Config option to always allow users to delete their accounts

Bug 1281364

Change-Id: Icd51e651b9caed278fd1074a15e177996a9fffac

htdocs/auth/user.php

@@ -1203,6 +1203,11 @@ class User {
 
     public function can_delete_self() {
         if (!$this->get('admin')) {
+
+            if (get_config('alwaysallowselfdelete')) {
+                return true;
+            }
+
             // Users who belong to an institution that doesn't allow
             // registration cannot delete themselves.
             foreach ($this->get('institutions') as $i) {

htdocs/lib/config-defaults.php

@@ -577,3 +577,10 @@ $cfg->usersuniquebyusername = false;
  * @global bool $cfg->publicsearchallowed Activates the display of the search box for logged-out users
  */
 $cfg->publicsearchallowed = false;
+
+/**
+ * @global bool $cfg->alwaysallowselfdelete Set this to "true" to allow all users on the site to delete
+ * their accounts. Leave on the default "false" to only allow users to delete their accounts if they
+ * belong to an institution that allows self-registration.
+ */
+//$cfg->alwaysallowselfdelete = true;
\ No newline at end of file