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https://libwebsockets.org/repo/libwebsockets
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46 lines
1.7 KiB
Markdown
46 lines
1.7 KiB
Markdown
# lws minimal http client custom headers
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This http client application shows how to send and receive custom headers.
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This currently only works on http 1, so the app forces that even if h2 enables.
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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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Commandline option|Meaning
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---|---
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-d <loglevel>|Debug verbosity in decimal, eg, -d15
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-l| Connect to https://localhost:7681 and accept selfsigned cert
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-n|no TLS
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The app looks for a custom header "test-custom-header" sent by warmcat.com.
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```
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$ ./lws-minimal-http-client-custom-headers
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[2019/03/11 05:46:45:7582] USER: LWS minimal http client Custom Headers [-d<verbosity>] [-l] [--h1]
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[2019/03/11 05:46:45:7671] NOTICE: created client ssl context for default
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[2019/03/11 05:46:46:7812] USER: Connected with server response: 200
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[2019/03/11 05:46:46:7812] NOTICE: callback_http: custom header: 'hello'
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[2019/03/11 05:46:46:7814] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
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...
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```
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You can use the -n and -l to make this test app connect to localhost:7681 over http,
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and confirm the "dnt:1" header was sent either by tcpdump or by running the test
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server on :7681 with -d1151
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```
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[2019/03/11 05:48:53:6806] PARSER: WSI_TOKEN_NAME_PART 'd' 0x64 (role=0x20000000) wsi->lextable_pos=0
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[2019/03/11 05:48:53:6807] PARSER: WSI_TOKEN_NAME_PART 'n' 0x6E (role=0x20000000) wsi->lextable_pos=567
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[2019/03/11 05:48:53:6807] PARSER: WSI_TOKEN_NAME_PART 't' 0x74 (role=0x20000000) wsi->lextable_pos=-1
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[2019/03/11 05:48:53:6807] PARSER: WSI_TOKEN_NAME_PART ' ' 0x20 (role=0x20000000) wsi->lextable_pos=-1
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[2019/03/11 05:48:53:6807] PARSER: WSI_TOKEN_NAME_PART '1' 0x31 (role=0x20000000) wsi->lextable_pos=-1
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' 0x0D (role=0x20000000) wsi->lextable_pos=-1NAME_PART '
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[2019/03/11 05:48:53:6807] PARSER: WSI_TOKEN_NAME_PART '
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```
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