1package eu.siacs.conversations.services;
  2
  3import android.content.res.Resources;
  4import android.graphics.Bitmap;
  5import android.graphics.BitmapFactory;
  6import android.graphics.Canvas;
  7import android.graphics.Paint;
  8import android.graphics.PorterDuff;
  9import android.graphics.PorterDuffXfermode;
 10import android.graphics.Rect;
 11import android.graphics.Typeface;
 12import android.net.Uri;
 13import android.support.annotation.Nullable;
 14import android.util.DisplayMetrics;
 15import android.util.Log;
 16import android.util.LruCache;
 17
 18import java.util.ArrayList;
 19import java.util.HashMap;
 20import java.util.HashSet;
 21import java.util.List;
 22import java.util.Locale;
 23import java.util.Set;
 24
 25import eu.siacs.conversations.Config;
 26import eu.siacs.conversations.R;
 27import eu.siacs.conversations.entities.Account;
 28import eu.siacs.conversations.entities.Bookmark;
 29import eu.siacs.conversations.entities.Contact;
 30import eu.siacs.conversations.entities.Conversation;
 31import eu.siacs.conversations.entities.Conversational;
 32import eu.siacs.conversations.entities.ListItem;
 33import eu.siacs.conversations.entities.Message;
 34import eu.siacs.conversations.entities.MucOptions;
 35import eu.siacs.conversations.utils.UIHelper;
 36import eu.siacs.conversations.xmpp.OnAdvancedStreamFeaturesLoaded;
 37import eu.siacs.conversations.xmpp.XmppConnection;
 38import rocks.xmpp.addr.Jid;
 39
 40public class AvatarService implements OnAdvancedStreamFeaturesLoaded {
 41
 42	private static final int FG_COLOR = 0xFFFAFAFA;
 43	private static final int TRANSPARENT = 0x00000000;
 44	private static final int PLACEHOLDER_COLOR = 0xFF202020;
 45
 46	private static final String PREFIX_CONTACT = "contact";
 47	private static final String PREFIX_CONVERSATION = "conversation";
 48	private static final String PREFIX_ACCOUNT = "account";
 49	private static final String PREFIX_GENERIC = "generic";
 50
 51	final private ArrayList<Integer> sizes = new ArrayList<>();
 52	final private HashMap<String, Set<String>> conversationDependentKeys = new HashMap<>();
 53
 54	protected XmppConnectionService mXmppConnectionService = null;
 55
 56	AvatarService(XmppConnectionService service) {
 57		this.mXmppConnectionService = service;
 58	}
 59
 60	private Bitmap get(final Contact contact, final int size, boolean cachedOnly) {
 61		if (contact.isSelf()) {
 62			return get(contact.getAccount(), size, cachedOnly);
 63		}
 64		final String KEY = key(contact, size);
 65		Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
 66		if (avatar != null || cachedOnly) {
 67			return avatar;
 68		}
 69		if (contact.getProfilePhoto() != null) {
 70			avatar = mXmppConnectionService.getFileBackend().cropCenterSquare(Uri.parse(contact.getProfilePhoto()), size);
 71		}
 72		if (avatar == null && contact.getAvatar() != null) {
 73			avatar = mXmppConnectionService.getFileBackend().getAvatar(contact.getAvatar(), size);
 74		}
 75		if (avatar == null) {
 76			avatar = get(contact.getDisplayName(), contact.getJid().asBareJid().toString(), size, cachedOnly);
 77		}
 78		this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
 79		return avatar;
 80	}
 81
 82	public Bitmap getRoundedShortcut(final Contact contact) {
 83		return getRoundedShortcut(contact, false);
 84	}
 85
 86	public Bitmap getRoundedShortcutWithIcon(final Contact contact) {
 87		return getRoundedShortcut(contact, true);
 88	}
 89
 90	private Bitmap getRoundedShortcut(final Contact contact, boolean withIcon) {
 91		DisplayMetrics metrics = mXmppConnectionService.getResources().getDisplayMetrics();
 92		int size = Math.round(metrics.density * 48);
 93		Bitmap bitmap = get(contact, size);
 94		Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
 95		Canvas canvas = new Canvas(output);
 96		final Paint paint = new Paint();
 97
 98		drawAvatar(bitmap, canvas, paint);
 99		if (withIcon) {
100			drawIcon(canvas, paint);
101		}
102		return output;
103	}
104
105	private void drawAvatar(Bitmap bitmap, Canvas canvas, Paint paint) {
106		final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
107		paint.setAntiAlias(true);
108		canvas.drawARGB(0, 0, 0, 0);
109		canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
110		paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
111		canvas.drawBitmap(bitmap, rect, rect, paint);
112	}
113
114	private void drawIcon(Canvas canvas, Paint paint) {
115		BitmapFactory.Options opts = new BitmapFactory.Options();
116		opts.inSampleSize = 2;
117		Resources resources = mXmppConnectionService.getResources();
118		Bitmap icon = BitmapFactory.decodeResource(resources, R.mipmap.new_launcher_round, opts);
119		paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OVER));
120
121		int iconSize = Math.round(canvas.getHeight() / 2.6f);
122
123		int left = canvas.getWidth() - iconSize;
124		int top = canvas.getHeight() - iconSize;
125		final Rect rect = new Rect(left, top, left + iconSize, top + iconSize);
126		canvas.drawBitmap(icon, null, rect, paint);
127	}
128
129	public Bitmap get(final MucOptions.User user, final int size, boolean cachedOnly) {
130		Contact c = user.getContact();
131		if (c != null && (c.getProfilePhoto() != null || c.getAvatar() != null || user.getAvatar() == null)) {
132			return get(c, size, cachedOnly);
133		} else {
134			return getImpl(user, size, cachedOnly);
135		}
136	}
137
138	private Bitmap getImpl(final MucOptions.User user, final int size, boolean cachedOnly) {
139		final String KEY = key(user, size);
140		Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
141		if (avatar != null || cachedOnly) {
142			return avatar;
143		}
144		if (user.getAvatar() != null) {
145			avatar = mXmppConnectionService.getFileBackend().getAvatar(user.getAvatar(), size);
146		}
147		if (avatar == null) {
148			Contact contact = user.getContact();
149			if (contact != null) {
150				avatar = get(contact, size, cachedOnly);
151			} else {
152				String seed = user.getRealJid() != null ? user.getRealJid().asBareJid().toString() : null;
153				avatar = get(user.getName(), seed, size, cachedOnly);
154			}
155		}
156		this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
157		return avatar;
158	}
159
160	public void clear(Contact contact) {
161		synchronized (this.sizes) {
162			for (Integer size : sizes) {
163				this.mXmppConnectionService.getBitmapCache().remove(
164						key(contact, size));
165			}
166		}
167		for (Conversation conversation : mXmppConnectionService.findAllConferencesWith(contact)) {
168			clear(conversation);
169		}
170	}
171
172	private String key(Contact contact, int size) {
173		synchronized (this.sizes) {
174			if (!this.sizes.contains(size)) {
175				this.sizes.add(size);
176			}
177		}
178		return PREFIX_CONTACT +
179				'\0' +
180				contact.getAccount().getJid().asBareJid() +
181				'\0' +
182				emptyOnNull(contact.getJid()) +
183				'\0' +
184				size;
185	}
186
187	private String key(MucOptions.User user, int size) {
188		synchronized (this.sizes) {
189			if (!this.sizes.contains(size)) {
190				this.sizes.add(size);
191			}
192		}
193		return PREFIX_CONTACT +
194				'\0' +
195				user.getAccount().getJid().asBareJid() +
196				'\0' +
197				emptyOnNull(user.getFullJid()) +
198				'\0' +
199				emptyOnNull(user.getRealJid()) +
200				'\0' +
201				size;
202	}
203
204	public Bitmap get(ListItem item, int size) {
205		return get(item, size, false);
206	}
207
208	public Bitmap get(ListItem item, int size, boolean cachedOnly) {
209		if (item instanceof Contact) {
210			return get((Contact) item, size, cachedOnly);
211		} else if (item instanceof Bookmark) {
212			Bookmark bookmark = (Bookmark) item;
213			if (bookmark.getConversation() != null) {
214				return get(bookmark.getConversation(), size, cachedOnly);
215			} else {
216				Jid jid = bookmark.getJid();
217				Account account = bookmark.getAccount();
218				Contact contact = jid == null ? null : account.getRoster().getContact(jid);
219				if (contact != null && contact.getAvatar() != null) {
220					return get(contact, size, cachedOnly);
221				}
222				String seed = jid != null ? jid.asBareJid().toString() : null;
223				return get(bookmark.getDisplayName(), seed, size, cachedOnly);
224			}
225		} else {
226			String seed = item.getJid() != null ? item.getJid().asBareJid().toString() : null;
227			return get(item.getDisplayName(), seed, size, cachedOnly);
228		}
229	}
230
231	public Bitmap get(Conversation conversation, int size) {
232		return get(conversation, size, false);
233	}
234
235	public Bitmap get(Conversation conversation, int size, boolean cachedOnly) {
236		if (conversation.getMode() == Conversation.MODE_SINGLE) {
237			return get(conversation.getContact(), size, cachedOnly);
238		} else {
239			return get(conversation.getMucOptions(), size, cachedOnly);
240		}
241	}
242
243	public void clear(Conversation conversation) {
244		if (conversation.getMode() == Conversation.MODE_SINGLE) {
245			clear(conversation.getContact());
246		} else {
247			clear(conversation.getMucOptions());
248			synchronized (this.conversationDependentKeys) {
249				Set<String> keys = this.conversationDependentKeys.get(conversation.getUuid());
250				if (keys == null) {
251					return;
252				}
253				LruCache<String, Bitmap> cache = this.mXmppConnectionService.getBitmapCache();
254				for (String key : keys) {
255					cache.remove(key);
256				}
257				keys.clear();
258			}
259		}
260	}
261
262	private Bitmap get(MucOptions mucOptions, int size, boolean cachedOnly) {
263		final String KEY = key(mucOptions, size);
264		Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
265		if (bitmap != null || cachedOnly) {
266			return bitmap;
267		}
268
269		bitmap = mXmppConnectionService.getFileBackend().getAvatar(mucOptions.getAvatar(), size);
270
271		if (bitmap == null) {
272			final List<MucOptions.User> users = mucOptions.getUsersRelevantForNameAndAvatar();
273			if (users.size() == 0) {
274				Conversation c = mucOptions.getConversation();
275				bitmap = getImpl(c.getName().toString(), c.getJid().asBareJid().toString(), size);
276			} else {
277				bitmap = getImpl(users, size);
278			}
279		}
280
281		this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
282
283		return bitmap;
284	}
285
286	private Bitmap get(List<MucOptions.User> users, int size, boolean cachedOnly) {
287		final String KEY = key(users, size);
288		Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
289		if (bitmap != null || cachedOnly) {
290			return bitmap;
291		}
292		bitmap = getImpl(users, size);
293		this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
294		return bitmap;
295	}
296
297	private Bitmap getImpl(List<MucOptions.User> users, int size) {
298		int count = users.size();
299		Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
300		Canvas canvas = new Canvas(bitmap);
301		bitmap.eraseColor(TRANSPARENT);
302		if (count == 0) {
303			throw new AssertionError("Unable to draw tiles for 0 users");
304		} else if (count == 1) {
305			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
306			drawTile(canvas, users.get(0).getAccount(), size / 2 + 1, 0, size, size);
307		} else if (count == 2) {
308			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
309			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
310		} else if (count == 3) {
311			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
312			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
313			drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
314					size);
315		} else if (count == 4) {
316			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
317			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
318			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
319			drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
320					size);
321		} else {
322			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
323			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
324			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
325			drawTile(canvas, "\u2026", PLACEHOLDER_COLOR, size / 2 + 1, size / 2 + 1,
326					size, size);
327		}
328		return bitmap;
329	}
330
331	public void clear(final MucOptions options) {
332		if (options == null) {
333			return;
334		}
335		synchronized (this.sizes) {
336			for (Integer size : sizes) {
337				this.mXmppConnectionService.getBitmapCache().remove(key(options, size));
338			}
339		}
340	}
341
342	private String key(final MucOptions options, int size) {
343		synchronized (this.sizes) {
344			if (!this.sizes.contains(size)) {
345				this.sizes.add(size);
346			}
347		}
348		return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
349				+ "_" + String.valueOf(size);
350	}
351
352	private String key(List<MucOptions.User> users, int size) {
353		final Conversation conversation = users.get(0).getConversation();
354		StringBuilder builder = new StringBuilder("TILE_");
355		builder.append(conversation.getUuid());
356
357		for (MucOptions.User user : users) {
358			builder.append("\0");
359			builder.append(emptyOnNull(user.getRealJid()));
360			builder.append("\0");
361			builder.append(emptyOnNull(user.getFullJid()));
362		}
363		builder.append('\0');
364		builder.append(size);
365		final String key = builder.toString();
366		synchronized (this.conversationDependentKeys) {
367			Set<String> keys;
368			if (this.conversationDependentKeys.containsKey(conversation.getUuid())) {
369				keys = this.conversationDependentKeys.get(conversation.getUuid());
370			} else {
371				keys = new HashSet<>();
372				this.conversationDependentKeys.put(conversation.getUuid(), keys);
373			}
374			keys.add(key);
375		}
376		return key;
377	}
378
379	public Bitmap get(Account account, int size) {
380		return get(account, size, false);
381	}
382
383	public Bitmap get(Account account, int size, boolean cachedOnly) {
384		final String KEY = key(account, size);
385		Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
386		if (avatar != null || cachedOnly) {
387			return avatar;
388		}
389		avatar = mXmppConnectionService.getFileBackend().getAvatar(account.getAvatar(), size);
390		if (avatar == null) {
391			avatar = get(account.getJid().asBareJid().toString(), null, size, false);
392		}
393		mXmppConnectionService.getBitmapCache().put(KEY, avatar);
394		return avatar;
395	}
396
397	public Bitmap get(Message message, int size, boolean cachedOnly) {
398		final Conversational conversation = message.getConversation();
399		if (message.getType() == Message.TYPE_STATUS && message.getCounterparts() != null && message.getCounterparts().size() > 1) {
400			return get(message.getCounterparts(), size, cachedOnly);
401		} else if (message.getStatus() == Message.STATUS_RECEIVED) {
402			Contact c = message.getContact();
403			if (c != null && (c.getProfilePhoto() != null || c.getAvatar() != null)) {
404				return get(c, size, cachedOnly);
405			} else if (conversation instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
406				final Jid trueCounterpart = message.getTrueCounterpart();
407				final MucOptions mucOptions = ((Conversation) conversation).getMucOptions();
408				MucOptions.User user;
409				if (trueCounterpart != null) {
410					user = mucOptions.findUserByRealJid(trueCounterpart);
411				} else {
412					user = mucOptions.findUserByFullJid(message.getCounterpart());
413				}
414				if (user != null) {
415					return getImpl(user, size, cachedOnly);
416				}
417			} else if (c != null) {
418				return get(c, size, cachedOnly);
419			}
420			Jid tcp = message.getTrueCounterpart();
421			String seed = tcp != null ? tcp.asBareJid().toString() : null;
422			return get(UIHelper.getMessageDisplayName(message), seed, size, cachedOnly);
423		} else {
424			return get(conversation.getAccount(), size, cachedOnly);
425		}
426	}
427
428	public void clear(Account account) {
429		synchronized (this.sizes) {
430			for (Integer size : sizes) {
431				this.mXmppConnectionService.getBitmapCache().remove(key(account, size));
432			}
433		}
434	}
435
436	public void clear(MucOptions.User user) {
437		synchronized (this.sizes) {
438			for (Integer size : sizes) {
439				this.mXmppConnectionService.getBitmapCache().remove(key(user, size));
440			}
441		}
442	}
443
444	private String key(Account account, int size) {
445		synchronized (this.sizes) {
446			if (!this.sizes.contains(size)) {
447				this.sizes.add(size);
448			}
449		}
450		return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
451				+ String.valueOf(size);
452	}
453
454	/*public Bitmap get(String name, int size) {
455		return get(name,null, size,false);
456	}*/
457
458	public Bitmap get(final String name, String seed, final int size, boolean cachedOnly) {
459		final String KEY = key(seed == null ? name : seed, size);
460		Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
461		if (bitmap != null || cachedOnly) {
462			return bitmap;
463		}
464		bitmap = getImpl(name, seed, size);
465		mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
466		return bitmap;
467	}
468
469	private Bitmap getImpl(final String name, final String seed, final int size) {
470		Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
471		Canvas canvas = new Canvas(bitmap);
472		final String trimmedName = name == null ? "" : name.trim();
473		drawTile(canvas, trimmedName, seed, 0, 0, size, size);
474		return bitmap;
475	}
476
477	private String key(String name, int size) {
478		synchronized (this.sizes) {
479			if (!this.sizes.contains(size)) {
480				this.sizes.add(size);
481			}
482		}
483		return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
484	}
485
486	private boolean drawTile(Canvas canvas, String letter, int tileColor, int left, int top, int right, int bottom) {
487		letter = letter.toUpperCase(Locale.getDefault());
488		Paint tilePaint = new Paint(), textPaint = new Paint();
489		tilePaint.setColor(tileColor);
490		textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
491		textPaint.setColor(FG_COLOR);
492		textPaint.setTypeface(Typeface.create("sans-serif-light",
493				Typeface.NORMAL));
494		textPaint.setTextSize((float) ((right - left) * 0.8));
495		Rect rect = new Rect();
496
497		canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
498		textPaint.getTextBounds(letter, 0, 1, rect);
499		float width = textPaint.measureText(letter);
500		canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
501				/ 2 + rect.height() / 2, textPaint);
502		return true;
503	}
504
505	private boolean drawTile(Canvas canvas, MucOptions.User user, int left, int top, int right, int bottom) {
506		Contact contact = user.getContact();
507		if (contact != null) {
508			Uri uri = null;
509			if (contact.getProfilePhoto() != null) {
510				uri = Uri.parse(contact.getProfilePhoto());
511			} else if (contact.getAvatar() != null) {
512				uri = mXmppConnectionService.getFileBackend().getAvatarUri(
513						contact.getAvatar());
514			}
515			if (drawTile(canvas, uri, left, top, right, bottom)) {
516				return true;
517			}
518		} else if (user.getAvatar() != null) {
519			Uri uri = mXmppConnectionService.getFileBackend().getAvatarUri(user.getAvatar());
520			if (drawTile(canvas, uri, left, top, right, bottom)) {
521				return true;
522			}
523		}
524		if (contact != null) {
525			String seed = contact.getJid().asBareJid().toString();
526			drawTile(canvas, contact.getDisplayName(), seed, left, top, right, bottom);
527		} else {
528			String seed = user.getRealJid() == null ? null : user.getRealJid().asBareJid().toString();
529			drawTile(canvas, user.getName(), seed, left, top, right, bottom);
530		}
531		return true;
532	}
533
534	private boolean drawTile(Canvas canvas, Account account, int left, int top, int right, int bottom) {
535		String avatar = account.getAvatar();
536		if (avatar != null) {
537			Uri uri = mXmppConnectionService.getFileBackend().getAvatarUri(avatar);
538			if (uri != null) {
539				if (drawTile(canvas, uri, left, top, right, bottom)) {
540					return true;
541				}
542			}
543		}
544		String name = account.getJid().asBareJid().toString();
545		return drawTile(canvas, name, name, left, top, right, bottom);
546	}
547
548	private boolean drawTile(Canvas canvas, String name, String seed, int left, int top, int right, int bottom) {
549		if (name != null) {
550			final String letter = getFirstLetter(name);
551			final int color = UIHelper.getColorForName(seed == null ? name : seed);
552			drawTile(canvas, letter, color, left, top, right, bottom);
553			return true;
554		}
555		return false;
556	}
557
558	private static String getFirstLetter(String name) {
559		for (Character c : name.toCharArray()) {
560			if (Character.isLetterOrDigit(c)) {
561				return c.toString();
562			}
563		}
564		return "X";
565	}
566
567	private boolean drawTile(Canvas canvas, Uri uri, int left, int top, int right, int bottom) {
568		if (uri != null) {
569			Bitmap bitmap = mXmppConnectionService.getFileBackend()
570					.cropCenter(uri, bottom - top, right - left);
571			if (bitmap != null) {
572				drawTile(canvas, bitmap, left, top, right, bottom);
573				return true;
574			}
575		}
576		return false;
577	}
578
579	private boolean drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop, int dstright, int dstbottom) {
580		Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
581		canvas.drawBitmap(bm, null, dst, null);
582		return true;
583	}
584
585	@Override
586	public void onAdvancedStreamFeaturesAvailable(Account account) {
587		XmppConnection.Features features = account.getXmppConnection().getFeatures();
588		if (features.pep() && !features.pepPersistent()) {
589			Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": has pep but is not persistent");
590			if (account.getAvatar() != null) {
591				mXmppConnectionService.republishAvatarIfNeeded(account);
592			}
593		}
594	}
595
596	private static String emptyOnNull(@Nullable Jid value) {
597		return value == null ? "" : value.toString();
598	}
599}