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Code Issues Releases Activity

fixed style errors

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gras 2024-02-11 17:08:21 +01:00
parent b2be0a9763
commit a6035f5b65
1 changed files with 14 additions and 12 deletions
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26
src/backend/model/fileaccess/MetadataLoader.ts
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@ -201,18 +201,19 @@ export class MetadataLoader {
return Date.parse(timestamp.replace(':', '-').replace(':', '-') + (offset ? offset : '+00:00')); return Date.parse(timestamp.replace(':', '-').replace(':', '-') + (offset ? offset : '+00:00'));
} }
//function to calculate offset from exif.exif.gpsTimeStamp or exif.gps.GPSDateStamp + exif.gps.GPSTimestamp
const getTimeOffsetByGPSStamp = (timestamp: string, gpsTimeStamp: string, gps: any) => { const getTimeOffsetByGPSStamp = (timestamp: string, gpsTimeStamp: string, gps: any) => {
let UTCTimestamp = gpsTimeStamp; let UTCTimestamp = gpsTimeStamp; //use the exif.exif.gpsTimestamp if available
if (!UTCTimestamp && if (!UTCTimestamp &&
gps && gps &&
gps.GPSDateStamp && gps.GPSDateStamp &&
gps.GPSTimeStamp) { gps.GPSTimeStamp) { //else use exif.gps.GPS*Stamp if available
//GPS timestamp is always UTC (+00:00) //GPS timestamp is always UTC (+00:00)
UTCTimestamp = gps.GPSDateStamp.replaceAll(':', '-') + gps.GPSTimeStamp.join(':') + '+00:00'; UTCTimestamp = gps.GPSDateStamp.replaceAll(':', '-') + gps.GPSTimeStamp.join(':') + '+00:00';
} }
if (UTCTimestamp) { if (UTCTimestamp) {
//offset in minutes is the difference between gps timestamp and given timestamp //offset in minutes is the difference between gps timestamp and given timestamp
let offsetMinutes = (Date.parse(UTCTimestamp) - Date.parse(timestamp.replace(':', '-').replace(':', '-'))) / 1000 / 60; const offsetMinutes = (Date.parse(UTCTimestamp) - Date.parse(timestamp.replace(':', '-').replace(':', '-'))) / 1000 / 60;
if (-720 <= offsetMinutes && offsetMinutes <= 840) { if (-720 <= offsetMinutes && offsetMinutes <= 840) {
//valid offset is within -12 and +14 hrs (https://en.wikipedia.org/wiki/List_of_UTC_offsets) //valid offset is within -12 and +14 hrs (https://en.wikipedia.org/wiki/List_of_UTC_offsets)
return (offsetMinutes < 0 ? "-" : "+") + //leading +/- return (offsetMinutes < 0 ? "-" : "+") + //leading +/-
@ -226,6 +227,13 @@ export class MetadataLoader {
} }
} }
//Function to convert html code for special characters into their corresponding character (used in exif.photoshop-section)
const unescape = (tag: string) => {
return tag.replace(/&#([0-9]{1,3});/gi, function (match, numStr) {
return String.fromCharCode(parseInt(numStr, 10));
});
}
try { try {
const data = Buffer.allocUnsafe(Config.Media.photoMetadataSize); const data = Buffer.allocUnsafe(Config.Media.photoMetadataSize);
fileHandle = await fs.promises.open(fullPath, 'r'); fileHandle = await fs.promises.open(fullPath, 'r');
@ -347,7 +355,7 @@ export class MetadataLoader {
metadata.creationDate = timestampToMS(exif.exif.DateTimeOriginal, exif.exif.OffsetTimeOriginal); metadata.creationDate = timestampToMS(exif.exif.DateTimeOriginal, exif.exif.OffsetTimeOriginal);
metadata.creationDateOffset = exif.exif.OffsetTimeOriginal; metadata.creationDateOffset = exif.exif.OffsetTimeOriginal;
} else { } else {
let alt_offset = exif.exif.OffsetTimeDigitized || exif.exif.OffsetTime || getTimeOffsetByGPSStamp(exif.exif.DateTimeOriginal, exif.exif.GPSTimeStamp, exif.gps); const alt_offset = exif.exif.OffsetTimeDigitized || exif.exif.OffsetTime || getTimeOffsetByGPSStamp(exif.exif.DateTimeOriginal, exif.exif.GPSTimeStamp, exif.gps);
metadata.creationDate = timestampToMS(exif.exif.DateTimeOriginal, alt_offset); metadata.creationDate = timestampToMS(exif.exif.DateTimeOriginal, alt_offset);
metadata.creationDateOffset = alt_offset; metadata.creationDateOffset = alt_offset;
} }
@ -357,7 +365,7 @@ export class MetadataLoader {
metadata.creationDate = timestampToMS(exif.exif.CreateDate, exif.exif.OffsetTimeDigitized); metadata.creationDate = timestampToMS(exif.exif.CreateDate, exif.exif.OffsetTimeDigitized);
metadata.creationDateOffset = exif.exif.OffsetTimeDigitized; metadata.creationDateOffset = exif.exif.OffsetTimeDigitized;
} else { } else {
let alt_offset = exif.exif.OffsetTimeOriginal || exif.exif.OffsetTime || getTimeOffsetByGPSStamp(exif.exif.DateTimeOriginal, exif.exif.GPSTimeStamp, exif.gps); const alt_offset = exif.exif.OffsetTimeOriginal || exif.exif.OffsetTime || getTimeOffsetByGPSStamp(exif.exif.DateTimeOriginal, exif.exif.GPSTimeStamp, exif.gps);
metadata.creationDate = timestampToMS(exif.exif.DateTimeOriginal, alt_offset); metadata.creationDate = timestampToMS(exif.exif.DateTimeOriginal, alt_offset);
metadata.creationDateOffset = alt_offset; metadata.creationDateOffset = alt_offset;
} }
@ -367,7 +375,7 @@ export class MetadataLoader {
metadata.creationDate = timestampToMS(exif.ifd0.ModifyDate, exif.exif?.OffsetTime); metadata.creationDate = timestampToMS(exif.ifd0.ModifyDate, exif.exif?.OffsetTime);
metadata.creationDateOffset = exif.exif?.OffsetTime metadata.creationDateOffset = exif.exif?.OffsetTime
} else { } else {
let alt_offset = exif.exif.DateTimeOriginal || exif.exif.OffsetTimeDigitized || getTimeOffsetByGPSStamp(exif.ifd0.ModifyDate, exif.exif.GPSTimeStamp, exif.gps); const alt_offset = exif.exif.DateTimeOriginal || exif.exif.OffsetTimeDigitized || getTimeOffsetByGPSStamp(exif.ifd0.ModifyDate, exif.exif.GPSTimeStamp, exif.gps);
metadata.creationDate = timestampToMS(exif.ifd0.ModifyDate, alt_offset); metadata.creationDate = timestampToMS(exif.ifd0.ModifyDate, alt_offset);
metadata.creationDateOffset = alt_offset; metadata.creationDateOffset = alt_offset;
} }
@ -432,12 +440,6 @@ export class MetadataLoader {
} }
//photoshop section (sometimes has City, Country and State) //photoshop section (sometimes has City, Country and State)
if (exif.photoshop) { if (exif.photoshop) {
function unescape(tag: string) {
return tag.replace(/&#([0-9]{1,3});/gi, function (match, numStr) {
return String.fromCharCode(parseInt(numStr, 10));
});
}
if (!metadata.positionData?.country && exif.photoshop.Country) { if (!metadata.positionData?.country && exif.photoshop.Country) {
metadata.positionData = metadata.positionData || {}; metadata.positionData = metadata.positionData || {};
metadata.positionData.country = unescape(exif.photoshop.Country); metadata.positionData.country = unescape(exif.photoshop.Country);