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package cc.andreasbaumann.grabbers.nzz;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.charset.StandardCharsets;
import java.io.File;
import java.io.BufferedReader;
import java.io.IOException;
import com.fasterxml.jackson.core.JsonParser.Feature;
import com.fasterxml.jackson.databind.ObjectMapper;
import picocli.CommandLine;
import picocli.CommandLine.Command;
import picocli.CommandLine.Option;
import picocli.CommandLine.Parameters;
import picocli.CommandLine.Help.Ansi;
import java.util.concurrent.Callable;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import com.microsoft.playwright.Playwright;
import com.microsoft.playwright.BrowserType;
import com.microsoft.playwright.Browser;
import com.microsoft.playwright.BrowserContext;
import com.microsoft.playwright.Page;
import com.microsoft.playwright.Download;
import com.microsoft.playwright.options.AriaRole;
import java.util.Locale;
import java.util.Arrays;
import java.util.Date;
import java.text.SimpleDateFormat;
public class Main
{
private static final Logger LOGGER = LogManager.getFormatterLogger( Main.class );
private static final String VERSION = "1.0";
public static final String USER_AGENT = "NZZ-Grabber/" + VERSION;
public static final Locale DEFAULT_LOCALE = new Locale( "de", "CH" );
public static final int DEFAULT_TIMEOUT = 60000;
public static final String DEFAULT_CONFGURATION = "config.json";
@Command( name = "nzzgatherer", mixinStandardHelpOptions = true, version = VERSION,
description = "Grabs NZZ ePaper PDFs and stores them locally.")
static class NZZGatherer implements Callable<Integer>
{
private Configuration configuration;
private Playwright playwright;
private BrowserType browserType;
private Browser browser = null;
private BrowserContext context;
private Locale locale = DEFAULT_LOCALE;
private Page page;
private void initializePlaywright( boolean headless )
{
LOGGER.info( "Starting playwright..." );
playwright = Playwright.create( );
browserType = playwright.chromium( );
browser = browserType.launch( new BrowserType.LaunchOptions( )
.setHeadless( headless )
.setArgs( Arrays.asList( "--disable-gpu" ) )
);
context = browser.newContext( new Browser.NewContextOptions( )
.setUserAgent( USER_AGENT )
.setLocale( locale.toString( ) )
);
}
private void logout( ) throws Exception
{
LOGGER.info( ">>> Logging out.." );
page.getByText( configuration.credentials.user ).click( );
page.getByText( "Abmelden" ).click( );
}
private void downloadCurrent( ) throws Exception
{
LOGGER.info( ">>> Downloading current PDF..." );
Download download = page.waitForDownload( ( ) -> {
page.locator( "div:nth-child(2) > span" ).first( ).click( );
});
File directory = new File( configuration.downloads.directory );
Date today = new Date( );
String timeStamp = new SimpleDateFormat( "yyyyMMdd").format( today );
File file = new File( directory, "NZZ_" + timeStamp + ".pdf" );
LOGGER.info( ">>> Saving to '" + file + "'.." );
download.saveAs( file.toPath( ) );
}
private void initializePage( ) throws Exception
{
LOGGER.info( ">>> Opening NZZ ePaper..." );
page = context.newPage( );
page.setDefaultTimeout( DEFAULT_TIMEOUT );
if( debug ) {
page.route( "**", route -> {
LOGGER.info( route.request( ).url( ) );
route.resume( );
} );
page.onLoad( p -> LOGGER.info( "Page loaded!" ) );
page.onDOMContentLoaded( p -> LOGGER.info( "Page DOM content loaded!" ) );
}
}
private void login( ) throws Exception
{
LOGGER.info( ">>> Opening NZZ ePaper.." );
page.navigate( "https://epaper.nzz.ch/" );
page.waitForSelector( ":text('Anmelden')" );
page.waitForLoadState( );
LOGGER.info( ">>> Navigate to login page.." );
page.getByText( "Anmelden" ).click( );
page.waitForSelector( ":text('E-Mail-Adresse')" );
page.waitForLoadState( );
LOGGER.info( ">>> Inserting email data.." );
page.getByPlaceholder( "E-Mail-Adresse" ).fill( configuration.credentials.login );
page.getByRole( AriaRole.BUTTON, new Page.GetByRoleOptions( ).setName( "Weiter" ) ).click( );
page.waitForLoadState( );
LOGGER.info( ">>> Inserting password.." );
page.getByRole( AriaRole.TEXTBOX, new Page.GetByRoleOptions( ).setName( "Passwort*" ) ).fill( configuration.credentials.password );
page.waitForLoadState( );
page.getByRole(AriaRole.BUTTON, new Page.GetByRoleOptions( ).setName( "Anmelden" )).click( );
page.waitForLoadState( );
LOGGER.info( ">>> Downloading current PDF.." );
Download download = page.waitForDownload(() -> {
page.locator("div:nth-child(2) > span").first( ).click( );
} );
Thread.sleep( 20000 );
}
private void initializeFromFile( Path configurationFile )
{
ObjectMapper objectMapper = new ObjectMapper( );
objectMapper.enable( Feature.ALLOW_UNQUOTED_FIELD_NAMES );
objectMapper.enable( Feature.ALLOW_COMMENTS );
try( BufferedReader configurationReader = Files.newBufferedReader( configurationFile, StandardCharsets.UTF_8 ) ) {
LOGGER.info( "Reading configuration from '" + configurationFile + "'.." );
configuration = objectMapper.readValue( configurationReader, Configuration.class );
} catch ( IOException e ) {
LOGGER.error( "Failed to read the configuration file '" + configurationFile + "':\n", e );
System.exit( 1 );
}
}
@Option( names = { "-c", "--config" }, description = "file (in JSON)", defaultValue = DEFAULT_CONFGURATION )
private String configFile = DEFAULT_CONFGURATION;
@Option( names = { "--download-current" }, description = "download only today's PDF" )
private boolean downloadCurrent = true;
@Option( names = { "--headless" }, description = "do not show browser" )
private boolean headless = true;
@Option( names = { "--debug" }, description = "show lots of debug output" )
private boolean debug = false;
@Override
public Integer call( ) throws Exception
{
initializeFromFile( new File( configFile ).toPath( ) );
initializePlaywright( headless );
initializePage( );
login( );
if( downloadCurrent ) {
downloadCurrent( );
}
logout( );
return 0;
}
}
public static void main( String... args )
{
try {
int exitCode = new CommandLine( new NZZGatherer( ) ).execute( args );
System.exit( exitCode );
} catch( Exception e ) {
LOGGER.error( e );
System.exit( 1 );
}
}
}
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