mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-10 17:17:57 +01:00
141 lines
4.1 KiB
JavaScript
141 lines
4.1 KiB
JavaScript
/*******************************************************************************
|
|
|
|
uBlock Origin - a browser extension to block requests.
|
|
Copyright (C) 2022-present 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
|
|
*/
|
|
|
|
/* jshint esversion:11 */
|
|
|
|
'use strict';
|
|
|
|
/******************************************************************************/
|
|
|
|
function parsedURLromOrigin(origin) {
|
|
try {
|
|
return new URL(origin);
|
|
} catch(ex) {
|
|
}
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
const toBroaderHostname = hn => {
|
|
if ( hn === '*' ) { return ''; }
|
|
const pos = hn.indexOf('.');
|
|
return pos !== -1 ? hn.slice(pos+1) : '*';
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
// Is hna descendant hostname of hnb?
|
|
|
|
const isDescendantHostname = (hna, hnb) => {
|
|
if ( hnb === 'all-urls' ) { return true; }
|
|
if ( hna.endsWith(hnb) === false ) { return false; }
|
|
if ( hna === hnb ) { return false; }
|
|
return hna.charCodeAt(hna.length - hnb.length - 1) === 0x2E /* '.' */;
|
|
};
|
|
|
|
const isDescendantHostnameOfIter = (hna, iterb) => {
|
|
const setb = iterb instanceof Set ? iterb : new Set(iterb);
|
|
if ( setb.has('all-urls') || setb.has('*') ) { return true; }
|
|
let hn = hna;
|
|
while ( hn ) {
|
|
const pos = hn.indexOf('.');
|
|
if ( pos === -1 ) { break; }
|
|
hn = hn.slice(pos + 1);
|
|
if ( setb.has(hn) ) { return true; }
|
|
}
|
|
return false;
|
|
};
|
|
|
|
const intersectHostnameIters = (itera, iterb) => {
|
|
const setb = iterb instanceof Set ? iterb : new Set(iterb);
|
|
if ( setb.has('all-urls') || setb.has('*') ) { return Array.from(itera); }
|
|
const out = [];
|
|
for ( const hna of itera ) {
|
|
if ( setb.has(hna) || isDescendantHostnameOfIter(hna, setb) ) {
|
|
out.push(hna);
|
|
}
|
|
}
|
|
return out;
|
|
};
|
|
|
|
const subtractHostnameIters = (itera, iterb) => {
|
|
const setb = iterb instanceof Set ? iterb : new Set(iterb);
|
|
if ( setb.has('all-urls') || setb.has('*') ) { return []; }
|
|
const out = [];
|
|
for ( const hna of itera ) {
|
|
if ( setb.has(hna) ) { continue; }
|
|
if ( isDescendantHostnameOfIter(hna, setb) ) { continue; }
|
|
out.push(hna);
|
|
}
|
|
return out;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
const matchesFromHostnames = hostnames => {
|
|
const out = [];
|
|
for ( const hn of hostnames ) {
|
|
if ( hn === '*' || hn === 'all-urls' ) {
|
|
out.length = 0;
|
|
out.push('<all_urls>');
|
|
break;
|
|
}
|
|
out.push(`*://*.${hn}/*`);
|
|
}
|
|
return out;
|
|
};
|
|
|
|
const hostnamesFromMatches = origins => {
|
|
const out = [];
|
|
for ( const origin of origins ) {
|
|
if ( origin === '<all_urls>' ) {
|
|
out.push('all-urls');
|
|
continue;
|
|
}
|
|
const match = /^\*:\/\/(?:\*\.)?([^\/]+)\/\*/.exec(origin);
|
|
if ( match === null ) { continue; }
|
|
out.push(match[1]);
|
|
}
|
|
return out;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
const fnameFromFileId = fid =>
|
|
fid.toString(32).padStart(7, '0');
|
|
|
|
const fidFromFileName = fname =>
|
|
parseInt(fname, 32);
|
|
|
|
/******************************************************************************/
|
|
|
|
export {
|
|
parsedURLromOrigin,
|
|
toBroaderHostname,
|
|
isDescendantHostname,
|
|
isDescendantHostnameOfIter,
|
|
intersectHostnameIters,
|
|
subtractHostnameIters,
|
|
matchesFromHostnames,
|
|
hostnamesFromMatches,
|
|
fnameFromFileId,
|
|
fidFromFileName,
|
|
};
|