Merge pull request #570 from ArthurHoaro/config-manager

Introduce a configuration manager

1 files changed, 132 insertions, 0 deletions

diff --git a/application/config/ConfigPhp.php b/application/config/ConfigPhp.php
new file mode 100644
index 00000000..27187b66
--- /dev/null
+++ b/application/config/ConfigPhp.php
@@ -0,0 +1,132 @@
+<?php
+
+/**
+ * Class ConfigPhp (ConfigIO implementation)
+ *
+ * Handle Shaarli's legacy PHP configuration file.
+ * Note: this is only designed to support the transition to JSON configuration.
+ */
+class ConfigPhp implements ConfigIO
+{
+    /**
+     * @var array List of config key without group.
+     */
+    public static $ROOT_KEYS = array(
+        'login',
+        'hash',
+        'salt',
+        'timezone',
+        'title',
+        'titleLink',
+        'redirector',
+        'disablesessionprotection',
+        'privateLinkByDefault',
+    );
+
+    /**
+     * Map legacy config keys with the new ones.
+     * If ConfigPhp is used, getting <newkey> will actually look for <legacykey>.
+     * The Updater will use this array to transform keys when switching to JSON.
+     *
+     * @var array current key => legacy key.
+     */
+    public static $LEGACY_KEYS_MAPPING = array(
+        'credentials.login' => 'login',
+        'credentials.hash' => 'hash',
+        'credentials.salt' => 'salt',
+        'resource.data_dir' => 'config.DATADIR',
+        'resource.config' => 'config.CONFIG_FILE',
+        'resource.datastore' => 'config.DATASTORE',
+        'resource.updates' => 'config.UPDATES_FILE',
+        'resource.log' => 'config.LOG_FILE',
+        'resource.update_check' => 'config.UPDATECHECK_FILENAME',
+        'resource.raintpl_tpl' => 'config.RAINTPL_TPL',
+        'resource.raintpl_tmp' => 'config.RAINTPL_TMP',
+        'resource.thumbnails_cache' => 'config.CACHEDIR',
+        'resource.page_cache' => 'config.PAGECACHE',
+        'resource.ban_file' => 'config.IPBANS_FILENAME',
+        'security.session_protection_disabled' => 'disablesessionprotection',
+        'security.ban_after' => 'config.BAN_AFTER',
+        'security.ban_duration' => 'config.BAN_DURATION',
+        'general.title' => 'title',
+        'general.timezone' => 'timezone',
+        'general.header_link' => 'titleLink',
+        'updates.check_updates' => 'config.ENABLE_UPDATECHECK',
+        'updates.check_updates_branch' => 'config.UPDATECHECK_BRANCH',
+        'updates.check_updates_interval' => 'config.UPDATECHECK_INTERVAL',
+        'privacy.default_private_links' => 'privateLinkByDefault',
+        'feed.rss_permalinks' => 'config.ENABLE_RSS_PERMALINKS',
+        'general.links_per_page' => 'config.LINKS_PER_PAGE',
+        'thumbnail.enable_thumbnails' => 'config.ENABLE_THUMBNAILS',
+        'thumbnail.enable_localcache' => 'config.ENABLE_LOCALCACHE',
+        'general.enabled_plugins' => 'config.ENABLED_PLUGINS',
+        'redirector.url' => 'redirector',
+        'redirector.encode_url' => 'config.REDIRECTOR_URLENCODE',
+        'feed.show_atom' => 'config.SHOW_ATOM',
+        'privacy.hide_public_links' => 'config.HIDE_PUBLIC_LINKS',
+        'privacy.hide_timestamps' => 'config.HIDE_TIMESTAMPS',
+        'security.open_shaarli' => 'config.OPEN_SHAARLI',
+    );
+
+    /**
+     * @inheritdoc
+     */
+    function read($filepath)
+    {
+        if (! file_exists($filepath) || ! is_readable($filepath)) {
+            return array();
+        }
+
+        include $filepath;
+
+        $out = array();
+        foreach (self::$ROOT_KEYS as $key) {
+            $out[$key] = $GLOBALS[$key];
+        }
+        $out['config'] = $GLOBALS['config'];
+        $out['plugins'] = !empty($GLOBALS['plugins']) ? $GLOBALS['plugins'] : array();
+        return $out;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    function write($filepath, $conf)
+    {
+        $configStr = '<?php '. PHP_EOL;
+        foreach (self::$ROOT_KEYS as $key) {
+            if (isset($conf[$key])) {
+                $configStr .= '$GLOBALS[\'' . $key . '\'] = ' . var_export($conf[$key], true) . ';' . PHP_EOL;
+            }
+        }
+        
+        // Store all $conf['config']
+        foreach ($conf['config'] as $key => $value) {
+            $configStr .= '$GLOBALS[\'config\'][\''. $key .'\'] = '.var_export($conf['config'][$key], true).';'. PHP_EOL;
+        }
+
+        if (isset($conf['plugins'])) {
+            foreach ($conf['plugins'] as $key => $value) {
+                $configStr .= '$GLOBALS[\'plugins\'][\''. $key .'\'] = '.var_export($conf['plugins'][$key], true).';'. PHP_EOL;
+            }
+        }
+
+        if (!file_put_contents($filepath, $configStr)
+            || strcmp(file_get_contents($filepath), $configStr) != 0
+        ) {
+            throw new IOException(
+                $filepath,
+                'Shaarli could not create the config file.
+                Please make sure Shaarli has the right to write in the folder is it installed in.'
+            );
+        }
+    }
+
+    /**
+     * @inheritdoc
+     */
+    function getExtension()
+    {
+        return '.php';
+    }
+}