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fix(markdown): expose source URL metadata #118

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fix(markdown): expose source URL metadata #118

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2 changes: 1 addition & 1 deletion worker/handlers/handleRead.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -253,7 +253,7 @@ export async function handleGet(request: Request, env: Env, ctx: ExecutionContex

// handle article (render as markdown)
if (role === "a") {
return new Response(shouldGetPasteContent ? makeMarkdown(await decodeMaybeStream(item.paste)) : null, {
return new Response(shouldGetPasteContent ? makeMarkdown(await decodeMaybeStream(item.paste), url.href) : null, {
headers: {
"Content-Type": `text/html;charset=UTF-8`,
...pasteCacheHeader(env),
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5 changes: 4 additions & 1 deletion worker/pages/markdown.ts
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Expand Up @@ -302,7 +302,7 @@ const mathInlineExt = {
},
}

export function makeMarkdown(content: string): string {
export function makeMarkdown(content: string, sourceUrl?: string): string {
const metadata: DocMetadata = { title: defaultTitle, description: "", toc: [] }
const slugger = new GithubSlugger()

Expand Down Expand Up @@ -352,6 +352,7 @@ export function makeMarkdown(content: string): string {
const tocHtml = renderToc(metadata.toc)
const hasToc = tocHtml.length > 0
const { jsFile, cssPaths } = getAssetPaths(manifest, "pages/render/markdown.ts")
const escapedSourceUrl = sourceUrl ? escapeHtml(sourceUrl) : ""

return `<!DOCTYPE html>
<html lang='en' class='light'>
Expand All @@ -360,6 +361,8 @@ export function makeMarkdown(content: string): string {
<meta name='viewport' content='width=device-width, initial-scale=1, shrink-to-fit=no'>
<title>${metadata.title}</title>
${metadata.description.length > 0 ? `<meta name='description' content='${metadata.description}'>` : ""}
${escapedSourceUrl ? `<link rel='canonical' href='${escapedSourceUrl}'>` : ""}
${escapedSourceUrl ? `<meta property='og:url' content='${escapedSourceUrl}'>` : ""}
<link rel='stylesheet' href='https://pages.github.com/assets/css/style.css'>
${renderCssLinks(cssPaths)}
<style>${sidebarStyles}</style>
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