A1300399510 69bfb3b262 1111
2025-02-20 19:30:25 +08:00

642 lines
19 KiB
JavaScript

import { unpackToString, unpackToArray, packArray } from 'packrup';
function asArray(value) {
return Array.isArray(value) ? value : [value];
}
const SelfClosingTags = /* @__PURE__ */ new Set(["meta", "link", "base"]);
const TagsWithInnerContent = /* @__PURE__ */ new Set(["title", "titleTemplate", "script", "style", "noscript"]);
const HasElementTags = /* @__PURE__ */ new Set([
"base",
"meta",
"link",
"style",
"script",
"noscript"
]);
const ValidHeadTags = /* @__PURE__ */ new Set([
"title",
"titleTemplate",
"templateParams",
"base",
"htmlAttrs",
"bodyAttrs",
"meta",
"link",
"style",
"script",
"noscript"
]);
const UniqueTags = /* @__PURE__ */ new Set(["base", "title", "titleTemplate", "bodyAttrs", "htmlAttrs", "templateParams"]);
const TagConfigKeys = /* @__PURE__ */ new Set(["tagPosition", "tagPriority", "tagDuplicateStrategy", "children", "innerHTML", "textContent", "processTemplateParams"]);
const IsBrowser = typeof window !== "undefined";
const composableNames = [
"getActiveHead",
"useHead",
"useSeoMeta",
"useHeadSafe",
"useServerHead",
"useServerSeoMeta",
"useServerHeadSafe"
];
function defineHeadPlugin(plugin) {
return plugin;
}
function hashCode(s) {
let h = 9;
for (let i = 0; i < s.length; )
h = Math.imul(h ^ s.charCodeAt(i++), 9 ** 9);
return ((h ^ h >>> 9) + 65536).toString(16).substring(1, 8).toLowerCase();
}
function hashTag(tag) {
if (tag._h) {
return tag._h;
}
if (tag._d) {
return hashCode(tag._d);
}
let content = `${tag.tag}:${tag.textContent || tag.innerHTML || ""}:`;
for (const key in tag.props) {
content += `${key}:${String(tag.props[key])},`;
}
return hashCode(content);
}
const p = (p2) => ({ keyValue: p2, metaKey: "property" });
const k = (p2) => ({ keyValue: p2 });
const MetaPackingSchema = {
appleItunesApp: {
unpack: {
entrySeparator: ", ",
resolve({ key, value }) {
return `${fixKeyCase(key)}=${value}`;
}
}
},
articleExpirationTime: p("article:expiration_time"),
articleModifiedTime: p("article:modified_time"),
articlePublishedTime: p("article:published_time"),
bookReleaseDate: p("book:release_date"),
charset: {
metaKey: "charset"
},
contentSecurityPolicy: {
unpack: {
entrySeparator: "; ",
resolve({ key, value }) {
return `${fixKeyCase(key)} ${value}`;
}
},
metaKey: "http-equiv"
},
contentType: {
metaKey: "http-equiv"
},
defaultStyle: {
metaKey: "http-equiv"
},
fbAppId: p("fb:app_id"),
msapplicationConfig: k("msapplication-Config"),
msapplicationTileColor: k("msapplication-TileColor"),
msapplicationTileImage: k("msapplication-TileImage"),
ogAudioSecureUrl: p("og:audio:secure_url"),
ogAudioUrl: p("og:audio"),
ogImageSecureUrl: p("og:image:secure_url"),
ogImageUrl: p("og:image"),
ogSiteName: p("og:site_name"),
ogVideoSecureUrl: p("og:video:secure_url"),
ogVideoUrl: p("og:video"),
profileFirstName: p("profile:first_name"),
profileLastName: p("profile:last_name"),
profileUsername: p("profile:username"),
refresh: {
metaKey: "http-equiv",
unpack: {
entrySeparator: ";",
resolve({ key, value }) {
if (key === "seconds")
return `${value}`;
}
}
},
robots: {
unpack: {
entrySeparator: ", ",
resolve({ key, value }) {
if (typeof value === "boolean")
return `${fixKeyCase(key)}`;
else
return `${fixKeyCase(key)}:${value}`;
}
}
},
xUaCompatible: {
metaKey: "http-equiv"
}
};
const openGraphNamespaces = /* @__PURE__ */ new Set([
"og",
"book",
"article",
"profile"
]);
function resolveMetaKeyType(key) {
const fKey = fixKeyCase(key);
const prefixIndex = fKey.indexOf(":");
if (openGraphNamespaces.has(fKey.substring(0, prefixIndex)))
return "property";
return MetaPackingSchema[key]?.metaKey || "name";
}
function resolveMetaKeyValue(key) {
return MetaPackingSchema[key]?.keyValue || fixKeyCase(key);
}
function fixKeyCase(key) {
const updated = key.replace(/([A-Z])/g, "-$1").toLowerCase();
const prefixIndex = updated.indexOf("-");
const fKey = updated.substring(0, prefixIndex);
if (fKey === "twitter" || openGraphNamespaces.has(fKey))
return key.replace(/([A-Z])/g, ":$1").toLowerCase();
return updated;
}
function changeKeyCasingDeep(input) {
if (Array.isArray(input)) {
return input.map((entry) => changeKeyCasingDeep(entry));
}
if (typeof input !== "object" || Array.isArray(input))
return input;
const output = {};
for (const key in input) {
if (!Object.prototype.hasOwnProperty.call(input, key)) {
continue;
}
output[fixKeyCase(key)] = changeKeyCasingDeep(input[key]);
}
return output;
}
function resolvePackedMetaObjectValue(value, key) {
const definition = MetaPackingSchema[key];
if (key === "refresh")
return `${value.seconds};url=${value.url}`;
return unpackToString(
changeKeyCasingDeep(value),
{
keyValueSeparator: "=",
entrySeparator: ", ",
resolve({ value: value2, key: key2 }) {
if (value2 === null)
return "";
if (typeof value2 === "boolean")
return `${key2}`;
},
...definition?.unpack
}
);
}
const ObjectArrayEntries = /* @__PURE__ */ new Set(["og:image", "og:video", "og:audio", "twitter:image"]);
function sanitize(input) {
const out = {};
for (const k2 in input) {
if (!Object.prototype.hasOwnProperty.call(input, k2)) {
continue;
}
const v = input[k2];
if (String(v) !== "false" && k2)
out[k2] = v;
}
return out;
}
function handleObjectEntry(key, v) {
const value = sanitize(v);
const fKey = fixKeyCase(key);
const attr = resolveMetaKeyType(fKey);
if (ObjectArrayEntries.has(fKey)) {
const input = {};
for (const k2 in value) {
if (!Object.prototype.hasOwnProperty.call(value, k2)) {
continue;
}
input[`${key}${k2 === "url" ? "" : `${k2[0].toUpperCase()}${k2.slice(1)}`}`] = value[k2];
}
return unpackMeta(input).sort((a, b) => (a[attr]?.length || 0) - (b[attr]?.length || 0));
}
return [{ [attr]: fKey, ...value }];
}
function unpackMeta(input) {
const extras = [];
const primitives = {};
for (const key in input) {
if (!Object.prototype.hasOwnProperty.call(input, key)) {
continue;
}
const value = input[key];
if (!Array.isArray(value)) {
if (typeof value === "object" && value) {
if (ObjectArrayEntries.has(fixKeyCase(key))) {
extras.push(...handleObjectEntry(key, value));
continue;
}
primitives[key] = sanitize(value);
} else {
primitives[key] = value;
}
continue;
}
for (const v of value) {
extras.push(...typeof v === "string" ? unpackMeta({ [key]: v }) : handleObjectEntry(key, v));
}
}
const meta = unpackToArray(primitives, {
key({ key }) {
return resolveMetaKeyType(key);
},
value({ key }) {
return key === "charset" ? "charset" : "content";
},
resolveKeyData({ key }) {
return resolveMetaKeyValue(key);
},
resolveValueData({ value, key }) {
if (value === null)
return "_null";
if (typeof value === "object")
return resolvePackedMetaObjectValue(value, key);
return typeof value === "number" ? value.toString() : value;
}
});
return [...extras, ...meta].map((m) => {
if (m.content === "_null")
m.content = null;
return m;
});
}
function packMeta(inputs) {
const mappedPackingSchema = Object.entries(MetaPackingSchema).map(([key, value]) => [key, value.keyValue]);
return packArray(inputs, {
key: ["name", "property", "httpEquiv", "http-equiv", "charset"],
value: ["content", "charset"],
resolveKey(k2) {
let key = mappedPackingSchema.filter((sk) => sk[1] === k2)?.[0]?.[0] || k2;
const replacer = (_, letter) => letter?.toUpperCase();
key = key.replace(/:([a-z])/g, replacer).replace(/-([a-z])/g, replacer);
return key;
}
});
}
function thenable(val, thenFn) {
if (val instanceof Promise) {
return val.then(thenFn);
}
return thenFn(val);
}
function normaliseTag(tagName, input, e, normalizedProps) {
const props = normalizedProps || normaliseProps(
// explicitly check for an object
// @ts-expect-error untyped
typeof input === "object" && typeof input !== "function" && !(input instanceof Promise) ? { ...input } : { [tagName === "script" || tagName === "noscript" || tagName === "style" ? "innerHTML" : "textContent"]: input },
tagName === "templateParams" || tagName === "titleTemplate"
);
if (props instanceof Promise) {
return props.then((val) => normaliseTag(tagName, input, e, val));
}
const tag = {
tag: tagName,
props
};
for (const k of TagConfigKeys) {
const val = tag.props[k] !== void 0 ? tag.props[k] : e[k];
if (val !== void 0) {
if (!(k === "innerHTML" || k === "textContent" || k === "children") || TagsWithInnerContent.has(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 normaliseStyleClassProps(key, v) {
const sep = key === "class" ? " " : ";";
if (v && typeof v === "object" && !Array.isArray(v)) {
v = Object.entries(v).filter(([, v2]) => v2).map(([k, v2]) => key === "style" ? `${k}:${v2}` : k);
}
return String(Array.isArray(v) ? v.join(sep) : v)?.split(sep).filter((c) => Boolean(c.trim())).join(sep);
}
function nestedNormaliseProps(props, virtual, keys, startIndex) {
for (let i = startIndex; i < keys.length; i += 1) {
const k = keys[i];
if (k === "class" || k === "style") {
props[k] = normaliseStyleClassProps(k, props[k]);
continue;
}
if (props[k] instanceof Promise) {
return props[k].then((val) => {
props[k] = val;
return nestedNormaliseProps(props, virtual, keys, i);
});
}
if (!virtual && !TagConfigKeys.has(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];
}
}
}
}
function normaliseProps(props, virtual = false) {
const resolvedProps = nestedNormaliseProps(props, virtual, Object.keys(props), 0);
if (resolvedProps instanceof Promise) {
return resolvedProps.then(() => props);
}
return props;
}
const TagEntityBits = 10;
function nestedNormaliseEntryTags(headTags, tagPromises, startIndex) {
for (let i = startIndex; i < tagPromises.length; i += 1) {
const tags = tagPromises[i];
if (tags instanceof Promise) {
return tags.then((val) => {
tagPromises[i] = val;
return nestedNormaliseEntryTags(headTags, tagPromises, i);
});
}
if (Array.isArray(tags)) {
headTags.push(...tags);
} else {
headTags.push(tags);
}
}
}
function normaliseEntryTags(e) {
const tagPromises = [];
const input = e.resolvedInput;
for (const k in input) {
if (!Object.prototype.hasOwnProperty.call(input, k)) {
continue;
}
const v = input[k];
if (v === void 0 || !ValidHeadTags.has(k)) {
continue;
}
if (Array.isArray(v)) {
for (const props of v) {
tagPromises.push(normaliseTag(k, props, e));
}
continue;
}
tagPromises.push(normaliseTag(k, v, e));
}
if (tagPromises.length === 0) {
return [];
}
const headTags = [];
return thenable(nestedNormaliseEntryTags(headTags, tagPromises, 0), () => headTags.map((t, i) => {
t._e = e._i;
e.mode && (t._m = e.mode);
t._p = (e._i << TagEntityBits) + i;
return t;
}));
}
const WhitelistAttributes = {
htmlAttrs: ["id", "class", "lang", "dir"],
bodyAttrs: ["id", "class"],
meta: ["id", "name", "property", "charset", "content"],
noscript: ["id", "textContent"],
script: ["id", "type", "textContent"],
link: ["id", "color", "crossorigin", "fetchpriority", "href", "hreflang", "imagesrcset", "imagesizes", "integrity", "media", "referrerpolicy", "rel", "sizes", "type"]
};
function acceptDataAttrs(value) {
const filtered = {};
Object.keys(value || {}).filter((a) => a.startsWith("data-")).forEach((a) => {
filtered[a] = value[a];
});
return filtered;
}
function whitelistSafeInput(input) {
const filtered = {};
Object.keys(input).forEach((key) => {
const tagValue = input[key];
if (!tagValue)
return;
switch (key) {
// always safe
case "title":
case "titleTemplate":
case "templateParams":
filtered[key] = tagValue;
break;
case "htmlAttrs":
case "bodyAttrs":
filtered[key] = acceptDataAttrs(tagValue);
WhitelistAttributes[key].forEach((a) => {
if (tagValue[a])
filtered[key][a] = tagValue[a];
});
break;
// meta is safe, except for http-equiv
case "meta":
if (Array.isArray(tagValue)) {
filtered[key] = tagValue.map((meta) => {
const safeMeta = acceptDataAttrs(meta);
WhitelistAttributes.meta.forEach((key2) => {
if (meta[key2])
safeMeta[key2] = meta[key2];
});
return safeMeta;
}).filter((meta) => Object.keys(meta).length > 0);
}
break;
// link tags we don't allow stylesheets, scripts, preloading, prerendering, prefetching, etc
case "link":
if (Array.isArray(tagValue)) {
filtered[key] = tagValue.map((meta) => {
const link = acceptDataAttrs(meta);
WhitelistAttributes.link.forEach((key2) => {
const val = meta[key2];
if (key2 === "rel" && (val === "stylesheet" || val === "canonical" || val === "modulepreload" || val === "prerender" || val === "preload" || val === "prefetch"))
return;
if (key2 === "href") {
if (val.includes("javascript:") || val.includes("data:"))
return;
link[key2] = val;
} else if (val) {
link[key2] = val;
}
});
return link;
}).filter((link) => Object.keys(link).length > 1 && !!link.rel);
}
break;
case "noscript":
if (Array.isArray(tagValue)) {
filtered[key] = tagValue.map((meta) => {
const noscript = acceptDataAttrs(meta);
WhitelistAttributes.noscript.forEach((key2) => {
if (meta[key2])
noscript[key2] = meta[key2];
});
return noscript;
}).filter((meta) => Object.keys(meta).length > 0);
}
break;
// we only allow JSON in scripts
case "script":
if (Array.isArray(tagValue)) {
filtered[key] = tagValue.map((script) => {
const safeScript = acceptDataAttrs(script);
WhitelistAttributes.script.forEach((s) => {
if (script[s]) {
if (s === "textContent") {
try {
const jsonVal = typeof script[s] === "string" ? JSON.parse(script[s]) : script[s];
safeScript[s] = JSON.stringify(jsonVal, null, 0);
} catch (e) {
}
} else {
safeScript[s] = script[s];
}
}
});
return safeScript;
}).filter((meta) => Object.keys(meta).length > 0);
}
break;
}
});
return filtered;
}
const NetworkEvents = /* @__PURE__ */ new Set(["onload", "onerror", "onabort", "onprogress", "onloadstart"]);
const ScriptNetworkEvents = /* @__PURE__ */ new Set(["onload", "onerror"]);
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) {
const priority = tag.tagPriority;
if (typeof priority === "number")
return priority;
let weight = 100;
if (tag.tag === "meta") {
if (tag.props["http-equiv"] === "content-security-policy")
weight = -30;
else if (tag.props.charset)
weight = -20;
else 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 (priority && priority in TAG_ALIASES) {
return weight + TAG_ALIASES[priority];
}
return weight;
}
const SortModifiers = [{ prefix: "before:", offset: -1 }, { prefix: "after:", offset: 1 }];
const allowedMetaProperties = ["name", "property", "http-equiv"];
function tagDedupeKey(tag) {
const { props, tag: tagName } = tag;
if (UniqueTags.has(tagName))
return tagName;
if (tagName === "link" && props.rel === "canonical")
return "canonical";
if (props.charset)
return "charset";
if (props.id) {
return `${tagName}:id:${props.id}`;
}
for (const n of allowedMetaProperties) {
if (props[n] !== void 0) {
return `${tagName}:${n}:${props[n]}`;
}
}
return false;
}
const sepSub = "%separator";
function sub(p, token, isJson = false) {
let val;
if (token === "s" || token === "pageTitle") {
val = p.pageTitle;
} else if (token.includes(".")) {
const dotIndex = token.indexOf(".");
val = p[token.substring(0, dotIndex)]?.[token.substring(dotIndex + 1)];
} else {
val = p[token];
}
if (val !== void 0) {
return isJson ? (val || "").replace(/"/g, '\\"') : val || "";
}
return void 0;
}
const sepSubRe = new RegExp(`${sepSub}(?:\\s*${sepSub})*`, "g");
function processTemplateParams(s, p, sep, isJson = false) {
if (typeof s !== "string" || !s.includes("%"))
return s;
let decoded = s;
try {
decoded = decodeURI(s);
} catch {
}
const tokens = decoded.match(/%\w+(?:\.\w+)?/g);
if (!tokens) {
return s;
}
const hasSepSub = s.includes(sepSub);
s = s.replace(/%\w+(?:\.\w+)?/g, (token) => {
if (token === sepSub || !tokens.includes(token)) {
return token;
}
const re = sub(p, token.slice(1), isJson);
return re !== void 0 ? re : token;
}).trim();
if (hasSepSub) {
if (s.endsWith(sepSub))
s = s.slice(0, -sepSub.length);
if (s.startsWith(sepSub))
s = s.slice(sepSub.length);
s = s.replace(sepSubRe, sep).trim();
}
return s;
}
function resolveTitleTemplate(template, title) {
if (template == null)
return title || null;
if (typeof template === "function")
return template(title);
return template;
}
export { HasElementTags, IsBrowser, NetworkEvents, ScriptNetworkEvents, SelfClosingTags, SortModifiers, TAG_ALIASES, TAG_WEIGHTS, TagConfigKeys, TagEntityBits, TagsWithInnerContent, UniqueTags, ValidHeadTags, asArray, composableNames, defineHeadPlugin, hashCode, hashTag, normaliseEntryTags, normaliseProps, normaliseStyleClassProps, normaliseTag, packMeta, processTemplateParams, resolveMetaKeyType, resolveMetaKeyValue, resolvePackedMetaObjectValue, resolveTitleTemplate, tagDedupeKey, tagWeight, thenable, unpackMeta, whitelistSafeInput };