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103 lines
3.7 KiB
Perl
103 lines
3.7 KiB
Perl
# File: GoogleSearch.pm
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#
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# Purpose: Google CustomSearch API. You'll need to configure an api-key and
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# a custom-search context. URLs to instructions are provided by the command.
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# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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package PBot::Plugin::GoogleSearch;
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use parent 'PBot::Plugin::Base';
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use PBot::Imports;
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use WWW::Google::CustomSearch;
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use HTML::Entities;
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sub initialize {
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my ($self, %conf) = @_;
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$self->{pbot}->{registry}->add_default('text', 'googlesearch', 'api_key', '');
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$self->{pbot}->{registry}->add_default('text', 'googlesearch', 'context', '');
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$self->{pbot}->{registry}->set_default('googlesearch', 'api_key', 'private', 1);
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$self->{pbot}->{registry}->set_default('googlesearch', 'context', 'private', 1);
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$self->{pbot}->{commands}->register(sub { $self->cmd_googlesearch(@_) }, 'google', 0);
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}
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sub unload {
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my $self = shift;
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$self->{pbot}->{commands}->unregister('google');
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}
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sub cmd_googlesearch {
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my ($self, $context) = @_;
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return "Usage: google [number of results] query\n" if not length $context->{arguments};
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my $matches = 1;
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$matches = $1 if $context->{arguments} =~ s/^-n\s+([0-9]+)\s*//;
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my $api_key = $self->{pbot}->{registry}->get_value('googlesearch', 'api_key'); # https://developers.google.com/custom-search/v1/overview
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my $cx = $self->{pbot}->{registry}->get_value('googlesearch', 'context'); # https://cse.google.com/all
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if (not length $api_key) {
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return "$context->{nick}: Registry item googlesearch.api_key is not set. See https://developers.google.com/custom-search/v1/overview to get an API key.";
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}
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if (not length $cx) { return "$context->{nick}: Registry item googlesearch.context is not set. See https://cse.google.com/all to set up a context."; }
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my $engine = WWW::Google::CustomSearch->new(api_key => $api_key, cx => $cx, quotaUser => $context->{hostmask});
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if ($context->{arguments} =~ m/(.*)\s+vs\s+(.*)/i) {
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my ($a, $b) = ($1, $2);
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my $result1 = $engine->search("\"$a\" -\"$b\"");
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my $result2 = $engine->search("\"$b\" -\"$a\"");
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if (not defined $result1 or not defined $result1->items or not @{$result1->items}) { return "$context->{nick}: No results for $a"; }
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if (not defined $result2 or not defined $result2->items or not @{$result2->items}) { return "$context->{nick}: No results for $b"; }
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my $title1 = $result1->items->[0]->title;
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my $title2 = $result2->items->[0]->title;
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utf8::decode $title1;
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utf8::decode $title2;
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return
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"$context->{nick}: $a: ("
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. $result1->formattedTotalResults . ") "
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. decode_entities($title1) . " <"
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. $result1->items->[0]->link
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. "> VS $b: ("
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. $result2->formattedTotalResults . ") "
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. decode_entities($title2) . " <"
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. $result2->items->[0]->link . ">";
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}
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my $result = eval { $engine->search($context->{arguments}) };
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if ($@) {
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my $error = $@;
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$error =~ s/^WWW::Google::CustomSearch::search\(\): /google: /;
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$error =~ s/file .*?$//;
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$error =~ s/Missing required arguments: totalResults.*/No results./;
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return $error;
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}
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if (not defined $result or not defined $result->items or not @{$result->items}) { return "$context->{nick}: No results found"; }
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my $output = "$context->{nick}: (" . $result->formattedTotalResults . " results) ";
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my $comma = "";
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foreach my $item (@{$result->items}) {
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my $title = $item->title;
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utf8::decode $title;
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$output .= $comma . decode_entities($title) . ': <' . $item->link . ">";
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$comma = " -- ";
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last if --$matches <= 0;
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}
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return $output;
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}
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1;
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