Merge branch 'feature-19172/Abgabetool_digitale_signatur_pruefen'

application/libraries/SignatureLib.php

@@ -0,0 +1,75 @@
+<?php
+/**
+ *  Copyright (C) 2022 fhcomplete.net
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+require_once(dirname(__FILE__).'/../../vendor/nategood/httpful/bootstrap.php');
+
+/**
+ * Simple client to call the signature server
+ */
+class SignatureLib
+{
+	// -------------------------------------------------------------------------------------------------
+	// Public static methods
+
+	/**
+	 * Returns the list of signature inside the given file
+	 */
+	public static function list($inputFileName)
+	{
+		try
+		{
+			// Get the content of the given file
+			$inputFileContent = file_get_contents($inputFileName);
+			if ($inputFileContent === false) // if failed
+			{
+				error_log('An error occurred while getting the content from: '.$inputFileName);
+			}
+			else
+			{
+				// Posts the given file content + file name and expects a response in JSON format
+				$resultPost = \Httpful\Request::post(SIGNATUR_URL.'/'.SIGNATUR_LIST_API)
+					->sendsJson()
+					->authenticateWith(SIGNATUR_USER, SIGNATUR_PASSWORD)
+					->body('{"filename": "'.basename($inputFileName).'", "content": "'.base64_encode($inputFileContent).'"}')
+					->expectsJson()
+					->send();
+			}
+		}
+		catch(\Httpful\Exception\ConnectionErrorException $cee) // Httpful exception
+		{
+			error_log($cee->getMessage());
+		}
+		catch (Exception $e) // any other exception
+		{
+			error_log($e->getMessage());
+		}
+
+		// If the response is fine
+		if (isset($resultPost->body) && is_object($resultPost->body)
+			&& isset($resultPost->body->retval) && is_array($resultPost->body->retval))
+		{
+			return $resultPost->body->retval;
+		}
+
+		// Otherwise return a null as error
+		return null;
+	}
+}
+