Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | 1x 1x 1x 1x 39x 39x 1x 33x 33x 21x 33x 33x 33x 33x 21x 12x 3x 3x 3x 3x 3x 3x 3x 3x 16x 16x 16x 1x 1x 16x 18x 2x 18x 18x 18x 17x 17x 1x 6x 6x 56x 48x 8x 8x 8x 6x 6x 6x 2x 2x 2x 6x 9x 9x 9x 1x 9x 3x 3x 3x 3x 9x 1x 1x 1x 9x 2x 2x 2x 2x 9x 2x 2x 2x 2x 2x 9x 1x 1x 1x 1x 9x | const cheerio = require('cheerio');
const csstree = require('css-tree');
// const { URL } = require('url');
const Generator = require('./dom-link-renamer');
// let generator;
const CSS_REPLACE_RE = /url\(['"]?(?!["']?data)(.+?)['"]?\)/g;
function makeUrl(url, baseUrl) {
Iif (baseUrl && (baseUrl.indexOf('blob:') === 0 || url.indexOf('blob:') === 0)) {
return url;
}
return new URL(url, baseUrl).toString();
}
module.exports = {
html(domBuffer, resourcesMap, baseUrl) {
const gotString = typeof domBuffer === 'string';
if (gotString) {
domBuffer = Buffer.from(domBuffer);
}
// if (generator) {
// generator.reset(domBuffer, resourcesMap, baseUrl);
// } else {
// generator = new Generator(domBuffer, resourcesMap, baseUrl);
// generator.cssProcessor = module.exports.css;
// }
// new generator instead of resusing because of function's recursive calls
const generator = new Generator(domBuffer, resourcesMap, baseUrl);
generator.cssProcessor = module.exports.css;
generator.parse();
if (gotString) {
return generator.result().toString();
}
return generator.result().slice();
},
svg(svgString, resourcesMap, baseUrl) {
const $ = cheerio.load(svgString, { xmlMode: true });
$('[href],[xlink\\:href]').each((i, el) => {
el = $(el);
const link = makeUrl(el.attr('href') || el.attr('xlink:href'), baseUrl);
const mapped = resourcesMap.get(link) || link;
el.removeAttr('xlink:href');
el.attr('href', mapped);
});
return $.html();
},
css(cssString, resourcesMap, baseUrl, inAttribute = false) {
let start = "url('";
let end = "')";
if (inAttribute) {
start = 'url("';
end = '")';
}
return cssString.toString().replace(CSS_REPLACE_RE, (whole, match) => {
if (match.charAt(0) === '/' && match.charAt(1) === '/') { // protocol agnostic URL
match = `http:${match}`;
}
Iif (match.charAt(0) === '&') {
if (match.indexOf('"') === 0 && match.indexOf('"', 1) !== -1) {
match = match.slice(6, match.length - 6);
}
}
try {
const link = makeUrl(match, baseUrl);
const mapped = resourcesMap.get(link) || link;
/* eslint-disable prefer-template */ // hot point
return start + mapped + end;
} catch (e) {
return whole;
}
});
},
cssWithAst(cssString, resourcesMap, baseUrl) {
// currently 2x times slower than the RE
const ast = csstree.parse(cssString, { parseRulePrelude: false });
csstree.walk(ast, function walker(node) {
if (this.declaration === null || node.type !== 'Url') {
return;
}
const { value } = node;
try {
if (value.type === 'Raw') {
const link = makeUrl(value.value, baseUrl);
const mapped = resourcesMap.get(link) || link;
value.value = `'${mapped}'`;
} else {
const link = makeUrl(value.value.substr(1, value.value.length - 2), baseUrl);
const mapped = resourcesMap.get(link) || link;
value.value = `'${mapped}'`;
}
} catch (e) {
// ignore unable to map
}
});
return csstree.generate(ast);
},
htmlWithCheerio(domBuffer, resourcesMap, baseUrl) {
// slower and currently unused with Cheerio which is way more allocation happy
const $ = cheerio.load(domBuffer.toString(), {
_useHtmlParser2: true, // cheerio 1 uses parse5 by default which is half the speed
lowerCaseTags: false,
});
const pageBase = $('base[href]').attr('href');
if (pageBase) {
baseUrl = makeUrl(pageBase, baseUrl);
}
// img, picture, audio, video, script, source, iframe
$('[src]').each((i, el) => {
el = $(el);
const link = makeUrl(el.attr('src'), baseUrl);
const mapped = resourcesMap.get(link) || link;
el.attr('src', mapped);
});
$('[srcset]').each((i, el) => {
el = $(el);
const sources = el.attr('srcset').split(' ');
el.attr('srcset', sources.map((src) => makeUrl(src, baseUrl)).map((m) => resourcesMap.get(m) || m));
});
// css imports and link rel prefetch/prerender
$('link[href]').each((i, el) => {
el = $(el);
const link = makeUrl(el.attr('href'), baseUrl);
const mapped = resourcesMap.get(link) || link;
el.attr('href', mapped);
});
$('svg').find('[href],[xlink\\:href]').each((i, el) => {
el = $(el);
const link = makeUrl(el.attr('href') || el.attr('xlink:href'), baseUrl);
const mapped = resourcesMap.get(link) || link;
el.removeAttr('xlink:href');
el.attr('href', mapped);
});
// old and deprecated stuff, skipped
// $('meta[http-equiv=refresh]').each((i, el) => {
// el = $(el);
// const re = /(\d)+; ?URL='?([^']*)'?/gi;
// const [, seconds, url] = re.exec(el.attr('content'));
// const link = new URL(url, baseUrl).toString();
// const mapped = resourcesMap.get(link) || link;
// el.attr('content', `${seconds}; url=${mapped}`);
// });
// $('object[data]').each((i, el) => {
// el = $(el);
// const link = new URL(el.attr('data'), baseUrl).toString();
// const mapped = resourcesMap.get(link) || link;
// el.attr('data', mapped);
// });
$('applet[code]').each((i, el) => {
el = $(el);
const link = makeUrl(el.attr('code'), baseUrl);
const mapped = resourcesMap.get(link) || link;
el.attr('code', mapped);
});
return $.html();
},
};
|