97 lines
2.9 KiB
Perl
97 lines
2.9 KiB
Perl
package App::WerePaste;
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use strict;
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use warnings;
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use App::WerePaste::Util::PygmentsBridge qw/:all/;
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use Dancer2;
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use Dancer2::Plugin::DBIC qw/schema/;
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use DateTime;
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use Data::UUID;
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my $lastexpunge = 0;
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sub DeploySchema {
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# need to find a way to handle this that doesn't shit errors everywhere
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eval {schema->deploy};
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}
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sub DateTimeToQueryable {
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my $dt = DateTime->now(time_zone => config->{tz});
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$dt->add(@_) if scalar @_;
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return schema->storage->datetime_parser->format_datetime($dt);
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}
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sub ExpirationToDate {
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my $expire = shift;
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$expire = $expire ? { split ':', $expire } : undef;
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return undef if $expire and $expire->{never};
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return DateTimeToQueryable(%{ $expire || config->{default_expire} });
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}
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sub GetUUID {
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my $uuid = Data::UUID->new->create_str;
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$uuid =~ s/\-//g;
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return lc $uuid;
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}
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sub CheckExpired {
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return unless time > ($lastexpunge+900); #expunge once every 15 mins
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$lastexpunge = time;
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schema->resultset('Paste')->search({ expiration => [undef, { '<' => DateTimeToQueryable() }]})->delete_all;
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}
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sub ValidateParams {
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my $params = shift;
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if($params->{id}) {
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return undef unless lc($params->{id}) =~ /^[a-f0-9]*$/;
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return 1;
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}
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return undef unless $params->{code};
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return undef unless $params->{title} =~ /^[a-zA-Z0-9\.\-_ @\(\)]{0,255}$/;
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return undef unless $params->{lang} =~ /^[a-z0-9\.\-\+# ]{0,40}$/;
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return undef unless $params->{expiration} =~ /^([a-z]+:[0-9]+)(,[a-z]+:[0-9]+)*$/ or not $params->{expiration};
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return 1;
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}
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sub GetPaste {
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my $id = shift;
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return schema->resultset('Paste')->single({ id => $id }) or return undef;
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}
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sub SubmitPaste {
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my $params = shift;
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my ($lang,$html) = PygmentsHighlight(lang => $params->{lang}, code => $params->{code});
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my $id = GetUUID();
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my $result = schema->resultset('Paste')->create({
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id => $id,
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title => $params->{title},
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language => $lang,
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expiration => ExpirationToDate($params->{expiration}),
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code => $params->{code},
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html => $html,
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}) or return undef;
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return $id;
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}
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sub ValidateAndGet {
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my $params = shift;
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ValidateParams($params) or return undef;
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return GetPaste(lc $params->{id}) or return undef;
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}
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# Startup
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DeploySchema();
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# Hooks
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hook 'before' => sub { CheckExpired(); };
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# Routes
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#get
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get '/' => sub { template 'index.tt'; };
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get '/:id' => sub { my $paste=ValidateAndGet(scalar params('route')) or pass; template 'show.tt', { paste => $paste };};
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get '/:id/copy' => sub { my $paste=ValidateAndGet(scalar params('route')) or pass; template 'index.tt', { paste => $paste }; };
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get '/:id/raw' => sub { my $paste=ValidateAndGet(scalar params('route')) or pass; content_type 'text/plain'; return $paste->code; };
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#post
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post '/' => sub {
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my $p = params('body');
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ValidateParams($p) or return send_error('Submitted paste is not valid. Check your post title and language, and try again.',400);
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my $id = SubmitPaste($p) or return redirect '/503.html';
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return redirect "/$id";
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};
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#default
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any qr/.*/ => sub { return send_error('Page gone',404); };
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1;
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__END__
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