restructuring into packages.
[utils] / crawler / kiss / src / org / wamblee / crawler / kiss / main / KissCrawler.java
diff --git a/crawler/kiss/src/org/wamblee/crawler/kiss/main/KissCrawler.java b/crawler/kiss/src/org/wamblee/crawler/kiss/main/KissCrawler.java
new file mode 100644 (file)
index 0000000..6cdaa17
--- /dev/null
@@ -0,0 +1,356 @@
+/*
+ * Copyright 2005 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.wamblee.crawler.kiss.main;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.List;
+import java.util.Properties;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.mail.MessagingException;
+import javax.mail.Session;
+import javax.mail.internet.InternetAddress;
+import javax.xml.transform.TransformerException;
+
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.commons.mail.EmailException;
+import org.apache.commons.mail.HtmlEmail;
+import org.apache.xml.serialize.OutputFormat;
+import org.apache.xml.serialize.XMLSerializer;
+import org.w3c.dom.Document;
+import org.wamblee.crawler.Action;
+import org.wamblee.crawler.Configuration;
+import org.wamblee.crawler.Crawler;
+import org.wamblee.crawler.Page;
+import org.wamblee.crawler.PageException;
+import org.wamblee.crawler.impl.ConfigurationParser;
+import org.wamblee.crawler.impl.CrawlerImpl;
+import org.wamblee.crawler.kiss.guide.Channel;
+import org.wamblee.crawler.kiss.guide.PrintVisitor;
+import org.wamblee.crawler.kiss.guide.Program;
+import org.wamblee.crawler.kiss.guide.TVGuide;
+import org.wamblee.crawler.kiss.guide.Time;
+import org.wamblee.crawler.kiss.guide.TimeInterval;
+import org.wamblee.crawler.kiss.notification.NotificationException;
+import org.wamblee.crawler.kiss.notification.Notifier;
+import org.wamblee.io.FileResource;
+import org.wamblee.xml.XSLT;
+
+/**
+ * The KiSS crawler for automatic recording of interesting TV shows.
+ * 
+ */
+public class KissCrawler {
+
+    private static final Log LOG = LogFactory.getLog(KissCrawler.class);
+
+    /**
+     * Log file name for the crawler.
+     */
+    private static final String LOG_FILE = "kiss.log";
+
+    /**
+     * Start URL of the electronic programme guide.
+     */
+    private static final String START_URL = "http://epg.kml.kiss-technology.com/login_core.php";
+
+    /**
+     * Crawler configuration file.
+     */
+    private static final String CRAWLER_CONFIG = "config.xml";
+
+    /**
+     * Configuration file describing interesting programs.
+     */
+    private static final String PROGRAM_CONFIG = "programs.xml";
+
+    /**
+     * Regular expression for matching time interval strings in the retrieved
+     * pages.
+     */
+    private static final String TIME_REGEX = "([0-9]{2}):([0-9]{2})[^0-9]*([0-9]{2}):([0-9]{2}).*";
+
+    /**
+     * Compiled pattern for the time regular expression.
+     */
+    private Pattern _pattern;
+
+    /**
+     * Runs the KiSS crawler.
+     * 
+     * @param aArgs
+     *            Arguments, currently all ignored because they are hardcoded.
+     * @throws Exception
+     *             In case of problems.
+     */
+    public static void main(String[] aArgs) throws Exception {
+        new KissCrawler(START_URL, CRAWLER_CONFIG, PROGRAM_CONFIG);
+    }
+
+    /**
+     * Constructs the crawler. This retrieves the TV guide by crawling the KiSS
+     * EPG guide, filters the guide for interesting programs, tries to record
+     * them, and sends a summary mail to the user.
+     * 
+     * @param aStartUrl
+     *            Start URL of the electronic programme guide.
+     * @param aCrawlerConfig
+     *            Configuration file for the crawler.
+     * @param aProgramConfig
+     *            Configuration file describing interesting shows.
+     * @throws IOException
+     *             In case of problems reading files.
+     * @throws MessagingException
+     *             In case of problems sending a mail notification.
+     */
+    public KissCrawler(String aStartUrl, String aCrawlerConfig,
+            String aProgramConfig) throws IOException, MessagingException {
+
+        _pattern = Pattern.compile(TIME_REGEX);
+
+        FileOutputStream fos = new FileOutputStream(new File(LOG_FILE));
+        PrintStream os = new PrintStream(fos);
+
+        try {
+            HttpClient client = new HttpClient();
+            //client.getHostConfiguration().setProxy("127.0.0.1", 3128);
+
+            Crawler crawler = createCrawler(aCrawlerConfig, os, client);
+            InputStream programConfigFile = new FileInputStream(new File(
+                    aProgramConfig));
+            ProgramConfigurationParser parser = new ProgramConfigurationParser();
+            parser.parse(programConfigFile);
+            List<ProgramFilter> programFilters = parser.getFilters(); 
+            
+            Page page = getStartPage(aStartUrl, crawler);
+            TVGuide guide = createGuide(page);
+            PrintVisitor printer = new PrintVisitor(System.out);
+            guide.accept(printer);
+            processResults(programFilters, guide, parser.getNotifier());
+        } finally {
+            os.flush();
+            os.close();
+            System.out.println("Output written on '" + LOG_FILE + "'");
+        }
+    }
+
+    /**
+     * Records interesting shows.
+     * 
+     * @param aProgramCondition
+     *            Condition determining which shows are interesting.
+     * @param aGuide
+     *            Television guide.
+     * @throws MessagingException
+     *             In case of problems sending a summary mail.
+     */
+    private void processResults(List<ProgramFilter> aProgramCondition,
+            TVGuide aGuide, Notifier aNotifier) throws MessagingException {
+        ProgramActionExecutor executor = new ProgramActionExecutor();
+        for (ProgramFilter filter : aProgramCondition) {
+            List<Program> programs = filter.apply(aGuide);
+            ProgramAction action = filter.getAction();
+            for (Program program : programs) {
+                action.execute(program, executor);
+            }
+        }
+        executor.commit();
+        try {
+            aNotifier.send(executor.getXmlReport());
+        } catch (NotificationException e) { 
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Creates the crawler.
+     * 
+     * @param aCrawlerConfig
+     *            Crawler configuration file.
+     * @param aOs
+     *            Logging output stream for the crawler.
+     * @param aClient
+     *            HTTP Client to use.
+     * @return Crawler.
+     * @throws FileNotFoundException
+     *             In case configuration files cannot be found.
+     */
+    private Crawler createCrawler(String aCrawlerConfig, PrintStream aOs,
+            HttpClient aClient) throws FileNotFoundException {
+        ConfigurationParser parser = new ConfigurationParser(aOs);
+        InputStream crawlerConfigFile = new FileInputStream(new File(
+                aCrawlerConfig));
+        Configuration config = parser.parse(crawlerConfigFile);
+        Crawler crawler = new CrawlerImpl(aClient, config);
+        return crawler;
+    }
+
+    /**
+     * Gets the start page of the electronic programme guide. This involves
+     * login and navigation to a suitable start page after logging in.
+     * 
+     * @param aStartUrl
+     *            URL of the electronic programme guide.
+     * @param aCrawler
+     *            Crawler to use.
+     * @return Starting page.
+     */
+    private Page getStartPage(String aStartUrl, Crawler aCrawler) {
+        try {
+            Page page = aCrawler.getPage(aStartUrl);
+            return page.getAction("channels-favorites").execute();
+        } catch (PageException e) {
+            throw new RuntimeException(
+                    "Could not login to electronic program guide", e);
+        }
+    }
+
+    /**
+     * Creates the TV guide by web crawling.
+     * 
+     * @param aPage
+     *            Starting page.
+     * @return TV guide.
+     */
+    private TVGuide createGuide(Page aPage) {
+        LOG.info("Obtaining full TV guide");
+        Action[] actions = aPage.getActions();
+        List<Channel> channels = new ArrayList<Channel>();
+        for (Action action : actions) {
+            try {
+                LOG.info("Getting channel info for '" + action.getName() + "'");
+                Channel channel = createChannel(action.getName(), action
+                        .execute().getAction("right-now").execute());
+                channels.add(channel);
+                if (SystemProperties.isDebugMode()) {
+                    break; // Only one channel is crawled.
+                }
+            } catch (PageException e) {
+                LOG.error("Could not create channel information for '"
+                        + action.getName() + "'", e);
+            }
+        }
+        return new TVGuide(channels);
+    }
+
+    /**
+     * Create channel information for a specific channel.
+     * 
+     * @param aChannel
+     *            Channel name.
+     * @param aPage
+     *            Starting page for the channel.
+     * @return Channel.
+     */
+    private Channel createChannel(String aChannel, Page aPage) {
+        LOG.info("Obtaining program for " + aChannel);
+        Action[] programActions = aPage.getActions();
+        List<Program> programs = new ArrayList<Program>();
+        for (Action action : programActions) {
+            String time = action.getContent().element("time").getText().trim();
+            Matcher matcher = _pattern.matcher(time);
+            if (matcher.matches()) {
+                Time begin = new Time(Integer.parseInt(matcher.group(1)),
+                        Integer.parseInt(matcher.group(2)));
+                Time end = new Time(Integer.parseInt(matcher.group(3)), Integer
+                        .parseInt(matcher.group(4)));
+                TimeInterval interval = new TimeInterval(begin, end);
+                String description = "";
+                String keywords = "";
+                if (!SystemProperties.isNoProgramDetailsRequired()) {
+                    try {
+                        Page programInfo = action.execute();
+                        description = programInfo.getContent().element(
+                                "description").getText().trim();
+                        keywords = programInfo.getContent().element("keywords")
+                                .getText().trim();
+                    } catch (PageException e) {
+                        LOG.warn(
+                                "Program details could not be determined for '"
+                                        + action.getName() + "'", e);
+                    }
+                }
+                Program program = new Program(aChannel, action.getName(),
+                        description, keywords, interval, action);
+
+                LOG.info("Got program " + program);
+                programs.add(program);
+            }
+        }
+        return new Channel(aChannel, programs);
+    }
+
+    /**
+     * Sends a summary mail to the user.
+     * 
+     * @param aText
+     *            Text of the mail.
+     * @throws MessagingException
+     *             In case of problems sending mail.
+     */
+    private void sendMail(ProgramActionExecutor aExecutor) throws MessagingException {
+        String textReport = aExecutor.getReport();
+        System.out.println("Text report: \n" + textReport);
+        System.out.println("XML report:\n" + aExecutor.getXmlReport().asXML());
+        
+        
+        Properties props = new Properties();
+        props.put("mail.transport.protocol", "smtp");
+        props.put("mail.smtp.host", "falcon");
+        props.put("mail.smtp.port", "25");
+
+        Session mailSession = Session.getInstance(props);
+        InternetAddress from = new InternetAddress("erik@brakkee.org");
+    
+        HtmlEmail mail = new HtmlEmail();
+        mail.setMailSession(mailSession);
+        try {
+            mail.setFrom("erik@brakkee.org");
+            mail.setTo(Arrays.asList(new InternetAddress[] { from }));
+            mail.setSentDate(new Date());
+            mail.setSubject("KiSS Crawler Update");
+            String html = aExecutor.getXmlReport().asXML(); 
+            Document document = new XSLT().transform(html.getBytes(), new FileResource(new File("reportToHtml.xsl")));
+            ByteArrayOutputStream xhtml = new ByteArrayOutputStream();
+            XMLSerializer serializer = new XMLSerializer(xhtml, new OutputFormat());
+            serializer.serialize(document);
+            mail.setHtmlMsg(xhtml.toString());
+            mail.setTextMsg(textReport);
+            mail.send();
+        } catch (EmailException e) {
+            throw new RuntimeException(e);
+        } catch (TransformerException e) { 
+            throw new RuntimeException(e);
+        } catch (IOException e) { 
+            throw new RuntimeException(e);
+        }
+    }
+
+}