| 1 | package be.nikiroo.gofetch.support; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | import java.net.URL; |
| 5 | import java.text.SimpleDateFormat; |
| 6 | import java.util.AbstractMap; |
| 7 | import java.util.ArrayList; |
| 8 | import java.util.Date; |
| 9 | import java.util.HashMap; |
| 10 | import java.util.LinkedList; |
| 11 | import java.util.List; |
| 12 | import java.util.Map; |
| 13 | import java.util.Map.Entry; |
| 14 | |
| 15 | import org.jsoup.nodes.Document; |
| 16 | import org.jsoup.nodes.Element; |
| 17 | import org.jsoup.select.Elements; |
| 18 | |
| 19 | import be.nikiroo.gofetch.data.Comment; |
| 20 | import be.nikiroo.gofetch.data.Story; |
| 21 | |
| 22 | /** |
| 23 | * Support <a href="https://www.reddit.com/">https://www.reddit.com/</a>. |
| 24 | * |
| 25 | * @author niki |
| 26 | */ |
| 27 | public class Reddit extends BasicSupport { |
| 28 | @Override |
| 29 | public String getDescription() { |
| 30 | return "Reddit: The front page of the internet"; |
| 31 | } |
| 32 | |
| 33 | @Override |
| 34 | protected List<Entry<URL, String>> getUrls() throws IOException { |
| 35 | List<Entry<URL, String>> urls = new ArrayList<Entry<URL, String>>(); |
| 36 | String base = "https://www.reddit.com/r/"; |
| 37 | urls.add(new AbstractMap.SimpleEntry<URL, String>(new URL(base |
| 38 | + "linux_gaming" + "/new/"), "linux_gaming")); |
| 39 | |
| 40 | return urls; |
| 41 | } |
| 42 | |
| 43 | @Override |
| 44 | protected List<Element> getArticles(Document doc) { |
| 45 | List<Element> list = doc.getElementsByClass("thing"); |
| 46 | if (list.isEmpty()) { |
| 47 | list = doc.getElementsByClass("Post"); |
| 48 | } |
| 49 | if (list.isEmpty()) { |
| 50 | list = doc.getElementsByClass("scrollerItem"); |
| 51 | } |
| 52 | |
| 53 | return list; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | protected String getArticleId(Document doc, Element article) { |
| 58 | String date = getArticleDate(doc, article); |
| 59 | String title = getArticleTitle(doc, article); |
| 60 | |
| 61 | String id = (date + "_" + title).replaceAll("[^a-zA-Z0-9_-]", "_"); |
| 62 | if (id.length() > 40) { |
| 63 | id = id.substring(0, 40); |
| 64 | } |
| 65 | |
| 66 | return id; |
| 67 | } |
| 68 | |
| 69 | @Override |
| 70 | protected String getArticleTitle(Document doc, Element article) { |
| 71 | Elements els = article.getElementsByAttributeValue("data-event-action", |
| 72 | "title"); |
| 73 | if (els == null || els.isEmpty()) { |
| 74 | els = article.getElementsByTag("h2"); |
| 75 | } |
| 76 | |
| 77 | return els.first().text().trim(); |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | protected String getArticleAuthor(Document doc, Element article) { |
| 82 | String user = article |
| 83 | .getElementsByAttributeValueStarting("href", "/user/").text() |
| 84 | .trim(); |
| 85 | if (user.startsWith("/u")) |
| 86 | user = user.substring(3); |
| 87 | return user; |
| 88 | } |
| 89 | |
| 90 | @Override |
| 91 | protected String getArticleDate(Document doc, Element article) { |
| 92 | Element el = article.getElementsByClass("live-timestamp").first(); |
| 93 | if (el == null) { |
| 94 | el = article.getElementsByAttributeValue("data-click-id", |
| 95 | "timestamp").first(); |
| 96 | } |
| 97 | |
| 98 | String dateAgo = el.text().trim(); |
| 99 | return new SimpleDateFormat("yyyy-MM-dd") // _HH-mm |
| 100 | .format(getDate(dateAgo)); |
| 101 | } |
| 102 | |
| 103 | @Override |
| 104 | protected String getArticleCategory(Document doc, Element article, |
| 105 | String currentCategory) { |
| 106 | Elements categEls = article.getElementsByAttributeValueStarting("href", |
| 107 | "/r/" + currentCategory + "/search=?q=flair_name"); |
| 108 | |
| 109 | if (categEls.size() > 0) { |
| 110 | return currentCategory + ", " + categEls.first().text().trim(); |
| 111 | } |
| 112 | |
| 113 | return currentCategory; |
| 114 | } |
| 115 | |
| 116 | @Override |
| 117 | protected String getArticleDetails(Document doc, Element article) { |
| 118 | return ""; |
| 119 | } |
| 120 | |
| 121 | @Override |
| 122 | protected String getArticleIntUrl(Document doc, Element article) { |
| 123 | String url = article.absUrl("data-permalink"); |
| 124 | if (url == null || url.isEmpty()) { |
| 125 | url = article |
| 126 | .getElementsByAttributeValue("data-click-id", "timestamp") |
| 127 | .first().absUrl("href"); |
| 128 | } |
| 129 | |
| 130 | return url; |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | protected String getArticleExtUrl(Document doc, Element article) { |
| 135 | Elements els = article.getElementsByAttributeValue("data-event-action", |
| 136 | "title"); |
| 137 | if (els == null || els.isEmpty()) { |
| 138 | els = article.getElementsByAttributeValue("data-click-id", "body"); |
| 139 | } |
| 140 | |
| 141 | Element url = els.first(); |
| 142 | if (!url.attr("href").trim().startsWith("/")) { |
| 143 | return url.absUrl("href"); |
| 144 | } |
| 145 | |
| 146 | return ""; |
| 147 | } |
| 148 | |
| 149 | @Override |
| 150 | protected String getArticleContent(Document doc, Element article) { |
| 151 | Elements els = article.getElementsByClass("h2"); |
| 152 | if (els != null && !els.isEmpty()) { |
| 153 | return els.first().text().trim(); |
| 154 | } |
| 155 | |
| 156 | return ""; |
| 157 | } |
| 158 | |
| 159 | @Override |
| 160 | protected Element getFullArticle(Document doc) { |
| 161 | Element element = doc.getElementsByAttributeValue("data-click-id", |
| 162 | "body").first(); |
| 163 | if (element == null) { |
| 164 | element = doc.getElementsByClass("ckueCN").first(); |
| 165 | } |
| 166 | |
| 167 | return element; |
| 168 | } |
| 169 | |
| 170 | @Override |
| 171 | protected ElementProcessor getElementProcessorFullArticle() { |
| 172 | return new BasicElementProcessor(); |
| 173 | } |
| 174 | |
| 175 | @Override |
| 176 | protected List<Element> getFullArticleCommentPosts(Document doc, URL intUrl) { |
| 177 | Elements posts = doc.getElementsByClass("jHfOJm"); |
| 178 | if (posts.isEmpty()) { |
| 179 | posts = doc.getElementsByClass("eCeBkc"); |
| 180 | } |
| 181 | if (posts.isEmpty()) { |
| 182 | posts = doc.getElementsByClass("gxtxxZ"); |
| 183 | } |
| 184 | |
| 185 | return posts; |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | protected List<Element> getCommentCommentPosts(Document doc, |
| 190 | Element container) { |
| 191 | |
| 192 | List<Element> elements = new LinkedList<Element>(); |
| 193 | for (Element el : container.children()) { |
| 194 | // elements.addAll(el.getElementsByClass("jHfOJm")); |
| 195 | elements.addAll(el.getElementsByClass("emJXdb")); |
| 196 | } |
| 197 | |
| 198 | return elements; |
| 199 | } |
| 200 | |
| 201 | @Override |
| 202 | protected String getCommentId(Element post) { |
| 203 | int level = 1; |
| 204 | Elements els = post.getElementsByClass("imyGpC"); |
| 205 | |
| 206 | if (!els.isEmpty()) { |
| 207 | String l = els.first().text().trim().replace("level ", ""); |
| 208 | try { |
| 209 | level = Integer.parseInt(l); |
| 210 | } catch (NumberFormatException e) { |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | return Integer.toString(level); |
| 215 | } |
| 216 | |
| 217 | @Override |
| 218 | protected String getCommentAuthor(Element post) { |
| 219 | // Since we have no title, we switch with author |
| 220 | return ""; |
| 221 | } |
| 222 | |
| 223 | @Override |
| 224 | protected String getCommentTitle(Element post) { |
| 225 | // Since we have no title, we switch with author |
| 226 | |
| 227 | Element authorEl = post.getElementsByClass("RVnoX").first(); |
| 228 | if (authorEl == null) |
| 229 | authorEl = post.getElementsByClass("kzePTH").first(); |
| 230 | if (authorEl == null) |
| 231 | authorEl = post.getElementsByClass("jczTlv").first(); |
| 232 | |
| 233 | if (authorEl != null) |
| 234 | return authorEl.text().trim(); |
| 235 | |
| 236 | return ""; |
| 237 | } |
| 238 | |
| 239 | @Override |
| 240 | protected String getCommentDate(Element post) { |
| 241 | Element elAgo = post.getElementsByClass("hJDlLH").first(); |
| 242 | if (elAgo == null) |
| 243 | elAgo = post.getElementsByClass("hDplaG").first(); |
| 244 | |
| 245 | if (elAgo != null) { |
| 246 | String dateAgo = elAgo.text().trim(); |
| 247 | return new SimpleDateFormat("yyyy-MM-dd_HH-mm") |
| 248 | .format(getDate(dateAgo)); |
| 249 | } |
| 250 | |
| 251 | return ""; |
| 252 | } |
| 253 | |
| 254 | @Override |
| 255 | protected Element getCommentContentElement(Element post) { |
| 256 | return post.getElementsByClass("ckueCN").first(); |
| 257 | } |
| 258 | |
| 259 | @Override |
| 260 | protected ElementProcessor getElementProcessorComment() { |
| 261 | return new BasicElementProcessor(); |
| 262 | } |
| 263 | |
| 264 | @Override |
| 265 | public void fetch(Story story) throws IOException { |
| 266 | super.fetch(story); |
| 267 | |
| 268 | List<Comment> comments = new LinkedList<Comment>(); |
| 269 | Map<Integer, Comment> lastOfLevel = new HashMap<Integer, Comment>(); |
| 270 | |
| 271 | if (!story.getComments().isEmpty()) { |
| 272 | // comments are saved under a main ID (which is a copy of comment 1) |
| 273 | // TODO: fix the cause instead of working around it here |
| 274 | for (Comment c : story.getComments().get(0)) { |
| 275 | int level = Integer.parseInt(c.getId()); |
| 276 | lastOfLevel.put(level, c); |
| 277 | if (level <= 1) { |
| 278 | comments.add(c); |
| 279 | } else { |
| 280 | Comment parent = lastOfLevel.get(level - 1); |
| 281 | if (parent != null) { |
| 282 | parent.add(c); |
| 283 | } else { |
| 284 | // bad data |
| 285 | comments.add(c); |
| 286 | } |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | story.setComments(comments); |
| 292 | } |
| 293 | |
| 294 | // 2 hours ago -> 18/10/2018 21:00 |
| 295 | private Date getDate(String dateAgo) { |
| 296 | int h = 0; |
| 297 | if (dateAgo.endsWith("hour ago")) { |
| 298 | h = 1; |
| 299 | } else if (dateAgo.endsWith("hours ago")) { |
| 300 | dateAgo = dateAgo.replace("hours ago", "").trim(); |
| 301 | h = Integer.parseInt(dateAgo); |
| 302 | } else if (dateAgo.endsWith("day ago")) { |
| 303 | h = 24; |
| 304 | } else if (dateAgo.endsWith("days ago")) { |
| 305 | dateAgo = dateAgo.replace("days ago", "").trim(); |
| 306 | h = Integer.parseInt(dateAgo) * 24; |
| 307 | } |
| 308 | |
| 309 | long now = new Date().getTime(); // in ms since 1970 |
| 310 | now = now / (1000l * 60l * 60l); // in hours since 1970 |
| 311 | long then = now - h; // in hours since 1970 |
| 312 | then = then * (1000l * 60l * 60l); // in ms since 1970 |
| 313 | |
| 314 | return new Date(then); |
| 315 | } |
| 316 | } |