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Fix #1329 - send MG_EV_WS_OPEN for server connections

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This commit is contained in:
Sergey Lyubka 2021-08-04 11:38:32 +01:00
parent 9b18a6350a
commit c2c6ff11ed
5 changed files with 46 additions and 23 deletions
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2
Makefile
View File

@ -1,6 +1,6 @@
SRCS = mongoose.c test/unit_test.c test/packed_fs.c
HDRS = $(wildcard src/*.h)
DEFS ?= -DMG_MAX_HTTP_HEADERS=5 -DMG_ENABLE_LINES -DMG_ENABLE_PACKED_FS=1
DEFS ?= -DMG_MAX_HTTP_HEADERS=7 -DMG_ENABLE_LINES -DMG_ENABLE_PACKED_FS=1
WARN ?= -W -Wall -Werror -Wshadow -Wdouble-promotion -fno-common -Wconversion
OPTS ?= -O3 -g3
INCS ?= -Isrc -I.

20
mongoose.c
View File

@ -1511,7 +1511,7 @@ void mg_http_serve_dir(struct mg_connection *c, struct mg_http_message *hm,
int flags = uri_to_path(c, hm, opts, root, sizeof(root), path, sizeof(path));
if (flags == 0) return;
LOG(LL_DEBUG, ("root [%s], path [%s] %d", root, path, flags));
// LOG(LL_DEBUG, ("root [%s], path [%s] %d", root, path, flags));
if (flags & MG_FS_DIR) {
listdir(c, hm, opts, path);
} else if (opts->ssi_pattern != NULL &&
@ -4458,15 +4458,16 @@ struct ws_msg {
size_t data_len;
};
static void ws_handshake(struct mg_connection *c, const char *key,
size_t key_len, const char *fmt, va_list ap) {
static void ws_handshake(struct mg_connection *c, const struct mg_str *wskey,
const struct mg_str *wsproto, const char *fmt,
va_list ap) {
const char *magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
unsigned char sha[20], b64_sha[30];
char mem[128], *buf = mem;
mg_sha1_ctx sha_ctx;
mg_sha1_init(&sha_ctx);
mg_sha1_update(&sha_ctx, (unsigned char *) key, key_len);
mg_sha1_update(&sha_ctx, (unsigned char *) wskey->ptr, wskey->len);
mg_sha1_update(&sha_ctx, (unsigned char *) magic, 36);
mg_sha1_final(sha, &sha_ctx);
mg_base64_encode(sha, sizeof(sha), (char *) b64_sha);
@ -4477,9 +4478,14 @@ static void ws_handshake(struct mg_connection *c, const char *key,
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"%s\r\n",
"%s",
b64_sha, buf);
if (buf != mem) free(buf);
if (wsproto != NULL) {
mg_printf(c, "Sec-WebSocket-Protocol: %.*s\r\n", (int) wsproto->len,
wsproto->ptr);
}
mg_send(c, "\r\n", 2);
}
static size_t ws_process(uint8_t *buf, size_t len, struct ws_msg *msg) {
@ -4665,11 +4671,13 @@ void mg_ws_upgrade(struct mg_connection *c, struct mg_http_message *hm,
mg_http_reply(c, 426, "", "WS upgrade expected\n");
c->is_draining = 1;
} else {
struct mg_str *wsproto = mg_http_get_header(hm, "Sec-WebSocket-Protocol");
va_list ap;
va_start(ap, fmt);
ws_handshake(c, wskey->ptr, wskey->len, fmt, ap);
ws_handshake(c, wskey, wsproto, fmt, ap);
va_end(ap);
c->is_websocket = 1;
mg_call(c, MG_EV_WS_OPEN, &hm);
}
}

2
src/http.c
View File

@ -740,7 +740,7 @@ void mg_http_serve_dir(struct mg_connection *c, struct mg_http_message *hm,
int flags = uri_to_path(c, hm, opts, root, sizeof(root), path, sizeof(path));
if (flags == 0) return;
LOG(LL_DEBUG, ("root [%s], path [%s] %d", root, path, flags));
// LOG(LL_DEBUG, ("root [%s], path [%s] %d", root, path, flags));
if (flags & MG_FS_DIR) {
listdir(c, hm, opts, path);
} else if (opts->ssi_pattern != NULL &&

18
src/ws.c
View File

@ -14,15 +14,16 @@ struct ws_msg {
size_t data_len;
};
static void ws_handshake(struct mg_connection *c, const char *key,
size_t key_len, const char *fmt, va_list ap) {
static void ws_handshake(struct mg_connection *c, const struct mg_str *wskey,
const struct mg_str *wsproto, const char *fmt,
va_list ap) {
const char *magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
unsigned char sha[20], b64_sha[30];
char mem[128], *buf = mem;
mg_sha1_ctx sha_ctx;
mg_sha1_init(&sha_ctx);
mg_sha1_update(&sha_ctx, (unsigned char *) key, key_len);
mg_sha1_update(&sha_ctx, (unsigned char *) wskey->ptr, wskey->len);
mg_sha1_update(&sha_ctx, (unsigned char *) magic, 36);
mg_sha1_final(sha, &sha_ctx);
mg_base64_encode(sha, sizeof(sha), (char *) b64_sha);
@ -33,9 +34,14 @@ static void ws_handshake(struct mg_connection *c, const char *key,
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"%s\r\n",
"%s",
b64_sha, buf);
if (buf != mem) free(buf);
if (wsproto != NULL) {
mg_printf(c, "Sec-WebSocket-Protocol: %.*s\r\n", (int) wsproto->len,
wsproto->ptr);
}
mg_send(c, "\r\n", 2);
}
static size_t ws_process(uint8_t *buf, size_t len, struct ws_msg *msg) {
@ -221,11 +227,13 @@ void mg_ws_upgrade(struct mg_connection *c, struct mg_http_message *hm,
mg_http_reply(c, 426, "", "WS upgrade expected\n");
c->is_draining = 1;
} else {
struct mg_str *wsproto = mg_http_get_header(hm, "Sec-WebSocket-Protocol");
va_list ap;
va_start(ap, fmt);
ws_handshake(c, wskey->ptr, wskey->len, fmt, ap);
ws_handshake(c, wskey, wsproto, fmt, ap);
va_end(ap);
c->is_websocket = 1;
mg_call(c, MG_EV_WS_OPEN, &hm);
}
}

27
test/unit_test.c
View File

@ -377,6 +377,8 @@ static void eh1(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
sopts.extra_headers = "C: D\r\n";
mg_http_serve_dir(c, hm, &sopts);
}
} else if (ev == MG_EV_WS_OPEN) {
mg_ws_send(c, "opened", 6, WEBSOCKET_OP_BINARY);
} else if (ev == MG_EV_WS_MSG) {
struct mg_ws_message *wm = (struct mg_ws_message *) ev_data;
mg_ws_send(c, wm->data.ptr, wm->data.len, WEBSOCKET_OP_BINARY);
@ -441,29 +443,34 @@ static int cmpbody(const char *buf, const char *str) {
static void wcb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
if (ev == MG_EV_WS_OPEN) {
struct mg_http_message *hm = (struct mg_http_message *) ev_data;
struct mg_str *wsproto = mg_http_get_header(hm, "Sec-WebSocket-Protocol");
ASSERT(wsproto != NULL);
mg_ws_send(c, "boo", 3, WEBSOCKET_OP_BINARY);
mg_ws_send(c, "", 0, WEBSOCKET_OP_PING);
((int *) fn_data)[0] += 100;
} else if (ev == MG_EV_WS_MSG) {
struct mg_ws_message *wm = (struct mg_ws_message *) ev_data;
ASSERT(mg_strstr(wm->data, mg_str("boo")));
mg_ws_send(c, "", 0, WEBSOCKET_OP_CLOSE); // Ask server to close
*(int *) fn_data = 1;
if (mg_strstr(wm->data, mg_str("boo")))
mg_ws_send(c, "", 0, WEBSOCKET_OP_CLOSE);
((int *) fn_data)[0]++;
} else if (ev == MG_EV_CLOSE) {
*(int *) fn_data = 2;
((int *) fn_data)[0] += 10;
}
}
static void test_ws(void) {
char buf[FETCH_BUF_SIZE];
const char *url = "ws://LOCALHOST:12343";
const char *url = "ws://LOCALHOST:12343/ws";
struct mg_mgr mgr;
int i, done = 0;
mg_mgr_init(&mgr);
ASSERT(mg_http_listen(&mgr, url, eh1, NULL) != NULL);
mg_ws_connect(&mgr, url, wcb, &done, "%s", "");
for (i = 0; i < 20; i++) mg_mgr_poll(&mgr, 1);
ASSERT(done == 2);
mg_ws_connect(&mgr, url, wcb, &done, "%s", "Sec-WebSocket-Protocol: meh\r\n");
for (i = 0; i < 30; i++) mg_mgr_poll(&mgr, 1);
// LOG(LL_INFO, ("--> %d", done));
ASSERT(done == 112);
// Test that non-WS requests fail
ASSERT(fetch(&mgr, buf, url, "GET /ws HTTP/1.0\r\n\n") == 426);
@ -879,11 +886,11 @@ static void test_http_parse(void) {
}
{
static const char *s = "a b c\na:1\nb:2\nc:3\nd:4\ne:5\nf:6\n\n";
static const char *s = "a b c\na:1\nb:2\nc:3\nd:4\ne:5\nf:6\ng:7\nh:8\n\n";
ASSERT(mg_http_parse(s, strlen(s), &req) == (int) strlen(s));
ASSERT((v = mg_http_get_header(&req, "e")) != NULL);
ASSERT(mg_vcmp(v, "5") == 0);
ASSERT((v = mg_http_get_header(&req, "f")) == NULL);
ASSERT((v = mg_http_get_header(&req, "h")) == NULL);
}
{