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/**
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you 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.
*/
#include <iostream>
#include <string_view>
#include "tscpp/api/GlobalPlugin.h"
#include "tscpp/api/TransactionPlugin.h"
#include "tscpp/api/TransformationPlugin.h"
#include "tscpp/api/PluginInit.h"
#include "tscpp/api/Logger.h"
using namespace atscppapi;
namespace
{
#define TAG "null_transformation"
GlobalPlugin *plugin;
} // namespace
class NullTransformationPlugin : public TransformationPlugin
{
public:
NullTransformationPlugin(Transaction &transaction, TransformationPlugin::Type xformType)
: TransformationPlugin(transaction, xformType)
{
registerHook((xformType == TransformationPlugin::REQUEST_TRANSFORMATION) ? HOOK_SEND_REQUEST_HEADERS :
HOOK_SEND_RESPONSE_HEADERS);
}
void
handleSendRequestHeaders(Transaction &transaction) override
{
transaction.getServerRequest().getHeaders()["X-Content-Transformed"] = "1";
transaction.resume();
}
void
handleSendResponseHeaders(Transaction &transaction) override
{
transaction.getClientResponse().getHeaders()["X-Content-Transformed"] = "1";
transaction.resume();
}
void
consume(std::string_view data) override
{
produce(data);
}
void
handleInputComplete() override
{
setOutputComplete();
}
~NullTransformationPlugin() override {}
private:
};
class GlobalHookPlugin : public GlobalPlugin
{
public:
GlobalHookPlugin()
{
registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
registerHook(HOOK_READ_RESPONSE_HEADERS);
}
void
handleReadRequestHeadersPostRemap(Transaction &transaction) override
{
transaction.addPlugin(new NullTransformationPlugin(transaction, TransformationPlugin::REQUEST_TRANSFORMATION));
transaction.resume();
}
void
handleReadResponseHeaders(Transaction &transaction) override
{
transaction.addPlugin(new NullTransformationPlugin(transaction, TransformationPlugin::RESPONSE_TRANSFORMATION));
transaction.resume();
}
};
void
TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED)
{
if (!RegisterGlobalPlugin("CPP_Example_NullTransformation", "apache", "dev@trafficserver.apache.org")) {
return;
}
TS_DEBUG(TAG, "TSPluginInit");
plugin = new GlobalHookPlugin();
}
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