New init function for plugins, supports errors reporting

All plugins can optionally add an init function named `pluginname_init()` which is called when the plugin is loaded.

This function is aware of the config, and can return initialization errors, which are displayed in the header template.

Note that the previous error system hack no longer work.

3 files changed, 47 insertions, 8 deletions

diff --git a/plugins/demo_plugin/demo_plugin.php b/plugins/demo_plugin/demo_plugin.php
index 18834e53..7335c9d4 100644
--- a/plugins/demo_plugin/demo_plugin.php
+++ b/plugins/demo_plugin/demo_plugin.php
@@ -15,6 +15,23 @@
  */
 
 /**
+ * Initialization function.
+ * It will be called when the plugin is loaded.
+ * This function can be used to return a list of initialization errors.
+ *
+ * @param $conf ConfigManager instance.
+ *
+ * @return array List of errors (optional).
+ */
+function demo_plugin_init($conf)
+{
+    $conf->get('toto', 'nope');
+
+    $errors[] = 'This a demo init error.';
+    return $errors;
+}
+
+/**
  * Hook render_header.
  * Executed on every page redering.
  *
diff --git a/plugins/readityourself/readityourself.php b/plugins/readityourself/readityourself.php
index 4bfcf501..961c5bda 100644
--- a/plugins/readityourself/readityourself.php
+++ b/plugins/readityourself/readityourself.php
@@ -8,10 +8,21 @@
 // it seems kinda dead.
 // Not tested.
 
-$riyUrl = $conf->get('plugins.READITYOUSELF_URL');
-if (empty($riyUrl)) {
-    $GLOBALS['plugin_errors'][] = 'Readityourself plugin error: '.
-        'Please define the "READITYOUSELF_URL" setting in the plugin administration page.';
+/**
+ * Init function, return an error if the server is not set.
+ *
+ * @param $conf ConfigManager instance.
+ *
+ * @return array Eventual error.
+ */
+function readityourself_init($conf)
+{
+    $riyUrl = $conf->get('plugins.READITYOUSELF_URL');
+    if (empty($riyUrl)) {
+        $error = 'Readityourself plugin error: '.
+            'Please define the "READITYOUSELF_URL" setting in the plugin administration page.';
+        return array($error);
+    }
 }
 
 /**
diff --git a/plugins/wallabag/wallabag.php b/plugins/wallabag/wallabag.php
index ec09c8a1..641e4cc2 100644
--- a/plugins/wallabag/wallabag.php
+++ b/plugins/wallabag/wallabag.php
@@ -6,10 +6,21 @@
 
 require_once 'WallabagInstance.php';
 
-$wallabagUrl = $conf->get('plugins.WALLABAG_URL');
-if (empty($wallabagUrl)) {
-    $GLOBALS['plugin_errors'][] = 'Wallabag plugin error: '.
-        'Please define the "WALLABAG_URL" setting in the plugin administration page.';
+/**
+ * Init function, return an error if the server is not set.
+ *
+ * @param $conf ConfigManager instance.
+ *
+ * @return array Eventual error.
+ */
+function wallabag_init($conf)
+{
+    $wallabagUrl = $conf->get('plugins.WALLABAG_URL');
+    if (empty($wallabagUrl)) {
+        $error = 'Wallabag plugin error: '.
+            'Please define the "WALLABAG_URL" setting in the plugin administration page.';
+        return array($error);
+    }
 }
 
 /**