Implement Twitter Cards and Open Graph meta headers - refs #7536

main/inc/lib/template.lib.php

@@ -885,6 +885,35 @@ class Template
                 'X-Powered-By: '.$_configuration['software_name'].' '.substr($_configuration['system_version'], 0, 1)
             );
         //}
+
+        $socialMeta = '';
+        $metaTitle = api_get_setting('meta_title');
+        if (!empty($metaTitle)) {
+            $socialMeta .= '<meta name="twitter:card" content="summary" />' . "\n";
+            $socialMeta .= '<meta property="og:title" content="' . $metaTitle . '" />' . "\n";
+            $socialMeta .= '<meta property="og:url" content="' . api_get_path(WEB_PATH) . '" />' . "\n";
+            $metaDescription = api_get_setting('meta_description');
+            if (!empty($metaDescription)) {
+                $socialMeta .= '<meta property="og:description" content="' . $metaDescription . '" />' . "\n";
+            }
+            $metaSite = api_get_setting('meta_twitter_site');
+            if (!empty($metaSite)) {
+                $socialMeta .= '<meta name="twitter:site" content="' . $metaSite . '" />' . "\n";
+                $metaCreator = api_get_setting('meta_twitter_creator');
+                if (!empty($metaCreator)) {
+                    $socialMeta .= '<meta name="twitter:creator" content="' . $metaCreator . '" />' . "\n";
+                }
+            }
+            $metaImage = api_get_setting('meta_image_path');
+            if (!empty($metaImage)) {
+                if (is_file(api_get_path(SYS_PATH) . $metaImage)) {
+                    $path = api_get_path(WEB_PATH) . $metaImage;
+                    $socialMeta .= '<meta property="og:image" content="' . $path . '" />' . "\n";
+                }
+            }
+        }
+
+        $this->assign('social_meta', $socialMeta);
     }
 
     /**

main/install/database.sql

@@ -887,6 +887,11 @@ VALUES
 ('prevent_session_admins_to_manage_all_users', NULL, 'radio', 'Session', 'false', 'PreventSessionAdminsToManageAllUsersTitle', 'PreventSessionAdminsToManageAllUsersComment', NULL, NULL, 1),
 ('documents_default_visibility_defined_in_course', NULL,'radio','Tools','false','DocumentsDefaultVisibilityDefinedInCourseTitle','DocumentsDefaultVisibilityDefinedInCourseComment',NULL, NULL, 1),
 ('enabled_mathjax', NULL, 'radio', 'Editor', 'false', 'EnableMathJaxTitle', 'EnableMathJaxComment', NULL, NULL, 0),
+('meta_twitter_site', NULL, 'textfield', 'Tracking', '', 'MetaTwitterSiteTitle', 'MetaTwitterSiteComment', NULL, NULL, 1),
+('meta_twitter_creator', NULL, 'textfield', 'Tracking', '', 'MetaTwitterCreatorTitle', 'MetaTwitterCreatorComment', NULL, NULL, 1),
+('meta_title', NULL, 'textfield', 'Tracking', '', 'MetaTitleTitle', 'MetaTitleComment', NULL, NULL, 1),
+('meta_description', NULL, 'textfield', 'Tracking', '', 'MetaDescriptionTitle', 'MetaDescriptionComment', NULL, NULL, 1),
+('meta_image_path', NULL, 'textfield', 'Tracking', '', 'MetaImagePathTitle', 'MetaImagePathComment', NULL, NULL, 1),
 ('chamilo_database_version', NULL, 'textfield',NULL, '0', 'DatabaseVersion','', NULL, NULL, 0);
 UNLOCK TABLES;
 /*!40000 ALTER TABLE settings_current ENABLE KEYS */;

main/install/migrate-db-1.9.0-1.10.0-pre.sql

@@ -104,6 +104,14 @@ ALTER TABLE session MODIFY COLUMN name char(100) NOT NULL DEFAULT '';
 ALTER TABLE track_e_default MODIFY COLUMN c_id int default NULL;
 UPDATE course_field SET field_type = 1 WHERE field_variable = 'special_course';
 
+-- v1.10.0.34
+INSERT INTO settings_current (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) VALUES ('meta_twitter_site', NULL, 'textfield', 'Tracking', '', 'MetaTwitterSiteTitle', 'MetaTwitterSiteComment', NULL, NULL, 1);
+INSERT INTO settings_current (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) VALUES ('meta_twitter_creator', NULL, 'textfield', 'Tracking', '', 'MetaTwitterCreatorTitle', 'MetaTwitterCreatorComment', NULL, NULL, 1);
+INSERT INTO settings_current (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) VALUES ('meta_title', NULL, 'textfield', 'Tracking', '', 'MetaTitleTitle', 'MetaTitleComment', NULL, NULL, 1);
+INSERT INTO settings_current (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) VALUES ('meta_description', NULL, 'textfield', 'Tracking', '', 'MetaDescriptionTitle', 'MetaDescriptionComment', NULL, NULL, 1);
+INSERT INTO settings_current (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) VALUES ('meta_image_path', NULL, 'textfield', 'Tracking', '', 'MetaImagePathTitle', 'MetaImagePathComment', NULL, NULL, 1);
+
+
 -- Course DB changes (c_*)
 
 ALTER TABLE c_survey ADD COLUMN visible_results INT UNSIGNED DEFAULT 0;
@@ -123,4 +131,4 @@ CREATE TABLE IF NOT EXISTS c_attendance_calendar_rel_group (id int NOT NULL auto
 
 
 -- Do not move this query
-UPDATE settings_current SET selected_value = '1.10.0.33' WHERE variable = 'chamilo_database_version';
+UPDATE settings_current SET selected_value = '1.10.0.34' WHERE variable = 'chamilo_database_version';

main/template/default/layout/head.tpl

@@ -12,6 +12,7 @@
 {#  Improve usability in portal devices #}
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>{{ title_string }}</title>
+{{ social_meta }}
 {{ css_static_file_to_string }}
 {{ js_file_to_string }}
 <script>