Imrpove `no-xhr-if` scriptlet · gorhill/uBlock@bf591d9 (original) (raw)

`@@ -1935,21 +1935,55 @@ builtinScriptlets.push({

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`});

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`function noXhrIf(

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`propsToMatch = '',

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randomize = ''

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directive = ''

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`) {

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`if ( typeof propsToMatch !== 'string' ) { return; }

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`const xhrInstances = new WeakMap();

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`const propNeedles = parsePropertiesToMatch(propsToMatch, 'url');

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`const log = propNeedles.size === 0 ? console.log.bind(console) : undefined;

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const warOrigin = scriptletGlobals.get('warOrigin');

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const generateRandomString = len => {

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let s = '';

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do { s += Math.random().toString(36).slice(2); }

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while ( s.length < 10 );

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return s.slice(0, len);

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};

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const generateContent = async directive => {

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if ( directive === 'true' ) {

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return generateRandomString(10);

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}

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if ( directive.startsWith('war:') ) {

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if ( warOrigin === undefined ) { return ''; }

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const warName = directive.slice(4);

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const fullpath = [ warOrigin, '/', warName ];

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const warSecret = scriptletGlobals.get('warSecret') || '';

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if ( warSecret !== '' ) {

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fullpath.push('?secret=', warSecret);

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}

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return new Promise(resolve => {

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const warXHR = new XMLHttpRequest();

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warXHR.responseType = 'text';

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warXHR.onloadend = ev => {

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resolve(ev.target.responseText || '');

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};

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warXHR.open('GET', fullpath.join(''));

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warXHR.send();

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});

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}

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return '';

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};

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`self.XMLHttpRequest = class extends self.XMLHttpRequest {

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`open(method, url, ...args) {

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`if ( log !== undefined ) {

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`` log(uBO: xhr.open(${method}, <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mrow><mi>u</mi><mi>r</mi><mi>l</mi></mrow><mo separator="true">,</mo></mrow><annotation encoding="application/x-tex">{url}, </annotation></semantics></math>url,{args.join(', ')}));

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} else {

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const haystack = { method, url };

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if ( matchObjectProperties(propNeedles, haystack) ) {

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xhrInstances.set(this, haystack);

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}

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return super.open(method, url, ...args);

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}

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if ( warOrigin !== undefined && url.startsWith(warOrigin) ) {

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return super.open(method, url, ...args);

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}

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const haystack = { method, url };

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if ( matchObjectProperties(propNeedles, haystack) ) {

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xhrInstances.set(this, haystack);

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`return super.open(method, url, ...args);

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`@@ -1958,50 +1992,66 @@ function noXhrIf(

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`if ( haystack === undefined ) {

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`return super.send(...args);

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Object.defineProperties(this, {

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readyState: { value: 4 },

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responseURL: { value: haystack.url },

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status: { value: 200 },

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statusText: { value: 'OK' },

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let promise = Promise.resolve({

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xhr: this,

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directive,

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props: {

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readyState: { value: 4 },

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response: { value: '' },

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responseText: { value: '' },

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responseXML: { value: null },

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responseURL: { value: haystack.url },

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status: { value: 200 },

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statusText: { value: 'OK' },

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`});

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let response = '';

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let responseText = '';

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let responseXML = null;

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`switch ( this.responseType ) {

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`case 'arraybuffer':

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response = new ArrayBuffer(0);

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promise = promise.then(details => {

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details.props.response.value = new ArrayBuffer(0);

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return details;

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});

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`break;

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`case 'blob':

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response = new Blob([]);

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promise = promise.then(details => {

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details.props.response.value = new Blob([]);

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return details;

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});

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`break;

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`case 'document': {

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const parser = new DOMParser();

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const doc = parser.parseFromString('', 'text/html');

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response = doc;

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responseXML = doc;

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promise = promise.then(details => {

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const parser = new DOMParser();

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const doc = parser.parseFromString('', 'text/html');

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details.props.response.value = doc;

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details.props.responseXML.value = doc;

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return details;

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});

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`break;

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`case 'json':

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response = {};

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responseText = '{}';

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promise = promise.then(details => {

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details.props.response.value = {};

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details.props.responseText.value = '{}';

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return details;

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});

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`break;

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`default:

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if ( randomize !== 'true' ) { break; }

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do {

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response += Math.random().toString(36).slice(-2);

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} while ( response.length < 10 );

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response = response.slice(-10);

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responseText = response;

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if ( directive === '' ) { break; }

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promise = promise.then(details => {

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return generateContent(details.directive).then(text => {

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details.props.response.value = text;

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details.props.responseText.value = text;

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return details;

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});

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});

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`break;

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Object.defineProperties(this, {

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response: { value: response },

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responseText: { value: responseText },

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responseXML: { value: responseXML },

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promise.then(details => {

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Object.defineProperties(details.xhr, details.props);

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details.xhr.dispatchEvent(new Event('readystatechange'));

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details.xhr.dispatchEvent(new Event('load'));

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details.xhr.dispatchEvent(new Event('loadend'));

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`});

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this.dispatchEvent(new Event('readystatechange'));

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this.dispatchEvent(new Event('load'));

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this.dispatchEvent(new Event('loadend'));

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`};

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Imrpove no-xhr-if scriptlet · gorhill/uBlock@bf591d9 (original) (raw)

Imrpove `no-xhr-if` scriptlet · gorhill/uBlock@bf591d9 (original) (raw)