README.md
1# lws minimal http client certinfo
2
3This demonstrates how to dump information from the peer
4certificate largely independent of the tls backend.
5
6The application goes to https://warmcat.com and receives the page data.
7
8Before receiving the page it dumps information on the server's cert.
9
10This works independently of the tls backend being OpenSSL or mbedTLS.
11
12However the public keys cannot be compared between the two tls
13backends, since they produce different representations.
14
15## build
16
17```
18 $ cmake . && make
19```
20
21## usage
22
23Commandline option|Meaning
24---|---
25-d <loglevel>|Debug verbosity in decimal, eg, -d15
26-l| Connect to https://localhost:7681 and accept selfsigned cert
27--h1|Specify http/1.1 only using ALPN, rejects h2 even if server supports it
28
29```
30 $ ./lws-minimal-http-client-certinfo
31[2018/04/05 21:39:26:5882] USER: LWS minimal http client
32[2018/04/05 21:39:26:5897] NOTICE: Creating Vhost 'default' (serving disabled), 1 protocols, IPv6 on
33[2018/04/05 21:39:26:5955] NOTICE: created client ssl context for default
34[2018/04/05 21:39:28:0824] NOTICE: lws_http_client_http_response 200
35[2018/04/05 21:39:28:0824] NOTICE: Peer Cert CN : warmcat.com
36[2018/04/05 21:39:28:0824] NOTICE: Peer Cert issuer : /C=GB/ST=Greater Manchester/L=Salford/O=COMODO CA Limited
37[2018/04/05 21:39:28:0825] NOTICE: Peer Cert Valid from: Mon Nov 3 00:00:00 2014
38[2018/04/05 21:39:28:0825] NOTICE: Peer Cert Valid to : Sat Nov 2 23:59:59 2019
39[2018/04/05 21:39:28:0825] NOTICE: Peer Cert usage bits: 0xa0
40[2018/04/05 21:39:28:0825] NOTICE: Peer Cert public key:
41[2018/04/05 21:39:28:0825] NOTICE:
42[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.....
43[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.......
44[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..%..........
45[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......
46[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....~.....>
47[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
48[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$....
49[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...}.-..
50[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..........
51[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..!.
52[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{
53[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..
54[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
55[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
56[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
57[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..
58[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
59[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......
60[2018/04/05 21:39:28:0826] NOTICE: 0120: 7B 02 03 01 00 01 {.....
61[2018/04/05 21:39:28:0826] NOTICE:
62[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 503
63[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 512
64[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 512
65[2018/04/05 21:39:28:0829] USER: RECEIVE_CLIENT_HTTP_READ: read 512
66...
67[2018/04/05 21:39:28:3777] USER: RECEIVE_CLIENT_HTTP_READ: read 512
68[2018/04/05 21:39:28:3777] USER: RECEIVE_CLIENT_HTTP_READ: read 512
69[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 503
70[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 512
71[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 512
72[2018/04/05 21:39:28:3778] USER: RECEIVE_CLIENT_HTTP_READ: read 471
73[2018/04/05 21:39:28:3778] USER: LWS_CALLBACK_COMPLETED_CLIENT_HTTP
74[2018/04/05 21:39:28:3787] USER: Completed
75```
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