566 lines
17 KiB
TypeScript
566 lines
17 KiB
TypeScript
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import type { Icon, ResolvedMetadata } from "./types";
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import { escapeHTML as esc } from "./utils";
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function Meta(name: string, content: any) {
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return `<meta name="${esc(name)}" content="${esc(content)}">`;
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}
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function MetaProp(name: string, content: any) {
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return `<meta property="${esc(name)}" content="${esc(content)}">`;
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}
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function MetaMedia(name: string, content: any, media: string) {
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return `<meta name="${esc(name)}" content="${esc(content)}" media="${
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esc(media)
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}">`;
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}
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function Link(rel: string, href: any) {
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return `<link rel="${esc(rel)}" href="${esc(href)}" />`;
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}
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function LinkMedia(rel: string, href: any, media: string) {
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return `<link rel="${esc(rel)}" href="${esc(href)}" media="${esc(media)}">`;
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}
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const resolveUrl = (
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url: string | URL,
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) => (typeof url === "string" ? url : url.toString());
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function IconLink(rel: string, icon: Icon) {
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if (typeof icon === "object" && !(icon instanceof URL)) {
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const { url, rel: _, ...props } = icon;
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return `<link rel="${esc(rel)}" href="${esc(resolveUrl(url))}"${
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Object.keys(props)
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.map((key) => ` ${key}="${esc(props[key])}"`)
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.join("")
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}>`;
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} else {
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const href = resolveUrl(icon);
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return Link(rel, href);
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}
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}
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function ExtendMeta(prefix: string, content: any) {
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if (
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typeof content === "string" || typeof content === "number" ||
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content instanceof URL
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) {
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return MetaProp(prefix, content);
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} else {
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let str = "";
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for (const [prop, value] of Object.entries(content)) {
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if (value) {
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str += MetaProp(
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prefix === "og:image" && prop === "url"
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? "og:image"
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: prefix + ":" + prop,
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value,
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);
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}
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}
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return str;
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}
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}
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const formatDetectionKeys = [
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"telephone",
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"date",
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"address",
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"email",
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"url",
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] as const;
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export function renderMetadata(meta: ResolvedMetadata): string {
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var str = "";
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// <BasicMetadata/>
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if (meta.title?.absolute) str += `<title>${esc(meta.title.absolute)}</title>`;
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if (meta.description) str += Meta("description", meta.description);
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if (meta.applicationName) {
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str += Meta("application-name", meta.applicationName);
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}
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if (meta.authors) {
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for (var author of meta.authors) {
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if (author.url) str += Link("author", author.url);
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if (author.name) str += Meta("author", author.name);
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}
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}
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if (meta.manifest) str += Link("manifest", meta.manifest);
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if (meta.generator) str += Meta("generator", meta.generator);
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if (meta.referrer) str += Meta("referrer", meta.referrer);
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if (meta.themeColor) {
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for (var themeColor of meta.themeColor) {
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str += !themeColor.media
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? Meta("theme-color", themeColor.color)
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: MetaMedia("theme-color", themeColor.color, themeColor.media);
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}
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}
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if (meta.colorScheme) str += Meta("color-scheme", meta.colorScheme);
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if (meta.viewport) str += Meta("viewport", meta.viewport);
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if (meta.creator) str += Meta("creator", meta.creator);
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if (meta.publisher) str += Meta("publisher", meta.publisher);
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if (meta.robots?.basic) str += Meta("robots", meta.robots.basic);
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if (meta.robots?.googleBot) str += Meta("googlebot", meta.robots.googleBot);
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if (meta.abstract) str += Meta("abstract", meta.abstract);
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if (meta.archives) {
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for (var archive of meta.archives) {
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str += Link("archives", archive);
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}
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}
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if (meta.assets) {
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for (var asset of meta.assets) {
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str += Link("assets", asset);
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}
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}
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if (meta.bookmarks) {
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for (var bookmark of meta.bookmarks) {
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str += Link("bookmarks", bookmark);
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}
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}
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if (meta.category) str += Meta("category", meta.category);
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if (meta.classification) str += Meta("classification", meta.classification);
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if (meta.other) {
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for (var [name, content] of Object.entries(meta.other)) {
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if (content) {
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str += Meta(name, Array.isArray(content) ? content.join(",") : content);
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}
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}
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}
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// <AlternatesMetadata />
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var alternates = meta.alternates;
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if (alternates) {
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if (alternates.canonical) {
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str += Link("canonical", alternates.canonical.url);
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}
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if (alternates.languages) {
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for (var [locale, urls] of Object.entries(alternates.languages)) {
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for (var { url, title } of urls) {
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str += `<link rel="alternate" hreflang="${esc(locale)}" href="${
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esc(url.toString())
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}"${title ? ` title="${esc(title)}"` : ""}>`;
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}
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}
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}
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if (alternates.media) {
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for (var [media, urls2] of Object.entries(alternates.media)) {
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if (urls2) {
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for (var { url, title } of urls2) {
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str += `<link rel="alternate" media="${esc(media)}" href="${
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esc(url.toString())
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}"${title ? ` title="${esc(title)}"` : ""}>`;
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}
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}
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}
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}
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if (alternates.types) {
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for (var [type, urls2] of Object.entries(alternates.types)) {
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if (urls2) {
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for (var { url, title } of urls2) {
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str += `<link rel="alternate" type="${esc(type)}" href="${
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esc(url.toString())
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}"${title ? ` title="${esc(title)}"` : ""}>`;
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}
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}
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}
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}
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}
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// <ItunesMeta />
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if (meta.itunes) {
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str += Meta(
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"apple-itunes-app",
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`app-id=${meta.itunes.appId}${
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meta.itunes.appArgument
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? `, app-argument=${meta.itunes.appArgument}`
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: ""
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}`,
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);
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}
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// <FormatDetectionMeta />
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if (meta.formatDetection) {
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var contentStr = "";
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for (var key of formatDetectionKeys) {
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if (key in meta.formatDetection) {
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if (contentStr) contentStr += ", ";
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contentStr += `${key}=no`;
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}
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}
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str += Meta("format-detection", contentStr);
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}
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// <VerificationMeta />
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if (meta.verification) {
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if (meta.verification.google) {
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for (var verificationKey of meta.verification.google) {
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str += Meta("google-site-verification", verificationKey);
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}
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}
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if (meta.verification.yahoo) {
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for (var verificationKey of meta.verification.yahoo) {
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str += Meta("y_key", verificationKey);
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}
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}
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if (meta.verification.yandex) {
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for (var verificationKey of meta.verification.yandex) {
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str += Meta("yandex-verification", verificationKey);
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}
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}
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if (meta.verification.me) {
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for (var verificationKey of meta.verification.me) {
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str += Meta("me", verificationKey);
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}
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}
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if (meta.verification.other) {
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for (
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var [verificationKey2, values] of Object.entries(
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meta.verification.other,
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)
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) {
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for (var value of values) {
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str += Meta(verificationKey2, value);
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}
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}
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}
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}
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// <AppleWebAppMeta />
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if (meta.appleWebApp) {
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const { capable, title, startupImage, statusBarStyle } = meta.appleWebApp;
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if (capable) {
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str += '<meta name="apple-mobile-web-app-capable" content="yes" />';
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}
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if (title) str += Meta("apple-mobile-web-app-title", title);
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if (startupImage) {
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for (const img of startupImage) {
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str += !img.media
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? Link("apple-touch-startup-image", img.url)
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: LinkMedia("apple-touch-startup-image", img.url, img.media);
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}
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}
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if (statusBarStyle) {
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str += Meta("apple-mobile-web-app-status-bar-style", statusBarStyle);
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}
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}
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// <OpenGraphMetadata />
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if (meta.openGraph) {
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const og = meta.openGraph;
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if (og.determiner) str += MetaProp("og:determiner", og.determiner);
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if (og.title?.absolute) str += MetaProp("og:title", og.title.absolute);
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if (og.description) str += MetaProp("og:description", og.description);
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if (og.url) str += MetaProp("og:url", og.url.toString());
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if (og.siteName) str += MetaProp("og:site_name", og.siteName);
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if (og.locale) str += MetaProp("og:locale", og.locale);
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if (og.countryName) str += MetaProp("og:country_name", og.countryName);
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if (og.ttl) str += MetaProp("og:ttl", og.ttl);
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if (og.images) {
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for (const item of og.images) {
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str += ExtendMeta("og:image", item);
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}
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}
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if (og.videos) {
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for (const item of og.videos) {
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str += ExtendMeta("og:video", item);
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}
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}
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if (og.audio) {
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for (const item of og.audio) {
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str += ExtendMeta("og:audio", item);
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}
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}
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if (og.emails) {
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for (const item of og.emails) {
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str += ExtendMeta("og:email", item);
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}
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}
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if (og.phoneNumbers) {
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for (const item of og.phoneNumbers) {
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str += MetaProp("og:phone_number", item);
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}
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}
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if (og.faxNumbers) {
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for (const item of og.faxNumbers) {
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str += MetaProp("og:fax_number", item);
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}
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}
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if (og.alternateLocale) {
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for (const item of og.alternateLocale) {
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str += MetaProp("og:locale:alternate", item);
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}
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}
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if ("type" in og) {
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str += MetaProp("og:type", og.type);
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switch (og.type) {
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case "website":
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break;
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case "article":
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if (og.publishedTime) {
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str += MetaProp("article:published_time", og.publishedTime);
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}
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if (og.modifiedTime) {
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str += MetaProp("article:modified_time", og.modifiedTime);
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}
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if (og.expirationTime) {
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str += MetaProp("article:expiration_time", og.expirationTime);
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}
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if (og.authors) {
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for (const item of og.authors) {
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str += MetaProp("article:author", item);
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}
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}
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if (og.section) str += MetaProp("article:section", og.section);
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if (og.tags) {
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for (const item of og.tags) {
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str += MetaProp("article:tag", item);
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}
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}
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break;
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case "book":
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if (og.isbn) str += MetaProp("book:isbn", og.isbn);
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if (og.releaseDate) {
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str += MetaProp("book:release_date", og.releaseDate);
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}
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if (og.authors) {
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for (const item of og.authors) {
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str += MetaProp("article:author", item);
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}
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}
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if (og.tags) {
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for (const item of og.tags) {
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str += MetaProp("article:tag", item);
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}
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}
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break;
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case "profile":
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if (og.firstName) str += MetaProp("profile:first_name", og.firstName);
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if (og.lastName) str += MetaProp("profile:last_name", og.lastName);
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if (og.username) str += MetaProp("profile:first_name", og.username);
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if (og.gender) str += MetaProp("profile:first_name", og.gender);
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break;
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case "music.song":
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if (og.duration) str += MetaProp("music:duration", og.duration);
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if (og.albums) {
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for (const item of og.albums) {
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str += ExtendMeta("music:albums", item);
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}
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}
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if (og.musicians) {
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for (const item of og.musicians) {
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str += MetaProp("music:musician", item);
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}
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}
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break;
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case "music.album":
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if (og.songs) {
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for (const item of og.songs) {
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str += ExtendMeta("music:song", item);
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}
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}
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if (og.musicians) {
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for (const item of og.musicians) {
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str += MetaProp("music:musician", item);
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}
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}
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if (og.releaseDate) {
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str += MetaProp("music:release_date", og.releaseDate);
|
||
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}
|
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break;
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||
|
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case "music.playlist":
|
||
|
|
if (og.songs) {
|
||
|
|
for (const item of og.songs) {
|
||
|
|
str += ExtendMeta("music:song", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.creators) {
|
||
|
|
for (const item of og.creators) {
|
||
|
|
str += MetaProp("music:creator", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "music.radio_station":
|
||
|
|
if (og.creators) {
|
||
|
|
for (const item of og.creators) {
|
||
|
|
str += MetaProp("music:creator", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "video.movie":
|
||
|
|
if (og.actors) {
|
||
|
|
for (const item of og.actors) {
|
||
|
|
str += ExtendMeta("video:actor", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.directors) {
|
||
|
|
for (const item of og.directors) {
|
||
|
|
str += MetaProp("video:director", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.writers) {
|
||
|
|
for (const item of og.writers) {
|
||
|
|
str += MetaProp("video:writer", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.duration) str += MetaProp("video:duration", og.duration);
|
||
|
|
if (og.releaseDate) {
|
||
|
|
str += MetaProp("video:release_date", og.releaseDate);
|
||
|
|
}
|
||
|
|
if (og.tags) {
|
||
|
|
for (const item of og.tags) {
|
||
|
|
str += MetaProp("video:tag", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "video.episode":
|
||
|
|
if (og.actors) {
|
||
|
|
for (const item of og.actors) {
|
||
|
|
str += ExtendMeta("video:actor", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.directors) {
|
||
|
|
for (const item of og.directors) {
|
||
|
|
str += MetaProp("video:director", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.writers) {
|
||
|
|
for (const item of og.writers) {
|
||
|
|
str += MetaProp("video:writer", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.duration) str += MetaProp("video:duration", og.duration);
|
||
|
|
if (og.releaseDate) {
|
||
|
|
str += MetaProp("video:release_date", og.releaseDate);
|
||
|
|
}
|
||
|
|
if (og.tags) {
|
||
|
|
for (const item of og.tags) {
|
||
|
|
str += MetaProp("video:tag", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (og.series) str += MetaProp("video:series", og.series);
|
||
|
|
break;
|
||
|
|
case "video.other":
|
||
|
|
case "video.tv_show":
|
||
|
|
default:
|
||
|
|
throw new Error("Invalid OpenGraph type: " + og.type);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// <TwitterMetadata />
|
||
|
|
if (meta.twitter) {
|
||
|
|
const twitter = meta.twitter;
|
||
|
|
|
||
|
|
if (twitter.card) str += Meta("twitter:card", twitter.card);
|
||
|
|
if (twitter.site) str += Meta("twitter:site", twitter.site);
|
||
|
|
if (twitter.siteId) str += Meta("twitter:site:id", twitter.siteId);
|
||
|
|
if (twitter.creator) str += Meta("twitter:creator", twitter.creator);
|
||
|
|
if (twitter.creatorId) str += Meta("twitter:creator:id", twitter.creatorId);
|
||
|
|
if (twitter.title?.absolute) {
|
||
|
|
str += Meta("twitter:title", twitter.title.absolute);
|
||
|
|
}
|
||
|
|
if (twitter.description) {
|
||
|
|
str += Meta("twitter:description", twitter.description);
|
||
|
|
}
|
||
|
|
if (twitter.images) {
|
||
|
|
for (const img of twitter.images) {
|
||
|
|
str += Meta("twitter:image", img.url);
|
||
|
|
if (img.alt) str += Meta("twitter:image:alt", img.alt);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (twitter.card === "player") {
|
||
|
|
for (const player of twitter.players) {
|
||
|
|
if (player.playerUrl) str += Meta("twitter:player", player.playerUrl);
|
||
|
|
if (player.streamUrl) {
|
||
|
|
str += Meta("twitter:player:stream", player.streamUrl);
|
||
|
|
}
|
||
|
|
if (player.width) str += Meta("twitter:player:width", player.width);
|
||
|
|
if (player.height) str += Meta("twitter:player:height", player.height);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (twitter.card === "app") {
|
||
|
|
for (const type of ["iphone", "ipad", "googleplay"]) {
|
||
|
|
if (twitter.app.id[type]) {
|
||
|
|
str += Meta(`twitter:app:name:${type}`, twitter.app.name);
|
||
|
|
str += Meta(`twitter:app:id:${type}`, twitter.app.id[type]);
|
||
|
|
}
|
||
|
|
if (twitter.app.url?.[type]) {
|
||
|
|
str += Meta(`twitter:app:url:${type}`, twitter.app.url[type]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// <AppLinksMeta />
|
||
|
|
if (meta.appLinks) {
|
||
|
|
if (meta.appLinks.ios) {
|
||
|
|
for (var item of meta.appLinks.ios) {
|
||
|
|
str += ExtendMeta("al:ios", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.iphone) {
|
||
|
|
for (var item of meta.appLinks.iphone) {
|
||
|
|
str += ExtendMeta("al:iphone", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.ipad) {
|
||
|
|
for (var item of meta.appLinks.ipad) {
|
||
|
|
str += ExtendMeta("al:ipad", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.android) {
|
||
|
|
for (var item2 of meta.appLinks.android) {
|
||
|
|
str += ExtendMeta("al:android", item2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.windows_phone) {
|
||
|
|
for (var item3 of meta.appLinks.windows_phone) {
|
||
|
|
str += ExtendMeta("al:windows_phone", item3);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.windows) {
|
||
|
|
for (var item3 of meta.appLinks.windows) {
|
||
|
|
str += ExtendMeta("al:windows", item3);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.windows_universal) {
|
||
|
|
for (var item4 of meta.appLinks.windows_universal) {
|
||
|
|
str += ExtendMeta("al:windows_universal", item4);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.appLinks.web) {
|
||
|
|
for (const item of meta.appLinks.web) {
|
||
|
|
str += ExtendMeta("al:web", item);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// <IconsMetadata />
|
||
|
|
if (meta.icons) {
|
||
|
|
if (meta.icons.shortcut) {
|
||
|
|
for (var icon of meta.icons.shortcut) {
|
||
|
|
str += IconLink("shortcut icon", icon);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.icons.icon) {
|
||
|
|
for (var icon of meta.icons.icon) {
|
||
|
|
str += IconLink("icon", icon);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.icons.apple) {
|
||
|
|
for (var icon of meta.icons.apple) {
|
||
|
|
str += IconLink("apple-touch-icon", icon);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (meta.icons.other) {
|
||
|
|
for (var icon of meta.icons.other) {
|
||
|
|
str += IconLink(icon.rel ?? "icon", icon);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return str;
|
||
|
|
}
|