Initial commit

1 files changed, 368 insertions, 0 deletions

diff --git a/includes/getid3/module.graphic.jpg.php b/includes/getid3/module.graphic.jpg.php
new file mode 100644
index 0000000..5079119
--- /dev/null
+++ b/includes/getid3/module.graphic.jpg.php
@@ -0,0 +1,368 @@
+<?php
+
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org>               //
+//  available at https://github.com/JamesHeinrich/getID3       //
+//            or https://www.getid3.org                        //
+//            or http://getid3.sourceforge.net                 //
+//  see readme.txt for more details                            //
+/////////////////////////////////////////////////////////////////
+//                                                             //
+// module.graphic.jpg.php                                      //
+// module for analyzing JPEG Image files                       //
+// dependencies: PHP compiled with --enable-exif (optional)    //
+//               module.tag.xmp.php (optional)                 //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
+	exit;
+}
+class getid3_jpg extends getid3_handler
+{
+	/**
+	 * @return bool
+	 */
+	public function Analyze() {
+		$info = &$this->getid3->info;
+
+		$info['fileformat']                  = 'jpg';
+		$info['video']['dataformat']         = 'jpg';
+		$info['video']['lossless']           = false;
+		$info['video']['bits_per_sample']    = 24;
+		$info['video']['pixel_aspect_ratio'] = (float) 1;
+
+		$this->fseek($info['avdataoffset']);
+
+		$imageinfo = array();
+		//list($width, $height, $type) = getid3_lib::GetDataImageSize($this->fread($info['filesize']), $imageinfo);
+		list($width, $height, $type) = getimagesize($info['filenamepath'], $imageinfo); // https://www.getid3.org/phpBB3/viewtopic.php?t=1474
+
+
+		if (isset($imageinfo['APP13'])) {
+			// http://php.net/iptcparse
+			// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
+			$iptc_parsed = iptcparse($imageinfo['APP13']);
+			if (is_array($iptc_parsed)) {
+				foreach ($iptc_parsed as $iptc_key_raw => $iptc_values) {
+					list($iptc_record, $iptc_tagkey) = explode('#', $iptc_key_raw);
+					$iptc_tagkey = intval(ltrim($iptc_tagkey, '0'));
+					foreach ($iptc_values as $key => $value) {
+						$IPTCrecordName = $this->IPTCrecordName($iptc_record);
+						$IPTCrecordTagName = $this->IPTCrecordTagName($iptc_record, $iptc_tagkey);
+						if (isset($info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName])) {
+							$info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName][] = $value;
+						} else {
+							$info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName] = array($value);
+						}
+					}
+				}
+			}
+		}
+
+		$returnOK = false;
+		switch ($type) {
+			case IMG_JPG:
+				$info['video']['resolution_x'] = $width;
+				$info['video']['resolution_y'] = $height;
+
+				if (isset($imageinfo['APP1'])) {
+					if (function_exists('exif_read_data')) {
+						if (substr($imageinfo['APP1'], 0, 4) == 'Exif') {
+							//$this->warning('known issue: https://bugs.php.net/bug.php?id=62523');
+							//return false;
+							set_error_handler(function($errno, $errstr, $errfile, $errline, array $errcontext) {
+								if (!(error_reporting() & $errno)) {
+									// error is not specified in the error_reporting setting, so we ignore it
+									return false;
+								}
+
+								$errcontext['info']['warning'][] = 'Error parsing EXIF data ('.$errstr.')';
+							});
+
+							$info['jpg']['exif'] = exif_read_data($info['filenamepath'], null, true, false);
+
+							restore_error_handler();
+						} else {
+							$this->warning('exif_read_data() cannot parse non-EXIF data in APP1 (expected "Exif", found "'.substr($imageinfo['APP1'], 0, 4).'")');
+						}
+					} else {
+						$this->warning('EXIF parsing only available when '.(GETID3_OS_ISWINDOWS ? 'php_exif.dll enabled' : 'compiled with --enable-exif'));
+					}
+				}
+				$returnOK = true;
+				break;
+
+			default:
+				break;
+		}
+
+
+		$cast_as_appropriate_keys = array('EXIF', 'IFD0', 'THUMBNAIL');
+		foreach ($cast_as_appropriate_keys as $exif_key) {
+			if (isset($info['jpg']['exif'][$exif_key])) {
+				foreach ($info['jpg']['exif'][$exif_key] as $key => $value) {
+					$info['jpg']['exif'][$exif_key][$key] = $this->CastAsAppropriate($value);
+				}
+			}
+		}
+
+
+		if (isset($info['jpg']['exif']['GPS'])) {
+
+			if (isset($info['jpg']['exif']['GPS']['GPSVersion'])) {
+				$version_subparts = array();
+				for ($i = 0; $i < 4; $i++) {
+					$version_subparts[$i] = ord(substr($info['jpg']['exif']['GPS']['GPSVersion'], $i, 1));
+				}
+				$info['jpg']['exif']['GPS']['computed']['version'] = 'v'.implode('.', $version_subparts);
+			}
+
+			if (isset($info['jpg']['exif']['GPS']['GPSDateStamp'])) {
+				$explodedGPSDateStamp = explode(':', $info['jpg']['exif']['GPS']['GPSDateStamp']);
+				$computed_time[5] = (isset($explodedGPSDateStamp[0]) ? $explodedGPSDateStamp[0] : '');
+				$computed_time[3] = (isset($explodedGPSDateStamp[1]) ? $explodedGPSDateStamp[1] : '');
+				$computed_time[4] = (isset($explodedGPSDateStamp[2]) ? $explodedGPSDateStamp[2] : '');
+
+				$computed_time = array(0=>0, 1=>0, 2=>0, 3=>0, 4=>0, 5=>0);
+				if (isset($info['jpg']['exif']['GPS']['GPSTimeStamp']) && is_array($info['jpg']['exif']['GPS']['GPSTimeStamp'])) {
+					foreach ($info['jpg']['exif']['GPS']['GPSTimeStamp'] as $key => $value) {
+						$computed_time[$key] = getid3_lib::DecimalizeFraction($value);
+					}
+				}
+				$info['jpg']['exif']['GPS']['computed']['timestamp'] = gmmktime($computed_time[0], $computed_time[1], $computed_time[2], $computed_time[3], $computed_time[4], $computed_time[5]);
+			}
+
+			if (isset($info['jpg']['exif']['GPS']['GPSLatitude']) && is_array($info['jpg']['exif']['GPS']['GPSLatitude'])) {
+				$direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLatitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLatitudeRef'] == 'S')) ? -1 : 1);
+				$computed_latitude = array();
+				foreach ($info['jpg']['exif']['GPS']['GPSLatitude'] as $key => $value) {
+					$computed_latitude[$key] = getid3_lib::DecimalizeFraction($value);
+				}
+				$info['jpg']['exif']['GPS']['computed']['latitude'] = $direction_multiplier * ($computed_latitude[0] + ($computed_latitude[1] / 60) + ($computed_latitude[2] / 3600));
+			}
+
+			if (isset($info['jpg']['exif']['GPS']['GPSLongitude']) && is_array($info['jpg']['exif']['GPS']['GPSLongitude'])) {
+				$direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLongitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLongitudeRef'] == 'W')) ? -1 : 1);
+				$computed_longitude = array();
+				foreach ($info['jpg']['exif']['GPS']['GPSLongitude'] as $key => $value) {
+					$computed_longitude[$key] = getid3_lib::DecimalizeFraction($value);
+				}
+				$info['jpg']['exif']['GPS']['computed']['longitude'] = $direction_multiplier * ($computed_longitude[0] + ($computed_longitude[1] / 60) + ($computed_longitude[2] / 3600));
+			}
+			if (isset($info['jpg']['exif']['GPS']['GPSAltitudeRef'])) {
+				$info['jpg']['exif']['GPS']['GPSAltitudeRef'] = ord($info['jpg']['exif']['GPS']['GPSAltitudeRef']); // 0 = above sea level; 1 = below sea level
+			}
+			if (isset($info['jpg']['exif']['GPS']['GPSAltitude'])) {
+				$direction_multiplier = (!empty($info['jpg']['exif']['GPS']['GPSAltitudeRef']) ? -1 : 1);           // 0 = above sea level; 1 = below sea level
+				$info['jpg']['exif']['GPS']['computed']['altitude'] = $direction_multiplier * getid3_lib::DecimalizeFraction($info['jpg']['exif']['GPS']['GPSAltitude']);
+			}
+
+		}
+
+
+		getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.xmp.php', __FILE__, true);
+		if (isset($info['filenamepath'])) {
+			$image_xmp = new Image_XMP($info['filenamepath']);
+			$xmp_raw = $image_xmp->getAllTags();
+			foreach ($xmp_raw as $key => $value) {
+				if (strpos($key, ':')) {
+					list($subsection, $tagname) = explode(':', $key);
+					$info['xmp'][$subsection][$tagname] = $this->CastAsAppropriate($value);
+				} else {
+					$this->warning('XMP: expecting "<subsection>:<tagname>", found "'.$key.'"');
+				}
+			}
+		}
+
+		if (!$returnOK) {
+			unset($info['fileformat']);
+			return false;
+		}
+		return true;
+	}
+
+	/**
+	 * @param mixed $value
+	 *
+	 * @return mixed
+	 */
+	public function CastAsAppropriate($value) {
+		if (is_array($value)) {
+			return $value;
+		} elseif (preg_match('#^[0-9]+/[0-9]+$#', $value)) {
+			return getid3_lib::DecimalizeFraction($value);
+		} elseif (preg_match('#^[0-9]+$#', $value)) {
+			return getid3_lib::CastAsInt($value);
+		} elseif (preg_match('#^[0-9\.]+$#', $value)) {
+			return (float) $value;
+		}
+		return $value;
+	}
+
+	/**
+	 * @param int $iptc_record
+	 *
+	 * @return string
+	 */
+	public function IPTCrecordName($iptc_record) {
+		// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
+		static $IPTCrecordName = array();
+		if (empty($IPTCrecordName)) {
+			$IPTCrecordName = array(
+				1 => 'IPTCEnvelope',
+				2 => 'IPTCApplication',
+				3 => 'IPTCNewsPhoto',
+				7 => 'IPTCPreObjectData',
+				8 => 'IPTCObjectData',
+				9 => 'IPTCPostObjectData',
+			);
+		}
+		return (isset($IPTCrecordName[$iptc_record]) ? $IPTCrecordName[$iptc_record] : '');
+	}
+
+	/**
+	 * @param int $iptc_record
+	 * @param int $iptc_tagkey
+	 *
+	 * @return string
+	 */
+	public function IPTCrecordTagName($iptc_record, $iptc_tagkey) {
+		// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
+		static $IPTCrecordTagName = array();
+		if (empty($IPTCrecordTagName)) {
+			$IPTCrecordTagName = array(
+				1 => array( // IPTC EnvelopeRecord Tags
+					0   => 'EnvelopeRecordVersion',
+					5   => 'Destination',
+					20  => 'FileFormat',
+					22  => 'FileVersion',
+					30  => 'ServiceIdentifier',
+					40  => 'EnvelopeNumber',
+					50  => 'ProductID',
+					60  => 'EnvelopePriority',
+					70  => 'DateSent',
+					80  => 'TimeSent',
+					90  => 'CodedCharacterSet',
+					100 => 'UniqueObjectName',
+					120 => 'ARMIdentifier',
+					122 => 'ARMVersion',
+				),
+				2 => array( // IPTC ApplicationRecord Tags
+					0   => 'ApplicationRecordVersion',
+					3   => 'ObjectTypeReference',
+					4   => 'ObjectAttributeReference',
+					5   => 'ObjectName',
+					7   => 'EditStatus',
+					8   => 'EditorialUpdate',
+					10  => 'Urgency',
+					12  => 'SubjectReference',
+					15  => 'Category',
+					20  => 'SupplementalCategories',
+					22  => 'FixtureIdentifier',
+					25  => 'Keywords',
+					26  => 'ContentLocationCode',
+					27  => 'ContentLocationName',
+					30  => 'ReleaseDate',
+					35  => 'ReleaseTime',
+					37  => 'ExpirationDate',
+					38  => 'ExpirationTime',
+					40  => 'SpecialInstructions',
+					42  => 'ActionAdvised',
+					45  => 'ReferenceService',
+					47  => 'ReferenceDate',
+					50  => 'ReferenceNumber',
+					55  => 'DateCreated',
+					60  => 'TimeCreated',
+					62  => 'DigitalCreationDate',
+					63  => 'DigitalCreationTime',
+					65  => 'OriginatingProgram',
+					70  => 'ProgramVersion',
+					75  => 'ObjectCycle',
+					80  => 'By-line',
+					85  => 'By-lineTitle',
+					90  => 'City',
+					92  => 'Sub-location',
+					95  => 'Province-State',
+					100 => 'Country-PrimaryLocationCode',
+					101 => 'Country-PrimaryLocationName',
+					103 => 'OriginalTransmissionReference',
+					105 => 'Headline',
+					110 => 'Credit',
+					115 => 'Source',
+					116 => 'CopyrightNotice',
+					118 => 'Contact',
+					120 => 'Caption-Abstract',
+					121 => 'LocalCaption',
+					122 => 'Writer-Editor',
+					125 => 'RasterizedCaption',
+					130 => 'ImageType',
+					131 => 'ImageOrientation',
+					135 => 'LanguageIdentifier',
+					150 => 'AudioType',
+					151 => 'AudioSamplingRate',
+					152 => 'AudioSamplingResolution',
+					153 => 'AudioDuration',
+					154 => 'AudioOutcue',
+					184 => 'JobID',
+					185 => 'MasterDocumentID',
+					186 => 'ShortDocumentID',
+					187 => 'UniqueDocumentID',
+					188 => 'OwnerID',
+					200 => 'ObjectPreviewFileFormat',
+					201 => 'ObjectPreviewFileVersion',
+					202 => 'ObjectPreviewData',
+					221 => 'Prefs',
+					225 => 'ClassifyState',
+					228 => 'SimilarityIndex',
+					230 => 'DocumentNotes',
+					231 => 'DocumentHistory',
+					232 => 'ExifCameraInfo',
+				),
+				3 => array( // IPTC NewsPhoto Tags
+					0   => 'NewsPhotoVersion',
+					10  => 'IPTCPictureNumber',
+					20  => 'IPTCImageWidth',
+					30  => 'IPTCImageHeight',
+					40  => 'IPTCPixelWidth',
+					50  => 'IPTCPixelHeight',
+					55  => 'SupplementalType',
+					60  => 'ColorRepresentation',
+					64  => 'InterchangeColorSpace',
+					65  => 'ColorSequence',
+					66  => 'ICC_Profile',
+					70  => 'ColorCalibrationMatrix',
+					80  => 'LookupTable',
+					84  => 'NumIndexEntries',
+					85  => 'ColorPalette',
+					86  => 'IPTCBitsPerSample',
+					90  => 'SampleStructure',
+					100 => 'ScanningDirection',
+					102 => 'IPTCImageRotation',
+					110 => 'DataCompressionMethod',
+					120 => 'QuantizationMethod',
+					125 => 'EndPoints',
+					130 => 'ExcursionTolerance',
+					135 => 'BitsPerComponent',
+					140 => 'MaximumDensityRange',
+					145 => 'GammaCompensatedValue',
+				),
+				7 => array( // IPTC PreObjectData Tags
+					10  => 'SizeMode',
+					20  => 'MaxSubfileSize',
+					90  => 'ObjectSizeAnnounced',
+					95  => 'MaximumObjectSize',
+				),
+				8 => array( // IPTC ObjectData Tags
+					10  => 'SubFile',
+				),
+				9 => array( // IPTC PostObjectData Tags
+					10  => 'ConfirmedObjectSize',
+				),
+			);
+
+		}
+		return (isset($IPTCrecordTagName[$iptc_record][$iptc_tagkey]) ? $IPTCrecordTagName[$iptc_record][$iptc_tagkey] : $iptc_tagkey);
+	}
+
+}