1 /*
2  * Copyright (C) 2019 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 #pragma once
17 
18 #include "WorkDirectory.h"
19 
20 #include <android/os/BnIncidentAuthListener.h>
21 #include <android/os/IIncidentCompanion.h>
22 #include <frameworks/base/cmds/incidentd/src/report_file.pb.h>
23 
24 namespace android {
25 namespace os {
26 namespace incidentd {
27 
28 using android::binder::Status;
29 using android::os::BnIncidentAuthListener;
30 using android::os::IIncidentCompanion;
31 
32 class ReportHandler;
33 
34 class Broadcaster : public virtual RefBase {
35 public:
36     enum broadcast_status_t {
37         BROADCASTS_FINISHED = 0,
38         BROADCASTS_REPEAT = 1,
39         BROADCASTS_BACKOFF = 2
40     };
41 
42     Broadcaster(const sp<WorkDirectory>& workDirectory);
43 
44     void setHandler(const sp<ReportHandler>& handler);
45 
46     /**
47      * Reset the beginning timestamp for broadcasts.  Call this when
48      * the system_server restarts.
49      */
50     void reset();
51 
52     /**
53      * Remove the history record for the broadcasts, including pending authorizations
54      * if necessary.
55      */
56     void clearBroadcasts(const string& pkg, const string& cls, const string& id);
57     void clearPackageBroadcasts(const string& pkg);
58 
59     /**
60      * Send whichever broadcasts have been pending.
61      */
62     broadcast_status_t sendBroadcasts();
63 
64 private:
65     struct ReportId {
66         ReportId();
67         ReportId(const ReportId& that);
68         ReportId(const string& i, const string& p, const string& c);
69         ~ReportId();
70 
71         bool operator<(const ReportId& that) const;
72 
73         string id;
74         string pkg;
75         string cls;
76     };
77 
78     class ConsentListener : public BnIncidentAuthListener {
79       public:
80         ConsentListener(const sp<Broadcaster>& broadcaster, const ReportId& reportId);
81         virtual ~ConsentListener();
82         virtual Status onReportApproved();
83         virtual Status onReportDenied();
84       private:
85         sp<Broadcaster> mBroadcaster;
86         ReportId mId;
87     };
88 
89     struct ReportStatus {
90         ReportStatus();
91         ReportStatus(const ReportStatus& that);
92         ~ReportStatus();
93 
94         bool approval_sent;
95         bool ready_sent;
96         sp<ConsentListener> listener;
97     };
98 
99     sp<ReportHandler> mReportHandler;
100     sp<WorkDirectory> mWorkDirectory;
101 
102     // protected by mLock
103     mutex mLock;
104     map<ReportId,ReportStatus> mHistory; // what we sent so we don't send it again
105     int64_t mLastSent;
106 
107     void set_last_sent(int64_t timestamp);
108     int64_t get_last_sent();
109     void print_report_statuses() const;
110     status_t send_approval_broadcasts(const string& id, const string& pkg, const string& cls);
111     void report_approved(const ReportId& reportId);
112     void report_denied(const ReportId& reportId);
113     status_t send_report_ready_broadcasts(const string& id, const string& pkg, const string& cls);
114     status_t send_to_dropbox(const sp<ReportFile>& file, const IncidentReportArgs& args);
115     bool was_approval_sent(const string& id, const string& pkg, const string& cls);
116     void set_approval_sent(const string& id, const string& pkg, const string& cls,
117             const sp<ConsentListener>& listener);
118     bool was_ready_sent(const string& id, const string& pkg, const string& cls);
119     void set_ready_sent(const string& id, const string& pkg, const string& cls);
120     sp<IIncidentCompanion> get_incident_companion();
121 };
122 
123 
124 }  // namespace incidentd
125 }  // namespace os
126 }  // namespace android
127 
128