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<?php /* <ViaThinkSoftSignature>
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<?php /* <ViaThinkSoftSignature>
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g==
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Q==
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</ViaThinkSoftSignature> */ ?>
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</ViaThinkSoftSignature> */ ?>
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<?php
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<?php
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/*
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/*
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 * VNag - Nagios Framework for PHP
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 * VNag - Nagios Framework for PHP
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 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
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 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
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 * Licensed under the terms of the Apache 2.0 license
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 * Licensed under the terms of the Apache 2.0 license
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 *
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 *
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 * Revision 2023-06-12
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 * Revision 2023-10-13
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 */
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 */
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declare(ticks=1);
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declare(ticks=1);
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class MinecraftJavaVersionCheck extends VNag {
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class MinecraftJavaVersionCheck extends VNag {
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                // Individual (non-standard) arguments:
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                // Individual (non-standard) arguments:
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                $this->addExpectedArgument($this->argSystemDir = new VNagArgument('d', 'directory', VNagArgument::VALUE_REQUIRED, 'serverPath', 'The local directory where your Minecraft for Java server.jar is located.'));
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                $this->addExpectedArgument($this->argSystemDir = new VNagArgument('d', 'directory', VNagArgument::VALUE_REQUIRED, 'serverPath', 'The local directory where your Minecraft for Java server.jar is located.'));
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        }
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        }
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        protected function get_latest_minecraft_version() {
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                $url = 'https://launchermeta.mojang.com/mc/game/version_manifest.json';
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                $max_cache_time = 1 * 60 * 60;
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                $cache_file = $this->get_cache_dir().'/'.sha1($url);
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                if (file_exists($cache_file) && (time()-filemtime($cache_file) < $max_cache_time)) {
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                        $cont = @file_get_contents($cache_file);
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                        if (!$cont) throw new Exception("Failed to get contents from $cache_file");
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                } else {
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                        $cont = @file_get_contents('https://launchermeta.mojang.com/mc/game/version_manifest.json');
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                        if (!$cont) throw new Exception("Cannot detect latest available Minecraft version (HTTPS request to $url failed)");
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                        file_put_contents($cache_file, $cont);
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                }
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                $json = @json_decode($cont, true);
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                if (!$json) throw new Exception("Cannot detect latest available Minecraft version (JSON invalid data)");
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                $version = $json['latest']['release'] ?? null;
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                if (!$version) throw new Exception("Cannot detect latest available Minecraft version (JSON does not contain version)");
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                return $version;
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        }
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        protected function get_installed_minecraft_version($local_path) {
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        protected function get_local_version($local_path) {
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                if (strtolower(substr($local_path,-4)) == '.jar') {
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                if (strtolower(substr($local_path,-4)) == '.jar') {
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                        // Single JAR file specified. Search it.
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                        // Single JAR file specified. Search it.
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                        $files = glob($local_path);
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                        $files = glob($local_path);
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                } else {
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                } else {
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                        // Directory specified. Search the server.jar
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                        // Directory specified. Search the server.jar
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                }
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                }
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                return (string)json_decode($json,true)['name'];
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                return (string)json_decode($json,true)['name'];
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        }
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        }
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        protected function get_latest_version() {
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                $cont = $this->url_get_contents('https://launchermeta.mojang.com/mc/game/version_manifest.json');
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                if ($cont === false) throw new Exception("Cannot detect latest available Minecraft version (GET request failed)");
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                $json = @json_decode($cont, true);
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                if ($json === false) throw new Exception("Cannot detect latest available Minecraft version (JSON invalid data)");
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                $version = $json['latest']['release'] ?? null;
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                if (!$version) throw new Exception("Cannot detect latest available Minecraft version (JSON does not contain version)");
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                return $version;
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        }
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        protected function cbRun($optional_args=array()) {
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        protected function cbRun($optional_args=array()) {
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                $system_dir = $this->argSystemDir->getValue(); // note: can contain wildcards
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                $system_dir = $this->argSystemDir->getValue(); // note: can contain wildcards
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                $cur_ver = $this->get_installed_minecraft_version($system_dir);
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                $cur_ver = $this->get_local_version($system_dir);
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                $new_ver = $this->get_latest_minecraft_version();
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                $new_ver = $this->get_latest_version();
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                if (version_compare($cur_ver,$new_ver) >= 0) {
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                if (version_compare($cur_ver,$new_ver) >= 0) {
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                        $this->setStatus(VNag::STATUS_OK);
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                        $this->setStatus(VNag::STATUS_OK);
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                        $this->setHeadline("Minecraft version $cur_ver is the latest available version for your Minecraft for Java server installation at $system_dir", true);
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                        $this->setHeadline("Minecraft version $cur_ver is the latest available version for your Minecraft for Java server installation at $system_dir", true);
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                } else {
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                } else {