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	public 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.drawable.ic_launcher, 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				String seed = bookmark.getJid() != null ? bookmark.getJid().asBareJid().toString() : null;
217				return get(bookmark.getDisplayName(), seed, size, cachedOnly);
218			}
219		} else {
220			String seed = item.getJid() != null ? item.getJid().asBareJid().toString() : null;
221			return get(item.getDisplayName(), seed, size, cachedOnly);
222		}
223	}
224
225	public Bitmap get(Conversation conversation, int size) {
226		return get(conversation, size, false);
227	}
228
229	public Bitmap get(Conversation conversation, int size, boolean cachedOnly) {
230		if (conversation.getMode() == Conversation.MODE_SINGLE) {
231			return get(conversation.getContact(), size, cachedOnly);
232		} else {
233			return get(conversation.getMucOptions(), size, cachedOnly);
234		}
235	}
236
237	public void clear(Conversation conversation) {
238		if (conversation.getMode() == Conversation.MODE_SINGLE) {
239			clear(conversation.getContact());
240		} else {
241			clear(conversation.getMucOptions());
242			synchronized (this.conversationDependentKeys) {
243				Set<String> keys = this.conversationDependentKeys.get(conversation.getUuid());
244				if (keys == null) {
245					return;
246				}
247				LruCache<String, Bitmap> cache = this.mXmppConnectionService.getBitmapCache();
248				for (String key : keys) {
249					cache.remove(key);
250				}
251				keys.clear();
252			}
253		}
254	}
255
256	private Bitmap get(MucOptions mucOptions, int size, boolean cachedOnly) {
257		final String KEY = key(mucOptions, size);
258		Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
259		if (bitmap != null || cachedOnly) {
260			return bitmap;
261		}
262
263		bitmap = mXmppConnectionService.getFileBackend().getAvatar(mucOptions.getAvatar(), size);
264
265		if (bitmap == null) {
266			final List<MucOptions.User> users = mucOptions.getUsersRelevantForNameAndAvatar();
267			if (users.size() == 0) {
268				Conversation c = mucOptions.getConversation();
269				bitmap = getImpl(c.getName().toString(), c.getJid().asBareJid().toString(), size);
270			} else {
271				bitmap = getImpl(users, size);
272			}
273		}
274
275		this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
276
277		return bitmap;
278	}
279
280	private Bitmap get(List<MucOptions.User> users, int size, boolean cachedOnly) {
281		final String KEY = key(users, size);
282		Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
283		if (bitmap != null || cachedOnly) {
284			return bitmap;
285		}
286		bitmap = getImpl(users, size);
287		this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
288		return bitmap;
289	}
290
291	private Bitmap getImpl(List<MucOptions.User> users, int size) {
292		int count = users.size();
293		Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
294		Canvas canvas = new Canvas(bitmap);
295		bitmap.eraseColor(TRANSPARENT);
296		if (count == 0) {
297			throw new AssertionError("Unable to draw tiles for 0 users");
298		} else if (count == 1) {
299			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
300			drawTile(canvas, users.get(0).getAccount(), size / 2 + 1, 0, size, size);
301		} else if (count == 2) {
302			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
303			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
304		} else if (count == 3) {
305			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
306			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
307			drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
308					size);
309		} else if (count == 4) {
310			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
311			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
312			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
313			drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
314					size);
315		} else {
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, "\u2026", PLACEHOLDER_COLOR, size / 2 + 1, size / 2 + 1,
320					size, size);
321		}
322		return bitmap;
323	}
324
325	public void clear(final MucOptions options) {
326		if (options == null) {
327			return;
328		}
329		synchronized (this.sizes) {
330			for (Integer size : sizes) {
331				this.mXmppConnectionService.getBitmapCache().remove(key(options, size));
332			}
333		}
334	}
335
336	private String key(final MucOptions options, int size) {
337		synchronized (this.sizes) {
338			if (!this.sizes.contains(size)) {
339				this.sizes.add(size);
340			}
341		}
342		return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
343				+ "_" + String.valueOf(size);
344	}
345
346	private String key(List<MucOptions.User> users, int size) {
347		final Conversation conversation = users.get(0).getConversation();
348		StringBuilder builder = new StringBuilder("TILE_");
349		builder.append(conversation.getUuid());
350
351		for (MucOptions.User user : users) {
352			builder.append("\0");
353			builder.append(emptyOnNull(user.getRealJid()));
354			builder.append("\0");
355			builder.append(emptyOnNull(user.getFullJid()));
356		}
357		builder.append('\0');
358		builder.append(size);
359		final String key = builder.toString();
360		synchronized (this.conversationDependentKeys) {
361			Set<String> keys;
362			if (this.conversationDependentKeys.containsKey(conversation.getUuid())) {
363				keys = this.conversationDependentKeys.get(conversation.getUuid());
364			} else {
365				keys = new HashSet<>();
366				this.conversationDependentKeys.put(conversation.getUuid(), keys);
367			}
368			keys.add(key);
369		}
370		return key;
371	}
372
373	public Bitmap get(Account account, int size) {
374		return get(account, size, false);
375	}
376
377	public Bitmap get(Account account, int size, boolean cachedOnly) {
378		final String KEY = key(account, size);
379		Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
380		if (avatar != null || cachedOnly) {
381			return avatar;
382		}
383		avatar = mXmppConnectionService.getFileBackend().getAvatar(account.getAvatar(), size);
384		if (avatar == null) {
385			avatar = get(account.getJid().asBareJid().toString(), null, size, false);
386		}
387		mXmppConnectionService.getBitmapCache().put(KEY, avatar);
388		return avatar;
389	}
390
391	public Bitmap get(Message message, int size, boolean cachedOnly) {
392		final Conversational conversation = message.getConversation();
393		if (message.getType() == Message.TYPE_STATUS && message.getCounterparts() != null && message.getCounterparts().size() > 1) {
394			return get(message.getCounterparts(), size, cachedOnly);
395		} else if (message.getStatus() == Message.STATUS_RECEIVED) {
396			Contact c = message.getContact();
397			if (c != null && (c.getProfilePhoto() != null || c.getAvatar() != null)) {
398				return get(c, size, cachedOnly);
399			} else if (conversation instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
400				final Jid trueCounterpart = message.getTrueCounterpart();
401				final MucOptions mucOptions = ((Conversation) conversation).getMucOptions();
402				MucOptions.User user;
403				if (trueCounterpart != null) {
404					user = mucOptions.findUserByRealJid(trueCounterpart);
405				} else {
406					user = mucOptions.findUserByFullJid(message.getCounterpart());
407				}
408				if (user != null) {
409					return getImpl(user, size, cachedOnly);
410				}
411			} else if (c != null) {
412				return get(c, size, cachedOnly);
413			}
414			Jid tcp = message.getTrueCounterpart();
415			String seed = tcp != null ? tcp.asBareJid().toString() : null;
416			return get(UIHelper.getMessageDisplayName(message), seed, size, cachedOnly);
417		} else {
418			return get(conversation.getAccount(), size, cachedOnly);
419		}
420	}
421
422	public void clear(Account account) {
423		synchronized (this.sizes) {
424			for (Integer size : sizes) {
425				this.mXmppConnectionService.getBitmapCache().remove(key(account, size));
426			}
427		}
428	}
429
430	public void clear(MucOptions.User user) {
431		synchronized (this.sizes) {
432			for (Integer size : sizes) {
433				this.mXmppConnectionService.getBitmapCache().remove(key(user, size));
434			}
435		}
436	}
437
438	private String key(Account account, int size) {
439		synchronized (this.sizes) {
440			if (!this.sizes.contains(size)) {
441				this.sizes.add(size);
442			}
443		}
444		return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
445				+ String.valueOf(size);
446	}
447
448	/*public Bitmap get(String name, int size) {
449		return get(name,null, size,false);
450	}*/
451
452	public Bitmap get(final String name, String seed, final int size, boolean cachedOnly) {
453		final String KEY = key(seed == null ? name : seed, size);
454		Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
455		if (bitmap != null || cachedOnly) {
456			return bitmap;
457		}
458		bitmap = getImpl(name, seed, size);
459		mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
460		return bitmap;
461	}
462
463	private Bitmap getImpl(final String name, final String seed, final int size) {
464		Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
465		Canvas canvas = new Canvas(bitmap);
466		final String trimmedName = name == null ? "" : name.trim();
467		drawTile(canvas, trimmedName, seed, 0, 0, size, size);
468		return bitmap;
469	}
470
471	private String key(String name, int size) {
472		synchronized (this.sizes) {
473			if (!this.sizes.contains(size)) {
474				this.sizes.add(size);
475			}
476		}
477		return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
478	}
479
480	private boolean drawTile(Canvas canvas, String letter, int tileColor, int left, int top, int right, int bottom) {
481		letter = letter.toUpperCase(Locale.getDefault());
482		Paint tilePaint = new Paint(), textPaint = new Paint();
483		tilePaint.setColor(tileColor);
484		textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
485		textPaint.setColor(FG_COLOR);
486		textPaint.setTypeface(Typeface.create("sans-serif-light",
487				Typeface.NORMAL));
488		textPaint.setTextSize((float) ((right - left) * 0.8));
489		Rect rect = new Rect();
490
491		canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
492		textPaint.getTextBounds(letter, 0, 1, rect);
493		float width = textPaint.measureText(letter);
494		canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
495				/ 2 + rect.height() / 2, textPaint);
496		return true;
497	}
498
499	private boolean drawTile(Canvas canvas, MucOptions.User user, int left, int top, int right, int bottom) {
500		Contact contact = user.getContact();
501		if (contact != null) {
502			Uri uri = null;
503			if (contact.getProfilePhoto() != null) {
504				uri = Uri.parse(contact.getProfilePhoto());
505			} else if (contact.getAvatar() != null) {
506				uri = mXmppConnectionService.getFileBackend().getAvatarUri(
507						contact.getAvatar());
508			}
509			if (drawTile(canvas, uri, left, top, right, bottom)) {
510				return true;
511			}
512		} else if (user.getAvatar() != null) {
513			Uri uri = mXmppConnectionService.getFileBackend().getAvatarUri(user.getAvatar());
514			if (drawTile(canvas, uri, left, top, right, bottom)) {
515				return true;
516			}
517		}
518		if (contact != null) {
519			String seed = contact.getJid().asBareJid().toString();
520			drawTile(canvas, contact.getDisplayName(), seed, left, top, right, bottom);
521		} else {
522			String seed = user.getRealJid() == null ? null : user.getRealJid().asBareJid().toString();
523			drawTile(canvas, user.getName(), seed, left, top, right, bottom);
524		}
525		return true;
526	}
527
528	private boolean drawTile(Canvas canvas, Account account, int left, int top, int right, int bottom) {
529		String avatar = account.getAvatar();
530		if (avatar != null) {
531			Uri uri = mXmppConnectionService.getFileBackend().getAvatarUri(avatar);
532			if (uri != null) {
533				if (drawTile(canvas, uri, left, top, right, bottom)) {
534					return true;
535				}
536			}
537		}
538		String name = account.getJid().asBareJid().toString();
539		return drawTile(canvas, name, name, left, top, right, bottom);
540	}
541
542	private boolean drawTile(Canvas canvas, String name, String seed, int left, int top, int right, int bottom) {
543		if (name != null) {
544			final String letter = getFirstLetter(name);
545			final int color = UIHelper.getColorForName(seed == null ? name : seed);
546			drawTile(canvas, letter, color, left, top, right, bottom);
547			return true;
548		}
549		return false;
550	}
551
552	private static String getFirstLetter(String name) {
553		for (Character c : name.toCharArray()) {
554			if (Character.isLetterOrDigit(c)) {
555				return c.toString();
556			}
557		}
558		return "X";
559	}
560
561	private boolean drawTile(Canvas canvas, Uri uri, int left, int top, int right, int bottom) {
562		if (uri != null) {
563			Bitmap bitmap = mXmppConnectionService.getFileBackend()
564					.cropCenter(uri, bottom - top, right - left);
565			if (bitmap != null) {
566				drawTile(canvas, bitmap, left, top, right, bottom);
567				return true;
568			}
569		}
570		return false;
571	}
572
573	private boolean drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop, int dstright, int dstbottom) {
574		Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
575		canvas.drawBitmap(bm, null, dst, null);
576		return true;
577	}
578
579	@Override
580	public void onAdvancedStreamFeaturesAvailable(Account account) {
581		XmppConnection.Features features = account.getXmppConnection().getFeatures();
582		if (features.pep() && !features.pepPersistent()) {
583			Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": has pep but is not persistent");
584			if (account.getAvatar() != null) {
585				mXmppConnectionService.republishAvatarIfNeeded(account);
586			}
587		}
588	}
589
590	private static String emptyOnNull(@Nullable Jid value) {
591		return value == null ? "" : value.toString();
592	}
593}