LinkedIn login for applicant portal.

cmsWebApp/src/performa/form/LinkedInOAuthLoginFP.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package performa.form;
+
+import javax.servlet.http.HttpServletRequest;
+import oneit.appservices.config.ConfigMgr;
+import oneit.security.oauth.form.BaseOAuthLoginFP;
+import oneit.servlets.forms.*;
+import oneit.utils.CollectionUtils;
+
+/**
+ *
+ * @author Pradip Sabhadiya
+ */
+public class LinkedInOAuthLoginFP extends BaseOAuthLoginFP
+{
+    public static final     String          LINKEDIN_CLIENTID_ATTR_NAME         = "linkedin.clientId";
+    public static final     String          LINKEDIN_CLIENTSECRET_ATTR_NAME     = "linkedin.clientSecret";
+    
+    public static  final   String           LINKEDIN_APP_OAUTH_URL              = "https://www.linkedin.com/oauth/v2/authorization";
+    public static  final   String           LINKEDIN_ACCESS_TOKEN_URL           = "https://www.linkedin.com/oauth/v2/accessToken";
+    public static  final   String           LINKEDIN_PROFILE_FROM_TOKEN_URL     = "https://api.linkedin.com/v1/people/~";
+    
+    @Override
+    public String getOAuthLoginURL(SubmissionDetails submission, String token)
+    {
+        String appId = ConfigMgr.getKeyfileString(LINKEDIN_CLIENTID_ATTR_NAME);
+        
+        String callbackURL = getCallbackURL(submission.getRequest());
+        
+        return LINKEDIN_APP_OAUTH_URL
+                + HTTPRequestDetails.getParamStringURL(CollectionUtils.mapEntry("client_id", appId)
+                                                                    .mapEntry("redirect_uri", callbackURL)
+                                                                    .mapEntry("scope", "r_basicprofile")
+                                                                    .mapEntry("response_type", "code")
+                                                                    .mapEntry("state", token).toMap());
+    }
+    
+    public static String getCallbackURL(HttpServletRequest  request)
+    {
+        String  urlFirstBit = request.getScheme () + "://" + request.getServerName () + ":" + request.getServerPort ();
+
+        return HTTPRequestDetails.getFullURL(urlFirstBit + request.getContextPath() + "/linkedinCallback", new String[0]);
+    }
+    
+}

cmsWebApp/src/performa/form/LinkedInOAuthLoginHandler.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package performa.form;
+
+import java.io.*;
+import java.net.*;
+import javax.servlet.http.HttpServletRequest;
+import oneit.appservices.config.ConfigMgr;
+import oneit.components.ParticipantInitialisationContext;
+import oneit.logging.*;
+import oneit.security.oauth.decorator.OAuthCallbackDecorator;
+import oneit.security.oauth.utils.BaseOAuthLoginHandler;
+import oneit.servlets.forms.HTTPRequestDetails;
+import oneit.utils.*;
+import org.json.*;
+
+/**
+ *
+ * @author Pradip Sabhadiya
+ */
+public class LinkedInOAuthLoginHandler extends BaseOAuthLoginHandler
+{
+    protected static final LoggingArea     LOG = LoggingArea.createLoggingArea("BaseOAuthLoginHandler");
+
+    @Override
+    public void validateRequest(HttpServletRequest request)
+    {
+        LogMgr.log(LOG, LogLevel.DEBUG3, "Validation LinkedIn callback request");
+
+        String state = request.getParameter("state");
+        String token = (String) request.getSession().getAttribute(OAuthCallbackDecorator.TOKEN_ATTRIB_NAME);
+        
+        Debug.assertion(CollectionUtils.equals(state, token), "Unothorized access to callback url.");
+    }
+
+    @Override
+    public OAuthLoginInfo getProfileInfo(HttpServletRequest request) throws Exception
+    {
+        LogMgr.log(LOG, LogLevel.DEBUG3, "Getting profile data from callback");
+        String accessToken = getAccessToken(request);
+        
+        try
+        {
+            String profileURL = LinkedInOAuthLoginFP.LINKEDIN_PROFILE_FROM_TOKEN_URL
+                                + HTTPRequestDetails.getParamStringURL(CollectionUtils.mapEntry("oauth2_access_token", accessToken).mapEntry("format", "json").toMap());
+            
+            JSONObject      json        = executeURL(profileURL);
+            
+            LogMgr.log(LOG, LogLevel.PROCESSING1, "Profile Data found ", json);
+            
+            OAuthLoginInfo  loginInfo   = new OAuthLoginInfo();
+            
+            loginInfo.setId(json.getString("id"));
+            loginInfo.setFirstName(json.getString("firstName"));
+            
+            if (json.has("email"))
+            {
+                loginInfo.setEmail(json.getString("email"));
+            }
+            if (json.has("lastName"))
+            {
+                loginInfo.setLastName(json.getString("lastName"));
+            }
+            
+            return loginInfo;
+        }
+        catch (Exception e)
+        {
+            LogMgr.log(LOG, LogLevel.SYSTEMERROR1, "Exception occured in getProfileInfo");
+            throw new NestedException(e, "ERROR while getting user data.");
+        }
+    }
+    
+    public String getAccessToken(HttpServletRequest request) throws Exception
+    {
+        String code = request.getParameter("code");
+        String appId = ConfigMgr.getKeyfileString(LinkedInOAuthLoginFP.LINKEDIN_CLIENTID_ATTR_NAME);
+        String appSecret = ConfigMgr.getKeyfileString(LinkedInOAuthLoginFP.LINKEDIN_CLIENTSECRET_ATTR_NAME);
+        String callbackURL = LinkedInOAuthLoginFP.getCallbackURL(request);
+        
+        
+        @SuppressWarnings("unchecked")
+        String accessTokenURL = LinkedInOAuthLoginFP.LINKEDIN_ACCESS_TOKEN_URL
+                + HTTPRequestDetails.getParamStringURL(CollectionUtils.mapEntry("grant_type", "authorization_code")
+                                                                    .mapEntry("code", code)
+                                                                    .mapEntry("redirect_uri", callbackURL)
+                                                                    .mapEntry("client_id", appId)
+                                                                    .mapEntry("client_secret", appSecret).toMap());
+        
+        
+        JSONObject data = executeURL(accessTokenURL, "POST");
+
+        if(!data.has("access_token"))
+        {
+            throw new RuntimeException("ERROR: Access Token Invalid: " + data);
+        }
+        
+        return data.getString("access_token");
+    }
+
+    public void init(ParticipantInitialisationContext context) throws InitialisationException
+    {
+        context.setObject(this);
+    }
+    
+    public static JSONObject executeURL(String urlString)
+    {
+        return executeURL(urlString, null);
+    }
+    
+    public static JSONObject executeURL(String urlString, String method)
+    {
+        LogMgr.log(LoggingArea.ALL, LogLevel.DEBUG3, "Executing url ", urlString);
+        
+        try
+        {
+            URL             url             = new URL(urlString);
+            URLConnection   urlConnection   = url.openConnection();
+            
+            if(StringUtils.subBlanks(method) != null && method.toUpperCase().equals("POST"))
+            {
+                urlConnection.setDoOutput(true);
+            }
+             
+            BufferedReader in = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
+            
+            return new JSONObject(IOUtils.readerToString(in));
+        }
+        catch (IOException e)
+        {
+            LogMgr.log(LoggingArea.ALL, LogLevel.SYSTEMERROR1, "Error in Executing url ", urlString, e);
+            throw new NestedException(e);
+        }
+        catch(JSONException je)
+        {
+            LogMgr.log(LoggingArea.ALL, LogLevel.SYSTEMERROR1, "Error in Parsing Json Data", urlString, je);
+            throw new NestedException(je);
+        }
+    }
+}

cmsWebApp/webroot/extensions/adminportal/CustomServlets_adminPortal.xml

@@ -124,10 +124,10 @@
                     <NODE   name="helper"               factory="Named"         nodename="SetupUserHelper"/>
                     <NODE   name="serviceName"          factory="String"        value="GOOGLE"/>
                 </Handler>
-<!--                <Handler    name="/linkedinCallback"    factory="Participant"   class="performa.form.LinkedInOAuthLoginHandler">
+                <Handler    name="/linkedinCallback"    factory="Participant"   class="performa.form.LinkedInOAuthLoginHandler">
                     <NODE   name="helper"               factory="Named"         nodename="SetupUserHelper"/>
                     <NODE   name="serviceName"          factory="String"        value="LINKEDIN"/>
-                </Handler>-->
+                </Handler>
        
         </DECORATOR>
     </NODE>

cmsWebApp/webroot/extensions/applicantportal/CustomServlets_applicantPortal.xml

@@ -15,7 +15,7 @@
         </FORM>
         <FORM   name="*.facebookOAuthLogin"     factory="Participant"   class="oneit.security.oauth.form.FacebookOAuthLoginFP"/>
         <FORM   name="*.googleOAuthLogin"       factory="Participant"   class="oneit.security.oauth.form.GoogleOAuthLoginFP"/>
-        <!--<FORM   name="*.linkedinOAuthLogin"             factory="Participant"   class="performa.form.LinkedInOAuthLoginFP"/>-->
+        <FORM   name="*.linkedinOAuthLogin"     factory="Participant"   class="performa.form.LinkedInOAuthLoginFP"/>
         <FORM   name="*.forgotPassword" factory="Participant"   class="performa.form.ForgotPasswordFP">
             <ResetCodeEmailer   factory="Participant"   class="oneit.email.ConfigurableArticleTemplateEmailer"  templateShortcut="ResetCodeEmail"/>
         </FORM>

cmsWebApp/webroot/extensions/performa/upgrades/20170920_Add_LinkedInProperties.txt

+Add followings to keyfile.properties 
+
+linkedin.clientId=81eohoovrfda10
+linkedin.clientSecret=jXDHcrXYDirPygCf
\ No newline at end of file