package be.nikiroo.gofetch.support; import java.io.IOException; import java.net.URL; import java.util.AbstractMap; import java.util.ArrayList; import java.util.List; import java.util.Map.Entry; import org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.jsoup.nodes.Node; import org.jsoup.nodes.TextNode; import be.nikiroo.gofetch.data.Comment; import be.nikiroo.gofetch.data.Story; /** * Support https://lwn.net/. * * @author niki */ public class LWN extends BasicSupport { @Override public String getDescription() { return "LWN: Linux Weekly Newsletter"; } @Override public void fetch(Story story) throws IOException { // Do not try the paid-for stories... if (!story.getTitle().startsWith("[$]")) { super.fetch(story); } else { String fullContent = "[$] Sorry, this article is currently available to LWN suscribers only [https://lwn.net/subscribe/]."; story.setFullContent(fullContent); story.setComments(new ArrayList()); } } @Override protected List> getUrls() throws IOException { List> urls = new ArrayList>(); urls.add(new AbstractMap.SimpleEntry(new URL( "https://lwn.net/"), "")); return urls; } @Override protected List getArticles(Document doc) { return doc.getElementsByClass("pure-u-1"); } @Override protected String getArticleId(Document doc, Element article) { return getArticleIntUrl(doc, article).replaceAll("[^0-9]", ""); } @Override protected String getArticleTitle(Document doc, Element article) { Element title = article.getElementsByClass("Headline").first(); if (title != null) { return title.text(); } return ""; } @Override protected String getArticleAuthor(Document doc, Element article) { String author = ""; String details = getArticleDetailsReal(article); int pos = details.indexOf(" by "); if (pos >= 0) { author = details.substring(pos + " by ".length()).trim(); } return author; } @Override protected String getArticleDate(Document doc, Element article) { String date = ""; String details = getArticleDetailsReal(article); int pos = details.indexOf(" Posted "); if (pos >= 0) { date = details.substring(pos + " Posted ".length()).trim(); pos = date.indexOf(" by "); if (pos >= 0) { date = date.substring(0, pos).trim(); } } return date; } @Override protected String getArticleCategory(Document doc, Element article, String currentCategory) { String categ = ""; String details = getArticleDetailsReal(article); int pos = details.indexOf("]"); if (pos >= 0) { categ = details.substring(1, pos).trim(); } return categ; } @Override protected String getArticleDetails(Document doc, Element article) { return ""; // We actually extract all the values } @Override protected String getArticleIntUrl(Document doc, Element article) { String intUrl = ""; for (Element idElem : article.getElementsByTag("a")) { // Last link is the story link intUrl = idElem.absUrl("href"); int pos = intUrl.indexOf("#Comments"); if (pos >= 0) { intUrl = intUrl.substring(0, pos - 1); } } return intUrl; } @Override protected String getArticleExtUrl(Document doc, Element article) { return ""; } @Override protected String getArticleContent(Document doc, Element article) { Element listing = article.getElementsByClass("BlurbListing").first(); if (listing != null && listing.children().size() >= 2) { String content = ""; // All but the first and two last children for (int i = 1; i < listing.children().size() - 2; i++) { Element e = listing.children().get(i); content = content.trim() + " " + e.text().trim(); } return content; } return ""; } @Override protected Element getFullArticle(Document doc) { return doc.getElementsByClass("ArticleText").first(); } @Override protected List getFullArticleCommentPosts(Document doc, URL intUrl) { return doc.getElementsByClass("lwn-u-1"); } @Override protected ElementProcessor getElementProcessorFullArticle() { return new BasicElementProcessor() { @Override public boolean ignoreNode(Node node) { if (node instanceof Element) { Element el = (Element) node; if ("Log in".equals(el.text().trim())) { return true; } } else if (node instanceof TextNode) { TextNode text = (TextNode) node; String t = text.text().trim(); if (t.equals("(") || t.equals("to post comments)")) { return true; } } return false; } }; } @Override protected List getCommentCommentPosts(Document doc, Element container) { List commentElements = new ArrayList(); if (container != null) { for (Element possibleCommentElement : container.children()) { if (possibleCommentElement.hasClass("CommentBox")) { commentElements.add(possibleCommentElement); } else if (possibleCommentElement.hasClass("Comment")) { commentElements.add(possibleCommentElement); } } } return commentElements; } @Override protected String getCommentId(Element post) { return post.id(); } @Override protected String getCommentAuthor(Element post) { Element detailsE = post.getElementsByClass("CommentPoster").first(); if (detailsE != null) { String details = detailsE.text(); int pos = details.lastIndexOf(" by "); if (pos >= 0) { details = details.substring(pos + " by ".length()).trim(); if (details.startsWith("Posted ")) { return details.substring("Posted ".length()).trim(); } } } return ""; } @Override protected String getCommentTitle(Element post) { Element title = post.getElementsByClass("CommentTitle").first(); if (title != null) { return title.text(); } return ""; } @Override protected String getCommentDate(Element post) { Element detailsE = post.getElementsByClass("CommentPoster").first(); if (detailsE != null) { String details = detailsE.text(); int pos = details.lastIndexOf(" by "); if (pos >= 0) { return details.substring(0, pos).trim(); } } return ""; } @Override protected Element getCommentContentElement(Element post) { return post.getElementsByClass("CommentBody").first(); } @Override protected ElementProcessor getElementProcessorComment() { return new BasicElementProcessor() { @Override public String processText(String text) { while (text.startsWith(">")) { // comments text = text.substring(1).trim(); } return text; } @Override public boolean detectQuote(Node node) { if (node instanceof Element) { Element elementNode = (Element) node; if (elementNode.tagName().equals("blockquote") || elementNode.hasClass("QuotedText")) { return true; } } return false; } @Override public boolean ignoreNode(Node node) { if (node instanceof Element) { Element elementNode = (Element) node; if (elementNode.hasClass("CommentPoster")) { return true; } } return false; } }; } private String getArticleDetailsReal(Element article) { Element listing = article.getElementsByClass("BlurbListing").first(); // Valid articles have 2+ listings if (listing != null && listing.children().size() >= 2) { return listing.children().get(0).text(); } return ""; } }