Win8App OAuth 網頁認證

DAY 23

Windows Metro style Apps using HTML5系列第 26 篇

javascript windows 鐵人賽

seanamph

2012-10-16 22:13:42

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Windows.Security.Authentication.Web
這是個很有趣的namespace，他提供了 OpenAuth 和 OpenID 的整合，還有SSO。
http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.authentication.web

OAuth
Google、Yahoo的OAuth我用C#接過了，這部分還不太陌生，不知道這是什麼，想問好不好吃的人請先看wiki。
http://zh.wikipedia.org/zh-tw/OAuth

直接看範例
http://code.msdn.microsoft.com/windowsapps/Web-Authentication-d0485122
這裡面有四個js分別連到Facebook、Flickr、google和tweeter，

oAuthFacebook.js

var facebookURL = "https://www.facebook.com/dialog/oauth?client_id="
+ clientID + "&redirect_uri=" + encodeURIComponent(callbackURL) + 
"&scope=read_stream&display=popup&response_type=token";

        Windows.Security.Authentication.Web.WebAuthenticationBroker.authenticateAsync(
            Windows.Security.Authentication.Web.WebAuthenticationOptions.none, startURI, endURI)
            .done(function (result) {
                document.getElementById("FacebookReturnedToken").value = result.responseData;
                document.getElementById("FacebookDebugArea").value += "Status returned by WebAuth broker: " + result.responseStatus + "\r\n";
                if (result.responseStatus === Windows.Security.Authentication.Web.WebAuthenticationStatus.errorHttp) {
                    document.getElementById("FacebookDebugArea").value += "Error returned: " + result.responseErrorDetail + "\r\n";
                }
                authzInProgress = false;
            }, function (err) {
                WinJS.log("Error returned by WebAuth broker: " + err, "Web Authentication SDK Sample", "error");
                document.getElementById("FacebookDebugArea").value += " Error Message: " + err.message + "\r\n";
                authzInProgress = false;
            });

滿好玩的。

oAuthFlickr.js

        var flickrURL = "https://secure.flickr.com/services/oauth/request_token";

        // Acquiring a request token
        var timestamp = Math.round(new Date().getTime() / 1000.0);
        var nonce = Math.random();
        nonce = Math.floor(nonce * 1000000000);

        // Compute base signature string and sign it.
        // This is a common operation that is required for all requests even after the token is obtained.
        // Parameters need to be sorted in alphabetical order
        // Keys and values should be URL Encoded.
        var sigBaseStringParams = "oauth_callback=" + encodeURIComponent(callbackURL);
        sigBaseStringParams += "&" + "oauth_consumer_key=" + clientID;
        sigBaseStringParams += "&" + "oauth_nonce=" + nonce;
        sigBaseStringParams += "&" + "oauth_signature_method=HMAC-SHA1";
        sigBaseStringParams += "&" + "oauth_timestamp=" + timestamp;
        sigBaseStringParams += "&" + "oauth_version=1.0";

        var sigBaseString = "GET&";
        sigBaseString += encodeURIComponent(flickrURL) + "&" + encodeURIComponent(sigBaseStringParams);

        var keyText = clientSecret + "&";
        var keyMaterial = Windows.Security.Cryptography.CryptographicBuffer.convertStringToBinary(keyText, Windows.Security.Cryptography.BinaryStringEncoding.Utf8);
        var macAlgorithmProvider = Windows.Security.Cryptography.Core.MacAlgorithmProvider.openAlgorithm("HMAC_SHA1");
        var key = macAlgorithmProvider.createKey(keyMaterial);
        var tbs = Windows.Security.Cryptography.CryptographicBuffer.convertStringToBinary(sigBaseString, Windows.Security.Cryptography.BinaryStringEncoding.Utf8);
        var signatureBuffer = Windows.Security.Cryptography.Core.CryptographicEngine.sign(key, tbs);
        var signature = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(signatureBuffer);

        flickrURL += "?" + sigBaseStringParams + "&oauth_signature=" + encodeURIComponent(signature);

copy上癮了，google 也copy一下。

oAuthGoogle.js

 var googleURL = "https://accounts.google.com/o/oauth2/auth?client_id=" + clientID + "&redirect_uri=" +
  callbackURL + "&response_type=code&scope=http://picasaweb.google.com/data";

        document.getElementById("GoogleDebugArea").value += "Navigating to: " + googleURL + "\r\n";
        var startURI = new Windows.Foundation.Uri(googleURL);
        var endURI = new Windows.Foundation.Uri("https://accounts.google.com/o/oauth2/approval?");

個人認為google 的Auth最簡單

執行一下範例