mirror of
https://github.com/pragma-/pbot.git
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976bfcb5e7
Move all command subroutines closer to top of source file Do not send WHO to non-chanop channels Minor misc bugfixes and improvements
262 lines
10 KiB
Perl
262 lines
10 KiB
Perl
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package PBot::Capabilities;
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use parent 'PBot::Class';
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# purpose: provides interface to set/remove/modify/query user capabilities.
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#
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# Examples:
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#
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use warnings; use strict;
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use feature 'unicode_strings';
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use feature 'switch';
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no if $] >= 5.018, warnings => "experimental::smartmatch";
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sub initialize {
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my ($self, %conf) = @_;
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my $filename = $conf{filename} // $self->{pbot}->{registry}->get_value('general', 'data_dir') . '/capabilities';
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$self->{caps} = PBot::HashObject->new(name => 'Capabilities', filename => $filename, pbot => $self->{pbot});
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$self->{caps}->load;
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# 'cap' command registered in PBot.pm because $self->{pbot}->{commands} is not yet loaded.
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# add some capabilities used in this file
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$self->add('can-modify-capabilities', undef, 1);
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$self->add('can-group-capabilities', undef, 1);
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$self->add('can-ungroup-capabilities', undef, 1);
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# add some useful capabilities
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$self->add('is-whitelisted', undef, 1);
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}
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sub cmd_cap {
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my ($self, $context) = @_;
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my $command = $self->{pbot}->{interpreter}->shift_arg($context->{arglist});
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my $result;
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given ($command) {
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when ('list') {
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my $cap = $self->{pbot}->{interpreter}->shift_arg($context->{arglist});
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return $self->list($cap);
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}
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when ('whohas') {
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my $cap = $self->{pbot}->{interpreter}->shift_arg($context->{arglist});
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return "Usage: cap whohas <capability>; Lists all users who have <capability>" if not defined $cap;
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return "No such capability $cap." if not $self->exists($cap);
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my $result = "Users with capability $cap: ";
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my $users = $self->{pbot}->{users}->{users};
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my @matches;
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foreach my $name (sort $users->get_keys) {
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my $u = $users->get_data($name);
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push @matches, $users->get_key_name($name) if $self->userhas($u, $cap);
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}
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if (@matches) {
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$result .= join(', ', @matches);
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} else {
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$result .= 'nobody';
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}
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return $result;
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}
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when ('userhas') {
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my ($name, $cap) = $self->{pbot}->{interpreter}->split_args($context->{arglist}, 2);
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return "Usage: cap userhas <username> [capability]; Lists capabilities belonging to <user>" if not defined $name;
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$cap = lc $cap if defined $cap;
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my $u = $self->{pbot}->{users}->{users}->get_data($name);
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if (not defined $u) {
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return "No such user $name.";
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}
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$name = $self->{pbot}->{users}->{users}->get_key_name($name);
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if (defined $cap) {
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return "Try again. No such capability $cap." if not $self->exists($cap);
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if ($self->userhas($u, $cap)) { return "Yes. User $name has capability $cap."; }
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else { return "No. User $name does not have capability $cap."; }
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} else {
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my $result = "User $name has capabilities: ";
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my @groups;
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my @single;
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foreach my $key (sort keys %{$u}) {
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next if $key eq '_name';
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next if not $self->exists($key);
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my $count = $self->{caps}->get_keys;
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if ($count > 0) { push @groups, "$key ($count cap" . ($count == 1 ? '' : 's') . ")"; }
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else { push @single, $key; }
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}
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if (@groups or @single) { $result .= join ', ', @groups, @single; }
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else { $result = "User $name has no capabilities."; }
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return $result;
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}
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}
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when ('group') {
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my ($cap, $subcaps) = $self->{pbot}->{interpreter}->split_args($context->{arglist}, 2);
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return "Usage: cap group <existing or new capability> <existing capabilities...>" if not defined $cap or not defined $subcaps;
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my $u = $self->{pbot}->{users}->loggedin($context->{from}, $context->{hostmask});
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return "You must be logged into your user account to group capabilities together." if not defined $u;
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return "You must have the can-group-capabilities capability to group capabilities together." if not $self->userhas($u, 'can-group-capabilities');
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my @caps = split /\s+|,/, $subcaps;
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foreach my $c (@caps) {
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return "No such capability $c." if not $self->exists($c);
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return "You cannot group a capability with itself." if lc $cap eq lc $c;
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$self->add($cap, $c);
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}
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if (@caps > 1) { return "Capabilities " . join(', ', @caps) . " added to the $cap capability group."; }
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else { return "Capability $subcaps added to the $cap capability group."; }
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}
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when ('ungroup') {
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my ($cap, $subcaps) = $self->{pbot}->{interpreter}->split_args($context->{arglist}, 2);
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return "Usage: cap ungroup <existing capability group> <grouped capabilities...>" if not defined $cap or not defined $subcaps;
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return "No such capability $cap." if not $self->exists($cap);
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my $u = $self->{pbot}->{users}->loggedin($context->{from}, $context->{hostmask});
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return "You must be logged into your user account to remove capabilities from groups." if not defined $u;
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return "You must have the can-ungroup-capabilities capability to remove capabilities from groups." if not $self->userhas($u, 'can-ungroup-capabilities');
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my @caps = split /\s+|,/, $subcaps;
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foreach my $c (@caps) {
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return "No such capability $c." if not $self->exists($c);
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return "Capability $c does not belong to the $cap capability group." if not $self->has($cap, $c);
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$self->remove($cap, $c);
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}
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if (@caps > 1) { return "Capabilities " . join(', ', @caps) . " removed from the $cap capability group."; }
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else { return "Capability $subcaps removed from the $cap capability group."; }
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}
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default {
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$result =
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"Usage: cap list [capability] | cap group <existing or new capability group> <existing capabilities...> | cap ungroup <existing capability group> <grouped capabilities...> | cap userhas <user> [capability] | cap whohas <capability>";
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}
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}
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return $result;
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}
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sub has {
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my ($self, $cap, $subcap, $depth) = @_;
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my $cap_data = $self->{caps}->get_data($cap);
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return 0 if not defined $cap_data;
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if ($cap eq $subcap) {
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return 0 if exists $cap_data->{$subcap} and not $cap_data->{$subcap};
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return 1;
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}
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$depth //= 10;
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if (--$depth <= 0) {
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$self->{pbot}->{logger}->log("Max recursion reached for PBot::Capabilities->has($cap, $subcap)\n");
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return 0;
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}
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foreach my $c ($self->{caps}->get_keys($cap)) {
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return 1 if $c eq $subcap and $cap_data->{$c};
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return 1 if $self->has($c, $subcap, $depth);
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}
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return 0;
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}
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sub userhas {
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my ($self, $user, $cap) = @_;
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return 0 if not defined $user;
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return 1 if $user->{$cap};
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foreach my $key (keys %$user) {
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next if $key eq '_name';
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next if not $user->{$key};
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return 1 if $self->has($key, $cap);
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}
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return 0;
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}
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sub exists {
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my ($self, $cap) = @_;
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$cap = lc $cap;
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foreach my $c ($self->{caps}->get_keys) {
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return 1 if $c eq $cap;
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foreach my $sub_cap ($self->{caps}->get_keys($c)) {
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return 1 if $sub_cap eq $cap;
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}
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}
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return 0;
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}
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sub add {
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my ($self, $cap, $subcap, $dontsave) = @_;
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if (not defined $subcap) {
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if (not $self->{caps}->exists($cap)) {
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$self->{caps}->add($cap, {}, $dontsave);
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}
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} else {
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if ($self->{caps}->exists($cap)) {
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$self->{caps}->set($cap, $subcap, 1, $dontsave);
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} else {
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$self->{caps}->add($cap, { $subcap => 1 }, $dontsave);
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}
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}
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}
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sub remove {
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my ($self, $cap, $subcap) = @_;
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$cap = lc $cap;
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if (not defined $subcap) {
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foreach my $c ($self->{caps}->get_keys) {
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foreach my $sub_cap ($self->{caps}->get_keys($c)) {
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$self->{caps}->remove($c, $sub_cap, 1) if $sub_cap eq $cap;
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}
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$self->{caps}->remove($c, undef, 1) if $c eq $cap;
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}
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} else {
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$self->{caps}->remove($cap, $subcap, 1) if $self->{caps}->exists($cap);
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}
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$self->{caps}->save;
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}
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sub rebuild_botowner_capabilities {
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my ($self) = @_;
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$self->{caps}->remove('botowner', undef, 1);
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foreach my $cap ($self->{caps}->get_keys) { $self->add('botowner', $cap, 1); }
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}
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sub list {
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my ($self, $capability) = @_;
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return "No such capability $capability." if defined $capability and not $self->{caps}->exists($capability);
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my @caps;
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my @groups;
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my @standalones;
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my $result;
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if (not defined $capability) {
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@caps = sort $self->{caps}->get_keys;
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$result = 'Capabilities: ';
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} else {
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@caps = sort $self->{caps}->get_keys($capability);
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return "Capability $capability has no grouped capabilities." if not @caps;
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$result = "Grouped capabilities for $capability: ";
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}
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# first list all capabilities that have sub-capabilities (i.e. grouped capabilities)
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# then list stand-alone capabilities
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foreach my $cap (@caps) {
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my $count = $self->{caps}->get_keys($cap);
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if ($count > 0) { push @groups, "$cap ($count cap" . ($count == 1 ? '' : 's') . ")" if $count; }
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else { push @standalones, $cap; }
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}
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$result .= join ', ', @groups, @standalones;
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return $result;
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}
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1;
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