mirror of
https://github.com/Icinga/icinga2.git
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138 lines
3.6 KiB
C++
138 lines
3.6 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#include "remote/eventshandler.hpp"
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#include "remote/httputility.hpp"
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#include "remote/filterutility.hpp"
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#include "config/configcompiler.hpp"
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#include "config/expression.hpp"
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#include "base/defer.hpp"
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#include "base/io-engine.hpp"
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#include "base/objectlock.hpp"
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#include "base/json.hpp"
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#include <boost/asio/buffer.hpp>
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#include <boost/asio/write.hpp>
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#include <boost/algorithm/string/replace.hpp>
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#include <map>
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#include <set>
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using namespace icinga;
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REGISTER_URLHANDLER("/v1/events", EventsHandler);
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const std::map<String, EventType> l_EventTypes ({
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{"AcknowledgementCleared", EventType::AcknowledgementCleared},
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{"AcknowledgementSet", EventType::AcknowledgementSet},
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{"CheckResult", EventType::CheckResult},
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{"CommentAdded", EventType::CommentAdded},
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{"CommentRemoved", EventType::CommentRemoved},
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{"DowntimeAdded", EventType::DowntimeAdded},
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{"DowntimeRemoved", EventType::DowntimeRemoved},
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{"DowntimeStarted", EventType::DowntimeStarted},
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{"DowntimeTriggered", EventType::DowntimeTriggered},
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{"Flapping", EventType::Flapping},
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{"Notification", EventType::Notification},
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{"StateChange", EventType::StateChange},
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{"ObjectCreated", EventType::ObjectCreated},
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{"ObjectDeleted", EventType::ObjectDeleted},
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{"ObjectModified", EventType::ObjectModified}
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});
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const String l_ApiQuery ("<API query>");
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bool EventsHandler::HandleRequest(
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AsioTlsStream& stream,
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const ApiUser::Ptr& user,
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boost::beast::http::request<boost::beast::http::string_body>& request,
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const Url::Ptr& url,
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boost::beast::http::response<boost::beast::http::string_body>& response,
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const Dictionary::Ptr& params,
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boost::asio::yield_context& yc,
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HttpServerConnection& server
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)
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{
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namespace asio = boost::asio;
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namespace http = boost::beast::http;
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if (url->GetPath().size() != 2)
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return false;
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if (request.method() != http::verb::post)
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return false;
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if (request.version() == 10) {
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HttpUtility::SendJsonError(response, params, 400, "HTTP/1.0 not supported for event streams.");
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return true;
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}
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Array::Ptr types = params->Get("types");
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if (!types) {
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HttpUtility::SendJsonError(response, params, 400, "'types' query parameter is required.");
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return true;
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}
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{
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ObjectLock olock(types);
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for (const String& type : types) {
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FilterUtility::CheckPermission(user, "events/" + type);
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}
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}
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String queueName = HttpUtility::GetLastParameter(params, "queue");
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if (queueName.IsEmpty()) {
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HttpUtility::SendJsonError(response, params, 400, "'queue' query parameter is required.");
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return true;
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}
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std::set<EventType> eventTypes;
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{
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ObjectLock olock(types);
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for (const String& type : types) {
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auto typeId (l_EventTypes.find(type));
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if (typeId != l_EventTypes.end()) {
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eventTypes.emplace(typeId->second);
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}
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}
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}
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EventsSubscriber subscriber (std::move(eventTypes), HttpUtility::GetLastParameter(params, "filter"), l_ApiQuery);
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server.StartStreaming();
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response.result(http::status::ok);
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response.set(http::field::content_type, "application/json");
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IoBoundWorkSlot dontLockTheIoThread (yc);
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http::async_write(stream, response, yc);
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stream.async_flush(yc);
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asio::const_buffer newLine ("\n", 1);
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for (;;) {
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auto event (subscriber.GetInbox()->Shift(yc));
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if (event) {
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CpuBoundWork buildingResponse (yc);
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String body = JsonEncode(event);
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boost::algorithm::replace_all(body, "\n", "");
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asio::const_buffer payload (body.CStr(), body.GetLength());
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buildingResponse.Done();
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asio::async_write(stream, payload, yc);
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asio::async_write(stream, newLine, yc);
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stream.async_flush(yc);
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} else if (server.Disconnected()) {
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return true;
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}
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}
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}
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