network: add trusted ips

This allows the user to set trusted ips to Cloudflare or some other CDN
and have the logs have the correct IPs.

fixes #801

src/paths.js

@@ -50,6 +50,7 @@ exports = module.exports = {
     FIREWALL_BLOCKLIST_FILE: path.join(baseDir(), 'platformdata/firewall/blocklist.txt'),
     LDAP_ALLOWLIST_FILE: path.join(baseDir(), 'platformdata/firewall/ldap_allowlist.txt'),
     REVERSE_PROXY_REBUILD_FILE: path.join(baseDir(), 'platformdata/nginx/rebuild-needed'),
+    NGINX_TRUSTED_IPS_FILE: path.join(baseDir(), 'platformdata/nginx/trusted.ips'),
 
     BOX_DATA_DIR: path.join(baseDir(), 'boxdata/box'),
     MAIL_DATA_DIR: path.join(baseDir(), 'boxdata/mail'),