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prevent uploading duplicate files

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This commit is contained in:
Emily 2018-08-10 13:11:17 -07:00
parent 37c2926252
commit 29bafe1bae
1 changed files with 16 additions and 2 deletions
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18
app/archive.js
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@ -1,6 +1,19 @@
/* global MAXFILESIZE */
import { blobStream, concatStream } from './streams';
function isDupe(newFile, array) {
for (const file of array) {
if (
newFile.name === file.name &&
newFile.size === file.size &&
newFile.lastModified === file.lastModified
) {
return true;
}
}
return false;
}
export default class Archive {
constructor(files) {
this.files = Array.from(files);
@ -37,11 +50,12 @@ export default class Archive {
}
addFiles(files) {
const newSize = files.reduce((total, file) => total + file.size, 0);
const newFiles = files.filter(file => !isDupe(file, this.files));
const newSize = newFiles.reduce((total, file) => total + file.size, 0);
if (this.size + newSize > MAXFILESIZE) {
return false;
}
this.files = this.files.concat(files);
this.files = this.files.concat(newFiles);
return true;
}