95 lines
No EOL
2.8 KiB
JavaScript
95 lines
No EOL
2.8 KiB
JavaScript
'use strict';
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angular.module('copayApp.services')
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.factory('backupService', function backupServiceFactory($log, $timeout, profileService, sjcl) {
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var root = {};
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var _download = function(ew, filename, cb) {
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var NewBlob = function(data, datatype) {
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var out;
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try {
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out = new Blob([data], {
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type: datatype
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});
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$log.debug("case 1");
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} catch (e) {
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window.BlobBuilder = window.BlobBuilder ||
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window.WebKitBlobBuilder ||
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window.MozBlobBuilder ||
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window.MSBlobBuilder;
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if (e.name == 'TypeError' && window.BlobBuilder) {
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var bb = new BlobBuilder();
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bb.append(data);
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out = bb.getBlob(datatype);
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$log.debug("case 2");
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} else if (e.name == "InvalidStateError") {
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// InvalidStateError (tested on FF13 WinXP)
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out = new Blob([data], {
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type: datatype
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});
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$log.debug("case 3");
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} else {
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// We're screwed, blob constructor unsupported entirely
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$log.debug("Error");
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}
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}
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return out;
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};
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var a = document.createElement("a");
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document.body.appendChild(a);
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a.style.display = "none";
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var blob = new NewBlob(ew, 'text/plain;charset=utf-8');
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var url = window.URL.createObjectURL(blob);
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a.href = url;
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a.download = filename;
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a.click();
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$timeout(function() {
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window.URL.revokeObjectURL(url);
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}, 250);
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return cb();
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};
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root.addMetadata = function(b, opts) {
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b = JSON.parse(b);
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if (opts.historyCache) b.historyCache = opts.historyCache;
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if (opts.addressBook) b.addressBook = opts.addressBook;
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return JSON.stringify(b);
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}
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root.walletExport = function(password, opts) {
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if (!password) {
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return null;
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}
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var fc = profileService.focusedClient;
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try {
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opts = opts || {};
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var b = fc.export(opts);
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if (opts.historyCache || opts.addressBook) b = root.addMetadata(b, opts);
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var e = sjcl.encrypt(password, b, {
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iter: 10000
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});
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return e;
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} catch (err) {
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$log.debug('Error exporting wallet: ', err);
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return null;
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};
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};
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root.walletDownload = function(password, opts, cb) {
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var fc = profileService.focusedClient;
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var ew = root.walletExport(password, opts);
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if (!ew) return cb('Could not create backup');
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var walletName = (fc.alias || '') + (fc.alias ? '-' : '') + fc.credentials.walletName;
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if (opts.noSign) walletName = walletName + '-noSign'
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var filename = walletName + '-Copaybackup.aes.json';
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_download(ew, filename, cb)
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};
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return root;
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}); |