获取访问令牌时，签名LinkedIn Oauth无效

我正在努力将LinkedIn OAuth添加到我创建的Phonegap应用程序中，该应用程序允许用户自动发布到他们的LinkedIn公共档案中。我似乎在通过Childbrowser插件从LinkedIn REST API检索访问令牌时遇到了问题。为了签署我的REST API调用，我正在使用javascript中的OauthSimple插件。

当我将签名的POST发送到REST API时，我收到一个401未授权错误。它规定我有一个无效的签名，我一辈子都无法弄清楚哪里出了问题。

这是我请求访问令牌时从LinkedIn收到的json响应：

{"readyState":4,
"responseText":"oauth_problem=signature_invalid&
oauth_problem_advice=com.linkedin.security.auth.pub.LoginDeniedInvalidAuthTokenException%20
while%20obtaining%20request%20token%20for%20%3APOST%26
https%253A%252F%252Fapi.linkedin.com%252Fuas%252Foauth%252F
accessToken%26
oauth_consumer_key%253Dkivazo8r4xr3%2526
oauth_nonce%253D6ruTZ%2526
oauth_signature_method%253DHMAC-SHA1%2526
oauth_timestamp%253D1360525594%2526
oauth_token%253D0011aab8-0cf0-4555-ba44-304b34e4b636%2526
oauth_verifier%253D32140%2526
oauth_version%253D1.0,
"status":401,
"statusText":"Unauthorized"}

如果你想看看我的javascript，下面是我的函数：

function parametersFromUrl(url) {
    var result = {};
    //Remove everything up to where the parameters start. could be after # or after ?
    url = url.substr(url.indexOf('?') + 1).substr(url.indexOf('#') + 1)
    //Replace html escape characters
    url = url.replace(/%23/g, '#').replace(/%26/g, '&').replace(/%3D/g, '=');
    var parameters = url.split('&');
    for(var i = 0; i < parameters.length; i++) {
        var parameter = parameters[i].split('=');
        result[parameter[0]] = parameter[1];
    }
    return result;
}
/* -- Linkedin START -- */
var Linkedin = {
    init:function() {
        var signatures = { consumer_key: '555555', shared_secret: '555555' };
        var simple = new OAuthSimple(signatures.consumer_key, signatures.shared_secret);
        Linkedin.getRequestToken(simple, signatures);
    },
    getRequestToken:function(simple, signatures) {
        var result = simple.reset().sign({
            action: 'POST',
            path: 'https://api.linkedin.com/uas/oauth/requestToken',
            signatures: signatures
        });
        console.log(result);
        console.log(result.signed_url);
        jQuery.ajax({
            url: result.signed_url,
            type: 'POST',
            success: function(data) {
                jQuery.extend(signatures, parametersFromUrl(data));
                console.log(signatures['oauth_token']);
                Linkedin.childBrowserAuthenticate(simple, signatures);
            },
            error: function() {
                console.log('error');
            }
        });
    },
    childBrowserAuthenticate:function(simple, signatures) {
        ChildBrowser.install();
        var childBrowser = window.plugins.childBrowser;
        var browserUrl = simple.reset().sign({
            path: signatures['xoauth_request_auth_url']
        }).signed_url;
        browserUrl = browserUrl + '&oauth_token=' + signatures['oauth_token'];
        childBrowser.showWebPage(decodeURIComponent(browserUrl));
        function finish(err) {
            if (err) onFailure(err);
            childBrowser.onClose = null;
            childBrowser.close();
        }
        childBrowser.onLocationChange = function(loc) {
            if (loc.indexOf('oauth_problem') > -1) {
                finish('User authorization error');
            } else if (loc.indexOf('oauth_verifier') > -1) {
                alert('good');
                finish();
                $.each(signatures, function(i,item) {
                    console.log(i);
                    console.log(item);
                });
                console.log("next");
                params = parametersFromUrl(loc);
                jQuery.extend(signatures, params);
                $.each(signatures, function(i,item) {
                    console.log(i);
                    console.log(item);
                });
                Linkedin.getAccessToken(simple, signatures);
            }
        };
        childBrowser.onClose = function() {
            finish('User cancelled authorization.');
        };
    },
    getAccessToken:function(simple, signatures) {
        console.log("last");
        $.each(signatures, function(i,item) {
                    console.log(i);
                    console.log(item);
                });
        var requestUrl = simple.reset().sign({
            action: 'POST',
            path: 'https://api.linkedin.com/uas/oauth/accessToken',
            parameters: {
                'oauth_verifier': signatures.oauth_verifier,
                'oauth_token': signatures.oauth_token,
                'oauth_token_secret': signatures.oauth_token_secret,
                'oauth_version': "1.0"
            }
        }).signed_url;
        console.log(requestUrl);
        jQuery.ajax({
            url: requestUrl,
            type: 'POST',
            success: function(data) {
                jQuery.extend(signatures, parametersFromUrl(data));
                $.each(signatures, function(i,item) {
                    console.log(i);
                    console.log(item);
                });
                Linkedin.getUserProfile();
            },
            error: function(resp) {
                alert('crap');
                console.log(resp);
            }
        });
    },
    getUserProfile:function() {
        var result = simple.reset().sign({
            action: 'GET',
            path: 'https://api.linkedin.com/v1/people/~:(first-name,last-name,headline,picture-url)',
            parameters: {
                format: 'json'
            }
        });
        jQuery.ajax({
            url: result.signed_url,
            success: function(userData) {
                onSuccess(userData);
                alert('success');
                alert(userData);
            },
            error: function(resp) {
                onFailure('Failed to get profile information')
            }
        });
    }
};
/* -- Linkedin END -- */

当我向LinkedIn REST API请求（POST）获取访问令牌时，我的url如下：

https://api.linkedin.com/uas/oauth/accessToken?oauth_consumer_key=555555&oauth_nonce=KXuSN&oauth_signature=rk7eNjTxlhi0UOppOPfA%2BYvQ8uM%3D&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1360527087&oauth_token=206e2377-c790-49a6-839c-a996cadfbdfc&oauth_verifier=62355&oauth_version=1.0

我将我的oauth签名与Linkedin oauth控制台生成的签名进行了比较，发现它们不一样。可能出了什么问题？

我用这个教程来指导我完成这个过程。

如果你需要更多信息，请告诉我，我会补充我的问题。

非常感谢！