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apilistener.cpp
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apilistener.cpp
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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "remote/apilistener.hpp"
#include "remote/apilistener-ti.cpp"
#include "remote/jsonrpcconnection.hpp"
#include "remote/endpoint.hpp"
#include "remote/jsonrpc.hpp"
#include "remote/apifunction.hpp"
#include "remote/configpackageutility.hpp"
#include "remote/configobjectutility.hpp"
#include "base/atomic-file.hpp"
#include "base/convert.hpp"
#include "base/defer.hpp"
#include "base/io-engine.hpp"
#include "base/netstring.hpp"
#include "base/json.hpp"
#include "base/configtype.hpp"
#include "base/logger.hpp"
#include "base/objectlock.hpp"
#include "base/stdiostream.hpp"
#include "base/perfdatavalue.hpp"
#include "base/application.hpp"
#include "base/context.hpp"
#include "base/statsfunction.hpp"
#include "base/exception.hpp"
#include "base/tcpsocket.hpp"
#include <boost/asio/buffer.hpp>
#include <boost/asio/io_context_strand.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/spawn.hpp>
#include <boost/asio/ssl/context.hpp>
#include <boost/date_time/posix_time/posix_time_duration.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/regex.hpp>
#include <boost/system/error_code.hpp>
#include <boost/thread/locks.hpp>
#include <climits>
#include <cstdint>
#include <fstream>
#include <memory>
#include <openssl/ssl.h>
#include <openssl/tls1.h>
#include <openssl/x509.h>
#include <sstream>
#include <utility>
using namespace icinga;
REGISTER_TYPE(ApiListener);
boost::signals2::signal<void(bool)> ApiListener::OnMasterChanged;
ApiListener::Ptr ApiListener::m_Instance;
REGISTER_STATSFUNCTION(ApiListener, &ApiListener::StatsFunc);
REGISTER_APIFUNCTION(Hello, icinga, &ApiListener::HelloAPIHandler);
ApiListener::ApiListener()
{
m_RelayQueue.SetName("ApiListener, RelayQueue");
m_SyncQueue.SetName("ApiListener, SyncQueue");
}
String ApiListener::GetApiDir()
{
return Configuration::DataDir + "/api/";
}
String ApiListener::GetApiZonesDir()
{
return GetApiDir() + "zones/";
}
String ApiListener::GetApiZonesStageDir()
{
return GetApiDir() + "zones-stage/";
}
String ApiListener::GetCertsDir()
{
return Configuration::DataDir + "/certs/";
}
String ApiListener::GetCaDir()
{
return Configuration::DataDir + "/ca/";
}
String ApiListener::GetCertificateRequestsDir()
{
return Configuration::DataDir + "/certificate-requests/";
}
String ApiListener::GetDefaultCertPath()
{
return GetCertsDir() + "/" + ScriptGlobal::Get("NodeName") + ".crt";
}
String ApiListener::GetDefaultKeyPath()
{
return GetCertsDir() + "/" + ScriptGlobal::Get("NodeName") + ".key";
}
String ApiListener::GetDefaultCaPath()
{
return GetCertsDir() + "/ca.crt";
}
double ApiListener::GetTlsHandshakeTimeout() const
{
return Configuration::TlsHandshakeTimeout;
}
void ApiListener::SetTlsHandshakeTimeout(double value, bool suppress_events, const Value& cookie)
{
Configuration::TlsHandshakeTimeout = value;
}
void ApiListener::CopyCertificateFile(const String& oldCertPath, const String& newCertPath)
{
struct stat st1, st2;
if (!oldCertPath.IsEmpty() && stat(oldCertPath.CStr(), &st1) >= 0 && (stat(newCertPath.CStr(), &st2) < 0 || st1.st_mtime > st2.st_mtime)) {
Log(LogWarning, "ApiListener")
<< "Copying '" << oldCertPath << "' certificate file to '" << newCertPath << "'";
Utility::MkDirP(Utility::DirName(newCertPath), 0700);
Utility::CopyFile(oldCertPath, newCertPath);
}
}
void ApiListener::OnConfigLoaded()
{
if (m_Instance)
BOOST_THROW_EXCEPTION(ScriptError("Only one ApiListener object is allowed.", GetDebugInfo()));
m_Instance = this;
String defaultCertPath = GetDefaultCertPath();
String defaultKeyPath = GetDefaultKeyPath();
String defaultCaPath = GetDefaultCaPath();
/* Migrate certificate location < 2.8 to the new default path. */
String oldCertPath = GetCertPath();
String oldKeyPath = GetKeyPath();
String oldCaPath = GetCaPath();
CopyCertificateFile(oldCertPath, defaultCertPath);
CopyCertificateFile(oldKeyPath, defaultKeyPath);
CopyCertificateFile(oldCaPath, defaultCaPath);
if (!oldCertPath.IsEmpty() && !oldKeyPath.IsEmpty() && !oldCaPath.IsEmpty()) {
Log(LogWarning, "ApiListener", "Please read the upgrading documentation for v2.8: https://icinga.com/docs/icinga2/latest/doc/16-upgrading-icinga-2/");
}
/* Create the internal API object storage. */
ConfigObjectUtility::CreateStorage();
/* Cache API packages and their active stage name. */
UpdateActivePackageStagesCache();
/* set up SSL context */
std::shared_ptr<X509> cert;
try {
cert = GetX509Certificate(defaultCertPath);
} catch (const std::exception&) {
BOOST_THROW_EXCEPTION(ScriptError("Cannot get certificate from cert path: '"
+ defaultCertPath + "'.", GetDebugInfo()));
}
try {
SetIdentity(GetCertificateCN(cert));
} catch (const std::exception&) {
BOOST_THROW_EXCEPTION(ScriptError("Cannot get certificate common name from cert path: '"
+ defaultCertPath + "'.", GetDebugInfo()));
}
Log(LogInformation, "ApiListener")
<< "My API identity: " << GetIdentity();
UpdateSSLContext();
}
std::shared_ptr<X509> ApiListener::RenewCert(const std::shared_ptr<X509>& cert, bool ca)
{
std::shared_ptr<EVP_PKEY> pubkey (X509_get_pubkey(cert.get()), EVP_PKEY_free);
auto subject (X509_get_subject_name(cert.get()));
auto cacert (GetX509Certificate(GetDefaultCaPath()));
auto newcert (CreateCertIcingaCA(pubkey.get(), subject, ca));
/* verify that the new cert matches the CA we're using for the ApiListener;
* this ensures that the CA we have in /var/lib/icinga2/ca matches the one
* we're using for cluster connections (there's no point in sending a client
* a certificate it wouldn't be able to use to connect to us anyway) */
try {
if (!VerifyCertificate(cacert, newcert, GetCrlPath())) {
Log(LogWarning, "ApiListener")
<< "The CA in '" << GetDefaultCaPath() << "' does not match the CA which Icinga uses "
<< "for its own cluster connections. This is most likely a configuration problem.";
return nullptr;
}
} catch (const std::exception&) { } /* Swallow the exception on purpose, cacert will never be a non-CA certificate. */
return newcert;
}
void ApiListener::UpdateSSLContext()
{
auto ctx (SetupSslContext(GetDefaultCertPath(), GetDefaultKeyPath(), GetDefaultCaPath(), GetCrlPath(), GetCipherList(), GetTlsProtocolmin(), GetDebugInfo()));
{
boost::unique_lock<decltype(m_SSLContextMutex)> lock (m_SSLContextMutex);
m_SSLContext = std::move(ctx);
}
for (const Endpoint::Ptr& endpoint : ConfigType::GetObjectsByType<Endpoint>()) {
for (const JsonRpcConnection::Ptr& client : endpoint->GetClients()) {
client->Disconnect();
}
}
for (const JsonRpcConnection::Ptr& client : m_AnonymousClients) {
client->Disconnect();
}
}
void ApiListener::OnAllConfigLoaded()
{
m_LocalEndpoint = Endpoint::GetByName(GetIdentity());
if (!m_LocalEndpoint)
BOOST_THROW_EXCEPTION(ScriptError("Endpoint object for '" + GetIdentity() + "' is missing.", GetDebugInfo()));
}
/**
* Starts the component.
*/
void ApiListener::Start(bool runtimeCreated)
{
Log(LogInformation, "ApiListener")
<< "'" << GetName() << "' started.";
SyncLocalZoneDirs();
m_RenewOwnCertTimer = Timer::Create();
if (Utility::PathExists(GetIcingaCADir() + "/ca.key")) {
RenewOwnCert();
RenewCA();
m_RenewOwnCertTimer->OnTimerExpired.connect([this](const Timer * const&) {
RenewOwnCert();
RenewCA();
});
} else {
m_RenewOwnCertTimer->OnTimerExpired.connect([this](const Timer * const&) {
JsonRpcConnection::SendCertificateRequest(nullptr, nullptr, String());
});
}
m_RenewOwnCertTimer->SetInterval(RENEW_INTERVAL);
m_RenewOwnCertTimer->Start();
ObjectImpl<ApiListener>::Start(runtimeCreated);
{
std::unique_lock<std::mutex> lock(m_LogLock);
OpenLogFile();
}
/* create the primary JSON-RPC listener */
if (!AddListener(GetBindHost(), GetBindPort())) {
Log(LogCritical, "ApiListener")
<< "Cannot add listener on host '" << GetBindHost() << "' for port '" << GetBindPort() << "'.";
Application::Exit(EXIT_FAILURE);
}
m_Timer = Timer::Create();
m_Timer->OnTimerExpired.connect([this](const Timer * const&) { ApiTimerHandler(); });
m_Timer->SetInterval(5);
m_Timer->Start();
m_Timer->Reschedule(0);
m_ReconnectTimer = Timer::Create();
m_ReconnectTimer->OnTimerExpired.connect([this](const Timer * const&) { ApiReconnectTimerHandler(); });
m_ReconnectTimer->SetInterval(10);
m_ReconnectTimer->Start();
m_ReconnectTimer->Reschedule(0);
/* Keep this in relative sync with the cold startup in UpdateObjectAuthority() and the reconnect interval above.
* Previous: 60s reconnect, 30s OA, 60s cold startup.
* Now: 10s reconnect, 10s OA, 30s cold startup.
*/
m_AuthorityTimer = Timer::Create();
m_AuthorityTimer->OnTimerExpired.connect([](const Timer * const&) { UpdateObjectAuthority(); });
m_AuthorityTimer->SetInterval(10);
m_AuthorityTimer->Start();
m_CleanupCertificateRequestsTimer = Timer::Create();
m_CleanupCertificateRequestsTimer->OnTimerExpired.connect([this](const Timer * const&) { CleanupCertificateRequestsTimerHandler(); });
m_CleanupCertificateRequestsTimer->SetInterval(3600);
m_CleanupCertificateRequestsTimer->Start();
m_CleanupCertificateRequestsTimer->Reschedule(0);
m_ApiPackageIntegrityTimer = Timer::Create();
m_ApiPackageIntegrityTimer->OnTimerExpired.connect([this](const Timer * const&) { CheckApiPackageIntegrity(); });
m_ApiPackageIntegrityTimer->SetInterval(300);
m_ApiPackageIntegrityTimer->Start();
OnMasterChanged(true);
}
void ApiListener::RenewOwnCert()
{
auto certPath (GetDefaultCertPath());
auto cert (GetX509Certificate(certPath));
if (IsCertUptodate(cert)) {
return;
}
Log(LogInformation, "ApiListener")
<< "Our certificate will expire soon, but we own the CA. Renewing.";
cert = RenewCert(cert);
if (!cert) {
return;
}
AtomicFile::Write(certPath, 0644, CertificateToString(cert));
UpdateSSLContext();
}
void ApiListener::RenewCA()
{
auto certPath (GetCaDir() + "/ca.crt");
auto cert (GetX509Certificate(certPath));
if (IsCaUptodate(cert.get())) {
return;
}
Log(LogInformation, "ApiListener")
<< "Our CA will expire soon, but we own it. Renewing.";
cert = RenewCert(cert, true);
if (!cert) {
return;
}
auto certStr (CertificateToString(cert));
AtomicFile::Write(GetDefaultCaPath(), 0644, certStr);
AtomicFile::Write(certPath, 0644, certStr);
UpdateSSLContext();
}
void ApiListener::Stop(bool runtimeDeleted)
{
m_ApiPackageIntegrityTimer->Stop(true);
m_CleanupCertificateRequestsTimer->Stop(true);
m_AuthorityTimer->Stop(true);
m_ReconnectTimer->Stop(true);
m_Timer->Stop(true);
m_RenewOwnCertTimer->Stop(true);
ObjectImpl<ApiListener>::Stop(runtimeDeleted);
Log(LogInformation, "ApiListener")
<< "'" << GetName() << "' stopped.";
{
std::unique_lock<std::mutex> lock(m_LogLock);
CloseLogFile();
RotateLogFile();
}
RemoveStatusFile();
}
ApiListener::Ptr ApiListener::GetInstance()
{
return m_Instance;
}
Endpoint::Ptr ApiListener::GetMaster() const
{
Zone::Ptr zone = Zone::GetLocalZone();
if (!zone)
return nullptr;
std::vector<String> names;
for (const Endpoint::Ptr& endpoint : zone->GetEndpoints())
if (endpoint->GetConnected() || endpoint->GetName() == GetIdentity())
names.push_back(endpoint->GetName());
std::sort(names.begin(), names.end());
return Endpoint::GetByName(*names.begin());
}
bool ApiListener::IsMaster() const
{
Endpoint::Ptr master = GetMaster();
if (!master)
return false;
return master == GetLocalEndpoint();
}
/**
* Creates a new JSON-RPC listener on the specified port.
*
* @param node The host the listener should be bound to.
* @param service The port to listen on.
*/
bool ApiListener::AddListener(const String& node, const String& service)
{
namespace asio = boost::asio;
namespace ip = asio::ip;
using ip::tcp;
ObjectLock olock(this);
if (!m_SSLContext) {
Log(LogCritical, "ApiListener", "SSL context is required for AddListener()");
return false;
}
auto& io (IoEngine::Get().GetIoContext());
auto acceptor (Shared<tcp::acceptor>::Make(io));
try {
tcp::resolver resolver (io);
tcp::resolver::query query (node, service, tcp::resolver::query::passive);
auto result (resolver.resolve(query));
auto current (result.begin());
for (;;) {
try {
acceptor->open(current->endpoint().protocol());
{
auto fd (acceptor->native_handle());
const int optFalse = 0;
setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<const char *>(&optFalse), sizeof(optFalse));
const int optTrue = 1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<const char *>(&optTrue), sizeof(optTrue));
#ifdef SO_REUSEPORT
setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<const char *>(&optTrue), sizeof(optTrue));
#endif /* SO_REUSEPORT */
}
acceptor->bind(current->endpoint());
break;
} catch (const std::exception&) {
if (++current == result.end()) {
throw;
}
if (acceptor->is_open()) {
acceptor->close();
}
}
}
} catch (const std::exception& ex) {
Log(LogCritical, "ApiListener")
<< "Cannot bind TCP socket for host '" << node << "' on port '" << service << "': " << ex.what();
return false;
}
acceptor->listen(INT_MAX);
auto localEndpoint (acceptor->local_endpoint());
Log(LogInformation, "ApiListener")
<< "Started new listener on '[" << localEndpoint.address() << "]:" << localEndpoint.port() << "'";
IoEngine::SpawnCoroutine(io, [this, acceptor](asio::yield_context yc) { ListenerCoroutineProc(yc, acceptor); });
UpdateStatusFile(localEndpoint);
return true;
}
void ApiListener::ListenerCoroutineProc(boost::asio::yield_context yc, const Shared<boost::asio::ip::tcp::acceptor>::Ptr& server)
{
namespace asio = boost::asio;
auto& io (IoEngine::Get().GetIoContext());
time_t lastModified = -1;
const String crlPath = GetCrlPath();
if (!crlPath.IsEmpty()) {
lastModified = Utility::GetFileCreationTime(crlPath);
}
for (;;) {
try {
asio::ip::tcp::socket socket (io);
server->async_accept(socket.lowest_layer(), yc);
if (!crlPath.IsEmpty()) {
time_t currentCreationTime = Utility::GetFileCreationTime(crlPath);
if (lastModified != currentCreationTime) {
UpdateSSLContext();
lastModified = currentCreationTime;
}
}
boost::shared_lock<decltype(m_SSLContextMutex)> lock (m_SSLContextMutex);
auto sslConn (Shared<AsioTlsStream>::Make(io, *m_SSLContext));
lock.unlock();
sslConn->lowest_layer() = std::move(socket);
auto strand (Shared<asio::io_context::strand>::Make(io));
IoEngine::SpawnCoroutine(*strand, [this, strand, sslConn](asio::yield_context yc) {
Timeout::Ptr timeout(new Timeout(strand->context(), *strand, boost::posix_time::microseconds(int64_t(GetConnectTimeout() * 1e6)),
[sslConn](asio::yield_context yc) {
Log(LogWarning, "ApiListener")
<< "Timeout while processing incoming connection from "
<< sslConn->lowest_layer().remote_endpoint();
boost::system::error_code ec;
sslConn->lowest_layer().cancel(ec);
}
));
Defer cancelTimeout([timeout]() { timeout->Cancel(); });
NewClientHandler(yc, strand, sslConn, String(), RoleServer);
});
} catch (const std::exception& ex) {
Log(LogCritical, "ApiListener")
<< "Cannot accept new connection: " << ex.what();
}
}
}
/**
* Creates a new JSON-RPC client and connects to the specified endpoint.
*
* @param endpoint The endpoint.
*/
void ApiListener::AddConnection(const Endpoint::Ptr& endpoint)
{
namespace asio = boost::asio;
using asio::ip::tcp;
if (!m_SSLContext) {
Log(LogCritical, "ApiListener", "SSL context is required for AddConnection()");
return;
}
auto& io (IoEngine::Get().GetIoContext());
auto strand (Shared<asio::io_context::strand>::Make(io));
IoEngine::SpawnCoroutine(*strand, [this, strand, endpoint, &io](asio::yield_context yc) {
String host = endpoint->GetHost();
String port = endpoint->GetPort();
Log(LogInformation, "ApiListener")
<< "Reconnecting to endpoint '" << endpoint->GetName() << "' via host '" << host << "' and port '" << port << "'";
try {
boost::shared_lock<decltype(m_SSLContextMutex)> lock (m_SSLContextMutex);
auto sslConn (Shared<AsioTlsStream>::Make(io, *m_SSLContext, endpoint->GetName()));
lock.unlock();
Timeout::Ptr timeout(new Timeout(strand->context(), *strand, boost::posix_time::microseconds(int64_t(GetConnectTimeout() * 1e6)),
[sslConn, endpoint, host, port](asio::yield_context yc) {
Log(LogCritical, "ApiListener")
<< "Timeout while reconnecting to endpoint '" << endpoint->GetName() << "' via host '" << host
<< "' and port '" << port << "', cancelling attempt";
boost::system::error_code ec;
sslConn->lowest_layer().cancel(ec);
}
));
Defer cancelTimeout([&timeout]() { timeout->Cancel(); });
Connect(sslConn->lowest_layer(), host, port, yc);
NewClientHandler(yc, strand, sslConn, endpoint->GetName(), RoleClient);
endpoint->SetConnecting(false);
Log(LogInformation, "ApiListener")
<< "Finished reconnecting to endpoint '" << endpoint->GetName() << "' via host '" << host << "' and port '" << port << "'";
} catch (const std::exception& ex) {
endpoint->SetConnecting(false);
Log(LogCritical, "ApiListener")
<< "Cannot connect to host '" << host << "' on port '" << port << "': " << ex.what();
}
});
}
void ApiListener::NewClientHandler(
boost::asio::yield_context yc, const Shared<boost::asio::io_context::strand>::Ptr& strand,
const Shared<AsioTlsStream>::Ptr& client, const String& hostname, ConnectionRole role
)
{
try {
NewClientHandlerInternal(yc, strand, client, hostname, role);
} catch (const std::exception& ex) {
Log(LogCritical, "ApiListener")
<< "Exception while handling new API client connection: " << DiagnosticInformation(ex, false);
Log(LogDebug, "ApiListener")
<< "Exception while handling new API client connection: " << DiagnosticInformation(ex);
}
}
static const auto l_AppVersionInt (([]() -> unsigned long {
auto appVersion (Application::GetAppVersion());
boost::regex rgx (R"EOF(^[rv]?(\d+)\.(\d+)\.(\d+))EOF");
boost::smatch match;
if (!boost::regex_search(appVersion.GetData(), match, rgx)) {
return 0;
}
return 100u * 100u * boost::lexical_cast<unsigned long>(match[1].str())
+ 100u * boost::lexical_cast<unsigned long>(match[2].str())
+ boost::lexical_cast<unsigned long>(match[3].str());
})());
static const auto l_MyCapabilities (
(uint_fast64_t)ApiCapabilities::ExecuteArbitraryCommand | (uint_fast64_t)ApiCapabilities::IfwApiCheckCommand
);
/**
* Processes a new client connection.
*
* @param client The new client.
*/
void ApiListener::NewClientHandlerInternal(
boost::asio::yield_context yc, const Shared<boost::asio::io_context::strand>::Ptr& strand,
const Shared<AsioTlsStream>::Ptr& client, const String& hostname, ConnectionRole role
)
{
namespace asio = boost::asio;
namespace ssl = asio::ssl;
String conninfo;
{
std::ostringstream conninfo_;
if (role == RoleClient) {
conninfo_ << "to";
} else {
conninfo_ << "from";
}
auto endpoint (client->lowest_layer().remote_endpoint());
conninfo_ << " [" << endpoint.address() << "]:" << endpoint.port();
conninfo = conninfo_.str();
}
auto& sslConn (client->next_layer());
boost::system::error_code ec;
{
Timeout::Ptr handshakeTimeout (new Timeout(
strand->context(),
*strand,
boost::posix_time::microseconds(intmax_t(Configuration::TlsHandshakeTimeout * 1000000)),
[strand, client](asio::yield_context yc) {
boost::system::error_code ec;
client->lowest_layer().cancel(ec);
}
));
sslConn.async_handshake(role == RoleClient ? sslConn.client : sslConn.server, yc[ec]);
handshakeTimeout->Cancel();
}
if (ec) {
// https://github.com/boostorg/beast/issues/915
// Google Chrome 73+ seems not close the connection properly, https://stackoverflow.com/questions/56272906/how-to-fix-certificate-unknown-error-from-chrome-v73
if (ec == asio::ssl::error::stream_truncated) {
Log(LogNotice, "ApiListener")
<< "TLS stream was truncated, ignoring connection from " << conninfo;
return;
}
Log(LogCritical, "ApiListener")
<< "Client TLS handshake failed (" << conninfo << "): " << ec.message();
return;
}
bool willBeShutDown = false;
Defer shutDownIfNeeded ([&sslConn, &willBeShutDown, &yc]() {
if (!willBeShutDown) {
// Ignore the error, but do not throw an exception being swallowed at all cost.
// https://github.com/Icinga/icinga2/issues/7351
boost::system::error_code ec;
sslConn.async_shutdown(yc[ec]);
}
});
std::shared_ptr<X509> cert (sslConn.GetPeerCertificate());
bool verify_ok = false;
String identity;
Endpoint::Ptr endpoint;
if (cert) {
verify_ok = sslConn.IsVerifyOK();
String verifyError = sslConn.GetVerifyError();
try {
identity = GetCertificateCN(cert);
} catch (const std::exception&) {
Log(LogCritical, "ApiListener")
<< "Cannot get certificate common name from peer (" << conninfo << ") cert.";
return;
}
if (!hostname.IsEmpty()) {
if (identity != hostname) {
Log(LogWarning, "ApiListener")
<< "Unexpected certificate common name while connecting to endpoint '"
<< hostname << "': got '" << identity << "'";
return;
} else if (!verify_ok) {
Log(LogWarning, "ApiListener")
<< "Certificate validation failed for endpoint '" << hostname
<< "': " << verifyError;
}
}
if (verify_ok) {
endpoint = Endpoint::GetByName(identity);
}
Log log(LogInformation, "ApiListener");
log << "New client connection for identity '" << identity << "' " << conninfo;
if (!verify_ok) {
log << " (certificate validation failed: " << verifyError << ")";
} else if (!endpoint) {
log << " (no Endpoint object found for identity)";
}
} else {
Log(LogInformation, "ApiListener")
<< "New client connection " << conninfo << " (no client certificate)";
}
ClientType ctype;
try {
if (role == RoleClient) {
JsonRpc::SendMessage(client, new Dictionary({
{ "jsonrpc", "2.0" },
{ "method", "icinga::Hello" },
{ "params", new Dictionary({
{ "version", (double)l_AppVersionInt },
{ "capabilities", (double)l_MyCapabilities }
}) }
}), yc);
client->async_flush(yc);
ctype = ClientJsonRpc;
} else {
{
boost::system::error_code ec;
if (client->async_fill(yc[ec]) == 0u) {
if (identity.IsEmpty()) {
Log(LogInformation, "ApiListener")
<< "No data received on new API connection " << conninfo << ". "
<< "Ensure that the remote endpoints are properly configured in a cluster setup.";
} else {
Log(LogWarning, "ApiListener")
<< "No data received on new API connection " << conninfo << " for identity '" << identity << "'. "
<< "Ensure that the remote endpoints are properly configured in a cluster setup.";
}
return;
}
}
char firstByte = 0;
{
asio::mutable_buffer firstByteBuf (&firstByte, 1);
client->peek(firstByteBuf);
}
if (firstByte >= '0' && firstByte <= '9') {
JsonRpc::SendMessage(client, new Dictionary({
{ "jsonrpc", "2.0" },
{ "method", "icinga::Hello" },
{ "params", new Dictionary({
{ "version", (double)l_AppVersionInt },
{ "capabilities", (double)l_MyCapabilities }
}) }
}), yc);
client->async_flush(yc);
ctype = ClientJsonRpc;
} else {
ctype = ClientHttp;
}
}
} catch (const boost::system::system_error& systemError) {
if (systemError.code() == boost::asio::error::operation_aborted) {
shutDownIfNeeded.Cancel();
}
throw;
}
if (ctype == ClientJsonRpc) {
Log(LogNotice, "ApiListener", "New JSON-RPC client");
if (endpoint && endpoint->GetConnected()) {
Log(LogNotice, "ApiListener")
<< "Ignoring JSON-RPC connection " << conninfo
<< ". We're already connected to Endpoint '" << endpoint->GetName() << "'.";
return;
}
JsonRpcConnection::Ptr aclient = new JsonRpcConnection(identity, verify_ok, client, role);
if (endpoint) {
endpoint->AddClient(aclient);
Utility::QueueAsyncCallback([this, aclient, endpoint]() {
SyncClient(aclient, endpoint, true);
});
} else if (!AddAnonymousClient(aclient)) {
Log(LogNotice, "ApiListener")
<< "Ignoring anonymous JSON-RPC connection " << conninfo
<< ". Max connections (" << GetMaxAnonymousClients() << ") exceeded.";
aclient = nullptr;
}
if (aclient) {
aclient->Start();
willBeShutDown = true;
}
} else {
Log(LogNotice, "ApiListener", "New HTTP client");
HttpServerConnection::Ptr aclient = new HttpServerConnection(identity, verify_ok, client);
AddHttpClient(aclient);
aclient->Start();
willBeShutDown = true;
}
}
void ApiListener::SyncClient(const JsonRpcConnection::Ptr& aclient, const Endpoint::Ptr& endpoint, bool needSync)
{
Zone::Ptr eZone = endpoint->GetZone();
try {
{
ObjectLock olock(endpoint);
endpoint->SetSyncing(true);
}
Zone::Ptr myZone = Zone::GetLocalZone();
auto parent (myZone->GetParent());
if (parent == eZone || (!parent && eZone == myZone)) {
JsonRpcConnection::SendCertificateRequest(aclient, nullptr, String());
if (Utility::PathExists(ApiListener::GetCertificateRequestsDir())) {
Utility::Glob(ApiListener::GetCertificateRequestsDir() + "/*.json", [aclient](const String& newPath) {
JsonRpcConnection::SendCertificateRequest(aclient, nullptr, newPath);
}, GlobFile);
}
}
/* Make sure that the config updates are synced
* before the logs are replayed.
*/
Log(LogInformation, "ApiListener")
<< "Sending config updates for endpoint '" << endpoint->GetName() << "' in zone '" << eZone->GetName() << "'.";
/* sync zone file config */
SendConfigUpdate(aclient);
Log(LogInformation, "ApiListener")
<< "Finished sending config file updates for endpoint '" << endpoint->GetName() << "' in zone '" << eZone->GetName() << "'.";
/* sync runtime config */
SendRuntimeConfigObjects(aclient);
Log(LogInformation, "ApiListener")
<< "Finished sending runtime config updates for endpoint '" << endpoint->GetName() << "' in zone '" << eZone->GetName() << "'.";
if (!needSync) {
ObjectLock olock2(endpoint);
endpoint->SetSyncing(false);
return;
}
Log(LogInformation, "ApiListener")
<< "Sending replay log for endpoint '" << endpoint->GetName() << "' in zone '" << eZone->GetName() << "'.";
ReplayLog(aclient);
if (eZone == Zone::GetLocalZone())
UpdateObjectAuthority();
Log(LogInformation, "ApiListener")
<< "Finished sending replay log for endpoint '" << endpoint->GetName() << "' in zone '" << eZone->GetName() << "'.";
} catch (const std::exception& ex) {
{
ObjectLock olock2(endpoint);
endpoint->SetSyncing(false);
}
Log(LogCritical, "ApiListener")
<< "Error while syncing endpoint '" << endpoint->GetName() << "': " << DiagnosticInformation(ex, false);
Log(LogDebug, "ApiListener")
<< "Error while syncing endpoint '" << endpoint->GetName() << "': " << DiagnosticInformation(ex);
}
Log(LogInformation, "ApiListener")
<< "Finished syncing endpoint '" << endpoint->GetName() << "' in zone '" << eZone->GetName() << "'.";
}
void ApiListener::ApiTimerHandler()
{
double now = Utility::GetTime();
std::vector<int> files;
Utility::Glob(GetApiDir() + "log/*", [&files](const String& file) { LogGlobHandler(files, file); }, GlobFile);
std::sort(files.begin(), files.end());
for (int ts : files) {
bool need = false;
auto localZone (GetLocalEndpoint()->GetZone());
for (const Endpoint::Ptr& endpoint : ConfigType::GetObjectsByType<Endpoint>()) {
if (endpoint == GetLocalEndpoint())
continue;
auto zone (endpoint->GetZone());
/* only care for endpoints in a) the same zone b) our parent zone c) immediate child zones */
if (!(zone == localZone || zone == localZone->GetParent() || zone->GetParent() == localZone)) {
continue;
}
if (endpoint->GetLogDuration() >= 0 && ts < now - endpoint->GetLogDuration())
continue;
if (ts > endpoint->GetLocalLogPosition()) {
need = true;
break;
}
}
if (!need) {
String path = GetApiDir() + "log/" + Convert::ToString(ts);
Log(LogNotice, "ApiListener")
<< "Removing old log file: " << path;
(void)unlink(path.CStr());
}
}
for (const Endpoint::Ptr& endpoint : ConfigType::GetObjectsByType<Endpoint>()) {
if (!endpoint->GetConnected())