<p style='color:red'>❌ domains folder not found.</p><h2>✏️ Editing: Util_Activation.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
namespace W3TC;

class Util_Activation {
	/**
	 * Deactivate plugin after activation error
	 *
	 * @return void
	 */
	static private function _cleanup() {
		$active_plugins = (array) get_option( 'active_plugins' );
		$active_plugins_network = (array) get_site_option( 'active_sitewide_plugins' );

		// workaround for WPMU deactivation bug
		remove_action( 'deactivate_' . W3TC_FILE, 'deactivate_sitewide_plugin' );

		do_action( 'deactivate_plugin', W3TC_FILE );

		$key = array_search( W3TC_FILE, $active_plugins );

		if ( $key !== false ) {
			array_splice( $active_plugins, $key, 1 );
		}

		unset( $active_plugins_network[W3TC_FILE] );

		do_action( 'deactivate_' . W3TC_FILE );
		do_action( 'deactivated_plugin', W3TC_FILE );

		update_option( 'active_plugins', $active_plugins );
		update_site_option( 'active_sitewide_plugins', $active_plugins_network );
	}

	/**
	 * W3 activate error
	 *
	 * @param string  $error
	 * @return void
	 */
	static private function _error( $error ) {
		self::_cleanup();

		include W3TC_INC_DIR . '/error.php';
		exit();
	}

	/**
	 * Print activation error with repeat button based on exception
	 *
	 * @param unknown $e
	 */
	static public function error_on_exception( $e ) {
		$reactivate_url = wp_nonce_url( 'plugins.php?action=activate&amp;plugin=' . W3TC_FILE, 'activate-plugin_' . W3TC_FILE );
		$reactivate_button = sprintf( '%1$sre-activate plugin', '&lt;input type=&quot;button&quot; value=&quot;' ) .
			sprintf( '&quot; onclick=&quot;top.location.href = \'%s\'&quot; /&gt;', addslashes( $reactivate_url ) );

		self::_error( sprintf( __( '%s&lt;br /&gt;then %s.', 'w3-total-cache' ), $e-&gt;getMessage(), $reactivate_button ) );
	}

	/**
	 * W3 writable error
	 *
	 * @param string  $path
	 * @param string[] $chmod_dirs Directories that should be chmod 777 inorder to write
	 */
	static public function throw_on_write_error( $path, $chmod_dirs = array() ) {

		$chmods = '';
		if ( $chmod_dirs ) {
			$chmods = '&lt;ul&gt;';
			foreach ( $chmod_dirs as $dir ) {
				$chmods .= sprintf( __( '&lt;li&gt;&lt;strong style=&quot;color: #f00;&quot;&gt;chmod 777 %s&lt;/strong&gt;&lt;/li&gt;', 'w3-total-cache' ), $dir );
			}
		} else {
			$chmods = sprintf( '&lt;strong style=&quot;color: #f00;&quot;&gt;chmod 777 %s&lt;/strong&gt;',
				( file_exists( $path ) ? $path : dirname( $path ) ) );
		}
		if ( Util_File::check_open_basedir( $path ) ) {
			$error = sprintf(
				__( '&lt;strong&gt;%s&lt;/strong&gt; could not be created, please run following command:&lt;br /&gt;%s',
					'w3-total-cache' ),
				$path, $chmods );
		} else {
			$error = sprintf(
				__( '&lt;strong&gt;%s&lt;/strong&gt; could not be created, &lt;strong&gt;open_basedir&lt;/strong&gt; restriction in effect, please check your php.ini settings:&lt;br /&gt;&lt;strong style=&quot;color: #f00;&quot;&gt;open_basedir = &quot;%s&quot;&lt;/strong&gt;',
					'w3-total-cache' ),
				$path, ini_get( 'open_basedir' ) );
		}

		throw new \Exception( $error );
	}

	/**
	 * Creates maintenance mode file
	 *
	 * @param unknown $time
	 */
	static public function enable_maintenance_mode( $time = null ) {
		if ( is_null( $time ) )
			$time = 'time()';
		Util_WpFile::write_to_file( Util_Environment::site_path() . '/.maintenance', &quot;&lt;?php \$upgrading = $time; ?&gt;&quot; );
	}

	/**
	 * Deletes maintenance mode file
	 */
	static public function disable_maintenance_mode() {
		Util_WpFile::delete_file( Util_Environment::site_path() . '/.maintenance' );
	}

	/**
	 * Used to display Util_Environment_Exceptions in UI
	 *
	 * @param Util_Environment_Exceptions $exs
	 * @return array(before_errors = [], required_changes =&gt;, later_errors =&gt; [])
	 */
	static public function parse_environment_exceptions( $exs ) {
		$exceptions = $exs-&gt;exceptions();

		$commands = '';
		$required_changes = '';
		$before_errors = array();
		$later_errors = array();
		$operation_error_already_shown = false;

		foreach ( $exceptions as $ex ) {
			if ( $ex instanceof Util_WpFile_FilesystemOperationException ) {
				if ( !$operation_error_already_shown ) {
					$m = $ex-&gt;getMessage();
					if ( strlen( $m ) &gt; 0 ) {
						$before_errors[] = $m;
						// if multiple operations failed when
						// they tried to fix environment - show only first
						// otherwise can duplication information about
						// absense of permissions
						$operation_error_already_shown = true;
					}
					if ( $ex instanceof Util_WpFile_FilesystemWriteException ) {
						$required_changes .= sprintf(
							__( 'Create the &lt;strong&gt;%s&lt;/strong&gt; file and paste the following text into it: &lt;textarea&gt;%s&lt;/textarea&gt; &lt;br /&gt;',
								'w3-total-cache' ),
							$ex-&gt;filename(), esc_textarea( $ex-&gt;file_contents() ) );
					} else if ( $ex instanceof Util_WpFile_FilesystemModifyException ) {
							$modification_content = $ex-&gt;file_contents();
							if ( strlen( $modification_content ) &gt; 0 )
								$modification_content =
									'&lt;textarea style=&quot;height: 100px; width: 100%;&quot;&gt;' .
									esc_textarea( $modification_content ) . '&lt;/textarea&gt;';
							$required_changes .=
								$ex-&gt;modification_description() .
								$modification_content .
								'&lt;br /&gt;';
						} else if ( $ex instanceof Util_WpFile_FilesystemCopyException ) {
							$commands .= 'cp ' . $ex-&gt;source_filename() . ' ' .
								$ex-&gt;destination_filename() . '&lt;br /&gt;';
						} else if ( $ex instanceof Util_WpFile_FilesystemMkdirException ) {
							$commands .= 'mkdir ' . $ex-&gt;folder() . '&lt;br /&gt;';
							$commands .= 'chmod 777 ' . $ex-&gt;folder() . '&lt;br /&gt;';
						} else if ( $ex instanceof Util_WpFile_FilesystemRmException ) {
							$commands .= 'rm ' . $ex-&gt;filename() . '&lt;br /&gt;';
						} else if ( $ex instanceof Util_WpFile_FilesystemRmdirException ) {
							$commands .= 'rm -rf ' . $ex-&gt;folder() . '&lt;br /&gt;';
						} else if ( $ex instanceof Util_WpFile_FilesystemChmodException ) {
							$commands .= 'chmod 777 ' . $ex-&gt;filename() . '&lt;br /&gt;';
						}
				}
			} else if ( $ex instanceof Util_Environment_Exception ) {
					$t = $ex-&gt;technical_message();
					if ( strlen( $t ) &gt; 0 ) {
						$t = '&lt;br /&gt;' .
							'&lt;a class=&quot;w3tc_read_technical_info&quot; href=&quot;#&quot;&gt;' .
							__( 'Technical info', 'w3-total-cache' ).'&lt;/a&gt;' .
							'&lt;div class=&quot;w3tc_technical_info&quot; style=&quot;display: none&quot;&gt;' .
							$t . '&lt;/div&gt;';
					}

					$later_errors[] = $ex-&gt;getMessage() . $t;
				} else {
				// unknown command
				$later_errors[] = $ex-&gt;getMessage();
			}
		}

		if ( strlen( $commands ) &gt; 0 ) {
			$required_changes .= __( 'Execute next commands in a shell:', 'w3-total-cache' ) .
				'&lt;br&gt;&lt;strong&gt;' . $commands . '&lt;/strong&gt;';
		}

		return array(
			'before_errors' =&gt; $before_errors,
			'required_changes' =&gt; $required_changes,
			'later_errors' =&gt; $later_errors
		);
	}

	/**
	 *
	 *
	 * @return string[] error messages
	 */
	static public function deactivate_plugin() {
		$errors = array();
		try {
			$environment = Dispatcher::component( 'Root_Environment' );
			$environment-&gt;fix_after_deactivation();
			deactivate_plugins( plugin_basename( W3TC_FILE ) );
		} catch ( SelfTestExceptions $exs ) {
			$r = Util_Activation::parse_environment_exceptions( $exs );

			foreach ( $r['before_errors'] as $e )
				$errors[] = $e;

			if ( strlen( $r['required_changes'] ) &gt; 0 ) {
				$changes_style = 'border: 1px solid black; ' .
					'background: white; ' .
					'margin: 10px 30px 10px 30px; ' .
					'padding: 10px; display: none';
				$ftp_style = 'border: 1px solid black; background: white; ' .
					'margin: 10px 30px 10px 30px; ' .
					'padding: 10px; display: none';
				$ftp_form = str_replace( 'class=&quot;wrap&quot;', '',
					$exs-&gt;credentials_form() );
				$ftp_form = str_replace( '&lt;fieldset&gt;', '', $ftp_form );
				$ftp_form = str_replace( '&lt;/fieldset&gt;', '', $ftp_form );
				$ftp_form = str_replace( 'id=&quot;upgrade&quot; class=&quot;button&quot;',
					'id=&quot;upgrade&quot; class=&quot;button w3tc-button-save&quot;', $ftp_form );

				$error = sprintf( '
					%s
					&lt;table&gt;
					&lt;tr&gt;
					&lt;td&gt;%s&lt;/td&gt;
					&lt;td&gt;%s&lt;/td&gt;
					&lt;/tr&gt;
					&lt;tr&gt;
					&lt;td&gt;%s&lt;/td&gt;
					&lt;td&gt;%s&lt;/td&gt;
					&lt;/tr&gt;&lt;/table&gt;',
					__( '&lt;strong&gt;W3 Total Cache Error:&lt;/strong&gt; Files and directories could not be automatically deleted.' , 'w3-total-cache' ),
					__( 'Please execute commands manually' , 'w3-total-cache' ),
					__( 'or use FTP form to allow &lt;strong&gt;W3 Total Cache&lt;/strong&gt; make it automatically.' ,
						'w3-total-cache' ),
					Util_Ui::button(
						__( 'View required changes', 'w3-total-cache' ),
						'',
						'w3tc-show-required-changes'
					),
					Util_Ui::button(
						__( 'Update via FTP', 'w3-total-cache' ),
						'',
						'w3tc-show-ftp-form'
					)
				) . '&lt;div class=&quot;w3tc-required-changes&quot; style=&quot;' .
					$changes_style . '&quot;&gt;' . $r['required_changes'] . '&lt;/div&gt;' .
					'&lt;div class=&quot;w3tc-ftp-form&quot; style=&quot;' . $ftp_style . '&quot;&gt;' .
					$ftp_form . '&lt;/div&gt;';

				$errors[] = $error;
			}
			return $errors;
		}
	}
}
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