| // Copyright (c) 2012 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 "components/history/core/browser/history_backend.h" |
| |
| #include <algorithm> |
| #include <functional> |
| #include <list> |
| #include <map> |
| #include <set> |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/bind.h" |
| #include "base/compiler_specific.h" |
| #include "base/files/file_enumerator.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/scoped_vector.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/rand_util.h" |
| #include "base/sequenced_task_runner.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/time/time.h" |
| #include "components/favicon_base/select_favicon_frames.h" |
| #include "components/history/core/browser/download_constants.h" |
| #include "components/history/core/browser/download_row.h" |
| #include "components/history/core/browser/history_backend_client.h" |
| #include "components/history/core/browser/history_backend_observer.h" |
| #include "components/history/core/browser/history_constants.h" |
| #include "components/history/core/browser/history_database.h" |
| #include "components/history/core/browser/history_database_params.h" |
| #include "components/history/core/browser/history_db_task.h" |
| #include "components/history/core/browser/in_memory_history_backend.h" |
| #include "components/history/core/browser/keyword_search_term.h" |
| #include "components/history/core/browser/page_usage_data.h" |
| #include "components/history/core/browser/typed_url_syncable_service.h" |
| #include "components/history/core/browser/url_utils.h" |
| #include "components/history/core/browser/visit_filter.h" |
| #include "net/base/registry_controlled_domains/registry_controlled_domain.h" |
| #include "sql/error_delegate_util.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "ui/gfx/codec/png_codec.h" |
| #include "url/gurl.h" |
| #include "url/url_constants.h" |
| |
| #if defined(OS_IOS) |
| #include "base/ios/scoped_critical_action.h" |
| #endif |
| |
| using base::Time; |
| using base::TimeDelta; |
| using base::TimeTicks; |
| |
| /* The HistoryBackend consists of two components: |
| |
| HistoryDatabase (stores past 3 months of history) |
| URLDatabase (stores a list of URLs) |
| DownloadDatabase (stores a list of downloads) |
| VisitDatabase (stores a list of visits for the URLs) |
| VisitSegmentDatabase (stores groups of URLs for the most visited view). |
| |
| ExpireHistoryBackend (manages deleting things older than 3 months) |
| */ |
| |
| namespace history { |
| |
| namespace { |
| void RunUnlessCanceled( |
| const base::Closure& closure, |
| const base::CancelableTaskTracker::IsCanceledCallback& is_canceled) { |
| if (!is_canceled.Run()) |
| closure.Run(); |
| } |
| } // namespace |
| |
| // How long we'll wait to do a commit, so that things are batched together. |
| const int kCommitIntervalSeconds = 10; |
| |
| // The amount of time before we re-fetch the favicon. |
| const int kFaviconRefetchDays = 7; |
| |
| // The maximum number of items we'll allow in the redirect list before |
| // deleting some. |
| const int kMaxRedirectCount = 32; |
| |
| // The number of days old a history entry can be before it is considered "old" |
| // and is deleted. |
| const int kExpireDaysThreshold = 90; |
| |
| // Converts from PageUsageData to MostVisitedURL. |redirects| is a |
| // list of redirects for this URL. Empty list means no redirects. |
| MostVisitedURL MakeMostVisitedURL(const PageUsageData& page_data, |
| const RedirectList& redirects) { |
| MostVisitedURL mv; |
| mv.url = page_data.GetURL(); |
| mv.title = page_data.GetTitle(); |
| if (redirects.empty()) { |
| // Redirects must contain at least the target url. |
| mv.redirects.push_back(mv.url); |
| } else { |
| mv.redirects = redirects; |
| if (mv.redirects[mv.redirects.size() - 1] != mv.url) { |
| // The last url must be the target url. |
| mv.redirects.push_back(mv.url); |
| } |
| } |
| return mv; |
| } |
| |
| // This task is run on a timer so that commits happen at regular intervals |
| // so they are batched together. The important thing about this class is that |
| // it supports canceling of the task so the reference to the backend will be |
| // freed. The problem is that when history is shutting down, there is likely |
| // to be one of these commits still pending and holding a reference. |
| // |
| // The backend can call Cancel to have this task release the reference. The |
| // task will still run (if we ever get to processing the event before |
| // shutdown), but it will not do anything. |
| // |
| // Note that this is a refcounted object and is not a task in itself. It should |
| // be assigned to a RunnableMethod. |
| // |
| // TODO(brettw): bug 1165182: This should be replaced with a |
| // base::WeakPtrFactory which will handle everything automatically (like we do |
| // in ExpireHistoryBackend). |
| class CommitLaterTask : public base::RefCounted<CommitLaterTask> { |
| public: |
| explicit CommitLaterTask(HistoryBackend* history_backend) |
| : history_backend_(history_backend) {} |
| |
| // The backend will call this function if it is being destroyed so that we |
| // release our reference. |
| void Cancel() { history_backend_ = nullptr; } |
| |
| void RunCommit() { |
| if (history_backend_) |
| history_backend_->Commit(); |
| } |
| |
| private: |
| friend class base::RefCounted<CommitLaterTask>; |
| |
| ~CommitLaterTask() {} |
| |
| scoped_refptr<HistoryBackend> history_backend_; |
| }; |
| |
| QueuedHistoryDBTask::QueuedHistoryDBTask( |
| scoped_ptr<HistoryDBTask> task, |
| scoped_refptr<base::SingleThreadTaskRunner> origin_loop, |
| const base::CancelableTaskTracker::IsCanceledCallback& is_canceled) |
| : task_(task.Pass()), origin_loop_(origin_loop), is_canceled_(is_canceled) { |
| DCHECK(task_); |
| DCHECK(origin_loop_); |
| DCHECK(!is_canceled_.is_null()); |
| } |
| |
| QueuedHistoryDBTask::~QueuedHistoryDBTask() { |
| // Ensure that |task_| is destroyed on its origin thread. |
| origin_loop_->PostTask(FROM_HERE, |
| base::Bind(&base::DeletePointer<HistoryDBTask>, |
| base::Unretained(task_.release()))); |
| } |
| |
| bool QueuedHistoryDBTask::is_canceled() { |
| return is_canceled_.Run(); |
| } |
| |
| bool QueuedHistoryDBTask::Run(HistoryBackend* backend, HistoryDatabase* db) { |
| return task_->RunOnDBThread(backend, db); |
| } |
| |
| void QueuedHistoryDBTask::DoneRun() { |
| origin_loop_->PostTask( |
| FROM_HERE, base::Bind(&RunUnlessCanceled, |
| base::Bind(&HistoryDBTask::DoneRunOnMainThread, |
| base::Unretained(task_.get())), |
| is_canceled_)); |
| } |
| |
| // HistoryBackendHelper -------------------------------------------------------- |
| |
| // Wrapper around base::SupportsUserData with a public destructor. |
| class HistoryBackendHelper : public base::SupportsUserData { |
| public: |
| HistoryBackendHelper(); |
| ~HistoryBackendHelper() override; |
| }; |
| |
| HistoryBackendHelper::HistoryBackendHelper() { |
| } |
| |
| HistoryBackendHelper::~HistoryBackendHelper() { |
| } |
| |
| // HistoryBackend -------------------------------------------------------------- |
| |
| HistoryBackend::HistoryBackend( |
| Delegate* delegate, |
| scoped_ptr<HistoryBackendClient> backend_client, |
| scoped_refptr<base::SequencedTaskRunner> task_runner) |
| : delegate_(delegate), |
| scheduled_kill_db_(false), |
| expirer_(this, backend_client.get(), task_runner), |
| recent_redirects_(kMaxRedirectCount), |
| backend_destroy_message_loop_(nullptr), |
| segment_queried_(false), |
| backend_client_(backend_client.Pass()), |
| task_runner_(task_runner) { |
| } |
| |
| HistoryBackend::~HistoryBackend() { |
| DCHECK(!scheduled_commit_) << "Deleting without cleanup"; |
| STLDeleteContainerPointers(queued_history_db_tasks_.begin(), |
| queued_history_db_tasks_.end()); |
| queued_history_db_tasks_.clear(); |
| |
| // Release stashed embedder object before cleaning up the databases. |
| supports_user_data_helper_.reset(); |
| |
| // First close the databases before optionally running the "destroy" task. |
| CloseAllDatabases(); |
| |
| if (!backend_destroy_task_.is_null()) { |
| // Notify an interested party (typically a unit test) that we're done. |
| DCHECK(backend_destroy_message_loop_); |
| backend_destroy_message_loop_->PostTask(FROM_HERE, backend_destroy_task_); |
| } |
| |
| #if defined(OS_ANDROID) |
| if (backend_client_ && !history_dir_.empty()) |
| backend_client_->OnHistoryBackendDestroyed(this, history_dir_); |
| #endif |
| } |
| |
| void HistoryBackend::Init( |
| const std::string& languages, |
| bool force_fail, |
| const HistoryDatabaseParams& history_database_params) { |
| // HistoryBackend is created on the UI thread by HistoryService, then the |
| // HistoryBackend::Init() method is called on the DB thread. Create the |
| // base::SupportsUserData on the DB thread since it is not thread-safe. |
| supports_user_data_helper_.reset(new HistoryBackendHelper); |
| |
| if (!force_fail) |
| InitImpl(languages, history_database_params); |
| delegate_->DBLoaded(); |
| typed_url_syncable_service_.reset(new TypedUrlSyncableService(this)); |
| memory_pressure_listener_.reset(new base::MemoryPressureListener( |
| base::Bind(&HistoryBackend::OnMemoryPressure, base::Unretained(this)))); |
| } |
| |
| void HistoryBackend::SetOnBackendDestroyTask(base::MessageLoop* message_loop, |
| const base::Closure& task) { |
| if (!backend_destroy_task_.is_null()) |
| DLOG(WARNING) << "Setting more than one destroy task, overriding"; |
| backend_destroy_message_loop_ = message_loop; |
| backend_destroy_task_ = task; |
| } |
| |
| void HistoryBackend::Closing() { |
| // Any scheduled commit will have a reference to us, we must make it |
| // release that reference before we can be destroyed. |
| CancelScheduledCommit(); |
| |
| // Release our reference to the delegate, this reference will be keeping the |
| // history service alive. |
| delegate_.reset(); |
| } |
| |
| #if defined(OS_IOS) |
| void HistoryBackend::PersistState() { |
| Commit(); |
| } |
| #endif |
| |
| void HistoryBackend::ClearCachedDataForContextID(ContextID context_id) { |
| tracker_.ClearCachedDataForContextID(context_id); |
| } |
| |
| base::FilePath HistoryBackend::GetThumbnailFileName() const { |
| return history_dir_.Append(kThumbnailsFilename); |
| } |
| |
| base::FilePath HistoryBackend::GetFaviconsFileName() const { |
| return history_dir_.Append(kFaviconsFilename); |
| } |
| |
| SegmentID HistoryBackend::GetLastSegmentID(VisitID from_visit) { |
| // Set is used to detect referrer loops. Should not happen, but can |
| // if the database is corrupt. |
| std::set<VisitID> visit_set; |
| VisitID visit_id = from_visit; |
| while (visit_id) { |
| VisitRow row; |
| if (!db_->GetRowForVisit(visit_id, &row)) |
| return 0; |
| if (row.segment_id) |
| return row.segment_id; // Found a visit in this change with a segment. |
| |
| // Check the referrer of this visit, if any. |
| visit_id = row.referring_visit; |
| |
| if (visit_set.find(visit_id) != visit_set.end()) { |
| NOTREACHED() << "Loop in referer chain, giving up"; |
| break; |
| } |
| visit_set.insert(visit_id); |
| } |
| return 0; |
| } |
| |
| SegmentID HistoryBackend::UpdateSegments(const GURL& url, |
| VisitID from_visit, |
| VisitID visit_id, |
| ui::PageTransition transition_type, |
| const Time ts) { |
| if (!db_) |
| return 0; |
| |
| // We only consider main frames. |
| if (!ui::PageTransitionIsMainFrame(transition_type)) |
| return 0; |
| |
| SegmentID segment_id = 0; |
| ui::PageTransition t = ui::PageTransitionStripQualifier(transition_type); |
| |
| // Are we at the beginning of a new segment? |
| // Note that navigating to an existing entry (with back/forward) reuses the |
| // same transition type. We are not adding it as a new segment in that case |
| // because if this was the target of a redirect, we might end up with |
| // 2 entries for the same final URL. Ex: User types google.net, gets |
| // redirected to google.com. A segment is created for google.net. On |
| // google.com users navigates through a link, then press back. That last |
| // navigation is for the entry google.com transition typed. We end up adding |
| // a segment for that one as well. So we end up with google.net and google.com |
| // in the segment table, showing as 2 entries in the NTP. |
| // Note also that we should still be updating the visit count for that segment |
| // which we are not doing now. It should be addressed when |
| // http://crbug.com/96860 is fixed. |
| if ((t == ui::PAGE_TRANSITION_TYPED || |
| t == ui::PAGE_TRANSITION_AUTO_BOOKMARK) && |
| (transition_type & ui::PAGE_TRANSITION_FORWARD_BACK) == 0) { |
| // If so, create or get the segment. |
| std::string segment_name = db_->ComputeSegmentName(url); |
| URLID url_id = db_->GetRowForURL(url, nullptr); |
| if (!url_id) |
| return 0; |
| |
| segment_id = db_->GetSegmentNamed(segment_name); |
| if (!segment_id) { |
| segment_id = db_->CreateSegment(url_id, segment_name); |
| if (!segment_id) { |
| NOTREACHED(); |
| return 0; |
| } |
| } else { |
| // Note: if we update an existing segment, we update the url used to |
| // represent that segment in order to minimize stale most visited |
| // images. |
| db_->UpdateSegmentRepresentationURL(segment_id, url_id); |
| } |
| } else { |
| // Note: it is possible there is no segment ID set for this visit chain. |
| // This can happen if the initial navigation wasn't AUTO_BOOKMARK or |
| // TYPED. (For example GENERATED). In this case this visit doesn't count |
| // toward any segment. |
| segment_id = GetLastSegmentID(from_visit); |
| if (!segment_id) |
| return 0; |
| } |
| |
| // Set the segment in the visit. |
| if (!db_->SetSegmentID(visit_id, segment_id)) { |
| NOTREACHED(); |
| return 0; |
| } |
| |
| // Finally, increase the counter for that segment / day. |
| if (!db_->IncreaseSegmentVisitCount(segment_id, ts, 1)) { |
| NOTREACHED(); |
| return 0; |
| } |
| return segment_id; |
| } |
| |
| void HistoryBackend::UpdateWithPageEndTime(ContextID context_id, |
| int nav_entry_id, |
| const GURL& url, |
| Time end_ts) { |
| // Will be filled with the URL ID and the visit ID of the last addition. |
| VisitID visit_id = tracker_.GetLastVisit(context_id, nav_entry_id, url); |
| UpdateVisitDuration(visit_id, end_ts); |
| } |
| |
| void HistoryBackend::UpdateVisitDuration(VisitID visit_id, const Time end_ts) { |
| if (!db_) |
| return; |
| |
| // Get the starting visit_time for visit_id. |
| VisitRow visit_row; |
| if (db_->GetRowForVisit(visit_id, &visit_row)) { |
| // We should never have a negative duration time even when time is skewed. |
| visit_row.visit_duration = end_ts > visit_row.visit_time |
| ? end_ts - visit_row.visit_time |
| : TimeDelta::FromMicroseconds(0); |
| db_->UpdateVisitRow(visit_row); |
| } |
| } |
| |
| TopHostsList HistoryBackend::TopHosts(int num_hosts) const { |
| if (!db_) |
| return TopHostsList(); |
| |
| auto top_hosts = db_->TopHosts(num_hosts); |
| |
| host_ranks_.clear(); |
| int i = 0; |
| for (const auto& host_count : top_hosts) |
| host_ranks_[host_count.first] = i++; |
| return top_hosts; |
| } |
| |
| int HistoryBackend::HostRankIfAvailable(const GURL& url) const { |
| auto it = host_ranks_.find(HostForTopHosts(url)); |
| return it != host_ranks_.end() ? it->second : kMaxTopHosts; |
| } |
| |
| void HistoryBackend::AddPage(const HistoryAddPageArgs& request) { |
| if (!db_) |
| return; |
| |
| // Will be filled with the URL ID and the visit ID of the last addition. |
| std::pair<URLID, VisitID> last_ids( |
| 0, tracker_.GetLastVisit(request.context_id, request.nav_entry_id, |
| request.referrer)); |
| |
| VisitID from_visit_id = last_ids.second; |
| |
| // If a redirect chain is given, we expect the last item in that chain to be |
| // the final URL. |
| DCHECK(request.redirects.empty() || request.redirects.back() == request.url); |
| |
| // If the user is adding older history, we need to make sure our times |
| // are correct. |
| if (request.time < first_recorded_time_) |
| first_recorded_time_ = request.time; |
| |
| ui::PageTransition request_transition = request.transition; |
| ui::PageTransition stripped_transition = |
| ui::PageTransitionStripQualifier(request_transition); |
| bool is_keyword_generated = |
| (stripped_transition == ui::PAGE_TRANSITION_KEYWORD_GENERATED); |
| |
| // If the user is navigating to a not-previously-typed intranet hostname, |
| // change the transition to TYPED so that the omnibox will learn that this is |
| // a known host. |
| bool has_redirects = request.redirects.size() > 1; |
| if (ui::PageTransitionIsMainFrame(request_transition) && |
| (stripped_transition != ui::PAGE_TRANSITION_TYPED) && |
| !is_keyword_generated) { |
| const GURL& origin_url(has_redirects ? request.redirects[0] : request.url); |
| if (origin_url.SchemeIs(url::kHttpScheme) || |
| origin_url.SchemeIs(url::kHttpsScheme) || |
| origin_url.SchemeIs(url::kFtpScheme)) { |
| std::string host(origin_url.host()); |
| size_t registry_length = |
| net::registry_controlled_domains::GetRegistryLength( |
| host, |
| net::registry_controlled_domains::EXCLUDE_UNKNOWN_REGISTRIES, |
| net::registry_controlled_domains::EXCLUDE_PRIVATE_REGISTRIES); |
| if (registry_length == 0 && !db_->IsTypedHost(host)) { |
| stripped_transition = ui::PAGE_TRANSITION_TYPED; |
| request_transition = ui::PageTransitionFromInt( |
| stripped_transition | |
| ui::PageTransitionGetQualifier(request_transition)); |
| } |
| } |
| } |
| |
| if (!has_redirects) { |
| // The single entry is both a chain start and end. |
| ui::PageTransition t = ui::PageTransitionFromInt( |
| request_transition | ui::PAGE_TRANSITION_CHAIN_START | |
| ui::PAGE_TRANSITION_CHAIN_END); |
| |
| // No redirect case (one element means just the page itself). |
| last_ids = AddPageVisit(request.url, request.time, last_ids.second, t, |
| request.visit_source); |
| |
| // Update the segment for this visit. KEYWORD_GENERATED visits should not |
| // result in changing most visited, so we don't update segments (most |
| // visited db). |
| if (!is_keyword_generated) { |
| UpdateSegments(request.url, from_visit_id, last_ids.second, t, |
| request.time); |
| |
| // Update the referrer's duration. |
| UpdateVisitDuration(from_visit_id, request.time); |
| } |
| } else { |
| // Redirect case. Add the redirect chain. |
| |
| ui::PageTransition redirect_info = ui::PAGE_TRANSITION_CHAIN_START; |
| |
| RedirectList redirects = request.redirects; |
| if (redirects[0].SchemeIs(url::kAboutScheme)) { |
| // When the redirect source + referrer is "about" we skip it. This |
| // happens when a page opens a new frame/window to about:blank and then |
| // script sets the URL to somewhere else (used to hide the referrer). It |
| // would be nice to keep all these redirects properly but we don't ever |
| // see the initial about:blank load, so we don't know where the |
| // subsequent client redirect came from. |
| // |
| // In this case, we just don't bother hooking up the source of the |
| // redirects, so we remove it. |
| redirects.erase(redirects.begin()); |
| } else if (request_transition & ui::PAGE_TRANSITION_CLIENT_REDIRECT) { |
| redirect_info = ui::PAGE_TRANSITION_CLIENT_REDIRECT; |
| // The first entry in the redirect chain initiated a client redirect. |
| // We don't add this to the database since the referrer is already |
| // there, so we skip over it but change the transition type of the first |
| // transition to client redirect. |
| // |
| // The referrer is invalid when restoring a session that features an |
| // https tab that redirects to a different host or to http. In this |
| // case we don't need to reconnect the new redirect with the existing |
| // chain. |
| if (request.referrer.is_valid()) { |
| DCHECK_EQ(request.referrer, redirects[0]); |
| redirects.erase(redirects.begin()); |
| |
| // If the navigation entry for this visit has replaced that for the |
| // first visit, remove the CHAIN_END marker from the first visit. This |
| // can be called a lot, for example, the page cycler, and most of the |
| // time we won't have changed anything. |
| VisitRow visit_row; |
| if (request.did_replace_entry && |
| db_->GetRowForVisit(last_ids.second, &visit_row) && |
| visit_row.transition & ui::PAGE_TRANSITION_CHAIN_END) { |
| visit_row.transition = ui::PageTransitionFromInt( |
| visit_row.transition & ~ui::PAGE_TRANSITION_CHAIN_END); |
| db_->UpdateVisitRow(visit_row); |
| } |
| } |
| } |
| |
| for (size_t redirect_index = 0; redirect_index < redirects.size(); |
| redirect_index++) { |
| ui::PageTransition t = |
| ui::PageTransitionFromInt(stripped_transition | redirect_info); |
| |
| // If this is the last transition, add a CHAIN_END marker |
| if (redirect_index == (redirects.size() - 1)) { |
| t = ui::PageTransitionFromInt(t | ui::PAGE_TRANSITION_CHAIN_END); |
| } |
| |
| // Record all redirect visits with the same timestamp. We don't display |
| // them anyway, and if we ever decide to, we can reconstruct their order |
| // from the redirect chain. |
| last_ids = AddPageVisit(redirects[redirect_index], request.time, |
| last_ids.second, t, request.visit_source); |
| if (t & ui::PAGE_TRANSITION_CHAIN_START) { |
| // Update the segment for this visit. |
| UpdateSegments(redirects[redirect_index], from_visit_id, |
| last_ids.second, t, request.time); |
| |
| // Update the visit_details for this visit. |
| UpdateVisitDuration(from_visit_id, request.time); |
| } |
| |
| // Subsequent transitions in the redirect list must all be server |
| // redirects. |
| redirect_info = ui::PAGE_TRANSITION_SERVER_REDIRECT; |
| } |
| |
| // Last, save this redirect chain for later so we can set titles & favicons |
| // on the redirected pages properly. |
| recent_redirects_.Put(request.url, redirects); |
| } |
| |
| // TODO(brettw) bug 1140015: Add an "add page" notification so the history |
| // views can keep in sync. |
| |
| // Add the last visit to the tracker so we can get outgoing transitions. |
| // TODO(evanm): Due to http://b/1194536 we lose the referrers of a subframe |
| // navigation anyway, so last_visit_id is always zero for them. But adding |
| // them here confuses main frame history, so we skip them for now. |
| if (stripped_transition != ui::PAGE_TRANSITION_AUTO_SUBFRAME && |
| stripped_transition != ui::PAGE_TRANSITION_MANUAL_SUBFRAME && |
| !is_keyword_generated) { |
| tracker_.AddVisit(request.context_id, request.nav_entry_id, request.url, |
| last_ids.second); |
| } |
| |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::InitImpl( |
| const std::string& languages, |
| const HistoryDatabaseParams& history_database_params) { |
| DCHECK(!db_) << "Initializing HistoryBackend twice"; |
| // In the rare case where the db fails to initialize a dialog may get shown |
| // the blocks the caller, yet allows other messages through. For this reason |
| // we only set db_ to the created database if creation is successful. That |
| // way other methods won't do anything as db_ is still null. |
| |
| TimeTicks beginning_time = TimeTicks::Now(); |
| |
| // Compute the file names. |
| history_dir_ = history_database_params.history_dir; |
| base::FilePath history_name = history_dir_.Append(kHistoryFilename); |
| base::FilePath thumbnail_name = GetFaviconsFileName(); |
| |
| // Delete the old index database files which are no longer used. |
| DeleteFTSIndexDatabases(); |
| |
| // History database. |
| db_.reset(new HistoryDatabase( |
| history_database_params.download_interrupt_reason_none, |
| history_database_params.download_interrupt_reason_crash)); |
| |
| // Unretained to avoid a ref loop with db_. |
| db_->set_error_callback(base::Bind(&HistoryBackend::DatabaseErrorCallback, |
| base::Unretained(this))); |
| |
| sql::InitStatus status = db_->Init(history_name); |
| switch (status) { |
| case sql::INIT_OK: |
| break; |
| case sql::INIT_TOO_NEW: |
| delegate_->NotifyProfileError(status); |
| db_.reset(); |
| return; |
| case sql::INIT_FAILURE: { |
| // A null db_ will cause all calls on this object to notice this error |
| // and to not continue. If the error callback scheduled killing the |
| // database, the task it posted has not executed yet. Try killing the |
| // database now before we close it. |
| bool kill_db = scheduled_kill_db_; |
| if (kill_db) |
| KillHistoryDatabase(); |
| UMA_HISTOGRAM_BOOLEAN("History.AttemptedToFixProfileError", kill_db); |
| delegate_->NotifyProfileError(status); |
| db_.reset(); |
| return; |
| } |
| default: |
| NOTREACHED(); |
| } |
| |
| // Fill the in-memory database and send it back to the history service on the |
| // main thread. |
| { |
| scoped_ptr<InMemoryHistoryBackend> mem_backend(new InMemoryHistoryBackend); |
| if (mem_backend->Init(history_name)) |
| delegate_->SetInMemoryBackend(mem_backend.Pass()); |
| } |
| db_->BeginExclusiveMode(); // Must be after the mem backend read the data. |
| |
| // Thumbnail database. |
| // TODO(shess): "thumbnail database" these days only stores |
| // favicons. Thumbnails are stored in "top sites". Consider |
| // renaming "thumbnail" references to "favicons" or something of the |
| // sort. |
| thumbnail_db_.reset(new ThumbnailDatabase(backend_client_.get())); |
| if (thumbnail_db_->Init(thumbnail_name) != sql::INIT_OK) { |
| // Unlike the main database, we don't error out when the database is too |
| // new because this error is much less severe. Generally, this shouldn't |
| // happen since the thumbnail and main database versions should be in sync. |
| // We'll just continue without thumbnails & favicons in this case or any |
| // other error. |
| LOG(WARNING) << "Could not initialize the thumbnail database."; |
| thumbnail_db_.reset(); |
| } |
| |
| // Generate the history and thumbnail database metrics only after performing |
| // any migration work. |
| if (base::RandInt(1, 100) == 50) { |
| // Only do this computation sometimes since it can be expensive. |
| db_->ComputeDatabaseMetrics(history_name); |
| if (thumbnail_db_) |
| thumbnail_db_->ComputeDatabaseMetrics(); |
| } |
| |
| expirer_.SetDatabases(db_.get(), thumbnail_db_.get()); |
| |
| // Open the long-running transaction. |
| db_->BeginTransaction(); |
| if (thumbnail_db_) |
| thumbnail_db_->BeginTransaction(); |
| |
| // Get the first item in our database. |
| db_->GetStartDate(&first_recorded_time_); |
| |
| // Start expiring old stuff. |
| expirer_.StartExpiringOldStuff(TimeDelta::FromDays(kExpireDaysThreshold)); |
| |
| #if defined(OS_ANDROID) |
| if (backend_client_) { |
| backend_client_->OnHistoryBackendInitialized( |
| this, db_.get(), thumbnail_db_.get(), history_dir_); |
| } |
| #endif |
| |
| LOCAL_HISTOGRAM_TIMES("History.InitTime", TimeTicks::Now() - beginning_time); |
| } |
| |
| void HistoryBackend::OnMemoryPressure( |
| base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) { |
| bool trim_aggressively = |
| memory_pressure_level == |
| base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL; |
| if (db_) |
| db_->TrimMemory(trim_aggressively); |
| if (thumbnail_db_) |
| thumbnail_db_->TrimMemory(trim_aggressively); |
| } |
| |
| void HistoryBackend::CloseAllDatabases() { |
| if (db_) { |
| // Commit the long-running transaction. |
| db_->CommitTransaction(); |
| db_.reset(); |
| // Forget the first recorded time since the database is closed. |
| first_recorded_time_ = base::Time(); |
| } |
| if (thumbnail_db_) { |
| thumbnail_db_->CommitTransaction(); |
| thumbnail_db_.reset(); |
| } |
| } |
| |
| void HistoryBackend::RecordTopHostsMetrics(const GURL& url) { |
| // Convert index from 0-based to 1-based. |
| UMA_HISTOGRAM_ENUMERATION("History.TopHostsVisitsByRank", |
| HostRankIfAvailable(url) + 1, kMaxTopHosts + 2); |
| } |
| |
| std::pair<URLID, VisitID> HistoryBackend::AddPageVisit( |
| const GURL& url, |
| Time time, |
| VisitID referring_visit, |
| ui::PageTransition transition, |
| VisitSource visit_source) { |
| // Top-level frame navigations are visible, everything else is hidden |
| bool new_hidden = !ui::PageTransitionIsMainFrame(transition); |
| |
| // NOTE: This code must stay in sync with |
| // ExpireHistoryBackend::ExpireURLsForVisits(). |
| int typed_increment = 0; |
| ui::PageTransition transition_type = |
| ui::PageTransitionStripQualifier(transition); |
| if (ui::PageTransitionIsNewNavigation(transition) && |
| ((transition_type == ui::PAGE_TRANSITION_TYPED && |
| !ui::PageTransitionIsRedirect(transition)) || |
| transition_type == ui::PAGE_TRANSITION_KEYWORD_GENERATED)) |
| typed_increment = 1; |
| |
| if (!host_ranks_.empty() && visit_source == SOURCE_BROWSED && |
| (transition & ui::PAGE_TRANSITION_CHAIN_END)) { |
| RecordTopHostsMetrics(url); |
| } |
| |
| // See if this URL is already in the DB. |
| URLRow url_info(url); |
| URLID url_id = db_->GetRowForURL(url, &url_info); |
| if (url_id) { |
| // Update of an existing row. |
| if (ui::PageTransitionStripQualifier(transition) != |
| ui::PAGE_TRANSITION_RELOAD) |
| url_info.set_visit_count(url_info.visit_count() + 1); |
| if (typed_increment) |
| url_info.set_typed_count(url_info.typed_count() + typed_increment); |
| if (url_info.last_visit() < time) |
| url_info.set_last_visit(time); |
| |
| // Only allow un-hiding of pages, never hiding. |
| if (!new_hidden) |
| url_info.set_hidden(false); |
| |
| db_->UpdateURLRow(url_id, url_info); |
| } else { |
| // Addition of a new row. |
| url_info.set_visit_count(1); |
| url_info.set_typed_count(typed_increment); |
| url_info.set_last_visit(time); |
| url_info.set_hidden(new_hidden); |
| |
| url_id = db_->AddURL(url_info); |
| if (!url_id) { |
| NOTREACHED() << "Adding URL failed."; |
| return std::make_pair(0, 0); |
| } |
| url_info.id_ = url_id; |
| } |
| |
| // Add the visit with the time to the database. |
| VisitRow visit_info(url_id, time, referring_visit, transition, 0); |
| VisitID visit_id = db_->AddVisit(&visit_info, visit_source); |
| |
| if (visit_info.visit_time < first_recorded_time_) |
| first_recorded_time_ = visit_info.visit_time; |
| |
| // Broadcast a notification of the visit. |
| if (visit_id) { |
| RedirectList redirects; |
| // TODO(meelapshah) Disabled due to potential PageCycler regression. |
| // Re-enable this. |
| // QueryRedirectsTo(url, &redirects); |
| NotifyURLVisited(transition, url_info, redirects, time); |
| } else { |
| DVLOG(0) << "Failed to build visit insert statement: " |
| << "url_id = " << url_id; |
| } |
| |
| return std::make_pair(url_id, visit_id); |
| } |
| |
| void HistoryBackend::AddPagesWithDetails(const URLRows& urls, |
| VisitSource visit_source) { |
| if (!db_) |
| return; |
| |
| URLRows changed_urls; |
| for (URLRows::const_iterator i = urls.begin(); i != urls.end(); ++i) { |
| DCHECK(!i->last_visit().is_null()); |
| |
| // As of M37, we no longer maintain an archived database, ignore old visits. |
| if (IsExpiredVisitTime(i->last_visit())) |
| continue; |
| |
| URLRow existing_url; |
| URLID url_id = db_->GetRowForURL(i->url(), &existing_url); |
| if (!url_id) { |
| // Add the page if it doesn't exist. |
| url_id = db_->AddURL(*i); |
| if (!url_id) { |
| NOTREACHED() << "Could not add row to DB"; |
| return; |
| } |
| |
| changed_urls.push_back(*i); |
| changed_urls.back().set_id(url_id); // i->id_ is likely 0. |
| } |
| |
| // Sync code manages the visits itself. |
| if (visit_source != SOURCE_SYNCED) { |
| // Make up a visit to correspond to the last visit to the page. |
| VisitRow visit_info( |
| url_id, i->last_visit(), 0, |
| ui::PageTransitionFromInt(ui::PAGE_TRANSITION_LINK | |
| ui::PAGE_TRANSITION_CHAIN_START | |
| ui::PAGE_TRANSITION_CHAIN_END), |
| 0); |
| if (!db_->AddVisit(&visit_info, visit_source)) { |
| NOTREACHED() << "Adding visit failed."; |
| return; |
| } |
| |
| if (visit_info.visit_time < first_recorded_time_) |
| first_recorded_time_ = visit_info.visit_time; |
| } |
| } |
| |
| // Broadcast a notification for typed URLs that have been modified. This |
| // will be picked up by the in-memory URL database on the main thread. |
| // |
| // TODO(brettw) bug 1140015: Add an "add page" notification so the history |
| // views can keep in sync. |
| NotifyURLsModified(changed_urls); |
| ScheduleCommit(); |
| } |
| |
| bool HistoryBackend::IsExpiredVisitTime(const base::Time& time) { |
| return time < expirer_.GetCurrentExpirationTime(); |
| } |
| |
| void HistoryBackend::SetPageTitle(const GURL& url, |
| const base::string16& title) { |
| if (!db_) |
| return; |
| |
| // Search for recent redirects which should get the same title. We make a |
| // dummy list containing the exact URL visited if there are no redirects so |
| // the processing below can be the same. |
| RedirectList dummy_list; |
| RedirectList* redirects; |
| RedirectCache::iterator iter = recent_redirects_.Get(url); |
| if (iter != recent_redirects_.end()) { |
| redirects = &iter->second; |
| |
| // This redirect chain should have the destination URL as the last item. |
| DCHECK(!redirects->empty()); |
| DCHECK_EQ(redirects->back(), url); |
| } else { |
| // No redirect chain stored, make up one containing the URL we want so we |
| // can use the same logic below. |
| dummy_list.push_back(url); |
| redirects = &dummy_list; |
| } |
| |
| URLRows changed_urls; |
| for (size_t i = 0; i < redirects->size(); i++) { |
| URLRow row; |
| URLID row_id = db_->GetRowForURL(redirects->at(i), &row); |
| if (row_id && row.title() != title) { |
| row.set_title(title); |
| db_->UpdateURLRow(row_id, row); |
| changed_urls.push_back(row); |
| } |
| } |
| |
| // Broadcast notifications for any URLs that have changed. This will |
| // update the in-memory database and the InMemoryURLIndex. |
| if (!changed_urls.empty()) { |
| NotifyURLsModified(changed_urls); |
| ScheduleCommit(); |
| } |
| } |
| |
| void HistoryBackend::AddPageNoVisitForBookmark(const GURL& url, |
| const base::string16& title) { |
| if (!db_) |
| return; |
| |
| URLRow url_info(url); |
| URLID url_id = db_->GetRowForURL(url, &url_info); |
| if (url_id) { |
| // URL is already known, nothing to do. |
| return; |
| } |
| |
| if (!title.empty()) { |
| url_info.set_title(title); |
| } else { |
| url_info.set_title(base::UTF8ToUTF16(url.spec())); |
| } |
| |
| url_info.set_last_visit(Time::Now()); |
| // Mark the page hidden. If the user types it in, it'll unhide. |
| url_info.set_hidden(true); |
| |
| db_->AddURL(url_info); |
| } |
| |
| bool HistoryBackend::GetAllTypedURLs(URLRows* urls) { |
| if (db_) |
| return db_->GetAllTypedUrls(urls); |
| return false; |
| } |
| |
| bool HistoryBackend::GetVisitsForURL(URLID id, VisitVector* visits) { |
| if (db_) |
| return db_->GetVisitsForURL(id, visits); |
| return false; |
| } |
| |
| bool HistoryBackend::GetMostRecentVisitsForURL(URLID id, |
| int max_visits, |
| VisitVector* visits) { |
| if (db_) |
| return db_->GetMostRecentVisitsForURL(id, max_visits, visits); |
| return false; |
| } |
| |
| size_t HistoryBackend::UpdateURLs(const URLRows& urls) { |
| if (!db_) |
| return 0; |
| |
| URLRows changed_urls; |
| for (URLRows::const_iterator it = urls.begin(); it != urls.end(); ++it) { |
| DCHECK(it->id()); |
| if (db_->UpdateURLRow(it->id(), *it)) |
| changed_urls.push_back(*it); |
| } |
| |
| // Broadcast notifications for any URLs that have actually been changed. This |
| // will update the in-memory database and the InMemoryURLIndex. |
| size_t num_updated_records = changed_urls.size(); |
| if (num_updated_records) { |
| NotifyURLsModified(changed_urls); |
| ScheduleCommit(); |
| } |
| return num_updated_records; |
| } |
| |
| bool HistoryBackend::AddVisits(const GURL& url, |
| const std::vector<VisitInfo>& visits, |
| VisitSource visit_source) { |
| if (db_) { |
| for (std::vector<VisitInfo>::const_iterator visit = visits.begin(); |
| visit != visits.end(); ++visit) { |
| if (!AddPageVisit(url, visit->first, 0, visit->second, visit_source) |
| .first) { |
| return false; |
| } |
| } |
| ScheduleCommit(); |
| return true; |
| } |
| return false; |
| } |
| |
| bool HistoryBackend::RemoveVisits(const VisitVector& visits) { |
| if (!db_) |
| return false; |
| |
| expirer_.ExpireVisits(visits); |
| ScheduleCommit(); |
| return true; |
| } |
| |
| bool HistoryBackend::GetVisitsSource(const VisitVector& visits, |
| VisitSourceMap* sources) { |
| if (!db_) |
| return false; |
| |
| db_->GetVisitsSource(visits, sources); |
| return true; |
| } |
| |
| bool HistoryBackend::GetURL(const GURL& url, URLRow* url_row) { |
| if (db_) |
| return db_->GetRowForURL(url, url_row) != 0; |
| return false; |
| } |
| |
| void HistoryBackend::QueryURL(const GURL& url, |
| bool want_visits, |
| QueryURLResult* result) { |
| DCHECK(result); |
| result->success = db_ && db_->GetRowForURL(url, &result->row); |
| // Optionally query the visits. |
| if (result->success && want_visits) |
| db_->GetVisitsForURL(result->row.id(), &result->visits); |
| } |
| |
| TypedUrlSyncableService* HistoryBackend::GetTypedUrlSyncableService() const { |
| return typed_url_syncable_service_.get(); |
| } |
| |
| // Keyword visits -------------------------------------------------------------- |
| |
| void HistoryBackend::SetKeywordSearchTermsForURL(const GURL& url, |
| KeywordID keyword_id, |
| const base::string16& term) { |
| if (!db_) |
| return; |
| |
| // Get the ID for this URL. |
| URLRow row; |
| if (!db_->GetRowForURL(url, &row)) { |
| // There is a small possibility the url was deleted before the keyword |
| // was added. Ignore the request. |
| return; |
| } |
| |
| db_->SetKeywordSearchTermsForURL(row.id(), keyword_id, term); |
| |
| if (delegate_) |
| delegate_->NotifyKeywordSearchTermUpdated(row, keyword_id, term); |
| |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::DeleteAllSearchTermsForKeyword(KeywordID keyword_id) { |
| if (!db_) |
| return; |
| |
| db_->DeleteAllSearchTermsForKeyword(keyword_id); |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::DeleteKeywordSearchTermForURL(const GURL& url) { |
| if (!db_) |
| return; |
| |
| URLID url_id = db_->GetRowForURL(url, nullptr); |
| if (!url_id) |
| return; |
| db_->DeleteKeywordSearchTermForURL(url_id); |
| |
| if (delegate_) |
| delegate_->NotifyKeywordSearchTermDeleted(url_id); |
| |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::DeleteMatchingURLsForKeyword(KeywordID keyword_id, |
| const base::string16& term) { |
| if (!db_) |
| return; |
| |
| std::vector<KeywordSearchTermRow> rows; |
| if (db_->GetKeywordSearchTermRows(term, &rows)) { |
| std::vector<GURL> items_to_delete; |
| URLRow row; |
| for (std::vector<KeywordSearchTermRow>::iterator it = rows.begin(); |
| it != rows.end(); ++it) { |
| if ((it->keyword_id == keyword_id) && db_->GetURLRow(it->url_id, &row)) |
| items_to_delete.push_back(row.url()); |
| } |
| DeleteURLs(items_to_delete); |
| } |
| } |
| |
| // Observers ------------------------------------------------------------------- |
| |
| void HistoryBackend::AddObserver(HistoryBackendObserver* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void HistoryBackend::RemoveObserver(HistoryBackendObserver* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| // Downloads ------------------------------------------------------------------- |
| |
| uint32 HistoryBackend::GetNextDownloadId() { |
| return db_ ? db_->GetNextDownloadId() : kInvalidDownloadId; |
| } |
| |
| // Get all the download entries from the database. |
| void HistoryBackend::QueryDownloads(std::vector<DownloadRow>* rows) { |
| if (db_) |
| db_->QueryDownloads(rows); |
| } |
| |
| // Update a particular download entry. |
| void HistoryBackend::UpdateDownload(const DownloadRow& data) { |
| if (!db_) |
| return; |
| db_->UpdateDownload(data); |
| ScheduleCommit(); |
| } |
| |
| bool HistoryBackend::CreateDownload(const DownloadRow& history_info) { |
| if (!db_) |
| return false; |
| bool success = db_->CreateDownload(history_info); |
| ScheduleCommit(); |
| return success; |
| } |
| |
| void HistoryBackend::RemoveDownloads(const std::set<uint32>& ids) { |
| if (!db_) |
| return; |
| size_t downloads_count_before = db_->CountDownloads(); |
| base::TimeTicks started_removing = base::TimeTicks::Now(); |
| // HistoryBackend uses a long-running Transaction that is committed |
| // periodically, so this loop doesn't actually hit the disk too hard. |
| for (std::set<uint32>::const_iterator it = ids.begin(); it != ids.end(); |
| ++it) { |
| db_->RemoveDownload(*it); |
| } |
| ScheduleCommit(); |
| base::TimeTicks finished_removing = base::TimeTicks::Now(); |
| size_t downloads_count_after = db_->CountDownloads(); |
| |
| DCHECK_LE(downloads_count_after, downloads_count_before); |
| if (downloads_count_after > downloads_count_before) |
| return; |
| size_t num_downloads_deleted = downloads_count_before - downloads_count_after; |
| UMA_HISTOGRAM_COUNTS("Download.DatabaseRemoveDownloadsCount", |
| num_downloads_deleted); |
| base::TimeDelta micros = (1000 * (finished_removing - started_removing)); |
| UMA_HISTOGRAM_TIMES("Download.DatabaseRemoveDownloadsTime", micros); |
| if (num_downloads_deleted > 0) { |
| UMA_HISTOGRAM_TIMES("Download.DatabaseRemoveDownloadsTimePerRecord", |
| (1000 * micros) / num_downloads_deleted); |
| } |
| DCHECK_GE(ids.size(), num_downloads_deleted); |
| if (ids.size() < num_downloads_deleted) |
| return; |
| UMA_HISTOGRAM_COUNTS("Download.DatabaseRemoveDownloadsCountNotRemoved", |
| ids.size() - num_downloads_deleted); |
| } |
| |
| void HistoryBackend::QueryHistory(const base::string16& text_query, |
| const QueryOptions& options, |
| QueryResults* query_results) { |
| DCHECK(query_results); |
| base::TimeTicks beginning_time = base::TimeTicks::Now(); |
| if (db_) { |
| if (text_query.empty()) { |
| // Basic history query for the main database. |
| QueryHistoryBasic(options, query_results); |
| } else { |
| // Text history query. |
| QueryHistoryText(text_query, options, query_results); |
| } |
| } |
| UMA_HISTOGRAM_TIMES("History.QueryHistory", |
| TimeTicks::Now() - beginning_time); |
| } |
| |
| // Basic time-based querying of history. |
| void HistoryBackend::QueryHistoryBasic(const QueryOptions& options, |
| QueryResults* result) { |
| // First get all visits. |
| VisitVector visits; |
| bool has_more_results = db_->GetVisibleVisitsInRange(options, &visits); |
| DCHECK_LE(static_cast<int>(visits.size()), options.EffectiveMaxCount()); |
| |
| // Now add them and the URL rows to the results. |
| URLResult url_result; |
| for (size_t i = 0; i < visits.size(); i++) { |
| const VisitRow visit = visits[i]; |
| |
| // Add a result row for this visit, get the URL info from the DB. |
| if (!db_->GetURLRow(visit.url_id, &url_result)) { |
| DVLOG(0) << "Failed to get id " << visit.url_id << " from history.urls."; |
| continue; // DB out of sync and URL doesn't exist, try to recover. |
| } |
| |
| if (!url_result.url().is_valid()) { |
| DVLOG(0) << "Got invalid URL from history.urls with id " << visit.url_id |
| << ": " << url_result.url().possibly_invalid_spec(); |
| continue; // Don't report invalid URLs in case of corruption. |
| } |
| |
| url_result.set_visit_time(visit.visit_time); |
| |
| // Set whether the visit was blocked for a managed user by looking at the |
| // transition type. |
| url_result.set_blocked_visit( |
| (visit.transition & ui::PAGE_TRANSITION_BLOCKED) != 0); |
| |
| // We don't set any of the query-specific parts of the URLResult, since |
| // snippets and stuff don't apply to basic querying. |
| result->AppendURLBySwapping(&url_result); |
| } |
| |
| if (!has_more_results && options.begin_time <= first_recorded_time_) |
| result->set_reached_beginning(true); |
| } |
| |
| // Text-based querying of history. |
| void HistoryBackend::QueryHistoryText(const base::string16& text_query, |
| const QueryOptions& options, |
| QueryResults* result) { |
| URLRows text_matches; |
| db_->GetTextMatches(text_query, &text_matches); |
| |
| std::vector<URLResult> matching_visits; |
| VisitVector visits; // Declare outside loop to prevent re-construction. |
| for (size_t i = 0; i < text_matches.size(); i++) { |
| const URLRow& text_match = text_matches[i]; |
| // Get all visits for given URL match. |
| db_->GetVisibleVisitsForURL(text_match.id(), options, &visits); |
| for (size_t j = 0; j < visits.size(); j++) { |
| URLResult url_result(text_match); |
| url_result.set_visit_time(visits[j].visit_time); |
| matching_visits.push_back(url_result); |
| } |
| } |
| |
| std::sort(matching_visits.begin(), matching_visits.end(), |
| URLResult::CompareVisitTime); |
| |
| size_t max_results = options.max_count == 0 |
| ? std::numeric_limits<size_t>::max() |
| : static_cast<int>(options.max_count); |
| for (std::vector<URLResult>::iterator it = matching_visits.begin(); |
| it != matching_visits.end() && result->size() < max_results; ++it) { |
| result->AppendURLBySwapping(&(*it)); |
| } |
| |
| if (matching_visits.size() == result->size() && |
| options.begin_time <= first_recorded_time_) |
| result->set_reached_beginning(true); |
| } |
| |
| void HistoryBackend::QueryRedirectsFrom(const GURL& from_url, |
| RedirectList* redirects) { |
| redirects->clear(); |
| if (!db_) |
| return; |
| |
| URLID from_url_id = db_->GetRowForURL(from_url, nullptr); |
| VisitID cur_visit = db_->GetMostRecentVisitForURL(from_url_id, nullptr); |
| if (!cur_visit) |
| return; // No visits for URL. |
| |
| GetRedirectsFromSpecificVisit(cur_visit, redirects); |
| } |
| |
| void HistoryBackend::QueryRedirectsTo(const GURL& to_url, |
| RedirectList* redirects) { |
| redirects->clear(); |
| if (!db_) |
| return; |
| |
| URLID to_url_id = db_->GetRowForURL(to_url, nullptr); |
| VisitID cur_visit = db_->GetMostRecentVisitForURL(to_url_id, nullptr); |
| if (!cur_visit) |
| return; // No visits for URL. |
| |
| GetRedirectsToSpecificVisit(cur_visit, redirects); |
| } |
| |
| void HistoryBackend::GetVisibleVisitCountToHost( |
| const GURL& url, |
| VisibleVisitCountToHostResult* result) { |
| result->count = 0; |
| result->success = db_ && |
| db_->GetVisibleVisitCountToHost(url, &result->count, |
| &result->first_visit); |
| } |
| |
| void HistoryBackend::QueryMostVisitedURLs(int result_count, |
| int days_back, |
| MostVisitedURLList* result) { |
| if (!db_) |
| return; |
| |
| ScopedVector<PageUsageData> data; |
| db_->QuerySegmentUsage( |
| base::Time::Now() - base::TimeDelta::FromDays(days_back), result_count, |
| &data.get()); |
| |
| for (size_t i = 0; i < data.size(); ++i) { |
| PageUsageData* current_data = data[i]; |
| RedirectList redirects; |
| QueryRedirectsFrom(current_data->GetURL(), &redirects); |
| MostVisitedURL url = MakeMostVisitedURL(*current_data, redirects); |
| result->push_back(url); |
| } |
| } |
| |
| void HistoryBackend::QueryFilteredURLs(int result_count, |
| const VisitFilter& filter, |
| bool extended_info, |
| FilteredURLList* result) { |
| DCHECK(result); |
| base::Time request_start = base::Time::Now(); |
| |
| result->clear(); |
| if (!db_) { |
| // No History Database - return an empty list. |
| return; |
| } |
| |
| VisitVector visits; |
| db_->GetDirectVisitsDuringTimes(filter, 0, &visits); |
| |
| std::map<URLID, double> score_map; |
| for (size_t i = 0; i < visits.size(); ++i) { |
| score_map[visits[i].url_id] += filter.GetVisitScore(visits[i]); |
| } |
| |
| // TODO(georgey): experiment with visit_segment database granularity (it is |
| // currently 24 hours) to use it directly instead of using visits database, |
| // which is considerably slower. |
| ScopedVector<PageUsageData> data; |
| data.reserve(score_map.size()); |
| for (std::map<URLID, double>::iterator it = score_map.begin(); |
| it != score_map.end(); ++it) { |
| PageUsageData* pud = new PageUsageData(it->first); |
| pud->SetScore(it->second); |
| data.push_back(pud); |
| } |
| |
| // Limit to the top |result_count| results. |
| std::sort(data.begin(), data.end(), PageUsageData::Predicate); |
| if (result_count && implicit_cast<int>(data.size()) > result_count) |
| data.resize(result_count); |
| |
| for (size_t i = 0; i < data.size(); ++i) { |
| URLRow info; |
| if (db_->GetURLRow(data[i]->GetID(), &info)) { |
| data[i]->SetURL(info.url()); |
| data[i]->SetTitle(info.title()); |
| } |
| } |
| |
| for (size_t i = 0; i < data.size(); ++i) { |
| PageUsageData* current_data = data[i]; |
| FilteredURL url(*current_data); |
| |
| if (extended_info) { |
| VisitVector visits; |
| db_->GetVisitsForURL(current_data->GetID(), &visits); |
| if (visits.size() > 0) { |
| url.extended_info.total_visits = visits.size(); |
| for (size_t i = 0; i < visits.size(); ++i) { |
| url.extended_info.duration_opened += |
| visits[i].visit_duration.InSeconds(); |
| if (visits[i].visit_time > url.extended_info.last_visit_time) { |
| url.extended_info.last_visit_time = visits[i].visit_time; |
| } |
| } |
| // TODO(macourteau): implement the url.extended_info.visits stat. |
| } |
| } |
| result->push_back(url); |
| } |
| |
| int delta_time = std::max( |
| 1, std::min(999, static_cast<int>((base::Time::Now() - request_start) |
| .InMilliseconds()))); |
| STATIC_HISTOGRAM_POINTER_BLOCK( |
| "NewTabPage.SuggestedSitesLoadTime", Add(delta_time), |
| base::LinearHistogram::FactoryGet( |
| "NewTabPage.SuggestedSitesLoadTime", 1, 1000, 100, |
| base::Histogram::kUmaTargetedHistogramFlag)); |
| } |
| |
| void HistoryBackend::GetRedirectsFromSpecificVisit(VisitID cur_visit, |
| RedirectList* redirects) { |
| // Follow any redirects from the given visit and add them to the list. |
| // It *should* be impossible to get a circular chain here, but we check |
| // just in case to avoid infinite loops. |
| GURL cur_url; |
| std::set<VisitID> visit_set; |
| visit_set.insert(cur_visit); |
| while (db_->GetRedirectFromVisit(cur_visit, &cur_visit, &cur_url)) { |
| if (visit_set.find(cur_visit) != visit_set.end()) { |
| NOTREACHED() << "Loop in visit chain, giving up"; |
| return; |
| } |
| visit_set.insert(cur_visit); |
| redirects->push_back(cur_url); |
| } |
| } |
| |
| void HistoryBackend::GetRedirectsToSpecificVisit(VisitID cur_visit, |
| RedirectList* redirects) { |
| // Follow redirects going to cur_visit. These are added to |redirects| in |
| // the order they are found. If a redirect chain looks like A -> B -> C and |
| // |cur_visit| = C, redirects will be {B, A} in that order. |
| if (!db_) |
| return; |
| |
| GURL cur_url; |
| std::set<VisitID> visit_set; |
| visit_set.insert(cur_visit); |
| while (db_->GetRedirectToVisit(cur_visit, &cur_visit, &cur_url)) { |
| if (visit_set.find(cur_visit) != visit_set.end()) { |
| NOTREACHED() << "Loop in visit chain, giving up"; |
| return; |
| } |
| visit_set.insert(cur_visit); |
| redirects->push_back(cur_url); |
| } |
| } |
| |
| void HistoryBackend::ScheduleAutocomplete( |
| const base::Callback<void(HistoryBackend*, URLDatabase*)>& callback) { |
| callback.Run(this, db_.get()); |
| } |
| |
| void HistoryBackend::DeleteFTSIndexDatabases() { |
| // Find files on disk matching the text databases file pattern so we can |
| // quickly test for and delete them. |
| base::FilePath::StringType filepattern = FILE_PATH_LITERAL("History Index *"); |
| base::FileEnumerator enumerator(history_dir_, false, |
| base::FileEnumerator::FILES, filepattern); |
| int num_databases_deleted = 0; |
| base::FilePath current_file; |
| while (!(current_file = enumerator.Next()).empty()) { |
| if (sql::Connection::Delete(current_file)) |
| num_databases_deleted++; |
| } |
| UMA_HISTOGRAM_COUNTS("History.DeleteFTSIndexDatabases", |
| num_databases_deleted); |
| } |
| |
| void HistoryBackend::GetFavicons( |
| const std::vector<GURL>& icon_urls, |
| int icon_types, |
| const std::vector<int>& desired_sizes, |
| std::vector<favicon_base::FaviconRawBitmapResult>* bitmap_results) { |
| UpdateFaviconMappingsAndFetchImpl(nullptr, icon_urls, icon_types, |
| desired_sizes, bitmap_results); |
| } |
| |
| void HistoryBackend::GetLargestFaviconForURL( |
| const GURL& page_url, |
| const std::vector<int>& icon_types, |
| int minimum_size_in_pixels, |
| favicon_base::FaviconRawBitmapResult* favicon_bitmap_result) { |
| DCHECK(favicon_bitmap_result); |
| |
| if (!db_ || !thumbnail_db_) |
| return; |
| |
| TimeTicks beginning_time = TimeTicks::Now(); |
| |
| std::vector<IconMapping> icon_mappings; |
| if (!thumbnail_db_->GetIconMappingsForPageURL(page_url, &icon_mappings) || |
| icon_mappings.empty()) |
| return; |
| |
| int required_icon_types = 0; |
| for (std::vector<int>::const_iterator i = icon_types.begin(); |
| i != icon_types.end(); ++i) { |
| required_icon_types |= *i; |
| } |
| |
| // Find the largest bitmap for each IconType placing in |
| // |largest_favicon_bitmaps|. |
| std::map<favicon_base::IconType, FaviconBitmap> largest_favicon_bitmaps; |
| for (std::vector<IconMapping>::const_iterator i = icon_mappings.begin(); |
| i != icon_mappings.end(); ++i) { |
| if (!(i->icon_type & required_icon_types)) |
| continue; |
| std::vector<FaviconBitmapIDSize> bitmap_id_sizes; |
| thumbnail_db_->GetFaviconBitmapIDSizes(i->icon_id, &bitmap_id_sizes); |
| FaviconBitmap& largest = largest_favicon_bitmaps[i->icon_type]; |
| for (std::vector<FaviconBitmapIDSize>::const_iterator j = |
| bitmap_id_sizes.begin(); |
| j != bitmap_id_sizes.end(); ++j) { |
| if (largest.bitmap_id == 0 || |
| (largest.pixel_size.width() < j->pixel_size.width() && |
| largest.pixel_size.height() < j->pixel_size.height())) { |
| largest.icon_id = i->icon_id; |
| largest.bitmap_id = j->bitmap_id; |
| largest.pixel_size = j->pixel_size; |
| } |
| } |
| } |
| if (largest_favicon_bitmaps.empty()) |
| return; |
| |
| // Find an icon which is larger than minimum_size_in_pixels in the order of |
| // icon_types. |
| FaviconBitmap largest_icon; |
| for (std::vector<int>::const_iterator t = icon_types.begin(); |
| t != icon_types.end(); ++t) { |
| for (std::map<favicon_base::IconType, FaviconBitmap>::const_iterator f = |
| largest_favicon_bitmaps.begin(); |
| f != largest_favicon_bitmaps.end(); ++f) { |
| if (f->first & *t && |
| (largest_icon.bitmap_id == 0 || |
| (largest_icon.pixel_size.height() < f->second.pixel_size.height() && |
| largest_icon.pixel_size.width() < f->second.pixel_size.width()))) { |
| largest_icon = f->second; |
| } |
| } |
| if (largest_icon.pixel_size.width() > minimum_size_in_pixels && |
| largest_icon.pixel_size.height() > minimum_size_in_pixels) |
| break; |
| } |
| |
| GURL icon_url; |
| favicon_base::IconType icon_type; |
| if (!thumbnail_db_->GetFaviconHeader(largest_icon.icon_id, &icon_url, |
| &icon_type)) { |
| return; |
| } |
| |
| base::Time last_updated; |
| favicon_base::FaviconRawBitmapResult bitmap_result; |
| bitmap_result.icon_url = icon_url; |
| bitmap_result.icon_type = icon_type; |
| if (!thumbnail_db_->GetFaviconBitmap(largest_icon.bitmap_id, |
| &last_updated, nullptr, |
| &bitmap_result.bitmap_data, |
| &bitmap_result.pixel_size)) { |
| return; |
| } |
| |
| bitmap_result.expired = |
| (Time::Now() - last_updated) > TimeDelta::FromDays(kFaviconRefetchDays); |
| if (bitmap_result.is_valid()) |
| *favicon_bitmap_result = bitmap_result; |
| |
| LOCAL_HISTOGRAM_TIMES("History.GetLargestFaviconForURL", |
| TimeTicks::Now() - beginning_time); |
| } |
| |
| void HistoryBackend::GetFaviconsForURL( |
| const GURL& page_url, |
| int icon_types, |
| const std::vector<int>& desired_sizes, |
| std::vector<favicon_base::FaviconRawBitmapResult>* bitmap_results) { |
| DCHECK(bitmap_results); |
| GetFaviconsFromDB(page_url, icon_types, desired_sizes, bitmap_results); |
| } |
| |
| void HistoryBackend::GetFaviconForID( |
| favicon_base::FaviconID favicon_id, |
| int desired_size, |
| std::vector<favicon_base::FaviconRawBitmapResult>* bitmap_results) { |
| std::vector<favicon_base::FaviconID> favicon_ids; |
| favicon_ids.push_back(favicon_id); |
| std::vector<int> desired_sizes; |
| desired_sizes.push_back(desired_size); |
| |
| // Get results from DB. |
| GetFaviconBitmapResultsForBestMatch(favicon_ids, desired_sizes, |
| bitmap_results); |
| } |
| |
| void HistoryBackend::UpdateFaviconMappingsAndFetch( |
| const GURL& page_url, |
| const std::vector<GURL>& icon_urls, |
| int icon_types, |
| const std::vector<int>& desired_sizes, |
| std::vector<favicon_base::FaviconRawBitmapResult>* bitmap_results) { |
| UpdateFaviconMappingsAndFetchImpl(&page_url, icon_urls, icon_types, |
| desired_sizes, bitmap_results); |
| } |
| |
| void HistoryBackend::MergeFavicon( |
| const GURL& page_url, |
| const GURL& icon_url, |
| favicon_base::IconType icon_type, |
| scoped_refptr<base::RefCountedMemory> bitmap_data, |
| const gfx::Size& pixel_size) { |
| if (!thumbnail_db_ || !db_) |
| return; |
| |
| favicon_base::FaviconID favicon_id = |
| thumbnail_db_->GetFaviconIDForFaviconURL(icon_url, icon_type, nullptr); |
| |
| bool favicon_created = false; |
| if (!favicon_id) { |
| // There is no favicon at |icon_url|, create it. |
| favicon_id = thumbnail_db_->AddFavicon(icon_url, icon_type); |
| favicon_created = true; |
| } |
| |
| std::vector<FaviconBitmapIDSize> bitmap_id_sizes; |
| thumbnail_db_->GetFaviconBitmapIDSizes(favicon_id, &bitmap_id_sizes); |
| |
| // If there is already a favicon bitmap of |pixel_size| at |icon_url|, |
| // replace it. |
| bool bitmap_identical = false; |
| bool replaced_bitmap = false; |
| for (size_t i = 0; i < bitmap_id_sizes.size(); ++i) { |
| if (bitmap_id_sizes[i].pixel_size == pixel_size) { |
| if (IsFaviconBitmapDataEqual(bitmap_id_sizes[i].bitmap_id, bitmap_data)) { |
| // Sync calls MergeFavicon() for all of the favicons that it manages at |
| // startup. Do not update the "last updated" time if the favicon bitmap |
| // data matches that in the database. |
| // TODO: Pass in boolean to MergeFavicon() if any users of |
| // MergeFavicon() want the last_updated time to be updated when the new |
| // bitmap data is identical to the old. |
| bitmap_identical = true; |
| } else { |
| // Expire the favicon bitmap because sync can provide incorrect |
| // |bitmap_data|. See crbug.com/474421 for more details. Expiring the |
| // favicon bitmap causes it to be redownloaded the next time that the |
| // user visits any page which uses |icon_url|. |
| thumbnail_db_->SetFaviconBitmap(bitmap_id_sizes[i].bitmap_id, |
| bitmap_data, base::Time()); |
| replaced_bitmap = true; |
| } |
| break; |
| } |
| } |
| |
| // Create a vector of the pixel sizes of the favicon bitmaps currently at |
| // |icon_url|. |
| std::vector<gfx::Size> favicon_sizes; |
| for (size_t i = 0; i < bitmap_id_sizes.size(); ++i) |
| favicon_sizes.push_back(bitmap_id_sizes[i].pixel_size); |
| |
| if (!replaced_bitmap && !bitmap_identical) { |
| // Set the preexisting favicon bitmaps as expired as the preexisting favicon |
| // bitmaps are not consistent with the merged in data. |
| thumbnail_db_->SetFaviconOutOfDate(favicon_id); |
| |
| // Delete an arbitrary favicon bitmap to avoid going over the limit of |
| // |kMaxFaviconBitmapsPerIconURL|. |
| if (bitmap_id_sizes.size() >= kMaxFaviconBitmapsPerIconURL) { |
| thumbnail_db_->DeleteFaviconBitmap(bitmap_id_sizes[0].bitmap_id); |
| favicon_sizes.erase(favicon_sizes.begin()); |
| } |
| thumbnail_db_->AddFaviconBitmap(favicon_id, bitmap_data, base::Time::Now(), |
| pixel_size); |
| favicon_sizes.push_back(pixel_size); |
| } |
| |
| // A site may have changed the favicons that it uses for |page_url|. |
| // Example Scenario: |
| // page_url = news.google.com |
| // Initial State: www.google.com/favicon.ico 16x16, 32x32 |
| // MergeFavicon(news.google.com, news.google.com/news_specific.ico, ..., |
| // ..., 16x16) |
| // |
| // Difficulties: |
| // 1. Sync requires that a call to GetFaviconsForURL() returns the |
| // |bitmap_data| passed into MergeFavicon(). |
| // - It is invalid for the 16x16 bitmap for www.google.com/favicon.ico to |
| // stay mapped to news.google.com because it would be unclear which 16x16 |
| // bitmap should be returned via GetFaviconsForURL(). |
| // |
| // 2. www.google.com/favicon.ico may be mapped to more than just |
| // news.google.com (eg www.google.com). |
| // - The 16x16 bitmap cannot be deleted from www.google.com/favicon.ico |
| // |
| // To resolve these problems, we copy all of the favicon bitmaps previously |
| // mapped to news.google.com (|page_url|) and add them to the favicon at |
| // news.google.com/news_specific.ico (|icon_url|). The favicon sizes for |
| // |icon_url| are set to default to indicate that |icon_url| has incomplete |
| // / incorrect data. |
| // Difficulty 1: All but news.google.com/news_specific.ico are unmapped from |
| // news.google.com |
| // Difficulty 2: The favicon bitmaps for www.google.com/favicon.ico are not |
| // modified. |
| |
| std::vector<IconMapping> icon_mappings; |
| thumbnail_db_->GetIconMappingsForPageURL(page_url, icon_type, &icon_mappings); |
| |
| // Copy the favicon bitmaps mapped to |page_url| to the favicon at |icon_url| |
| // till the limit of |kMaxFaviconBitmapsPerIconURL| is reached. |
| bool favicon_bitmaps_copied = false; |
| for (size_t i = 0; i < icon_mappings.size(); ++i) { |
| if (favicon_sizes.size() >= kMaxFaviconBitmapsPerIconURL) |
| break; |
| |
| if (icon_mappings[i].icon_url == icon_url) |
| continue; |
| |
| std::vector<FaviconBitmap> bitmaps_to_copy; |
| thumbnail_db_->GetFaviconBitmaps(icon_mappings[i].icon_id, |
| &bitmaps_to_copy); |
| for (size_t j = 0; j < bitmaps_to_copy.size(); ++j) { |
| // Do not add a favicon bitmap at a pixel size for which there is already |
| // a favicon bitmap mapped to |icon_url|. The one there is more correct |
| // and having multiple equally sized favicon bitmaps for |page_url| is |
| // ambiguous in terms of GetFaviconsForURL(). |
| std::vector<gfx::Size>::iterator it = |
| std::find(favicon_sizes.begin(), favicon_sizes.end(), |
| bitmaps_to_copy[j].pixel_size); |
| if (it != favicon_sizes.end()) |
| continue; |
| |
| // Add the favicon bitmap as expired as it is not consistent with the |
| // merged in data. |
| thumbnail_db_->AddFaviconBitmap( |
| favicon_id, bitmaps_to_copy[j].bitmap_data, base::Time(), |
| bitmaps_to_copy[j].pixel_size); |
| favicon_sizes.push_back(bitmaps_to_copy[j].pixel_size); |
| favicon_bitmaps_copied = true; |
| |
| if (favicon_sizes.size() >= kMaxFaviconBitmapsPerIconURL) |
| break; |
| } |
| } |
| |
| // Update the favicon mappings such that only |icon_url| is mapped to |
| // |page_url|. |
| if (icon_mappings.size() != 1 || icon_mappings[0].icon_url != icon_url) { |
| std::vector<favicon_base::FaviconID> favicon_ids; |
| favicon_ids.push_back(favicon_id); |
| SetFaviconMappingsForPageAndRedirects(page_url, icon_type, favicon_ids); |
| SendFaviconChangedNotificationForPageAndRedirects(page_url); |
| } |
| |
| if (!favicon_created && (!bitmap_identical || favicon_bitmaps_copied)) { |
| // If there was a favicon at |icon_url| prior to MergeFavicon() being |
| // called, there may be page URLs which also use the favicon at |icon_url|. |
| // Notify the UI that the favicon has changed for |icon_url|. |
| SendFaviconChangedNotificationForIconURL(icon_url); |
| } |
| |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::SetFavicons(const GURL& page_url, |
| favicon_base::IconType icon_type, |
| const GURL& icon_url, |
| const std::vector<SkBitmap>& bitmaps) { |
| if (!thumbnail_db_ || !db_) |
| return; |
| |
| DCHECK_GE(kMaxFaviconBitmapsPerIconURL, bitmaps.size()); |
| |
| favicon_base::FaviconID icon_id = |
| thumbnail_db_->GetFaviconIDForFaviconURL(icon_url, icon_type, nullptr); |
| |
| bool favicon_created = false; |
| if (!icon_id) { |
| icon_id = thumbnail_db_->AddFavicon(icon_url, icon_type); |
| favicon_created = true; |
| } |
| |
| bool favicon_data_modified = SetFaviconBitmaps(icon_id, bitmaps); |
| |
| std::vector<favicon_base::FaviconID> icon_ids(1u, icon_id); |
| bool mapping_changed = |
| SetFaviconMappingsForPageAndRedirects(page_url, icon_type, icon_ids); |
| |
| if (mapping_changed) { |
| // Notify the UI that this function changed an icon mapping. |
| SendFaviconChangedNotificationForPageAndRedirects(page_url); |
| } |
| |
| if (favicon_data_modified && !favicon_created) { |
| // If there was a favicon at |icon_url| prior to SetFavicons() being called, |
| // there may be page URLs which also use the favicon at |icon_url|. Notify |
| // the UI that the favicon has changed for |icon_url|. |
| SendFaviconChangedNotificationForIconURL(icon_url); |
| } |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::SetFaviconsOutOfDateForPage(const GURL& page_url) { |
| std::vector<IconMapping> icon_mappings; |
| |
| if (!thumbnail_db_ || |
| !thumbnail_db_->GetIconMappingsForPageURL(page_url, &icon_mappings)) |
| return; |
| |
| for (std::vector<IconMapping>::iterator m = icon_mappings.begin(); |
| m != icon_mappings.end(); ++m) { |
| thumbnail_db_->SetFaviconOutOfDate(m->icon_id); |
| } |
| ScheduleCommit(); |
| } |
| |
| void HistoryBackend::SetImportedFavicons( |
| const favicon_base::FaviconUsageDataList& favicon_usage) { |
| if (!db_ || !thumbnail_db_) |
| return; |
| |
| Time now = Time::Now(); |
| |
| // Track all URLs that had their favicons set or updated. |
| std::set<GURL> favicons_changed; |
| |
| for (size_t i = 0; i < favicon_usage.size(); i++) { |
| favicon_base::FaviconID favicon_id = |
| thumbnail_db_->GetFaviconIDForFaviconURL( |
| favicon_usage[i].favicon_url, favicon_base::FAVICON, nullptr); |
| if (!favicon_id) { |
| // This favicon doesn't exist yet, so we create it using the given data. |
| // TODO(pkotwicz): Pass in real pixel size. |
| favicon_id = thumbnail_db_->AddFavicon( |
| favicon_usage[i].favicon_url, favicon_base::FAVICON, |
| new base::RefCountedBytes(favicon_usage[i].png_data), now, |
| gfx::Size()); |
| } |
| |
| // Save the mapping from all the URLs to the favicon. |
| for (std::set<GURL>::const_iterator url = favicon_usage[i].urls.begin(); |
| url != favicon_usage[i].urls.end(); ++url) { |
| URLRow url_row; |
| if (!db_->GetRowForURL(*url, &url_row)) { |
| // If the URL is present as a bookmark, add the url in history to |
| // save the favicon mapping. This will match with what history db does |
| // for regular bookmarked URLs with favicons - when history db is |
| // cleaned, we keep an entry in the db with 0 visits as long as that |
| // url is bookmarked. |
| if (backend_client_ && backend_client_->IsBookmarked(*url)) { |
| URLRow url_info(*url); |
| url_info.set_visit_count(0); |
| url_info.set_typed_count(0); |
| url_info.set_last_visit(base::Time()); |
| url_info.set_hidden(false); |
| db_->AddURL(url_info); |
| thumbnail_db_->AddIconMapping(*url, favicon_id); |
| favicons_changed.insert(*url); |
| } |
| } else { |
| if (!thumbnail_db_->GetIconMappingsForPageURL( |
| *url, favicon_base::FAVICON, nullptr)) { |
| // URL is present in history, update the favicon *only* if it is not |
| // set already. |
| thumbnail_db_->AddIconMapping(*url, favicon_id); |
| favicons_changed.insert(*url); |
| } |
| } |
| } |
| } |
| |
| if (!favicons_changed.empty()) { |
| // Send the notification about the changed favicon URLs. |
| NotifyFaviconsChanged(favicons_changed, GURL()); |
| } |
| } |
| |
| void HistoryBackend::UpdateFaviconMappingsAndFetchImpl( |
| const GURL* page_url, |
| const std::vector<GURL>& icon_urls, |
| int icon_types, |
| const std::vector<int>& desired_sizes, |
| std::vector<favicon_base::FaviconRawBitmapResult>* bitmap_results) { |
| // If |page_url| is specified, |icon_types| must be either a single icon |
| // type or icon types which are equivalent. |
| DCHECK(!page_url || icon_types == favicon_base::FAVICON || |
| icon_types == favicon_base::TOUCH_ICON || |
| icon_types == favicon_base::TOUCH_PRECOMPOSED_ICON || |
| icon_types == |
| (favicon_base::TOUCH_ICON | favicon_base::TOUCH_PRECOMPOSED_ICON)); |
| bitmap_results->clear(); |
| |
| if (!thumbnail_db_) { |
| return; |
| } |
| |
| std::vector<favicon_base::FaviconID> favicon_ids; |
| |
| // The icon type for which the mappings will the updated and data will be |
| // returned. |
| favicon_base::IconType selected_icon_type = favicon_base::INVALID_ICON; |
| |
| for (size_t i = 0; i < icon_urls.size(); ++i) { |
| const GURL& icon_url = icon_urls[i]; |
| favicon_base::IconType icon_type_out; |
| const favicon_base::FaviconID favicon_id = |
| thumbnail_db_->GetFaviconIDForFaviconURL(icon_url, icon_types, |
| &icon_type_out); |
| |
| if (favicon_id) { |
| // Return and update icon mappings only for the largest icon type. As |
| // |icon_urls| is not sorted in terms of icon type, clear |favicon_ids| |
| // if an |icon_url| with a larger icon type is found. |
| if (icon_type_out > selected_icon_type) { |
| selected_icon_type = icon_type_out; |
| favicon_ids.clear(); |
| } |
| if (icon_type_out == selected_icon_type) |
| favicon_ids.push_back(favicon_id); |
| } |
| } |
| |
| if (page_url && !favicon_ids.empty()) { |
| bool mappings_updated = SetFaviconMappingsForPageAndRedirects( |
| *page_url, selected_icon_type, favicon_ids); |
| if (mappings_updated) { |
| SendFaviconChangedNotificationForPageAndRedirects(*page_url); |
| ScheduleCommit(); |
| } |
| } |
| |
| GetFaviconBitmapResultsForBestMatch(favicon_ids, desired_sizes, |
| bitmap_results); |
| } |
| |
| bool HistoryBackend::SetFaviconBitmaps(favicon_base::FaviconID icon_id, |
| const std::vector<SkBitmap>& bitmaps) { |
| std::vector<FaviconBitmapIDSize> bitmap_id_sizes; |
| thumbnail_db_->GetFaviconBitmapIDSizes(icon_id, &bitmap_id_sizes); |
| |
| typedef std::pair<scoped_refptr<base::RefCountedBytes>, gfx::Size> |
| PNGEncodedBitmap; |
| std::vector<PNGEncodedBitmap> to_add; |
| for (size_t i = 0; i < bitmaps.size(); ++i) { |
| scoped_refptr<base::RefCountedBytes> bitmap_data(new base::RefCountedBytes); |
| if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmaps[i], false, |
| &bitmap_data->data())) { |
| continue; |
| } |
| to_add.push_back(std::make_pair( |
| bitmap_data, gfx::Size(bitmaps[i].width(), bitmaps[i].height()))); |
| } |
| |
| bool favicon_bitmaps_changed = false; |
| for (size_t i = 0; i < bitmap_id_sizes.size(); ++i) { |
| const gfx::Size& pixel_size = bitmap_id_sizes[i].pixel_size; |
| std::vector<PNGEncodedBitmap>::iterator match_it = to_add.end(); |
| for (std::vector<PNGEncodedBitmap>::iterator it = to_add.begin(); |
| it != to_add.end(); ++it) { |
| if (it->second == pixel_size) { |
| match_it = it; |
| break; |
| } |
| } |
| |
| FaviconBitmapID bitmap_id = bitmap_id_sizes[i].bitmap_id; |
| if (match_it == to_add.end()) { |
| thumbnail_db_->DeleteFaviconBitmap(bitmap_id); |
| |
| favicon_bitmaps_changed = true; |
| } else { |
| if (!favicon_bitmaps_changed && |
| IsFaviconBitmapDataEqual(bitmap_id, match_it->first)) { |
| thumbnail_db_->SetFaviconBitmapLastUpdateTime(bitmap_id, |
| base::Time::Now()); |
| } else { |
| thumbnail_db_->SetFaviconBitmap(bitmap_id, match_it->first, |
| base::Time::Now()); |
| favicon_bitmaps_changed = true; |
| } |
| to_add.erase(match_it); |
| } |
| } |
| |
| for (size_t i = 0; i < to_add.size(); ++i) { |
| thumbnail_db_->AddFaviconBitmap(icon_id, to_add[i].first, base::Time::Now(), |
| to_add[i].second); |
| |
| favicon_bitmaps_changed = true; |
| } |
| return favicon_bitmaps_changed; |
| } |
| |
| bool HistoryBackend::IsFaviconBitmapDataEqual( |
| FaviconBitmapID bitmap_id, |
| const scoped_refptr<base::RefCountedMemory>& new_bitmap_data) { |
| if (!new_bitmap_data) |
| return false; |
| |
| scoped_refptr<base::RefCountedMemory> original_bitmap_data; |
| thumbnail_db_->GetFaviconBitmap(bitmap_id, nullptr, nullptr, |
| &original_bitmap_data, nullptr); |
| return new_bitmap_data->Equals(original_bitmap_data); |
| } |
| |
| bool HistoryBackend::GetFaviconsFromDB( |
| const GURL& page_url, |
| int icon_types, |
| const std::vector<int>& desired_sizes, |
| std::vector<favicon_base::FaviconRawBitmapResult>* favicon_bitmap_results) { |
| DCHECK(favicon_bitmap_results); |
| favicon_bitmap_results->clear(); |
| |
| if (!db_ || !thumbnail_db_) |
| return false; |
| |
| // Time the query. |
| TimeTicks beginning_time = TimeTicks::Now(); |
| |
| // Get FaviconIDs for |page_url| and one of |icon_types|. |
| std::vector<IconMapping> icon_mappings; |
| thumbnail_db_->GetIconMappingsForPageURL(page_url, icon_types, |
| &icon_mappings); |
| std::vector<favicon_base::FaviconID> favicon_ids; |
| for (size_t i = 0; i < icon_mappings.size(); ++i) |
| favicon_ids.push_back(icon_mappings[i].icon_id); |
| |
| // Populate |favicon_bitmap_results| and |icon_url_sizes|. |
| bool success = GetFaviconBitmapResultsForBestMatch(favicon_ids, desired_sizes, |
| favicon_bitmap_results); |
| UMA_HISTOGRAM_TIMES("History.GetFavIconFromDB", // historical name |
| TimeTicks::Now() - beginning_time); |
| return success && !favicon_bitmap_results->empty(); |
| } |
| |
| bool HistoryBackend::GetFaviconBitmapResultsForBestMatch( |
| const std::vector<favicon_base::FaviconID>& candidate_favicon_ids, |
| const std::vector<int>& desired_sizes, |
| std::vector<favicon_base::FaviconRawBitmapResult>* favicon_bitmap_results) { |
| favicon_bitmap_results->clear(); |
| |
| if (candidate_favicon_ids.empty()) |
| return true; |
| |
| // Find the FaviconID and the FaviconBitmapIDs which best match |
| // |desired_size_in_dip| and |desired_scale_factors|. |
| // TODO(pkotwicz): Select bitmap results from multiple favicons once |
| // content::FaviconStatus supports multiple icon URLs. |
| favicon_base::FaviconID best_favicon_id = 0; |
| std::vector<FaviconBitmapID> best_bitmap_ids; |
| float highest_score = kSelectFaviconFramesInvalidScore; |
| for (size_t i = 0; i < candidate_favicon_ids.size(); ++i) { |
| std::vector<FaviconBitmapIDSize> bitmap_id_sizes; |
| thumbnail_db_->GetFaviconBitmapIDSizes(candidate_favicon_ids[i], |
| &bitmap_id_sizes); |
| |
| // Build vector of gfx::Size from |bitmap_id_sizes|. |
| std::vector<gfx::Size> sizes; |
| for (size_t j = 0; j < bitmap_id_sizes.size(); ++j) |
| sizes.push_back(bitmap_id_sizes[j].pixel_size); |
| |
| std::vector<size_t> candidate_bitmap_indices; |
| float score = 0; |
| SelectFaviconFrameIndices(sizes, desired_sizes, &candidate_bitmap_indices, |
| &score); |
| if (score > highest_score) { |
| highest_score = score; |
| best_favicon_id = candidate_favicon_ids[i], best_bitmap_ids.clear(); |
| for (size_t j = 0; j < candidate_bitmap_indices.size(); ++j) { |
| size_t candidate_index = candidate_bitmap_indices[j]; |
| best_bitmap_ids.push_back(bitmap_id_sizes[candidate_index].bitmap_id); |
| } |
| } |
| } |
| |
| // Construct FaviconRawBitmapResults from |best_favicon_id| and |
| // |best_bitmap_ids|. |
| GURL icon_url; |
| favicon_base::IconType icon_type; |
| if (!thumbnail_db_->GetFaviconHeader(best_favicon_id, &icon_url, |
| &icon_type)) { |
| return false; |
| } |
| |
| for (size_t i = 0; i < best_bitmap_ids.size(); ++i) { |
| base::Time last_updated; |
| favicon_base::FaviconRawBitmapResult bitmap_result; |
| bitmap_result.icon_url = icon_url; |
| bitmap_result.icon_type = icon_type; |
| if (!thumbnail_db_->GetFaviconBitmap(best_bitmap_ids[i], &last_updated, |
| nullptr, &bitmap_result.bitmap_data, |
| &bitmap_result.pixel_size)) { |
| return false; |
| } |
| |
| bitmap_result.expired = |
| (Time::Now() - last_updated) > TimeDelta::FromDays(kFaviconRefetchDays); |
| if (bitmap_result.is_valid()) |
| favicon_bitmap_results->push_back(bitmap_result); |
| } |
| return true; |
| } |
| |
| bool HistoryBackend::SetFaviconMappingsForPageAndRedirects( |
| const GURL& page_url, |
| favicon_base::IconType icon_type, |
| const std::vector<favicon_base::FaviconID>& icon_ids) { |
| if (!thumbnail_db_) |
| return false; |
| |
| // Find all the pages whose favicons we should set, we want to set it for |
| // all the pages in the redirect chain if it redirected. |
| RedirectList redirects; |
| GetCachedRecentRedirects(page_url, &redirects); |
| bool mappings_changed = SetFaviconMappingsForPages(redirects, icon_type, |
| icon_ids); |
| if (page_url.has_ref()) { |
| // Refs often gets added by Javascript, but the redirect chain is keyed to |
| // the URL without a ref. |
| GURL::Replacements replacements; |
| replacements.ClearRef(); |
| GURL page_url_without_ref = page_url.ReplaceComponents(replacements); |
| GetCachedRecentRedirects(page_url_without_ref, &redirects); |
| mappings_changed |= SetFaviconMappingsForPages(redirects, icon_type, |
| icon_ids); |
| } |
| |
| return mappings_changed; |
| } |
| |
| bool HistoryBackend::SetFaviconMappingsForPages( |
| const std::vector<GURL>& page_urls, |
| favicon_base::IconType icon_type, |
| const std::vector<favicon_base::FaviconID>& icon_ids) { |
| bool mappings_changed = false; |
| for (auto i(page_urls.begin()); i != page_urls.end(); ++i) { |
| mappings_changed |= SetFaviconMappingsForPage(*i, icon_type, icon_ids); |
| } |
| return mappings_changed; |
| } |
| |
| bool HistoryBackend::SetFaviconMappingsForPage( |
| const GURL& page_url, |
| favicon_base::IconType icon_type, |
| const std::vector<favicon_base::FaviconID>& icon_ids) { |
| DCHECK_LE(icon_ids.size(), kMaxFaviconsPerPage); |
| bool mappings_changed = false; |
| |
| // Two icon types are considered 'equivalent' if one of the icon types is |
| // TOUCH_ICON and the other is TOUCH_PRECOMPOSED_ICON. |
| // |
| // Sets the icon mappings from |page_url| for |icon_type| to the favicons |
| // with |icon_ids|. Mappings for |page_url| to favicons of type |icon_type| |
| // whose FaviconID is not in |icon_ids| are removed. All icon mappings for |
| // |page_url| to favicons of a type equivalent to |icon_type| are removed. |
| // Remove any favicons which are orphaned as a result of the removal of the |
| // icon mappings. |
| |
| std::vector<favicon_base::FaviconID> unmapped_icon_ids = icon_ids; |
| |
| std::vector<IconMapping> icon_mappings; |
| thumbnail_db_->GetIconMappingsForPageURL(page_url, &icon_mappings); |
| |
| for (std::vector<IconMapping>::iterator m = icon_mappings.begin(); |
| m != icon_mappings.end(); ++m) { |
| std::vector<favicon_base::FaviconID>::iterator icon_id_it = std::find( |
| unmapped_icon_ids.begin(), unmapped_icon_ids.end(), m->icon_id); |
| |
| // If the icon mapping already exists, avoid removing it and adding it back. |
| if (icon_id_it != unmapped_icon_ids.end()) { |
| unmapped_icon_ids.erase(icon_id_it); |
| continue; |
| } |
| |
| if ((icon_type == favicon_base::TOUCH_ICON && |
| m->icon_type == favicon_base::TOUCH_PRECOMPOSED_ICON) || |
| (icon_type == favicon_base::TOUCH_PRECOMPOSED_ICON && |
| m->icon_type == favicon_base::TOUCH_ICON) || |
| (icon_type == m->icon_type)) { |
| thumbnail_db_->DeleteIconMapping(m->mapping_id); |
| |
| // Removing the icon mapping may have orphaned the associated favicon so |
| // we must recheck it. This is not super fast, but this case will get |
| // triggered rarely, since normally a page will always map to the same |
| // favicon IDs. It will mostly happen for favicons we import. |
| if (!thumbnail_db_->HasMappingFor(m->icon_id)) |
| thumbnail_db_->DeleteFavicon(m->icon_id); |
| mappings_changed = true; |
| } |
| } |
| |
| for (size_t i = 0; i < unmapped_icon_ids.size(); ++i) { |
| thumbnail_db_->AddIconMapping(page_url, unmapped_icon_ids[i]); |
| mappings_changed = true; |
| } |
| return mappings_changed; |
| } |
| |
| void HistoryBackend::GetCachedRecentRedirects(const GURL& page_url, |
| RedirectList* redirect_list) { |
| RedirectCache::iterator iter = recent_redirects_.Get(page_url); |
| if (iter != recent_redirects_.end()) { |
| *redirect_list = iter->second; |
| |
| // The redirect chain should have the destination URL as the last item. |
| DCHECK(!redirect_list->empty()); |
| DCHECK_EQ(redirect_list->back(), page_url); |
| } else { |
| // No known redirects, construct mock redirect chain containing |page_url|. |
| redirect_list->push_back(page_url); |
| } |
| } |
| |
| void HistoryBackend::SendFaviconChangedNotificationForPageAndRedirects( |
| const GURL& page_url) { |
| RedirectList redirect_list; |
| GetCachedRecentRedirects(page_url, &redirect_list); |
| if (!redirect_list.empty()) { |
| std::set<GURL> favicons_changed(redirect_list.begin(), |
| redirect_list.end()); |
| NotifyFaviconsChanged(favicons_changed, GURL()); |
| } |
| } |
| |
| void HistoryBackend::SendFaviconChangedNotificationForIconURL( |
| const GURL& icon_url) { |
| NotifyFaviconsChanged(std::set<GURL>(), icon_url); |
| } |
| |
| void HistoryBackend::Commit() { |
| if (!db_) |
| return; |
| |
| #if defined(OS_IOS) |
| // Attempts to get the application running long enough to commit the database |
| // transaction if it is currently being backgrounded. |
| base::ios::ScopedCriticalAction scoped_critical_action; |
| #endif |
| |
| // Note that a commit may not actually have been scheduled if a caller |
| // explicitly calls this instead of using ScheduleCommit. Likewise, we |
| // may reset the flag written by a pending commit. But this is OK! It |
| // will merely cause extra commits (which is kind of the idea). We |
| // could optimize more for this case (we may get two extra commits in |
| // some cases) but it hasn't been important yet. |
| CancelScheduledCommit(); |
| |
| db_->CommitTransaction(); |
| DCHECK_EQ(db_->transaction_nesting(), 0) |
| << "Somebody left a transaction open"; |
| db_->BeginTransaction(); |
| |
| if (thumbnail_db_) { |
| thumbnail_db_->CommitTransaction(); |
| DCHECK_EQ(thumbnail_db_->transaction_nesting(), 0) |
| << "Somebody left a transaction open"; |
| thumbnail_db_->BeginTransaction(); |
| } |
| } |
| |
| void HistoryBackend::ScheduleCommit() { |
| if (scheduled_commit_) |
| return; |
| scheduled_commit_ = new CommitLaterTask(this); |
| task_runner_->PostDelayedTask( |
| FROM_HERE, |
| base::Bind(&CommitLaterTask::RunCommit, scheduled_commit_.get()), |
| base::TimeDelta::FromSeconds(kCommitIntervalSeconds)); |
| } |
| |
| void HistoryBackend::CancelScheduledCommit() { |
| if (scheduled_commit_) { |
| scheduled_commit_->Cancel(); |
| scheduled_commit_ = nullptr; |
| } |
| } |
| |
| void HistoryBackend::ProcessDBTaskImpl() { |
| if (!db_) { |
| // db went away, release all the refs. |
| STLDeleteContainerPointers(queued_history_db_tasks_.begin(), |
| queued_history_db_tasks_.end()); |
| queued_history_db_tasks_.clear(); |
| return; |
| } |
| |
| // Remove any canceled tasks. |
| while (!queued_history_db_tasks_.empty()) { |
| QueuedHistoryDBTask* task = queued_history_db_tasks_.front(); |
| if (!task->is_canceled()) |
| break; |
| |
| delete task; |
| queued_history_db_tasks_.pop_front(); |
| } |
| if (queued_history_db_tasks_.empty()) |
| return; |
| |
| // Run the first task. |
| scoped_ptr<QueuedHistoryDBTask> task(queued_history_db_tasks_.front()); |
| queued_history_db_tasks_.pop_front(); |
| if (task->Run(this, db_.get())) { |
| // The task is done, notify the callback. |
| task->DoneRun(); |
| } else { |
| // The task wants to run some more. Schedule it at the end of the current |
| // tasks, and process it after an invoke later. |
| queued_history_db_tasks_.push_back(task.release()); |
| task_runner_->PostTask( |
| FROM_HERE, base::Bind(&HistoryBackend::ProcessDBTaskImpl, this)); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // Generic operations |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| void HistoryBackend::DeleteURLs(const std::vector<GURL>& urls) { |
| expirer_.DeleteURLs(urls); |
| |
| db_->GetStartDate(&first_recorded_time_); |
| // Force a commit, if the user is deleting something for privacy reasons, we |
| // want to get it on disk ASAP. |
| Commit(); |
| } |
| |
| void HistoryBackend::DeleteURL(const GURL& url) { |
| expirer_.DeleteURL(url); |
| |
| db_->GetStartDate(&first_recorded_time_); |
| // Force a commit, if the user is deleting something for privacy reasons, we |
| // want to get it on disk ASAP. |
| Commit(); |
| } |
| |
| void HistoryBackend::ExpireHistoryBetween(const std::set<GURL>& restrict_urls, |
| Time begin_time, |
| Time end_time) { |
| if (!db_) |
| return; |
| |
| if (begin_time.is_null() && (end_time.is_null() || end_time.is_max()) && |
| restrict_urls.empty()) { |
| // Special case deleting all history so it can be faster and to reduce the |
| // possibility of an information leak. |
| DeleteAllHistory(); |
| } else { |
| // Clearing parts of history, have the expirer do the depend |
| expirer_.ExpireHistoryBetween(restrict_urls, begin_time, end_time); |
| |
| // Force a commit, if the user is deleting something for privacy reasons, |
| // we want to get it on disk ASAP. |
| Commit(); |
| } |
| |
| if (begin_time <= first_recorded_time_) |
| db_->GetStartDate(&first_recorded_time_); |
| } |
| |
| void HistoryBackend::ExpireHistoryForTimes(const std::set<base::Time>& times, |
| base::Time begin_time, |
| base::Time end_time) { |
| if (times.empty() || !db_) |
| return; |
| |
| DCHECK_GE(*times.begin(), begin_time) |
| << "Min time is before begin time: " << times.begin()->ToJsTime() |
| << " v.s. " << begin_time.ToJsTime(); |
| DCHECK_LT(*times.rbegin(), end_time) |
| << "Max time is after end time: " << times.rbegin()->ToJsTime() |
| << " v.s. " << end_time.ToJsTime(); |
| |
| QueryOptions options; |
| options.begin_time = begin_time; |
| options.end_time = end_time; |
| options.duplicate_policy = QueryOptions::KEEP_ALL_DUPLICATES; |
| QueryResults results; |
| QueryHistoryBasic(options, &results); |
| |
| // 1st pass: find URLs that are visited at one of |times|. |
| std::set<GURL> urls; |
| for (size_t i = 0; i < results.size(); ++i) { |
| if (times.count(results[i].visit_time()) > 0) |
| urls.insert(results[i].url()); |
| } |
| if (urls.empty()) |
| return; |
| |
| // 2nd pass: collect all visit times of those URLs. |
| std::vector<base::Time> times_to_expire; |
| for (size_t i = 0; i < results.size(); ++i) { |
| if (urls.count(results[i].url())) |
| times_to_expire.push_back(results[i].visit_time()); |
| } |
| |
| // Put the times in reverse chronological order and remove |
| // duplicates (for expirer_.ExpireHistoryForTimes()). |
| std::sort(times_to_expire.begin(), times_to_expire.end(), |
| std::greater<base::Time>()); |
| times_to_expire.erase( |
| std::unique(times_to_expire.begin(), times_to_expire.end()), |
| times_to_expire.end()); |
| |
| // Expires by times and commit. |
| DCHECK(!times_to_expire.empty()); |
| expirer_.ExpireHistoryForTimes(times_to_expire); |
| Commit(); |
| |
| DCHECK_GE(times_to_expire.back(), first_recorded_time_); |
| // Update |first_recorded_time_| if we expired it. |
| if (times_to_expire.back() == first_recorded_time_) |
| db_->GetStartDate(&first_recorded_time_); |
| } |
| |
| void HistoryBackend::ExpireHistory( |
| const std::vector<ExpireHistoryArgs>& expire_list) { |
| if (db_) { |
| bool update_first_recorded_time = false; |
| |
| for (std::vector<ExpireHistoryArgs>::const_iterator it = |
| expire_list.begin(); |
| it != expire_list.end(); ++it) { |
| expirer_.ExpireHistoryBetween(it->urls, it->begin_time, it->end_time); |
| |
| if (it->begin_time < first_recorded_time_) |
| update_first_recorded_time = true; |
| } |
| Commit(); |
| |
| // Update |first_recorded_time_| if any deletion might have affected it. |
| if (update_first_recorded_time) |
| db_->GetStartDate(&first_recorded_time_); |
| } |
| } |
| |
| void HistoryBackend::URLsNoLongerBookmarked(const std::set<GURL>& urls) { |
| if (!db_) |
| return; |
| |
| for (std::set<GURL>::const_iterator i = urls.begin(); i != urls.end(); ++i) { |
| VisitVector visits; |
| URLRow url_row; |
| if (db_->GetRowForURL(*i, &url_row)) |
| db_->GetVisitsForURL(url_row.id(), &visits); |
| // We need to call DeleteURL() even if the DB didn't contain this URL, so |
| // that we can delete all associated icons in the case of deleting an |
| // unvisited bookmarked URL. |
| if (visits.empty()) |
| expirer_.DeleteURL(*i); // There are no more visits; nuke the URL. |
| } |
| } |
| |
| void HistoryBackend::DatabaseErrorCallback(int error, sql::Statement* stmt) { |
| if (!scheduled_kill_db_ && sql::IsErrorCatastrophic(error)) { |
| scheduled_kill_db_ = true; |
| // Don't just do the close/delete here, as we are being called by |db| and |
| // that seems dangerous. |
| // TODO(shess): Consider changing KillHistoryDatabase() to use |
| // RazeAndClose(). Then it can be cleared immediately. |
| task_runner_->PostTask( |
| FROM_HERE, base::Bind(&HistoryBackend::KillHistoryDatabase, this)); |
| } |
| } |
| |
| void HistoryBackend::KillHistoryDatabase() { |
| scheduled_kill_db_ = false; |
| if (!db_) |
| return; |
| |
| // Rollback transaction because Raze() cannot be called from within a |
| // transaction. |
| db_->RollbackTransaction(); |
| bool success = db_->Raze(); |
| UMA_HISTOGRAM_BOOLEAN("History.KillHistoryDatabaseResult", success); |
| |
| // Release stashed embedder object before cleaning up the databases. |
| supports_user_data_helper_.reset(); |
| |
| // The expirer keeps tabs on the active databases. Tell it about the |
| // databases which will be closed. |
| expirer_.SetDatabases(nullptr, nullptr); |
| |
| // Reopen a new transaction for |db_| for the sake of CloseAllDatabases(). |
| db_->BeginTransaction(); |
| CloseAllDatabases(); |
| } |
| |
| base::SupportsUserData::Data* HistoryBackend::GetUserData( |
| const void* key) const { |
| DCHECK(supports_user_data_helper_); |
| return supports_user_data_helper_->GetUserData(key); |
| } |
| |
| void HistoryBackend::SetUserData(const void* key, |
| base::SupportsUserData::Data* data) { |
| DCHECK(supports_user_data_helper_); |
| supports_user_data_helper_->SetUserData(key, data); |
| } |
| |
| void HistoryBackend::ProcessDBTask( |
| scoped_ptr<HistoryDBTask> task, |
| scoped_refptr<base::SingleThreadTaskRunner> origin_loop, |
| const base::CancelableTaskTracker::IsCanceledCallback& is_canceled) { |
| bool scheduled = !queued_history_db_tasks_.empty(); |
| queued_history_db_tasks_.push_back( |
| new QueuedHistoryDBTask(task.Pass(), origin_loop, is_canceled)); |
| if (!scheduled) |
| ProcessDBTaskImpl(); |
| } |
| |
| void HistoryBackend::NotifyFaviconsChanged(const std::set<GURL>& page_urls, |
| const GURL& icon_url) { |
| if (delegate_) |
| delegate_->NotifyFaviconsChanged(page_urls, icon_url); |
| } |
| |
| void HistoryBackend::NotifyURLVisited(ui::PageTransition transition, |
| const URLRow& row, |
| const RedirectList& redirects, |
| base::Time visit_time) { |
| URLRow url_info(row); |
| if (typed_url_syncable_service_) |
| typed_url_syncable_service_->OnUrlVisited(transition, &url_info); |
| |
| FOR_EACH_OBSERVER( |
| HistoryBackendObserver, observers_, |
| OnURLVisited(this, transition, url_info, redirects, visit_time)); |
| |
| // TODO(sdefresne): turn HistoryBackend::Delegate from HistoryService into |
| // an HistoryBackendObserver and register it so that we can remove this |
| // method. |
| if (delegate_) |
| delegate_->NotifyURLVisited(transition, url_info, redirects, visit_time); |
| } |
| |
| void HistoryBackend::NotifyURLsModified(const URLRows& rows) { |
| URLRows changed_urls(rows); |
| if (typed_url_syncable_service_) |
| typed_url_syncable_service_->OnUrlsModified(&changed_urls); |
| |
| FOR_EACH_OBSERVER(HistoryBackendObserver, observers_, |
| OnURLsModified(this, changed_urls)); |
| |
| // TODO(sdefresne): turn HistoryBackend::Delegate from HistoryService into |
| // an HistoryBackendObserver and register it so that we can remove this |
| // method. |
| if (delegate_) |
| delegate_->NotifyURLsModified(changed_urls); |
| } |
| |
| void HistoryBackend::NotifyURLsDeleted(bool all_history, |
| bool expired, |
| const URLRows& rows, |
| const std::set<GURL>& favicon_urls) { |
| URLRows copied_rows(rows); |
| if (typed_url_syncable_service_) { |
| typed_url_syncable_service_->OnUrlsDeleted(all_history, expired, |
| &copied_rows); |
| } |
| |
| FOR_EACH_OBSERVER( |
| HistoryBackendObserver, observers_, |
| OnURLsDeleted(this, all_history, expired, copied_rows, favicon_urls)); |
| |
| // TODO(sdefresne): turn HistoryBackend::Delegate from HistoryService into |
| // an HistoryBackendObserver and register it so that we can remove this |
| // method. |
| if (delegate_) |
| delegate_->NotifyURLsDeleted(all_history, expired, copied_rows, |
| favicon_urls); |
| } |
| |
| // Deleting -------------------------------------------------------------------- |
| |
| void HistoryBackend::DeleteAllHistory() { |
| // Our approach to deleting all history is: |
| // 1. Copy the bookmarks and their dependencies to new tables with temporary |
| // names. |
| // 2. Delete the original tables. Since tables can not share pages, we know |
| // that any data we don't want to keep is now in an unused page. |
| // 3. Renaming the temporary tables to match the original. |
| // 4. Vacuuming the database to delete the unused pages. |
| // |
| // Since we are likely to have very few bookmarks and their dependencies |
| // compared to all history, this is also much faster than just deleting from |
| // the original tables directly. |
| |
| // Get the bookmarked URLs. |
| std::vector<URLAndTitle> starred_url_and_titles; |
| if (backend_client_) |
| backend_client_->GetBookmarks(&starred_url_and_titles); |
| |
| URLRows kept_url_rows; |
| std::vector<GURL> starred_urls; |
| for (const URLAndTitle& url_and_title : starred_url_and_titles) { |
| const GURL& url = url_and_title.url; |
| starred_urls.push_back(url); |
| |
| URLRow row; |
| if (db_->GetRowForURL(url, &row)) { |
| // Clear the last visit time so when we write these rows they are "clean." |
| row.set_last_visit(Time()); |
| row.set_visit_count(0); |
| row.set_typed_count(0); |
| kept_url_rows.push_back(row); |
| } |
| } |
| |
| // Delete all cached favicons which are not used by bookmarks. |
| if (!ClearAllThumbnailHistory(starred_urls)) { |
| LOG(ERROR) << "Thumbnail history could not be cleared"; |
| // We continue in this error case. If the user wants to delete their |
| // history, we should delete as much as we can. |
| } |
| |
| // ClearAllMainHistory will change the IDs of the URLs in kept_urls. |
| // Therefore, we clear the list afterwards to make sure nobody uses this |
| // invalid data. |
| if (!ClearAllMainHistory(kept_url_rows)) |
| LOG(ERROR) << "Main history could not be cleared"; |
| kept_url_rows.clear(); |
| |
| db_->GetStartDate(&first_recorded_time_); |
| |
| // Send out the notification that history is cleared. The in-memory database |
| // will pick this up and clear itself. |
| NotifyURLsDeleted(true, false, URLRows(), std::set<GURL>()); |
| } |
| |
| bool HistoryBackend::ClearAllThumbnailHistory( |
| const std::vector<GURL>& kept_urls) { |
| if (!thumbnail_db_) { |
| // When we have no reference to the thumbnail database, maybe there was an |
| // error opening it. In this case, we just try to blow it away to try to |
| // fix the error if it exists. This may fail, in which case either the |
| // file doesn't exist or there's no more we can do. |
| sql::Connection::Delete(GetFaviconsFileName()); |
| |
| // Older version of the database. |
| sql::Connection::Delete(GetThumbnailFileName()); |
| return true; |
| } |
| |
| // Isolate from any long-running transaction. |
| thumbnail_db_->CommitTransaction(); |
| thumbnail_db_->BeginTransaction(); |
| |
| // TODO(shess): If this fails, perhaps the database should be razed |
| // or deleted. |
| if (!thumbnail_db_->RetainDataForPageUrls(kept_urls)) { |
| thumbnail_db_->RollbackTransaction(); |
| thumbnail_db_->BeginTransaction(); |
| return false; |
| } |
| |
| #if defined(OS_ANDROID) |
| // TODO (michaelbai): Add the unit test once AndroidProviderBackend is |
| // available in HistoryBackend. |
| db_->ClearAndroidURLRows(); |
| #endif |
| |
| // Vacuum to remove all the pages associated with the dropped tables. There |
| // must be no transaction open on the table when we do this. We assume that |
| // our long-running transaction is open, so we complete it and start it again. |
| DCHECK_EQ(thumbnail_db_->transaction_nesting(), 1); |
| thumbnail_db_->CommitTransaction(); |
| thumbnail_db_->Vacuum(); |
| thumbnail_db_->BeginTransaction(); |
| return true; |
| } |
| |
| bool HistoryBackend::ClearAllMainHistory(const URLRows& kept_urls) { |
| // Create the duplicate URL table. We will copy the kept URLs into this. |
| if (!db_->CreateTemporaryURLTable()) |
| return false; |
| |
| // Insert the URLs into the temporary table. |
| for (URLRows::const_iterator i = kept_urls.begin(); i != kept_urls.end(); |
| ++i) { |
| db_->AddTemporaryURL(*i); |
| } |
| |
| // Replace the original URL table with the temporary one. |
| if (!db_->CommitTemporaryURLTable()) |
| return false; |
| |
| // Delete the old tables and recreate them empty. |
| db_->RecreateAllTablesButURL(); |
| |
| // Vacuum to reclaim the space from the dropped tables. This must be done |
| // when there is no transaction open, and we assume that our long-running |
| // transaction is currently open. |
| db_->CommitTransaction(); |
| db_->Vacuum(); |
| db_->BeginTransaction(); |
| db_->GetStartDate(&first_recorded_time_); |
| |
| return true; |
| } |
| |
| } // namespace history |