From 2e28269baed195d58bbe169841eed176b171db76 Mon Sep 17 00:00:00 2001
From: VirtualTam <virtualtam@flibidi.net>
Date: Wed, 11 Nov 2015 22:49:58 +0100
Subject: install: check file/directory permissions for Shaarli resources

Relates to #40
Relates to #372

Additions:
 - FileUtils: IOException
 - ApplicationUtils:
   - check if Shaarli resources are accessible with sufficient permissions
   - basic test coverage
 - index.php:
   - check access permissions and redirect to an error page if needed:
     - before running the first installation

Modifications:
 - LinkDB:
   - factorize datastore write code
   - check if the datastore
     (exists AND is writeable) OR (doesn't exist AND its parent dir is writable)
   - raise an IOException if needed

Signed-off-by: VirtualTam <virtualtam@flibidi.net>
---
 application/FileUtils.php | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 application/FileUtils.php

(limited to 'application/FileUtils.php')

diff --git a/application/FileUtils.php b/application/FileUtils.php
new file mode 100644
index 00000000..6a12ef0e
--- /dev/null
+++ b/application/FileUtils.php
@@ -0,0 +1,19 @@
+<?php
+/**
+ * Exception class thrown when a filesystem access failure happens
+ */
+class IOException extends Exception
+{
+    private $path;
+
+    /**
+     * Construct a new IOException
+     *
+     * @param string $path path to the ressource that cannot be accessed
+     */
+    public function __construct($path)
+    {
+        $this->path = $path;
+        $this->message = 'Error accessing '.$this->path;
+    }
+}
-- 
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