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arangodb/lib/HttpServer/ApplicationHttpServer.cpp

315 lines
11 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// @brief application http server feature
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2004-2012 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Copyright 2010-2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
#include "ApplicationHttpServer.h"
#include "Basics/delete_object.h"
#include "Dispatcher/ApplicationDispatcher.h"
#include "HttpServer/HttpHandler.h"
#include "HttpServer/HttpServer.h"
#include "Logger/Logger.h"
#include "Scheduler/ApplicationScheduler.h"
using namespace triagens::basics;
using namespace triagens::rest;
using namespace std;
// -----------------------------------------------------------------------------
// --SECTION-- constructors and destructors
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Scheduler
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief constructor
////////////////////////////////////////////////////////////////////////////////
ApplicationHttpServer::ApplicationHttpServer (ApplicationServer* applicationServer,
ApplicationScheduler* applicationScheduler,
ApplicationDispatcher* applicationDispatcher)
: ApplicationFeature("HttpServer"),
_applicationServer(applicationServer),
_applicationScheduler(applicationScheduler),
_applicationDispatcher(applicationDispatcher),
_showPort(true),
_requireKeepAlive(false),
_httpServers(),
_httpPorts(),
_httpAddressPorts() {
}
////////////////////////////////////////////////////////////////////////////////
/// @brief destructor
////////////////////////////////////////////////////////////////////////////////
ApplicationHttpServer::~ApplicationHttpServer () {
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- public methods
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Scheduler
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief shows the port options
////////////////////////////////////////////////////////////////////////////////
void ApplicationHttpServer::showPortOptions (bool value) {
_showPort = value;
}
////////////////////////////////////////////////////////////////////////////////
/// @brief adds a http address:port
////////////////////////////////////////////////////////////////////////////////
AddressPort ApplicationHttpServer::addPort (string const& name) {
AddressPort ap;
if (! ap.split(name)) {
LOGGER_ERROR << "unknown server:port definition '" << name << "'";
}
else {
_httpAddressPorts.push_back(ap);
}
return ap;
}
////////////////////////////////////////////////////////////////////////////////
/// @brief builds the http server
////////////////////////////////////////////////////////////////////////////////
HttpServer* ApplicationHttpServer::buildServer (HttpHandlerFactory* httpHandlerFactory) {
return buildHttpServer(0, httpHandlerFactory, _httpAddressPorts);
}
////////////////////////////////////////////////////////////////////////////////
/// @brief builds the http server
////////////////////////////////////////////////////////////////////////////////
HttpServer* ApplicationHttpServer::buildServer (HttpHandlerFactory* httpHandlerFactory,
vector<AddressPort> const& ports) {
if (ports.empty()) {
delete httpHandlerFactory;
return 0;
}
else {
return buildHttpServer(0, httpHandlerFactory, ports);
}
}
////////////////////////////////////////////////////////////////////////////////
/// @brief builds the http server
////////////////////////////////////////////////////////////////////////////////
HttpServer* ApplicationHttpServer::buildServer (HttpServer* httpServer,
HttpHandlerFactory* httpHandlerFactory,
vector<AddressPort> const& ports) {
if (ports.empty()) {
delete httpHandlerFactory;
return 0;
}
else {
return buildHttpServer(httpServer, httpHandlerFactory, ports);
}
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- ApplicationFeature methods
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup ApplicationServer
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// {@inheritDoc}
////////////////////////////////////////////////////////////////////////////////
void ApplicationHttpServer::setupOptions (map<string, ProgramOptionsDescription>& options) {
if (_showPort) {
options[ApplicationServer::OPTIONS_SERVER]
("server.port", &_httpPorts, "listen port or address:port")
;
}
options[ApplicationServer::OPTIONS_SERVER + ":help-extended"]
("server.require-keep-alive", "close connection, if keep-alive is missing")
;
}
////////////////////////////////////////////////////////////////////////////////
/// {@inheritDoc}
////////////////////////////////////////////////////////////////////////////////
bool ApplicationHttpServer::parsePhase2 (ProgramOptions& options) {
if (options.has("server.require-keep-alive")) {
_requireKeepAlive= true;
}
for (vector<string>::const_iterator i = _httpPorts.begin(); i != _httpPorts.end(); ++i) {
addPort(*i);
}
return true;
}
////////////////////////////////////////////////////////////////////////////////
/// {@inheritDoc}
////////////////////////////////////////////////////////////////////////////////
void ApplicationHttpServer::shutdown () {
for_each(_httpServers.begin(), _httpServers.end(), DeleteObject());
_httpServers.clear();
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- protected methods
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @addtogroup HttpServer
/// @{
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// @brief build an http server
////////////////////////////////////////////////////////////////////////////////
HttpServer* ApplicationHttpServer::buildHttpServer (HttpServer* httpServer,
HttpHandlerFactory* httpHandlerFactory,
vector<AddressPort> const& ports) {
Scheduler* scheduler = _applicationScheduler->scheduler();
if (scheduler == 0) {
LOGGER_FATAL << "no scheduler is known, cannot create http server";
TRI_ShutdownLogging();
exit(EXIT_FAILURE);
}
// create new server
if (httpServer == 0) {
Dispatcher* dispatcher = 0;
if (_applicationDispatcher != 0) {
dispatcher = _applicationDispatcher->dispatcher();
}
httpServer = new HttpServer(scheduler, dispatcher);
}
httpServer->setHandlerFactory(httpHandlerFactory);
if (_requireKeepAlive) {
httpServer->setCloseWithoutKeepAlive(true);
}
// keep a list of active server
_httpServers.push_back(httpServer);
// open http ports
deque<AddressPort> addresses;
addresses.insert(addresses.begin(), ports.begin(), ports.end());
_applicationServer->raisePrivileges();
while (! addresses.empty()) {
AddressPort ap = addresses[0];
addresses.pop_front();
string bindAddress = ap._address;
int port = ap._port;
bool result;
if (bindAddress.empty()) {
LOGGER_TRACE << "trying to open port " << port << " for http requests";
result = httpServer->addPort(port, _applicationScheduler->addressReuseAllowed());
}
else {
LOGGER_TRACE << "trying to open address " << bindAddress
<< " on port " << port
<< " for http requests";
result = httpServer->addPort(bindAddress, port, _applicationScheduler->addressReuseAllowed());
}
if (result) {
LOGGER_DEBUG << "opened port " << port << " for " << (bindAddress.empty() ? "any" : bindAddress);
}
else {
LOGGER_TRACE << "failed to open port " << port << " for " << (bindAddress.empty() ? "any" : bindAddress);
addresses.push_back(ap);
if (scheduler->isShutdownInProgress()) {
addresses.clear();
}
else {
sleep(1);
}
}
}
_applicationServer->dropPrivileges();
return httpServer;
}
////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////
// -----------------------------------------------------------------------------
// --SECTION-- END-OF-FILE
// -----------------------------------------------------------------------------
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