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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/about_ui/credit_utils.h"
#include <stdint.h>
#include "base/strings/string_piece.h"
#include "components/grit/components_resources.h"
#include "third_party/brotli/include/brotli/decode.h"
#include "ui/base/resource/resource_bundle.h"
#if defined(OS_ANDROID)
#include "base/android/jni_array.h"
#include "jni/CreditUtils_jni.h"
#endif
namespace about_ui {
std::string GetCredits(bool include_scripts) {
std::string response;
base::StringPiece raw_response =
ui::ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_ABOUT_UI_CREDITS_HTML);
const uint8_t* next_encoded_byte =
reinterpret_cast<const uint8_t*>(raw_response.data());
size_t input_size_remaining = raw_response.size();
BrotliDecoderState* decoder = BrotliDecoderCreateInstance(
nullptr /* no custom allocator */, nullptr /* no custom deallocator */,
nullptr /* no custom memory handle */);
CHECK(!!decoder);
while (!BrotliDecoderIsFinished(decoder)) {
size_t output_size_remaining = 0;
CHECK(BrotliDecoderDecompressStream(
decoder, &input_size_remaining, &next_encoded_byte,
&output_size_remaining, nullptr,
nullptr) != BROTLI_DECODER_RESULT_ERROR);
const uint8_t* output_buffer =
BrotliDecoderTakeOutput(decoder, &output_size_remaining);
response.insert(response.end(), output_buffer,
output_buffer + output_size_remaining);
}
BrotliDecoderDestroyInstance(decoder);
if (include_scripts) {
response +=
"\n<script src=\"chrome://resources/js/cr.js\"></script>\n"
"<script src=\"chrome://credits/credits.js\"></script>\n";
}
response += "</body>\n</html>";
return response;
}
#if defined(OS_ANDROID)
static base::android::ScopedJavaLocalRef<jbyteArray>
JNI_CreditUtils_GetJavaWrapperCredits(
JNIEnv* env,
const base::android::JavaParamRef<jclass>& clazz) {
std::string html_content = GetCredits(false);
const char* html_content_arr = html_content.c_str();
return base::android::ToJavaByteArray(
env, reinterpret_cast<const uint8_t*>(html_content_arr),
html_content.size());
}
#endif
} // namespace about_ui
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