uBlock/js/3p-filters.js

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JavaScript
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2014-06-23 16:42:43 -06:00
/*******************************************************************************
µBlock - a Chromium browser extension to block requests.
Copyright (C) 2014 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
*/
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/* global chrome, messaging, uDom */
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/******************************************************************************/
(function() {
/******************************************************************************/
var userListName = chrome.i18n.getMessage('1pPageName');
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var listDetails = {};
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var cosmeticSwitch = true;
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var externalLists = '';
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var cacheWasPurged = false;
var needUpdate = false;
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var hasCachedContent = false;
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var re3rdPartyExternalAsset = /^https?:\/\/[a-z0-9]+/;
var re3rdPartyRepoAsset = /^assets\/thirdparties\/([^\/]+)/;
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/******************************************************************************/
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messaging.start('3p-filters.js');
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var onMessage = function(msg) {
switch ( msg.what ) {
case 'loadUbiquitousBlacklistCompleted':
renderBlacklists();
break;
default:
break;
}
};
messaging.listen(onMessage);
/******************************************************************************/
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var getµb = function() {
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return chrome.extension.getBackgroundPage().µBlock;
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};
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/******************************************************************************/
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var renderNumber = function(value) {
return value.toLocaleString();
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};
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/******************************************************************************/
// TODO: get rid of background page dependencies
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var renderBlacklists = function() {
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uDom('body').toggleClass('busy', true);
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var µb = getµb();
// Assemble a pretty blacklist name if possible
var htmlFromListName = function(blacklistTitle, blacklistHref) {
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if ( blacklistHref === listDetails.userFiltersPath ) {
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return userListName;
}
if ( !blacklistTitle ) {
return blacklistHref;
}
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return blacklistTitle;
};
// Assemble a pretty blacklist name if possible
var htmlFromHomeURL = function(blacklistHref) {
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if ( blacklistHref.indexOf('assets/thirdparties/') !== 0 ) {
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return '';
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}
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var matches = re3rdPartyRepoAsset.exec(blacklistHref);
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if ( matches === null || matches.length !== 2 ) {
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return '';
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}
var hostname = matches[1];
var domain = µb.URI.domainFromHostname(hostname);
if ( domain === '' ) {
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return '';
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}
var html = [
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' <a href="http://',
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hostname,
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'" target="_blank">(',
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domain,
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')</a>'
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];
return html.join('');
};
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var purgeButtontext = chrome.i18n.getMessage('3pExternalListPurge');
var updateButtontext = chrome.i18n.getMessage('3pExternalListNew');
var obsoleteButtontext = chrome.i18n.getMessage('3pExternalListObsolete');
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var liTemplate = [
'<li class="listDetails">',
'<input type="checkbox" {{checked}}>',
' ',
'<a href="{{URL}}" type="text/plain">',
'{{name}}',
'\u200E</a>',
'{{homeURL}}',
': ',
'<span class="dim">',
chrome.i18n.getMessage('3pListsOfBlockedHostsPerListStats'),
'</span>'
].join('');
var htmlFromLeaf = function(listKey) {
var html = [];
var list = listDetails.available[listKey];
var li = liTemplate
.replace('{{checked}}', list.off ? '' : 'checked')
.replace('{{URL}}', encodeURI(listKey))
.replace('{{name}}', htmlFromListName(list.title, listKey))
.replace('{{homeURL}}', htmlFromHomeURL(listKey))
.replace('{{used}}', !list.off && !isNaN(+list.entryUsedCount) ? renderNumber(list.entryUsedCount) : '0')
.replace('{{total}}', !isNaN(+list.entryCount) ? renderNumber(list.entryCount) : '?');
html.push(li);
// https://github.com/gorhill/uBlock/issues/104
var asset = listDetails.cache[listKey];
if ( asset === undefined ) {
return html.join('\n');
}
// Update status
if ( list.off !== true ) {
var obsolete = asset.repoObsolete ||
asset.cacheObsolete ||
asset.cached !== true && re3rdPartyExternalAsset.test(listKey);
if ( obsolete ) {
html.push(
'&ensp;',
'<span class="status obsolete">',
asset.repoObsolete ? updateButtontext : obsoleteButtontext,
'</span>'
);
needUpdate = true;
}
}
// In cache
if ( asset.cached ) {
html.push(
'&ensp;',
'<span class="status purge">',
purgeButtontext,
'</span>'
);
hasCachedContent = true;
}
return html.join('\n');
};
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var htmlFromBranch = function(groupKey, listKeys) {
var html = [
'<li>',
chrome.i18n.getMessage('3pGroup' + groupKey.charAt(0).toUpperCase() + groupKey.slice(1)),
'<ul>'
];
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if ( !listKeys ) {
return html.join('');
}
listKeys.sort(function(a, b) {
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return listDetails.available[a].title.localeCompare(listDetails.available[b].title);
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});
for ( var i = 0; i < listKeys.length; i++ ) {
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html.push(htmlFromLeaf(listKeys[i]));
}
html.push('</ul>');
return html.join('');
};
// https://www.youtube.com/watch?v=unCVi4hYRlY#t=30m18s
var groupsFromLists = function(lists) {
var groups = {};
var listKeys = Object.keys(lists);
var i = listKeys.length;
var listKey, list, groupKey;
while ( i-- ) {
listKey = listKeys[i];
list = lists[listKey];
groupKey = list.group || 'nogroup';
if ( groups[groupKey] === undefined ) {
groups[groupKey] = [];
}
groups[groupKey].push(listKey);
}
return groups;
};
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var onListsReceived = function(details) {
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// Before all, set context vars
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listDetails = details;
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cosmeticSwitch = details.cosmetic;
needUpdate = false;
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hasCachedContent = false;
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// Visually split the filter lists in purpose-based groups
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var html = [];
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var groups = groupsFromLists(details.available);
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var groupKey, i;
var groupKeys = [
'default',
'ads',
'privacy',
'malware',
'social',
'multipurpose',
'regions',
'custom'
];
for ( i = 0; i < groupKeys.length; i++ ) {
groupKey = groupKeys[i];
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html.push(htmlFromBranch(groupKey, groups[groupKey]));
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delete groups[groupKey];
}
// For all groups not covered above (if any left)
groupKeys = Object.keys(groups);
for ( i = 0; i < groupKeys.length; i++ ) {
groupKey = groupKeys[i];
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html.push(htmlFromBranch(groupKey, groups[groupKey]));
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delete groups[groupKey];
}
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uDom('#listsOfBlockedHostsPrompt').text(
chrome.i18n.getMessage('3pListsOfBlockedHostsPrompt')
.replace('{{netFilterCount}}', renderNumber(details.netFilterCount))
.replace('{{cosmeticFilterCount}}', renderNumber(details.cosmeticFilterCount))
);
uDom('#autoUpdate').prop('checked', listDetails.autoUpdate === true);
uDom('#parseCosmeticFilters').prop('checked', listDetails.cosmetic === true);
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uDom('#lists').html(html.join(''));
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uDom('a').attr('target', '_blank');
updateWidgets();
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};
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messaging.ask({ what: 'getLists' }, onListsReceived);
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};
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/******************************************************************************/
// Return whether selection of lists changed.
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var listsSelectionChanged = function() {
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if ( listDetails.cosmetic !== cosmeticSwitch ) {
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return true;
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}
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if ( cacheWasPurged ) {
return true;
}
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var availableLists = listDetails.available;
var currentLists = listDetails.current;
var location, availableOff, currentOff;
// This check existing entries
for ( location in availableLists ) {
if ( availableLists.hasOwnProperty(location) === false ) {
continue;
}
availableOff = availableLists[location].off === true;
currentOff = currentLists[location] === undefined || currentLists[location].off === true;
if ( availableOff !== currentOff ) {
return true;
}
}
// This check removed entries
for ( location in currentLists ) {
if ( currentLists.hasOwnProperty(location) === false ) {
continue;
}
currentOff = currentLists[location].off === true;
availableOff = availableLists[location] === undefined || availableLists[location].off === true;
if ( availableOff !== currentOff ) {
return true;
}
}
return false;
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};
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/******************************************************************************/
// Return whether content need update.
var listsContentChanged = function() {
return needUpdate;
};
/******************************************************************************/
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// This is to give a visual hint that the selection of blacklists has changed.
var updateWidgets = function() {
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uDom('#buttonApply').toggleClass('disabled', !listsSelectionChanged());
uDom('#buttonUpdate').toggleClass('disabled', !listsContentChanged());
uDom('#buttonPurgeAll').toggleClass('disabled', !hasCachedContent);
uDom('body').toggleClass('busy', false);
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};
/******************************************************************************/
var onListCheckboxChanged = function() {
var href = uDom(this).parent().find('a').first().attr('href');
if ( typeof href !== 'string' ) {
return;
}
if ( listDetails.available[href] === undefined ) {
return;
}
listDetails.available[href].off = !this.checked;
updateWidgets();
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};
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/******************************************************************************/
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var onListLinkClicked = function(ev) {
messaging.tell({
what: 'gotoExtensionURL',
url: 'asset-viewer.html?url=' + uDom(this).attr('href')
});
ev.preventDefault();
};
/******************************************************************************/
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var onPurgeClicked = function() {
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var button = uDom(this);
var li = button.parent();
var href = li.find('a').first().attr('href');
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if ( !href ) {
return;
}
messaging.tell({ what: 'purgeCache', path: href });
button.remove();
if ( li.find('input').first().prop('checked') ) {
cacheWasPurged = true;
updateWidgets();
}
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};
/******************************************************************************/
var reloadAll = function(update) {
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// Loading may take a while when resources are fetched from remote
// servers. We do not want the user to force reload while we are reloading.
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uDom('body').toggleClass('busy', true);
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// Reload blacklists
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messaging.tell({
what: 'userSettings',
name: 'parseAllABPHideFilters',
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value: listDetails.cosmetic
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});
// Reload blacklists
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var switches = [];
var lis = uDom('#lists .listDetails');
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var i = lis.length();
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var path;
while ( i-- ) {
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path = lis
.subset(i)
.find('a')
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.attr('href');
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switches.push({
location: path,
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off: lis.subset(i).find('input').prop('checked') === false
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});
}
messaging.tell({
what: 'reloadAllFilters',
switches: switches,
update: update
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});
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cacheWasPurged = false;
};
/******************************************************************************/
var buttonApplyHandler = function() {
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reloadAll(false);
uDom('#buttonApply').toggleClass('enabled', false);
};
/******************************************************************************/
var buttonUpdateHandler = function() {
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if ( needUpdate ) {
reloadAll(true);
}
};
/******************************************************************************/
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var buttonPurgeAllHandler = function() {
var onCompleted = function() {
renderBlacklists();
};
messaging.ask({ what: 'purgeAllCaches' }, onCompleted);
};
/******************************************************************************/
var autoUpdateCheckboxChanged = function() {
messaging.tell({
what: 'userSettings',
name: 'autoUpdate',
value: this.checked
});
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};
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/******************************************************************************/
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var cosmeticSwitchChanged = function() {
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listDetails.cosmetic = this.checked;
updateWidgets();
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};
/******************************************************************************/
var renderExternalLists = function() {
var onReceived = function(details) {
uDom('#externalLists').val(details);
externalLists = details;
};
messaging.ask({ what: 'userSettings', name: 'externalLists' }, onReceived);
};
/******************************************************************************/
var externalListsChangeHandler = function() {
uDom('#externalListsApply').prop(
'disabled',
this.value.trim() === externalLists
);
};
/******************************************************************************/
var externalListsApplyHandler = function() {
externalLists = uDom('#externalLists').val();
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messaging.tell({
what: 'userSettings',
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name: 'externalLists',
value: externalLists
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});
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renderBlacklists();
uDom('#externalListsApply').prop('disabled', true);
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};
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/******************************************************************************/
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uDom.onLoad(function() {
uDom('#autoUpdate').on('change', autoUpdateCheckboxChanged);
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uDom('#parseCosmeticFilters').on('change', cosmeticSwitchChanged);
uDom('#buttonApply').on('click', buttonApplyHandler);
uDom('#buttonUpdate').on('click', buttonUpdateHandler);
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uDom('#buttonPurgeAll').on('click', buttonPurgeAllHandler);
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uDom('#lists').on('change', '.listDetails > input', onListCheckboxChanged);
uDom('#lists').on('click', '.listDetails > a:nth-of-type(1)', onListLinkClicked);
uDom('#lists').on('click', 'span.purge', onPurgeClicked);
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uDom('#externalLists').on('input', externalListsChangeHandler);
uDom('#externalListsApply').on('click', externalListsApplyHandler);
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renderBlacklists();
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renderExternalLists();
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});
/******************************************************************************/
})();