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libwebsockets/minimal-examples/http-client/minimal-http-client-certinfo
Andy Green b3131fdfdd cmakelist: Augean Stables refactor
Establish a new distributed CMake architecture with CMake code related to
a source directory moving to be in the subdir in its own CMakeLists.txt.
In particular, there's now one in ./lib which calls through to ones
further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc.

This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction,
and it's much easier to maintain sub-CMakeLists.txt that are in the same
directory as the sources they manage, and conceal all the details that that
level.

Child CMakelists.txt become responsible for:

 - include_directories() definition (this is not supported by CMake
   directly, it passes it back up via PARENT_SCOPE vars in helper
   macros)

 - Addition child CMakeLists.txt inclusion, for example toplevel ->
   role -> role subdir

 - Source file addition to the build

 - Dependent library path resolution... this is now a private thing
   in the child CMakeLists.txt, it just passes back any adaptations
   to include_directories() and the LIB_LIST without filling the
   parent namespace with the details
2020-05-27 08:40:12 +01:00
..
CMakeLists.txt cmakelist: Augean Stables refactor 2020-05-27 08:40:12 +01:00
minimal-http-client-certinfo.c sul: all timed objects use a single pt sul list 2019-08-09 10:12:09 +01:00
README.md minimal: add switches and exit results 2018-04-19 16:16:48 +08:00
warmcat.com.cer tls certs: update warmcat.com and libwebsockets.org public certs 2019-09-22 03:08:36 -07:00

lws minimal http client certinfo

This demonstrates how to dump information from the peer certificate largely independent of the tls backend.

The application goes to https://warmcat.com and receives the page data.

Before receiving the page it dumps information on the server's cert.

This works independently of the tls backend being OpenSSL or mbedTLS.

However the public keys cannot be compared between the two tls backends, since they produce different representations.

build

 $ cmake . && make

usage

Commandline option Meaning
-d Debug verbosity in decimal, eg, -d15
-l Connect to https://localhost:7681 and accept selfsigned cert
--h1 Specify http/1.1 only using ALPN, rejects h2 even if server supports it
 $ ./lws-minimal-http-client-certinfo
[2018/04/05 21:39:26:5882] USER: LWS minimal http client
[2018/04/05 21:39:26:5897] NOTICE: Creating Vhost 'default' (serving disabled), 1 protocols, IPv6 on
[2018/04/05 21:39:26:5955] NOTICE: created client ssl context for default
[2018/04/05 21:39:28:0824] NOTICE: lws_http_client_http_response 200
[2018/04/05 21:39:28:0824] NOTICE:  Peer Cert CN        : warmcat.com
[2018/04/05 21:39:28:0824] NOTICE:  Peer Cert issuer    : /C=GB/ST=Greater Manchester/L=Salford/O=COMODO CA Limited
[2018/04/05 21:39:28:0825] NOTICE:  Peer Cert Valid from: Mon Nov  3 00:00:00 2014
[2018/04/05 21:39:28:0825] NOTICE:  Peer Cert Valid to  : Sat Nov  2 23:59:59 2019
[2018/04/05 21:39:28:0825] NOTICE:  Peer Cert usage bits: 0xa0
[2018/04/05 21:39:28:0825] NOTICE:  Peer Cert public key:
[2018/04/05 21:39:28:0825] NOTICE: 
[2018/04/05 21:39:28:0825] NOTICE: 0000: 30 82 01 22 30 0D 06 09 2A 86 48 86 F7 0D 01 01    0.."0...*.H.....
[2018/04/05 21:39:28:0825] NOTICE: 0010: 01 05 00 03 82 01 0F 00 30 82 01 0A 02 82 01 01    ........0.......
[2018/04/05 21:39:28:0825] NOTICE: 0020: 00 EC 39 C1 98 25 A8 99 AC 01 9B D2 16 C0 CA A3    ..9..%..........
[2018/04/05 21:39:28:0825] NOTICE: 0030: 0E 19 57 E5 3D 23 F3 79 7E 63 BF CD B8 88 D1 16    ..W.=#.y~c......
[2018/04/05 21:39:28:0825] NOTICE: 0040: C6 F0 A6 ED 66 CB F3 C3 D6 7E A7 A3 AB 00 0A 3E    ....f....~.....>
[2018/04/05 21:39:28:0825] NOTICE: 0050: AD EF 20 44 85 5A 61 F0 71 20 BD E3 D1 4B B6 53    .. D.Za.q ...K.S
[2018/04/05 21:39:28:0825] NOTICE: 0060: 57 AA 81 E6 ED 74 36 40 E7 FC 62 24 AD E8 82 1D    W....t6@..b$....
[2018/04/05 21:39:28:0826] NOTICE: 0070: 89 C4 3D 64 6C A8 34 4B DB FB DD 7D D2 2D FB 86    ..=dl.4K...}.-..
[2018/04/05 21:39:28:0826] NOTICE: 0080: 97 EA 6B E2 C9 39 D6 19 DE A8 90 E7 86 8F CF 0A    ..k..9..........
[2018/04/05 21:39:28:0826] NOTICE: 0090: CD 09 3C AF FB 0A FF 85 E8 93 D1 4B A0 C5 21 AD    ..<........K..!.
[2018/04/05 21:39:28:0826] NOTICE: 00A0: 58 52 30 0E 4B FE 4F C8 01 B9 BD 0F D4 E4 64 7B    XR0.K.O.......d{
[2018/04/05 21:39:28:0826] NOTICE: 00B0: 04 B4 D2 68 69 8F F1 D5 FD B0 1A CE 55 43 08 B7    ...hi.......UC..
[2018/04/05 21:39:28:0826] NOTICE: 00C0: 9F 57 0D 4E E1 CA E8 5C B4 2A 6B AB 05 B5 57 67    .W.N...\.*k...Wg
[2018/04/05 21:39:28:0826] NOTICE: 00D0: B8 FD 20 F4 4F 6B 0E 47 7C AD EB B4 99 2C 9B 53    .. .Ok.G|....,.S
[2018/04/05 21:39:28:0826] NOTICE: 00E0: DF EA 67 8D 8A 9D A7 17 01 F9 4E BD 56 43 50 53    ..g.......N.VCPS
[2018/04/05 21:39:28:0826] NOTICE: 00F0: 08 4E FE 6A 85 4A 4D 45 03 DA 01 00 96 7A C0 A9    .N.j.JME.....z..
[2018/04/05 21:39:28:0826] NOTICE: 0100: C2 32 5E 1A 9F 6F 7B E2 02 5E 70 12 D3 8E 76 6A    .2^..o{..^p...vj
[2018/04/05 21:39:28:0826] NOTICE: 0110: 0B 59 A4 D7 31 9D C6 86 08 53 2E 02 8A 1E B1 FB    .Y..1....S......
[2018/04/05 21:39:28:0826] NOTICE: 0120: 7B 02 03 01 00 01                                  {.....          
[2018/04/05 21:39:28:0826] NOTICE: 
[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 503
[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 512
[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 512
[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 512
...
[2018/04/05 21:39:28:3777] USER: RECEIVE_CLIENT_HTTP_READ: read 512
[2018/04/05 21:39:28:3777] USER: RECEIVE_CLIENT_HTTP_READ: read 512
[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 503
[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 512
[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 512
[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 471
[2018/04/05 21:39:28:3778] USER: LWS_CALLBACK_COMPLETED_CLIENT_HTTP
[2018/04/05 21:39:28:3787] USER: Completed