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Only create Blob for Download for IE upon click event

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Alexander Do 2018-04-09 04:44:37 +00:00
parent 2925fa8bfc
commit 60cedd7fb5
1 changed files with 22 additions and 23 deletions
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45
js/privatebin.js
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@ -1928,30 +1928,29 @@ jQuery.PrivateBin = (function($, sjcl, Base64, RawDeflate) {
// IE does not support setting a data URI on an a element
// Convert dataURI to a Blob and use msSaveBlob to download
if (window.Blob && navigator.msSaveBlob) {
// data URI format: data:[<contentType>][;base64],<data>
// position in data URI string of where data begins
var base64Start = attachmentData.indexOf(',') + 1;
// position in data URI string of where contentType ends
var contentTypeEnd = attachmentData.indexOf(';');
// extract contentType
var contentType = attachmentData.substring(5, contentTypeEnd);
// extract data and convert to binary
var buf = Base64.atob(attachmentData.substring(base64Start));
// Transform into a Blob
var bufLength = buf.length;
var array = new Uint8Array(bufLength);
for (var i = 0; i < bufLength; i++) {
array[i] = buf.charCodeAt(i);
}
var file = new window.Blob([ array ], { type: contentType });
$attachmentLink.bind('click', function () {
navigator.msSaveBlob(file, fileName);
// data URI format: data:[<mediaType>][;base64],<data>
// position in data URI string of where data begins
var base64Start = attachmentData.indexOf(',') + 1;
// position in data URI string of where mediaType ends
var mediaTypeEnd = attachmentData.indexOf(';');
// extract mediaType
var mediaType = attachmentData.substring(5, mediaTypeEnd);
// extract data and convert to binary
var decodedData = Base64.atob(attachmentData.substring(base64Start));
// Transform into a Blob
var decodedDataLength = decodedData.length;
var buf = new Uint8Array(decodedDataLength);
for (var i = 0; i < decodedDataLength; i++) {
buf[i] = decodedData.charCodeAt(i);
}
var blob = new window.Blob([ buf ], { type: mediaType });
navigator.msSaveBlob(blob, fileName);
});
} else {
$attachmentLink.attr('href', attachmentData);