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author | 2018-04-02 16:47:02 +0300 | |
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committer | 2018-04-02 16:47:02 +0300 | |
commit | 5b5ca32a22e2e8e95c9bca86ce23d19c4a69f83d (patch) | |
tree | b65bd56a0a7fdd59ced863e4a0063ed6510840c0 /juick-server-xmpp/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java | |
parent | 22ee9166d87a9b6a853c25c5f2bb3ff95aacad35 (diff) |
xmpp: move to library project
Diffstat (limited to 'juick-server-xmpp/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java')
-rw-r--r-- | juick-server-xmpp/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/juick-server-xmpp/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java b/juick-server-xmpp/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java new file mode 100644 index 00000000..9ee81d4d --- /dev/null +++ b/juick-server-xmpp/src/main/java/com/juick/server/xmpp/s2s/ConnectionIn.java @@ -0,0 +1,213 @@ +/* + * Copyright (C) 2008-2017, Juick + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * This program 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +package com.juick.server.xmpp.s2s; + +import com.juick.server.XMPPServer; +import com.juick.xmpp.extensions.StreamError; +import com.juick.xmpp.utils.XmlUtils; +import org.apache.commons.lang3.StringUtils; +import org.xmlpull.v1.XmlPullParser; +import org.xmlpull.v1.XmlPullParserException; +import rocks.xmpp.addr.Jid; + +import java.io.EOFException; +import java.io.IOException; +import java.net.Socket; +import java.net.SocketException; +import java.time.Instant; +import java.util.Arrays; +import java.util.List; +import java.util.UUID; +import java.util.concurrent.CopyOnWriteArrayList; + +/** + * @author ugnich + */ +public class ConnectionIn extends Connection implements Runnable { + + final public List<Jid> from = new CopyOnWriteArrayList<>(); + public Instant received; + public long packetsRemote = 0; + ConnectionListener listener; + + public ConnectionIn(XMPPServer xmpp, Socket socket) throws XmlPullParserException, IOException { + super(xmpp); + this.setSocket(socket); + restartParser(); + } + + @Override + public void run() { + try { + parser.next(); // stream:stream + updateTsRemoteData(); + if (!parser.getName().equals("stream") + || !parser.getNamespace("stream").equals(NS_STREAM)) { +// || !parser.getAttributeValue(null, "version").equals("1.0") +// || !parser.getAttributeValue(null, "to").equals(Main.HOSTNAME)) { + throw new Exception(String.format("stream from %s invalid", getSocket().getRemoteSocketAddress())); + } + streamID = parser.getAttributeValue(null, "id"); + if (streamID == null) { + streamID = UUID.randomUUID().toString(); + } + boolean xmppversionnew = parser.getAttributeValue(null, "version") != null; + String from = parser.getAttributeValue(null, "from"); + + if (Arrays.asList(xmpp.bannedHosts).contains(from)) { + closeConnection(); + return; + } + sendOpenStream(from, xmppversionnew); + + while (parser.next() != XmlPullParser.END_DOCUMENT) { + updateTsRemoteData(); + if (parser.getEventType() != XmlPullParser.START_TAG) { + continue; + } + logParser(); + + packetsRemote++; + + String tag = parser.getName(); + if (tag.equals("result") && parser.getNamespace().equals(NS_DB)) { + String dfrom = parser.getAttributeValue(null, "from"); + String to = parser.getAttributeValue(null, "to"); + logger.debug("stream from {} to {} {} asking for dialback", dfrom, to, streamID); + if (dfrom.endsWith(xmpp.getJid().toEscapedString()) && (dfrom.equals(xmpp.getJid().toEscapedString()) + || dfrom.endsWith("." + xmpp.getJid()))) { + logger.warn("stream from {} is invalid", dfrom); + break; + } + if (to != null && to.equals(xmpp.getJid().toEscapedString())) { + String dbKey = XmlUtils.getTagText(parser); + updateTsRemoteData(); + xmpp.startDialback(Jid.of(dfrom), streamID, dbKey); + } else { + logger.warn("stream from " + dfrom + " " + streamID + " invalid to " + to); + break; + } + } else if (tag.equals("verify") && parser.getNamespace().equals(NS_DB)) { + String vfrom = parser.getAttributeValue(null, "from"); + String vto = parser.getAttributeValue(null, "to"); + String vid = parser.getAttributeValue(null, "id"); + String vkey = XmlUtils.getTagText(parser); + updateTsRemoteData(); + final boolean[] valid = {false}; + if (vfrom != null && vto != null && vid != null && vkey != null) { + xmpp.getConnectionOut(Jid.of(vfrom), false).ifPresent(c -> { + String dialbackKey = c.dbKey; + valid[0] = vkey.equals(dialbackKey); + }); + } + if (valid[0]) { + sendStanza("<db:verify from='" + vto + "' to='" + vfrom + "' id='" + vid + "' type='valid'/>"); + logger.debug("stream from {} {} dialback verify valid", vfrom, streamID); + } else { + sendStanza("<db:verify from='" + vto + "' to='" + vfrom + "' id='" + vid + "' type='invalid'/>"); + logger.warn("stream from {} {} dialback verify invalid", vfrom, streamID); + } + } else if (tag.equals("presence") && checkFromTo(parser)) { + String xml = XmlUtils.parseToString(parser, false); + logger.debug("stream {} presence: {}", streamID, xml); + xmpp.onStanzaReceived(xml); + } else if (tag.equals("message") && checkFromTo(parser)) { + updateTsRemoteData(); + String xml = XmlUtils.parseToString(parser, false); + logger.debug("stream {} message: {}", streamID, xml); + xmpp.onStanzaReceived(xml); + + } else if (tag.equals("iq") && checkFromTo(parser)) { + updateTsRemoteData(); + String type = parser.getAttributeValue(null, "type"); + String xml = XmlUtils.parseToString(parser, false); + if (type == null || !type.equals("error")) { + logger.debug("stream {} iq: {}", streamID, xml); + xmpp.onStanzaReceived(xml); + } + } else if (!isSecured() && tag.equals("starttls")) { + listener.starttls(this); + } else if (isSecured() && tag.equals("stream") && parser.getNamespace().equals(NS_STREAM)) { + sendOpenStream(null, true); + } else if (tag.equals("error")) { + StreamError streamError = StreamError.parse(parser); + logger.debug("Stream error from {}: {}", streamID, streamError.getCondition()); + xmpp.removeConnectionIn(this); + closeConnection(); + } else { + String unhandledStanza = XmlUtils.parseToString(parser, true); + logger.warn("Unhandled stanza from {}: {}", streamID, unhandledStanza); + } + } + logger.warn("stream {} finished", streamID); + xmpp.removeConnectionIn(this); + closeConnection(); + } catch (EOFException | SocketException ex) { + logger.debug("stream {} closed (dirty)", streamID); + xmpp.removeConnectionIn(this); + closeConnection(); + } catch (Exception e) { + logger.debug("stream {} error {}", streamID, e); + xmpp.removeConnectionIn(this); + closeConnection(); + } + } + + void updateTsRemoteData() { + received = Instant.now(); + } + + void sendOpenStream(String from, boolean xmppversionnew) throws IOException { + String openStream = "<?xml version='1.0'?><stream:stream xmlns='jabber:server' " + + "xmlns:stream='http://etherx.jabber.org/streams' xmlns:db='jabber:server:dialback' from='" + + xmpp.getJid().toEscapedString() + "' id='" + streamID + "' version='1.0'>"; + if (xmppversionnew) { + openStream += "<stream:features>"; + if (listener != null && listener.isTlsAvailable() && !isSecured() && !Arrays.asList(xmpp.brokenSSLhosts).contains(from)) { + openStream += "<starttls xmlns=\"" + NS_TLS + "\"><optional/></starttls>"; + } + openStream += "</stream:features>"; + } + sendStanza(openStream); + } + + public void sendDialbackResult(Jid sfrom, String type) { + sendStanza("<db:result from='" + xmpp.getJid().toEscapedString() + "' to='" + sfrom + "' type='" + type + "'/>"); + if (type.equals("valid")) { + from.add(sfrom); + logger.debug("stream from {} {} ready", sfrom, streamID); + } + } + + boolean checkFromTo(XmlPullParser parser) throws Exception { + String cfrom = parser.getAttributeValue(null, "from"); + String cto = parser.getAttributeValue(null, "to"); + if (StringUtils.isNotEmpty(cfrom) && StringUtils.isNotEmpty(cto)) { + Jid jidfrom = Jid.of(cfrom); + for (Jid aFrom : from) { + if (aFrom.equals(Jid.of(jidfrom.getDomain()))) { + return true; + } + } + } + return false; + } + public void setListener(ConnectionListener listener) { + this.listener = listener; + } +} |