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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "PluginMetricsReporting"
#include <media/PluginMetricsReporting.h>
#include <inttypes.h>
#include <media/MediaMetrics.h>
#include <utils/Log.h>
namespace android {
namespace {
constexpr char kSerializedMetricsField[] = "serialized_metrics";
status_t reportVendorMetrics(const std::string& metrics,
const String8& name,
uid_t appUid) {
mediametrics_handle_t analyticsItem(mediametrics_create(name.c_str()));
mediametrics_setUid(analyticsItem, appUid);
if (metrics.size() > 0) {
mediametrics_setCString(analyticsItem, kSerializedMetricsField, metrics.c_str());
}
if (!mediametrics_selfRecord(analyticsItem)) {
ALOGE("%s: selfrecord() returned false", __func__);
}
mediametrics_delete(analyticsItem);
return OK;
}
String8 sanitize(const String8& input) {
// Filters the input string down to just alphanumeric characters.
String8 output;
for (size_t i = 0; i < input.size(); ++i) {
char candidate = input[i];
if ((candidate >= 'a' && candidate <= 'z') ||
(candidate >= 'A' && candidate <= 'Z') ||
(candidate >= '0' && candidate <= '9')) {
output.append(&candidate, 1);
}
}
return output;
}
} // namespace
status_t reportDrmPluginMetrics(const std::string& b64EncodedMetrics,
const String8& vendor,
const String8& description,
uid_t appUid) {
String8 name = String8::format("drm.vendor.%s.%s",
sanitize(vendor).c_str(),
sanitize(description).c_str());
return reportVendorMetrics(b64EncodedMetrics, name, appUid);
}
} // namespace android