mirror of
https://github.com/MercuryWorkshop/scramjet.git
synced 2025-05-13 22:40:01 -04:00
feat: switch to new css rewriter
This commit is contained in:
Percs
parent
257b700e25
commit
b9be6e8c7a
2 changed files with 155 additions and 178 deletions
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@ -1,64 +1,42 @@
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// This CSS rewriter uses code from Meteor
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// You can find the original source code at https://github.com/MeteorProxy/Meteor
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import { URLMeta, rewriteUrl, unrewriteUrl } from "./url";
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export function rewriteCss(css: string, meta: URLMeta) {
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const regex =
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/(@import\s+(?!url\())?\s*url\(\s*(['"]?)([^'")]+)\2\s*\)|@import\s+(['"])([^'"]+)\4/g;
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return css.replace(
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regex,
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(
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match,
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importStatement,
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urlQuote,
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urlContent,
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importQuote,
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importContent
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) => {
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const url = urlContent || importContent;
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const encodedUrl = rewriteUrl(url.trim(), meta);
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if (importStatement) {
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return `@import url(${urlQuote}${encodedUrl}${urlQuote})`;
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}
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if (importQuote) {
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return `@import ${importQuote}${encodedUrl}${importQuote}`;
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}
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return `url(${urlQuote}${encodedUrl}${urlQuote})`;
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}
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);
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handleCss("unrewrite", css, meta);
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}
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export function unrewriteCss(css: string) {
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const regex =
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/(@import\s+(?!url\())?\s*url\(\s*(['"]?)([^'")]+)\2\s*\)|@import\s+(['"])([^'"]+)\4/g;
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return css.replace(
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regex,
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(
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match,
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importStatement,
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urlQuote,
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urlContent,
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importQuote,
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importContent
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) => {
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const url = urlContent || importContent;
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const encodedUrl = unrewriteUrl(url.trim());
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if (importStatement) {
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return `@import url(${urlQuote}${encodedUrl}${urlQuote})`;
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}
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if (importQuote) {
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return `@import ${importQuote}${encodedUrl}${importQuote}`;
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}
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return `url(${urlQuote}${encodedUrl}${urlQuote})`;
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}
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);
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handleCss("rewrite", css);
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}
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function handleCss(type: "rewrite" | "unrewrite", css: string, meta?: URLMeta) {
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const urlRegex = /url\(['"]?(.+?)['"]?\)/gm;
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const Atruleregex =
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/@import\s+(url\s*?\(.{0,9999}?\)|['"].{0,9999}?['"]|.{0,9999}?)($|\s|;)/gm;
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css = new String(css).toString();
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css = css.replace(urlRegex, (match, url) => {
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const encodedUrl =
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type === "rewrite"
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? rewriteUrl(url.trim(), meta)
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: unrewriteUrl(url.trim());
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return match.replace(url, encodedUrl);
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});
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css = css.replace(Atruleregex, (_, importStatement) => {
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return importStatement.replace(
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/^(url\(['"]?|['"]|)(.+?)(['"]|['"]?\)|)$/gm,
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(match, firstQuote, url, endQuote) => {
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if (firstQuote.startsWith("url")) {
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return match;
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}
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const encodedUrl =
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type === "rewrite"
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? rewriteUrl(url.trim(), meta)
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: unrewriteUrl(url.trim());
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return `${firstQuote}${encodedUrl}${endQuote}`;
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}
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);
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});
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return css;
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}
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@ -12,138 +12,137 @@ export function errorTemplate(trace: string, fetchedURL: string) {
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`;
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return `<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Scramjet</title>
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<style>
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:root {
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--deep: #080602;
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--shallow: #181412;
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--beach: #f1e8e1;
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--shore: #b1a8a1;
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--accent: #ffa938;
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--font-sans: -apple-system, system-ui, BlinkMacSystemFont, sans-serif;
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--font-monospace: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
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}
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Scramjet</title>
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<style>
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:root {
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--deep: #080602;
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--shallow: #181412;
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--beach: #f1e8e1;
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--shore: #b1a8a1;
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--accent: #ffa938;
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--font-sans: -apple-system, system-ui, BlinkMacSystemFont, sans-serif;
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--font-monospace: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
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}
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*:not(div,p,span,ul,li,i,span) {
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background-color: var(--deep);
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color: var(--beach);
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font-family: var(--font-sans);
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}
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*:not(div,p,span,ul,li,i,span) {
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background-color: var(--deep);
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color: var(--beach);
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font-family: var(--font-sans);
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}
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textarea,
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button {
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background-color: var(--shallow);
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border-radius: 0.6em;
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padding: 0.6em;
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border: none;
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appearance: none;
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font-family: var(--font-sans);
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color: var(--beach);
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}
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textarea,
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button {
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background-color: var(--shallow);
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border-radius: 0.6em;
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padding: 0.6em;
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border: none;
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appearance: none;
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font-family: var(--font-sans);
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color: var(--beach);
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}
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button.primary {
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background-color: var(--accent);
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color: var(--deep);
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font-weight: bold;
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}
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button.primary {
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background-color: var(--accent);
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color: var(--deep);
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font-weight: bold;
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}
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textarea {
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resize: none;
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height: 20em;
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text-align: left;
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font-family: var(--font-monospace);
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}
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textarea {
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resize: none;
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height: 20em;
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text-align: left;
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font-family: var(--font-monospace);
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}
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body {
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width: 100vw;
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height: 100vh;
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justify-content: center;
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align-items: center;
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}
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body {
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width: 100vw;
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height: 100vh;
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justify-content: center;
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align-items: center;
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}
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body,
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html,
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#inner {
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display: flex;
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align-items: center;
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flex-direction: column;
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gap: 0.5em;
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overflow: hidden;
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}
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body,
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html,
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#inner {
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display: flex;
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align-items: center;
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flex-direction: column;
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gap: 0.5em;
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overflow: hidden;
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}
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#inner {
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z-index: 100;
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}
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#inner {
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z-index: 100;
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}
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#cover {
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position: absolute;
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width: 100%;
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height: 100%;
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background-color: color-mix(in srgb, var(--deep) 70%, transparent);
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z-index: 99;
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}
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#cover {
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position: absolute;
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width: 100%;
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height: 100%;
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background-color: color-mix(in srgb, var(--deep) 70%, transparent);
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z-index: 99;
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}
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#info {
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display: flex;
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flex-direction: row;
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align-items: flex-start;
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gap: 1em;
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}
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#info {
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display: flex;
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flex-direction: row;
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align-items: flex-start;
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gap: 1em;
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}
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#version-wrapper {
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width: 100%;
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text-align: center;
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position: absolute;
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bottom: 0.2rem;
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font-size: 0.8rem;
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color: var(--shore)!important;
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i {
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background-color: color-mix(in srgb, var(--deep), transparent 50%);
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border-radius: 9999px;
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padding: 0.2em 0.5em;
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}
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z-index: 101;
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}
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</style>
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</head>
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<body>
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<div id="cover"></div>
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<div id="inner">
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<h1 id="errorTitle">Uh oh!</h1>
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<p>There was an error loading <b id="fetchedURL"></b></p>
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<!-- <p id="errorMessage">Internal Server Error</p> -->
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<div id="info">
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<textarea id="errorTrace" cols="40" rows="10" readonly>
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</textarea>
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<div id="troubleshooting">
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<p>Try:</p>
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<ul>
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<li>Checking your internet connection</li>
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<li>Verifying you entered the correct address</li>
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<li>Clearing the site data</li>
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<li>Contacting <b id="hostname"></b>'s administrator</li>
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<li>Verify the server isn't censored</li>
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</ul>
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<p>If you're the administrator of <b id="hostname"></b>, try:</p>
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<ul>
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<li>Restarting your server</li>
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<li>Updating Scramjet</li>
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<li>Troubleshooting the error on the <a href="https://github.com/MercuryWorkshop/scramjet" target="_blank">GitHub repository</a></li>
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</ul>
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</div>
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</div>
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<br>
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<button id="reload" class="primary">Reload</button>
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</div>
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<p id="version-wrapper"><i>Scramjet v<span id="version"></span> (build <span id="build"></span>)</i></p>
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<script src="${"data:application/javascript," + encodeURIComponent(script)}"></script>
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</body>
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</html>
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#version-wrapper {
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width: 100%;
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text-align: center;
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position: absolute;
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bottom: 0.2rem;
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font-size: 0.8rem;
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color: var(--shore)!important;
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i {
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background-color: color-mix(in srgb, var(--deep), transparent 50%);
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border-radius: 9999px;
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padding: 0.2em 0.5em;
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}
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z-index: 101;
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}
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</style>
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</head>
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<body>
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<div id="cover"></div>
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<div id="inner">
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<h1 id="errorTitle">Uh oh!</h1>
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<p>There was an error loading <b id="fetchedURL"></b></p>
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<!-- <p id="errorMessage">Internal Server Error</p> -->
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<div id="info">
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<textarea id="errorTrace" cols="40" rows="10" readonly>
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</textarea>
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<div id="troubleshooting">
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<p>Try:</p>
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<ul>
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<li>Checking your internet connection</li>
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<li>Verifying you entered the correct address</li>
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<li>Clearing the site data</li>
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<li>Contacting <b id="hostname"></b>'s administrator</li>
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<li>Verify the server isn't censored</li>
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</ul>
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<p>If you're the administrator of <b id="hostname"></b>, try:</p>
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<ul>
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<li>Restarting your server</li>
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<li>Updating Scramjet</li>
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<li>Troubleshooting the error on the <a href="https://github.com/MercuryWorkshop/scramjet" target="_blank">GitHub repository</a></li>
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</ul>
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</div>
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</div>
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<br>
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<button id="reload" class="primary">Reload</button>
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</div>
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<p id="version-wrapper"><i>Scramjet v<span id="version"></span> (build <span id="build"></span>)</i></p>
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<script src="${"data:application/javascript," + encodeURIComponent(script)}"></script>
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</body>
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</html>
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`;
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}
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