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// Copyright 2015 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 "ios/chrome/browser/safe_browsing/ping_manager.h"
#include <utility>
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "components/certificate_reporting/error_reporter.h"
#include "google_apis/google_api_keys.h"
#include "ios/web/public/web_thread.h"
#include "net/base/escape.h"
#include "net/base/load_flags.h"
#include "net/ssl/ssl_info.h"
#include "net/url_request/certificate_report_sender.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"
#include "url/gurl.h"
namespace {
// URLs to upload invalid certificate chain reports. The HTTP URL is
// preferred since a client seeing an invalid cert might not be able to
// make an HTTPS connection to report it.
const char kExtendedReportingUploadUrlInsecure[] =
"http://safebrowsing.googleusercontent.com/safebrowsing/clientreport/"
"chrome-certs";
const char kExtendedReportingUploadUrlSecure[] =
"https://sb-ssl.google.com/safebrowsing/clientreport/chrome-certs";
} // namespace
namespace safe_browsing {
// SafeBrowsingPingManager implementation ----------------------------------
// static
SafeBrowsingPingManager* SafeBrowsingPingManager::Create(
net::URLRequestContextGetter* request_context_getter,
const SafeBrowsingProtocolConfig& config) {
DCHECK_CURRENTLY_ON(web::WebThread::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());
if (request_context_getter) {
// Set the upload URL and whether or not to send cookies with
// certificate reports sent to Safe Browsing servers.
bool use_insecure_certificate_upload_url =
certificate_reporting::ErrorReporter::IsHttpUploadUrlSupported();
net::CertificateReportSender::CookiesPreference cookies_preference;
GURL certificate_upload_url;
if (use_insecure_certificate_upload_url) {
cookies_preference = net::CertificateReportSender::DO_NOT_SEND_COOKIES;
certificate_upload_url = GURL(kExtendedReportingUploadUrlInsecure);
} else {
cookies_preference = net::CertificateReportSender::SEND_COOKIES;
certificate_upload_url = GURL(kExtendedReportingUploadUrlSecure);
}
certificate_error_reporter_.reset(new certificate_reporting::ErrorReporter(
request_context_getter->GetURLRequestContext(), certificate_upload_url,
cookies_preference));
}
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" report.
void SafeBrowsingPingManager::ReportSafeBrowsingHit(
const safe_browsing::HitReport& hit_report) {
GURL report_url = SafeBrowsingHitUrl(hit_report);
net::URLFetcher* report =
net::URLFetcher::Create(report_url, hit_report.post_data.empty()
? net::URLFetcher::GET
: net::URLFetcher::POST,
this)
.release();
report->SetLoadFlags(net::LOAD_DISABLE_CACHE);
report->SetRequestContext(request_context_getter_.get());
if (!hit_report.post_data.empty())
report->SetUploadData("text/plain", hit_report.post_data);
safebrowsing_reports_.insert(report);
report->Start();
}
// Sends threat details for users who opt-in.
void SafeBrowsingPingManager::ReportThreatDetails(const std::string& report) {
GURL report_url = ThreatDetailsUrl();
net::URLFetcher* fetcher =
net::URLFetcher::Create(report_url, net::URLFetcher::POST, this)
.release();
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);
}
void SafeBrowsingPingManager::ReportInvalidCertificateChain(
const std::string& serialized_report) {
DCHECK(certificate_error_reporter_);
certificate_error_reporter_->SendExtendedReportingReport(serialized_report);
}
void SafeBrowsingPingManager::SetCertificateErrorReporterForTesting(
scoped_ptr<certificate_reporting::ErrorReporter>
certificate_error_reporter) {
certificate_error_reporter_ = std::move(certificate_error_reporter);
}
GURL SafeBrowsingPingManager::SafeBrowsingHitUrl(
const safe_browsing::HitReport& hit_report) const {
DCHECK(hit_report.threat_type == SB_THREAT_TYPE_URL_MALWARE ||
hit_report.threat_type == SB_THREAT_TYPE_URL_PHISHING ||
hit_report.threat_type == SB_THREAT_TYPE_URL_UNWANTED ||
hit_report.threat_type == SB_THREAT_TYPE_BINARY_MALWARE_URL ||
hit_report.threat_type == SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL ||
hit_report.threat_type == SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL);
std::string url = SafeBrowsingProtocolManagerHelper::ComposeUrl(
url_prefix_, "report", client_name_, version_, std::string(),
hit_report.is_extended_reporting);
std::string threat_list = "none";
switch (hit_report.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();
}
std::string threat_source = "none";
switch (hit_report.threat_source) {
case safe_browsing::ThreatSource::DATA_SAVER:
threat_source = "ds";
break;
case safe_browsing::ThreatSource::REMOTE:
threat_source = "rem";
break;
case safe_browsing::ThreatSource::LOCAL_PVER3:
threat_source = "l3";
break;
case safe_browsing::ThreatSource::LOCAL_PVER4:
threat_source = "l4";
break;
case safe_browsing::ThreatSource::UNKNOWN:
NOTREACHED();
}
return GURL(base::StringPrintf(
"%s&evts=%s&evtd=%s&evtr=%s&evhr=%s&evtb=%d&src=%s&m=%d", url.c_str(),
threat_list.c_str(),
net::EscapeQueryParamValue(hit_report.malicious_url.spec(), true).c_str(),
net::EscapeQueryParamValue(hit_report.page_url.spec(), true).c_str(),
net::EscapeQueryParamValue(hit_report.referrer_url.spec(), true).c_str(),
hit_report.is_subresource, threat_source.c_str(),
hit_report.is_metrics_reporting_active));
}
GURL SafeBrowsingPingManager::ThreatDetailsUrl() 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);
}
} // namespace safe_browsing
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