fluxforge
Version:
基于 Web Worker 的文件分片库，提供并发处理、可暂停/取消任务控制、自动重试与 MD5 校验。
391 lines (390 loc) • 27.8 kB
JavaScript
var F = Object.defineProperty;
var D = (a, s, o) => s in a ? F(a, s, { enumerable: !0, configurable: !0, writable: !0, value: o }) : a[s] = o;
var S = (a, s, o) => D(a, typeof s != "symbol" ? s + "" : s, o);
function j(a) {
return a && a.__esModule && Object.prototype.hasOwnProperty.call(a, "default") ? a.default : a;
}
var E = { exports: {} }, L;
function P() {
return L || (L = 1, function(a, s) {
(function(o) {
a.exports = o();
})(function(o) {
var u = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"];
function h(f, i) {
var e = f[0], t = f[1], n = f[2], r = f[3];
e += (t & n | ~t & r) + i[0] - 680876936 | 0, e = (e << 7 | e >>> 25) + t | 0, r += (e & t | ~e & n) + i[1] - 389564586 | 0, r = (r << 12 | r >>> 20) + e | 0, n += (r & e | ~r & t) + i[2] + 606105819 | 0, n = (n << 17 | n >>> 15) + r | 0, t += (n & r | ~n & e) + i[3] - 1044525330 | 0, t = (t << 22 | t >>> 10) + n | 0, e += (t & n | ~t & r) + i[4] - 176418897 | 0, e = (e << 7 | e >>> 25) + t | 0, r += (e & t | ~e & n) + i[5] + 1200080426 | 0, r = (r << 12 | r >>> 20) + e | 0, n += (r & e | ~r & t) + i[6] - 1473231341 | 0, n = (n << 17 | n >>> 15) + r | 0, t += (n & r | ~n & e) + i[7] - 45705983 | 0, t = (t << 22 | t >>> 10) + n | 0, e += (t & n | ~t & r) + i[8] + 1770035416 | 0, e = (e << 7 | e >>> 25) + t | 0, r += (e & t | ~e & n) + i[9] - 1958414417 | 0, r = (r << 12 | r >>> 20) + e | 0, n += (r & e | ~r & t) + i[10] - 42063 | 0, n = (n << 17 | n >>> 15) + r | 0, t += (n & r | ~n & e) + i[11] - 1990404162 | 0, t = (t << 22 | t >>> 10) + n | 0, e += (t & n | ~t & r) + i[12] + 1804603682 | 0, e = (e << 7 | e >>> 25) + t | 0, r += (e & t | ~e & n) + i[13] - 40341101 | 0, r = (r << 12 | r >>> 20) + e | 0, n += (r & e | ~r & t) + i[14] - 1502002290 | 0, n = (n << 17 | n >>> 15) + r | 0, t += (n & r | ~n & e) + i[15] + 1236535329 | 0, t = (t << 22 | t >>> 10) + n | 0, e += (t & r | n & ~r) + i[1] - 165796510 | 0, e = (e << 5 | e >>> 27) + t | 0, r += (e & n | t & ~n) + i[6] - 1069501632 | 0, r = (r << 9 | r >>> 23) + e | 0, n += (r & t | e & ~t) + i[11] + 643717713 | 0, n = (n << 14 | n >>> 18) + r | 0, t += (n & e | r & ~e) + i[0] - 373897302 | 0, t = (t << 20 | t >>> 12) + n | 0, e += (t & r | n & ~r) + i[5] - 701558691 | 0, e = (e << 5 | e >>> 27) + t | 0, r += (e & n | t & ~n) + i[10] + 38016083 | 0, r = (r << 9 | r >>> 23) + e | 0, n += (r & t | e & ~t) + i[15] - 660478335 | 0, n = (n << 14 | n >>> 18) + r | 0, t += (n & e | r & ~e) + i[4] - 405537848 | 0, t = (t << 20 | t >>> 12) + n | 0, e += (t & r | n & ~r) + i[9] + 568446438 | 0, e = (e << 5 | e >>> 27) + t | 0, r += (e & n | t & ~n) + i[14] - 1019803690 | 0, r = (r << 9 | r >>> 23) + e | 0, n += (r & t | e & ~t) + i[3] - 187363961 | 0, n = (n << 14 | n >>> 18) + r | 0, t += (n & e | r & ~e) + i[8] + 1163531501 | 0, t = (t << 20 | t >>> 12) + n | 0, e += (t & r | n & ~r) + i[13] - 1444681467 | 0, e = (e << 5 | e >>> 27) + t | 0, r += (e & n | t & ~n) + i[2] - 51403784 | 0, r = (r << 9 | r >>> 23) + e | 0, n += (r & t | e & ~t) + i[7] + 1735328473 | 0, n = (n << 14 | n >>> 18) + r | 0, t += (n & e | r & ~e) + i[12] - 1926607734 | 0, t = (t << 20 | t >>> 12) + n | 0, e += (t ^ n ^ r) + i[5] - 378558 | 0, e = (e << 4 | e >>> 28) + t | 0, r += (e ^ t ^ n) + i[8] - 2022574463 | 0, r = (r << 11 | r >>> 21) + e | 0, n += (r ^ e ^ t) + i[11] + 1839030562 | 0, n = (n << 16 | n >>> 16) + r | 0, t += (n ^ r ^ e) + i[14] - 35309556 | 0, t = (t << 23 | t >>> 9) + n | 0, e += (t ^ n ^ r) + i[1] - 1530992060 | 0, e = (e << 4 | e >>> 28) + t | 0, r += (e ^ t ^ n) + i[4] + 1272893353 | 0, r = (r << 11 | r >>> 21) + e | 0, n += (r ^ e ^ t) + i[7] - 155497632 | 0, n = (n << 16 | n >>> 16) + r | 0, t += (n ^ r ^ e) + i[10] - 1094730640 | 0, t = (t << 23 | t >>> 9) + n | 0, e += (t ^ n ^ r) + i[13] + 681279174 | 0, e = (e << 4 | e >>> 28) + t | 0, r += (e ^ t ^ n) + i[0] - 358537222 | 0, r = (r << 11 | r >>> 21) + e | 0, n += (r ^ e ^ t) + i[3] - 722521979 | 0, n = (n << 16 | n >>> 16) + r | 0, t += (n ^ r ^ e) + i[6] + 76029189 | 0, t = (t << 23 | t >>> 9) + n | 0, e += (t ^ n ^ r) + i[9] - 640364487 | 0, e = (e << 4 | e >>> 28) + t | 0, r += (e ^ t ^ n) + i[12] - 421815835 | 0, r = (r << 11 | r >>> 21) + e | 0, n += (r ^ e ^ t) + i[15] + 530742520 | 0, n = (n << 16 | n >>> 16) + r | 0, t += (n ^ r ^ e) + i[2] - 995338651 | 0, t = (t << 23 | t >>> 9) + n | 0, e += (n ^ (t | ~r)) + i[0] - 198630844 | 0, e = (e << 6 | e >>> 26) + t | 0, r += (t ^ (e | ~n)) + i[7] + 1126891415 | 0, r = (r << 10 | r >>> 22) + e | 0, n += (e ^ (r | ~t)) + i[14] - 1416354905 | 0, n = (n << 15 | n >>> 17) + r | 0, t += (r ^ (n | ~e)) + i[5] - 57434055 | 0, t = (t << 21 | t >>> 11) + n | 0, e += (n ^ (t | ~r)) + i[12] + 1700485571 | 0, e = (e << 6 | e >>> 26) + t | 0, r += (t ^ (e | ~n)) + i[3] - 1894986606 | 0, r = (r << 10 | r >>> 22) + e | 0, n += (e ^ (r | ~t)) + i[10] - 1051523 | 0, n = (n << 15 | n >>> 17) + r | 0, t += (r ^ (n | ~e)) + i[1] - 2054922799 | 0, t = (t << 21 | t >>> 11) + n | 0, e += (n ^ (t | ~r)) + i[8] + 1873313359 | 0, e = (e << 6 | e >>> 26) + t | 0, r += (t ^ (e | ~n)) + i[15] - 30611744 | 0, r = (r << 10 | r >>> 22) + e | 0, n += (e ^ (r | ~t)) + i[6] - 1560198380 | 0, n = (n << 15 | n >>> 17) + r | 0, t += (r ^ (n | ~e)) + i[13] + 1309151649 | 0, t = (t << 21 | t >>> 11) + n | 0, e += (n ^ (t | ~r)) + i[4] - 145523070 | 0, e = (e << 6 | e >>> 26) + t | 0, r += (t ^ (e | ~n)) + i[11] - 1120210379 | 0, r = (r << 10 | r >>> 22) + e | 0, n += (e ^ (r | ~t)) + i[2] + 718787259 | 0, n = (n << 15 | n >>> 17) + r | 0, t += (r ^ (n | ~e)) + i[9] - 343485551 | 0, t = (t << 21 | t >>> 11) + n | 0, f[0] = e + f[0] | 0, f[1] = t + f[1] | 0, f[2] = n + f[2] | 0, f[3] = r + f[3] | 0;
}
function l(f) {
var i = [], e;
for (e = 0; e < 64; e += 4)
i[e >> 2] = f.charCodeAt(e) + (f.charCodeAt(e + 1) << 8) + (f.charCodeAt(e + 2) << 16) + (f.charCodeAt(e + 3) << 24);
return i;
}
function y(f) {
var i = [], e;
for (e = 0; e < 64; e += 4)
i[e >> 2] = f[e] + (f[e + 1] << 8) + (f[e + 2] << 16) + (f[e + 3] << 24);
return i;
}
function b(f) {
var i = f.length, e = [1732584193, -271733879, -1732584194, 271733878], t, n, r, g, v, U;
for (t = 64; t <= i; t += 64)
h(e, l(f.substring(t - 64, t)));
for (f = f.substring(t - 64), n = f.length, r = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], t = 0; t < n; t += 1)
r[t >> 2] |= f.charCodeAt(t) << (t % 4 << 3);
if (r[t >> 2] |= 128 << (t % 4 << 3), t > 55)
for (h(e, r), t = 0; t < 16; t += 1)
r[t] = 0;
return g = i * 8, g = g.toString(16).match(/(.*?)(.{0,8})$/), v = parseInt(g[2], 16), U = parseInt(g[1], 16) || 0, r[14] = v, r[15] = U, h(e, r), e;
}
function p(f) {
var i = f.length, e = [1732584193, -271733879, -1732584194, 271733878], t, n, r, g, v, U;
for (t = 64; t <= i; t += 64)
h(e, y(f.subarray(t - 64, t)));
for (f = t - 64 < i ? f.subarray(t - 64) : new Uint8Array(0), n = f.length, r = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], t = 0; t < n; t += 1)
r[t >> 2] |= f[t] << (t % 4 << 3);
if (r[t >> 2] |= 128 << (t % 4 << 3), t > 55)
for (h(e, r), t = 0; t < 16; t += 1)
r[t] = 0;
return g = i * 8, g = g.toString(16).match(/(.*?)(.{0,8})$/), v = parseInt(g[2], 16), U = parseInt(g[1], 16) || 0, r[14] = v, r[15] = U, h(e, r), e;
}
function B(f) {
var i = "", e;
for (e = 0; e < 4; e += 1)
i += u[f >> e * 8 + 4 & 15] + u[f >> e * 8 & 15];
return i;
}
function d(f) {
var i;
for (i = 0; i < f.length; i += 1)
f[i] = B(f[i]);
return f.join("");
}
d(b("hello")), typeof ArrayBuffer != "undefined" && !ArrayBuffer.prototype.slice && function() {
function f(i, e) {
return i = i | 0 || 0, i < 0 ? Math.max(i + e, 0) : Math.min(i, e);
}
ArrayBuffer.prototype.slice = function(i, e) {
var t = this.byteLength, n = f(i, t), r = t, g, v, U, M;
return e !== o && (r = f(e, t)), n > r ? new ArrayBuffer(0) : (g = r - n, v = new ArrayBuffer(g), U = new Uint8Array(v), M = new Uint8Array(this, n, g), U.set(M), v);
};
}();
function C(f) {
return /[\u0080-\uFFFF]/.test(f) && (f = unescape(encodeURIComponent(f))), f;
}
function _(f, i) {
var e = f.length, t = new ArrayBuffer(e), n = new Uint8Array(t), r;
for (r = 0; r < e; r += 1)
n[r] = f.charCodeAt(r);
return i ? n : t;
}
function A(f) {
return String.fromCharCode.apply(null, new Uint8Array(f));
}
function m(f, i, e) {
var t = new Uint8Array(f.byteLength + i.byteLength);
return t.set(new Uint8Array(f)), t.set(new Uint8Array(i), f.byteLength), t;
}
function w(f) {
var i = [], e = f.length, t;
for (t = 0; t < e - 1; t += 2)
i.push(parseInt(f.substr(t, 2), 16));
return String.fromCharCode.apply(String, i);
}
function c() {
this.reset();
}
return c.prototype.append = function(f) {
return this.appendBinary(C(f)), this;
}, c.prototype.appendBinary = function(f) {
this._buff += f, this._length += f.length;
var i = this._buff.length, e;
for (e = 64; e <= i; e += 64)
h(this._hash, l(this._buff.substring(e - 64, e)));
return this._buff = this._buff.substring(e - 64), this;
}, c.prototype.end = function(f) {
var i = this._buff, e = i.length, t, n = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], r;
for (t = 0; t < e; t += 1)
n[t >> 2] |= i.charCodeAt(t) << (t % 4 << 3);
return this._finish(n, e), r = d(this._hash), f && (r = w(r)), this.reset(), r;
}, c.prototype.reset = function() {
return this._buff = "", this._length = 0, this._hash = [1732584193, -271733879, -1732584194, 271733878], this;
}, c.prototype.getState = function() {
return {
buff: this._buff,
length: this._length,
hash: this._hash.slice()
};
}, c.prototype.setState = function(f) {
return this._buff = f.buff, this._length = f.length, this._hash = f.hash, this;
}, c.prototype.destroy = function() {
delete this._hash, delete this._buff, delete this._length;
}, c.prototype._finish = function(f, i) {
var e = i, t, n, r;
if (f[e >> 2] |= 128 << (e % 4 << 3), e > 55)
for (h(this._hash, f), e = 0; e < 16; e += 1)
f[e] = 0;
t = this._length * 8, t = t.toString(16).match(/(.*?)(.{0,8})$/), n = parseInt(t[2], 16), r = parseInt(t[1], 16) || 0, f[14] = n, f[15] = r, h(this._hash, f);
}, c.hash = function(f, i) {
return c.hashBinary(C(f), i);
}, c.hashBinary = function(f, i) {
var e = b(f), t = d(e);
return i ? w(t) : t;
}, c.ArrayBuffer = function() {
this.reset();
}, c.ArrayBuffer.prototype.append = function(f) {
var i = m(this._buff.buffer, f), e = i.length, t;
for (this._length += f.byteLength, t = 64; t <= e; t += 64)
h(this._hash, y(i.subarray(t - 64, t)));
return this._buff = t - 64 < e ? new Uint8Array(i.buffer.slice(t - 64)) : new Uint8Array(0), this;
}, c.ArrayBuffer.prototype.end = function(f) {
var i = this._buff, e = i.length, t = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], n, r;
for (n = 0; n < e; n += 1)
t[n >> 2] |= i[n] << (n % 4 << 3);
return this._finish(t, e), r = d(this._hash), f && (r = w(r)), this.reset(), r;
}, c.ArrayBuffer.prototype.reset = function() {
return this._buff = new Uint8Array(0), this._length = 0, this._hash = [1732584193, -271733879, -1732584194, 271733878], this;
}, c.ArrayBuffer.prototype.getState = function() {
var f = c.prototype.getState.call(this);
return f.buff = A(f.buff), f;
}, c.ArrayBuffer.prototype.setState = function(f) {
return f.buff = _(f.buff, !0), c.prototype.setState.call(this, f);
}, c.ArrayBuffer.prototype.destroy = c.prototype.destroy, c.ArrayBuffer.prototype._finish = c.prototype._finish, c.ArrayBuffer.hash = function(f, i) {
var e = p(new Uint8Array(f)), t = d(e);
return i ? w(t) : t;
}, c;
});
}(E)), E.exports;
}
var T = P();
const W = /* @__PURE__ */ j(T);
class R extends Error {
constructor(s = "Task cancelled") {
super(s), this.name = "CancellationError";
}
}
class $ extends Error {
constructor(o, u) {
const h = u instanceof Error ? u.message : String(u);
super(`Retry exhausted after ${o} attempts: ${h}`);
S(this, "cause");
S(this, "attempts");
this.name = "RetryExhaustedError", this.cause = u, this.attempts = o;
}
}
class z {
constructor() {
S(this, "paused", !1);
S(this, "cancelled", !1);
S(this, "pauseResolvers", /* @__PURE__ */ new Set());
S(this, "delayHandles", /* @__PURE__ */ new Set());
S(this, "abortController", new AbortController());
}
get signal() {
return this.abortController.signal;
}
get isCancelled() {
return this.cancelled;
}
throwIfCancelled() {
if (this.cancelled)
throw new R();
}
async waitWhilePaused() {
for (; this.paused && !this.cancelled; )
await new Promise((s) => {
this.pauseResolvers.add(s);
});
this.throwIfCancelled();
}
async delay(s) {
s <= 0 || await new Promise((o) => {
let u;
const h = {
cancel: () => {
clearTimeout(u), this.delayHandles.delete(h), o();
}
};
u = setTimeout(() => {
this.delayHandles.delete(h), o();
}, s), this.delayHandles.add(h);
});
}
pause() {
this.cancelled || this.paused || (this.paused = !0);
}
resume() {
if (!this.paused)
return;
this.paused = !1;
const s = [...this.pauseResolvers];
this.pauseResolvers.clear(), s.forEach((o) => o());
}
cancel() {
if (this.cancelled)
return;
this.cancelled = !0, this.paused = !1, this.abortController.abort(), this.flushDelays();
const s = [...this.pauseResolvers];
this.pauseResolvers.clear(), s.forEach((o) => o());
}
cleanup() {
this.flushDelays(), this.pauseResolvers.clear();
}
flushDelays() {
const s = [...this.delayHandles];
this.delayHandles.clear(), s.forEach((o) => o.cancel());
}
}
async function O(a, s, o) {
const { maxRetries: u, baseDelayMs: h, maxDelayMs: l } = o;
let y = 0, b;
for (; ; ) {
s.throwIfCancelled(), await s.waitWhilePaused();
try {
return await a();
} catch (p) {
if (p instanceof R)
throw p;
if (s.isCancelled)
throw new R();
if (b = p, y >= u)
throw new $(y + 1, b);
const B = Math.min(h * 2 ** y, l);
y++, await s.delay(B);
}
}
}
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