2

我正在开发（目前正在尝试）将与 LinkedIn 集成的 portlet。

按照有关它的文档：http: //developer.linkedin.com/docs/DOC-1008 --> 授权 LinkedIn 成员的第一步是请求 requestToken。此请求通过 HTTP POST 完成。对于 requestToken 步骤，要签名的字符串中应包含以下组件：

* HTTP Method (POST)
* Request URI (https://api.linkedin.com/uas/oauth/requestToken)
* oauth_callback
* oauth_consumer_key
* oauth_nonce
* oauth_signature_method
* oauth_timestamp
* oauth_version

我已经有 API（它是oauth_consumer_key）密钥，我需要生成特定的 URL 字符串。有这个 URL 和 HTTP 连接的下一个 java 代码：

private void processAuthentication() {

    Calendar cal = Calendar.getInstance();
    Long ms = cal.getTimeInMillis();
    Long timestamp = ms / 1000;

    Random r = new Random();
    Long nonce = r.nextLong();

    String prefixUrl = "https://api.linkedin.com/uas/oauth/requestToken";
    String oauthCallback = "oauth_callback=http://localhost/";
    String oauthConsumerKey =
            "&oauth_consumer_key=my_consumer_key";
    String oauthNonce = "&oauth_nonce=" + nonce.toString();
    String oauthSignatureMethod = "&oauth_signature_method=HMAC-SHA1";
    String oauthTimestamp = "&oauth_timestamp=" + timestamp.toString();
    String oauthVersion = "&oauth_version=1.0";

    String mainUrl =
            oauthCallback + oauthConsumerKey + oauthNonce + oauthSignatureMethod
                    + oauthTimestamp + oauthVersion;

    try {
        prefixUrl =
                URLEncoder.encode(prefixUrl, "UTF-8") + "&"
                        + URLEncoder.encode(mainUrl, "UTF-8");

        URL url = new URL(prefixUrl);

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        String msg = connection.getResponseMessage();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

对于那些遇到过这个问题的人来说，接下来的问题是： 应该如何真正查看连接的 URL 字符串以及如何接收响应？

对于 URL，它对您生成的 URL 示例感兴趣。对于感兴趣的响应，获取它的方法。据我了解，在建立 HTTP 连接后，该响应是：

connection.getResponseMessage();
4

4 回答 4

3

@sergionni 我从linkedin-developer 找到了你的问题的答案

如您所知，授权 Linked-In 成员的第一步是请求 requestToken。此请求通过 HTTP POST 完成。

如果您使用回调，您的基本字符串最终应该看起来像这样：

POST&https%3A%2F%2Fapi.linkedin.com%2Fuas%2Foauth%2FrequestToken &oauth_callback%3Dhttp%253A%252F%252Flocalhost%252Foauth_callback%26o auth_consumer_key%3DABCDEFGHIJKLMNOPQRSTUVWXYZ%26 oauth_nonce%3DoqwgSYFUD87MHmJJDv7bQqOF2EPnVus7Wkqj5duNByU%26 oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1259178158% 26 oauth_version%3D1.0

然后，您使用您的 consumer_secret 对该基本字符串进行签名，计算签名。在这种情况下，如果您的密钥是 1234567890，则签名将为 TLQXuUzM7omwDbtXimn6bLDvfF8=。

现在您将生成的签名与 oauth_nonce、oauth_callback、oauth_signature_method、oauth_timestamp、oauth_consumer_key 和 oauth_version 一起使用，并创建一个 HTTP 授权标头。对于此请求，该 HTTP 标头将如下所示：

Authorization: OAuth oauth_nonce="oqwgSYFUD87MHmJJDv7bQqOF2EPnVus7Wkqj5duNByU", oauth_callback="http%3A%2F%2Flocalhost%2Foauth_callback", oauth_signature_method="HMAC-SHA1", oauth_timestamp="1259178158", oauth_consumer_key="ABCDEFGHIJKLMNOPQRSTUVWXYZ", oauth_signature="TLQXuUzM7omwDbtXimn6bLDvfF8=", oauth_version="1.0"

请注意，HTTP 标头是单个标头——而不是每个组件的 HTTP 标头。您可以选择提供一个领域="http://api.linkedin.com"。

作为对 requestToken 请求的响应，您的 requestToken 将位于“oauth_token”响应字段中，这是我们使用“oauth_callback_confirmed”字段、oauth_token_secret 和 oauth_expires_in 以及其他一些值确认您的回调的验证。

（这里是我们您的答案）响应如下所示：

oauth_token=94ab03c4-ae2c-45e4-8732-0e6c4899db63 &oauth_token_secret=be6ccb24-bf0a-4ea8-a4b1-0a70508e452b &oauth_callback_confirmed=true&oauth_expires_in=599

于 2010-07-22T19:18:19.320 回答
2

您可以尝试使用 OAuth 库来处理连接：http ://code.google.com/p/oauth/

于 2009-12-15T13:37:39.550 回答
0

我为 Play Framework 创建了一个插件，以便与 LinkedIn 的 OAuth 轻松集成：geeks.aretotally.in/projects/play-framework-linkedin-module。希望它可以提供帮助。你应该去看看 Play，非常非常酷的 Java 框架。

于 2011-03-08T04:27:15.957 回答
0

portlet 正文：

public class LinkedInPortlet extends GenericPortlet {

    public static final String PAGE_PIN = "pin";

    public static final String PAGE_EDIT = "edit";

    public static final String PAGE_PROFILE = "profile";

    public static final String PAGE_CONNECTIONS = "connections";

    public static final String FORM_LINKEDIN_PREFERENCES = "preferencesLinkedInForm";

    public static final String PAGE_VIEW_MY_PROFILE = "/WEB-INF/portlets/linkedin/myProfile.jsp";

    public static final String PAGE_VIEW_MY_CONNECTIONS =
            "/WEB-INF/portlets/linkedin/myConnections.jsp";

    public static final String PAGE_PREFERENCES = "/WEB-INF/portlets/linkedin/edit.jsp";

    public void doView(RenderRequest request, RenderResponse response) throws PortletException,
        IOException {

        String view = PAGE_VIEW_MY_PROFILE;

        String page =
                (String) request.getPortletSession().getAttribute(
                        "page_" + getPortletIdentifier(request), PortletSession.PORTLET_SCOPE);

        String accessTokenToken =
                getStringConfiguration(request, LinkedInPreferencesForm.PARAM_ACCESS_TOKEN_TOKEN);
        String accessTokenSecret =
                getStringConfiguration(request, LinkedInPreferencesForm.PARAM_ACCESS_TOKEN_SECRET);

        LinkedInContact profile = new LinkedInContact();
        List<LinkedInContact> contacts = new ArrayList<LinkedInContact>();

        if (PAGE_PIN.equals(page)) {
            view = PAGE_PREFERENCES;
        } else if (PAGE_EDIT.equals(page)) {
            view = PAGE_PREFERENCES;
        } else if (PAGE_CONNECTIONS.equals(page)) {
            try {
                contacts =
                        ServiceResolver.getResolver().getLinkedInService().getConnections(
                                accessTokenToken, accessTokenSecret);
            } catch (ServiceException se) {
                view = PAGE_PREFERENCES;
                handleException(request, se);
            }
            view = PAGE_VIEW_MY_CONNECTIONS;
        } else {
            try {
                profile =
                        ServiceResolver.getResolver().getLinkedInService().getProfile(
                                accessTokenToken, accessTokenSecret);
            } catch (ServiceException se) {
                view = PAGE_PREFERENCES;
                handleException(request, se);
            }

            view = PAGE_VIEW_MY_PROFILE;
        }

        request.setAttribute("profile", profile);
        request.setAttribute("contacts", contacts);

        response.setContentType(request.getResponseContentType());
        PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher(view);
        rd.include(request, response);

    }

    public void processAction(ActionRequest request, ActionResponse response)
        throws PortletException, IOException {

        String action;

        action = (String) request.getParameter("action");

        String page = request.getParameter("page");

        if (page == null) {
            page = PAGE_PROFILE;
        } else if ("auth".equals(action)) {
            request.getPortletSession().setAttribute(
                    "requestToken_" + getPortletIdentifier(request),
                    ServiceResolver.getResolver().getLinkedInService().getRequestToken(),
                    PortletSession.APPLICATION_SCOPE);
            LinkedInPreferencesForm form = new LinkedInPreferencesForm(request);
            request.getPortletSession().setAttribute(
                    FORM_LINKEDIN_PREFERENCES + getPortletIdentifier(request), form,
                    PortletSession.APPLICATION_SCOPE);
            response.setPortletMode(PortletMode.EDIT);
        } else if ("save".equals(action)) {
            try {
                try {
                    savePreferences(request, response);
                } catch (ServiceException e) {
                    handleException(request, e);
                }
            } catch (PortletModeException e) {
                handleException(request, e);
            }
        } else if ("myProfile".equals(action)) {
            page = PAGE_PROFILE;
        } else if ("myConnections".equals(action)) {
            page = PAGE_CONNECTIONS;
        }

        if (page != null) {
            request.getPortletSession().setAttribute("page_" + getPortletIdentifier(request), page,
                    PortletSession.PORTLET_SCOPE);
        }
    }

    private void savePreferences(ActionRequest request, ActionResponse response)
        throws PortletModeException, ServiceException {

        LinkedInPreferencesForm form = new LinkedInPreferencesForm(request);

        if (validateForm(request, form)) {

            LinkedInRequestToken requestToken =
                    (LinkedInRequestToken) request.getPortletSession().getAttribute(
                            "requestToken_" + getPortletIdentifier(request),
                            PortletSession.APPLICATION_SCOPE);

            String pin = request.getParameter("pinCode");

            LinkedInAccessToken accessToken;

            try {
                accessToken =
                        ServiceResolver.getResolver().getLinkedInService().getAccessToken(
                                requestToken, pin);
            } catch (LinkedInOAuthServiceException ase) {
                response.setPortletMode(PortletMode.EDIT);
                throw new ServiceException("linkedin.authentication.failed");

            }

            String tokenToken = requestToken.getToken();
            String secret = requestToken.getTokenSecret();
            String tokenURL = requestToken.getAuthorizationUrl();

            Properties configuration = new Properties();
            configuration.setProperty(LinkedInPreferencesForm.PARAM_PIN, form.getPin());
            configuration
                    .setProperty(LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_TOKEN, tokenToken);
            configuration.setProperty(LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_SECRET, secret);
            configuration.setProperty(LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_URL, tokenURL);
            configuration.setProperty(LinkedInPreferencesForm.PARAM_ACCESS_TOKEN_TOKEN, accessToken
                    .getToken());

            configuration.setProperty(LinkedInPreferencesForm.PARAM_ACCESS_TOKEN_SECRET,
                    accessToken.getTokenSecret());
            ServiceResolver.getResolver().getPortalService().savePortletConfiguration(request,
                    configuration);

            resetSessionForm(request, FORM_LINKEDIN_PREFERENCES);
            response.setPortletMode(PortletMode.VIEW);

        } else {
            // store in session
            request.getPortletSession().setAttribute(
                    FORM_LINKEDIN_PREFERENCES + getPortletIdentifier(request), form,
                    PortletSession.APPLICATION_SCOPE);
            response.setPortletMode(PortletMode.EDIT);
            logger.debug(FORM_LINKEDIN_PREFERENCES + " is in edit mode");
        }
    }

    @Override
    protected void addConfiguration(MessageSource messageSource, Locale locale,
        Map<String, String> result) {
        result.put(LinkedInPreferencesForm.PARAM_PIN, messageSource.getMessage(
                "linkedIn.preferences.pin", null, locale));
        result.put(LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_TOKEN, messageSource.getMessage(
                "linkedIn.preferences.requestTokenToken", null, locale));
        result.put(LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_SECRET, messageSource.getMessage(
                "linkedIn.preferences.requestTokenSecret", null, locale));
        result.put(LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_URL, messageSource.getMessage(
                "linkedIn.preferences.requestTokenURL", null, locale));
        result.put(LinkedInPreferencesForm.PARAM_ACCESS_TOKEN_TOKEN, messageSource.getMessage(
                "linkedIn.preferences.accessToken", null, locale));
        result.put(LinkedInPreferencesForm.PARAM_ACCESS_TOKEN_SECRET, messageSource.getMessage(
                "linkedIn.preferences.accessTokenSecret", null, locale));
    }

    @Override
    protected void addPreference(MessageSource messageSource, Locale locale,
        Map<String, String> result) {
    }

    @Override
    public String getAsyncTitle(RenderRequest request) {
        return this.getTitle(request);
    }

    protected boolean validateForm(ActionRequest request, LinkedInPreferencesForm form) {
        return form.validate();
    }

    protected String myEdit(RenderRequest request, RenderResponse response)
        throws PortletException, IOException {

        LinkedInPreferencesForm form = new LinkedInPreferencesForm();

        form.setPin(getStringConfiguration(request, LinkedInPreferencesForm.PARAM_PIN));
        form.setRequestTokenToken(getStringConfiguration(request,
                LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_TOKEN));
        form.setRequestTokenSecret(getStringConfiguration(request,
                LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_SECRET));
        form.setRequestTokenURL(getStringConfiguration(request,
                LinkedInPreferencesForm.PARAM_REQUEST_TOKEN_URL));

        registerSessionForm(request, FORM_LINKEDIN_PREFERENCES, form);

        LinkedInRequestToken requestToken;

        requestToken =
                (LinkedInRequestToken) request.getPortletSession().getAttribute(
                        "requestToken_" + getPortletIdentifier(request),
                        PortletSession.APPLICATION_SCOPE);

        if (requestToken == null) {
            requestToken =
                    new LinkedInRequestToken(form.getRequestTokenToken(), form
                            .getRequestTokenSecret());
            requestToken.setAuthorizationUrl(form.getRequestTokenURL());
        }

        request.setAttribute("requestToken", requestToken);

        return PAGE_PREFERENCES;

    }
}
于 2012-02-09T14:12:55.167 回答