102 lines
3.2 KiB
PHP
102 lines
3.2 KiB
PHP
<?php
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require_once(__DIR__.'/vendor/autoload.php');
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use PhpAmqpLib\Connection\AMQPStreamConnection;
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use PhpAmqpLib\Connection\AMQPSSLConnection;
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use PhpAmqpLib\Message\AMQPMessage;
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$lineReadTimeout=1;
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$port=getenv("SCANNER_PORT");
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$rabbitHost=getenv("RABBITMQ_HOST");
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$rabbitPort=getenv("RABBITMQ_PORT")?getenv("RABBITMQ_PORT"):5672;
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$rabbitLogin=getenv("RABBITMQ_USER");
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$rabbitPass=getenv("RABBITMQ_PASSWORD");
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$rabbitUseSSL=getenv("RABBITMQ_USE_SSL")==="true";
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$rabbitVirtualHost=getenv("RABBITMQ_VIRTUAL_HOST")?getenv("RABBITMQ_VIRTUAL_HOST"):"/";
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$routingTag=null;
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$connection=null;
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$channel=null;
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while (1) {
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try {
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$connection=rabbitConnect($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass, $rabbitUseSSL);
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$channel=$connection->channel();
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scanner($channel, $port);
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} catch (Exception $e) {
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print "Exception ".$e->getMessage()."\n";
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$channel->close();
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$connection->close();
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$s=rand(5, 15);
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print "Sleep $s seconds..";
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sleep($s);
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print "Ok\n";
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}
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}
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function rabbitConnect($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass, $rabbitUseSSL=false) {
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if ($rabbitUseSSL) {
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$ssl_opts=[
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// set some SSL/TLS specific options
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'verify_peer' => true,
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'verify_peer_name' => true,
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'allow_self_signed' => false
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];
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$connection = new AMQPSSLConnection($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass, $rabbitVirtualHost, $ssl_opts);
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} else {
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$connection = new AMQPStreamConnection($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass, $rabbitVirtualHost);
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}
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return $connection;
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}
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function scanner($channel, $port) {
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global $routingTag;
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$fp = @fopen($port, "rb+");
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if ($fp==null) {
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throw new Exception("Scanner failed. Is it connected?");
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} else {
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print "Scanner connected\n";
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if (!empty($routingTag)) {
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$msg = new AMQPMessage(json_encode(["type"=>"service","data"=>"scannerReady"]));
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$channel->basic_publish($msg, 'fox.barcode', $routingTag);
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}
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}
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while (1) {
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$buffer = fgets($fp, 4096);
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$rv=explode("\n", $buffer);
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if ($buffer === false) {
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if (!empty($routingTag)) {
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$msg = new AMQPMessage(json_encode(["type"=>"service","data"=>"scannerFailed"]));
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$channel->basic_publish($msg, 'fox.barcode', $routingTag);
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}
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throw new Exception("Stream read failed. Scanner disconnected?");
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}
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if (preg_match('/^fxc([0-9a-f]{20})xf$/', $buffer, $ref)) {
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print "Pairing request. Routing tag: $ref[1]\n";
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$routingTag=$ref[1];
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$msg = new AMQPMessage(json_encode(["type"=>"service","data"=>"scannerRegistered"]));
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$channel->basic_publish($msg, 'fox.barcode', $routingTag);
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} else {
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print "Read: $rv[0]";
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if (!empty($routingTag)) {
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$msg = new AMQPMessage(json_encode(["type"=>"code","data"=>$rv[0]]));
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$channel->basic_publish($msg, 'fox.barcode', $routingTag);
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print " [S]";
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} else {
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print " [-]";
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}
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print "\n";
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}
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}
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}
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