624 lines
27 KiB
Perl
624 lines
27 KiB
Perl
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#------------------------------------------------------------------------------
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# File: Validate.pm
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#
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# Description: Additional metadata validation
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#
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# Created: 2017/01/18 - P. Harvey
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#
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# Notes: My apologies for the convoluted logic contained herein, but it
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# is done this way to retro-fit the Validate feature into the
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# existing ExifTool code while avoiding the possibility of
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# introducing potential bugs or slowing down processing when the
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# Validate feature is not used.
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#------------------------------------------------------------------------------
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package Image::ExifTool::Validate;
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use strict;
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use vars qw($VERSION %exifSpec);
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$VERSION = '1.13';
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use Image::ExifTool qw(:Utils);
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use Image::ExifTool::Exif;
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# EXIF table tag ID's which are part of the EXIF 2.31 specification
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# (also used by BuildTagLookup to add underlines in HTML version of EXIF Tag Table)
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%exifSpec = (
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0x1 => 1,
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0x100 => 1, 0x8298 => 1, 0x9207 => 1, 0xa217 => 1,
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0x101 => 1, 0x829a => 1, 0x9208 => 1, 0xa300 => 1,
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0x102 => 1, 0x829d => 1, 0x9209 => 1, 0xa301 => 1,
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0x103 => 1, 0x8769 => 1, 0x920a => 1, 0xa302 => 1,
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0x106 => 1, 0x8822 => 1, 0x9214 => 1, 0xa401 => 1,
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0x10e => 1, 0x8824 => 1, 0x927c => 1, 0xa402 => 1,
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0x10f => 1, 0x8825 => 1, 0x9286 => 1, 0xa403 => 1,
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0x110 => 1, 0x8827 => 1, 0x9290 => 1, 0xa404 => 1,
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0x111 => 1, 0x8828 => 1, 0x9291 => 1, 0xa405 => 1,
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0x112 => 1, 0x8830 => 1, 0x9292 => 1, 0xa406 => 1,
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0x115 => 1, 0x8831 => 1, 0x9400 => 1, 0xa407 => 1,
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0x116 => 1, 0x8832 => 1, 0x9401 => 1, 0xa408 => 1,
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0x117 => 1, 0x8833 => 1, 0x9402 => 1, 0xa409 => 1,
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0x11a => 1, 0x8834 => 1, 0x9403 => 1, 0xa40a => 1,
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0x11b => 1, 0x8835 => 1, 0x9404 => 1, 0xa40b => 1,
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0x11c => 1, 0x9000 => 1, 0x9405 => 1, 0xa40c => 1,
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0x128 => 1, 0x9003 => 1, 0xa000 => 1, 0xa420 => 1,
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0x12d => 1, 0x9004 => 1, 0xa001 => 1, 0xa430 => 1,
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0x131 => 1, 0x9010 => 1, 0xa002 => 1, 0xa431 => 1,
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0x132 => 1, 0x9011 => 1, 0xa003 => 1, 0xa432 => 1,
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0x13b => 1, 0x9012 => 1, 0xa004 => 1, 0xa433 => 1,
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0x13e => 1, 0x9101 => 1, 0xa005 => 1, 0xa434 => 1,
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0x13f => 1, 0x9102 => 1, 0xa20b => 1, 0xa435 => 1,
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0x201 => 1, 0x9201 => 1, 0xa20c => 1,
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0x202 => 1, 0x9202 => 1, 0xa20e => 1,
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0x211 => 1, 0x9203 => 1, 0xa20f => 1,
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0x212 => 1, 0x9204 => 1, 0xa210 => 1,
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0x213 => 1, 0x9205 => 1, 0xa214 => 1,
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0x214 => 1, 0x9206 => 1, 0xa215 => 1,
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);
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# tags standard in various RAW file formats
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my %otherSpec = (
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CR2 => { 0xc5d8 => 1, 0xc5d9 => 1, 0xc5e0 => 1, 0xc640 => 1, 0xc6dc => 1, 0xc6dd => 1 },
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NEF => { 0x9216 => 1, 0x9217 => 1 },
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DNG => { 0x882a => 1, 0x9211 => 1, 0x9216 => 1 },
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ARW => { 0x7000 => 1, 0x7001 => 1, 0x7010 => 1, 0x7011 => 1, 0x7020 => 1,
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0x7031 => 1, 0x7032 => 1, 0x7034 => 1, 0x7035 => 1, 0x7036 => 1, 0x7037 => 1,
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0x7310 => 1, 0x7313 => 1, 0x7316 => 1, 0x74c7 => 1, 0x74c8 => 1, 0xa500 => 1 },
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RW2 => { All => 1 }, # ignore all unknown tags in RW2
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RWL => { All => 1 },
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RAF => { All => 1 }, # (temporary)
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DCR => { All => 1 },
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KDC => { All => 1 },
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JXR => { All => 1 },
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SRW => { 0xa010 => 1, 0xa011 => 1, 0xa101 => 1, 0xa102 => 1 },
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NRW => { 0x9216 => 1, 0x9217 => 1 },
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X3F => { 0xa500 => 1 },
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);
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# standard format for tags (not necessary for exifSpec or GPS tags where Writable is defined)
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my %stdFormat = (
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ExifIFD => {
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0xa002 => 'int(16|32)u',
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0xa003 => 'int(16|32)u',
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},
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InteropIFD => {
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0x01 => 'string',
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0x02 => 'undef',
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0x1000 => 'string',
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0x1001 => 'int(16|32)u',
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0x1002 => 'int(16|32)u',
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},
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IFD => {
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# TIFF, EXIF, XMP, IPTC, ICC_Profile and PrintIM standard tags:
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0xfe => 'int32u', 0x11f => 'rational64u', 0x14a => 'int32u', 0x205 => 'int16u',
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0xff => 'int16u', 0x120 => 'int32u', 0x14c => 'int16u', 0x206 => 'int16u',
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0x100 => 'int(16|32)u', 0x121 => 'int32u', 0x14d => 'string', 0x207 => 'int32u',
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0x101 => 'int(16|32)u', 0x122 => 'int16u', 0x14e => 'int16u', 0x208 => 'int32u',
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0x107 => 'int16u', 0x123 => 'int16u', 0x150 => 'int(8|16)u', 0x209 => 'int32u',
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0x108 => 'int16u', 0x124 => 'int32u', 0x151 => 'string', 0x211 => 'rational64u',
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0x109 => 'int16u', 0x125 => 'int32u', 0x152 => 'int16u', 0x212 => 'int16u',
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0x10a => 'int16u', 0x129 => 'int16u', 0x153 => 'int16u', 0x213 => 'int16u',
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0x10d => 'string', 0x13c => 'string', 0x154 => '.*', 0x214 => 'rational64u',
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0x111 => 'int(16|32)u', 0x13d => 'int16u', 0x155 => '.*', 0x2bc => 'int8u',
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0x116 => 'int(16|32)u', 0x140 => 'int16u', 0x156 => 'int16u', 0x828d => 'int16u',
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0x117 => 'int(16|32)u', 0x141 => 'int16u', 0x15b => 'undef', 0x828e => 'int8u',
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0x118 => 'int16u', 0x142 => 'int(16|32)u', 0x200 => 'int16u', 0x83bb => 'int32u',
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0x119 => 'int16u', 0x143 => 'int(16|32)u', 0x201 => 'int32u', 0x8649 => 'int8u',
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0x11d => 'string', 0x144 => 'int32u', 0x202 => 'int32u', 0x8773 => 'undef',
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0x11e => 'rational64u', 0x145 => 'int(16|32)u', 0x203 => 'int16u', 0xc4a5 => 'undef',
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# Windows Explorer tags:
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0x9c9b => 'int8u', 0x9c9d => 'int8u', 0x9c9f => 'int8u',
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0x9c9c => 'int8u', 0x9c9e => 'int8u',
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# GeoTiff tags:
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0x830e => 'double', 0x8482 => 'double', 0x87af => 'int16u', 0x87b1 => 'string',
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0x8480 => 'double', 0x85d8 => 'double', 0x87b0 => 'double',
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# DNG tags:
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0xc615 => '(string|int8u)', 0xc6d3 => '',
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0xc61a => '(int16u|int32u|rational64u)', 0xc6f4 => '(string|int8u)',
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0xc61d => 'int(16|32)u', 0xc6f6 => '(string|int8u)',
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0xc61f => '(int16u|int32u|rational64u)', 0xc6f8 => '(string|int8u)',
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0xc620 => '(int16u|int32u|rational64u)', 0xc6fe => '(string|int8u)',
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0xc628 => '(int16u|rational64u)', 0xc716 => '(string|int8u)',
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0xc634 => 'int8u', 0xc717 => '(string|int8u)',
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0xc640 => '', 0xc718 => '(string|int8u)',
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0xc660 => '', 0xc71e => 'int(16|32)u',
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0xc68b => '(string|int8u)', 0xc71f => 'int(16|32)u',
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0xc68d => 'int(16|32)u', 0xc791 => 'int(16|32)u',
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0xc68e => 'int(16|32)u', 0xc792 => 'int(16|32)u',
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0xc6d2 => '', 0xc793 => '(int16u|int32u|rational64u)',
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},
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);
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# generate lookup for any IFD
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my %stdFormatAnyIFD = map { %{$stdFormat{$_}} } keys %stdFormat;
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# tag values to validate based on file type (from EXIF specification)
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# - validation code may access $val and %val, and returns 1 on success,
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# or error message otherwise ('' for a generic message)
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# - entry is undef if tag must not exist (same as 'not defined $val' in code)
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my %validValue = (
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JPEG => {
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IFD0 => {
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0x100 => undef, # ImageWidth
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0x101 => undef, # ImageLength
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0x102 => undef, # BitsPerSample
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0x103 => undef, # Compression
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0x106 => undef, # PhotometricInterpretation
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0x111 => undef, # StripOffsets
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0x115 => undef, # SamplesPerPixel
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0x116 => undef, # RowsPerStrip
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0x117 => undef, # StripByteCounts
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0x11a => 'defined $val', # XResolution
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0x11b => 'defined $val', # YResolution
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0x11c => undef, # PlanarConfiguration
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0x128 => '$val =~ /^[123]$/', # ResolutionUnit
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0x201 => undef, # JPEGInterchangeFormat
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0x202 => undef, # JPEGInterchangeFormatLength
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0x212 => undef, # YCbCrSubSampling
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0x213 => '$val =~ /^[12]$/', # YCbCrPositioning
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},
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IFD1 => {
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0x100 => undef, # ImageWidth
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0x101 => undef, # ImageLength
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0x102 => undef, # BitsPerSample
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0x103 => '$val == 6', # Compression
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0x106 => undef, # PhotometricInterpretation
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0x111 => undef, # StripOffsets
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0x115 => undef, # SamplesPerPixel
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0x116 => undef, # RowsPerStrip
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0x117 => undef, # StripByteCounts
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0x11a => 'defined $val', # XResolution
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0x11b => 'defined $val', # YResolution
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0x11c => undef, # PlanarConfiguration
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0x128 => '$val =~ /^[123]$/', # ResolutionUnit
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0x201 => 'defined $val', # JPEGInterchangeFormat
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0x202 => 'defined $val', # JPEGInterchangeFormatLength
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0x212 => undef, # YCbCrSubSampling
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},
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ExifIFD => {
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0x9000 => 'defined $val', # ExifVersion
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0x9101 => 'defined $val', # ComponentsConfiguration
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0xa000 => 'defined $val', # FlashpixVersion
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0xa001 => '$val == 1 or $val == 0xffff', # ColorSpace
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0xa002 => 'defined $val', # PixelXDimension
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0xa003 => 'defined $val', # PixelYDimension
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},
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},
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TIFF => {
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IFD0 => {
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0x100 => 'defined $val', # ImageWidth
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0x101 => 'defined $val', # ImageLength
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0x102 => 'defined $val', # BitsPerSample
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0x103 => q{
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not defined $val or $val =~ /^(1|5|6|32773)$/ or
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($val == 2 and (not defined $val{0x102} or $val{0x102} == 1));
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}, # Compression
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0x106 => '$val =~ /^[0123]$/', # PhotometricInterpretation
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0x111 => 'defined $val', # StripOffsets
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# SamplesPerPixel
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0x115 => q{
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my $pi = $val{0x106} || 0;
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my $xtra = ($val{0x152} ? scalar(split ' ', $val{0x152}) : 0);
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if ($pi == 2 or $pi == 6) {
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return $val == 3 + $xtra;
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} elsif ($pi == 5) {
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return $val == 4 + $xtra;
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} else {
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return 1;
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}
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},
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0x116 => 'defined $val', # RowsPerStrip
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0x117 => 'defined $val', # StripByteCounts
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0x11a => 'defined $val', # XResolution
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0x11b => 'defined $val', # YResolution
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0x128 => '$val =~ /^[123]$/', # ResolutionUnit
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# ColorMap (must be palette image with correct number of colors)
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0x140 => q{
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return '' if defined $val{0x106} and $val{0x106} == 3 xor defined $val;
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return 1 if not defined $val or length($val) == 6 * 2 ** ($val{0x102} || 0);
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return 'Invalid count for';
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},
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0x201 => undef, # JPEGInterchangeFormat
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0x202 => undef, # JPEGInterchangeFormatLength
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},
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ExifIFD => {
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0x9000 => 'defined $val', # ExifVersion
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0x9101 => undef, # ComponentsConfiguration
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0x9102 => undef, # CompressedBitsPerPixel
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0xa000 => 'defined $val', # FlashpixVersion
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0xa001 => '$val == 1 or $val == 0xffff', # ColorSpace
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0xa002 => undef, # PixelXDimension
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0xa003 => undef, # PixelYDimension
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},
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InteropIFD => {
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0x0001 => undef, # InteropIndex
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},
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},
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);
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# validity ranges for constrained date/time fields
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my @validDateField = (
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[ 'Month', 1, 12 ],
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[ 'Day', 1, 31 ],
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[ 'Hour', 0, 23 ],
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[ 'Minutes', 0, 59 ],
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[ 'Seconds', 0, 59 ],
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[ 'TZhr', 0, 14 ],
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[ 'TZmin', 0, 59 ],
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);
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# "Validate" tag information
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my %validateInfo = (
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Groups => { 0 => 'ExifTool', 1 => 'ExifTool', 2 => 'ExifTool' },
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Notes => q{
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generated only if specifically requested. Requesting this tag automatically
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enables the L<API Validate option|../ExifTool.html#Validate>, imposing
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additional validation checks when extracting metadata. Returns the number
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of errors, warnings and minor warnings encountered. Note that the Validate
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feature focuses mainly on validation of TIFF/EXIF metadata and files
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},
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PrintConv => {
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'0 0 0' => 'OK',
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OTHER => sub {
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my @val = split ' ', shift;
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my @rtn;
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push @rtn, sprintf('%d Error%s', $val[0], $val[0] == 1 ? '' : 's') if $val[0];
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push @rtn, sprintf('%d Warning%s', $val[1], $val[1] == 1 ? '' : 's') if $val[1];
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if ($val[2]) {
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my $str = ($val[1] == $val[2] ? ($val[1] == 1 ? '' : 'all ') : "$val[2] ");
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$rtn[-1] .= " (${str}minor)";
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}
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return join(' and ', @rtn);
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},
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},
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);
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# add "Validate" tag to Extra table
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AddTagToTable(\%Image::ExifTool::Extra, Validate => \%validateInfo, 1);
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#------------------------------------------------------------------------------
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# Validate the raw value of a tag
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# Inputs: 0) ExifTool ref, 1) tag key, 2) raw tag value
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# Returns: nothing, but issues a minor Warning if a problem was detected
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sub ValidateRaw($$$)
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{
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my ($self, $tag, $val) = @_;
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my $tagInfo = $$self{TAG_INFO}{$tag};
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my $wrn;
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||
|
|
# evaluate Validate code if specified
|
||
|
|
if ($$tagInfo{Validate}) {
|
||
|
|
local $SIG{'__WARN__'} = \&Image::ExifTool::SetWarning;
|
||
|
|
undef $Image::ExifTool::evalWarning;
|
||
|
|
#### eval Validate ($self, $val, $tagInfo)
|
||
|
|
my $wrn = eval $$tagInfo{Validate};
|
||
|
|
my $err = $Image::ExifTool::evalWarning || $@;
|
||
|
|
if ($wrn or $err) {
|
||
|
|
my $name = $$tagInfo{Table}{GROUPS}{0} . ':' . Image::ExifTool::GetTagName($tag);
|
||
|
|
$self->Warn("Validate $name: $err", 1) if $err;
|
||
|
|
$self->Warn("$wrn for $name", 1) if $wrn;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
# check for unknown values in PrintConv lookup for all standard EXIF tags
|
||
|
|
if (ref $$tagInfo{PrintConv} eq 'HASH' and ($$tagInfo{Table}{SHORT_NAME} eq 'GPS::Main' or
|
||
|
|
($$tagInfo{Table} eq \%Image::ExifTool::Exif::Main and $exifSpec{$$tagInfo{TagID}})))
|
||
|
|
{
|
||
|
|
my $prt = $self->GetValue($tag, 'PrintConv');
|
||
|
|
$wrn = 'Unknown value for' if $prt and $prt =~ /^Unknown \(/;
|
||
|
|
}
|
||
|
|
$wrn = 'Undefined value for' if $val eq 'undef';
|
||
|
|
if ($wrn) {
|
||
|
|
my $name = $$self{DIR_NAME} . ':' . Image::ExifTool::GetTagName($tag);
|
||
|
|
$self->Warn("$wrn $name", 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Validate raw EXIF date/time value
|
||
|
|
# Inputs: 0) date/time value
|
||
|
|
# Returns: error string
|
||
|
|
sub ValidateExifDate($)
|
||
|
|
{
|
||
|
|
my $val = shift;
|
||
|
|
if ($val =~ /^\d{4}:(\d{2}):(\d{2}) (\d{2}):(\d{2}):(\d{2})$/) {
|
||
|
|
my @a = ($1,$2,$3,$4,$5);
|
||
|
|
my ($i, @bad);
|
||
|
|
for ($i=0; $i<@a; ++$i) {
|
||
|
|
next if $a[$i] eq ' ' or ($a[$i] >= $validDateField[$i][1] and $a[$i] <= $validDateField[$i][2]);
|
||
|
|
push @bad, $validDateField[$i][0];
|
||
|
|
}
|
||
|
|
return join('+', @bad) . ' out of range' if @bad;
|
||
|
|
# the EXIF specification allows blank fields or an entire blank value
|
||
|
|
} elsif ($val ne ' : : : : ' and $val ne ' ') {
|
||
|
|
return 'Invalid date/time format';
|
||
|
|
}
|
||
|
|
return undef; # OK!
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Validate EXIF-reformatted XMP date/time value
|
||
|
|
# Inputs: 0) date/time value
|
||
|
|
# Returns: error string
|
||
|
|
sub ValidateXMPDate($)
|
||
|
|
{
|
||
|
|
my $val = shift;
|
||
|
|
if ($val =~ /^\d{4}$/ or
|
||
|
|
$val =~ /^\d{4}:(\d{2})$/ or
|
||
|
|
$val =~ /^\d{4}:(\d{2}):(\d{2})$/ or
|
||
|
|
$val =~ /^\d{4}:(\d{2}):(\d{2}) (\d{2}):(\d{2})()(Z|[-+](\d{2}):(\d{2}))?$/ or
|
||
|
|
$val =~ /^\d{4}:(\d{2}):(\d{2}) (\d{2}):(\d{2}):(\d{2})(Z|[-+](\d{2}):(\d{2}))?$/ or
|
||
|
|
$val =~ /^\d{4}:(\d{2}):(\d{2}) (\d{2}):(\d{2}):(\d{2})\.?\d*(Z|[-+](\d{2}):(\d{2}))?$/)
|
||
|
|
{
|
||
|
|
my @a = ($1,$2,$3,$4,$5,$7,$8);
|
||
|
|
my ($i, @bad);
|
||
|
|
for ($i=0; $i<@a; ++$i) {
|
||
|
|
last unless defined $a[$i];
|
||
|
|
next if $a[$i] eq '' or ($a[$i] >= $validDateField[$i][1] and $a[$i] <= $validDateField[$i][2]);
|
||
|
|
push @bad, $validDateField[$i][0];
|
||
|
|
}
|
||
|
|
return join('+', @bad) . ' out of range' if @bad;
|
||
|
|
} else {
|
||
|
|
return 'Invalid date/time format';
|
||
|
|
}
|
||
|
|
return undef; # OK!
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Validate EXIF tag
|
||
|
|
# Inputs: 0) ExifTool ref, 1) tag table ref, 2) tag ID, 3) tagInfo ref,
|
||
|
|
# 4) previous tag ID, 5) IFD name, 6) number of values, 7) value format string
|
||
|
|
# Returns: Nothing, but sets Warning tags if any problems are found
|
||
|
|
sub ValidateExif($$$$$$$$)
|
||
|
|
{
|
||
|
|
my ($et, $tagTablePtr, $tag, $tagInfo, $lastTag, $ifd, $count, $formatStr) = @_;
|
||
|
|
|
||
|
|
$et->WarnOnce("Entries in $ifd are out of order") if $tag <= $lastTag;
|
||
|
|
|
||
|
|
# (get tagInfo for unknown tags if Unknown option not used)
|
||
|
|
if (not defined $tagInfo and $$tagTablePtr{$tag} and ref $$tagTablePtr{$tag} eq 'HASH') {
|
||
|
|
$tagInfo = $$tagTablePtr{$tag};
|
||
|
|
}
|
||
|
|
if (defined $tagInfo) {
|
||
|
|
my $ti = $tagInfo || $$tagTablePtr{$tag};
|
||
|
|
$ti = $$ti[-1] if ref $ti eq 'ARRAY';
|
||
|
|
my $stdFmt = $stdFormat{$ifd} || $stdFormat{IFD};
|
||
|
|
if (defined $$stdFmt{All} or ($tagTablePtr eq \%Image::ExifTool::Exif::Main and
|
||
|
|
($exifSpec{$tag} or $$stdFmt{$tag} or
|
||
|
|
($tag >= 0xc612 and $tag <= 0xc7b5 and not defined $$stdFmt{$tag}))) or # (DNG tags)
|
||
|
|
$$tagTablePtr{SHORT_NAME} eq 'GPS::Main')
|
||
|
|
{
|
||
|
|
my $wgp = $$ti{WriteGroup} || $$tagTablePtr{WRITE_GROUP};
|
||
|
|
if ($wgp and $wgp ne $ifd and $wgp ne 'All' and not $$ti{OffsetPair} and
|
||
|
|
($ifd =~ /^(Sub|Profile)?IFD\d*$/ xor $wgp =~ /^(Sub)?IFD\d*$/) and
|
||
|
|
($$ti{Writable} or $$ti{WriteGroup}) and $ifd !~ /^SRF\d+$/)
|
||
|
|
{
|
||
|
|
$et->Warn(sprintf('Wrong IFD for 0x%.4x %s (should be %s not %s)', $tag, $$ti{Name}, $wgp, $ifd));
|
||
|
|
}
|
||
|
|
my $fmt = $$stdFmt{$tag} || $$ti{Writable};
|
||
|
|
if ($fmt and $formatStr !~ /^$fmt$/ and (not $tagInfo or
|
||
|
|
not $$tagInfo{IsOffset} or $Image::ExifTool::Exif::intFormat{$formatStr}))
|
||
|
|
{
|
||
|
|
$et->Warn(sprintf('Non-standard format (%s) for %s 0x%.4x %s', $formatStr, $ifd, $tag, $$ti{Name}))
|
||
|
|
}
|
||
|
|
} elsif ($stdFormatAnyIFD{$tag}) {
|
||
|
|
if ($$ti{Writable} || $$ti{WriteGroup}) {
|
||
|
|
my $wgp = $$ti{WriteGroup} || $$tagTablePtr{WRITE_GROUP};
|
||
|
|
if ($wgp and $wgp ne $ifd) {
|
||
|
|
$et->Warn(sprintf('Wrong IFD for 0x%.4x %s (should be %s not %s)', $tag, $$ti{Name}, $wgp, $ifd));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elsif (not $otherSpec{$$et{VALUE}{FileType}} or
|
||
|
|
(not $otherSpec{$$et{VALUE}{FileType}}{$tag} and not $otherSpec{$$et{VALUE}{FileType}}{All}))
|
||
|
|
{
|
||
|
|
if ($tagTablePtr eq \%Image::ExifTool::Exif::Main or $$tagInfo{Unknown}) {
|
||
|
|
$et->Warn(sprintf('Non-standard %s tag 0x%.4x %s', $ifd, $tag, $$ti{Name}), 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
# change expected count from read Format to Writable size
|
||
|
|
my $tiCount = $$ti{Count};
|
||
|
|
if ($tiCount) {
|
||
|
|
if ($$ti{Format} and $$ti{Writable} and
|
||
|
|
$Image::ExifTool::Exif::formatNumber{$$ti{Format}} and
|
||
|
|
$Image::ExifTool::Exif::formatNumber{$$ti{Writable}})
|
||
|
|
{
|
||
|
|
my $s1 = $Image::ExifTool::Exif::formatSize[$Image::ExifTool::Exif::formatNumber{$$ti{Format}}];
|
||
|
|
my $s2 = $Image::ExifTool::Exif::formatSize[$Image::ExifTool::Exif::formatNumber{$$ti{Writable}}];
|
||
|
|
$tiCount = int($tiCount * $s1 / $s2);
|
||
|
|
}
|
||
|
|
if ($tiCount > 0 and $count != $tiCount) {
|
||
|
|
$et->Warn(sprintf('Non-standard count (%d) for %s 0x%.4x %s', $count, $ifd, $tag, $$ti{Name}));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elsif (not $otherSpec{$$et{VALUE}{FileType}} or
|
||
|
|
(not $otherSpec{$$et{VALUE}{FileType}}{$tag} and not $otherSpec{$$et{VALUE}{FileType}}{All}))
|
||
|
|
{
|
||
|
|
$et->Warn(sprintf('Unknown %s tag 0x%.4x', $ifd, $tag), 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Validate image data offsets/sizes
|
||
|
|
# Inputs: 0) ExifTool ref, 1) offset info hash ref (arrays of tagInfo/value pairs, keyed by tagID)
|
||
|
|
# 2) directory name, 3) optional flag for minor warning
|
||
|
|
sub ValidateOffsetInfo($$$;$)
|
||
|
|
{
|
||
|
|
local $_;
|
||
|
|
my ($et, $offsetInfo, $dirName, $minor) = @_;
|
||
|
|
|
||
|
|
my $fileSize = $$et{VALUE}{FileSize} or return;
|
||
|
|
|
||
|
|
# (don't test RWZ files and some other file types)
|
||
|
|
return if $$et{DontValidateImageData};
|
||
|
|
# (Minolta A200 uses wrong byte order for these)
|
||
|
|
return if $$et{TIFF_TYPE} eq 'MRW' and $dirName eq 'IFD0' and $$et{Model} =~ /^DiMAGE A200/;
|
||
|
|
# (don't test 3FR, RWL or RW2 files)
|
||
|
|
return if $$et{TIFF_TYPE} =~ /^(3FR|RWL|RW2)$/;
|
||
|
|
|
||
|
|
Image::ExifTool::Exif::ValidateImageData($et, $offsetInfo, $dirName);
|
||
|
|
|
||
|
|
# loop through all offsets
|
||
|
|
while (%$offsetInfo) {
|
||
|
|
my ($id1) = sort keys %$offsetInfo;
|
||
|
|
my $offsets = $$offsetInfo{$id1};
|
||
|
|
delete $$offsetInfo{$id1};
|
||
|
|
next unless ref $offsets eq 'ARRAY';
|
||
|
|
my $id2 = $$offsets[0]{OffsetPair};
|
||
|
|
unless (defined $id2 and $$offsetInfo{$id2}) {
|
||
|
|
unless ($$offsets[0]{NotRealPair} or (defined $id2 and $id2 == -1)) {
|
||
|
|
my $corr = $$offsets[0]{IsOffset} ? 'size' : 'offset';
|
||
|
|
$et->Warn("$dirName:$$offsets[0]{Name} is missing the corresponding $corr tag") unless $minor;
|
||
|
|
}
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
my $sizes = $$offsetInfo{$id2};
|
||
|
|
delete $$offsetInfo{$id2};
|
||
|
|
($sizes, $offsets) = ($offsets, $sizes) if $$sizes[0]{IsOffset};
|
||
|
|
my @offsets = split ' ', $$offsets[1];
|
||
|
|
my @sizes = split ' ', $$sizes[1];
|
||
|
|
if (@sizes != @offsets) {
|
||
|
|
$et->Warn(sprintf('Wrong number of values in %s 0x%.4x %s',
|
||
|
|
$dirName, $$offsets[0]{TagID}, $$offsets[0]{Name}), $minor);
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
while (@offsets) {
|
||
|
|
my $start = pop @offsets;
|
||
|
|
my $end = $start + pop @sizes;
|
||
|
|
$et->WarnOnce("$dirName:$$offsets[0]{Name} is zero", $minor) if $start == 0;
|
||
|
|
$et->WarnOnce("$dirName:$$sizes[0]{Name} is zero", $minor) if $start == $end;
|
||
|
|
next unless $end > $fileSize;
|
||
|
|
if ($start >= $fileSize) {
|
||
|
|
if ($start == 0xffffffff) {
|
||
|
|
$et->Warn("$dirName:$$offsets[0]{Name} is invalid (0xffffffff)", $minor);
|
||
|
|
} else {
|
||
|
|
$et->Warn("$dirName:$$offsets[0]{Name} is past end of file", $minor);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$et->Warn("$dirName:$$offsets[0]{Name}+$$sizes[0]{Name} runs past end of file", $minor);
|
||
|
|
}
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Finish Validating tags
|
||
|
|
# Inputs: 0) ExifTool ref, 1) True to generate Validate tag
|
||
|
|
sub FinishValidate($$)
|
||
|
|
{
|
||
|
|
my ($et, $mkTag) = @_;
|
||
|
|
|
||
|
|
my $fileType = $$et{FILE_TYPE};
|
||
|
|
$fileType = $$et{TIFF_TYPE} if $fileType eq 'TIFF';
|
||
|
|
|
||
|
|
if ($validValue{$fileType}) {
|
||
|
|
my ($grp, $tag, %val);
|
||
|
|
local $SIG{'__WARN__'} = \&Image::ExifTool::SetWarning;
|
||
|
|
foreach $grp (sort keys %{$validValue{$fileType}}) {
|
||
|
|
next unless $$et{FOUND_DIR}{$grp};
|
||
|
|
# get all tags in this group
|
||
|
|
my ($key, %val, %info, $minor);
|
||
|
|
foreach $key (keys %{$$et{VALUE}}) {
|
||
|
|
next unless $et->GetGroup($key, 1) eq $grp;
|
||
|
|
next if $$et{TAG_EXTRA}{$key} and $$et{TAG_EXTRA}{$key}{G3}; # ignore sub-documents
|
||
|
|
# fill in %val lookup with values based on tag ID
|
||
|
|
my $tag = $$et{TAG_INFO}{$key}{TagID};
|
||
|
|
$val{$tag} = $$et{VALUE}{$key};
|
||
|
|
# save TagInfo ref for later
|
||
|
|
$info{$tag} = $$et{TAG_INFO}{$key};
|
||
|
|
}
|
||
|
|
# make quick lookup for values based on tag ID
|
||
|
|
my $validValue = $validValue{$fileType}{$grp};
|
||
|
|
foreach $tag (sort { $a <=> $b } keys %$validValue) {
|
||
|
|
my $val = $val{$tag};
|
||
|
|
my ($pre, $post);
|
||
|
|
if (defined $$validValue{$tag}) {
|
||
|
|
#### eval ($val, %val)
|
||
|
|
my $result = eval $$validValue{$tag};
|
||
|
|
if (not defined $result) {
|
||
|
|
$pre = 'Internal error validating';
|
||
|
|
} elsif ($result eq '') {
|
||
|
|
$pre = defined $val ? 'Invalid value for' : "Missing required $fileType";
|
||
|
|
} else {
|
||
|
|
next if $result == '1';
|
||
|
|
$pre = $result;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
next unless defined $val;
|
||
|
|
$post = "is not allowed in $fileType";
|
||
|
|
$minor = 1;
|
||
|
|
}
|
||
|
|
my $name;
|
||
|
|
if ($info{$tag}) {
|
||
|
|
$name = $info{$tag}{Name};
|
||
|
|
} else {
|
||
|
|
my $table = 'Image::ExifTool::'.($grp eq 'GPS' ? 'GPS' : 'Exif').'::Main';
|
||
|
|
my $tagInfo = GetTagTable($table)->{$tag};
|
||
|
|
$tagInfo = $$tagInfo[0] if ref $tagInfo eq 'ARRAY';
|
||
|
|
$name = $tagInfo ? $$tagInfo{Name} : '<unknown>';
|
||
|
|
}
|
||
|
|
next if $$et{WrongFormat} and $$et{WrongFormat}{"$grp:$name"};
|
||
|
|
$pre ? ($pre .= ' ') : ($pre = '');
|
||
|
|
$post ? ($post = ' '.$post) : ($post = '');
|
||
|
|
$et->Warn(sprintf('%s%s tag 0x%.4x %s%s', $pre, $grp, $tag, $name, $post), $minor);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
# validate file extension
|
||
|
|
if ($$et{FILENAME} ne '') {
|
||
|
|
my $fileExt = ($$et{FILENAME} =~ /^.*\.([^.]+)$/s) ? uc($1) : '';
|
||
|
|
my $extFileType = Image::ExifTool::GetFileType($fileExt);
|
||
|
|
if ($extFileType and $extFileType ne $fileType) {
|
||
|
|
my $normExt = $$et{VALUE}{FileTypeExtension};
|
||
|
|
if ($normExt and $normExt ne $fileExt) {
|
||
|
|
my $lkup = $Image::ExifTool::fileTypeLookup{$fileExt};
|
||
|
|
if (ref $lkup or $lkup ne $normExt) {
|
||
|
|
$et->Warn("File has wrong extension (should be $normExt, not $fileExt)");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
# generate Validate tag if necessary
|
||
|
|
if ($mkTag) {
|
||
|
|
my (@num, $key);
|
||
|
|
push @num, $$et{VALUE}{Error} ? ($$et{DUPL_TAG}{Error} || 0) + 1 : 0,
|
||
|
|
$$et{VALUE}{Warning} ? ($$et{DUPL_TAG}{Warning} || 0) + 1 : 0, 0;
|
||
|
|
for ($key = 'Warning'; ; ) {
|
||
|
|
++$num[2] if $$et{VALUE}{$key} and $$et{VALUE}{$key} =~ /^\[minor\]/i;
|
||
|
|
$key = $et->NextTagKey($key) or last;
|
||
|
|
}
|
||
|
|
$et->FoundTag(Validate => "@num");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
1; # end
|
||
|
|
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
Image::ExifTool::Validate - Additional metadata validation
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
This module is used by Image::ExifTool
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
This module contains additional routines and definitions used when the
|
||
|
|
ExifTool Validate option is enabled.
|
||
|
|
|
||
|
|
=head1 AUTHOR
|
||
|
|
|
||
|
|
Copyright 2003-2018, Phil Harvey (phil at owl.phy.queensu.ca)
|
||
|
|
|
||
|
|
This library is free software; you can redistribute it and/or modify it
|
||
|
|
under the same terms as Perl itself.
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<Image::ExifTool(3pm)|Image::ExifTool>,
|
||
|
|
L<Image::ExifTool::TagNames/Extra Tags>
|
||
|
|
|
||
|
|
=cut
|