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<?php |
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defined( 'WPINC' ) || die; |
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/** |
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* Check for minimum system requirments on plugin activation |
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* @version 3.0.0 |
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*/ |
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class GL_Plugin_Check_v3 |
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{ |
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const MIN_PHP_VERSION = '5.6.0'; |
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const MIN_WORDPRESS_VERSION = '4.7.0'; |
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/** |
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* @var string |
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*/ |
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protected $file; |
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/** |
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* @var array |
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*/ |
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protected $versions; |
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/** |
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* @param string $file |
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*/ |
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public function __construct( $file, array $versions = array() ) |
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{ |
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$this->file = realpath( $file ); |
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$this->versions = wp_parse_args( $versions, array( |
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'php' => static::MIN_PHP_VERSION, |
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'wordpress' => static::MIN_WORDPRESS_VERSION, |
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)); |
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} |
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/** |
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* @return bool |
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*/ |
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public function canProceed() |
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{ |
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if( $this->isValid() ) { |
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return true; |
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} |
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add_action( 'activated_plugin', array( $this, 'deactivate' )); |
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add_action( 'admin_notices', array( $this, 'deactivate' )); |
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return false; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isPhpValid() |
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{ |
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return !version_compare( PHP_VERSION, $this->versions['php'], '<' ); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isValid() |
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{ |
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return $this->isPhpValid() && $this->isWpValid(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isWpValid() |
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{ |
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global $wp_version; |
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return !version_compare( $wp_version, $this->versions['wordpress'], '<' ); |
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} |
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/** |
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* @param string $plugin |
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* @return void |
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*/ |
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public function deactivate( $plugin ) |
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{ |
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if( $this->isValid() )return; |
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$pluginSlug = plugin_basename( $this->file ); |
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if( $plugin == $pluginSlug ) { |
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$this->redirect(); //exit |
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} |
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$pluginData = get_file_data( $this->file, array( 'name' => 'Plugin Name' ), 'plugin' ); |
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deactivate_plugins( $pluginSlug ); |
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$this->printNotice( $pluginData['name'] ); |
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} |
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/** |
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* @return array |
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*/ |
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protected function getMessages() |
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{ |
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return array( |
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__( 'The %s plugin was deactivated.', 'pollux' ), |
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__( 'This plugin requires %s or greater in order to work properly.', 'pollux' ), |
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__( 'Please contact your hosting provider or server administrator to upgrade the version of PHP on your server (your server is running PHP version %s), or try to find an alternative plugin.', 'pollux' ), |
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__( 'PHP version', 'pollux' ), |
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__( 'WordPress version', 'pollux' ), |
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__( 'Update WordPress', 'pollux' ), |
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__( 'You can use the %s plugin to restore %s to the previous version.', 'pollux' ), |
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); |
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} |
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/** |
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* @param string $pluginName |
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* @return void |
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*/ |
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protected function printNotice( $pluginName ) |
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{ |
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$noticeTemplate = '<div id="message" class="notice notice-error error is-dismissible"><p><strong>%s</strong></p><p>%s</p><p>%s</p></div>'; |
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$messages = $this->getMessages(); |
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$rollbackMessage = sprintf( '<strong>'.$messages[6].'</strong>', '<a href="https://wordpress.org/plugins/wp-rollback/">WP Rollback</a>', $pluginName ); |
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if( !$this->isPhpValid() ) { |
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printf( $noticeTemplate, |
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sprintf( $messages[0], $pluginName ), |
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sprintf( $messages[1], $messages[3].' '.$this->versions['php'] ), |
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sprintf( $messages[2], PHP_VERSION ).'</p><p>'.$rollbackMessage |
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); |
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} |
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else if( !$this->isWpValid() ) { |
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printf( $noticeTemplate, |
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sprintf( $messages[0], $pluginName ), |
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sprintf( $messages[1], $messages[4].' '.$this->versions['wordpress'] ), |
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$rollbackMessage.'</p><p>'.sprintf( '<a href="%s">%s</a>', admin_url( 'update-core.php' ), $messages[5] ) |
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); |
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} |
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} |
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/** |
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* @return void |
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*/ |
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protected function redirect() |
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{ |
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wp_safe_redirect( self_admin_url( sprintf( 'plugins.php?plugin_status=%s&paged=%s&s=%s', |
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filter_input( INPUT_GET, 'plugin_status' ), |
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filter_input( INPUT_GET, 'paged' ), |
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filter_input( INPUT_GET, 's' ) |
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))); |
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exit; |
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142
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} |
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143
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} |
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144
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pryley /
pollux
Loading history...
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.