chrome/browser/safe_browsing/ping_manager.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/safe_browsing/ping_manager.h"
   6
   7 #include "base/logging.h"
   8 #include "base/stl_util.h"
   9 #include "base/strings/string_util.h"
  10 #include "base/strings/stringprintf.h"
  11 #include "chrome/common/env_vars.h"
  12 #include "components/certificate_reporting/error_reporter.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "google_apis/google_api_keys.h"
  15 #include "net/base/escape.h"
  16 #include "net/base/load_flags.h"
  17 #include "net/ssl/ssl_info.h"
  18 #include "net/url_request/certificate_report_sender.h"
  19 #include "net/url_request/url_fetcher.h"
  20 #include "net/url_request/url_request_context_getter.h"
  21 #include "net/url_request/url_request_status.h"
  22 #include "url/gurl.h"
  23
  24 using content::BrowserThread;
  25
  26 namespace {
  27 // URLs to upload invalid certificate chain reports. The HTTP URL is
  28 // preferred since a client seeing an invalid cert might not be able to
  29 // make an HTTPS connection to report it.
  30 const char kExtendedReportingUploadUrlInsecure[] =
  31     "http://safebrowsing.googleusercontent.com/safebrowsing/clientreport/"
  32     "chrome-certs";
  33 const char kExtendedReportingUploadUrlSecure[] =
  34     "https://sb-ssl.google.com/safebrowsing/clientreport/chrome-certs";
  35 }  // namespace
  36
  37 // SafeBrowsingPingManager implementation ----------------------------------
  38
  39 // static
  40 SafeBrowsingPingManager* SafeBrowsingPingManager::Create(
  41     net::URLRequestContextGetter* request_context_getter,
  42     const SafeBrowsingProtocolConfig& config) {
  43   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  44   return new SafeBrowsingPingManager(request_context_getter, config);
  45 }
  46
  47 SafeBrowsingPingManager::SafeBrowsingPingManager(
  48     net::URLRequestContextGetter* request_context_getter,
  49     const SafeBrowsingProtocolConfig& config)
  50     : client_name_(config.client_name),
  51       request_context_getter_(request_context_getter),
  52       url_prefix_(config.url_prefix) {
  53   DCHECK(!url_prefix_.empty());
  54
  55   if (request_context_getter) {
  56     // Set the upload URL and whether or not to send cookies with
  57     // certificate reports sent to Safe Browsing servers.
  58     bool use_insecure_certificate_upload_url =
  59         certificate_reporting::ErrorReporter::IsHttpUploadUrlSupported();
  60
  61     net::CertificateReportSender::CookiesPreference cookies_preference;
  62     GURL certificate_upload_url;
  63     if (use_insecure_certificate_upload_url) {
  64       cookies_preference = net::CertificateReportSender::DO_NOT_SEND_COOKIES;
  65       certificate_upload_url = GURL(kExtendedReportingUploadUrlInsecure);
  66     } else {
  67       cookies_preference = net::CertificateReportSender::SEND_COOKIES;
  68       certificate_upload_url = GURL(kExtendedReportingUploadUrlSecure);
  69     }
  70
  71     certificate_error_reporter_.reset(new certificate_reporting::ErrorReporter(
  72         request_context_getter->GetURLRequestContext(), certificate_upload_url,
  73         cookies_preference));
  74   }
  75
  76   version_ = SafeBrowsingProtocolManagerHelper::Version();
  77 }
  78
  79 SafeBrowsingPingManager::~SafeBrowsingPingManager() {
  80   // Delete in-progress safebrowsing reports (hits and details).
  81   STLDeleteContainerPointers(safebrowsing_reports_.begin(),
  82                              safebrowsing_reports_.end());
  83 }
  84
  85 // net::URLFetcherDelegate implementation ----------------------------------
  86
  87 // All SafeBrowsing request responses are handled here.
  88 void SafeBrowsingPingManager::OnURLFetchComplete(
  89     const net::URLFetcher* source) {
  90   Reports::iterator sit = safebrowsing_reports_.find(source);
  91   DCHECK(sit != safebrowsing_reports_.end());
  92   delete *sit;
  93   safebrowsing_reports_.erase(sit);
  94 }
  95
  96 // Sends a SafeBrowsing "hit" for UMA users.
  97 void SafeBrowsingPingManager::ReportSafeBrowsingHit(
  98     const GURL& malicious_url,
  99     const GURL& page_url,
 100     const GURL& referrer_url,
 101     bool is_subresource,
 102     SBThreatType threat_type,
 103     const std::string& post_data,
 104     bool is_extended_reporting) {
 105   GURL report_url =
 106       SafeBrowsingHitUrl(malicious_url, page_url, referrer_url, is_subresource,
 107                          threat_type, is_extended_reporting);
 108   net::URLFetcher* report =
 109       net::URLFetcher::Create(
 110           report_url,
 111           post_data.empty() ? net::URLFetcher::GET : net::URLFetcher::POST,
 112           this).release();
 113   report->SetLoadFlags(net::LOAD_DISABLE_CACHE);
 114   report->SetRequestContext(request_context_getter_.get());
 115   if (!post_data.empty())
 116     report->SetUploadData("text/plain", post_data);
 117   safebrowsing_reports_.insert(report);
 118   report->Start();
 119 }
 120
 121 // Sends malware details for users who opt-in.
 122 void SafeBrowsingPingManager::ReportMalwareDetails(
 123     const std::string& report) {
 124   GURL report_url = MalwareDetailsUrl();
 125   net::URLFetcher* fetcher =
 126       net::URLFetcher::Create(report_url, net::URLFetcher::POST, this)
 127           .release();
 128   fetcher->SetLoadFlags(net::LOAD_DISABLE_CACHE);
 129   fetcher->SetRequestContext(request_context_getter_.get());
 130   fetcher->SetUploadData("application/octet-stream", report);
 131   // Don't try too hard to send reports on failures.
 132   fetcher->SetAutomaticallyRetryOn5xx(false);
 133   fetcher->Start();
 134   safebrowsing_reports_.insert(fetcher);
 135 }
 136
 137 void SafeBrowsingPingManager::ReportInvalidCertificateChain(
 138     const std::string& serialized_report) {
 139   DCHECK(certificate_error_reporter_);
 140   certificate_error_reporter_->SendExtendedReportingReport(serialized_report);
 141 }
 142
 143 void SafeBrowsingPingManager::SetCertificateErrorReporterForTesting(
 144     scoped_ptr<certificate_reporting::ErrorReporter>
 145         certificate_error_reporter) {
 146   certificate_error_reporter_ = certificate_error_reporter.Pass();
 147 }
 148
 149 GURL SafeBrowsingPingManager::SafeBrowsingHitUrl(
 150     const GURL& malicious_url,
 151     const GURL& page_url,
 152     const GURL& referrer_url,
 153     bool is_subresource,
 154     SBThreatType threat_type,
 155     bool is_extended_reporting) const {
 156   DCHECK(threat_type == SB_THREAT_TYPE_URL_MALWARE ||
 157          threat_type == SB_THREAT_TYPE_URL_PHISHING ||
 158          threat_type == SB_THREAT_TYPE_URL_UNWANTED ||
 159          threat_type == SB_THREAT_TYPE_BINARY_MALWARE_URL ||
 160          threat_type == SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL ||
 161          threat_type == SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL);
 162   std::string url = SafeBrowsingProtocolManagerHelper::ComposeUrl(
 163       url_prefix_, "report", client_name_, version_, std::string(),
 164       is_extended_reporting);
 165   std::string threat_list = "none";
 166   switch (threat_type) {
 167     case SB_THREAT_TYPE_URL_MALWARE:
 168       threat_list = "malblhit";
 169       break;
 170     case SB_THREAT_TYPE_URL_PHISHING:
 171       threat_list = "phishblhit";
 172       break;
 173     case SB_THREAT_TYPE_URL_UNWANTED:
 174       threat_list = "uwsblhit";
 175       break;
 176     case SB_THREAT_TYPE_BINARY_MALWARE_URL:
 177       threat_list = "binurlhit";
 178       break;
 179     case SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL:
 180       threat_list = "phishcsdhit";
 181       break;
 182     case SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL:
 183       threat_list = "malcsdhit";
 184       break;
 185     default:
 186       NOTREACHED();
 187   }
 188   return GURL(base::StringPrintf("%s&evts=%s&evtd=%s&evtr=%s&evhr=%s&evtb=%d",
 189       url.c_str(), threat_list.c_str(),
 190       net::EscapeQueryParamValue(malicious_url.spec(), true).c_str(),
 191       net::EscapeQueryParamValue(page_url.spec(), true).c_str(),
 192       net::EscapeQueryParamValue(referrer_url.spec(), true).c_str(),
 193       is_subresource));
 194 }
 195
 196 GURL SafeBrowsingPingManager::MalwareDetailsUrl() const {
 197   std::string url = base::StringPrintf(
 198           "%s/clientreport/malware?client=%s&appver=%s&pver=1.0",
 199           url_prefix_.c_str(),
 200           client_name_.c_str(),
 201           version_.c_str());
 202   std::string api_key = google_apis::GetAPIKey();
 203   if (!api_key.empty()) {
 204     base::StringAppendF(&url, "&key=%s",
 205                         net::EscapeQueryParamValue(api_key, true).c_str());
 206   }
 207   return GURL(url);
 208 }