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Emit 1006 with some usable reason messages

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This commit is contained in:
Alex Hultman
2020-06-27 01:49:51 +02:00
parent 13e0a93441
commit 3e5d91418a
2 changed files with 19 additions and 10 deletions
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src/WebSocketContext.h
+10 -9
View File
@@ -52,8 +52,8 @@ private:
}
}
static void forceClose(uWS::WebSocketState<isServer> *wState, void *s) {
us_socket_close(SSL, (us_socket_t *) s, 0, nullptr);
static void forceClose(uWS::WebSocketState<isServer> *wState, void *s, std::string_view reason = {}) {
us_socket_close(SSL, (us_socket_t *) s, (int) reason.length(), (void *) reason.data());
}
/* Returns true on breakage */
@@ -74,7 +74,7 @@ private:
LoopData *loopData = (LoopData *) us_loop_ext(us_socket_context_loop(SSL, us_socket_context(SSL, (us_socket_t *) s)));
auto [inflatedFrame, valid] = loopData->inflationStream->inflate(loopData->zlibContext, {data, length}, webSocketContextData->maxPayloadLength);
if (!valid) {
forceClose(webSocketState, s);
forceClose(webSocketState, s, ERR_TOO_BIG_MESSAGE_INFLATION);
return true;
} else {
data = (char *) inflatedFrame.data();
@@ -84,7 +84,7 @@ private:
/* Check text messages for Utf-8 validity */
if (opCode == 1 && !protocol::isValidUtf8((unsigned char *) data, length)) {
forceClose(webSocketState, s);
forceClose(webSocketState, s, ERR_INVALID_TEXT);
return true;
}
@@ -102,7 +102,7 @@ private:
}
/* Fragments forming a big message are not caught until appending them */
if (refusePayloadLength(length + webSocketData->fragmentBuffer.length(), webSocketState, s)) {
forceClose(webSocketState, s);
forceClose(webSocketState, s, ERR_TOO_BIG_MESSAGE);
return true;
}
webSocketData->fragmentBuffer.append(data, length);
@@ -126,7 +126,7 @@ private:
auto [inflatedFrame, valid] = loopData->inflationStream->inflate(loopData->zlibContext, {webSocketData->fragmentBuffer.data(), webSocketData->fragmentBuffer.length() - 4}, webSocketContextData->maxPayloadLength);
if (!valid) {
forceClose(webSocketState, s);
forceClose(webSocketState, s, ERR_TOO_BIG_MESSAGE_INFLATION);
return true;
} else {
data = (char *) inflatedFrame.data();
@@ -142,7 +142,7 @@ private:
/* Check text messages for Utf-8 validity */
if (opCode == 1 && !protocol::isValidUtf8((unsigned char *) data, length)) {
forceClose(webSocketState, s);
forceClose(webSocketState, s, ERR_INVALID_TEXT);
return true;
}
@@ -245,7 +245,7 @@ private:
auto *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
if (webSocketContextData->closeHandler) {
webSocketContextData->closeHandler((WebSocket<SSL, true> *) s, 1006, {});
webSocketContextData->closeHandler((WebSocket<SSL, true> *) s, 1006, {(char *) reason, (size_t) code});
}
/* Make sure to unsubscribe from any pub/sub node at exit */
@@ -360,7 +360,8 @@ private:
us_socket_context_on_timeout(SSL, getSocketContext(), [](auto *s) {
/* Timeout is very simple; we just close it */
us_socket_close(SSL, (us_socket_t *) s, 0, nullptr);
/* Warning: we happen to know forceClose will not use first parameter so pass nullptr here */
forceClose(nullptr, s, ERR_WEBSOCKET_TIMEOUT);
return s;
});
src/WebSocketProtocol.h
+9 -1
View File
@@ -21,9 +21,17 @@
#include <cstdint>
#include <cstring>
#include <cstdlib>
#include <string_view>
namespace uWS {
/* We should not overcomplicate these */
const std::string_view ERR_TOO_BIG_MESSAGE("Received too big message");
const std::string_view ERR_WEBSOCKET_TIMEOUT("WebSocket timed out from inactivity");
const std::string_view ERR_INVALID_TEXT("Received invalid UTF-8");
const std::string_view ERR_TOO_BIG_MESSAGE_INFLATION("Received too big message, or other inflation error");
const std::string_view ERR_INVALID_CLOSE_PAYLOAD("Received invalid close payload");
enum OpCode : unsigned char {
TEXT = 1,
BINARY = 2,
@@ -310,7 +318,7 @@ protected:
wState->state.lastFin = isFin(src);
if (Impl::refusePayloadLength(payLength, wState, user)) {
Impl::forceClose(wState, user);
Impl::forceClose(wState, user, ERR_TOO_BIG_MESSAGE);
return true;
}