1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
|
/*
* Copyright (C) 2008-2017, Juick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.juick.server;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.juick.Message;
import com.juick.User;
import com.juick.model.AnonymousUser;
import com.juick.service.MessagesService;
import com.juick.service.SubscriptionService;
import com.juick.service.UserService;
import com.juick.service.component.LikeEvent;
import com.juick.service.component.MessageEvent;
import com.juick.service.component.MessageReadEvent;
import com.juick.service.component.NotificationListener;
import com.juick.service.component.PingEvent;
import com.juick.service.component.SubscribeEvent;
import com.juick.service.component.TopEvent;
import com.juick.util.MessageUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
import org.springframework.web.socket.TextMessage;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.stream.Collectors;
/**
* @author Ugnich Anton
*/
@Component
public class ServerManager implements NotificationListener {
private static Logger logger = LoggerFactory.getLogger(ServerManager.class);
@Inject
private ObjectMapper jsonMapper;
@Inject
private MessagesService messagesService;
@Inject
private WebsocketManager wsHandler;
@Inject
private SubscriptionService subscriptionService;
@Inject
private UserService userService;
private CopyOnWriteArrayList<EventSession> sessions = new CopyOnWriteArrayList<>();
@Value("${service_user:juick}")
private String serviceUsername;
private User serviceUser;
@PostConstruct
public void init() {
serviceUser = userService.getUserByName(serviceUsername);
}
private void onJuickPM(final User to, final com.juick.Message jmsg) {
try {
String json = jsonMapper.writeValueAsString(jmsg);
synchronized (wsHandler.getClients()) {
wsHandler.getClients().stream().filter(c ->
(!c.legacy && c.visitor.getUid() == to.getUid()) || c.visitor.equals(serviceUser))
.forEach(c -> {
try {
logger.debug("sending pm to {}", c.visitor.getUid());
c.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
}
} catch (JsonProcessingException e) {
logger.warn("Invalid JSON", e);
}
sendSseEvent(jmsg, Collections.singletonList(to));
}
private void onJuickMessagePost(final com.juick.Message jmsg, List<User> subscribedUsers) {
try {
String json = jsonMapper.writeValueAsString(jmsg);
List<Integer> uids = subscribedUsers
.stream().map(User::getUid).collect(Collectors.toList());
synchronized (wsHandler.getClients()) {
wsHandler.getClients().stream().filter(c ->
(!c.legacy && c.visitor.isAnonymous()) // anonymous users
|| c.visitor.getName().equals(serviceUser) // services
|| (!c.legacy && uids.contains(c.visitor.getUid()))) // subscriptions
.forEach(c -> {
try {
logger.debug("sending message to {}", c.visitor.getUid());
c.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
wsHandler.getClients().stream().filter(c ->
c.legacy && c.allMessages) // legacy all posts
.forEach(c -> {
try {
logger.debug("sending message to legacy client {}", c.visitor.getUid());
c.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
}
} catch (JsonProcessingException e) {
logger.warn("Invalid JSON", e);
}
sendSseEvent(jmsg, subscribedUsers);
sendSseEvent(jmsg, Collections.singletonList(AnonymousUser.INSTANCE));
}
private void onJuickMessageReply(final com.juick.Message jmsg, final List<User> subscribedUsers) {
try {
String json = jsonMapper.writeValueAsString(jmsg);
com.juick.Message op = messagesService.getMessage(jmsg.getMid());
List<Integer> threadUsers =
subscribedUsers
.stream().map(User::getUid).collect(Collectors.toList());
synchronized (wsHandler.getClients()) {
wsHandler.getClients().stream().filter(c ->
(!c.legacy && c.visitor.isAnonymous()) // anonymous users
|| c.visitor.getName().equals(serviceUser) // services
|| (!c.legacy && threadUsers.contains(c.visitor.getUid()))) // subscriptions
.forEach(c -> {
try {
logger.debug("sending reply to {}", c.visitor.getUid());
c.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
wsHandler.getClients().stream().filter(c ->
(c.legacy && c.allReplies) || (c.legacy && c.MID == jmsg.getMid())) // legacy replies
.forEach(c -> {
try {
logger.debug("sending reply to legacy client {}", c.visitor.getUid());
c.sendMessage(new TextMessage(json));
} catch (IOException e) {
logger.warn("ws error", e);
}
});
}
} catch (JsonProcessingException e) {
logger.warn("Invalid JSON", e);
}
sendSseEvent(jmsg, subscribedUsers);
sendSseEvent(jmsg, Collections.singletonList(AnonymousUser.INSTANCE));
}
@Override
public void processMessageEvent(MessageEvent event) {
com.juick.Message jmsg = event.getMessage();
List<User> subscribedUsers = event.getUsers();
if (jmsg.isService()) {
return;
}
if (MessageUtils.isPM(jmsg)) {
onJuickPM(jmsg.getTo(), jmsg);
} else if (!MessageUtils.isReply(jmsg)) {
// to get full message with attachment, etc.
onJuickMessagePost(messagesService.getMessage(jmsg.getMid()), subscribedUsers);
} else {
// to get quote and attachment
Message op = messagesService.getMessage(jmsg.getMid());
com.juick.Message reply = messagesService.getReply(jmsg.getMid(), jmsg.getRid());
subscriptionService.getUsersSubscribedToComments(op, reply, true).stream()
.filter(u -> userService.isReplyToBL(u, reply))
.forEach(b -> messagesService.setLastReadComment(b, reply.getMid(), reply.getRid()));
onJuickMessageReply(reply, subscribedUsers);
}
sendSseEvent(jmsg, Collections.singletonList(serviceUser));
}
@Override
public void processSubscribeEvent(SubscribeEvent subscribeEvent) {
}
@Override
public void processLikeEvent(LikeEvent likeEvent) {
}
@Override
public void processPingEvent(PingEvent pingEvent) {
}
@Override
public void processMessageReadEvent(MessageReadEvent messageReadEvent) {
List<User> users = messageReadEvent.getUsers();
Message source = messageReadEvent.getMessage();
users.forEach(userTo -> {
logger.info("Message read event from {} for {}", userTo.getName(), source.getMid());
wsHandler.getClients().stream().filter(c ->
(!c.legacy && c.visitor.getUid() == userTo.getUid()) || c.visitor.getName().equals(serviceUser)
).forEach(u -> {
Message serviceMessage = new Message();
serviceMessage.setService(true);
serviceMessage.setUser(userTo);
serviceMessage.setMid(source.getMid());
serviceMessage.setUnread(false);
try {
u.sendMessage(new TextMessage(jsonMapper.writeValueAsString(serviceMessage)));
} catch (IOException e) {
logger.error("JSON error", e);
}
});
});
sendSseEvent(source, Collections.singletonList(serviceUser));
}
@Override
public void processTopEvent(TopEvent topEvent) {
}
public void sendSseEvent(Message msg, List<User> subscribers) {
List<EventSession> deadEmitters = new ArrayList<>();
this.sessions.stream().filter(s -> subscribers.contains(s.user)).forEach(session -> {
try {
session.getEmitter().send(msg);
} catch (Exception e) {
deadEmitters.add(session);
}
});
this.sessions.removeAll(deadEmitters);
}
public static class EventSession {
private User user;
private SseEmitter emitter;
public EventSession(User user, SseEmitter sseEmitter) {
this.user = user;
this.emitter = sseEmitter;
}
public User getUser() {
return user;
}
public SseEmitter getEmitter() {
return emitter;
}
}
public CopyOnWriteArrayList<EventSession> getSessions() {
return sessions;
}
}
|
