/usr/share/chromium/extensions/ublock-origin/js/1p-filters.js is in chromium-ublock-origin 1.13.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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uBlock Origin - a browser extension to block requests.
Copyright (C) 2014-2016 Raymond Hill
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://github.com/gorhill/uBlock
*/
/* global uDom, uBlockDashboard */
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
var messaging = vAPI.messaging;
var cachedUserFilters = '';
/******************************************************************************/
// This is to give a visual hint that the content of user blacklist has changed.
function userFiltersChanged(changed) {
if ( typeof changed !== 'boolean' ) {
changed = uDom.nodeFromId('userFilters').value.trim() !== cachedUserFilters;
}
uDom.nodeFromId('userFiltersApply').disabled = !changed;
uDom.nodeFromId('userFiltersRevert').disabled = !changed;
}
/******************************************************************************/
function renderUserFilters(first) {
var onRead = function(details) {
if ( details.error ) { return; }
var textarea = uDom.nodeFromId('userFilters');
cachedUserFilters = details.content.trim();
textarea.value = details.content;
if ( first ) {
textarea.value += '\n';
var textlen = textarea.value.length;
textarea.setSelectionRange(textlen, textlen);
textarea.focus();
}
userFiltersChanged(false);
};
messaging.send('dashboard', { what: 'readUserFilters' }, onRead);
}
/******************************************************************************/
function allFiltersApplyHandler() {
messaging.send('dashboard', { what: 'reloadAllFilters' });
uDom('#userFiltersApply').prop('disabled', true );
}
/******************************************************************************/
var handleImportFilePicker = function() {
// https://github.com/chrisaljoudi/uBlock/issues/1004
// Support extraction of filters from ABP backup file
var abpImporter = function(s) {
var reAbpSubscriptionExtractor = /\n\[Subscription\]\n+url=~[^\n]+([\x08-\x7E]*?)(?:\[Subscription\]|$)/ig;
var reAbpFilterExtractor = /\[Subscription filters\]([\x08-\x7E]*?)(?:\[Subscription\]|$)/i;
var matches = reAbpSubscriptionExtractor.exec(s);
// Not an ABP backup file
if ( matches === null ) {
return s;
}
//
var out = [];
var filterMatch;
while ( matches !== null ) {
if ( matches.length === 2 ) {
filterMatch = reAbpFilterExtractor.exec(matches[1].trim());
if ( filterMatch !== null && filterMatch.length === 2 ) {
out.push(filterMatch[1].trim().replace(/\\\[/g, '['));
}
}
matches = reAbpSubscriptionExtractor.exec(s);
}
return out.join('\n');
};
var fileReaderOnLoadHandler = function() {
var sanitized = abpImporter(this.result);
var textarea = uDom('#userFilters');
textarea.val(textarea.val().trim() + '\n' + sanitized);
userFiltersChanged();
};
var file = this.files[0];
if ( file === undefined || file.name === '' ) {
return;
}
if ( file.type.indexOf('text') !== 0 ) {
return;
}
var fr = new FileReader();
fr.onload = fileReaderOnLoadHandler;
fr.readAsText(file);
};
/******************************************************************************/
var startImportFilePicker = function() {
var input = document.getElementById('importFilePicker');
// Reset to empty string, this will ensure an 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();
};
/******************************************************************************/
var exportUserFiltersToFile = function() {
var val = uDom('#userFilters').val().trim();
if ( val === '' ) {
return;
}
var filename = vAPI.i18n('1pExportFilename')
.replace('{{datetime}}', uBlockDashboard.dateNowToSensibleString())
.replace(/ +/g, '_');
vAPI.download({
'url': 'data:text/plain;charset=utf-8,' + encodeURIComponent(val + '\n'),
'filename': filename
});
};
/******************************************************************************/
var applyChanges = function() {
var textarea = uDom.nodeFromId('userFilters');
var onWritten = function(details) {
if ( details.error ) {
return;
}
textarea.value = details.content;
cachedUserFilters = details.content.trim();
userFiltersChanged();
allFiltersApplyHandler();
textarea.focus();
};
var request = {
what: 'writeUserFilters',
content: textarea.value
};
messaging.send('dashboard', request, onWritten);
};
var revertChanges = function() {
uDom.nodeFromId('userFilters').value = cachedUserFilters + '\n';
userFiltersChanged();
};
/******************************************************************************/
var getCloudData = function() {
return uDom.nodeFromId('userFilters').value;
};
var setCloudData = function(data, append) {
if ( typeof data !== 'string' ) {
return;
}
var textarea = uDom.nodeFromId('userFilters');
if ( append ) {
data = uBlockDashboard.mergeNewLines(textarea.value, data);
}
textarea.value = data;
userFiltersChanged();
};
self.cloud.onPush = getCloudData;
self.cloud.onPull = setCloudData;
/******************************************************************************/
// Handle user interaction
uDom('#importUserFiltersFromFile').on('click', startImportFilePicker);
uDom('#importFilePicker').on('change', handleImportFilePicker);
uDom('#exportUserFiltersToFile').on('click', exportUserFiltersToFile);
uDom('#userFilters').on('input', userFiltersChanged);
uDom('#userFiltersApply').on('click', applyChanges);
uDom('#userFiltersRevert').on('click', revertChanges);
renderUserFilters(true);
/******************************************************************************/
// https://www.youtube.com/watch?v=UNilsLf6eW4
})();
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