import com.google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseServiceClient; import com.google.recaptchaenterprise.v1.Assessment; import com.google.recaptchaenterprise.v1.CreateAssessmentRequest; import com.google.recaptchaenterprise.v1.Event; import com.google.recaptchaenterprise.v1.ProjectName; import com.google.recaptchaenterprise.v1.RiskAnalysis.ClassificationReason; import java.io.IOException; public class CreateAssessment { public static void main(String[] args) throws IOException { // TODO: Replace the token and reCAPTCHA action variables before running the sample. String projectID = "christina-stroeh"; String recaptchaKey = "6LdHikMsAAAAAMX0QcTMio2wwpsIEQSLYIil36GP"; String token = "action-token"; String recaptchaAction = "action-name"; createAssessment(projectID, recaptchaKey, token, recaptchaAction); } /** * Create an assessment to analyze the risk of a UI action. * * @param projectID : Your Google Cloud Project ID. * @param recaptchaKey : The reCAPTCHA key associated with the site/app * @param token : The generated token obtained from the client. * @param recaptchaAction : Action name corresponding to the token. */ public static void createAssessment( String projectID, String recaptchaKey, String token, String recaptchaAction) throws IOException { // Create the reCAPTCHA client. // TODO: Cache the client generation code (recommended) or call client.close() before exiting the method. try (RecaptchaEnterpriseServiceClient client = RecaptchaEnterpriseServiceClient.create()) { // Set the properties of the event to be tracked. Event event = Event.newBuilder().setSiteKey(recaptchaKey).setToken(token).build(); // Build the assessment request. CreateAssessmentRequest createAssessmentRequest = CreateAssessmentRequest.newBuilder() .setParent(ProjectName.of(projectID).toString()) .setAssessment(Assessment.newBuilder().setEvent(event).build()) .build(); Assessment response = client.createAssessment(createAssessmentRequest); // Check if the token is valid. if (!response.getTokenProperties().getValid()) { System.out.println( "The CreateAssessment call failed because the token was: " + response.getTokenProperties().getInvalidReason().name()); return; } // Check if the expected action was executed. if (!response.getTokenProperties().getAction().equals(recaptchaAction)) { System.out.println( "The action attribute in reCAPTCHA tag is: " + response.getTokenProperties().getAction()); System.out.println( "The action attribute in the reCAPTCHA tag " + "does not match the action (" + recaptchaAction + ") you are expecting to score"); return; } // Get the risk score and the reason(s). // For more information on interpreting the assessment, see: // https://cloud.google.com/recaptcha-enterprise/docs/interpret-assessment for (ClassificationReason reason : response.getRiskAnalysis().getReasonsList()) { System.out.println(reason); } float recaptchaScore = response.getRiskAnalysis().getScore(); System.out.println("The reCAPTCHA score is: " + recaptchaScore); // Get the assessment name (id). Use this to annotate the assessment. String assessmentName = response.getName(); System.out.println( "Assessment name: " + assessmentName.substring(assessmentName.lastIndexOf("/") + 1)); } } }

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