src/chrome/browser/browsing_data/browsing_data_appcache_helper.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/browsing_data/browsing_data_appcache_helper.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/common/url_constants.h"
  12 #include "content/public/browser/browser_context.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "content/public/browser/storage_partition.h"
  15 #include "webkit/browser/appcache/appcache_database.h"
  16 #include "webkit/browser/appcache/appcache_storage.h"
  17
  18 using content::BrowserThread;
  19 using content::BrowserContext;
  20
  21 BrowsingDataAppCacheHelper::BrowsingDataAppCacheHelper(Profile* profile)
  22     : is_fetching_(false),
  23       appcache_service_(BrowserContext::GetDefaultStoragePartition(profile)->
  24                             GetAppCacheService()) {
  25 }
  26
  27 void BrowsingDataAppCacheHelper::StartFetching(const base::Closure& callback) {
  28   if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
  29     DCHECK(!is_fetching_);
  30     DCHECK_EQ(false, callback.is_null());
  31     is_fetching_ = true;
  32     info_collection_ = new appcache::AppCacheInfoCollection;
  33     completion_callback_ = callback;
  34     BrowserThread::PostTask(
  35         BrowserThread::IO, FROM_HERE,
  36         base::Bind(&BrowsingDataAppCacheHelper::StartFetching, this, callback));
  37     return;
  38   }
  39
  40   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  41   appcache_info_callback_.Reset(
  42       base::Bind(&BrowsingDataAppCacheHelper::OnFetchComplete,
  43                  base::Unretained(this)));
  44   appcache_service_->GetAllAppCacheInfo(info_collection_.get(),
  45                                         appcache_info_callback_.callback());
  46 }
  47
  48 void BrowsingDataAppCacheHelper::DeleteAppCacheGroup(
  49     const GURL& manifest_url) {
  50   if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
  51     BrowserThread::PostTask(
  52         BrowserThread::IO, FROM_HERE,
  53         base::Bind(&BrowsingDataAppCacheHelper::DeleteAppCacheGroup, this,
  54                    manifest_url));
  55     return;
  56   }
  57
  58   appcache_service_->DeleteAppCacheGroup(manifest_url,
  59                                          net::CompletionCallback());
  60 }
  61
  62 BrowsingDataAppCacheHelper::~BrowsingDataAppCacheHelper() {}
  63
  64 void BrowsingDataAppCacheHelper::OnFetchComplete(int rv) {
  65   if (BrowserThread::CurrentlyOn(BrowserThread::IO)) {
  66     // Filter out appcache info entries for non-websafe schemes. Extension state
  67     // and DevTools, for example, are not considered browsing data.
  68     typedef std::map<GURL, appcache::AppCacheInfoVector> InfoByOrigin;
  69     InfoByOrigin& origin_map = info_collection_->infos_by_origin;
  70     for (InfoByOrigin::iterator origin = origin_map.begin();
  71          origin != origin_map.end();) {
  72       InfoByOrigin::iterator current = origin;
  73       ++origin;
  74       if (!BrowsingDataHelper::HasWebScheme(current->first))
  75         origin_map.erase(current);
  76     }
  77
  78     BrowserThread::PostTask(
  79         BrowserThread::UI, FROM_HERE,
  80         base::Bind(&BrowsingDataAppCacheHelper::OnFetchComplete, this, rv));
  81     return;
  82   }
  83
  84   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  85   DCHECK(is_fetching_);
  86   is_fetching_ = false;
  87   completion_callback_.Run();
  88   completion_callback_.Reset();
  89 }
  90
  91 CannedBrowsingDataAppCacheHelper::CannedBrowsingDataAppCacheHelper(
  92     Profile* profile)
  93     : BrowsingDataAppCacheHelper(profile),
  94       profile_(profile) {
  95   info_collection_ = new appcache::AppCacheInfoCollection;
  96 }
  97
  98 CannedBrowsingDataAppCacheHelper* CannedBrowsingDataAppCacheHelper::Clone() {
  99   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 100   CannedBrowsingDataAppCacheHelper* clone =
 101       new CannedBrowsingDataAppCacheHelper(profile_);
 102
 103   clone->info_collection_->infos_by_origin = info_collection_->infos_by_origin;
 104   return clone;
 105 }
 106
 107 void CannedBrowsingDataAppCacheHelper::AddAppCache(const GURL& manifest_url) {
 108   if (!BrowsingDataHelper::HasWebScheme(manifest_url))
 109     return;  // Ignore non-websafe schemes.
 110
 111   OriginAppCacheInfoMap& origin_map = info_collection_->infos_by_origin;
 112   appcache::AppCacheInfoVector& appcache_infos_ =
 113       origin_map[manifest_url.GetOrigin()];
 114
 115   for (appcache::AppCacheInfoVector::iterator
 116        appcache = appcache_infos_.begin(); appcache != appcache_infos_.end();
 117        ++appcache) {
 118     if (appcache->manifest_url == manifest_url)
 119       return;
 120   }
 121
 122   appcache::AppCacheInfo info;
 123   info.manifest_url = manifest_url;
 124   appcache_infos_.push_back(info);
 125 }
 126
 127 void CannedBrowsingDataAppCacheHelper::Reset() {
 128   info_collection_->infos_by_origin.clear();
 129 }
 130
 131 bool CannedBrowsingDataAppCacheHelper::empty() const {
 132   return info_collection_->infos_by_origin.empty();
 133 }
 134
 135 size_t CannedBrowsingDataAppCacheHelper::GetAppCacheCount() const {
 136   size_t count = 0;
 137   const OriginAppCacheInfoMap& map = info_collection_->infos_by_origin;
 138   for (OriginAppCacheInfoMap::const_iterator it = map.begin();
 139        it != map.end();
 140        ++it) {
 141     count += it->second.size();
 142   }
 143   return count;
 144 }
 145
 146 const BrowsingDataAppCacheHelper::OriginAppCacheInfoMap&
 147 CannedBrowsingDataAppCacheHelper::GetOriginAppCacheInfoMap() const {
 148   return info_collection_->infos_by_origin;
 149 }
 150
 151 void CannedBrowsingDataAppCacheHelper::StartFetching(
 152     const base::Closure& completion_callback) {
 153   completion_callback.Run();
 154 }
 155
 156 CannedBrowsingDataAppCacheHelper::~CannedBrowsingDataAppCacheHelper() {}