1 line
14 KiB
JavaScript
1 line
14 KiB
JavaScript
(function(){function e(e){return!!e.exifdata}function t(e,t){t=t||e.match(/^data\:([^\;]+)\;base64,/im)[1]||"",e=e.replace(/^data\:([^\;]+)\;base64,/gim,"");for(var n=atob(e),r=n.length,i=new ArrayBuffer(r),o=new Uint8Array(i),a=0;a<r;a++)o[a]=n.charCodeAt(a);return i}function r(e,t){var n=new XMLHttpRequest;n.open("GET",e,!0),n.responseType="blob",n.onload=function(e){200!=this.status&&0!==this.status||t(this.response)},n.send()}function i(e,n){function i(t){var r=o(t);e.exifdata=r||{};var i=a(t);if(e.iptcdata=i||{},F.isXmpEnabled){var s=m(t);e.xmpdata=s||{}}n&&n.call(e)}if(e.src)if(/^data\:/i.test(e.src))i(t(e.src));else if(/^blob\:/i.test(e.src))(l=new FileReader).onload=function(e){i(e.target.result)},r(e.src,function(e){l.readAsArrayBuffer(e)});else{var s=new XMLHttpRequest;s.onload=function(){if(200!=this.status&&0!==this.status)throw"Could not load image";i(s.response),s=null},s.open("GET",e.src,!0),s.responseType="arraybuffer",s.send(null)}else if(self.FileReader&&(e instanceof self.Blob||e instanceof self.File)){var l=new FileReader;l.onload=function(e){S&&console.log("Got file of length "+e.target.result.byteLength),i(e.target.result)},l.readAsArrayBuffer(e)}}function o(e){var t=new DataView(e);if(S&&console.log("Got file of length "+e.byteLength),255!=t.getUint8(0)||216!=t.getUint8(1))return S&&console.log("Not a valid JPEG"),!1;for(var n,r=2,i=e.byteLength;r<i;){if(255!=t.getUint8(r))return S&&console.log("Not a valid marker at offset "+r+", found: "+t.getUint8(r)),!1;if(n=t.getUint8(r+1),S&&console.log(n),225==n)return S&&console.log("Found 0xFFE1 marker"),g(t,r+4,t.getUint16(r+2));r+=2+t.getUint16(r+2)}}function a(e){var t=new DataView(e);if(S&&console.log("Got file of length "+e.byteLength),255!=t.getUint8(0)||216!=t.getUint8(1))return S&&console.log("Not a valid JPEG"),!1;for(var n=2,r=e.byteLength;n<r;){if(function(e,t){return 56===e.getUint8(t)&&66===e.getUint8(t+1)&&73===e.getUint8(t+2)&&77===e.getUint8(t+3)&&4===e.getUint8(t+4)&&4===e.getUint8(t+5)}(t,n)){var i=t.getUint8(n+7);return i%2!=0&&(i+=1),0===i&&(i=4),s(e,n+8+i,t.getUint16(n+6+i))}n++}}function s(e,t,n){for(var r,i,o,a,s=new DataView(e),l={},u=t;u<t+n;)28===s.getUint8(u)&&2===s.getUint8(u+1)&&(a=s.getUint8(u+2))in v&&((o=s.getInt16(u+3))+5,i=v[a],r=f(s,u+5,o),l.hasOwnProperty(i)?l[i]instanceof Array?l[i].push(r):l[i]=[l[i],r]:l[i]=r),u++;return l}function l(e,t,n,r,i){var o,a,s,l=e.getUint16(n,!i),c={};for(s=0;s<l;s++)o=n+12*s+2,!(a=r[e.getUint16(o,!i)])&&S&&console.log("Unknown tag: "+e.getUint16(o,!i)),c[a]=u(e,o,t,n,i);return c}function u(e,t,n,r,i){var o,a,s,l,u,c,d=e.getUint16(t+2,!i),g=e.getUint32(t+4,!i),m=e.getUint32(t+8,!i)+n;switch(d){case 1:case 7:if(1==g)return e.getUint8(t+8,!i);for(o=g>4?m:t+8,a=[],l=0;l<g;l++)a[l]=e.getUint8(o+l);return a;case 2:return o=g>4?m:t+8,f(e,o,g-1);case 3:if(1==g)return e.getUint16(t+8,!i);for(o=g>2?m:t+8,a=[],l=0;l<g;l++)a[l]=e.getUint16(o+2*l,!i);return a;case 4:if(1==g)return e.getUint32(t+8,!i);for(a=[],l=0;l<g;l++)a[l]=e.getUint32(m+4*l,!i);return a;case 5:if(1==g)return u=e.getUint32(m,!i),c=e.getUint32(m+4,!i),s=new Number(u/c),s.numerator=u,s.denominator=c,s;for(a=[],l=0;l<g;l++)u=e.getUint32(m+8*l,!i),c=e.getUint32(m+4+8*l,!i),a[l]=new Number(u/c),a[l].numerator=u,a[l].denominator=c;return a;case 9:if(1==g)return e.getInt32(t+8,!i);for(a=[],l=0;l<g;l++)a[l]=e.getInt32(m+4*l,!i);return a;case 10:if(1==g)return e.getInt32(m,!i)/e.getInt32(m+4,!i);for(a=[],l=0;l<g;l++)a[l]=e.getInt32(m+8*l,!i)/e.getInt32(m+4+8*l,!i);return a}}function c(e,t,n){var r=e.getUint16(t,!n);return e.getUint32(t+2+12*r,!n)}function d(e,t,n,r){var i=c(e,t+n,r);if(!i)return{};if(i>e.byteLength)return{};var o=l(e,t,t+i,C,r);if(o.Compression)switch(o.Compression){case 6:if(o.JpegIFOffset&&o.JpegIFByteCount){var a=t+o.JpegIFOffset,s=o.JpegIFByteCount;o.blob=new Blob([new Uint8Array(e.buffer,a,s)],{type:"image/jpeg"})}break;case 1:console.log("Thumbnail image format is TIFF, which is not implemented.");break;default:console.log("Unknown thumbnail image format '%s'",o.Compression)}else 2==o.PhotometricInterpretation&&console.log("Thumbnail image format is RGB, which is not implemented.");return o}function f(e,t,r){var i="";for(n=t;n<t+r;n++)i+=String.fromCharCode(e.getUint8(n));return i}function g(e,t){if("Exif"!=f(e,t,4))return S&&console.log("Not valid EXIF data! 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"+e.byteLength),255!=t.getUint8(0)||216!=t.getUint8(1))return S&&console.log("Not a valid JPEG"),!1;for(var n=2,r=e.byteLength,i=new DOMParser;n<r-4;){if("http"==f(t,n,4)){var o=f(t,n-1,t.getUint16(n-2)-1),a=o.indexOf("xmpmeta>")+8,s=(o=o.substring(o.indexOf("<x:xmpmeta"),a)).indexOf("x:xmpmeta")+10;return o=o.slice(0,s)+'xmlns:Iptc4xmpCore="http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tiff="http://ns.adobe.com/tiff/1.0/" xmlns:plus="http://schemas.android.com/apk/lib/com.google.android.gms.plus" xmlns:ext="http://www.gettyimages.com/xsltExtension/1.0" xmlns:exif="http://ns.adobe.com/exif/1.0/" xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#" xmlns:stRef="http://ns.adobe.com/xap/1.0/sType/ResourceRef#" xmlns:crs="http://ns.adobe.com/camera-raw-settings/1.0/" xmlns:xapGImg="http://ns.adobe.com/xap/1.0/g/img/" xmlns:Iptc4xmpExt="http://iptc.org/std/Iptc4xmpExt/2008-02-29/" '+o.slice(s),h(i.parseFromString(o,"text/xml"))}n++}}}function p(e){var t={};if(1==e.nodeType){if(e.attributes.length>0){t["@attributes"]={};for(var n=0;n<e.attributes.length;n++){var r=e.attributes.item(n);t["@attributes"][r.nodeName]=r.nodeValue}}}else if(3==e.nodeType)return e.nodeValue;if(e.hasChildNodes())for(var i=0;i<e.childNodes.length;i++){var o=e.childNodes.item(i),a=o.nodeName;if(null==t[a])t[a]=p(o);else{if(null==t[a].push){var s=t[a];t[a]=[],t[a].push(s)}t[a].push(p(o))}}return t}function h(e){try{var t={};if(e.children.length>0)for(var n=0;n<e.children.length;n++){var r=e.children.item(n),i=r.attributes;for(var o in i){var a=i[o],s=a.nodeName,l=a.nodeValue;void 0!==s&&(t[s]=l)}var u=r.nodeName;if(void 0===t[u])t[u]=p(r);else{if(void 0===t[u].push){var c=t[u];t[u]=[],t[u].push(c)}t[u].push(p(r))}}else t=e.textContent;return t}catch(e){console.log(e.message)}}var S=!1,P=this,F=function(e){return e instanceof F?e:this instanceof F?void(this.EXIFwrapped=e):new F(e)};"undefined"!=typeof exports?("undefined"!=typeof module&&module.exports&&(exports=module.exports=F),exports.EXIF=F):P.EXIF=F;var y=F.Tags={36864:"ExifVersion",40960:"FlashpixVersion",40961:"ColorSpace",40962:"PixelXDimension",40963:"PixelYDimension",37121:"ComponentsConfiguration",37122:"CompressedBitsPerPixel",37500:"MakerNote",37510:"UserComment",40964:"RelatedSoundFile",36867:"DateTimeOriginal",36868:"DateTimeDigitized",37520:"SubsecTime",37521:"SubsecTimeOriginal",37522:"SubsecTimeDigitized",33434:"ExposureTime",33437:"FNumber",34850:"ExposureProgram",34852:"SpectralSensitivity",34855:"ISOSpeedRatings",34856:"OECF",37377:"ShutterSpeedValue",37378:"ApertureValue",37379:"BrightnessValue",37380:"ExposureBias",37381:"MaxApertureValue",37382:"SubjectDistance",37383:"MeteringMode",37384:"LightSource",37385:"Flash",37396:"SubjectArea",37386:"FocalLength",41483:"FlashEnergy",41484:"SpatialFrequencyResponse",41486:"FocalPlaneXResolution",41487:"FocalPlaneYResolution",41488:"FocalPlaneResolutionUnit",41492:"SubjectLocation",41493:"ExposureIndex",41495:"SensingMethod",41728:"FileSource",41729:"SceneType",41730:"CFAPattern",41985:"CustomRendered",41986:"ExposureMode",41987:"WhiteBalance",41988:"DigitalZoomRation",41989:"FocalLengthIn35mmFilm",41990:"SceneCaptureType",41991:"GainControl",41992:"Contrast",41993:"Saturation",41994:"Sharpness",41995:"DeviceSettingDescription",41996:"SubjectDistanceRange",40965:"InteroperabilityIFDPointer",42016:"ImageUniqueID"},b=F.TiffTags={256:"ImageWidth",257:"ImageHeight",34665:"ExifIFDPointer",34853:"GPSInfoIFDPointer",40965:"InteroperabilityIFDPointer",258:"BitsPerSample",259:"Compression",262:"PhotometricInterpretation",274:"Orientation",277:"SamplesPerPixel",284:"PlanarConfiguration",530:"YCbCrSubSampling",531:"YCbCrPositioning",282:"XResolution",283:"YResolution",296:"ResolutionUnit",273:"StripOffsets",278:"RowsPerStrip",279:"StripByteCounts",513:"JPEGInterchangeFormat",514:"JPEGInterchangeFormatLength",301:"TransferFunction",318:"WhitePoint",319:"PrimaryChromaticities",529:"YCbCrCoefficients",532:"ReferenceBlackWhite",306:"DateTime",270:"ImageDescription",271:"Make",272:"Model",305:"Software",315:"Artist",33432:"Copyright"},x=F.GPSTags={0:"GPSVersionID",1:"GPSLatitudeRef",2:"GPSLatitude",3:"GPSLongitudeRef",4:"GPSLongitude",5:"GPSAltitudeRef",6:"GPSAltitude",7:"GPSTimeStamp",8:"GPSSatellites",9:"GPSStatus",10:"GPSMeasureMode",11:"GPSDOP",12:"GPSSpeedRef",13:"GPSSpeed",14:"GPSTrackRef",15:"GPSTrack",16:"GPSImgDirectionRef",17:"GPSImgDirection",18:"GPSMapDatum",19:"GPSDestLatitudeRef",20:"GPSDestLatitude",21:"GPSDestLongitudeRef",22:"GPSDestLongitude",23:"GPSDestBearingRef",24:"GPSDestBearing",25:"GPSDestDistanceRef",26:"GPSDestDistance",27:"GPSProcessingMethod",28:"GPSAreaInformation",29:"GPSDateStamp",30:"GPSDifferential"},C=F.IFD1Tags={256:"ImageWidth",257:"ImageHeight",258:"BitsPerSample",259:"Compression",262:"PhotometricInterpretation",273:"StripOffsets",274:"Orientation",277:"SamplesPerPixel",278:"RowsPerStrip",279:"StripByteCounts",282:"XResolution",283:"YResolution",284:"PlanarConfiguration",296:"ResolutionUnit",513:"JpegIFOffset",514:"JpegIFByteCount",529:"YCbCrCoefficients",530:"YCbCrSubSampling",531:"YCbCrPositioning",532:"ReferenceBlackWhite"},I=F.StringValues={ExposureProgram:{0:"Not defined",1:"Manual",2:"Normal program",3:"Aperture priority",4:"Shutter priority",5:"Creative program",6:"Action program",7:"Portrait mode",8:"Landscape mode"},MeteringMode:{0:"Unknown",1:"Average",2:"CenterWeightedAverage",3:"Spot",4:"MultiSpot",5:"Pattern",6:"Partial",255:"Other"},LightSource:{0:"Unknown",1:"Daylight",2:"Fluorescent",3:"Tungsten (incandescent light)",4:"Flash",9:"Fine weather",10:"Cloudy weather",11:"Shade",12:"Daylight fluorescent (D 5700 - 7100K)",13:"Day white fluorescent (N 4600 - 5400K)",14:"Cool white fluorescent (W 3900 - 4500K)",15:"White fluorescent (WW 3200 - 3700K)",17:"Standard light A",18:"Standard light B",19:"Standard light C",20:"D55",21:"D65",22:"D75",23:"D50",24:"ISO studio tungsten",255:"Other"},Flash:{0:"Flash did not fire",1:"Flash fired",5:"Strobe return light not detected",7:"Strobe return light detected",9:"Flash fired, compulsory flash mode",13:"Flash fired, compulsory flash mode, return light not detected",15:"Flash fired, compulsory flash mode, return light detected",16:"Flash did not fire, compulsory flash mode",24:"Flash did not fire, auto mode",25:"Flash fired, auto mode",29:"Flash fired, auto mode, return light not detected",31:"Flash fired, auto mode, return light detected",32:"No flash function",65:"Flash fired, red-eye reduction mode",69:"Flash fired, red-eye reduction mode, return light not detected",71:"Flash fired, red-eye reduction mode, return light detected",73:"Flash fired, compulsory flash mode, red-eye reduction mode",77:"Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected",79:"Flash fired, compulsory flash mode, red-eye reduction mode, return light detected",89:"Flash fired, auto mode, red-eye reduction mode",93:"Flash fired, auto mode, return light not detected, red-eye reduction mode",95:"Flash fired, auto mode, return light detected, red-eye reduction mode"},SensingMethod:{1:"Not defined",2:"One-chip color area sensor",3:"Two-chip color area sensor",4:"Three-chip color area sensor",5:"Color sequential area sensor",7:"Trilinear sensor",8:"Color sequential linear sensor"},SceneCaptureType:{0:"Standard",1:"Landscape",2:"Portrait",3:"Night scene"},SceneType:{1:"Directly photographed"},CustomRendered:{0:"Normal process",1:"Custom process"},WhiteBalance:{0:"Auto white balance",1:"Manual white balance"},GainControl:{0:"None",1:"Low gain up",2:"High gain up",3:"Low gain down",4:"High gain down"},Contrast:{0:"Normal",1:"Soft",2:"Hard"},Saturation:{0:"Normal",1:"Low saturation",2:"High saturation"},Sharpness:{0:"Normal",1:"Soft",2:"Hard"},SubjectDistanceRange:{0:"Unknown",1:"Macro",2:"Close view",3:"Distant view"},FileSource:{3:"DSC"},Components:{0:"",1:"Y",2:"Cb",3:"Cr",4:"R",5:"G",6:"B"}},v={120:"caption",110:"credit",25:"keywords",55:"dateCreated",80:"byline",85:"bylineTitle",122:"captionWriter",105:"headline",116:"copyright",15:"category"};F.enableXmp=function(){F.isXmpEnabled=!0},F.disableXmp=function(){F.isXmpEnabled=!1},F.getData=function(t,n){return!((self.Image&&t instanceof self.Image||self.HTMLImageElement&&t instanceof self.HTMLImageElement)&&!t.complete)&&(e(t)?n&&n.call(t):i(t,n),!0)},F.getTag=function(t,n){if(e(t))return t.exifdata[n]},F.getIptcTag=function(t,n){if(e(t))return t.iptcdata[n]},F.getAllTags=function(t){if(!e(t))return{};var n,r=t.exifdata,i={};for(n in r)r.hasOwnProperty(n)&&(i[n]=r[n]);return i},F.getAllIptcTags=function(t){if(!e(t))return{};var n,r=t.iptcdata,i={};for(n in r)r.hasOwnProperty(n)&&(i[n]=r[n]);return i},F.pretty=function(t){if(!e(t))return"";var n,r=t.exifdata,i="";for(n in r)r.hasOwnProperty(n)&&("object"==typeof r[n]?r[n]instanceof Number?i+=n+" : "+r[n]+" ["+r[n].numerator+"/"+r[n].denominator+"]\r\n":i+=n+" : ["+r[n].length+" values]\r\n":i+=n+" : "+r[n]+"\r\n");return i},F.readFromBinaryFile=function(e){return o(e)},"function"==typeof define&&define.amd&&define("exif-js",[],function(){return F})}).call(this); |