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
|
using Gee;
public abstract class Xmpp.XmppStream : Object {
public signal void received_node(XmppStream stream, StanzaNode node);
public signal void received_root_node(XmppStream stream, StanzaNode node);
public signal void received_features_node(XmppStream stream);
public signal void received_message_stanza(XmppStream stream, StanzaNode node);
public signal void received_presence_stanza(XmppStream stream, StanzaNode node);
public signal void received_iq_stanza(XmppStream stream, StanzaNode node);
public signal void received_nonza(XmppStream stream, StanzaNode node);
public signal void stream_negotiated(XmppStream stream);
public signal void attached_modules(XmppStream stream);
public const string NS_URI = "http://etherx.jabber.org/streams";
public Gee.List<XmppStreamFlag> flags { get; private set; default=new ArrayList<XmppStreamFlag>(); }
public Gee.List<XmppStreamModule> modules { get; private set; default=new ArrayList<XmppStreamModule>(); }
public StanzaNode? features { get; private set; default = new StanzaNode.build("features", NS_URI); }
public Jid remote_name;
public XmppLog log = new XmppLog();
public bool negotiation_complete { get; set; default=false; }
protected bool non_negotiation_modules_attached = false;
protected bool setup_needed = false;
protected bool disconnected = false;
protected XmppStream(Jid remote_name) {
this.remote_name = remote_name;
}
public abstract new async void connect() throws IOError;
public abstract new async void disconnect() throws IOError;
public abstract async StanzaNode read() throws IOError;
[Version (deprecated = true, deprecated_since = "0.1", replacement = "write_async")]
public abstract void write(StanzaNode node, int io_priority = Priority.DEFAULT);
public abstract async void write_async(StanzaNode node, int io_priority = Priority.DEFAULT, Cancellable? cancellable = null) throws IOError;
public abstract async void setup() throws IOError;
public void require_setup() {
setup_needed = true;
}
public bool is_setup_needed() {
return setup_needed;
}
public void add_flag(XmppStreamFlag flag) {
flags.add(flag);
}
public bool has_flag<T>(FlagIdentity<T>? identity) {
return get_flag(identity) != null;
}
public T? get_flag<T>(FlagIdentity<T>? identity) {
if (identity == null) return null;
foreach (var flag in flags) {
if (((!)identity).matches(flag)) return ((!)identity).cast(flag);
}
return null;
}
public void remove_flag(XmppStreamFlag flag) {
flags.remove(flag);
}
public XmppStream add_module(XmppStreamModule module) {
foreach (XmppStreamModule m in modules) {
if (m.get_ns() == module.get_ns() && m.get_id() == module.get_id()) {
warning("[%p] Adding already added module: %s\n", this, module.get_id());
return this;
}
}
modules.add(module);
if (negotiation_complete) module.attach(this);
return this;
}
public void detach_modules() {
foreach (XmppStreamModule module in modules) {
module.detach(this);
}
}
public T? get_module<T>(ModuleIdentity<T>? identity) {
if (identity == null) return null;
foreach (var module in modules) {
if (((!)identity).matches(module)) return ((!)identity).cast(module);
}
return null;
}
public async void loop() throws IOError {
while (true) {
if (setup_needed) {
yield setup();
}
StanzaNode node = yield read();
Idle.add(loop.callback);
yield;
if (disconnected) break;
yield handle_stanza(node);
if (!non_negotiation_modules_attached && negotiation_modules_done()) {
attach_non_negotation_modules();
non_negotiation_modules_attached = true;
if (!negotiation_complete) {
stream_negotiated(this);
negotiation_complete = true;
}
}
}
}
private async void handle_stanza(StanzaNode node) {
received_node(this, node);
if (node.ns_uri == NS_URI && node.name == "features") {
features = node;
received_features_node(this);
} else if (node.ns_uri == NS_URI && node.name == "stream" && node.pseudo) {
debug("[%p] Server closed stream", this);
try {
yield disconnect();
} catch (Error e) {}
return;
} else if (node.ns_uri == JABBER_URI) {
if (node.name == "message") {
received_message_stanza(this, node);
} else if (node.name == "presence") {
received_presence_stanza(this, node);
} else if (node.name == "iq") {
received_iq_stanza(this, node);
} else {
received_nonza(this, node);
}
} else {
received_nonza(this, node);
}
}
public bool is_negotiation_active() {
foreach (XmppStreamModule module in modules) {
if (module is XmppStreamNegotiationModule) {
XmppStreamNegotiationModule negotiation_module = (XmppStreamNegotiationModule) module;
if (negotiation_module.negotiation_active(this)) return true;
}
}
return false;
}
private bool negotiation_modules_done() throws IOError {
if (setup_needed) return false;
if (is_negotiation_active()) return false;
foreach (XmppStreamModule module in modules) {
if (module is XmppStreamNegotiationModule) {
XmppStreamNegotiationModule negotiation_module = (XmppStreamNegotiationModule) module;
if (negotiation_module.mandatory_outstanding(this)) {
throw new IOError.FAILED("mandatory-to-negotiate feature not negotiated: " + negotiation_module.get_id());
}
}
}
return true;
}
private void attach_non_negotation_modules() {
foreach (XmppStreamModule module in modules) {
if (module as XmppStreamNegotiationModule == null) {
module.attach(this);
}
}
attached_modules(this);
}
public void attach_negotation_modules() {
foreach (XmppStreamModule module in modules) {
if (module as XmppStreamNegotiationModule != null) {
module.attach(this);
}
}
}
}
|
