From 41ccb6fc3dbaea35cbf8c12cdbf05e5c11b37f08 Mon Sep 17 00:00:00 2001
From: CiviCRM <info@civicrm.org>
Date: Sun, 3 Jan 2016 17:42:45 -0800
Subject: [PATCH] System.get API - Return whitelisted settings

---
 api/v3/System.php                   | 24 ++++++++++++++---
 api/v3/System/setting-whitelist.txt | 41 +++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+), 3 deletions(-)
 create mode 100644 api/v3/System/setting-whitelist.txt

diff --git a/api/v3/System.php b/api/v3/System.php
index ad9b271d80..712d80e231 100644
--- a/api/v3/System.php
+++ b/api/v3/System.php
@@ -259,9 +259,8 @@ function civicrm_api3_system_get($params) {
           CRM_Extension_System::singleton()->getManager()->getStatuses(),
           PREG_GREP_INVERT
         ),
-        'domains' => CRM_Core_DAO::singleValueQuery('SELECT count(*) FROM civicrm_domain'),
-        'languageLimit' => CRM_Core_Config::singleton()->languageLimit,
-        'lcMessages' => CRM_Core_Config::singleton()->lcMessages,
+        'multidomain' => CRM_Core_DAO::singleValueQuery('SELECT count(*) FROM civicrm_domain') > 1,
+        'settings' => _civicrm_api3_system_get_redacted_settings(),
         'exampleUrl' => CRM_Utils_System::url('civicrm/example', NULL, TRUE, NULL, FALSE),
       ),
       'http' => array(
@@ -349,6 +348,25 @@ function _civicrm_api3_system_get_redacted_mysql() {
   return $result;
 }
 
+function _civicrm_api3_system_get_redacted_settings() {
+  static $whitelist = NULL;
+  if ($whitelist === NULL) {
+    $whitelist = _civicrm_api3_system_get_whitelist(__DIR__ . '/System/setting-whitelist.txt');
+  }
+
+  $apiResult = civicrm_api3('Setting', 'get', array());
+  $result = array();
+  foreach ($apiResult['values'] as $settings) {
+    foreach ($settings as $key => $value) {
+      if (in_array($key, $whitelist)) {
+        $result[$key] = $value;
+      }
+    }
+  }
+
+  return $result;
+}
+
 /**
  * Read a whitelist.
  *
diff --git a/api/v3/System/setting-whitelist.txt b/api/v3/System/setting-whitelist.txt
new file mode 100644
index 0000000000..5f4b74bd9b
--- /dev/null
+++ b/api/v3/System/setting-whitelist.txt
@@ -0,0 +1,41 @@
+## As a rule of thumb, we include booleans/integer/enum settings
+## but omit free-form settings which could include identifying info.
+ajaxPopupsEnabled
+allowPermDeleteFinancial
+backtrace
+civimail_multiple_bulk_emails
+civimail_server_wide_lock
+civimail_workflow
+contact_ajax_check_similar
+contact_undelete
+debug_enabled
+disable_core_css
+disable_mandatory_tokens_check
+editor_id
+enableSSL
+enable_cart
+enable_innodb_fts
+fts_query_mode
+includeAlphabeticalPager
+includeEmailInName
+includeNickNameInName
+includeOrderByClause
+includeWildCardInName
+inheritLocale
+languageLimit
+lcMessages
+legacyEncoding
+logging
+mailThrottleTime
+mailerBatchLimit
+mailerJobSize
+mailerJobsMax
+maxFileSize
+max_attachments
+replyTo
+secondDegRelPermissions
+securityAlert
+smartGroupCacheTimeout
+track_civimail_replies
+uniq_email_per_site
+verifySSL
-- 
2.25.1