378 lines
8.7 KiB
TypeScript
378 lines
8.7 KiB
TypeScript
// Detects if HTML contains custom patterns that indicate it was written in the HTML editor
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// rather than the visual editor. Custom HTML should render as-is without prose wrapper.
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export const detectCustomHtmlPatterns = (html: string): boolean => {
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if (!html || html.trim() === '') return false;
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const hasInlineStyles = /<[^>]+style\s*=\s*["'][^"']*["']/i.test(html);
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const classMatches = html.matchAll(/class\s*=\s*["']([^"']*)["']/gi);
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let hasCustomClasses = false;
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for (const match of classMatches) {
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const classValue = match[1];
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if (!classValue) continue;
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const classes = classValue.split(/\s+/).filter(c => c.length > 0);
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const allowedPrefixes = [
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'prose',
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'variable-',
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'email-image',
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'ProseMirror',
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'resizable-image',
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'selected',
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'resize-handle',
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];
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const hasDisallowedClass = classes.some(cls => !allowedPrefixes.some(prefix => cls.startsWith(prefix)));
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if (hasDisallowedClass) {
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hasCustomClasses = true;
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break;
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}
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}
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const hasCustomAttributes = /<[^>]+(?:data-|aria-|role=|id=)/i.test(html);
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const hasComplexTables = /<table[^>]*>[\s\S]*?<table/i.test(html);
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const hasCustomElements = /<(?:div|span|section|article|header|footer|nav|aside)[^>]*>/i.test(html);
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const hasMediaQueries = /@media/i.test(html);
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const hasStyleTags = /<style[^>]*>/i.test(html);
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return (
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hasInlineStyles ||
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hasCustomClasses ||
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hasCustomAttributes ||
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hasComplexTables ||
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hasCustomElements ||
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hasMediaQueries ||
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hasStyleTags
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);
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};
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export const wrapEmailWithStyles = (htmlBody: string): string => {
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if (detectCustomHtmlPatterns(htmlBody)) {
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return htmlBody;
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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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<meta name="viewport" content="width=device-width, initial-scale=1">
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<style>
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/* Base reset */
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* { box-sizing: border-box; }
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body {
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margin: 0;
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padding: 16px;
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font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
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line-height: 1.5;
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color: #111827;
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}
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/* Tailwind Typography (prose) base styles */
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.prose {
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color: #374151;
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max-width: 600px;
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}
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.prose [class~="lead"] {
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color: #4b5563;
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font-size: 1.25em;
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line-height: 1.6;
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margin-top: 1.2em;
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margin-bottom: 1.2em;
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}
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.prose a {
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color: #3b82f6;
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text-decoration: underline;
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font-weight: 500;
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}
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.prose strong {
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color: #111827;
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font-weight: 600;
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}
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.prose ol, .prose ul {
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margin-top: 1.25em;
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margin-bottom: 1.25em;
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padding-left: 1.625em;
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}
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.prose li {
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margin-top: 0.5em;
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margin-bottom: 0.5em;
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}
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.prose ol > li {
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padding-left: 0.375em;
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}
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.prose ul > li {
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padding-left: 0.375em;
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}
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.prose > ul > li p {
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margin-top: 0.75em;
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margin-bottom: 0.75em;
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}
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.prose > ul > li > *:first-child {
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margin-top: 1.25em;
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}
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.prose > ul > li > *:last-child {
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margin-bottom: 1.25em;
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}
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.prose > ol > li > *:first-child {
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margin-top: 1.25em;
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}
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.prose > ol > li > *:last-child {
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margin-bottom: 1.25em;
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}
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.prose ul ul, .prose ul ol, .prose ol ul, .prose ol ol {
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margin-top: 0.75em;
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margin-bottom: 0.75em;
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}
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.prose hr {
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border: none;
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border-top: 1px solid #e5e7eb;
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margin-top: 3em;
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margin-bottom: 3em;
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}
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.prose blockquote {
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font-weight: 500;
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font-style: italic;
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color: #111827;
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border-left-width: 0.25rem;
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border-left-color: #e5e7eb;
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quotes: "\\201C""\\201D""\\2018""\\2019";
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margin-top: 1.6em;
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margin-bottom: 1.6em;
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padding-left: 1em;
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}
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.prose h1 {
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color: #111827;
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font-weight: 800;
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font-size: 2.25em;
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margin-top: 0;
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margin-bottom: 0.8888889em;
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line-height: 1.1111111;
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}
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.prose h2 {
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color: #111827;
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font-weight: 700;
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font-size: 1.5em;
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margin-top: 2em;
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margin-bottom: 1em;
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line-height: 1.3333333;
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}
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.prose h3 {
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color: #111827;
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font-weight: 600;
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font-size: 1.25em;
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margin-top: 1.6em;
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margin-bottom: 0.6em;
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line-height: 1.6;
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}
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.prose h4 {
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color: #111827;
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font-weight: 600;
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margin-top: 1.5em;
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margin-bottom: 0.5em;
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line-height: 1.5;
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}
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.prose img {
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margin-top: 2em;
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margin-bottom: 2em;
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}
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.prose figure {
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margin-top: 2em;
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margin-bottom: 2em;
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}
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.prose figure > * {
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margin-top: 0;
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margin-bottom: 0;
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}
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.prose code {
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color: #111827;
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font-weight: 600;
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font-size: 0.875em;
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}
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.prose code::before {
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content: "\`";
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}
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.prose code::after {
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content: "\`";
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}
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.prose pre {
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color: #e5e7eb;
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background-color: #1f2937;
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overflow-x: auto;
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font-size: 0.875em;
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line-height: 1.7142857;
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margin-top: 1.7142857em;
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margin-bottom: 1.7142857em;
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border-radius: 0.375rem;
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padding-top: 0.8571429em;
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padding-right: 1.1428571em;
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padding-bottom: 0.8571429em;
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padding-left: 1.1428571em;
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}
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.prose pre code {
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background-color: transparent;
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border-width: 0;
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border-radius: 0;
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padding: 0;
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font-weight: 400;
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color: inherit;
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font-size: inherit;
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font-family: inherit;
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line-height: inherit;
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}
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.prose pre code::before {
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content: none;
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}
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.prose pre code::after {
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content: none;
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}
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.prose table {
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width: 100%;
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table-layout: auto;
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text-align: left;
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margin-top: 2em;
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margin-bottom: 2em;
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font-size: 0.875em;
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line-height: 1.7142857;
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border-collapse: collapse;
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}
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.prose thead {
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border-bottom-width: 1px;
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border-bottom-color: #d1d5db;
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}
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.prose thead th {
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color: #111827;
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font-weight: 600;
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vertical-align: bottom;
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padding-right: 0.5714286em;
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padding-bottom: 0.5714286em;
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padding-left: 0.5714286em;
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}
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.prose tbody tr {
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border-bottom-width: 1px;
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border-bottom-color: #e5e7eb;
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}
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.prose tbody tr:last-child {
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border-bottom-width: 0;
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}
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.prose tbody td {
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vertical-align: top;
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padding-top: 0.5714286em;
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padding-right: 0.5714286em;
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padding-bottom: 0.5714286em;
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padding-left: 0.5714286em;
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}
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.prose p {
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margin-top: 1.25em;
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margin-bottom: 1.25em;
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}
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/* prose-sm modifier */
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.prose-sm {
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font-size: 0.875rem;
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line-height: 1.7142857;
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}
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.prose-sm p {
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margin-top: 1.1428571em;
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margin-bottom: 1.1428571em;
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}
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.prose-sm h1 {
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font-size: 2.1428571em;
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margin-top: 0;
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margin-bottom: 0.8em;
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line-height: 1.2;
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}
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.prose-sm h2 {
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font-size: 1.4285714em;
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margin-top: 1.6em;
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margin-bottom: 0.8em;
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line-height: 1.4;
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}
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.prose-sm h3 {
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font-size: 1.2857143em;
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margin-top: 1.5555556em;
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margin-bottom: 0.4444444em;
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line-height: 1.5555556;
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}
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.prose-sm h4 {
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margin-top: 1.4285714em;
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margin-bottom: 0.5714286em;
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line-height: 1.4285714;
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}
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.prose-sm img {
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margin-top: 1.7142857em;
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margin-bottom: 1.7142857em;
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}
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.prose-sm ol, .prose-sm ul {
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margin-top: 1.1428571em;
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margin-bottom: 1.1428571em;
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padding-left: 1.5714286em;
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}
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.prose-sm li {
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margin-top: 0.2857143em;
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margin-bottom: 0.2857143em;
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}
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/* max-w-none utility */
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.max-w-none {
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max-width: none;
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}
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/* Custom editor styles */
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.variable-highlight, .variable-placeholder, .variable-mention {
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background-color: #dbeafe;
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color: #1e40af;
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padding: 2px 6px;
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border-radius: 3px;
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font-family: 'Courier New', monospace;
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font-size: 14px;
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display: inline;
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}
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.prose table {
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border-collapse: collapse;
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width: 100%;
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margin: 16px 0;
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}
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.prose th, .prose td {
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border: 1px solid #e5e7eb;
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padding: 8px 12px;
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text-align: left;
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min-width: 100px;
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}
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.prose th {
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background-color: #f3f4f6;
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font-weight: 600;
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}
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.prose img {
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max-width: 100%;
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height: auto;
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display: block;
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margin: 16px 0;
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}
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.prose .resizable-image-wrapper {
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display: block;
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margin: 16px 0;
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}
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.prose .resizable-image-container {
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display: inline-block;
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position: relative;
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max-width: 100%;
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}
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.prose .resizable-image-container img {
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margin: 0;
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}
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</style>
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</head>
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<body>
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<div class="prose prose-sm max-w-none">
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${htmlBody}
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</div>
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</body>
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</html>`;
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};
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