diff options
Diffstat (limited to 'unotools')
| -rw-r--r-- | unotools/source/ucbhelper/tempfile.cxx | 82 |
1 files changed, 80 insertions, 2 deletions
diff --git a/unotools/source/ucbhelper/tempfile.cxx b/unotools/source/ucbhelper/tempfile.cxx index 3d5814f241b6..9fb5d25d5fb4 100644 --- a/unotools/source/ucbhelper/tempfile.cxx +++ b/unotools/source/ucbhelper/tempfile.cxx @@ -237,6 +237,84 @@ OUString lcl_createName( } } +OUString lcl_createName_BROKEN( + const OUString& rLeadingChars, sal_Int16 nRadix, + bool bFirst, const OUString* pExtension, const OUString* pParent, + bool bDirectory, bool bKeep, bool bLock) +{ + // 36 ** 6 == 2176782336 + unsigned long const nMaxRadix = 36; + unsigned long const nMax = (nMaxRadix*nMaxRadix*nMaxRadix*nMaxRadix*nMaxRadix*nMaxRadix); + static unsigned long nSeed = Time::GetSystemTicks() % nMax; + + // get correct directory + OUString aName = ConstructTempDir_Impl( pParent ); + + bool bUseNumber = bFirst; + // now use special naming scheme ( name takes leading chars and an index counting up from zero + aName += rLeadingChars; + for ( unsigned long i=nSeed;; ) + { + OUString aTmp( aName ); + if ( bUseNumber ) + aTmp += OUString::number(nSeed, nRadix); + bUseNumber = true; + if ( pExtension ) + aTmp += *pExtension; + else + aTmp += ".tmp"; + if ( bDirectory ) + { + FileBase::RC err = Directory::create( aTmp ); + if ( err == FileBase::E_None ) + { + // !bKeep: only for creating a name, not a file or directory + if ( bKeep || Directory::remove( aTmp ) == FileBase::E_None ) + return aTmp; + else + return OUString(); + } + else if ( err != FileBase::E_EXIST ) + // if f.e. name contains invalid chars stop trying to create dirs + return OUString(); + } + else + { + DBG_ASSERT( bKeep, "Too expensive, use directory for creating name!" ); + File aFile( aTmp ); +#ifdef UNX + /* RW permission for the user only! */ + mode_t old_mode = umask(077); +#endif + FileBase::RC err = aFile.open(osl_File_OpenFlag_Create | (bLock ? 0 : osl_File_OpenFlag_NoLock)); +#ifdef UNX + umask(old_mode); +#endif + if ( err == FileBase::E_None || (bLock && err == FileBase::E_NOLCK) ) + { + aFile.close(); + return aTmp; + } + else if ( err != FileBase::E_EXIST ) + { + // if f.e. name contains invalid chars stop trying to create dirs + // but if there is a folder with such name proceed further + + DirectoryItem aTmpItem; + FileStatus aTmpStatus( osl_FileStatus_Mask_Type ); + if ( DirectoryItem::get( aTmp, aTmpItem ) != FileBase::E_None + || aTmpItem.getFileStatus( aTmpStatus ) != FileBase::E_None + || aTmpStatus.getFileType() != FileStatus::Directory ) + return OUString(); + } + } + nSeed = (nSeed + 1) % nMax; + if (i == nSeed) { + return OUString(); + } + } +} + OUString CreateTempName_Impl( const OUString* pParent, bool bKeep, bool bDir = true ) { OUString aEyeCatcher = "lu"; @@ -249,8 +327,8 @@ OUString CreateTempName_Impl( const OUString* pParent, bool bKeep, bool bDir = t } #endif #endif - return lcl_createName( - aEyeCatcher, Time::GetSystemTicks(), 36, true, 0, pParent, bDir, bKeep, + return lcl_createName_BROKEN( + aEyeCatcher, 36, true, 0, pParent, bDir, bKeep, false); } |