92 lines
3 KiB
JavaScript
92 lines
3 KiB
JavaScript
define([
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'/file/file-crypto.js',
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'/common/common-hash.js',
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'/bower_components/tweetnacl/nacl-fast.min.js',
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], function (FileCrypto, Hash) {
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var Nacl = window.nacl;
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var module = {};
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module.upload = function (file, noStore, common, updateProgress, onComplete, onError, onPending) {
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var u8 = file.blob; // This is not a blob but a uint8array
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var metadata = file.metadata;
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// if it exists, path contains the new pad location in the drive
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var path = file.path;
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var key = Nacl.randomBytes(32);
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var next = FileCrypto.encrypt(u8, metadata, key);
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var estimate = FileCrypto.computeEncryptedSize(u8.length, metadata);
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var sendChunk = function (box, cb) {
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var enc = Nacl.util.encodeBase64(box);
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common.uploadChunk(enc, function (e, msg) {
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cb(e, msg);
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});
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};
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var actual = 0;
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var again = function (err, box) {
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if (err) { throw new Error(err); }
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if (box) {
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actual += box.length;
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var progressValue = (actual / estimate * 100);
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updateProgress(progressValue);
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return void sendChunk(box, function (e) {
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if (e) { return console.error(e); }
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next(again);
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});
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}
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if (actual !== estimate) {
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console.error('Estimated size does not match actual size');
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}
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// if not box then done
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common.uploadComplete(function (e, id) {
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if (e) { return void console.error(e); }
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var uri = ['', 'blob', id.slice(0,2), id].join('/');
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console.log("encrypted blob is now available as %s", uri);
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var b64Key = Nacl.util.encodeBase64(key);
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var hash = Hash.getFileHashFromKeys(id, b64Key);
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var href = '/file/#' + hash;
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var title = metadata.name;
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if (noStore) { return void onComplete(href); }
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common.setPadTitle(title || "", href, path, function (err) {
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if (err) { return void console.error(err); }
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onComplete(href);
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common.setPadAttribute('fileType', metadata.type, null, href);
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});
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});
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};
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common.uploadStatus(estimate, function (e, pending) {
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if (e) {
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console.error(e);
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onError(e);
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return;
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}
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if (pending) {
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return void onPending(function () {
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// if the user wants to cancel the pending upload to execute that one
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common.uploadCancel(function (e, res) {
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if (e) {
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return void console.error(e);
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}
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console.log(res);
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next(again);
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});
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});
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}
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next(again);
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});
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};
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return module;
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});
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