--- /dev/null
+<?php
+
+/**
+ * Plugin Isso.
+ */
+
+/**
+ * Display an error everywhere if the plugin is enabled without configuration.
+ *
+ * @param $data array List of links
+ * @param $conf ConfigManager instance
+ *
+ * @return mixed - linklist data with Isso plugin.
+ */
+function isso_init($conf)
+{
+ $issoUrl = $conf->get('plugins.ISSO_SERVER');
+ if (empty($issoUrl)) {
+ $error = 'Isso plugin error: '.
+ 'Please define the "ISSO_SERVER" setting in the plugin administration page.';
+ return array($error);
+ }
+}
+
+/**
+ * Render linklist hook.
+ * Will only display Isso comments on permalinks.
+ *
+ * @param $data array List of links
+ * @param $conf ConfigManager instance
+ *
+ * @return mixed - linklist data with Isso plugin.
+ */
+function hook_isso_render_linklist($data, $conf)
+{
+ $issoUrl = $conf->get('plugins.ISSO_SERVER');
+ if (empty($issoUrl)) {
+ return $data;
+ }
+
+ // Only display comments for permalinks.
+ if (count($data['links']) == 1 && empty($data['search_tags']) && empty($data['search_term'])) {
+ $link = reset($data['links']);
+ $isso_html = file_get_contents(PluginManager::$PLUGINS_PATH . '/isso/isso.html');
+
+ $isso = sprintf($isso_html, $issoUrl, $issoUrl, $link['linkdate'], $link['linkdate']);
+ $data['plugin_end_zone'][] = $isso;
+
+ // Hackish way to include this CSS file only when necessary.
+ $data['plugins_includes']['css_files'][] = PluginManager::$PLUGINS_PATH . '/isso/isso.css';
+ }
+
+ return $data;
+}