jquery.oauth2.js

;(function($) {

	// Extend jQuery to add random string generator
	$.extend({ 
		randomKey: function (length, special) {
		  var iteration = 0;
		  var randomKey = "";
		  var randomNumber;
		  if(special == undefined){
		      var special = false;
		  }
		  while(iteration < length){
		      randomNumber = (Math.floor((Math.random() * 100)) % 94) + 33;
		      if(!special){
		          if ((randomNumber >=33) && (randomNumber <=47)) { continue; }
		          if ((randomNumber >=58) && (randomNumber <=64)) { continue; }
		          if ((randomNumber >=91) && (randomNumber <=96)) { continue; }
		          if ((randomNumber >=123) && (randomNumber <=126)) { continue; }
		      }
		      iteration++;
		      randomKey += String.fromCharCode(randomNumber);
		  }
		  return randomKey;
		}
	});

	// Extend jQuery to add JSON HTTP request
	$.extend({ 
		fetchPostData: function (usuario, password) {

			// Get the values from html input's
			var username = usuario;
			var password = password;
			var random_key = $.randomKey(36);

			// Encode the data to send
			var user_encode = $.base64.encode(username +':'+ random_key);
			var pass_encode = $.base64.encode($.randomKey(36)) +':'+ $.base64.encode(password+':'+random_key);

			// Prepare the return object
			$.postData = {};
			$.postData.oauth_client_id = user_encode;
			$.postData.oauth_client_secret = $.base64.encode(pass_encode);
			$.postData.oauth_response_type = 'temporary';
			$.postData.oauth_signature_method = 'PLAINTEXT';

			return $.postData;
		}
	});

	// Declare Ajax Object
	$.extend({ 
		doLogin: function (usuario, password, returnData) {
			console.log("DOLOGIN START");
			
			// Fetch the post data
			var postData = $.fetchPostData(usuario, password);

			// Define the beforeSend function
			var beforeSendData = function(xhr) {
							var base64 = $.base64.encode(usuario);
							xhr.setRequestHeader('Authorization', 'Bearer ' + base64);
			};

			//
			// Request the temporary token
			//
			
			$.ajax({ url: urlWellMets + "/api/joomla:articles",
				data: postData,
				dataType: 'jsonp',
				timeout : 10000,
				crossDomain: true,
				beforeSend : beforeSendData,
				error: function (xhr, textStatus, errorThrown) {
					console.log("DOLOGIN ERROR: " + errorThrown + "(" + textStatus + ")");
					returnData(null);
		        },
		        success:function(data, textStatus, xhqr){
		        	console.log("DOLOGIN SUCCESS");
		        	// Decode the JSON response
					postData.oauth_code = data.oauth_code;
					postData.oauth_response_type = 'authorise';
		        },
		        complete: function(response, textStatus) {
					console.log("DOLOGIN COMPLETE (" + textStatus + ")");

					if (textStatus == "success")
					{
						//
						// Request the authorization token
						//
						$.ajax({ url: urlWellMets + "/api/joomla:articles", 
							data: postData,
							dataType: 'jsonp',
							timeout : 10000,
							crossDomain: true,
							beforeSend : beforeSendData,
							error: function (xhr, textStatus, errorThrown) {
								console.log("DOLOGIN 2 ERROR: " + errorThrown + "(" + textStatus + ")");
								returnData(null);
					        },
					        success:function(data, textStatus, xhqr){
					        	console.log("DOLOGIN 2 SUCCESS");
					        	// Decode the JSON response
					        	// Add new values to new ajax request
								postData.oauth_code = data.oauth_code;
								postData.oauth_response_type = 'token';
					        },
							complete: function(response, textStatus) {
								console.log("DOLOGIN 2 COMPLETE (" + textStatus + ")");
								
								if (textStatus == "success")
								{
									//
									// Request the access_token
									//
									$.ajax({ url: urlWellMets + "/api/joomla:articles", 
										data: postData,
										dataType: 'jsonp',
										timeout : 10000,
										crossDomain: true,
										beforeSend : beforeSendData, 
										error: function (xhr, textStatus, errorThrown) {
											console.log("DOLOGIN 3 ERROR: " + errorThrown + "(" + textStatus + ")");
											returnData(null);
								        },
								        success:function(data, textStatus, xhqr){
								        	console.log("DOLOGIN 3 SUCCESS");
								        	// Decode the JSON response
								        	console.log("DOLOGIN 3 RESULT" + data);
								        	returnData(data);
								        },
										complete: function(response, textStatus) {
											console.log("DOLOGIN 3 COMPLETE (" + textStatus + ")");
										}
									}); // end ajax
								}
							}

						}); // end ajax
					}
				}

			}); // end ajax
		}
	});
}(jQuery));