http-auth-js
Version:
web digest auth
648 lines (588 loc) • 23.7 kB
JavaScript
function md5(instring){
var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */
/*
* These are the functions you'll usually want to call
* They take string arguments and return either hex or base-64 encoded strings
*/
function hex_md5(s) { return rstr2hex(rstr_md5(str2rstr_utf8(s))); }
function b64_md5(s) { return rstr2b64(rstr_md5(str2rstr_utf8(s))); }
function any_md5(s, e) { return rstr2any(rstr_md5(str2rstr_utf8(s)), e); }
function hex_hmac_md5(k, d)
{ return rstr2hex(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); }
function b64_hmac_md5(k, d)
{ return rstr2b64(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); }
function any_hmac_md5(k, d, e)
{ return rstr2any(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d)), e); }
/*
* Perform a simple self-test to see if the VM is working
*/
function md5_vm_test()
{
return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72";
}
/*
* Calculate the MD5 of a raw string
*/
function rstr_md5(s)
{
return binl2rstr(binl_md5(rstr2binl(s), s.length * 8));
}
/*
* Calculate the HMAC-MD5, of a key and some data (raw strings)
*/
function rstr_hmac_md5(key, data)
{
var bkey = rstr2binl(key);
if(bkey.length > 16) bkey = binl_md5(bkey, key.length * 8);
var ipad = Array(16), opad = Array(16);
for(var i = 0; i < 16; i++)
{
ipad[i] = bkey[i] ^ 0x36363636;
opad[i] = bkey[i] ^ 0x5C5C5C5C;
}
var hash = binl_md5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
return binl2rstr(binl_md5(opad.concat(hash), 512 + 128));
}
/*
* Convert a raw string to a hex string
*/
function rstr2hex(input)
{
try { hexcase } catch(e) { hexcase=0; }
var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
var output = "";
var x;
for(var i = 0; i < input.length; i++)
{
x = input.charCodeAt(i);
output += hex_tab.charAt((x >>> 4) & 0x0F)
+ hex_tab.charAt( x & 0x0F);
}
return output;
}
/*
* Convert a raw string to a base-64 string
*/
function rstr2b64(input)
{
try { b64pad } catch(e) { b64pad=''; }
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var output = "";
var len = input.length;
for(var i = 0; i < len; i += 3)
{
var triplet = (input.charCodeAt(i) << 16)
| (i + 1 < len ? input.charCodeAt(i+1) << 8 : 0)
| (i + 2 < len ? input.charCodeAt(i+2) : 0);
for(var j = 0; j < 4; j++)
{
if(i * 8 + j * 6 > input.length * 8) output += b64pad;
else output += tab.charAt((triplet >>> 6*(3-j)) & 0x3F);
}
}
return output;
}
/*
* Convert a raw string to an arbitrary string encoding
*/
function rstr2any(input, encoding)
{
var divisor = encoding.length;
var i, j, q, x, quotient;
/* Convert to an array of 16-bit big-endian values, forming the dividend */
var dividend = Array(Math.ceil(input.length / 2));
for(i = 0; i < dividend.length; i++)
{
dividend[i] = (input.charCodeAt(i * 2) << 8) | input.charCodeAt(i * 2 + 1);
}
/*
* Repeatedly perform a long division. The binary array forms the dividend,
* the length of the encoding is the divisor. Once computed, the quotient
* forms the dividend for the next step. All remainders are stored for later
* use.
*/
var full_length = Math.ceil(input.length * 8 /
(Math.log(encoding.length) / Math.log(2)));
var remainders = Array(full_length);
for(j = 0; j < full_length; j++)
{
quotient = Array();
x = 0;
for(i = 0; i < dividend.length; i++)
{
x = (x << 16) + dividend[i];
q = Math.floor(x / divisor);
x -= q * divisor;
if(quotient.length > 0 || q > 0)
quotient[quotient.length] = q;
}
remainders[j] = x;
dividend = quotient;
}
/* Convert the remainders to the output string */
var output = "";
for(i = remainders.length - 1; i >= 0; i--)
output += encoding.charAt(remainders[i]);
return output;
}
/*
* Encode a string as utf-8.
* For efficiency, this assumes the input is valid utf-16.
*/
function str2rstr_utf8(input)
{
var output = "";
var i = -1;
var x, y;
while(++i < input.length)
{
/* Decode utf-16 surrogate pairs */
x = input.charCodeAt(i);
y = i + 1 < input.length ? input.charCodeAt(i + 1) : 0;
if(0xD800 <= x && x <= 0xDBFF && 0xDC00 <= y && y <= 0xDFFF)
{
x = 0x10000 + ((x & 0x03FF) << 10) + (y & 0x03FF);
i++;
}
/* Encode output as utf-8 */
if(x <= 0x7F)
output += String.fromCharCode(x);
else if(x <= 0x7FF)
output += String.fromCharCode(0xC0 | ((x >>> 6 ) & 0x1F),
0x80 | ( x & 0x3F));
else if(x <= 0xFFFF)
output += String.fromCharCode(0xE0 | ((x >>> 12) & 0x0F),
0x80 | ((x >>> 6 ) & 0x3F),
0x80 | ( x & 0x3F));
else if(x <= 0x1FFFFF)
output += String.fromCharCode(0xF0 | ((x >>> 18) & 0x07),
0x80 | ((x >>> 12) & 0x3F),
0x80 | ((x >>> 6 ) & 0x3F),
0x80 | ( x & 0x3F));
}
return output;
}
/*
* Encode a string as utf-16
*/
function str2rstr_utf16le(input)
{
var output = "";
for(var i = 0; i < input.length; i++)
output += String.fromCharCode( input.charCodeAt(i) & 0xFF,
(input.charCodeAt(i) >>> 8) & 0xFF);
return output;
}
function str2rstr_utf16be(input)
{
var output = "";
for(var i = 0; i < input.length; i++)
output += String.fromCharCode((input.charCodeAt(i) >>> 8) & 0xFF,
input.charCodeAt(i) & 0xFF);
return output;
}
/*
* Convert a raw string to an array of little-endian words
* Characters >255 have their high-byte silently ignored.
*/
function rstr2binl(input)
{
var output = Array(input.length >> 2);
for(var i = 0; i < output.length; i++)
output[i] = 0;
for(var i = 0; i < input.length * 8; i += 8)
output[i>>5] |= (input.charCodeAt(i / 8) & 0xFF) << (i%32);
return output;
}
/*
* Convert an array of little-endian words to a string
*/
function binl2rstr(input)
{
var output = "";
for(var i = 0; i < input.length * 32; i += 8)
output += String.fromCharCode((input[i>>5] >>> (i % 32)) & 0xFF);
return output;
}
/*
* Calculate the MD5 of an array of little-endian words, and a bit length.
*/
function binl_md5(x, len)
{
/* append padding */
x[len >> 5] |= 0x80 << ((len) % 32);
x[(((len + 64) >>> 9) << 4) + 14] = len;
var a = 1732584193;
var b = -271733879;
var c = -1732584194;
var d = 271733878;
for(var i = 0; i < x.length; i += 16)
{
var olda = a;
var oldb = b;
var oldc = c;
var oldd = d;
a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);
a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
a = safe_add(a, olda);
b = safe_add(b, oldb);
c = safe_add(c, oldc);
d = safe_add(d, oldd);
}
return Array(a, b, c, d);
}
/*
* These functions implement the four basic operations the algorithm uses.
*/
function md5_cmn(q, a, b, x, s, t)
{
return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}
/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
function safe_add(x, y)
{
var lsw = (x & 0xFFFF) + (y & 0xFFFF);
var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return (msw << 16) | (lsw & 0xFFFF);
}
/*
* Bitwise rotate a 32-bit number to the left.
*/
function bit_rol(num, cnt)
{
return (num << cnt) | (num >>> (32 - cnt));
}
return hex_md5(instring);
}
let httpAuth = {
ajax: function (settings) {
/*
settings与$.ajax使用方式相同
{
url : "http://ip:port/path", //请求地址
type: "POST", //请求方式，默认GET
async: false, //是否异步，默认true
data : "", //发送到服务器的数据
username: "", //用户名
password: "", //密码
timeout: 3000, //超时时间，毫秒
contentType: "application/json; charset=UTF-8", //请求类型
context: window, //回调函数上下文
success : function(result) { //请求成功回调函数
console.log(result);
},
error: function(xhr) { //请求失败回调函数
console.log(xhr);
},
complete: function(xhr) { //请求完成后回调函数 (请求成功或失败之后均调用)
console.log(xhr);
},
headers: {key1: "value1", key2: "value2"} //请求时需要附加的Header
authType: "Digest", //认证类型，"Digest"或"Basic"
}
*/
var method = settings.type ? settings.type.toUpperCase() : "GET";
var url = settings.url;
var async = settings.hasOwnProperty("async") ? settings.async : true;
var username = settings.username ? settings.username : "";
var password = settings.password ? settings.password : "";
var urlMD5 = this._md5(url);
var dataStr = "";
if (typeof settings.data == "string") {
dataStr = settings.data;
} else if (typeof settings.data == "object") {
dataStr = JSON.stringify(settings.data);
}
settings._method = method;
settings._entityBody = dataStr;
settings._wwwaKey = "HttpAuth_" + urlMD5 + "_wwwa";
settings._ncKey = "HttpAuth_" + urlMD5 + "_nc";
settings.headers = settings.headers || {};
var xhr = new XMLHttpRequest();
xhr.open(method, url, async, username, password);
this._setHeader(xhr, settings);
if (settings.timeout) {
xhr.timeout = settings.timeout;
}
xhr._that = this;
xhr._settings = settings;
xhr.onreadystatechange = this._stateChange;
xhr.send(dataStr);
this._log("ajax requesting..., url=" + url + ", dataStr=" + dataStr);
},
_setHeader: function (xhr, settings) {
if (settings.authType) {
var wwwAuthenticate = localStorage.getItem(settings._wwwaKey);
console.log(wwwAuthenticate)
var authorization = "*";
if (wwwAuthenticate) {
authorization = this._getAuthorization(wwwAuthenticate, settings);
}
xhr.setRequestHeader("Authorization", authorization);
}
if (settings.contentType) {
xhr.setRequestHeader("Content-Type", settings.contentType);
}
var headerNames = Object.getOwnPropertyNames(settings.headers);
for (var i = 0; i < headerNames.length; i++) {
xhr.setRequestHeader(headerNames[i], settings.headers[headerNames[i]]);
}
},
_stateChange: function () {
if (this.readyState == 4) {
var that = this._that;
var settings = this._settings;
console.log(this)
if (this.status == 401) {
if (settings.hasOwnProperty("_auth401")) {
that._log("401 auth fail", "error");
that._log(settings);
} else {
var wwwAuthenticate = this.getResponseHeader("WWW-Authenticate");
console.log(wwwAuthenticate)
localStorage.setItem(settings._wwwaKey, wwwAuthenticate);
localStorage.setItem(settings._ncKey, 0);
that._log("401 auth", "warn");
settings._auth401 = 1;
settings.authType = that._getAuthType(wwwAuthenticate);
that.ajax(settings);
}
} else {
settings._auth401 && that._log("401 auth ok", "warn");
that._log("ajax status=" + this.status + ", responseText=" + this.responseText);
if (this.status == 200) {
if (settings.success) {
// settings.context ? settings.success.call(settings.context) : settings.success();
settings.success(this.response)
}
} else {
if (settings.error) {
// settings.context ? settings.error.call(settings.context) : settings.error();
settings.error(this.response)
}
}
if (settings.error) {
// settings.context ? settings.complete.call(settings.context) : settings.complete();
settings.complete(this.response)
}
}
}
},
_getAuthorization: function (wwwAuthenticate, settings) { // 计算Authorization
var authorization = "";
if (settings.authType == "Basic") {
authorization = this._getBasicAuthorization(wwwAuthenticate, settings);
} else if (settings.authType == "Digest") {
authorization = this._getDigestAuthorization(wwwAuthenticate, settings);
}
return authorization;
},
_getBasicAuthorization: function (wwwAuthenticate, settings) {
var plain = settings.username + ":" + settings.password;
var cipher = btoa(plain);
this._log("plain=" + plain + ", cipher=" + cipher);
var authorization = "Basic " + cipher;
return authorization;
},
_getDigestAuthorization: function (wwwAuthenticate, settings) {
console.log(this)
var authObj = this._getAuthObject(wwwAuthenticate);
var authType = authObj.authType;
var username = settings.username;
var realm = authObj.realm;
var nonce = authObj.nonce;
var digestURI = this._extractUri(settings.url);
var opaque = authObj.opaque;
var qop = authObj.qop;
var nonceCount = this._getNonceCount(settings);
var clientNonce = this._getClientNonce();
var password = settings.password;
var method = settings._method;
var entityBody = settings._entityBody;
var response, ha1, ha2, a1, a2, plain;
a1 = username + ":" + realm + ":" + password;
ha1 = this._md5(a1);
this._log("a1=" + a1 + ", ha1=" + ha1);
if (qop == "auth-int") {
a2 = method + ":" + digestURI + ":" + this.md5(entityBody);
} else {
a2 = method + ":" + digestURI;
}
ha2 = this._md5(a2);
this._log("a2=" + a2 + ", ha2=" + ha2);
if (qop == "auth-int" || qop == "auth") {
plain = ha1 + ":" + nonce + ":" + nonceCount + ":" + clientNonce + ":" + qop + ":" + ha2;
} else {
plain = ha1 + ":" + nonce + ":" + ha2;
}
response = this._md5(plain);
this._log("plain=" + plain + ", response=" + response);
var authorization = "Digest ";
authorization += 'username="' + username + '", ';
authorization += 'realm="' + realm + '", ';
authorization += 'nonce="' + nonce + '", ';
authorization += 'uri="' + digestURI + '", ';
authorization += 'response="' + response + '", ';
authorization += 'opaque="' + opaque + '", ';
authorization += 'qop=' + qop + ', ';
authorization += 'nc=' + nonceCount + ', ';
authorization += 'cnonce="' + clientNonce + '"';
return authorization;
},
_getAuthObject: function (wwwAuthenticate) {
var type = this._getAuthType(wwwAuthenticate);
var obj;
console.log(type)
if (type == "Digest") {
obj = {
authType: type,
realm: this._getAuthItem(wwwAuthenticate, "realm"),
qop: this._getAuthItem(wwwAuthenticate, "qop"),
nonce: this._getAuthItem(wwwAuthenticate, "nonce"),
opaque: this._getAuthItem(wwwAuthenticate, "opaque"),
algorithm: this._getAuthItem(wwwAuthenticate, "algorithm")
};
} else if (type == "Basic") {
obj = {
authType: type,
realm: this._getAuthItem(wwwAuthenticate, "realm")
};
}
console.log(obj)
return obj;
},
_getAuthType: function (wwwAuthenticate) {
return 'Digest'
},
_getAuthItem: function (str, name) {
var arr = str.match(name + '=' + '"(.+?)"');
var value = "";
if (arr && arr.length == 2) {
value = arr[1];
}
return value;
},
_extractUri: function (fullURL) {
var uri = fullURL;
if (fullURL.substr(0, 4) == "http") {
var searchPos = fullURL.indexOf("://") + "://".length;
var rootPos = fullURL.indexOf("/", searchPos);
uri = fullURL.substring(rootPos);
}
return uri;
},
_getClientNonce: function () {
var clientNonce = "cn" + String(Date.now());
return clientNonce;
},
_getNonceCount: function (settings) {
var nc = Number(localStorage.getItem(settings._ncKey));
nc = nc + 1;
localStorage.setItem(settings._ncKey, nc);
var ncStr = String(nc);
var len = 8 - ncStr.length;
for (var i = 0; i < len; i++) {
ncStr = "0" + ncStr;
}
return ncStr;
},
_md5: function (str) {
return md5(str);
},
_logSwitch: false, // 日志开关
_log: function (msg, type) {
if (!this._logSwitch) {
return;
}
if (type == "warn") {
console.warn(msg);
} else if (type == "error") {
console.error(msg);
} else {
console.log(msg);
}
}
}
export default httpAuth