Biblio-RFID/scripts/RFID-JSONP-server.pl
#!/usr/bin/perl
=head1 NAME
RFID-JSONP-server - simpliest possible JSONP server which provides local web interface to RFID readers
=head1 USAGE
./scripts/RFID-JSONP-server.pl [--debug] [--listen=127.0.0.1:9000] [--reader=filter]
=cut
use strict;
use warnings;
use Data::Dump qw/dump/;
use JSON::XS;
use IO::Socket::INET;
use LWP::UserAgent;
use URI;
use URI::Escape;
use POSIX qw(strftime);
use Encode;
my $debug = 0;
my $listen = $ENV{HTTP_LISTEN} || 'localhost:9000';
my $reader;
my $koha_url = $ENV{KOHA_URL};
warn "$koha_url";
# internal URL so we can find local address of machine and vmware NAT
my $rfid_url = $ENV{RFID_URL};
my $sip2 = {
server => $ENV{SIP2_SERVER}, # '10.60.0.11:6002' must be IP!
user => $ENV{SIP2_USER},
password => $ENV{SIP2_PASSWORD},
loc => $ENV{SIP2_LOC},
};
my $afi = {
secure => 0xDA,
unsecure => 0xD7,
};
use Getopt::Long;
GetOptions(
'debug!' => \$debug,
'listen=s', => \$listen,
'reader=s', => \$reader,
) || die $!;
die "need KOHA_URL, eg. http://ffzg.koha-dev.rot13.org:8080" unless $koha_url;
our $rfid_sid_cache;
sub rfid_borrower {
my $hash = shift;
if ( my $json = $rfid_sid_cache->{ $hash->{sid} } ) {
return $json;
}
my $ua = LWP::UserAgent->new;
my $url = URI->new( $koha_url . '/cgi-bin/koha/ffzg/rfid/borrower.pl');
$url->query_form(
RFID_SID => $hash->{sid}
, OIB => $hash->{OIB}
, JMBAG => $hash->{JMBAG}
);
warn "GET ",$url->as_string;
my $response = $ua->get($url);
if ( $response->is_success ) {
my $json = decode_json $response->decoded_content;
$rfid_sid_cache->{ $hash->{sid} } = $json;
return $json;
} else {
warn "ERROR ", $response->status_line;
}
}
sub sip2_socket {
return $sip2->{sock} if exists $sip2->{sock} && $sip2->{sock}->connected;
if ( my $server = $sip2->{server} ) {
my $sock = $sip2->{sock} = IO::Socket::INET->new( $server ) || die "can't connect to $server: $!";
warn "SIP2 server ", $sock->peerhost, ":", $sock->peerport, "\n";
# login
if ( sip2_message("9300CN$sip2->{user}|CO$sip2->{password}|")->{fixed} !~ m/^941/ ) {
die "SIP2 login failed";
}
}
return $sip2->{sock};
}
sub sip2_message {
my $send = shift;
my $retry = 0;
send_again:
my $sock = sip2_socket || die "no sip2 socket";
local $/ = "\r";
$send .= "\r" unless $send =~ m/\r$/;
$send .= "\n" unless $send =~ m/\n$/;
warn "SIP2 >>>> ",dump($send), "\n";
print $sock $send;
$sock->flush;
my $expect = substr($send,0,2) | 0x01;
my $in = <$sock>;
warn "SIP2 <<<< ",dump($in), "\n";
$in =~ s/^\n//;
$in =~ s/\r$//;
if ( ! $in ) {
$retry++;
warn "empty read from SIP server, retry: $retry\n";
if ( $retry < 10 ) {
close( $sip2->{sock} );
goto send_again;
}
die "aborted";
}
die "expected $expect" unless substr($in,0,2) != $expect;
my $hash;
if ( $in =~ s/^([0-9\s\w]+)// ) {
$hash->{fixed} = $1;
}
foreach ( split(/\|/, $in ) ) {
my ( $f, $v ) = ( $1, $2 ) if m/([A-Z]{2})(.+)/;
$hash->{$f} = decode('utf-8',$v);
}
warn "# sip2 hash response ",dump($hash);
return $hash;
}
use lib 'lib';
use Biblio::RFID::RFID501;
use Biblio::RFID::Reader;
my $rfid = Biblio::RFID::Reader->new( shift @ARGV );
$rfid->debug( $debug );
my $index_html;
{
local $/ = undef;
$index_html = <DATA>;
$index_html =~ s{http://koha.example.com:8080}{$koha_url}sg;
}
my $server_url;
sub http_server {
my $server = IO::Socket::INET->new(
Proto => 'tcp',
LocalAddr => $listen,
Listen => SOMAXCONN,
Reuse => 1
);
die "can't setup server: $!" unless $server;
$server_url = 'http://' . $listen;
print "Server $0 ready at $server_url\n";
while (my $client = $server->accept()) {
eval { # don't die inside here!
$client->autoflush(1);
my $request = <$client>;
warn "WEB << $request\n" if $debug;
my $path;
if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
my $method = $1;
my $param;
if ( $method =~ s{\?(.+)}{} ) {
foreach my $p ( split(/[&;]/, $1) ) {
my ($n,$v) = split(/=/, $p, 2);
$param->{$n} = $v;
}
warn "WEB << param: ",dump( $param ) if $debug;
}
$path = $method;
if ( $path eq '/' ) {
print $client "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n$index_html";
} elsif ( $path =~ m{^/(examples/.+)} ) {
$path = $1; # FIXME prefix with dir for installation
my $size = -s $path;
warn "static $path $size bytes\n";
my $content_type = 'text/plain';
$content_type = 'application/javascript' if $path =~ /\.js$/;
$content_type = 'text/html' if $path =~ /\.html$/;
print $client "HTTP/1.0 200 OK\r\nContent-Type: $content_type\r\nContent-Length: $size\r\n\r\n";
{
local $/ = undef;
open(my $fh, '<', $path) || die "can't open $path: $!";
while(<$fh>) {
print $client $_;
}
close($fh);
}
} elsif ( $method =~ m{/scan(/only/(.+))?} ) {
my $only = $2;
my @tags = $rfid->tags( reader => sub {
my $reader = shift;
return 1 unless $only;
if ( ref($reader) =~ m/$only/i ) {
return 1;
}
return 0;
});
my $json = { time => time() };
foreach my $tag ( @tags ) {
my $hash = $rfid->to_hash( $tag );
$hash->{sid} = $tag;
$hash->{reader} = $rfid->from_reader( $tag );
if ( $hash->{tag_type} eq 'SmartX' ) {
my $borrower = rfid_borrower $hash;
if ( exists $borrower->{error} ) {
warn "ERROR ", dump($borrower);
} else {
$hash->{borrower} = $borrower->{borrower};
$hash->{content} = $borrower->{borrower}->{cardnumber}; # compatibile with 3M tags
}
} else {
$hash->{security} = uc unpack 'H*', $rfid->afi( $tag );
}
push @{ $json->{tags} }, $hash;
};
warn "#### ", encode_json($json);
print $client "HTTP/1.0 200 OK\r\nContent-Type: application/json\r\n\r\n",
$param->{callback}, "(", encode_json($json), ")\r\n";
} elsif ( $method =~ m{/program} ) {
my $status = 501; # Not implementd
foreach my $p ( keys %$param ) {
next unless $p =~ m/^(E[0-9A-F]{15})$/;
my $tag = $1;
my $content = Biblio::RFID::RFID501->from_hash({ content => $param->{$p} });
$content = Biblio::RFID::RFID501->blank if $param->{$p} eq 'blank';
$status = 302;
warn "PROGRAM $tag $content\n";
$rfid->write_blocks( $tag => $content );
$rfid->write_afi( $tag => chr( $param->{$p} =~ /^130/ ? $afi->{secure} : $afi->{unsecure} ) );
}
print $client "HTTP/1.0 $status $method\r\nLocation: $server_url\r\n\r\n";
} elsif ( $method =~ m{/secure(.js)} ) {
my $json = $1;
my $status = 501; # Not implementd
foreach my $p ( keys %$param ) {
next unless $p =~ m/^(E[0-9A-F]{15})$/;
my $tag = $1;
my $data = $param->{$p};
$status = 302;
warn "SECURE $tag $data\n";
$rfid->write_afi( $tag => chr(hex($data)) );
}
if ( $json ) {
print $client "HTTP/1.0 200 OK\r\nContent-Type: application/json\r\n\r\n",
$param->{callback}, "({ ok: 1 })\r\n";
} else {
print $client "HTTP/1.0 $status $method\r\nLocation: $server_url\r\n\r\n";
}
} elsif ( $method =~ m{/sip2/(\w+)/(.+)} ) {
my ( $method, $args ) = ( $1, $2 );
warn "SIP2: $method [$args]";
my $ts = strftime('%Y%m%d %H%M%S', localtime());
my $loc = $sip2->{loc} || die "missing sip->{loc}";
my $password = $sip2->{password} || die "missing sip->{password}";
my $hash;
if ( $method eq 'patron_info' ) {
my $patron = $args;
$hash = sip2_message("63000${ts} AO$loc|AA$patron|AC$password|");
} elsif ( $method eq 'checkout' ) {
my ($patron,$barcode,$sid) = split(/\//, $args, 3);
$hash = sip2_message("11YN${ts} AO$loc|AA$patron|AB$barcode|AC$password|BON|BIN|");
if ( substr( $hash->{fixed}, 2, 1 ) == 1 ) {
$rfid->write_afi( $sid => chr( $afi->{unsecure} ) );
}
} elsif ( $method eq 'checkin' ) {
my ($patron,$barcode,$sid) = split(/\//, $args, 3);
$hash = sip2_message("09N${ts}${ts}AP|AO${loc}|AB$barcode|AC|BIN|");
if ( substr( $hash->{fixed}, 2, 1 ) == 1 ) {
$rfid->write_afi( $sid => chr( $afi->{secure} ) );
}
} else {
print $client "HTTP/1.0 501 $method not implemented\r\n\r\n";
warn "ERROR 501 $request\n";
}
if ( $hash ) {
print $client "HTTP/1.0 200 OK\r\nContent-Type: application/json\r\n\r\n",
encode_json( $hash );
}
} elsif ( $method =~ m{/beep/(.*)} ) {
my $error = uri_unescape($1);
system "beep -f 800 -r 2 -l 100";
print $client "HTTP/1.0 200 OK\r\nContent-Type: application/json\r\n\r\n{ beep: '$error' }\n";
print "BEEP $error\n";
} else {
print $client "HTTP/1.0 404 Unkown method\r\n\r\n";
warn "ERROR 404 $request\n";
}
} else {
print $client "HTTP/1.0 500 No method\r\n\r\n";
warn "ERROR 500 $request\n";
}
close $client;
}; # end of eval
if ( $@ ) {
print $client "HTTP/1.0 500 Error\r\n\r\nContent-Type: text/plain\r\n$@";
warn "ERROR: $@";
}
}
die "server died";
}
sub rfid_register {
my $ip;
foreach ( split(/\n/, `ip addr` ) ) {
if ( /^\d:\s(\w+):\s/ ) {
$ip->{_last} = $1;
} elsif ( /^\s+inet\s((\d+)\.(\d+)\.(\d+)\.(\d+))\/(\d+)/ ) {
$ip->{ $ip->{_last} } = $1;
} else {
#warn "# SKIP [$_]\n";
}
}
warn dump($ip);
my $ua = LWP::UserAgent->new;
my $url = URI->new( $rfid_url . '/register.pl');
$url->query_form( %$ip,
HTTP_LISTEN => $listen,
RFID_LISTEN => $ENV{RFID_LISTEN},
KOHA_URL => $koha_url,
RFID_URL => $rfid_url,
);
warn "GET ",$url->as_string;
my $response = $ua->get($url);
if ( $response->is_success ) {
warn "# ", $response->decoded_content;
my $json = decode_json $response->decoded_content;
warn "REGISTER: ",dump($json);
return $json;
} else {
warn "ERROR ", $response->status_line;
}
}
rfid_register if $rfid_url;
http_server;
__DATA__
<html>
<head>
<title>RFID JSONP</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<style type="text/css">
.status {
background: #ff8;
}
.da {
background: #fcc;
}
.d7 {
background: #cfc;
}
label[for=pull-reader] {
position: absolute;
top: 1em;
right: 1em;
background: #eee;
}
</style>
<script type="text/javascript">
// mock console
if(!window.console) {
window.console = new function() {
this.info = function(str) {};
this.debug = function(str) {};
};
}
function got_visible_tags(data,textStatus) {
var html = 'No tags in range';
if ( data.tags ) {
html = '<ul class="tags">';
$.each(data.tags, function(i,tag) {
console.debug( i, tag );
html += '<li><tt class="' + tag.security + '">' + tag.sid;
var content = tag.content || tag.borrower.cardnumber;
if ( content ) {
html += ' <a href="http://koha.example.com:8080/cgi-bin/koha/';
if ( tag.type == 1 ) { // book
html += 'catalogue/search.pl?q=';
} else {
html += 'members/member.pl?member=';
}
html += content + '" title="lookup in Koha" target="koha-lookup">' + content + '</a>';
html += '</tt>';
/*
html += '<form method=get action=program style="display:inline">'
+ '<input type=hidden name='+tag.sid+' value="blank">'
+ '<input type=submit value="Blank" onclick="return confirm(\'Blank tag '+tag.sid+'\')">'
+ '</form>'
;
*/
} else {
html += '</tt>';
html += ' <form method=get action=program style="display:inline">'
+ '<!-- <input type=checkbox name=secure value='+tag.sid+' title="secure tag"> -->'
+ '<input type=text name='+tag.sid+' size=12>'
+ '<input type=submit value="Program">'
+ '</form>'
;
}
});
html += '</ul>';
}
var arrows = Array( 8592, 8598, 8593, 8599, 8594, 8600, 8595, 8601 );
html = '<div class=status>'
+ textStatus
+ ' &#' + arrows[ data.time % arrows.length ] + ';'
+ '</div>'
+ html
;
$('#tags').html( html );
window.setTimeout(function(){
scan_tags();
},200); // re-scan every 200ms
};
function scan_tags() {
console.info('scan_tags');
if ( $('input#pull-reader').attr('checked') )
$.getJSON("/scan?callback=?", got_visible_tags);
}
$(document).ready(function() {
$('input#pull-reader').click( function() {
scan_tags();
});
$('input#pull-reader').attr('checked', true); // force check on load
$('div#tags').click( function() {
$('input#pull-reader').attr('checked', false);
} );
scan_tags();
});
</script>
</head>
<body>
<h1>RFID tags in range</h1>
<label for=pull-reader>
<input id=pull-reader type=checkbox checked=1>
active
</label>
<div id="tags">
RFID reader not found or driver program not started.
</div>
</body>
</html>