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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/cookies/site_for_cookies.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "net/cookies/cookie_util.h"
namespace net {
namespace {
std::string RegistrableDomainOrHost(const std::string& host) {
std::string domain = registry_controlled_domains::GetDomainAndRegistry(
host, registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES);
return domain.empty() ? host : domain;
}
} // namespace
SiteForCookies::SiteForCookies() : schemefully_same_(false) {}
SiteForCookies::SiteForCookies(const SiteForCookies& other) = default;
SiteForCookies::SiteForCookies(SiteForCookies&& other) = default;
SiteForCookies::~SiteForCookies() = default;
SiteForCookies& SiteForCookies::operator=(const SiteForCookies& other) =
default;
SiteForCookies& SiteForCookies::operator=(SiteForCookies&& site_for_cookies) =
default;
// static
bool SiteForCookies::FromWire(const std::string& scheme,
const std::string& registrable_domain,
bool schemefully_same,
GURL first_party_url,
SiteForCookies* out) {
// Make sure scheme meets precondition of methods like
// GURL::SchemeIsCryptographic.
if (!base::IsStringASCII(scheme) || base::ToLowerASCII(scheme) != scheme)
return false;
// registrable_domain_ should also be canonicalized.
SiteForCookies candidate(scheme, registrable_domain);
candidate.first_party_url_ = first_party_url;
if (registrable_domain != candidate.registrable_domain_)
return false;
candidate.schemefully_same_ = schemefully_same;
*out = std::move(candidate);
return true;
}
// static
SiteForCookies SiteForCookies::FromOrigin(const url::Origin& origin) {
// Opaque origins are not first-party to anything.
if (origin.opaque())
return SiteForCookies();
SiteForCookies site_for_cookies = SiteForCookies(origin.scheme(), origin.host());
if (!origin.GetFullURL().is_empty())
site_for_cookies.first_party_url_ = origin.GetFullURL();
else
site_for_cookies.first_party_url_ = origin.GetURL();
return site_for_cookies;
}
// static
SiteForCookies SiteForCookies::FromUrl(const GURL& url) {
return SiteForCookies::FromOrigin(url::Origin::Create(url));
}
std::string SiteForCookies::ToDebugString() const {
std::string same_scheme_string = schemefully_same_ ? "true" : "false";
return base::StrCat({"SiteForCookies: {scheme=", scheme_,
"; registrable_domain=", registrable_domain_,
"; schemefully_same=", same_scheme_string, "}"});
}
bool SiteForCookies::IsFirstParty(const GURL& url) const {
return IsFirstPartyWithSchemefulMode(
url, cookie_util::IsSchemefulSameSiteEnabled());
}
bool SiteForCookies::IsFirstPartyWithSchemefulMode(
const GURL& url,
bool compute_schemefully) const {
if (compute_schemefully)
return IsSchemefullyFirstParty(url);
return IsSchemelesslyFirstParty(url);
}
bool SiteForCookies::IsEquivalent(const SiteForCookies& other) const {
if (IsNull())
return other.IsNull();
if (cookie_util::IsSchemefulSameSiteEnabled() &&
!CompatibleScheme(other.scheme())) {
return false;
}
if (registrable_domain_.empty())
return other.registrable_domain_.empty() && (scheme_ == other.scheme_);
return registrable_domain_ == other.registrable_domain_;
}
void SiteForCookies::MarkIfCrossScheme(const url::Origin& other) {
// If |this| is IsNull() then |this| doesn't match anything which means that
// the scheme check is pointless. Also exit early if schemefully_same_ is
// already false.
if (IsNull() || !schemefully_same_)
return;
// Mark if |other| is opaque. Opaque origins shouldn't match.
if (other.opaque()) {
schemefully_same_ = false;
return;
}
if (CompatibleScheme(other.scheme()))
return;
// The two are cross-scheme to each other.
schemefully_same_ = false;
}
GURL SiteForCookies::RepresentativeUrl() const {
if (IsNull())
return GURL();
GURL result(base::StrCat({scheme_, "://", registrable_domain_, "/"}));
DCHECK(result.is_valid());
return result;
}
bool SiteForCookies::IsNull() const {
if (cookie_util::IsSchemefulSameSiteEnabled())
return scheme_.empty() || !schemefully_same_;
return scheme_.empty();
}
SiteForCookies::SiteForCookies(const std::string& scheme,
const std::string& host)
: scheme_(scheme),
registrable_domain_(RegistrableDomainOrHost(host)),
schemefully_same_(!scheme.empty()) {}
bool SiteForCookies::CompatibleScheme(const std::string& other_scheme) const {
DCHECK(base::IsStringASCII(other_scheme));
DCHECK(base::ToLowerASCII(other_scheme) == other_scheme);
// Exact match case.
if (scheme_ == other_scheme)
return true;
// ["https", "wss"] case.
if ((scheme_ == url::kHttpsScheme || scheme_ == url::kWssScheme) &&
(other_scheme == url::kHttpsScheme || other_scheme == url::kWssScheme)) {
return true;
}
// ["http", "ws"] case.
if ((scheme_ == url::kHttpScheme || scheme_ == url::kWsScheme) &&
(other_scheme == url::kHttpScheme || other_scheme == url::kWsScheme)) {
return true;
}
return false;
}
bool SiteForCookies::IsSchemefullyFirstParty(const GURL& url) const {
// Can't use IsNull() as we want the same behavior regardless of
// SchemefulSameSite feature status.
if (scheme_.empty() || !schemefully_same_ || !url.is_valid())
return false;
return CompatibleScheme(url.scheme()) && IsSchemelesslyFirstParty(url);
}
bool SiteForCookies::IsSchemelesslyFirstParty(const GURL& url) const {
// Can't use IsNull() as we want the same behavior regardless of
// SchemefulSameSite feature status.
if (scheme_.empty() || !url.is_valid())
return false;
std::string other_registrable_domain = RegistrableDomainOrHost(url.host());
if (registrable_domain_.empty())
return other_registrable_domain.empty() && (scheme_ == url.scheme());
return registrable_domain_ == other_registrable_domain;
}
GURL SiteForCookies::first_party_url() const {
if (first_party_url_.is_empty())
return RepresentativeUrl();
return first_party_url_;
}
} // namespace net
|
