function interpretIFD($ifd_data)
{
// Check that the IFD array is valid
if ($ifd_data === false || $ifd_data === null) {
// the IFD array is NOT valid - exit
return null;
}
$ifd_interpreted = array();
// Cycle through each tag in the IFD
foreach ($ifd_data as $tagid => $exif_tag) {
// Ignore the non numeric elements - they aren't tags
if (!is_numeric($tagid)) {
// Skip Tags Name
} else {
if ($exif_tag['Decoded'] == true) {
// Check if the Tag has been decoded successfully
// This tag has been successfully decoded
// Check if the tag is a sub-IFD
if ($exif_tag['Type'] == "SubIFD") {
// This is a sub-IFD tag
// Add a sub-heading for the sub-IFD
$ifd_interpreted[$exif_tag['Tag Name']] = array();
// Cycle through each sub-IFD in the chain
foreach ($exif_tag['Data'] as $subIFD) {
// Interpret this sub-IFD and add the html to the secondary output
$ifd_interpreted[$exif_tag['Tag Name']][] = zmgJpeg_metadataPlugin::interpretIFD($subIFD, $filename);
}
} else {
if ($exif_tag['Type'] == "Maker Note") {
// Check if the tag is a makernote
// This is a Makernote Tag
// Interpret the Makernote and add the html to the secondary output
$ifd_interpreted['Makernote'] = Interpret_Makernote_to_HTML($exif_tag, $filename);
} else {
if ($exif_tag['Type'] == "IPTC") {
// Check if this is a IPTC/NAA Record within the EXIF IFD
// This is a IPTC/NAA Record, interpret it
$ifd_interpreted['IPTC'] = Interpret_IPTC_to_HTML($exif_tag['Data']);
} else {
if ($exif_tag['Type'] == "XMP") {
// Change: Check for embedded XMP as of version 1.11
// Check if this is a XMP Record within the EXIF IFD
// This is a XMP Record, interpret it
$ifd_interpreted['XMP'] = Interpret_XMP_to_HTML($exif_tag['Data']);
} else {
if ($exif_tag['Type'] == "IRB") {
// Change: Check for embedded IRB as of version 1.11
// Check if this is a Photoshop IRB Record within the EXIF IFD
// This is a Photoshop IRB Record, interpret it and output to the secondary html
$ifd_interpreted['IRB'] = Interpret_IRB_to_HTML($exif_tag['Data'], $filename);
} else {
if ($exif_tag['Type'] == "Numeric") {
// Check if the tag is Numeric
// Numeric Tag - Output text value as is.
$ifd_interpreted[$exif_tag['Tag Name']] = $exif_tag['Text Value'];
} else {
// Other tag - Output text as preformatted
//$ifd_interpreted[$exif_tag['Tag Name']] = trim($exif_tag['Text Value']);
}
}
}
}
}
}
}
}
}
return $ifd_interpreted;
}
function Interpret_IRB_to_HTML($IRB_array, $filename)
{
// Create a string to receive the HTML
$output_str = "";
// Check if the Photoshop IRB array is valid
if ($IRB_array !== FALSE) {
// Create another string to receive secondary HTML to be appended at the end
$secondary_output_str = "";
// Add the Heading to the HTML
$output_str .= "<h2 class=\"Photoshop_Main_Heading\">Contains Photoshop Information Resource Block (IRB)</h2>";
// Add Table to the HTML
$output_str .= "<table class=\"Photoshop_Table\" border=1>\n";
// Cycle through each of the Photoshop IRB records, creating HTML for each
foreach ($IRB_array as $IRB_Resource) {
// Check if the entry is a known Photoshop IRB resource
// Get the Name of the Resource
if (array_key_exists($IRB_Resource['ResID'], $GLOBALS["Photoshop_ID_Names"])) {
$Resource_Name = $GLOBALS['Photoshop_ID_Names'][$IRB_Resource['ResID']];
} else {
// Unknown Resource - Make appropriate name
$Resource_Name = "Unknown Resource (" . $IRB_Resource['ResID'] . ")";
}
// Add HTML for the resource as appropriate
switch ($IRB_Resource['ResID']) {
case 0x404:
// IPTC-NAA IIM Record
$secondary_output_str .= Interpret_IPTC_to_HTML(get_IPTC($IRB_Resource['ResData']));
break;
case 0x40b:
// URL
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><a href=\"" . $IRB_Resource['ResData'] . "\">" . htmlentities($IRB_Resource['ResData']) . "</a></td></tr>\n";
break;
case 0x40a:
// Copyright Marked
if (hexdec(bin2hex($IRB_Resource['ResData'])) == 1) {
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>Image is Copyrighted Material</pre></td></tr>\n";
} else {
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>Image is Not Copyrighted Material</pre></td></tr>\n";
}
break;
case 0x40d:
// Global Lighting Angle
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>Global lighting angle for effects layer = " . hexdec(bin2hex($IRB_Resource['ResData'])) . " degrees</pre></td></tr>\n";
break;
case 0x419:
// Global Altitude
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>Global Altitude = " . hexdec(bin2hex($IRB_Resource['ResData'])) . "</pre></td></tr>\n";
break;
case 0x421:
// Version Info
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= "Version = " . hexdec(bin2hex(substr($IRB_Resource['ResData'], 0, 4))) . "\n";
$output_str .= "Has Real Merged Data = " . ord($IRB_Resource['ResData'][4]) . "\n";
$writer_size = hexdec(bin2hex(substr($IRB_Resource['ResData'], 5, 4))) * 2;
$output_str .= "Writer Name = " . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], 9, $writer_size), TRUE) . "\n";
$reader_size = hexdec(bin2hex(substr($IRB_Resource['ResData'], 9 + $writer_size, 4))) * 2;
$output_str .= "Reader Name = " . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], 13 + $writer_size, $reader_size), TRUE) . "\n";
$output_str .= "File Version = " . hexdec(bin2hex(substr($IRB_Resource['ResData'], 13 + $writer_size + $reader_size, 4))) . "\n";
$output_str .= "</pre></td></tr>\n";
break;
case 0x411:
// ICC Untagged
if ($IRB_Resource['ResData'] == "") {
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>Intentionally untagged - any assumed ICC profile handling disabled</pre></td></tr>\n";
} else {
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>Unknown value (0x" . bin2hex($IRB_Resource['ResData']) . ")</pre></td></tr>\n";
}
break;
case 0x41a:
// Slices
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\">";
// Unpack the first 24 bytes
$Slices_Info = unpack("NVersion/NBound_top/NBound_left/NBound_bottom/NBound_right/NStringlen", $IRB_Resource['ResData']);
$output_str .= "Version = " . $Slices_Info['Version'] . "<br>\n";
$output_str .= "Bounding Rectangle = Top:" . $Slices_Info['Bound_top'] . ", Left:" . $Slices_Info['Bound_left'] . ", Bottom:" . $Slices_Info['Bound_bottom'] . ", Right:" . $Slices_Info['Bound_right'] . " (Pixels)<br>\n";
$Slicepos = 24;
// Extract a Unicode String
$output_str .= "Text = '" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], 24, $Slices_Info['Stringlen'] * 2), TRUE) . "'<br>\n";
$Slicepos += $Slices_Info['Stringlen'] * 2;
// Unpack the number of Slices
$Num_Slices = hexdec(bin2hex(substr($IRB_Resource['ResData'], $Slicepos, 4)));
$output_str .= "Number of Slices = " . $Num_Slices . "\n";
$Slicepos += 4;
// Cycle through the slices
for ($i = 1; $i <= $Num_Slices; $i++) {
$output_str .= "<br><br>Slice {$i}:<br>\n";
// Unpack the first 16 bytes of the slice
$SliceA = unpack("NID/NGroupID/NOrigin/NStringlen", substr($IRB_Resource['ResData'], $Slicepos));
$Slicepos += 16;
$output_str .= "ID = " . $SliceA['ID'] . "<br>\n";
$output_str .= "Group ID = " . $SliceA['GroupID'] . "<br>\n";
$output_str .= "Origin = " . $SliceA['Origin'] . "<br>\n";
// Extract a Unicode String
$output_str .= "Text = '" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], $Slicepos, $SliceA['Stringlen'] * 2), TRUE) . "'<br>\n";
$Slicepos += $SliceA['Stringlen'] * 2;
// Unpack the next 24 bytes of the slice
$SliceB = unpack("NType/NLeftPos/NTopPos/NRightPos/NBottomPos/NURLlen", substr($IRB_Resource['ResData'], $Slicepos));
$Slicepos += 24;
$output_str .= "Type = " . $SliceB['Type'] . "<br>\n";
$output_str .= "Position = Top:" . $SliceB['TopPos'] . ", Left:" . $SliceB['LeftPos'] . ", Bottom:" . $SliceB['BottomPos'] . ", Right:" . $SliceB['RightPos'] . " (Pixels)<br>\n";
// Extract a Unicode String
$output_str .= "URL = <a href='" . substr($IRB_Resource['ResData'], $Slicepos, $SliceB['URLlen'] * 2) . "'>" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], $Slicepos, $SliceB['URLlen'] * 2), TRUE) . "</a><br>\n";
$Slicepos += $SliceB['URLlen'] * 2;
// Unpack the length of a Unicode String
$Targetlen = hexdec(bin2hex(substr($IRB_Resource['ResData'], $Slicepos, 4)));
$Slicepos += 4;
// Extract a Unicode String
$output_str .= "Target = '" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], $Slicepos, $Targetlen * 2), TRUE) . "'<br>\n";
$Slicepos += $Targetlen * 2;
// Unpack the length of a Unicode String
$Messagelen = hexdec(bin2hex(substr($IRB_Resource['ResData'], $Slicepos, 4)));
$Slicepos += 4;
// Extract a Unicode String
$output_str .= "Message = '" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], $Slicepos, $Messagelen * 2), TRUE) . "'<br>\n";
$Slicepos += $Messagelen * 2;
// Unpack the length of a Unicode String
$AltTaglen = hexdec(bin2hex(substr($IRB_Resource['ResData'], $Slicepos, 4)));
$Slicepos += 4;
// Extract a Unicode String
$output_str .= "Alt Tag = '" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], $Slicepos, $AltTaglen * 2), TRUE) . "'<br>\n";
$Slicepos += $AltTaglen * 2;
// Unpack the HTML flag
if (ord($IRB_Resource['ResData'][$Slicepos]) === 0x1) {
$output_str .= "Cell Text is HTML<br>\n";
} else {
$output_str .= "Cell Text is NOT HTML<br>\n";
}
$Slicepos++;
// Unpack the length of a Unicode String
$CellTextlen = hexdec(bin2hex(substr($IRB_Resource['ResData'], $Slicepos, 4)));
$Slicepos += 4;
// Extract a Unicode String
$output_str .= "Cell Text = '" . HTML_UTF16_Escape(substr($IRB_Resource['ResData'], $Slicepos, $CellTextlen * 2), TRUE) . "'<br>\n";
$Slicepos += $CellTextlen * 2;
// Unpack the last 12 bytes of the slice
$SliceC = unpack("NAlignH/NAlignV/CAlpha/CRed/CGreen/CBlue", substr($IRB_Resource['ResData'], $Slicepos));
$Slicepos += 12;
$output_str .= "Alignment = Horizontal:" . $SliceC['AlignH'] . ", Vertical:" . $SliceC['AlignV'] . "<br>\n";
$output_str .= "Alpha Colour = " . $SliceC['Alpha'] . "<br>\n";
$output_str .= "Red = " . $SliceC['Red'] . "<br>\n";
$output_str .= "Green = " . $SliceC['Green'] . "<br>\n";
$output_str .= "Blue = " . $SliceC['Blue'] . "\n";
}
$output_str .= "</td></tr>\n";
break;
case 0x408:
// Grid and Guides information
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\">";
// Unpack the Grids info
$Grid_Info = unpack("NVersion/NGridCycleH/NGridCycleV/NGuideCount", $IRB_Resource['ResData']);
$output_str .= "Version = " . $Grid_Info['Version'] . "<br>\n";
$output_str .= "Grid Cycle = " . $Grid_Info['GridCycleH'] / 32 . " Pixel(s) x " . $Grid_Info['GridCycleV'] / 32 . " Pixel(s)<br>\n";
$output_str .= "Number of Guides = " . $Grid_Info['GuideCount'] . "\n";
// Cycle through the Guides
for ($i = 0; $i < $Grid_Info['GuideCount']; $i++) {
// Unpack the info for this guide
$Guide_Info = unpack("NLocation/CDirection", substr($IRB_Resource['ResData'], 16 + $i * 5, 5));
$output_str .= "<br>Guide {$i} : Location = " . $Guide_Info['Location'] / 32 . " Pixel(s) from edge";
if ($Guide_Info['Direction'] === 0) {
$output_str .= ", Vertical\n";
} else {
$output_str .= ", Horizontal\n";
}
}
break;
$output_str .= "</td></tr>\n";
case 0x406:
// JPEG Quality
$Qual_Info = unpack("nQuality/nFormat/nScans/Cconst", $IRB_Resource['ResData']);
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\">";
switch ($Qual_Info['Quality']) {
case 0xfffd:
$output_str .= "Quality 1 (Low)<br>\n";
break;
case 0xfffe:
$output_str .= "Quality 2 (Low)<br>\n";
break;
case 0xffff:
$output_str .= "Quality 3 (Low)<br>\n";
break;
case 0x0:
$output_str .= "Quality 4 (Low)<br>\n";
break;
case 0x1:
$output_str .= "Quality 5 (Medium)<br>\n";
break;
case 0x2:
$output_str .= "Quality 6 (Medium)<br>\n";
break;
case 0x3:
$output_str .= "Quality 7 (Medium)<br>\n";
break;
case 0x4:
$output_str .= "Quality 8 (High)<br>\n";
break;
case 0x5:
$output_str .= "Quality 9 (High)<br>\n";
break;
case 0x6:
$output_str .= "Quality 10 (Maximum)<br>\n";
break;
case 0x7:
$output_str .= "Quality 11 (Maximum)<br>\n";
break;
case 0x8:
$output_str .= "Quality 12 (Maximum)<br>\n";
break;
default:
$output_str .= "Unknown Quality (" . $Qual_Info['Quality'] . ")<br>\n";
break;
}
switch ($Qual_Info['Format']) {
case 0x0:
$output_str .= "Standard Format\n";
break;
case 0x1:
$output_str .= "Optimised Format\n";
break;
case 0x101:
$output_str .= "Progressive Format<br>\n";
break;
default:
$output_str .= "Unknown Format (" . $Qual_Info['Format'] . ")\n";
break;
}
if ($Qual_Info['Format'] == 0x101) {
switch ($Qual_Info['Scans']) {
case 0x1:
$output_str .= "3 Scans\n";
break;
case 0x2:
$output_str .= "4 Scans\n";
break;
case 0x3:
$output_str .= "5 Scans\n";
break;
default:
$output_str .= "Unknown number of scans (" . $Qual_Info['Scans'] . ")\n";
break;
}
}
$output_str .= "</td></tr>\n";
break;
case 0x409:
// Thumbnail Resource
// Thumbnail Resource
case 0x40c:
// Thumbnail Resource
$thumb_data = unpack("NFormat/NWidth/NHeight/NWidthBytes/NSize/NCompressedSize/nBitsPixel/nPlanes", $IRB_Resource['ResData']);
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= "Format = " . ($thumb_data['Format'] == 1 ? "JPEG RGB\n" : "Raw RGB\n");
$output_str .= "Width = " . $thumb_data['Width'] . "\n";
$output_str .= "Height = " . $thumb_data['Height'] . "\n";
$output_str .= "Padded Row Bytes = " . $thumb_data['WidthBytes'] . " bytes\n";
$output_str .= "Total Size = " . $thumb_data['Size'] . " bytes\n";
$output_str .= "Compressed Size = " . $thumb_data['CompressedSize'] . " bytes\n";
$output_str .= "Bits per Pixel = " . $thumb_data['BitsPixel'] . " bits\n";
$output_str .= "Number of planes = " . $thumb_data['Planes'] . " bytes\n";
$output_str .= "Thumbnail Data:</pre><a class=\"Photoshop_Thumbnail_Link\" href=\"get_ps_thumb.php?filename={$filename}\"><img class=\"Photoshop_Thumbnail_Link\" src=\"get_ps_thumb.php?filename={$filename}\"></a>\n";
$output_str .= "</td></tr>\n";
break;
case 0x414:
// Document Specific ID's
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>" . hexdec(bin2hex($IRB_Resource['ResData'])) . "</pre></td></tr>\n";
break;
case 0x41e:
// URL List
$URL_count = hexdec(bin2hex(substr($IRB_Resource['ResData'], 0, 4)));
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\">\n";
$output_str .= "{$URL_count} URL's in list<br>\n";
$urlstr = substr($IRB_Resource['ResData'], 4);
// TODO: Check if URL List in Photoshop IRB works
for ($i = 0; $i < $URL_count; $i++) {
$url_data = unpack("NLong/NID/NURLSize", $urlstr);
$output_str .= "URL {$i} info: long = " . $url_data['Long'] . ", ";
$output_str .= "ID = " . $url_data['ID'] . ", ";
$urlstr = substr($urlstr, 12);
$url = substr($urlstr, 0, $url_data['URLSize']);
$output_str .= "URL = <a href=\"" . xml_UTF16_clean($url, TRUE) . "\">" . HTML_UTF16_Escape($url, TRUE) . "</a><br>\n";
}
$output_str .= "</td></tr>\n";
break;
case 0x3f4:
// Grayscale and multichannel halftoning information.
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= Interpret_Halftone($IRB_Resource['ResData']);
$output_str .= "</pre></td></tr>\n";
break;
case 0x3f5:
// Color halftoning information
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= "Cyan Halftoning Info:\n" . Interpret_Halftone(substr($IRB_Resource['ResData'], 0, 18)) . "\n\n";
$output_str .= "Magenta Halftoning Info:\n" . Interpret_Halftone(substr($IRB_Resource['ResData'], 18, 18)) . "\n\n";
$output_str .= "Yellow Halftoning Info:\n" . Interpret_Halftone(substr($IRB_Resource['ResData'], 36, 18)) . "\n";
$output_str .= "Black Halftoning Info:\n" . Interpret_Halftone(substr($IRB_Resource['ResData'], 54, 18)) . "\n";
$output_str .= "</pre></td></tr>\n";
break;
case 0x3f7:
// Grayscale and multichannel transfer function.
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= Interpret_Transfer_Function(substr($IRB_Resource['ResData'], 0, 28));
$output_str .= "</pre></td></tr>\n";
break;
case 0x3f8:
// Color transfer functions
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= "Red Transfer Function: \n" . Interpret_Transfer_Function(substr($IRB_Resource['ResData'], 0, 28)) . "\n\n";
$output_str .= "Green Transfer Function: \n" . Interpret_Transfer_Function(substr($IRB_Resource['ResData'], 28, 28)) . "\n\n";
$output_str .= "Blue Transfer Function: \n" . Interpret_Transfer_Function(substr($IRB_Resource['ResData'], 56, 28)) . "\n";
$output_str .= "</pre></td></tr>\n";
break;
case 0x3f3:
// Print Flags
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
if ($IRB_Resource['ResData'][0] == "") {
$output_str .= "Labels Selected\n";
} else {
$output_str .= "Labels Not Selected\n";
}
if ($IRB_Resource['ResData'][1] == "") {
$output_str .= "Crop Marks Selected\n";
} else {
$output_str .= "Crop Marks Not Selected\n";
}
if ($IRB_Resource['ResData'][2] == "") {
$output_str .= "Color Bars Selected\n";
} else {
$output_str .= "Color Bars Not Selected\n";
}
if ($IRB_Resource['ResData'][3] == "") {
$output_str .= "Registration Marks Selected\n";
} else {
$output_str .= "Registration Marks Not Selected\n";
}
if ($IRB_Resource['ResData'][4] == "") {
$output_str .= "Negative Selected\n";
} else {
$output_str .= "Negative Not Selected\n";
}
if ($IRB_Resource['ResData'][5] == "") {
$output_str .= "Flip Selected\n";
} else {
$output_str .= "Flip Not Selected\n";
}
if ($IRB_Resource['ResData'][6] == "") {
$output_str .= "Interpolate Selected\n";
} else {
$output_str .= "Interpolate Not Selected\n";
}
if ($IRB_Resource['ResData'][7] == "") {
$output_str .= "Caption Selected";
} else {
$output_str .= "Caption Not Selected";
}
$output_str .= "</pre></td></tr>\n";
break;
case 0x2710:
// Print Flags Information
$PrintFlags = unpack("nVersion/CCentCrop/Cjunk/NBleedWidth/nBleedWidthScale", $IRB_Resource['ResData']);
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= "Version = " . $PrintFlags['Version'] . "\n";
$output_str .= "Centre Crop Marks = " . $PrintFlags['CentCrop'] . "\n";
$output_str .= "Bleed Width = " . $PrintFlags['BleedWidth'] . "\n";
$output_str .= "Bleed Width Scale = " . $PrintFlags['BleedWidthScale'];
$output_str .= "</pre></td></tr>\n";
break;
case 0x3ed:
// Resolution Info
$ResInfo = unpack("nhRes_int/nhResdec/nhResUnit/nwidthUnit/nvRes_int/nvResdec/nvResUnit/nheightUnit", $IRB_Resource['ResData']);
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\"><pre>\n";
$output_str .= "Horizontal Resolution = " . ($ResInfo['hRes_int'] + $ResInfo['hResdec'] / 65536) . " pixels per Inch\n";
$output_str .= "Vertical Resolution = " . ($ResInfo['vRes_int'] + $ResInfo['vResdec'] / 65536) . " pixels per Inch\n";
if ($ResInfo['hResUnit'] == 1) {
$output_str .= "Display units for Horizontal Resolution = Pixels per Inch\n";
} elseif ($ResInfo['hResUnit'] == 2) {
$output_str .= "Display units for Horizontal Resolution = Pixels per Centimetre\n";
} else {
$output_str .= "Display units for Horizontal Resolution = Unknown Value (" . $ResInfo['hResUnit'] . ")\n";
}
if ($ResInfo['vResUnit'] == 1) {
$output_str .= "Display units for Vertical Resolution = Pixels per Inch\n";
} elseif ($ResInfo['vResUnit'] == 2) {
$output_str .= "Display units for Vertical Resolution = Pixels per Centimetre\n";
} else {
$output_str .= "Display units for Vertical Resolution = Unknown Value (" . $ResInfo['vResUnit'] . ")\n";
}
if ($ResInfo['widthUnit'] == 1) {
$output_str .= "Display units for Image Width = Inches\n";
} elseif ($ResInfo['widthUnit'] == 2) {
$output_str .= "Display units for Image Width = Centimetres\n";
} elseif ($ResInfo['widthUnit'] == 3) {
$output_str .= "Display units for Image Width = Points\n";
} elseif ($ResInfo['widthUnit'] == 4) {
$output_str .= "Display units for Image Width = Picas\n";
} elseif ($ResInfo['widthUnit'] == 5) {
$output_str .= "Display units for Image Width = Columns\n";
} else {
$output_str .= "Display units for Image Width = Unknown Value (" . $ResInfo['widthUnit'] . ")\n";
}
if ($ResInfo['heightUnit'] == 1) {
$output_str .= "Display units for Image Height = Inches";
} elseif ($ResInfo['heightUnit'] == 2) {
$output_str .= "Display units for Image Height = Centimetres";
} elseif ($ResInfo['heightUnit'] == 3) {
$output_str .= "Display units for Image Height = Points";
} elseif ($ResInfo['heightUnit'] == 4) {
$output_str .= "Display units for Image Height = Picas";
} elseif ($ResInfo['heightUnit'] == 5) {
$output_str .= "Display units for Image Height = Columns";
} else {
$output_str .= "Display units for Image Height = Unknown Value (" . $ResInfo['heightUnit'] . ")";
}
$output_str .= "</pre></td></tr>\n";
break;
default:
// All other records
$output_str .= "<tr class=\"Photoshop_Table_Row\"><td class=\"Photoshop_Caption_Cell\">{$Resource_Name}</td><td class=\"Photoshop_Value_Cell\">RESOURCE DECODING NOT IMPLEMENTED YET<BR>" . strlen($IRB_Resource['ResData']) . " bytes</td></tr>\n";
}
}
// Add the table end to the HTML
$output_str .= "</table>\n";
// Add any secondary output to the HTML
$output_str .= $secondary_output_str;
}
// Return the HTML
return $output_str;
}
function interpret_IFD($IFD_array, $filename)
{
// Create the output string with the table tag
$output_str = "<table class=\"EXIF_Table\" border=1>\n";
// Create an extra output string to receive any supplementary html
// which cannot go inside the table
$extra_IFD_str = "";
// Check that the IFD array is valid
if ($IFD_array === FALSE || $IFD_array === NULL) {
// the IFD array is NOT valid - exit
return "";
}
// Check if this is an EXIF IFD and if there is a makernote present
if ($IFD_array['Tags Name'] === "EXIF" && !array_key_exists(37500, $IFD_array)) {
// This is an EXIF IFD but NO makernote is present - Add a message to the output
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">No Makernote Present</h3>";
}
// Cycle through each tag in the IFD
foreach ($IFD_array as $Tag_ID => $Exif_Tag) {
// Ignore the non numeric elements - they aren't tags
if (!is_numeric($Tag_ID)) {
// Skip Tags Name
} else {
if ($Exif_Tag['Decoded'] == TRUE) {
// This tag has been successfully decoded
// Table cells won't get drawn with nothing in them -
// Ensure that at least a non breaking space exists in them
if (trim($Exif_Tag['Text Value']) == "") {
$Exif_Tag['Text Value'] = " ";
}
// Check if the tag is a sub-IFD
if ($Exif_Tag['Type'] == "SubIFD") {
// This is a sub-IFD tag
// Add a sub-heading for the sub-IFD
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">" . $Exif_Tag['Tag Name'] . " contents</h3>";
// Cycle through each sub-IFD in the chain
foreach ($Exif_Tag['Data'] as $subIFD) {
// Interpret this sub-IFD and add the html to the secondary output
$extra_IFD_str .= interpret_IFD($subIFD, $filename);
}
} else {
if ($Exif_Tag['Type'] == "Maker Note") {
// This is a Makernote Tag
// Add a sub-heading for the Makernote
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Maker Note Contents</h3>";
// Interpret the Makernote and add the html to the secondary output
$extra_IFD_str .= Interpret_Makernote_to_HTML($Exif_Tag, $filename);
} else {
if ($Exif_Tag['Type'] == "IPTC") {
// This is a IPTC/NAA Record, interpret it and output to the secondary html
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Contains IPTC/NAA Embedded in EXIF</h3>";
$extra_IFD_str .= Interpret_IPTC_to_HTML($Exif_Tag['Data']);
} else {
if ($Exif_Tag['Type'] == "XMP") {
// This is a XMP Record, interpret it and output to the secondary html
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Contains XMP Embedded in EXIF</h3>";
$extra_IFD_str .= Interpret_XMP_to_HTML($Exif_Tag['Data']);
} else {
if ($Exif_Tag['Type'] == "IRB") {
// This is a Photoshop IRB Record, interpret it and output to the secondary html
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Contains Photoshop IRB Embedded in EXIF</h3>";
$extra_IFD_str .= Interpret_IRB_to_HTML($Exif_Tag['Data'], $filename);
} else {
if ($Exif_Tag['Type'] == "Numeric") {
// Numeric Tag - Output text value as is.
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\">" . $Exif_Tag['Text Value'] . "</td></tr>\n";
} else {
// Other tag - Output text as preformatted
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\"><pre>" . trim($Exif_Tag['Text Value']) . "</pre></td></tr>\n";
}
}
}
}
}
}
} else {
// Tag has NOT been decoded successfully
// Hence it is either an unknown tag, or one which
// requires processing at the time of html construction
// Table cells won't get drawn with nothing in them -
// Ensure that at least a non breaking space exists in them
if (trim($Exif_Tag['Text Value']) == "") {
$Exif_Tag['Text Value'] = " ";
}
// Check if this tag is the first IFD Thumbnail
if ($IFD_array['Tags Name'] == "TIFF" && $Tag_ID == 513) {
// This is the first IFD thumbnail - Add html to the output
// Change: as of version 1.11 - Changed to make thumbnail link portable across directories
// Build the path of the thumbnail script and its filename parameter to put in a url
$link_str = get_relative_path(dirname(__FILE__) . "/get_exif_thumb.php", getcwd());
$link_str .= "?filename=";
$link_str .= get_relative_path($filename, dirname(__FILE__));
// Add thumbnail link to html
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\"><a class=\"EXIF_First_IFD_Thumb_Link\" href=\"{$link_str}\"><img class=\"EXIF_First_IFD_Thumb\" src=\"{$link_str}\"></a></td></tr>\n";
} else {
if ($Exif_Tag['Type'] == "Maker Note") {
// This is the makernote, but has not been decoded
// Add a message to the secondary output
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Makernote Coding Unknown</h3>\n";
} else {
// This is an Unknown Tag
// Check if the user wants to hide unknown tags
if ($GLOBALS['HIDE_UNKNOWN_TAGS'] === FALSE) {
// User wants to display unknown tags
// Check if the Data is an ascii string
if ($Exif_Tag['Data Type'] == 2) {
// This is a Ascii String field - add it preformatted to the output
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\"><pre>" . trim($Exif_Tag['Text Value']) . "</pre></td></tr>\n";
} else {
// Not an ASCII string - add it as is to the output
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\">" . trim($Exif_Tag['Text Value']) . "</td></tr>\n";
}
}
}
}
}
}
}
// Close the table in the output
$output_str .= "</table>\n";
// Add the secondary output at the end of the main output
$output_str .= "{$extra_IFD_str}\n";
// Return the resulting html
return $output_str;
}
function interpret_IFD($IFD_array, $filename)
{
global $mosConfig_live_site, $zoom;
// Create the output string with the table tag
$output_str = "<table class=\"EXIF_Table\" border=\"0\" cellspacing=\"0\" cellpadding=\"3\" width=\"70%\">\n";
// Create an extra output string to receive any supplementary html
// which cannot go inside the table
$extra_IFD_str = "";
// Check that the IFD array is valid
if ($IFD_array === FALSE || $IFD_array === NULL) {
// the IFD array is NOT valid - exit
return "";
}
// Check if this is an EXIF IFD and if there is a makernote present
if ($IFD_array['Tags Name'] === "EXIF" && !array_key_exists(37500, $IFD_array)) {
// This is an EXIF IFD but NO makernote is present - Add a message to the output
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">No Makernote Present</h3>";
}
// Cycle through each tag in the IFD
foreach ($IFD_array as $Tag_ID => $Exif_Tag) {
// Ignore the non numeric elements - they aren't tags
if (!is_numeric($Tag_ID)) {
// Skip Tags Name
} else {
if ($Exif_Tag['Decoded'] == TRUE) {
// This tag has been successfully decoded
// Table cells won't get drawn with nothing in them -
// Ensure that at least a non breaking space exists in them
if (trim($Exif_Tag['Text Value']) == "") {
$Exif_Tag['Text Value'] = " ";
}
// Check if the tag is a sub-IFD
if ($Exif_Tag['Type'] == "SubIFD") {
// This is a sub-IFD tag
// Add a sub-heading for the sub-IFD
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">" . $Exif_Tag['Tag Name'] . " contents</h3>";
// Cycle through each sub-IFD in the chain
foreach ($Exif_Tag['Data'] as $subIFD) {
// Interpret this sub-IFD and add the html to the secondary output
$extra_IFD_str .= interpret_IFD($subIFD, $filename);
}
} else {
if ($Exif_Tag['Type'] == "Maker Note") {
// This is a Makernote Tag
// Add a sub-heading for the Makernote
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Maker Note Contents</h3>";
// Interpret the Makernote and add the html to the secondary output
$extra_IFD_str .= Interpret_Makernote_to_HTML($Exif_Tag, $filename);
} else {
if ($Exif_Tag['Type'] == "IPTC") {
// This is a IPTC/NAA Record, interpret it and output to the secondary html
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Contains IPTC/NAA Embedded in EXIF</h3>";
$extra_IFD_str .= Interpret_IPTC_to_HTML($Exif_Tag['Data']);
} else {
if ($Exif_Tag['Type'] == "Numeric") {
// Numeric Tag - Output text value as is.
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\">" . $Exif_Tag['Text Value'] . "</td></tr>\n";
} else {
// Other tag - Output text as preformatted
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\"><pre>" . trim($Exif_Tag['Text Value']) . "</pre></td></tr>\n";
}
}
}
}
} else {
// Tag has NOT been decoded successfully
// Hence it is either an unknown tag, or one which
// requires processing at the time of html construction
// Table cells won't get drawn with nothing in them -
// Ensure that at least a non breaking space exists in them
if (trim($Exif_Tag['Text Value']) == "") {
$Exif_Tag['Text Value'] = " ";
}
// Check if this tag is the first IFD Thumbnail
if ($IFD_array['Tags Name'] == "TIFF" && $Tag_ID == 513) {
if ($zoom->_CONFIG['hotlinkProtection']) {
$filename = $zoom->encrypt($filename);
}
// This is the first IFD thumbnail - Add html to the output
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\"><a class=\"EXIF_First_IFD_Thumb_Link\" href=\"" . $mosConfig_live_site . "/components/com_zoom/lib/iptc/get_exif_thumb.php?filename=" . $filename . "\"><img class=\"EXIF_First_IFD_Thumb\" src=\"" . $mosConfig_live_site . "/components/com_zoom/lib/iptc/get_exif_thumb.php?filename=" . $filename . "\" alt=\"\" /></a></td></tr>\n";
} else {
if ($Exif_Tag['Type'] == "Maker Note") {
// This is the makernote, but has not been decoded
// Add a message to the secondary output
$extra_IFD_str .= "<h3 class=\"EXIF_Secondary_Heading\">Makernote Coding Unknown</h3>\n";
} else {
// This is an Unknown Tag
// Check if the user wants to hide unknown tags
if ($GLOBALS['HIDE_UNKNOWN_TAGS'] === FALSE) {
// User wants to display unknown tags
// Check if the Data is an ascii string
if ($Exif_Tag['Data Type'] == 2) {
// This is a Ascii String field - add it preformatted to the output
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\"><pre>" . trim($Exif_Tag['Text Value']) . "</pre></td></tr>\n";
} else {
// Not an ASCII string - add it as is to the output
$output_str .= "<tr class=\"EXIF_Table_Row\"><td class=\"EXIF_Caption_Cell\">" . $Exif_Tag['Tag Name'] . "</td><td class=\"EXIF_Value_Cell\">" . trim($Exif_Tag['Text Value']) . "</td></tr>\n";
}
}
}
}
}
}
}
// Close the table in the output
$output_str .= "</table>\n";
// Add the secondary output at the end of the main output
$output_str .= "{$extra_IFD_str}\n";
// Return the resulting html
return $output_str;
}
