re-add library escpos

htdocs/includes/mike42/escpos-php/src/NetworkPrintConnector.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * escpos-php, a Thermal receipt printer library, for use with
+ * ESC/POS compatible printers.
+ *
+ * Copyright (c) 2014-2015 Michael Billington <michael.billington@gmail.com>,
+ * 	incorporating modifications by:
+ *  - Roni Saha <roni.cse@gmail.com>
+ *  - Gergely Radics <gerifield@ustream.tv>
+ *  - Warren Doyle <w.doyle@fuelled.co>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ * 
+ * PrintConnector for directly opening a network socket to a printer to send it commands.
+ */
+class NetworkPrintConnector extends FilePrintConnector {
+	public function __construct($ip, $port = "9100") {
+		$this -> fp = @fsockopen($ip, $port, $errno, $errstr);
+		if($this -> fp === false) {
+			throw new Exception("Cannot initialise NetworkPrintConnector: " . $errstr);
+		}
+	}
+}