| 1 | package be.nikiroo.gofetch.support; |
| 2 | |
| 3 | import be.nikiroo.gofetch.data.Story; |
| 4 | import be.nikiroo.gofetch.data.Comment; |
| 5 | |
| 6 | import java.io.IOException; |
| 7 | import java.io.UnsupportedEncodingException; |
| 8 | import java.net.URL; |
| 9 | import java.net.URLDecoder; |
| 10 | import java.util.AbstractMap; |
| 11 | import java.util.ArrayList; |
| 12 | import java.util.List; |
| 13 | import java.util.LinkedList; |
| 14 | import java.util.Map.Entry; |
| 15 | import java.util.Map; |
| 16 | import java.util.HashMap; |
| 17 | import java.util.Date; |
| 18 | import java.text.SimpleDateFormat; |
| 19 | |
| 20 | import org.jsoup.nodes.Document; |
| 21 | import org.jsoup.nodes.Element; |
| 22 | import org.jsoup.nodes.Node; |
| 23 | import org.jsoup.select.Elements; |
| 24 | |
| 25 | /** |
| 26 | * Support <a href="https://www.reddit.com/">https://www.reddit.com/</a>. |
| 27 | * |
| 28 | * @author niki |
| 29 | */ |
| 30 | public class Reddit extends BasicSupport { |
| 31 | @Override |
| 32 | public String getDescription() { |
| 33 | return "Reddit: The front page of the internet"; |
| 34 | } |
| 35 | |
| 36 | @Override |
| 37 | protected List<Entry<URL, String>> getUrls() throws IOException { |
| 38 | List<Entry<URL, String>> urls = new ArrayList<Entry<URL, String>>(); |
| 39 | String base = "https://www.reddit.com/r/"; |
| 40 | urls.add(new AbstractMap.SimpleEntry<URL, String>( |
| 41 | new URL(base + "linux_gaming" + "/new/"), "linux_gaming" |
| 42 | )); |
| 43 | |
| 44 | return urls; |
| 45 | } |
| 46 | |
| 47 | @Override |
| 48 | protected List<Element> getArticles(Document doc) { |
| 49 | List<Element> list = doc.getElementsByClass("thing"); |
| 50 | if (list.isEmpty()) { |
| 51 | list = doc.getElementsByClass("Post"); |
| 52 | } |
| 53 | if (list.isEmpty()) { |
| 54 | list = doc.getElementsByClass("scrollerItem"); |
| 55 | } |
| 56 | |
| 57 | return list; |
| 58 | } |
| 59 | |
| 60 | @Override |
| 61 | protected String getArticleId(Document doc, Element article) { |
| 62 | String date = getArticleDate(doc, article); |
| 63 | String title = getArticleTitle(doc, article); |
| 64 | |
| 65 | String id = (date + "_" + title).replaceAll("[^a-zA-Z0-9_-]", "_"); |
| 66 | if (id.length() > 40) { |
| 67 | id = id.substring(0, 40); |
| 68 | } |
| 69 | |
| 70 | return id; |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | protected String getArticleTitle(Document doc, Element article) { |
| 75 | Elements els = article.getElementsByAttributeValue( |
| 76 | "data-event-action", "title"); |
| 77 | if (els == null || els.isEmpty()) { |
| 78 | els = article.getElementsByTag("h2"); |
| 79 | } |
| 80 | |
| 81 | return els.first().text().trim(); |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | protected String getArticleAuthor(Document doc, Element article) { |
| 86 | return article.getElementsByAttributeValueStarting( |
| 87 | "href", "/user/" |
| 88 | ).text().trim(); |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | protected String getArticleDate(Document doc, Element article) { |
| 93 | Element el = article.getElementsByClass("live-timestamp").first(); |
| 94 | if (el == null) { |
| 95 | el = article.getElementsByAttributeValue( |
| 96 | "data-click-id", "timestamp").first(); |
| 97 | } |
| 98 | |
| 99 | String dateAgo = el.text().trim(); |
| 100 | return new SimpleDateFormat("yyyy-MM-dd_HH-mm").format(getDate(dateAgo)); |
| 101 | } |
| 102 | |
| 103 | @Override |
| 104 | protected String getArticleCategory(Document doc, Element article, |
| 105 | String currentCategory) { |
| 106 | Elements categEls = article.getElementsByAttributeValueStarting( |
| 107 | "href", "/r/" + currentCategory + "/search=?q=flair_name" |
| 108 | ); |
| 109 | |
| 110 | if (categEls.size() > 0) { |
| 111 | return currentCategory + ", " |
| 112 | + categEls.first().text().trim(); |
| 113 | } |
| 114 | |
| 115 | return currentCategory; |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | protected String getArticleDetails(Document doc, Element article) { |
| 120 | return ""; |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | protected String getArticleIntUrl(Document doc, Element article) { |
| 125 | String url = article.absUrl("data-permalink"); |
| 126 | if (url == null || url.isEmpty()) { |
| 127 | url = article.getElementsByAttributeValue( |
| 128 | "data-click-id", "timestamp").first().absUrl("href"); |
| 129 | } |
| 130 | |
| 131 | return url; |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | protected String getArticleExtUrl(Document doc, Element article) { |
| 136 | Elements els = article.getElementsByAttributeValue( |
| 137 | "data-event-action", "title"); |
| 138 | if (els == null || els.isEmpty()) { |
| 139 | els = article.getElementsByAttributeValue( |
| 140 | "data-click-id", "body"); |
| 141 | } |
| 142 | |
| 143 | Element url = els.first(); |
| 144 | if (!url.attr("href").trim().startsWith("/")) { |
| 145 | return url.absUrl("href"); |
| 146 | } |
| 147 | |
| 148 | return ""; |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | protected String getArticleContent(Document doc, Element article) { |
| 153 | Elements els = article.getElementsByClass("h2"); |
| 154 | if (els != null && !els.isEmpty()) { |
| 155 | return els.first().text().trim(); |
| 156 | } |
| 157 | |
| 158 | return ""; |
| 159 | } |
| 160 | |
| 161 | @Override |
| 162 | protected Element getFullArticle(Document doc) { |
| 163 | Element element = doc.getElementsByAttributeValue( |
| 164 | "data-click-id", "body").first(); |
| 165 | if (element == null) { |
| 166 | element = doc.getElementsByClass("ckueCN").first(); |
| 167 | } |
| 168 | |
| 169 | return element; |
| 170 | } |
| 171 | |
| 172 | @Override |
| 173 | protected ElementProcessor getElementProcessorFullArticle() { |
| 174 | return new BasicElementProcessor(); |
| 175 | } |
| 176 | |
| 177 | @Override |
| 178 | protected List<Element> getFullArticleCommentPosts(Document doc, URL intUrl) { |
| 179 | Elements posts = doc.getElementsByClass("jHfOJm"); |
| 180 | if (posts.isEmpty()) { |
| 181 | posts = doc.getElementsByClass("eCeBkc"); |
| 182 | } |
| 183 | |
| 184 | return posts; |
| 185 | } |
| 186 | |
| 187 | @Override |
| 188 | protected List<Element> getCommentCommentPosts(Document doc, |
| 189 | Element container) { |
| 190 | List<Element> elements = new LinkedList<Element>(); |
| 191 | for (Element el : container.children()) { |
| 192 | elements.addAll(el.getElementsByClass("jHfOJm")); |
| 193 | } |
| 194 | |
| 195 | return elements; |
| 196 | } |
| 197 | |
| 198 | @Override |
| 199 | protected String getCommentId(Element post) { |
| 200 | int level = 1; |
| 201 | Elements els = post.getElementsByClass("imyGpC"); |
| 202 | if (els.size() > 0) { |
| 203 | String l = els.first().text().trim() |
| 204 | .replace("level ", ""); |
| 205 | try { |
| 206 | level = Integer.parseInt(l); |
| 207 | } catch(NumberFormatException e) { |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | return Integer.toString(level); |
| 212 | } |
| 213 | |
| 214 | @Override |
| 215 | protected String getCommentAuthor(Element post) { |
| 216 | // Since we have no title, we switch with author |
| 217 | return ""; |
| 218 | } |
| 219 | |
| 220 | @Override |
| 221 | protected String getCommentTitle(Element post) { |
| 222 | // Since we have no title, we switch with author |
| 223 | Elements els = post.getElementsByClass("RVnoX"); |
| 224 | if (els.size() > 0) { |
| 225 | return els.first().text().trim(); |
| 226 | } |
| 227 | |
| 228 | els = post.getElementsByClass("kzePTH"); |
| 229 | if (els.size() > 0) { |
| 230 | return els.first().text().trim(); |
| 231 | } |
| 232 | |
| 233 | return ""; |
| 234 | } |
| 235 | |
| 236 | @Override |
| 237 | protected String getCommentDate(Element post) { |
| 238 | String dateAgo = post.getElementsByClass("hJDlLH") |
| 239 | .first().text().trim(); |
| 240 | return new SimpleDateFormat("yyyy-MM-dd_HH-mm").format(getDate(dateAgo)); |
| 241 | } |
| 242 | |
| 243 | @Override |
| 244 | protected Element getCommentContentElement(Element post) { |
| 245 | return post.getElementsByClass("ckueCN") |
| 246 | .first(); |
| 247 | } |
| 248 | |
| 249 | @Override |
| 250 | protected ElementProcessor getElementProcessorComment() { |
| 251 | return new BasicElementProcessor(); |
| 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public void fetch(Story story) throws IOException { |
| 256 | super.fetch(story); |
| 257 | |
| 258 | List<Comment> comments = new LinkedList<Comment>(); |
| 259 | Map<Integer, Comment> lastOfLevel = |
| 260 | new HashMap<Integer, Comment>(); |
| 261 | |
| 262 | for (Comment c : story.getComments()) { |
| 263 | int level = Integer.parseInt(c.getId()); |
| 264 | lastOfLevel.put(level, c); |
| 265 | if (level <= 1) { |
| 266 | comments.add(c); |
| 267 | } else { |
| 268 | Comment parent = lastOfLevel.get(level - 1); |
| 269 | if (parent != null ){ |
| 270 | parent.add(c); |
| 271 | } else { |
| 272 | // bad data |
| 273 | comments.add(c); |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | story.setComments(comments); |
| 279 | } |
| 280 | |
| 281 | // 2 hours ago -> 18/10/2018 21:00 |
| 282 | private Date getDate(String dateAgo) { |
| 283 | int h = 0; |
| 284 | if (dateAgo.endsWith("hour ago")) { |
| 285 | h = 1; |
| 286 | } else if (dateAgo.endsWith("hours ago")) { |
| 287 | dateAgo = dateAgo.replace("hours ago", "").trim(); |
| 288 | h = Integer.parseInt(dateAgo); |
| 289 | } else if (dateAgo.endsWith("day ago")) { |
| 290 | h = 24; |
| 291 | } else if (dateAgo.endsWith("days ago")) { |
| 292 | dateAgo = dateAgo.replace("days ago", "").trim(); |
| 293 | h = Integer.parseInt(dateAgo) * 24; |
| 294 | } |
| 295 | |
| 296 | long now = new Date().getTime(); // in ms since 1970 |
| 297 | now = now / (1000l * 60l * 60l); // in hours since 1970 |
| 298 | long then = now - h; // in hours since 1970 |
| 299 | then = then * (1000l * 60l * 60l); // in ms since 1970 |
| 300 | |
| 301 | return new Date(then); |
| 302 | } |
| 303 | } |