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https://libwebsockets.org/repo/libwebsockets
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64 lines
2.7 KiB
Markdown
64 lines
2.7 KiB
Markdown
# lws minimal http server with tls and port 80 redirect
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## build
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```
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$ cmake . && make
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```
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## usage
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Because this listens on low ports (80 + 443), it must be run as root.
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```
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$ sudo ./lws-minimal-http-server-tls-80
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[2018/03/20 13:23:13:0131] USER: LWS minimal http server TLS | visit https://localhost:7681
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[2018/03/20 13:23:13:0142] NOTICE: Creating Vhost 'default' port 7681, 1 protocols, IPv6 off
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[2018/03/20 13:23:13:0142] NOTICE: Using SSL mode
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[2018/03/20 13:23:13:0146] NOTICE: SSL ECDH curve 'prime256v1'
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[2018/03/20 13:23:13:0146] NOTICE: HTTP2 / ALPN enabled
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[2018/03/20 13:23:13:0195] NOTICE: lws_tls_client_create_vhost_context: doing cert filepath localhost-100y.cert
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[2018/03/20 13:23:13:0195] NOTICE: Loaded client cert localhost-100y.cert
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[2018/03/20 13:23:13:0195] NOTICE: lws_tls_client_create_vhost_context: doing private key filepath
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[2018/03/20 13:23:13:0196] NOTICE: Loaded client cert private key localhost-100y.key
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[2018/03/20 13:23:13:0196] NOTICE: created client ssl context for default
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[2018/03/20 13:23:14:0207] NOTICE: vhost default: cert expiry: 730459d
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```
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Visit http://localhost
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This will go first to port 80 using http, where it will be redirected to
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https and port 443
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```
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07:41:48.596918 IP localhost.http > localhost.52662: Flags [P.], seq 1:100, ack 416, win 350, options [nop,nop,TS val 3906619933 ecr 3906619933], length 99: HTTP: HTTP/1.1 301 Redirect
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0x0000: 4500 0097 3f8f 4000 4006 fccf 7f00 0001 E...?.@.@.......
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0x0010: 7f00 0001 0050 cdb6 6601 dfa7 922a 4c06 .....P..f....*L.
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0x0020: 8018 015e fe8b 0000 0101 080a e8da 4a1d ...^..........J.
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0x0030: e8da 4a1d 4854 5450 2f31 2e31 2033 3031 ..J.HTTP/1.1.301
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0x0040: 2052 6564 6972 6563 740d 0a6c 6f63 6174 .Redirect..locat
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0x0050: 696f 6e3a 2068 7474 7073 3a2f 2f6c 6f63 ion:.https://loc
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0x0060: 616c 686f 7374 2f0d 0a63 6f6e 7465 6e74 alhost/..content
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0x0070: 2d74 7970 653a 2074 6578 742f 6874 6d6c -type:.text/html
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0x0080: 0d0a 636f 6e74 656e 742d 6c65 6e67 7468 ..content-length
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0x0090: 3a20 300d 0a0d 0a
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```
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Because :443 uses a selfsigned certificate, you will have to make an exception for it in your browser.
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## Certificate creation
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The selfsigned certs provided were created with
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```
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echo -e "GB\nErewhon\nAll around\nlibwebsockets-test\n\nlocalhost\nnone@invalid.org\n" | openssl req -new -newkey rsa:4096 -days 36500 -nodes -x509 -keyout "localhost-100y.key" -out "localhost-100y.cert"
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```
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they cover "localhost" and last 100 years from 2018-03-20.
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You can replace them with commercial certificates matching your hostname.
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## HTTP/2
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If you built lws with `-DLWS_WITH_HTTP2=1` at cmake, this simple server is also http/2 capable
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out of the box. If the index.html was loaded over http/2, it will display an HTTP 2 png.
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