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/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2011-2017 Phusion Holding B.V.
*
* "Passenger", "Phusion Passenger" and "Union Station" are registered
* trademarks of Phusion Holding B.V.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <Core/Controller.h>
/*************************************************************************
*
* Hook functions for Core::Controller. This pertains the hooks that the
* parent classes (ServerKit::HttpServer and ServerKit::Server) provide,
* as well as hooks by libraries such as libev.
*
*************************************************************************/
namespace Passenger {
namespace Core {
using namespace std;
using namespace boost;
/****************************
*
* Private methods
*
****************************/
ServerKit::Channel::Result
Controller::onBodyBufferData(Channel *_channel, const MemoryKit::mbuf &buffer, int errcode) {
FileBufferedChannel *channel = reinterpret_cast<FileBufferedChannel *>(_channel);
Request *req = static_cast<Request *>(static_cast<
ServerKit::BaseHttpRequest *>(channel->getHooks()->userData));
Client *client = static_cast<Client *>(req->client);
Controller *self = static_cast<Controller *>(getServerFromClient(client));
SKC_LOG_EVENT_FROM_STATIC(self, Controller, client, "onBodyBufferData");
assert(req->requestBodyBuffering);
return self->whenSendingRequest_onRequestBody(client, req, buffer, errcode);
}
#ifdef DEBUG_CC_EVENT_LOOP_BLOCKING
void
Controller::onEventLoopPrepare(EV_P_ struct ev_prepare *w, int revents) {
Controller *self = static_cast<Controller *>(w->data);
ev_now_update(EV_A);
self->timeBeforeBlocking = ev_now(EV_A);
}
#endif
void
Controller::onEventLoopCheck(EV_P_ struct ev_check *w, int revents) {
Controller *self = static_cast<Controller *>(w->data);
self->turboCaching.updateState(ev_now(EV_A));
#ifdef DEBUG_CC_EVENT_LOOP_BLOCKING
self->reportLargeTimeDiff(NULL, "Event loop slept",
self->timeBeforeBlocking, ev_now(EV_A));
#endif
}
/****************************
*
* Protected methods
*
****************************/
void
Controller::onClientAccepted(Client *client) {
ParentClass::onClientAccepted(client);
client->connectedAt = ev_now(getLoop());
}
void
Controller::onRequestObjectCreated(Client *client, Request *req) {
ParentClass::onRequestObjectCreated(client, req);
req->appSink.setContext(getContext());
req->appSink.setHooks(&req->hooks);
req->appSource.setContext(getContext());
req->appSource.setHooks(&req->hooks);
req->appSource.setDataCallback(_onAppSourceData);
req->bodyBuffer.setContext(getContext());
req->bodyBuffer.setHooks(&req->hooks);
req->bodyBuffer.setDataCallback(onBodyBufferData);
}
void
Controller::deinitializeClient(Client *client) {
ParentClass::deinitializeClient(client);
client->output.clearBuffersFlushedCallback();
client->output.setDataFlushedCallback(getClientOutputDataFlushedCallback());
}
void
Controller::reinitializeRequest(Client *client, Request *req) {
ParentClass::reinitializeRequest(client, req);
// bodyBuffer is initialized in Controller::beginBufferingBody().
// appSink and appSource are initialized in Controller::checkoutSession().
req->startedAt = 0;
req->state = Request::ANALYZING_REQUEST;
req->dechunkResponse = false;
req->requestBodyBuffering = false;
req->https = false;
req->stickySession = false;
req->sessionCheckoutTry = 0;
req->halfClosePolicy = Request::HALF_CLOSE_POLICY_UNINITIALIZED;
req->appResponseInitialized = false;
req->strip100ContinueHeader = false;
req->hasPragmaHeader = false;
req->host = NULL;
req->config = requestConfig;
req->bodyBytesBuffered = 0;
req->cacheKey = HashedStaticString();
req->cacheControl = NULL;
req->varyCookie = NULL;
req->envvars = NULL;
#ifdef DEBUG_CC_EVENT_LOOP_BLOCKING
req->timedAppPoolGet = false;
req->timeBeforeAccessingApplicationPool = 0;
req->timeOnRequestHeaderSent = 0;
req->timeOnResponseBegun = 0;
#endif
/***************/
}
void
Controller::deinitializeRequest(Client *client, Request *req) {
req->session.reset();
req->config.reset();
req->appSink.setConsumedCallback(NULL);
req->appSink.deinitialize();
req->appSource.deinitialize();
req->bodyBuffer.clearBuffersFlushedCallback();
req->bodyBuffer.deinitialize();
/***************/
/***************/
if (req->appResponseInitialized) {
deinitializeAppResponse(client, req);
}
ParentClass::deinitializeRequest(client, req);
}
void
Controller::reinitializeAppResponse(Client *client, Request *req) {
AppResponse *resp = &req->appResponse;
req->appResponseInitialized = true;
resp->httpMajor = 1;
resp->httpMinor = 0;
resp->httpState = AppResponse::PARSING_HEADERS;
resp->bodyType = AppResponse::RBT_NO_BODY;
resp->wantKeepAlive = false;
resp->oneHundredContinueSent = false;
resp->statusCode = 0;
resp->parserState.headerParser = getHeaderParserStatePool().construct();
createAppResponseHeaderParser(getContext(), req).initialize();
resp->aux.bodyInfo.contentLength = 0; // Sets the entire union to 0.
resp->bodyAlreadyRead = 0;
resp->date = NULL;
resp->setCookie = NULL;
resp->cacheControl = NULL;
resp->expiresHeader = NULL;
resp->lastModifiedHeader = NULL;
resp->headerCacheBuffers = NULL;
resp->nHeaderCacheBuffers = 0;
psg_lstr_init(&resp->bodyCacheBuffer);
}
void
Controller::deinitializeAppResponse(Client *client, Request *req) {
AppResponse *resp = &req->appResponse;
req->appResponseInitialized = false;
if (resp->httpState == AppResponse::PARSING_HEADERS
&& resp->parserState.headerParser != NULL)
{
getHeaderParserStatePool().destroy(resp->parserState.headerParser);
resp->parserState.headerParser = NULL;
}
ServerKit::HeaderTable::Iterator it(resp->headers);
while (*it != NULL) {
psg_lstr_deinit(&it->header->key);
psg_lstr_deinit(&it->header->origKey);
psg_lstr_deinit(&it->header->val);
it.next();
}
it = ServerKit::HeaderTable::Iterator(resp->secureHeaders);
while (*it != NULL) {
psg_lstr_deinit(&it->header->key);
psg_lstr_deinit(&it->header->origKey);
psg_lstr_deinit(&it->header->val);
it.next();
}
resp->headers.clear();
resp->secureHeaders.clear();
if (resp->setCookie != NULL) {
psg_lstr_deinit(resp->setCookie);
}
psg_lstr_deinit(&resp->bodyCacheBuffer);
}
ServerKit::Channel::Result
Controller::onRequestBody(Client *client, Request *req, const MemoryKit::mbuf &buffer,
int errcode)
{
switch (req->state) {
case Request::BUFFERING_REQUEST_BODY:
return whenBufferingBody_onRequestBody(client, req, buffer, errcode);
case Request::FORWARDING_BODY_TO_APP:
return whenSendingRequest_onRequestBody(client, req, buffer, errcode);
default:
P_BUG("Unknown state " << req->state);
return Channel::Result(0, false);
}
}
void
Controller::onNextRequestEarlyReadError(Client *client, Request *req, int errcode) {
ParentClass::onNextRequestEarlyReadError(client, req, errcode);
if (req->halfClosePolicy == Request::HALF_CLOSE_UPON_NEXT_REQUEST_EARLY_READ_ERROR) {
SKC_TRACE(client, 3, "Half-closing application socket with SHUT_WR"
" because the next request's early read error has been detected: "
<< ServerKit::getErrorDesc(errcode) << " (errno=" << errcode << ")");
req->halfClosePolicy = Request::HALF_CLOSE_PERFORMED;
assert(req->session != NULL);
::shutdown(req->session->fd(), SHUT_WR);
}
}
bool
Controller::shouldDisconnectClientOnShutdown(Client *client) {
return ParentClass::shouldDisconnectClientOnShutdown(client)
|| !mainConfig.gracefulExit;
}
bool
Controller::shouldAutoDechunkBody(Client *client, Request *req) {
// When buffering the body, we'll want to buffer the dechunked data,
// (and when passing the request to the app we'll also add Content-Length
// and remove Transfer-Encoding) so turn auto-dechunking on in that case.
//
// Otherwise we'll want to disable auto-dechunking because we'll
// pass the raw chunked body to the app.
return req->requestBodyBuffering;
}
bool
Controller::supportsUpgrade(Client *client, Request *req) {
return true;
}
/****************************
*
* Public methods
*
****************************/
unsigned int
Controller::getClientName(const Client *client, char *buf, size_t size) const {
char *pos = buf;
const char *end = buf + size - 1;
// WARNING: If you change the format, be sure to change
// ApiServer::extractThreadNumberFromClientName() too.
pos += uintToString(mainConfig.threadNumber, pos, end - pos);
pos = appendData(pos, end, "-", 1);
pos += uintToString(client->number, pos, end - pos);
*pos = '\0';
return pos - buf;
}
StaticString
Controller::getServerName() const {
return mainConfig.serverLogName;
}
} // namespace Core
} // namespace Passenger
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