Files
paperclip/server/src/ui-branding.ts
2026-03-10 16:15:11 -05:00

42 lines
1.8 KiB
TypeScript

const FAVICON_BLOCK_START = "<!-- PAPERCLIP_FAVICON_START -->";
const FAVICON_BLOCK_END = "<!-- PAPERCLIP_FAVICON_END -->";
const DEFAULT_FAVICON_LINKS = [
'<link rel="icon" href="/favicon.ico" sizes="48x48" />',
'<link rel="icon" href="/favicon.svg" type="image/svg+xml" />',
'<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />',
'<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png" />',
].join("\n");
const WORKTREE_FAVICON_LINKS = [
'<link rel="icon" href="/worktree-favicon.ico" sizes="48x48" />',
'<link rel="icon" href="/worktree-favicon.svg" type="image/svg+xml" />',
'<link rel="icon" type="image/png" sizes="32x32" href="/worktree-favicon-32x32.png" />',
'<link rel="icon" type="image/png" sizes="16x16" href="/worktree-favicon-16x16.png" />',
].join("\n");
function isTruthyEnvValue(value: string | undefined): boolean {
if (!value) return false;
const normalized = value.trim().toLowerCase();
return normalized === "1" || normalized === "true" || normalized === "yes" || normalized === "on";
}
export function isWorktreeUiBrandingEnabled(env: NodeJS.ProcessEnv = process.env): boolean {
return isTruthyEnvValue(env.PAPERCLIP_IN_WORKTREE);
}
export function renderFaviconLinks(worktree: boolean): string {
return worktree ? WORKTREE_FAVICON_LINKS : DEFAULT_FAVICON_LINKS;
}
export function applyUiBranding(html: string, env: NodeJS.ProcessEnv = process.env): string {
const start = html.indexOf(FAVICON_BLOCK_START);
const end = html.indexOf(FAVICON_BLOCK_END);
if (start === -1 || end === -1 || end < start) return html;
const before = html.slice(0, start + FAVICON_BLOCK_START.length);
const after = html.slice(end);
const links = renderFaviconLinks(isWorktreeUiBrandingEnabled(env));
return `${before}\n${links}\n ${after}`;
}