package com.rarchives.ripme.ripper.rippers;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import com.rarchives.ripme.ripper.AlbumRipper;
import com.rarchives.ripme.ui.RipStatusMessage.STATUS;
import com.rarchives.ripme.utils.Http;
import com.rarchives.ripme.utils.Utils;
public class ImgurRipper extends AlbumRipper {
private static final String DOMAIN = "imgur.com",
HOST = "imgur";
private final int SLEEP_BETWEEN_ALBUMS;
private Document albumDoc;
static enum ALBUM_TYPE {
ALBUM,
USER,
USER_ALBUM,
USER_IMAGES,
SERIES_OF_IMAGES,
SUBREDDIT
};
private ALBUM_TYPE albumType;
public ImgurRipper(URL url) throws IOException {
super(url);
SLEEP_BETWEEN_ALBUMS = 1;
}
/**
* Imgur ripper does not return the same URL except when ripping
* many albums at once (USER). In this case, we want duplicates.
*/
@Override
public boolean allowDuplicates() {
return true;
}
public boolean canRip(URL url) {
if (!url.getHost().endsWith(DOMAIN)) {
return false;
}
try {
getGID(url);
} catch (Exception e) {
// Can't get GID, can't rip it.
return false;
}
return true;
}
public URL sanitizeURL(URL url) throws MalformedURLException {
String u = url.toExternalForm();
if (u.indexOf('#') >= 0) {
u = u.substring(0, u.indexOf('#'));
}
u = u.replace("https?://m\\.imgur\\.com", "http://imgur.com");
u = u.replace("https?://i\\.imgur\\.com", "http://imgur.com");
return new URL(u);
}
public String getAlbumTitle(URL url) throws MalformedURLException {
String gid = getGID(url);
if (this.albumType == ALBUM_TYPE.ALBUM) {
try {
// Attempt to use album title as GID
if (albumDoc == null) {
albumDoc = Http.url(url).get();
}
String title = albumDoc.title();
if (!title.contains(" - Imgur")
|| title.contains("'s albums")) {
throw new IOException("No title found");
}
title = title.replaceAll(" - Imgur.*", "");
return "imgur_" + gid + " (" + title + ")";
} catch (IOException e) {
// Fall back to default album naming convention
}
}
return getHost() + "_" + gid;
}
@Override
public void rip() throws IOException {
switch (albumType) {
case ALBUM:
// Fall-through
case USER_ALBUM:
ripAlbum(this.url);
break;
case SERIES_OF_IMAGES:
ripAlbum(this.url);
break;
case USER:
ripUserAccount(url);
break;
case SUBREDDIT:
ripSubreddit(url);
break;
case USER_IMAGES:
ripUserImages(url);
break;
}
waitForThreads();
}
private void ripAlbum(URL url) throws IOException {
ripAlbum(url, "");
}
private void ripAlbum(URL url, String subdirectory) throws IOException {
int index = 0;
this.sendUpdate(STATUS.LOADING_RESOURCE, url.toExternalForm());
index = 0;
ImgurAlbum album = getImgurAlbum(url);
for (ImgurImage imgurImage : album.images) {
stopCheck();
String saveAs = workingDir.getCanonicalPath();
if (!saveAs.endsWith(File.separator)) {
saveAs += File.separator;
}
if (subdirectory != null && !subdirectory.equals("")) {
saveAs += subdirectory;
}
if (!saveAs.endsWith(File.separator)) {
saveAs += File.separator;
}
File subdirFile = new File(saveAs);
if (!subdirFile.exists()) {
subdirFile.mkdirs();
}
index += 1;
if (Utils.getConfigBoolean("download.save_order", true)) {
saveAs += String.format("%03d_", index);
}
saveAs += imgurImage.getSaveAs();
addURLToDownload(imgurImage.url, new File(saveAs));
}
}
public static ImgurAlbum getImgurAlbum(URL url) throws IOException {
logger.info(" Retrieving " + url.toExternalForm());
Document doc = Jsoup.connect(url.toExternalForm())
.userAgent(USER_AGENT)
.timeout(10 * 1000)
.maxBodySize(0)
.get();
// Try to use embedded JSON to retrieve images
Pattern p = Pattern.compile("^.*Imgur\\.Album\\.getInstance\\((.*)\\);.*$", Pattern.DOTALL);
Matcher m = p.matcher(doc.body().html());
if (m.matches()) {
try {
JSONObject json = new JSONObject(m.group(1));
JSONObject jsonAlbum = json.getJSONObject("album");
ImgurAlbum imgurAlbum = new ImgurAlbum(url, jsonAlbum.getString("title_clean"));
JSONArray images = json.getJSONObject("images").getJSONArray("items");
int imagesLength = images.length();
for (int i = 0; i < imagesLength; i++) {
JSONObject image = images.getJSONObject(i);
URL imageURL = new URL(
// CDN url is provided elsewhere in the document
"http://i.imgur.com/"
+ image.get("hash")
+ image.get("ext"));
ImgurImage imgurImage = new ImgurImage(imageURL,
image.getString("title"),
image.getString("description"));
imgurAlbum.addImage(imgurImage);
}
return imgurAlbum;
} catch (JSONException e) {
logger.debug("Error while parsing JSON at " + url + ", continuing", e);
}
}
p = Pattern.compile("^.*= new ImgurShare\\((.*)\\);.*$", Pattern.DOTALL);
m = p.matcher(doc.body().html());
if (m.matches()) {
try {
ImgurAlbum imgurAlbum = new ImgurAlbum(url);
JSONObject json = new JSONObject(m.group(1));
JSONArray images = json.getJSONArray("hashes");
int imagesLength = images.length();
for (int i = 0; i < imagesLength; i++) {
JSONObject image = images.getJSONObject(i);
URL imageURL = new URL(
"http:" + json.getString("cdnUrl")
+ "/"
+ image.getString("hash")
+ image.getString("ext"));
ImgurImage imgurImage = new ImgurImage(imageURL);
imgurImage.extension = image.getString("ext");
imgurAlbum.addImage(imgurImage);
}
return imgurAlbum;
} catch (JSONException e) {
logger.debug("Error while parsing JSON at " + url + ", continuing", e);
}
}
// TODO If album is empty, use this to check for cached images:
// http://i.rarchives.com/search.cgi?cache=http://imgur.com/a/albumID
// At the least, get the thumbnails.
logger.info("[!] Falling back to /noscript method");
String newUrl = url.toExternalForm() + "/noscript";
logger.info(" Retrieving " + newUrl);
doc = Jsoup.connect(newUrl)
.userAgent(USER_AGENT)
.get();
// Fall back to parsing HTML elements
// NOTE: This does not always get the highest-resolution images!
ImgurAlbum imgurAlbum = new ImgurAlbum(url);
for (Element thumb : doc.select("div.image")) {
String image;
if (thumb.select("a.zoom").size() > 0) {
// Clickably full-size
image = "http:" + thumb.select("a").attr("href");
} else if (thumb.select("img").size() > 0) {
image = "http:" + thumb.select("img").attr("src");
} else {
// Unable to find image in this div
logger.error("[!] Unable to find image in div: " + thumb.toString());
continue;
}
ImgurImage imgurImage = new ImgurImage(new URL(image));
imgurAlbum.addImage(imgurImage);
}
return imgurAlbum;
}
/**
* Rips all albums in an imgur user's account.
* @param url
* URL to imgur user account (http://username.imgur.com)
* @throws IOException
*/
private void ripUserAccount(URL url) throws IOException {
logger.info("Retrieving " + url);
sendUpdate(STATUS.LOADING_RESOURCE, url.toExternalForm());
Document doc = Http.url(url).get();
for (Element album : doc.select("div.cover a")) {
stopCheck();
if (!album.hasAttr("href")
|| !album.attr("href").contains("imgur.com/a/")) {
continue;
}
String albumID = album.attr("href").substring(album.attr("href").lastIndexOf('/') + 1);
URL albumURL = new URL("http:" + album.attr("href") + "/noscript");
try {
ripAlbum(albumURL, albumID);
Thread.sleep(SLEEP_BETWEEN_ALBUMS * 1000);
} catch (Exception e) {
logger.error("Error while ripping album: " + e.getMessage(), e);
continue;
}
}
}
private void ripUserImages(URL url) throws IOException {
int page = 0; int imagesFound = 0; int imagesTotal = 0;
String jsonUrl = url.toExternalForm().replace("/all", "/ajax/images");
if (jsonUrl.contains("#")) {
jsonUrl = jsonUrl.substring(0, jsonUrl.indexOf("#"));
}
while (true) {
try {
page++;
String jsonUrlWithParams = jsonUrl + "?sort=0&order=1&album=0&page=" + page + "&perPage=60";
JSONObject json = Http.url(jsonUrlWithParams).getJSON();
JSONObject jsonData = json.getJSONObject("data");
if (jsonData.has("count")) {
imagesTotal = jsonData.getInt("count");
}
JSONArray images = jsonData.getJSONArray("images");
for (int i = 0; i < images.length(); i++) {
imagesFound++;
JSONObject image = images.getJSONObject(i);
String imageUrl = "http://i.imgur.com/" + image.getString("hash") + image.getString("ext");
String prefix = "";
if (Utils.getConfigBoolean("download.save_order", true)) {
prefix = String.format("%03d_", imagesFound);
}
addURLToDownload(new URL(imageUrl), prefix);
}
if (imagesFound >= imagesTotal) {
break;
}
Thread.sleep(1000);
} catch (Exception e) {
logger.error("Error while ripping user images: " + e.getMessage(), e);
break;
}
}
}
private void ripSubreddit(URL url) throws IOException {
int page = 0;
while (true) {
stopCheck();
String pageURL = url.toExternalForm();
if (!pageURL.endsWith("/")) {
pageURL += "/";
}
pageURL += "page/" + page + "/miss?scrolled";
logger.info(" Retrieving " + pageURL);
Document doc = Http.url(pageURL).get();
Elements imgs = doc.select(".post img");
for (Element img : imgs) {
String image = img.attr("src");
if (image.startsWith("//")) {
image = "http:" + image;
}
if (image.contains("b.")) {
image = image.replace("b.", ".");
}
URL imageURL = new URL(image);
addURLToDownload(imageURL);
}
if (imgs.size() == 0) {
break;
}
page++;
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
logger.error("Interrupted while waiting to load next album: ", e);
break;
}
}
}
@Override
public String getHost() {
return HOST;
}
@Override
public String getGID(URL url) throws MalformedURLException {
Pattern p = Pattern.compile("^https?://(m\\.)?imgur\\.com/a/([a-zA-Z0-9]{5,8}).*$");
Matcher m = p.matcher(url.toExternalForm());
if (m.matches()) {
// Imgur album
albumType = ALBUM_TYPE.ALBUM;
String gid = m.group(m.groupCount());
this.url = new URL("http://imgur.com/a/" + gid);
return gid;
}
p = Pattern.compile("^https?://([a-zA-Z0-9\\-]{3,})\\.imgur\\.com/?$");
m = p.matcher(url.toExternalForm());
if (m.matches()) {
// Root imgur account
String gid = m.group(1);
if (gid.equals("www")) {
throw new MalformedURLException("Cannot rip the www.imgur.com homepage");
}
albumType = ALBUM_TYPE.USER;
return gid;
}
p = Pattern.compile("^https?://([a-zA-Z0-9\\-]{3,})\\.imgur\\.com/all.*$");
m = p.matcher(url.toExternalForm());
if (m.matches()) {
// Imgur account images
albumType = ALBUM_TYPE.USER_IMAGES;
return m.group(1) + "_images";
}
p = Pattern.compile("^https?://([a-zA-Z0-9\\-]{3,})\\.imgur\\.com/([a-zA-Z0-9\\-_]+).*$");
m = p.matcher(url.toExternalForm());
if (m.matches()) {
// Imgur account album
albumType = ALBUM_TYPE.USER_ALBUM;
return m.group(1) + "-" + m.group(2);
}
p = Pattern.compile("^https?://(www\\.)?imgur\\.com/r/([a-zA-Z0-9\\-_]{3,})(/top|/new)?(/all|/year|/month|/week)?/?$");
m = p.matcher(url.toExternalForm());
if (m.matches()) {
// Imgur subreddit aggregator
albumType = ALBUM_TYPE.SUBREDDIT;
String album = m.group(2);
for (int i = 3; i <= m.groupCount(); i++) {
if (m.group(i) != null) {
album += "_" + m.group(i).replace("/", "");
}
}
return album;
}
p = Pattern.compile("^https?://(i\\.)?imgur\\.com/([a-zA-Z0-9,]{5,}).*$");
m = p.matcher(url.toExternalForm());
if (m.matches()) {
// Series of imgur images
albumType = ALBUM_TYPE.SERIES_OF_IMAGES;
String gid = m.group(m.groupCount());
if (!gid.contains(",")) {
throw new MalformedURLException("Imgur image doesn't contain commas");
}
return gid.replaceAll(",", "-");
}
throw new MalformedURLException("Unsupported imgur URL format: " + url.toExternalForm());
}
public ALBUM_TYPE getAlbumType() {
return albumType;
}
public static class ImgurImage {
public String title = "",
description = "",
extension = "";
public URL url = null;
public ImgurImage(URL url) {
this.url = url;
String tempUrl = url.toExternalForm();
this.extension = tempUrl.substring(tempUrl.lastIndexOf('.'));
if (this.extension.contains("?")) {
this.extension = this.extension.substring(0, this.extension.indexOf("?"));
}
}
public ImgurImage(URL url, String title) {
this(url);
this.title = title;
}
public ImgurImage(URL url, String title, String description) {
this(url, title);
this.description = description;
}
public String getSaveAs() {
String saveAs = this.title;
String u = url.toExternalForm();
if (u.contains("?")) {
u = u.substring(0, u.indexOf("?"));
}
String imgId = u.substring(u.lastIndexOf('/') + 1, u.lastIndexOf('.'));
if (saveAs == null || saveAs.equals("")) {
saveAs = imgId;
} else {
saveAs = saveAs + "_" + imgId;
}
saveAs = Utils.filesystemSafe(saveAs);
return saveAs + this.extension;
}
}
public static class ImgurAlbum {
public String title = null;
public URL url = null;
public List<ImgurImage> images = new ArrayList<ImgurImage>();
public ImgurAlbum(URL url) {
this.url = url;
}
public ImgurAlbum(URL url, String title) {
this(url);
this.title = title;
}
public void addImage(ImgurImage image) {
images.add(image);
}
}
}