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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "services/network/http_cache_data_remover.h"
#include <set>
#include <string>
#include "base/containers/flat_set.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/task/sequenced_task_runner.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "net/disk_cache/disk_cache.h"
#include "net/http/http_cache.h"
#include "net/http/http_network_session.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "services/network/data_remover_util.h"
#include "services/network/public/mojom/clear_data_filter.mojom.h"
#include "services/network/public/mojom/network_context.mojom.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace network {
HttpCacheDataRemover::HttpCacheDataRemover(
mojom::ClearDataFilterPtr url_filter,
base::Time delete_begin,
base::Time delete_end,
HttpCacheDataRemoverCallback done_callback)
: delete_begin_(delete_begin),
delete_end_(delete_end),
done_callback_(std::move(done_callback)),
backend_(nullptr) {
DCHECK(!done_callback_.is_null());
if (!url_filter) {
return;
}
url_matcher_ = BindDoesUrlMatchFilter(url_filter->type, url_filter->origins,
url_filter->domains);
}
HttpCacheDataRemover::~HttpCacheDataRemover() = default;
// static.
std::unique_ptr<HttpCacheDataRemover> HttpCacheDataRemover::CreateAndStart(
net::URLRequestContext* url_request_context,
mojom::ClearDataFilterPtr url_filter,
base::Time delete_begin,
base::Time delete_end,
HttpCacheDataRemoverCallback done_callback) {
// Store data from `url_filter` needed by ClearNoVarySearchCache() before we
// move `url_filter` into HttpCacheDataRemover.
base::flat_set<url::Origin> origins;
base::flat_set<std::string> domains;
// Default to deleting everything in the specified time range if `url_filter`
// was not supplied.
net::UrlFilterType url_filter_type = net::UrlFilterType::kFalseIfMatches;
if (url_filter) {
const mojom::ClearDataFilter& filter = *url_filter;
url_filter_type = ConvertClearDataFilterType(filter.type);
origins = base::flat_set<url::Origin>(filter.origins.begin(),
filter.origins.end());
domains = base::flat_set<std::string>(filter.domains.begin(),
filter.domains.end());
}
DCHECK(done_callback);
std::unique_ptr<HttpCacheDataRemover> remover(
new HttpCacheDataRemover(std::move(url_filter), delete_begin, delete_end,
std::move(done_callback)));
net::HttpCache* http_cache =
url_request_context->http_transaction_factory()->GetCache();
if (!http_cache) {
// Some contexts might not have a cache, in which case we are done.
// Notify by posting a task to avoid reentrency.
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(&HttpCacheDataRemover::ClearHttpCacheDone,
remover->weak_factory_.GetWeakPtr(), net::OK));
return remover;
}
// Clear QUIC server information from memory and the disk cache.
// TODO(crbug.com/41374118): add a browser test to validate the QUIC
// information is cleared.
http_cache->GetSession()
->quic_session_pool()
->ClearCachedStatesInCryptoConfig(remover->url_matcher_);
// Clear the in-memory mapping of URLs using the No-Vary-Search response
// header, and its persisted version on disk.
http_cache->ClearNoVarySearchCache(url_filter_type, origins, domains,
delete_begin, delete_end);
auto callback = base::BindOnce(&HttpCacheDataRemover::CacheRetrieved,
remover->weak_factory_.GetWeakPtr());
net::HttpCache::GetBackendResult result =
http_cache->GetBackend(std::move(callback));
if (result.first != net::ERR_IO_PENDING) {
remover->CacheRetrieved(result);
}
return remover;
}
void HttpCacheDataRemover::CacheRetrieved(
std::pair<int, raw_ptr<disk_cache::Backend>> result) {
DCHECK(done_callback_);
int rv = result.first;
backend_ = result.second;
// |backend_| can be null if it cannot be initialized.
if (rv != net::OK || !backend_) {
backend_ = nullptr;
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(&HttpCacheDataRemover::ClearHttpCacheDone,
weak_factory_.GetWeakPtr(), rv));
return;
}
if (!url_matcher_.is_null()) {
deletion_helper_ = ConditionalCacheDeletionHelper::CreateAndStart(
backend_, url_matcher_, delete_begin_, delete_end_,
base::BindOnce(&HttpCacheDataRemover::ClearHttpCacheDone,
weak_factory_.GetWeakPtr(), net::OK));
return;
}
if (delete_begin_.is_null() && delete_end_.is_max()) {
rv = backend_->DoomAllEntries(base::BindOnce(
&HttpCacheDataRemover::ClearHttpCacheDone, weak_factory_.GetWeakPtr()));
} else {
rv = backend_->DoomEntriesBetween(
delete_begin_, delete_end_,
base::BindOnce(&HttpCacheDataRemover::ClearHttpCacheDone,
weak_factory_.GetWeakPtr()));
}
if (rv != net::ERR_IO_PENDING) {
// Notify by posting a task to avoid reentrency.
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(&HttpCacheDataRemover::ClearHttpCacheDone,
weak_factory_.GetWeakPtr(), rv));
}
}
void HttpCacheDataRemover::ClearHttpCacheDone(int rv) {
std::move(done_callback_).Run(this);
}
} // namespace network
|
