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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/safe_browsing/content/browser/client_side_detection_feature_cache.h"
#include "base/check_op.h"
#include "components/safe_browsing/core/common/proto/csd.pb.h"
#include "content/public/browser/web_contents_user_data.h"
using content::WebContents;
namespace safe_browsing {
using DebuggingMetadata = LoginReputationClientRequest::DebuggingMetadata;
ClientSideDetectionFeatureCache::ClientSideDetectionFeatureCache(
content::WebContents* web_contents)
: content::WebContentsUserData<ClientSideDetectionFeatureCache>(
*web_contents) {}
ClientSideDetectionFeatureCache::~ClientSideDetectionFeatureCache() = default;
void ClientSideDetectionFeatureCache::InsertVerdict(
const GURL& url,
std::unique_ptr<ClientPhishingRequest> verdict) {
verdict_map_[url] = std::move(verdict);
gurl_queue_.push(url);
while (verdict_map_.size() > kMaxMapCapacity) {
GURL popped_url = gurl_queue_.front();
verdict_map_.erase(popped_url);
gurl_queue_.pop();
}
}
ClientPhishingRequest* ClientSideDetectionFeatureCache::GetVerdictForURL(
const GURL& url) {
auto it = verdict_map_.find(url);
if (it == verdict_map_.end()) {
return nullptr;
}
return it->second.get();
}
size_t ClientSideDetectionFeatureCache::GetMaxMapCapacity() {
return kMaxMapCapacity;
}
long ClientSideDetectionFeatureCache::GetTotalVerdictEntriesSize() {
long total_verdicts_size = 0;
for (auto& it : verdict_map_) {
total_verdicts_size += it.second->ByteSizeLong();
}
return total_verdicts_size;
}
LoginReputationClientRequest::DebuggingMetadata*
ClientSideDetectionFeatureCache::GetOrCreateDebuggingMetadataForURL(
const GURL& url) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DebuggingMetadata* debugging_metadata = GetDebuggingMetadataForURL(url);
if (!debugging_metadata) {
std::unique_ptr<DebuggingMetadata> new_debugging_metadata(
new DebuggingMetadata);
debug_metadata_map_[url] = std::move(new_debugging_metadata);
debugging_metadata_deque_.push_back(url);
while (debug_metadata_map_.size() > kMaxMapCapacity) {
GURL popped_url = debugging_metadata_deque_.front();
RemoveDebuggingMetadataForURL(popped_url);
}
debugging_metadata = GetDebuggingMetadataForURL(url);
}
return debugging_metadata;
}
void ClientSideDetectionFeatureCache::RemoveDebuggingMetadataForURL(
const GURL& url) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
// The remove function is called when PW-Reuse is called, and we want to
// ensure that the most recent debugging metadata is the URL that the
// PW-Reuse happened on. We do not need to check whether the map contains the
// url because the erase function handles that already.
debug_metadata_map_.erase(url);
for (std::deque<GURL>::iterator it = debugging_metadata_deque_.begin();
it != debugging_metadata_deque_.end();) {
if (*it == url) {
it = debugging_metadata_deque_.erase(it);
break;
}
++it;
}
}
DebuggingMetadata* ClientSideDetectionFeatureCache::GetDebuggingMetadataForURL(
const GURL& url) {
auto it = debug_metadata_map_.find(url);
if (it == debug_metadata_map_.end()) {
return nullptr;
}
return it->second.get();
}
long ClientSideDetectionFeatureCache::
GetTotalDebuggingMetadataMapEntriesSize() {
long total_debugging_metadata_size = 0;
for (auto& it : debug_metadata_map_) {
total_debugging_metadata_size += it.second->ByteSizeLong();
}
return total_debugging_metadata_size;
}
void ClientSideDetectionFeatureCache::AddClearCacheSubscription(
base::WeakPtr<ClientSideDetectionService> csd_service) {
clear_cache_subscription_ =
csd_service->RegisterCallbackForModelUpdates(base::BindRepeating(
&ClientSideDetectionFeatureCache::Clear, base::Unretained(this)));
}
void ClientSideDetectionFeatureCache::Clear() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
verdict_map_.clear();
base::queue<GURL> empty_gurl;
gurl_queue_.swap(empty_gurl);
debug_metadata_map_.clear();
debugging_metadata_deque_.clear();
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(ClientSideDetectionFeatureCache);
} // namespace safe_browsing
|
