Initial checkin of upstream version 4.09.
Signed-off-by: Thomas Hochstein <thh@inter.net>
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ac7e2c541a
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225
UVreadmail.pm
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225
UVreadmail.pm
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# UVreadmail: functions for reading and processing mailfiles
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# Used by uvvote.pl, uvcfv.pl, uvbounce.pl
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package UVreadmail;
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use strict;
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use UVconfig;
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use UVmessage;
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use MIME::QuotedPrint;
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use MIME::Base64;
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use MIME::Parser;
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use POSIX qw(strftime);
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use vars qw($VERSION);
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# Module version
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$VERSION = "0.11";
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sub process {
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# $filename: file containing bounces or (if POP3 is enabled) where
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# mails should be saved
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# $callsub: reference to a sub which should be called for each mail
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# $caller: 0 = uvvote.pl, 1 = uvcfv.pl, 2 = uvbounce.pl
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# 3 = uvbounce.pl but POP3 disabled (overrides $config{pop3}
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#
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my ($filename, $callsub, $caller) = @_;
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my ($voter_addr, $voter_name, $body);
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my $count = 0;
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my ($pop3server, $pop3user, $pop3pass, $pop3delete, $pop3uidlcache);
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my @mails = ();
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$caller ||= 0;
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if ($config{pop3} && $caller<3) {
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if ($caller == 1) {
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# Ballot request (personal = 1 set in usevote.cfg) from uvcfv.pl
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$pop3server = $config{pop3server_req} . ':' . $config{pop3port_req};
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$pop3user = $config{pop3user_req};
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$pop3pass = $config{pop3pass_req};
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$pop3delete = $config{pop3delete_req};
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$pop3uidlcache = $config{pop3uidlcache_req};
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} elsif ($caller == 2) {
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# called from uvbounce.pl
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$pop3server = $config{pop3server_bounce} . ':' . $config{pop3port_bounce};
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$pop3user = $config{pop3user_bounce};
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$pop3pass = $config{pop3pass_bounce};
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$pop3delete = $config{pop3delete_bounce};
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$pop3uidlcache = $config{pop3uidlcache_bounce};
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} else {
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$pop3server = $config{pop3server} . ':' . $config{pop3port};
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$pop3user = $config{pop3user};
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$pop3pass = $config{pop3pass};
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$pop3delete = $config{pop3delete};
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$pop3uidlcache = $config{pop3uidlcache};
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}
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# read list of seen mails (UIDLs)
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my %uidls = (); # hash for quick searching
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my @uidls = (); # array to preserve order
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my $cacheexist = 1;
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open (UIDLCACHE, "<$pop3uidlcache") or $cacheexist = 0;
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if ($cacheexist) {
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while (my $uidl = <UIDLCACHE>) {
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chomp ($uidl);
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$uidls{$uidl} = 1;
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push (@uidls, $uidl);
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}
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close (UIDLCACHE);
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}
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print UVmessage::get("READMAIL_STATUS"), "\n" unless ($caller == 2);
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# open POP3 connection and get new mails
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use Net::POP3;
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my $pop = Net::POP3->new($pop3server)
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or die UVmessage::get("READMAIL_NOCONNECTION") . "\n\n";
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my $mailcount = $pop->login($pop3user, $pop3pass);
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die UVmessage::get("READMAIL_NOLOGIN") . "\n\n" unless ($mailcount);
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for (my $n=1; $n<=$mailcount; $n++) {
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my $uidl = $pop->uidl($n);
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if ($uidl) {
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next if ($uidls{$uidl});
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$uidls{$uidl} = 1;
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push (@uidls, $uidl);
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}
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my $mailref = $pop->get($n)
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or print STDERR UVmessage::get("READMAIL_GET_PROBLEM", (NR => $n)) . "\n";
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my $mail = join ('', @$mailref);
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my $fromline = 'From ';
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if ($mail =~ /From: .*?<(.+?)>/) {
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$fromline .= $1;
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} elsif ($mail =~ /From:\s+?(\S+?\@\S+?)\s/) {
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$fromline .= $1;
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} else {
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$fromline .= 'foo@bar.invalid';
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}
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$fromline .= ' ' . strftime ('%a %b %d %H:%M:%S %Y', localtime) . "\n";
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push (@mails, $fromline . $mail);
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if ($pop3delete) {
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$pop->delete($n)
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or print STDERR UVmessage::get("READMAIL_DEL_PROBLEM", (NR => $n)) . "\n";
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}
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}
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# save UIDLs
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my $uidlerr = 0;
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open (UIDLCACHE, ">$pop3uidlcache") or $uidlerr = 1;
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if ($uidlerr) {
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print STDERR UVmessage::get("READMAIL_UIDL_PROBLEM") . "\n";
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print STDERR UVmessage::get("READMAIL_UIDL_PROBLEM2") . "\n";
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} else {
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print UIDLCACHE join("\n", @uidls);
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close (UIDLCACHE) or print STDERR UVmessage::get("READMAIL_UIDL_CLOSE") . "\n";
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}
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# make archive of all mails
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my $fileproblem = 0;
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open (VOTES, ">$filename") or $fileproblem = 1;
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if ($fileproblem) {
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print STDERR UVmessage::get("READMAIL_ARCHIVE_PROBLEM",
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(FILE => $filename)) . "\n";
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} else {
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print VOTES join ("\n", @mails);
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close (VOTES)
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or print STDERR UVmessage::get("READMAIL_ARCHIVE_CLOSE",
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(FILE => $filename)) . "\n";
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}
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$pop->quit();
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} else {
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# open mail file
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open(VOTES, "<$filename")
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or die UVmessage::get("READMAIL_NOMAILFILE", (FILE => $filename)) . "\n\n";
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# read all mails
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my $i = 0;
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while (<VOTES>) {
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if (/$config{mailstart}/) {
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$i++;
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}
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$mails[$i] = ($mails[$i] || "") . $_;
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}
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# close mail file
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close(VOTES);
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}
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foreach my $mail (@mails) {
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next unless $mail;
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# split mail into array and remove first line (from line)
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my @mail = split(/\n/, $mail);
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shift (@mail) if ($mail[0] =~ /^From /);
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# generate MIME-Parser object for the mail
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my $parser = new MIME::Parser;
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# headers are to be decoded
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$parser->decode_headers(1);
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# don't write into file
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$parser->output_to_core(1);
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# read mail
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my $entity = $parser->parse_data(join("\n", @mail));
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my $head = $entity->head;
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# extract address and name
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my $from = $head->get('From') || '';
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if ($from =~ /\s*([^<]\S+\@\S+[^>]) \((.+)\)/) {
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($voter_addr, $voter_name) = ($1, $2);
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} elsif ($from =~ /\s*\"?([^\"]+)\"?\s*<(\S+\@\S+)>/) {
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($voter_name, $voter_addr) = ($1, $2);
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$voter_name =~ s/\s+$//; # kill spaces at the end
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} elsif ($from =~ /\s*<?(\S+\@[^\s>]+)>?[^\(\)]*/) {
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($voter_addr, $voter_name) = ($1, '');
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} else {
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# initialize with empty value
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$voter_addr = '';
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$voter_name = '';
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}
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# look at reply-to?
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if ($config{replyto}) {
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my $replyto = Mail::Field->new('Reply-To', $head->get('Reply-To'));
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# Address in Reply-To?
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($voter_addr) = $replyto->addresses() if ($replyto->addresses());
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# Name in reply-to?
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if ($replyto->names()) {
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my ($nametmp) = $replyto->names();
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$voter_name = $nametmp unless ($nametmp =~ /^\s*$/);
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}
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}
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# decode body
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my $encoding = $head->get('Content-Transfer-Encoding') || '';
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if ($encoding =~ /quoted-printable/i) {
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$body = decode_qp($entity->stringify_body);
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} elsif ($encoding =~ /base64/i) {
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$body = decode_base64($entity->stringify_body);
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} else {
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$body = $entity->stringify_body;
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}
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my $h_date = $head->get('Date') || '';
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chomp $h_date;
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# call referred sub and increase counter
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&$callsub($voter_addr, $voter_name, $h_date, $entity, \$body);
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$count++;
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}
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return $count;
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}
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1;
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