Tool to decrypt ApacheHttpClient logs which contain gzipped messages.
In wire logs, character 10 is replaced with [\n], character 13 with [\r] and characters < 32 and > 127 with
[0xN] where N is char's hexadecimal representation (see
org.apache.hc.client5.http.impl.logging.Wire for more details).
Your log file looks like the following
[Jan 04 2015 05:38:14.109 AM] DEBUG wire:72 - http-outgoing-2 >> "POST /app HTTP/1.1[\r][\n]"
[Jan 04 2015 05:38:14.109 AM] DEBUG wire:72 - http-outgoing-2 >> "User-Agent: Mozilla/5.0[\r][\n]"
[Jan 04 2015 05:38:14.109 AM] DEBUG wire:72 - http-outgoing-2 >> "Content-Length: 47[\r][\n]"
[Jan 04 2015 05:38:14.109 AM] DEBUG wire:72 - http-outgoing-2 >> "Content-Type: application/x-www-form-urlencoded[\r][\n]"
[Jan 04 2015 05:38:14.109 AM] DEBUG wire:72 - http-outgoing-2 >> "Host: test.com[\r][\n]"
[Jan 04 2015 05:38:14.109 AM] DEBUG wire:72 - http-outgoing-2 >> "Connection: Keep-Alive[\r][\n]"
[Jan 04 2015 05:38:14.110 AM] DEBUG wire:72 - http-outgoing-2 >> "Accept-Encoding: gzip,deflate[\r][\n]"
[Jan 04 2015 05:38:14.110 AM] DEBUG wire:72 - http-outgoing-2 >> "[\r][\n]"
[Jan 04 2015 05:38:14.489 AM] DEBUG wire:72 - http-outgoing-2 << "HTTP/1.1 200 OK[\r][\n]"
[Jan 04 2015 05:38:14.489 AM] DEBUG wire:72 - http-outgoing-2 << "Server: nginx[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Date: Sun, 04 Jan 2015 10:37:31 GMT[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Content-Type: text/html;charset=UTF-8[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Transfer-Encoding: chunked[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Connection: keep-alive[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Vary: Accept-Encoding[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Pragma: no-cache[\r][\n]"
[Jan 04 2015 05:38:14.490 AM] DEBUG wire:72 - http-outgoing-2 << "Expires: Thu, 01 Jan 1970 00:00:00 GMT[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "Cache-Control: no-cache[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "Cache-Control: no-store[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "Set-Cookie: JSESSIONID=0C1444D7E0FA6B0F3CCE20AFBA28237E; Path=/; HttpOnly[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "Front-End-Https: on[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "Content-Encoding: gzip[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "37[\r][\n]"
[Jan 04 2015 05:38:14.492 AM] DEBUG wire:72 - http-outgoing-2 << "[0x1f][0x8b][0x8][0x0][0x0][0x0][0x0][0x0][0x0][0x3][0xb3])J-.[0xc8][0xcf]+N[0xb5][0xe3][0xb2][0x81]1[0xe3][0x93][0xf3]S[0x80][0xfc][0xe0][0xd2][0xe4][0xe4][0xd4][0xe2]b.[0x1b]}4[0x9][0x84][0x80][0x1d][0x17][0x0]<Xn]@[0x0][0x0][0x0][\r][\n]"
[Jan 04 2015 05:38:14.492 AM] DEBUG wire:72 - http-outgoing-2 << "0[\r][\n]"
[Jan 04 2015 05:38:14.492 AM] DEBUG wire:72 - http-outgoing-2 << "[\r][\n]"
You are interested in the content received.
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "[\r][\n]"
[Jan 04 2015 05:38:14.491 AM] DEBUG wire:72 - http-outgoing-2 << "37[\r][\n]"
[Jan 04 2015 05:38:14.492 AM] DEBUG wire:72 - http-outgoing-2 << "[0x1f][0x8b][0x8][0x0][0x0][0x0][0x0][0x0][0x0][0x3][0xb3])J-.[0xc8][0xcf]+N[0xb5][0xe3][0xb2][0x81]1[0xe3][0x93][0xf3]S[0x80][0xfc][0xe0][0xd2][0xe4][0xe4][0xd4][0xe2]b.[0x1b]}4[0x9][0x84][0x80][0x1d][0x17][0x0]<Xn]@[0x0][0x0][0x0][\r][\n]"
[Jan 04 2015 05:38:14.492 AM] DEBUG wire:72 - http-outgoing-2 << "0[\r][\n]"
[Jan 04 2015 05:38:14.492 AM] DEBUG wire:72 - http-outgoing-2 << "[\r][\n]"
Relevant is the part starts with [0x1f][0x8b]. That's are the first two bytes of the gzipped content.
[0x1f][0x8b][0x8][0x0][0x0][0x0][0x0][0x0][0x0][0x3][0xb3])J-.[0xc8][0xcf]+N[0xb5][0xe3][0xb2][0x81]1[0xe3][0x93][0xf3]S[0x80][0xfc][0xe0][0xd2][0xe4][0xe4][0xd4][0xe2]b.[0x1b]}4[0x9][0x84][0x80][0x1d][0x17][0x0]<Xn]@[0x0][0x0][0x0][\r][\n]
Decoded, unzipped and printed out ...
String gzipped = ApacheWireLogHelper.decodeMessage("[0x1f][0x8b] ...");
InputStream is = new GZIPInputStream(new ByteArrayInputStream(gzipped.getBytes("ISO-8859-15")))
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
reader.lines().forEach(System.out::println);
you get ...
<response>
<response_code>
Success
</response_code>
</response>
See DecodeGunzipSample.java for a full example.