optimize save storage

src/crystal-gauntlet.cr

@@ -155,7 +155,10 @@ module CrystalGauntlet
           LOG.debug { "-> ".colorize(:green).to_s + value_displayed }
 
           context.response.content_type = "text/plain"
-          context.response.print value
+          # to let endpoints manually write to IO
+          if value != ""
+            context.response.print value
+          end
         end
       else
         call_next(context)

src/endpoints/accounts/backupAccount.cr

@@ -13,16 +13,16 @@ CrystalGauntlet.endpoints["/accounts/backupGJAccount.php"] = ->(context : HTTP::
   if result.size > 0
     account_id, hash = result[0]
     bcrypt = Crypto::Bcrypt::Password.new(hash)
-    
+
     if bcrypt.verify(password)
       folder = DATA_FOLDER / "saves"
       params.each do |key, _|
         if key.starts_with?("H4s")
-          File.write(folder / "#{account_id}_levels.sav", key)
+          File.open(folder / "#{account_id}_levels.sav", "w") { |file| Base64.decode(key, file) }
         end
       end
 
-      File.write(folder / "#{account_id}.sav", params["saveData"])
+      File.open(folder / "#{account_id}.sav", "w") { |file| Base64.decode(params["saveData"], file) }
       return "1"
     else
       return "-1"

src/endpoints/accounts/syncAccount.cr

@@ -13,10 +13,14 @@ CrystalGauntlet.endpoints["/accounts/syncGJAccount.php"] = ->(context : HTTP::Se
   if result.size > 0
     account_id, hash = result[0]
     bcrypt = Crypto::Bcrypt::Password.new(hash)
-    
+
     if bcrypt.verify(password)
       folder = DATA_FOLDER / "saves"
-      return "#{File.read(folder / "#{account_id}.sav")};#{File.read(folder / "#{account_id}_levels.sav")};21;30;a;a"
+      Base64.urlsafe_encode(File.read(folder / "#{account_id}.sav"), context.response.output)
+      context.response.output << ";"
+      Base64.urlsafe_encode(File.read(folder / "#{account_id}_levels.sav"), context.response.output)
+      context.response.output << ";21;30;a;a"
+      return ""
     else
       return "-1"
     end