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
|
#! /usr/bin/env false
use v6.d;
use IRC::Client::Message;
use IRC::Client::Plugin;
use Log;
#| This class handles incoming messages, formats a context from them and
#| dispatches it on to any registered plugin that can handle it.
unit class IRC::Client::Handler;
#| Handle numeric commands.
multi method handle (
$event where { $_.command ~~ / \d ** 3/ },
) {
my @events;
# Special cases for IRC::Client
@events.append('irc-connected' => $event.irc) if $event.command eq '001';
@events.append('irc-ready' => $event.irc) if $event.command eq '376';
@events.append('irc-ready' => $event.irc) if $event.command eq '422';
# Regular events, handles in the regular way
@events.append("irc-n{$event.command}" => $event);
@events.append('irc-numeric' => $event);
@events.append('irc-all' => $event);
self.dispatch(@events, $event.irc);
}
#| Handle PRIVMSG and NOTICE commands.
multi method handle (
$event where { $_.command ∈ <PRIVMSG NOTICE> }
) {
my @events;
my $stripped;
# If the message starts with the name of the client, it should dispatch
# an irc-addressed event.
if ($event.params[*-1] ~~ / ^ ( "{$event.irc.nick}" <[:;,]> <.ws> ) /) {
$stripped = $event.set-param(*-1, $event.params[*-1].substr($0.chars));
}
# A private message to the client should dispatch an irc-to-me event,
# optionally stripping away the client's current nickname from the
# start.
if ($event.params[0] eq $event.irc.nick) {
@events.append('irc-to-me' => $stripped // $event);
}
# A message to a public channel prefixed with the client's current
# nickname is both an irc-to-me event, and an irc-addressed event.
if ($event.params[0] ne $event.irc.nick && $stripped) {
@events.append('irc-to-me' => $stripped);
@events.append('irc-addressed' => $stripped);
}
@events.append("irc-{$event.command.fc}-me" => $event) if $event.params[0] eq $event.irc.nick;
@events.append('irc-mentioned' => $event) if $event.params[*-1].words ∋ $event.irc.nick;
@events.append("irc-{$event.command.fc}-channel" => $event) if $event.params[0] ~~ / ^ <[#&]> /;
@events.append("irc-{$event.command.fc}" => $event);
@events.append('irc-all' => $event);
self.dispatch(@events, $event.irc);
}
#| Handle MODE commands.
multi method handle (
$event where { $_.command eq 'MODE' }
) {
my @events;
@events.append('irc-mode-me' => $event) if $event.params[0] eq $event.irc.nick;
@events.append('irc-mode-channel' => $event) if $event.params[0] ~~ / ^ <[#&]> /;
@events.append('irc-mode' => $event);
@events.append('irc-all' => $event);
self.dispatch(@events, $event.irc);
}
#| Handle all IRC commands. Note that the order in which events are appended
#| does matter, the most "narrow" event should always come first, getting
#| broader as we go down the list.
multi method handle (
$event,
) {
my @events;
@events.append("irc-{$event.command.fc}" => $event);
@events.append('irc-all' => $event);
self.dispatch(@events, $event.irc);
}
#| Dispatch the message to all plugins.
method dispatch (
@events,
$client, #= IRC::Client, but can't `use` this due to circular references
) {
my @plugins = $client.plugins;
# Loop over all the plugins, and dispatch to each of them on a seperate
# thread. This allows plugins to take their sweet time, while not being
# in any other plugins' way.
for $client.plugins -> $plugin {
start {
CATCH {
default {
my $exception = $_;
.emergency($exception.gist.lines.map(*.trim-trailing).join("\n")) with $Log::instance;
}
}
self.dispatch-plugin(@events, $plugin)
}
}
}
#| Dispatch the message to all plugin methods that can handle them.
method dispatch-plugin (
@events,
IRC::Client::Plugin $plugin,
) {
for @events -> $event {
my $method = $event.key;
my $payload = $event.value;
# Check for available methods to handle this payload.
my @methods = $plugin.^can($method)
.map(*.candidates)
.flat
.grep(*.cando(\($plugin, $payload)))
;
# Nothing to do if nothing was found.
next unless @methods;
.debug("Dispatching to {$plugin.^name}.$method") with $Log::instance;
my $response = $plugin."$method"($payload);
next unless $payload ~~ IRC::Client::Message;
# Depending on the return value of the method, something can be
# done.
given ($response) {
when Str {
$payload.reply($response);
last;
}
}
}
}
=begin pod
=NAME IRC::Client::Handler
=AUTHOR Patrick Spek <~tyil/raku-devel@lists.sr.ht>
=VERSION 0.0.0
=head1 Synopsis
=head1 Description
=head1 Examples
=head1 See also
=end pod
# vim: ft=perl6 noet
|
