mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-11 17:41:03 +01:00
d0738c0835
Further fine-tuning support for canonical names. Aliased canonical names will be rendered blue in the dynamic filtering pane of the popup panel.
269 lines
9.9 KiB
JavaScript
269 lines
9.9 KiB
JavaScript
/*******************************************************************************
|
|
|
|
uBlock Origin - a browser extension to block requests.
|
|
Copyright (C) 2017-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
|
|
*/
|
|
|
|
// For background page
|
|
|
|
'use strict';
|
|
|
|
/******************************************************************************/
|
|
|
|
(( ) => {
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/407
|
|
if ( vAPI.webextFlavor.soup.has('firefox') === false ) { return; }
|
|
|
|
// https://github.com/gorhill/uBlock/issues/2950
|
|
// Firefox 56 does not normalize URLs to ASCII, uBO must do this itself.
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=945240
|
|
const evalMustPunycode = ( ) => {
|
|
return vAPI.webextFlavor.soup.has('firefox') &&
|
|
vAPI.webextFlavor.major < 57;
|
|
};
|
|
|
|
let mustPunycode = evalMustPunycode();
|
|
|
|
// The real actual webextFlavor value may not be set in stone, so listen
|
|
// for possible future changes.
|
|
window.addEventListener('webextFlavor', ( ) => {
|
|
mustPunycode = evalMustPunycode();
|
|
}, { once: true });
|
|
|
|
const punycode = self.punycode;
|
|
const reAsciiHostname = /^https?:\/\/[0-9a-z_.:@-]+[/?#]/;
|
|
const parsedURL = new URL('about:blank');
|
|
|
|
// Related issues:
|
|
// - https://github.com/gorhill/uBlock/issues/1327
|
|
// - https://github.com/uBlockOrigin/uBlock-issues/issues/128
|
|
// - https://bugzilla.mozilla.org/show_bug.cgi?id=1503721
|
|
|
|
// Extend base class to normalize as per platform.
|
|
|
|
vAPI.Net = class extends vAPI.Net {
|
|
constructor() {
|
|
super();
|
|
this.pendingRequests = [];
|
|
this.cnames = new Map([ [ '', '' ] ]);
|
|
this.cnameIgnoreList = null;
|
|
this.cnameIgnore1stParty = true;
|
|
this.cnameIgnoreExceptions = true;
|
|
this.cnameIgnoreRootDocument = true;
|
|
this.cnameMaxTTL = 120;
|
|
this.cnameReplayFullURL = false;
|
|
this.cnameFlushTime = Date.now() + this.cnameMaxTTL * 60000;
|
|
this.cnameUncloak = browser.dns instanceof Object;
|
|
}
|
|
setOptions(options) {
|
|
super.setOptions(options);
|
|
this.cnameUncloak = browser.dns instanceof Object &&
|
|
options.cnameUncloak !== false;
|
|
this.cnameIgnoreList = this.regexFromStrList(options.cnameIgnoreList);
|
|
this.cnameIgnore1stParty = options.cnameIgnore1stParty !== false;
|
|
this.cnameIgnoreExceptions = options.cnameIgnoreExceptions !== false;
|
|
this.cnameIgnoreRootDocument = options.cnameIgnoreRootDocument !== false;
|
|
this.cnameMaxTTL = options.cnameMaxTTL || 120;
|
|
this.cnameReplayFullURL = options.cnameReplayFullURL === true;
|
|
this.cnames.clear(); this.cnames.set('', '');
|
|
this.cnameFlushTime = Date.now() + this.cnameMaxTTL * 60000;
|
|
}
|
|
normalizeDetails(details) {
|
|
if ( mustPunycode && !reAsciiHostname.test(details.url) ) {
|
|
parsedURL.href = details.url;
|
|
details.url = details.url.replace(
|
|
parsedURL.hostname,
|
|
punycode.toASCII(parsedURL.hostname)
|
|
);
|
|
}
|
|
|
|
const type = details.type;
|
|
|
|
if ( type === 'imageset' ) {
|
|
details.type = 'image';
|
|
return;
|
|
}
|
|
|
|
// https://github.com/uBlockOrigin/uBlock-issues/issues/345
|
|
// Re-categorize an embedded object as a `sub_frame` if its
|
|
// content type is that of a HTML document.
|
|
if ( type === 'object' && Array.isArray(details.responseHeaders) ) {
|
|
for ( const header of details.responseHeaders ) {
|
|
if ( header.name.toLowerCase() === 'content-type' ) {
|
|
if ( header.value.startsWith('text/html') ) {
|
|
details.type = 'sub_frame';
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
denormalizeTypes(types) {
|
|
if ( types.length === 0 ) {
|
|
return Array.from(this.validTypes);
|
|
}
|
|
const out = new Set();
|
|
for ( const type of types ) {
|
|
if ( this.validTypes.has(type) ) {
|
|
out.add(type);
|
|
}
|
|
if ( type === 'image' && this.validTypes.has('imageset') ) {
|
|
out.add('imageset');
|
|
}
|
|
if ( type === 'sub_frame' ) {
|
|
out.add('object');
|
|
}
|
|
}
|
|
return Array.from(out);
|
|
}
|
|
canonicalNameFromHostname(hn) {
|
|
const cn = this.cnames.get(hn);
|
|
if ( cn !== undefined && cn !== '' ) {
|
|
return cn;
|
|
}
|
|
}
|
|
processCanonicalName(hn, cn, details) {
|
|
const hnBeg = details.url.indexOf(hn);
|
|
if ( hnBeg === -1 ) { return; }
|
|
const oldURL = details.url;
|
|
let newURL = oldURL.slice(0, hnBeg) + cn;
|
|
const hnEnd = hnBeg + hn.length;
|
|
if ( this.cnameReplayFullURL ) {
|
|
newURL += oldURL.slice(hnEnd);
|
|
} else {
|
|
const pathBeg = oldURL.indexOf('/', hnEnd);
|
|
if ( pathBeg !== -1 ) {
|
|
newURL += oldURL.slice(hnEnd, pathBeg + 1);
|
|
}
|
|
}
|
|
details.url = newURL;
|
|
details.aliasURL = oldURL;
|
|
return super.onBeforeSuspendableRequest(details);
|
|
}
|
|
recordCanonicalName(hn, record) {
|
|
if ( (this.cnames.size & 0b111111) === 0 ) {
|
|
const now = Date.now();
|
|
if ( now >= this.cnameFlushTime ) {
|
|
this.cnames.clear(); this.cnames.set('', '');
|
|
this.cnameFlushTime = now + this.cnameMaxTTL * 60000;
|
|
}
|
|
}
|
|
let cname =
|
|
typeof record.canonicalName === 'string' &&
|
|
record.canonicalName !== hn
|
|
? record.canonicalName
|
|
: '';
|
|
if (
|
|
cname !== '' &&
|
|
this.cnameIgnore1stParty &&
|
|
vAPI.domainFromHostname(cname) === vAPI.domainFromHostname(hn)
|
|
) {
|
|
cname = '';
|
|
}
|
|
if (
|
|
cname !== '' &&
|
|
this.cnameIgnoreList !== null &&
|
|
this.cnameIgnoreList.test(cname)
|
|
) {
|
|
cname = '';
|
|
}
|
|
this.cnames.set(hn, cname);
|
|
return cname;
|
|
}
|
|
regexFromStrList(list) {
|
|
if (
|
|
typeof list !== 'string' ||
|
|
list.length === 0 ||
|
|
list === 'unset' ||
|
|
browser.dns instanceof Object === false
|
|
) {
|
|
return null;
|
|
}
|
|
if ( list === '*' ) {
|
|
return /^./;
|
|
}
|
|
return new RegExp(
|
|
'(?:^|\.)(?:' +
|
|
list.trim()
|
|
.split(/\s+/)
|
|
.map(a => a.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))
|
|
.join('|') +
|
|
')$'
|
|
);
|
|
}
|
|
onBeforeSuspendableRequest(details) {
|
|
const r = super.onBeforeSuspendableRequest(details);
|
|
if ( this.cnameUncloak === false ) { return r; }
|
|
if ( r !== undefined ) {
|
|
if (
|
|
r.cancel === true ||
|
|
r.redirectUrl !== undefined ||
|
|
this.cnameIgnoreExceptions
|
|
) {
|
|
return r;
|
|
}
|
|
}
|
|
if (
|
|
details.type === 'main_frame' &&
|
|
this.cnameIgnoreRootDocument
|
|
) {
|
|
return;
|
|
}
|
|
const hn = vAPI.hostnameFromNetworkURL(details.url);
|
|
const cname = this.cnames.get(hn);
|
|
if ( cname === '' ) { return; }
|
|
if ( cname !== undefined ) {
|
|
return this.processCanonicalName(hn, cname, details);
|
|
}
|
|
return browser.dns.resolve(hn, [ 'canonical_name' ]).then(
|
|
rec => {
|
|
const cname = this.recordCanonicalName(hn, rec);
|
|
if ( cname === '' ) { return; }
|
|
return this.processCanonicalName(hn, cname, details);
|
|
},
|
|
( ) => {
|
|
this.cnames.set(hn, '');
|
|
}
|
|
);
|
|
}
|
|
suspendOneRequest(details) {
|
|
const pending = {
|
|
details: Object.assign({}, details),
|
|
resolve: undefined,
|
|
promise: undefined
|
|
};
|
|
pending.promise = new Promise(resolve => {
|
|
pending.resolve = resolve;
|
|
});
|
|
this.pendingRequests.push(pending);
|
|
return pending.promise;
|
|
}
|
|
unsuspendAllRequests() {
|
|
const pendingRequests = this.pendingRequests;
|
|
this.pendingRequests = [];
|
|
for ( const entry of pendingRequests ) {
|
|
entry.resolve(this.onBeforeSuspendableRequest(entry.details));
|
|
}
|
|
}
|
|
canSuspend() {
|
|
return true;
|
|
}
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|