mirror of
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001f2024c4
Uses POSIX shell parameter expansion syntax.
<pragma-> !factadd cookie /me gives a cookie to ${args:-nobody. What a shame}!
<PBot> cookie added to the global channel.
<pragma-> !cookie Bob
* PBot gives a cookie to Bob!
<pragma-> !cookie
* PBot gives a cookie to nobody. What a shame!
<pragma-> !factadd sum /call calc $arg[0]:-1 + $arg[1]:-2
<PBot> sum added to the global channel.
<pragma-> !sum
<PBot> 1 + 2 = 3
<pragma-> !sum 3
<PBot> 3 + 2 = 5
<pragma-> !sum 4 6
<PBot> 4 + 6 = 10
550 lines
23 KiB
Perl
550 lines
23 KiB
Perl
# File: Interpreter.pm
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#
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# Purpose: Provides functionality for factoids.
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# SPDX-FileCopyrightText: 2005-2023 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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package PBot::Core::Factoids::Interpreter;
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use parent 'PBot::Core::Class';
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use PBot::Imports;
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use Time::HiRes qw(gettimeofday);
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use Time::Duration qw(duration);
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sub initialize {}
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# main entry point for PBot::Core::Interpreter to interpret a factoid command
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sub interpreter($self, $context) {
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# trace context and context's contents
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if ($self->{pbot}->{registry}->get_value('general', 'debugcontext')) {
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use Data::Dumper;
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$Data::Dumper::Sortkeys = 1;
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$Data::Dumper::Indent = 2;
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$self->{pbot}->{logger}->log("Factoids::interpreter\n");
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$self->{pbot}->{logger}->log(Dumper $context);
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}
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if (not length $context->{keyword}) {
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$self->{pbot}->{logger}->log("Factoids: interpreter: no keyword.\n");
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return;
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}
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if ($context->{interpret_depth} > $self->{pbot}->{registry}->get_value('interpreter', 'max_recursion')) {
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$self->{pbot}->{logger}->log("Factoids: interpreter: max-recursion.\n");
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return;
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}
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my $strictnamespace = $self->{pbot}->{registry}->get_value($context->{from}, 'strictnamespace');
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$strictnamespace //= $self->{pbot}->{registry}->get_value('general', 'strictnamespace');
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# factoid > nick redirection
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my $nick_regex = $self->{pbot}->{registry}->get_value('regex', 'nickname');
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if ($context->{arguments} =~ s/> ($nick_regex)$//) {
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my $rcpt = $1;
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if ($self->{pbot}->{nicklist}->is_present($context->{from}, $rcpt)) {
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$context->{nickprefix} = $rcpt;
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$context->{nickprefix_forced} = 1;
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} else {
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$context->{arguments} .= "> $rcpt";
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}
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}
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my $original_keyword = $context->{keyword};
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# search for exact match of factoid
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my ($channel, $keyword) =
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$self->{pbot}->{factoids}->{data}->find(
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$context->{ref_from} ? $context->{ref_from} : $context->{from},
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$context->{keyword},
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arguments => $context->{arguments},
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exact_channel => 1,
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exact_trigger => 2,
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);
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# determine if we prepend [channel] to factoid output
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if (defined $channel and $channel ne '.*'
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and $channel ne lc $context->{from})
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{
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$context->{ref_from} = $channel;
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}
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elsif (not defined $context->{ref_from}
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or $context->{ref_from} eq '.*'
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or $context->{ref_from} eq $context->{from})
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{
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$context->{ref_from} = '';
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}
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# if no match found, attempt to call factoid from another channel if it exists there
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if (not defined $keyword) {
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my $string = "$original_keyword $context->{arguments}";
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my @chanlist = ();
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my ($fwd_chan, $fwd_trig);
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unless ($strictnamespace) {
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# build list of which channels contain the keyword, keeping track of the last one and count
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foreach my $factoid ($self->{pbot}->{factoids}->{data}->{storage}->get_all("index2 = $original_keyword", 'index1', 'type')) {
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next if $factoid->{type} ne 'text' and $factoid->{type} ne 'applet';
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push @chanlist, $self->{pbot}->{factoids}->{data}->{storage}->get_data($factoid->{index1}, '_name');
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$fwd_chan = $factoid->{index1};
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$fwd_trig = $original_keyword;
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}
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}
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# if multiple channels have this keyword, then ask user to disambiguate
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if (@chanlist> 1) {
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# but only if the bot is explicitly invoked
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if (not $context->{addressed}) {
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$self->{pbot}->{logger}->log("Factoid found in multiple channels; disregarding disambiguation because bot not explicitly invoked\n");
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return '';
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}
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return "Factoid `$original_keyword` exists in " . join(', ', @chanlist) . "; use `fact <channel> $original_keyword` to choose one.";
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}
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# if there's just one other channel that has this keyword, trigger that instance
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elsif (@chanlist == 1) {
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$self->{pbot}->{logger}->log("Found '$original_keyword' as '$fwd_trig' in [$fwd_chan]\n");
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$context->{keyword} = $fwd_trig;
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$context->{interpret_depth}++;
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$context->{ref_from} = $fwd_chan;
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return $self->interpreter($context);
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}
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# keyword still not found, try regex factoids
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($channel, $keyword) =
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$self->{pbot}->{factoids}->{data}->find(
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$context->{ref_from} ? $context->{ref_from} : $context->{from},
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$context->{keyword},
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arguments => $context->{arguments},
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exact_channel => 1,
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);
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# no such keyword, display similiar matches for all channels
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if (not defined $keyword) {
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# but only if the bot is explicitly invoked
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if (not $context->{addressed}) {
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$self->{pbot}->{logger}->log("No factoid found; disregarding error message because bot not explicitly invoked\n");
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return '';
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}
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my $namespace = $context->{from};
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$namespace = '.*' if $namespace !~ /^#/;
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my $namespace_regex = $namespace;
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if ($strictnamespace) { $namespace_regex = "(?:" . (quotemeta $namespace) . '|\\.\\*)'; }
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$context->{arguments} = "$original_keyword -channel $namespace_regex";
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my $matches = $self->{pbot}->{commands}->{modules}->{Factoids}->cmd_factfind($context);
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# found factfind matches
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if ($matches !~ m/^No factoids/) {
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return "No such factoid '$original_keyword'; $matches";
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}
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# otherwise find levenshtein closest matches
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$matches = $self->{pbot}->{factoids}->{data}->{storage}->levenshtein_matches($namespace, lc $original_keyword, 0.50, $strictnamespace);
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# if a non-nick argument was supplied, e.g., a sentence using the bot's nick, /msg the error to the caller
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if (length $context->{arguments} and not $self->{pbot}->{nicklist}->is_present($context->{from}, $context->{arguments})) {
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$context->{send_msg_to_caller} = 1;
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}
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# /msg the caller if nothing similiar was found
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$context->{send_msg_to_caller} = 1 if $matches eq 'none';
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$context->{send_msg_to_caller} = 1 if $context->{embedded};
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my $msg_caller = '';
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$msg_caller = "/msg $context->{nick} " if $context->{send_msg_to_caller};
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my $ref_from = $context->{ref_from} ? "[$context->{ref_from}] " : '';
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if ($matches eq 'none') {
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return $msg_caller . $ref_from . "No such factoid '$original_keyword'; no similar matches.";
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} else {
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return $msg_caller . $ref_from . "No such factoid '$original_keyword'; did you mean $matches?";
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}
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}
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}
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my $channel_name = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, '_name');
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my $trigger_name = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, '_name');
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$channel_name = 'global' if $channel_name eq '.*';
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$trigger_name = "\"$trigger_name\"" if $trigger_name =~ / /;
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$context->{keyword} = $keyword;
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$context->{trigger} = $keyword;
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$context->{channel} = $channel;
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$context->{original_keyword} = $original_keyword;
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$context->{channel_name} = $channel_name;
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$context->{trigger_name} = $trigger_name;
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$context->{factoid} = 1;
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if ($context->{embedded} and $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'noembed')) {
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$self->{pbot}->{logger}->log("Factoids: interpreter: ignoring $channel.$keyword due to noembed.\n");
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return;
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}
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if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'locked_to_channel')) {
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if ($context->{ref_from} ne '') { # called from another channel
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return "$trigger_name may be invoked only in $context->{ref_from}.";
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}
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}
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$context->{locked} = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'locked') // 0;
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# rate-limiting
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if ($context->{interpret_depth} <= 1
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and $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'last_referenced_in') eq $context->{from})
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{
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my $ratelimit = $self->{pbot}->{registry}->get_value($context->{from}, 'ratelimit_override');
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$ratelimit //= $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'rate_limit');
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if (gettimeofday - $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'last_referenced_on') < $ratelimit) {
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my $ref_from = $context->{ref_from} ? "[$context->{ref_from}] " : '';
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unless ($self->{pbot}->{users}->loggedin_admin($channel, "$context->{nick}!$context->{user}\@$context->{host}")) {
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return "/msg $context->{nick} $ref_from'$trigger_name' is rate-limited; try again in "
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. duration($ratelimit - int(gettimeofday - $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'last_referenced_on'))) . "."
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}
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}
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}
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# update factoid reference-related metadata
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my $ref_count = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'ref_count');
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my $update_data = {
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ref_count => ++$ref_count,
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ref_user => "$context->{nick}!$context->{user}\@$context->{host}",
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last_referenced_on => scalar gettimeofday,
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last_referenced_in => $context->{from} || 'stdin',
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};
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$self->{pbot}->{factoids}->{data}->{storage}->add($channel, $keyword, $update_data, 1);
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# show usage if usage metadata exists and context has no arguments
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if ($self->{pbot}->{factoids}->{data}->{storage}->exists($channel, $keyword, 'usage')
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and not length $context->{arguments})
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{
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my $usage = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'usage');
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$usage =~ s/(?<!\\)\$0|(?<!\\)\$\{0\}/$trigger_name/g;
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$context->{alldone} = 1;
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return $usage;
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}
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# turn on context->{use_output_queue}?
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if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'use_output_queue')) {
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$context->{use_output_queue} = 1;
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}
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# turn on context->{condense-whitespace}?
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if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'condense-whitespace')) {
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$context->{'condense-whitespace'} = 1;
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}
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# tell PBot::Core::Interpreter to prepend caller's nick to output
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if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'add_nick')) {
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$context->{add_nick} = 1;
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}
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# factoid action
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my $action;
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# action_with_args or regular action?
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if (length $context->{arguments} and $self->{pbot}->{factoids}->{data}->{storage}->exists($channel, $keyword, 'action_with_args')) {
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$action = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'action_with_args');
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} else {
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$action = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'action');
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}
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# fork factoid if background-process is enabled
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if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'background-process')) {
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my $timeout = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'process-timeout');
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$timeout //= $self->{pbot}->{registry}->get_value('processmanager', 'default_timeout');
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$self->{pbot}->{process_manager}->execute_process(
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$context,
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sub { $context->{result} = $self->handle_action($context, $action); },
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$timeout,
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);
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return '';
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} else {
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return $self->handle_action($context, $action);
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}
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}
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sub handle_action($self, $context, $action) {
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# trace context and context's contents
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if ($self->{pbot}->{registry}->get_value('general', 'debugcontext')) {
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use Data::Dumper;
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$Data::Dumper::Sortkeys = 1;
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$Data::Dumper::Indent = 2;
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$self->{pbot}->{logger}->log("Factoids::handle_action [$action]\n");
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$self->{pbot}->{logger}->log(Dumper $context);
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}
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if (not length $action) {
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$self->{pbot}->{logger}->log("Factoids: handle_action: no action.\n");
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return '';
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}
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my ($channel, $keyword) = ($context->{channel}, $context->{trigger});
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my ($channel_name, $trigger_name) = ($context->{channel_name}, $context->{trigger_name});
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my $ref_from = '';
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unless ($context->{no_ref_from} or $context->{pipe} or $context->{subcmd}) {
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$ref_from = $context->{ref_from} ? "[$context->{ref_from}] " : '';
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}
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my $interpolate = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'interpolate');
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if (defined $interpolate and not $interpolate) {
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$context->{interpolate} = 0;
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} else {
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$context->{interpolate} = 1;
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}
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if ($context->{interpolate}) {
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my ($root_channel, $root_keyword) = $self->{pbot}->{factoids}->{data}->find(
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$context->{ref_from} ? $context->{ref_from} : $context->{from},
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$context->{root_keyword},
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arguments => $context->{arguments},
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exact_channel => 1,
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);
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if (not defined $root_channel or not defined $root_keyword) {
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$root_channel = $channel;
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$root_keyword = $keyword;
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}
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if (not length $context->{keyword_override}
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and length $self->{pbot}->{factoids}->{data}->{storage}->get_data($root_channel, $root_keyword, 'keyword_override'))
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{
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$context->{keyword_override} = $self->{pbot}->{factoids}->{data}->{storage}->get_data($root_channel, $root_keyword, 'keyword_override');
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}
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$action = $self->{pbot}->{factoids}->{variables}->expand_factoid_vars($context, $action);
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}
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# handle arguments
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if (length $context->{arguments}) {
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# arguments supplied
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if ($action =~ m/\$\{?args/ or $action =~ m/\$\{?arg\[/) {
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# factoid has $args, replace them
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if ($context->{interpolate}) {
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$action = $self->{pbot}->{factoids}->{variables}->expand_action_arguments($context, $action, $context->{arguments}, $context->{nick});
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}
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$context->{arguments} = '';
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$context->{original_arguments} = '';
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$context->{nickprefix_disabled} = 1;
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} else {
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# set nickprefix if args is a present nick and factoid action doesn't have $nick or $args
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if (!$context->{nickprefix_disabled} && $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'type') eq 'text') {
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my $target = $self->{pbot}->{nicklist}->is_present_similar($context->{from}, $context->{arguments});
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if ($target and $action !~ /\$\{?(?:nick|args)\b/) {
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my $add_nick = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'add_nick');
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unless (defined $add_nick && $add_nick == 0) {
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$context->{nickprefix} = $target unless $context->{nickprefix_forced};
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}
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}
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}
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}
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} else {
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# no arguments supplied
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if ($self->{pbot}->{factoids}->{data}->{storage}->exists($channel, $keyword, 'usage')) {
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# factoid has a usage message, show it
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$action = "/say " . $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'usage');
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$action =~ s/(?<!\\)\$0|(?<!\\)\$\{0\}/$trigger_name/g;
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$context->{alldone} = 1;
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} else {
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if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'allow_empty_args')) {
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$action = $self->{pbot}->{factoids}->{variables}->expand_action_arguments($context, $action, undef, '');
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} else {
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$action = $self->{pbot}->{factoids}->{variables}->expand_action_arguments($context, $action, undef, $context->{nick});
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}
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}
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$context->{nickprefix_disabled} = 0;
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}
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$self->{pbot}->{logger}->log("$context->{from}: $context->{nick}!$context->{user}\@$context->{host}: $trigger_name: action: \"$action\"\n");
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my $enabled = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'enabled');
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if (defined $enabled and $enabled == 0) {
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$self->{pbot}->{logger}->log("$trigger_name disabled.\n");
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return "${ref_from}$trigger_name is disabled.";
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}
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# Check if it's an alias
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if ($action =~ /^\/call\s+(.*)$/msi) {
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my $command = $1;
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$command =~ s/\n$//;
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unless ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'require_explicit_args')) {
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my $args = $context->{arguments};
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$command .= " $args" if length $args and not $context->{special} eq 'code-factoid';
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$context->{arguments} = '';
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}
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unless ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'no_keyword_override')) {
|
|
if ($command =~ s/\s*--keyword-override=([^ ]+)\s*//) { $context->{keyword_override} = $1; }
|
|
}
|
|
|
|
$context->{command} = $command;
|
|
$context->{aliased} = 1;
|
|
|
|
$self->{pbot}->{logger}->log("$context->{from}: $context->{nick}!$context->{user}\@$context->{host}: $trigger_name aliased to: $command\n");
|
|
|
|
if (defined $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'cap-override')) {
|
|
if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'locked')) {
|
|
$self->{pbot}->{logger}->log("Capability override set to " . $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'cap-override') . "\n");
|
|
$context->{'cap-override'} = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'cap-override');
|
|
} else {
|
|
$self->{pbot}->{logger}->log("Ignoring cap-override of " . $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'cap-override') . " on unlocked factoid\n");
|
|
}
|
|
}
|
|
|
|
return $self->{pbot}->{interpreter}->interpret($context);
|
|
}
|
|
|
|
if ($context->{interpolate}) {
|
|
my ($root_channel, $root_keyword) = $self->{pbot}->{factoids}->{data}->find(
|
|
$context->{ref_from} ? $context->{ref_from} : $context->{from},
|
|
$context->{root_keyword},
|
|
arguments => $context->{arguments},
|
|
exact_channel => 1,
|
|
);
|
|
|
|
if (not defined $root_channel or not defined $root_keyword) {
|
|
$root_channel = $channel;
|
|
$root_keyword = $keyword;
|
|
}
|
|
|
|
if (not length $context->{keyword_override}
|
|
and length $self->{pbot}->{factoids}->{data}->{storage}->get_data($root_channel, $root_keyword, 'keyword_override'))
|
|
{
|
|
$context->{keyword_override} = $self->{pbot}->{factoids}->{data}->{storage}->get_data($root_channel, $root_keyword, 'keyword_override');
|
|
}
|
|
|
|
$action = $self->{pbot}->{factoids}->{variables}->expand_factoid_vars($context, $action);
|
|
|
|
if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'allow_empty_args')) {
|
|
$action = $self->{pbot}->{factoids}->{variables}->expand_action_arguments($context, $action, $context->{arguments}, '');
|
|
} else {
|
|
$action = $self->{pbot}->{factoids}->{variables}->expand_action_arguments($context, $action, $context->{arguments}, $context->{nick});
|
|
}
|
|
}
|
|
|
|
my $condense_whitespace = $self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'condense-whitespace');
|
|
|
|
if (defined $condense_whitespace) {
|
|
$context->{'condense-whitespace'} = $condense_whitespace;
|
|
}
|
|
|
|
# action is a code factoid
|
|
if ($action =~ m{^/code\s+([^\s]+)\s+(.+)$}msi) {
|
|
my ($lang, $code) = ($1, $2);
|
|
$context->{lang} = $lang;
|
|
$context->{code} = $code;
|
|
return $self->{pbot}->{factoids}->{code}->execute($context);
|
|
}
|
|
|
|
return $action if $context->{special} eq 'code-factoid';
|
|
|
|
if ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'type') eq 'applet') {
|
|
$context->{root_keyword} = $keyword unless defined $context->{root_keyword};
|
|
$context->{root_channel} = $channel;
|
|
|
|
my $result = $self->{pbot}->{applets}->execute_applet($context);
|
|
|
|
if (defined $result && length $result) {
|
|
return $ref_from . $result;
|
|
} else {
|
|
return $result;
|
|
}
|
|
}
|
|
elsif ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'type') eq 'text') {
|
|
# Don't allow user-custom /msg factoids, unless invoked by admin
|
|
if ($action =~ m/^\/msg/i) {
|
|
if (not $self->{pbot}->{users}->loggedin_admin($context->{from}, $context->{hostmask})) {
|
|
$self->{pbot}->{logger}->log("[ABUSE] Bad factoid (starts with /msg): $action\n");
|
|
return "You must be an admin to use /msg.";
|
|
}
|
|
}
|
|
|
|
if ($ref_from) {
|
|
if ( $action =~ s/^\/say\s+/$ref_from/i
|
|
|| $action =~ s/^\/me\s+(.*)/\/me $1 $ref_from/i
|
|
|| $action =~ s/^\/msg\s+([^ ]+)/\/msg $1 $ref_from/i
|
|
) {
|
|
return $action;
|
|
} else {
|
|
return $ref_from . "$trigger_name is $action";
|
|
}
|
|
} else {
|
|
if ($action =~ m/^\/(?:say|me|msg)/i) {
|
|
return $action;
|
|
} else {
|
|
return "/say $trigger_name is $action";
|
|
}
|
|
}
|
|
}
|
|
elsif ($self->{pbot}->{factoids}->{data}->{storage}->get_data($channel, $keyword, 'type') eq 'regex') {
|
|
my $result = eval {
|
|
my $string = "$context->{original_keyword}" . (length $context->{arguments} ? " $context->{arguments}" : '');
|
|
my $cmd;
|
|
|
|
if ($string =~ m/$keyword/i) {
|
|
$self->{pbot}->{logger}->log("[$string] matches [$keyword] - calling [" . $action . "$']\n");
|
|
$cmd = $action . $';
|
|
my ($a, $b, $c, $d, $e, $f, $g, $h, $i, $before, $after) = ($1, $2, $3, $4, $5, $6, $7, $8, $9, $`, $');
|
|
$cmd =~ s/\$1/$a/g;
|
|
$cmd =~ s/\$2/$b/g;
|
|
$cmd =~ s/\$3/$c/g;
|
|
$cmd =~ s/\$4/$d/g;
|
|
$cmd =~ s/\$5/$e/g;
|
|
$cmd =~ s/\$6/$f/g;
|
|
$cmd =~ s/\$7/$g/g;
|
|
$cmd =~ s/\$8/$h/g;
|
|
$cmd =~ s/\$9/$i/g;
|
|
$cmd =~ s/\$`/$before/g;
|
|
$cmd =~ s/\$'/$after/g;
|
|
$cmd =~ s/^\s+//;
|
|
$cmd =~ s/\s+$//;
|
|
} else {
|
|
$cmd = $action;
|
|
}
|
|
|
|
$context->{command} = $cmd;
|
|
return $self->{pbot}->{interpreter}->interpret($context);
|
|
};
|
|
|
|
if ($@) {
|
|
$self->{pbot}->{logger}->log("Factoids: bad regex: $@\n");
|
|
return '';
|
|
}
|
|
|
|
if (length $result) {
|
|
return $ref_from . $result;
|
|
} else {
|
|
return '';
|
|
}
|
|
} else {
|
|
$self->{pbot}->{logger}->log("$context->{from}: $context->{nick}!$context->{user}\@$context->{host}): bad type for $channel.$keyword\n");
|
|
return "/me blinks. $ref_from";
|
|
}
|
|
}
|
|
|
|
1;
|