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
|
// Copyright 2020 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 "weblayer/browser/signin_url_loader_throttle.h"
#include "base/task/post_task.h"
#include "components/content_settings/core/browser/cookie_settings.h"
#include "components/signin/core/browser/signin_header_helper.h"
#include "components/signin/public/base/account_consistency_method.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_task_traits.h"
#include "google_apis/gaia/gaia_auth_util.h"
#include "net/base/url_util.h"
#include "third_party/blink/public/mojom/loader/resource_load_info.mojom.h"
#include "weblayer/browser/cookie_settings_factory.h"
#include "weblayer/browser/tab_impl.h"
#include "weblayer/public/google_accounts_delegate.h"
namespace weblayer {
const char kSignOutPath[] = "/SignOutOptions";
namespace {
constexpr char kWebLayerMirrorHeaderSource[] = "WebLayer";
GoogleAccountsDelegate* GetDelegate(
const content::WebContents::Getter& web_contents_getter) {
auto* web_contents = web_contents_getter.Run();
if (!web_contents)
return nullptr;
auto* tab = TabImpl::FromWebContents(web_contents);
if (!tab)
return nullptr;
return tab->google_accounts_delegate();
}
void ProcessMirrorHeader(content::WebContents::Getter web_contents_getter,
const signin::ManageAccountsParams& params) {
auto* delegate = GetDelegate(web_contents_getter);
if (delegate)
delegate->OnGoogleAccountsRequest(params);
}
void MaybeAddQueryParams(GURL* url) {
// Add manage=true to query parameters for sign out URLs to make sure we
// receive the Mirror response headers instead of the normal sign out page.
if (gaia::IsGaiaSignonRealm(url->GetOrigin()) &&
url->path_piece() == kSignOutPath) {
*url = net::AppendOrReplaceQueryParameter(*url, "manage", "true");
}
}
} // namespace
SigninURLLoaderThrottle::~SigninURLLoaderThrottle() = default;
// static
std::unique_ptr<SigninURLLoaderThrottle> SigninURLLoaderThrottle::Create(
content::BrowserContext* browser_context,
content::WebContents::Getter web_contents_getter) {
if (!GetDelegate(web_contents_getter))
return nullptr;
// Use base::WrapUnique + new because of the constructor is private.
return base::WrapUnique(new SigninURLLoaderThrottle(
browser_context, std::move(web_contents_getter)));
}
void SigninURLLoaderThrottle::WillStartRequest(
network::ResourceRequest* request,
bool* defer) {
GoogleAccountsDelegate* delegate = GetDelegate(web_contents_getter_);
if (!delegate)
return;
MaybeAddQueryParams(&request->url);
request_url_ = request->url;
is_main_frame_ =
static_cast<blink::mojom::ResourceType>(request->resource_type) ==
blink::mojom::ResourceType::kMainFrame;
net::HttpRequestHeaders modified_request_headers;
std::vector<std::string> to_be_removed_request_headers;
ProcessRequest(GURL(), &request->headers, &to_be_removed_request_headers,
&modified_request_headers);
signin::RequestAdapter adapter(request_url_, request->headers,
&modified_request_headers,
&to_be_removed_request_headers);
request_headers_.CopyFrom(request->headers);
}
void SigninURLLoaderThrottle::WillRedirectRequest(
net::RedirectInfo* redirect_info,
const network::mojom::URLResponseHead& response_head,
bool* defer,
std::vector<std::string>* headers_to_remove,
net::HttpRequestHeaders* modified_headers,
net::HttpRequestHeaders* modified_cors_exempt_request_headers) {
if (!GetDelegate(web_contents_getter_))
return;
MaybeAddQueryParams(&redirect_info->new_url);
ProcessRequest(redirect_info->new_url, &request_headers_, headers_to_remove,
modified_headers);
ProcessResponse(response_head.headers.get());
request_url_ = redirect_info->new_url;
}
void SigninURLLoaderThrottle::WillProcessResponse(
const GURL& response_url,
network::mojom::URLResponseHead* response_head,
bool* defer) {
if (!GetDelegate(web_contents_getter_))
return;
ProcessResponse(response_head->headers.get());
}
SigninURLLoaderThrottle::SigninURLLoaderThrottle(
content::BrowserContext* browser_context,
content::WebContents::Getter web_contents_getter)
: browser_context_(browser_context),
web_contents_getter_(std::move(web_contents_getter)) {}
void SigninURLLoaderThrottle::ProcessRequest(
const GURL& new_url,
net::HttpRequestHeaders* original_headers,
std::vector<std::string>* headers_to_remove,
net::HttpRequestHeaders* modified_headers) {
GoogleAccountsDelegate* delegate = GetDelegate(web_contents_getter_);
if (!delegate)
return;
signin::RequestAdapter request_adapter(request_url_, *original_headers,
modified_headers, headers_to_remove);
// Disable incognito and adding accounts for now. This shouldn't matter in
// practice though since we are skipping the /SignOutOptions page completely
// with the manage=true param.
signin::AppendOrRemoveMirrorRequestHeader(
&request_adapter, new_url, delegate->GetGaiaId(),
signin::AccountConsistencyMethod::kMirror,
CookieSettingsFactory::GetForBrowserContext(browser_context_).get(),
signin::PROFILE_MODE_INCOGNITO_DISABLED |
signin::PROFILE_MODE_ADD_ACCOUNT_DISABLED,
kWebLayerMirrorHeaderSource, true /* force_account_consistency */);
original_headers->MergeFrom(*modified_headers);
for (const std::string& name : *headers_to_remove)
original_headers->RemoveHeader(name);
}
void SigninURLLoaderThrottle::ProcessResponse(
const net::HttpResponseHeaders* headers) {
if (!gaia::IsGaiaSignonRealm(request_url_.GetOrigin()) || !is_main_frame_ ||
!headers) {
return;
}
std::string header_value;
if (!headers->GetNormalizedHeader(signin::kChromeManageAccountsHeader,
&header_value)) {
return;
}
signin::ManageAccountsParams params =
signin::BuildManageAccountsParams(header_value);
if (params.service_type == signin::GAIA_SERVICE_TYPE_NONE)
return;
// Only process one mirror header per request (multiple headers on the same
// redirect chain are ignored).
if (response_header_processed_) {
LOG(ERROR) << "Multiple X-Chrome-Manage-Accounts headers on a redirect "
<< "chain, ignoring";
return;
}
response_header_processed_ = true;
// Post a task even if we are already on the UI thread to avoid making any
// requests while processing a throttle event.
base::PostTask(
FROM_HERE, {content::BrowserThread::UI},
base::BindOnce(&ProcessMirrorHeader, web_contents_getter_, params));
}
} // namespace weblayer
|
