345 lines
9.0 KiB
PHP
345 lines
9.0 KiB
PHP
<?php
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/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
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namespace Icinga\Application;
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/**
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* Platform tests for icingaweb
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*/
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class Platform
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{
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/**
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* Domain name
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*
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* @var string
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*/
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protected static $domain;
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/**
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* Host name
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*
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* @var string
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*/
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protected static $hostname;
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/**
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* Fully qualified domain name
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*
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* @var string
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*/
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protected static $fqdn;
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/**
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* Return the operating system's name
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*
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* @return string
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*/
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public static function getOperatingSystemName()
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{
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return php_uname('s');
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}
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/**
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* Test of windows
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*
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* @return bool
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*/
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public static function isWindows()
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{
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return strtoupper(substr(self::getOperatingSystemName(), 0, 3)) === 'WIN';
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}
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/**
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* Test of linux
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*
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* @return bool
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*/
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public static function isLinux()
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{
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return strtoupper(substr(self::getOperatingSystemName(), 0, 5)) === 'LINUX';
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}
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/**
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* Return the Linux distribution's name
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* or 'linux' if the name could not be found out
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* or false if the OS isn't Linux or an error occurred
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*
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* @param int $reliable
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* 3: Only parse /etc/os-release (or /usr/lib/os-release).
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* For the paranoid ones.
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* 2: If that (3) doesn't help, check /etc/*-release, too.
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* If something is unclear, return 'linux'.
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* 1: Almost equal to mode 2. The possible return values also include:
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* 'redhat' -- unclear whether RHEL/Fedora/...
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* 'suse' -- unclear whether SLES/openSUSE/...
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* 0: If even that (1) doesn't help, check /proc/version, too.
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* This may not work (as expected) on LXC containers!
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* (No reliability at all!)
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*
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* @return string|bool
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*/
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public static function getLinuxDistro($reliable = 2)
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{
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if (! self::isLinux()) {
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return false;
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}
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foreach (array('/etc/os-release', '/usr/lib/os-release') as $osReleaseFile) {
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if (false === ($osRelease = @file(
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$osReleaseFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES
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))) {
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continue;
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}
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foreach ($osRelease as $osInfo) {
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if (false === ($res = @preg_match('/(?<!.)[ \t]*#/ms', $osInfo))) {
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return false;
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}
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if ($res === 1) {
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continue;
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}
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$matches = array();
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if (false === ($res = @preg_match(
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'/(?<!.)[ \t]*ID[ \t]*=[ \t]*(\'|"|)(.*?)(?:\1)[ \t]*(?!.)/msi',
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$osInfo,
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$matches
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))) {
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return false;
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}
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if (! ($res === 0 || $matches[2] === '' || $matches[2] === 'linux')) {
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return $matches[2];
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}
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}
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}
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if ($reliable > 2) {
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return 'linux';
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}
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foreach (array(
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'fedora' => '/etc/fedora-release',
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'centos' => '/etc/centos-release'
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) as $distro => $releaseFile) {
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if (! (false === (
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$release = @file_get_contents($releaseFile)
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) || false === strpos(strtolower($release), $distro))) {
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return $distro;
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}
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}
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if (false !== ($release = @file_get_contents('/etc/redhat-release'))) {
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$release = strtolower($release);
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if (false !== strpos($release, 'red hat enterprise linux')) {
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return 'rhel';
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}
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foreach (array('fedora', 'centos') as $distro) {
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if (false !== strpos($release, $distro)) {
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return $distro;
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}
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}
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return $reliable < 2 ? 'redhat' : 'linux';
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}
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if (false !== ($release = @file_get_contents('/etc/SuSE-release'))) {
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$release = strtolower($release);
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foreach (array(
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'opensuse' => 'opensuse',
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'sles' => 'suse linux enterprise server',
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'sled' => 'suse linux enterprise desktop'
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) as $distro => $name) {
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if (false !== strpos($release, $name)) {
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return $distro;
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}
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}
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return $reliable < 2 ? 'suse' : 'linux';
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}
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if ($reliable < 1) {
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if (false === ($procVersion = @file_get_contents('/proc/version'))) {
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return false;
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}
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$procVersion = strtolower($procVersion);
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foreach (array(
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'redhat' => 'red hat',
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'suse' => 'suse linux',
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'ubuntu' => 'ubuntu',
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'debian' => 'debian'
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) as $distro => $name) {
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if (false !== strpos($procVersion, $name)) {
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return $distro;
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}
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}
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}
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return 'linux';
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}
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/**
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* Test of CLI environment
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*
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* @return bool
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*/
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public static function isCli()
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{
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if (PHP_SAPI == 'cli') {
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return true;
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} elseif ((PHP_SAPI == 'cgi' || PHP_SAPI == 'cgi-fcgi')
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&& empty($_SERVER['SERVER_NAME'])) {
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return true;
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}
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return false;
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}
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/**
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* Get the hostname
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*
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* @return string
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*/
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public static function getHostname()
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{
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if (self::$hostname === null) {
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self::discoverHostname();
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}
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return self::$hostname;
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}
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/**
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* Get the domain name
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*
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* @return string
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*/
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public static function getDomain()
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{
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if (self::$domain === null) {
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self::discoverHostname();
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}
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return self::$domain;
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}
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/**
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* Get the fully qualified domain name
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*
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* @return string
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*/
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public static function getFqdn()
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{
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if (self::$fqdn === null) {
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self::discoverHostname();
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}
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return self::$fqdn;
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}
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/**
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* Initialize domain and host strings
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*/
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protected static function discoverHostname()
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{
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self::$hostname = gethostname();
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self::$fqdn = gethostbyaddr(gethostbyname(self::$hostname));
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if (substr(self::$fqdn, 0, strlen(self::$hostname)) === self::$hostname) {
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self::$domain = substr(self::$fqdn, strlen(self::$hostname) + 1);
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} else {
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$parts = preg_split('~\.~', self::$hostname, 2);
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self::$domain = array_shift($parts);
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}
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}
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/**
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* Return the version of PHP
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*
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* @return string
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*/
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public static function getPhpVersion()
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{
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return phpversion();
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}
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/**
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* Return the username PHP is running as
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*
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* @return string
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*/
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public static function getPhpUser()
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{
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if (static::isWindows()) {
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return get_current_user(); // http://php.net/manual/en/function.get-current-user.php#75059
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}
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if (function_exists('posix_geteuid')) {
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$userInfo = posix_getpwuid(posix_geteuid());
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return $userInfo['name'];
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}
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}
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/**
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* Test for php extension
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*
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* @param string $extensionName E.g. mysql, ldap
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*
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* @return bool
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*/
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public static function extensionLoaded($extensionName)
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{
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return extension_loaded($extensionName);
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}
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/**
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* Return the value for the given PHP configuration option
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*
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* @param string $option The option name for which to return the value
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*
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* @return string|false
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*/
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public static function getPhpConfig($option)
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{
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return ini_get($option);
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}
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/**
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* Return whether the given class exists
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*
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* @param string $name The name of the class to check
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*
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* @return bool
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*/
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public static function classExists($name)
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{
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if (@class_exists($name)) {
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return true;
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}
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if (strpos($name, '_') !== false) {
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// Assume it's a Zend-Framework class
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return (@include str_replace('_', '/', $name) . '.php') !== false;
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}
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return false;
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}
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/**
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* Return whether it's possible to connect to a MySQL database
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*
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* Checks whether the mysql pdo extension has been loaded and the Zend framework adapter for MySQL is available
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*
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* @return bool
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*/
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public static function hasMysqlSupport()
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{
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return static::extensionLoaded('mysql') && static::classExists('Zend_Db_Adapter_Pdo_Mysql');
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}
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/**
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* Return whether it's possible to connect to a PostgreSQL database
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*
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* Checks whether the pgsql pdo extension has been loaded and the Zend framework adapter for PostgreSQL is available
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*
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* @return bool
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*/
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public static function hasPostgresqlSupport()
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{
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return static::extensionLoaded('pgsql') && static::classExists('Zend_Db_Adapter_Pdo_Pgsql');
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}
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}
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