/**
* Issue access token in exchange to an Authorization Grant.
*
* @param tokenReqDTO <Code>OAuth2AccessTokenReqDTO</Code> representing the Access Token request
* @return <Code>OAuth2AccessTokenRespDTO</Code> representing the Access Token response
*/
public OAuth2AccessTokenRespDTO issueAccessToken(OAuth2AccessTokenReqDTO tokenReqDTO) {
if (log.isDebugEnabled()) {
log.debug(
"Access Token request received for Client ID "
+ tokenReqDTO.getClientId()
+ ", User ID "
+ tokenReqDTO.getResourceOwnerUsername()
+ ", Scope : "
+ Arrays.toString(tokenReqDTO.getScope())
+ " and Grant Type : "
+ tokenReqDTO.getGrantType());
}
try {
AccessTokenIssuer tokenIssuer = AccessTokenIssuer.getInstance();
return tokenIssuer.issue(tokenReqDTO);
} catch (InvalidOAuthClientException e) {
if (log.isDebugEnabled()) {
log.debug(
"Error occurred while issuing access token for Client ID : "
+ tokenReqDTO.getClientId()
+ ", User ID: "
+ tokenReqDTO.getResourceOwnerUsername()
+ ", Scope : "
+ Arrays.toString(tokenReqDTO.getScope())
+ " and Grant Type : "
+ tokenReqDTO.getGrantType(),
e);
}
OAuth2AccessTokenRespDTO tokenRespDTO = new OAuth2AccessTokenRespDTO();
tokenRespDTO.setError(true);
tokenRespDTO.setErrorCode(OAuth2ErrorCodes.INVALID_CLIENT);
tokenRespDTO.setErrorMsg("Invalid Client");
return tokenRespDTO;
} catch (Exception e) { // in case of an error, consider it as a system error
log.error(
"Error occurred while issuing the access token for Client ID : "
+ tokenReqDTO.getClientId()
+ ", User ID "
+ tokenReqDTO.getResourceOwnerUsername()
+ ", Scope : "
+ Arrays.toString(tokenReqDTO.getScope())
+ " and Grant Type : "
+ tokenReqDTO.getGrantType(),
e);
OAuth2AccessTokenRespDTO tokenRespDTO = new OAuth2AccessTokenRespDTO();
tokenRespDTO.setError(true);
if (e.getCause().getCause() instanceof SQLIntegrityConstraintViolationException) {
tokenRespDTO.setErrorCode("sql_error");
} else {
tokenRespDTO.setErrorCode(OAuth2ErrorCodes.SERVER_ERROR);
}
tokenRespDTO.setErrorMsg("Server Error");
return tokenRespDTO;
}
}
private OAuth2AccessTokenRespDTO handleError(
String errorCode, String errorMsg, OAuth2AccessTokenReqDTO tokenReqDTO) {
if (log.isDebugEnabled()) {
log.debug(
"OAuth-Error-Code="
+ errorCode
+ " client-id="
+ tokenReqDTO.getClientId()
+ " grant-type="
+ tokenReqDTO.getGrantType()
+ " scope="
+ OAuth2Util.buildScopeString(tokenReqDTO.getScope()));
}
OAuth2AccessTokenRespDTO tokenRespDTO;
tokenRespDTO = new OAuth2AccessTokenRespDTO();
tokenRespDTO.setError(true);
tokenRespDTO.setErrorCode(errorCode);
tokenRespDTO.setErrorMsg(errorMsg);
return tokenRespDTO;
}