86 lines
2.6 KiB
JavaScript
86 lines
2.6 KiB
JavaScript
(function(context) {
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var ohauth = {};
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ohauth.qsString = function(obj) {
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return Object.keys(obj).sort().map(function(key) {
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return encodeURIComponent(key) + '=' +
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encodeURIComponent(obj[key]);
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}).join('&');
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};
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ohauth.sha = sha1();
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ohauth.stringQs = function(str) {
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return str.split('&').reduce(function(obj, pair){
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var parts = pair.split('=');
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obj[parts[0]] = (null === parts[1]) ?
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'' : decodeURIComponent(parts[1]);
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return obj;
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}, {});
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};
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ohauth.rawxhr = function(method, url, data, headers, callback) {
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var xhr = new XMLHttpRequest(), twoHundred = /^20\d$/;
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xhr.onreadystatechange = function() {
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if (4 == xhr.readyState && 0 !== xhr.status) {
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if (twoHundred.test(xhr.status)) callback(null, xhr);
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else return callback(xhr, null);
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}
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};
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xhr.onerror = function(e) { return callback(e, null); };
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xhr.open(method, url, true);
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for (var h in headers) xhr.setRequestHeader(h, headers[h]);
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xhr.send(data);
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};
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ohauth.xhr = function(method, url, auth, data, options, callback) {
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var headers = (options && options.header) || {
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'Content-Type': 'application/x-www-form-urlencoded'
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};
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headers.Authorization = 'OAuth ' + ohauth.authHeader(auth);
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ohauth.rawxhr(method, url, auth, data, headers, callback);
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};
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ohauth.nonce = function() {
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for (var o = ''; o.length < 6;) {
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o += '0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz'[Math.floor(Math.random() * 61)];
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}
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return o;
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};
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ohauth.authHeader = function(obj) {
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return Object.keys(obj).sort().map(function(key) {
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return encodeURIComponent(key) + '="' + encodeURIComponent(obj[key]) + '"';
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}).join(', ');
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};
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ohauth.timestamp = function() { return ~~((+new Date()) / 1000); };
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ohauth.percentEncode = function(s) {
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return encodeURIComponent(s)
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.replace(/\!/g, '%21').replace(/\'/g, '%27')
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.replace(/\*/g, '%2A').replace(/\(/g, '%28').replace(/\)/g, '%29');
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};
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ohauth.baseString = function(method, url, params) {
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if (params.oauth_signature) delete params.oauth_signature;
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return [
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method,
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ohauth.percentEncode(url),
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ohauth.percentEncode(ohauth.qsString(params))].join('&');
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};
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ohauth.signature = function(oauth_secret, token_secret, baseString) {
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return ohauth.sha.b64_hmac_sha1(
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ohauth.percentEncode(oauth_secret) + '&' +
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ohauth.percentEncode(token_secret),
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baseString);
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};
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context.ohauth = ohauth;
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// export for npm/browserify compatibility
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if (typeof module !== 'undefined') module.exports = ohauth;
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})(this);
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