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Trying harder still to curb stale connections.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3900 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams 2022-06-17 18:51:24 +00:00
parent 4293e75082
commit b5b6ed8ba5
2 changed files with 61 additions and 8 deletions
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37
core/httpd.js
View File

@ -5,6 +5,7 @@ var gSocketHandlers = [];
var gBadRequests = {};
const kRequestTimeout = 15000;
const kStallTimeout = 60000;
function logError(error) {
print("ERROR " + error);
@ -388,10 +389,12 @@ function allowRequest(client) {
function handleConnection(client) {
if (!allowRequest(client)) {
print('Rejecting client for too many bad requests: ', client.peerName, gBadRequests[client.peerName].reason);
client.info = 'rejected';
client.close();
return;
}
client.info = 'accepted';
var inputBuffer = new Uint8Array(0);
var request;
var headers = {};
@ -399,10 +402,17 @@ function handleConnection(client) {
var bodyToRead = -1;
var body;
var requestCount = -1;
var readCount = 0;
var isWebsocket = false;
function resetTimeout(requestIndex) {
if (isWebsocket) {
return;
}
if (bodyToRead == -1) {
setTimeout(function() {
if (bodyToRead == -1 && requestCount == requestIndex) {
if (requestCount == requestIndex) {
client.info = 'timed out';
if (requestCount == 0) {
badRequest(client, 'Timed out waiting for request.');
} else {
@ -410,6 +420,19 @@ function handleConnection(client) {
}
}
}, kRequestTimeout);
} else {
var lastReadCount = readCount;
setTimeout(function() {
if (readCount == lastReadCount) {
client.info = 'stalled';
if (requestCount == 0) {
badRequest(client, 'Request stalled.');
} else {
client.close();
}
}
}, kStallTimeout);
}
}
resetTimeout(++requestCount);
@ -421,10 +444,12 @@ function handleConnection(client) {
lineByLine = true;
bodyToRead = -1;
body = undefined;
client.info = 'reset';
resetTimeout(++requestCount);
}
function finish() {
client.info = 'finishing';
var requestObject = new Request(request[0], request[1], request[2], headers, body, client);
var response = new Response(requestObject, client);
try {
@ -468,11 +493,14 @@ function handleConnection(client) {
return false;
}
body = new Uint8Array(bodyToRead);
client.info = 'waiting for body';
return true;
} else if (headers["connection"]
&& headers["connection"].toLowerCase().split(",").map(x => x.trim()).indexOf("upgrade") != -1
&& headers["upgrade"]
&& headers["upgrade"].toLowerCase() == "websocket") {
isWebsocket = true;
client.info = 'websocket';
var requestObject = new Request(request[0], request[1], request[2], headers, body, client);
var response = new Response(requestObject, client);
handleWebSocketRequest(requestObject, response, client);
@ -504,7 +532,11 @@ function handleConnection(client) {
});
client.read(function(data) {
readCount++;
if (data) {
if (bodyToRead != -1 && !isWebsocket) {
resetTimeout(requestCount);
}
const kMaxLineLength = 4096;
var newBuffer = new Uint8Array(inputBuffer.length + data.length);
newBuffer.set(inputBuffer, 0);
@ -537,6 +569,9 @@ function handleConnection(client) {
inputBuffer = new Uint8Array(0);
}
}
} else {
client.info = 'EOF';
client.close();
}
});
}

18
src/socket.js.c
View File

@ -45,6 +45,7 @@ typedef struct _socket_t {
JSValue _onConnect;
JSValue _onRead;
JSValue _onError;
JSValue _info;
uint64_t created_ms;
} socket_t;
@ -67,6 +68,7 @@ static JSValue _socket_getPeerName(JSContext* context, JSValueConst this_val, in
static JSValue _socket_getPeerCertificate(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_getNoDelay(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_setNoDelay(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_setInfo(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _sockets_get(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static void _socket_onClose(uv_handle_t* handle);
@ -122,6 +124,7 @@ static void _socket_gc_mark(JSRuntime* runtime, JSValueConst value, JS_MarkFunc
JS_MarkValue(runtime, socket->_onConnect, mark_func);
JS_MarkValue(runtime, socket->_onRead, mark_func);
JS_MarkValue(runtime, socket->_onError, mark_func);
JS_MarkValue(runtime, socket->_info, mark_func);
}
}
@ -212,6 +215,11 @@ socket_t* _socket_create_internal(JSContext* context)
JS_DefinePropertyGetSet(context, object, atom, get_no_delay, set_no_delay, 0);
JS_FreeAtom(context, atom);
atom = JS_NewAtom(context, "info");
JSValue set_info = JS_NewCFunction(context, _socket_setInfo, "setInfo", 1);
JS_DefinePropertyGetSet(context, object, atom, JS_UNDEFINED, set_info, 0);
JS_FreeAtom(context, atom);
++_open_count;
uv_tcp_init(tf_task_get_loop(socket->_task), &socket->_socket);
socket->_socket.data = socket;
@ -1065,6 +1073,15 @@ JSValue _socket_setNoDelay(JSContext* context, JSValueConst this_val, int argc,
return JS_UNDEFINED;
}
JSValue _socket_setInfo(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
JSValue old = socket->_info;
socket->_info = JS_DupValue(context, argv[0]);
JS_FreeValue(context, old);
return JS_UNDEFINED;
}
JSValue _sockets_get(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
JSValue array = JS_NewArray(context);
@ -1077,6 +1094,7 @@ JSValue _sockets_get(JSContext* context, JSValueConst this_val, int argc, JSValu
JS_SetPropertyStr(context, entry, "connected", JS_NewBool(context, s->_connected));
JS_SetPropertyStr(context, entry, "tls", JS_NewBool(context, s->_tls != NULL));
JS_SetPropertyStr(context, entry, "age_seconds", JS_NewFloat64(context, (uv_now(tf_task_get_loop(s->_task)) - s->created_ms) / 1000.f));
JS_SetPropertyStr(context, entry, "info", JS_DupValue(context, s->_info));
JS_SetPropertyUint32(context, array, i, entry);
}
return array;