mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-07 03:12:33 +01:00
376 lines
12 KiB
JavaScript
376 lines
12 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';
|
|
|
|
/******************************************************************************/
|
|
|
|
import { browser, dnr, i18n } from './ext.js';
|
|
import { fetchJSON } from './fetch.js';
|
|
|
|
/******************************************************************************/
|
|
|
|
const RULE_REALM_SIZE = 1000000;
|
|
const REGEXES_REALM_START = 1000000;
|
|
const REGEXES_REALM_END = REGEXES_REALM_START + RULE_REALM_SIZE;
|
|
const REMOVEPARAMS_REALM_START = 2000000;
|
|
const REMOVEPARAMS_REALM_END = REMOVEPARAMS_REALM_START + RULE_REALM_SIZE;
|
|
const TRUSTED_DIRECTIVE_BASE_RULE_ID = 8000000;
|
|
const BLOCKING_MODES_RULE_ID = TRUSTED_DIRECTIVE_BASE_RULE_ID + 1;
|
|
const CURRENT_CONFIG_BASE_RULE_ID = 9000000;
|
|
|
|
/******************************************************************************/
|
|
|
|
let rulesetDetailsPromise;
|
|
|
|
function getRulesetDetails() {
|
|
if ( rulesetDetailsPromise !== undefined ) {
|
|
return rulesetDetailsPromise;
|
|
}
|
|
rulesetDetailsPromise = fetchJSON('/rulesets/ruleset-details').then(entries => {
|
|
const map = new Map(
|
|
entries.map(entry => [ entry.id, entry ])
|
|
);
|
|
return map;
|
|
});
|
|
return rulesetDetailsPromise;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
let dynamicRuleMapPromise;
|
|
|
|
function getDynamicRules() {
|
|
if ( dynamicRuleMapPromise !== undefined ) {
|
|
return dynamicRuleMapPromise;
|
|
}
|
|
dynamicRuleMapPromise = dnr.getDynamicRules().then(rules => {
|
|
const map = new Map(
|
|
rules.map(rule => [ rule.id, rule ])
|
|
);
|
|
console.info(`Dynamic rule count: ${map.size}`);
|
|
console.info(`Available dynamic rule count: ${dnr.MAX_NUMBER_OF_DYNAMIC_AND_SESSION_RULES - map.size}`);
|
|
return map;
|
|
});
|
|
return dynamicRuleMapPromise;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function updateRegexRules() {
|
|
const [
|
|
rulesetDetails,
|
|
dynamicRules
|
|
] = await Promise.all([
|
|
getEnabledRulesetsDetails(),
|
|
dnr.getDynamicRules(),
|
|
]);
|
|
|
|
// Avoid testing already tested regexes
|
|
const validRegexSet = new Set(
|
|
dynamicRules.filter(rule =>
|
|
rule.condition?.regexFilter && true || false
|
|
).map(rule =>
|
|
rule.condition.regexFilter
|
|
)
|
|
);
|
|
const allRules = [];
|
|
const toCheck = [];
|
|
|
|
// Fetch regexes for all enabled rulesets
|
|
const toFetch = [];
|
|
for ( const details of rulesetDetails ) {
|
|
if ( details.rules.regexes === 0 ) { continue; }
|
|
toFetch.push(fetchJSON(`/rulesets/${details.id}.regexes`));
|
|
}
|
|
const regexRulesets = await Promise.all(toFetch);
|
|
|
|
// Validate fetched regexes
|
|
let regexRuleId = REGEXES_REALM_START;
|
|
for ( const rules of regexRulesets ) {
|
|
if ( Array.isArray(rules) === false ) { continue; }
|
|
for ( const rule of rules ) {
|
|
rule.id = regexRuleId++;
|
|
const {
|
|
regexFilter: regex,
|
|
isUrlFilterCaseSensitive: isCaseSensitive
|
|
} = rule.condition;
|
|
allRules.push(rule);
|
|
toCheck.push(
|
|
validRegexSet.has(regex)
|
|
? { isSupported: true }
|
|
: dnr.isRegexSupported({ regex, isCaseSensitive })
|
|
);
|
|
}
|
|
}
|
|
|
|
// Collate results
|
|
const results = await Promise.all(toCheck);
|
|
const newRules = [];
|
|
for ( let i = 0; i < allRules.length; i++ ) {
|
|
const rule = allRules[i];
|
|
const result = results[i];
|
|
if ( result instanceof Object && result.isSupported ) {
|
|
newRules.push(rule);
|
|
} else {
|
|
//console.info(`${result.reason}: ${rule.condition.regexFilter}`);
|
|
}
|
|
}
|
|
console.info(
|
|
`Rejected regex filters: ${allRules.length-newRules.length} out of ${allRules.length}`
|
|
);
|
|
|
|
// Add validated regex rules to dynamic ruleset without affecting rules
|
|
// outside regex rules realm.
|
|
const dynamicRuleMap = await getDynamicRules();
|
|
const newRuleMap = new Map(newRules.map(rule => [ rule.id, rule ]));
|
|
const addRules = [];
|
|
const removeRuleIds = [];
|
|
|
|
for ( const oldRule of dynamicRuleMap.values() ) {
|
|
if ( oldRule.id < REGEXES_REALM_START ) { continue; }
|
|
if ( oldRule.id >= REGEXES_REALM_END ) { continue; }
|
|
const newRule = newRuleMap.get(oldRule.id);
|
|
if ( newRule === undefined ) {
|
|
removeRuleIds.push(oldRule.id);
|
|
dynamicRuleMap.delete(oldRule.id);
|
|
} else if ( JSON.stringify(oldRule) !== JSON.stringify(newRule) ) {
|
|
removeRuleIds.push(oldRule.id);
|
|
addRules.push(newRule);
|
|
dynamicRuleMap.set(oldRule.id, newRule);
|
|
}
|
|
}
|
|
|
|
for ( const newRule of newRuleMap.values() ) {
|
|
if ( dynamicRuleMap.has(newRule.id) ) { continue; }
|
|
addRules.push(newRule);
|
|
dynamicRuleMap.set(newRule.id, newRule);
|
|
}
|
|
|
|
if ( addRules.length === 0 && removeRuleIds.length === 0 ) { return; }
|
|
|
|
if ( removeRuleIds.length !== 0 ) {
|
|
console.info(`Remove ${removeRuleIds.length} DNR regex rules`);
|
|
}
|
|
if ( addRules.length !== 0 ) {
|
|
console.info(`Add ${addRules.length} DNR regex rules`);
|
|
}
|
|
|
|
return dnr.updateDynamicRules({ addRules, removeRuleIds });
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function updateRemoveparamRules() {
|
|
const [
|
|
hasOmnipotence,
|
|
rulesetDetails,
|
|
dynamicRuleMap,
|
|
] = await Promise.all([
|
|
browser.permissions.contains({ origins: [ '<all_urls>' ] }),
|
|
getEnabledRulesetsDetails(),
|
|
getDynamicRules(),
|
|
]);
|
|
|
|
// Fetch removeparam rules for all enabled rulesets
|
|
const toFetch = [];
|
|
for ( const details of rulesetDetails ) {
|
|
if ( details.rules.removeparams === 0 ) { continue; }
|
|
toFetch.push(fetchJSON(`/rulesets/${details.id}.removeparams`));
|
|
}
|
|
const removeparamRulesets = await Promise.all(toFetch);
|
|
|
|
// Removeparam rules can only be enforced with omnipotence
|
|
const newRules = [];
|
|
if ( hasOmnipotence ) {
|
|
let removeparamRuleId = REMOVEPARAMS_REALM_START;
|
|
for ( const rules of removeparamRulesets ) {
|
|
if ( Array.isArray(rules) === false ) { continue; }
|
|
for ( const rule of rules ) {
|
|
rule.id = removeparamRuleId++;
|
|
newRules.push(rule);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add removeparam rules to dynamic ruleset without affecting rules
|
|
// outside removeparam rules realm.
|
|
const newRuleMap = new Map(newRules.map(rule => [ rule.id, rule ]));
|
|
const addRules = [];
|
|
const removeRuleIds = [];
|
|
|
|
for ( const oldRule of dynamicRuleMap.values() ) {
|
|
if ( oldRule.id < REMOVEPARAMS_REALM_START ) { continue; }
|
|
if ( oldRule.id >= REMOVEPARAMS_REALM_END ) { continue; }
|
|
const newRule = newRuleMap.get(oldRule.id);
|
|
if ( newRule === undefined ) {
|
|
removeRuleIds.push(oldRule.id);
|
|
dynamicRuleMap.delete(oldRule.id);
|
|
} else if ( JSON.stringify(oldRule) !== JSON.stringify(newRule) ) {
|
|
removeRuleIds.push(oldRule.id);
|
|
addRules.push(newRule);
|
|
dynamicRuleMap.set(oldRule.id, newRule);
|
|
}
|
|
}
|
|
|
|
for ( const newRule of newRuleMap.values() ) {
|
|
if ( dynamicRuleMap.has(newRule.id) ) { continue; }
|
|
addRules.push(newRule);
|
|
dynamicRuleMap.set(newRule.id, newRule);
|
|
}
|
|
|
|
if ( addRules.length === 0 && removeRuleIds.length === 0 ) { return; }
|
|
|
|
if ( removeRuleIds.length !== 0 ) {
|
|
console.info(`Remove ${removeRuleIds.length} DNR removeparam rules`);
|
|
}
|
|
if ( addRules.length !== 0 ) {
|
|
console.info(`Add ${addRules.length} DNR removeparam rules`);
|
|
}
|
|
|
|
return dnr.updateDynamicRules({ addRules, removeRuleIds });
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function updateDynamicRules() {
|
|
return Promise.all([
|
|
updateRegexRules(),
|
|
updateRemoveparamRules(),
|
|
]);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function defaultRulesetsFromLanguage() {
|
|
const out = [ 'default' ];
|
|
|
|
const dropCountry = lang => {
|
|
const pos = lang.indexOf('-');
|
|
if ( pos === -1 ) { return lang; }
|
|
return lang.slice(0, pos);
|
|
};
|
|
|
|
const langSet = new Set();
|
|
|
|
await i18n.getAcceptLanguages().then(langs => {
|
|
for ( const lang of langs.map(dropCountry) ) {
|
|
langSet.add(lang);
|
|
}
|
|
});
|
|
langSet.add(dropCountry(i18n.getUILanguage()));
|
|
|
|
const reTargetLang = new RegExp(
|
|
`\\b(${Array.from(langSet).join('|')})\\b`
|
|
);
|
|
|
|
const rulesetDetails = await getRulesetDetails();
|
|
for ( const [ id, details ] of rulesetDetails ) {
|
|
if ( typeof details.lang !== 'string' ) { continue; }
|
|
if ( reTargetLang.test(details.lang) === false ) { continue; }
|
|
out.push(id);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function enableRulesets(ids) {
|
|
const afterIds = new Set(ids);
|
|
const beforeIds = new Set(await dnr.getEnabledRulesets());
|
|
const enableRulesetSet = new Set();
|
|
const disableRulesetSet = new Set();
|
|
for ( const id of afterIds ) {
|
|
if ( beforeIds.has(id) ) { continue; }
|
|
enableRulesetSet.add(id);
|
|
}
|
|
for ( const id of beforeIds ) {
|
|
if ( afterIds.has(id) ) { continue; }
|
|
disableRulesetSet.add(id);
|
|
}
|
|
|
|
if ( enableRulesetSet.size === 0 && disableRulesetSet.size === 0 ) {
|
|
return;
|
|
}
|
|
|
|
// Be sure the rulesets to enable/disable do exist in the current version,
|
|
// otherwise the API throws.
|
|
const rulesetDetails = await getRulesetDetails();
|
|
for ( const id of enableRulesetSet ) {
|
|
if ( rulesetDetails.has(id) ) { continue; }
|
|
enableRulesetSet.delete(id);
|
|
}
|
|
for ( const id of disableRulesetSet ) {
|
|
if ( rulesetDetails.has(id) ) { continue; }
|
|
disableRulesetSet.delete(id);
|
|
}
|
|
const enableRulesetIds = Array.from(enableRulesetSet);
|
|
const disableRulesetIds = Array.from(disableRulesetSet);
|
|
|
|
if ( enableRulesetIds.length !== 0 ) {
|
|
console.info(`Enable rulesets: ${enableRulesetIds}`);
|
|
}
|
|
if ( disableRulesetIds.length !== 0 ) {
|
|
console.info(`Disable ruleset: ${disableRulesetIds}`);
|
|
}
|
|
await dnr.updateEnabledRulesets({ enableRulesetIds, disableRulesetIds });
|
|
|
|
return Promise.all([
|
|
updateRegexRules(),
|
|
updateRemoveparamRules(),
|
|
]);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
async function getEnabledRulesetsDetails() {
|
|
const [
|
|
ids,
|
|
rulesetDetails,
|
|
] = await Promise.all([
|
|
dnr.getEnabledRulesets(),
|
|
getRulesetDetails(),
|
|
]);
|
|
const out = [];
|
|
for ( const id of ids ) {
|
|
const ruleset = rulesetDetails.get(id);
|
|
if ( ruleset === undefined ) { continue; }
|
|
out.push(ruleset);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
export {
|
|
BLOCKING_MODES_RULE_ID,
|
|
CURRENT_CONFIG_BASE_RULE_ID,
|
|
TRUSTED_DIRECTIVE_BASE_RULE_ID,
|
|
getRulesetDetails,
|
|
getDynamicRules,
|
|
enableRulesets,
|
|
defaultRulesetsFromLanguage,
|
|
getEnabledRulesetsDetails,
|
|
updateDynamicRules,
|
|
};
|