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-rw-r--r--meta-openbmc-mods/meta-common/recipes-phosphor/interfaces/bmcweb/http_routing/0001-Add-asyncResp-support-during-handleUpgrade.patch202
1 files changed, 202 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-phosphor/interfaces/bmcweb/http_routing/0001-Add-asyncResp-support-during-handleUpgrade.patch b/meta-openbmc-mods/meta-common/recipes-phosphor/interfaces/bmcweb/http_routing/0001-Add-asyncResp-support-during-handleUpgrade.patch
new file mode 100644
index 000000000..b3aa11774
--- /dev/null
+++ b/meta-openbmc-mods/meta-common/recipes-phosphor/interfaces/bmcweb/http_routing/0001-Add-asyncResp-support-during-handleUpgrade.patch
@@ -0,0 +1,202 @@
+From f2c3271c8eb405a05a3ec383791e1adc3c4a7f86 Mon Sep 17 00:00:00 2001
+From: P Dheeraj Srujan Kumar <p.dheeraj.srujan.kumar@intel.com>
+Date: Mon, 18 Oct 2021 22:45:37 +0530
+Subject: [PATCH] Add asyncResp support during handleUpgrade
+
+The current implementation uses the earlier method of using the response
+object and calling response.end() to initiate completion handler.
+This commit modifies the implementation to use asyncResp, where the
+completion handler gets called asynchronously as the response object
+goes out of scope.
+
+Tested :
+ - websocket_test.py Passed
+ - KVM was functional in WebUI.
+ - POST to /redfish/v1/EventService/Subscriptions/SSE returned an error
+ message as expected and the connection was kept alive.
+ - GET on /redfish/v1/EventService/Subscriptions/SSE (SSE subscription)
+ was successful. The existing connection was successfully closed and
+ upgraded to SSE connection.
+
+Change-Id: I2d76b34a49a6432c507d939b21b37c1ced761f8e
+Signed-off-by: P Dheeraj Srujan Kumar <p.dheeraj.srujan.kumar@intel.com>
+---
+ http/app.hpp | 6 ++++--
+ http/http_connection.hpp | 30 +++++++++++++++++++++++++-----
+ http/routing.hpp | 37 +++++++++++++++++++++----------------
+ 3 files changed, 50 insertions(+), 23 deletions(-)
+
+diff --git a/http/app.hpp b/http/app.hpp
+index 4735197..c46dcf7 100644
+--- a/http/app.hpp
++++ b/http/app.hpp
+@@ -45,9 +45,11 @@ class App
+ }
+
+ template <typename Adaptor>
+- void handleUpgrade(const Request& req, Response& res, Adaptor&& adaptor)
++ void handleUpgrade(const Request& req,
++ const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
++ Adaptor&& adaptor)
+ {
+- router.handleUpgrade(req, res, std::move(adaptor));
++ router.handleUpgrade(req, asyncResp, std::move(adaptor));
+ }
+
+ void handle(Request& req,
+diff --git a/http/http_connection.hpp b/http/http_connection.hpp
+index 9d53c17..cdd3707 100644
+--- a/http/http_connection.hpp
++++ b/http/http_connection.hpp
+@@ -361,6 +361,7 @@ class Connection :
+ boost::asio::post(self->adaptor.get_executor(),
+ [self] { self->completeRequest(); });
+ });
++ auto asyncResp = std::make_shared<bmcweb::AsyncResp>(res);
+
+ if ((thisReq.isUpgrade() &&
+ boost::iequals(
+@@ -369,13 +370,32 @@ class Connection :
+ (req->url == "/redfish/v1/EventService/Subscriptions/SSE"))
+ {
+ BMCWEB_LOG_DEBUG << "Request: " << this << " is getting upgraded";
+- handler->handleUpgrade(thisReq, res, std::move(adaptor));
+- // delete lambda with self shared_ptr
+- // to enable connection destruction
+- res.setCompleteRequestHandler(nullptr);
++ res.setCompleteRequestHandler([self(shared_from_this())] {
++ if (self->res.resultInt() != 200)
++ {
++ // When any error occurs during handle upgradation,
++ // the result in response will be set to respective
++ // error. By default the Result will be OK (200),
++ // which implies successful handle upgrade. Response
++ // needs to be sent over this connection only on
++ // failure.
++ boost::asio::post(self->adaptor.get_executor(),
++ [self] { self->completeRequest(); });
++ }
++ else
++ {
++ // Set Complete request handler to NULL to remove
++ // the shared pointer of connection to enable
++ // connection destruction. As the connection would
++ // get upgraded, we wouldn't need this connection
++ // any longer
++ self->res.setCompleteRequestHandler(nullptr);
++ }
++ });
++ handler->handleUpgrade(thisReq, asyncResp, std::move(adaptor));
+ return;
+ }
+- auto asyncResp = std::make_shared<bmcweb::AsyncResp>(res);
++
+ handler->handle(thisReq, asyncResp);
+ }
+
+diff --git a/http/routing.hpp b/http/routing.hpp
+index 25e4ce8..858f146 100644
+--- a/http/routing.hpp
++++ b/http/routing.hpp
+@@ -1202,12 +1202,13 @@ class Router
+ }
+
+ template <typename Adaptor>
+- void handleUpgrade(const Request& req, Response& res, Adaptor&& adaptor)
++ void handleUpgrade(const Request& req,
++ const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
++ Adaptor&& adaptor)
+ {
+ if (static_cast<size_t>(req.method()) >= perMethods.size())
+ {
+- res.result(boost::beast::http::status::not_found);
+- res.end();
++ asyncResp->res.result(boost::beast::http::status::not_found);
+ return;
+ }
+
+@@ -1220,8 +1221,7 @@ class Router
+ if (!ruleIndex)
+ {
+ BMCWEB_LOG_DEBUG << "Cannot match rules " << req.url;
+- res.result(boost::beast::http::status::not_found);
+- res.end();
++ asyncResp->res.result(boost::beast::http::status::not_found);
+ return;
+ }
+
+@@ -1234,23 +1234,24 @@ class Router
+ {
+ BMCWEB_LOG_INFO << "Redirecting to a url with trailing slash: "
+ << req.url;
+- res.result(boost::beast::http::status::moved_permanently);
++ asyncResp->res.result(
++ boost::beast::http::status::moved_permanently);
+
+ // TODO absolute url building
+ if (req.getHeaderValue("Host").empty())
+ {
+- res.addHeader("Location", std::string(req.url) + "/");
++ asyncResp->res.addHeader("Location",
++ std::string(req.url) + "/");
+ }
+ else
+ {
+- res.addHeader(
++ asyncResp->res.addHeader(
+ "Location",
+ req.isSecure
+ ? "https://"
+ : "http://" + std::string(req.getHeaderValue("Host")) +
+ std::string(req.url) + "/");
+ }
+- res.end();
+ return;
+ }
+
+@@ -1261,8 +1262,7 @@ class Router
+ << " with " << req.methodString() << "("
+ << static_cast<uint32_t>(req.method()) << ") / "
+ << rules[ruleIndex]->getMethods();
+- res.result(boost::beast::http::status::not_found);
+- res.end();
++ asyncResp->res.result(boost::beast::http::status::not_found);
+ return;
+ }
+
+@@ -1273,13 +1273,18 @@ class Router
+ // any uncaught exceptions become 500s
+ try
+ {
+- rules[ruleIndex]->handleUpgrade(req, res, std::move(adaptor));
++ // Creating temporary response object to call handleUpgrade
++ // We cannot pass the asyncResp as it will be destroyed
++ // The response object is not initialized as handleUpgrade wouldn't
++ // be using this object
++ crow::Response resp;
++ rules[ruleIndex]->handleUpgrade(req, resp, std::move(adaptor));
+ }
+ catch (std::exception& e)
+ {
+ BMCWEB_LOG_ERROR << "An uncaught exception occurred: " << e.what();
+- res.result(boost::beast::http::status::internal_server_error);
+- res.end();
++ asyncResp->res.result(
++ boost::beast::http::status::internal_server_error);
+ return;
+ }
+ catch (...)
+@@ -1287,8 +1292,8 @@ class Router
+ BMCWEB_LOG_ERROR
+ << "An uncaught exception occurred. The type was unknown "
+ "so no information was available.";
+- res.result(boost::beast::http::status::internal_server_error);
+- res.end();
++ asyncResp->res.result(
++ boost::beast::http::status::internal_server_error);
+ return;
+ }
+ }
+--
+2.17.1
+