62 lines
2.3 KiB
Java
62 lines
2.3 KiB
Java
package eu.dnetlib.uoaadmintoolslibrary.recaptcha;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Configurable;
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import org.springframework.boot.web.client.RestTemplateBuilder;
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import org.springframework.context.annotation.Bean;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import org.springframework.web.client.RestOperations;
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import java.net.URI;
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import java.util.regex.Pattern;
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import eu.dnetlib.uoaadmintoolslibrary.configuration.properties.GoogleConfig;
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import eu.dnetlib.uoaadmintoolslibrary.entities.email.GoogleResponse;
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import eu.dnetlib.uoaadmintoolslibrary.handlers.InvalidReCaptchaException;
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@Service
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@Configurable
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public class VerifyRecaptcha {
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private final Logger log = LogManager.getLogger(this.getClass());
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@Autowired
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private RestOperations restTemplate;
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@Autowired
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private GoogleConfig googleConfig;
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private static Pattern RESPONSE_PATTERN = Pattern.compile("[A-Za-z0-9_-]+");
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@Bean
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public RestOperations restTemplate(RestTemplateBuilder builder) {
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return builder.build();
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}
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public void processResponse(String response) throws InvalidReCaptchaException {
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if(!responseSanityCheck(response)) {
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InvalidReCaptchaException e = new InvalidReCaptchaException("Response contains invalid characters");
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log.error("Response contains invalid characters", e);
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throw e;
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}
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URI verifyUri = URI.create(String.format(
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"https://www.google.com/recaptcha/api/siteverify?secret=%s&response=%s",
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googleConfig.getSecret(), response));
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GoogleResponse googleResponse = restTemplate.getForObject(verifyUri, GoogleResponse.class);
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if(!googleResponse.isSuccess()) {
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log.error("Has client error:"+googleResponse.hasClientError());
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InvalidReCaptchaException e = new InvalidReCaptchaException("reCaptcha was not successfully validated");
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log.error("reCaptcha was not successfully validated", e);
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throw e;
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}
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}
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private boolean responseSanityCheck(String response) {
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return StringUtils.hasLength(response) && RESPONSE_PATTERN.matcher(response).matches();
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}
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}
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