1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERMISSIONS_PERMISSION_AUDITING_DATABASE_H_
#define COMPONENTS_PERMISSIONS_PERMISSION_AUDITING_DATABASE_H_
#include <vector>
#include "base/time/time.h"
#include "components/content_settings/core/common/content_settings_types.h"
#include "components/permissions/permission_usage_session.h"
#include "sql/database.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "url/origin.h"
namespace base {
class FilePath;
} // namespace base
namespace permissions {
// Stores permission usage sessions for specific url origin and
// ContentSettingType in an SQLite database. Additionally, handles the queries
// about the last permission usage time for a specific origin.
// Threading constraints:
// 1) This class is not thread-safe, so each instance must be used on the same
// sequence;
// 2) Instances must be used on a sequence that can execute blocking tasks.
class PermissionAuditingDatabase {
public:
PermissionAuditingDatabase();
~PermissionAuditingDatabase();
PermissionAuditingDatabase(const PermissionAuditingDatabase&) = delete;
PermissionAuditingDatabase& operator=(const PermissionAuditingDatabase&) =
delete;
PermissionAuditingDatabase(PermissionAuditingDatabase&&) = delete;
PermissionAuditingDatabase& operator=(const PermissionAuditingDatabase&&) =
delete;
// Opens an existing database at `path` or creates a new one if none exists,
// and returns true on success.
bool Init(const base::FilePath& path);
// Appends a new permission usage `session` of the given permission `type` on
// a given `origin`. The `session` must be valid according to IsValid().
// Operation will fail if a session with the same primary key, that
// is, origin, type, and usage start time, already exists in the database.
// Returns if the operation was successful.
bool StorePermissionUsage(const PermissionUsageSession& session);
// Returns the detailed history stored for the permission `type` on a given
// `origin` from the specified `start_time`. The `origin` must not be opaque.
std::vector<PermissionUsageSession> GetPermissionUsageHistory(
ContentSettingsType type,
const url::Origin& origin,
base::Time start_time);
// Returns when the given permission `type` was last used on a given `origin`.
// Returns nullopt if no permission usages match the given constraints. The
// `origin` must not be opaque.
absl::optional<base::Time> GetLastPermissionUsageTime(
ContentSettingsType type,
const url::Origin& origin);
// Updates the usage end time for a specific usage session. The session is
// identified by the primary key {`type`, `origin`, `start_time`}, and must
// already exist. `start_time` must be less than or equal to `new_end_time`.
// Operation will fail if `start_time` or `new_end_time` is null. Returns if
// the operation was successful.
bool UpdateEndTime(ContentSettingsType type,
const url::Origin& origin,
base::Time start_time,
base::Time new_end_time);
// Deletes permission usage sessions, which started or ended in the given
// time range. A null `start_time` or `end_time` time is treated as -inf and
// +inf, respectively. Returns if the operation was successful.
bool DeleteSessionsBetween(base::Time start_time, base::Time end_time);
private:
bool CreateSchema();
// The SQL connection to database.
sql::Database db_;
};
} // namespace permissions
#endif // COMPONENTS_PERMISSIONS_PERMISSION_AUDITING_DATABASE_H_
|
