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
|
/*
* 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.databind.ObjectMapper;
import com.juick.Message;
import com.juick.User;
import com.juick.server.helpers.AnonymousUser;
import com.juick.server.util.HttpBadRequestException;
import com.juick.server.util.HttpForbiddenException;
import com.juick.server.util.HttpNotFoundException;
import com.juick.service.MessagesService;
import com.juick.service.SubscriptionService;
import com.juick.service.UserService;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.math.NumberUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpHeaders;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.PingMessage;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;
import org.springframework.web.util.UriComponents;
import org.springframework.web.util.UriComponentsBuilder;
import javax.inject.Inject;
import java.io.IOException;
import java.net.URI;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
/**
* Created by vitalyster on 28.06.2016.
*/
@Component
public class WebsocketManager extends TextWebSocketHandler {
private static final Logger logger = LoggerFactory.getLogger(WebsocketManager.class);
private final List<SocketSubscribed> clients = Collections.synchronizedList(new LinkedList<>());
@Inject
private UserService userService;
@Inject
private MessagesService messagesService;
@Inject
private SubscriptionService subscriptionService;
@Value("${service_user:juick}")
private String serviceUser;
@Inject
private ObjectMapper jsonMapper;
@Inject
private CommandsManager commandsManager;
@Override
public void afterConnectionEstablished(WebSocketSession session) {
URI hLocation;
String hXRealIP;
hLocation = session.getUri();
HttpHeaders headers = session.getHandshakeHeaders();
hXRealIP = headers.getOrDefault("X-Real-IP",
Collections.singletonList(session.getRemoteAddress().toString())).get(0);
// Auth
User visitor = AnonymousUser.INSTANCE;
UriComponents uriComponents = UriComponentsBuilder.fromUri(hLocation).build();
List<String> hash = uriComponents.getQueryParams().get("hash");
if (hash != null && hash.get(0).length() == 16) {
visitor = userService.getUserByHash(hash.get(0));
} else {
logger.debug("wrong hash for {} from {}", visitor.getUid(), hXRealIP);
}
int MID = 0;
SocketSubscribed sockSubscr = null;
if (hLocation.getPath().equals("/ws/")) {
logger.debug("user {} connected", visitor.getUid());
sockSubscr = new SocketSubscribed(session, hXRealIP, visitor, false);
} else if (hLocation.getPath().equals("/ws/_all")) {
logger.debug("user {} connected to legacy _all ({})", visitor.getUid(), hLocation.getPath());
sockSubscr = new SocketSubscribed(session, hXRealIP, visitor, true);
sockSubscr.allMessages = true;
} else if (hLocation.getPath().equals("/ws/_replies")) {
logger.debug("user {} connected to legacy _replies ({})", visitor.getUid(), hLocation.getPath());
sockSubscr = new SocketSubscribed(session, hXRealIP, visitor, true);
sockSubscr.allReplies = true;
} else if (hLocation.getPath().matches("^/ws/(\\d)+$")) {
MID = NumberUtils.toInt(hLocation.getPath().substring(4), 0);
if (MID > 0) {
if (messagesService.canViewThread(MID, visitor.getUid())) {
logger.debug("user {} connected to legacy thread ({}) from {}", visitor.getUid(), MID, hXRealIP);
sockSubscr = new SocketSubscribed(session, hXRealIP, visitor, true);
sockSubscr.MID = MID;
} else {
throw new HttpForbiddenException();
}
}
} else {
throw new HttpNotFoundException();
}
if (sockSubscr != null) {
synchronized (clients) {
clients.add(sockSubscr);
logger.debug("{} clients connected", clients.size());
}
} else {
throw new HttpBadRequestException();
}
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
synchronized (clients) {
logger.debug("session closed with status {}: {}", status.getCode(), status.getReason());
clients.removeIf(c -> c.session.getId().equals(session.getId()));
logger.debug("{} clients connected", clients.size());
}
}
@Override
protected void handleTextMessage(WebSocketSession session, TextMessage message) {
if (StringUtils.defaultString(message.getPayload()).trim().isEmpty()) {
return;
}
clients.stream().filter(c -> c.session.equals(session)).findFirst().ifPresent( c -> {
if (c.visitor.getName().equals(serviceUser)) {
try {
Message draft = jsonMapper.readValue(message.asBytes(), Message.class);
if (draft.getUser() != null && (draft.getText() != null || draft.getAttachment() != null)) {
String attachmentFileName = draft.getAttachment() == null ? "" : draft.getAttachment().getUrl();
commandsManager.processCommand(draft.getUser(), draft.getText(), URI.create(attachmentFileName));
}
} catch (Exception e) {
throw new HttpBadRequestException();
}
} else {
throw new HttpForbiddenException();
}
});
}
@Scheduled(fixedRate = 30000)
public void ping() {
clients.forEach(c -> {
try {
c.session.sendMessage(new PingMessage());
} catch (IOException e) {
logger.error("WebSocket PING exception", e);
}
});
}
public List<SocketSubscribed> getClients() {
return clients;
}
class SocketSubscribed {
WebSocketSession session;
String clientName;
User visitor;
int MID;
boolean allMessages;
boolean allReplies;
long tsConnected;
long tsLastData;
boolean legacy;
public SocketSubscribed(WebSocketSession session, String clientName, User visitor, boolean legacy) {
this.session = session;
this.clientName = clientName;
this.visitor = visitor;
tsConnected = tsLastData = System.currentTimeMillis();
this.legacy = legacy;
}
}
}
|
