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/browser/net/certificate_error_reporter.h"
  12 #include "chrome/common/env_vars.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/url_fetcher.h"
  19 #include "net/url_request/url_request_context_getter.h"
  20 #include "net/url_request/url_request_status.h"
  21 #include "url/gurl.h"
  22
  23 using chrome_browser_net::CertificateErrorReporter;
  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         CertificateErrorReporter::IsHttpUploadUrlSupported();
  60
  61     CertificateErrorReporter::CookiesPreference cookies_preference;
  62     GURL certificate_upload_url;
  63     if (use_insecure_certificate_upload_url) {
  64       cookies_preference = CertificateErrorReporter::DO_NOT_SEND_COOKIES;
  65       certificate_upload_url = GURL(kExtendedReportingUploadUrlInsecure);
  66     } else {
  67       cookies_preference = CertificateErrorReporter::SEND_COOKIES;
  68       certificate_upload_url = GURL(kExtendedReportingUploadUrlSecure);
  69     }
  70
  71     certificate_error_reporter_.reset(new CertificateErrorReporter(
  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   GURL report_url = SafeBrowsingHitUrl(malicious_url, page_url,
 105                                        referrer_url, is_subresource,
 106                                        threat_type);
 107   net::URLFetcher* report =
 108       net::URLFetcher::Create(
 109           report_url,
 110           post_data.empty() ? net::URLFetcher::GET : net::URLFetcher::POST,
 111           this).release();
 112   report->SetLoadFlags(net::LOAD_DISABLE_CACHE);
 113   report->SetRequestContext(request_context_getter_.get());
 114   if (!post_data.empty())
 115     report->SetUploadData("text/plain", post_data);
 116   safebrowsing_reports_.insert(report);
 117   report->Start();
 118 }
 119
 120 // Sends malware details for users who opt-in.
 121 void SafeBrowsingPingManager::ReportMalwareDetails(
 122     const std::string& report) {
 123   GURL report_url = MalwareDetailsUrl();
 124   net::URLFetcher* fetcher =
 125       net::URLFetcher::Create(report_url, net::URLFetcher::POST, this)
 126           .release();
 127   fetcher->SetLoadFlags(net::LOAD_DISABLE_CACHE);
 128   fetcher->SetRequestContext(request_context_getter_.get());
 129   fetcher->SetUploadData("application/octet-stream", report);
 130   // Don't try too hard to send reports on failures.
 131   fetcher->SetAutomaticallyRetryOn5xx(false);
 132   fetcher->Start();
 133   safebrowsing_reports_.insert(fetcher);
 134 }
 135
 136 void SafeBrowsingPingManager::ReportInvalidCertificateChain(
 137     const std::string& serialized_report) {
 138   DCHECK(certificate_error_reporter_);
 139   certificate_error_reporter_->SendReport(
 140       CertificateErrorReporter::REPORT_TYPE_EXTENDED_REPORTING,
 141       serialized_report);
 142 }
 143
 144 void SafeBrowsingPingManager::SetCertificateErrorReporterForTesting(
 145     scoped_ptr<CertificateErrorReporter> certificate_error_reporter) {
 146   certificate_error_reporter_ = certificate_error_reporter.Pass();
 147 }
 148
 149 GURL SafeBrowsingPingManager::SafeBrowsingHitUrl(
 150     const GURL& malicious_url, const GURL& page_url,
 151     const GURL& referrer_url, bool is_subresource,
 152     SBThreatType threat_type) const {
 153   DCHECK(threat_type == SB_THREAT_TYPE_URL_MALWARE ||
 154          threat_type == SB_THREAT_TYPE_URL_PHISHING ||
 155          threat_type == SB_THREAT_TYPE_URL_UNWANTED ||
 156          threat_type == SB_THREAT_TYPE_BINARY_MALWARE_URL ||
 157          threat_type == SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL ||
 158          threat_type == SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL);
 159   std::string url = SafeBrowsingProtocolManagerHelper::ComposeUrl(
 160       url_prefix_, "report", client_name_, version_, std::string());
 161   std::string threat_list = "none";
 162   switch (threat_type) {
 163     case SB_THREAT_TYPE_URL_MALWARE:
 164       threat_list = "malblhit";
 165       break;
 166     case SB_THREAT_TYPE_URL_PHISHING:
 167       threat_list = "phishblhit";
 168       break;
 169     case SB_THREAT_TYPE_URL_UNWANTED:
 170       threat_list = "uwsblhit";
 171       break;
 172     case SB_THREAT_TYPE_BINARY_MALWARE_URL:
 173       threat_list = "binurlhit";
 174       break;
 175     case SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL:
 176       threat_list = "phishcsdhit";
 177       break;
 178     case SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL:
 179       threat_list = "malcsdhit";
 180       break;
 181     default:
 182       NOTREACHED();
 183   }
 184   return GURL(base::StringPrintf("%s&evts=%s&evtd=%s&evtr=%s&evhr=%s&evtb=%d",
 185       url.c_str(), threat_list.c_str(),
 186       net::EscapeQueryParamValue(malicious_url.spec(), true).c_str(),
 187       net::EscapeQueryParamValue(page_url.spec(), true).c_str(),
 188       net::EscapeQueryParamValue(referrer_url.spec(), true).c_str(),
 189       is_subresource));
 190 }
 191
 192 GURL SafeBrowsingPingManager::MalwareDetailsUrl() const {
 193   std::string url = base::StringPrintf(
 194           "%s/clientreport/malware?client=%s&appver=%s&pver=1.0",
 195           url_prefix_.c_str(),
 196           client_name_.c_str(),
 197           version_.c_str());
 198   std::string api_key = google_apis::GetAPIKey();
 199   if (!api_key.empty()) {
 200     base::StringAppendF(&url, "&key=%s",
 201                         net::EscapeQueryParamValue(api_key, true).c_str());
 202   }
 203   return GURL(url);
 204 }