wss / secure websockets don't work, cause server process exit

[insidewhy]

vibed seems to just exit without any stack trace a lot when attempting this.

If you set up the ssl context correctly and serve content over SSL vibed will crash after the browser has attempted to initiate the wss connection.

[insidewhy]

Sometimes a core dump occurs after wss initialisation:

*** Error in `/tmp/.rdmd-1000/rdmd-server.d-D06B25D3574974E54E58C2C7C388112A/server': free(): invalid pointer: 0x0000000001b6a690 ***
======= Backtrace: =========
/usr/lib/libc.so.6(+0x72e5f)[0x7f4b1dfdee5f]
/usr/lib/libc.so.6(+0x7862e)[0x7f4b1dfe462e]
/usr/lib/libc.so.6(+0x79307)[0x7f4b1dfe5307]
/usr/lib/libcrypto.so.1.0.0(CRYPTO_free+0x1d)[0x7f4b1ed12e2d]
/usr/lib/libcrypto.so.1.0.0(ERR_clear_error+0x76)[0x7f4b1edb5fb6]
/usr/lib/libssl.so.1.0.0(ssl23_accept+0x31)[0x7f4b1ea70141]
/tmp/.rdmd-1000/rdmd-server.d-D06B25D3574974E54E58C2C7C388112A/server(_D4vibe6stream3ssl9SSLStream6__ctorMFC4vibe4core6stream6StreamC4vibe6stream3ssl10SSLContextE4vibe6stream3ssl14SSLStreamStateZC4vibe6stream3ssl9SSLStream+0x125)[0x65fdcd]
======= Memory map: ========
0

However usually vibed just exits.

[insidewhy]

Here's another error with the same cause from a -debug compile, get an assertion failure this time:

Error after page has been written: [email protected](127): Assertion failure
----------------
./.build/catmist(_d_assertm+0x26) [0x735a52]
./.build/catmist() [0x6e9e42]
./.build/catmist(vibe.http.websockets.WebSocket vibe.http.websockets.WebSocket.__ctor(vibe.core.stream.Stream, vibe.http.server.HTTPServerRequest)+0x3f) [0x6e7f0f]
./.build/catmist(void vibe.http.websockets.handleWebSockets(void delegate(vibe.http.websockets.WebSocket)).callback(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse)+0xd45) [0x6e7e85]
./.build/catmist(void vibe.http.router.URLRouter.handleRequest(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse)+0x148) [0x6d65f0]
./.build/catmist(bool vibe.http.server.handleRequest(vibe.core.stream.Stream, immutable(char)[], vibe.http.server.HTTPServerListener, ref vibe.http.server.HTTPServerSettings, ref bool)+0x37ab) [0x6e26cb]
./.build/catmist(void vibe.http.server.handleHTTPConnection(vibe.core.net.TCPConnection, vibe.http.server.HTTPServerListener)+0x1d7) [0x6ded0f]
./.build/catmist(void vibe.http.server.listenHTTPPlain(vibe.http.server.HTTPServerSettings, void delegate(vibe.http.server.HTTPServerRequest, vibe.http.server.HTTPServerResponse)).doListen(vibe.http.server.HTTPServerSettings, vibe.http.server.HTTPServerListener, immutable(char)[]).__lambda4(vibe.core.net.TCPConnection)+0x28) [0x6d7608]
./.build/catmist(void vibe.core.drivers.libevent2_tcp.onConnect(int, short, void*).ClientTask.execute()+0x552) [0x5fa00a]
./.build/catmist(void vibe.core.core.CoreTask.run()+0x115) [0x5e6d0d]
./.build/catmist(void core.thread.Fiber.run()+0x2a) [0x77129e]
./.build/catmist(fiber_entryPoint+0x61) [0x7711a9]
[(nil)]
zsh: segmentation fault (core dumped)  ./.build/catmist

[insidewhy]

Captured a bunch of core dumps and analsyed with gdb but they show problems in many places... here's a few:

#0  0x00007f9ae2d87477 in CRYPTO_add_lock () from /usr/lib/libcrypto.so.1.0.0
(gdb) bt
#0  0x00007f9ae2d87477 in CRYPTO_add_lock () from /usr/lib/libcrypto.so.1.0.0
#1  0x00007f9ae2e3aa40 in EVP_PKEY_CTX_dup () from /usr/lib/libcrypto.so.1.0.0
#2  0x00007f9ae2e2cc80 in EVP_MD_CTX_copy_ex () from /usr/lib/libcrypto.so.1.0.0
#3  0x00007f9ae2aebe95 in tls1_mac () from /usr/lib/libssl.so.1.0.0
#4  0x00007f9ae2ae0b56 in ssl3_read_bytes () from /usr/lib/libssl.so.1.0.0
#5  0x00007f9ae2adda80 in ssl3_peek () from /usr/lib/libssl.so.1.0.0
#6  0x00000000007072c5 in vibe.stream.ssl.SSLStream.peek() ()
#7  0x0000000000703a31 in vibe.stream.counting.LimitedInputStream.peek() ()
#8  0x0000000000706463 in vibe.stream.operations.readUntil() ()
#9  0x0000000000705f06 in vibe.stream.operations.readUntil() ()
#10 0x00000000006e4fe9 in vibe.http.server.parseRequestHeader() ()
#11 0x00000000006df6cb in vibe.http.server.handleRequest() ()
#12 0x00000000006ded0f in vibe.http.server.handleHTTPConnection() ()
#13 0x00000000006d7608 in vibe.http.server.listenHTTPPlain() ()
#14 0x00000000005fa00a in vibe.core.drivers.libevent2_tcp.onConnect() ()
#15 0x00000000005e6d0d in vibe.core.core.CoreTask.run() ()
#16 0x000000000077129e in core.thread.Fiber.run() ()
#17 0x00000000007711a9 in fiber_entryPoint ()

#0  0x0000000001f1a3e0 in ?? ()
(gdb) bt
#0  0x0000000001f1a3e0 in ?? ()
#1  0x00007fabf4004750 in BIO_free () from /usr/lib/libcrypto.so.1.0.0
#2  0x00007fabf3cc50d3 in ssl3_free () from /usr/lib/libssl.so.1.0.0
#3  0x00007fabf3ce3c9b in SSL_free () from /usr/lib/libssl.so.1.0.0
#4  0x0000000000707096 in vibe.stream.ssl.SSLStream.__ctor() ()
#5  0x000000000072c4ce in vibe.utils.memory.__T11FreeListRefTC4vibe6stream3ssl9SSLStreamZ.FreeListRef.__T6opCallTC4vibe4core6stream6StreamTC4vibe6stream3ssl10SSLContextTE4vibe6stream3ssl14SSLStreamStateZ.opCall() ()
#6  0x00000000006dec22 in vibe.http.server.handleHTTPConnection() ()
#7  0x00000000006d7608 in vibe.http.server.listenHTTPPlain() ()
#8  0x00000000005fa00a in vibe.core.drivers.libevent2_tcp.onConnect() ()
#9  0x00000000005e6d0d in vibe.core.core.CoreTask.run() ()
#10 0x000000000077129e in core.thread.Fiber.run() ()
#11 0x00000000007711a9 in fiber_entryPoint ()
#12 0x0000000000000000 in ?? ()

#0  0x00007fa7da3b53d9 in raise () from /usr/lib/libc.so.6
#1  0x00007fa7da3b67d8 in abort () from /usr/lib/libc.so.6
#2  0x00007fa7da3f2e64 in __libc_message () from /usr/lib/libc.so.6
#3  0x00007fa7da3f862e in malloc_printerr () from /usr/lib/libc.so.6
#4  0x00007fa7da3f9307 in _int_free () from /usr/lib/libc.so.6
#5  0x00007fa7db126e2d in CRYPTO_free () from /usr/lib/libcrypto.so.1.0.0
#6  0x00007fa7db1c9fb6 in ERR_clear_error () from /usr/lib/libcrypto.so.1.0.0
#7  0x00007fa7dae84141 in ssl23_accept () from /usr/lib/libssl.so.1.0.0
#8  0x0000000000707025 in vibe.stream.ssl.SSLStream.__ctor() ()
#9  0x000000000072c4ce in vibe.utils.memory.__T11FreeListRefTC4vibe6stream3ssl9SSLStreamZ.FreeListRef.__T6opCallTC4vibe4core6stream6StreamTC4vibe6stream3ssl10SSLContextTE4vibe6stream3ssl14SSLStreamStateZ.opCall() ()
#10 0x00000000006dec22 in vibe.http.server.handleHTTPConnection() ()
#11 0x00000000006d7608 in vibe.http.server.listenHTTPPlain() ()
#12 0x00000000005fa00a in vibe.core.drivers.libevent2_tcp.onConnect() ()
#13 0x00000000005e6d0d in vibe.core.core.CoreTask.run() ()
#14 0x000000000077129e in core.thread.Fiber.run() ()
#15 0x00000000007711a9 in fiber_entryPoint ()
#16 0x0000000000000000 in ?? ()

[s-ludwig]

The WebSocket specific bug should be fixed now and the rest looks like it may all be #384. I'll continue to investigate there.