diff options
author | Andreas Straub <andy@strb.org> | 2015-07-20 15:13:14 +0200 |
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committer | Andreas Straub <andy@strb.org> | 2015-07-20 15:13:14 +0200 |
commit | aaa8fe8978ac0513a013a9c77efef663f32eda47 (patch) | |
tree | 16cc60f67a4fbded2eeeb7ba1001ebb1b1a004a5 /src/main/java/eu/siacs/conversations/parser | |
parent | 9c91b9036aa57c610c26b4cdf52ee295eaa0dc95 (diff) | |
parent | 19a0ae42d667644ee3400c92c53ad0ad093c52fe (diff) |
Merge branch 'CryptoNextBeta' into development
* CryptoNextBeta: (60 commits)
Lock TrustKeys if no trusted keys are available
Optimize imports
Use MD style for key trust toggle switch
Fix set/remove OnUpdateBlocklistListener
Fix axolotl database migration
Remove device list from EditAccount
Add clear devices to overflow menu in EditAccount
Ask for key trust when sending messages
Encrypt files for HTTP upload in encrypted chats
Refactor trust key ui and show in account details
Send correct body for HTTP files
Handle file transmission properly in axolotl
Remove unneccessary code
Fix trust status for outgoing messages
Don't merge messages with different trust statuses
Fix copying of axolotl keys to clipboard
Add refresh icon to v21 theme
Disable Axolotl option if not usable
Show trust status of messages' originating session
Add key trust toggle to ContactDetailsActivity
...
Diffstat (limited to 'src/main/java/eu/siacs/conversations/parser')
3 files changed, 199 insertions, 6 deletions
diff --git a/src/main/java/eu/siacs/conversations/parser/AbstractParser.java b/src/main/java/eu/siacs/conversations/parser/AbstractParser.java index 24e93db1..18331796 100644 --- a/src/main/java/eu/siacs/conversations/parser/AbstractParser.java +++ b/src/main/java/eu/siacs/conversations/parser/AbstractParser.java @@ -11,7 +11,6 @@ import eu.siacs.conversations.entities.Contact; import eu.siacs.conversations.services.XmppConnectionService; import eu.siacs.conversations.xml.Element; import eu.siacs.conversations.xmpp.jid.Jid; -import eu.siacs.conversations.xmpp.stanzas.MessagePacket; public abstract class AbstractParser { diff --git a/src/main/java/eu/siacs/conversations/parser/IqParser.java b/src/main/java/eu/siacs/conversations/parser/IqParser.java index 6039d395..e74cb65c 100644 --- a/src/main/java/eu/siacs/conversations/parser/IqParser.java +++ b/src/main/java/eu/siacs/conversations/parser/IqParser.java @@ -1,11 +1,25 @@ package eu.siacs.conversations.parser; +import android.support.annotation.NonNull; +import android.util.Base64; import android.util.Log; +import org.whispersystems.libaxolotl.IdentityKey; +import org.whispersystems.libaxolotl.InvalidKeyException; +import org.whispersystems.libaxolotl.ecc.Curve; +import org.whispersystems.libaxolotl.ecc.ECPublicKey; +import org.whispersystems.libaxolotl.state.PreKeyBundle; + import java.util.ArrayList; import java.util.Collection; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; import eu.siacs.conversations.Config; +import eu.siacs.conversations.crypto.axolotl.AxolotlService; import eu.siacs.conversations.entities.Account; import eu.siacs.conversations.entities.Contact; import eu.siacs.conversations.services.XmppConnectionService; @@ -71,6 +85,155 @@ public class IqParser extends AbstractParser implements OnIqPacketReceived { return super.avatarData(items); } + public Element getItem(final IqPacket packet) { + final Element pubsub = packet.findChild("pubsub", + "http://jabber.org/protocol/pubsub"); + if (pubsub == null) { + return null; + } + final Element items = pubsub.findChild("items"); + if (items == null) { + return null; + } + return items.findChild("item"); + } + + @NonNull + public Set<Integer> deviceIds(final Element item) { + Set<Integer> deviceIds = new HashSet<>(); + if (item != null) { + final Element list = item.findChild("list"); + if (list != null) { + for (Element device : list.getChildren()) { + if (!device.getName().equals("device")) { + continue; + } + try { + Integer id = Integer.valueOf(device.getAttribute("id")); + deviceIds.add(id); + } catch (NumberFormatException e) { + Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Encountered nvalid <device> node in PEP:" + device.toString() + + ", skipping..."); + continue; + } + } + } + } + return deviceIds; + } + + public Integer signedPreKeyId(final Element bundle) { + final Element signedPreKeyPublic = bundle.findChild("signedPreKeyPublic"); + if(signedPreKeyPublic == null) { + return null; + } + return Integer.valueOf(signedPreKeyPublic.getAttribute("signedPreKeyId")); + } + + public ECPublicKey signedPreKeyPublic(final Element bundle) { + ECPublicKey publicKey = null; + final Element signedPreKeyPublic = bundle.findChild("signedPreKeyPublic"); + if(signedPreKeyPublic == null) { + return null; + } + try { + publicKey = Curve.decodePoint(Base64.decode(signedPreKeyPublic.getContent(),Base64.DEFAULT), 0); + } catch (InvalidKeyException e) { + Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Invalid signedPreKeyPublic in PEP: " + e.getMessage()); + } + return publicKey; + } + + public byte[] signedPreKeySignature(final Element bundle) { + final Element signedPreKeySignature = bundle.findChild("signedPreKeySignature"); + if(signedPreKeySignature == null) { + return null; + } + return Base64.decode(signedPreKeySignature.getContent(),Base64.DEFAULT); + } + + public IdentityKey identityKey(final Element bundle) { + IdentityKey identityKey = null; + final Element identityKeyElement = bundle.findChild("identityKey"); + if(identityKeyElement == null) { + return null; + } + try { + identityKey = new IdentityKey(Base64.decode(identityKeyElement.getContent(), Base64.DEFAULT), 0); + } catch (InvalidKeyException e) { + Log.e(Config.LOGTAG,AxolotlService.LOGPREFIX+" : "+"Invalid identityKey in PEP: "+e.getMessage()); + } + return identityKey; + } + + public Map<Integer, ECPublicKey> preKeyPublics(final IqPacket packet) { + Map<Integer, ECPublicKey> preKeyRecords = new HashMap<>(); + Element item = getItem(packet); + if (item == null) { + Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Couldn't find <item> in bundle IQ packet: " + packet); + return null; + } + final Element bundleElement = item.findChild("bundle"); + if(bundleElement == null) { + return null; + } + final Element prekeysElement = bundleElement.findChild("prekeys"); + if(prekeysElement == null) { + Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Couldn't find <prekeys> in bundle IQ packet: " + packet); + return null; + } + for(Element preKeyPublicElement : prekeysElement.getChildren()) { + if(!preKeyPublicElement.getName().equals("preKeyPublic")){ + Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Encountered unexpected tag in prekeys list: " + preKeyPublicElement); + continue; + } + Integer preKeyId = Integer.valueOf(preKeyPublicElement.getAttribute("preKeyId")); + try { + ECPublicKey preKeyPublic = Curve.decodePoint(Base64.decode(preKeyPublicElement.getContent(), Base64.DEFAULT), 0); + preKeyRecords.put(preKeyId, preKeyPublic); + } catch (InvalidKeyException e) { + Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Invalid preKeyPublic (ID="+preKeyId+") in PEP: "+ e.getMessage()+", skipping..."); + continue; + } + } + return preKeyRecords; + } + + public PreKeyBundle bundle(final IqPacket bundle) { + Element bundleItem = getItem(bundle); + if(bundleItem == null) { + return null; + } + final Element bundleElement = bundleItem.findChild("bundle"); + if(bundleElement == null) { + return null; + } + ECPublicKey signedPreKeyPublic = signedPreKeyPublic(bundleElement); + Integer signedPreKeyId = signedPreKeyId(bundleElement); + byte[] signedPreKeySignature = signedPreKeySignature(bundleElement); + IdentityKey identityKey = identityKey(bundleElement); + if(signedPreKeyPublic == null || identityKey == null) { + return null; + } + + return new PreKeyBundle(0, 0, 0, null, + signedPreKeyId, signedPreKeyPublic, signedPreKeySignature, identityKey); + } + + public List<PreKeyBundle> preKeys(final IqPacket preKeys) { + List<PreKeyBundle> bundles = new ArrayList<>(); + Map<Integer, ECPublicKey> preKeyPublics = preKeyPublics(preKeys); + if ( preKeyPublics != null) { + for (Integer preKeyId : preKeyPublics.keySet()) { + ECPublicKey preKeyPublic = preKeyPublics.get(preKeyId); + bundles.add(new PreKeyBundle(0, 0, preKeyId, preKeyPublic, + 0, null, null, null)); + } + } + + return bundles; + } + @Override public void onIqPacketReceived(final Account account, final IqPacket packet) { if (packet.hasChild("query", Xmlns.ROSTER) && packet.fromServer(account)) { diff --git a/src/main/java/eu/siacs/conversations/parser/MessageParser.java b/src/main/java/eu/siacs/conversations/parser/MessageParser.java index d46ff195..38e0f98a 100644 --- a/src/main/java/eu/siacs/conversations/parser/MessageParser.java +++ b/src/main/java/eu/siacs/conversations/parser/MessageParser.java @@ -6,7 +6,11 @@ import android.util.Pair; import net.java.otr4j.session.Session; import net.java.otr4j.session.SessionStatus; +import java.util.Set; + import eu.siacs.conversations.Config; +import eu.siacs.conversations.crypto.axolotl.AxolotlService; +import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage; import eu.siacs.conversations.entities.Account; import eu.siacs.conversations.entities.Contact; import eu.siacs.conversations.entities.Conversation; @@ -94,6 +98,20 @@ public class MessageParser extends AbstractParser implements } } + private Message parseAxolotlChat(Element axolotlMessage, Jid from, String id, Conversation conversation, int status) { + Message finishedMessage = null; + AxolotlService service = conversation.getAccount().getAxolotlService(); + XmppAxolotlMessage xmppAxolotlMessage = new XmppAxolotlMessage(from.toBareJid(), axolotlMessage); + XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = service.processReceiving(xmppAxolotlMessage); + if(plaintextMessage != null) { + finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status); + finishedMessage.setAxolotlFingerprint(plaintextMessage.getFingerprint()); + Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount())+" Received Message with session fingerprint: "+plaintextMessage.getFingerprint()); + } + + return finishedMessage; + } + private class Invite { Jid jid; String password; @@ -170,6 +188,13 @@ public class MessageParser extends AbstractParser implements mXmppConnectionService.updateConversationUi(); mXmppConnectionService.updateAccountUi(); } + } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) { + Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account)+"Received PEP device list update from "+ from + ", processing..."); + Element item = items.findChild("item"); + Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item); + AxolotlService axolotlService = account.getAxolotlService(); + axolotlService.registerDevices(from, deviceIds); + mXmppConnectionService.updateAccountUi(); } } @@ -232,8 +257,9 @@ public class MessageParser extends AbstractParser implements timestamp = AbstractParser.getTimestamp(packet, System.currentTimeMillis()); } final String body = packet.getBody(); - final String encrypted = packet.findChildContent("x", "jabber:x:encrypted"); final Element mucUserElement = packet.findChild("x","http://jabber.org/protocol/muc#user"); + final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted"); + final Element axolotlEncrypted = packet.findChild("axolotl_message", AxolotlService.PEP_PREFIX); int status; final Jid counterpart; final Jid to = packet.getTo(); @@ -261,11 +287,11 @@ public class MessageParser extends AbstractParser implements return; } - if (extractChatState(mXmppConnectionService.find(account,from), packet)) { + if (extractChatState(mXmppConnectionService.find(account, from), packet)) { mXmppConnectionService.updateConversationUi(); } - if ((body != null || encrypted != null) && !isMucStatusMessage) { + if ((body != null || pgpEncrypted != null || axolotlEncrypted != null) && !isMucStatusMessage) { Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat); if (isTypeGroupChat) { if (counterpart.getResourcepart().equals(conversation.getMucOptions().getActualNick())) { @@ -294,8 +320,13 @@ public class MessageParser extends AbstractParser implements } else { message = new Message(conversation, body, Message.ENCRYPTION_NONE, status); } - } else if (encrypted != null) { - message = new Message(conversation, encrypted, Message.ENCRYPTION_PGP, status); + } else if (pgpEncrypted != null) { + message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status); + } else if (axolotlEncrypted != null) { + message = parseAxolotlChat(axolotlEncrypted, from, remoteMsgId, conversation, status); + if (message == null) { + return; + } } else { message = new Message(conversation, body, Message.ENCRYPTION_NONE, status); } |