1 /* We rely on wrapped syscalls */
2 #include "libEpollFuzzer/epoll_fuzzer.h"
3
4 #include "App.h"
5 #include <vector>
6
7 /* We keep this one for teardown later on */
8 struct us_listen_socket_t *listen_socket;
9
10 /* This test is run by libEpollFuzzer */
test()11 void test() {
12
13 /* ws->getUserData returns one of these */
14 struct PerSocketData {
15 /* Fill with user data */
16 std::vector<std::string> topics;
17 int nr = 0;
18 };
19
20 /* Keep in mind that uWS::SSLApp({options}) is the same as uWS::App() when compiled without SSL support.
21 * You may swap to using uWS:App() if you don't need SSL */
22 uWS::SSLApp *app = new uWS::SSLApp({
23 /* There are example certificates in uWebSockets.js repo */
24 .key_file_name = "../misc/key.pem",
25 .cert_file_name = "../misc/cert.pem",
26 .passphrase = "1234"
27 });
28
29 app->ws<PerSocketData>("/*", {
30 /* Settings */
31 .compression = uWS::DISABLED,
32 .maxPayloadLength = 512, // also have a low value here for fuzzing
33 .idleTimeout = 60,
34 .maxBackpressure = 128, // we want a low number so that we can reach this in fuzzing
35 .closeOnBackpressureLimit = false, // this one could be tested as well
36 .resetIdleTimeoutOnSend = true, // and this
37 .sendPingsAutomatically = false, // and this
38 /* Handlers */
39 .upgrade = nullptr,
40 .open = [](auto *ws) {
41 /* Open event here, you may access ws->getUserData() which points to a PerSocketData struct */
42
43 PerSocketData *perSocketData = (PerSocketData *) ws->getUserData();
44
45 for (int i = 0; i < 100; i++) {
46 std::string topic = std::to_string((uintptr_t)ws) + "-" + std::to_string(i);
47 perSocketData->topics.push_back(topic);
48 ws->subscribe(topic);
49 }
50 },
51 .message = [&app](auto *ws, std::string_view message, uWS::OpCode opCode) {
52 PerSocketData *perSocketData = (PerSocketData *) ws->getUserData();
53
54 app->publish(perSocketData->topics[++perSocketData->nr % 100], message, opCode);
55 },
56 .drain = [](auto */*ws*/) {
57 /* Check ws->getBufferedAmount() here */
58 //std::cout << "drain" << std::endl;
59 },
60 .ping = [](auto */*ws*/, std::string_view ) {
61 /* Not implemented yet */
62 },
63 .pong = [](auto */*ws*/, std::string_view ) {
64 /* Not implemented yet */
65 },
66 .close = [](auto */*ws*/, int /*code*/, std::string_view /*message*/) {
67 /* You may access ws->getUserData() here */
68 }
69 }).listen(9001, [](auto *listen_s) {
70 if (listen_s) {
71 //std::cout << "Listening on port " << 9001 << std::endl;
72 listen_socket = listen_s;
73 }
74 });
75
76 app->run();
77
78 delete app;
79
80 uWS::Loop::get()->free();
81 }
82
83 /* Thus function should shutdown the event-loop and let the test fall through */
teardown()84 void teardown() {
85 /* If we are called twice there's a bug (it potentially could if
86 * all open sockets cannot be error-closed in one epoll_wait call).
87 * But we only allow 1k FDs and we have a buffer of 1024 from epoll_wait */
88 if (!listen_socket) {
89 exit(-1);
90 }
91
92 /* We might have open sockets still, and these will be error-closed by epoll_wait */
93 // us_socket_context_close - close all open sockets created with this socket context
94 if (listen_socket) {
95 us_listen_socket_close(0, listen_socket);
96 listen_socket = NULL;
97 }
98 }
99