jtulach@0: package cz.xelfi.feedbook;
jtulach@0: 
jtulach@1: import com.google.code.facebookapi.FacebookException;
jtulach@0: import com.google.code.facebookapi.FacebookJaxbRestClient;
jtulach@0: import com.google.code.facebookapi.Permission;
jtulach@1: import com.sun.syndication.feed.rss.Channel;
jtulach@1: import com.sun.syndication.feed.rss.Item;
jtulach@1: import com.sun.syndication.io.WireFeedInput;
jtulach@4: import java.awt.Desktop;
jtulach@1: import java.io.IOException;
jtulach@0: import java.net.URI;
jtulach@1: import java.net.URISyntaxException;
jtulach@1: import java.net.URL;
jtulach@1: import java.util.prefs.Preferences;
jtulach@1: import org.xml.sax.InputSource;
jtulach@0: 
jtulach@0: public class Main {
jtulach@7:     private static String APP_KEY;
jtulach@7:     private static String APP_SEC;
jtulach@7:     private static String APP_FEED;
jtulach@0:     
jtulach@1:     
jtulach@9:     // BEGIN: feedbook-login
jtulach@1:     private static String login() throws IOException, FacebookException, URISyntaxException {
jtulach@0:         FacebookJaxbRestClient login = new FacebookJaxbRestClient(APP_KEY, APP_SEC);
jtulach@0:         final String token = login.auth_createToken();
jtulach@0:         URI u = new URI("http://www.facebook.com/login.php?api_key=" + APP_KEY + "&auth_token=" + token);
jtulach@5:         String msg = "authentication";
jtulach@5:         browser(msg, u);
jtulach@5:         return login.auth_getSession(token, false); 
jtulach@5:     }
jtulach@9:     // END: feedbook-login
jtulach@5: 
jtulach@5:     private static void browser(String msg, URI u) throws IOException {
jtulach@5:         System.out.println(msg + ": " + u);
jtulach@4:         try {
jtulach@4:             Desktop.getDesktop().browse(u);
jtulach@4:         } catch (Exception ex) {
jtulach@4:             Runtime.getRuntime().exec("xdg-open " + u);
jtulach@4:         }
jtulach@0:         System.out.println("Visit the browser and press enter...");
jtulach@0:         System.in.read();
jtulach@1:     }
jtulach@1:     
jtulach@1:     public static void main( String[] args) throws Exception {
jtulach@7:         Preferences prefs = Preferences.userNodeForPackage(Main.class);
jtulach@7:         if (args.length == 3) {
jtulach@7:             prefs.put("id", args[0]);
jtulach@7:             prefs.put("secret", args[1]);
jtulach@7:             prefs.put("feed", args[2]);
jtulach@7:         } else {
jtulach@7:             if (args.length != 0) {
jtulach@7:                 usage();
jtulach@7:                 return;
jtulach@7:             }
jtulach@7:         }
jtulach@7:         
jtulach@7:         
jtulach@7:         APP_KEY = prefs.get("id", null);
jtulach@7:         APP_SEC = prefs.get("secret", null);
jtulach@7:         APP_FEED = prefs.get("feed", null);
jtulach@7:         
jtulach@7:         if (APP_FEED == null || APP_SEC == null || APP_KEY == null) {
jtulach@7:             usage();
jtulach@7:             return;
jtulach@7:         }
jtulach@7:         
jtulach@1:         WireFeedInput rssInput = new WireFeedInput();
jtulach@7:         URL rssUrl = new URL(APP_FEED);
jtulach@1:         Channel rss = (Channel)rssInput.build(new InputSource(rssUrl.openStream()));;
jtulach@0:         
jtulach@1:         
jtulach@1:         FacebookJaxbRestClient fb;
jtulach@3:         Long user;
jtulach@1:         for (;;) {
jtulach@1:             final String stored = prefs.get("session", null);
jtulach@1:             if (stored != null) {
jtulach@3:                 try {
jtulach@3:                     fb = new FacebookJaxbRestClient(APP_KEY, APP_SEC, stored);
jtulach@3:                     user = fb.users_getLoggedInUser();
jtulach@3:                     break;
jtulach@3:                 } catch (FacebookException ex) {
jtulach@3:                     System.err.println(ex.getMessage());
jtulach@3:                 }
jtulach@1:             }
jtulach@1:             final String session = login();
jtulach@1:             fb = new FacebookJaxbRestClient(APP_KEY, APP_SEC, session);
jtulach@3:             user = fb.users_getLoggedInUser();
jtulach@1:             prefs.put("session", session);
jtulach@1:             break;
jtulach@1:         }
jtulach@0:         
jtulach@9:         // BEGIN: feedbook-permission
jtulach@5:         while (!fb.users_hasAppPermission(Permission.SHARE_ITEM)) {
jtulach@5:             URI u = new URI("https://graph.facebook.com/oauth/authorize?"
jtulach@5:                     + "client_id=" + APP_KEY
jtulach@5:                     + "&redirect_uri=http://www.facebook.com/connect/login_success.html"
jtulach@5:                     + "&scope=publish_stream");
jtulach@5:             browser("Need permission to publish links", u);
jtulach@5:         }
jtulach@9:         // END: feedbook-permission
jtulach@5:         Preferences n = prefs.node("feeds");
jtulach@6:         int cnt = 0;
jtulach@5:         for (Object o : rss.getItems()) {
jtulach@5:             Item item = (Item) o;
jtulach@5:             String hex = Integer.toHexString(item.getLink().hashCode());
jtulach@5:             if (n.getLong(hex, -1L) != -1L) {
jtulach@5:                 continue;
jtulach@2:             }
jtulach@6:             cnt++;
jtulach@9:             // BEGIN: feedbook-publish-link
jtulach@9:             System.out.printf(
jtulach@9:                 "link: %s date: %s title: %s\n", 
jtulach@9:                 item.getLink(), item.getPubDate(), item.getTitle()
jtulach@9:             );
jtulach@5:             Long ok = fb.links_post(user, item.getLink(), item.getTitle());
jtulach@5:             System.out.println("posted as " + ok);
jtulach@9:             // END: feedbook-publish-link
jtulach@5:             n.putLong(hex, ok);
jtulach@5:             n.put(hex + ".url", item.getLink());
jtulach@0:         }
jtulach@6:         System.out.println("Published " + cnt + " feed item(s)");
jtulach@0:     }
jtulach@7: 
jtulach@7:     private static void usage() {
jtulach@7:         System.out.println("Invoke with three parameters: "
jtulach@7:                 + "<facebook_app_key> "
jtulach@7:                 + "<facebook_app_secret "
jtulach@7:                 + "<rss_feed_url>");
jtulach@7:     }
jtulach@0: }