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gecko/toolkit/components/places/nsNavHistory.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Places code.
*
* The Initial Developer of the Original Code is
* Google Inc.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brett Wilson <brettw@gmail.com> (original author)
* Edward Lee <edward.lee@engineering.uiuc.edu>
* Ehsan Akhgari <ehsan.akhgari@gmail.com>
* Marco Bonardo <mak77@bonardo.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsNavHistory_h_
#define nsNavHistory_h_
#include "nsINavHistoryService.h"
#include "nsPIPlacesDatabase.h"
#include "nsPIPlacesHistoryListenersNotifier.h"
#include "nsIBrowserHistory.h"
#include "nsIGlobalHistory.h"
#include "nsIDownloadHistory.h"
#include "nsINavBookmarksService.h"
#include "nsIPrivateBrowsingService.h"
#include "nsIFaviconService.h"
#include "nsIObserverService.h"
#include "nsICollation.h"
#include "nsIStringBundle.h"
#include "nsITimer.h"
#include "nsMaybeWeakPtr.h"
#include "nsCategoryCache.h"
#include "nsNetCID.h"
#include "nsToolkitCompsCID.h"
#include "nsThreadUtils.h"
#include "nsURIHashKey.h"
#include "nsTHashtable.h"
#include "nsNavHistoryResult.h"
#include "nsNavHistoryQuery.h"
#include "Database.h"
#define QUERYUPDATE_TIME 0
#define QUERYUPDATE_SIMPLE 1
#define QUERYUPDATE_COMPLEX 2
#define QUERYUPDATE_COMPLEX_WITH_BOOKMARKS 3
#define QUERYUPDATE_HOST 4
// This magic number specified an uninitialized value for the
// mInPrivateBrowsing member
#define PRIVATEBROWSING_NOTINITED (bool(0xffffffff))
// Clamp title and URL to generously large, but not too large, length.
// See bug 319004 for details.
#define URI_LENGTH_MAX 65536
#define TITLE_LENGTH_MAX 4096
// Microsecond timeout for "recent" events such as typed and bookmark following.
// If you typed it more than this time ago, it's not recent.
#define RECENT_EVENT_THRESHOLD PRTime((PRInt64)15 * 60 * PR_USEC_PER_SEC)
#ifdef MOZ_XUL
// Fired after autocomplete feedback has been updated.
#define TOPIC_AUTOCOMPLETE_FEEDBACK_UPDATED "places-autocomplete-feedback-updated"
#endif
// Fired after frecency has been updated.
#define TOPIC_FRECENCY_UPDATED "places-frecency-updated"
class mozIAnnotationService;
class nsNavHistory;
class QueryKeyValuePair;
class nsIEffectiveTLDService;
class nsIIDNService;
class PlacesSQLQueryBuilder;
class nsIAutoCompleteController;
// nsNavHistory
class nsNavHistory : public nsSupportsWeakReference
, public nsINavHistoryService
, public nsIObserver
, public nsIBrowserHistory
, public nsIDownloadHistory
, public nsPIPlacesDatabase
, public nsPIPlacesHistoryListenersNotifier
, public mozIStorageVacuumParticipant
{
friend class PlacesSQLQueryBuilder;
public:
nsNavHistory();
NS_DECL_ISUPPORTS
NS_DECL_NSINAVHISTORYSERVICE
NS_DECL_NSIGLOBALHISTORY2
NS_DECL_NSIDOWNLOADHISTORY
NS_DECL_NSIBROWSERHISTORY
NS_DECL_NSIOBSERVER
NS_DECL_NSPIPLACESDATABASE
NS_DECL_NSPIPLACESHISTORYLISTENERSNOTIFIER
NS_DECL_MOZISTORAGEVACUUMPARTICIPANT
/**
* Obtains the nsNavHistory object.
*/
static nsNavHistory* GetSingleton();
/**
* Initializes the nsNavHistory object. This should only be called once.
*/
nsresult Init();
/**
* Used by other components in the places directory such as the annotation
* service to get a reference to this history object. Returns a pointer to
* the service if it exists. Otherwise creates one. Returns NULL on error.
*/
static nsNavHistory* GetHistoryService()
{
if (!gHistoryService) {
nsCOMPtr<nsINavHistoryService> serv =
do_GetService(NS_NAVHISTORYSERVICE_CONTRACTID);
NS_ENSURE_TRUE(serv, nsnull);
NS_ASSERTION(gHistoryService, "Should have static instance pointer now");
}
return gHistoryService;
}
/**
* Used by other components in the places directory to get a reference to a
* const version of this history object.
*
* @return A pointer to a const version of the service if it exists,
* NULL otherwise.
*/
static const nsNavHistory* GetConstHistoryService()
{
const nsNavHistory* const history = gHistoryService;
return history;
}
/**
* Fetches the database id and the GUID associated to the given URI.
*
* @param aURI
* The page to look for.
* @param _pageId
* Will be set to the database id associated with the page.
* If the page doesn't exist, this will be zero.
* @param _GUID
* Will be set to the unique id associated with the page.
* If the page doesn't exist, this will be empty.
* @note This DOES NOT check for bad URLs other than that they're nonempty.
*/
nsresult GetIdForPage(nsIURI* aURI,
PRInt64* _pageId, nsCString& _GUID);
/**
* Fetches the database id and the GUID associated to the given URI, creating
* a new database entry if one doesn't exist yet.
*
* @param aURI
* The page to look for or create.
* @param _pageId
* Will be set to the database id associated with the page.
* @param _GUID
* Will be set to the unique id associated with the page.
* @note This DOES NOT check for bad URLs other than that they're nonempty.
*/
nsresult GetOrCreateIdForPage(nsIURI* aURI,
PRInt64* _pageId, nsCString& _GUID);
/**
* Asynchronously recalculates frecency for a given page.
*
* @param aPlaceId
* Place id to recalculate the frecency for.
* @note If the new frecency is a non-zero value it will also unhide the page,
* otherwise will reuse the old hidden value.
*/
nsresult UpdateFrecency(PRInt64 aPlaceId);
/**
* Recalculates frecency for all pages requesting that (frecency < 0). Those
* may be generated:
* * After a "clear private data"
* * After removing visits
* * After migrating from older versions
*/
nsresult FixInvalidFrecencies();
/**
* Invalidate the frecencies of a list of places, so they will be recalculated
* at the first idle-daily notification.
*
* @param aPlacesIdsQueryString
* Query string containing list of places to be invalidated. If it's
* an empty string all places will be invalidated.
*/
nsresult invalidateFrecencies(const nsCString& aPlaceIdsQueryString);
/**
* These functions return non-owning references to the locale-specific
* objects for places components.
*/
nsIStringBundle* GetBundle();
nsIStringBundle* GetDateFormatBundle();
nsICollation* GetCollation();
void GetStringFromName(const PRUnichar* aName, nsACString& aResult);
void GetAgeInDaysString(PRInt32 aInt, const PRUnichar *aName,
nsACString& aResult);
void GetMonthName(PRInt32 aIndex, nsACString& aResult);
void GetMonthYear(PRInt32 aMonth, PRInt32 aYear, nsACString& aResult);
// Returns whether history is enabled or not.
bool IsHistoryDisabled() {
return !mHistoryEnabled || InPrivateBrowsingMode();
}
// Constants for the columns returned by the above statement.
static const PRInt32 kGetInfoIndex_PageID;
static const PRInt32 kGetInfoIndex_URL;
static const PRInt32 kGetInfoIndex_Title;
static const PRInt32 kGetInfoIndex_RevHost;
static const PRInt32 kGetInfoIndex_VisitCount;
static const PRInt32 kGetInfoIndex_VisitDate;
static const PRInt32 kGetInfoIndex_FaviconURL;
static const PRInt32 kGetInfoIndex_SessionId;
static const PRInt32 kGetInfoIndex_ItemId;
static const PRInt32 kGetInfoIndex_ItemDateAdded;
static const PRInt32 kGetInfoIndex_ItemLastModified;
static const PRInt32 kGetInfoIndex_ItemParentId;
static const PRInt32 kGetInfoIndex_ItemTags;
static const PRInt32 kGetInfoIndex_Frecency;
PRInt64 GetTagsFolder();
// this actually executes a query and gives you results, it is used by
// nsNavHistoryQueryResultNode
nsresult GetQueryResults(nsNavHistoryQueryResultNode *aResultNode,
const nsCOMArray<nsNavHistoryQuery>& aQueries,
nsNavHistoryQueryOptions *aOptions,
nsCOMArray<nsNavHistoryResultNode>* aResults);
// Take a row of kGetInfoIndex_* columns and construct a ResultNode.
// The row must contain the full set of columns.
nsresult RowToResult(mozIStorageValueArray* aRow,
nsNavHistoryQueryOptions* aOptions,
nsNavHistoryResultNode** aResult);
nsresult QueryRowToResult(PRInt64 aItemId, const nsACString& aURI,
const nsACString& aTitle,
PRUint32 aAccessCount, PRTime aTime,
const nsACString& aFavicon,
nsNavHistoryResultNode** aNode);
nsresult VisitIdToResultNode(PRInt64 visitId,
nsNavHistoryQueryOptions* aOptions,
nsNavHistoryResultNode** aResult);
nsresult BookmarkIdToResultNode(PRInt64 aBookmarkId,
nsNavHistoryQueryOptions* aOptions,
nsNavHistoryResultNode** aResult);
nsresult URIToResultNode(nsIURI* aURI,
nsNavHistoryQueryOptions* aOptions,
nsNavHistoryResultNode** aResult);
// used by other places components to send history notifications (for example,
// when the favicon has changed)
void SendPageChangedNotification(nsIURI* aURI, PRUint32 aChangedAttribute,
const nsAString& aValue,
const nsACString& aGUID);
/**
* Returns current number of days stored in history.
*/
PRInt32 GetDaysOfHistory();
// used by query result nodes to update: see comment on body of CanLiveUpdateQuery
static PRUint32 GetUpdateRequirements(const nsCOMArray<nsNavHistoryQuery>& aQueries,
nsNavHistoryQueryOptions* aOptions,
bool* aHasSearchTerms);
bool EvaluateQueryForNode(const nsCOMArray<nsNavHistoryQuery>& aQueries,
nsNavHistoryQueryOptions* aOptions,
nsNavHistoryResultNode* aNode);
static nsresult AsciiHostNameFromHostString(const nsACString& aHostName,
nsACString& aAscii);
void DomainNameFromURI(nsIURI* aURI,
nsACString& aDomainName);
static PRTime NormalizeTime(PRUint32 aRelative, PRTime aOffset);
// Don't use these directly, inside nsNavHistory use UpdateBatchScoper,
// else use nsINavHistoryService::RunInBatchMode
nsresult BeginUpdateBatch();
nsresult EndUpdateBatch();
// The level of batches' nesting, 0 when no batches are open.
PRInt32 mBatchLevel;
// Current active transaction for a batch.
mozStorageTransaction* mBatchDBTransaction;
// better alternative to QueryStringToQueries (in nsNavHistoryQuery.cpp)
nsresult QueryStringToQueryArray(const nsACString& aQueryString,
nsCOMArray<nsNavHistoryQuery>* aQueries,
nsNavHistoryQueryOptions** aOptions);
// Returns true if we are currently in private browsing mode
bool InPrivateBrowsingMode()
{
if (mInPrivateBrowsing == PRIVATEBROWSING_NOTINITED) {
mInPrivateBrowsing = false;
nsCOMPtr<nsIPrivateBrowsingService> pbs =
do_GetService(NS_PRIVATE_BROWSING_SERVICE_CONTRACTID);
if (pbs) {
pbs->GetPrivateBrowsingEnabled(&mInPrivateBrowsing);
}
}
return mInPrivateBrowsing;
}
typedef nsDataHashtable<nsCStringHashKey, nsCString> StringHash;
/**
* Indicates if it is OK to notify history observers or not.
*
* @return true if it is OK to notify, false otherwise.
*/
bool canNotify() { return mCanNotify; }
enum RecentEventFlags {
RECENT_TYPED = 1 << 0, // User typed in URL recently
RECENT_ACTIVATED = 1 << 1, // User tapped URL link recently
RECENT_BOOKMARKED = 1 << 2 // User bookmarked URL recently
};
/**
* Returns any recent activity done with a URL.
* @return Any recent events associated with this URI. Each bit is set
* according to RecentEventFlags enum values.
*/
PRUint32 GetRecentFlags(nsIURI *aURI);
/**
* Registers a TRANSITION_EMBED visit for the session.
*
* @param aURI
* URI of the page.
* @param aTime
* Visit time. Only the last registered visit time is retained.
*/
void registerEmbedVisit(nsIURI* aURI, PRInt64 aTime);
/**
* Returns whether the specified url has a embed visit.
*
* @param aURI
* URI of the page.
* @return whether the page has a embed visit.
*/
bool hasEmbedVisit(nsIURI* aURI);
/**
* Clears all registered embed visits.
*/
void clearEmbedVisits();
PRInt32 GetFrecencyAgedWeight(PRInt32 aAgeInDays) const
{
if (aAgeInDays <= mFirstBucketCutoffInDays) {
return mFirstBucketWeight;
}
if (aAgeInDays <= mSecondBucketCutoffInDays) {
return mSecondBucketWeight;
}
if (aAgeInDays <= mThirdBucketCutoffInDays) {
return mThirdBucketWeight;
}
if (aAgeInDays <= mFourthBucketCutoffInDays) {
return mFourthBucketWeight;
}
return mDefaultWeight;
}
PRInt32 GetFrecencyBucketWeight(PRInt32 aBucketIndex) const
{
switch(aBucketIndex) {
case 1:
return mFirstBucketWeight;
case 2:
return mSecondBucketWeight;
case 3:
return mThirdBucketWeight;
case 4:
return mFourthBucketWeight;
default:
return mDefaultWeight;
}
}
PRInt32 GetFrecencyTransitionBonus(PRInt32 aTransitionType,
bool aVisited) const
{
switch (aTransitionType) {
case nsINavHistoryService::TRANSITION_EMBED:
return mEmbedVisitBonus;
case nsINavHistoryService::TRANSITION_FRAMED_LINK:
return mFramedLinkVisitBonus;
case nsINavHistoryService::TRANSITION_LINK:
return mLinkVisitBonus;
case nsINavHistoryService::TRANSITION_TYPED:
return aVisited ? mTypedVisitBonus : mUnvisitedTypedBonus;
case nsINavHistoryService::TRANSITION_BOOKMARK:
return aVisited ? mBookmarkVisitBonus : mUnvisitedBookmarkBonus;
case nsINavHistoryService::TRANSITION_DOWNLOAD:
return mDownloadVisitBonus;
case nsINavHistoryService::TRANSITION_REDIRECT_PERMANENT:
return mPermRedirectVisitBonus;
case nsINavHistoryService::TRANSITION_REDIRECT_TEMPORARY:
return mTempRedirectVisitBonus;
default:
// 0 == undefined (see bug #375777 for details)
NS_WARN_IF_FALSE(!aTransitionType, "new transition but no bonus for frecency");
return mDefaultVisitBonus;
}
}
PRInt32 GetNumVisitsForFrecency() const
{
return mNumVisitsForFrecency;
}
PRInt64 GetNewSessionID();
/**
* Fires onVisit event to nsINavHistoryService observers
*/
void NotifyOnVisit(nsIURI* aURI,
PRInt64 aVisitID,
PRTime aTime,
PRInt64 aSessionID,
PRInt64 referringVisitID,
PRInt32 aTransitionType,
const nsACString& aGUID);
/**
* Fires onTitleChanged event to nsINavHistoryService observers
*/
void NotifyTitleChange(nsIURI* aURI,
const nsString& title,
const nsACString& aGUID);
bool isBatching() {
return mBatchLevel > 0;
}
private:
~nsNavHistory();
// used by GetHistoryService
static nsNavHistory *gHistoryService;
protected:
// Database handle.
nsRefPtr<mozilla::places::Database> mDB;
/**
* Decays frecency and inputhistory values. Runs on idle-daily.
*/
nsresult DecayFrecency();
nsresult CalculateFrecency(PRInt64 aPageID, PRInt32 aTyped, PRInt32 aVisitCount, nsCAutoString &aURL, PRInt32 *aFrecency);
nsresult CalculateFrecencyInternal(PRInt64 aPageID, PRInt32 aTyped, PRInt32 aVisitCount, bool aIsBookmarked, PRInt32 *aFrecency);
nsresult RemovePagesInternal(const nsCString& aPlaceIdsQueryString);
nsresult CleanupPlacesOnVisitsDelete(const nsCString& aPlaceIdsQueryString);
nsresult AddURIInternal(nsIURI* aURI, PRTime aTime, bool aRedirect,
bool aToplevel, nsIURI* aReferrer);
nsresult AddVisitChain(nsIURI* aURI, PRTime aTime,
bool aToplevel, bool aRedirect,
nsIURI* aReferrer, PRInt64* aVisitID,
PRInt64* aSessionID);
nsresult InternalAddNewPage(nsIURI* aURI, const nsAString& aTitle,
bool aHidden, bool aTyped,
PRInt32 aVisitCount, bool aCalculateFrecency,
PRInt64* aPageID, nsACString& guid);
nsresult InternalAddVisit(PRInt64 aPageID, PRInt64 aReferringVisit,
PRInt64 aSessionID, PRTime aTime,
PRInt32 aTransitionType, PRInt64* aVisitID);
bool FindLastVisit(nsIURI* aURI,
PRInt64* aVisitID,
PRTime* aTime,
PRInt64* aSessionID);
bool IsURIStringVisited(const nsACString& url);
/**
* Loads all of the preferences that we use into member variables.
*
* @note If mPrefBranch is NULL, this does nothing.
*/
void LoadPrefs();
/**
* Calculates and returns value for mCachedNow.
* This is an hack to avoid calling PR_Now() too often, as is the case when
* we're asked the ageindays of many history entries in a row. A timer is
* set which will clear our valid flag after a short timeout.
*/
PRTime GetNow();
PRTime mCachedNow;
nsCOMPtr<nsITimer> mExpireNowTimer;
/**
* Called when the cached now value is expired and needs renewal.
*/
static void expireNowTimerCallback(nsITimer* aTimer, void* aClosure);
nsresult ConstructQueryString(const nsCOMArray<nsNavHistoryQuery>& aQueries,
nsNavHistoryQueryOptions* aOptions,
nsCString& queryString,
bool& aParamsPresent,
StringHash& aAddParams);
nsresult QueryToSelectClause(nsNavHistoryQuery* aQuery,
nsNavHistoryQueryOptions* aOptions,
PRInt32 aQueryIndex,
nsCString* aClause);
nsresult BindQueryClauseParameters(mozIStorageBaseStatement* statement,
PRInt32 aQueryIndex,
nsNavHistoryQuery* aQuery,
nsNavHistoryQueryOptions* aOptions);
nsresult ResultsAsList(mozIStorageStatement* statement,
nsNavHistoryQueryOptions* aOptions,
nsCOMArray<nsNavHistoryResultNode>* aResults);
void TitleForDomain(const nsCString& domain, nsACString& aTitle);
nsresult SetPageTitleInternal(nsIURI* aURI, const nsAString& aTitle);
nsresult FilterResultSet(nsNavHistoryQueryResultNode *aParentNode,
const nsCOMArray<nsNavHistoryResultNode>& aSet,
nsCOMArray<nsNavHistoryResultNode>* aFiltered,
const nsCOMArray<nsNavHistoryQuery>& aQueries,
nsNavHistoryQueryOptions* aOptions);
// observers
nsMaybeWeakPtrArray<nsINavHistoryObserver> mObservers;
// effective tld service
nsCOMPtr<nsIEffectiveTLDService> mTLDService;
nsCOMPtr<nsIIDNService> mIDNService;
// localization
nsCOMPtr<nsIStringBundle> mBundle;
nsCOMPtr<nsIStringBundle> mDateFormatBundle;
nsCOMPtr<nsICollation> mCollation;
// recent events
typedef nsDataHashtable<nsCStringHashKey, PRInt64> RecentEventHash;
RecentEventHash mRecentTyped;
RecentEventHash mRecentLink;
RecentEventHash mRecentBookmark;
// Embed visits tracking.
class VisitHashKey : public nsURIHashKey
{
public:
VisitHashKey(const nsIURI* aURI)
: nsURIHashKey(aURI)
{
}
VisitHashKey(const VisitHashKey& aOther)
: nsURIHashKey(aOther)
{
NS_NOTREACHED("Do not call me!");
}
PRTime visitTime;
};
nsTHashtable<VisitHashKey> mEmbedVisits;
bool CheckIsRecentEvent(RecentEventHash* hashTable,
const nsACString& url);
void ExpireNonrecentEvents(RecentEventHash* hashTable);
// Sessions tracking.
PRInt64 mLastSessionID;
#ifdef MOZ_XUL
nsresult AutoCompleteFeedback(PRInt32 aIndex,
nsIAutoCompleteController *aController);
#endif
// Whether history is enabled or not.
// Will mimic value of the places.history.enabled preference.
bool mHistoryEnabled;
// Frecency preferences.
PRInt32 mNumVisitsForFrecency;
PRInt32 mFirstBucketCutoffInDays;
PRInt32 mSecondBucketCutoffInDays;
PRInt32 mThirdBucketCutoffInDays;
PRInt32 mFourthBucketCutoffInDays;
PRInt32 mFirstBucketWeight;
PRInt32 mSecondBucketWeight;
PRInt32 mThirdBucketWeight;
PRInt32 mFourthBucketWeight;
PRInt32 mDefaultWeight;
PRInt32 mEmbedVisitBonus;
PRInt32 mFramedLinkVisitBonus;
PRInt32 mLinkVisitBonus;
PRInt32 mTypedVisitBonus;
PRInt32 mBookmarkVisitBonus;
PRInt32 mDownloadVisitBonus;
PRInt32 mPermRedirectVisitBonus;
PRInt32 mTempRedirectVisitBonus;
PRInt32 mDefaultVisitBonus;
PRInt32 mUnvisitedBookmarkBonus;
PRInt32 mUnvisitedTypedBonus;
// in nsNavHistoryQuery.cpp
nsresult TokensToQueries(const nsTArray<QueryKeyValuePair>& aTokens,
nsCOMArray<nsNavHistoryQuery>* aQueries,
nsNavHistoryQueryOptions* aOptions);
PRInt64 mTagsFolder;
bool mInPrivateBrowsing;
PRInt8 mHasHistoryEntries;
// Used to enable and disable the observer notifications
bool mCanNotify;
nsCategoryCache<nsINavHistoryObserver> mCacheObservers;
};
#define PLACES_URI_PREFIX "place:"
/* Returns true if the given URI represents a history query. */
inline bool IsQueryURI(const nsCString &uri)
{
return StringBeginsWith(uri, NS_LITERAL_CSTRING(PLACES_URI_PREFIX));
}
/* Extracts the query string from a query URI. */
inline const nsDependentCSubstring QueryURIToQuery(const nsCString &uri)
{
NS_ASSERTION(IsQueryURI(uri), "should only be called for query URIs");
return Substring(uri, NS_LITERAL_CSTRING(PLACES_URI_PREFIX).Length());
}
#endif // nsNavHistory_h_
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