handler for "abp:subscribe?" links

This commit is contained in:
gorhill 2015-03-09 13:07:08 -04:00
parent f1e065f5fb
commit 400c51ccd9
1 changed files with 127 additions and 0 deletions

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src/js/subscriber.js Normal file
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/*******************************************************************************
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/gorhill/uBlock/issues/464
if ( document instanceof HTMLDocument === false ) {
//console.debug('contentscript-start.js > not a HTLMDocument');
return false;
}
// Because in case
if ( !vAPI ) {
//console.debug('contentscript-start.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('[href^="abp:subscribe?"]') === null ) {
return;
}
/******************************************************************************/
var messager = vAPI.messaging.channel('subscriber.js');
/******************************************************************************/
var onAbpLinkClicked = function(ev) {
var receiver = event.target;
if ( receiver === null ) {
return;
}
if ( receiver.tagName.toLowerCase() !== 'a' ) {
return;
}
var href = receiver.getAttribute('href') || '';
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 onExternalListsSaved = function() {
messager.send({
what: 'reloadAllFilters',
switches: [ { location: location, off: false } ],
update: false
});
};
var onSubscriberDataReady = function(details) {
var confirmStr = details.confirmStr
.replace('{{url}}', location)
.replace('{{title}}', title);
if ( !window.confirm(confirmStr) ) {
return;
}
// List already subscribed to?
var externalLists = details.externalLists.trim().split(/\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);
/******************************************************************************/
})();
/******************************************************************************/