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
reportVendorMetrics(const std::string & metrics,const String8 & name,const String8 & appPackageName)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
sanitize(const String8 & input)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
reportDrmPluginMetrics(const std::string & b64EncodedMetrics,const String8 & vendor,const String8 & description,const String8 & appPackageName)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