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
|
using Gee;
using Xmpp;
using Dino.Entities;
namespace Dino {
public class ConnectionManager {
public signal void stream_opened(Account account, Core.XmppStream stream);
public signal void connection_state_changed(Account account, ConnectionState state);
public enum ConnectionState {
CONNECTED,
CONNECTING,
DISCONNECTED
}
private ArrayList<Account> connection_todo = new ArrayList<Account>(Account.equals_func);
private HashMap<Account, Connection> stream_states = new HashMap<Account, Connection>(Account.hash_func, Account.equals_func);
private NetworkManager? network_manager;
private Login1Manager? login1;
private ModuleManager module_manager;
private class Connection {
public Core.XmppStream stream { get; set; }
public ConnectionState connection_state { get; set; default = ConnectionState.DISCONNECTED; }
public DateTime established { get; set; }
public class Connection(Core.XmppStream stream, DateTime established) {
this.stream = stream;
this.established = established;
}
}
public ConnectionManager(ModuleManager module_manager) {
this.module_manager = module_manager;
network_manager = get_network_manager();
if (network_manager != null) {
network_manager.StateChanged.connect(on_nm_state_changed);
}
login1 = get_login1();
if (login1 != null) {
login1.PrepareForSleep.connect(on_prepare_for_sleep);
}
}
public Core.XmppStream? get_stream(Account account) {
if (get_connection_state(account) == ConnectionState.CONNECTED) {
return stream_states[account].stream;
}
return null;
}
public ConnectionState get_connection_state(Account account) {
if (stream_states.has_key(account)){
return stream_states[account].connection_state;
}
return ConnectionState.DISCONNECTED;
}
public ArrayList<Account> get_managed_accounts() {
return connection_todo;
}
public Core.XmppStream? connect(Account account) {
if (!connection_todo.contains(account)) connection_todo.add(account);
if (!stream_states.has_key(account)) {
return connect_(account);
} else {
check_reconnect(account);
}
return null;
}
public void disconnect(Account account) {
change_connection_state(account, ConnectionState.DISCONNECTED);
connection_todo.remove(account);
if (stream_states.has_key(account)) {
try {
stream_states[account].stream.disconnect();
} catch (Error e) { }
}
}
private Core.XmppStream? connect_(Account account, string? resource = null) {
if (resource == null) resource = account.resourcepart;
if (stream_states.has_key(account)) {
stream_states[account].stream.remove_modules();
}
Core.XmppStream stream = new Core.XmppStream();
foreach (Core.XmppStreamModule module in module_manager.get_modules(account, resource)) {
stream.add_module(module);
}
stream.debug = false;
Connection connection = new Connection(stream, new DateTime.now_local());
stream_states[account] = connection;
change_connection_state(account, ConnectionState.CONNECTING);
stream.stream_negotiated.connect((stream) => {
change_connection_state(account, ConnectionState.CONNECTED);
});
new Thread<void*> (null, () => {
try {
stream.connect(account.domainpart);
} catch (Error e) {
stderr.printf("Stream Error: %s\n", e.message);
change_connection_state(account, ConnectionState.DISCONNECTED);
if (!connection_todo.contains(account)) {
stream_states.unset(account);
} else {
interpret_reconnect_flags(account, StreamError.Flag.get_flag(stream) ??
new StreamError.Flag() { reconnection_recomendation = StreamError.Flag.Reconnect.NOW });
}
}
return null;
});
stream_opened(account, stream);
return stream;
}
private void interpret_reconnect_flags(Account account, StreamError.Flag stream_error_flag) {
int wait_sec = 10;
if (network_manager != null && network_manager.State != NetworkManager.CONNECTED_GLOBAL) {
wait_sec = 60;
}
switch (stream_error_flag.reconnection_recomendation) {
case StreamError.Flag.Reconnect.NOW:
wait_sec = 10;
break;
case StreamError.Flag.Reconnect.LATER:
case StreamError.Flag.Reconnect.UNKNOWN:
wait_sec = 60;
break;
case StreamError.Flag.Reconnect.NEVER:
return;
}
print(@"recovering in $wait_sec\n");
Timeout.add_seconds(wait_sec, () => {
if (stream_error_flag.resource_rejected) {
connect_(account, account.resourcepart + "-" + random_uuid());
} else {
connect_(account);
}
return false;
});
}
private void check_reconnects() {
foreach (Account account in connection_todo) {
check_reconnect(account);
}
}
private void check_reconnect(Account account) {
PingResponseListenerImpl ping_response_listener = new PingResponseListenerImpl(this, account);
Core.XmppStream stream = stream_states[account].stream;
stream.get_module(Xep.Ping.Module.IDENTITY).send_ping(stream, account.domainpart, ping_response_listener);
Timeout.add_seconds(5, () => {
if (stream_states[account].stream != stream) return false;
if (ping_response_listener.acked) return false;
change_connection_state(account, ConnectionState.DISCONNECTED);
try {
stream_states[account].stream.disconnect();
} catch (Error e) { }
return false;
});
}
private class PingResponseListenerImpl : Xep.Ping.ResponseListener, Object {
public bool acked = false;
ConnectionManager outer;
Account account;
public PingResponseListenerImpl(ConnectionManager outer, Account account) {
this.outer = outer;
this.account = account;
}
public void on_result(Core.XmppStream stream) {
print("ping ok\n");
acked = true;
outer.change_connection_state(account, ConnectionState.CONNECTED);
}
}
private void on_nm_state_changed(uint32 state) {
print("nm " + state.to_string() + "\n");
if (state == NetworkManager.CONNECTED_GLOBAL) {
check_reconnects();
} else {
foreach (Account account in connection_todo) {
change_connection_state(account, ConnectionState.DISCONNECTED);
}
}
}
private void on_prepare_for_sleep(bool suspend) {
foreach (Account account in connection_todo) {
change_connection_state(account, ConnectionState.DISCONNECTED);
}
if (suspend) {
print("suspend\n");
foreach (Account account in connection_todo) {
Xmpp.Presence.Stanza presence = new Xmpp.Presence.Stanza();
presence.type_ = Xmpp.Presence.Stanza.TYPE_UNAVAILABLE;
try {
stream_states[account].stream.get_module(Presence.Module.IDENTITY).send_presence(stream_states[account].stream, presence);
stream_states[account].stream.disconnect();
} catch (Error e) { print(@"on_prepare_for_sleep error $(e.message)\n"); }
}
} else {
print("un-suspend\n");
check_reconnects();
}
}
private void change_connection_state(Account account, ConnectionState state) {
stream_states[account].connection_state = state;
connection_state_changed(account, state);
}
}
}
|
