Initial commit of library code from: http://code.google.com/p/oauth/source/browse/code/javascript/
I'm basic this client on the pre-existing OAuth code.
This commit is contained in:
ciaranj
commit
d15500781e
548
lib/oauth.js
Normal file
548
lib/oauth.js
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@ -0,0 +1,548 @@
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/*
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* Copyright 2008 Netflix, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Here's some JavaScript software for implementing OAuth.
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This isn't as useful as you might hope. OAuth is based around
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allowing tools and websites to talk to each other. However,
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JavaScript running in web browsers is hampered by security
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restrictions that prevent code running on one website from
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accessing data stored or served on another.
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Before you start hacking, make sure you understand the limitations
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posed by cross-domain XMLHttpRequest.
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On the bright side, some platforms use JavaScript as their
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language, but enable the programmer to access other web sites.
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Examples include Google Gadgets, and Microsoft Vista Sidebar.
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For those platforms, this library should come in handy.
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*/
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// The HMAC-SHA1 signature method calls b64_hmac_sha1, defined by
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// http://pajhome.org.uk/crypt/md5/sha1.js
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/* An OAuth message is represented as an object like this:
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{method: "GET", action: "http://server.com/path", parameters: ...}
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The parameters may be either a map {name: value, name2: value2}
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or an Array of name-value pairs [[name, value], [name2, value2]].
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The latter representation is more powerful: it supports parameters
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in a specific sequence, or several parameters with the same name;
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for example [["a", 1], ["b", 2], ["a", 3]].
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Parameter names and values are NOT percent-encoded in an object.
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They must be encoded before transmission and decoded after reception.
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For example, this message object:
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{method: "GET", action: "http://server/path", parameters: {p: "x y"}}
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... can be transmitted as an HTTP request that begins:
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GET /path?p=x%20y HTTP/1.0
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(This isn't a valid OAuth request, since it lacks a signature etc.)
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Note that the object "x y" is transmitted as x%20y. To encode
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parameters, you can call OAuth.addToURL, OAuth.formEncode or
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OAuth.getAuthorization.
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This message object model harmonizes with the browser object model for
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input elements of an form, whose value property isn't percent encoded.
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The browser encodes each value before transmitting it. For example,
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see consumer.setInputs in example/consumer.js.
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*/
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/* This script needs to know what time it is. By default, it uses the local
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clock (new Date), which is apt to be inaccurate in browsers. To do
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better, you can load this script from a URL whose query string contains
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an oauth_timestamp parameter, whose value is a current Unix timestamp.
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For example, when generating the enclosing document using PHP:
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<script src="oauth.js?oauth_timestamp=<?=time()?>" ...
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Another option is to call OAuth.correctTimestamp with a Unix timestamp.
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*/
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var OAuth; if (OAuth == null) OAuth = {};
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OAuth.setProperties = function setProperties(into, from) {
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if (into != null && from != null) {
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for (var key in from) {
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into[key] = from[key];
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}
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}
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return into;
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}
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OAuth.setProperties(OAuth, // utility functions
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{
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percentEncode: function percentEncode(s) {
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if (s == null) {
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return "";
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}
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if (s instanceof Array) {
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var e = "";
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for (var i = 0; i < s.length; ++s) {
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if (e != "") e += '&';
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e += OAuth.percentEncode(s[i]);
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}
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return e;
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}
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s = encodeURIComponent(s);
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// Now replace the values which encodeURIComponent doesn't do
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// encodeURIComponent ignores: - _ . ! ~ * ' ( )
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// OAuth dictates the only ones you can ignore are: - _ . ~
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// Source: http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Functions:encodeURIComponent
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s = s.replace(/\!/g, "%21");
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s = s.replace(/\*/g, "%2A");
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s = s.replace(/\'/g, "%27");
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s = s.replace(/\(/g, "%28");
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s = s.replace(/\)/g, "%29");
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return s;
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}
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,
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decodePercent: function decodePercent(s) {
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if (s != null) {
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// Handle application/x-www-form-urlencoded, which is defined by
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// http://www.w3.org/TR/html4/interact/forms.html#h-17.13.4.1
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s = s.replace(/\+/g, " ");
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}
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return decodeURIComponent(s);
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}
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,
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/** Convert the given parameters to an Array of name-value pairs. */
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getParameterList: function getParameterList(parameters) {
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if (parameters == null) {
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return [];
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}
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if (typeof parameters != "object") {
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return OAuth.decodeForm(parameters + "");
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}
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if (parameters instanceof Array) {
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return parameters;
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}
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var list = [];
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for (var p in parameters) {
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list.push([p, parameters[p]]);
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}
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return list;
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}
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,
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/** Convert the given parameters to a map from name to value. */
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getParameterMap: function getParameterMap(parameters) {
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if (parameters == null) {
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return {};
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}
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if (typeof parameters != "object") {
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return OAuth.getParameterMap(OAuth.decodeForm(parameters + ""));
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}
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if (parameters instanceof Array) {
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var map = {};
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for (var p = 0; p < parameters.length; ++p) {
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var key = parameters[p][0];
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if (map[key] === undefined) { // first value wins
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map[key] = parameters[p][1];
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}
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}
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return map;
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}
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return parameters;
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}
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,
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getParameter: function getParameter(parameters, name) {
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if (parameters instanceof Array) {
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for (var p = 0; p < parameters.length; ++p) {
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if (parameters[p][0] == name) {
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return parameters[p][1]; // first value wins
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}
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}
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} else {
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return OAuth.getParameterMap(parameters)[name];
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}
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return null;
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}
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,
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formEncode: function formEncode(parameters) {
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var form = "";
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var list = OAuth.getParameterList(parameters);
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for (var p = 0; p < list.length; ++p) {
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var value = list[p][1];
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if (value == null) value = "";
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if (form != "") form += '&';
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form += OAuth.percentEncode(list[p][0])
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+'='+ OAuth.percentEncode(value);
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}
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return form;
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}
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,
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decodeForm: function decodeForm(form) {
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var list = [];
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var nvps = form.split('&');
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for (var n = 0; n < nvps.length; ++n) {
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var nvp = nvps[n];
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if (nvp == "") {
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continue;
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}
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var equals = nvp.indexOf('=');
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var name;
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var value;
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if (equals < 0) {
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name = OAuth.decodePercent(nvp);
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value = null;
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} else {
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name = OAuth.decodePercent(nvp.substring(0, equals));
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value = OAuth.decodePercent(nvp.substring(equals + 1));
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}
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list.push([name, value]);
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}
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return list;
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}
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,
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setParameter: function setParameter(message, name, value) {
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var parameters = message.parameters;
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if (parameters instanceof Array) {
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for (var p = 0; p < parameters.length; ++p) {
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if (parameters[p][0] == name) {
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if (value === undefined) {
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parameters.splice(p, 1);
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} else {
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parameters[p][1] = value;
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value = undefined;
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}
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}
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}
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if (value !== undefined) {
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parameters.push([name, value]);
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}
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} else {
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parameters = OAuth.getParameterMap(parameters);
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parameters[name] = value;
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message.parameters = parameters;
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}
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}
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,
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setParameters: function setParameters(message, parameters) {
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var list = OAuth.getParameterList(parameters);
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for (var i = 0; i < list.length; ++i) {
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OAuth.setParameter(message, list[i][0], list[i][1]);
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}
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}
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,
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/** Fill in parameters to help construct a request message.
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This function doesn't fill in every parameter.
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The accessor object should be like:
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{consumerKey:'foo', consumerSecret:'bar', accessorSecret:'nurn', token:'krelm', tokenSecret:'blah'}
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The accessorSecret property is optional.
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*/
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completeRequest: function completeRequest(message, accessor) {
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if (message.method == null) {
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message.method = "GET";
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}
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var map = OAuth.getParameterMap(message.parameters);
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if (map.oauth_consumer_key == null) {
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OAuth.setParameter(message, "oauth_consumer_key", accessor.consumerKey || "");
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}
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if (map.oauth_token == null && accessor.token != null) {
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OAuth.setParameter(message, "oauth_token", accessor.token);
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}
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if (map.oauth_version == null) {
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OAuth.setParameter(message, "oauth_version", "1.0");
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}
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if (map.oauth_timestamp == null) {
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OAuth.setParameter(message, "oauth_timestamp", OAuth.timestamp());
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}
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if (map.oauth_nonce == null) {
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OAuth.setParameter(message, "oauth_nonce", OAuth.nonce(6));
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}
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OAuth.SignatureMethod.sign(message, accessor);
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}
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,
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setTimestampAndNonce: function setTimestampAndNonce(message) {
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OAuth.setParameter(message, "oauth_timestamp", OAuth.timestamp());
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OAuth.setParameter(message, "oauth_nonce", OAuth.nonce(6));
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}
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,
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addToURL: function addToURL(url, parameters) {
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newURL = url;
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if (parameters != null) {
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var toAdd = OAuth.formEncode(parameters);
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if (toAdd.length > 0) {
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var q = url.indexOf('?');
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if (q < 0) newURL += '?';
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else newURL += '&';
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newURL += toAdd;
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}
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}
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return newURL;
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}
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,
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/** Construct the value of the Authorization header for an HTTP request. */
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getAuthorizationHeader: function getAuthorizationHeader(realm, parameters) {
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var header = 'OAuth realm="' + OAuth.percentEncode(realm) + '"';
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var list = OAuth.getParameterList(parameters);
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for (var p = 0; p < list.length; ++p) {
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var parameter = list[p];
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var name = parameter[0];
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if (name.indexOf("oauth_") == 0) {
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header += ',' + OAuth.percentEncode(name) + '="' + OAuth.percentEncode(parameter[1]) + '"';
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}
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}
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return header;
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}
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,
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/** Correct the time using a parameter from the URL from which the last script was loaded. */
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correctTimestampFromSrc: function correctTimestampFromSrc(parameterName) {
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parameterName = parameterName || "oauth_timestamp";
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var scripts = document.getElementsByTagName('script');
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if (scripts == null || !scripts.length) return;
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var src = scripts[scripts.length-1].src;
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if (!src) return;
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var q = src.indexOf("?");
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if (q < 0) return;
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parameters = OAuth.getParameterMap(OAuth.decodeForm(src.substring(q+1)));
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var t = parameters[parameterName];
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if (t == null) return;
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OAuth.correctTimestamp(t);
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}
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,
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/** Generate timestamps starting with the given value. */
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correctTimestamp: function correctTimestamp(timestamp) {
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OAuth.timeCorrectionMsec = (timestamp * 1000) - (new Date()).getTime();
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}
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,
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/** The difference between the correct time and my clock. */
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timeCorrectionMsec: 0
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,
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timestamp: function timestamp() {
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var t = (new Date()).getTime() + OAuth.timeCorrectionMsec;
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return Math.floor(t / 1000);
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}
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,
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nonce: function nonce(length) {
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var chars = OAuth.nonce.CHARS;
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var result = "";
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for (var i = 0; i < length; ++i) {
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var rnum = Math.floor(Math.random() * chars.length);
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result += chars.substring(rnum, rnum+1);
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}
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return result;
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||||
}
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});
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OAuth.nonce.CHARS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
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/** Define a constructor function,
|
||||
without causing trouble to anyone who was using it as a namespace.
|
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That is, if parent[name] already existed and had properties,
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copy those properties into the new constructor.
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*/
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OAuth.declareClass = function declareClass(parent, name, newConstructor) {
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var previous = parent[name];
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parent[name] = newConstructor;
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if (newConstructor != null && previous != null) {
|
||||
for (var key in previous) {
|
||||
if (key != "prototype") {
|
||||
newConstructor[key] = previous[key];
|
||||
}
|
||||
}
|
||||
}
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return newConstructor;
|
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}
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/** An abstract algorithm for signing messages. */
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OAuth.declareClass(OAuth, "SignatureMethod", function OAuthSignatureMethod(){});
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OAuth.setProperties(OAuth.SignatureMethod.prototype, // instance members
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{
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/** Add a signature to the message. */
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sign: function sign(message) {
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var baseString = OAuth.SignatureMethod.getBaseString(message);
|
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var signature = this.getSignature(baseString);
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||||
OAuth.setParameter(message, "oauth_signature", signature);
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return signature; // just in case someone's interested
|
||||
}
|
||||
,
|
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/** Set the key string for signing. */
|
||||
initialize: function initialize(name, accessor) {
|
||||
var consumerSecret;
|
||||
if (accessor.accessorSecret != null
|
||||
&& name.length > 9
|
||||
&& name.substring(name.length-9) == "-Accessor")
|
||||
{
|
||||
consumerSecret = accessor.accessorSecret;
|
||||
} else {
|
||||
consumerSecret = accessor.consumerSecret;
|
||||
}
|
||||
this.key = OAuth.percentEncode(consumerSecret)
|
||||
+"&"+ OAuth.percentEncode(accessor.tokenSecret);
|
||||
}
|
||||
});
|
||||
|
||||
/* SignatureMethod expects an accessor object to be like this:
|
||||
{tokenSecret: "lakjsdflkj...", consumerSecret: "QOUEWRI..", accessorSecret: "xcmvzc..."}
|
||||
The accessorSecret property is optional.
|
||||
*/
|
||||
// Class members:
|
||||
OAuth.setProperties(OAuth.SignatureMethod, // class members
|
||||
{
|
||||
sign: function sign(message, accessor) {
|
||||
var name = OAuth.getParameterMap(message.parameters).oauth_signature_method;
|
||||
if (name == null || name == "") {
|
||||
name = "HMAC-SHA1";
|
||||
OAuth.setParameter(message, "oauth_signature_method", name);
|
||||
}
|
||||
OAuth.SignatureMethod.newMethod(name, accessor).sign(message);
|
||||
}
|
||||
,
|
||||
/** Instantiate a SignatureMethod for the given method name. */
|
||||
newMethod: function newMethod(name, accessor) {
|
||||
var impl = OAuth.SignatureMethod.REGISTERED[name];
|
||||
if (impl != null) {
|
||||
var method = new impl();
|
||||
method.initialize(name, accessor);
|
||||
return method;
|
||||
}
|
||||
var err = new Error("signature_method_rejected");
|
||||
var acceptable = "";
|
||||
for (var r in OAuth.SignatureMethod.REGISTERED) {
|
||||
if (acceptable != "") acceptable += '&';
|
||||
acceptable += OAuth.percentEncode(r);
|
||||
}
|
||||
err.oauth_acceptable_signature_methods = acceptable;
|
||||
throw err;
|
||||
}
|
||||
,
|
||||
/** A map from signature method name to constructor. */
|
||||
REGISTERED : {}
|
||||
,
|
||||
/** Subsequently, the given constructor will be used for the named methods.
|
||||
The constructor will be called with no parameters.
|
||||
The resulting object should usually implement getSignature(baseString).
|
||||
You can easily define such a constructor by calling makeSubclass, below.
|
||||
*/
|
||||
registerMethodClass: function registerMethodClass(names, classConstructor) {
|
||||
for (var n = 0; n < names.length; ++n) {
|
||||
OAuth.SignatureMethod.REGISTERED[names[n]] = classConstructor;
|
||||
}
|
||||
}
|
||||
,
|
||||
/** Create a subclass of OAuth.SignatureMethod, with the given getSignature function. */
|
||||
makeSubclass: function makeSubclass(getSignatureFunction) {
|
||||
var superClass = OAuth.SignatureMethod;
|
||||
var subClass = function() {
|
||||
superClass.call(this);
|
||||
};
|
||||
subClass.prototype = new superClass();
|
||||
// Delete instance variables from prototype:
|
||||
// delete subclass.prototype... There aren't any.
|
||||
subClass.prototype.getSignature = getSignatureFunction;
|
||||
subClass.prototype.constructor = subClass;
|
||||
return subClass;
|
||||
}
|
||||
,
|
||||
getBaseString: function getBaseString(message) {
|
||||
var URL = message.action;
|
||||
var q = URL.indexOf('?');
|
||||
var parameters;
|
||||
if (q < 0) {
|
||||
parameters = message.parameters;
|
||||
} else {
|
||||
// Combine the URL query string with the other parameters:
|
||||
parameters = OAuth.decodeForm(URL.substring(q + 1));
|
||||
var toAdd = OAuth.getParameterList(message.parameters);
|
||||
for (var a = 0; a < toAdd.length; ++a) {
|
||||
parameters.push(toAdd[a]);
|
||||
}
|
||||
}
|
||||
return OAuth.percentEncode(message.method.toUpperCase())
|
||||
+'&'+ OAuth.percentEncode(OAuth.SignatureMethod.normalizeUrl(URL))
|
||||
+'&'+ OAuth.percentEncode(OAuth.SignatureMethod.normalizeParameters(parameters));
|
||||
}
|
||||
,
|
||||
normalizeUrl: function normalizeUrl(url) {
|
||||
var uri = OAuth.SignatureMethod.parseUri(url);
|
||||
var scheme = uri.protocol.toLowerCase();
|
||||
var authority = uri.authority.toLowerCase();
|
||||
var dropPort = (scheme == "http" && uri.port == 80)
|
||||
|| (scheme == "https" && uri.port == 443);
|
||||
if (dropPort) {
|
||||
// find the last : in the authority
|
||||
var index = authority.lastIndexOf(":");
|
||||
if (index >= 0) {
|
||||
authority = authority.substring(0, index);
|
||||
}
|
||||
}
|
||||
var path = uri.path;
|
||||
if (!path) {
|
||||
path = "/"; // conforms to RFC 2616 section 3.2.2
|
||||
}
|
||||
// we know that there is no query and no fragment here.
|
||||
return scheme + "://" + authority + path;
|
||||
}
|
||||
,
|
||||
parseUri: function parseUri (str) {
|
||||
/* This function was adapted from parseUri 1.2.1
|
||||
http://stevenlevithan.com/demo/parseuri/js/assets/parseuri.js
|
||||
*/
|
||||
var o = {key: ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],
|
||||
parser: {strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@\/]*):?([^:@\/]*))?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/ }};
|
||||
var m = o.parser.strict.exec(str);
|
||||
var uri = {};
|
||||
var i = 14;
|
||||
while (i--) uri[o.key[i]] = m[i] || "";
|
||||
return uri;
|
||||
}
|
||||
,
|
||||
normalizeParameters: function normalizeParameters(parameters) {
|
||||
if (parameters == null) {
|
||||
return "";
|
||||
}
|
||||
var list = OAuth.getParameterList(parameters);
|
||||
var sortable = [];
|
||||
for (var p = 0; p < list.length; ++p) {
|
||||
var nvp = list[p];
|
||||
if (nvp[0] != "oauth_signature") {
|
||||
sortable.push([ OAuth.percentEncode(nvp[0])
|
||||
+ " " // because it comes before any character that can appear in a percentEncoded string.
|
||||
+ OAuth.percentEncode(nvp[1])
|
||||
, nvp]);
|
||||
}
|
||||
}
|
||||
sortable.sort(function(a,b) {
|
||||
if (a[0] < b[0]) return -1;
|
||||
if (a[0] > b[0]) return 1;
|
||||
return 0;
|
||||
});
|
||||
var sorted = [];
|
||||
for (var s = 0; s < sortable.length; ++s) {
|
||||
sorted.push(sortable[s][1]);
|
||||
}
|
||||
return OAuth.formEncode(sorted);
|
||||
}
|
||||
});
|
||||
|
||||
OAuth.SignatureMethod.registerMethodClass(["PLAINTEXT", "PLAINTEXT-Accessor"],
|
||||
OAuth.SignatureMethod.makeSubclass(
|
||||
function getSignature(baseString) {
|
||||
return this.key;
|
||||
}
|
||||
));
|
||||
|
||||
OAuth.SignatureMethod.registerMethodClass(["HMAC-SHA1", "HMAC-SHA1-Accessor"],
|
||||
OAuth.SignatureMethod.makeSubclass(
|
||||
function getSignature(baseString) {
|
||||
b64pad = '=';
|
||||
var signature = b64_hmac_sha1(this.key, baseString);
|
||||
return signature;
|
||||
}
|
||||
));
|
||||
|
||||
OAuth.correctTimestampFromSrc();
|
||||
202
lib/sha1.js
Normal file
202
lib/sha1.js
Normal file
@ -0,0 +1,202 @@
|
||||
/*
|
||||
* A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
|
||||
* in FIPS PUB 180-1
|
||||
* Version 2.1a Copyright Paul Johnston 2000 - 2002.
|
||||
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
|
||||
* Distributed under the BSD License
|
||||
* See http://pajhome.org.uk/crypt/md5 for details.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Configurable variables. You may need to tweak these to be compatible with
|
||||
* the server-side, but the defaults work in most cases.
|
||||
*/
|
||||
var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
|
||||
var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */
|
||||
var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */
|
||||
|
||||
/*
|
||||
* 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_sha1(s){return binb2hex(core_sha1(str2binb(s),s.length * chrsz));}
|
||||
function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length * chrsz));}
|
||||
function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length * chrsz));}
|
||||
function hex_hmac_sha1(key, data){ return binb2hex(core_hmac_sha1(key, data));}
|
||||
function b64_hmac_sha1(key, data){ return binb2b64(core_hmac_sha1(key, data));}
|
||||
function str_hmac_sha1(key, data){ return binb2str(core_hmac_sha1(key, data));}
|
||||
|
||||
/*
|
||||
* Perform a simple self-test to see if the VM is working
|
||||
*/
|
||||
function sha1_vm_test()
|
||||
{
|
||||
return hex_sha1("abc") == "a9993e364706816aba3e25717850c26c9cd0d89d";
|
||||
}
|
||||
|
||||
/*
|
||||
* Calculate the SHA-1 of an array of big-endian words, and a bit length
|
||||
*/
|
||||
function core_sha1(x, len)
|
||||
{
|
||||
/* append padding */
|
||||
x[len >> 5] |= 0x80 << (24 - len % 32);
|
||||
x[((len + 64 >> 9) << 4) + 15] = len;
|
||||
|
||||
var w = Array(80);
|
||||
var a = 1732584193;
|
||||
var b = -271733879;
|
||||
var c = -1732584194;
|
||||
var d = 271733878;
|
||||
var e = -1009589776;
|
||||
|
||||
for(var i = 0; i < x.length; i += 16)
|
||||
{
|
||||
var olda = a;
|
||||
var oldb = b;
|
||||
var oldc = c;
|
||||
var oldd = d;
|
||||
var olde = e;
|
||||
|
||||
for(var j = 0; j < 80; j++)
|
||||
{
|
||||
if(j < 16) w[j] = x[i + j];
|
||||
else w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
|
||||
var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
|
||||
safe_add(safe_add(e, w[j]), sha1_kt(j)));
|
||||
e = d;
|
||||
d = c;
|
||||
c = rol(b, 30);
|
||||
b = a;
|
||||
a = t;
|
||||
}
|
||||
|
||||
a = safe_add(a, olda);
|
||||
b = safe_add(b, oldb);
|
||||
c = safe_add(c, oldc);
|
||||
d = safe_add(d, oldd);
|
||||
e = safe_add(e, olde);
|
||||
}
|
||||
return Array(a, b, c, d, e);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Perform the appropriate triplet combination function for the current
|
||||
* iteration
|
||||
*/
|
||||
function sha1_ft(t, b, c, d)
|
||||
{
|
||||
if(t < 20) return (b & c) | ((~b) & d);
|
||||
if(t < 40) return b ^ c ^ d;
|
||||
if(t < 60) return (b & c) | (b & d) | (c & d);
|
||||
return b ^ c ^ d;
|
||||
}
|
||||
|
||||
/*
|
||||
* Determine the appropriate additive constant for the current iteration
|
||||
*/
|
||||
function sha1_kt(t)
|
||||
{
|
||||
return (t < 20) ? 1518500249 : (t < 40) ? 1859775393 :
|
||||
(t < 60) ? -1894007588 : -899497514;
|
||||
}
|
||||
|
||||
/*
|
||||
* Calculate the HMAC-SHA1 of a key and some data
|
||||
*/
|
||||
function core_hmac_sha1(key, data)
|
||||
{
|
||||
var bkey = str2binb(key);
|
||||
if(bkey.length > 16) bkey = core_sha1(bkey, key.length * chrsz);
|
||||
|
||||
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 = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * chrsz);
|
||||
return core_sha1(opad.concat(hash), 512 + 160);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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 rol(num, cnt)
|
||||
{
|
||||
return (num << cnt) | (num >>> (32 - cnt));
|
||||
}
|
||||
|
||||
/*
|
||||
* Convert an 8-bit or 16-bit string to an array of big-endian words
|
||||
* In 8-bit function, characters >255 have their hi-byte silently ignored.
|
||||
*/
|
||||
function str2binb(str)
|
||||
{
|
||||
var bin = Array();
|
||||
var mask = (1 << chrsz) - 1;
|
||||
for(var i = 0; i < str.length * chrsz; i += chrsz)
|
||||
bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (32 - chrsz - i%32);
|
||||
return bin;
|
||||
}
|
||||
|
||||
/*
|
||||
* Convert an array of big-endian words to a string
|
||||
*/
|
||||
function binb2str(bin)
|
||||
{
|
||||
var str = "";
|
||||
var mask = (1 << chrsz) - 1;
|
||||
for(var i = 0; i < bin.length * 32; i += chrsz)
|
||||
str += String.fromCharCode((bin[i>>5] >>> (32 - chrsz - i%32)) & mask);
|
||||
return str;
|
||||
}
|
||||
|
||||
/*
|
||||
* Convert an array of big-endian words to a hex string.
|
||||
*/
|
||||
function binb2hex(binarray)
|
||||
{
|
||||
var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
|
||||
var str = "";
|
||||
for(var i = 0; i < binarray.length * 4; i++)
|
||||
{
|
||||
str += hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xF) +
|
||||
hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8 )) & 0xF);
|
||||
}
|
||||
return str;
|
||||
}
|
||||
|
||||
/*
|
||||
* Convert an array of big-endian words to a base-64 string
|
||||
*/
|
||||
function binb2b64(binarray)
|
||||
{
|
||||
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
||||
var str = "";
|
||||
for(var i = 0; i < binarray.length * 4; i += 3)
|
||||
{
|
||||
var triplet = (((binarray[i >> 2] >> 8 * (3 - i %4)) & 0xFF) << 16)
|
||||
| (((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xFF) << 8 )
|
||||
| ((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xFF);
|
||||
for(var j = 0; j < 4; j++)
|
||||
{
|
||||
if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
|
||||
else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
|
||||
}
|
||||
}
|
||||
return str;
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user