add config ALLOW_ADMIN_EMAIL_LOGIN and implement password-less SOGo login admins

data/conf/nginx/site.conf

@@ -164,6 +164,17 @@ server {
     client_max_body_size 0;
   }
 
+  # auth_request endpoint if ALLOW_ADMIN_EMAIL_LOGIN is set
+  location /sogo-auth-verify {
+    internal;
+    proxy_set_header  X-Original-URI $request_uri;
+    proxy_set_header  X-Real-IP $remote_addr;
+    proxy_set_header  Host $http_host;
+    proxy_set_header  Content-Length "";
+    proxy_pass        http://127.0.0.1:80/sogo-auth;
+    proxy_pass_request_body off;
+  }
+
   location ^~ /SOGo {
     include /etc/nginx/conf.d/sogo.active;
     proxy_set_header X-Real-IP $remote_addr;