/**
* Parces IPTC data and returns those tags zenphoto is interested in
* folds multiple tags into single zp data items based on precedence.
*
* @param string $imageName the name of the image
* @return array
*/
function getImageMetadata($imageName)
{
require_once dirname(__FILE__) . '/exif/exif.php';
global $iptc;
$result = array();
getimagesize($imageName, $imageInfo);
if (is_array($imageInfo)) {
$exifraw = read_exif_data_protected($imageName);
if (isset($exifraw['SubIFD'])) {
$subIFD = $exifraw['SubIFD'];
} else {
$subIFD = array();
}
/* EXIF date */
if (isset($subIFD['DateTime'])) {
$date = $subIFD['DateTime'];
} else {
$date = '';
}
if (empty($date) && isset($subIFD['DateTimeOriginal'])) {
$date = $subIFD['DateTimeOriginal'];
}
if (empty($date) && isset($subIFD['DateTimeDigitized'])) {
$date = $subIFD['DateTimeDigitized'];
}
if (!empty($date)) {
$result['date'] = $date;
}
/* check IPTC data */
if (isset($imageInfo["APP13"])) {
$iptc = iptcparse($imageInfo["APP13"]);
if ($iptc) {
$characterset = getIPTCTag('1#090');
if (!$characterset) {
$characterset = getOption('IPTC_encoding');
} else {
if (substr($characterset, 0, 1) == chr(27)) {
// IPTC escape encoding
$characterset = substr($characterset, 1);
if ($characterset == '%G') {
$characterset = 'UTF-8';
} else {
// we don't know, need to understand the IPTC standard here. In the mean time, default it.
$characterset = getOption('IPTC_encoding');
}
} else {
if ($characterset == 'UTF8') {
$characterset = 'UTF-8';
}
}
}
/* iptc date */
$date = getIPTCTag('2#055');
if (!empty($date)) {
$result['date'] = substr($date, 0, 4) . '-' . substr($date, 4, 2) . '-' . substr($date, 6, 2);
}
/* iptc title */
$title = getIPTCTag('2#005');
/* Option Name */
if (empty($title)) {
$title = getIPTCTag('2#105');
/* Headline */
}
if (!empty($title)) {
$result['title'] = prepIPTCString($title, $characterset);
}
/* iptc description */
$caption = getIPTCTag('2#120');
if (!empty($caption)) {
$result['desc'] = prepIPTCString($caption, $characterset);
}
/* iptc location, state, country */
$location = getIPTCTag('2#092');
if (!empty($location)) {
$result['location'] = prepIPTCString($location, $characterset);
}
$city = getIPTCTag('2#090');
if (!empty($city)) {
$result['city'] = prepIPTCString($city, $characterset);
}
$state = getIPTCTag('2#095');
if (!empty($state)) {
$result['state'] = prepIPTCString($state, $characterset);
}
$country = getIPTCTag('2#101');
if (!empty($country)) {
$result['country'] = prepIPTCString($country, $characterset);
}
/* iptc credit */
$credit = getIPTCTag('2#080');
/* by-line */
if (empty($credit)) {
$credit = getIPTCTag('2#110');
/* credit */
}
if (empty($credit)) {
$credit = getIPTCTag('2#115');
/* source */
}
if (!empty($credit)) {
$result['credit'] = prepIPTCString($credit, $characterset);
}
/* iptc copyright */
$copyright = getIPTCTag('2#116');
if (!empty($copyright)) {
$result['copyright'] = prepIPTCString($copyright, $characterset);
}
/* iptc keywords (tags) */
$keywords = getIPTCTagArray('2#025');
if (is_array($keywords)) {
$taglist = array();
foreach ($keywords as $keyword) {
$taglist[] = prepIPTCString($keyword, $characterset);
}
$result['tags'] = $taglist;
}
}
}
}
return $result;
}
/**
* Parses Exif/IPTC data
*
*/
function updateMetaData()
{
require_once dirname(__FILE__) . '/exif/exif.php';
global $_zp_exifvars;
$IPTCtags = array('SKIP' => '2#000', 'ObjectType' => '2#003', 'ObjectAttr' => '2#004', 'ObjectName' => '2#005', 'EditStatus' => '2#007', 'EditorialUpdate' => '2#008', 'Urgency' => '2#010', 'SubRef' => '2#012', 'Category' => '2#015', 'SuppCategory' => '2#020', 'FixtureID' => '2#022', 'Keywords' => '2#025', 'ContentLocCode' => '2#026', 'ContentLocName' => '2#027', 'ReleaseDate' => '2#030', 'ReleaseTime' => '2#035', 'ExpireDate' => '2#037', 'ExpireTime' => '2#038', 'SpecialInstru' => '2#040', 'ActionAdvised' => '2#042', 'RefService' => '2#045', 'RefDate' => '2#047', 'RefNumber' => '2#050', 'DateCreated' => '2#055', 'TimeCreated' => '2#060', 'DigitizeDate' => '2#062', 'DigitizeTime' => '2#063', 'OriginatingProgram' => '2#065', 'ProgramVersion' => '2#070', 'ObjectCycle' => '2#075', 'ByLine' => '2#080', 'ByLineTitle' => '2#085', 'City' => '2#090', 'SubLocation' => '2#092', 'State' => '2#095', 'LocationCode' => '2#100', 'LocationName' => '2#101', 'TransmissionRef' => '2#103', 'ImageHeadline' => '2#105', 'ImageCredit' => '2#110', 'Source' => '2#115', 'Copyright' => '2#116', 'Contact' => '2#118', 'ImageCaption' => '2#120', 'ImageCaptionWriter' => '2#122', 'ImageType' => '2#130', 'Orientation' => '2#131', 'LangID' => '2#135', 'Subfile' => '8#010');
$this->set('hasMetadata', 0);
$result = array();
if (get_class($this) == '_Image') {
$localpath = $this->localpath;
} else {
$localpath = $this->getThumbImageFile();
}
$xdate = $this->getDateTime();
if (!empty($localpath)) {
// there is some kind of image to get metadata from
$exifraw = read_exif_data_protected($localpath);
if (isset($exifraw['ValidEXIFData'])) {
$this->set('hasMetadata', 1);
foreach ($_zp_exifvars as $field => $exifvar) {
if (isset($exifraw[$exifvar[0]][$exifvar[1]])) {
$exif = trim(sanitize($exifraw[$exifvar[0]][$exifvar[1]], 1));
$this->set($field, $exif);
} else {
if (isset($exifraw[$exifvar[0]]['MakerNote'][$exifvar[1]])) {
$exif = trim(sanitize($exifraw[$exifvar[0]]['MakerNote'][$exifvar[1]], 1));
$this->set($field, $exif);
}
}
}
}
/* check IPTC data */
$iptcdata = zp_imageIPTC($localpath);
if (!empty($iptcdata)) {
$iptc = iptcparse($iptcdata);
if ($iptc) {
$this->set('hasMetadata', 1);
$characterset = $this->getIPTCTag('1#090', $iptc);
if (!$characterset) {
$characterset = getOption('IPTC_encoding');
} else {
if (substr($characterset, 0, 1) == chr(27)) {
// IPTC escape encoding
$characterset = substr($characterset, 1);
if ($characterset == '%G') {
$characterset = 'UTF-8';
} else {
// we don't know, need to understand the IPTC standard here. In the mean time, default it.
$characterset = getOption('IPTC_encoding');
}
} else {
if ($characterset == 'UTF8') {
$characterset = 'UTF-8';
}
}
}
// Extract IPTC fields of interest
foreach ($_zp_exifvars as $field => $exifvar) {
if ($exifvar[0] == 'IPTC') {
$datum = $this->getIPTCTag($IPTCtags[$exifvar[1]], $iptc);
$this->set($field, $this->prepIPTCString($datum, $characterset));
}
}
/* iptc keywords (tags) */
$datum = $this->getIPTCTagArray('2#025', $iptc);
if (is_array($datum)) {
$tags = array();
$result['tags'] = array();
foreach ($datum as $item) {
$tags[] = $this->prepIPTCString(sanitize($item, 3), $characterset);
}
$this->setTags($tags);
}
}
}
}
/* "import" metadata into Zenphoto fields as makes sense */
zp_apply_filter('image_metadata', $this);
/* iptc date */
$date = $this->get('IPTCDateCreated');
if (!empty($date)) {
if (strlen($date) > 8) {
$time = substr($date, 8);
} else {
/* got date from IPTC, now must get time */
$time = $this->get('IPTCTimeCreated');
}
$date = substr($date, 0, 4) . '-' . substr($date, 4, 2) . '-' . substr($date, 6, 2);
if (!empty($time)) {
$date = $date . ' ' . substr($time, 0, 2) . ':' . substr($time, 2, 2) . ':' . substr($time, 4, 2);
}
}
/* EXIF date */
if (empty($date)) {
$date = $this->get('EXIFDateTime');
}
if (empty($date)) {
$date = $this->get('EXIFDateTimeOriginal');
}
if (empty($date)) {
$date = $this->get('EXIFDateTimeDigitized');
}
if (!empty($date)) {
$xdate = $date;
$this->setDateTime($date);
}
/* iptc title */
$title = $this->get('IPTCObjectName');
if (empty($title)) {
$title = $this->get('IPTCImageHeadline');
}
//EXIF title [sic]
if (empty($title)) {
$title = $this->get('EXIFDescription');
}
if (!empty($title)) {
$this->setTitle($title);
}
/* iptc description */
$desc = $this->get('IPTCImageCaption');
if (!empty($desc)) {
$this->setDesc($desc);
}
/* iptc location, state, country */
$loc = $this->get('IPTCSubLocation');
if (!empty($loc)) {
$this->setLocation($loc);
}
$city = $this->get('IPTCCity');
if (!empty($city)) {
$this->setCity($city);
}
$state = $this->get('IPTCState');
if (!empty($state)) {
$this->setState($state);
}
$country = $this->get('IPTCLocationName');
if (!empty($country)) {
$this->setCountry($country);
}
/* iptc credit */
$credit = $this->get('IPTCByLine');
if (empty($credit)) {
$credit = $this->get('IPTCImageCredit');
}
if (empty($credit)) {
$credit = $this->get('IPTCSource');
}
if (!empty($credit)) {
$this->setCredit($credit);
}
/* iptc copyright */
$this->setCopyright($this->get('IPTCCopyright'));
$x = $this->getTitle();
if (empty($x)) {
$this->set('title', $this->getDefaultTitle());
}
if (empty($xdate)) {
$this->set('date', strftime('%Y-%m-%d %H:%M:%S', $this->get('mtime')));
}
$alb = $this->album;
if (!is_null($alb)) {
$save = false;
if (strtotime($alb->getUpdatedDate()) < strtotime($this->getDateTime())) {
$alb->setUpdatedDate($this->getDateTime());
$save = true;
}
if (is_null($albdate = $alb->getDateTime()) || $this->album->gallery->getAlbumUseImagedate() && strtotime($albdate) < strtotime($this->getDateTime())) {
$this->album->setDateTime($this->getDateTime());
// not necessarily the right one, but will do. Can be changed in Admin
$save = true;
}
if ($save) {
$this->album->save();
}
}
}
/**
* Returns an array of EXIF data
*
* @return array
*/
function getExifData()
{
require_once dirname(__FILE__) . '/exif/exif.php';
global $_zp_exifvars;
$exif = array();
if (is_null($v = $this->get('EXIFValid')) || $v != 1 || $this->fileChanged()) {
$exifraw = read_exif_data_protected($this->localpath);
if (isset($exifraw['ValidEXIFData'])) {
foreach ($_zp_exifvars as $field => $exifvar) {
if (isset($exifraw[$exifvar[0]][$exifvar[1]])) {
$exif[$field] = sanitize($exifraw[$exifvar[0]][$exifvar[1]], 3);
$this->set($field, $exif[$field]);
}
}
$this->set('EXIFValid', 1);
} else {
$this->set('EXIFValid', 0);
}
$this->set('mtime', $this->filemtime);
$this->save();
} else {
// Put together an array of EXIF data to return
if ($this->get('EXIFValid') == 1) {
foreach ($_zp_exifvars as $field => $exifvar) {
$exif[$field] = $this->get($field);
}
} else {
return false;
}
}
return $exif;
}
/**
* Parses Exif/IPTC data
*
*/
function updateMetaData()
{
global $_zp_exifvars, $_zp_gallery;
if ($_zp_exifvars) {
require_once dirname(__FILE__) . '/exif/exif.php';
$IPTCtags = array('SKIP' => '2#000', 'ObjectType' => '2#003', 'ObjectAttr' => '2#004', 'ObjectName' => '2#005', 'EditStatus' => '2#007', 'EditorialUpdate' => '2#008', 'Urgency' => '2#010', 'SubRef' => '2#012', 'Category' => '2#015', 'SuppCategory' => '2#020', 'FixtureID' => '2#022', 'Keywords' => '2#025', 'ContentLocationCode' => '2#026', 'ContentLocationName' => '2#027', 'ReleaseDate' => '2#030', 'ReleaseTime' => '2#035', 'ExpireDate' => '2#037', 'ExpireTime' => '2#038', 'SpecialInstru' => '2#040', 'ActionAdvised' => '2#042', 'RefService' => '2#045', 'RefDate' => '2#047', 'RefNumber' => '2#050', 'DateCreated' => '2#055', 'TimeCreated' => '2#060', 'DigitizeDate' => '2#062', 'DigitizeTime' => '2#063', 'OriginatingProgram' => '2#065', 'ProgramVersion' => '2#070', 'ObjectCycle' => '2#075', 'ByLine' => '2#080', 'ByLineTitle' => '2#085', 'City' => '2#090', 'SubLocation' => '2#092', 'State' => '2#095', 'LocationCode' => '2#100', 'LocationName' => '2#101', 'TransmissionRef' => '2#103', 'ImageHeadline' => '2#105', 'ImageCredit' => '2#110', 'Source' => '2#115', 'Copyright' => '2#116', 'Contact' => '2#118', 'ImageCaption' => '2#120', 'ImageCaptionWriter' => '2#122', 'ImageType' => '2#130', 'Orientation' => '2#131', 'LangID' => '2#135', 'Subfile' => '8#010');
$this->set('hasMetadata', 0);
foreach ($_zp_exifvars as $field => $exifvar) {
$this->set($field, NULL);
}
$result = array();
if (get_class($this) == 'Image') {
$localpath = $this->localpath;
} else {
$localpath = $this->getThumbImageFile();
}
if (!empty($localpath)) {
// there is some kind of image to get metadata from
$exifraw = read_exif_data_protected($localpath);
if (isset($exifraw['ValidEXIFData'])) {
$this->set('hasMetadata', 1);
foreach ($_zp_exifvars as $field => $exifvar) {
$exif = NULL;
if (isset($exifraw[$exifvar[0]][$exifvar[1]])) {
$exif = trim(sanitize($exifraw[$exifvar[0]][$exifvar[1]], 1));
} else {
if (isset($exifraw[$exifvar[0]]['MakerNote'][$exifvar[1]])) {
$exif = trim(sanitize($exifraw[$exifvar[0]]['MakerNote'][$exifvar[1]], 1));
}
}
$this->set($field, $exif);
}
}
/* check IPTC data */
$iptcdata = zp_imageIPTC($localpath);
if (!empty($iptcdata)) {
$iptc = iptcparse($iptcdata);
if ($iptc) {
$this->set('hasMetadata', 1);
$characterset = self::getIPTCTag('1#090', $iptc);
if (!$characterset) {
$characterset = getOption('IPTC_encoding');
} else {
if (substr($characterset, 0, 1) == chr(27)) {
// IPTC escape encoding
$characterset = substr($characterset, 1);
if ($characterset == '%G') {
$characterset = 'UTF-8';
} else {
// we don't know, need to understand the IPTC standard here. In the mean time, default it.
$characterset = getOption('IPTC_encoding');
}
} else {
if ($characterset == 'UTF8') {
$characterset = 'UTF-8';
}
}
}
// Extract IPTC fields of interest
foreach ($_zp_exifvars as $field => $exifvar) {
if ($exifvar[0] == 'IPTC') {
$datum = self::getIPTCTag($IPTCtags[$exifvar[1]], $iptc);
$this->set($field, $this->prepIPTCString($datum, $characterset));
}
}
/* iptc keywords (tags) */
if ($_zp_exifvars['IPTCKeywords'][5]) {
$datum = self::getIPTCTagArray($IPTCtags['Keywords'], $iptc);
if (is_array($datum)) {
$tags = array();
$result['tags'] = array();
foreach ($datum as $item) {
$tags[] = $this->prepIPTCString(sanitize($item, 3), $characterset);
}
$this->setTags($tags);
}
}
}
}
}
/* "import" metadata into database fields as makes sense */
/* ZenPhoto20 Image Rotation */
$this->set('rotation', substr(trim(self::fetchMetadata('EXIFOrientation'), '!'), 0, 1));
/* ZenPhoto20 "date" field population */
if ($date = self::fetchMetadata('IPTCDateCreated')) {
if (strlen($date) > 8) {
$time = substr($date, 8);
} else {
/* got date from IPTC, now must get time */
$time = $this->get('IPTCTimeCreated');
}
$date = substr($date, 0, 4) . '-' . substr($date, 4, 2) . '-' . substr($date, 6, 2);
if (!empty($time)) {
$date = $date . ' ' . substr($time, 0, 2) . ':' . substr($time, 2, 2) . ':' . substr($time, 4, 2);
}
}
if (empty($date)) {
$date = self::fetchMetadata('EXIFDateTime');
}
if (empty($date)) {
$date = self::fetchMetadata('EXIFDateTimeOriginal');
}
if (empty($date)) {
$date = self::fetchMetadata('EXIFDateTimeDigitized');
}
if (empty($date)) {
$this->setDateTime(strftime('%Y-%m-%d %H:%M:%S', $this->filemtime));
} else {
$this->setDateTime($date);
}
/* ZenPhoto20 "title" field population */
$title = self::fetchMetadata('IPTCObjectName');
if (empty($title)) {
$title = self::fetchMetadata('IPTCImageHeadline');
}
if (empty($title)) {
$title = self::fetchMetadata('EXIFDescription');
//EXIF title [sic]
}
if (!empty($title)) {
if (getoption('transform_newlines')) {
$title = nl2br($title);
}
$this->setTitle($title);
}
/* ZenPhoto20 "description" field population */
$desc = self::fetchMetadata('IPTCImageCaption');
if (!empty($desc)) {
if (getoption('transform_newlines')) {
$desc = nl2br($desc);
}
$this->setDesc($desc);
}
// ZenPhoyo20 GPS data
foreach (array('EXIFGPSLatitude', 'EXIFGPSLongitude') as $source) {
$data = self::fetchMetadata($source);
if (!empty($data)) {
$ref = strtoupper($this->get($source . 'Ref'));
$this->set($source, self::toDMS($data, $ref));
if (in_array($ref, array('S', 'W'))) {
$data = '-' . $data;
}
$this->set(substr($source, 4), $data);
}
}
$alt = self::fetchMetadata('EXIFGPSAltitude');
if (!empty($alt)) {
if (self::fetchMetadata('EXIFGPSAltitudeRef') == '-') {
$alt = -$alt;
}
$this->set('GPSAltitude', $alt);
}
// simple field imports
$import = array('location' => 'IPTCSubLocation', 'city' => 'IPTCCity', 'state' => 'IPTCState', 'country' => 'IPTCLocationName', 'copyright' => 'IPTCCopyright');
foreach ($import as $key => $source) {
$data = self::fetchMetadata($source);
$this->set($key, $data);
}
/* ZenPhoto20 "credit" field population */
$credit = self::fetchMetadata('IPTCByLine');
if (empty($credit)) {
$credit = self::fetchMetadata('IPTCImageCredit');
}
if (empty($credit)) {
$credit = self::fetchMetadata('IPTCSource');
}
if (!empty($credit)) {
$this->setCredit($credit);
}
zp_apply_filter('image_metadata', $this);
$alb = $this->album;
if (is_object($alb)) {
if (!$this->get('owner')) {
$this->setOwner($alb->getOwner());
}
$save = false;
if (strtotime($alb->getUpdatedDate()) < strtotime($this->getDateTime())) {
$alb->setUpdatedDate($this->getDateTime());
$save = true;
}
if (is_null($albdate = $alb->getDateTime()) || $_zp_gallery->getAlbumUseImagedate() && strtotime($albdate) < strtotime($this->getDateTime())) {
$alb->setDateTime($this->getDateTime());
// not necessarily the right one, but will do. Can be changed in Admin
$save = true;
}
if ($save) {
$alb->save();
}
}
}
}
