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// Copyright (c) 2012 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/safe_browsing/ping_manager.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "chrome/common/env_vars.h"
#include "content/public/browser/browser_thread.h"
#include "google_apis/google_api_keys.h"
#include "net/base/escape.h"
#include "net/base/load_flags.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_context_getter.h"
#include "net/url_request/url_request_status.h"
using content::BrowserThread;
// SafeBrowsingPingManager implementation ----------------------------------
// static
SafeBrowsingPingManager* SafeBrowsingPingManager::Create(
net::URLRequestContextGetter* request_context_getter,
const SafeBrowsingProtocolConfig& config) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
return new SafeBrowsingPingManager(request_context_getter, config);
}
SafeBrowsingPingManager::SafeBrowsingPingManager(
net::URLRequestContextGetter* request_context_getter,
const SafeBrowsingProtocolConfig& config)
: client_name_(config.client_name),
request_context_getter_(request_context_getter),
url_prefix_(config.url_prefix) {
DCHECK(!url_prefix_.empty());
version_ = SafeBrowsingProtocolManagerHelper::Version();
}
SafeBrowsingPingManager::~SafeBrowsingPingManager() {
// Delete in-progress safebrowsing reports (hits and details).
STLDeleteContainerPointers(safebrowsing_reports_.begin(),
safebrowsing_reports_.end());
}
// net::URLFetcherDelegate implementation ----------------------------------
// All SafeBrowsing request responses are handled here.
void SafeBrowsingPingManager::OnURLFetchComplete(
const net::URLFetcher* source) {
Reports::iterator sit = safebrowsing_reports_.find(source);
DCHECK(sit != safebrowsing_reports_.end());
delete *sit;
safebrowsing_reports_.erase(sit);
}
// Sends a SafeBrowsing "hit" for UMA users.
void SafeBrowsingPingManager::ReportSafeBrowsingHit(
const GURL& malicious_url,
const GURL& page_url,
const GURL& referrer_url,
bool is_subresource,
SBThreatType threat_type,
const std::string& post_data) {
GURL report_url = SafeBrowsingHitUrl(malicious_url, page_url,
referrer_url, is_subresource,
threat_type);
net::URLFetcher* report = net::URLFetcher::Create(
report_url,
post_data.empty() ? net::URLFetcher::GET : net::URLFetcher::POST,
this);
report->SetLoadFlags(net::LOAD_DISABLE_CACHE);
report->SetRequestContext(request_context_getter_.get());
if (!post_data.empty())
report->SetUploadData("text/plain", post_data);
safebrowsing_reports_.insert(report);
report->Start();
}
// Sends malware details for users who opt-in.
void SafeBrowsingPingManager::ReportMalwareDetails(
const std::string& report) {
GURL report_url = MalwareDetailsUrl();
net::URLFetcher* fetcher = net::URLFetcher::Create(
report_url, net::URLFetcher::POST, this);
fetcher->SetLoadFlags(net::LOAD_DISABLE_CACHE);
fetcher->SetRequestContext(request_context_getter_.get());
fetcher->SetUploadData("application/octet-stream", report);
// Don't try too hard to send reports on failures.
fetcher->SetAutomaticallyRetryOn5xx(false);
fetcher->Start();
safebrowsing_reports_.insert(fetcher);
}
GURL SafeBrowsingPingManager::SafeBrowsingHitUrl(
const GURL& malicious_url, const GURL& page_url,
const GURL& referrer_url, bool is_subresource,
SBThreatType threat_type) const {
DCHECK(threat_type == SB_THREAT_TYPE_URL_MALWARE ||
threat_type == SB_THREAT_TYPE_URL_PHISHING ||
threat_type == SB_THREAT_TYPE_URL_UNWANTED ||
threat_type == SB_THREAT_TYPE_BINARY_MALWARE_URL ||
threat_type == SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL ||
threat_type == SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL);
std::string url = SafeBrowsingProtocolManagerHelper::ComposeUrl(
url_prefix_, "report", client_name_, version_, std::string());
std::string threat_list = "none";
switch (threat_type) {
case SB_THREAT_TYPE_URL_MALWARE:
threat_list = "malblhit";
break;
case SB_THREAT_TYPE_URL_PHISHING:
threat_list = "phishblhit";
break;
case SB_THREAT_TYPE_URL_UNWANTED:
threat_list = "uwsblhit";
break;
case SB_THREAT_TYPE_BINARY_MALWARE_URL:
threat_list = "binurlhit";
break;
case SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL:
threat_list = "phishcsdhit";
break;
case SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL:
threat_list = "malcsdhit";
break;
default:
NOTREACHED();
}
return GURL(base::StringPrintf("%s&evts=%s&evtd=%s&evtr=%s&evhr=%s&evtb=%d",
url.c_str(), threat_list.c_str(),
net::EscapeQueryParamValue(malicious_url.spec(), true).c_str(),
net::EscapeQueryParamValue(page_url.spec(), true).c_str(),
net::EscapeQueryParamValue(referrer_url.spec(), true).c_str(),
is_subresource));
}
GURL SafeBrowsingPingManager::MalwareDetailsUrl() const {
std::string url = base::StringPrintf(
"%s/clientreport/malware?client=%s&appver=%s&pver=1.0",
url_prefix_.c_str(),
client_name_.c_str(),
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);
}
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