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feat: Cache state endpoint (#2642)

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This commit is contained in:
Alex Kremer
2025-09-18 16:20:17 +01:00
committed by GitHub
parent 586a2116a4
commit 245a808e4b
9 changed files with 221 additions and 25 deletions
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27
src/web/impl/HttpBase.hpp
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@@ -19,6 +19,7 @@
#pragma once
#include "data/LedgerCacheInterface.hpp"
#include "rpc/Errors.hpp"
#include "util/Assert.hpp"
#include "util/Taggable.hpp"
@@ -71,6 +72,22 @@ static constexpr auto kHEALTH_CHECK_HTML = R"html(
</html>
)html";
static constexpr auto kCACHE_CHECK_LOADED_HTML = R"html(
<!DOCTYPE html>
<html>
<head><title>Cache state</title></head>
<body><h1>Cache state</h1><p>Cache is fully loaded</p></body>
</html>
)html";
static constexpr auto kCACHE_CHECK_NOT_LOADED_HTML = R"html(
<!DOCTYPE html>
<html>
<head><title>Cache state</title></head>
<body><h1>Cache state</h1><p>Cache is not yet loaded</p></body>
</html>
)html";
using tcp = boost::asio::ip::tcp;
/**
@@ -128,6 +145,7 @@ protected:
http::request<http::string_body> req_;
std::reference_wrapper<dosguard::DOSGuardInterface> dosGuard_;
std::shared_ptr<HandlerType> const handler_;
std::reference_wrapper<data::LedgerCacheInterface const> cache_;
util::Logger log_{"WebServer"};
util::Logger perfLog_{"Performance"};
@@ -169,6 +187,7 @@ public:
std::shared_ptr<ProxyIpResolver> proxyIpResolver,
std::reference_wrapper<dosguard::DOSGuardInterface> dosGuard,
std::shared_ptr<HandlerType> handler,
std::reference_wrapper<data::LedgerCacheInterface const> cache,
boost::beast::flat_buffer buffer
)
: ConnectionBase(tagFactory, ip)
@@ -178,6 +197,7 @@ public:
, buffer_(std::move(buffer))
, dosGuard_(dosGuard)
, handler_(std::move(handler))
, cache_(cache)
{
LOG(perfLog_.debug()) << tag() << "http session created";
dosGuard_.get().increment(ip);
@@ -222,6 +242,13 @@ public:
if (req_.method() == http::verb::get and req_.target() == "/health")
return sender_(httpResponse(http::status::ok, "text/html", kHEALTH_CHECK_HTML));
if (req_.method() == http::verb::get and req_.target() == "/cache_state") {
if (cache_.get().isFull())
return sender_(httpResponse(http::status::ok, "text/html", kCACHE_CHECK_LOADED_HTML));
return sender_(httpResponse(http::status::service_unavailable, "text/html", kCACHE_CHECK_NOT_LOADED_HTML));
}
if (auto resolvedIp = proxyIpResolver_->resolveClientIp(clientIp_, req_); resolvedIp != clientIp_) {
LOG(log_.info()) << tag() << "Detected a forwarded request from proxy. Proxy ip: " << clientIp_
<< ". Resolved client ip: " << resolvedIp;