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
|
// Copyright (c) 2013 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/autofill/browser/autocheckout/whitelist_manager.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/metrics/field_trial.h"
#include "base/string_util.h"
#include "base/strings/string_split.h"
#include "components/autofill/common/autofill_switches.h"
#include "content/public/browser/browser_context.h"
#include "googleurl/src/gurl.h"
#include "net/base/load_flags.h"
#include "net/http/http_status_code.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_context_getter.h"
namespace {
// Back off in seconds after each whitelist download is attempted.
const int kDownloadIntervalSeconds = 86400; // 1 day
// The delay in seconds after startup before download whitelist. This helps
// to reduce contention at startup time.
const int kInitialDownloadDelaySeconds = 3;
const char kWhitelistUrl[] =
"https://www.gstatic.com/commerce/autocheckout/whitelist.csv";
const char kWhiteListKeyName[] = "autocheckout_whitelist_manager";
} // namespace
namespace autofill {
namespace autocheckout {
WhitelistManager::WhitelistManager()
: callback_is_pending_(false),
experimental_form_filling_enabled_(
CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableExperimentalFormFilling) ||
base::FieldTrialList::FindFullName("Autocheckout") == "Yes"),
bypass_autocheckout_whitelist_(
CommandLine::ForCurrentProcess()->HasSwitch(
switches::kBypassAutocheckoutWhitelist)) {
}
WhitelistManager::~WhitelistManager() {}
void WhitelistManager::Init(net::URLRequestContextGetter* context_getter) {
DCHECK(context_getter);
context_getter_ = context_getter;
ScheduleDownload(kInitialDownloadDelaySeconds);
}
void WhitelistManager::ScheduleDownload(size_t interval_seconds) {
if (!experimental_form_filling_enabled_) {
// The feature is not enabled: do not do the request.
return;
}
if (download_timer_.IsRunning() || callback_is_pending_) {
// A download activity is already scheduled or happening.
return;
}
StartDownloadTimer(interval_seconds);
}
void WhitelistManager::StartDownloadTimer(size_t interval_seconds) {
download_timer_.Start(FROM_HERE,
base::TimeDelta::FromSeconds(interval_seconds),
this,
&WhitelistManager::TriggerDownload);
}
const AutofillMetrics& WhitelistManager::GetMetricLogger() const {
return metrics_logger_;
}
void WhitelistManager::TriggerDownload() {
callback_is_pending_ = true;
request_started_timestamp_ = base::Time::Now();
request_.reset(net::URLFetcher::Create(
0, GURL(kWhitelistUrl), net::URLFetcher::GET, this));
request_->SetRequestContext(context_getter_);
request_->SetAutomaticallyRetryOn5xx(false);
request_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES |
net::LOAD_DO_NOT_SEND_COOKIES);
request_->Start();
}
void WhitelistManager::StopDownloadTimer() {
download_timer_.Stop();
callback_is_pending_ = false;
}
void WhitelistManager::OnURLFetchComplete(
const net::URLFetcher* source) {
DCHECK(callback_is_pending_);
callback_is_pending_ = false;
scoped_ptr<net::URLFetcher> old_request = request_.Pass();
DCHECK_EQ(source, old_request.get());
AutofillMetrics::AutocheckoutWhitelistDownloadStatus status;
base::TimeDelta duration = base::Time::Now() - request_started_timestamp_;
if (source->GetResponseCode() == net::HTTP_OK) {
std::string data;
source->GetResponseAsString(&data);
BuildWhitelist(data);
status = AutofillMetrics::AUTOCHECKOUT_WHITELIST_DOWNLOAD_SUCCEEDED;
} else {
status = AutofillMetrics::AUTOCHECKOUT_WHITELIST_DOWNLOAD_FAILED;
}
GetMetricLogger().LogAutocheckoutWhitelistDownloadDuration(duration, status);
ScheduleDownload(kDownloadIntervalSeconds);
}
std::string WhitelistManager::GetMatchedURLPrefix(const GURL& url) const {
if (!experimental_form_filling_enabled_ || url.is_empty())
return std::string();
for (std::vector<std::string>::const_iterator it = url_prefixes_.begin();
it != url_prefixes_.end(); ++it) {
// This is only for ~20 sites initially, liner search is sufficient.
// TODO(benquan): Look for optimization options when we support
// more sites.
if (StartsWithASCII(url.spec(), *it, true)) {
DVLOG(1) << "WhitelistManager matched URLPrefix: " << *it;
return *it;
}
}
return bypass_autocheckout_whitelist_ ? url.spec() : std::string();
}
void WhitelistManager::BuildWhitelist(const std::string& data) {
std::vector<std::string> new_url_prefixes;
std::vector<std::string> lines;
base::SplitString(data, '\n', &lines);
for (std::vector<std::string>::const_iterator line = lines.begin();
line != lines.end(); ++line) {
if (!line->empty()) {
std::vector<std::string> fields;
base::SplitString(*line, ',', &fields);
// Currently we have only one column in the whitelist file, if we decide
// to add more metadata as additional columns, previous versions of
// Chrome can ignore them and continue to work.
if (!fields[0].empty())
new_url_prefixes.push_back(fields[0]);
}
}
url_prefixes_ = new_url_prefixes;
}
} // namespace autocheckout
} // namespace autofill
|
