Byparr/extentions/uBOL-home/rulesets/scripting/scriptlet/annoyances-overlays.prevent-fetch.js
2024-07-24 13:57:40 +00:00

485 lines
17 KiB
JavaScript

/*******************************************************************************
uBlock Origin Lite - a comprehensive, MV3-compliant content blocker
Copyright (C) 2014-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 */
/* global cloneInto */
'use strict';
// ruleset: annoyances-overlays
/******************************************************************************/
// Important!
// Isolate from global scope
// Start of local scope
(( ) => {
/******************************************************************************/
// Start of code to inject
const uBOL_noFetchIf = function() {
const scriptletGlobals = {}; // jshint ignore: line
const argsList = [["analytics"],["googlesyndication"],["ads"],["/googlesyndication|googletag/"],["cloudflareinsights.com"]];
const hostnamesMap = new Map([["textcleaner.net",1],["socialcounts.org",1],["viewing.nyc",1],["autopareri.com",1],["theonegenerator.com",2],["mcskinhistory.com",2],["bypass.city",3],["adbypass.org",3],["amtraker.com",4]]);
const entitiesMap = new Map([["ddys",0]]);
const exceptionsMap = new Map([]);
/******************************************************************************/
function noFetchIf(
propsToMatch = '',
responseBody = '',
responseType = ''
) {
const safe = safeSelf();
const logPrefix = safe.makeLogPrefix('prevent-fetch', propsToMatch, responseBody, responseType);
const needles = [];
for ( const condition of propsToMatch.split(/\s+/) ) {
if ( condition === '' ) { continue; }
const pos = condition.indexOf(':');
let key, value;
if ( pos !== -1 ) {
key = condition.slice(0, pos);
value = condition.slice(pos + 1);
} else {
key = 'url';
value = condition;
}
needles.push({ key, re: safe.patternToRegex(value) });
}
const validResponseProps = {
ok: [ false, true ],
statusText: [ '', 'Not Found' ],
type: [ 'basic', 'cors', 'default', 'error', 'opaque' ],
};
const responseProps = {
statusText: { value: 'OK' },
};
if ( /^\{.*\}$/.test(responseType) ) {
try {
Object.entries(JSON.parse(responseType)).forEach(([ p, v ]) => {
if ( validResponseProps[p] === undefined ) { return; }
if ( validResponseProps[p].includes(v) === false ) { return; }
responseProps[p] = { value: v };
});
}
catch(ex) {}
} else if ( responseType !== '' ) {
if ( validResponseProps.type.includes(responseType) ) {
responseProps.type = { value: responseType };
}
}
self.fetch = new Proxy(self.fetch, {
apply: function(target, thisArg, args) {
const details = args[0] instanceof self.Request
? args[0]
: Object.assign({ url: args[0] }, args[1]);
let proceed = true;
try {
const props = new Map();
for ( const prop in details ) {
let v = details[prop];
if ( typeof v !== 'string' ) {
try { v = safe.JSON_stringify(v); }
catch(ex) { }
}
if ( typeof v !== 'string' ) { continue; }
props.set(prop, v);
}
if ( propsToMatch === '' && responseBody === '' ) {
const out = Array.from(props).map(a => `${a[0]}:${a[1]}`);
safe.uboLog(logPrefix, `Called: ${out.join('\n')}`);
return Reflect.apply(target, thisArg, args);
}
proceed = needles.length === 0;
for ( const { key, re } of needles ) {
if (
props.has(key) === false ||
re.test(props.get(key)) === false
) {
proceed = true;
break;
}
}
} catch(ex) {
}
if ( proceed ) {
return Reflect.apply(target, thisArg, args);
}
return generateContentFn(responseBody).then(text => {
safe.uboLog(logPrefix, `Prevented with response "${text}"`);
const response = new Response(text, {
headers: {
'Content-Length': text.length,
}
});
const props = Object.assign(
{ url: { value: details.url } },
responseProps
);
safe.Object_defineProperties(response, props);
return response;
});
}
});
}
function generateContentFn(directive) {
const safe = safeSelf();
const randomize = len => {
const chunks = [];
let textSize = 0;
do {
const s = safe.Math_random().toString(36).slice(2);
chunks.push(s);
textSize += s.length;
}
while ( textSize < len );
return chunks.join(' ').slice(0, len);
};
if ( directive === 'true' ) {
return Promise.resolve(randomize(10));
}
if ( directive === 'emptyObj' ) {
return Promise.resolve('{}');
}
if ( directive === 'emptyArr' ) {
return Promise.resolve('[]');
}
if ( directive === 'emptyStr' ) {
return Promise.resolve('');
}
if ( directive.startsWith('length:') ) {
const match = /^length:(\d+)(?:-(\d+))?$/.exec(directive);
if ( match ) {
const min = parseInt(match[1], 10);
const extent = safe.Math_max(parseInt(match[2], 10) || 0, min) - min;
const len = safe.Math_min(min + extent * safe.Math_random(), 500000);
return Promise.resolve(randomize(len | 0));
}
}
if ( directive.startsWith('war:') && scriptletGlobals.warOrigin ) {
return new Promise(resolve => {
const warOrigin = scriptletGlobals.warOrigin;
const warName = directive.slice(4);
const fullpath = [ warOrigin, '/', warName ];
const warSecret = scriptletGlobals.warSecret;
if ( warSecret !== undefined ) {
fullpath.push('?secret=', warSecret);
}
const warXHR = new safe.XMLHttpRequest();
warXHR.responseType = 'text';
warXHR.onloadend = ev => {
resolve(ev.target.responseText || '');
};
warXHR.open('GET', fullpath.join(''));
warXHR.send();
});
}
return Promise.resolve('');
}
function safeSelf() {
if ( scriptletGlobals.safeSelf ) {
return scriptletGlobals.safeSelf;
}
const self = globalThis;
const safe = {
'Array_from': Array.from,
'Error': self.Error,
'Function_toStringFn': self.Function.prototype.toString,
'Function_toString': thisArg => safe.Function_toStringFn.call(thisArg),
'Math_floor': Math.floor,
'Math_max': Math.max,
'Math_min': Math.min,
'Math_random': Math.random,
'Object': Object,
'Object_defineProperty': Object.defineProperty.bind(Object),
'Object_defineProperties': Object.defineProperties.bind(Object),
'Object_fromEntries': Object.fromEntries.bind(Object),
'Object_getOwnPropertyDescriptor': Object.getOwnPropertyDescriptor.bind(Object),
'RegExp': self.RegExp,
'RegExp_test': self.RegExp.prototype.test,
'RegExp_exec': self.RegExp.prototype.exec,
'Request_clone': self.Request.prototype.clone,
'XMLHttpRequest': self.XMLHttpRequest,
'addEventListener': self.EventTarget.prototype.addEventListener,
'removeEventListener': self.EventTarget.prototype.removeEventListener,
'fetch': self.fetch,
'JSON': self.JSON,
'JSON_parseFn': self.JSON.parse,
'JSON_stringifyFn': self.JSON.stringify,
'JSON_parse': (...args) => safe.JSON_parseFn.call(safe.JSON, ...args),
'JSON_stringify': (...args) => safe.JSON_stringifyFn.call(safe.JSON, ...args),
'log': console.log.bind(console),
// Properties
logLevel: 0,
// Methods
makeLogPrefix(...args) {
return this.sendToLogger && `[${args.join(' \u205D ')}]` || '';
},
uboLog(...args) {
if ( this.sendToLogger === undefined ) { return; }
if ( args === undefined || args[0] === '' ) { return; }
return this.sendToLogger('info', ...args);
},
uboErr(...args) {
if ( this.sendToLogger === undefined ) { return; }
if ( args === undefined || args[0] === '' ) { return; }
return this.sendToLogger('error', ...args);
},
escapeRegexChars(s) {
return s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
},
initPattern(pattern, options = {}) {
if ( pattern === '' ) {
return { matchAll: true };
}
const expect = (options.canNegate !== true || pattern.startsWith('!') === false);
if ( expect === false ) {
pattern = pattern.slice(1);
}
const match = /^\/(.+)\/([gimsu]*)$/.exec(pattern);
if ( match !== null ) {
return {
re: new this.RegExp(
match[1],
match[2] || options.flags
),
expect,
};
}
if ( options.flags !== undefined ) {
return {
re: new this.RegExp(this.escapeRegexChars(pattern),
options.flags
),
expect,
};
}
return { pattern, expect };
},
testPattern(details, haystack) {
if ( details.matchAll ) { return true; }
if ( details.re ) {
return this.RegExp_test.call(details.re, haystack) === details.expect;
}
return haystack.includes(details.pattern) === details.expect;
},
patternToRegex(pattern, flags = undefined, verbatim = false) {
if ( pattern === '' ) { return /^/; }
const match = /^\/(.+)\/([gimsu]*)$/.exec(pattern);
if ( match === null ) {
const reStr = this.escapeRegexChars(pattern);
return new RegExp(verbatim ? `^${reStr}$` : reStr, flags);
}
try {
return new RegExp(match[1], match[2] || undefined);
}
catch(ex) {
}
return /^/;
},
getExtraArgs(args, offset = 0) {
const entries = args.slice(offset).reduce((out, v, i, a) => {
if ( (i & 1) === 0 ) {
const rawValue = a[i+1];
const value = /^\d+$/.test(rawValue)
? parseInt(rawValue, 10)
: rawValue;
out.push([ a[i], value ]);
}
return out;
}, []);
return this.Object_fromEntries(entries);
},
onIdle(fn, options) {
if ( self.requestIdleCallback ) {
return self.requestIdleCallback(fn, options);
}
return self.requestAnimationFrame(fn);
},
};
scriptletGlobals.safeSelf = safe;
if ( scriptletGlobals.bcSecret === undefined ) { return safe; }
// This is executed only when the logger is opened
const bc = new self.BroadcastChannel(scriptletGlobals.bcSecret);
let bcBuffer = [];
safe.logLevel = scriptletGlobals.logLevel || 1;
safe.sendToLogger = (type, ...args) => {
if ( args.length === 0 ) { return; }
const text = `[${document.location.hostname || document.location.href}]${args.join(' ')}`;
if ( bcBuffer === undefined ) {
return bc.postMessage({ what: 'messageToLogger', type, text });
}
bcBuffer.push({ type, text });
};
bc.onmessage = ev => {
const msg = ev.data;
switch ( msg ) {
case 'iamready!':
if ( bcBuffer === undefined ) { break; }
bcBuffer.forEach(({ type, text }) =>
bc.postMessage({ what: 'messageToLogger', type, text })
);
bcBuffer = undefined;
break;
case 'setScriptletLogLevelToOne':
safe.logLevel = 1;
break;
case 'setScriptletLogLevelToTwo':
safe.logLevel = 2;
break;
}
};
bc.postMessage('areyouready?');
return safe;
}
/******************************************************************************/
const hnParts = [];
try { hnParts.push(...document.location.hostname.split('.')); }
catch(ex) { }
const hnpartslen = hnParts.length;
if ( hnpartslen === 0 ) { return; }
const todoIndices = new Set();
const tonotdoIndices = [];
// Exceptions
if ( exceptionsMap.size !== 0 ) {
for ( let i = 0; i < hnpartslen; i++ ) {
const hn = hnParts.slice(i).join('.');
const excepted = exceptionsMap.get(hn);
if ( excepted ) { tonotdoIndices.push(...excepted); }
}
exceptionsMap.clear();
}
// Hostname-based
if ( hostnamesMap.size !== 0 ) {
const collectArgIndices = hn => {
let argsIndices = hostnamesMap.get(hn);
if ( argsIndices === undefined ) { return; }
if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
for ( const argsIndex of argsIndices ) {
if ( tonotdoIndices.includes(argsIndex) ) { continue; }
todoIndices.add(argsIndex);
}
};
for ( let i = 0; i < hnpartslen; i++ ) {
const hn = hnParts.slice(i).join('.');
collectArgIndices(hn);
}
collectArgIndices('*');
hostnamesMap.clear();
}
// Entity-based
if ( entitiesMap.size !== 0 ) {
const n = hnpartslen - 1;
for ( let i = 0; i < n; i++ ) {
for ( let j = n; j > i; j-- ) {
const en = hnParts.slice(i,j).join('.');
let argsIndices = entitiesMap.get(en);
if ( argsIndices === undefined ) { continue; }
if ( typeof argsIndices === 'number' ) { argsIndices = [ argsIndices ]; }
for ( const argsIndex of argsIndices ) {
if ( tonotdoIndices.includes(argsIndex) ) { continue; }
todoIndices.add(argsIndex);
}
}
}
entitiesMap.clear();
}
// Apply scriplets
for ( const i of todoIndices ) {
try { noFetchIf(...argsList[i]); }
catch(ex) {}
}
argsList.length = 0;
/******************************************************************************/
};
// End of code to inject
/******************************************************************************/
// Inject code
// https://bugzilla.mozilla.org/show_bug.cgi?id=1736575
// 'MAIN' world not yet supported in Firefox, so we inject the code into
// 'MAIN' ourself when environment in Firefox.
const targetWorld = 'MAIN';
// Not Firefox
if ( typeof wrappedJSObject !== 'object' || targetWorld === 'ISOLATED' ) {
return uBOL_noFetchIf();
}
// Firefox
{
const page = self.wrappedJSObject;
let script, url;
try {
page.uBOL_noFetchIf = cloneInto([
[ '(', uBOL_noFetchIf.toString(), ')();' ],
{ type: 'text/javascript; charset=utf-8' },
], self);
const blob = new page.Blob(...page.uBOL_noFetchIf);
url = page.URL.createObjectURL(blob);
const doc = page.document;
script = doc.createElement('script');
script.async = false;
script.src = url;
(doc.head || doc.documentElement || doc).append(script);
} catch (ex) {
console.error(ex);
}
if ( url ) {
if ( script ) { script.remove(); }
page.URL.revokeObjectURL(url);
}
delete page.uBOL_noFetchIf;
}
/******************************************************************************/
// End of local scope
})();
/******************************************************************************/
void 0;