From 6f830b22ba3fd5a89c56177165a53e8fa94ff9c0 Mon Sep 17 00:00:00 2001
From: Roland Haeder <roland@mxchange.org>
Date: Sat, 4 Jul 2015 06:16:40 +0200
Subject: [PATCH] Make sure the path can be written to.
MIME-Version: 1.0
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Signed-off-by: Roland Häder <roland@mxchange.org>
---
 .../class_PathWriteProtectedException.php     | 42 +++++++++++++++++++
 .../class_FrameworkFileInputOutputPointer.php |  4 ++
 2 files changed, 46 insertions(+)
 create mode 100644 inc/classes/exceptions/file_directory/class_PathWriteProtectedException.php

diff --git a/inc/classes/exceptions/file_directory/class_PathWriteProtectedException.php b/inc/classes/exceptions/file_directory/class_PathWriteProtectedException.php
new file mode 100644
index 00000000..67b8bf0e
--- /dev/null
+++ b/inc/classes/exceptions/file_directory/class_PathWriteProtectedException.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * An exception thrown when a path cannot be written to.
+ *
+ * @author		Roland Haeder <webmaster@shipsimu.org>
+ * @version		0.0.0
+ * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team
+ * @license		GNU GPL 3.0 or any newer version
+ * @link		http://www.shipsimu.org
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+class FileWriteProtectedException extends FrameworkException {
+	/**
+	 * The constructor
+	 *
+	 * @param	$fqfn	Full-qualified file name
+	 * @param	$code	Code number for the exception
+	 * @return	void
+	 */
+	public function __construct ($fqfn, $code) {
+		// Add a message around the missing class
+		$message = sprintf('Path %s cannot be written to. Please check permissions.', dirname($fqfn));
+
+		// Call parent constructor
+		parent::__construct($message, $code);
+	}
+}
+
+// [EOF]
+?>
diff --git a/inc/classes/main/file_directories/io/class_FrameworkFileInputOutputPointer.php b/inc/classes/main/file_directories/io/class_FrameworkFileInputOutputPointer.php
index 08ac7811..ae372f35 100644
--- a/inc/classes/main/file_directories/io/class_FrameworkFileInputOutputPointer.php
+++ b/inc/classes/main/file_directories/io/class_FrameworkFileInputOutputPointer.php
@@ -41,6 +41,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 * @throws	FileIsEmptyException		If the given file name is NULL or empty
 	 * @throws	FileReadProtectedException	If PHP cannot read an existing file
 	 * @throws	FileWriteProtectedException	If PHP cannot write an existing file
+	 * @throws	PathWriteProtectedException	If PHP cannot write to an existing path
 	 * @throws	FileIoException				If fopen() returns not a file resource
 	 */
 	public static final function createFrameworkFileInputOutputPointer ($fileName) {
@@ -57,6 +58,9 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		} elseif ((file_exists($fileName)) && (!is_writable($fileName))) {
 			// File exists but cannot be written
 			throw new FileWriteProtectedException($fileName, self::EXCEPTION_FILE_CANNOT_BE_WRITTEN);
+		} elseif (!is_writable(dirname($fileName))) {
+			// Path is not writable
+			throw new PathWriteProtectedException($fileName, self::EXCEPTION_PATH_CANNOT_BE_WRITTEN);
 		}
 
 		// Try to open a handler
-- 
2.39.5