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nuTensor/platform/firefox/vapi-webrequest.js

264 lines
9.6 KiB
JavaScript

/*******************************************************************************
uMatrix - 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/uMatrix
*/
// 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 = 60;
this.cnameReplayFullURL = false;
this.cnameTimer = undefined;
this.canRevealCNAME = browser.dns instanceof Object;
}
setOptions(options) {
super.setOptions(options);
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('', '');
}
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);
}
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) {
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);
if ( this.cnameTimer === undefined ) {
this.cnameTimer = self.setTimeout(
( ) => {
this.cnameTimer = undefined;
this.cnames.clear(); this.cnames.set('', '');
},
this.cnameMaxTTL * 60000
);
}
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.canRevealCNAME === false ) { return r; }
if ( r !== undefined ) {
if ( r.cancel === false ) { return; }
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;
}
};
})();
/******************************************************************************/