package com.rarchives.ripme.ripper.rippers;
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.json.JSONTokener;
import org.jsoup.nodes.Document;
import com.rarchives.ripme.ripper.AlbumRipper;
import com.rarchives.ripme.utils.Http;
import com.rarchives.ripme.utils.Utils;
public class TwitterRipper extends AlbumRipper {
private static final String DOMAIN = "twitter.com",
HOST = "twitter";
private static final int MAX_REQUESTS = Utils.getConfigInteger("twitter.max_requests", 10);
private static final int WAIT_TIME = 2000;
// Base 64 of consumer key : consumer secret
private String authKey;
private String accessToken;
private enum ALBUM_TYPE {
ACCOUNT,
SEARCH
}
private ALBUM_TYPE albumType;
private String searchText, accountName;
public TwitterRipper(URL url) throws IOException {
super(url);
authKey = Utils.getConfigString("twitter.auth", null);
if (authKey == null) {
throw new IOException("Could not find twitter authentication key in configuration");
}
}
@Override
public boolean canRip(URL url) {
return url.getHost().endsWith(DOMAIN);
}
@Override
public URL sanitizeURL(URL url) throws MalformedURLException {
// https://twitter.com/search?q=from%3Apurrbunny%20filter%3Aimages&src=typd
Pattern p = Pattern.compile("^https?://(m\\.)?twitter\\.com/search\\?q=([a-zA-Z0-9%\\-_]{1,}).*$");
Matcher m = p.matcher(url.toExternalForm());
if (m.matches()) {
albumType = ALBUM_TYPE.SEARCH;
searchText = m.group(2);
return url;
}
p = Pattern.compile("^https?://(m\\.)?twitter\\.com/([a-zA-Z0-9\\-_]{1,}).*$");
m = p.matcher(url.toExternalForm());
if (m.matches()) {
albumType = ALBUM_TYPE.ACCOUNT;
accountName = m.group(2);
return url;
}
throw new MalformedURLException("Expected username or search string in url: " + url);
}
private void getAccessToken() throws IOException {
Document doc = Http.url("https://api.twitter.com/oauth2/token")
.ignoreContentType()
.header("Authorization", "Basic " + authKey)
.header("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8")
.header("User-agent", "ripe and zipe")
.data("grant_type", "client_credentials")
.post();
String body = doc.body().html().replaceAll(""", "\"");
try {
JSONObject json = new JSONObject(body);
accessToken = json.getString("access_token");
return;
} catch (JSONException e) {
// Fall through
throw new IOException("Failure while parsing JSON: " + body, e);
}
}
private void checkRateLimits(String resource, String api) throws IOException {
Document doc = Http.url("https://api.twitter.com/1.1/application/rate_limit_status.json?resources=" + resource)
.ignoreContentType()
.header("Authorization", "Bearer " + accessToken)
.header("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8")
.header("User-agent", "ripe and zipe")
.get();
String body = doc.body().html().replaceAll(""", "\"");
try {
JSONObject json = new JSONObject(body);
JSONObject stats = json.getJSONObject("resources")
.getJSONObject(resource)
.getJSONObject(api);
int remaining = stats.getInt("remaining");
logger.info(" Twitter " + resource + " calls remaining: " + remaining);
if (remaining < 20) {
logger.error("Twitter API calls exhausted: " + stats.toString());
throw new IOException("Less than 20 API calls remaining; not enough to rip.");
}
} catch (JSONException e) {
logger.error("JSONException: ", e);
throw new IOException("Error while parsing JSON: " + body, e);
}
}
private String getApiURL(Long maxID) {
StringBuilder req = new StringBuilder();
switch (albumType) {
case ACCOUNT:
req.append("https://api.twitter.com/1.1/statuses/user_timeline.json")
.append("?screen_name=" + this.accountName)
.append("&include_entities=true")
.append("&exclude_replies=true")
.append("&trim_user=true")
.append("&include_rts=false")
.append("&count=" + 200);
break;
case SEARCH:
req.append("https://api.twitter.com/1.1/search/tweets.json")
.append("?q=" + this.searchText)
.append("&include_entities=true")
.append("&result_type=recent")
.append("&count=100");
break;
}
if (maxID > 0) {
req.append("&max_id=" + Long.toString(maxID));
}
return req.toString();
}
private List<JSONObject> getTweets(String url) throws IOException {
List<JSONObject> tweets = new ArrayList<JSONObject>();
logger.info(" Retrieving " + url);
Document doc = Http.url(url)
.ignoreContentType()
.header("Authorization", "Bearer " + accessToken)
.header("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8")
.header("User-agent", "ripe and zipe")
.get();
String body = doc.body().html().replaceAll(""", "\"");
Object jsonObj = new JSONTokener(body).nextValue();
JSONArray statuses;
if (jsonObj instanceof JSONObject) {
JSONObject json = (JSONObject) jsonObj;
if (json.has("errors")) {
String msg = json.getJSONObject("errors").getString("message");
throw new IOException("Twitter responded with errors: " + msg);
}
statuses = json.getJSONArray("statuses");
} else {
statuses = (JSONArray) jsonObj;
}
for (int i = 0; i < statuses.length(); i++) {
tweets.add((JSONObject) statuses.get(i));
}
return tweets;
}
private void parseTweet(JSONObject tweet) throws MalformedURLException {
if (!tweet.has("entities")) {
logger.error("XXX Tweet doesn't have entitites");
return;
}
JSONObject entities = tweet.getJSONObject("entities");
if (entities.has("media")) {
JSONArray medias = entities.getJSONArray("media");
String url;
JSONObject media;
for (int i = 0; i < medias.length(); i++) {
media = (JSONObject) medias.get(i);
url = media.getString("media_url");
if (url.contains(".twimg.com/")) {
url += ":large";
}
addURLToDownload(new URL(url));
}
}
if (entities.has("urls")) {
JSONArray urls = entities.getJSONArray("urls");
JSONObject url;
for (int i = 0; i < urls.length(); i++) {
url = (JSONObject) urls.get(i);
if (url.get("expanded_url") != null) {
handleTweetedURL(url.getString("url"));
} else {
handleTweetedURL(url.getString("expanded_url"));
}
}
}
}
private void handleTweetedURL(String url) {
logger.error("[!] Need to handle URL: " + url);
}
@Override
public void rip() throws IOException {
getAccessToken();
switch (albumType) {
case ACCOUNT:
checkRateLimits("statuses", "/statuses/user_timeline");
break;
case SEARCH:
checkRateLimits("search", "/search/tweets");
break;
}
Long lastMaxID = 0L;
for (int i = 0; i < MAX_REQUESTS; i++) {
List<JSONObject> tweets = getTweets(getApiURL(lastMaxID - 1));
if (tweets.size() == 0) {
logger.info(" No more tweets found.");
break;
}
logger.debug("Twitter response #" + (i + 1) + " Tweets:\n" + tweets);
if (tweets.size() == 1 &&
lastMaxID.equals(tweets.get(0).getString("id_str"))
) {
break;
}
for (JSONObject tweet : tweets) {
lastMaxID = tweet.getLong("id");
parseTweet(tweet);
}
try {
Thread.sleep(WAIT_TIME);
}
catch (InterruptedException e) {
logger.error("[!] Interrupted while waiting to load more results", e);
break;
}
}
waitForThreads();
}
@Override
public String getHost() {
return HOST;
}
@Override
public String getGID(URL url) throws MalformedURLException {
switch (albumType) {
case ACCOUNT:
return "account_" + accountName;
case SEARCH:
StringBuilder gid = new StringBuilder();
for (int i = 0; i < searchText.length(); i++) {
char c = searchText.charAt(i);
// Ignore URL-encoded chars
if (c == '%') {
gid.append('_');
i += 2;
continue;
// Ignore non-alphanumeric chars
} else if (
(c >= 'a' && c <= 'z')
|| (c >= 'A' && c <= 'Z')
|| (c >= '0' && c <= '9')
) {
gid.append(c);
}
}
return "search_" + gid.toString();
}
throw new MalformedURLException("Could not decide type of URL (search/account): " + url);
}
}