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
|
#-*- perl -*-
#
# Copyright (C) 2001,2002 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $FML: Command.pm,v 1.22 2002/02/20 13:59:48 fukachan Exp $
#
package FML::Command;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
use FML::Log qw(Log LogWarn LogError);
=head1 NAME
FML::Command - dispacher of fml commands
=head1 SYNOPSIS
=head1 DESCRIPTION
C<FML::Command> is a wrapper and dispathcer for fml commands.
AUTOLOAD() picks up the command request and dispatches
C<FML::Command::User::somoting> for the request.
Also, C<FML::Command::Admin::somoting> for the admin command request.
=head1 METHODS
=head2 C<new()>
ordinary constructor.
=head2 C<AUTOLOAD()>
dispatcher.
It hooks up the C<command> request and loads the module
C<FML::Command::command>.
=cut
# Descriptions: ordinary constructor
# Arguments: OBJ($self)
# Side Effects: none
# Return Value: OBJ
sub new
{
my ($self) = @_;
my ($type) = ref($self) || $self;
my $me = {};
return bless $me, $type;
}
# Descriptions: rewrite buffer
# Arguments: OBJ($self) OBJ($curproc) HASH_REF($command_args) STR_REF($rbuf)
# Side Effects: none
# Return Value: none
sub rewrite_prompt
{
my ($self, $curproc, $command_args, $rbuf) = @_;
my $command = undef;
my $comname = $command_args->{ comname };
my $mode = $command_args->{'command_mode'} =~ /admin/i ? 'Admin' : 'User';
my $pkg = "FML::Command::${mode}::${comname}";
eval qq{ use $pkg; \$command = new $pkg;};
unless ($@) {
if ($command->can('rewrite_prompt')) {
$command->rewrite_prompt($curproc, $command_args, $rbuf);
}
}
}
# Descriptions: ordinary destructor
# Arguments: none
# Side Effects: none
# Return Value: none
sub DESTROY { ;}
# Descriptions: run FML::Command::XXX:YYY()
# Arguments: OBJ($self) OBJ($curproc) HASH_REF($command_args)
# Side Effects: load appropriate module
# Return Value: none
sub AUTOLOAD
{
my ($self, $curproc, $command_args) = @_;
my $mode = 'User';
return if $AUTOLOAD =~ /DESTROY/;
if (defined $command_args->{ 'command_mode' }) {
$mode = $command_args->{'command_mode'} =~ /admin/i ? 'Admin' : 'User';
}
my $comname = $AUTOLOAD;
$comname =~ s/.*:://;
my $pkg = "FML::Command::${mode}::${comname}";
Log("load $pkg") if $0 =~ /loader/; # debug
my $command = undef;
eval qq{ use $pkg; \$command = new $pkg;};
unless ($@) {
my $need_lock = 1; # default.
if ($command->can('auth')) {
$command->auth($curproc, $command_args);
}
# this command needs lock (currently giant lock) ?
if ($command->can('need_lock')) {
$need_lock = $command->need_lock($mode);
# override lock()
if (defined $command_args->{ override_need_no_lock }) {
$need_lock = 0 if $command_args->{ override_need_no_lock };
}
}
if ($command->can('process')) {
$curproc->lock() if $need_lock;
$command->process($curproc, $command_args);
$curproc->unlock() if $need_lock;
}
else {
LogError("${pkg} has no process method");
}
}
else {
LogError($@) if $@;
LogError("$pkg module is not found");
croak("$pkg module is not found"); # upcall to FML::Process::Command
}
}
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2001,2002 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
FML::Command appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
|
