Files
certd/packages/libs/lib-huawei/src/lib/APIGW-javascript-sdk-2.0.5/signer.js
2024-07-19 17:22:54 +08:00

502 lines
11 KiB
JavaScript

// HWS API Gateway Signature
(function (root, factory) {
"use strict";
/*global define*/
if (typeof define === "function" && define.amd) {
// AMD
define(["CryptoJS"], function (CryptoJS) {
var crypto_wrapper = {
hmacsha256: function (keyByte, message) {
return CryptoJS.HmacSHA256(message, keyByte).toString(CryptoJS.enc.Hex);
},
HexEncodeSHA256Hash: function (body) {
return CryptoJS.SHA256(body);
},
};
return factory(crypto_wrapper);
});
} else if (typeof wx === "object") {
// wechat
var CryptoJS = require("./js/hmac-sha256.js");
var crypto_wrapper = {
hmacsha256: function (keyByte, message) {
return CryptoJS.HmacSHA256(message, keyByte).toString(CryptoJS.enc.Hex);
},
HexEncodeSHA256Hash: function (body) {
return CryptoJS.SHA256(body);
},
};
module.exports = factory(crypto_wrapper);
} else if (typeof module === "object" && module.exports) {
// Node
var crypto = require("crypto");
var crypto_wrapper = {
hmacsha256: function (keyByte, message) {
return crypto.createHmac("SHA256", keyByte).update(message).digest().toString("hex");
},
HexEncodeSHA256Hash: function (body) {
return crypto.createHash("SHA256").update(body).digest().toString("hex");
},
};
module.exports = factory(crypto_wrapper);
} else {
// Browser
var CryptoJS = root.CryptoJS;
var crypto_wrapper = {
hmacsha256: function (keyByte, message) {
return CryptoJS.HmacSHA256(message, keyByte).toString(CryptoJS.enc.Hex);
},
HexEncodeSHA256Hash: function (body) {
return CryptoJS.SHA256(body);
},
};
root.signer = factory(crypto_wrapper);
}
})(this, function (crypto_wrapper) {
"use strict";
var Algorithm = "SDK-HMAC-SHA256";
var HeaderXDate = "X-Sdk-Date";
var HeaderAuthorization = "Authorization";
var HeaderContentSha256 = "x-sdk-content-sha256";
const hexTable = new Array(256);
for (var i = 0; i < 256; ++i) hexTable[i] = "%" + ((i < 16 ? "0" : "") + i.toString(16)).toUpperCase();
const noEscape = [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0, // 0 - 15
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0, // 16 - 31
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
1,
0, // 32 - 47
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
0,
0, // 48 - 63
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1, // 64 - 79
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
0,
1, // 80 - 95
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1, // 96 - 111
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
0,
0,
0,
1,
0, // 112 - 127
];
// function urlEncode is based on https://github.com/nodejs/node/blob/master/lib/querystring.js
// Copyright Joyent, Inc. and other Node contributors.
function urlEncode(str) {
if (typeof str !== "string") {
if (typeof str === "object") str = String(str);
else str += "";
}
var out = "";
var lastPos = 0;
for (var i = 0; i < str.length; ++i) {
var c = str.charCodeAt(i);
// ASCII
if (c < 0x80) {
if (noEscape[c] === 1) continue;
if (lastPos < i) out += str.slice(lastPos, i);
lastPos = i + 1;
out += hexTable[c];
continue;
}
if (lastPos < i) out += str.slice(lastPos, i);
// Multi-byte characters ...
if (c < 0x800) {
lastPos = i + 1;
out += hexTable[0xc0 | (c >> 6)] + hexTable[0x80 | (c & 0x3f)];
continue;
}
if (c < 0xd800 || c >= 0xe000) {
lastPos = i + 1;
out += hexTable[0xe0 | (c >> 12)] + hexTable[0x80 | ((c >> 6) & 0x3f)] + hexTable[0x80 | (c & 0x3f)];
continue;
}
// Surrogate pair
++i;
if (i >= str.length) throw new errors.URIError("ERR_INVALID_URI");
var c2 = str.charCodeAt(i) & 0x3ff;
lastPos = i + 1;
c = 0x10000 + (((c & 0x3ff) << 10) | c2);
out += hexTable[0xf0 | (c >> 18)] + hexTable[0x80 | ((c >> 12) & 0x3f)] + hexTable[0x80 | ((c >> 6) & 0x3f)] + hexTable[0x80 | (c & 0x3f)];
}
if (lastPos === 0) return str;
if (lastPos < str.length) return out + str.slice(lastPos);
return out;
}
function HttpRequest(method, url, headers, body) {
if (method === undefined) {
this.method = "";
} else {
this.method = method;
}
if (url === undefined) {
this.host = "";
this.uri = "";
this.query = {};
} else {
this.query = {};
var host, path;
var i = url.indexOf("://");
if (i !== -1) {
url = url.substr(i + 3);
}
var i = url.indexOf("?");
if (i !== -1) {
var query_str = url.substr(i + 1);
url = url.substr(0, i);
var spl = query_str.split("&");
for (var i in spl) {
var kv = spl[i];
var index = kv.indexOf("=");
var key, value;
if (index >= 0) {
key = kv.substr(0, index);
value = kv.substr(index + 1);
} else {
key = kv;
value = "";
}
if (key !== "") {
key = decodeURI(key);
value = decodeURI(value);
if (this.query[key] === undefined) {
this.query[key] = [value];
} else {
this.query[key].push(value);
}
}
}
}
var i = url.indexOf("/");
if (i === -1) {
host = url;
path = "/";
} else {
host = url.substr(0, i);
path = url.substr(i);
}
this.host = host;
this.uri = decodeURI(path);
}
if (headers === undefined) {
this.headers = {};
} else {
this.headers = headers;
}
if (body === undefined) {
this.body = "";
} else {
this.body = body;
}
}
function findHeader(r, header) {
for (var k in r.headers) {
if (k.toLowerCase() === header.toLowerCase()) {
return r.headers[k];
}
}
return null;
}
// Build a CanonicalRequest from a regular request string
//
// CanonicalRequest =
// HTTPRequestMethod + '\n' +
// CanonicalURI + '\n' +
// CanonicalQueryString + '\n' +
// CanonicalHeaders + '\n' +
// SignedHeaders + '\n' +
// HexEncode(Hash(RequestPayload))
function CanonicalRequest(r, signedHeaders) {
var hexencode = findHeader(r, HeaderContentSha256);
if (hexencode === null) {
var data = RequestPayload(r);
hexencode = crypto_wrapper.HexEncodeSHA256Hash(data);
}
return (
r.method +
"\n" +
CanonicalURI(r) +
"\n" +
CanonicalQueryString(r) +
"\n" +
CanonicalHeaders(r, signedHeaders) +
"\n" +
signedHeaders.join(";") +
"\n" +
hexencode
);
}
function CanonicalURI(r) {
var pattens = r.uri.split("/");
var uri = [];
for (var k in pattens) {
var v = pattens[k];
uri.push(urlEncode(v));
}
var urlpath = uri.join("/");
if (urlpath[urlpath.length - 1] !== "/") {
urlpath = urlpath + "/";
}
//r.uri = urlpath
return urlpath;
}
function CanonicalQueryString(r) {
var keys = [];
for (var key in r.query) {
keys.push(key);
}
keys.sort();
var a = [];
for (var i in keys) {
var key = urlEncode(keys[i]);
var value = r.query[keys[i]];
if (Array.isArray(value)) {
value.sort();
for (var iv in value) {
a.push(key + "=" + urlEncode(value[iv]));
}
} else {
a.push(key + "=" + urlEncode(value));
}
}
return a.join("&");
}
function CanonicalHeaders(r, signedHeaders) {
var headers = {};
for (var key in r.headers) {
headers[key.toLowerCase()] = r.headers[key];
}
var a = [];
for (var i in signedHeaders) {
var value = headers[signedHeaders[i]];
a.push(signedHeaders[i] + ":" + value.trim());
}
return a.join("\n") + "\n";
}
function SignedHeaders(r) {
var a = [];
for (var key in r.headers) {
a.push(key.toLowerCase());
}
a.sort();
return a;
}
function RequestPayload(r) {
return r.body;
}
// Create a "String to Sign".
function StringToSign(canonicalRequest, t) {
var bytes = crypto_wrapper.HexEncodeSHA256Hash(canonicalRequest);
return Algorithm + "\n" + t + "\n" + bytes;
}
// Create the HWS Signature.
function SignStringToSign(stringToSign, signingKey) {
return crypto_wrapper.hmacsha256(signingKey, stringToSign);
}
// Get the finalized value for the "Authorization" header. The signature
// parameter is the output from SignStringToSign
function AuthHeaderValue(signature, Key, signedHeaders) {
return Algorithm + " Access=" + Key + ", SignedHeaders=" + signedHeaders.join(";") + ", Signature=" + signature;
}
function twoChar(s) {
if (s >= 10) {
return "" + s;
} else {
return "0" + s;
}
}
function getTime() {
var date = new Date();
return (
"" +
date.getUTCFullYear() +
twoChar(date.getUTCMonth() + 1) +
twoChar(date.getUTCDate()) +
"T" +
twoChar(date.getUTCHours()) +
twoChar(date.getUTCMinutes()) +
twoChar(date.getUTCSeconds()) +
"Z"
);
}
function Signer() {
this.Key = "";
this.Secret = "";
}
Signer.prototype.Sign = function (r) {
var headerTime = findHeader(r, HeaderXDate);
if (headerTime === null) {
headerTime = getTime();
r.headers[HeaderXDate] = headerTime;
}
if (r.method !== "PUT" && r.method !== "PATCH" && r.method !== "POST") {
r.body = "";
}
var queryString = CanonicalQueryString(r);
if (queryString !== "") {
queryString = "?" + queryString;
}
var options = {
hostname: r.host,
path: encodeURI(r.uri) + queryString,
method: r.method,
headers: r.headers,
};
if (findHeader(r, "host") === null) {
r.headers.host = r.host;
}
var signedHeaders = SignedHeaders(r);
var canonicalRequest = CanonicalRequest(r, signedHeaders);
var stringToSign = StringToSign(canonicalRequest, headerTime);
var signature = SignStringToSign(stringToSign, this.Secret);
options.headers[HeaderAuthorization] = AuthHeaderValue(signature, this.Key, signedHeaders);
return options;
};
return {
HttpRequest: HttpRequest,
Signer: Signer,
urlEncode: urlEncode,
findHeader: findHeader,
SignedHeaders: SignedHeaders,
CanonicalRequest: CanonicalRequest,
StringToSign: StringToSign,
};
});