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/*
// Copyright (c) 2019 Intel Corporation
//
// 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.
*/
#pragma once
#include "async_resp.hpp"
#include <boost/algorithm/string/predicate.hpp>
#include <boost/container/flat_set.hpp>
#include <dbus_singleton.hpp>
#include <variant>
namespace redfish
{
struct HealthPopulate : std::enable_shared_from_this<HealthPopulate>
{
HealthPopulate(const std::shared_ptr<AsyncResp> &asyncResp) :
asyncResp(asyncResp), jsonStatus(asyncResp->res.jsonValue["Status"])
{
}
HealthPopulate(const std::shared_ptr<AsyncResp> &asyncResp,
nlohmann::json &status) :
asyncResp(asyncResp),
jsonStatus(status)
{
}
~HealthPopulate()
{
nlohmann::json &health = jsonStatus["Health"];
nlohmann::json &rollup = jsonStatus["HealthRollup"];
health = "OK";
rollup = "OK";
for (const std::shared_ptr<HealthPopulate> &health : children)
{
health->globalInventoryPath = globalInventoryPath;
health->statuses = statuses;
}
for (const auto &[path, interfaces] : statuses)
{
bool isChild = false;
bool isSelf =
selfPath ? boost::starts_with(path.str, *selfPath) : false;
// managers inventory is all the inventory, don't skip any
if (!isManagersHealth && !isSelf)
{
// We only want to look at this association if either the path
// of this association is an inventory item, or one of the
// endpoints in this association is a child
for (const std::string &child : inventory)
{
if (boost::starts_with(path.str, child))
{
isChild = true;
break;
}
}
if (!isChild)
{
auto assocIt =
interfaces.find("xyz.openbmc_project.Association");
if (assocIt == interfaces.end())
{
continue;
}
auto endpointsIt = assocIt->second.find("endpoints");
if (endpointsIt == assocIt->second.end())
{
BMCWEB_LOG_ERROR << "Illegal association at "
<< path.str;
continue;
}
const std::vector<std::string> *endpoints =
std::get_if<std::vector<std::string>>(
&endpointsIt->second);
if (endpoints == nullptr)
{
BMCWEB_LOG_ERROR << "Illegal association at "
<< path.str;
continue;
}
bool containsChild = false;
for (const std::string &endpoint : *endpoints)
{
if (std::find(inventory.begin(), inventory.end(),
endpoint) != inventory.end())
{
containsChild = true;
break;
}
}
if (!containsChild)
{
continue;
}
}
}
if (boost::starts_with(path.str, globalInventoryPath) &&
boost::ends_with(path.str, "critical"))
{
health = "Critical";
rollup = "Critical";
return;
}
else if (boost::starts_with(path.str, globalInventoryPath) &&
boost::ends_with(path.str, "warning"))
{
health = "Warning";
if (rollup != "Critical")
{
rollup = "Warning";
}
}
else if (boost::ends_with(path.str, "critical"))
{
rollup = "Critical";
if (isSelf)
{
health = "Critical";
return;
}
}
else if (boost::ends_with(path.str, "warning"))
{
if (rollup != "Critical")
{
rollup = "Warning";
}
if (isSelf)
{
health = "Warning";
}
}
}
}
// this should only be called once per url, others should get updated by
// being added as children to the 'main' health object for the page
void populate()
{
if (populated)
{
return;
}
populated = true;
getAllStatusAssociations();
getGlobalPath();
}
void getGlobalPath()
{
std::shared_ptr<HealthPopulate> self = shared_from_this();
crow::connections::systemBus->async_method_call(
[self](const boost::system::error_code ec,
std::vector<std::string> &resp) {
if (ec || resp.size() != 1)
{
// no global item, or too many
return;
}
self->globalInventoryPath = std::move(resp[0]);
},
"xyz.openbmc_project.ObjectMapper",
"/xyz/openbmc_project/object_mapper",
"xyz.openbmc_project.ObjectMapper", "GetSubTreePaths", "/", 0,
std::array<const char *, 1>{
"xyz.openbmc_project.Inventory.Item.Global"});
}
void getAllStatusAssociations()
{
std::shared_ptr<HealthPopulate> self = shared_from_this();
crow::connections::systemBus->async_method_call(
[self](const boost::system::error_code ec,
dbus::utility::ManagedObjectType &resp) {
if (ec)
{
return;
}
for (auto it = resp.begin(); it != resp.end();)
{
if (boost::ends_with(it->first.str, "critical") ||
boost::ends_with(it->first.str, "warning"))
{
it++;
continue;
}
it = resp.erase(it);
}
self->statuses = std::move(resp);
},
"xyz.openbmc_project.ObjectMapper", "/",
"org.freedesktop.DBus.ObjectManager", "GetManagedObjects");
}
std::shared_ptr<AsyncResp> asyncResp;
nlohmann::json &jsonStatus;
// we store pointers to other HealthPopulate items so we can update their
// members and reduce dbus calls. As we hold a shared_ptr to them, they get
// destroyed last, and they need not call populate()
std::vector<std::shared_ptr<HealthPopulate>> children;
// self is used if health is for an individual items status, as this is the
// 'lowest most' item, the rollup will equal the health
std::optional<std::string> selfPath;
std::vector<std::string> inventory;
bool isManagersHealth = false;
dbus::utility::ManagedObjectType statuses;
std::string globalInventoryPath = "-"; // default to illegal dbus path
bool populated = false;
};
} // namespace redfish
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