_fetch_assoc('SELECT id FROM plugin_webseer_urls ORDER BY id');
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if (cacti_sizeof($exports)) {
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foreach ($exports as $export) {
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print $export['id'] . PHP_EOL;
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}
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}
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}
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} elseif ($cmd == 'query') {
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$arg = $arg1;
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if (db_table_exists('plugin_webseer_urls')) {
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if ($arg == 'webseerId') {
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$arr = db_fetch_assoc('SELECT id FROM plugin_webseer_urls ORDER BY id');
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if (cacti_sizeof($arr)) {
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foreach ($arr as $item) {
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print $item['id'] . '!' . $item['id'] . PHP_EOL;
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}
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}
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} elseif ($arg == 'webseerName') {
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$arr = db_fetch_assoc('SELECT id, display_name AS name FROM plugin_webseer_urls ORDER BY id');
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if (cacti_sizeof($arr)) {
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foreach ($arr as $item) {
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print $item['id'] . '!' . $item['name'] . PHP_EOL;
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}
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}
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}
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}
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} elseif ($cmd == 'get') {
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$arg = $arg1;
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$index = $arg2;
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$value = 'U';
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if (db_table_exists('plugin_webseer_urls')) {
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switch($arg) {
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case 'lookupTime':
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$value = db_fetch_cell_prepared('SELECT namelookup_time
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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case 'connectTime':
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$value = db_fetch_cell_prepared('SELECT connect_time
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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case 'redirectTime':
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$value = db_fetch_cell_prepared('SELECT redirect_time
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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case 'totalTime':
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$value = db_fetch_cell_prepared('SELECT total_time
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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case 'downloadSpeed':
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$value = db_fetch_cell_prepared('SELECT speed_download
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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case 'downloadSize':
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$value = db_fetch_cell_prepared('SELECT size_download
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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case 'checkStatus':
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$value = db_fetch_cell_prepared('SELECT result
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FROM plugin_webseer_urls
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WHERE id = ?',
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[$index]);
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break;
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}
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}
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return ($value === '' || $value === false || $value === null ? 'U' : $value);
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}
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return 'U';
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}
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