HttpServerConnection: verify requests via Boost ASIO + Beast

This commit is contained in:
Alexander A. Klimov 2019-02-14 16:10:41 +01:00
parent 04a9879acc
commit 7fe0431ada
3 changed files with 381 additions and 360 deletions

View File

@ -619,12 +619,6 @@ void ApiListener::NewClientHandlerInternal(const Socket::Ptr& client, const Stri
aclient->Disconnect();
}
}
} else {
Log(LogNotice, "ApiListener", "New HTTP client");
HttpServerConnection::Ptr aclient = new HttpServerConnection(identity, verify_ok, tlsStream);
aclient->Start();
AddHttpClient(aclient);
}
}
@ -790,6 +784,14 @@ void ApiListener::NewClientHandlerInternal(boost::asio::yield_context yc, const
ctype = ClientHttp;
}
}
if (ctype != ClientJsonRpc) {
Log(LogNotice, "ApiListener", "New HTTP client");
HttpServerConnection::Ptr aclient = new HttpServerConnection(identity, verify_ok, client);
AddHttpClient(aclient);
aclient->Start();
}
}
void ApiListener::SyncClient(const JsonRpcConnection::Ptr& aclient, const Endpoint::Ptr& endpoint, bool needSync)

View File

@ -6,306 +6,94 @@
#include "remote/apilistener.hpp"
#include "remote/apifunction.hpp"
#include "remote/jsonrpc.hpp"
#include "base/application.hpp"
#include "base/base64.hpp"
#include "base/convert.hpp"
#include "base/configtype.hpp"
#include "base/defer.hpp"
#include "base/exception.hpp"
#include "base/io-engine.hpp"
#include "base/logger.hpp"
#include "base/objectlock.hpp"
#include "base/timer.hpp"
#include "base/tlsstream.hpp"
#include "base/utility.hpp"
#include <memory>
#include <stdexcept>
#include <boost/asio/spawn.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/system/system_error.hpp>
#include <boost/thread/once.hpp>
using namespace icinga;
static boost::once_flag l_HttpServerConnectionOnceFlag = BOOST_ONCE_INIT;
static Timer::Ptr l_HttpServerConnectionTimeoutTimer;
auto const l_ServerHeader ("Icinga/" + Application::GetAppVersion());
HttpServerConnection::HttpServerConnection(const String& identity, bool authenticated, const TlsStream::Ptr& stream)
: m_Stream(stream), m_Seen(Utility::GetTime()), m_CurrentRequest(stream), m_PendingRequests(0)
HttpServerConnection::HttpServerConnection(const String& identity, bool authenticated, const std::shared_ptr<AsioTlsStream>& stream)
: m_Stream(stream)
{
boost::call_once(l_HttpServerConnectionOnceFlag, &HttpServerConnection::StaticInitialize);
m_RequestQueue.SetName("HttpServerConnection");
if (authenticated)
if (authenticated) {
m_ApiUser = ApiUser::GetByClientCN(identity);
/* Cache the peer address. */
m_PeerAddress = "<unknown>";
if (stream) {
Socket::Ptr socket = m_Stream->GetSocket();
if (socket) {
m_PeerAddress = socket->GetPeerAddress();
}
}
}
void HttpServerConnection::StaticInitialize()
{
l_HttpServerConnectionTimeoutTimer = new Timer();
l_HttpServerConnectionTimeoutTimer->OnTimerExpired.connect(std::bind(&HttpServerConnection::TimeoutTimerHandler));
l_HttpServerConnectionTimeoutTimer->SetInterval(5);
l_HttpServerConnectionTimeoutTimer->Start();
{
std::ostringstream address;
auto endpoint (stream->lowest_layer().remote_endpoint());
address << '[' << endpoint.address() << "]:" << endpoint.port();
m_PeerAddress = address.str();
}
}
void HttpServerConnection::Start()
{
/* the stream holds an owning reference to this object through the callback we're registering here */
m_Stream->RegisterDataHandler(std::bind(&HttpServerConnection::DataAvailableHandler, HttpServerConnection::Ptr(this)));
if (m_Stream->IsDataAvailable())
DataAvailableHandler();
namespace asio = boost::asio;
asio::spawn(IoEngine::Get().GetIoService(), [this](asio::yield_context yc) { ProcessMessages(yc); });
}
ApiUser::Ptr HttpServerConnection::GetApiUser() const
static inline
bool EnsureValidHeaders(
AsioTlsStream& stream,
boost::beast::flat_buffer& buf,
boost::beast::http::parser<true, boost::beast::http::string_body>& parser,
boost::beast::http::response<boost::beast::http::string_body>& response,
boost::asio::yield_context& yc
)
{
return m_ApiUser;
}
namespace http = boost::beast::http;
TlsStream::Ptr HttpServerConnection::GetStream() const
{
return m_Stream;
}
void HttpServerConnection::Disconnect()
{
boost::recursive_mutex::scoped_try_lock lock(m_DataHandlerMutex);
if (!lock.owns_lock()) {
Log(LogInformation, "HttpServerConnection", "Unable to disconnect Http client, I/O thread busy");
return;
}
Log(LogInformation, "HttpServerConnection")
<< "HTTP client disconnected (from " << m_PeerAddress << ")";
ApiListener::Ptr listener = ApiListener::GetInstance();
listener->RemoveHttpClient(this);
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(nullptr);
m_Stream->Close();
}
bool HttpServerConnection::ProcessMessage()
{
bool res;
HttpResponse response(m_Stream, m_CurrentRequest);
if (!m_CurrentRequest.CompleteHeaders) {
try {
try {
res = m_CurrentRequest.ParseHeaders(m_Context, false);
} catch (const std::invalid_argument& ex) {
response.SetStatus(400, "Bad Request");
String msg = String("<h1>Bad Request</h1><p><pre>") + ex.what() + "</pre></p>";
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(m_Stream);
m_Stream->Shutdown();
return false;
} catch (const std::exception& ex) {
response.SetStatus(500, "Internal Server Error");
String msg = "<h1>Internal Server Error</h1><p><pre>" + DiagnosticInformation(ex) + "</pre></p>";
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(m_Stream);
m_Stream->Shutdown();
return false;
}
return res;
}
if (!m_CurrentRequest.CompleteHeaderCheck) {
m_CurrentRequest.CompleteHeaderCheck = true;
if (!ManageHeaders(response)) {
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(m_Stream);
m_Stream->Shutdown();
return false;
}
}
if (!m_CurrentRequest.CompleteBody) {
try {
res = m_CurrentRequest.ParseBody(m_Context, false);
} catch (const std::invalid_argument& ex) {
response.SetStatus(400, "Bad Request");
String msg = String("<h1>Bad Request</h1><p><pre>") + ex.what() + "</pre></p>";
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(m_Stream);
m_Stream->Shutdown();
return false;
} catch (const std::exception& ex) {
response.SetStatus(500, "Internal Server Error");
String msg = "<h1>Internal Server Error</h1><p><pre>" + DiagnosticInformation(ex) + "</pre></p>";
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(m_Stream);
m_Stream->Shutdown();
return false;
}
return res;
}
m_RequestQueue.Enqueue(std::bind(&HttpServerConnection::ProcessMessageAsync,
HttpServerConnection::Ptr(this), m_CurrentRequest, response, m_AuthenticatedUser));
m_Seen = Utility::GetTime();
m_PendingRequests++;
m_CurrentRequest.~HttpRequest();
new (&m_CurrentRequest) HttpRequest(m_Stream);
return false;
}
bool HttpServerConnection::ManageHeaders(HttpResponse& response)
{
if (m_CurrentRequest.Headers->Get("expect") == "100-continue") {
String continueResponse = "HTTP/1.1 100 Continue\r\n\r\n";
m_Stream->Write(continueResponse.CStr(), continueResponse.GetLength());
}
/* client_cn matched. */
if (m_ApiUser)
m_AuthenticatedUser = m_ApiUser;
else
m_AuthenticatedUser = ApiUser::GetByAuthHeader(m_CurrentRequest.Headers->Get("authorization"));
String requestUrl = m_CurrentRequest.RequestUrl->Format();
Log(LogInformation, "HttpServerConnection")
<< "Request: " << m_CurrentRequest.RequestMethod << " " << requestUrl
<< " (from " << m_PeerAddress << ")"
<< ", user: " << (m_AuthenticatedUser ? m_AuthenticatedUser->GetName() : "<unauthenticated>") << ")";
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return false;
Array::Ptr headerAllowOrigin = listener->GetAccessControlAllowOrigin();
if (headerAllowOrigin && headerAllowOrigin->GetLength() != 0) {
String origin = m_CurrentRequest.Headers->Get("origin");
{
ObjectLock olock(headerAllowOrigin);
for (const String& allowedOrigin : headerAllowOrigin) {
if (allowedOrigin == origin)
response.AddHeader("Access-Control-Allow-Origin", origin);
}
http::async_read_header(stream, buf, parser, yc);
} catch (const boost::system::system_error& ex) {
/**
* Unfortunately there's no way to tell an HTTP protocol error
* from an error on a lower layer:
*
* <https://github.com/boostorg/beast/issues/643>
*/
throw std::invalid_argument(ex.what());
}
response.AddHeader("Access-Control-Allow-Credentials", "true");
String accessControlRequestMethodHeader = m_CurrentRequest.Headers->Get("access-control-request-method");
if (m_CurrentRequest.RequestMethod == "OPTIONS" && !accessControlRequestMethodHeader.IsEmpty()) {
response.SetStatus(200, "OK");
response.AddHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
response.AddHeader("Access-Control-Allow-Headers", "Authorization, X-HTTP-Method-Override");
String msg = "Preflight OK";
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
return false;
switch (parser.get().version()) {
case 10:
case 11:
break;
default:
throw std::invalid_argument("Unsupported HTTP version");
}
}
} catch (const std::invalid_argument& ex) {
response.result(http::status::bad_request);
response.set(http::field::content_type, "text/html");
response.body() = String("<h1>Bad Request</h1><p><pre>") + ex.what() + "</pre></p>";
response.set(http::field::content_length, response.body().size());
response.set(http::field::connection, "close");
if (m_CurrentRequest.RequestMethod != "GET" && m_CurrentRequest.Headers->Get("accept") != "application/json") {
response.SetStatus(400, "Wrong Accept header");
response.AddHeader("Content-Type", "text/html");
String msg = "<h1>Accept header is missing or not set to 'application/json'.</h1>";
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
return false;
}
if (!m_AuthenticatedUser) {
Log(LogWarning, "HttpServerConnection")
<< "Unauthorized request: " << m_CurrentRequest.RequestMethod << " " << requestUrl;
response.SetStatus(401, "Unauthorized");
response.AddHeader("WWW-Authenticate", "Basic realm=\"Icinga 2\"");
if (m_CurrentRequest.Headers->Get("accept") == "application/json") {
Dictionary::Ptr result = new Dictionary({
{ "error", 401 },
{ "status", "Unauthorized. Please check your user credentials." }
});
HttpUtility::SendJsonBody(response, nullptr, result);
} else {
response.AddHeader("Content-Type", "text/html");
String msg = "<h1>Unauthorized. Please check your user credentials.</h1>";
response.WriteBody(msg.CStr(), msg.GetLength());
}
response.Finish();
return false;
}
static const size_t defaultContentLengthLimit = 1 * 1024 * 1024;
size_t maxSize = defaultContentLengthLimit;
Array::Ptr permissions = m_AuthenticatedUser->GetPermissions();
if (permissions) {
ObjectLock olock(permissions);
for (const Value& permissionInfo : permissions) {
String permission;
if (permissionInfo.IsObjectType<Dictionary>())
permission = static_cast<Dictionary::Ptr>(permissionInfo)->Get("permission");
else
permission = permissionInfo;
static std::vector<std::pair<String, size_t>> specialContentLengthLimits {
{ "config/modify", 512 * 1024 * 1024 }
};
for (const auto& limitInfo : specialContentLengthLimits) {
if (limitInfo.second <= maxSize)
continue;
if (Utility::Match(permission, limitInfo.first))
maxSize = limitInfo.second;
}
}
}
size_t contentLength = m_CurrentRequest.Headers->Get("content-length");
if (contentLength > maxSize) {
response.SetStatus(400, "Bad Request");
String msg = String("<h1>Content length exceeded maximum</h1>");
response.WriteBody(msg.CStr(), msg.GetLength());
response.Finish();
http::async_write(stream, response, yc);
stream.async_flush(yc);
return false;
}
@ -313,64 +101,319 @@ bool HttpServerConnection::ManageHeaders(HttpResponse& response)
return true;
}
void HttpServerConnection::ProcessMessageAsync(HttpRequest& request, HttpResponse& response, const ApiUser::Ptr& user)
static inline
void HandleExpect100(
AsioTlsStream& stream,
boost::beast::http::request<boost::beast::http::string_body>& request,
boost::asio::yield_context& yc
)
{
response.RebindRequest(request);
namespace http = boost::beast::http;
if (request[http::field::expect] == "100-continue") {
http::response<http::string_body> response;
response.result(http::status::continue_);
http::async_write(stream, response, yc);
stream.async_flush(yc);
}
}
static inline
bool HandleAccessControl(
AsioTlsStream& stream,
boost::beast::http::request<boost::beast::http::string_body>& request,
boost::beast::http::response<boost::beast::http::string_body>& response,
boost::asio::yield_context& yc
)
{
namespace http = boost::beast::http;
auto listener (ApiListener::GetInstance());
if (listener) {
auto headerAllowOrigin (listener->GetAccessControlAllowOrigin());
if (headerAllowOrigin) {
CpuBoundWork allowOriginHeader (yc);
auto allowedOrigins (headerAllowOrigin->ToSet<String>());
if (!allowedOrigins.empty()) {
auto& origin (request[http::field::origin]);
if (allowedOrigins.find(origin.to_string()) != allowedOrigins.end()) {
response.set(http::field::access_control_allow_origin, origin);
}
allowOriginHeader.Done();
response.set(http::field::access_control_allow_credentials, "true");
if (request.method() == http::verb::options && !request[http::field::access_control_request_method].empty()) {
response.result(http::status::ok);
response.set(http::field::access_control_allow_methods, "GET, POST, PUT, DELETE");
response.set(http::field::access_control_allow_headers, "Authorization, X-HTTP-Method-Override");
response.body() = "Preflight OK";
response.set(http::field::content_length, response.body().size());
response.set(http::field::connection, "close");
http::async_write(stream, response, yc);
stream.async_flush(yc);
return false;
}
}
}
}
return true;
}
static inline
bool EnsureAcceptHeader(
AsioTlsStream& stream,
boost::beast::http::request<boost::beast::http::string_body>& request,
boost::beast::http::response<boost::beast::http::string_body>& response,
boost::asio::yield_context& yc
)
{
namespace http = boost::beast::http;
if (request.method() == http::verb::get && request[http::field::accept] != "application/json") {
response.result(http::status::bad_request);
response.set(http::field::content_type, "text/html");
response.body() = "<h1>Accept header is missing or not set to 'application/json'.</h1>";
response.set(http::field::content_length, response.body().size());
response.set(http::field::connection, "close");
http::async_write(stream, response, yc);
stream.async_flush(yc);
return false;
}
return true;
}
static inline
bool EnsureAuthenticatedUser(
AsioTlsStream& stream,
boost::beast::http::request<boost::beast::http::string_body>& request,
ApiUser::Ptr& authenticatedUser,
boost::beast::http::response<boost::beast::http::string_body>& response,
boost::asio::yield_context& yc
)
{
namespace http = boost::beast::http;
if (!authenticatedUser) {
Log(LogWarning, "HttpServerConnection")
<< "Unauthorized request: " << request.method_string() << ' ' << request.target();
response.result(http::status::unauthorized);
response.set(http::field::www_authenticate, "Basic realm=\"Icinga 2\"");
response.set(http::field::connection, "close");
if (request[http::field::accept] == "application/json") {
HttpUtility::SendJsonBody(response, nullptr, new Dictionary({
{ "error", 401 },
{ "status", "Unauthorized. Please check your user credentials." }
}));
} else {
response.set(http::field::content_type, "text/html");
response.body() = "<h1>Unauthorized. Please check your user credentials.</h1>";
response.set(http::field::content_length, response.body().size());
}
http::async_write(stream, response, yc);
stream.async_flush(yc);
return false;
}
return true;
}
static inline
bool EnsureValidBody(
AsioTlsStream& stream,
boost::beast::flat_buffer& buf,
boost::beast::http::parser<true, boost::beast::http::string_body>& parser,
ApiUser::Ptr& authenticatedUser,
boost::beast::http::response<boost::beast::http::string_body>& response,
boost::asio::yield_context& yc
)
{
namespace http = boost::beast::http;
{
size_t maxSize = 1024 * 1024;
Array::Ptr permissions = authenticatedUser->GetPermissions();
if (permissions) {
CpuBoundWork evalPermissions (yc);
ObjectLock olock(permissions);
for (const Value& permissionInfo : permissions) {
String permission;
if (permissionInfo.IsObjectType<Dictionary>()) {
permission = static_cast<Dictionary::Ptr>(permissionInfo)->Get("permission");
} else {
permission = permissionInfo;
}
static std::vector<std::pair<String, size_t>> specialContentLengthLimits {
{ "config/modify", 512 * 1024 * 1024 }
};
for (const auto& limitInfo : specialContentLengthLimits) {
if (limitInfo.second <= maxSize) {
continue;
}
if (Utility::Match(permission, limitInfo.first)) {
maxSize = limitInfo.second;
}
}
}
}
parser.body_limit(maxSize);
}
try {
HttpHandler::ProcessRequest(user, request, response);
http::async_read(stream, buf, parser, yc);
} catch (const boost::system::system_error& ex) {
/**
* Unfortunately there's no way to tell an HTTP protocol error
* from an error on a lower layer:
*
* <https://github.com/boostorg/beast/issues/643>
*/
response.result(http::status::bad_request);
response.set(http::field::content_type, "text/html");
response.body() = String("<h1>Bad Request</h1><p><pre>") + ex.what() + "</pre></p>";
response.set(http::field::content_length, response.body().size());
response.set(http::field::connection, "close");
http::async_write(stream, response, yc);
stream.async_flush(yc);
return false;
}
return true;
}
static inline
void ProcessRequest(
AsioTlsStream& stream,
boost::beast::http::request<boost::beast::http::string_body>& request,
ApiUser::Ptr& authenticatedUser,
boost::beast::http::response<boost::beast::http::string_body>& response,
boost::asio::yield_context& yc
)
{
namespace http = boost::beast::http;
HttpUtility::SendJsonError(response, nullptr, 503, "Unhandled exception" , "");
http::async_write(stream, response, yc);
stream.async_flush(yc);
}
void HttpServerConnection::ProcessMessages(boost::asio::yield_context yc)
{
namespace beast = boost::beast;
namespace http = beast::http;
Defer removeHttpClient ([this, &yc]() {
auto listener (ApiListener::GetInstance());
if (listener) {
CpuBoundWork removeHttpClient (yc);
listener->RemoveHttpClient(this);
}
});
Defer shutdown ([this, &yc]() {
try {
m_Stream->next_layer().async_shutdown(yc);
} catch (...) {
// https://stackoverflow.com/questions/130117/throwing-exceptions-out-of-a-destructor
}
});
try {
beast::flat_buffer buf;
for (;;) {
http::parser<true, http::string_body> parser;
http::response<http::string_body> response;
parser.header_limit(1024 * 1024);
response.set(http::field::server, l_ServerHeader);
if (!EnsureValidHeaders(*m_Stream, buf, parser, response, yc)) {
break;
}
auto& request (parser.get());
{
auto method (http::string_to_verb(request["X-Http-Method-Override"]));
if (method != http::verb::unknown) {
request.method(method);
}
}
HandleExpect100(*m_Stream, request, yc);
auto authenticatedUser (m_ApiUser);
if (!authenticatedUser) {
CpuBoundWork fetchingAuthenticatedUser (yc);
authenticatedUser = ApiUser::GetByAuthHeader(request[http::field::authorization].to_string());
}
Log(LogInformation, "HttpServerConnection")
<< "Request: " << request.method_string() << ' ' << request.target()
<< " (from " << m_PeerAddress
<< "), user: " << (authenticatedUser ? authenticatedUser->GetName() : "<unauthenticated>") << ')';
if (!HandleAccessControl(*m_Stream, request, response, yc)) {
break;
}
if (!EnsureAcceptHeader(*m_Stream, request, response, yc)) {
break;
}
if (!EnsureAuthenticatedUser(*m_Stream, request, authenticatedUser, response, yc)) {
break;
}
if (!EnsureValidBody(*m_Stream, buf, parser, authenticatedUser, response, yc)) {
break;
}
ProcessRequest(*m_Stream, request, authenticatedUser, response, yc);
if (request.version() != 11 || request[http::field::connection] == "close") {
break;
}
}
} catch (const std::exception& ex) {
Log(LogCritical, "HttpServerConnection")
<< "Unhandled exception while processing Http request: " << DiagnosticInformation(ex);
HttpUtility::SendJsonError(response, nullptr, 503, "Unhandled exception" , DiagnosticInformation(ex));
}
response.Finish();
m_PendingRequests--;
}
void HttpServerConnection::DataAvailableHandler()
{
bool close = false;
if (!m_Stream->IsEof()) {
boost::recursive_mutex::scoped_try_lock lock(m_DataHandlerMutex);
if (!lock.owns_lock()) {
Log(LogNotice, "HttpServerConnection", "Unable to process available data, they're already being processed in another thread");
return;
}
try {
while (ProcessMessage())
; /* empty loop body */
} catch (const std::exception& ex) {
Log(LogWarning, "HttpServerConnection")
<< "Error while reading Http request: " << DiagnosticInformation(ex);
close = true;
}
} else
close = true;
if (close)
Disconnect();
}
void HttpServerConnection::CheckLiveness()
{
if (m_Seen < Utility::GetTime() - 10 && m_PendingRequests == 0 && m_Stream->IsEof()) {
Log(LogInformation, "HttpServerConnection")
<< "No messages for Http connection have been received in the last 10 seconds.";
Disconnect();
<< "Unhandled exception while processing HTTP request: " << DiagnosticInformation(ex);
}
}
void HttpServerConnection::TimeoutTimerHandler()
{
ApiListener::Ptr listener = ApiListener::GetInstance();
for (const HttpServerConnection::Ptr& client : listener->GetHttpClients()) {
client->CheckLiveness();
}
}

View File

@ -3,12 +3,11 @@
#ifndef HTTPSERVERCONNECTION_H
#define HTTPSERVERCONNECTION_H
#include "remote/httprequest.hpp"
#include "remote/httpresponse.hpp"
#include "remote/apiuser.hpp"
#include "base/string.hpp"
#include "base/tlsstream.hpp"
#include "base/workqueue.hpp"
#include <boost/thread/recursive_mutex.hpp>
#include <memory>
#include <boost/asio/spawn.hpp>
namespace icinga
{
@ -23,39 +22,16 @@ class HttpServerConnection final : public Object
public:
DECLARE_PTR_TYPEDEFS(HttpServerConnection);
HttpServerConnection(const String& identity, bool authenticated, const TlsStream::Ptr& stream);
HttpServerConnection(const String& identity, bool authenticated, const std::shared_ptr<AsioTlsStream>& stream);
void Start();
ApiUser::Ptr GetApiUser() const;
bool IsAuthenticated() const;
TlsStream::Ptr GetStream() const;
void Disconnect();
private:
ApiUser::Ptr m_ApiUser;
ApiUser::Ptr m_AuthenticatedUser;
TlsStream::Ptr m_Stream;
double m_Seen;
HttpRequest m_CurrentRequest;
boost::recursive_mutex m_DataHandlerMutex;
WorkQueue m_RequestQueue;
int m_PendingRequests;
std::shared_ptr<AsioTlsStream> m_Stream;
String m_PeerAddress;
StreamReadContext m_Context;
bool ProcessMessage();
void DataAvailableHandler();
static void StaticInitialize();
static void TimeoutTimerHandler();
void CheckLiveness();
bool ManageHeaders(HttpResponse& response);
void ProcessMessageAsync(HttpRequest& request, HttpResponse& response, const ApiUser::Ptr&);
void ProcessMessages(boost::asio::yield_context yc);
};
}