641 lines
20 KiB
JavaScript
641 lines
20 KiB
JavaScript
function asArray$1(value) {
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return Array.isArray(value) ? value : [value];
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}
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const SelfClosingTags = ["meta", "link", "base"];
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const TagsWithInnerContent = ["title", "titleTemplate", "script", "style", "noscript"];
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const HasElementTags = [
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"base",
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"meta",
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"link",
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"style",
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"script",
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"noscript"
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];
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const ValidHeadTags = [
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"title",
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"titleTemplate",
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"templateParams",
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"base",
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"htmlAttrs",
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"bodyAttrs",
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"meta",
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"link",
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"style",
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"script",
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"noscript"
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];
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const UniqueTags = ["base", "title", "titleTemplate", "bodyAttrs", "htmlAttrs", "templateParams"];
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const TagConfigKeys = ["tagPosition", "tagPriority", "tagDuplicateStrategy", "children", "innerHTML", "textContent", "processTemplateParams"];
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const IsBrowser = typeof window !== "undefined";
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const composableNames = [
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"getActiveHead",
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"useHead",
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"useSeoMeta",
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"useHeadSafe",
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"useServerHead",
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"useServerSeoMeta",
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"useServerHeadSafe"
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];
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function defineHeadPlugin(plugin) {
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return plugin;
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}
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function hashCode(s) {
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let h = 9;
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for (let i = 0; i < s.length; )
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h = Math.imul(h ^ s.charCodeAt(i++), 9 ** 9);
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return ((h ^ h >>> 9) + 65536).toString(16).substring(1, 8).toLowerCase();
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}
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function hashTag(tag) {
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return tag._h || hashCode(tag._d ? tag._d : `${tag.tag}:${tag.textContent || tag.innerHTML || ""}:${Object.entries(tag.props).map(([key, value]) => `${key}:${String(value)}`).join(",")}`);
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}
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function tagDedupeKey(tag, fn) {
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const { props, tag: tagName } = tag;
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if (UniqueTags.includes(tagName))
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return tagName;
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if (tagName === "link" && props.rel === "canonical")
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return "canonical";
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if (props.charset)
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return "charset";
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const name = ["id"];
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if (tagName === "meta")
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name.push(...["name", "property", "http-equiv"]);
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for (const n of name) {
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if (typeof props[n] !== "undefined") {
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const val = String(props[n]);
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if (fn && !fn(val))
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return false;
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return `${tagName}:${n}:${val}`;
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}
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}
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return false;
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}
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function resolveTitleTemplate(template, title) {
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if (template == null)
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return title || null;
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if (typeof template === "function")
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return template(title);
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return template;
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}
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function asArray(input) {
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return Array.isArray(input) ? input : [input];
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}
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const InternalKeySymbol = "_$key";
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function packObject(input, options) {
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const keys = Object.keys(input);
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let [k, v] = keys;
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options = options || {};
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options.key = options.key || k;
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options.value = options.value || v;
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options.resolveKey = options.resolveKey || ((k2) => k2);
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const resolveKey = (index) => {
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const arr = asArray(options?.[index]);
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return arr.find((k2) => {
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if (typeof k2 === "string" && k2.includes(".")) {
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return k2;
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}
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return k2 && keys.includes(k2);
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});
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};
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const resolveValue = (k2, input2) => {
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if (k2.includes(".")) {
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const paths = k2.split(".");
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let val = input2;
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for (const path of paths)
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val = val[path];
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return val;
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}
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return input2[k2];
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};
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k = resolveKey("key") || k;
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v = resolveKey("value") || v;
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const dedupeKeyPrefix = input.key ? `${InternalKeySymbol}${input.key}-` : "";
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let keyValue = resolveValue(k, input);
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keyValue = options.resolveKey(keyValue);
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return {
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[`${dedupeKeyPrefix}${keyValue}`]: resolveValue(v, input)
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};
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}
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function packArray(input, options) {
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const packed = {};
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for (const i of input) {
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const packedObj = packObject(i, options);
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const pKey = Object.keys(packedObj)[0];
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const isDedupeKey = pKey.startsWith(InternalKeySymbol);
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if (!isDedupeKey && packed[pKey]) {
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packed[pKey] = Array.isArray(packed[pKey]) ? packed[pKey] : [packed[pKey]];
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packed[pKey].push(Object.values(packedObj)[0]);
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} else {
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packed[isDedupeKey ? pKey.split("-").slice(1).join("-") || pKey : pKey] = packedObj[pKey];
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}
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}
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return packed;
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}
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function unpackToArray(input, options) {
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const unpacked = [];
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const kFn = options.resolveKeyData || ((ctx) => ctx.key);
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const vFn = options.resolveValueData || ((ctx) => ctx.value);
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for (const [k, v] of Object.entries(input)) {
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unpacked.push(...(Array.isArray(v) ? v : [v]).map((i) => {
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const ctx = { key: k, value: i };
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const val = vFn(ctx);
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if (typeof val === "object")
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return unpackToArray(val, options);
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if (Array.isArray(val))
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return val;
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return {
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[typeof options.key === "function" ? options.key(ctx) : options.key]: kFn(ctx),
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[typeof options.value === "function" ? options.value(ctx) : options.value]: val
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};
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}).flat());
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}
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return unpacked;
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}
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function unpackToString(value, options) {
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return Object.entries(value).map(([key, value2]) => {
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if (typeof value2 === "object")
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value2 = unpackToString(value2, options);
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if (options.resolve) {
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const resolved = options.resolve({ key, value: value2 });
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if (resolved)
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return resolved;
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}
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if (typeof value2 === "number")
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value2 = value2.toString();
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if (typeof value2 === "string" && options.wrapValue) {
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value2 = value2.replace(new RegExp(options.wrapValue, "g"), `\\${options.wrapValue}`);
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value2 = `${options.wrapValue}${value2}${options.wrapValue}`;
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}
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return `${key}${options.keyValueSeparator || ""}${value2}`;
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}).join(options.entrySeparator || "");
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}
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const p = (p2) => ({ keyValue: p2, metaKey: "property" });
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const k = (p2) => ({ keyValue: p2 });
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const MetaPackingSchema = {
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appleItunesApp: {
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unpack: {
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entrySeparator: ", ",
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resolve({ key, value }) {
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return `${fixKeyCase(key)}=${value}`;
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}
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}
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},
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articleExpirationTime: p("article:expiration_time"),
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articleModifiedTime: p("article:modified_time"),
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articlePublishedTime: p("article:published_time"),
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bookReleaseDate: p("book:release_date"),
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charset: {
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metaKey: "charset"
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},
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contentSecurityPolicy: {
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unpack: {
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entrySeparator: "; ",
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resolve({ key, value }) {
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return `${fixKeyCase(key)} ${value}`;
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}
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},
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metaKey: "http-equiv"
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},
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contentType: {
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metaKey: "http-equiv"
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},
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defaultStyle: {
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metaKey: "http-equiv"
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},
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fbAppId: p("fb:app_id"),
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msapplicationConfig: k("msapplication-Config"),
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msapplicationTileColor: k("msapplication-TileColor"),
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msapplicationTileImage: k("msapplication-TileImage"),
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ogAudioSecureUrl: p("og:audio:secure_url"),
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ogAudioUrl: p("og:audio"),
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ogImageSecureUrl: p("og:image:secure_url"),
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ogImageUrl: p("og:image"),
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ogSiteName: p("og:site_name"),
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ogVideoSecureUrl: p("og:video:secure_url"),
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ogVideoUrl: p("og:video"),
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profileFirstName: p("profile:first_name"),
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profileLastName: p("profile:last_name"),
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profileUsername: p("profile:username"),
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refresh: {
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metaKey: "http-equiv",
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unpack: {
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entrySeparator: ";",
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resolve({ key, value }) {
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if (key === "seconds")
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return `${value}`;
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}
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}
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},
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robots: {
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unpack: {
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entrySeparator: ", ",
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resolve({ key, value }) {
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if (typeof value === "boolean")
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return `${fixKeyCase(key)}`;
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else
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return `${fixKeyCase(key)}:${value}`;
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}
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}
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},
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xUaCompatible: {
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metaKey: "http-equiv"
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}
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};
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const openGraphNamespaces = [
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"og",
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"book",
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"article",
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"profile"
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];
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function resolveMetaKeyType(key) {
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const fKey = fixKeyCase(key).split(":")[0];
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if (openGraphNamespaces.includes(fKey))
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return "property";
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return MetaPackingSchema[key]?.metaKey || "name";
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}
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function resolveMetaKeyValue(key) {
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return MetaPackingSchema[key]?.keyValue || fixKeyCase(key);
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}
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function fixKeyCase(key) {
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const updated = key.replace(/([A-Z])/g, "-$1").toLowerCase();
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const fKey = updated.split("-")[0];
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if (openGraphNamespaces.includes(fKey) || fKey === "twitter")
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return key.replace(/([A-Z])/g, ":$1").toLowerCase();
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return updated;
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}
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function changeKeyCasingDeep(input) {
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if (Array.isArray(input)) {
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return input.map((entry) => changeKeyCasingDeep(entry));
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}
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if (typeof input !== "object" || Array.isArray(input))
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return input;
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const output = {};
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for (const [key, value] of Object.entries(input))
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output[fixKeyCase(key)] = changeKeyCasingDeep(value);
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return output;
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}
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function resolvePackedMetaObjectValue(value, key) {
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const definition = MetaPackingSchema[key];
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if (key === "refresh")
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return `${value.seconds};url=${value.url}`;
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return unpackToString(
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changeKeyCasingDeep(value),
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{
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keyValueSeparator: "=",
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entrySeparator: ", ",
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resolve({ value: value2, key: key2 }) {
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if (value2 === null)
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return "";
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if (typeof value2 === "boolean")
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return `${key2}`;
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},
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...definition?.unpack
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}
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);
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}
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const ObjectArrayEntries = ["og:image", "og:video", "og:audio", "twitter:image"];
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function sanitize(input) {
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const out = {};
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Object.entries(input).forEach(([k2, v]) => {
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if (String(v) !== "false" && k2)
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out[k2] = v;
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});
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return out;
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}
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function handleObjectEntry(key, v) {
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const value = sanitize(v);
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const fKey = fixKeyCase(key);
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const attr = resolveMetaKeyType(fKey);
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if (ObjectArrayEntries.includes(fKey)) {
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const input = {};
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Object.entries(value).forEach(([k2, v2]) => {
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input[`${key}${k2 === "url" ? "" : `${k2.charAt(0).toUpperCase()}${k2.slice(1)}`}`] = v2;
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});
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return unpackMeta(input).sort((a, b) => (a[attr]?.length || 0) - (b[attr]?.length || 0));
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}
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return [{ [attr]: fKey, ...value }];
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}
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function unpackMeta(input) {
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const extras = [];
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const primitives = {};
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Object.entries(input).forEach(([key, value]) => {
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if (!Array.isArray(value)) {
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if (typeof value === "object" && value) {
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if (ObjectArrayEntries.includes(fixKeyCase(key))) {
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extras.push(...handleObjectEntry(key, value));
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return;
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}
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primitives[key] = sanitize(value);
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} else {
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primitives[key] = value;
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}
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return;
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}
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value.forEach((v) => {
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extras.push(...typeof v === "string" ? unpackMeta({ [key]: v }) : handleObjectEntry(key, v));
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});
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});
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const meta = unpackToArray(primitives, {
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key({ key }) {
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return resolveMetaKeyType(key);
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},
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value({ key }) {
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return key === "charset" ? "charset" : "content";
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},
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resolveKeyData({ key }) {
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return resolveMetaKeyValue(key);
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},
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resolveValueData({ value, key }) {
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if (value === null)
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return "_null";
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if (typeof value === "object")
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return resolvePackedMetaObjectValue(value, key);
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return typeof value === "number" ? value.toString() : value;
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}
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});
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return [...extras, ...meta].map((m) => {
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if (m.content === "_null")
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m.content = null;
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return m;
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});
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}
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function packMeta(inputs) {
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const mappedPackingSchema = Object.entries(MetaPackingSchema).map(([key, value]) => [key, value.keyValue]);
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return packArray(inputs, {
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key: ["name", "property", "httpEquiv", "http-equiv", "charset"],
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value: ["content", "charset"],
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resolveKey(k2) {
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let key = mappedPackingSchema.filter((sk) => sk[1] === k2)?.[0]?.[0] || k2;
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const replacer = (_, letter) => letter?.toUpperCase();
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key = key.replace(/:([a-z])/g, replacer).replace(/-([a-z])/g, replacer);
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return key;
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}
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});
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}
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const WhitelistAttributes = {
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htmlAttrs: ["id", "class", "lang", "dir"],
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bodyAttrs: ["id", "class"],
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meta: ["id", "name", "property", "charset", "content"],
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noscript: ["id", "textContent"],
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script: ["id", "type", "textContent"],
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link: ["id", "color", "crossorigin", "fetchpriority", "href", "hreflang", "imagesrcset", "imagesizes", "integrity", "media", "referrerpolicy", "rel", "sizes", "type"]
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};
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function acceptDataAttrs(value) {
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const filtered = {};
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Object.keys(value || {}).filter((a) => a.startsWith("data-")).forEach((a) => {
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filtered[a] = value[a];
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});
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return filtered;
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}
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function whitelistSafeInput(input) {
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const filtered = {};
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Object.keys(input).forEach((key) => {
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const tagValue = input[key];
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if (!tagValue)
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return;
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switch (key) {
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case "title":
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case "titleTemplate":
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case "templateParams":
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filtered[key] = tagValue;
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break;
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case "htmlAttrs":
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case "bodyAttrs":
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filtered[key] = acceptDataAttrs(tagValue);
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WhitelistAttributes[key].forEach((a) => {
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if (tagValue[a])
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filtered[key][a] = tagValue[a];
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});
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break;
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case "meta":
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if (Array.isArray(tagValue)) {
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filtered[key] = tagValue.map((meta) => {
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const safeMeta = acceptDataAttrs(meta);
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WhitelistAttributes.meta.forEach((key2) => {
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if (meta[key2])
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safeMeta[key2] = meta[key2];
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});
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return safeMeta;
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}).filter((meta) => Object.keys(meta).length > 0);
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}
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break;
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case "link":
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if (Array.isArray(tagValue)) {
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filtered[key] = tagValue.map((meta) => {
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const link = acceptDataAttrs(meta);
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WhitelistAttributes.link.forEach((key2) => {
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const val = meta[key2];
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if (key2 === "rel" && ["stylesheet", "canonical", "modulepreload", "prerender", "preload", "prefetch"].includes(val))
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return;
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if (key2 === "href") {
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if (val.includes("javascript:") || val.includes("data:"))
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return;
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link[key2] = val;
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} else if (val) {
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link[key2] = val;
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}
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});
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return link;
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}).filter((link) => Object.keys(link).length > 1 && !!link.rel);
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}
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break;
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case "noscript":
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if (Array.isArray(tagValue)) {
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filtered[key] = tagValue.map((meta) => {
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const noscript = acceptDataAttrs(meta);
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WhitelistAttributes.noscript.forEach((key2) => {
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if (meta[key2])
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noscript[key2] = meta[key2];
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});
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return noscript;
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}).filter((meta) => Object.keys(meta).length > 0);
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}
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break;
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case "script":
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if (Array.isArray(tagValue)) {
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filtered[key] = tagValue.map((script) => {
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const safeScript = acceptDataAttrs(script);
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WhitelistAttributes.script.forEach((s) => {
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if (script[s]) {
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if (s === "textContent") {
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try {
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const jsonVal = typeof script[s] === "string" ? JSON.parse(script[s]) : script[s];
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safeScript[s] = JSON.stringify(jsonVal, null, 0);
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} catch (e) {
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}
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} else {
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safeScript[s] = script[s];
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}
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}
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});
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return safeScript;
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}).filter((meta) => Object.keys(meta).length > 0);
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}
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break;
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}
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});
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return filtered;
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}
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async function normaliseTag(tagName, input, e) {
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const tag = {
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tag: tagName,
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props: await normaliseProps(
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// explicitly check for an object
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// @ts-expect-error untyped
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typeof input === "object" && typeof input !== "function" && !(input instanceof Promise) ? { ...input } : { [["script", "noscript", "style"].includes(tagName) ? "innerHTML" : "textContent"]: input },
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["templateParams", "titleTemplate"].includes(tagName)
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)
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};
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TagConfigKeys.forEach((k) => {
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const val = typeof tag.props[k] !== "undefined" ? tag.props[k] : e[k];
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if (typeof val !== "undefined") {
|
|
if (!["innerHTML", "textContent", "children"].includes(k) || TagsWithInnerContent.includes(tag.tag)) {
|
|
tag[k === "children" ? "innerHTML" : k] = val;
|
|
}
|
|
delete tag.props[k];
|
|
}
|
|
});
|
|
if (tag.props.body) {
|
|
tag.tagPosition = "bodyClose";
|
|
delete tag.props.body;
|
|
}
|
|
if (tag.tag === "script") {
|
|
if (typeof tag.innerHTML === "object") {
|
|
tag.innerHTML = JSON.stringify(tag.innerHTML);
|
|
tag.props.type = tag.props.type || "application/json";
|
|
}
|
|
}
|
|
return Array.isArray(tag.props.content) ? tag.props.content.map((v) => ({ ...tag, props: { ...tag.props, content: v } })) : tag;
|
|
}
|
|
function normaliseClassProp(v) {
|
|
if (typeof v === "object" && !Array.isArray(v)) {
|
|
v = Object.keys(v).filter((k) => v[k]);
|
|
}
|
|
return (Array.isArray(v) ? v.join(" ") : v).split(" ").filter((c) => c.trim()).filter(Boolean).join(" ");
|
|
}
|
|
async function normaliseProps(props, virtual) {
|
|
for (const k of Object.keys(props)) {
|
|
if (k === "class") {
|
|
props[k] = normaliseClassProp(props[k]);
|
|
continue;
|
|
}
|
|
if (props[k] instanceof Promise)
|
|
props[k] = await props[k];
|
|
if (!virtual && !TagConfigKeys.includes(k)) {
|
|
const v = String(props[k]);
|
|
const isDataKey = k.startsWith("data-");
|
|
if (v === "true" || v === "") {
|
|
props[k] = isDataKey ? "true" : true;
|
|
} else if (!props[k]) {
|
|
if (isDataKey && v === "false")
|
|
props[k] = "false";
|
|
else
|
|
delete props[k];
|
|
}
|
|
}
|
|
}
|
|
return props;
|
|
}
|
|
const TagEntityBits = 10;
|
|
async function normaliseEntryTags(e) {
|
|
const tagPromises = [];
|
|
Object.entries(e.resolvedInput).filter(([k, v]) => typeof v !== "undefined" && ValidHeadTags.includes(k)).forEach(([k, value]) => {
|
|
const v = asArray$1(value);
|
|
tagPromises.push(...v.map((props) => normaliseTag(k, props, e)).flat());
|
|
});
|
|
return (await Promise.all(tagPromises)).flat().filter(Boolean).map((t, i) => {
|
|
t._e = e._i;
|
|
e.mode && (t._m = e.mode);
|
|
t._p = (e._i << TagEntityBits) + i;
|
|
return t;
|
|
});
|
|
}
|
|
|
|
const TAG_WEIGHTS = {
|
|
// tags
|
|
base: -10,
|
|
title: 10
|
|
};
|
|
const TAG_ALIASES = {
|
|
// relative scores to their default values
|
|
critical: -80,
|
|
high: -10,
|
|
low: 20
|
|
};
|
|
function tagWeight(tag) {
|
|
let weight = 100;
|
|
const priority = tag.tagPriority;
|
|
if (typeof priority === "number")
|
|
return priority;
|
|
if (tag.tag === "meta") {
|
|
if (tag.props["http-equiv"] === "content-security-policy")
|
|
weight = -30;
|
|
if (tag.props.charset)
|
|
weight = -20;
|
|
if (tag.props.name === "viewport")
|
|
weight = -15;
|
|
} else if (tag.tag === "link" && tag.props.rel === "preconnect") {
|
|
weight = 20;
|
|
} else if (tag.tag in TAG_WEIGHTS) {
|
|
weight = TAG_WEIGHTS[tag.tag];
|
|
}
|
|
if (typeof priority === "string" && priority in TAG_ALIASES) {
|
|
return weight + TAG_ALIASES[priority];
|
|
}
|
|
return weight;
|
|
}
|
|
const SortModifiers = [{ prefix: "before:", offset: -1 }, { prefix: "after:", offset: 1 }];
|
|
|
|
const NetworkEvents = ["onload", "onerror", "onabort", "onprogress", "onloadstart"];
|
|
|
|
const sepSub = "%separator";
|
|
function processTemplateParams(s, p, sep) {
|
|
if (typeof s !== "string" || !s.includes("%"))
|
|
return s;
|
|
function sub(token) {
|
|
let val;
|
|
if (["s", "pageTitle"].includes(token)) {
|
|
val = p.pageTitle;
|
|
} else if (token.includes(".")) {
|
|
val = token.split(".").reduce((acc, key) => acc ? acc[key] || void 0 : void 0, p);
|
|
} else {
|
|
val = p[token];
|
|
}
|
|
return typeof val !== "undefined" ? (val || "").replace(/"/g, '\\"') : false;
|
|
}
|
|
let decoded = s;
|
|
try {
|
|
decoded = decodeURI(s);
|
|
} catch {
|
|
}
|
|
const tokens = (decoded.match(/%(\w+\.+\w+)|%(\w+)/g) || []).sort().reverse();
|
|
tokens.forEach((token) => {
|
|
const re = sub(token.slice(1));
|
|
if (typeof re === "string") {
|
|
s = s.replace(new RegExp(`\\${token}(\\W|$)`, "g"), (_, args) => `${re}${args}`).trim();
|
|
}
|
|
});
|
|
if (s.includes(sepSub)) {
|
|
if (s.endsWith(sepSub))
|
|
s = s.slice(0, -sepSub.length).trim();
|
|
if (s.startsWith(sepSub))
|
|
s = s.slice(sepSub.length).trim();
|
|
s = s.replace(new RegExp(`\\${sepSub}\\s*\\${sepSub}`, "g"), sepSub);
|
|
s = processTemplateParams(s, { separator: sep }, sep);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
export { HasElementTags, IsBrowser, NetworkEvents, SelfClosingTags, SortModifiers, TAG_ALIASES, TAG_WEIGHTS, TagConfigKeys, TagEntityBits, TagsWithInnerContent, UniqueTags, ValidHeadTags, asArray$1 as asArray, composableNames, defineHeadPlugin, hashCode, hashTag, normaliseClassProp, normaliseEntryTags, normaliseProps, normaliseTag, packMeta, processTemplateParams, resolveMetaKeyType, resolveMetaKeyValue, resolvePackedMetaObjectValue, resolveTitleTemplate, tagDedupeKey, tagWeight, unpackMeta, whitelistSafeInput };
|