bet-mcp

// src/serve-static.ts import { getMimeType } from "hono/utils/mime"; import { createReadStream, statSync, existsSync } from "fs"; import { join } from "path"; var COMPRESSIBLE_CONTENT_TYPE_REGEX = /^\s*(?:text\/[^;\s]+|application\/(?:javascript|json|xml|xml-dtd|ecmascript|dart|postscript|rtf|tar|toml|vnd\.dart|vnd\.ms-fontobject|vnd\.ms-opentype|wasm|x-httpd-php|x-javascript|x-ns-proxy-autoconfig|x-sh|x-tar|x-virtualbox-hdd|x-virtualbox-ova|x-virtualbox-ovf|x-virtualbox-vbox|x-virtualbox-vdi|x-virtualbox-vhd|x-virtualbox-vmdk|x-www-form-urlencoded)|font\/(?:otf|ttf)|image\/(?:bmp|vnd\.adobe\.photoshop|vnd\.microsoft\.icon|vnd\.ms-dds|x-icon|x-ms-bmp)|message\/rfc822|model\/gltf-binary|x-shader\/x-fragment|x-shader\/x-vertex|[^;\s]+?\+(?:json|text|xml|yaml))(?:[;\s]|$)/i; var ENCODINGS = { br: ".br", zstd: ".zst", gzip: ".gz" }; var ENCODINGS_ORDERED_KEYS = Object.keys(ENCODINGS); var createStreamBody = (stream) => { const body = new ReadableStream({ start(controller) { stream.on("data", (chunk) => { controller.enqueue(chunk); }); stream.on("error", (err) => { controller.error(err); }); stream.on("end", () => { controller.close(); }); }, cancel() { stream.destroy(); } }); return body; }; var getStats = (path) => { let stats; try { stats = statSync(path); } catch { } return stats; }; var serveStatic = (options = { root: "" }) => { const root = options.root || ""; const optionPath = options.path; if (root !== "" && !existsSync(root)) { console.error(`serveStatic: root path '${root}' is not found, are you sure it's correct?`); } return async (c, next) => { if (c.finalized) { return next(); } let filename; if (optionPath) { filename = optionPath; } else { try { filename = decodeURIComponent(c.req.path); if (/(?:^|[\/\\])\.\.(?:$|[\/\\])/.test(filename)) { throw new Error(); } } catch { await options.onNotFound?.(c.req.path, c); return next(); } } let path = join( root, !optionPath && options.rewriteRequestPath ? options.rewriteRequestPath(filename, c) : filename ); let stats = getStats(path); if (stats && stats.isDirectory()) { const indexFile = options.index ?? "index.html"; path = join(path, indexFile); stats = getStats(path); } if (!stats) { await options.onNotFound?.(path, c); return next(); } const mimeType = getMimeType(path); c.header("Content-Type", mimeType || "application/octet-stream"); if (options.precompressed && (!mimeType || COMPRESSIBLE_CONTENT_TYPE_REGEX.test(mimeType))) { const acceptEncodingSet = new Set( c.req.header("Accept-Encoding")?.split(",").map((encoding) => encoding.trim()) ); for (const encoding of ENCODINGS_ORDERED_KEYS) { if (!acceptEncodingSet.has(encoding)) { continue; } const precompressedStats = getStats(path + ENCODINGS[encoding]); if (precompressedStats) { c.header("Content-Encoding", encoding); c.header("Vary", "Accept-Encoding", { append: true }); stats = precompressedStats; path = path + ENCODINGS[encoding]; break; } } } let result; const size = stats.size; const range = c.req.header("range") || ""; if (c.req.method == "HEAD" || c.req.method == "OPTIONS") { c.header("Content-Length", size.toString()); c.status(200); result = c.body(null); } else if (!range) { c.header("Content-Length", size.toString()); result = c.body(createStreamBody(createReadStream(path)), 200); } else { c.header("Accept-Ranges", "bytes"); c.header("Date", stats.birthtime.toUTCString()); const parts = range.replace(/bytes=/, "").split("-", 2); const start = parseInt(parts[0], 10) || 0; let end = parseInt(parts[1], 10) || size - 1; if (size < end - start + 1) { end = size - 1; } const chunksize = end - start + 1; const stream = createReadStream(path, { start, end }); c.header("Content-Length", chunksize.toString()); c.header("Content-Range", `bytes ${start}-${end}/${stats.size}`); result = c.body(createStreamBody(stream), 206); } await options.onFound?.(path, c); return result; }; }; export { serveStatic };