Initial commit

Author: ttk

.gitignore

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+/vendor

README.md

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+## COM Port to WebService Proxy Tools
+
+These are some very simple tools to proxy data from a serial port on windows (COM) to a WebSocket so that
+a html page can read this data and act on them.
+
+The project is written in PHP and consists of two separate programs:
+
+`com2ip` - connects to a COM port and forwards the data to a local TCP port
+`ip2web` - Acts as the server.  Establishes listening ports for the raw TCP port and a WebSocket server.  This should be started first before anything else.
+
+# Installation
+
+You need to have php installed (preferrably 7.0+) and composer installed.  Then run `composer install` to download all the dependencies.

com2ip.php

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+<?php
+
+try {
+
+  if(count($argv)<2) throw new Exception("Invalid number of arguments");
+
+  if(preg_match('#^(?:COM)?(\d+)$#',$argv[1],$match)) $com = intval($match[1]);
+  else throw new Exception("Invalid COM port");
+
+  $tcp_port = 8081;
+  if(isset($argv[2])) {
+    if (preg_match('#^\d+$#', $argv[2], $match)) $tcp_port = intval($match[0]);
+    else throw new Exception("Invalid specified TCP port");
+  }
+
+  $comPath = "\\\\.\\COM{$com}";
+
+  $file = fopen($comPath, "r+b");
+  if (!$file) throw new Exception("Can't open COM$com port");
+
+  $fp = stream_socket_client("tcp://127.0.0.1:$tcp_port");
+  if(!$fp) throw new Exception("Can't open TCP port $tcp_port for writing");
+
+  print "All ports OPEN.  Proxying data.  Press CTRL-C to quit.\n";
+
+  while (true) {
+    $data = fgets($file);
+    $data = preg_replace('#\s#','',$data);
+    if($data == '0') continue;  // Filter out 0, since we aren't interested in those
+    if ($data===false) break;
+    fwrite($fp, $data);
+  }
+
+  fclose($file);
+  fclose($fp);
+}
+catch(Exception $e) {
+  print "Error: " . $e->getMessage() . "\n";
+  print "Usage: com2ip COMPORT IPPORT\n";
+  print "  COMPORT - The windows COM port to open.  Format: integer or COM#\n";
+  print "  IPPORT  - The socket tcp port to relay data to.  This port must be already listening for connections (default: 8081)\n";
+}

composer.json

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+{
+    "name": "ttk/com2web-proxy",
+    "description": "A COM port to WebSocket proxy",
+    "type": "project",
+    "authors": [
+        {
+            "name": "Tom Kaminski",
+            "email": "[email protected]"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "MyApp\\": "src"
+    }
+},
+"require": {
+        "cboden/ratchet": "^0.4.1"
+    }
+}