65 lines
1.7 KiB
TypeScript
65 lines
1.7 KiB
TypeScript
const MEDIA_PROXY_PATH = "/api/media/proxy";
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/** 浏览器可直接加载的公开图床，无需经 MinIO 代理缓存 */
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const DIRECT_MEDIA_HOSTS = [
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"images.unsplash.com",
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"unsplash.com",
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"i.pravatar.cc",
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"api.dicebear.com",
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"logo.clearbit.com",
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"avatars.githubusercontent.com",
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];
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function configuredMinioPublicUrl(): string {
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return (
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process.env.NEXT_PUBLIC_MINIO_PUBLIC_URL ||
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process.env.MINIO_PUBLIC_URL ||
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""
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).replace(/\/$/, "");
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}
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function isDirectMediaHost(hostname: string): boolean {
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const host = hostname.toLowerCase();
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return DIRECT_MEDIA_HOSTS.some(
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(allowed) => host === allowed || host.endsWith(`.${allowed}`)
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);
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}
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export function isExternalMediaUrl(value: string): boolean {
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return /^https?:\/\//i.test(value);
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}
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export function isMinioUrl(value: string): boolean {
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const publicUrl = configuredMinioPublicUrl();
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return Boolean(publicUrl && value.startsWith(`${publicUrl}/`));
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}
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export function mediaUrl(value?: string | null): string {
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const url = String(value || "").trim();
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if (!url) return "";
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if (/^(data:|blob:|#|mailto:|tel:)/i.test(url)) return url;
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if (/^file:/i.test(url)) return "";
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if (url.startsWith("/") && !url.startsWith("//")) {
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const publicUrl = configuredMinioPublicUrl();
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return publicUrl ? `${publicUrl}${url}` : url;
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}
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if (!isExternalMediaUrl(url)) return url;
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if (isMinioUrl(url)) return url;
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try {
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const parsed = new URL(url);
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if (isDirectMediaHost(parsed.hostname)) return url;
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} catch {
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return "";
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}
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return `${MEDIA_PROXY_PATH}?src=${encodeURIComponent(url)}`;
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}
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export function mediaUrls(values: string[]): string[] {
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return values.map(mediaUrl).filter(Boolean);
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}
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