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| 4 | daniel-mar | 1 | <?php /* <ViaThinkSoftSignature> |
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| 23 | w== |
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| 24 | </ViaThinkSoftSignature> */ ?> |
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| 2 | daniel-mar | 25 | <?php |
| 26 | |||
| 27 | /* |
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| 28 | * VNag - Nagios Framework for PHP |
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| 29 | * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com> |
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| 30 | * Licensed under the terms of the Apache 2.0 license |
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| 31 | * |
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| 32 | * Revision 2018-11-04 |
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| 33 | */ |
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| 34 | |||
| 35 | declare(ticks=1); |
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| 36 | |||
| 37 | class DiskRunningCheck extends VNag { |
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| 38 | // Currently, we do not accept wildcards ('sd*' and 'hd*') because this plugin should monitor if disks become offline, e.g. horribly fail or get disconnected. |
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| 39 | // If that would happen, the disk might vanish from the device-folder and therefore would not be detected by the wildcard anymore. |
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| 40 | protected $argDisks = null; |
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| 41 | |||
| 42 | public function __construct() { |
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| 43 | parent::__construct(); |
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| 44 | |||
| 45 | if ($this->is_http_mode()) { |
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| 46 | // Don't allow the standard arguments via $_REQUEST |
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| 47 | $this->registerExpectedStandardArguments(''); |
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| 48 | } else { |
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| 49 | $this->registerExpectedStandardArguments('Vhtv'); |
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| 50 | } |
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| 51 | |||
| 52 | $this->getHelpManager()->setPluginName('vnag_disk_running'); |
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| 53 | $this->getHelpManager()->setVersion('1.0'); |
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| 54 | $this->getHelpManager()->setShortDescription('This plugin checks if a disk is running/online, even if no SMART functionality is available.'); |
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| 55 | $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.'); |
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| 56 | $this->getHelpManager()->setSyntax('$SCRIPTNAME$ -d diskname[,diskname[,...]]'); |
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| 57 | $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com'); |
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| 58 | |||
| 59 | // Individual (non-standard) arguments: |
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| 60 | $this->addExpectedArgument($this->argDisks = new VNagArgument('d', 'disknames', VNagArgument::VALUE_REQUIRED, 'disks', 'Disks to be monitored, e.g. "sda,sdb"')); |
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| 61 | } |
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| 62 | |||
| 63 | protected function cbRun() { |
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| 64 | $count_total = 0; |
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| 65 | $count_running = 0; |
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| 66 | $count_offline = 0; |
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| 67 | $count_unknown = 0; |
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| 68 | |||
| 69 | $disks = $this->argDisks->getValue(); |
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| 70 | if (empty($disks)) { |
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| 71 | throw new Exception("Please specify the disks you want to monitor."); |
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| 72 | } |
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| 73 | $disks = explode(',',$disks); |
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| 74 | |||
| 75 | foreach ($disks as $disk) { |
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| 76 | // We do not check the size, in case the user has more than 26 disks; https://rwmj.wordpress.com/2011/01/09/how-are-linux-drives-named-beyond-drive-26-devsdz/ |
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| 77 | // But we check if everything is OK, and nothing nasty is done here |
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| 78 | $disk = preg_replace('@[^a-zA-Z0-9]@', '', $disk); |
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| 79 | |||
| 80 | $count_total++; |
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| 81 | if (!file_exists("/dev/$disk")) { |
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| 82 | $this->addVerboseMessage("$disk : Drive does not exist", VNag::VERBOSITY_SUMMARY); |
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| 83 | $this->setStatus(VNag::STATUS_CRITICAL); |
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| 84 | $count_offline++; |
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| 85 | } else { |
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| 86 | $state_file = "/sys/block/$disk/device/state"; |
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| 87 | if (!file_exists($state_file)) { |
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| 88 | $this->addVerboseMessage("$disk : Cannot fetch state (Is this a valid block device?)", VNag::VERBOSITY_SUMMARY); |
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| 89 | $this->setStatus(VNag::STATUS_CRITICAL); |
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| 90 | $count_unknown++; |
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| 91 | } else { |
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| 92 | $state = trim(file_get_contents($state_file)); |
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| 93 | if ($state != 'running') { |
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| 94 | $this->addVerboseMessage("$disk : $state", VNag::VERBOSITY_SUMMARY); |
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| 95 | $this->setStatus(VNag::STATUS_CRITICAL); |
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| 96 | $count_offline++; |
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| 97 | } else { |
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| 98 | $this->addVerboseMessage("$disk : $state", VNag::VERBOSITY_ADDITIONAL_INFORMATION); |
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| 99 | $this->setStatus(VNag::STATUS_OK); // Note: This won't unset a previously set critical state |
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| 100 | $count_running++; |
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| 101 | } |
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| 102 | } |
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| 103 | } |
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| 104 | } |
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| 105 | |||
| 106 | $this->setHeadline(sprintf('Checked %d disks (%d running, %d offline, %d unknown)', $count_total, $count_running, $count_offline, $count_unknown)); |
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| 107 | } |
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| 108 | } |