chrome/browser/safe_browsing/malware_details_history.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 // Implementation of the MalwareDetailsRedirectsCollector class.
   6
   7 #include "chrome/browser/safe_browsing/malware_details_history.h"
   8
   9 #include "base/bind.h"
  10 #include "base/bind_helpers.h"
  11 #include "chrome/browser/chrome_notification_types.h"
  12 #include "chrome/browser/history/history_service_factory.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "chrome/browser/safe_browsing/malware_details.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "content/public/browser/notification_details.h"
  17 #include "content/public/browser/notification_source.h"
  18 #include "content/public/browser/render_view_host.h"
  19 #include "content/public/browser/web_contents.h"
  20
  21 using content::BrowserThread;
  22
  23 MalwareDetailsRedirectsCollector::MalwareDetailsRedirectsCollector(
  24     Profile* profile)
  25     : profile_(profile),
  26       has_started_(false) {
  27   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  28   if (profile) {
  29     registrar_.Add(this, chrome::NOTIFICATION_PROFILE_DESTROYED,
  30                    content::Source<Profile>(profile));
  31   }
  32 }
  33
  34 void MalwareDetailsRedirectsCollector::StartHistoryCollection(
  35     const std::vector<GURL>& urls,
  36     const base::Closure& callback) {
  37   DVLOG(1) << "Num of urls to check in history service: " << urls.size();
  38   has_started_ = true;
  39   callback_ = callback;
  40
  41   if (urls.size() == 0) {
  42     AllDone();
  43     return;
  44   }
  45
  46   BrowserThread::PostTask(
  47       BrowserThread::UI, FROM_HERE,
  48       base::Bind(&MalwareDetailsRedirectsCollector::StartGetRedirects,
  49                  this, urls));
  50 }
  51
  52 bool MalwareDetailsRedirectsCollector::HasStarted() const {
  53   return has_started_;
  54 }
  55
  56 const std::vector<safe_browsing::RedirectChain>&
  57 MalwareDetailsRedirectsCollector::GetCollectedUrls() const {
  58   return redirects_urls_;
  59 }
  60
  61 void MalwareDetailsRedirectsCollector::Observe(
  62     int type,
  63     const content::NotificationSource& source,
  64     const content::NotificationDetails& details) {
  65   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  66   DCHECK_EQ(type, chrome::NOTIFICATION_PROFILE_DESTROYED);
  67   DVLOG(1) << "Profile gone.";
  68   profile_ = NULL;
  69 }
  70
  71 MalwareDetailsRedirectsCollector::~MalwareDetailsRedirectsCollector() {}
  72
  73 void MalwareDetailsRedirectsCollector::StartGetRedirects(
  74         const std::vector<GURL>& urls) {
  75   // History access from profile needs to happen in UI thread
  76   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  77   for (size_t i = 0; i < urls.size(); ++i) {
  78     urls_.push_back(urls[i]);
  79   }
  80   urls_it_ = urls_.begin();
  81   GetRedirects(*urls_it_);
  82 }
  83
  84 void MalwareDetailsRedirectsCollector::GetRedirects(const GURL& url) {
  85   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  86   if (!profile_) {
  87     AllDone();
  88     return;
  89   }
  90
  91   HistoryService* history = HistoryServiceFactory::GetForProfile(
  92       profile_, Profile::EXPLICIT_ACCESS);
  93   if (!history) {
  94     AllDone();
  95     return;
  96   }
  97
  98   history->QueryRedirectsTo(
  99       url,
 100       base::Bind(&MalwareDetailsRedirectsCollector::OnGotQueryRedirectsTo,
 101                  base::Unretained(this),
 102                  url),
 103       &request_tracker_);
 104 }
 105
 106 void MalwareDetailsRedirectsCollector::OnGotQueryRedirectsTo(
 107     const GURL& url,
 108     const history::RedirectList* redirect_list) {
 109   if (!redirect_list->empty()) {
 110     std::vector<GURL> urllist;
 111     urllist.push_back(url);
 112     urllist.insert(urllist.end(), redirect_list->begin(), redirect_list->end());
 113     redirects_urls_.push_back(urllist);
 114   }
 115
 116   // Proceed to next url
 117   ++urls_it_;
 118
 119   if (urls_it_ == urls_.end()) {
 120     AllDone();
 121     return;
 122   }
 123
 124   GetRedirects(*urls_it_);
 125 }
 126
 127 void MalwareDetailsRedirectsCollector::AllDone() {
 128   DVLOG(1) << "AllDone";
 129   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, callback_);
 130   callback_.Reset();
 131 }