Add javascript OAuth support

[rails.git] / vendor / assets / ohauth / ohauth.js

diff --git a/vendor/assets/ohauth/ohauth.js b/vendor/assets/ohauth/ohauth.js
new file mode 100644 (file)
index 0000000..0497da8
--- /dev/null
+++ b/vendor/assets/ohauth/ohauth.js
@@ -0,0 +1,86 @@
+(function(context) {
+
+var ohauth = {};
+
+ohauth.qsString = function(obj) {
+    return Object.keys(obj).sort().map(function(key) {
+        return encodeURIComponent(key) + '=' +
+            encodeURIComponent(obj[key]);
+    }).join('&');
+};
+
+ohauth.sha = sha1();
+
+ohauth.stringQs = function(str) {
+    return str.split('&').reduce(function(obj, pair){
+        var parts = pair.split('=');
+        obj[parts[0]] = (null === parts[1]) ?
+            '' : decodeURIComponent(parts[1]);
+        return obj;
+    }, {});
+};
+
+ohauth.rawxhr = function(method, url, data, headers, callback) {
+    var xhr = new XMLHttpRequest(), twoHundred = /^20\d$/;
+    xhr.onreadystatechange = function() {
+        if (4 == xhr.readyState && 0 !== xhr.status) {
+            if (twoHundred.test(xhr.status)) callback(null, xhr);
+            else return callback(xhr, null);
+        }
+    };
+    xhr.onerror = function(e) { return callback(e, null); };
+    xhr.open(method, url, true);
+    for (var h in headers) xhr.setRequestHeader(h, headers[h]);
+    xhr.send(data);
+};
+
+ohauth.xhr = function(method, url, auth, data, options, callback) {
+    var headers = (options && options.header) || {
+        'Content-Type': 'application/x-www-form-urlencoded'
+    };
+    headers.Authorization = 'OAuth ' + ohauth.authHeader(auth);
+    ohauth.rawxhr(method, url, auth, data, headers, callback);
+};
+
+ohauth.nonce = function() {
+    for (var o = ''; o.length < 6;) {
+        o += '0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz'[Math.floor(Math.random() * 61)];
+    }
+    return o;
+};
+
+ohauth.authHeader = function(obj) {
+    return Object.keys(obj).sort().map(function(key) {
+        return encodeURIComponent(key) + '="' + encodeURIComponent(obj[key]) + '"';
+    }).join(', ');
+};
+
+ohauth.timestamp = function() { return ~~((+new Date()) / 1000); };
+
+ohauth.percentEncode = function(s) {
+    return encodeURIComponent(s)
+        .replace(/\!/g, '%21').replace(/\'/g, '%27')
+        .replace(/\*/g, '%2A').replace(/\(/g, '%28').replace(/\)/g, '%29');
+};
+
+ohauth.baseString = function(method, url, params) {
+    if (params.oauth_signature) delete params.oauth_signature;
+    return [
+        method,
+        ohauth.percentEncode(url),
+        ohauth.percentEncode(ohauth.qsString(params))].join('&');
+};
+
+ohauth.signature = function(oauth_secret, token_secret, baseString) {
+    return ohauth.sha.b64_hmac_sha1(
+        ohauth.percentEncode(oauth_secret) + '&' +
+        ohauth.percentEncode(token_secret),
+        baseString);
+};
+
+context.ohauth = ohauth;
+
+// export for npm/browserify compatibility
+if (typeof module !== 'undefined') module.exports = ohauth;
+
+})(this);