src/main/java/pnews/Main.java

   1 package pnews;
   2
   3 import java.io.BufferedWriter;
   4 import java.io.File;
   5 import java.io.IOException;
   6 import java.net.MalformedURLException;
   7 import java.net.URL;
   8 import java.nio.charset.StandardCharsets;
   9 import java.nio.file.Files;
  10 import java.security.KeyManagementException;
  11 import java.security.NoSuchAlgorithmException;
  12 import java.security.cert.X509Certificate;
  13 import java.util.ArrayList;
  14 import java.util.Comparator;
  15 import java.util.Date;
  16 import java.util.HashMap;
  17 import java.util.HashSet;
  18 import java.util.List;
  19 import java.util.Map;
  20 import java.util.Set;
  21 import java.util.logging.Logger;
  22
  23 import javax.net.ssl.SSLContext;
  24 import javax.net.ssl.TrustManager;
  25 import javax.net.ssl.X509TrustManager;
  26
  27 import org.jsoup.Jsoup;
  28
  29 import com.rometools.rome.feed.synd.SyndEnclosure;
  30 import com.rometools.rome.feed.synd.SyndEntry;
  31 import com.rometools.rome.feed.synd.SyndFeed;
  32 import com.rometools.rome.io.FeedException;
  33 import com.rometools.rome.io.SyndFeedInput;
  34 import com.rometools.rome.io.XmlReader;
  35
  36 public class Main {
  37         private static final Logger LOG = Logger.getLogger(Main.class.getName());
  38
  39         static {
  40                 TrustManager[] mgrs;
  41                 SSLContext sc;
  42
  43                 mgrs = new TrustManager[]{
  44                                 new X509TrustManager() {
  45                                         public java.security.cert.X509Certificate[] getAcceptedIssuers() {
  46                                                 return null;
  47                                         }
  48
  49                                         public void checkClientTrusted(X509Certificate[] certs, String authType) {
  50                                         }
  51
  52                                         public void checkServerTrusted(X509Certificate[] certs, String authType) {
  53                                         }
  54                                 }
  55                 };
  56
  57                 try {
  58                         sc = SSLContext.getInstance("SSL");
  59
  60                         sc.init(null, mgrs, new java.security.SecureRandom());
  61                         SSLContext.setDefault(sc);
  62                 } catch (NoSuchAlgorithmException | KeyManagementException e) {
  63                         e.printStackTrace();
  64                 }
  65         }
  66
  67         private static void addArticles(Category cat, SyndFeed feed, List<Article> articles) {
  68                 String thumbnail;
  69                 String desc;
  70                 Date date;
  71
  72                 for (SyndEntry entry: feed.getEntries()) {
  73                         thumbnail = null;
  74                         for (SyndEnclosure e: entry.getEnclosures()) {
  75                                 if (e.getType().startsWith("image/"))
  76                                         thumbnail = e.getUrl();
  77                                 break;
  78                         }
  79
  80                         if (entry.getDescription() != null) {
  81                                 desc = Jsoup.parse(entry.getDescription().getValue()).text();
  82                         } else {
  83                                 desc = null;
  84                                 LOG.severe("No description for " + feed.getTitle() + " - " + entry.getTitle());
  85                         }
  86
  87                         date = entry.getPublishedDate();
  88                         if (date == null)
  89                                 date = entry.getUpdatedDate();
  90
  91                         articles.add(new Article(entry.getLink(),
  92                                                  cat,
  93                                                  entry.getTitle(),
  94                                                  desc,
  95                                                  thumbnail,
  96                                                  date,
  97                                                  feed.getTitle()));
  98                 }
  99         }
 100
 101         private static SyndFeed getSyndFeed(String u) throws IllegalArgumentException, FeedException, MalformedURLException, IOException {
 102                 try (XmlReader reader = new XmlReader(new URL(u))) {
 103                         return new SyndFeedInput().build(reader);
 104                 }
 105         }
 106
 107         private static Map<Category, String[]> getFeeds() {
 108                 Map<Category, String[]> result;
 109
 110                 result = new HashMap<>();
 111
 112                 result.put(Category.TOP,
 113                            new String[] {
 114                                            "http://www.francetvinfo.fr/titres.rss",
 115                                            "http://www.france24.com/fr/actualites/rss",
 116                                            "https://www.franceinter.fr/rss/a-la-une.xml",
 117                                            "http://www.rfi.fr/general/rss",
 118                                            "http://www.bfmtv.com/rss/info/flux-rss/flux-toutes-les-actualites/"
 119                            });
 120
 121                 result.put(Category.SPORT,
 122                            new String[] { "http://www.france24.com/fr/sports/rss" });
 123
 124                 result.put(Category.SPORT,
 125                                    new String[] { "http://www.france24.com/fr/sports/rss" });
 126
 127                 result.put(Category.FRANCE,
 128                                 new String[] { "http://www.france24.com/fr/france/rss",
 129                                                "http://www.rfi.fr/france/rss"});
 130
 131                 result.put(Category.EUROPE,
 132                                 new String[] { "http://www.france24.com/fr/europe/rss" });
 133
 134                 result.put(Category.ECO,
 135                                 new String[] { "http://www.france24.com/fr/economie/rss",
 136                                                "http://www.rfi.fr/economie/rss" });
 137
 138                 result.put(Category.ESSONNE,
 139                                 new String[] { "https://www.essonneinfo.fr/feed/" });
 140
 141                 result.put(Category.TECHNOLOGIE,
 142                                 new String[] { "http://feeds.feedburner.com/lesnumeriques/news",
 143                                                "http://www.zdnet.fr/feeds/rss/actualites/"});
 144
 145                 return result;
 146         }
 147
 148         private static List<Article> getArticles(Category cat) throws IllegalArgumentException, MalformedURLException, FeedException, IOException {
 149                 List<Article> articles;
 150                 String[] feeds;
 151                 Set<String> links;
 152
 153                 articles = new ArrayList<>();
 154
 155                 feeds = getFeeds().get(cat);
 156
 157                 if (feeds != null)
 158                         for (String str: feeds)
 159                                 addArticles(cat, getSyndFeed(str), articles);
 160                 else
 161                         LOG.severe("No feed for category " + cat);
 162
 163                 links = new HashSet<>(articles.size());
 164                 for (Article a: articles) {
 165                         if (links.contains(a.link))
 166                                 LOG.severe(a.link + "is not uniq");
 167                         else
 168                                 links.add(a.link);
 169                 }
 170
 171                 articles.sort(new Comparator<Article> () {
 172                         @Override
 173                         public int compare(Article o1, Article o2) {
 174                                 return o2.publicationDate.compareTo(o1.publicationDate);
 175                         }
 176                 });
 177
 178                 return articles;
 179         }
 180
 181         private static void writeHTMLFile(Category cat) throws IllegalArgumentException, MalformedURLException, FeedException, IOException {
 182                 List<Article> articles;
 183                 String html;
 184                 File f;
 185
 186                 articles = getArticles(cat);
 187
 188                 html = HTML.toHTML(articles, cat);
 189
 190                 f = new File(cat.getId() + ".html");
 191
 192                 try (BufferedWriter writer = Files.newBufferedWriter(f.toPath(), StandardCharsets.UTF_8)) {
 193                         writer.write(html);
 194                 }
 195         }
 196
 197         public static void main(String[] args) throws IllegalArgumentException, FeedException, IOException {
 198                 System.out.println("pnews");
 199
 200                 for (Category cat: Category.values())
 201                         writeHTMLFile(cat);
 202
 203                 System.out.println("done");
 204         }
 205 }