1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 //#define LOG_NDEBUG 0 18 #define LOG_TAG "PluginMetricsReporting" 19 20 #include <media/PluginMetricsReporting.h> 21 22 #include <inttypes.h> 23 24 #include <media/MediaAnalyticsItem.h> 25 #include <utils/Log.h> 26 27 28 namespace android { 29 30 namespace { 31 32 constexpr char kSerializedMetricsField[] = "serialized_metrics"; 33 34 status_t reportVendorMetrics(const std::string& metrics, 35 const String8& name, 36 const String8& appPackageName) { 37 std::unique_ptr<MediaAnalyticsItem> analyticsItem(MediaAnalyticsItem::create(name.c_str())); 38 analyticsItem->generateSessionID(); 39 40 std::string app_package_name(appPackageName.c_str(), appPackageName.size()); 41 analyticsItem->setPkgName(app_package_name); 42 if (metrics.size() > 0) { 43 analyticsItem->setCString(kSerializedMetricsField, metrics.c_str()); 44 } 45 46 if (!analyticsItem->selfrecord()) { 47 ALOGE("selfrecord() returned false. sessioId %" PRId64, analyticsItem->getSessionID()); 48 } 49 50 return OK; 51 } 52 53 String8 sanitize(const String8& input) { 54 // Filters the input string down to just alphanumeric characters. 55 String8 output; 56 for (size_t i = 0; i < input.size(); ++i) { 57 char candidate = input[i]; 58 if ((candidate >= 'a' && candidate <= 'z') || 59 (candidate >= 'A' && candidate <= 'Z') || 60 (candidate >= '0' && candidate <= '9')) { 61 output.append(&candidate, 1); 62 } 63 } 64 return output; 65 } 66 67 } // namespace 68 69 status_t reportDrmPluginMetrics(const std::string& b64EncodedMetrics, 70 const String8& vendor, 71 const String8& description, 72 const String8& appPackageName) { 73 74 String8 name = String8::format("drm.vendor.%s.%s", 75 sanitize(vendor).c_str(), 76 sanitize(description).c_str()); 77 78 return reportVendorMetrics(b64EncodedMetrics, name, appPackageName); 79 } 80 81 } // namespace android 82
