X-Git-Url: http://git.freeside.biz/gitweb/?a=blobdiff_plain;f=CreditCard.pm;h=79c7df10b1c36441ecd5d25aa796ef3de2e1bcdd;hb=9e52c36fe18025571dea0b0f8f6db8c11036e7cd;hp=4993f4e285743de174cac5b9c8726614814d266b;hpb=9421e4d70c0fe52bd98366365d38a9b7bf8f982c;p=Business-CreditCard.git diff --git a/CreditCard.pm b/CreditCard.pm index 4993f4e..79c7df1 100644 --- a/CreditCard.pm +++ b/CreditCard.pm @@ -1,11 +1,15 @@ package Business::CreditCard; require Exporter; -use vars qw( @ISA $VERSION $Country ); +use vars qw( @ISA $VERSION @EXPORT @EXPORT_OK %EXPORT_TAGS $Country ); @ISA = qw( Exporter ); -$VERSION = "0.32_01"; +$VERSION = "0.37_01"; + +@EXPORT = qw( cardtype validate generate_last_digit ); +@EXPORT_OK = qw( receipt_cardtype validate_card ); +$EXPORT_TAGS{NEW} = [ qw( validate_card cardtype receipt_cardtype ) ]; $Country = 'US'; @@ -59,11 +63,11 @@ cards are now recognized as "Discover card"). As of 0.30, cardtype() will accept a partial card masked with "x", "X', ".", "*" or "_". Only the first 2-6 digits and the length are significant; -whitespace and dashes are removed. To recognize just Visa, MasterCard and -Amex, you only need the first two digits; to recognize almost all cards -except some Switch cards, you need the first four digits, and to recognize -all cards including the remaining Switch cards, you need the first six -digits. +whitespace and dashes are removed. With two digits, Visa, MasterCard, Discover +and Amex are recognized (versions before 0.36 needed four digits to recognize +all Discover cards). With four digits, almost all cards except some +Switch cards are recognized. With six digits (the full "BIN" or "IIN"), all +cards are recognized. Six digits are also required for receipt_cardtype(). The generate_last_digit() subroutine computes and returns the last digit of the card given the preceding digits. With a 16-digit card, @@ -83,7 +87,7 @@ Credit card issuers have recently been forming agreements to process cards on other networks, in which one type of card is processed as another card type. By default, Business::CreditCard returns the type the card should be treated as -in the US and Canada. You can change this to return the type the card should +in the US. You can change this to return the type the card should be treated as in a different country by setting C<$Business::CreditCard::Country> to your two-letter country code. This is probably what you want to determine if you accept the card, or which @@ -99,44 +103,121 @@ Here are the currently known agreements: =item Most Diner's club is now identified as Discover. (This supercedes the earlier identification of some Diner's club cards as MasterCard inside the US and Canada.) -=item JCB cards in the 3528-3589 range are identified as Discover inside the US and Canada. +=item JCB cards in the 3528-3589 range are identified as Discover inside the US and territories. -=item China Union Pay cards are identified as Discover cards outside China. +=item China Union Pay cards are identified as Discover cards in the US, Mexico and most Caribbean countries. =back -=head1 NOTE ON INTENDED PURPOSE +=head1 RECEIPT REQUIREMENTS + +Discover requires some cards processed on its network to display "PayPal" +on receipts instead of "Discover". The receipt_cardtype() subroutine will +return "PayPal card" for these cards only, and otherwise the same output as +cardtype(). + +Use this for receipt display/printing only. + +Note: this subroutine is not exported by default like the others. +Before 0.36, you needed to call this subroutine fully-qualified, as +Business::CreditCard::receipt_cardtype() -This module is for verifying I B. It is B a -pedantic implementation of the ISO 7812 standard, a general-purpose LUHN -implementation, or intended for use with "creditcard-like account numbers". +In 0.36 and later, you can import it into your namespace: -=head1 AUTHOR + use Business::CreditCard qw( :DEFAULT receipt_cardtype ); + + +=head1 ORIGINAL AUTHOR Jon Orwant The Perl Journal and MIT Media Lab -orwant@tpj.com +=head1 MAINTAINER Current maintainer is Ivan Kohler . -Please don't bother Jon with emails about this module. Lee Lawrence , Neale Banks and Max Becker contributed support for additional card types. Lee also contributed a working test.pl. Alexandr Ciornii - contributed code cleanups. + contributed code cleanups. Jason Terry + contributed updates for Discover BIN ranges. =head1 COPYRIGHT AND LICENSE Copyright (C) 1995,1996,1997 Jon Orwant Copyright (C) 2001-2006 Ivan Kohler -Copyright (C) 2007-2011 Freeside Internet Services, Inc. +Copyright (C) 2007-2016 Freeside Internet Services, Inc. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available. +=head1 HOMEPAGE + +Homepage: http://perl.business/creditcard + +=head1 REPOSITORY + +The code is available from our public git repository: + + git clone git://git.freeside.biz/Business-CreditCard.git + +Or on the web: + + http://freeside.biz/gitweb/?p=Business-CreditCard.git + Or: + http://freeside.biz/gitlist/Business-CreditCard.git + +=head1 BUGS + +(paraphrasing Neil Bowers) We export all functions by default. It would be +better to let the user decide which functions to import. And validate() is +a bit of a generic name. + +The question is, after almost 2 decades with this interface (inherited from +the original author, who probably never expected it to live half this long), +how to change things to behave in a more modern fashion without breaking +existing code? "use Business::CreditCard " turns it off? +Explicitly ask to turn it off and list that in the SYNOPSIS? + +=head2 validate() and @EXPORT transition plan + +First (done in 0.36): + +validate_card() is the new name for validate(). Both work for now. + +New-style usage (not recommended for code that needs to support B:CC before 0.36): + + use Business::CreditCard qw( :NEW ); + +You get validate_card(), cardtype() and receipt_cardtype(). You can also ask +for them explicitly / individually: + + use Business::CreditCard qw( validate_card cardtype receipt_cardtype ); + + +Second (we're at now now): + +Waiting for 0.36+ to become more prevalent. + + +Third: + +Recommend new-style usage. Maybe asking for a specific minimum version turns +it on too? + + +Fourth: + (this is the incompatible part): + +Don't export validate() (or anything else [separately?]) by default. + +This is the part that will break things and we probably won't do for a long +time, until new-style usage is the norm and the tradeoff of breaking old code +is worth it to stop or namespace pollution. Maybe do a 1.00 release with the +current API and 2.00 is when this happens (with a 1.99_01 pre-release)? + =head1 SEE ALSO L is a wrapper around Business::CreditCard @@ -146,11 +227,22 @@ Business::CreditCard distribution is welcome. L is a framework for processing online payments including modules for various payment gateways. +http://neilb.org/reviews/luhn.html is an excellent overview of similar modules +providing credit card number verification (LUHN checking). + =cut -@EXPORT = qw(cardtype validate generate_last_digit); +## ref http://neilb.org/reviews/luhn.html#Comparison it looks like +## Business::CCCheck is 2x faster than we are. looking at their implementation +## not entirely a fair comparison, we also do the equivalent of their CC_clean, +## they don't recognize certain cards at all (i.e. Switch) which require +## an expensive check before VISA, Diners doesn't exist anymore, Discover is +## a lot more than just 6011*, they don't handle processing agreements, etc. sub cardtype { + # Allow use as a class method + shift if UNIVERSAL::isa( $_[0], 'Business::CreditCard' ); + my ($number) = @_; $number =~ s/[\s\-]//go; @@ -168,31 +260,32 @@ sub cardtype { && 0+$number; } - return "Switch" - if $number =~ /^49(03(0[2-9]|3[5-9])|11(0[1-2]|7[4-9]|8[1-2])|36[0-9]{2})[\dx]{10}([\dx]{2,3})?$/o - || $number =~ /^564182[\dx]{10}([\dx]{2,3})?$/o - || $number =~ /^6(3(33[0-4][0-9])|759[0-9]{2})[\dx]{10}([\dx]{2,3})?$/o; - - return "VISA card" if $number =~ /^4[\dx]{12}([\dx]{3})?$/o; + return "VISA card" if $number =~ /^4[0-8][\dx]{11,17}$/o; return "MasterCard" - if $number =~ /^5[1-5][\dx]{14}$/o - ;# || ( $number =~ /^36[\dx]{12}/ && $Country =~ /^(US|CA)$/oi ); - - return "Discover card" - if $number =~ /^30[0-5][\dx]{11}([\dx]{2})?$/o #diner's: 300-305 - || $number =~ /^3095[\dx]{10}([\dx]{2})?$/o #diner's: 3095 - || $number =~ /^3[68][\dx]{12}([\dx]{2})?$/o #diner's: 36 - || $number =~ /^6011[\dx]{12}$/o - || $number =~ /^64[4-9][\dx]{13}$/o - || $number =~ /^65[\dx]{14}$/o - || ( $number =~ /^62[24-68][\dx]{13}$/o && uc($Country) ne 'CN' ) #CUP - || ( $number =~ /^35(2[89]|[3-8][\dx])[\dx]{10}$/o && uc($Country) eq 'US' ); + if $number =~ /^5[1-5][\dx]{14}$/o + || $number =~ /^2 ( 22[1-9] | 2[3-9][\dx] | [3-6][\dx]{2} | 7[0-1][\dx] | 720 ) [\dx]{12}$/xo + || $number =~ /^2[2-7]xx[\dx]{12}$/o; return "American Express card" if $number =~ /^3[47][\dx]{13}$/o; - #return "Diner's Club/Carte Blanche" - # if $number =~ /^3(0[0-59]|[68][\dx])[\dx]{11}$/o; + return "Discover card" + if $number =~ /^30[0-5x][\dx]{13,16}$/o #diner's: 300-305, 30x + || $number =~ /^309[5x][\dx]{12}$/o # 3095, 309x + || $number =~ /^36[\dx]{12,17}$/o # 36 + || $number =~ /^3[89][\dx]{14,17}$/o # 38 and 39 + || $number =~ /^60[1x]{2}[\dx]{12,15}$/o #discover: 6011 601x 60xx + || $number =~ /^64[4-9x][\dx]{13,16}$/o # 644-649, 64x + || $number =~ /^65[\dx]{14,17}$/o # 65 + || ( $number =~ /^62[24-68x][\dx]{13,16}$/o && $Country =~ /^(US|MX|AI|AG|AW|BS|BB|BM|BQ|VG|KY|CW|DM|DO|GD|GP|JM|MQ|MS|BL|KN|LC|VC|MF|SX|TT|TC)$/oi ) #China Union Pay identified as Discover in US, Mexico and Caribbean + || ( $number =~ /^35(2[89x]|[3-8][\dx]|xx)[\dx]{12,15}$/o && $Country =~ /^(US|PR|VI|MP|PW|GU)$/oi ); #JCB cards in the 3528-3589 range are identified as Discover in US, Puerto Rico, US Virgin Islands, Northern Mariana Islands, Palau and Guam + + return "Switch" + if $number =~ /^49(03(0[2-9]|3[5-9])|11(0[1-2]|7[4-9]|8[1-2])|36[0-9]{2})[\dx]{10}([\dx]{2,3})?$/o + || $number =~ /^564182[\dx]{10}([\dx]{2,3})?$/o + || $number =~ /^6(3(33[0-4][0-9])|759[0-9]{2})[\dx]{10}([\dx]{2,3})?$/o; + #redunant with above, catch 49* that's not Switch + return "VISA card" if $number =~ /^4[\dx]{12,18}$/o; #"Diners Club enRoute" return "enRoute" if $number =~ /^2(014|149)[\dx]{11}$/o; @@ -216,10 +309,28 @@ sub cardtype { return "Unknown"; } +sub receipt_cardtype { + # Allow use as a class method + shift if UNIVERSAL::isa( $_[0], 'Business::CreditCard' ); + + my ($number) = @_; + + $number =~ s/[\s\-]//go; + $number =~ s/[x\*\.\_]/x/gio; + + #ref Discover IIN Bulletin Feb 2015_021715 + return "PayPal card" if $number =~ /^6(01104|506[01]0)[\dx]{10,13}$/o; + + cardtype($number); +} + sub generate_last_digit { + # Allow use as a class method + shift if UNIVERSAL::isa( $_[0], 'Business::CreditCard' ); + my ($number) = @_; - #XXX doesn't work for Isracard, should die + die "invalid operation" if length($number) == 8 || length($number) == 9; my ($i, $sum, $weight); @@ -233,7 +344,28 @@ sub generate_last_digit { return (10 - $sum % 10) % 10; } -sub validate { + +## this (GPLed) code from Business::CCCheck is apparantly 4x faster than ours +## ref http://neilb.org/reviews/luhn.html#Comparison +## maybe see if we can speed ours up a bit +# my @ccn = split('',$ccn); +# my $even = 0; +# $ccn = 0; +# for($i=$#ccn;$i >=0;--$i) { +# $ccn[$i] *= 2 if $even; +# $ccn -= 9 if $ccn[$i] > 9; +# $ccn += $ccn[$i]; +# $even = ! $even; +# } +# $type = '' if $ccn % 10; +# return $type; + +sub validate { validate_card(@_); } + +sub validate_card { + # Allow use as a class method + shift if UNIVERSAL::isa( $_[0], 'Business::CreditCard' ); + my ($number) = @_; my ($i, $sum, $weight); @@ -242,8 +374,14 @@ sub validate { $number =~ s/\D//g; - return 1 if $number =~ /^[\dx]{8,9}$/; #XXX Isracard does not use LUHN, - # validation not yet implemented + if ( $number =~ /^[\dx]{8,9}$/ ) { # Isracard + $number = "0$number" if length($number) == 8; + for($i=1;$i= 13 && 0+$number;