Examples with Peer com.biglybt.pif.peers.Peer used on opensource projects

Example 6 with Peer

use of com.biglybt.pif.peers.Peer in project BiglyBT by BiglySoftware.

the class DHTTrackerPlugin method trackerGet.

protected int trackerGet(final Download download, final RegistrationDetails details, final boolean derived_only) {
    final long start = SystemTime.getCurrentTime();
    final Torrent torrent = download.getTorrent();
    final URL url_to_report = torrent.isDecentralised() ? torrent.getAnnounceURL() : DEFAULT_URL;
    trackerTarget[] targets = details.getTargets(false);
    final long[] max_retry = { 0 };
    final boolean do_alt = alt_lookup_handler != null && (!(download.getFlag(Download.FLAG_LOW_NOISE) || download.getFlag(Download.FLAG_LIGHT_WEIGHT)));
    int num_done = 0;
    for (int i = 0; i < targets.length; i++) {
        final trackerTarget target = targets[i];
        int target_type = target.getType();
        if (target_type == REG_TYPE_FULL && derived_only) {
            continue;
        } else if (target_type == REG_TYPE_DERIVED && dht.isSleeping()) {
            continue;
        }
        increaseActive(download);
        num_done++;
        final boolean is_complete = isComplete(download);
        dht.get(target.getHash(), "Tracker announce for '" + download.getName() + "'" + target.getDesc(), is_complete ? DHTPlugin.FLAG_SEEDING : DHTPlugin.FLAG_DOWNLOADING, NUM_WANT, target_type == REG_TYPE_FULL ? ANNOUNCE_TIMEOUT : ANNOUNCE_DERIVED_TIMEOUT, false, false, new DHTPluginOperationListener() {

            List<String> addresses = new ArrayList<>();

            List<Integer> ports = new ArrayList<>();

            List<Integer> udp_ports = new ArrayList<>();

            List<Boolean> is_seeds = new ArrayList<>();

            List<String> flags = new ArrayList<>();

            int seed_count;

            int leecher_count;

            int i2p_seed_count;

            int i2p_leecher_count;

            volatile boolean complete;

            {
                if (do_alt) {
                    alt_lookup_handler.get(target.getHash(), is_complete, new DHTTrackerPluginAlt.LookupListener() {

                        @Override
                        public void foundPeer(InetSocketAddress address) {
                            alternativePeerRead(address);
                        }

                        @Override
                        public boolean isComplete() {
                            return (complete && addresses.size() > 5);
                        }

                        @Override
                        public void completed() {
                        }
                    });
                }
            }

            @Override
            public boolean diversified() {
                return (true);
            }

            @Override
            public void starts(byte[] key) {
            }

            private void alternativePeerRead(InetSocketAddress peer) {
                boolean try_injection = false;
                synchronized (this) {
                    if (complete) {
                        try_injection = addresses.size() < 5;
                    } else {
                        try {
                            addresses.add(peer.getAddress().getHostAddress());
                            ports.add(peer.getPort());
                            udp_ports.add(0);
                            flags.add(null);
                            is_seeds.add(false);
                            leecher_count++;
                        } catch (Throwable e) {
                        }
                    }
                }
                if (try_injection) {
                    PeerManager pm = download.getPeerManager();
                    if (pm != null) {
                        pm.peerDiscovered(PEPeerSource.PS_DHT, peer.getAddress().getHostAddress(), peer.getPort(), 0, NetworkManager.getCryptoRequired(NetworkManager.CRYPTO_OVERRIDE_NONE));
                    }
                }
            }

            @Override
            public void valueRead(DHTPluginContact originator, DHTPluginValue value) {
                synchronized (this) {
                    if (complete) {
                        return;
                    }
                    try {
                        String[] tokens = new String(value.getValue()).split(";");
                        String tcp_part = tokens[0].trim();
                        int sep = tcp_part.indexOf(':');
                        String ip_str = null;
                        String tcp_port_str;
                        if (sep == -1) {
                            tcp_port_str = tcp_part;
                        } else {
                            ip_str = tcp_part.substring(0, sep);
                            tcp_port_str = tcp_part.substring(sep + 1);
                        }
                        int tcp_port = Integer.parseInt(tcp_port_str);
                        if (tcp_port > 0 && tcp_port < 65536) {
                            String flag_str = null;
                            int udp_port = -1;
                            boolean has_i2p = false;
                            try {
                                for (int i = 1; i < tokens.length; i++) {
                                    String token = tokens[i].trim();
                                    if (token.length() > 0) {
                                        if (Character.isDigit(token.charAt(0))) {
                                            udp_port = Integer.parseInt(token);
                                            if (udp_port <= 0 || udp_port >= 65536) {
                                                udp_port = -1;
                                            }
                                        } else {
                                            flag_str = token;
                                            if (flag_str.contains("I")) {
                                                has_i2p = true;
                                            }
                                        }
                                    }
                                }
                            } catch (Throwable e) {
                            }
                            addresses.add(ip_str == null ? originator.getAddress().getAddress().getHostAddress() : ip_str);
                            ports.add(new Integer(tcp_port));
                            udp_ports.add(new Integer(udp_port == -1 ? originator.getAddress().getPort() : udp_port));
                            flags.add(flag_str);
                            if ((value.getFlags() & DHTPlugin.FLAG_DOWNLOADING) == 1) {
                                leecher_count++;
                                is_seeds.add(Boolean.FALSE);
                                if (has_i2p) {
                                    i2p_leecher_count++;
                                }
                            } else {
                                is_seeds.add(Boolean.TRUE);
                                seed_count++;
                                if (has_i2p) {
                                    i2p_seed_count++;
                                }
                            }
                        }
                    } catch (Throwable e) {
                    // in case we get crap back (someone spamming the DHT) just
                    // silently ignore
                    }
                }
            }

            @Override
            public void valueWritten(DHTPluginContact target, DHTPluginValue value) {
            }

            @Override
            public void complete(byte[] key, boolean timeout_occurred) {
                synchronized (this) {
                    if (complete) {
                        return;
                    }
                    complete = true;
                }
                if (target.getType() == REG_TYPE_FULL || (target.getType() == REG_TYPE_DERIVED && seed_count + leecher_count > 1)) {
                    log(download, "Get of '" + target.getDesc() + "' completed (elapsed=" + TimeFormatter.formatColonMillis(SystemTime.getCurrentTime() - start) + "), addresses=" + addresses.size() + ", seeds=" + seed_count + ", leechers=" + leecher_count);
                }
                decreaseActive(download);
                int peers_found = addresses.size();
                List<DownloadAnnounceResultPeer> peers_for_announce = new ArrayList<>();
                // scale min and max based on number of active torrents
                // we don't want more than a few announces a minute
                int announce_per_min = 4;
                int num_active = query_map.size();
                int announce_min = Math.max(ANNOUNCE_MIN_DEFAULT, (num_active / announce_per_min) * 60 * 1000);
                int announce_max = derived_only ? ANNOUNCE_MAX_DERIVED_ONLY : ANNOUNCE_MAX;
                announce_min = Math.min(announce_min, announce_max);
                current_announce_interval = announce_min;
                final long retry = announce_min + peers_found * (long) (announce_max - announce_min) / NUM_WANT;
                int download_state = download.getState();
                boolean we_are_seeding = download_state == Download.ST_SEEDING;
                try {
                    this_mon.enter();
                    int[] run_data = running_downloads.get(download);
                    if (run_data != null) {
                        boolean full = target.getType() == REG_TYPE_FULL;
                        int peer_count = we_are_seeding ? leecher_count : (seed_count + leecher_count);
                        run_data[1] = full ? seed_count : Math.max(run_data[1], seed_count);
                        run_data[2] = full ? leecher_count : Math.max(run_data[2], leecher_count);
                        run_data[3] = full ? peer_count : Math.max(run_data[3], peer_count);
                        run_data[4] = (int) (SystemTime.getCurrentTime() / 1000);
                        long absolute_retry = SystemTime.getCurrentTime() + retry;
                        if (absolute_retry > max_retry[0]) {
                            // only update next query time if none set yet
                            // or we appear to have set the existing one. If we
                            // don't do this then we'll overwrite any rescheduled
                            // announces
                            Long existing = (Long) query_map.get(download);
                            if (existing == null || existing.longValue() == max_retry[0]) {
                                max_retry[0] = absolute_retry;
                                query_map.put(download, new Long(absolute_retry));
                            }
                        }
                    }
                } finally {
                    this_mon.exit();
                }
                putDetails put_details = details.getPutDetails();
                String ext_address = put_details.getIPOverride();
                if (ext_address == null) {
                    ext_address = dht.getLocalAddress().getAddress().getAddress().getHostAddress();
                }
                if (put_details.hasI2P()) {
                    if (we_are_seeding) {
                        if (i2p_seed_count > 0) {
                            i2p_seed_count--;
                        }
                    } else {
                        if (i2p_leecher_count > 0) {
                            i2p_leecher_count--;
                        }
                    }
                }
                if (i2p_seed_count + i2p_leecher_count > 0) {
                    download.setUserData(DOWNLOAD_USER_DATA_I2P_SCRAPE_KEY, new int[] { i2p_seed_count, i2p_leecher_count });
                } else {
                    download.setUserData(DOWNLOAD_USER_DATA_I2P_SCRAPE_KEY, null);
                }
                for (int i = 0; i < addresses.size(); i++) {
                    if (we_are_seeding && ((Boolean) is_seeds.get(i)).booleanValue()) {
                        continue;
                    }
                    // remove ourselves
                    String ip = (String) addresses.get(i);
                    if (ip.equals(ext_address)) {
                        if (((Integer) ports.get(i)).intValue() == put_details.getTCPPort() && ((Integer) udp_ports.get(i)).intValue() == put_details.getUDPPort()) {
                            continue;
                        }
                    }
                    final int f_i = i;
                    peers_for_announce.add(new DownloadAnnounceResultPeer() {

                        @Override
                        public String getSource() {
                            return (PEPeerSource.PS_DHT);
                        }

                        @Override
                        public String getAddress() {
                            return ((String) addresses.get(f_i));
                        }

                        @Override
                        public int getPort() {
                            return (((Integer) ports.get(f_i)).intValue());
                        }

                        @Override
                        public int getUDPPort() {
                            return (((Integer) udp_ports.get(f_i)).intValue());
                        }

                        @Override
                        public byte[] getPeerID() {
                            return (null);
                        }

                        @Override
                        public short getProtocol() {
                            String flag = (String) flags.get(f_i);
                            short protocol = DownloadAnnounceResultPeer.PROTOCOL_NORMAL;
                            if (flag != null) {
                                if (flag.contains("C")) {
                                    protocol = DownloadAnnounceResultPeer.PROTOCOL_CRYPT;
                                }
                            }
                            return (protocol);
                        }
                    });
                }
                if (target.getType() == REG_TYPE_DERIVED && peers_for_announce.size() > 0) {
                    PeerManager pm = download.getPeerManager();
                    if (pm != null) {
                        // try some limited direct injection
                        List<DownloadAnnounceResultPeer> temp = new ArrayList<>(peers_for_announce);
                        Random rand = new Random();
                        for (int i = 0; i < DIRECT_INJECT_PEER_MAX && temp.size() > 0; i++) {
                            DownloadAnnounceResultPeer peer = temp.remove(rand.nextInt(temp.size()));
                            log(download, "Injecting derived peer " + peer.getAddress() + " into " + download.getName());
                            Map<Object, Object> user_data = new HashMap<>();
                            user_data.put(Peer.PR_PRIORITY_CONNECTION, Boolean.TRUE);
                            pm.addPeer(peer.getAddress(), peer.getPort(), peer.getUDPPort(), peer.getProtocol() == DownloadAnnounceResultPeer.PROTOCOL_CRYPT, user_data);
                        }
                    }
                }
                if (download_state == Download.ST_DOWNLOADING || download_state == Download.ST_SEEDING) {
                    final DownloadAnnounceResultPeer[] peers = new DownloadAnnounceResultPeer[peers_for_announce.size()];
                    peers_for_announce.toArray(peers);
                    download.setAnnounceResult(new DownloadAnnounceResult() {

                        @Override
                        public Download getDownload() {
                            return (download);
                        }

                        @Override
                        public int getResponseType() {
                            return (DownloadAnnounceResult.RT_SUCCESS);
                        }

                        @Override
                        public int getReportedPeerCount() {
                            return (peers.length);
                        }

                        @Override
                        public int getSeedCount() {
                            return (seed_count);
                        }

                        @Override
                        public int getNonSeedCount() {
                            return (leecher_count);
                        }

                        @Override
                        public String getError() {
                            return (null);
                        }

                        @Override
                        public URL getURL() {
                            return (url_to_report);
                        }

                        @Override
                        public DownloadAnnounceResultPeer[] getPeers() {
                            return (peers);
                        }

                        @Override
                        public long getTimeToWait() {
                            return (retry / 1000);
                        }

                        @Override
                        public Map getExtensions() {
                            return (null);
                        }
                    });
                }
                // only inject the scrape result if the torrent is decentralised. If we do this for
                // "normal" torrents then it can have unwanted side-effects, such as stopping the torrent
                // due to ignore rules if there are no downloaders in the DHT - bthub backup, for example,
                // isn't scrapable...
                // hmm, ok, try being a bit more relaxed about this, inject the scrape if
                // we have any peers.
                boolean inject_scrape = leecher_count > 0;
                DownloadScrapeResult result = download.getLastScrapeResult();
                if (result == null || result.getResponseType() == DownloadScrapeResult.RT_ERROR) {
                } else {
                    synchronized (scrape_injection_map) {
                        int[] prev = (int[]) scrape_injection_map.get(download);
                        if (prev != null && prev[0] == result.getSeedCount() && prev[1] == result.getNonSeedCount()) {
                            inject_scrape = true;
                        }
                    }
                }
                if (torrent.isDecentralised() || inject_scrape) {
                    // make sure that the injected scrape values are consistent
                    // with our currently connected peers
                    PeerManager pm = download.getPeerManager();
                    int local_seeds = 0;
                    int local_leechers = 0;
                    if (pm != null) {
                        Peer[] dl_peers = pm.getPeers();
                        for (int i = 0; i < dl_peers.length; i++) {
                            Peer dl_peer = dl_peers[i];
                            if (dl_peer.getPercentDoneInThousandNotation() == 1000) {
                                local_seeds++;
                            } else {
                                local_leechers++;
                            }
                        }
                    }
                    final int f_adj_seeds = Math.max(seed_count, local_seeds);
                    final int f_adj_leechers = Math.max(leecher_count, local_leechers);
                    synchronized (scrape_injection_map) {
                        scrape_injection_map.put(download, new int[] { f_adj_seeds, f_adj_leechers });
                    }
                    try {
                        this_mon.enter();
                        int[] run_data = running_downloads.get(download);
                        if (run_data == null) {
                            run_data = run_data_cache.get(download);
                        }
                        if (run_data != null) {
                            run_data[1] = f_adj_seeds;
                            run_data[2] = f_adj_leechers;
                            run_data[4] = (int) (SystemTime.getCurrentTime() / 1000);
                        }
                    } finally {
                        this_mon.exit();
                    }
                    download.setScrapeResult(new DownloadScrapeResult() {

                        @Override
                        public Download getDownload() {
                            return (download);
                        }

                        @Override
                        public int getResponseType() {
                            return (DownloadScrapeResult.RT_SUCCESS);
                        }

                        @Override
                        public int getSeedCount() {
                            return (f_adj_seeds);
                        }

                        @Override
                        public int getNonSeedCount() {
                            return (f_adj_leechers);
                        }

                        @Override
                        public long getScrapeStartTime() {
                            return (start);
                        }

                        @Override
                        public void setNextScrapeStartTime(long nextScrapeStartTime) {
                        }

                        @Override
                        public long getNextScrapeStartTime() {
                            return (SystemTime.getCurrentTime() + retry);
                        }

                        @Override
                        public String getStatus() {
                            return ("OK");
                        }

                        @Override
                        public URL getURL() {
                            return (url_to_report);
                        }
                    });
                }
            }
        });
    }
    return (num_done);
}