Change http status code for transaction_exception and eof_exception

[andriantolie]

Change http status code for transaction_exception and eof_exception so its error message is not swallowed by cleos. Currently they are treated as 400, which by cleos will be displayed as:

Error 3200006: invalid http request
Error Details:
The server has rejected the request as invalid!
Please verify this url is valid: http://127.0.0.1:8888/v1/chain/push_transaction
If the condition persists, please contact the RPC server administrator for 127.0.0.1!

and is confusing for the developer when they are trying to investigate the problem.

[yqzzj]

@andriantolie I seem to met this problem.

zzj@ubuntu:~/.local/share/eosio/nodeos/config$ cleos get transaction f04c38f5692143e360ecb28d1be41ec62a5bb4a405e5dfb6731317c79a975f64
Error 3200006: invalid http request
Error Details:
The server has rejected the request as invalid!
Please verify this url is valid: http://127.0.0.1:8888/v1/history/get_transaction
If the condition persists, please contact the RPC server administrator for 127.0.0.1!

I config http_plugin , http-validate-host and so on.

It should return "tx not found",right?
It really puzzled me for a long time.

[andriantolie]

Even after the PR is merged?
Yep it should return "tx not found"

[yqzzj]

I haven't merged yet.
My code is still 1.1.1.
I think it will be ok after merged.
Thanks.