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 2014 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 "components/sessions/ios/ios_serialized_navigation_driver.h"
#include "base/memory/singleton.h"
#include "components/sessions/core/serialized_navigation_entry.h"
#include "ios/web/public/referrer.h"
namespace sessions {
namespace {
const int kObsoleteReferrerPolicyAlways = 0;
const int kObsoleteReferrerPolicyDefault = 1;
const int kObsoleteReferrerPolicyNever = 2;
const int kObsoleteReferrerPolicyOrigin = 3;
} // namespace
// static
SerializedNavigationDriver* SerializedNavigationDriver::Get() {
return IOSSerializedNavigationDriver::GetInstance();
}
// static
IOSSerializedNavigationDriver*
IOSSerializedNavigationDriver::GetInstance() {
return base::Singleton<
IOSSerializedNavigationDriver,
base::LeakySingletonTraits<IOSSerializedNavigationDriver>>::get();
}
IOSSerializedNavigationDriver::IOSSerializedNavigationDriver() {
}
IOSSerializedNavigationDriver::~IOSSerializedNavigationDriver() {
}
int IOSSerializedNavigationDriver::GetDefaultReferrerPolicy() const {
return web::ReferrerPolicyDefault;
}
bool IOSSerializedNavigationDriver::MapReferrerPolicyToOldValues(
int referrer_policy,
int* mapped_referrer_policy) const {
switch (referrer_policy) {
case web::ReferrerPolicyAlways:
case web::ReferrerPolicyDefault:
// "always" and "default" are the same value in all versions.
*mapped_referrer_policy = referrer_policy;
return true;
case web::ReferrerPolicyOrigin:
// "origin" exists in the old encoding.
*mapped_referrer_policy = kObsoleteReferrerPolicyOrigin;
return true;
default:
// Everything else is mapped to never.
*mapped_referrer_policy = kObsoleteReferrerPolicyNever;
return false;
}
}
bool IOSSerializedNavigationDriver::MapReferrerPolicyToNewValues(
int referrer_policy,
int* mapped_referrer_policy) const {
switch (referrer_policy) {
case kObsoleteReferrerPolicyAlways:
case kObsoleteReferrerPolicyDefault:
// "always" and "default" are the same value in all versions.
*mapped_referrer_policy = referrer_policy;
return true;
default:
// Since we don't know what encoding was used, we map the rest to "never".
*mapped_referrer_policy = web::ReferrerPolicyNever;
return false;
}
}
std::string
IOSSerializedNavigationDriver::GetSanitizedPageStateForPickle(
const SerializedNavigationEntry* navigation) const {
return std::string();
}
void IOSSerializedNavigationDriver::Sanitize(
SerializedNavigationEntry* navigation) const {
web::Referrer referrer(
navigation->referrer_url_,
static_cast<web::ReferrerPolicy>(navigation->referrer_policy_));
if (!navigation->virtual_url_.SchemeIsHTTPOrHTTPS() ||
!referrer.url.SchemeIsHTTPOrHTTPS()) {
referrer.url = GURL();
} else {
if (referrer.policy < 0 || referrer.policy > web::ReferrerPolicyLast) {
NOTREACHED();
referrer.policy = web::ReferrerPolicyNever;
}
bool is_downgrade = referrer.url.SchemeIsCryptographic() &&
!navigation->virtual_url_.SchemeIsCryptographic();
switch (referrer.policy) {
case web::ReferrerPolicyDefault:
if (is_downgrade)
referrer.url = GURL();
break;
case web::ReferrerPolicyNoReferrerWhenDowngrade:
if (is_downgrade)
referrer.url = GURL();
case web::ReferrerPolicyAlways:
break;
case web::ReferrerPolicyNever:
referrer.url = GURL();
break;
case web::ReferrerPolicyOrigin:
referrer.url = referrer.url.GetOrigin();
break;
case web::ReferrerPolicyOriginWhenCrossOrigin:
if (navigation->virtual_url_.GetOrigin() != referrer.url.GetOrigin())
referrer.url = referrer.url.GetOrigin();
break;
}
}
// Reset the referrer if it has changed.
if (navigation->referrer_url_ != referrer.url) {
navigation->referrer_url_ = GURL();
navigation->referrer_policy_ = GetDefaultReferrerPolicy();
}
}
std::string IOSSerializedNavigationDriver::StripReferrerFromPageState(
const std::string& page_state) const {
return std::string();
}
} // namespace sessions
|
