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exifreader - npm Package Compare versions

Comparing version 3.1.0 to 3.2.0

src/thumbnail.js

2

dist/exif-reader.js

@@ -1,2 +0,2 @@

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n}(e));var r=function(e){return Qe(e.value["rdf:value"])||e.value["rdf:value"].value}(e);return{value:r,attributes:t,description:He(r,n)}}function $e(e){var n={};for(var t in e.attributes)"rdf:parseType"===t||"rdf:resource"===t||ze(t)||(n[We(t)]=e.attributes[t]);return n}function Ze(e){return e["rdf:Bag"]||e["rdf:Seq"]||e["rdf:Alt"]}function Qe(e){return e.attributes&&e.attributes["rdf:resource"]}var en={desc:{name:"ICC Description"},cprt:{name:"ICC Copyright"},dmdd:{name:"ICC Device Model Description"},vued:{name:"ICC Viewing Conditions Description"},dmnd:{name:"ICC Device Manufacturer for Display"},tech:{name:"Technology"}},nn={4:{name:"Preferred CMM type",value:function(e,n){return r(e,n,4)},description:function(e){return null!==e?tn(e):""}},8:{name:"Profile Version",value:function(e,n){return e.getUint8(n).toString(10)+"."+(e.getUint8(n+1)>>4).toString(10)+"."+(e.getUint8(n+1)%16).toString(10)}},12:{name:"Profile/Device class",value:function(e,n){return r(e,n,4)},description:function(e){switch(e.toLowerCase()){case"scnr":return"Input Device profile";case"mntr":return"Display Device profile";case"prtr":return"Output Device profile";case"link":return"DeviceLink profile";case"abst":return"Abstract profile";case"spac":return"ColorSpace profile";case"nmcl":return"NamedColor profile";case"cenc":return"ColorEncodingSpace profile";case"mid ":return"MultiplexIdentification profile";case"mlnk":return"MultiplexLink profile";case"mvis":return"MultiplexVisualization profile";default:return e}}},16:{name:"Color Space",value:function(e,n){return r(e,n,4)}},20:{name:"Connection Space",value:function(e,n){return r(e,n,4)}},24:{name:"ICC Profile Date",value:function(e,n){return function(e,n){var t=e.getUint16(n),r=e.getUint16(n+2)-1,i=e.getUint16(n+4),o=e.getUint16(n+6),a=e.getUint16(n+8),u=e.getUint16(n+10);return new Date(Date.UTC(t,r,i,o,a,u))}(e,n).toISOString()}},36:{name:"ICC Signature",value:function(e,n){return t=e.buffer.slice(n,n+4),String.fromCharCode.apply(null,new Uint8Array(t));var t}},40:{name:"Primary Platform",value:function(e,n){return r(e,n,4)},description:function(e){return tn(e)}},48:{name:"Device Manufacturer",value:function(e,n){return r(e,n,4)},description:function(e){return tn(e)}},52:{name:"Device Model Number",value:function(e,n){return r(e,n,4)}},64:{name:"Rendering Intent",value:function(e,n){return e.getUint32(n)},description:function(e){switch(e){case 0:return"Perceptual";case 1:return"Relative Colorimetric";case 2:return"Saturation";case 3:return"Absolute Colorimetric";default:return e}}},80:{name:"Profile Creator",value:function(e,n){return r(e,n,4)}}};function tn(e){switch(e.toLowerCase()){case"appl":return"Apple";case"adbe":return"Adobe";case"msft":return"Microsoft";case"sunw":return"Sun Microsystems";case"sgi":return"Silicon Graphics";case"tgnt":return"Taligent";default:return e}}var rn={read:function(e,n){try{for(var t=n.reduce((function(e,n){return e+n.length}),0),o=new Uint8Array(t),a=0,u=e.buffer,c=function(e){var t=n.find((function(n){return n.chunkNumber===e}));if(!t)throw new Error("ICC chunk ".concat(e," not found"));var r=u.slice(t.offset,t.offset+t.length),i=new Uint8Array(r);o.set(i,a),a+=i.length},f=1;f<=n.length;f++)c(f);return function(e){var n=e.buffer,t=e.getUint32();if(e.byteLength!==t)throw new Error("ICC profile length not matching");if(e.length<84)throw new Error("ICC profile too short");for(var o={},a=0,u=Object.keys(nn);a<u.length;a++){var c=u[a],f=nn[c],s=f.value(e,parseInt(c,10)),l=s;f.description&&(l=f.description(s)),o[f.name]={value:s,description:l}}if("acsp"!==an(n.slice(36,40)))throw new Error("ICC profile: missing signature");if(function(e){return e.length<132}(n))return o;for(var d=e.getUint32(128),p=132,m=0;m<d;m++){if(on(n,p))return o;var g=r(e,p,4),h=e.getUint32(p+4),v=e.getUint32(p+8);if(h>n.length)return o;var y=r(e,h,4);if("desc"===y){var S=e.getUint32(h+8);if(S>v)return o;var b=an(n.slice(h+12,h+S+11));un(o,g,b)}else if("mluc"===y){for(var C=e.getUint32(h+8),I=e.getUint32(h+12),A=h+16,w=[],P=0;P<C;P++){var U=r(e,A+0,2),D=r(e,A+2,2),T=e.getUint32(A+4),O=e.getUint32(A+8),M=i(e,h+O,T);w.push({languageCode:U,countryCode:D,text:M}),A+=I}if(1===C)un(o,g,w[0].text);else{for(var x={},F=0;F<w.length;F++)x["".concat(w[F].languageCode,"-").concat(w[F].countryCode)]=w[F].text;un(o,g,x)}}else if("text"===y){var L=an(n.slice(h+8,h+v-7));un(o,g,L)}else if("sig "===y){var N=an(n.slice(h+8,h+12));un(o,g,N)}p+=12}return o}(new DataView(o.buffer))}catch(e){return{}}}};function on(e,n){return e.length<n+12}function an(e){return String.fromCharCode.apply(null,new Uint8Array(e))}function un(e,n,t){en[n]?e[en[n].name]={value:t,description:t}:e[n]={value:t,description:t}}var cn={read:function(e,n){return{"Image Width":fn(e,n),"Image Height":sn(e,n),"Bit Depth":ln(e,n),"Color Type":dn(e,n),Compression:pn(e,n),Filter:mn(e,n),Interlace:gn(e,n)}}};function fn(e,n){if(!(n+0+4>e.byteLength)){var t=O.getLongAt(e,n);return{value:t,description:"".concat(t,"px")}}}function sn(e,n){if(!(n+4+4>e.byteLength)){var t=O.getLongAt(e,n+4);return{value:t,description:"".concat(t,"px")}}}function ln(e,n){if(!(n+8+1>e.byteLength)){var t=O.getByteAt(e,n+8);return{value:t,description:"".concat(t)}}}function dn(e,n){if(!(n+9+1>e.byteLength)){var t=O.getByteAt(e,n+9);return{value:t,description:{0:"Grayscale",2:"RGB",3:"Palette",4:"Grayscale with Alpha",6:"RGB with Alpha"}[t]||"Unknown"}}}function pn(e,n){if(!(n+10+1>e.byteLength)){var t=O.getByteAt(e,n+10);return{value:t,description:0===t?"Deflate/Inflate":"Unknown"}}}function mn(e,n){if(!(n+11+1>e.byteLength)){var t=O.getByteAt(e,n+11);return{value:t,description:0===t?"Adaptive":"Unknown"}}}function gn(e,n){if(!(n+12+1>e.byteLength)){var t=O.getByteAt(e,n+12);return{value:t,description:{0:"Noninterlaced",1:"Adam7 Interlace"}[t]||"Unknown"}}}function hn(e){return(hn="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var vn={get:function(e,n,t){if(c=n,c&&(void 0===c.Compression||6===c.Compression.value)&&c.JPEGInterchangeFormat&&c.JPEGInterchangeFormat.value&&c.JPEGInterchangeFormatLength&&c.JPEGInterchangeFormatLength.value){n.type="image/jpeg";var r=t+n.JPEGInterchangeFormat.value;n.image=e.buffer.slice(r,r+n.JPEGInterchangeFormatLength.value),i=n,o="base64",a=function(){return e=this.image,"undefined"!=typeof btoa?btoa(Array.prototype.reduce.call(new Uint8Array(e),(function(e,n){return e+String.fromCharCode(n)}),"")):"undefined"!=typeof Buffer?void 0!==hn(Buffer.from)?Buffer.from(e).toString("base64"):new Buffer(e).toString("base64"):void 0;var e},u=!1,Object.defineProperty(i,o,{get:function(){return u||(u=!0,Object.defineProperty(i,o,{configurable:!0,enumerable:!0,value:a.apply(i),writable:!0})),i[o]},configurable:!0,enumerable:!0})}var i,o,a,u;var c;return n}};function yn(e){this.name="MetadataMissingError",this.message=e||"No Exif data",this.stack=(new Error).stack}yn.prototype=new Error;var Sn={MetadataMissingError:yn};function bn(e,n){if(null==e)return{};var t,r,i=function(e,n){if(null==e)return{};var t,r,i={},o=Object.keys(e);for(r=0;r<o.length;r++)t=o[r],n.indexOf(t)>=0||(i[t]=e[t]);return i}(e,n);if(Object.getOwnPropertySymbols){var o=Object.getOwnPropertySymbols(e);for(r=0;r<o.length;r++)t=o[r],n.indexOf(t)>=0||Object.prototype.propertyIsEnumerable.call(e,t)&&(i[t]=e[t])}return i}n.default={load:In,loadView:wn,errors:Sn};var Cn=Sn;function In(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{expanded:!1};return wn(An(e),n)}function An(e){try{return new DataView(e)}catch(n){return new f(e)}}function wn(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{expanded:!1},t=!1,r={},i=m.parseAppMarkers(e),o=i.fileDataOffset,u=i.tiffHeaderOffset,c=i.iptcDataOffset,f=i.xmpChunks,s=i.iccChunks,l=i.pngHeaderOffset;if(Pn(o)){t=!0;var d=ne.read(e,o);n.expanded?r.file=d:r=a({},r,d)}if(Un(u)){t=!0;var p=K.read(e,u),g=p.Thumbnail,h=bn(p,["Thumbnail"]);n.expanded?r.exif=h:r=a({},r,h),g&&(r.Thumbnail=g)}if(Dn(c)){t=!0;var v=me.read(e,c);n.expanded?r.iptc=v:r=a({},r,v)}if(Tn(f)){t=!0;var y=Oe.read(e,f);n.expanded?r.xmp=y:r=a({},r,y)}if(On(s)){t=!0;var S=rn.read(e,s);n.expanded?r.icc=S:r=a({},r,S)}if(Mn(l)){t=!0;var b=cn.read(e,l);n.expanded?r.pngFile=b:r=a({},r,b)}var C=vn.get(e,r.Thumbnail,u);if(C&&(r.Thumbnail=C,t=!0),!t)throw new Sn.MetadataMissingError;return r}function Pn(e){return void 0!==e}function Un(e){return void 0!==e}function Dn(e){return void 0!==e}function Tn(e){return Array.isArray(e)&&e.length>0}function On(e){return Array.isArray(e)&&e.length>0}function Mn(e){return void 0!==e}}])}));
//# sourceMappingURL=exif-reader.js.map

18

package.json
{
"name": "exifreader",
"version": "3.1.0",
"version": "3.2.0",
"description": "Library that parses Exif metadata in images.",

@@ -22,10 +22,8 @@ "author": "Mattias Wallander <mattias@wallander.eu>",

"devDependencies": {
"@babel/core": "^7.9.0",
"@babel/preset-env": "^7.9.0",
"@babel/register": "^7.9.0",
"@types/node": "^13.9.0",
"babel-core": "^6.26.3",
"babel-loader": "^7.1.5",
"babel-plugin-rewire": "^1.1.0",
"babel-plugin-transform-for-of-as-array": "^1.1.1",
"babel-preset-env": "^1.7.0",
"babel-template": "^6.26.0",
"babel-types": "^6.26.0",
"babel-loader": "^8.1.0",
"babel-plugin-rewire": "^1.2.0",
"chai": "^4.1.2",

@@ -35,3 +33,3 @@ "cross-env": "^5.2.0",

"husky": "^0.14.3",
"mocha": "^5.2.0",
"mocha": "^7.1.1",
"npm-run-all": "^4.1.5",

@@ -47,3 +45,3 @@ "nyc": "^14.1.1",

"precommit": "npm-run-all lint test",
"test": "cross-env BABEL_ENV=test mocha --require babel-core/register"
"test": "cross-env BABEL_ENV=test mocha --require @babel/register"
},

@@ -50,0 +48,0 @@ "nyc": {

32

README.md

@@ -5,5 +5,5 @@ ExifReader

ExifReader is a JavaScript library that parses image files and extracts the
metadata. It can be used either in a browser or from Node. Supports JPEG, TIFF,
PNG, and HEIC files with tags encoded using Exif, IPTC, and XMP (depending on
file type).
metadata. It can also extract an embedded thumbnail. It can be used either in a
browser or from Node. Supports JPEG, TIFF, PNG, and HEIC files with tags encoded
using Exif, IPTC, and XMP (depending on file type).

@@ -117,2 +117,28 @@ ExifReader supports module formats AMD, CommonJS and globals and can therefore

### Using the thumbnail
The thumbnail and its details will be accessible through `tags['Thumbnail']`.
There is information about e.g. width and height, and the thumbnail image data
is stored in `tags['Thumbnail'].image`.
How you use it is going to depend on your environment. For a web browser you can
either use the raw byte data in `tags['Thumbnail'].image` and use it the way you
want, or you can use the helper property `tags['Thumbnail'].base64` that is a
base64 representation of the image. It can be used for a data URI like this:
```javascript
const tags = ExifReader.load(fileBuffer);
imageElement.src = 'data:image/jpg;base64,' + tags['Thumbnail'].base64;
```
If you're using node, you can store it as a new file like this:
```javascript
const fs = require('fs');
const tags = ExifReader.load(fileBuffer);
fs.writeFileSync('/path/to/new/thumbnail.jpg', Buffer.from(tags['Thumbnail'].image));
```
See [examples/](examples/) directory for more details.
Notes

@@ -119,0 +145,0 @@ -----

13

src/exif-reader.js

@@ -19,2 +19,3 @@ /**

import PngFileTags from './png-file-tags';
import Thumbnail from './thumbnail';
import exifErrors from './errors';

@@ -59,3 +60,3 @@

foundMetaData = true;
const readTags = Tags.read(dataView, tiffHeaderOffset);
const {Thumbnail: thumbnailTags, ...readTags} = Tags.read(dataView, tiffHeaderOffset);
if (options.expanded) {

@@ -66,2 +67,5 @@ tags.exif = readTags;

}
if (thumbnailTags) {
tags.Thumbnail = thumbnailTags;
}
}

@@ -104,2 +108,9 @@ if (hasIptcData(iptcDataOffset)) {

}
const thumbnail = Thumbnail.get(dataView, tags.Thumbnail, tiffHeaderOffset);
if (thumbnail) {
tags.Thumbnail = thumbnail;
foundMetaData = true;
}
if (!foundMetaData) {

@@ -106,0 +117,0 @@ throw new exifErrors.MetadataMissingError();

21

src/tags.js

@@ -77,6 +77,10 @@ /* This Source Code Form is subject to the terms of the Mozilla Public

const tags = {};
const numberOfFields = Types.getShortAt(dataView, offset, byteOrder);
const numberOfFields = getNumberOfFields(dataView, offset, byteOrder);
offset += FIELD_COUNT_SIZE;
for (let fieldIndex = 0; fieldIndex < numberOfFields; fieldIndex++) {
if (offset + FIELD_SIZE > dataView.byteLength) {
break;
}
const tag = readTag(dataView, ifdType, tiffHeaderOffset, offset, byteOrder);

@@ -90,8 +94,23 @@ if (tag !== undefined) {

}
offset += FIELD_SIZE;
}
if (offset < dataView.byteLength - Types.getTypeSize('LONG')) {
const nextIfdOffset = Types.getLongAt(dataView, offset, byteOrder);
if (nextIfdOffset !== 0) {
tags['Thumbnail'] = readIfd(dataView, ifdType, tiffHeaderOffset, tiffHeaderOffset + nextIfdOffset, byteOrder);
}
}
return tags;
}
function getNumberOfFields(dataView, offset, byteOrder) {
if (offset + Types.getTypeSize('SHORT') <= dataView.byteLength) {
return Types.getShortAt(dataView, offset, byteOrder);
}
return 0;
}
function readTag(dataView, ifdType, tiffHeaderOffset, offset, byteOrder) {

@@ -98,0 +117,0 @@ const TAG_TYPE_OFFSET = Types.getTypeSize('SHORT');

20

src/utils.js

@@ -34,1 +34,21 @@ /* This Source Code Form is subject to the terms of the Mozilla Public

}
export function deferInit(object, key, initializer) {
let initialized = false;
Object.defineProperty(object, key, {
get() {
if (!initialized) {
initialized = true;
Object.defineProperty(object, key, {
configurable: true,
enumerable: true,
value: initializer.apply(object),
writable: true
});
}
return object[key];
},
configurable: true,
enumerable: true
});
}
src/tag-names-exif.js
dist/exif-reader.js.map

Sorry, the diff of this file is not supported yet

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