Package org.dspace.eperson

Class AltchaCaptchaServiceImpl

java.lang.Object

org.dspace.eperson.AltchaCaptchaServiceImpl

All Implemented Interfaces:

CaptchaService

public class AltchaCaptchaServiceImpl
extends Object
implements CaptchaService

Basic services implementation for a Proof of Work Captcha like Altcha. Unlike Google ReCaptcha, there is no remote API or service to rely on, we simply compare the client-side crypto puzzle challenge to our own work and pass or fail the validation that way See https://altcha.org/docs/server-integration for implementation pseudocode.

Author:

Kim Shepherd

See Also:

• for REST impl

Field Summary

Fields inherited from interface org.dspace.eperson.service.CaptchaService

REGISTER_ACTION

Constructor Summary

Constructors

Constructor	Description
AltchaCaptchaServiceImpl()

Method Summary

Modifier and Type	Method	Description
void	init()
void	processResponse(String captchaPayloadHeader, String action)	Process a response string and validate as per interface

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AltchaCaptchaServiceImpl

public AltchaCaptchaServiceImpl()

Method Details

init

@PostConstruct
public void init()

processResponse

public void processResponse(String captchaPayloadHeader,
 String action)
                     throws InvalidReCaptchaException

Process a response string and validate as per interface

Specified by:

processResponse in interface CaptchaService

Parameters:

captchaPayloadHeader - reCaptcha token to be validated

action - action of reCaptcha

Throws:

InvalidReCaptchaException