akm-cli
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akm (Agent Knowledge Manager) — a portable, local-first capability library for AI agents. Discover, load, share, and improve reusable skills, scripts, workflows, and knowledge across any shell-capable coding agent, including Claude Code, OpenCode, and Cur
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JavaScript
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
import { parse } from "node-html-parser";
import { ResponseTooLargeError, readBodyWithByteCap } from "../../core/common.js";
import { warn } from "../../core/warn.js";
import { avoidReservedBasename, coerceString, escapeMarkdownStructure } from "./fetcher-util.js";
import { fetchGuardedResponse, fetchPinnedJson } from "./host-guard.js";
import rssFetcher from "./rss.js";
/**
* X / Twitter snapshot fetcher.
*
* Profiles retain the API-v2 -> RSS-template strategy. Posts first inspect the
* public page for an embedded Article, then use exact API-v2 lookup when a token
* is available, and finally use public Open Graph post text. Public page code is
* never executed; Article fields are read as bounded JSON-compatible strings.
*/
const X_HOSTS = new Set(["x.com", "www.x.com", "twitter.com", "www.twitter.com"]);
const X_API_BASE = "https://api.x.com/2";
const DEFAULT_TWEET_LIMIT = 50;
const X_BYTE_CAP = 4 * 1024 * 1024;
const X_BODY_TIMEOUT_MS = 30_000;
const X_PAGE_BYTE_CAP = 5 * 1024 * 1024;
/** Reserved x.com paths that are not user profiles. */
const RESERVED_X_PATHS = new Set([
"home",
"explore",
"notifications",
"messages",
"search",
"settings",
"i",
"intent",
"share",
"compose",
"login",
"signup",
"about",
"tos",
"privacy",
]);
function validXUsername(value) {
const username = value?.trim().replace(/^@/, "") ?? "";
if (!/^[A-Za-z0-9_]{1,15}$/.test(username))
return null;
if (RESERVED_X_PATHS.has(username.toLowerCase()))
return null;
return username;
}
function validXId(value) {
return value && /^[0-9]{1,19}$/.test(value) ? value : null;
}
export function extractXResource(url) {
if (!X_HOSTS.has(url.hostname.toLowerCase()))
return null;
const segments = url.pathname.split("/").filter(Boolean);
if (segments.length === 1) {
const username = validXUsername(segments[0]);
return username ? { kind: "profile", username } : null;
}
if (segments.length === 3 && ["status", "statuses"].includes(segments[1]?.toLowerCase() ?? "")) {
const usernameHint = validXUsername(segments[0]);
const postId = validXId(segments[2]);
if (usernameHint && postId)
return { kind: "status", postId, usernameHint };
}
if (segments[0]?.toLowerCase() === "i") {
const resourceType = segments[1]?.toLowerCase();
const id = validXId(segments[2]);
if (segments.length === 3 && resourceType === "status" && id)
return { kind: "status", postId: id };
if (segments.length === 3 && resourceType === "article" && id)
return { kind: "article", articleId: id };
const webPostId = validXId(segments[3]);
if (segments.length === 4 && resourceType === "web" && segments[2]?.toLowerCase() === "status" && webPostId) {
return { kind: "status", postId: webPostId };
}
}
return null;
}
export function extractXUsername(url) {
const resource = extractXResource(url);
return resource?.kind === "profile" ? resource.username : null;
}
/** Secret ref consulted when `X_BEARER_TOKEN` is not in the environment. */
export const X_BEARER_TOKEN_SECRET_REF = "secrets/x-bearer-token";
export function resolveXBearerToken(context) {
const fromEnv = process.env.X_BEARER_TOKEN?.trim();
if (fromEnv)
return fromEnv;
try {
return context?.resolveSecret?.(X_BEARER_TOKEN_SECRET_REF)?.trim() || null;
}
catch {
return null;
}
}
const MAX_RELAY_OBJECT_CANDIDATES = 16;
const EXECUTABLE_SCRIPT_TYPES = new Set([
"module",
"application/ecmascript",
"application/javascript",
"application/x-ecmascript",
"application/x-javascript",
"text/ecmascript",
"text/javascript",
"text/javascript1.0",
"text/javascript1.1",
"text/javascript1.2",
"text/javascript1.3",
"text/javascript1.4",
"text/javascript1.5",
"text/jscript",
"text/livescript",
"text/x-ecmascript",
"text/x-javascript",
]);
const EXECUTABLE_SCRIPT_LANGUAGES = new Set([
"ecmascript",
"javascript",
"javascript1.0",
"javascript1.1",
"javascript1.2",
"javascript1.3",
"javascript1.4",
"javascript1.5",
"jscript",
"livescript",
]);
const CONTROL_CONDITION_KEYWORDS = new Set(["catch", "for", "if", "switch", "while", "with"]);
const REGEX_PREFIX_KEYWORDS = new Set([
"await",
"case",
"delete",
"do",
"else",
"in",
"instanceof",
"new",
"of",
"return",
"throw",
"typeof",
"void",
"yield",
]);
function closesControlCondition(source, code, closeIndex) {
let depth = 0;
for (let i = closeIndex; i >= 0; i--) {
if (code[i] !== 1)
continue;
const char = source[i] ?? "";
if (char === ")")
depth += 1;
else if (char === "(") {
depth -= 1;
if (depth !== 0)
continue;
let end = i - 1;
while (end >= 0 && (code[end] !== 1 || /\s/.test(source[end] ?? "")))
end -= 1;
let start = end;
while (start >= 0 && code[start] === 1 && /[A-Za-z]/.test(source[start] ?? ""))
start -= 1;
return CONTROL_CONDITION_KEYWORDS.has(source.slice(start + 1, end + 1));
}
}
return false;
}
function startsRegexLiteral(source, code, slashIndex) {
let previous = slashIndex - 1;
while (previous >= 0 && (code[previous] !== 1 || /\s/.test(source[previous] ?? "")))
previous -= 1;
if (previous < 0)
return true;
const previousChar = source[previous] ?? "";
if (previousChar === ")" && closesControlCondition(source, code, previous))
return true;
if (previousChar === "}")
return true;
if (/[([{:;,=!?&|+*%^~<>-]/.test(previousChar))
return true;
if (!/[A-Za-z]/.test(previousChar))
return false;
let start = previous;
while (start > 0 && /[A-Za-z]/.test(source[start - 1] ?? ""))
start -= 1;
return REGEX_PREFIX_KEYWORDS.has(source.slice(start, previous + 1));
}
function executableCodeMask(source) {
const code = new Uint8Array(source.length);
let quote = "";
let escaped = false;
let lineComment = false;
let blockComment = false;
let regex = false;
let regexClass = false;
for (let i = 0; i < source.length; i++) {
const char = source[i] ?? "";
const next = source[i + 1] ?? "";
if (lineComment) {
if (char === "\n" || char === "\r") {
lineComment = false;
code[i] = 1;
}
continue;
}
if (regex) {
if (escaped)
escaped = false;
else if (char === "\\")
escaped = true;
else if (char === "[")
regexClass = true;
else if (char === "]")
regexClass = false;
else if (char === "/" && !regexClass)
regex = false;
continue;
}
if (blockComment) {
if (char === "*" && next === "/") {
blockComment = false;
i += 1;
}
continue;
}
if (quote) {
if (escaped)
escaped = false;
else if (char === "\\")
escaped = true;
else if (char === quote)
quote = "";
continue;
}
if (char === "/" && next === "/") {
lineComment = true;
i += 1;
continue;
}
if (char === "/" && next === "*") {
blockComment = true;
i += 1;
continue;
}
if (source.startsWith("<!--", i)) {
lineComment = true;
i += 3;
continue;
}
if (source.startsWith("-->", i) && /^\s*$/.test(source.slice(source.lastIndexOf("\n", i - 1) + 1, i))) {
lineComment = true;
i += 2;
continue;
}
if (char === "/" && startsRegexLiteral(source, code, i)) {
regex = true;
regexClass = false;
continue;
}
// Relay state uses JSON-compatible strings, never template literals. Mask
// the remainder rather than partially interpreting nested `${...}` code.
if (char === "`")
break;
if (char === '"' || char === "'") {
quote = char;
continue;
}
code[i] = 1;
}
return code;
}
function serializedScriptPayload(html) {
let root;
try {
root = parse(html, { comment: false });
}
catch {
return null;
}
const scripts = [];
for (const script of root.querySelectorAll("script")) {
if (script.hasAttribute("src") || script.hasAttribute("nomodule"))
continue;
const scriptType = (script.getAttribute("type") ?? "").trim().toLowerCase();
if (scriptType && !EXECUTABLE_SCRIPT_TYPES.has(scriptType))
continue;
const scriptLanguage = (script.getAttribute("language") ?? "").trim().toLowerCase();
if (!scriptType && scriptLanguage && !EXECUTABLE_SCRIPT_LANGUAGES.has(scriptLanguage))
continue;
let parent = script.parentNode;
let inert = false;
while (parent && "tagName" in parent) {
const tagName = typeof parent.tagName === "string" ? parent.tagName.toLowerCase() : "";
if ([
"iframe",
"math",
"noembed",
"noframes",
"noscript",
"plaintext",
"style",
"svg",
"template",
"textarea",
"title",
"xmp",
].includes(tagName)) {
inert = true;
break;
}
parent = parent.parentNode;
}
if (inert)
continue;
const body = script.innerHTML;
if (body.includes("$R[") || body.includes('__typename:"ArticleEntity"')) {
scripts.push({ source: body, code: executableCodeMask(body) });
}
}
if (scripts.length === 0)
return null;
const separator = "\0;\n";
const source = scripts.map((script) => script.source).join(separator);
const code = new Uint8Array(source.length);
let offset = 0;
for (const [index, script] of scripts.entries()) {
code.set(script.code, offset);
offset += script.source.length;
if (index < scripts.length - 1) {
code.fill(1, offset, offset + separator.length);
offset += separator.length;
}
}
return { source, code };
}
async function xApiJson(url, token, context) {
return (await fetchPinnedJson(url, {
headers: {
Accept: "application/json",
Authorization: `Bearer ${token}`,
"User-Agent": "akm-cli x fetcher",
},
byteCap: X_BYTE_CAP,
bodyTimeoutMs: X_BODY_TIMEOUT_MS,
timeoutMs: context.timeoutMs,
signal: context.signal,
}));
}
async function fetchProfileViaApi(username, token, context) {
const lookup = await xApiJson(`${X_API_BASE}/users/by/username/${encodeURIComponent(username)}`, token, context);
const userId = coerceString(lookup?.data?.id);
if (!userId)
return null;
const timeline = await xApiJson(`${X_API_BASE}/users/${encodeURIComponent(userId)}/tweets` +
`?max_results=${DEFAULT_TWEET_LIMIT}&tweet.fields=created_at`, token, context);
const data = timeline?.data;
if (!Array.isArray(data))
return null;
return data.map((raw) => {
const tweet = (raw ?? {});
return {
id: validXId(coerceString(tweet.id)) ?? "",
text: coerceString(tweet.text),
createdAt: toIsoDate(coerceString(tweet.created_at)),
};
});
}
async function fetchPostViaApi(postId, usernameHint, token, context) {
const params = new URLSearchParams({
"tweet.fields": "author_id,created_at,note_tweet",
expansions: "author_id",
"user.fields": "username",
});
const response = await xApiJson(`${X_API_BASE}/tweets/${encodeURIComponent(postId)}?${params}`, token, context);
const data = response?.data;
if (!data)
return null;
if (coerceString(data.id) !== postId)
return null;
const noteTweet = data.note_tweet;
const text = coerceString(noteTweet?.text) || coerceString(data.text);
if (!text)
return null;
const authorId = coerceString(data.author_id);
const users = response?.includes?.users;
const author = Array.isArray(users)
? users.find((raw) => coerceString(raw?.id) === authorId)
: undefined;
const username = validXUsername(coerceString(author?.username)) || usernameHint || "";
return {
id: postId,
text,
createdAt: toIsoDate(coerceString(data.created_at)),
username,
};
}
function toIsoDate(value) {
if (!value)
return "";
const parsed = new Date(value);
return Number.isNaN(parsed.getTime()) ? "" : parsed.toISOString();
}
function renderProfileMarkdown(username, tweets) {
const sections = [];
for (const tweet of tweets) {
if (!tweet.text)
continue;
const when = tweet.createdAt ? new Date(tweet.createdAt) : null;
const iso = when && !Number.isNaN(when.getTime()) ? when.toISOString() : "";
sections.push(`## ${iso || "(undated)"}`, "", escapeXPlainText(tweet.text), "");
if (tweet.id)
sections.push(`https://x.com/${username}/status/${tweet.id}`, "");
}
return sections.join("\n").trimEnd();
}
function readJsonStringAt(value, quoteIndex) {
if (value[quoteIndex] !== '"')
return null;
let escaped = false;
for (let i = quoteIndex + 1; i < value.length; i++) {
const char = value[i];
if (escaped) {
escaped = false;
continue;
}
if (char === "\\") {
escaped = true;
continue;
}
if (char !== '"')
continue;
try {
const parsed = JSON.parse(value.slice(quoteIndex, i + 1));
return typeof parsed === "string" ? { value: parsed, end: i + 1 } : null;
}
catch {
return null;
}
}
return null;
}
function readSerializedObjectAt(payload, openIndex) {
if (payload.source[openIndex] !== "{" || payload.code[openIndex] !== 1)
return null;
let depth = 0;
for (let i = openIndex; i < payload.source.length; i++) {
if (payload.code[i] !== 1)
continue;
const char = payload.source[i] ?? "";
if (char === "\0")
return null;
if (char === "{")
depth += 1;
else if (char === "}") {
depth -= 1;
if (depth === 0) {
return {
start: openIndex,
end: i + 1,
source: payload.source.slice(openIndex, i + 1),
code: payload.code.slice(openIndex, i + 1),
};
}
}
}
return null;
}
function isRelayAssignment(payload, assignmentIndex) {
if (payload.code[assignmentIndex] !== 1 || payload.code[assignmentIndex + 1] !== 1)
return false;
const prefixStart = Math.max(0, assignmentIndex - 40);
const match = /\$R\[\d+\]$/.exec(payload.source.slice(prefixStart, assignmentIndex));
if (!match)
return false;
let boundaryIndex = prefixStart + match.index - 1;
while (boundaryIndex >= 0 && (payload.code[boundaryIndex] !== 1 || /\s/.test(payload.source[boundaryIndex] ?? ""))) {
boundaryIndex -= 1;
}
return boundaryIndex < 0 || /[:,;=({[]/.test(payload.source[boundaryIndex] ?? "");
}
function objectContaining(payload, markerIndex) {
let assignmentIndex = payload.source.lastIndexOf("={", markerIndex);
while (assignmentIndex >= 0) {
if (isRelayAssignment(payload, assignmentIndex)) {
const object = readSerializedObjectAt(payload, assignmentIndex + 1);
if (object && object.end > markerIndex)
return object;
}
assignmentIndex = payload.source.lastIndexOf("={", assignmentIndex - 1);
}
return null;
}
function topLevelPropertyValueIndexes(object, property) {
const indexes = [];
let depth = 0;
for (let i = 0; i < object.source.length; i++) {
if (object.code[i] !== 1)
continue;
const char = object.source[i] ?? "";
if (char === "{") {
depth += 1;
continue;
}
if (char === "}") {
depth -= 1;
continue;
}
if (depth !== 1 || !object.source.startsWith(property, i))
continue;
let beforeIndex = i - 1;
while (beforeIndex >= 0 && (object.code[beforeIndex] !== 1 || /\s/.test(object.source[beforeIndex] ?? ""))) {
beforeIndex -= 1;
}
const before = object.source[beforeIndex];
if (before !== "{" && before !== ",")
continue;
let cursor = i + property.length;
while (/\s/.test(object.source[cursor] ?? ""))
cursor += 1;
if (object.source[cursor] !== ":" || object.code[cursor] !== 1)
continue;
indexes.push(cursor + 1);
}
return indexes;
}
function nextExecutableIndex(object, from) {
for (let i = from; i < object.source.length; i++) {
if (object.code[i] === 1 && !/\s/.test(object.source[i] ?? ""))
return i;
}
return -1;
}
function topLevelStringProperty(object, property) {
let valueIndex = topLevelPropertyValueIndexes(object, property).at(-1) ?? -1;
if (valueIndex < 0)
return "";
while (/\s/.test(object.source[valueIndex] ?? ""))
valueIndex += 1;
const parsed = readJsonStringAt(object.source, valueIndex);
if (!parsed)
return "";
const delimiterIndex = nextExecutableIndex(object, parsed.end);
if (delimiterIndex < 0 || (object.source[delimiterIndex] !== "," && object.source[delimiterIndex] !== "}"))
return "";
return parsed.value;
}
function topLevelObjectProperty(object, property) {
const valueIndex = topLevelPropertyValueIndexes(object, property).at(-1) ?? -1;
if (valueIndex < 0)
return null;
let openIndex = -1;
for (let i = valueIndex; i < object.source.length; i++) {
if (object.code[i] !== 1)
continue;
if (object.source[i] === ",")
return null;
if (object.source[i] === "{") {
openIndex = i;
break;
}
}
if (openIndex < 0)
return null;
return readSerializedObjectAt(object, openIndex);
}
function findObjectById(payload, id) {
if (!/^[A-Za-z0-9_:+/=-]{1,512}$/.test(id))
return null;
const marker = `__id:"${id}"`;
let from = 0;
let found = null;
let candidates = 0;
while (from < payload.source.length) {
const index = payload.source.indexOf(marker, from);
if (index < 0)
break;
if (payload.code[index] !== 1) {
from = index + marker.length;
continue;
}
const object = objectContaining(payload, index);
if (object) {
candidates += 1;
if (candidates > MAX_RELAY_OBJECT_CANDIDATES)
return null;
if (topLevelStringProperty(object, "__id") === id) {
if (found && found.start !== object.start)
return null;
found = object;
}
}
from = index + marker.length;
}
return found;
}
function articleFromObject(object) {
if (topLevelStringProperty(object, "__typename") !== "ArticleEntity")
return null;
const body = topLevelStringProperty(object, "plain_text").trim();
if (!body)
return null;
return {
title: topLevelStringProperty(object, "title").replace(/\s+/g, " ").trim(),
body,
restId: topLevelStringProperty(object, "rest_id"),
};
}
function referencedObject(payload, object, property) {
const reference = topLevelObjectProperty(object, property);
const id = reference ? topLevelStringProperty(reference, "__ref") : "";
return id ? findObjectById(payload, id) : null;
}
function serializedArticles(payload) {
const marker = '__typename:"ArticleEntity"';
const seen = new Set();
const articles = [];
let from = 0;
let candidates = 0;
while (from < payload.source.length) {
const index = payload.source.indexOf(marker, from);
if (index < 0)
break;
if (payload.code[index] !== 1) {
from = index + marker.length;
continue;
}
const object = objectContaining(payload, index);
if (object && !seen.has(object.start)) {
candidates += 1;
if (candidates > MAX_RELAY_OBJECT_CANDIDATES)
return [];
seen.add(object.start);
const article = articleFromObject(object);
if (article)
articles.push(article);
}
from = index + marker.length;
}
return articles;
}
function articleByRestId(payload, articleId) {
const marker = `rest_id:"${articleId}"`;
let from = 0;
let found = null;
let candidates = 0;
while (from < payload.source.length) {
const index = payload.source.indexOf(marker, from);
if (index < 0)
break;
if (payload.code[index] !== 1) {
from = index + marker.length;
continue;
}
const object = objectContaining(payload, index);
if (object) {
candidates += 1;
if (candidates > MAX_RELAY_OBJECT_CANDIDATES)
return null;
}
const article = object ? articleFromObject(object) : null;
if (article?.restId === articleId) {
if (found)
return null;
found = article;
}
from = index + marker.length;
}
return found;
}
export function extractPublicXArticle(html, target) {
const payload = serializedScriptPayload(html);
if (!payload)
return null;
let article;
if (target?.articleId) {
article = articleByRestId(payload, target.articleId) ?? undefined;
}
else if (target?.postId) {
const encodedId = Buffer.from(`Tweet:${target.postId}`).toString("base64");
const tweetArticle = findObjectById(payload, `client:${encodedId}:article`);
const articleResults = tweetArticle ? referencedObject(payload, tweetArticle, "article_results") : null;
const articleObject = articleResults ? referencedObject(payload, articleResults, "result") : null;
article = articleObject ? (articleFromObject(articleObject) ?? undefined) : undefined;
}
else {
const articles = serializedArticles(payload);
if (articles.length === 1)
article = articles[0];
}
return article ? { title: article.title, body: article.body } : null;
}
function escapeXPlainText(value) {
const inlineSafe = value
.replace(/\r\n?/g, "\n")
.replace(/\\/g, "\\\\")
.replace(/([[\]`])/g, "\\$1")
.replace(/<(?=[a-zA-Z/!?])/g, "<");
return escapeMarkdownStructure(inlineSafe);
}
function metaContent(root, name) {
for (const meta of root.querySelectorAll("meta")) {
const key = (meta.getAttribute("property") ?? meta.getAttribute("name") ?? "").toLowerCase();
if (key === name)
return meta.getAttribute("content")?.trim() ?? "";
}
return "";
}
function targetFullText(html, postId) {
const payload = serializedScriptPayload(html);
if (!payload)
return "";
const encodedId = Buffer.from(`Tweet:${postId}`).toString("base64");
const details = findObjectById(payload, `client:${encodedId}:details`);
return details ? topLevelStringProperty(details, "full_text") : "";
}
function publicPostFromHtml(html, postId, usernameHint) {
let root;
try {
root = parse(html, { comment: false });
}
catch {
return null;
}
const title = metaContent(root, "og:title");
const titleUsername = title.match(/\(@([A-Za-z0-9_]{1,15})\)/)?.[1] ?? "";
const text = (titleUsername ? metaContent(root, "og:description") : "") || targetFullText(html, postId);
if (!text.trim())
return null;
const username = titleUsername || usernameHint || "";
return { id: postId, text: text.trim(), createdAt: "", username };
}
async function fetchPublicXHtml(url, context) {
try {
const fetched = await fetchGuardedResponse(url.toString(), {
headers: { Accept: "text/html, application/xhtml+xml", "User-Agent": "akm-cli x fetcher" },
signal: context.signal,
}, { timeoutMs: context.timeoutMs, retries: 1, allowPrivateHosts: context.allowPrivateHosts });
const { response } = fetched;
if (!response.ok) {
await response.body?.cancel().catch(() => undefined);
return null;
}
const html = await readBodyWithByteCap(response, X_PAGE_BYTE_CAP, {
bodyTimeoutMs: X_BODY_TIMEOUT_MS,
signal: context.signal,
});
return { html, finalUrl: fetched.finalUrl };
}
catch (error) {
if (context.signal?.aborted)
throw error;
if (error instanceof ResponseTooLargeError)
return null;
return null;
}
}
function postSnapshot(post) {
const postId = validXId(post.id);
if (!postId)
throw new Error("X API returned an invalid post id");
const username = post.username || "unknown";
const canonicalUrl = post.username
? `https://x.com/${post.username}/status/${postId}`
: `https://x.com/i/status/${postId}`;
const markdown = [escapeXPlainText(post.text), post.createdAt ? `\n${post.createdAt}` : ""]
.filter(Boolean)
.join("\n");
return {
url: canonicalUrl,
title: post.username ? `X post by @${post.username}` : `X post ${postId}`,
markdown,
preferredName: avoidReservedBasename(`x/${username}/status/${postId}`),
tags: ["x", "twitter", "social", "post"],
};
}
function articleSnapshot(article, resource, usernameHint) {
const id = resource.kind === "article" ? resource.articleId : resource.postId;
const url = resource.kind === "article"
? `https://x.com/i/article/${resource.articleId}`
: usernameHint
? `https://x.com/${usernameHint}/status/${resource.postId}`
: `https://x.com/i/status/${resource.postId}`;
const preferredName = resource.kind === "article"
? `x/article/${resource.articleId}`
: usernameHint
? `x/${usernameHint}/status/${resource.postId}`
: `x/status/${resource.postId}`;
return {
url,
title: article.title || `X Article ${id}`,
markdown: escapeXPlainText(article.body),
preferredName: avoidReservedBasename(preferredName),
tags: ["x", "twitter", "social", "article"],
};
}
/** Build the RSS fallback URL from a template containing `{username}`. */
export function buildXRssUrl(template, username) {
const raw = template?.trim();
if (!raw)
return null;
if (!raw.includes("{username}")) {
warn('[akm] x-profile: X_RSS_TEMPLATE must contain the "{username}" placeholder; ignoring it.');
return null;
}
try {
const url = new URL(raw.replaceAll("{username}", encodeURIComponent(username)));
if (url.protocol !== "http:" && url.protocol !== "https:")
return null;
return url;
}
catch {
return null;
}
}
async function fetchProfile(username, context) {
const token = resolveXBearerToken(context);
if (token) {
try {
const tweets = await fetchProfileViaApi(username, token, context);
const markdown = tweets ? renderProfileMarkdown(username, tweets) : "";
if (markdown) {
return {
url: `https://x.com/${username}`,
title: `X — @${username}`,
markdown,
preferredName: avoidReservedBasename(`x/${username}`),
tags: ["x", "twitter", "social"],
};
}
}
catch (error) {
if (context.signal?.aborted)
throw error;
}
}
const rssUrl = buildXRssUrl(process.env.X_RSS_TEMPLATE, username);
if (rssUrl) {
const snapshot = await rssFetcher.fetch(rssUrl, context);
if (snapshot) {
return {
...snapshot,
url: `https://x.com/${username}`,
title: `X — @${username}`,
preferredName: avoidReservedBasename(`x/${username}`),
tags: ["x", "twitter", "social"],
};
}
}
warn("[akm] x-profile: no content for @%s. Set X_BEARER_TOKEN, or store the token as the " +
"secrets/x-bearer-token akm secret, or set X_RSS_TEMPLATE to an RSS bridge URL containing {username}.", username);
return null;
}
const xFetcher = {
name: "x",
matches(url) {
return extractXResource(url) !== null;
},
async fetch(url, context) {
const resource = extractXResource(url);
if (!resource)
return null;
if (resource.kind === "profile")
return fetchProfile(resource.username, context);
const publicUrl = resource.kind === "status"
? new URL(resource.usernameHint
? `https://x.com/${resource.usernameHint}/status/${resource.postId}`
: `https://x.com/i/status/${resource.postId}`)
: url;
const publicPage = await fetchPublicXHtml(publicUrl, context);
let html = null;
let resolvedResource = resource;
if (publicPage) {
const finalResource = extractXResource(new URL(publicPage.finalUrl));
if ((resource.kind === "status" && finalResource?.kind === "status" && finalResource.postId === resource.postId) ||
(resource.kind === "article" &&
finalResource?.kind === "article" &&
finalResource.articleId === resource.articleId)) {
resolvedResource = finalResource;
html = publicPage.html;
}
}
if (html) {
const article = extractPublicXArticle(html, resource.kind === "status" ? { postId: resource.postId } : { articleId: resource.articleId });
if (article) {
return articleSnapshot(article, resolvedResource, resolvedResource.kind === "status" ? resolvedResource.usernameHint : undefined);
}
}
if (resource.kind === "article")
return null;
const token = resolveXBearerToken(context);
if (token) {
try {
const post = await fetchPostViaApi(resource.postId, resolvedResource.kind === "status" ? resolvedResource.usernameHint : resource.usernameHint, token, context);
if (post)
return postSnapshot(post);
}
catch (error) {
if (context.signal?.aborted)
throw error;
}
}
const publicPost = html
? publicPostFromHtml(html, resource.postId, resolvedResource.kind === "status" ? resolvedResource.usernameHint : resource.usernameHint)
: null;
return publicPost ? postSnapshot(publicPost) : null;
},
};
export default xFetcher;