Commit | Line | Data |
514dce63 |
1 | package Promulger::List; |
243baf4d |
2 | use Moo; |
514dce63 |
3 | |
f5baca29 |
4 | use autodie ':all'; |
514dce63 |
5 | use Carp; |
f5baca29 |
6 | use Path::Class; |
7 | use Fcntl ':flock'; |
9bfd7b60 |
8 | use Tie::File; |
0456162d |
9 | use File::Slurp qw/read_file write_file/; |
243baf4d |
10 | use Data::Dumper; |
0456162d |
11 | use Try::Tiny; |
1beca6d0 |
12 | use FindBin qw($Bin); |
243baf4d |
13 | $Data::Dumper::Purity = 1; |
514dce63 |
14 | |
21baaef0 |
15 | use Promulger::Config; |
16 | |
514dce63 |
17 | has listname => ( |
18 | is => 'ro', |
243baf4d |
19 | isa => sub { $_[0] =~ /^\w+$/ or die "listname must be a string" }, |
514dce63 |
20 | required => 1, |
21 | ); |
22 | |
23 | has active => ( |
24 | is => 'rw', |
243baf4d |
25 | isa => sub { ($_[0] == 0 || $_[0] == 1) or die "active must be 0 or 1" }, |
514dce63 |
26 | required => 1, |
243baf4d |
27 | default => sub { 1 }, |
514dce63 |
28 | ); |
29 | |
21baaef0 |
30 | has subscribers => ( |
31 | is => 'rw', |
243baf4d |
32 | isa => sub { ref $_[0] eq 'HASH' or die "subscribers must be a hashref" }, |
21baaef0 |
33 | required => 1, |
34 | default => sub { {} }, |
35 | ); |
36 | |
21baaef0 |
37 | sub resolve { |
9bfd7b60 |
38 | my ($self, $proto) = @_; |
21baaef0 |
39 | $proto =~ s/-request$//; |
40 | my $path = find_path_for($proto); |
41 | my $maybe_list; |
0456162d |
42 | try { |
21baaef0 |
43 | $maybe_list = __PACKAGE__->load($path->stringify); |
0456162d |
44 | } catch { |
45 | die "oh noes: $_"; |
21baaef0 |
46 | }; |
47 | return $maybe_list; |
48 | } |
f5baca29 |
49 | |
21baaef0 |
50 | sub subscribe { |
9bfd7b60 |
51 | my ($self, $new) = @_; |
8ad89cb2 |
52 | return if $self->subscribers->{$new}; |
53 | $self->subscribers->{$new} = 1; |
54 | $self->store(find_path_for($self->listname)->stringify); |
55 | return 1; |
21baaef0 |
56 | } |
f5baca29 |
57 | |
21baaef0 |
58 | sub unsubscribe { |
9bfd7b60 |
59 | my ($self, $ex) = @_; |
8ad89cb2 |
60 | return unless exists $self->subscribers->{$ex}; |
61 | delete $self->subscribers->{$ex}; |
62 | $self->store(find_path_for($self->listname)->stringify); |
63 | return 1; |
21baaef0 |
64 | } |
f5baca29 |
65 | |
21baaef0 |
66 | # XXX implement ACLs and other shinies -- apeiron, 2010-03-13 |
67 | sub accept_posts_from { |
9bfd7b60 |
68 | my ($self, $sender) = @_; |
8ad89cb2 |
69 | return grep { $sender eq $_ } keys %{$self->subscribers}; |
21baaef0 |
70 | } |
f5baca29 |
71 | |
72 | sub setup { |
9bfd7b60 |
73 | my ($self) = @_; |
21baaef0 |
74 | my $config = Promulger::Config->config; |
514dce63 |
75 | my $name = $self->listname; |
9bfd7b60 |
76 | croak "${name} already a known list" if $self->resolve($name); |
21baaef0 |
77 | my $path = find_path_for($name); |
f5baca29 |
78 | |
7636373d |
79 | my $tie = tie my @aliases, 'Tie::File', $config->{aliases} |
80 | or die "cannot tie " . $config->{aliases} . ": $!"; |
9bfd7b60 |
81 | $tie->flock; |
82 | my @list_aliases = ($name, "${name}-request"); |
21baaef0 |
83 | |
9bfd7b60 |
84 | for my $list_alias (@list_aliases) { |
85 | if(grep { /^${list_alias}:/ } @aliases) { |
86 | croak "${list_alias} already in $config->{aliases}"; |
514dce63 |
87 | } |
9bfd7b60 |
88 | push @aliases, |
1beca6d0 |
89 | qq(${list_alias}: "|$Bin msg -c $config->{config_file}"\n); |
514dce63 |
90 | } |
21baaef0 |
91 | |
f5baca29 |
92 | $self->store($path->stringify); |
9bfd7b60 |
93 | } |
94 | |
95 | sub delete { |
96 | my ($self) = @_; |
97 | my $config = Promulger::Config->config; |
98 | my $name = $self->listname; |
99 | |
100 | my $tie = tie my @aliases, 'Tie::File', $config->{aliases}; |
101 | $tie->flock; |
102 | |
103 | my @list_aliases = ($name, "${name}-request"); |
104 | @aliases = grep { |
105 | $_ !~ /^$list_aliases[0]:/ && |
106 | $_ !~ /^$list_aliases[1]:/ |
107 | } @aliases; |
108 | |
8ad89cb2 |
109 | unlink find_path_for($self->listname)->stringify; |
514dce63 |
110 | } |
111 | |
21baaef0 |
112 | sub find_path_for { |
113 | my ($proto) = @_; |
114 | my $path = file(Promulger::Config->config->{list_home}, $proto . ".list"); |
9bfd7b60 |
115 | return $path; |
21baaef0 |
116 | } |
117 | |
243baf4d |
118 | sub store { |
119 | my ($self, $path) = @_; |
120 | my $dumped = 'do { my '. Dumper($self) . '; $VAR1; }'; |
121 | write_file($path, $dumped); |
122 | } |
123 | |
124 | sub load { |
125 | my ($class, $path) = @_; |
126 | return do $path; |
127 | } |
128 | |
0456162d |
129 | sub get_lists { |
130 | my ($self) = @_; |
131 | my $config = Promulger::Config->config; |
132 | my @lists = map { $_->basename} |
133 | grep { -f } dir($config->{list_home})->children; |
134 | s/\.list//g for @lists; |
135 | return @lists; |
136 | } |
137 | |
21baaef0 |
138 | 'http://mitpress.mit.edu/sicp/'; |