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/*
* Copyright (c) 2010-2014 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
/*
* Copyright (c) 2015 Tarun Gupta.
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
package com.isode.stroke.avatars;
import java.util.Map;
import java.util.HashMap;
import com.isode.stroke.avatars.AvatarProvider;
import com.isode.stroke.jid.JID;
import com.isode.stroke.elements.VCard;
import com.isode.stroke.elements.Presence;
import com.isode.stroke.elements.ErrorPayload;
import com.isode.stroke.elements.VCardUpdate;
import com.isode.stroke.client.StanzaChannel;
import com.isode.stroke.vcards.GetVCardRequest;
import com.isode.stroke.crypto.CryptoProvider;
import com.isode.stroke.stringcodecs.Hexify;
import com.isode.stroke.avatars.AvatarStorage;
import com.isode.stroke.muc.MUCRegistry;
import com.isode.stroke.vcards.VCardManager;
import com.isode.stroke.signals.Slot2;
import com.isode.stroke.signals.Slot1;
import java.util.logging.Logger;
import com.isode.stroke.signals.SignalConnection;
public class VCardUpdateAvatarManager implements AvatarProvider {
private VCardManager vcardManager_;
private AvatarStorage avatarStorage_;
private CryptoProvider crypto_;
private MUCRegistry mucRegistry_;
private Map<JID, String> avatarHashes_ = new HashMap<JID, String>();
private SignalConnection onPresenceReceivedConnection;
private SignalConnection onAvailableChangedConnection;
private SignalConnection onVCardChangedConnection;
private Logger logger_ = Logger.getLogger(this.getClass().getName());
public VCardUpdateAvatarManager(VCardManager vcardManager, StanzaChannel stanzaChannel, AvatarStorage avatarStorage, CryptoProvider crypto) {
this(vcardManager, stanzaChannel, avatarStorage, crypto, null);
}
public VCardUpdateAvatarManager(VCardManager vcardManager, StanzaChannel stanzaChannel, AvatarStorage avatarStorage, CryptoProvider crypto, MUCRegistry mucRegistry) {
this.vcardManager_ = vcardManager;
this.avatarStorage_ = avatarStorage;
this.crypto_ = crypto;
this.mucRegistry_ = mucRegistry;
onPresenceReceivedConnection = stanzaChannel.onPresenceReceived.connect(new Slot1<Presence>() {
public void call(Presence p1) {
handlePresenceReceived(p1);
}
});
onAvailableChangedConnection = stanzaChannel.onAvailableChanged.connect(new Slot1<Boolean>() {
public void call(Boolean b) {
handleStanzaChannelAvailableChanged(b);
}
});
onVCardChangedConnection = vcardManager_.onVCardChanged.connect(new Slot2<JID, VCard>() {
public void call(JID p1, VCard vcard) {
handleVCardChanged(p1, vcard);
}
});
}
public String getAvatarHash(JID jid) {
if(avatarHashes_.containsKey(jid)) {
return avatarHashes_.get(jid);
} else {
return null;
}
}
private void handlePresenceReceived(Presence presence) {
VCardUpdate update = presence.getPayload(new VCardUpdate());
if (update == null || presence.getPayload(new ErrorPayload()) != null) {
return;
}
JID from = getAvatarJID(presence.getFrom());
if (update.getPhotoHash().equals(getAvatarHash(from))) {
return;
}
logger_.fine("Updated hash: " + from + "-> " + update.getPhotoHash() + "\n");
if (avatarStorage_.hasAvatar(update.getPhotoHash())) {
setAvatarHash(from, update.getPhotoHash());
}
else {
vcardManager_.requestVCard(from);
}
}
private void handleStanzaChannelAvailableChanged(boolean available) {
if (available) {
Map<JID, String> oldAvatarHashes = new HashMap<JID, String>();
oldAvatarHashes.putAll(avatarHashes_);
avatarHashes_.clear();
for (Map.Entry<JID, String> entry : oldAvatarHashes.entrySet()) {
onAvatarChanged.emit(entry.getKey());
}
}
}
private void handleVCardChanged(JID from, VCard vCard) {
if (vCard == null) {
logger_.fine("Missing element: " + from + ": null vcard payload\n");
return;
}
if (vCard.getPhoto().isEmpty()) {
setAvatarHash(from, "");
}
else {
String hash = Hexify.hexify(crypto_.getSHA1Hash(vCard.getPhoto()));
if (!avatarStorage_.hasAvatar(hash)) {
avatarStorage_.addAvatar(hash, vCard.getPhoto());
}
setAvatarHash(from, hash);
}
}
private void setAvatarHash(JID from, String hash) {
logger_.fine("Updating hash: " + from + " -> " + hash + "\n");
avatarHashes_.put(from, hash);
onAvatarChanged.emit(from);
}
private JID getAvatarJID(JID jid) {
JID bareFrom = jid.toBare();
return (mucRegistry_ != null && mucRegistry_.isMUC(bareFrom)) ? jid : bareFrom;
}
}
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Swift