uBlock/src/js/subscriber.js
2015-04-07 09:46:26 +08:00

137 lines
4.2 KiB
JavaScript

/*******************************************************************************
µBlock - a browser extension to block requests.
Copyright (C) 2015 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 vAPI, HTMLDocument */
/******************************************************************************/
// Injected into specific web pages, those which have been pre-selected
// because they are known to contains `abp:subscribe` links.
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
// https://github.com/chrisaljoudi/uBlock/issues/464
if ( document instanceof HTMLDocument === false ) {
//console.debug('subscriber.js > not a HTLMDocument');
return;
}
// Because in case
if ( !vAPI ) {
//console.debug('subscriber.js > vAPI not found');
return;
}
/******************************************************************************/
// Only if at least one relevant link exists on the page
// The links look like this:
// abp:subscribe?location=https://easylist-downloads.adblockplus.org/easyprivacy.txt[...]
if ( document.querySelector('a[href^="abp:"]') === null ) {
return;
}
/******************************************************************************/
var messager = vAPI.messaging.channel('subscriber.js');
/******************************************************************************/
var onAbpLinkClicked = function(ev) {
if ( ev.button !== 0 ) {
return;
}
var target = ev.target;
var limit = 3;
var href = '';
do {
if ( target instanceof HTMLAnchorElement ) {
href = target.href;
break;
}
target = target.parentNode;
} while ( target && --limit );
if ( href === '' ) {
return;
}
var matches = /^abp:\/*subscribe\/*\?location=([^&]+).*title=([^&]+)/.exec(href);
if ( matches === null ) {
return;
}
var location = decodeURIComponent(matches[1]);
var title = decodeURIComponent(matches[2]);
ev.stopPropagation();
ev.preventDefault();
var onListsSelectionDone = function() {
messager.send({ what: 'reloadAllFilters' });
};
var onExternalListsSaved = function() {
messager.send({
what: 'selectFilterLists',
switches: [ { location: location, off: false } ]
}, onListsSelectionDone);
};
var onSubscriberDataReady = function(details) {
var confirmStr = details.confirmStr
.replace('{{url}}', location)
.replace('{{title}}', title);
if ( !window.confirm(confirmStr) ) {
return;
}
// List already subscribed to?
// https://github.com/chrisaljoudi/uBlock/issues/1033
// Split on line separators, not whitespaces.
var externalLists = details.externalLists.trim().split(/\s*[\n\r]+\s*/);
if ( externalLists.indexOf(location) !== -1 ) {
return;
}
externalLists.push(location);
messager.send({
what: 'userSettings',
name: 'externalLists',
value: externalLists.join('\n')
}, onExternalListsSaved);
};
messager.send({ what: 'subscriberData' }, onSubscriberDataReady);
};
document.addEventListener('click', onAbpLinkClicked, true);
/******************************************************************************/
})();
/******************************************************************************/