add debugging logs in configurable login provider

dmp-backend/web/src/main/java/eu/eudat/logic/security/customproviders/ConfigurableProvider/ConfigurableProviderCustomProviderImpl.java

@@ -2,6 +2,8 @@ package eu.eudat.logic.security.customproviders.ConfigurableProvider;
 
 import eu.eudat.logic.security.customproviders.ConfigurableProvider.entities.oauth2.Oauth2ConfigurableProviderUserSettings;
 import eu.eudat.logic.security.validators.configurableProvider.helpers.ConfigurableProviderResponseToken;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
@@ -11,10 +13,12 @@ import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
 import org.springframework.web.client.RestTemplate;
 
+import java.util.HashMap;
 import java.util.Map;
 
 @Component("configurableProviderCustomProvider")
 public class ConfigurableProviderCustomProviderImpl implements ConfigurableProviderCustomProvider {
+	private static final Logger logger = LoggerFactory.getLogger(ConfigurableProviderCustomProviderImpl.class);
 
 	@Override
 	public ConfigurableProviderResponseToken getAccessToken(String code, String redirectUri, String clientId, String clientSecret, String accessTokenUrl,
@@ -32,7 +36,22 @@ public class ConfigurableProviderCustomProviderImpl implements ConfigurableProvi
 		map.add("client_secret", clientSecret);
 		HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(map, headers);
 
+		logger.debug("----------------------------------------------");
+		logger.debug("Sending request to access token url: " + accessTokenUrl);
+		logger.debug("The request sent is: ");
+		map.forEach((key, value) -> logger.debug(key + ": " + value));
+		logger.debug("----------------------------------------------");
+
 		Map<String, Object> values = template.postForObject(accessTokenUrl, request, Map.class);
+		try {
+			logger.debug("----------------------------------------------");
+			logger.debug("Returned values from access token url request:");
+			values.forEach((key, value) -> logger.debug(key + ": " + value));
+			logger.debug("----------------------------------------------");
+		} catch (NullPointerException e){
+			logger.error(e.getMessage(), e);
+			values = new HashMap<>();
+		}
 		ConfigurableProviderResponseToken responseToken = new ConfigurableProviderResponseToken();
 		responseToken.setAccessToken((String) values.get(access_token));
 		if (expires_in != null && !expires_in.isEmpty()) {
@@ -48,7 +67,26 @@ public class ConfigurableProviderCustomProviderImpl implements ConfigurableProvi
 		HttpHeaders headers = this.createBearerAuthHeaders(accessToken);
 		HttpEntity<String> entity = new HttpEntity<>(headers);
 
+		logger.debug("----------------------------------------------");
+		logger.debug("Sending request to user info url: " + user.getUser_info_url());
+		logger.debug("Using access token: " + accessToken);
+		logger.debug("----------------------------------------------");
+
 		Map<String, Object> values = restTemplate.exchange(user.getUser_info_url(), HttpMethod.GET, entity, Map.class).getBody();
+		try {
+			logger.debug("----------------------------------------------");
+			logger.debug("Returned values from user info url request:");
+			values.forEach((key, value) -> logger.debug(key + ": " + value));
+			logger.debug("-------------------------------------------");
+		} catch (NullPointerException e){
+			logger.error(e.getMessage(), e);
+			values = new HashMap<>();
+		}
+
+		logger.debug("----------------------------------------------");
+		logger.debug("Searching in user info response for these fields: " + user.getId() + ", " + user.getName() + ", " + user.getEmail());
+		logger.debug("----------------------------------------------");
+
 		return new ConfigurableProviderUser().getConfigurableProviderUser(values, user);
 	}