README.md

@@ -1,2 +1,10 @@
 # foxBarcodeScannerClient
 
+Клиент для работы со сканером штрих-кода через последовательный порт. Клиент получает данные со сканера и отправляет в очередь RabbitMQ, указанную при регистрации. Регистрация происходит через считывания специального штрих-кода.
+
+## Параметры конфигурации
+* SCANNER_PORT - /dev/ttyACM0
+* RABBITMQ_HOST
+* RABBITMQ_USER
+* RABBITMQ_PASSWORD
+* RABBITMQ_USE_SSL

barcodeScanner.php

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+<?php
+
+require_once(__DIR__.'/../../Autoloader.php');
+use fox\foxException;
+use PhpAmqpLib\Connection\AMQPStreamConnection;
+use PhpAmqpLib\Connection\AMQPSSLConnection;
+use PhpAmqpLib\Message\AMQPMessage;
+
+
+$lineReadTimeout=1;
+
+$port=getenv("SCANNER_PORT");// "/dev/ttyACM0";
+$rabbitHost=getenv("RABBITMQ_HOST"); // "rabbitmq";
+$rabbitPort=getenv("RABBITMQ_PORT")?getenv("RABBITMQ_PORT"):5672;
+$rabbitLogin=getenv("RABBITMQ_USER");//'guest';
+$rabbitPass=getenv("RABBITMQ_PASSWORD"); //'guest';
+$rabbitUseSSL=getenv("RABBITMQ_USE_SSL")==="true"; // false;
+
+$routingTag=null;
+$connection=null;
+$channel=null;
+
+
+while(1) {
+    try {
+        $connection=rabbitConnect($rabbitHost,$rabbitPort,$rabbitLogin,$rabbitPass,$rabbitUseSSL);
+        $channel=$connection->channel();
+        scanner($channel,$port);
+    } catch (Exception $e) {
+        print "Exception ".$e->getMessage()."\n";
+        $channel->close();
+        $connection->close();
+        $s=rand(5,15);
+        print "Sleep $s seconds..";
+        sleep($s);
+        print "Ok\n";
+    }
+}
+
+function rabbitConnect($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass, $rabbitUseSSL=false) {
+    if ($rabbitUseSSL) {
+        $ssl_opts=[
+            // set some SSL/TLS specific options
+            'verify_peer' => true,
+            'verify_peer_name' => true,
+            'allow_self_signed' => false
+        ];
+    
+        $connection = new AMQPSSLConnection($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass,'/',$ssl_opts);
+    } else {
+        $connection = new AMQPStreamConnection($rabbitHost, $rabbitPort, $rabbitLogin, $rabbitPass);
+    }
+    return $connection;
+}
+
+function scanner($channel, $port) {
+    global $routingTag;
+
+    $fp = @fopen($port, "rb+");
+    if ($fp==null) {
+        throw new Exception("Scanner failed. Is it connected?");
+    } else {
+        print "Scanner connected\n";
+        if (!empty($routingTag)) {
+            $msg = new AMQPMessage(json_encode(["type"=>"service","data"=>"scannerReady"]));
+            $channel->basic_publish($msg, 'fox.barcode', $routingTag);
+        }
+
+    }
+    while(1) {
+        $buffer = fgets($fp,4096); 
+        $rv=explode("\n",$buffer);
+        if ($buffer === false) {
+            if (!empty($routingTag)) {
+                $msg = new AMQPMessage(json_encode(["type"=>"service","data"=>"scannerFailed"]));
+                $channel->basic_publish($msg, 'fox.barcode', $routingTag);
+            }
+            throw new Exception("Stream read failed. Scanner disconnected?");
+        }
+        
+        if (preg_match('/^fxc([0-9a-f]{20})xf$/',$buffer,$ref)) {
+            print "Pairing request. Routing tag: $ref[1]\n";
+            $routingTag=$ref[1];
+            $msg = new AMQPMessage(json_encode(["type"=>"service","data"=>"scannerRegistered"]));
+            $channel->basic_publish($msg, 'fox.barcode', $routingTag);
+
+        } else {
+            print "Read: $rv[0]";
+            if (!empty($routingTag)) {
+                $msg = new AMQPMessage(json_encode(["type"=>"code","data"=>$rv[0]]));
+                $channel->basic_publish($msg, 'fox.barcode', $routingTag);
+            
+                print " [S]";    
+            } else {
+                print " [-]";
+            }
+            print "\n";
+        }
+    }
+}

composer.json

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+{
+	"require" : {
+		"php-amqplib/php-amqplib": ">=3.0"
+	}
+}