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
|
// Copyright 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 "chrome/browser/extensions/blacklist_state_fetcher.h"
#include "base/stl_util.h"
#include "base/strings/stringprintf.h"
#include "base/thread_task_runner_handle.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/safe_browsing/protocol_manager_helper.h"
#include "chrome/browser/safe_browsing/safe_browsing_service.h"
#include "chrome/common/safe_browsing/crx_info.pb.h"
#include "google_apis/google_api_keys.h"
#include "net/base/escape.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "net/url_request/url_request_status.h"
#include "url/gurl.h"
using content::BrowserThread;
namespace extensions {
BlacklistStateFetcher::BlacklistStateFetcher()
: url_fetcher_id_(0),
weak_ptr_factory_(this) {}
BlacklistStateFetcher::~BlacklistStateFetcher() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
STLDeleteContainerPairFirstPointers(requests_.begin(), requests_.end());
requests_.clear();
}
void BlacklistStateFetcher::Request(const std::string& id,
const RequestCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!safe_browsing_config_) {
if (g_browser_process && g_browser_process->safe_browsing_service()) {
SetSafeBrowsingConfig(
g_browser_process->safe_browsing_service()->GetProtocolConfig());
} else {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(callback, BLACKLISTED_UNKNOWN));
return;
}
}
bool request_already_sent = ContainsKey(callbacks_, id);
callbacks_.insert(std::make_pair(id, callback));
if (request_already_sent)
return;
if (!url_request_context_getter_ && g_browser_process &&
g_browser_process->safe_browsing_service()) {
url_request_context_getter_ =
g_browser_process->safe_browsing_service()->url_request_context();
}
SendRequest(id);
}
void BlacklistStateFetcher::SendRequest(const std::string& id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
ClientCRXListInfoRequest request;
request.set_id(id);
std::string request_str;
request.SerializeToString(&request_str);
GURL request_url = RequestUrl();
net::URLFetcher* fetcher =
net::URLFetcher::Create(url_fetcher_id_++, request_url,
net::URLFetcher::POST, this).release();
requests_[fetcher] = id;
fetcher->SetAutomaticallyRetryOn5xx(false); // Don't retry on error.
fetcher->SetRequestContext(url_request_context_getter_.get());
fetcher->SetUploadData("application/octet-stream", request_str);
fetcher->Start();
}
void BlacklistStateFetcher::SetSafeBrowsingConfig(
const safe_browsing::SafeBrowsingProtocolConfig& config) {
safe_browsing_config_.reset(
new safe_browsing::SafeBrowsingProtocolConfig(config));
}
void BlacklistStateFetcher::SetURLRequestContextForTest(
net::URLRequestContextGetter* request_context) {
url_request_context_getter_ = request_context;
}
GURL BlacklistStateFetcher::RequestUrl() const {
std::string url = base::StringPrintf(
"%s/%s?client=%s&appver=%s&pver=2.2",
safe_browsing_config_->url_prefix.c_str(),
"clientreport/crx-list-info",
safe_browsing_config_->client_name.c_str(),
safe_browsing_config_->version.c_str());
std::string api_key = google_apis::GetAPIKey();
if (!api_key.empty()) {
base::StringAppendF(&url, "&key=%s",
net::EscapeQueryParamValue(api_key, true).c_str());
}
return GURL(url);
}
void BlacklistStateFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
std::map<const net::URLFetcher*, std::string>::iterator it =
requests_.find(source);
if (it == requests_.end()) {
NOTREACHED();
return;
}
scoped_ptr<const net::URLFetcher> fetcher;
fetcher.reset(it->first);
std::string id = it->second;
requests_.erase(it);
BlacklistState state;
if (source->GetStatus().is_success() && source->GetResponseCode() == 200) {
std::string data;
source->GetResponseAsString(&data);
ClientCRXListInfoResponse response;
if (response.ParseFromString(data)) {
state = static_cast<BlacklistState>(response.verdict());
} else {
state = BLACKLISTED_UNKNOWN;
}
} else {
if (source->GetStatus().status() == net::URLRequestStatus::FAILED) {
VLOG(1) << "Blacklist request for: " << id
<< " failed with error: " << source->GetStatus().error();
} else {
VLOG(1) << "Blacklist request for: " << id
<< " failed with error: " << source->GetResponseCode();
}
state = BLACKLISTED_UNKNOWN;
}
std::pair<CallbackMultiMap::iterator, CallbackMultiMap::iterator> range =
callbacks_.equal_range(id);
for (CallbackMultiMap::const_iterator callback_it = range.first;
callback_it != range.second;
++callback_it) {
callback_it->second.Run(state);
}
callbacks_.erase(range.first, range.second);
}
} // namespace extensions
|
