| 1 | #------------------------------------------------------------------------------
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| 2 | # File: MacOS.pm
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| 3 | #
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| 4 | # Description: Read/write MacOS system tags
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| 5 | #
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| 6 | # Revisions: 2017/03/01 - P. Harvey Created
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| 7 | # 2020/10/13 - PH Added ability to read MacOS "._" files
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| 8 | #------------------------------------------------------------------------------
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| 9 |
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| 10 | package Image::ExifTool::MacOS;
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| 11 | use strict;
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| 12 | use vars qw($VERSION);
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| 13 | use Image::ExifTool qw(:DataAccess :Utils);
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| 14 |
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| 15 | $VERSION = '1.11';
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| 16 |
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| 17 | sub MDItemLocalTime($);
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| 18 | sub ProcessATTR($$$);
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| 19 |
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| 20 | my %mdDateInfo = (
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| 21 | ValueConv => \&MDItemLocalTime,
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| 22 | PrintConv => '$self->ConvertDateTime($val)',
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| 23 | );
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| 24 |
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| 25 | # Information decoded from Mac OS sidecar files
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| 26 | %Image::ExifTool::MacOS::Main = (
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| 27 | GROUPS => { 0 => 'File', 1 => 'MacOS' },
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| 28 | NOTES => q{
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| 29 | Note that on some filesystems, MacOS creates sidecar files with names that
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| 30 | begin with "._". ExifTool will read these files if specified, and extract
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| 31 | the information listed in the following table without the need for extra
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| 32 | options, but these files are not writable directly.
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| 33 | },
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| 34 | 2 => {
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| 35 | Name => 'RSRC',
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| 36 | SubDirectory => { TagTable => 'Image::ExifTool::RSRC::Main' },
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| 37 | },
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| 38 | 9 => {
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| 39 | Name => 'ATTR',
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| 40 | SubDirectory => {
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| 41 | TagTable => 'Image::ExifTool::MacOS::XAttr',
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| 42 | ProcessProc => \&ProcessATTR,
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| 43 | },
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| 44 | },
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| 45 | );
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| 46 |
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| 47 | # "mdls" tags (ref PH)
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| 48 | %Image::ExifTool::MacOS::MDItem = (
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| 49 | WRITE_PROC => \&Image::ExifTool::DummyWriteProc,
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| 50 | VARS => { NO_ID => 1 },
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| 51 | GROUPS => { 0 => 'File', 1 => 'MacOS', 2 => 'Other' },
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| 52 | NOTES => q{
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| 53 | MDItem tags are extracted using the "mdls" utility. They are extracted if
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| 54 | any "MDItem*" tag or the MacOS group is specifically requested, or by
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| 55 | setting the L<MDItemTags|../ExifTool.html#MDItemTags> API option to 1 or the L<RequestAll|../ExifTool.html#RequestAll> API option to 2 or
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| 56 | higher. Note that these tags do not necessarily reflect the current
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| 57 | metadata of a file -- it may take some time for the MacOS mdworker daemon to
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| 58 | index the file after a metadata change.
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| 59 | },
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| 60 | MDItemFinderComment => {
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| 61 | Writable => 1,
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| 62 | WritePseudo => 1,
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| 63 | Protected => 1, # (all writable pseudo tags must be protected)
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| 64 | },
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| 65 | MDItemFSLabel => {
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| 66 | Writable => 1,
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| 67 | WritePseudo => 1,
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| 68 | Protected => 1, # (all writable pseudo tags must be protected)
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| 69 | WriteCheck => '$val =~ /^[0-7]$/ ? undef : "Not an integer in the range 0-7"',
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| 70 | PrintConv => {
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| 71 | 0 => '0 (none)',
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| 72 | 1 => '1 (Gray)',
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| 73 | 2 => '2 (Green)',
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| 74 | 3 => '3 (Purple)',
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| 75 | 4 => '4 (Blue)',
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| 76 | 5 => '5 (Yellow)',
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| 77 | 6 => '6 (Red)',
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| 78 | 7 => '7 (Orange)',
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| 79 | },
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| 80 | },
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| 81 | MDItemFSCreationDate => {
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| 82 | Writable => 1,
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| 83 | WritePseudo => 1,
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| 84 | DelCheck => q{"Can't delete"},
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| 85 | Protected => 1, # (all writable pseudo tags must be protected)
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| 86 | Shift => 'Time', # (but not supported yet)
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| 87 | Notes => q{
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| 88 | file creation date. Requires "setfile" for writing. Note that when
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| 89 | reading, it may take a few seconds after writing a file before this value
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| 90 | reflects the change. However, L<FileCreateDate|Extra.html> is updated immediately
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| 91 | },
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| 92 | Groups => { 2 => 'Time' },
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| 93 | ValueConv => \&MDItemLocalTime,
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| 94 | ValueConvInv => '$val',
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| 95 | PrintConv => '$self->ConvertDateTime($val)',
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| 96 | PrintConvInv => '$self->InverseDateTime($val)',
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| 97 | },
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| 98 | MDItemAcquisitionMake => { Groups => { 2 => 'Camera' } },
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| 99 | MDItemAcquisitionModel => { Groups => { 2 => 'Camera' } },
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| 100 | MDItemAltitude => { Groups => { 2 => 'Location' } },
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| 101 | MDItemAperture => { Groups => { 2 => 'Camera' } },
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| 102 | MDItemAudioBitRate => { Groups => { 2 => 'Audio' } },
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| 103 | MDItemAudioChannelCount => { Groups => { 2 => 'Audio' } },
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| 104 | MDItemAuthors => { Groups => { 2 => 'Author' } },
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| 105 | MDItemBitsPerSample => { Groups => { 2 => 'Image' } },
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| 106 | MDItemCity => { Groups => { 2 => 'Location' } },
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| 107 | MDItemCodecs => { },
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| 108 | MDItemColorSpace => { Groups => { 2 => 'Image' } },
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| 109 | MDItemComment => { },
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| 110 | MDItemContentCreationDate => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 111 | MDItemContentCreationDateRanking => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 112 | MDItemContentModificationDate => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 113 | MDItemContentType => { },
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| 114 | MDItemContentTypeTree => { },
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| 115 | MDItemContributors => { },
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| 116 | MDItemCopyright => { Groups => { 2 => 'Author' } },
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| 117 | MDItemCountry => { Groups => { 2 => 'Location' } },
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| 118 | MDItemCreator => { Groups => { 2 => 'Document' } },
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| 119 | MDItemDateAdded => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 120 | MDItemDescription => { },
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| 121 | MDItemDisplayName => { },
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| 122 | MDItemDownloadedDate => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 123 | MDItemDurationSeconds => { PrintConv => 'ConvertDuration($val)' },
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| 124 | MDItemEncodingApplications => { },
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| 125 | MDItemEXIFGPSVersion => { Groups => { 2 => 'Location' }, Description => 'MD Item EXIF GPS Version' },
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| 126 | MDItemEXIFVersion => { },
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| 127 | MDItemExposureMode => { Groups => { 2 => 'Camera' } },
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| 128 | MDItemExposureProgram => { Groups => { 2 => 'Camera' } },
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| 129 | MDItemExposureTimeSeconds => { Groups => { 2 => 'Camera' } },
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| 130 | MDItemFlashOnOff => { Groups => { 2 => 'Camera' } },
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| 131 | MDItemFNumber => { Groups => { 2 => 'Camera' } },
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| 132 | MDItemFocalLength => { Groups => { 2 => 'Camera' } },
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| 133 | MDItemFSContentChangeDate => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 134 | MDItemFSCreatorCode => { Groups => { 2 => 'Author' } },
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| 135 | MDItemFSFinderFlags => { },
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| 136 | MDItemFSHasCustomIcon => { },
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| 137 | MDItemFSInvisible => { },
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| 138 | MDItemFSIsExtensionHidden => { },
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| 139 | MDItemFSIsStationery => { },
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| 140 | MDItemFSName => { },
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| 141 | MDItemFSNodeCount => { },
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| 142 | MDItemFSOwnerGroupID => { },
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| 143 | MDItemFSOwnerUserID => { },
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| 144 | MDItemFSSize => { },
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| 145 | MDItemFSTypeCode => { },
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| 146 | MDItemGPSDateStamp => { Groups => { 2 => 'Time' } },
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| 147 | MDItemGPSStatus => { Groups => { 2 => 'Location' } },
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| 148 | MDItemGPSTrack => { Groups => { 2 => 'Location' } },
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| 149 | MDItemHasAlphaChannel => { Groups => { 2 => 'Image' } },
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| 150 | MDItemImageDirection => { Groups => { 2 => 'Location' } },
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| 151 | MDItemInterestingDateRanking => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 152 | MDItemISOSpeed => { Groups => { 2 => 'Camera' } },
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| 153 | MDItemKeywords => { },
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| 154 | MDItemKind => { },
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| 155 | MDItemLastUsedDate => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 156 | MDItemLastUsedDate_Ranking => { },
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| 157 | MDItemLatitude => { Groups => { 2 => 'Location' } },
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| 158 | MDItemLensModel => { },
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| 159 | MDItemLogicalSize => { },
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| 160 | MDItemLongitude => { Groups => { 2 => 'Location' } },
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| 161 | MDItemMediaTypes => { },
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| 162 | MDItemNumberOfPages => { },
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| 163 | MDItemOrientation => { Groups => { 2 => 'Image' } },
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| 164 | MDItemOriginApplicationIdentifier => { },
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| 165 | MDItemOriginMessageID => { },
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| 166 | MDItemOriginSenderDisplayName => { },
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| 167 | MDItemOriginSenderHandle => { },
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| 168 | MDItemOriginSubject => { },
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| 169 | MDItemPageHeight => { Groups => { 2 => 'Image' } },
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| 170 | MDItemPageWidth => { Groups => { 2 => 'Image' } },
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| 171 | MDItemPhysicalSize => { Groups => { 2 => 'Image' } },
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| 172 | MDItemPixelCount => { Groups => { 2 => 'Image' } },
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| 173 | MDItemPixelHeight => { Groups => { 2 => 'Image' } },
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| 174 | MDItemPixelWidth => { Groups => { 2 => 'Image' } },
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| 175 | MDItemProfileName => { Groups => { 2 => 'Image' } },
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| 176 | MDItemRedEyeOnOff => { Groups => { 2 => 'Camera' } },
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| 177 | MDItemResolutionHeightDPI => { Groups => { 2 => 'Image' } },
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| 178 | MDItemResolutionWidthDPI => { Groups => { 2 => 'Image' } },
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| 179 | MDItemSecurityMethod => { },
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| 180 | MDItemSpeed => { Groups => { 2 => 'Location' } },
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| 181 | MDItemStateOrProvince => { Groups => { 2 => 'Location' } },
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| 182 | MDItemStreamable => { },
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| 183 | MDItemTimestamp => { Groups => { 2 => 'Time' } }, # (time only)
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| 184 | MDItemTitle => { },
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| 185 | MDItemTotalBitRate => { },
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| 186 | MDItemUseCount => { },
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| 187 | MDItemUsedDates => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 188 | MDItemUserDownloadedDate => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 189 | MDItemUserDownloadedUserHandle=> { },
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| 190 | MDItemUserSharedReceivedDate => { },
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| 191 | MDItemUserSharedReceivedRecipient => { },
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| 192 | MDItemUserSharedReceivedRecipientHandle => { },
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| 193 | MDItemUserSharedReceivedSender=> { },
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| 194 | MDItemUserSharedReceivedSenderHandle => { },
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| 195 | MDItemUserSharedReceivedTransport => { },
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| 196 | MDItemUserTags => {
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| 197 | List => 1,
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| 198 | Writable => 1,
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| 199 | WritePseudo => 1,
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| 200 | Protected => 1, # (all writable pseudo tags must be protected)
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| 201 | Notes => q{
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| 202 | requires "tag" utility for writing -- install with "brew install tag". Note
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| 203 | that user tags may not contain a comma, and that duplicate user tags will
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| 204 | not be written
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| 205 | },
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| 206 | },
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| 207 | MDItemVersion => { },
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| 208 | MDItemVideoBitRate => { Groups => { 2 => 'Video' } },
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| 209 | MDItemWhereFroms => { },
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| 210 | MDItemWhiteBalance => { Groups => { 2 => 'Image' } },
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| 211 | # tags used by Apple Mail on .emlx files
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| 212 | com_apple_mail_dateReceived => { Name => 'AppleMailDateReceived', Groups => { 2 => 'Time' }, %mdDateInfo },
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| 213 | com_apple_mail_dateSent => { Name => 'AppleMailDateSent', Groups => { 2 => 'Time' }, %mdDateInfo },
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| 214 | com_apple_mail_flagged => { Name => 'AppleMailFlagged' },
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| 215 | com_apple_mail_messageID => { Name => 'AppleMailMessageID' },
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| 216 | com_apple_mail_priority => { Name => 'AppleMailPriority' },
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| 217 | com_apple_mail_read => { Name => 'AppleMailRead' },
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| 218 | com_apple_mail_repliedTo => { Name => 'AppleMailRepliedTo' },
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| 219 | com_apple_mail_isRemoteAttachment => { Name => 'AppleMailIsRemoteAttachment' },
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| 220 | MDItemAccountHandles => { },
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| 221 | MDItemAccountIdentifier => { },
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| 222 | MDItemAuthorEmailAddresses => { },
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| 223 | MDItemBundleIdentifier => { },
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| 224 | MDItemContentCreationDate_Ranking=>{Groups=> { 2 => 'Time' }, %mdDateInfo },
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| 225 | MDItemDateAdded_Ranking => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 226 | MDItemEmailConversationID => { },
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| 227 | MDItemIdentifier => { },
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| 228 | MDItemInterestingDate_Ranking => { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 229 | MDItemIsApplicationManaged => { },
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| 230 | MDItemIsExistingThread => { },
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| 231 | MDItemIsLikelyJunk => { },
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| 232 | MDItemMailboxes => { },
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| 233 | MDItemMailDateReceived_Ranking=> { Groups => { 2 => 'Time' }, %mdDateInfo },
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| 234 | MDItemPrimaryRecipientEmailAddresses => { },
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| 235 | MDItemRecipients => { },
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| 236 | MDItemSubject => { },
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| 237 | );
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| 238 |
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| 239 | # "xattr" tags
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| 240 | %Image::ExifTool::MacOS::XAttr = (
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| 241 | WRITE_PROC => \&Image::ExifTool::DummyWriteProc,
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| 242 | GROUPS => { 0 => 'File', 1 => 'MacOS', 2 => 'Other' },
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| 243 | VARS => { NO_ID => 1 }, # (id's are too long)
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| 244 | NOTES => q{
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| 245 | XAttr tags are extracted using the "xattr" utility. They are extracted if
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| 246 | any "XAttr*" tag or the MacOS group is specifically requested, or by setting
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| 247 | the L<XAttrTags|../ExifTool.html#XAttrTags> API option to 1 or the L<RequestAll|../ExifTool.html#RequestAll> API option to 2 or higher.
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| 248 | And they extracted by default from MacOS "._" files when reading
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| 249 | these files directly.
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| 250 | },
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| 251 | 'com.apple.FinderInfo' => {
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| 252 | Name => 'XAttrFinderInfo',
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| 253 | ConvertBinary => 1,
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| 254 | # ref https://opensource.apple.com/source/CarbonHeaders/CarbonHeaders-9A581/Finder.h
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| 255 | ValueConv => q{
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| 256 | my @a = unpack('a4a4n3x10nx2N', $$val);
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| 257 | tr/\0//d, $_="'${_}'" foreach @a[0,1];
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| 258 | return "@a";
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| 259 | },
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| 260 | PrintConv => q{
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| 261 | $val =~ s/^('.*?') ('.*?') //s or return $val;
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| 262 | my ($type, $creator) = ($1, $2);
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| 263 | my ($flags, $y, $x, $exFlags, $putAway) = split ' ', $val;
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| 264 | my $label = ($flags >> 1) & 0x07;
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| 265 | my $flags = DecodeBits((($exFlags<<16) | $flags) & 0xfff1, {
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| 266 | 0 => 'OnDesk',
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| 267 | 6 => 'Shared',
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| 268 | 7 => 'HasNoInits',
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| 269 | 8 => 'Inited',
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| 270 | 10 => 'CustomIcon',
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| 271 | 11 => 'Stationery',
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| 272 | 12 => 'NameLocked',
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| 273 | 13 => 'HasBundle',
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| 274 | 14 => 'Invisible',
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| 275 | 15 => 'Alias',
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| 276 | # extended flags
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| 277 | 22 => 'HasRoutingInfo',
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| 278 | 23 => 'ObjectBusy',
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| 279 | 24 => 'CustomBadge',
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| 280 | 31 => 'ExtendedFlagsValid',
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| 281 | });
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| 282 | my $str = "Type=$type Creator=$creator Flags=$flags Label=$label Pos=($x,$y)";
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| 283 | $str .= " Putaway=$putAway" if $putAway;
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| 284 | return $str;
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| 285 | },
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| 286 | },
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| 287 | 'com.apple.quarantine' => {
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| 288 | Name => 'XAttrQuarantine',
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| 289 | Writable => 1,
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| 290 | WritePseudo => 1,
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| 291 | WriteCheck => '"May only delete this tag"',
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| 292 | Protected => 1,
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| 293 | Notes => q{
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| 294 | quarantine information for files downloaded from the internet. May only be
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| 295 | deleted when writing
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| 296 | },
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| 297 | # ($a[1] is the time when the quarantine tag was set)
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| 298 | PrintConv => q{
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| 299 | my @a = split /;/, $val;
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| 300 | $a[0] = 'Flags=' . $a[0];
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| 301 | $a[1] = 'set at ' . ConvertUnixTime(hex $a[1]);
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| 302 | $a[2] = 'by ' . $a[2];
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| 303 | return join ' ', @a;
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| 304 | },
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| 305 | PrintConvInv => '$val',
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| 306 | },
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| 307 | 'com.apple.metadata:com_apple_mail_dateReceived' => {
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| 308 | Name => 'XAttrAppleMailDateReceived',
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| 309 | Groups => { 2 => 'Time' },
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| 310 | },
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| 311 | 'com.apple.metadata:com_apple_mail_dateSent' => {
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| 312 | Name => 'XAttrAppleMailDateSent',
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| 313 | Groups => { 2 => 'Time' },
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| 314 | },
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| 315 | 'com.apple.metadata:com_apple_mail_isRemoteAttachment' => {
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| 316 | Name => 'XAttrAppleMailIsRemoteAttachment',
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| 317 | },
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| 318 | 'com.apple.metadata:kMDItemDownloadedDate' => {
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| 319 | Name => 'XAttrMDItemDownloadedDate',
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| 320 | Groups => { 2 => 'Time' },
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| 321 | },
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| 322 | 'com.apple.metadata:kMDItemFinderComment' => { Name => 'XAttrMDItemFinderComment' },
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| 323 | 'com.apple.metadata:kMDItemWhereFroms' => { Name => 'XAttrMDItemWhereFroms' },
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| 324 | 'com.apple.metadata:kMDLabel' => { Name => 'XAttrMDLabel', Binary => 1 },
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| 325 | 'com.apple.ResourceFork' => { Name => 'XAttrResourceFork', Binary => 1 },
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| 326 | 'com.apple.lastuseddate#PS' => {
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| 327 | Name => 'XAttrLastUsedDate',
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| 328 | Groups => { 2 => 'Time' },
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| 329 | # (first 4 bytes are date/time. Not sure what remaining 12 bytes are for)
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| 330 | RawConv => 'ConvertUnixTime(unpack("V",$$val))',
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| 331 | PrintConv => '$self->ConvertDateTime($val)',
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| 332 | },
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| 333 | );
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| 334 |
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| 335 | #------------------------------------------------------------------------------
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| 336 | # Convert OS MDItem time string to standard EXIF-formatted local time
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| 337 | # Inputs: 0) time string (eg. "2017-02-21 17:21:43 +0000")
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| 338 | # Returns: EXIF-formatted local time string with timezone
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| 339 | sub MDItemLocalTime($)
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| 340 | {
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| 341 | my $val = shift;
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| 342 | $val =~ tr/-/:/;
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| 343 | $val =~ s/ ?([-+]\d{2}):?(\d{2})/$1:$2/;
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| 344 | # convert from UTC to local time
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| 345 | if ($val =~ /\+00:00$/) {
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| 346 | my $time = Image::ExifTool::GetUnixTime($val);
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| 347 | $val = Image::ExifTool::ConvertUnixTime($time, 1) if $time;
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| 348 | }
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| 349 | return $val;
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| 350 | }
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| 351 |
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| 352 | #------------------------------------------------------------------------------
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| 353 | # Set MacOS MDItem and XAttr tags from new tag values
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| 354 | # Inputs: 0) ExifTool ref, 1) file name, 2) list of tags to set
|
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| 355 | # Returns: 1=something was set OK, 0=didn't try, -1=error (and warning set)
|
|---|
| 356 | # Notes: There may be errors even if 1 is returned
|
|---|
| 357 | sub SetMacOSTags($$$)
|
|---|
| 358 | {
|
|---|
| 359 | my ($et, $file, $setTags) = @_;
|
|---|
| 360 | my $result = 0;
|
|---|
| 361 | my $tag;
|
|---|
| 362 |
|
|---|
| 363 | foreach $tag (@$setTags) {
|
|---|
| 364 | my ($nvHash, $f, $v, $attr, $cmd, $err, $silentErr);
|
|---|
| 365 | my $val = $et->GetNewValue($tag, \$nvHash);
|
|---|
| 366 | next unless $nvHash;
|
|---|
| 367 | my $overwrite = $et->IsOverwriting($nvHash);
|
|---|
| 368 | unless ($$nvHash{TagInfo}{List}) {
|
|---|
| 369 | next unless $overwrite;
|
|---|
| 370 | if ($overwrite < 0) {
|
|---|
| 371 | my $operation = $$nvHash{Shift} ? 'Shifting' : 'Conditional replacement';
|
|---|
| 372 | $et->Warn("$operation of MacOS $tag not yet supported");
|
|---|
| 373 | next;
|
|---|
| 374 | }
|
|---|
| 375 | }
|
|---|
| 376 | if ($tag eq 'MDItemFSCreationDate' or $tag eq 'FileCreateDate') {
|
|---|
| 377 | ($f = $file) =~ s/'/'\\''/g;
|
|---|
| 378 | # convert to local time if value has a time zone
|
|---|
| 379 | if ($val =~ /[-+Z]/) {
|
|---|
| 380 | my $time = Image::ExifTool::GetUnixTime($val, 1);
|
|---|
| 381 | $val = Image::ExifTool::ConvertUnixTime($time, 1) if $time;
|
|---|
| 382 | }
|
|---|
| 383 | $val =~ s{(\d{4}):(\d{2}):(\d{2})}{$2/$3/$1}; # reformat for setfile
|
|---|
| 384 | $cmd = "setfile -d '${val}' '${f}'";
|
|---|
| 385 | } elsif ($tag eq 'MDItemUserTags') {
|
|---|
| 386 | # (tested with "tag" version 0.9.0)
|
|---|
| 387 | ($f = $file) =~ s/'/'\\''/g;
|
|---|
| 388 | my @vals = $et->GetNewValue($nvHash);
|
|---|
| 389 | if ($overwrite < 0 and @{$$nvHash{DelValue}}) {
|
|---|
| 390 | # delete specified tags
|
|---|
| 391 | my @dels = @{$$nvHash{DelValue}};
|
|---|
| 392 | s/'/'\\''/g foreach @dels;
|
|---|
| 393 | my $del = join ',', @dels;
|
|---|
| 394 | $err = system "tag -r '${del}' '${f}'>/dev/null 2>&1";
|
|---|
| 395 | unless ($err) {
|
|---|
| 396 | $et->VerboseValue("- $tag", $del);
|
|---|
| 397 | $result = 1;
|
|---|
| 398 | undef $err if @vals; # more to do if there are tags to add
|
|---|
| 399 | }
|
|---|
| 400 | }
|
|---|
| 401 | unless (defined $err) {
|
|---|
| 402 | # add new tags, or overwrite or delete existing tags
|
|---|
| 403 | s/'/'\\''/g foreach @vals;
|
|---|
| 404 | my $opt = $overwrite > 0 ? '-s' : '-a';
|
|---|
| 405 | $val = @vals ? join(',', @vals) : '';
|
|---|
| 406 | $cmd = "tag $opt '${val}' '${f}'";
|
|---|
| 407 | $et->VPrint(1," - $tag = (all)\n") if $overwrite > 0;
|
|---|
| 408 | undef $val if $val eq '';
|
|---|
| 409 | }
|
|---|
| 410 | } elsif ($tag eq 'XAttrQuarantine') {
|
|---|
| 411 | ($f = $file) =~ s/'/'\\''/g;
|
|---|
| 412 | $cmd = "xattr -d com.apple.quarantine '${f}'";
|
|---|
| 413 | $silentErr = 256; # (will get this error if attribute doesn't exist)
|
|---|
| 414 | } else {
|
|---|
| 415 | ($f = $file) =~ s/(["\\])/\\$1/g; # escape necessary characters for script
|
|---|
| 416 | $f =~ s/'/'"'"'/g;
|
|---|
| 417 | if ($tag eq 'MDItemFinderComment') {
|
|---|
| 418 | # (write finder comment using osascript instead of xattr
|
|---|
| 419 | # because it is more work to construct the necessary bplist)
|
|---|
| 420 | $val = '' unless defined $val; # set to empty string instead of deleting
|
|---|
| 421 | $v = $et->Encode($val, 'UTF8');
|
|---|
| 422 | $v =~ s/(["\\])/\\$1/g;
|
|---|
| 423 | $v =~ s/'/'"'"'/g;
|
|---|
| 424 | $attr = 'comment';
|
|---|
| 425 | } else { # $tag eq 'MDItemFSLabel'
|
|---|
| 426 | $v = $val ? 8 - $val : 0; # convert from label to label index (0 for no label)
|
|---|
| 427 | $attr = 'label index';
|
|---|
| 428 | }
|
|---|
| 429 | $cmd = qq(osascript -e 'set fp to POSIX file "$f" as alias' -e \\
|
|---|
| 430 | 'tell application "Finder" to set $attr of file fp to "$v"');
|
|---|
| 431 | }
|
|---|
| 432 | if (defined $cmd) {
|
|---|
| 433 | $err = system $cmd . '>/dev/null 2>&1'; # (pipe all output to /dev/null)
|
|---|
| 434 | }
|
|---|
| 435 | if (not $err) {
|
|---|
| 436 | $et->VerboseValue("+ $tag", $val) if defined $val;
|
|---|
| 437 | $result = 1;
|
|---|
| 438 | } elsif (not $silentErr or $err != $silentErr) {
|
|---|
| 439 | $cmd =~ s/ .*//s;
|
|---|
| 440 | $et->Warn(qq{Error $err running "$cmd" to set $tag});
|
|---|
| 441 | $result = -1 unless $result;
|
|---|
| 442 | }
|
|---|
| 443 | }
|
|---|
| 444 | return $result;
|
|---|
| 445 | }
|
|---|
| 446 |
|
|---|
| 447 | #------------------------------------------------------------------------------
|
|---|
| 448 | # Extract MacOS metadata item tags
|
|---|
| 449 | # Inputs: 0) ExifTool object ref, 1) file name
|
|---|
| 450 | sub ExtractMDItemTags($$)
|
|---|
| 451 | {
|
|---|
| 452 | local $_;
|
|---|
| 453 | my ($et, $file) = @_;
|
|---|
| 454 | my ($fn, $tag, $val, $tmp);
|
|---|
| 455 |
|
|---|
| 456 | ($fn = $file) =~ s/([`"\$\\])/\\$1/g; # escape necessary characters
|
|---|
| 457 | $et->VPrint(0, '(running mdls)');
|
|---|
| 458 | my @mdls = `mdls "$fn" 2> /dev/null`; # get MacOS metadata
|
|---|
| 459 | if ($? or not @mdls) {
|
|---|
| 460 | $et->Warn('Error running "mdls" to extract MDItem tags');
|
|---|
| 461 | return;
|
|---|
| 462 | }
|
|---|
| 463 | my $tagTablePtr = GetTagTable('Image::ExifTool::MacOS::MDItem');
|
|---|
| 464 | $$et{INDENT} .= '| ';
|
|---|
| 465 | $et->VerboseDir('MDItem');
|
|---|
| 466 | foreach (@mdls) {
|
|---|
| 467 | chomp;
|
|---|
| 468 | if (ref $val ne 'ARRAY') {
|
|---|
| 469 | s/^k?(\w+)\s*= // or next;
|
|---|
| 470 | $tag = $1;
|
|---|
| 471 | $_ eq '(' and $val = [ ], next; # (start of a list)
|
|---|
| 472 | $_ = '' if $_ eq '(null)';
|
|---|
| 473 | s/^"// and s/"$//; # remove quotes if they exist
|
|---|
| 474 | $val = $_;
|
|---|
| 475 | } elsif ($_ eq ')') { # (end of a list)
|
|---|
| 476 | $_ = $$val[0];
|
|---|
| 477 | next unless defined $_;
|
|---|
| 478 | } else {
|
|---|
| 479 | # add item to list
|
|---|
| 480 | s/^ //; # remove leading spaces
|
|---|
| 481 | s/,$//; # remove trailing comma
|
|---|
| 482 | $_ = '' if $_ eq '(null)';
|
|---|
| 483 | s/^"// and s/"$//; # remove quotes if they exist
|
|---|
| 484 | s/\\"/"/g; # un-escape quotes
|
|---|
| 485 | $_ = $et->Decode($_, 'UTF8');
|
|---|
| 486 | push @$val, $_;
|
|---|
| 487 | next;
|
|---|
| 488 | }
|
|---|
| 489 | # add to Extra tags if not done already
|
|---|
| 490 | unless ($$tagTablePtr{$tag}) {
|
|---|
| 491 | # check for a date/time format
|
|---|
| 492 | my %tagInfo;
|
|---|
| 493 | %tagInfo = (
|
|---|
| 494 | Groups => { 2 => 'Time' },
|
|---|
| 495 | ValueConv => \&MDItemLocalTime,
|
|---|
| 496 | PrintConv => '$self->ConvertDateTime($val)',
|
|---|
| 497 | ) if /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}/;
|
|---|
| 498 | # change tags like "com_apple_mail_xxx" to "AppleMailXxx"
|
|---|
| 499 | ($tmp = $tag) =~ s/^com_//; # remove leading "com_"
|
|---|
| 500 | $tmp =~ s/_([a-z])/\u$1/g; # use CamelCase
|
|---|
| 501 | $tagInfo{Name} = Image::ExifTool::MakeTagName($tmp);
|
|---|
| 502 | $tagInfo{List} = 1 if ref $val eq 'ARRAY';
|
|---|
| 503 | $tagInfo{Groups}{2} = 'Audio' if $tag =~ /Audio/;
|
|---|
| 504 | $tagInfo{Groups}{2} = 'Author' if $tag =~ /(Copyright|Author)/;
|
|---|
| 505 | $et->VPrint(0, " [adding $tag]\n");
|
|---|
| 506 | AddTagToTable($tagTablePtr, $tag, \%tagInfo);
|
|---|
| 507 | }
|
|---|
| 508 | $val = $et->Decode($val, 'UTF8') unless ref $val;
|
|---|
| 509 | $et->HandleTag($tagTablePtr, $tag, $val);
|
|---|
| 510 | undef $val;
|
|---|
| 511 | }
|
|---|
| 512 | $$et{INDENT} =~ s/\| $//;
|
|---|
| 513 | }
|
|---|
| 514 |
|
|---|
| 515 |
|
|---|
| 516 | #------------------------------------------------------------------------------
|
|---|
| 517 | # Read MacOS XAttr value
|
|---|
| 518 | # Inputs: 0) ExifTool object ref, 1) file name
|
|---|
| 519 | sub ReadXAttrValue($$$$)
|
|---|
| 520 | {
|
|---|
| 521 | my ($et, $tagTablePtr, $tag, $val) = @_;
|
|---|
| 522 | # add to our table if necessary
|
|---|
| 523 | unless ($$tagTablePtr{$tag}) {
|
|---|
| 524 | my $name;
|
|---|
| 525 | # generate tag name from attribute name
|
|---|
| 526 | if ($tag =~ /^com\.apple\.(.*)$/) {
|
|---|
| 527 | ($name = $1) =~ s/^metadata:_?k//;
|
|---|
| 528 | $name =~ s/^metadata:(com_)?//;
|
|---|
| 529 | } else {
|
|---|
| 530 | $name = $tag;
|
|---|
| 531 | }
|
|---|
| 532 | $name =~ s/[.:_]([a-z])/\U$1/g;
|
|---|
| 533 | $name = 'XAttr' . ucfirst $name;
|
|---|
| 534 | my %tagInfo = ( Name => $name );
|
|---|
| 535 | $tagInfo{Groups} = { 2 => 'Time' } if $tag=~/Date$/;
|
|---|
| 536 | $et->VPrint(0, " [adding $tag]\n");
|
|---|
| 537 | AddTagToTable($tagTablePtr, $tag, \%tagInfo);
|
|---|
| 538 | }
|
|---|
| 539 | if ($val =~ /^bplist0/) {
|
|---|
| 540 | my %dirInfo = ( DataPt => \$val );
|
|---|
| 541 | require Image::ExifTool::PLIST;
|
|---|
| 542 | if (Image::ExifTool::PLIST::ProcessBinaryPLIST($et, \%dirInfo, $tagTablePtr)) {
|
|---|
| 543 | return undef if ref $dirInfo{Value} eq 'HASH';
|
|---|
| 544 | $val = $dirInfo{Value}
|
|---|
| 545 | } else {
|
|---|
| 546 | $et->Warn("Error decoding $$tagTablePtr{$tag}{Name}");
|
|---|
| 547 | return undef;
|
|---|
| 548 | }
|
|---|
| 549 | }
|
|---|
| 550 | if (not ref $val and ($val =~ /\0/ or length($val) > 200) or $tag eq 'XAttrMDLabel') {
|
|---|
| 551 | my $buff = $val;
|
|---|
| 552 | $val = \$buff;
|
|---|
| 553 | }
|
|---|
| 554 | return $val;
|
|---|
| 555 | }
|
|---|
| 556 |
|
|---|
| 557 | #------------------------------------------------------------------------------
|
|---|
| 558 | # Read MacOS extended attribute tags using 'xattr' utility
|
|---|
| 559 | # Inputs: 0) ExifTool object ref, 1) file name
|
|---|
| 560 | sub ExtractXAttrTags($$)
|
|---|
| 561 | {
|
|---|
| 562 | local $_;
|
|---|
| 563 | my ($et, $file) = @_;
|
|---|
| 564 | my ($fn, $tag, $val, $warn);
|
|---|
| 565 |
|
|---|
| 566 | ($fn = $file) =~ s/([`"\$\\])/\\$1/g; # escape necessary characters
|
|---|
| 567 | $et->VPrint(0, '(running xattr)');
|
|---|
| 568 | my @xattr = `xattr -lx "$fn" 2> /dev/null`; # get MacOS extended attributes
|
|---|
| 569 | if ($? or not @xattr) {
|
|---|
| 570 | $? and $et->Warn('Error running "xattr" to extract XAttr tags');
|
|---|
| 571 | return;
|
|---|
| 572 | }
|
|---|
| 573 | my $tagTablePtr = GetTagTable('Image::ExifTool::MacOS::XAttr');
|
|---|
| 574 | $$et{INDENT} .= '| ';
|
|---|
| 575 | $et->VerboseDir('XAttr');
|
|---|
| 576 | push @xattr, ''; # (for a list terminator)
|
|---|
| 577 | foreach (@xattr) {
|
|---|
| 578 | chomp;
|
|---|
| 579 | if (s/^[\dA-Fa-f]{8}//) {
|
|---|
| 580 | $tag or $warn = 1, next;
|
|---|
| 581 | s/\|.*//;
|
|---|
| 582 | tr/ //d;
|
|---|
| 583 | (/[^\dA-Fa-f]/ or length($_) & 1) and $warn = 2, next;
|
|---|
| 584 | $val = '' unless defined $val;
|
|---|
| 585 | $val .= pack('H*', $_);
|
|---|
| 586 | next;
|
|---|
| 587 | } elsif ($tag and defined $val) {
|
|---|
| 588 | $val = ReadXAttrValue($et, $tagTablePtr, $tag, $val);
|
|---|
| 589 | $et->HandleTag($tagTablePtr, $tag, $val) if defined $val;
|
|---|
| 590 | undef $tag;
|
|---|
| 591 | undef $val;
|
|---|
| 592 | }
|
|---|
| 593 | next unless length;
|
|---|
| 594 | s/:$// or $warn = 3, next; # attribute name must have trailing ":"
|
|---|
| 595 | defined $val and $warn = 4, undef $val;
|
|---|
| 596 | # remove random ID after kMDLabel in tag ID
|
|---|
| 597 | ($tag = $_) =~ s/^com.apple.metadata:kMDLabel_.*/com.apple.metadata:kMDLabel/s;
|
|---|
| 598 | }
|
|---|
| 599 | $warn and $et->Warn(qq{Error $warn parsing "xattr" output});
|
|---|
| 600 | $$et{INDENT} =~ s/\| $//;
|
|---|
| 601 | }
|
|---|
| 602 |
|
|---|
| 603 | #------------------------------------------------------------------------------
|
|---|
| 604 | # Extract MacOS file creation date/time
|
|---|
| 605 | # Inputs: 0) ExifTool object ref, 1) file name
|
|---|
| 606 | sub GetFileCreateDate($$)
|
|---|
| 607 | {
|
|---|
| 608 | local $_;
|
|---|
| 609 | my ($et, $file) = @_;
|
|---|
| 610 | my ($fn, $tag, $val, $tmp);
|
|---|
| 611 |
|
|---|
| 612 | ($fn = $file) =~ s/([`"\$\\])/\\$1/g; # escape necessary characters
|
|---|
| 613 | $et->VPrint(0, '(running stat)');
|
|---|
| 614 | my $time = `stat -f '%SB' -t '%Y:%m:%d %H:%M:%S%z' "$fn" 2> /dev/null`;
|
|---|
| 615 | if ($? or not $time or $time !~ s/([-+]\d{2})(\d{2})\s*$/$1:$2/) {
|
|---|
| 616 | $et->Warn('Error running "stat" to extract FileCreateDate');
|
|---|
| 617 | return;
|
|---|
| 618 | }
|
|---|
| 619 | $$et{SET_GROUP1} = 'MacOS';
|
|---|
| 620 | $et->FoundTag(FileCreateDate => $time);
|
|---|
| 621 | delete $$et{SET_GROUP1};
|
|---|
| 622 | }
|
|---|
| 623 |
|
|---|
| 624 | #------------------------------------------------------------------------------
|
|---|
| 625 | # Read ATTR metadata from "._" file
|
|---|
| 626 | # Inputs: 0) ExifTool ref, 1) dirInfo ref, 2) tag table ref
|
|---|
| 627 | # Return: 1 on success
|
|---|
| 628 | # (ref https://www.swiftforensics.com/2018/11/the-dot-underscore-file-format.html)
|
|---|
| 629 | sub ProcessATTR($$$)
|
|---|
| 630 | {
|
|---|
| 631 | my ($et, $dirInfo, $tagTablePtr) = @_;
|
|---|
| 632 | my $dataPt = $$dirInfo{DataPt};
|
|---|
| 633 | my $dataPos = $$dirInfo{DataPos};
|
|---|
| 634 | my $dataLen = length $$dataPt;
|
|---|
| 635 |
|
|---|
| 636 | $dataLen >= 58 and $$dataPt =~ /^.{34}ATTR/s or $et->Warn('Invalid ATTR header'), return 0;
|
|---|
| 637 | my $entries = Get32u($dataPt, 66);
|
|---|
| 638 | $et->VerboseDir('ATTR', $entries);
|
|---|
| 639 | # (Note: The RAF is not in $dirInfo because it would break RSRC reading --
|
|---|
| 640 | # the RSCR block uses relative offsets, while the ATTR block uses absolute! grrr!)
|
|---|
| 641 | my $raf = $$et{RAF};
|
|---|
| 642 | my $pos = 70; # first entry is after ATTR header
|
|---|
| 643 | my $i;
|
|---|
| 644 | for ($i=0; $i<$entries; ++$i) {
|
|---|
| 645 | $pos + 12 > $dataLen and $et->Warn('Truncated ATTR entry'), last;
|
|---|
| 646 | my $off = Get32u($dataPt, $pos);
|
|---|
| 647 | my $len = Get32u($dataPt, $pos + 4);
|
|---|
| 648 | my $n = Get8u($dataPt, $pos + 10); # number of characters in tag name
|
|---|
| 649 | $pos + 11 + $n > $dataLen and $et->Warn('Truncated ATTR name'), last;
|
|---|
| 650 | $off -= $dataPos; # convert to relative offset (grrr!)
|
|---|
| 651 | $off < 0 or $off > $dataLen and $et->Warn('Invalid ATTR offset'), last;
|
|---|
| 652 | my $tag = substr($$dataPt, $pos + 11, $n);
|
|---|
| 653 | $tag =~ s/\0+$//; # remove null terminator
|
|---|
| 654 | # remove random ID after kMDLabel in tag ID
|
|---|
| 655 | $tag =~ s/^com.apple.metadata:kMDLabel_.*/com.apple.metadata:kMDLabel/s;
|
|---|
| 656 | $off + $len > $dataLen and $et->Warn('Truncated ATTR value'), last;
|
|---|
| 657 | my $val = ReadXAttrValue($et, $tagTablePtr, $tag, substr($$dataPt, $off, $len));
|
|---|
| 658 | $et->HandleTag($tagTablePtr, $tag, $val,
|
|---|
| 659 | DataPt => $dataPt,
|
|---|
| 660 | DataPos => $dataPos,
|
|---|
| 661 | Start => $off,
|
|---|
| 662 | Size => $len,
|
|---|
| 663 | ) if defined $val;
|
|---|
| 664 | $pos += (11 + $n + 3) & -4; # step to next entry (on even 4-byte boundary)
|
|---|
| 665 | }
|
|---|
| 666 | return 1;
|
|---|
| 667 | }
|
|---|
| 668 |
|
|---|
| 669 | #------------------------------------------------------------------------------
|
|---|
| 670 | # Read information from a MacOS "._" sidecar file
|
|---|
| 671 | # Inputs: 0) ExifTool ref, 1) dirInfo ref
|
|---|
| 672 | # Returns: 1 on success, 0 if this wasn't a valid "._" file
|
|---|
| 673 | # (ref https://www.swiftforensics.com/2018/11/the-dot-underscore-file-format.html)
|
|---|
| 674 | sub ProcessMacOS($$)
|
|---|
| 675 | {
|
|---|
| 676 | my ($et, $dirInfo) = @_;
|
|---|
| 677 | my $raf = $$dirInfo{RAF};
|
|---|
| 678 | my ($hdr, $buff, $i);
|
|---|
| 679 |
|
|---|
| 680 | return 0 unless $raf->Read($hdr, 26) == 26 and $hdr =~ /^\0\x05\x16\x07\0(.)\0\0Mac OS X /s;
|
|---|
| 681 | my $ver = ord $1;
|
|---|
| 682 | # (extension may be anything, so just echo back the incoming file extension if it exists)
|
|---|
| 683 | $et->SetFileType(undef, undef, $$et{FILE_EXT});
|
|---|
| 684 | $ver == 2 or $et->Warn("Unsupported file version $ver"), return 1;
|
|---|
| 685 | SetByteOrder('MM');
|
|---|
| 686 | my $tagTablePtr = GetTagTable('Image::ExifTool::MacOS::Main');
|
|---|
| 687 | my $entries = Get16u(\$hdr, 0x18);
|
|---|
| 688 | $et->VerboseDir('MacOS', $entries);
|
|---|
| 689 | $raf->Read($hdr, $entries * 12) == $entries * 12 or $et->Warn('Truncated header'), return 1;
|
|---|
| 690 | for ($i=0; $i<$entries; ++$i) {
|
|---|
| 691 | my $pos = $i * 12;
|
|---|
| 692 | my $tag = Get32u(\$hdr, $pos);
|
|---|
| 693 | my $off = Get32u(\$hdr, $pos + 4);
|
|---|
| 694 | my $len = Get32u(\$hdr, $pos + 8);
|
|---|
| 695 | $len > 100000000 and $et->Warn('Record size too large'), last;
|
|---|
| 696 | $raf->Seek($off,0) and $raf->Read($buff,$len) == $len or $et->Warn('Truncated record'), last;
|
|---|
| 697 | $et->HandleTag($tagTablePtr, $tag, undef, DataPt => \$buff, DataPos => $off, Index => $i);
|
|---|
| 698 | }
|
|---|
| 699 | return 1;
|
|---|
| 700 | }
|
|---|
| 701 |
|
|---|
| 702 | 1; # end
|
|---|
| 703 |
|
|---|
| 704 | __END__
|
|---|
| 705 |
|
|---|
| 706 | =head1 NAME
|
|---|
| 707 |
|
|---|
| 708 | Image::ExifTool::MacOS - Read/write MacOS system tags
|
|---|
| 709 |
|
|---|
| 710 | =head1 SYNOPSIS
|
|---|
| 711 |
|
|---|
| 712 | This module is used by Image::ExifTool
|
|---|
| 713 |
|
|---|
| 714 | =head1 DESCRIPTION
|
|---|
| 715 |
|
|---|
| 716 | This module contains definitions required by Image::ExifTool to extract
|
|---|
| 717 | MDItem* and XAttr* tags on MacOS systems using the "mdls" and "xattr"
|
|---|
| 718 | utilities respectively. It also reads metadata directly from the MacOS "_."
|
|---|
| 719 | sidecar files that are used on some filesystems to store file attributes.
|
|---|
| 720 | Writable tags use "xattr", "setfile" or "osascript" for writing.
|
|---|
| 721 |
|
|---|
| 722 | =head1 AUTHOR
|
|---|
| 723 |
|
|---|
| 724 | Copyright 2003-2021, Phil Harvey (philharvey66 at gmail.com)
|
|---|
| 725 |
|
|---|
| 726 | This library is free software; you can redistribute it and/or modify it
|
|---|
| 727 | under the same terms as Perl itself.
|
|---|
| 728 |
|
|---|
| 729 | =head1 SEE ALSO
|
|---|
| 730 |
|
|---|
| 731 | L<Image::ExifTool::TagNames/MacOS Tags>,
|
|---|
| 732 | L<Image::ExifTool(3pm)|Image::ExifTool>
|
|---|
| 733 |
|
|---|
| 734 | =cut
|
|---|
| 735 |
|
|---|
