update Piwik to version 2.16 (fixes #91)

www/analytics/core/Application/Kernel/GlobalSettingsProvider.php

@@ -0,0 +1,111 @@
+<?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\Application\Kernel;
+
+use Piwik\Config;
+use Piwik\Config\IniFileChain;
+
+/**
+ * Provides global settings. Global settings are organized in sections where
+ * each section contains a list of name => value pairs. Setting values can
+ * be primitive values or arrays of primitive values.
+ *
+ * Uses the config.ini.php, common.ini.php and global.ini.php files to provide global settings.
+ *
+ * At the moment a singleton instance of this class is used in order to get tests to pass.
+ */
+class GlobalSettingsProvider
+{
+    /**
+     * @var IniFileChain
+     */
+    protected $iniFileChain;
+
+    /**
+     * @var string
+     */
+    protected $pathGlobal = null;
+
+    /**
+     * @var string
+     */
+    protected $pathCommon = null;
+
+    /**
+     * @var string
+     */
+    protected $pathLocal = null;
+
+    /**
+     * @param string|null $pathGlobal Path to the global.ini.php file. Or null to use the default.
+     * @param string|null $pathLocal Path to the config.ini.php file. Or null to use the default.
+     * @param string|null $pathCommon Path to the common.ini.php file. Or null to use the default.
+     */
+    public function __construct($pathGlobal = null, $pathLocal = null, $pathCommon = null)
+    {
+        $this->pathGlobal = $pathGlobal ?: Config::getGlobalConfigPath();
+        $this->pathCommon = $pathCommon ?: Config::getCommonConfigPath();
+        $this->pathLocal = $pathLocal ?: Config::getLocalConfigPath();
+
+        $this->iniFileChain = new IniFileChain();
+        $this->reload();
+    }
+
+    public function reload($pathGlobal = null, $pathLocal = null, $pathCommon = null)
+    {
+        $this->pathGlobal = $pathGlobal ?: $this->pathGlobal;
+        $this->pathCommon = $pathCommon ?: $this->pathCommon;
+        $this->pathLocal = $pathLocal ?: $this->pathLocal;
+
+        $this->iniFileChain->reload(array($this->pathGlobal, $this->pathCommon), $this->pathLocal);
+    }
+
+    /**
+     * Returns a settings section.
+     *
+     * @param string $name
+     * @return array
+     */
+    public function &getSection($name)
+    {
+        $section =& $this->iniFileChain->get($name);
+        return $section;
+    }
+
+    /**
+     * Sets a settings section.
+     *
+     * @param string $name
+     * @param array $value
+     */
+    public function setSection($name, $value)
+    {
+        $this->iniFileChain->set($name, $value);
+    }
+
+    public function getIniFileChain()
+    {
+        return $this->iniFileChain;
+    }
+
+    public function getPathGlobal()
+    {
+        return $this->pathGlobal;
+    }
+
+    public function getPathLocal()
+    {
+        return $this->pathLocal;
+    }
+
+    public function getPathCommon()
+    {
+        return $this->pathCommon;
+    }
+}