1 /*
2 * Copyright (C) 2021 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 "MediaMetricsService" // not ValidateId
19 #include <utils/Log.h>
20
21 #include "ValidateId.h"
22
23 namespace android::mediametrics {
24
dump() const25 std::string ValidateId::dump() const
26 {
27 std::stringstream ss;
28 ss << "Entries:" << mIdSet.size() << " InvalidIds:" << mInvalidIds << "\n";
29 ss << mIdSet.dump(10);
30 return ss.str();
31 }
32
registerId(const std::string & id)33 void ValidateId::registerId(const std::string& id)
34 {
35 if (id.empty()) return;
36 if (!mediametrics::stringutils::isLogSessionId(id.c_str())) {
37 ALOGW("%s: rejecting malformed id %s", __func__, id.c_str());
38 return;
39 }
40 ALOGV("%s: registering %s", __func__, id.c_str());
41 mIdSet.add(id);
42 }
43
validateId(const std::string & id)44 const std::string& ValidateId::validateId(const std::string& id)
45 {
46 static const std::string empty{};
47 if (id.empty()) return empty;
48
49 // reject because the id is malformed
50 if (!mediametrics::stringutils::isLogSessionId(id.c_str())) {
51 ALOGW("%s: rejecting malformed id %s", __func__, id.c_str());
52 ++mInvalidIds;
53 return empty;
54 }
55
56 // reject because the id is unregistered
57 if (!mIdSet.check(id)) {
58 ALOGW("%s: rejecting unregistered id %s", __func__, id.c_str());
59 ++mInvalidIds;
60 return empty;
61 }
62 return id;
63 }
64
65 } // namespace android::mediametrics
66