update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/Diagnostics/Diagnostic/WriteAccessCheck.php

@@ -0,0 +1,99 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+namespace Piwik\Plugins\Diagnostics\Diagnostic;
+
+use Piwik\DbHelper;
+use Piwik\Filechecks;
+use Piwik\Translation\Translator;
+
+/**
+ * Check the permissions for some directories.
+ */
+class WriteAccessCheck implements Diagnostic
+{
+    /**
+     * @var Translator
+     */
+    private $translator;
+
+    /**
+     * Path to the temp directory.
+     * @var string
+     */
+    private $tmpPath;
+
+    /**
+     * @param Translator $translator
+     * @param string $tmpPath Path to the temp directory.
+     */
+    public function __construct(Translator $translator, $tmpPath)
+    {
+        $this->translator = $translator;
+        $this->tmpPath = $tmpPath;
+    }
+
+    public function execute()
+    {
+        $label = $this->translator->translate('Installation_SystemCheckWriteDirs');
+
+        $result = new DiagnosticResult($label);
+
+        $directories = Filechecks::checkDirectoriesWritable($this->getDirectories());
+
+        $error = false;
+        foreach ($directories as $directory => $isWritable) {
+            if ($isWritable) {
+                $status = DiagnosticResult::STATUS_OK;
+            } else {
+                $status = DiagnosticResult::STATUS_ERROR;
+                $error = true;
+            }
+
+            $result->addItem(new DiagnosticResultItem($status, $directory));
+        }
+
+        if ($error) {
+            $longErrorMessage = $this->translator->translate('Installation_SystemCheckWriteDirsHelp');
+            $longErrorMessage .= '<ul>';
+            foreach ($directories as $directory => $isWritable) {
+                if (! $isWritable) {
+                    $longErrorMessage .= sprintf('<li><pre>chmod a+w %s</pre></li>', $directory);
+                }
+            }
+            $longErrorMessage .= '</ul>';
+            $result->setLongErrorMessage($longErrorMessage);
+        }
+
+        return array($result);
+    }
+
+    /**
+     * @return string[]
+     */
+    private function getDirectories()
+    {
+        $directoriesToCheck = array(
+            $this->tmpPath,
+            $this->tmpPath . '/assets/',
+            $this->tmpPath . '/cache/',
+            $this->tmpPath . '/climulti/',
+            $this->tmpPath . '/latest/',
+            $this->tmpPath . '/logs/',
+            $this->tmpPath . '/sessions/',
+            $this->tmpPath . '/tcpdf/',
+            $this->tmpPath . '/templates_c/',
+        );
+
+        if (! DbHelper::isInstalled()) {
+            // at install, need /config to be writable (so we can create config.ini.php)
+            $directoriesToCheck[] = '/config/';
+        }
+
+        return $directoriesToCheck;
+    }
+}