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POTwitter OAuth authentication in javascript
 

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    <p>I have looked everywhere for a good example of a JQuery ajax call to authenticate a use in Twitter using their OAuth method. I read the instructions several times and this is what I have so far, at the moment I am only trying to get the Oauth_Token to send the user to validate. I keep getting the error 401 unauthorized error. I have tried a few combinations changing the dataType and couple other things in the ajax call but no success. I believe that the "Create base signature and the Create signature from SHA1 encryption" is correct, but I could be wrong. If anyone has implement twitter OAuth in javascript successfully please let me know how. I am also not interested in using a third party API, I actually want to learn this. Thanks in advance for any help.</p> <p>Twitter instructions <a href="http://dev.twitter.com/pages/auth" rel="noreferrer">http://dev.twitter.com/pages/auth</a></p> <p>My code (Javascript)</p> <pre><code> //Unix time var foo = new Date; // Generic JS date object var unixtime_ms = foo.getTime(); // Returns milliseconds since the epoch var unixtime = parseInt(unixtime_ms / 1000); var callBackURL = "oob"; //oob for now var nonce = "12342897"; //Create Signature Base String using formula var baseSign = "POST" + "&amp;" + encodeURIComponent("https://api.twitter.com/oauth/request_token").toString() + "&amp;" + encodeURIComponent("oauth_callback") + "%3D" + encodeURIComponent(callBackURL) + "%26" + encodeURIComponent("oauth_consumer_key") + "%3D" + encodeURIComponent("*****consumer key**********") + "%26" + encodeURIComponent("oauth_nonce") + "%3D" + encodeURIComponent(nonce) + "%26" + encodeURIComponent("oauth_signature_method") + "%3D" + encodeURIComponent("HMAC-SHA1") + "%26" + encodeURIComponent("oauth_timestamp") + "%3D" + encodeURIComponent(unixtime) + "%26" + encodeURIComponent("oauth_version") + "%3D" + encodeURIComponent("1.0"); //Create Signature, With consumer Secret key we sign the signature base string var signature = b64_hmac_sha1("********secrete key****************", baseSign); //Build headers from signature var jsonData = JSON.stringify({ Authorization: { oauth_nonce: nonce, oauth_callback: encodeURIComponent(callBackURL), oauth_signature_method: "HMAC-SHA1", oauth_timestamp: unixtime, oauth_consumer_key: "**********consumer key*********", oauth_signature: signature, oauth_version: "1.0" } }); //Request Access Token $.ajax({ url: "http://api.twitter.com/oauth/request_token", type: "post", headers: jsonData, dataType: "jsonp", success: function (data) { alert(data); }, error: function (data) { alert("Error"); } </code></pre> <p>Here is the HTTP response</p> <pre><code>HTTP/1.1 401 Unauthorized Date: Thu, 14 Jul 2011 21:05:55 GMT Server: hi Status: 401 Unauthorized X-Transaction: 1310677555-60750-49846 X-Frame-Options: SAMEORIGIN Last-Modified: Thu, 14 Jul 2011 21:05:55 GMT X-Runtime: 0.01152 Content-Type: text/html; charset=utf-8 Pragma: no-cache X-Revision: DEV Expires: Tue, 31 Mar 1981 05:00:00 GMT X-MID: ffc990286a86b688f1e72ef733365926ea30ca62 Vary: Accept-Encoding Cache-Control: no-cache, no-store, must-revalidate, pre-check=0, post-check=0, proxy-revalidate Content-Length: 44 Proxy-Connection: Keep-Alive Connection: Keep-Alive Set-Cookie: lang=en; path=/ Set-Cookie: lang=en; path=/ Set-Cookie: _twitter_sess=BAh7DjoOcmV0dXJuX3RvIiJodHRwOi8vdHdpdHRlci5jb20vcGF1bF9pcmlz%250AaDoJdXNlcmkEl6phBDoVaW5fbmV3X3VzZXJfZmxvdzA6D2NyZWF0ZWRfYXRs%250AKwgE9BTnMAE6B2lkIiU2MzBkYmJmNmY4YmRmY2E3NGI2NDRmZTFhNjZiNmU2%250ANToTc2hvd19oZWxwX2xpbmswOgxjc3JmX2lkIiUyODIzYWNlNmFjMzQ3OTk5%250AZDE5YmVlYmJlYzM4MTg0ZSIKZmxhc2hJQzonQWN0aW9uQ29udHJvbGxlcjo6%250ARmxhc2g6OkZsYXNoSGFzaHsABjoKQHVzZWR7ADoTcGFzc3dvcmRfdG9rZW4i%250ALThkY2NlMmE1OTI5OWJmM2VjNDI4YWRiOTE0YTRmYzVjYzQwN2FkMmM%253D--22a361f562df3aa6991b81fff6f486086ab71f0e; domain=.twitter.com; path=/; HttpOnly Proxy-support: Session-based-authentication Age: 0 Failed to validate oauth signature and token </code></pre>
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