Hello All, There was recently a thread in this mailing list about shopping cart interface payment verification.
Here is Perl source below which performs payment verification and also provides basic functionality for selling digital goods like files or subscriptions. You can even use this script as clearing house providing payment verification services for your friends who are hosting their sites on those servers which do not allow CGI scripts. I place this script under BSD style copyright, which means that you may do anything you please with it but you should retain my copyright notice. This script was tested today on FreeBSD 4.4 STABLE in shared hosting environment. I intend to post file formats descriptions and usage guidelines to this mailing list later. Anyone who wants me to tailor this script for your needs or to develop some other software is welcome to contact me. Respectfully yours, Dmitry Salnikov, http://dmitry-salnikov.com/index.htm International business catalogue for e-gold users, http://dmitry-salnikov.com/veda.htm Gold Web Ring traffic maker for e-gold sites, http://o.webring.com/hub?ring=gold FreeBSD, Linux, C/C++, Perl, ... Web software development services, English / Russian translations. o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o #!/usr/bin/perl # ---------------------- # # # COPYRIGHT (C) 2001 DMITRY SALNIKOV, MINSK, BELARUS, # http://dmitry-salnikov.com/index.htm # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer as # the first lines of this file unmodified. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY DMITRY SALNIKOV ``AS IS'' AND ANY EXPRESS OR # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. # IN NO EVENT SHALL DMITRY SALNIKOV BE LIABLE FOR ANY DIRECT, INDIRECT, # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # # ---------------------- $md5name = '/sbin/md5'; $mailname = '/usr/sbin/sendmail -U -t'; $notifyname = '[EMAIL PROTECTED]'; $fromname = $notifyname; $pathname = '/usr/home/salnikov/'; $memoname = $pathname . 'test/acks/memo'; $accessname = $pathname . 'test/acks/access'; $checkname = $pathname . 'test/acks/check'; $lockname = $pathname . 'test/acks/lock'; $locktimers = $pathname . 'test/pass/lock'; $hidetimers = $pathname . 'test/pass/.htpasswd'; $showtimers = $pathname . 'public_html/test/pass/.htaccess'; $HASHVALUES{'999999'} = 'SECUREXHASHXOFXSECONDXPASSPHRASE'; $HASHVALUES{'777777'} = 'MD5XHASHXOFXALTERNATEXPASSPHRASE'; @wordchars = (0..9, A..Z, a..z); # ---------------------- $EGVARS{'V2_HASH'} = 'x'; $EGVARS{'PAYMENT_ID'} = ''; $EGVARS{'PAYEE_ACCOUNT'} = ''; $EGVARS{'PAYMENT_AMOUNT'} = ''; $EGVARS{'PAYMENT_UNITS'} = ''; $EGVARS{'PAYMENT_METAL_ID'} = ''; $EGVARS{'PAYMENT_BATCH_NUM'} = ''; $EGVARS{'PAYER_ACCOUNT'} = ''; $EGVARS{'ACTUAL_PAYMENT_OUNCES'} = ''; $EGVARS{'USD_PER_OUNCE'} = ''; $EGVARS{'FEEWEIGHT'} = ''; $EGVARS{'TIMESTAMPGMT'} = ''; $EGVARS{'MAIL'} = ''; # ---------------------- sub SUB_Care { $EGVARS{'V2_HASH'} = '7D74FF865EEFD81C60B79848FF283539'; $EGVARS{'PAYMENT_ID'} = 'V1000'; $EGVARS{'PAYEE_ACCOUNT'} = '777777'; $EGVARS{'PAYMENT_AMOUNT'} = '20.0'; $EGVARS{'PAYMENT_UNITS'} = '1'; $EGVARS{'PAYMENT_METAL_ID'} = '1'; $EGVARS{'PAYMENT_BATCH_NUM'} = '8765432'; $EGVARS{'PAYER_ACCOUNT'} = '123456'; $EGVARS{'ACTUAL_PAYMENT_OUNCES'} = '0.1'; $EGVARS{'USD_PER_OUNCE'} = '273.0'; $EGVARS{'FEEWEIGHT'} = '0.001'; $EGVARS{'TIMESTAMPGMT'} = '10176281671'; $EGVARS{'MAIL'} = '[EMAIL PROTECTED]'; }; sub SUB_MD5_Take { if (open(MD5TAKE, "$md5name $checkname|")) { while (<MD5TAKE>) { $aline = $_; $aline =~ s/\n//g; $aline =~ s/\r//g; $aline =~ s/\s//g; $asize = rindex($aline, '='); if ($asize > 0) { $keyaccess = substr($aline, 1 + $asize); $keyaccess =~ tr/[a-f]/[A-F]/; }; }; close(MD5TAKE); }; }; sub SUB_MD5_Save { if (open(MD5SAVE, ">$checkname")) { flock(MD5SAVE, LOCK_EX); seek(MD5SAVE, 0, SEEK_SET); print MD5SAVE $payaccess; flock(MD5SAVE, LOCK_UN); close(MD5SAVE); &SUB_MD5_Take; }; }; sub SUB_MD5_Memo { if (open(MD5MEMO, ">>$memoname")) { flock(MD5MEMO, LOCK_EX); seek(MD5MEMO, 0, SEEK_END); print MD5MEMO $payaccess, ":", $EGVARS{'V2_HASH'}, ":", $EGVARS{'MAIL'}, "\n"; flock(MD5MEMO, LOCK_UN); close(MD5MEMO); &SUB_MD5_Save; }; }; sub SUB_MD5_Line { # &SUB_Care; $payaccess = $EGVARS{'PAYMENT_ID'} . ':' . $EGVARS{'PAYEE_ACCOUNT'} . ':' . $EGVARS{'PAYMENT_AMOUNT'} . ':' . $EGVARS{'PAYMENT_UNITS'} . ':' . $EGVARS{'PAYMENT_METAL_ID'} . ':' . $EGVARS{'PAYMENT_BATCH_NUM'} . ':' . $EGVARS{'PAYER_ACCOUNT'} . ':' . $HASHVALUES{$EGVARS{'PAYEE_ACCOUNT'}} . ':' . $EGVARS{'ACTUAL_PAYMENT_OUNCES'} . ':' . $EGVARS{'USD_PER_OUNCE'} . ':' . $EGVARS{'FEEWEIGHT'} . ':' . $EGVARS{'TIMESTAMPGMT'}; }; sub SUB_MD5_Test { &SUB_MD5_Line; if (open(MD5LOCK, $lockname)) { flock(MD5LOCK, LOCK_EX); &SUB_MD5_Memo; flock(MD5LOCK, LOCK_UN); close(MD5LOCK); }; }; $HTM_More = "<HTML><HEAD><TITLE>Ok</TITLE>\n" . "</HEAD><BODY BGCOLOR=WHITE TEXT=BLACK LINK=BLUE VLINK=PURPLE ALINK=RED>\n"; $HTM_Less = " --- You are currently subscribed to e-gold-list as: archive@jab.org To unsubscribe send a blank email to [EMAIL PROTECTED] http://www.e-gold.com/stats.html lets you observe the e-gold system's activity now! </BODY></HTML>\n"; sub SUB_HTM_More { print "Content-type: text/html\n\n"; print $HTM_More; }; sub SUB_HTM_Less { print $HTM_Less; }; sub SUB_Deco { $aline =~ tr/+/ /; $aline =~ s/%(..)/pack("c", hex($1))/ge; }; sub SUB_Pars { @pairs = split(/&/, $ateso); foreach $item(@pairs) { ($key, $aline) = split(/=/, $item, 2); &SUB_Deco; $EGVARS{$key} = $aline; }; }; sub SUB_Harvester { @values = split(/\^/, $aline); $keycare = 5 + length($values[0]) + length($values[1]) + length($values[2]) + length($values[3]) + length($values[4]); if ($EGVARS{'PAYMENT_ID'} eq $values[0]) { if ($EGVARS{'PAYEE_ACCOUNT'} eq $values[1]) { if ($EGVARS{'PAYMENT_UNITS'} eq $values[2]) { if ($EGVARS{'PAYMENT_AMOUNT'} eq $values[3]) { $keyaccess = 'x'; if ($values[4] ne '0') { $keyaccess = ''; if ($EGVARS{'PAYMENT_METAL_ID'} eq $values[4]) { $keyaccess = 'x'; }; }; }; }; }; }; }; sub SUB_Verification { if (open(ACCESSTAKE, "<$accessname")) { flock(ACCESSTAKE, LOCK_EX); seek(ACCESSTAKE, 0, SEEK_SET); while (<ACCESSTAKE>) { $aline = $_; $aline =~ s/\n//g; $aline =~ s/\r//g; if ($keyaccess eq '') { &SUB_Harvester; if ($keyaccess ne '') { $keyaccess = substr($aline, $keycare); }; }; }; flock(ACCESSTAKE, LOCK_UN); close(ACCESSTAKE); }; }; sub SUB_Password { $wordpass = $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $wordpass .= $wordchars[int(rand(1 + $#wordchars))]; $saltpass = $wordchars[int(rand(1 + $#wordchars))]; $saltpass .= $wordchars[int(rand(1 + $#wordchars))]; $lockpass = crypt($wordpass, $saltpass); }; sub SUB_Hide_Movers { while (<AUTAKE>) { $aline = $_; $aline =~ s/\n//g; $aline =~ s/\r//g; if (index($aline, ':') > 0) { @values = split(/:/, $aline); if ($values[0] > $atime) { print AUSAVE $aline, "\n"; if ($values[0] >= $oktimers) { $oktimers = $values[0] + 1; }; }; }; }; }; sub SUB_Hide_Takers { $erro = 'erro'; if (open(AUTAKE, "<$hidetimers")) { $erro = ''; flock(AUTAKE, LOCK_EX); seek(AUTAKE, 0, SEEK_SET); &SUB_Hide_Movers; flock(AUTAKE, LOCK_UN); close(AUTAKE); }; }; sub SUB_Hide_Savers { $erro = 'erro'; $hidenews = $hidetimers . '.news'; if (open(AUSAVE, ">$hidenews")) { $erro = ''; flock(AUSAVE, LOCK_EX); seek(AUSAVE, 0, SEEK_SET); &SUB_Hide_Takers; &SUB_Password; print AUSAVE $oktimers, ":", $lockpass, "\n"; flock(AUSAVE, LOCK_UN); close(AUSAVE); if ($erro eq '') { if (rename($hidenews, $hidetimers) < 1) { $erro = 'erro'; }; }; }; }; sub SUB_Show_Movers { $savers = ''; while (<AUTAKE>) { $aline = $_; $aline =~ s/\n//g; $aline =~ s/\r//g; if ($savers eq ')') { print AUSAVE $aline, "\n"; }; if ($savers eq '(') { if (index($aline, '</LIMIT') >= 0) { $savers = ')'; print AUSAVE "require user ", $oktimers, "\n"; print AUSAVE $aline, "\n"; }; if (index($aline, ' user ') > 0) { @values = split(/\s/, $aline); if ($values[2] > $atime) { print AUSAVE $aline, "\n"; }; }; }; if ($savers eq '') { print AUSAVE $aline, "\n"; if (index($aline, '<LIMIT') >= 0) { $savers = '('; }; }; }; }; sub SUB_Show_Takers { $erro = 'erro'; if (open(AUTAKE, "<$showtimers")) { $erro = ''; flock(AUTAKE, LOCK_EX); seek(AUTAKE, 0, SEEK_SET); &SUB_Show_Movers; flock(AUTAKE, LOCK_UN); close(AUTAKE); }; }; sub SUB_Show_Savers { $erro = 'erro'; $shownews = $showtimers . '.news'; if (open(AUSAVE, ">$shownews")) { $erro = ''; flock(AUSAVE, LOCK_EX); seek(AUSAVE, 0, SEEK_SET); &SUB_Show_Takers; flock(AUSAVE, LOCK_UN); close(AUSAVE); if ($erro eq '') { if (rename($shownews, $showtimers) < 1) { $erro = 'erro'; }; }; }; }; sub SUB_Authorization { if (open(AULOCK, $locktimers)) { $erro = ''; flock(AULOCK, LOCK_EX); &SUB_Hide_Savers; if ($erro eq '') { &SUB_Show_Savers; }; flock(AULOCK, LOCK_UN); close(AULOCK); }; }; sub SUB_Timers { $oktimers = 60 * 60 * 24 * 31; if ($EGVARS{'PAYMENT_ID'} ne 'MONTH') { $oktimers = 60 * 60 * 24 * 7; if ($EGVARS{'PAYMENT_ID'} ne 'WEEK') { $oktimers = 0; }; }; $erro = 'erro'; if ($oktimers > 0) { $oktimers += $atime; &SUB_Authorization; }; }; sub SUB_Access { &SUB_Timers; if (open(MAILSAVE, "|$mailname")) { print MAILSAVE "From: $fromname\n"; print MAILSAVE "Cc: $notifyname\n"; print MAILSAVE "To: ", $EGVARS{'MAIL'}, "\n"; print MAILSAVE "Subject: Access\n\n"; print MAILSAVE "$keyaccess\n"; if ($erro eq '') { print MAILSAVE $oktimers, ":", $wordpass, "\n"; }; close(MAILSAVE); }; }; $atime = time; srand($atime ^ ($$ + ($$ << 15))); umask(0); $asize = $ENV{'CONTENT_LENGTH'}; $aquer = $ENV{'REQUEST_METHOD'}; if ($aquer eq 'POST') { read(STDIN, $ateso, $asize); &SUB_Pars; }; $keyaccess = ''; if ($EGVARS{'V2_HASH'} ne '') { &SUB_MD5_Test; print "HASH:", $keyaccess, "\n"; if ($EGVARS{'V2_HASH'} eq $keyaccess) { $keyaccess = ''; &SUB_Verification; if ($keyaccess ne '') { &SUB_Access; }; }; }; &SUB_HTM_More; &SUB_HTM_Less; # end of source.
