I'm trying to pen-test the web app, that consumes the POST request containing the raw data like this:
1|2|3|4|1|5|6|5|7|8|1|9|21|10|11|12|13|11|14|15|16|42|17|11|18|19|16|489|20|16|618|21|16|193|22|11|23|8|11|24|25|11|26|27|16|340|28|11|29|30|11|31|32|16|378|33|-7|34|11|35|36|16|130|37|16|55|38|-7|39|11|40|41|42|1|7|8|1|9|21|10|11|43|13|11|44|15|16|34|17|11|45|19|16|1058|20|16|480|21|16|190|22|11|46|8|11|47|25|11|48|27|16|322|28|11|49|30|-32|32|16|220|33|-28|34|-25|36|16|134|37|16|48|38|-28|39|-32|41|-22|7|8|1|9|21|10|11|50|13|11|51|15|16|33|17|11|52|19|16|934|20|16|669|21|16|185|22|11|53|8|11|54|25|11|55|27|16|98|28|11|56|30|-16|32|16|84|33|-45|34|11|57|36|16|139|37|16|49|38|11|58|39|11|59|41|-22|7|8|1|9|21|10|11|60|13|11|61|15|16|53|17|11|62|19|16|695|20|16|614|21|16|177|22|-49|8|11|63|25|11|64|27|16|131|28|11|65|30|-16|32|16|56|33|-65|34|11|66|36|16|151|37|-6|38|-65|39|-59|41|-22|7|8|1|9|21|10|11|67|13|11|68|15|16|40|17|11|69|19|16|197|20|16|147|21|16|110|22|11|70|8|11|71|25|11|72|27|16|341|28|11|73|30|-16|32|16|339|33|-81|34|11|74|36|16|133|37|16|20|38|-81|39|11|75|41|-22|
I.e. all POST data can't be separated into parameters and values like Tamper Data handles them. That makes the plugin very unfriendly to dealing with such kind of POST data. I even can't go to the main Tamper data screen and copy the raw data from requests history list since the screen is blocked by the lesser screen handling the current http request. Thus, I can access and copy the raw data only when the request is already declined or sent without required modification.
Is there the similar tools (browser plugins, http proxies), or at least source code of tamper data that can be used to work and modify of such kind of post data in a manner Tamper Data does?