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Author SHA1 Message Date
Andy Green
edd7efd43d client: libuv: fix close handling during redirect
During client redirect we "reset" the wsi to the redirect address,
involving closing the current fd that was told to redirect (it will
usually be a completely different server or port).

With libuv and its two-stage close that's not trivial.  This solves
the problem we will "reset" (overwrite) where the handle lives in the
wsi with new a new connection / handle by having it copied out into
an allocated watcher struct, which is freed in the uv close callback.

To confirm it the minimal ws client example gets some new options, the
original problem was replicated with this

$ lws-minimal-ws-client-echo -s invalid.url.com -p 80

https://github.com/warmcat/libwebsockets/issues/1390
2018-09-11 18:27:59 +08:00
Andy Green
d1f9f0ae2d libwebsockets.h: split out into a dir of sub-includes included by libwebsockets.h
This has no effect on user code or backward compatibility.

It moves the in-tree public api header libwebsockets.h from ./lib
to ./include, and introduces a dir ./include/libwebsockets/

The single public api header is split out into 31 sub-headers
in ./include/libwebsockets.  ./include/libwebsockets.h contains
some core types and platform adaptation code, but the rest of it
is now 31 #include <libwebsockets/...>

At install time, /usr/[local/]include/libwebsockets.h is installed
as before, along now with the 31 sub-headers in ...include/libwebsockets/

There's no net effect on user code.

But the api header is now much easier to maintain and study, with 31
topic-based sub headers.
2018-09-11 18:27:59 +08:00
Andy Green
d461f46a97 libwebsockets.h: clean out some boilerplate better put in core/private.h
https://github.com/warmcat/libwebsockets/issues/1370
2018-08-16 19:10:32 +08:00
Andy Green
a03dd40e62 plugins: gitws libjsongit2 support
This adds a plugin that interfaces to libjsongit2

https://warmcat.com/git/libjsongit2

to provide a per-vhost service for presenting bare git repos in a
web interface.
2018-08-14 08:00:25 +08:00
Andy Green
d2bdb60a17 cgi: fix for https git server 2018-06-16 09:35:07 +08:00
Andy Green
502130d999 refactor: split out adoption and client apis to core
- split raw role into separate skt and file

 - remove all special knowledge from the adoption
   apis and migrate to core

 - remove all special knowledge from client_connect
   stuff, and have it discovered by iterating the
   role callbacks to let those choose how to bind;
   migrate to core

 - retire the old deprecated client apis pre-
   client_connect_info
2018-05-11 10:29:08 +08:00
Andy Green
c4dc102a0b windows: cleanup wrong and duplicated socket validity helpers
https://github.com/warmcat/libwebsockets/issues/1259
2018-05-06 07:22:25 +08:00
Andy Green
de064fd65a refactor: core code in lib/core and private-libwebsockets.h to core/private.h
This commit is coverity-clean as tested

cmake .. -DLWS_WITH_MINIMAL_EXAMPLES=1 -DLWS_WITHOUT_EXTENSIONS=1 -DLWS_WITH_ACME=1 -DLWS_WITH_LWSWS=1 -DLWS_WITH_LIBUV=1 -DLWS_WITH_HTTP2=1 -DLWS_WITHOUT_CLIENT=0 -DLWS_WITHOUT_SERVER=0 -DLWS_UNIX_SOCK=1 -DLWS_WITH_TLS=0 -DLWS_WITH_MBEDTLS=0 -DLWS_WITH_CGI=1 -DCMAKE_BUILD_TYPE=DEBUG -DLWS_WITH_GENERIC_SESSIONS=1 -DLWS_WITH_RANGES=1 -DLWS_ROLE_WS=1 -DLWS_MAX_SMP=16 -DLWS_ROLE_H1=1 -DLWS_WITH_WOLFSSL=0 -DLWS_WITH_LIBEV=0 -DLWS_WITH_LIBEVENT=1
2018-05-03 10:49:36 +08:00
Andy Green
a01ad0dd20 hrtimer: add support for libevent and libev 2018-05-02 19:27:33 +08:00
Andy Green
da0be64f68 minimal-raw-netcat
Adapt attack.sh to use it instead of OS netcat and fox various bugs that
exposed.
2018-05-02 08:46:16 +08:00
Andy Green
f497562a62 refactor: change event lib minimal examples to serve as the test apps 2018-04-30 19:17:32 +08:00
Andy Green
0b52d92d12 refactor: remove more test apps and replace with minimal-examples 2018-04-30 09:16:04 +08:00
Andy Green
d37b383edc refactor: apply ops structs to event loop handlers 2018-04-29 10:44:36 +08:00
Andy Green
8d213f8295 refactor: isolate event_loop struct content same way as roles 2018-04-29 08:34:19 +08:00
Andy Green
7ff8f023d1 context info struct: make lws usage all const 2018-04-27 08:37:20 +08:00
Andy Green
8829c2f365 selftests
This converts several of the selftests to return a status in their exit code
about whether they 'worked'.

A small bash script framework is added, with a selftest.sh in the mininmal
example dirs that support it, and a ./minimal-examples/selftests.sh script
that can be run from the build dir with no args that discovers and runs all
the selftest.sh scripts underneath.

That is also integrated into travis and the enabled tests must pass now for
travis to pass.  Travis does not have a modern libuv so it can't run a
couple of tests which are nulled out if it sees it's running in travis env.
2018-04-19 16:16:48 +08:00
Andy Green
62af7934c8 rxflow buflist: handle forced service 2018-04-19 16:15:10 +08:00
Andy Green
126be3ccf3 refactor role ops
This only refactors internal architecture and representations, the user
api is unaffected.
2018-04-11 13:39:42 +08:00
Andy Green
16e2f09710 refactor mode and states into roles and states 2018-04-06 12:22:19 +08:00
Andy Green
caaf26c717 libuv: foreign loop detach doesn not require lws running the loop at all
This completely removes the loop self-running stuff.

Static allocations (uv_idle, timers etc) are referenced-counted in the context
same as the wsi are.  When lws wants to close, he first closes all his wsi, then
when that is completed in the uv close callbacks, he closes all of his static
uv handles.  When that is also completed in the uv callbacks, he stops the loop
so the lws context can destroy and exit.

Any direct libuv allocations in protocol handlers must participate in the
reference counting.  Two new apis are provided

 - lws_libuv_static_refcount_add(handle, context) to mark the handle with
   a pointer to the context and increment the global uv object counter

 - lws_libuv_static_refcount_del() which should be used as the close callback
   for your own libuv objects declared in the protocol scope.
2018-04-06 10:38:03 +08:00
Andy Green
b9c7f3df92 libuv: run loop to clean up per-pt objects before exiting 2018-04-06 10:38:03 +08:00
Andy Green
1820212724 lws_set_timer_usecs: change to usec resolution
This replaces the existing, unreleased lws_set_timer(wsi, secs) with
lws_set_timer_usecs(wsi, usecs).

wsi with a timer waiting are added to a linked-list sorted by the
timer trigger time.

1) poll() timeout (ie, poll wait) is trimmed to the nearest ms of the
first waiting timer if the default poll wait is longer than the
interval until the first waiting timer.

The linked-list of waiting timers is checked every entry and exit
from poll()... if no timers waiting or none reached their time
this costs almost nothing.

2) libuv: the earliest hrtimer is checked after every IO, again this
is costing nothing if the list head is NULL.  If the case there
are hrtimers on the list, it costs a getimeofday (a VDSO in linux)
and more only if any of the timers have fired.

In addition on entry to libuv idle, if there are any waiting hrtimers
on the list, a libuv timer is used to force a wake in case we stay
idle (the libuv timer has ms resolution).

3) libev: not implemented

4) libevent: not implemented

Warnings are logged in the api is used on an event backend without
support.  Patches welcome to add support similarly to libuv.
2018-04-06 10:38:03 +08:00
Andy Green
aae2c24678 lws_snprintf 2018-03-12 09:28:42 +08:00
Andy Green
0d5ca2d87b pthreads: more locking 2018-03-05 16:49:28 +08:00
Andy Green
ff2f5f601d libev: libevent conflicts at buildtime 2018-02-19 10:42:31 +08:00
Andy Green
73b0147b40 libev: move accept into vh 2018-02-19 10:19:40 +08:00
Andy Green
113d623957 internal close api: add caller id 2018-02-03 13:54:29 +08:00
Sungtae Kim
93f904f601 libevent: fix memory leak
- Added event free function for accept.
2018-01-17 09:23:37 +08:00
Andy Green
be525cb624 appveyor: Enable 64-bit build with OpenSSL and HTTP2
Fix warnings found from that

Introduce lws_ptr_diff(head, tail) helper to normalize
pointers to char *, do the subtraction and cast the
result to int.
2017-11-26 19:16:17 +08:00
Andy Green
74fddbc09e cancel_service: change to event-loop agnostic implementation
- Add platform helpers for pipe creation.

 - Change the direct-to-fds implementation to create a wsi for each
   pt and use the normal apis to bind it to the event loop.

 - Modifiy context creation and destroy to create and remove the
   event pipe wsis.

 - Create the event pipe wsis during context create if using the
   default poll() event loop, or when the other event loops start
   otherwise.

 - Add handler that calls back user code with
   LWS_CALLBACK_EVENT_WAIT_CANCELLED

This patch allows you to call `lws_cancel_service(struct lws_context *context)`
from another thread.

It's very cheap for the other thread to call and is safe without
locking.

Every use protocol receives a LWS_CALLBACK_EVENT_WAIT_CANCELLED from
the main thread serialized normally in the event loop.
2017-11-26 19:16:17 +08:00
Andy Green
1c70181ca2 build: enable signed vs unsigned warnings on gcc
This enables selected things from -Wextra, can't use -Wextra because it is
fussy enough to complain about unused params on functions... they are
there for a reason.

-Wsign-compare
-Wignored-qualifiers
not -Wimplicit-fallthrough=3 ... only on gcc 7
-Wtype-limits
-Wuninitialized
not -Wclobbered ... only on gcc 7ish

fix the warnings everywhere they were found.
2017-10-25 07:17:29 +08:00
Andy Green
c83afc66e6 refactor: subdirs for source in lib
Split out some optional code into own sources to
shrink down libwebsockets.c and server.c a bit
2017-10-16 17:28:37 +08:00