Simple curses-based mesh display
This commit is contained in:
Stefan `Sec` Zehl
parent
2e27a60d19
commit
a38a5a9874
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#!/usr/bin/perl
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#
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# vim:set ts=4 sw=4:
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use strict;
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use Curses;
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use POSIX qw(strftime);
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use lib '.';
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use r0ket;
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$|=1;
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my $ser="<undef>";
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do {$ser=$_ if ( -e $_ ) } for qw(/dev/ttyS3 /dev/ttyACM0);
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if ($ARGV[0] eq "-s"){
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shift;
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$ser=shift;
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};
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open(SER, "+<",$ser) || die "open serial: $!";
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r0ket::readbeacon();
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my $str;
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my %bdata;
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initscr;
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END{endwin;}
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use constant WIDTH => 80;
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use constant m_height => 15;
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my $win_top=subwin(2,WIDTH,0,0);
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my $win=subwin(m_height,WIDTH,2,0);
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noecho;
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curs_set(0);
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$win_top->addstr(0,0,"r0ket Mesh-Trace 0.1");
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$win_top->addstr(1,0,"-"x20);
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$win_top->refresh;
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my $beaconctr=0;
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while(1){
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$str=r0ket::get_packet(\*SER);
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my $p=r0ket::pkt_beauty($str);
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if(!$bdata{$p->{beacon}}){
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$bdata{$p->{beacon}}=++$beaconctr;
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};
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$win->addstr($bdata{$p->{beacon}},0,
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sprintf "%s | g=%d rel=%s time=%s =%+4d | %s",
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$p->{beacon},
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$p->{generation},
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$p->{release},
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strftime("%Y-%m-%d %H:%M:%S",gmtime $p->{time}),
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$p->{time}-(time+3600),
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r0ket::getbeacon($p->{beacon})
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);
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$win->refresh;
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};
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r0ket::rest();
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@ -0,0 +1,167 @@
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#!/usr/bin/perl
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#
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# vim:set ts=4 sw=4:
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use strict;
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use IO::Select;
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package r0ket;
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use Digest::CRC qw(crcccitt);
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use POSIX qw(strftime);
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### Utility
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sub sprint{
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return join("",map {
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if (ord($_)>30 && ord($_)<127){
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$_;
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}else{
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"[x".unpack("H*",$_)."]";
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}
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}split(//,shift));
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};
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### Nickname/beacon helper functions
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our %beacon;
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sub readbeacon{
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return if( ! -f "BEACON" );
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open(B,"<","BEACON") || die "open: $!";
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while(<B>){
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/(\w+)\s+(.*)/ && do {
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$beacon{$1}=$2;
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};
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};
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close(B);
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};
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sub getbeacon{
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my $b=shift;
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if(!$beacon{$b}){
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return "";
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}else{
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return $beacon{$b};
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};
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};
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sub resolvebeacon{
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my $b=shift;
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if(!$beacon{$b}){
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return $b;
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}else{
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return "$b ($beacon{$b})";
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};
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};
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sub addbeacon{
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my($b,$n)=@_;
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if(!$beacon{$b}){
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$beacon{$b}=$n;
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};
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};
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sub writebeacon{
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open(B,">","BEACON") || die "write: $!";
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for(sort keys %beacon){
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print B "$_ $beacon{$_}\n";
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};
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close(B);
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};
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### Packet mgmt
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our $buffer;
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sub get_packet{
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my $dev=shift;
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sub _get_bytes{
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my $rr;
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sysread($dev,$rr,1024);
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if(length($rr)<=1){
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select(undef,undef,undef,0.1);
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};
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$buffer.=$rr;
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};
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my $cnt=0;
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while(++$cnt<10){
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if(length($buffer)<2){
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_get_bytes();
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}elsif($buffer !~ /^\\[12]/){
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$buffer=~s/^(.[^\\]*)//s;
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# print STDERR "Unparseable stuff: <",sprint($1),">\n";
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}elsif ($buffer =~ s/^\\([12])(.*?)\\0//s){
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my $str=$2;
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$str=~s/\\\\/\\/g; # dequote
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return $str;
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}else{
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_get_bytes();
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};
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};
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die "No packets for >1sec?\n";
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};
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sub rest{
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if(length($buffer)>0){
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print "rest: <", sprint($buffer), ">\n";
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};
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};
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### Pkt beautify
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sub nice_mesh{
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my $pkt=shift;
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my $out;
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my $type=substr($pkt,0,1);
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# next if(defined $arg && $arg ne $i);
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$out->{type}=$type;
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$out->{string}="[$type]";
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$out->{generation}=unpack("C",substr($pkt,1,1));
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$out->{string}.= " g=".$out->{generation};
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if($type eq "T"){
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$out->{time}= unpack("N",substr($pkt,2,4));
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$out->{release}=unpack("H*",substr($pkt,24,2));
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$out->{beacon}= unpack("H*",substr($pkt,26,4));
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$out->{string}.=sprintf " t=%s (%+4d) rel=%s beacon=%s",
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strftime("%Y-%m-%d %H:%M:%S",gmtime $out->{time}),
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$out->{time}-(time+3600),
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$out->{release},
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resolvebeacon($out->{beacon});
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}elsif($type eq "i"){
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$out->{score}=unpack("N",substr($pkt,2,4));
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$out->{nick}= unpack("Z*",substr($pkt,6,length($pkt)-8));
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$out->{string}.=sprintf " score=%d nick=%s",
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$out->{score},
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$out->{nick};
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}elsif($type eq "B"){
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$out->{time}=unpack("N",substr($pkt,2,4));
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$out->{id}= unpack("c",substr($pkt,6,1));
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$out->{hop}= unpack("n",substr($pkt,11,4));
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$out->{string}.=sprintf " t=%d id=%s hop=%3d",
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$out->{time},
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$out->{id},
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$out->{hop};
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}else{
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$out->{string}.= " <??: ".unpack("H*",substr($pkt,2,length($pkt)-4)).">";
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};
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return $out;
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};
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sub pkt_beauty{
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my $pkt=shift;
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my $out;
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$out=nice_mesh($pkt);
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my $pkt_crc= unpack("n",substr($pkt,length($pkt)-2,2));
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my $calc_crc= crcccitt(substr($pkt,0,length($pkt)-2));
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if ($pkt_crc eq $calc_crc){
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$out->{crc}="ok";
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}else{
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$out->{crc}="fail";
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$out->{string}.= " CRCFAIL";
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};
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return $out;
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}
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1;
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