BackupHEADmaster

1 files changed, 985 insertions, 0 deletions

diff --git a/_worker.js b/_worker.js
new file mode 100644
index 0000000..cab2f2e
--- /dev/null
+++ b/_worker.js
@@ -0,0 +1,985 @@
+// src/worker.js
+import { connect } from "cloudflare:sockets";
+
+let Pswd = 'LeslieAlexanderTrojan88c8292f-d679-41a6-913e-335546702bdf';
+const proxyIPs = ["cdn-all.xn--b6gac.eu.org"]; // https://github.com/HappyLeslieAlexander/Cloudflare_Trojan/blob/main/proxyip.txt 中的地址也可以
+let hostnames = ['www.visa.com.hk'];
+
+let sha224Password ;
+let proxyIP = proxyIPs[Math.floor(Math.random() * proxyIPs.length)];
+const worker_default = {
+    /**
+     * @param {import("@cloudflare/workers-types").Request} request
+     * @param {proxyip: string, pswd: string} env
+     * @param {import("@cloudflare/workers-types").ExecutionContext} ctx
+     * @returns {Promise<Response>}
+     */
+    async fetch(request, env, ctx) {
+        try {
+            proxyIP = env.proxyip || proxyIP;
+            Pswd = env.pswd || Pswd
+            sha224Password = sha256.sha224(Pswd);
+            const upgradeHeader = request.headers.get("Upgrade");
+            if (!upgradeHeader || upgradeHeader !== 'websocket') {
+				const url = new URL(request.url);
+				switch (url.pathname) {
+					case '/cf':
+						return new Response(JSON.stringify(request.cf, null, 4), {
+							status: 200,
+							headers: {
+								"Content-Type": "application/json;charset=utf-8",
+							},
+						});
+					
+					case `/${Pswd}`: {
+						const trojanConfig = gettrojanConfig(Pswd, request.headers.get('Host'));
+						return new Response(`${trojanConfig}`, {
+							status: 200,
+							headers: {
+								"Content-Type": "text/plain;charset=utf-8",
+							}
+						});
+					}
+					default:
+						// return new Response('Not found', { status: 404 });
+						// For any other path, reverse proxy to 'ramdom website' and return the original response, caching it in the process
+						const randomHostname = hostnames[Math.floor(Math.random() * hostnames.length)];
+						const newHeaders = new Headers(request.headers);
+						newHeaders.set('cf-connecting-ip', '1.2.3.4');
+						newHeaders.set('x-forwarded-for', '1.2.3.4');
+						newHeaders.set('x-real-ip', '1.2.3.4');
+						newHeaders.set('referer', 'https://www.google.com/search?q=edtunnel');
+						// Use fetch to proxy the request to 15 different domains
+						const proxyUrl = 'https://' + randomHostname + url.pathname + url.search;
+						let modifiedRequest = new Request(proxyUrl, {
+							method: request.method,
+							headers: newHeaders,
+							body: request.body,
+							redirect: 'manual',
+						});
+						const proxyResponse = await fetch(modifiedRequest, { redirect: 'manual' });
+						// Check for 302 or 301 redirect status and return an error response
+						if ([301, 302].includes(proxyResponse.status)) {
+							return new Response(`Redirects to ${randomHostname} are not allowed.`, {
+								status: 403,
+								statusText: 'Forbidden',
+							});
+						}
+						// Return the response from the proxy server
+						return proxyResponse;
+				}
+			} else {
+				return await trojanOverWSHandler(request);
+			}
+		} catch (err) {
+			/** @type {Error} */ let e = err;
+			return new Response(e.toString());
+		}
+	},
+};
+
+async function trojanOverWSHandler(request) {
+    const webSocketPair = new WebSocketPair();
+    const [client, webSocket] = Object.values(webSocketPair);
+    webSocket.accept();
+    let address = "";
+    let portWithRandomLog = "";
+    const log = (info, event) => {
+        console.log(`[${address}:${portWithRandomLog}] ${info}`, event || "");
+    };
+    const earlyDataHeader = request.headers.get("sec-websocket-protocol") || "";
+    const readableWebSocketStream = makeReadableWebSocketStream(webSocket, earlyDataHeader, log);
+    let remoteSocketWapper = {
+        value: null
+    };
+    let udpStreamWrite = null;
+    readableWebSocketStream.pipeTo(new WritableStream({
+        async write(chunk, controller) {
+            if (udpStreamWrite) {
+                return udpStreamWrite(chunk);
+            }
+            if (remoteSocketWapper.value) {
+                const writer = remoteSocketWapper.value.writable.getWriter();
+                await writer.write(chunk);
+                writer.releaseLock();
+                return;
+            }
+            const {
+                hasError,
+                message,
+                portRemote = 443,
+                addressRemote = "",
+                rawClientData
+            } = await parseTrojanHeader(chunk);
+            address = addressRemote;
+            portWithRandomLog = `${portRemote}--${Math.random()} tcp`;
+            if (hasError) {
+                throw new Error(message);
+                return;
+            }
+            handleTCPOutBound(remoteSocketWapper, addressRemote, portRemote, rawClientData, webSocket, log);
+        },
+        close() {
+            log(`readableWebSocketStream is closed`);
+        },
+        abort(reason) {
+            log(`readableWebSocketStream is aborted`, JSON.stringify(reason));
+        }
+    })).catch((err) => {
+        log("readableWebSocketStream pipeTo error", err);
+    });
+    return new Response(null, {
+        status: 101,
+        // @ts-ignore
+        webSocket: client
+    });
+}
+
+async function parseTrojanHeader(buffer) {
+    if (buffer.byteLength < 56) {
+        return {
+            hasError: true,
+            message: "invalid data"
+        };
+    }
+    let crLfIndex = 56;
+    if (new Uint8Array(buffer.slice(56, 57))[0] !== 0x0d || new Uint8Array(buffer.slice(57, 58))[0] !== 0x0a) {
+        return {
+            hasError: true,
+            message: "invalid header format (missing CR LF)"
+        };
+    }
+    const password = new TextDecoder().decode(buffer.slice(0, crLfIndex));
+    if (password !== sha224Password) {
+        return {
+            hasError: true,
+            message: "invalid password"
+        };
+    }
+
+    const socks5DataBuffer = buffer.slice(crLfIndex + 2);
+    if (socks5DataBuffer.byteLength < 6) {
+        return {
+            hasError: true,
+            message: "invalid SOCKS5 request data"
+        };
+    }
+
+    const view = new DataView(socks5DataBuffer);
+    const cmd = view.getUint8(0);
+    if (cmd !== 1) {
+        return {
+            hasError: true,
+            message: "unsupported command, only TCP (CONNECT) is allowed"
+        };
+    }
+
+    const atype = view.getUint8(1);
+    // 0x01: IPv4 address
+    // 0x03: Domain name
+    // 0x04: IPv6 address
+    let addressLength = 0;
+    let addressIndex = 2;
+    let address = "";
+    switch (atype) {
+        case 1:
+            addressLength = 4;
+            address = new Uint8Array(
+              socks5DataBuffer.slice(addressIndex, addressIndex + addressLength)
+            ).join(".");
+            break;
+        case 3:
+            addressLength = new Uint8Array(
+              socks5DataBuffer.slice(addressIndex, addressIndex + 1)
+            )[0];
+            addressIndex += 1;
+            address = new TextDecoder().decode(
+              socks5DataBuffer.slice(addressIndex, addressIndex + addressLength)
+            );
+            break;
+        case 4:
+            addressLength = 16;
+            const dataView = new DataView(socks5DataBuffer.slice(addressIndex, addressIndex + addressLength));
+            const ipv6 = [];
+            for (let i = 0; i < 8; i++) {
+                ipv6.push(dataView.getUint16(i * 2).toString(16));
+            }
+            address = ipv6.join(":");
+            break;
+        default:
+            return {
+                hasError: true,
+                message: `invalid addressType is ${atype}`
+            };
+    }
+
+    if (!address) {
+        return {
+            hasError: true,
+            message: `address is empty, addressType is ${atype}`
+        };
+    }
+
+    const portIndex = addressIndex + addressLength;
+    const portBuffer = socks5DataBuffer.slice(portIndex, portIndex + 2);
+    const portRemote = new DataView(portBuffer).getUint16(0);
+    return {
+        hasError: false,
+        addressRemote: address,
+        portRemote,
+        rawClientData: socks5DataBuffer.slice(portIndex + 4)
+    };
+}
+
+async function handleTCPOutBound(remoteSocket, addressRemote, portRemote, rawClientData, webSocket, log) {
+    async function connectAndWrite(address, port) {
+        const tcpSocket2 = connect({
+            hostname: address,
+            port
+        });
+        remoteSocket.value = tcpSocket2;
+        log(`connected to ${address}:${port}`);
+        const writer = tcpSocket2.writable.getWriter();
+        await writer.write(rawClientData);
+        writer.releaseLock();
+        return tcpSocket2;
+    }
+    async function retry() {
+        const tcpSocket2 = await connectAndWrite(proxyIP || addressRemote, portRemote);
+        tcpSocket2.closed.catch((error) => {
+            console.log("retry tcpSocket closed error", error);
+        }).finally(() => {
+            safeCloseWebSocket(webSocket);
+        });
+        remoteSocketToWS(tcpSocket2, webSocket, null, log);
+    }
+    const tcpSocket = await connectAndWrite(addressRemote, portRemote);
+    remoteSocketToWS(tcpSocket, webSocket, retry, log);
+}
+
+function makeReadableWebSocketStream(webSocketServer, earlyDataHeader, log) {
+    let readableStreamCancel = false;
+    const stream = new ReadableStream({
+        start(controller) {
+            webSocketServer.addEventListener("message", (event) => {
+                if (readableStreamCancel) {
+                    return;
+                }
+                const message = event.data;
+                controller.enqueue(message);
+            });
+            webSocketServer.addEventListener("close", () => {
+                safeCloseWebSocket(webSocketServer);
+                if (readableStreamCancel) {
+                    return;
+                }
+                controller.close();
+            });
+            webSocketServer.addEventListener("error", (err) => {
+                log("webSocketServer error");
+                controller.error(err);
+            });
+            const { earlyData, error } = base64ToArrayBuffer(earlyDataHeader);
+            if (error) {
+                controller.error(error);
+            } else if (earlyData) {
+                controller.enqueue(earlyData);
+            }
+        },
+        pull(controller) {},
+        cancel(reason) {
+            if (readableStreamCancel) {
+                return;
+            }
+            log(`readableStream was canceled, due to ${reason}`);
+            readableStreamCancel = true;
+            safeCloseWebSocket(webSocketServer);
+        }
+    });
+    return stream;
+}
+
+async function remoteSocketToWS(remoteSocket, webSocket, retry, log) {
+    let hasIncomingData = false;
+    await remoteSocket.readable.pipeTo(
+        new WritableStream({
+            start() {},
+            /**
+             *
+             * @param {Uint8Array} chunk
+             * @param {*} controller
+             */
+            async write(chunk, controller) {
+                hasIncomingData = true;
+                if (webSocket.readyState !== WS_READY_STATE_OPEN) {
+                    controller.error(
+                        "webSocket connection is not open"
+                    );
+                }
+                webSocket.send(chunk);
+            },
+            close() {
+                log(`remoteSocket.readable is closed, hasIncomingData: ${hasIncomingData}`);
+            },
+            abort(reason) {
+                console.error("remoteSocket.readable abort", reason);
+            }
+        })
+    ).catch((error) => {
+        console.error(
+            `remoteSocketToWS error:`,
+            error.stack || error
+        );
+        safeCloseWebSocket(webSocket);
+    });
+    if (hasIncomingData === false && retry) {
+        log(`retry`);
+        retry();
+    }
+}
+
+function base64ToArrayBuffer(base64Str) {
+    if (!base64Str) {
+        return { error: null };
+    }
+    try {
+        base64Str = base64Str.replace(/-/g, "+").replace(/_/g, "/");
+        const decode = atob(base64Str);
+        const arryBuffer = Uint8Array.from(decode, (c) => c.charCodeAt(0));
+        return { earlyData: arryBuffer.buffer, error: null };
+    } catch (error) {
+        return { error };
+    }
+}
+
+let WS_READY_STATE_OPEN = 1;
+let WS_READY_STATE_CLOSING = 2;
+
+function safeCloseWebSocket(socket) {
+    try {
+        if (socket.readyState === WS_READY_STATE_OPEN || socket.readyState === WS_READY_STATE_CLOSING) {
+            socket.close();
+        }
+    } catch (error) {
+        console.error("safeCloseWebSocket error", error);
+    }
+}
+export {
+    worker_default as
+    default
+};
+ 
+//# sourceMappingURL=worker.js.map
+function gettrojanConfig(Pswd, hostName) {
+	const wtrojanwstls = `trojan://${Pswd}\u0040www.visa.com.hk:443?security=tls&type=ws&host=${hostName}&path=%2F%3Fed%3D2560#Leslie-Workers/Pages`;
+	const ptrojanwstls = `trojan://${Pswd}\u0040www.visa.com.hk:443?security=tls&type=ws&host=${hostName}&sni=${hostName}&fp=random&path=%2F%3Fed%3D2560#Leslie-Workers/Pages-TLS`;
+    const note = `正在使用的ProxyIP：${proxyIP}`;
+  
+    if (hostName.includes('pages.dev')) {
+    return `
+==========================配置详解==============================
+
+${note}
+
+################################################################
+Cloudflare-Pages-Trojan+Websocket+TLS节点，分享链接如下：
+
+${ptrojanwstls}
+
+---------------------------------------------------------------
+注意：如果 ${hostName} 在本地网络打不开，客户端必须开启TLS切片功能
+---------------------------------------------------------------
+客户端必要文明参数如下：
+客户端地址(address)：自定义的域名 或者 优选域名 或者 优选IP
+端口(port)：6个TLS端口可任意选择(443、8443、2053、2083、2087、2096)
+密码：${Pswd}
+传输协议(network)：Websocket
+伪装域名(host)：${hostName}
+路径(path)：/?ed=2560
+传输安全(TLS)：开启
+跳过证书验证(allowlnsecure)：false
+################################################################
+捐赠
+加密货币
+TRON
+TY7n1xwiHCBqcQqGH1cxjTQqZTuTXbzB4S
+Ethereum
+0xed57e7237e88cec19d3fd12a0d26bacb1dcc247b
+Polygon
+0xed57e7237e88cec19d3fd12a0d26bacb1dcc247b
+TON
+UQC4r4gxAIbOTEEZGG-C1Ffn9inRo24J7qw3U0dFfaIfKyFr
+---------------------------------------------------------------
+联系
+Telegram: https://t.me/Depressed_LeslieAlexander/
+项目地址: https://github.com/HappyLeslieAlexander/Cloudflare_Trojan/
+By Leslie Alexander
+`;
+  } else {
+    return `
+==========================配置详解==============================
+
+${note}
+
+################################################################
+一、Cloudflare-Workers-Trojan+Websocket+TLS节点，分享链接如下：
+
+${wtrojanwstls}
+
+---------------------------------------------------------------
+注意：如果 ${hostName} 在本地网络打不开，客户端必须开启TLS切片功能
+---------------------------------------------------------------
+客户端必要文明参数如下：
+客户端地址(address)：自定义的域名 或者 优选域名 或者 优选IP
+端口(port)：6个TLS端口可任意选择(443、8443、2053、2083、2087、2096)
+密码：${Pswd}
+传输协议(network)：Websocket
+伪装域名(host)：${hostName}
+路径(path)：/?ed=2560
+################################################################
+捐赠
+加密货币
+TRON
+TY7n1xwiHCBqcQqGH1cxjTQqZTuTXbzB4S
+Ethereum
+0xed57e7237e88cec19d3fd12a0d26bacb1dcc247b
+Polygon
+0xed57e7237e88cec19d3fd12a0d26bacb1dcc247b
+TON
+UQC4r4gxAIbOTEEZGG-C1Ffn9inRo24J7qw3U0dFfaIfKyFr
+---------------------------------------------------------------
+联系
+Telegram: https://t.me/Depressed_LeslieAlexander/
+E-mail: https://github.com/HappyLeslieAlexander/
+项目地址: https://github.com/HappyLeslieAlexander/Cloudflare_Trojan/
+By Leslie Alexander
+`;
+  }
+}
+
+/**
+ * [js-sha256]{@link https://github.com/emn178/js-sha256}
+ *
+ * @version 0.11.0
+ * @author Chen, Yi-Cyuan [emn178@gmail.com]
+ * @copyright Chen, Yi-Cyuan 2014-2024
+ * @license MIT
+ */
+/*jslint bitwise: true */
+(function () {
+  'use strict';
+
+  var ERROR = 'input is invalid type';
+  var WINDOW = typeof window === 'object';
+  var root = WINDOW ? window : {};
+  if (root.JS_SHA256_NO_WINDOW) {
+    WINDOW = false;
+  }
+  var WEB_WORKER = !WINDOW && typeof self === 'object';
+  var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
+  if (NODE_JS) {
+    root = global;
+  } else if (WEB_WORKER) {
+    root = self;
+  }
+  var COMMON_JS = !root.JS_SHA256_NO_COMMON_JS && typeof module === 'object' && module.exports;
+  var AMD = typeof define === 'function' && define.amd;
+  var ARRAY_BUFFER = !root.JS_SHA256_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined';
+  var HEX_CHARS = '0123456789abcdef'.split('');
+  var EXTRA = [-2147483648, 8388608, 32768, 128];
+  var SHIFT = [24, 16, 8, 0];
+  var K = [
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+  ];
+  var OUTPUT_TYPES = ['hex', 'array', 'digest', 'arrayBuffer'];
+
+  var blocks = [];
+
+  if (root.JS_SHA256_NO_NODE_JS || !Array.isArray) {
+    Array.isArray = function (obj) {
+      return Object.prototype.toString.call(obj) === '[object Array]';
+    };
+  }
+
+  if (ARRAY_BUFFER && (root.JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW || !ArrayBuffer.isView)) {
+    ArrayBuffer.isView = function (obj) {
+      return typeof obj === 'object' && obj.buffer && obj.buffer.constructor === ArrayBuffer;
+    };
+  }
+
+  var createOutputMethod = function (outputType, is224) {
+    return function (message) {
+      return new Sha256(is224, true).update(message)[outputType]();
+    };
+  };
+
+  var createMethod = function (is224) {
+    var method = createOutputMethod('hex', is224);
+    if (NODE_JS) {
+      method = nodeWrap(method, is224);
+    }
+    method.create = function () {
+      return new Sha256(is224);
+    };
+    method.update = function (message) {
+      return method.create().update(message);
+    };
+    for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
+      var type = OUTPUT_TYPES[i];
+      method[type] = createOutputMethod(type, is224);
+    }
+    return method;
+  };
+
+  var nodeWrap = function (method, is224) {
+    var crypto = require('crypto')
+    var Buffer = require('buffer').Buffer;
+    var algorithm = is224 ? 'sha224' : 'sha256';
+    var bufferFrom;
+    if (Buffer.from && !root.JS_SHA256_NO_BUFFER_FROM) {
+      bufferFrom = Buffer.from;
+    } else {
+      bufferFrom = function (message) {
+        return new Buffer(message);
+      };
+    }
+    var nodeMethod = function (message) {
+      if (typeof message === 'string') {
+        return crypto.createHash(algorithm).update(message, 'utf8').digest('hex');
+      } else {
+        if (message === null || message === undefined) {
+          throw new Error(ERROR);
+        } else if (message.constructor === ArrayBuffer) {
+          message = new Uint8Array(message);
+        }
+      }
+      if (Array.isArray(message) || ArrayBuffer.isView(message) ||
+        message.constructor === Buffer) {
+        return crypto.createHash(algorithm).update(bufferFrom(message)).digest('hex');
+      } else {
+        return method(message);
+      }
+    };
+    return nodeMethod;
+  };
+
+  var createHmacOutputMethod = function (outputType, is224) {
+    return function (key, message) {
+      return new HmacSha256(key, is224, true).update(message)[outputType]();
+    };
+  };
+
+  var createHmacMethod = function (is224) {
+    var method = createHmacOutputMethod('hex', is224);
+    method.create = function (key) {
+      return new HmacSha256(key, is224);
+    };
+    method.update = function (key, message) {
+      return method.create(key).update(message);
+    };
+    for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
+      var type = OUTPUT_TYPES[i];
+      method[type] = createHmacOutputMethod(type, is224);
+    }
+    return method;
+  };
+
+  function Sha256(is224, sharedMemory) {
+    if (sharedMemory) {
+      blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
+        blocks[4] = blocks[5] = blocks[6] = blocks[7] =
+        blocks[8] = blocks[9] = blocks[10] = blocks[11] =
+        blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+      this.blocks = blocks;
+    } else {
+      this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
+    }
+
+    if (is224) {
+      this.h0 = 0xc1059ed8;
+      this.h1 = 0x367cd507;
+      this.h2 = 0x3070dd17;
+      this.h3 = 0xf70e5939;
+      this.h4 = 0xffc00b31;
+      this.h5 = 0x68581511;
+      this.h6 = 0x64f98fa7;
+      this.h7 = 0xbefa4fa4;
+    } else { // 256
+      this.h0 = 0x6a09e667;
+      this.h1 = 0xbb67ae85;
+      this.h2 = 0x3c6ef372;
+      this.h3 = 0xa54ff53a;
+      this.h4 = 0x510e527f;
+      this.h5 = 0x9b05688c;
+      this.h6 = 0x1f83d9ab;
+      this.h7 = 0x5be0cd19;
+    }
+
+    this.block = this.start = this.bytes = this.hBytes = 0;
+    this.finalized = this.hashed = false;
+    this.first = true;
+    this.is224 = is224;
+  }
+
+  Sha256.prototype.update = function (message) {
+    if (this.finalized) {
+      return;
+    }
+    var notString, type = typeof message;
+    if (type !== 'string') {
+      if (type === 'object') {
+        if (message === null) {
+          throw new Error(ERROR);
+        } else if (ARRAY_BUFFER && message.constructor === ArrayBuffer) {
+          message = new Uint8Array(message);
+        } else if (!Array.isArray(message)) {
+          if (!ARRAY_BUFFER || !ArrayBuffer.isView(message)) {
+            throw new Error(ERROR);
+          }
+        }
+      } else {
+        throw new Error(ERROR);
+      }
+      notString = true;
+    }
+    var code, index = 0, i, length = message.length, blocks = this.blocks;
+    while (index < length) {
+      if (this.hashed) {
+        this.hashed = false;
+        blocks[0] = this.block;
+        this.block = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
+          blocks[4] = blocks[5] = blocks[6] = blocks[7] =
+          blocks[8] = blocks[9] = blocks[10] = blocks[11] =
+          blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+      }
+
+      if (notString) {
+        for (i = this.start; index < length && i < 64; ++index) {
+          blocks[i >>> 2] |= message[index] << SHIFT[i++ & 3];
+        }
+      } else {
+        for (i = this.start; index < length && i < 64; ++index) {
+          code = message.charCodeAt(index);
+          if (code < 0x80) {
+            blocks[i >>> 2] |= code << SHIFT[i++ & 3];
+          } else if (code < 0x800) {
+            blocks[i >>> 2] |= (0xc0 | (code >>> 6)) << SHIFT[i++ & 3];
+            blocks[i >>> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+          } else if (code < 0xd800 || code >= 0xe000) {
+            blocks[i >>> 2] |= (0xe0 | (code >>> 12)) << SHIFT[i++ & 3];
+            blocks[i >>> 2] |= (0x80 | ((code >>> 6) & 0x3f)) << SHIFT[i++ & 3];
+            blocks[i >>> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+          } else {
+            code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
+            blocks[i >>> 2] |= (0xf0 | (code >>> 18)) << SHIFT[i++ & 3];
+            blocks[i >>> 2] |= (0x80 | ((code >>> 12) & 0x3f)) << SHIFT[i++ & 3];
+            blocks[i >>> 2] |= (0x80 | ((code >>> 6) & 0x3f)) << SHIFT[i++ & 3];
+            blocks[i >>> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+          }
+        }
+      }
+
+      this.lastByteIndex = i;
+      this.bytes += i - this.start;
+      if (i >= 64) {
+        this.block = blocks[16];
+        this.start = i - 64;
+        this.hash();
+        this.hashed = true;
+      } else {
+        this.start = i;
+      }
+    }
+    if (this.bytes > 4294967295) {
+      this.hBytes += this.bytes / 4294967296 << 0;
+      this.bytes = this.bytes % 4294967296;
+    }
+    return this;
+  };
+
+  Sha256.prototype.finalize = function () {
+    if (this.finalized) {
+      return;
+    }
+    this.finalized = true;
+    var blocks = this.blocks, i = this.lastByteIndex;
+    blocks[16] = this.block;
+    blocks[i >>> 2] |= EXTRA[i & 3];
+    this.block = blocks[16];
+    if (i >= 56) {
+      if (!this.hashed) {
+        this.hash();
+      }
+      blocks[0] = this.block;
+      blocks[16] = blocks[1] = blocks[2] = blocks[3] =
+        blocks[4] = blocks[5] = blocks[6] = blocks[7] =
+        blocks[8] = blocks[9] = blocks[10] = blocks[11] =
+        blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+    }
+    blocks[14] = this.hBytes << 3 | this.bytes >>> 29;
+    blocks[15] = this.bytes << 3;
+    this.hash();
+  };
+
+  Sha256.prototype.hash = function () {
+    var a = this.h0, b = this.h1, c = this.h2, d = this.h3, e = this.h4, f = this.h5, g = this.h6,
+      h = this.h7, blocks = this.blocks, j, s0, s1, maj, t1, t2, ch, ab, da, cd, bc;
+
+    for (j = 16; j < 64; ++j) {
+      // rightrotate
+      t1 = blocks[j - 15];
+      s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3);
+      t1 = blocks[j - 2];
+      s1 = ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ (t1 >>> 10);
+      blocks[j] = blocks[j - 16] + s0 + blocks[j - 7] + s1 << 0;
+    }
+
+    bc = b & c;
+    for (j = 0; j < 64; j += 4) {
+      if (this.first) {
+        if (this.is224) {
+          ab = 300032;
+          t1 = blocks[0] - 1413257819;
+          h = t1 - 150054599 << 0;
+          d = t1 + 24177077 << 0;
+        } else {
+          ab = 704751109;
+          t1 = blocks[0] - 210244248;
+          h = t1 - 1521486534 << 0;
+          d = t1 + 143694565 << 0;
+        }
+        this.first = false;
+      } else {
+        s0 = ((a >>> 2) | (a << 30)) ^ ((a >>> 13) | (a << 19)) ^ ((a >>> 22) | (a << 10));
+        s1 = ((e >>> 6) | (e << 26)) ^ ((e >>> 11) | (e << 21)) ^ ((e >>> 25) | (e << 7));
+        ab = a & b;
+        maj = ab ^ (a & c) ^ bc;
+        ch = (e & f) ^ (~e & g);
+        t1 = h + s1 + ch + K[j] + blocks[j];
+        t2 = s0 + maj;
+        h = d + t1 << 0;
+        d = t1 + t2 << 0;
+      }
+      s0 = ((d >>> 2) | (d << 30)) ^ ((d >>> 13) | (d << 19)) ^ ((d >>> 22) | (d << 10));
+      s1 = ((h >>> 6) | (h << 26)) ^ ((h >>> 11) | (h << 21)) ^ ((h >>> 25) | (h << 7));
+      da = d & a;
+      maj = da ^ (d & b) ^ ab;
+      ch = (h & e) ^ (~h & f);
+      t1 = g + s1 + ch + K[j + 1] + blocks[j + 1];
+      t2 = s0 + maj;
+      g = c + t1 << 0;
+      c = t1 + t2 << 0;
+      s0 = ((c >>> 2) | (c << 30)) ^ ((c >>> 13) | (c << 19)) ^ ((c >>> 22) | (c << 10));
+      s1 = ((g >>> 6) | (g << 26)) ^ ((g >>> 11) | (g << 21)) ^ ((g >>> 25) | (g << 7));
+      cd = c & d;
+      maj = cd ^ (c & a) ^ da;
+      ch = (g & h) ^ (~g & e);
+      t1 = f + s1 + ch + K[j + 2] + blocks[j + 2];
+      t2 = s0 + maj;
+      f = b + t1 << 0;
+      b = t1 + t2 << 0;
+      s0 = ((b >>> 2) | (b << 30)) ^ ((b >>> 13) | (b << 19)) ^ ((b >>> 22) | (b << 10));
+      s1 = ((f >>> 6) | (f << 26)) ^ ((f >>> 11) | (f << 21)) ^ ((f >>> 25) | (f << 7));
+      bc = b & c;
+      maj = bc ^ (b & d) ^ cd;
+      ch = (f & g) ^ (~f & h);
+      t1 = e + s1 + ch + K[j + 3] + blocks[j + 3];
+      t2 = s0 + maj;
+      e = a + t1 << 0;
+      a = t1 + t2 << 0;
+      this.chromeBugWorkAround = true;
+    }
+
+    this.h0 = this.h0 + a << 0;
+    this.h1 = this.h1 + b << 0;
+    this.h2 = this.h2 + c << 0;
+    this.h3 = this.h3 + d << 0;
+    this.h4 = this.h4 + e << 0;
+    this.h5 = this.h5 + f << 0;
+    this.h6 = this.h6 + g << 0;
+    this.h7 = this.h7 + h << 0;
+  };
+
+  Sha256.prototype.hex = function () {
+    this.finalize();
+
+    var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
+      h6 = this.h6, h7 = this.h7;
+
+    var hex = HEX_CHARS[(h0 >>> 28) & 0x0F] + HEX_CHARS[(h0 >>> 24) & 0x0F] +
+      HEX_CHARS[(h0 >>> 20) & 0x0F] + HEX_CHARS[(h0 >>> 16) & 0x0F] +
+      HEX_CHARS[(h0 >>> 12) & 0x0F] + HEX_CHARS[(h0 >>> 8) & 0x0F] +
+      HEX_CHARS[(h0 >>> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
+      HEX_CHARS[(h1 >>> 28) & 0x0F] + HEX_CHARS[(h1 >>> 24) & 0x0F] +
+      HEX_CHARS[(h1 >>> 20) & 0x0F] + HEX_CHARS[(h1 >>> 16) & 0x0F] +
+      HEX_CHARS[(h1 >>> 12) & 0x0F] + HEX_CHARS[(h1 >>> 8) & 0x0F] +
+      HEX_CHARS[(h1 >>> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
+      HEX_CHARS[(h2 >>> 28) & 0x0F] + HEX_CHARS[(h2 >>> 24) & 0x0F] +
+      HEX_CHARS[(h2 >>> 20) & 0x0F] + HEX_CHARS[(h2 >>> 16) & 0x0F] +
+      HEX_CHARS[(h2 >>> 12) & 0x0F] + HEX_CHARS[(h2 >>> 8) & 0x0F] +
+      HEX_CHARS[(h2 >>> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
+      HEX_CHARS[(h3 >>> 28) & 0x0F] + HEX_CHARS[(h3 >>> 24) & 0x0F] +
+      HEX_CHARS[(h3 >>> 20) & 0x0F] + HEX_CHARS[(h3 >>> 16) & 0x0F] +
+      HEX_CHARS[(h3 >>> 12) & 0x0F] + HEX_CHARS[(h3 >>> 8) & 0x0F] +
+      HEX_CHARS[(h3 >>> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
+      HEX_CHARS[(h4 >>> 28) & 0x0F] + HEX_CHARS[(h4 >>> 24) & 0x0F] +
+      HEX_CHARS[(h4 >>> 20) & 0x0F] + HEX_CHARS[(h4 >>> 16) & 0x0F] +
+      HEX_CHARS[(h4 >>> 12) & 0x0F] + HEX_CHARS[(h4 >>> 8) & 0x0F] +
+      HEX_CHARS[(h4 >>> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] +
+      HEX_CHARS[(h5 >>> 28) & 0x0F] + HEX_CHARS[(h5 >>> 24) & 0x0F] +
+      HEX_CHARS[(h5 >>> 20) & 0x0F] + HEX_CHARS[(h5 >>> 16) & 0x0F] +
+      HEX_CHARS[(h5 >>> 12) & 0x0F] + HEX_CHARS[(h5 >>> 8) & 0x0F] +
+      HEX_CHARS[(h5 >>> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] +
+      HEX_CHARS[(h6 >>> 28) & 0x0F] + HEX_CHARS[(h6 >>> 24) & 0x0F] +
+      HEX_CHARS[(h6 >>> 20) & 0x0F] + HEX_CHARS[(h6 >>> 16) & 0x0F] +
+      HEX_CHARS[(h6 >>> 12) & 0x0F] + HEX_CHARS[(h6 >>> 8) & 0x0F] +
+      HEX_CHARS[(h6 >>> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F];
+    if (!this.is224) {
+      hex += HEX_CHARS[(h7 >>> 28) & 0x0F] + HEX_CHARS[(h7 >>> 24) & 0x0F] +
+        HEX_CHARS[(h7 >>> 20) & 0x0F] + HEX_CHARS[(h7 >>> 16) & 0x0F] +
+        HEX_CHARS[(h7 >>> 12) & 0x0F] + HEX_CHARS[(h7 >>> 8) & 0x0F] +
+        HEX_CHARS[(h7 >>> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F];
+    }
+    return hex;
+  };
+
+  Sha256.prototype.toString = Sha256.prototype.hex;
+
+  Sha256.prototype.digest = function () {
+    this.finalize();
+
+    var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
+      h6 = this.h6, h7 = this.h7;
+
+    var arr = [
+      (h0 >>> 24) & 0xFF, (h0 >>> 16) & 0xFF, (h0 >>> 8) & 0xFF, h0 & 0xFF,
+      (h1 >>> 24) & 0xFF, (h1 >>> 16) & 0xFF, (h1 >>> 8) & 0xFF, h1 & 0xFF,
+      (h2 >>> 24) & 0xFF, (h2 >>> 16) & 0xFF, (h2 >>> 8) & 0xFF, h2 & 0xFF,
+      (h3 >>> 24) & 0xFF, (h3 >>> 16) & 0xFF, (h3 >>> 8) & 0xFF, h3 & 0xFF,
+      (h4 >>> 24) & 0xFF, (h4 >>> 16) & 0xFF, (h4 >>> 8) & 0xFF, h4 & 0xFF,
+      (h5 >>> 24) & 0xFF, (h5 >>> 16) & 0xFF, (h5 >>> 8) & 0xFF, h5 & 0xFF,
+      (h6 >>> 24) & 0xFF, (h6 >>> 16) & 0xFF, (h6 >>> 8) & 0xFF, h6 & 0xFF
+    ];
+    if (!this.is224) {
+      arr.push((h7 >>> 24) & 0xFF, (h7 >>> 16) & 0xFF, (h7 >>> 8) & 0xFF, h7 & 0xFF);
+    }
+    return arr;
+  };
+
+  Sha256.prototype.array = Sha256.prototype.digest;
+
+  Sha256.prototype.arrayBuffer = function () {
+    this.finalize();
+
+    var buffer = new ArrayBuffer(this.is224 ? 28 : 32);
+    var dataView = new DataView(buffer);
+    dataView.setUint32(0, this.h0);
+    dataView.setUint32(4, this.h1);
+    dataView.setUint32(8, this.h2);
+    dataView.setUint32(12, this.h3);
+    dataView.setUint32(16, this.h4);
+    dataView.setUint32(20, this.h5);
+    dataView.setUint32(24, this.h6);
+    if (!this.is224) {
+      dataView.setUint32(28, this.h7);
+    }
+    return buffer;
+  };
+
+  function HmacSha256(key, is224, sharedMemory) {
+    var i, type = typeof key;
+    if (type === 'string') {
+      var bytes = [], length = key.length, index = 0, code;
+      for (i = 0; i < length; ++i) {
+        code = key.charCodeAt(i);
+        if (code < 0x80) {
+          bytes[index++] = code;
+        } else if (code < 0x800) {
+          bytes[index++] = (0xc0 | (code >>> 6));
+          bytes[index++] = (0x80 | (code & 0x3f));
+        } else if (code < 0xd800 || code >= 0xe000) {
+          bytes[index++] = (0xe0 | (code >>> 12));
+          bytes[index++] = (0x80 | ((code >>> 6) & 0x3f));
+          bytes[index++] = (0x80 | (code & 0x3f));
+        } else {
+          code = 0x10000 + (((code & 0x3ff) << 10) | (key.charCodeAt(++i) & 0x3ff));
+          bytes[index++] = (0xf0 | (code >>> 18));
+          bytes[index++] = (0x80 | ((code >>> 12) & 0x3f));
+          bytes[index++] = (0x80 | ((code >>> 6) & 0x3f));
+          bytes[index++] = (0x80 | (code & 0x3f));
+        }
+      }
+      key = bytes;
+    } else {
+      if (type === 'object') {
+        if (key === null) {
+          throw new Error(ERROR);
+        } else if (ARRAY_BUFFER && key.constructor === ArrayBuffer) {
+          key = new Uint8Array(key);
+        } else if (!Array.isArray(key)) {
+          if (!ARRAY_BUFFER || !ArrayBuffer.isView(key)) {
+            throw new Error(ERROR);
+          }
+        }
+      } else {
+        throw new Error(ERROR);
+      }
+    }
+
+    if (key.length > 64) {
+      key = (new Sha256(is224, true)).update(key).array();
+    }
+
+    var oKeyPad = [], iKeyPad = [];
+    for (i = 0; i < 64; ++i) {
+      var b = key[i] || 0;
+      oKeyPad[i] = 0x5c ^ b;
+      iKeyPad[i] = 0x36 ^ b;
+    }
+
+    Sha256.call(this, is224, sharedMemory);
+
+    this.update(iKeyPad);
+    this.oKeyPad = oKeyPad;
+    this.inner = true;
+    this.sharedMemory = sharedMemory;
+  }
+  HmacSha256.prototype = new Sha256();
+
+  HmacSha256.prototype.finalize = function () {
+    Sha256.prototype.finalize.call(this);
+    if (this.inner) {
+      this.inner = false;
+      var innerHash = this.array();
+      Sha256.call(this, this.is224, this.sharedMemory);
+      this.update(this.oKeyPad);
+      this.update(innerHash);
+      Sha256.prototype.finalize.call(this);
+    }
+  };
+
+  var exports = createMethod();
+  exports.sha256 = exports;
+  exports.sha224 = createMethod(true);
+  exports.sha256.hmac = createHmacMethod();
+  exports.sha224.hmac = createHmacMethod(true);
+
+  if (COMMON_JS) {
+    module.exports = exports;
+  } else {
+    root.sha256 = exports.sha256;
+    root.sha224 = exports.sha224;
+    if (AMD) {
+      define(function () {
+        return exports;
+      });
+    }
+  }
+})();