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/*******************************************************************************
ηMatrix - a browser extension to black/white list requests.
Copyright (C) 2014-2019 Raymond Hill
Copyright (C) 2019-2020 Alessio Vanni
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://gitlab.com/vannilla/ematrix
uMatrix Home: https://github.com/gorhill/uMatrix
*/
/* global uDom */
'use strict';
uDom.onLoad(function () {
let backupUserDataToFile = function () {
let userDataReady = function (userData) {
vAPI.download({
'url': 'data:text/plain,'
+ encodeURIComponent(JSON.stringify(userData, null, 2)),
'filename': uDom('[data-i18n="aboutBackupFilename"]').text()
});
};
vAPI.messaging.send('about.js', {
what: 'getAllUserData'
}, userDataReady);
};
let restoreUserDataFromFile = function () {
let validateBackup = function (s) {
let userData = null;
try {
userData = JSON.parse(s);
}
catch (e) {
userData = null;
}
if (userData === null
|| typeof userData !== 'object'
|| typeof userData.version !== 'string'
|| typeof userData.when !== 'number'
|| typeof userData.settings !== 'object'
|| typeof userData.rules !== 'string'
|| typeof userData.hostsFiles !== 'object') {
return null;
}
return userData;
};
let fileReaderOnLoadHandler = function () {
let userData = validateBackup(this.result);
if (!userData) {
window.alert(uDom('[data-i18n="aboutRestoreError"]').text());
return;
}
let time = new Date(userData.when);
let msg =
uDom('[data-i18n="aboutRestoreConfirm"]')
.text()
.replace('{{time}}', time.toLocaleString());
let proceed = window.confirm(msg);
if (proceed) {
vAPI.messaging.send('about.js', {
what: 'restoreAllUserData',
userData: userData
});
}
};
let file = this.files[0];
if (file === undefined || file.name === '') {
return;
}
if (file.type.indexOf('text') !== 0) {
return;
}
let fr = new FileReader();
fr.onload = fileReaderOnLoadHandler;
fr.readAsText(file);
}
let startRestoreFilePicker = function () {
let input = document.getElementById('restoreFilePicker');
// Reset to empty string, this will ensure a change event is
// properly triggered if the user pick a file, even if it is
// the same as the last one picked.
input.value = '';
input.click();
};
let resetUserData = function () {
let proceed =
window.confirm(uDom('[data-i18n="aboutResetConfirm"]').text());
if (proceed) {
vAPI.messaging.send('about.js', {
what: 'resetAllUserData'
});
}
};
(function () {
let renderStats = function (details) {
document.getElementById('aboutVersion')
.textContent = details.version;
let template = uDom('[data-i18n="aboutStorageUsed"]').text();
let storageUsed = '?';
if (typeof details.storageUsed === 'number') {
storageUsed = details.storageUsed.toLocaleString();
}
document.getElementById('aboutStorageUsed').textContent =
template.replace('{{storageUsed}}', storageUsed);
};
vAPI.messaging.send('about.js', {
what: 'getSomeStats'
}, renderStats);
})();
uDom('#backupUserDataButton').on('click', backupUserDataToFile);
uDom('#restoreUserDataButton').on('click', startRestoreFilePicker);
uDom('#restoreFilePicker').on('change', restoreUserDataFromFile);
uDom('#resetUserDataButton').on('click', resetUserData);
});
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