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return InvalidJid object instead of null if Jid can not be parsed

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This commit is contained in:
Daniel Gultsch 2018-04-28 16:26:40 +02:00
parent 8c1458abbf
commit 322463bab7
12 changed files with 249 additions and 69 deletions
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3
src/main/java/eu/siacs/conversations/entities/Bookmark.java
View file

@ -11,6 +11,7 @@ import java.util.Locale;
import eu.siacs.conversations.utils.UIHelper;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.InvalidJid;
import rocks.xmpp.addr.Jid;
public class Bookmark extends Element implements ListItem {
@ -35,7 +36,7 @@ public class Bookmark extends Element implements ListItem {
Bookmark bookmark = new Bookmark(account);
bookmark.setAttributes(element.getAttributes());
bookmark.setChildren(element.getChildren());
bookmark.jid = bookmark.getAttributeAsJid("jid");
bookmark.jid = InvalidJid.getNullForInvalid(bookmark.getAttributeAsJid("jid"));
return bookmark;
}

5
src/main/java/eu/siacs/conversations/parser/AbstractParser.java
View file

@ -11,6 +11,7 @@ import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.MucOptions;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.InvalidJid;
import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
import rocks.xmpp.addr.Jid;
@ -37,7 +38,7 @@ public abstract class AbstractParser {
}
for(Element child : element.getChildren()) {
if ("delay".equals(child.getName()) && "urn:xmpp:delay".equals(child.getNamespace())) {
final Jid f = to == null ? null : child.getAttributeAsJid("from");
final Jid f = to == null ? null : InvalidJid.getNullForInvalid(child.getAttributeAsJid("from"));
if (f != null && (to.asBareJid().equals(f) || to.getDomain().equals(f.toString()))) {
continue;
}
@ -115,7 +116,9 @@ public abstract class AbstractParser {
}
Jid realJid = item.getAttributeAsJid("jid");
MucOptions.User user = new MucOptions.User(conference.getMucOptions(), fullJid);
if (InvalidJid.isValid(realJid)) {
user.setRealJid(realJid);
}
user.setAffiliation(affiliation);
user.setRole(role);
return user;

7
src/main/java/eu/siacs/conversations/parser/IqParser.java
View file

@ -29,6 +29,7 @@ import eu.siacs.conversations.entities.Contact;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.xml.Namespace;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.InvalidJid;
import eu.siacs.conversations.xmpp.OnIqPacketReceived;
import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
@ -47,7 +48,7 @@ public class IqParser extends AbstractParser implements OnIqPacketReceived {
}
for (final Element item : query.getChildren()) {
if (item.getName().equals("item")) {
final Jid jid = item.getAttributeAsJid("jid");
final Jid jid = InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
if (jid == null) {
continue;
}
@ -310,7 +311,7 @@ public class IqParser extends AbstractParser implements OnIqPacketReceived {
// Create a collection of Jids from the packet
for (final Element item : items) {
if (item.getName().equals("item")) {
final Jid jid = item.getAttributeAsJid("jid");
final Jid jid = InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
if (jid != null) {
jids.add(jid);
}
@ -344,7 +345,7 @@ public class IqParser extends AbstractParser implements OnIqPacketReceived {
final Collection<Jid> jids = new ArrayList<>(items.size());
for (final Element item : items) {
if (item.getName().equals("item")) {
final Jid jid = item.getAttributeAsJid("jid");
final Jid jid = InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
if (jid != null) {
jids.add(jid);
}

25
src/main/java/eu/siacs/conversations/parser/MessageParser.java
View file

@ -32,6 +32,7 @@ import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.xml.Namespace;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.InvalidJid;
import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
import eu.siacs.conversations.xmpp.chatstate.ChatState;
import eu.siacs.conversations.xmpp.pep.Avatar;
@ -64,7 +65,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
for (Element child : packet.getChildren()) {
if (child.getName().equals("stanza-id")
&& Namespace.STANZA_IDS.equals(child.getNamespace())
&& by.equals(child.getAttributeAsJid("by"))) {
&& by.equals(InvalidJid.getNullForInvalid(child.getAttributeAsJid("by")))) {
return child.getAttribute("id");
}
}
@ -73,7 +74,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
Jid result = item == null ? null : item.getAttributeAsJid("jid");
Jid result = item == null ? null : InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
return result != null ? result : fallback;
}
@ -139,17 +140,25 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
if (x != null) {
Element invite = x.findChild("invite");
if (invite != null) {
Element pw = x.findChild("password");
Jid from = invite.getAttributeAsJid("from");
String password = x.findChildContent("password");
Jid from = InvalidJid.getNullForInvalid(invite.getAttributeAsJid("from"));
Contact contact = from == null ? null : account.getRoster().getContact(from);
return new Invite(message.getAttributeAsJid("from"), pw != null ? pw.getContent() : null, contact);
Jid room = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
if (room == null) {
return null;
}
return new Invite(room, password, contact);
}
} else {
x = message.findChild("x", "jabber:x:conference");
if (x != null) {
Jid from = message.getAttributeAsJid("from");
Jid from = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
Contact contact = from == null ? null : account.getRoster().getContact(from);
return new Invite(x.getAttributeAsJid("jid"), x.getAttribute("password"), contact);
Jid room = InvalidJid.getNullForInvalid(x.getAttributeAsJid("jid"));
if (room == null) {
return null;
}
return new Invite(room, x.getAttribute("password"), contact);
}
}
return null;
@ -693,7 +702,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
if (displayed != null) {
final String id = displayed.getAttribute("id");
final Jid sender = displayed.getAttributeAsJid("sender");
final Jid sender = InvalidJid.getNullForInvalid(displayed.getAttributeAsJid("sender"));
if (packet.fromAccount(account) && !selfAddressed) {
dismissNotification(account, counterpart, query);
} else if (isTypeGroupChat) {

3
src/main/java/eu/siacs/conversations/parser/PresenceParser.java
View file

@ -22,6 +22,7 @@ import eu.siacs.conversations.generator.PresenceGenerator;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xml.Namespace;
import eu.siacs.conversations.xmpp.InvalidJid;
import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
import eu.siacs.conversations.xmpp.pep.Avatar;
import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
@ -69,7 +70,7 @@ public class PresenceParser extends AbstractParser implements
if (item != null && !from.isBareJid()) {
mucOptions.setError(MucOptions.Error.NONE);
MucOptions.User user = parseItem(conversation, item, from);
if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE) || (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED) && jid.equals(item.getAttributeAsJid("jid")))) {
if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE) || (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED) && jid.equals(InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"))))) {
if (mucOptions.setOnline()) {
mXmppConnectionService.getAvatarService().clear(mucOptions);
}

3
src/main/java/eu/siacs/conversations/xml/Element.java
View file

@ -11,6 +11,7 @@ import java.util.Locale;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.utils.XmlHelper;
import eu.siacs.conversations.xmpp.InvalidJid;
import rocks.xmpp.addr.Jid;
public class Element {
@ -153,7 +154,7 @@ public class Element {
try {
return Jid.ofEscaped(jid);
} catch (final IllegalArgumentException e) {
return null;
return new InvalidJid(jid);
}
}
return null;

140
src/main/java/eu/siacs/conversations/xmpp/InvalidJid.java Normal file
View file

@ -0,0 +1,140 @@
/*
* Copyright (c) 2018, Daniel Gultsch All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package eu.siacs.conversations.xmpp;
import android.support.annotation.NonNull;
import rocks.xmpp.addr.Jid;
public class InvalidJid implements Jid {
private final String value;
public InvalidJid(String jid) {
this.value = jid;
}
@Override
@NonNull
public String toString() {
return value;
}
@Override
public boolean isFullJid() {
throw new AssertionError("Not implemented");
}
@Override
public boolean isBareJid() {
throw new AssertionError("Not implemented");
}
@Override
public Jid asBareJid() {
throw new AssertionError("Not implemented");
}
@Override
public Jid withLocal(CharSequence charSequence) {
throw new AssertionError("Not implemented");
}
@Override
public Jid withResource(CharSequence charSequence) {
throw new AssertionError("Not implemented");
}
@Override
public Jid atSubdomain(CharSequence charSequence) {
throw new AssertionError("Not implemented");
}
@Override
public String getLocal() {
throw new AssertionError("Not implemented");
}
@Override
public String getEscapedLocal() {
throw new AssertionError("Not implemented");
}
@Override
public String getDomain() {
throw new AssertionError("Not implemented");
}
@Override
public String getResource() {
throw new AssertionError("Not implemented");
}
@Override
public String toEscapedString() {
throw new AssertionError("Not implemented");
}
@Override
public int length() {
return value.length();
}
@Override
public char charAt(int index) {
return value.charAt(index);
}
@Override
public CharSequence subSequence(int start, int end) {
return value.subSequence(start, end);
}
@Override
public int compareTo(@NonNull Jid o) {
throw new AssertionError("Not implemented");
}
public static Jid getNullForInvalid(Jid jid) {
if (jid != null && jid instanceof InvalidJid) {
return null;
} else {
return jid;
}
}
public static boolean isValid(Jid jid) {
if (jid != null && jid instanceof InvalidJid) {
return false;
} else {
return true;
}
}
}

62
src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
View file

@ -5,6 +5,7 @@ import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.SystemClock;
import android.security.KeyChain;
import android.support.annotation.NonNull;
import android.util.Base64;
import android.util.Log;
import android.util.Pair;
@ -179,6 +180,25 @@ public class XmppConnection implements Runnable {
mXmppConnectionService = service;
}
private static void fixResource(Context context, Account account) {
String resource = account.getResource();
int fixedPartLength = context.getString(R.string.app_name).length() + 1; //include the trailing dot
int randomPartLength = 4; // 3 bytes
if (resource != null && resource.length() > fixedPartLength + randomPartLength) {
if (validBase64(resource.substring(fixedPartLength, fixedPartLength + randomPartLength))) {
account.setResource(resource.substring(0, fixedPartLength + randomPartLength));
}
}
}
private static boolean validBase64(String input) {
try {
return Base64.decode(input, Base64.URL_SAFE).length == 3;
} catch (Throwable throwable) {
return false;
}
}
protected void changeStatus(final Account.State nextStatus) {
synchronized (this) {
if (Thread.currentThread().isInterrupted()) {
@ -661,8 +681,8 @@ public class XmppConnection implements Runnable {
}
}
private Element processPacket(final Tag currentTag, final int packetType)
throws XmlPullParserException, IOException {
private @NonNull
Element processPacket(final Tag currentTag, final int packetType) throws XmlPullParserException, IOException {
Element element;
switch (packetType) {
case PACKET_IQ:
@ -675,7 +695,7 @@ public class XmppConnection implements Runnable {
element = new PresencePacket();
break;
default:
return null;
throw new AssertionError("Should never encounter invalid type");
}
element.setAttributes(currentTag.getAttributes());
Tag nextTag = tagReader.readTag();
@ -718,11 +738,10 @@ public class XmppConnection implements Runnable {
private void processIq(final Tag currentTag) throws XmlPullParserException, IOException {
final IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ);
if (packet.getId() == null) {
return; // an iq packet without id is definitely invalid
if (!packet.valid()) {
Log.e(Config.LOGTAG, "encountered invalid iq from='" + packet.getFrom() + "' to='" + packet.getTo() + "'");
return;
}
if (packet instanceof JinglePacket) {
if (this.jingleListener != null) {
this.jingleListener.onJinglePacketReceived(account, (JinglePacket) packet);
@ -764,11 +783,19 @@ public class XmppConnection implements Runnable {
private void processMessage(final Tag currentTag) throws XmlPullParserException, IOException {
final MessagePacket packet = (MessagePacket) processPacket(currentTag, PACKET_MESSAGE);
if (!packet.valid()) {
Log.e(Config.LOGTAG, "encountered invalid message from='" + packet.getFrom() + "' to='" + packet.getTo() + "'");
return;
}
this.messageListener.onMessagePacketReceived(account, packet);
}
private void processPresence(final Tag currentTag) throws XmlPullParserException, IOException {
PresencePacket packet = (PresencePacket) processPacket(currentTag, PACKET_PRESENCE);
if (!packet.valid()) {
Log.e(Config.LOGTAG, "encountered invalid presence from='" + packet.getFrom() + "' to='" + packet.getTo() + "'");
return;
}
this.presenceListener.onPresencePacketReceived(account, packet);
}
@ -1225,7 +1252,7 @@ public class XmppConnection implements Runnable {
final List<Element> elements = packet.query().getChildren();
for (final Element element : elements) {
if (element.getName().equals("item")) {
final Jid jid = element.getAttributeAsJid("jid");
final Jid jid = InvalidJid.getNullForInvalid(element.getAttributeAsJid("jid"));
if (jid != null && !jid.equals(Jid.of(account.getServer()))) {
items.add(jid);
}
@ -1298,25 +1325,6 @@ public class XmppConnection implements Runnable {
return mXmppConnectionService.getString(R.string.app_name) + '.' + nextRandomId(true);
}
private static void fixResource(Context context, Account account) {
String resource = account.getResource();
int fixedPartLength = context.getString(R.string.app_name).length() + 1; //include the trailing dot
int randomPartLength = 4; // 3 bytes
if (resource != null && resource.length() > fixedPartLength + randomPartLength) {
if (validBase64(resource.substring(fixedPartLength,fixedPartLength + randomPartLength))) {
account.setResource(resource.substring(0,fixedPartLength + randomPartLength));
}
}
}
private static boolean validBase64(String input) {
try {
return Base64.decode(input, Base64.URL_SAFE).length == 3;
} catch (Throwable throwable) {
return false;
}
}
private String nextRandomId() {
return nextRandomId(false);
}

3
src/main/java/eu/siacs/conversations/xmpp/jingle/JingleCandidate.java
View file

@ -4,6 +4,7 @@ import java.util.ArrayList;
import java.util.List;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.InvalidJid;
import rocks.xmpp.addr.Jid;
public class JingleCandidate {
@ -108,7 +109,7 @@ public class JingleCandidate {
JingleCandidate parsedCandidate = new JingleCandidate(
candidate.getAttribute("cid"), false);
parsedCandidate.setHost(candidate.getAttribute("host"));
parsedCandidate.setJid(candidate.getAttributeAsJid("jid"));
parsedCandidate.setJid(InvalidJid.getNullForInvalid(candidate.getAttributeAsJid("jid")));
parsedCandidate.setType(candidate.getAttribute("type"));
parsedCandidate.setPriority(Integer.parseInt(candidate
.getAttribute("priority")));

6
src/main/java/eu/siacs/conversations/xmpp/stanzas/AbstractAcknowledgeableStanza.java
View file

@ -1,6 +1,8 @@
package eu.siacs.conversations.xmpp.stanzas;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.InvalidJid;
import rocks.xmpp.addr.Jid;
abstract public class AbstractAcknowledgeableStanza extends AbstractStanza {
@ -28,4 +30,8 @@ abstract public class AbstractAcknowledgeableStanza extends AbstractStanza {
}
return null;
}
public boolean valid() {
return InvalidJid.isValid(getFrom()) && InvalidJid.isValid(getTo());
}
}

21
src/main/java/eu/siacs/conversations/xmpp/stanzas/AbstractStanza.java
View file

@ -31,20 +31,23 @@ public class AbstractStanza extends Element {
}
public boolean fromServer(final Account account) {
return getFrom() == null
|| getFrom().equals(Jid.of(account.getServer()))
|| getFrom().equals(account.getJid().asBareJid())
|| getFrom().equals(account.getJid());
final Jid from = getFrom();
return from == null
|| from.equals(Jid.of(account.getServer()))
|| from.equals(account.getJid().asBareJid())
|| from.equals(account.getJid());
}
public boolean toServer(final Account account) {
return getTo() == null
|| getTo().equals(Jid.of(account.getServer()))
|| getTo().equals(account.getJid().asBareJid())
|| getTo().equals(account.getJid());
final Jid to = getTo();
return to == null
|| to.equals(Jid.of(account.getServer()))
|| to.equals(account.getJid().asBareJid())
|| to.equals(account.getJid());
}
public boolean fromAccount(final Account account) {
return getFrom() != null && getFrom().asBareJid().equals(account.getJid().asBareJid());
final Jid from = getFrom();
return from != null && from.asBareJid().equals(account.getJid().asBareJid());
}
}

6
src/main/java/eu/siacs/conversations/xmpp/stanzas/IqPacket.java
View file

@ -66,4 +66,10 @@ public class IqPacket extends AbstractAcknowledgeableStanza {
return packet;
}
@Override
public boolean valid() {
String id = getId();
return id != null && super.valid();
}
}