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101b474217
At the moment you can define and set per-stream metadata at the client,
which will be string-substituted and if configured in the policy, set in
related outgoing protocol specific content like h1 headers.
This patch extends the metadata concept to also check incoming protocol-
specific content like h1 headers and where it matches the binding in the
streamtype's metadata entry, make it available to the client by name, via
a new lws_ss_get_metadata() api.
Currently warmcat.com has additional headers for
server: lwsws (well-known header name)
test-custom-header: hello (custom header name)
minimal-secure-streams test is updated to try to recover these both
in direct and -client (via proxy) versions. The corresponding metadata
part of the "mintest" stream policy from warmcat.com is
{
"srv": "server:"
}, {
"test": "test-custom-header:"
},
If built direct, or at the proxy, the stream has access to the static
policy metadata definitions and can store the rx metadata in the stream
metadata allocation, with heap-allocated a value. For client side that
talks to a proxy, only the proxy knows the policy, and it returns rx
metadata inside the serialized link to the client, which stores it on
the heap attached to the stream.
In addition an optimization for mapping static policy metadata definitions
to individual stream handle metadata is changed to match by name.
|
||
|---|---|---|
| .. | ||
| CMakeLists.txt | ||
| minimal-secure-streams.c | ||
| README.md | ||
lws minimal secure streams
The application goes to https://warmcat.com and reads index.html there.
It does it using Secure Streams... the main code in minimal-secure-streams.c just sets up the context and opens a secure stream of type "mintest".
The handler for state changes and payloads for "mintest" is in ss-myss.c
The information about how a "mintest" stream should connect and the protocol it uses is kept separated in policy-database.c
build
$ cmake . && make
usage
| Commandline option | Meaning |
|---|---|
| -d | Debug verbosity in decimal, eg, -d15 |
| -f | Force connecting to the wrong endpoint to check backoff retry flow |
| -p | Run as proxy server for clients to connect to over unix domain socket |
| --force-portal | Force the SS Captive Portal Detection to feel it's behind a portal |
| --force-no-internet | Force the SS Captive Portal Detection to feel it can't reach the internet |
[2019/08/12 07:16:11:0045] USR: LWS minimal secure streams [-d<verbosity>] [-f]
[2019/08/12 07:16:12:6102] USR: myss_state: LWSSSCS_CREATING, ord 0x0
[2019/08/12 07:16:12:6107] USR: myss_state: LWSSSCS_POLL, ord 0x0
[2019/08/12 07:16:12:6117] N: lws_ss_client_connect: connecting h1get warmcat.com /
[2019/08/12 07:16:12:6118] USR: myss_state: LWSSSCS_CONNECTING, ord 0x0
[2019/08/12 07:16:13:4171] USR: myss_state: LWSSSCS_CONNECTED, ord 0x0
[2019/08/12 07:16:13:4222] USR: myss_rx: len 1024, flags: 1
[2019/08/12 07:16:13:4243] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4244] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4244] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4245] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4246] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4247] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4252] USR: myss_rx: len 1015, flags: 0
[2019/08/12 07:16:13:4264] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4265] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4266] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4267] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4268] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4268] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4269] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4270] USR: myss_rx: len 1015, flags: 0
[2019/08/12 07:16:13:4278] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4279] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4280] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4281] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4282] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4283] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4283] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4284] USR: myss_rx: len 1015, flags: 0
[2019/08/12 07:16:13:4287] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4288] USR: myss_rx: len 947, flags: 0
[2019/08/12 07:16:13:4293] USR: myss_rx: len 0, flags: 2
[2019/08/12 07:16:13:4399] USR: myss_state: LWSSSCS_DISCONNECTED, ord 0x0
[2019/08/12 07:16:13:4761] USR: myss_state: LWSSSCS_DESTROYING, ord 0x0
[2019/08/12 07:16:13:4781] USR: Completed: OK