113 lines
3.5 KiB
Perl
113 lines
3.5 KiB
Perl
package DDG::Goodie::FedEx;
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# ABSTRACT: Track a package through FedEx
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use strict;
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use DDG::Goodie;
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zci is_cached => 1;
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zci answer_type => "fedex";
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# Regex for fedex.
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my $fedex_qr = qr/fed(?:eral|)ex(?:press|)/io;
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my $tracking_qr = qr/package|track(?:ing|)|num(?:ber|)|\#/i;
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triggers query_nowhitespace_nodash => qr/
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^$fedex_qr.*?(?<the_number>[\d]{9,})$|
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^(?<the_number>[\d]{9,}).*?$fedex_qr$|
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^(?:$tracking_qr|$fedex_qr|)*?(?<extra_numbers>\d*?)(?<to_checksum>[\d]{15})(?:$tracking_qr|$fedex_qr|)*$|
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^(?:$tracking_qr|$fedex_qr|)*?(?<extra_numbers>\d*?)(?<to_checksum>[\d]{12})(?:$tracking_qr|$fedex_qr|)*$
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/xio;
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# Fedex package tracking.
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#
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# For detailed specification:
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# http://images.fedex.com/us/solutions/ppe/FedEx_Ground_Label_Layout_Specification.pdf
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#
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# For brief description see:
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# http://answers.google.com/answers/main?cmd=threadview&id=207899
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#
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handle query_nowhitespace_nodash => sub {
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# If a Fedex package number (2 for exclusively).
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my $is_fedex = 0;
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# Tracking number.
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my $package_number = '';
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# Exclusive trigger.
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if ($+{the_number}) {
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$package_number = $+{the_number};
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$is_fedex = 2;
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# No exclusive trigger, do checksum.
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# Since the package numbers are just numbers,
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# we are more strict in regex (e.g. than UPS).
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# 15 has to be before 12 or it will block.
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}
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elsif ($+{to_checksum}) {
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my $package_beg = $+{extra_numbers};
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$package_number = $+{to_checksum};
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my $checksum = -1;
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my @chars = split( //, $package_number );
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my $length = scalar(@chars);
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my $char_count = 0;
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my $sum = 0;
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# Ground.
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if ( $length == 15 ) {
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my $odd_sum = 0;
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my $even_sum = 0;
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foreach my $char ( reverse @chars ) {
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$char_count++;
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# Skip check digit.
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next if $char_count == 1;
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if ( $char_count % 2 == 0 ) {
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$even_sum += $char;
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}
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else {
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$odd_sum += $char;
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}
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}
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$even_sum *= 3;
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if ( ( $odd_sum + $even_sum ) > 0 ) {
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$checksum = ( $odd_sum + $even_sum ) % 10;
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$checksum = 10 - $checksum if $checksum;
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}
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}
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else {
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foreach my $char (@chars) {
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if ( $char_count % 3 == 0 ) {
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$sum += $char * 3;
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}
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elsif ( $char_count % 3 == 1 ) {
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$sum += $char * 1;
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}
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else {
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$sum += $char * 7;
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}
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$char_count++;
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last if $char_count == 11;
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}
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$checksum = ( $sum % 11 ) % 10 if $sum;
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}
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if (($length == 15 && $checksum eq $chars[-1]) || ($length != 15 && $checksum eq $chars[11])) {
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$is_fedex = 1;
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$package_number = qq($package_beg$package_number) if $package_beg;
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}
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}
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if ($is_fedex) {
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return $package_number, heading => 'FedEx Shipment Tracking', html => qq(Track this shipment at <a href="https://www.fedex.com/apps/fedextrack/?tracknumbers=$package_number&action=track">FedEx</a>.);
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}
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return;
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};
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1;
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