1package eu.siacs.conversations.entities;
  2
  3import android.annotation.SuppressLint;
  4
  5import java.util.ArrayList;
  6import java.util.List;
  7import java.util.concurrent.CopyOnWriteArrayList;
  8
  9import eu.siacs.conversations.R;
 10import eu.siacs.conversations.crypto.PgpEngine;
 11import eu.siacs.conversations.xml.Element;
 12import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 13import eu.siacs.conversations.xmpp.jid.Jid;
 14import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 15
 16@SuppressLint("DefaultLocale")
 17public class MucOptions {
 18
 19	public enum Affiliation {
 20		OWNER("owner", 4, R.string.owner),
 21		ADMIN("admin", 3, R.string.admin),
 22		MEMBER("member", 2, R.string.member),
 23		OUTCAST("outcast", 0, R.string.outcast),
 24		NONE("none", 1, R.string.no_affiliation);
 25
 26		private Affiliation(String string, int rank, int resId) {
 27			this.string = string;
 28			this.resId = resId;
 29			this.rank = rank;
 30		}
 31
 32		private String string;
 33		private int resId;
 34		private int rank;
 35
 36		public int getResId() {
 37			return resId;
 38		}
 39
 40		@Override
 41		public String toString() {
 42			return this.string;
 43		}
 44
 45		public boolean outranks(Affiliation affiliation) {
 46			return rank > affiliation.rank;
 47		}
 48
 49		public boolean ranks(Affiliation affiliation) {
 50			return rank >= affiliation.rank;
 51		}
 52	}
 53
 54	public enum Role {
 55		MODERATOR("moderator", R.string.moderator),
 56		VISITOR("visitor", R.string.visitor),
 57		PARTICIPANT("participant", R.string.participant),
 58		NONE("none", R.string.no_role);
 59
 60		private Role(String string, int resId) {
 61			this.string = string;
 62			this.resId = resId;
 63		}
 64
 65		private String string;
 66		private int resId;
 67
 68		public int getResId() {
 69			return resId;
 70		}
 71
 72		@Override
 73		public String toString() {
 74			return this.string;
 75		}
 76	}
 77
 78	public static final int ERROR_NO_ERROR = 0;
 79	public static final int ERROR_NICK_IN_USE = 1;
 80	public static final int ERROR_UNKNOWN = 2;
 81	public static final int ERROR_PASSWORD_REQUIRED = 3;
 82	public static final int ERROR_BANNED = 4;
 83	public static final int ERROR_MEMBERS_ONLY = 5;
 84
 85	public static final int KICKED_FROM_ROOM = 9;
 86
 87	public static final String STATUS_CODE_ROOM_CONFIG_CHANGED = "104";
 88	public static final String STATUS_CODE_SELF_PRESENCE = "110";
 89	public static final String STATUS_CODE_BANNED = "301";
 90	public static final String STATUS_CODE_CHANGED_NICK = "303";
 91	public static final String STATUS_CODE_KICKED = "307";
 92	public static final String STATUS_CODE_LOST_MEMBERSHIP = "321";
 93
 94	private interface OnEventListener {
 95		public void onSuccess();
 96
 97		public void onFailure();
 98	}
 99
100	public interface OnRenameListener extends OnEventListener {
101
102	}
103
104	public interface OnJoinListener extends OnEventListener {
105
106	}
107
108	public class User {
109		private Role role = Role.NONE;
110		private Affiliation affiliation = Affiliation.NONE;
111		private String name;
112		private Jid jid;
113		private long pgpKeyId = 0;
114
115		public String getName() {
116			return name;
117		}
118
119		public void setName(String user) {
120			this.name = user;
121		}
122
123		public void setJid(Jid jid) {
124			this.jid = jid;
125		}
126
127		public Jid getJid() {
128			return this.jid;
129		}
130
131		public Role getRole() {
132			return this.role;
133		}
134
135		public void setRole(String role) {
136			role = role.toLowerCase();
137			switch (role) {
138				case "moderator":
139					this.role = Role.MODERATOR;
140					break;
141				case "participant":
142					this.role = Role.PARTICIPANT;
143					break;
144				case "visitor":
145					this.role = Role.VISITOR;
146					break;
147				default:
148					this.role = Role.NONE;
149					break;
150			}
151		}
152
153		@Override
154		public boolean equals(Object other) {
155			if (this == other) {
156				return true;
157			} else if (!(other instanceof User)) {
158				return false;
159			} else {
160				User o = (User) other;
161				return name != null && name.equals(o.name)
162						&& jid != null && jid.equals(o.jid)
163						&& affiliation == o.affiliation
164						&& role == o.role;
165			}
166		}
167
168		public Affiliation getAffiliation() {
169			return this.affiliation;
170		}
171
172		public void setAffiliation(String affiliation) {
173			affiliation = affiliation.toLowerCase();
174			switch (affiliation) {
175				case "admin":
176					this.affiliation = Affiliation.ADMIN;
177					break;
178				case "owner":
179					this.affiliation = Affiliation.OWNER;
180					break;
181				case "member":
182					this.affiliation = Affiliation.MEMBER;
183					break;
184				case "outcast":
185					this.affiliation = Affiliation.OUTCAST;
186					break;
187				default:
188					this.affiliation = Affiliation.NONE;
189			}
190		}
191
192		public void setPgpKeyId(long id) {
193			this.pgpKeyId = id;
194		}
195
196		public long getPgpKeyId() {
197			return this.pgpKeyId;
198		}
199
200		public Contact getContact() {
201			return account.getRoster().getContactFromRoster(getJid());
202		}
203	}
204
205	private Account account;
206	private List<User> users = new CopyOnWriteArrayList<>();
207	private List<String> features = new ArrayList<>();
208	private Conversation conversation;
209	private boolean isOnline = false;
210	private int error = ERROR_UNKNOWN;
211	private OnRenameListener onRenameListener = null;
212	private OnJoinListener onJoinListener = null;
213	private User self = new User();
214	private String subject = null;
215	private String password = null;
216	private boolean mNickChangingInProgress = false;
217
218	public MucOptions(Conversation conversation) {
219		this.account = conversation.getAccount();
220		this.conversation = conversation;
221	}
222
223	public void updateFeatures(ArrayList<String> features) {
224		this.features.clear();
225		this.features.addAll(features);
226	}
227
228	public boolean hasFeature(String feature) {
229		return this.features.contains(feature);
230	}
231
232	public boolean canInvite() {
233		 return !membersOnly() || self.getAffiliation().ranks(Affiliation.ADMIN);
234	}
235
236	public boolean membersOnly() {
237		return hasFeature("muc_membersonly");
238	}
239
240	public boolean nonanonymous() {
241		return hasFeature("muc_nonanonymous");
242	}
243
244	public boolean persistent() {
245		return hasFeature("muc_persistent");
246	}
247
248	public void deleteUser(String name) {
249		for (int i = 0; i < users.size(); ++i) {
250			if (users.get(i).getName().equals(name)) {
251				users.remove(i);
252				return;
253			}
254		}
255	}
256
257	public void addUser(User user) {
258		for (int i = 0; i < users.size(); ++i) {
259			if (users.get(i).getName().equals(user.getName())) {
260				users.set(i, user);
261				return;
262			}
263		}
264		users.add(user);
265	}
266
267	public void processPacket(PresencePacket packet, PgpEngine pgp) {
268		final Jid from = packet.getFrom();
269		if (!from.isBareJid()) {
270			final String name = from.getResourcepart();
271			final String type = packet.getAttribute("type");
272			final Element x = packet.findChild("x", "http://jabber.org/protocol/muc#user");
273			final List<String> codes = getStatusCodes(x);
274			if (type == null) {
275				User user = new User();
276				if (x != null) {
277					Element item = x.findChild("item");
278					if (item != null && name != null) {
279						user.setName(name);
280						user.setAffiliation(item.getAttribute("affiliation"));
281						user.setRole(item.getAttribute("role"));
282						user.setJid(item.getAttributeAsJid("jid"));
283						if (codes.contains(STATUS_CODE_SELF_PRESENCE) || packet.getFrom().equals(this.conversation.getJid())) {
284							this.isOnline = true;
285							this.error = ERROR_NO_ERROR;
286							self = user;
287							if (mNickChangingInProgress) {
288								onRenameListener.onSuccess();
289								mNickChangingInProgress = false;
290							} else if (this.onJoinListener != null) {
291								this.onJoinListener.onSuccess();
292								this.onJoinListener = null;
293							}
294						} else {
295							addUser(user);
296						}
297						if (pgp != null) {
298							Element signed = packet.findChild("x", "jabber:x:signed");
299							if (signed != null) {
300								Element status = packet.findChild("status");
301								String msg;
302								if (status != null) {
303									msg = status.getContent();
304								} else {
305									msg = "";
306								}
307								user.setPgpKeyId(pgp.fetchKeyId(account, msg,
308										signed.getContent()));
309							}
310						}
311					}
312				}
313			} else if (type.equals("unavailable")) {
314				if (codes.contains(STATUS_CODE_SELF_PRESENCE) ||
315						packet.getFrom().equals(this.conversation.getJid())) {
316					if (codes.contains(STATUS_CODE_CHANGED_NICK)) {
317						this.mNickChangingInProgress = true;
318					} else if (codes.contains(STATUS_CODE_KICKED)) {
319						setError(KICKED_FROM_ROOM);
320					} else if (codes.contains(STATUS_CODE_BANNED)) {
321						setError(ERROR_BANNED);
322					} else if (codes.contains(STATUS_CODE_LOST_MEMBERSHIP)) {
323						setError(ERROR_MEMBERS_ONLY);
324					} else {
325						setError(ERROR_UNKNOWN);
326					}
327				} else {
328					deleteUser(name);
329				}
330			} else if (type.equals("error")) {
331				Element error = packet.findChild("error");
332				if (error != null && error.hasChild("conflict")) {
333					if (isOnline) {
334						if (onRenameListener != null) {
335							onRenameListener.onFailure();
336						}
337					} else {
338						setError(ERROR_NICK_IN_USE);
339					}
340				} else if (error != null && error.hasChild("not-authorized")) {
341					setError(ERROR_PASSWORD_REQUIRED);
342				} else if (error != null && error.hasChild("forbidden")) {
343					setError(ERROR_BANNED);
344				} else if (error != null && error.hasChild("registration-required")) {
345					setError(ERROR_MEMBERS_ONLY);
346				}
347			}
348		}
349	}
350
351	private void setError(int error) {
352		this.isOnline = false;
353		this.error = error;
354		if (onJoinListener != null) {
355			onJoinListener.onFailure();
356			onJoinListener = null;
357		}
358	}
359
360	private List<String> getStatusCodes(Element x) {
361		List<String> codes = new ArrayList<>();
362		if (x != null) {
363			for (Element child : x.getChildren()) {
364				if (child.getName().equals("status")) {
365					String code = child.getAttribute("code");
366					if (code != null) {
367						codes.add(code);
368					}
369				}
370			}
371		}
372		return codes;
373	}
374
375	public List<User> getUsers() {
376		return this.users;
377	}
378
379	public String getProposedNick() {
380		if (conversation.getBookmark() != null
381				&& conversation.getBookmark().getNick() != null
382				&& !conversation.getBookmark().getNick().isEmpty()) {
383			return conversation.getBookmark().getNick();
384		} else if (!conversation.getJid().isBareJid()) {
385			return conversation.getJid().getResourcepart();
386		} else {
387			return account.getUsername();
388		}
389	}
390
391	public String getActualNick() {
392		if (this.self.getName() != null) {
393			return this.self.getName();
394		} else {
395			return this.getProposedNick();
396		}
397	}
398
399	public boolean online() {
400		return this.isOnline;
401	}
402
403	public int getError() {
404		return this.error;
405	}
406
407	public void setOnRenameListener(OnRenameListener listener) {
408		this.onRenameListener = listener;
409	}
410
411	public void setOnJoinListener(OnJoinListener listener) {
412		this.onJoinListener = listener;
413	}
414
415	public void setOffline() {
416		this.users.clear();
417		this.error = 0;
418		this.isOnline = false;
419	}
420
421	public User getSelf() {
422		return self;
423	}
424
425	public void setSubject(String content) {
426		this.subject = content;
427	}
428
429	public String getSubject() {
430		return this.subject;
431	}
432
433	public String createNameFromParticipants() {
434		if (users.size() >= 2) {
435			List<String> names = new ArrayList<String>();
436			for (User user : users) {
437				Contact contact = user.getContact();
438				if (contact != null && !contact.getDisplayName().isEmpty()) {
439					names.add(contact.getDisplayName().split("\\s+")[0]);
440				} else {
441					names.add(user.getName());
442				}
443			}
444			StringBuilder builder = new StringBuilder();
445			for (int i = 0; i < names.size(); ++i) {
446				builder.append(names.get(i));
447				if (i != names.size() - 1) {
448					builder.append(", ");
449				}
450			}
451			return builder.toString();
452		} else {
453			return null;
454		}
455	}
456
457	public long[] getPgpKeyIds() {
458		List<Long> ids = new ArrayList<>();
459		for (User user : getUsers()) {
460			if (user.getPgpKeyId() != 0) {
461				ids.add(user.getPgpKeyId());
462			}
463		}
464		long[] primitivLongArray = new long[ids.size()];
465		for (int i = 0; i < ids.size(); ++i) {
466			primitivLongArray[i] = ids.get(i);
467		}
468		return primitivLongArray;
469	}
470
471	public boolean pgpKeysInUse() {
472		for (User user : getUsers()) {
473			if (user.getPgpKeyId() != 0) {
474				return true;
475			}
476		}
477		return false;
478	}
479
480	public boolean everybodyHasKeys() {
481		for (User user : getUsers()) {
482			if (user.getPgpKeyId() == 0) {
483				return false;
484			}
485		}
486		return true;
487	}
488
489	public Jid createJoinJid(String nick) {
490		try {
491			return Jid.fromString(this.conversation.getJid().toBareJid().toString() + "/" + nick);
492		} catch (final InvalidJidException e) {
493			return null;
494		}
495	}
496
497	public Jid getTrueCounterpart(String counterpart) {
498		for (User user : this.getUsers()) {
499			if (user.getName().equals(counterpart)) {
500				return user.getJid();
501			}
502		}
503		return null;
504	}
505
506	public String getPassword() {
507		this.password = conversation.getAttribute(Conversation.ATTRIBUTE_MUC_PASSWORD);
508		if (this.password == null && conversation.getBookmark() != null
509				&& conversation.getBookmark().getPassword() != null) {
510			return conversation.getBookmark().getPassword();
511		} else {
512			return this.password;
513		}
514	}
515
516	public void setPassword(String password) {
517		if (conversation.getBookmark() != null) {
518			conversation.getBookmark().setPassword(password);
519		} else {
520			this.password = password;
521		}
522		conversation.setAttribute(Conversation.ATTRIBUTE_MUC_PASSWORD, password);
523	}
524
525	public Conversation getConversation() {
526		return this.conversation;
527	}
528}