File size: 5,323 Bytes
a5d718a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | // src/serve-static.ts
import { getMimeType } from "hono/utils/mime";
import { createReadStream, statSync, existsSync } from "fs";
import { join } from "path";
import { versions } from "process";
import { Readable } from "stream";
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]|$)/i;
var ENCODINGS = {
br: ".br",
zstd: ".zst",
gzip: ".gz"
};
var ENCODINGS_ORDERED_KEYS = Object.keys(ENCODINGS);
var pr54206Applied = () => {
const [major, minor] = versions.node.split(".").map((component) => parseInt(component));
return major >= 23 || major === 22 && minor >= 7 || major === 20 && minor >= 18;
};
var useReadableToWeb = pr54206Applied();
var createStreamBody = (stream) => {
if (useReadableToWeb) {
return Readable.toWeb(stream);
}
const body = new ReadableStream({
start(controller) {
stream.on("data", (chunk) => {
controller.enqueue(chunk);
});
stream.on("error", (err) => {
controller.error(err);
});
stream.on("end", () => {
controller.close();
});
},
cancel() {
stream.destroy();
}
});
return body;
};
var getStats = (path) => {
let stats;
try {
stats = statSync(path);
} catch {
}
return stats;
};
var tryDecode = (str, decoder) => {
try {
return decoder(str);
} catch {
return str.replace(/(?:%[0-9A-Fa-f]{2})+/g, (match) => {
try {
return decoder(match);
} catch {
return match;
}
});
}
};
var tryDecodeURI = (str) => tryDecode(str, decodeURI);
var serveStatic = (options = { root: "" }) => {
const root = options.root || "";
const optionPath = options.path;
if (root !== "" && !existsSync(root)) {
console.error(`serveStatic: root path '${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 = tryDecodeURI(c.req.path);
if (/(?:^|[\/\\])\.{1,2}(?:$|[\/\\])|[\/\\]{2,}/.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
};
|