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transdroid/app/src/main/java/org/transdroid/daemon/Qbittorrent/QbittorrentAdapter.java

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/*
* This file is part of Transdroid <http://www.transdroid.org>
*
* Transdroid is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Transdroid is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Transdroid. If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.transdroid.daemon.Qbittorrent;
import com.android.internalcopy.http.multipart.FilePart;
import com.android.internalcopy.http.multipart.MultipartEntity;
import com.android.internalcopy.http.multipart.Part;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.transdroid.core.gui.log.Log;
import org.transdroid.daemon.Daemon;
import org.transdroid.daemon.DaemonException;
import org.transdroid.daemon.DaemonException.ExceptionType;
import org.transdroid.daemon.DaemonSettings;
import org.transdroid.daemon.IDaemonAdapter;
import org.transdroid.daemon.Priority;
import org.transdroid.daemon.Torrent;
import org.transdroid.daemon.TorrentDetails;
import org.transdroid.daemon.TorrentFile;
import org.transdroid.daemon.TorrentStatus;
import org.transdroid.daemon.task.AddByFileTask;
import org.transdroid.daemon.task.AddByMagnetUrlTask;
import org.transdroid.daemon.task.AddByUrlTask;
import org.transdroid.daemon.task.DaemonTask;
import org.transdroid.daemon.task.DaemonTaskFailureResult;
import org.transdroid.daemon.task.DaemonTaskResult;
import org.transdroid.daemon.task.DaemonTaskSuccessResult;
import org.transdroid.daemon.task.GetFileListTask;
import org.transdroid.daemon.task.GetFileListTaskSuccessResult;
import org.transdroid.daemon.task.GetTorrentDetailsTask;
import org.transdroid.daemon.task.GetTorrentDetailsTaskSuccessResult;
import org.transdroid.daemon.task.RemoveTask;
import org.transdroid.daemon.task.RetrieveTask;
import org.transdroid.daemon.task.RetrieveTaskSuccessResult;
import org.transdroid.daemon.task.SetFilePriorityTask;
import org.transdroid.daemon.task.SetTransferRatesTask;
import org.transdroid.daemon.util.HttpHelper;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* The daemon adapter for the qBittorrent torrent client.
* @author erickok
*/
public class QbittorrentAdapter implements IDaemonAdapter {
private static final String LOG_NAME = "qBittorrent daemon";
private DaemonSettings settings;
private DefaultHttpClient httpclient;
private int version = -1;
private int apiVersion = -1;
public QbittorrentAdapter(DaemonSettings settings) {
this.settings = settings;
}
private synchronized void ensureVersion(Log log) throws DaemonException {
// Still need to retrieve the API and qBittorrent version numbers from the server?
if (version > 0 && apiVersion > 0)
return;
try {
// The API version is only supported since qBittorrent 3.2, so otherwise we assume version 1
try {
String apiVerText = makeRequest(log, "/version/api");
apiVersion = Integer.parseInt(apiVerText.trim());
} catch (DaemonException | NumberFormatException e) {
apiVersion = 1;
}
log.d(LOG_NAME, "qBittorrent API version is " + apiVersion);
// The qBittorent version is only supported since 3.2; for earlier versions we parse the about dialog and parse it
String versionText = "";
if (apiVersion > 1) {
// Format is something like 'v3.2.0'
versionText = makeRequest(log, "/version/qbittorrent").substring(1);
} else {
// Format is something like 'qBittorrent v2.9.7 (Web UI)' or 'qBittorrent v3.0.0-alpha5 (Web UI)'
String about = makeRequest(log, "/about.html");
String aboutStartText = "qBittorrent v";
String aboutEndText = " (Web UI)";
int aboutStart = about.indexOf(aboutStartText);
int aboutEnd = about.indexOf(aboutEndText);
if (aboutStart >= 0 && aboutEnd > aboutStart) {
versionText = about.substring(aboutStart + aboutStartText.length(), aboutEnd);
}
}
// String found: now parse a version like 2.9.7 as a number like 20907 (allowing 10 places for each .)
String[] parts = versionText.split("\\.");
if (parts.length > 0) {
version = Integer.parseInt(parts[0]) * 100 * 100;
if (parts.length > 1) {
version += Integer.parseInt(parts[1]) * 100;
if (parts.length > 2) {
// For the last part only read until a non-numeric character is read
// For example version 3.0.0-alpha5 is read as version code 30000
String numbers = "";
for (char c : parts[2].toCharArray()) {
if (Character.isDigit(c))
// Still a number; add it to the numbers string
numbers += Character.toString(c);
else {
// No longer reading numbers; stop reading
break;
}
}
version += Integer.parseInt(numbers);
return;
}
}
}
} catch (Exception e) {
// Unable to establish version number; assume an old version by setting it to version 1
version = 10000;
apiVersion = 1;
}
}
private synchronized void ensureAuthenticated(Log log) throws DaemonException {
// API changed in 3.2.0, login is now handled by its own request, which provides you a cookie.
// If we don't have that cookie, let's try and get it.
if (apiVersion < 2) {
return;
}
// Have we already authenticated? Check if we have the cookie that we need
List<Cookie> cookies = httpclient.getCookieStore().getCookies();
for (Cookie c : cookies) {
if (c.getName().equals("SID")) {
// And here it is! Okay, no need authenticate again.
return;
}
}
makeRequest(log, "/login", new BasicNameValuePair("username", settings.getUsername()),
new BasicNameValuePair("password", settings.getPassword()));
// The HttpClient will automatically remember the cookie for us, no need to parse it out.
// However, we would like to see if authentication was successful or not...
cookies = httpclient.getCookieStore().getCookies();
for (Cookie c : cookies) {
if (c.getName().equals("SID")) {
// Good. Let's get out of here.
return;
}
}
// No cookie found, we didn't authenticate.
throw new DaemonException(ExceptionType.AuthenticationFailure, "Server rejected our login");
}
@Override
public DaemonTaskResult executeTask(Log log, DaemonTask task) {
try {
ensureVersion(log);
ensureAuthenticated(log);
switch (task.getMethod()) {
case Retrieve:
String path;
if (version >= 30200) {
path = "/query/torrents";
} else if (version >= 30000) {
path = "/json/torrents";
} else {
path = "/json/events";
}
// Request all torrents from server
JSONArray result = new JSONArray(makeRequest(log, path));
return new RetrieveTaskSuccessResult((RetrieveTask) task, parseJsonTorrents(result), null);
case GetTorrentDetails:
// Request tracker and error details for a specific teacher
String mhash = task.getTargetTorrent().getUniqueID();
JSONArray messages =
new JSONArray(makeRequest(log, (version >= 30200 ? "/query/propertiesTrackers/" : "/json/propertiesTrackers/") + mhash));
return new GetTorrentDetailsTaskSuccessResult((GetTorrentDetailsTask) task, parseJsonTorrentDetails(messages));
case GetFileList:
// Request files listing for a specific torrent
String fhash = task.getTargetTorrent().getUniqueID();
JSONArray files =
new JSONArray(makeRequest(log, (version >= 30200 ? "/query/propertiesFiles/" : "/json/propertiesFiles/") + fhash));
return new GetFileListTaskSuccessResult((GetFileListTask) task, parseJsonFiles(files));
case AddByFile:
// Upload a local .torrent file
String ufile = ((AddByFileTask) task).getFile();
makeUploadRequest("/command/upload", ufile, log);
return new DaemonTaskSuccessResult(task);
case AddByUrl:
// Request to add a torrent by URL
String url = ((AddByUrlTask) task).getUrl();
makeRequest(log, "/command/download", new BasicNameValuePair("urls", url));
return new DaemonTaskSuccessResult(task);
case AddByMagnetUrl:
// Request to add a magnet link by URL
String magnet = ((AddByMagnetUrlTask) task).getUrl();
makeRequest(log, "/command/download", new BasicNameValuePair("urls", magnet));
return new DaemonTaskSuccessResult(task);
case Remove:
// Remove a torrent
RemoveTask removeTask = (RemoveTask) task;
makeRequest(log, (removeTask.includingData() ? "/command/deletePerm" : "/command/delete"),
new BasicNameValuePair("hashes", removeTask.getTargetTorrent().getUniqueID()));
return new DaemonTaskSuccessResult(task);
case Pause:
// Pause a torrent
makeRequest(log, "/command/pause", new BasicNameValuePair("hash", task.getTargetTorrent().getUniqueID()));
return new DaemonTaskSuccessResult(task);
case PauseAll:
// Resume all torrents
makeRequest(log, "/command/pauseall");
return new DaemonTaskSuccessResult(task);
case Resume:
// Resume a torrent
makeRequest(log, "/command/resume", new BasicNameValuePair("hash", task.getTargetTorrent().getUniqueID()));
return new DaemonTaskSuccessResult(task);
case ResumeAll:
// Resume all torrents
makeRequest(log, "/command/resumeall");
return new DaemonTaskSuccessResult(task);
case SetFilePriorities:
// Update the priorities to a set of files
SetFilePriorityTask setPrio = (SetFilePriorityTask) task;
String newPrio = "0";
if (setPrio.getNewPriority() == Priority.Low) {
newPrio = "1";
} else if (setPrio.getNewPriority() == Priority.Normal) {
newPrio = "2";
} else if (setPrio.getNewPriority() == Priority.High) {
newPrio = "7";
}
// We have to make a separate request per file, it seems
for (TorrentFile file : setPrio.getForFiles()) {
makeRequest(log, "/command/setFilePrio", new BasicNameValuePair("hash", task.getTargetTorrent().getUniqueID()),
new BasicNameValuePair("id", file.getKey()), new BasicNameValuePair("priority", newPrio));
}
return new DaemonTaskSuccessResult(task);
case SetTransferRates:
// TODO: This doesn't seem to work yet
// Request to set the maximum transfer rates
SetTransferRatesTask ratesTask = (SetTransferRatesTask) task;
int dl = (ratesTask.getDownloadRate() == null ? -1 : ratesTask.getDownloadRate());
int ul = (ratesTask.getUploadRate() == null ? -1 : ratesTask.getUploadRate());
// First get the preferences
JSONObject prefs = new JSONObject(makeRequest(log, "/json/preferences"));
prefs.put("dl_limit", dl);
prefs.put("up_limit", ul);
makeRequest(log, "/command/setPreferences", new BasicNameValuePair("json", URLEncoder.encode(prefs.toString(), HTTP.UTF_8)));
return new DaemonTaskSuccessResult(task);
default:
return new DaemonTaskFailureResult(task,
new DaemonException(ExceptionType.MethodUnsupported, task.getMethod() + " is not supported by " + getType()));
}
} catch (JSONException e) {
return new DaemonTaskFailureResult(task, new DaemonException(ExceptionType.ParsingFailed, e.toString()));
} catch (DaemonException e) {
return new DaemonTaskFailureResult(task, e);
} catch (UnsupportedEncodingException e) {
return new DaemonTaskFailureResult(task, new DaemonException(ExceptionType.ParsingFailed, e.toString()));
}
}
private String makeRequest(Log log, String path, NameValuePair... params) throws DaemonException {
try {
// Setup request using POST
HttpPost httppost = new HttpPost(buildWebUIUrl(path));
List<NameValuePair> nvps = new ArrayList<>();
Collections.addAll(nvps, params);
httppost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
return makeWebRequest(httppost, log);
} catch (UnsupportedEncodingException e) {
throw new DaemonException(ExceptionType.ConnectionError, e.toString());
}
}
private String makeUploadRequest(String path, String file, Log log) throws DaemonException {
try {
// Setup request using POST
HttpPost httppost = new HttpPost(buildWebUIUrl(path));
File upload = new File(URI.create(file));
Part[] parts = {new FilePart("torrentfile", upload)};
httppost.setEntity(new MultipartEntity(parts, httppost.getParams()));
return makeWebRequest(httppost, log);
} catch (FileNotFoundException e) {
throw new DaemonException(ExceptionType.FileAccessError, e.toString());
}
}
private String makeWebRequest(HttpPost httppost, Log log) throws DaemonException {
try {
// Initialise the HTTP client
if (httpclient == null) {
initialise();
}
// Execute
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
if (entity != null) {
// Read JSON response
java.io.InputStream instream = entity.getContent();
String result = HttpHelper.convertStreamToString(instream);
instream.close();
// TLog.d(LOG_NAME, "Success: " + (result.length() > 300? result.substring(0, 300) + "... (" +
// result.length() + " chars)": result));
// Return raw result
return result;
}
log.d(LOG_NAME, "Error: No entity in HTTP response");
throw new DaemonException(ExceptionType.UnexpectedResponse, "No HTTP entity object in response.");
} catch (Exception e) {
log.d(LOG_NAME, "Error: " + e.toString());
throw new DaemonException(ExceptionType.ConnectionError, e.toString());
}
}
/**
* Instantiates an HTTP client with proper credentials that can be used for all qBittorrent requests.
* @throws DaemonException On conflicting or missing settings
*/
private void initialise() throws DaemonException {
httpclient = HttpHelper.createStandardHttpClient(settings, true);
}
/**
* Build the URL of the web UI request from the user settings
* @return The URL to request
*/
private String buildWebUIUrl(String path) {
return (settings.getSsl() ? "https://" : "http://") + settings.getAddress() + ":" + settings.getPort() + path;
}
private TorrentDetails parseJsonTorrentDetails(JSONArray messages) throws JSONException {
ArrayList<String> trackers = new ArrayList<>();
ArrayList<String> errors = new ArrayList<>();
// Parse response
if (messages.length() > 0) {
for (int i = 0; i < messages.length(); i++) {
JSONObject tor = messages.getJSONObject(i);
trackers.add(tor.getString("url"));
String msg = tor.getString("msg");
if (msg != null && !msg.equals(""))
errors.add(msg);
}
}
// Return the list
return new TorrentDetails(trackers, errors);
}
private ArrayList<Torrent> parseJsonTorrents(JSONArray response) throws JSONException {
// Parse response
ArrayList<Torrent> torrents = new ArrayList<>();
for (int i = 0; i < response.length(); i++) {
JSONObject tor = response.getJSONObject(i);
int leechers[] = parsePeers(tor.getString("num_leechs"));
int seeders[] = parsePeers(tor.getString("num_seeds"));
double ratio = parseRatio(tor.getString("ratio"));
double progress = tor.getDouble("progress");
long size;
int dlspeed;
int upspeed;
if (apiVersion >= 2) {
size = tor.getLong("size");
dlspeed = tor.getInt("dlspeed");
upspeed = tor.getInt("upspeed");
} else {
size = parseSize(tor.getString("size"));
dlspeed = parseSpeed(tor.getString("dlspeed"));
upspeed = parseSpeed(tor.getString("upspeed"));
}
long eta = -1L;
if (dlspeed > 0)
eta = (long) (size - (size * progress)) / dlspeed;
// Date added is only available in /json/propertiesGeneral on a per-torrent basis, unfortunately
// Add the parsed torrent to the list
// @formatter:off
torrents.add(new Torrent(
(long) i,
tor.getString("hash"),
tor.getString("name"),
parseStatus(tor.getString("state")),
null,
dlspeed,
upspeed,
seeders[0],
seeders[1],
leechers[0],
leechers[1],
(int) eta,
(long) (size * progress),
(long) (size * ratio),
size,
(float) progress,
0f,
null,
null,
null,
null,
settings.getType()));
// @formatter:on
}
// Return the list
return torrents;
}
private double parseRatio(String string) {
// Ratio is given in "1.5" string format
try {
return Double.parseDouble(normalizeNumber(string));
} catch (Exception e) {
return 0D;
}
}
private long parseSize(String string) {
// See https://github.com/qbittorrent/qBittorrent/wiki/WebUI-API-Documentation
if (string.equals("Unknown"))
return -1;
// Sizes are given in "1,023.3 MiB"-like string format
String[] parts = string.split(" ");
double number;
try {
number = Double.parseDouble(normalizeNumber(parts[0]));
} catch (Exception e) {
return -1L;
}
// Returns size in B-based long
if (parts[1].equals("TiB")) {
return (long) (number * 1024L * 1024L * 1024L * 1024L);
} else if (parts[1].equals("GiB")) {
return (long) (number * 1024L * 1024L * 1024L);
} else if (parts[1].equals("MiB")) {
return (long) (number * 1024L * 1024L);
} else if (parts[1].equals("KiB")) {
return (long) (number * 1024L);
}
return (long) number;
}
private int[] parsePeers(String seeds) {
// Peers (seeders or leechers) are defined in a string like "num_seeds":"6 (27)"
// In some situations it it just a "6" string
String[] parts = seeds.split(" ");
if (parts.length > 1) {
return new int[]{Integer.parseInt(parts[0]), Integer.parseInt(parts[1].substring(1, parts[1].length() - 1))};
}
return new int[]{Integer.parseInt(parts[0]), Integer.parseInt(parts[0])};
}
private int parseSpeed(String speed) {
// See https://github.com/qbittorrent/qBittorrent/wiki/WebUI-API-Documentation
if (speed.equals("Unknown"))
return -1;
// Sizes are given in "1,023.3 KiB/s"-like string format
String[] parts = speed.split(" ");
double number;
try {
number = Double.parseDouble(normalizeNumber(parts[0]));
} catch (Exception e) {
return -1;
}
// Returns size in B-based int
if (parts[1].equals("GiB/s")) {
return (int) (number * 1024 * 1024 * 1024);
} else if (parts[1].equals("MiB/s")) {
return (int) (number * 1024 * 1024);
} else if (parts[1].equals("KiB/s")) {
return (int) (number * 1024);
}
return (int) (Double.parseDouble(normalizeNumber(parts[0])));
}
private String normalizeNumber(String in) {
// FIXME Hack for issue #115: Strip the possible . and , separators in a hopefully reliable fashion, for now
if (in.length() >= 3) {
String part1 = in.substring(0, in.length() - 3);
String part2 = in.substring(in.length() - 3);
return part1.replace("Ê", "").replace(" ", "").replace(",", "").replace(".", "") + part2.replace(",", ".");
}
return in.replace(",", ".");
}
private TorrentStatus parseStatus(String state) {
// Status is given as a descriptive string
if (state.equals("downloading")) {
return TorrentStatus.Downloading;
} else if (state.equals("uploading")) {
return TorrentStatus.Seeding;
} else if (state.equals("pausedDL")) {
return TorrentStatus.Paused;
} else if (state.equals("pausedUL")) {
return TorrentStatus.Paused;
} else if (state.equals("stalledUP")) {
return TorrentStatus.Seeding;
} else if (state.equals("stalledDL")) {
return TorrentStatus.Downloading;
} else if (state.equals("checkingUP")) {
return TorrentStatus.Checking;
} else if (state.equals("checkingDL")) {
return TorrentStatus.Checking;
} else if (state.equals("queuedDL")) {
return TorrentStatus.Queued;
} else if (state.equals("queuedUL")) {
return TorrentStatus.Queued;
}
return TorrentStatus.Unknown;
}
private ArrayList<TorrentFile> parseJsonFiles(JSONArray response) throws JSONException {
// Parse response
ArrayList<TorrentFile> torrentfiles = new ArrayList<TorrentFile>();
for (int i = 0; i < response.length(); i++) {
JSONObject file = response.getJSONObject(i);
long size;
if (apiVersion >= 2) {
size = file.getLong("size");
} else {
size = parseSize(file.getString("size"));
}
torrentfiles.add(new TorrentFile("" + i, file.getString("name"), null, null, size, (long) (size * file.getDouble("progress")),
parsePriority(file.getInt("priority"))));
}
// Return the list
return torrentfiles;
}
private Priority parsePriority(int priority) {
// Priority is an integer
// Actually 1 = Normal, 2 = High, 7 = Maximum, but adjust this to Transdroid values
if (priority == 0) {
return Priority.Off;
} else if (priority == 1) {
return Priority.Low;
} else if (priority == 2) {
return Priority.Normal;
}
return Priority.High;
}
@Override
public Daemon getType() {
return settings.getType();
}
@Override
public DaemonSettings getSettings() {
return this.settings;
}
}