Refactor fetching header for difference between applet and transaction mode.

Improve locale_strings map by re json.encode.
Add method to put translation jsons into txn var and read with a json_query fetch inside template files not served by a lua view e.g. maintenance page

haproxy/haproxy.cfg

@@ -76,14 +76,14 @@ frontend http-in
 	acl ddos_mode_enabled base,map(/etc/haproxy/map/ddos.map) -m bool
 
 	# serve challenge page scripts directly from haproxy
-	http-request return file /etc/haproxy/js/auto.min.js status 200 content-type "application/javascript; charset=utf-8" hdr "cache-control" "public, max-age=86400" if { path /.basedflare/js/auto.min.js }
-	http-request return file /etc/haproxy/js/argon2.min.js status 200 content-type "application/javascript; charset=utf-8" hdr "cache-control" "public, max-age=86400" if { path /.basedflare/js/argon2.min.js }
-	http-request return file /etc/haproxy/js/challenge.js status 200 content-type "application/javascript; charset=utf-8" hdr "cache-control" "public, max-age=86400" if { path /.basedflare/js/challenge.min.js }
-	http-request return file /etc/haproxy/js/worker.min.js status 200 content-type "application/javascript; charset=utf-8" hdr "cache-control" "public, max-age=86400" if { path /.basedflare/js/worker.min.js }
+	http-request return file /etc/haproxy/js/auto.min.js status 200 content-type "application/javascript; charset=utf-8" hdr "Cache-Control" "public, max-age=86400" if { path /.basedflare/js/auto.min.js }
+	http-request return file /etc/haproxy/js/argon2.min.js status 200 content-type "application/javascript; charset=utf-8" hdr "Cache-Control" "public, max-age=86400" if { path /.basedflare/js/argon2.min.js }
+	http-request return file /etc/haproxy/js/challenge.js status 200 content-type "application/javascript; charset=utf-8" hdr "Cache-Control" "public, max-age=86400" if { path /.basedflare/js/challenge.min.js }
+	http-request return file /etc/haproxy/js/worker.min.js status 200 content-type "application/javascript; charset=utf-8" hdr "Cache-Control" "public, max-age=86400" if { path /.basedflare/js/worker.min.js }
 
 	# acl for domains in maintenance mode to return maintenance page (after challenge page htp-request return rules, for the footerlogo)
 	acl maintenance_mode hdr(host),lower,map_str(/etc/haproxy/map/maintenance.map) -m found
-	http-request return lf-file /etc/haproxy/template/maintenance.html status 200 content-type "text/html; charset=utf-8" hdr "cache-control" "private, max-age=30" if maintenance_mode
+	use_backend maintenance if maintenance_mode
 
 	# rewrite specific domain+path to domain or domain+path
 	http-request redirect location https://%[base,map(/etc/haproxy/map/rewrite.map)] code 302 if { base,map(/etc/haproxy/map/rewrite.map) -i -m found }
@@ -114,18 +114,39 @@ frontend http-in
 	# simple example cache for files
 	http-request set-var(txn.path) path
 	acl can_cache var(txn.path) -i -m end .png .jpg .jpeg .jpe .ico .webmanifest .xml .apng .bmp .webp .pjpeg .jfif .gif .mp4 .webm .mov .mkv .svg .m4a .aac .flac .mp3 .ogg .wav .opus .txt .pdf .sid
-	http-request cache-use basic_cache if can_cache
-	http-response cache-store basic_cache if can_cache
+
 
 	# optional alt-svc header (done after cache so not set in cached responses
 	http-response set-header Alt-Svc %[var(txn.xcn),map(/etc/haproxy/map/alt-svc.map)]
 
+	acl c0 res.hdr(Cache-Control,0) -m sub max-age=0
+	acl c0 res.hdr(Cache-Control,1) -m sub max-age=0
+	acl c0 res.hdr(Cache-Control,2) -m sub max-age=0
+	acl cf0 res.fhdr(Cache-Control,0) -m sub max-age=0
+	acl cf0 res.fhdr(Cache-Control,1) -m sub max-age=0
+	acl cf0 res.fhdr(Cache-Control,2) -m sub max-age=0
+	http-response set-header X-c0 true if c0
+	http-response set-header X-cf0 true if cf0
+	http-response set-header X-res-hdr0-Cache-Control %[res.hdr(Cache-Control,0)]
+	http-response set-header X-res-hdr1-Cache-Control %[res.hdr(Cache-Control,1)]
+	http-response set-header X-res-hdr2-Cache-Control %[res.hdr(Cache-Control,2)]
+	http-response set-header X-res-fhdr0-Cache-Control %[res.fhdr(Cache-Control,0)]
+	http-response set-header X-res-fhdr1-Cache-Control %[res.fhdr(Cache-Control,1)]
+	http-response set-header X-res-fhdr2-Cache-Control %[res.fhdr(Cache-Control,2)]
+	
+	http-request cache-use basic_cache
+	http-response cache-store basic_cache
 	default_backend servers
 
 cache basic_cache
-	total-max-size 2500
+	total-max-size 250
 	max-object-size 31457280
 	max-age 86400
+	process-vary on
+
+backend maintenance
+	http-request lua.set-lang-json
+	http-request return lf-file /etc/haproxy/template/maintenance.html status 200 content-type "text/html; charset=utf-8" hdr "Cache-Control" "private, max-age=30"
 
 backend servers
 	balance leastconn

haproxy/map/hosts.map

@@ -1,2 +1,2 @@
 127.0.0.1 127.0.0.1:81
-localhost 127.0.0.1:81
+localhost 127.0.0.1:8200

haproxy/map/maintenance.map

@@ -0,0 +1 @@
+localhost admin

haproxy/template/maintenance.html

@@ -2,7 +2,7 @@
 <html>
 	<head>
 		<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
-		<title>Maintenance Mode</title>
+		<title>%[var(txn.lang_json),json_query($.Maintenance Mode)]</title>
 		<style type="text/css">
 :root{--text-color:#c5c8c6;--bg-color:#1d1f21}
 @media (prefers-color-scheme:light){:root{--text-color:#333;--bg-color:#fff}}
@@ -18,11 +18,11 @@ footer{font-size:x-small;margin-top:auto;padding:10px;text-align:center;border-t
 	<body>
 		<h3 class="pt">
 			<img src="/.basedflare/pow-icon" width="64" height="64" alt=" ">
-			Under maintenance. Please try again soon!
+			%[var(txn.lang_json),json_query($.Under maintenance\. Please try again soon!)]
 		</h3>
 		<footer>
 			<p>Node: <code>%[env(RAY_ID)]</code></p>
-			<p>Performance & security by <a href="https://basedflare.com" rel="noreferrer noopener" target="_blank">BasedFlare</a></p>
+			<p>%[var(txn.lang_json),json_query($.Performance & security by BasedFlare)]</p>
 		</footer>
 	</body>
 </html>