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Correctly omit @namespace-only code in popup + speed up

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tophf 2017-03-28 11:24:31 +03:00
parent 7d9a6b5a3f
commit 1c2c14d231
1 changed files with 56 additions and 50 deletions
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106
storage.js
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@ -24,6 +24,12 @@ function getDatabase(ready, error) {
} }
const RX_NAMESPACE = new RegExp([/[\s\r\n]*/,
/(@namespace[\s\r\n]+(?:[^\s\r\n]+[\s\r\n]+)?url\(http:\/\/.*?\);)/,
/[\s\r\n]*/].map(rx => rx.source).join(''), 'g');
const RX_CSS_COMMENTS = /\/\*[\s\S]*?\*\//g;
// Let manage/popup/edit reuse background page variables // Let manage/popup/edit reuse background page variables
// Note, only 'var'-declared variables are visible from another extension page // Note, only 'var'-declared variables are visible from another extension page
// eslint-disable-next-line no-var // eslint-disable-next-line no-var
@ -427,70 +433,70 @@ function getType(o) {
return 'undefined'; return 'undefined';
} }
const namespacePattern = /^\s*(@namespace[^;]+;\s*)+$/;
function getApplicableSections(style, url) { function getApplicableSections(style, url) {
const sections = []; const sections = [];
checkingSections:
for (const section of style.sections) { for (const section of style.sections) {
if (sectionAppliesToUrl(section, url)) { // only http, https, file, ftp, and chrome-extension://OWN_EXTENSION_ID allowed
if (!url.startsWith('http')
&& !url.startsWith('ftp')
&& !url.startsWith('file')
&& !url.startsWith(OWN_ORIGIN)) {
continue checkingSections;
}
if (section.urls.length == 0
&& section.domains.length == 0
&& section.urlPrefixes.length == 0
&& section.regexps.length == 0) {
sections.push(section); sections.push(section);
continue checkingSections;
} }
} if (section.urls.indexOf(url) != -1) {
// ignore if it's just namespaces sections.push(section);
if (sections.length == 1 && namespacePattern.test(sections[0].code)) { continue checkingSections;
return [];
}
return sections;
}
function sectionAppliesToUrl(section, url) {
// only http, https, file, ftp, and chrome-extension://OWN_EXTENSION_ID allowed
if (!url.startsWith('http')
&& !url.startsWith('ftp')
&& !url.startsWith('file')
&& !url.startsWith(OWN_ORIGIN)) {
return false;
}
if (section.urls.length == 0
&& section.domains.length == 0
&& section.urlPrefixes.length == 0
&& section.regexps.length == 0) {
return true;
}
if (section.urls.indexOf(url) != -1) {
return true;
}
for (const urlPrefix of section.urlPrefixes) {
if (url.startsWith(urlPrefix)) {
return true;
} }
} for (const urlPrefix of section.urlPrefixes) {
const urlDomains = cachedStyles.urlDomains.get(url) || getDomains(url); if (url.startsWith(urlPrefix)) {
for (const domain of urlDomains) { sections.push(section);
if (section.domains.indexOf(domain) != -1) { continue checkingSections;
return true; }
} }
} const urlDomains = cachedStyles.urlDomains.get(url) || getDomains(url);
for (const regexp of section.regexps) { for (const domain of urlDomains) {
let rx = cachedStyles.regexps.get(regexp); if (section.domains.indexOf(domain) != -1) {
if (rx == false) { sections.push(section);
// bad regexp continue checkingSections;
continue; }
} }
if (!rx) { for (const regexp of section.regexps) {
rx = tryRegExp('^(?:' + regexp + ')$'); let rx = cachedStyles.regexps.get(regexp);
cachedStyles.regexps.set(regexp, rx || false); if (rx == false) {
if (!rx) {
// bad regexp // bad regexp
continue; continue;
} }
} if (!rx) {
if (rx.test(url)) { rx = tryRegExp('^(?:' + regexp + ')$');
return true; cachedStyles.regexps.set(regexp, rx || false);
if (!rx) {
// bad regexp
continue;
}
}
if (rx.test(url)) {
sections.push(section);
continue checkingSections;
}
} }
} }
return false; // ignore @namespace-only results
if (sections.length == 1
&& sections[0].code
&& sections[0].code.indexOf('@namespace') >= 0
&& sections[0].code.replace(RX_CSS_COMMENTS, '').replace(RX_NAMESPACE, '').trim() == '') {
return [];
}
return sections;
} }