libarchive.js
Version:
extract/create archive files in browser/nodejs, libarchive port in wasm
1,576 lines (1,575 loc) • 134 kB
JavaScript
var libarchive = (() => {
var _scriptDir = import.meta.url;
return async function (moduleArg = {}) {
var Module = moduleArg;
var readyPromiseResolve, readyPromiseReject;
Module["ready"] = new Promise((resolve, reject) => {
readyPromiseResolve = resolve;
readyPromiseReject = reject;
});
var moduleOverrides = Object.assign({}, Module);
var arguments_ = [];
var thisProgram = "./this.program";
var quit_ = (status, toThrow) => {
throw toThrow;
};
var ENVIRONMENT_IS_WEB = typeof window == "object";
var ENVIRONMENT_IS_WORKER = typeof importScripts == "function";
var ENVIRONMENT_IS_NODE =
typeof process == "object" &&
typeof process.versions == "object" &&
typeof process.versions.node == "string";
var scriptDirectory = "";
function locateFile(path) {
if (Module["locateFile"]) {
return Module["locateFile"](path, scriptDirectory);
}
return scriptDirectory + path;
}
var read_, readAsync, readBinary;
if (ENVIRONMENT_IS_NODE) {
const { createRequire: createRequire } = await import("module");
var require = createRequire(import.meta.url);
var fs = require("fs");
var nodePath = require("path");
if (ENVIRONMENT_IS_WORKER) {
scriptDirectory = nodePath.dirname(scriptDirectory) + "/";
} else {
scriptDirectory = require("url").fileURLToPath(
new URL("./", import.meta.url),
);
}
read_ = (filename, binary) => {
filename = isFileURI(filename)
? new URL(filename)
: nodePath.normalize(filename);
return fs.readFileSync(filename, binary ? undefined : "utf8");
};
readBinary = (filename) => {
var ret = read_(filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret);
}
return ret;
};
readAsync = (filename, onload, onerror, binary = true) => {
filename = isFileURI(filename)
? new URL(filename)
: nodePath.normalize(filename);
fs.readFile(filename, binary ? undefined : "utf8", (err, data) => {
if (err) onerror(err);
else onload(binary ? data.buffer : data);
});
};
if (!Module["thisProgram"] && process.argv.length > 1) {
thisProgram = process.argv[1].replace(/\\/g, "/");
}
arguments_ = process.argv.slice(2);
quit_ = (status, toThrow) => {
process.exitCode = status;
throw toThrow;
};
Module["inspect"] = () => "[Emscripten Module object]";
} else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
if (ENVIRONMENT_IS_WORKER) {
scriptDirectory = self.location.href;
} else if (typeof document != "undefined" && document.currentScript) {
scriptDirectory = document.currentScript.src;
}
if (_scriptDir) {
scriptDirectory = _scriptDir;
}
if (scriptDirectory.indexOf("blob:") !== 0) {
scriptDirectory = scriptDirectory.substr(
0,
scriptDirectory.replace(/[?#].*/, "").lastIndexOf("/") + 1,
);
} else {
scriptDirectory = "";
}
{
read_ = (url) => {
var xhr = new XMLHttpRequest();
xhr.open("GET", url, false);
xhr.send(null);
return xhr.responseText;
};
if (ENVIRONMENT_IS_WORKER) {
readBinary = (url) => {
var xhr = new XMLHttpRequest();
xhr.open("GET", url, false);
xhr.responseType = "arraybuffer";
xhr.send(null);
return new Uint8Array(xhr.response);
};
}
readAsync = (url, onload, onerror) => {
var xhr = new XMLHttpRequest();
xhr.open("GET", url, true);
xhr.responseType = "arraybuffer";
xhr.onload = () => {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) {
onload(xhr.response);
return;
}
onerror();
};
xhr.onerror = onerror;
xhr.send(null);
};
}
} else {
}
var out = Module["print"] || console.log.bind(console);
var err = Module["printErr"] || console.error.bind(console);
Object.assign(Module, moduleOverrides);
moduleOverrides = null;
if (Module["arguments"]) arguments_ = Module["arguments"];
if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
if (Module["quit"]) quit_ = Module["quit"];
var wasmBinary;
if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
if (typeof WebAssembly != "object") {
abort("no native wasm support detected");
}
var wasmMemory;
var ABORT = false;
var EXITSTATUS;
function assert(condition, text) {
if (!condition) {
abort(text);
}
}
var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
function updateMemoryViews() {
var b = wasmMemory.buffer;
Module["HEAP8"] = HEAP8 = new Int8Array(b);
Module["HEAP16"] = HEAP16 = new Int16Array(b);
Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
Module["HEAP32"] = HEAP32 = new Int32Array(b);
Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
}
var __ATPRERUN__ = [];
var __ATINIT__ = [];
var __ATPOSTRUN__ = [];
var runtimeInitialized = false;
function preRun() {
if (Module["preRun"]) {
if (typeof Module["preRun"] == "function")
Module["preRun"] = [Module["preRun"]];
while (Module["preRun"].length) {
addOnPreRun(Module["preRun"].shift());
}
}
callRuntimeCallbacks(__ATPRERUN__);
}
function initRuntime() {
runtimeInitialized = true;
if (!Module["noFSInit"] && !FS.init.initialized) FS.init();
FS.ignorePermissions = false;
TTY.init();
PIPEFS.root = FS.mount(PIPEFS, {}, null);
callRuntimeCallbacks(__ATINIT__);
}
function postRun() {
if (Module["postRun"]) {
if (typeof Module["postRun"] == "function")
Module["postRun"] = [Module["postRun"]];
while (Module["postRun"].length) {
addOnPostRun(Module["postRun"].shift());
}
}
callRuntimeCallbacks(__ATPOSTRUN__);
}
function addOnPreRun(cb) {
__ATPRERUN__.unshift(cb);
}
function addOnInit(cb) {
__ATINIT__.unshift(cb);
}
function addOnPostRun(cb) {
__ATPOSTRUN__.unshift(cb);
}
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null;
function getUniqueRunDependency(id) {
return id;
}
function addRunDependency(id) {
runDependencies++;
Module["monitorRunDependencies"]?.(runDependencies);
}
function removeRunDependency(id) {
runDependencies--;
Module["monitorRunDependencies"]?.(runDependencies);
if (runDependencies == 0) {
if (runDependencyWatcher !== null) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
}
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback();
}
}
}
function abort(what) {
Module["onAbort"]?.(what);
what = "Aborted(" + what + ")";
err(what);
ABORT = true;
EXITSTATUS = 1;
what += ". Build with -sASSERTIONS for more info.";
var e = new WebAssembly.RuntimeError(what);
readyPromiseReject(e);
throw e;
}
var dataURIPrefix = "data:application/octet-stream;base64,";
var isDataURI = (filename) => filename.startsWith(dataURIPrefix);
var isFileURI = (filename) => filename.startsWith("file://");
var wasmBinaryFile;
if (Module["locateFile"]) {
wasmBinaryFile = "libarchive.wasm";
if (!isDataURI(wasmBinaryFile)) {
wasmBinaryFile = locateFile(wasmBinaryFile);
}
} else {
wasmBinaryFile = new URL("libarchive.wasm", import.meta.url).href;
}
function getBinarySync(file) {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary);
}
if (readBinary) {
return readBinary(file);
}
throw "both async and sync fetching of the wasm failed";
}
function getBinaryPromise(binaryFile) {
if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
if (typeof fetch == "function" && !isFileURI(binaryFile)) {
return fetch(binaryFile, { credentials: "same-origin" })
.then((response) => {
if (!response["ok"]) {
throw "failed to load wasm binary file at '" + binaryFile + "'";
}
return response["arrayBuffer"]();
})
.catch(() => getBinarySync(binaryFile));
} else if (readAsync) {
return new Promise((resolve, reject) => {
readAsync(
binaryFile,
(response) => resolve(new Uint8Array(response)),
reject,
);
});
}
}
return Promise.resolve().then(() => getBinarySync(binaryFile));
}
function instantiateArrayBuffer(binaryFile, imports, receiver) {
return getBinaryPromise(binaryFile)
.then((binary) => WebAssembly.instantiate(binary, imports))
.then((instance) => instance)
.then(receiver, (reason) => {
err(`failed to asynchronously prepare wasm: ${reason}`);
abort(reason);
});
}
function instantiateAsync(binary, binaryFile, imports, callback) {
if (
!binary &&
typeof WebAssembly.instantiateStreaming == "function" &&
!isDataURI(binaryFile) &&
!isFileURI(binaryFile) &&
!ENVIRONMENT_IS_NODE &&
typeof fetch == "function"
) {
return fetch(binaryFile, { credentials: "same-origin" }).then(
(response) => {
var result = WebAssembly.instantiateStreaming(response, imports);
return result.then(callback, function (reason) {
err(`wasm streaming compile failed: ${reason}`);
err("falling back to ArrayBuffer instantiation");
return instantiateArrayBuffer(binaryFile, imports, callback);
});
},
);
}
return instantiateArrayBuffer(binaryFile, imports, callback);
}
function createWasm() {
var info = { a: wasmImports };
function receiveInstance(instance, module) {
wasmExports = instance.exports;
wasmMemory = wasmExports["C"];
updateMemoryViews();
addOnInit(wasmExports["D"]);
removeRunDependency("wasm-instantiate");
return wasmExports;
}
addRunDependency("wasm-instantiate");
function receiveInstantiationResult(result) {
receiveInstance(result["instance"]);
}
if (Module["instantiateWasm"]) {
try {
return Module["instantiateWasm"](info, receiveInstance);
} catch (e) {
err(`Module.instantiateWasm callback failed with error: ${e}`);
readyPromiseReject(e);
}
}
instantiateAsync(
wasmBinary,
wasmBinaryFile,
info,
receiveInstantiationResult,
).catch(readyPromiseReject);
return {};
}
var tempDouble;
var tempI64;
function ExitStatus(status) {
this.name = "ExitStatus";
this.message = `Program terminated with exit(${status})`;
this.status = status;
}
var callRuntimeCallbacks = (callbacks) => {
while (callbacks.length > 0) {
callbacks.shift()(Module);
}
};
var noExitRuntime = Module["noExitRuntime"] || true;
var PATH = {
isAbs: (path) => path.charAt(0) === "/",
splitPath: (filename) => {
var splitPathRe =
/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
return splitPathRe.exec(filename).slice(1);
},
normalizeArray: (parts, allowAboveRoot) => {
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === ".") {
parts.splice(i, 1);
} else if (last === "..") {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
if (allowAboveRoot) {
for (; up; up--) {
parts.unshift("..");
}
}
return parts;
},
normalize: (path) => {
var isAbsolute = PATH.isAbs(path),
trailingSlash = path.substr(-1) === "/";
path = PATH.normalizeArray(
path.split("/").filter((p) => !!p),
!isAbsolute,
).join("/");
if (!path && !isAbsolute) {
path = ".";
}
if (path && trailingSlash) {
path += "/";
}
return (isAbsolute ? "/" : "") + path;
},
dirname: (path) => {
var result = PATH.splitPath(path),
root = result[0],
dir = result[1];
if (!root && !dir) {
return ".";
}
if (dir) {
dir = dir.substr(0, dir.length - 1);
}
return root + dir;
},
basename: (path) => {
if (path === "/") return "/";
path = PATH.normalize(path);
path = path.replace(/\/$/, "");
var lastSlash = path.lastIndexOf("/");
if (lastSlash === -1) return path;
return path.substr(lastSlash + 1);
},
join: function () {
var paths = Array.prototype.slice.call(arguments);
return PATH.normalize(paths.join("/"));
},
join2: (l, r) => PATH.normalize(l + "/" + r),
};
var initRandomFill = () => {
if (
typeof crypto == "object" &&
typeof crypto["getRandomValues"] == "function"
) {
return (view) => crypto.getRandomValues(view);
} else if (ENVIRONMENT_IS_NODE) {
try {
var crypto_module = require("crypto");
var randomFillSync = crypto_module["randomFillSync"];
if (randomFillSync) {
return (view) => crypto_module["randomFillSync"](view);
}
var randomBytes = crypto_module["randomBytes"];
return (view) => (view.set(randomBytes(view.byteLength)), view);
} catch (e) {}
}
abort("initRandomDevice");
};
var randomFill = (view) => (randomFill = initRandomFill())(view);
var PATH_FS = {
resolve: function () {
var resolvedPath = "",
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = i >= 0 ? arguments[i] : FS.cwd();
if (typeof path != "string") {
throw new TypeError("Arguments to path.resolve must be strings");
} else if (!path) {
return "";
}
resolvedPath = path + "/" + resolvedPath;
resolvedAbsolute = PATH.isAbs(path);
}
resolvedPath = PATH.normalizeArray(
resolvedPath.split("/").filter((p) => !!p),
!resolvedAbsolute,
).join("/");
return (resolvedAbsolute ? "/" : "") + resolvedPath || ".";
},
relative: (from, to) => {
from = PATH_FS.resolve(from).substr(1);
to = PATH_FS.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== "") break;
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== "") break;
}
if (start > end) return [];
return arr.slice(start, end - start + 1);
}
var fromParts = trim(from.split("/"));
var toParts = trim(to.split("/"));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push("..");
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join("/");
},
};
var UTF8Decoder =
typeof TextDecoder != "undefined" ? new TextDecoder("utf8") : undefined;
var UTF8ArrayToString = (heapOrArray, idx, maxBytesToRead) => {
var endIdx = idx + maxBytesToRead;
var endPtr = idx;
while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
}
var str = "";
while (idx < endPtr) {
var u0 = heapOrArray[idx++];
if (!(u0 & 128)) {
str += String.fromCharCode(u0);
continue;
}
var u1 = heapOrArray[idx++] & 63;
if ((u0 & 224) == 192) {
str += String.fromCharCode(((u0 & 31) << 6) | u1);
continue;
}
var u2 = heapOrArray[idx++] & 63;
if ((u0 & 240) == 224) {
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
} else {
u0 =
((u0 & 7) << 18) |
(u1 << 12) |
(u2 << 6) |
(heapOrArray[idx++] & 63);
}
if (u0 < 65536) {
str += String.fromCharCode(u0);
} else {
var ch = u0 - 65536;
str += String.fromCharCode(55296 | (ch >> 10), 56320 | (ch & 1023));
}
}
return str;
};
var FS_stdin_getChar_buffer = [];
var lengthBytesUTF8 = (str) => {
var len = 0;
for (var i = 0; i < str.length; ++i) {
var c = str.charCodeAt(i);
if (c <= 127) {
len++;
} else if (c <= 2047) {
len += 2;
} else if (c >= 55296 && c <= 57343) {
len += 4;
++i;
} else {
len += 3;
}
}
return len;
};
var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
if (!(maxBytesToWrite > 0)) return 0;
var startIdx = outIdx;
var endIdx = outIdx + maxBytesToWrite - 1;
for (var i = 0; i < str.length; ++i) {
var u = str.charCodeAt(i);
if (u >= 55296 && u <= 57343) {
var u1 = str.charCodeAt(++i);
u = (65536 + ((u & 1023) << 10)) | (u1 & 1023);
}
if (u <= 127) {
if (outIdx >= endIdx) break;
heap[outIdx++] = u;
} else if (u <= 2047) {
if (outIdx + 1 >= endIdx) break;
heap[outIdx++] = 192 | (u >> 6);
heap[outIdx++] = 128 | (u & 63);
} else if (u <= 65535) {
if (outIdx + 2 >= endIdx) break;
heap[outIdx++] = 224 | (u >> 12);
heap[outIdx++] = 128 | ((u >> 6) & 63);
heap[outIdx++] = 128 | (u & 63);
} else {
if (outIdx + 3 >= endIdx) break;
heap[outIdx++] = 240 | (u >> 18);
heap[outIdx++] = 128 | ((u >> 12) & 63);
heap[outIdx++] = 128 | ((u >> 6) & 63);
heap[outIdx++] = 128 | (u & 63);
}
}
heap[outIdx] = 0;
return outIdx - startIdx;
};
function intArrayFromString(stringy, dontAddNull, length) {
var len = length > 0 ? length : lengthBytesUTF8(stringy) + 1;
var u8array = new Array(len);
var numBytesWritten = stringToUTF8Array(
stringy,
u8array,
0,
u8array.length,
);
if (dontAddNull) u8array.length = numBytesWritten;
return u8array;
}
var FS_stdin_getChar = () => {
if (!FS_stdin_getChar_buffer.length) {
var result = null;
if (ENVIRONMENT_IS_NODE) {
var BUFSIZE = 256;
var buf = Buffer.alloc(BUFSIZE);
var bytesRead = 0;
var fd = process.stdin.fd;
try {
bytesRead = fs.readSync(fd, buf);
} catch (e) {
if (e.toString().includes("EOF")) bytesRead = 0;
else throw e;
}
if (bytesRead > 0) {
result = buf.slice(0, bytesRead).toString("utf-8");
} else {
result = null;
}
} else if (
typeof window != "undefined" &&
typeof window.prompt == "function"
) {
result = window.prompt("Input: ");
if (result !== null) {
result += "\n";
}
} else if (typeof readline == "function") {
result = readline();
if (result !== null) {
result += "\n";
}
}
if (!result) {
return null;
}
FS_stdin_getChar_buffer = intArrayFromString(result, true);
}
return FS_stdin_getChar_buffer.shift();
};
var TTY = {
ttys: [],
init() {},
shutdown() {},
register(dev, ops) {
TTY.ttys[dev] = { input: [], output: [], ops: ops };
FS.registerDevice(dev, TTY.stream_ops);
},
stream_ops: {
open(stream) {
var tty = TTY.ttys[stream.node.rdev];
if (!tty) {
throw new FS.ErrnoError(43);
}
stream.tty = tty;
stream.seekable = false;
},
close(stream) {
stream.tty.ops.fsync(stream.tty);
},
fsync(stream) {
stream.tty.ops.fsync(stream.tty);
},
read(stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.get_char) {
throw new FS.ErrnoError(60);
}
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = stream.tty.ops.get_char(stream.tty);
} catch (e) {
throw new FS.ErrnoError(29);
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(6);
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset + i] = result;
}
if (bytesRead) {
stream.node.timestamp = Date.now();
}
return bytesRead;
},
write(stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.put_char) {
throw new FS.ErrnoError(60);
}
try {
for (var i = 0; i < length; i++) {
stream.tty.ops.put_char(stream.tty, buffer[offset + i]);
}
} catch (e) {
throw new FS.ErrnoError(29);
}
if (length) {
stream.node.timestamp = Date.now();
}
return i;
},
},
default_tty_ops: {
get_char(tty) {
return FS_stdin_getChar();
},
put_char(tty, val) {
if (val === null || val === 10) {
out(UTF8ArrayToString(tty.output, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},
fsync(tty) {
if (tty.output && tty.output.length > 0) {
out(UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
},
ioctl_tcgets(tty) {
return {
c_iflag: 25856,
c_oflag: 5,
c_cflag: 191,
c_lflag: 35387,
c_cc: [
3, 28, 127, 21, 4, 0, 1, 0, 17, 19, 26, 0, 18, 15, 23, 22, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
],
};
},
ioctl_tcsets(tty, optional_actions, data) {
return 0;
},
ioctl_tiocgwinsz(tty) {
return [24, 80];
},
},
default_tty1_ops: {
put_char(tty, val) {
if (val === null || val === 10) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},
fsync(tty) {
if (tty.output && tty.output.length > 0) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
},
},
};
var mmapAlloc = (size) => {
abort();
};
var MEMFS = {
ops_table: null,
mount(mount) {
return MEMFS.createNode(null, "/", 16384 | 511, 0);
},
createNode(parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
throw new FS.ErrnoError(63);
}
MEMFS.ops_table ||= {
dir: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
lookup: MEMFS.node_ops.lookup,
mknod: MEMFS.node_ops.mknod,
rename: MEMFS.node_ops.rename,
unlink: MEMFS.node_ops.unlink,
rmdir: MEMFS.node_ops.rmdir,
readdir: MEMFS.node_ops.readdir,
symlink: MEMFS.node_ops.symlink,
},
stream: { llseek: MEMFS.stream_ops.llseek },
},
file: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
},
stream: {
llseek: MEMFS.stream_ops.llseek,
read: MEMFS.stream_ops.read,
write: MEMFS.stream_ops.write,
allocate: MEMFS.stream_ops.allocate,
mmap: MEMFS.stream_ops.mmap,
msync: MEMFS.stream_ops.msync,
},
},
link: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
readlink: MEMFS.node_ops.readlink,
},
stream: {},
},
chrdev: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
},
stream: FS.chrdev_stream_ops,
},
};
var node = FS.createNode(parent, name, mode, dev);
if (FS.isDir(node.mode)) {
node.node_ops = MEMFS.ops_table.dir.node;
node.stream_ops = MEMFS.ops_table.dir.stream;
node.contents = {};
} else if (FS.isFile(node.mode)) {
node.node_ops = MEMFS.ops_table.file.node;
node.stream_ops = MEMFS.ops_table.file.stream;
node.usedBytes = 0;
node.contents = null;
} else if (FS.isLink(node.mode)) {
node.node_ops = MEMFS.ops_table.link.node;
node.stream_ops = MEMFS.ops_table.link.stream;
} else if (FS.isChrdev(node.mode)) {
node.node_ops = MEMFS.ops_table.chrdev.node;
node.stream_ops = MEMFS.ops_table.chrdev.stream;
}
node.timestamp = Date.now();
if (parent) {
parent.contents[name] = node;
parent.timestamp = node.timestamp;
}
return node;
},
getFileDataAsTypedArray(node) {
if (!node.contents) return new Uint8Array(0);
if (node.contents.subarray)
return node.contents.subarray(0, node.usedBytes);
return new Uint8Array(node.contents);
},
expandFileStorage(node, newCapacity) {
var prevCapacity = node.contents ? node.contents.length : 0;
if (prevCapacity >= newCapacity) return;
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
newCapacity = Math.max(
newCapacity,
(prevCapacity *
(prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125)) >>>
0,
);
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256);
var oldContents = node.contents;
node.contents = new Uint8Array(newCapacity);
if (node.usedBytes > 0)
node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
},
resizeFileStorage(node, newSize) {
if (node.usedBytes == newSize) return;
if (newSize == 0) {
node.contents = null;
node.usedBytes = 0;
} else {
var oldContents = node.contents;
node.contents = new Uint8Array(newSize);
if (oldContents) {
node.contents.set(
oldContents.subarray(0, Math.min(newSize, node.usedBytes)),
);
}
node.usedBytes = newSize;
}
},
node_ops: {
getattr(node) {
var attr = {};
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
attr.ino = node.id;
attr.mode = node.mode;
attr.nlink = 1;
attr.uid = 0;
attr.gid = 0;
attr.rdev = node.rdev;
if (FS.isDir(node.mode)) {
attr.size = 4096;
} else if (FS.isFile(node.mode)) {
attr.size = node.usedBytes;
} else if (FS.isLink(node.mode)) {
attr.size = node.link.length;
} else {
attr.size = 0;
}
attr.atime = new Date(node.timestamp);
attr.mtime = new Date(node.timestamp);
attr.ctime = new Date(node.timestamp);
attr.blksize = 4096;
attr.blocks = Math.ceil(attr.size / attr.blksize);
return attr;
},
setattr(node, attr) {
if (attr.mode !== undefined) {
node.mode = attr.mode;
}
if (attr.timestamp !== undefined) {
node.timestamp = attr.timestamp;
}
if (attr.size !== undefined) {
MEMFS.resizeFileStorage(node, attr.size);
}
},
lookup(parent, name) {
throw FS.genericErrors[44];
},
mknod(parent, name, mode, dev) {
return MEMFS.createNode(parent, name, mode, dev);
},
rename(old_node, new_dir, new_name) {
if (FS.isDir(old_node.mode)) {
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name);
} catch (e) {}
if (new_node) {
for (var i in new_node.contents) {
throw new FS.ErrnoError(55);
}
}
}
delete old_node.parent.contents[old_node.name];
old_node.parent.timestamp = Date.now();
old_node.name = new_name;
new_dir.contents[new_name] = old_node;
new_dir.timestamp = old_node.parent.timestamp;
old_node.parent = new_dir;
},
unlink(parent, name) {
delete parent.contents[name];
parent.timestamp = Date.now();
},
rmdir(parent, name) {
var node = FS.lookupNode(parent, name);
for (var i in node.contents) {
throw new FS.ErrnoError(55);
}
delete parent.contents[name];
parent.timestamp = Date.now();
},
readdir(node) {
var entries = [".", ".."];
for (var key of Object.keys(node.contents)) {
entries.push(key);
}
return entries;
},
symlink(parent, newname, oldpath) {
var node = MEMFS.createNode(parent, newname, 511 | 40960, 0);
node.link = oldpath;
return node;
},
readlink(node) {
if (!FS.isLink(node.mode)) {
throw new FS.ErrnoError(28);
}
return node.link;
},
},
stream_ops: {
read(stream, buffer, offset, length, position) {
var contents = stream.node.contents;
if (position >= stream.node.usedBytes) return 0;
var size = Math.min(stream.node.usedBytes - position, length);
if (size > 8 && contents.subarray) {
buffer.set(contents.subarray(position, position + size), offset);
} else {
for (var i = 0; i < size; i++)
buffer[offset + i] = contents[position + i];
}
return size;
},
write(stream, buffer, offset, length, position, canOwn) {
if (buffer.buffer === HEAP8.buffer) {
canOwn = false;
}
if (!length) return 0;
var node = stream.node;
node.timestamp = Date.now();
if (buffer.subarray && (!node.contents || node.contents.subarray)) {
if (canOwn) {
node.contents = buffer.subarray(offset, offset + length);
node.usedBytes = length;
return length;
} else if (node.usedBytes === 0 && position === 0) {
node.contents = buffer.slice(offset, offset + length);
node.usedBytes = length;
return length;
} else if (position + length <= node.usedBytes) {
node.contents.set(
buffer.subarray(offset, offset + length),
position,
);
return length;
}
}
MEMFS.expandFileStorage(node, position + length);
if (node.contents.subarray && buffer.subarray) {
node.contents.set(
buffer.subarray(offset, offset + length),
position,
);
} else {
for (var i = 0; i < length; i++) {
node.contents[position + i] = buffer[offset + i];
}
}
node.usedBytes = Math.max(node.usedBytes, position + length);
return length;
},
llseek(stream, offset, whence) {
var position = offset;
if (whence === 1) {
position += stream.position;
} else if (whence === 2) {
if (FS.isFile(stream.node.mode)) {
position += stream.node.usedBytes;
}
}
if (position < 0) {
throw new FS.ErrnoError(28);
}
return position;
},
allocate(stream, offset, length) {
MEMFS.expandFileStorage(stream.node, offset + length);
stream.node.usedBytes = Math.max(
stream.node.usedBytes,
offset + length,
);
},
mmap(stream, length, position, prot, flags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43);
}
var ptr;
var allocated;
var contents = stream.node.contents;
if (!(flags & 2) && contents.buffer === HEAP8.buffer) {
allocated = false;
ptr = contents.byteOffset;
} else {
if (position > 0 || position + length < contents.length) {
if (contents.subarray) {
contents = contents.subarray(position, position + length);
} else {
contents = Array.prototype.slice.call(
contents,
position,
position + length,
);
}
}
allocated = true;
ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48);
}
HEAP8.set(contents, ptr);
}
return { ptr: ptr, allocated: allocated };
},
msync(stream, buffer, offset, length, mmapFlags) {
MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
return 0;
},
},
};
var asyncLoad = (url, onload, onerror, noRunDep) => {
var dep = !noRunDep ? getUniqueRunDependency(`al ${url}`) : "";
readAsync(
url,
(arrayBuffer) => {
assert(
arrayBuffer,
`Loading data file "${url}" failed (no arrayBuffer).`,
);
onload(new Uint8Array(arrayBuffer));
if (dep) removeRunDependency(dep);
},
(event) => {
if (onerror) {
onerror();
} else {
throw `Loading data file "${url}" failed.`;
}
},
);
if (dep) addRunDependency(dep);
};
var FS_createDataFile = (
parent,
name,
fileData,
canRead,
canWrite,
canOwn,
) => {
FS.createDataFile(parent, name, fileData, canRead, canWrite, canOwn);
};
var preloadPlugins = Module["preloadPlugins"] || [];
var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => {
if (typeof Browser != "undefined") Browser.init();
var handled = false;
preloadPlugins.forEach((plugin) => {
if (handled) return;
if (plugin["canHandle"](fullname)) {
plugin["handle"](byteArray, fullname, finish, onerror);
handled = true;
}
});
return handled;
};
var FS_createPreloadedFile = (
parent,
name,
url,
canRead,
canWrite,
onload,
onerror,
dontCreateFile,
canOwn,
preFinish,
) => {
var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
var dep = getUniqueRunDependency(`cp ${fullname}`);
function processData(byteArray) {
function finish(byteArray) {
preFinish?.();
if (!dontCreateFile) {
FS_createDataFile(
parent,
name,
byteArray,
canRead,
canWrite,
canOwn,
);
}
onload?.();
removeRunDependency(dep);
}
if (
FS_handledByPreloadPlugin(byteArray, fullname, finish, () => {
onerror?.();
removeRunDependency(dep);
})
) {
return;
}
finish(byteArray);
}
addRunDependency(dep);
if (typeof url == "string") {
asyncLoad(url, (byteArray) => processData(byteArray), onerror);
} else {
processData(url);
}
};
var FS_modeStringToFlags = (str) => {
var flagModes = {
r: 0,
"r+": 2,
w: 512 | 64 | 1,
"w+": 512 | 64 | 2,
a: 1024 | 64 | 1,
"a+": 1024 | 64 | 2,
};
var flags = flagModes[str];
if (typeof flags == "undefined") {
throw new Error(`Unknown file open mode: ${str}`);
}
return flags;
};
var FS_getMode = (canRead, canWrite) => {
var mode = 0;
if (canRead) mode |= 292 | 73;
if (canWrite) mode |= 146;
return mode;
};
var FS = {
root: null,
mounts: [],
devices: {},
streams: [],
nextInode: 1,
nameTable: null,
currentPath: "/",
initialized: false,
ignorePermissions: true,
ErrnoError: null,
genericErrors: {},
filesystems: null,
syncFSRequests: 0,
lookupPath(path, opts = {}) {
path = PATH_FS.resolve(path);
if (!path) return { path: "", node: null };
var defaults = { follow_mount: true, recurse_count: 0 };
opts = Object.assign(defaults, opts);
if (opts.recurse_count > 8) {
throw new FS.ErrnoError(32);
}
var parts = path.split("/").filter((p) => !!p);
var current = FS.root;
var current_path = "/";
for (var i = 0; i < parts.length; i++) {
var islast = i === parts.length - 1;
if (islast && opts.parent) {
break;
}
current = FS.lookupNode(current, parts[i]);
current_path = PATH.join2(current_path, parts[i]);
if (FS.isMountpoint(current)) {
if (!islast || (islast && opts.follow_mount)) {
current = current.mounted.root;
}
}
if (!islast || opts.follow) {
var count = 0;
while (FS.isLink(current.mode)) {
var link = FS.readlink(current_path);
current_path = PATH_FS.resolve(PATH.dirname(current_path), link);
var lookup = FS.lookupPath(current_path, {
recurse_count: opts.recurse_count + 1,
});
current = lookup.node;
if (count++ > 40) {
throw new FS.ErrnoError(32);
}
}
}
}
return { path: current_path, node: current };
},
getPath(node) {
var path;
while (true) {
if (FS.isRoot(node)) {
var mount = node.mount.mountpoint;
if (!path) return mount;
return mount[mount.length - 1] !== "/"
? `${mount}/${path}`
: mount + path;
}
path = path ? `${node.name}/${path}` : node.name;
node = node.parent;
}
},
hashName(parentid, name) {
var hash = 0;
for (var i = 0; i < name.length; i++) {
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
}
return ((parentid + hash) >>> 0) % FS.nameTable.length;
},
hashAddNode(node) {
var hash = FS.hashName(node.parent.id, node.name);
node.name_next = FS.nameTable[hash];
FS.nameTable[hash] = node;
},
hashRemoveNode(node) {
var hash = FS.hashName(node.parent.id, node.name);
if (FS.nameTable[hash] === node) {
FS.nameTable[hash] = node.name_next;
} else {
var current = FS.nameTable[hash];
while (current) {
if (current.name_next === node) {
current.name_next = node.name_next;
break;
}
current = current.name_next;
}
}
},
lookupNode(parent, name) {
var errCode = FS.mayLookup(parent);
if (errCode) {
throw new FS.ErrnoError(errCode, parent);
}
var hash = FS.hashName(parent.id, name);
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
var nodeName = node.name;
if (node.parent.id === parent.id && nodeName === name) {
return node;
}
}
return FS.lookup(parent, name);
},
createNode(parent, name, mode, rdev) {
var node = new FS.FSNode(parent, name, mode, rdev);
FS.hashAddNode(node);
return node;
},
destroyNode(node) {
FS.hashRemoveNode(node);
},
isRoot(node) {
return node === node.parent;
},
isMountpoint(node) {
return !!node.mounted;
},
isFile(mode) {
return (mode & 61440) === 32768;
},
isDir(mode) {
return (mode & 61440) === 16384;
},
isLink(mode) {
return (mode & 61440) === 40960;
},
isChrdev(mode) {
return (mode & 61440) === 8192;
},
isBlkdev(mode) {
return (mode & 61440) === 24576;
},
isFIFO(mode) {
return (mode & 61440) === 4096;
},
isSocket(mode) {
return (mode & 49152) === 49152;
},
flagsToPermissionString(flag) {
var perms = ["r", "w", "rw"][flag & 3];
if (flag & 512) {
perms += "w";
}
return perms;
},
nodePermissions(node, perms) {
if (FS.ignorePermissions) {
return 0;
}
if (perms.includes("r") && !(node.mode & 292)) {
return 2;
} else if (perms.includes("w") && !(node.mode & 146)) {
return 2;
} else if (perms.includes("x") && !(node.mode & 73)) {
return 2;
}
return 0;
},
mayLookup(dir) {
var errCode = FS.nodePermissions(dir, "x");
if (errCode) return errCode;
if (!dir.node_ops.lookup) return 2;
return 0;
},
mayCreate(dir, name) {
try {
var node = FS.lookupNode(dir, name);
return 20;
} catch (e) {}
return FS.nodePermissions(dir, "wx");
},
mayDelete(dir, name, isdir) {
var node;
try {
node = FS.lookupNode(dir, name);
} catch (e) {
return e.errno;
}
var errCode = FS.nodePermissions(dir, "wx");
if (errCode) {
return errCode;
}
if (isdir) {
if (!FS.isDir(node.mode)) {
return 54;
}
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
return 10;
}
} else {
if (FS.isDir(node.mode)) {
return 31;
}
}
return 0;
},
mayOpen(node, flags) {
if (!node) {
return 44;
}
if (FS.isLink(node.mode)) {
return 32;
} else if (FS.isDir(node.mode)) {
if (FS.flagsToPermissionString(flags) !== "r" || flags & 512) {
return 31;
}
}
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
},
MAX_OPEN_FDS: 4096,
nextfd() {
for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) {
if (!FS.streams[fd]) {
return fd;
}
}
throw new FS.ErrnoError(33);
},
getStreamChecked(fd) {
var stream = FS.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(8);
}
return stream;
},
getStream: (fd) => FS.streams[fd],
createStream(stream, fd = -1) {
if (!FS.FSStream) {
FS.FSStream = function () {
this.shared = {};
};
FS.FSStream.prototype = {};
Object.defineProperties(FS.FSStream.prototype, {
object: {
get() {
return this.node;
},
set(val) {
this.node = val;
},
},
isRead: {
get() {
return (this.flags & 2097155) !== 1;
},
},
isWrite: {
get() {
return (this.flags & 2097155) !== 0;
},
},
isAppend: {
get() {
return this.flags & 1024;
},
},
flags: {
get() {
return this.shared.flags;
},
set(val) {
this.shared.flags = val;
},
},
position: {
get() {
return this.shared.position;
},
set(val) {
this.shared.position = val;
},
},
});
}
stream = Object.assign(new FS.FSStream(), stream);
if (fd == -1) {
fd = FS.nextfd();
}
stream.fd = fd;
FS.streams[fd] = stream;
return stream;
},
closeStream(fd) {
FS.streams[fd] = null;
},
chrdev_stream_ops: {
open(stream) {
var device = FS.getDevice(stream.node.rdev);
stream.stream_ops = device.stream_ops;
stream.stream_ops.open?.(stream);
},
llseek() {
throw new FS.ErrnoError(70);
},
},
major: (dev) => dev >> 8,
minor: (dev) => dev & 255,
makedev: (ma, mi) => (ma << 8) | mi,
registerDevice(dev, ops) {
FS.devices[dev] = { stream_ops: ops };
},
getDevice: (dev) => FS.devices[dev],
getMounts(mount) {
var mounts = [];
var check = [mount];
while (check.length) {
var m = check.pop();
mounts.push(m);
check.push.apply(check, m.mounts);
}
return mounts;
},
syncfs(populate, callback) {
if (typeof populate == "function") {
callback = populate;
populate = false;
}
FS.syncFSRequests++;
if (FS.syncFSRequests > 1) {
err(
`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`,
);
}
var mounts = FS.getMounts(FS.root.mount);
var completed = 0;
function doCallback(errCode) {
FS.syncFSRequests--;
return callback(errCode);
}
function done(errCode) {
if (errCode) {
if (!done.errored) {
done.errored = true;
return doCallback(errCode);
}
return;
}
if (++completed >= mounts.length) {
doCallback(null);
}
}
mounts.forEach((mount) => {
if (!mount.type.syncfs) {
return done(null);
}
mount.type.syncfs(mount, populate, done);
});
},
mount(type, opts, mountpoint) {
var root = mountpoint === "/";
var pseudo = !mountpoint;
var node;
if (root && FS.root) {
throw new FS.ErrnoError(10);
} else if (!root && !pseudo) {
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
mountpoint = lookup.path;
node = lookup.node;
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(10);
}
if (!FS.isDir(node.mode)) {
throw new FS.ErrnoError(54);
}
}
var mount = {
type: type,
opts: opts,
mountpoint: mountpoint,
mounts: [],
};
var mountRoot = type.mount(mount);
mountRoot.mount = mount;
mount.root = mountRoot;
if (root) {
FS.root = mountRoot;
} else if (node) {
node.mounted = mount;
if (node.mount) {
node.mount.mounts.push(mount);
}
}
re