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Escape Java EL in validation message before interpolation #117

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Nov 30, 2020
Merged

Escape Java EL in validation message before interpolation #117

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9 changes: 8 additions & 1 deletion scimono-server/src/main/java/com/sap/scimono/entity/schema/validation/ValidationUtil.java
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Original file line number Diff line number Diff line change
@@ -1,13 +1,20 @@

package com.sap.scimono.entity.schema.validation;

import java.util.regex.Pattern;

import javax.validation.ConstraintValidatorContext;

class ValidationUtil {
private static final Pattern EXPRESSION_LANGUAGE_CHARACTERS = Pattern.compile("([${}])");

public static void interpolateErrorMessage(ConstraintValidatorContext context, String errorMessage) {
context.disableDefaultConstraintViolation();
context.buildConstraintViolationWithTemplate(errorMessage).addConstraintViolation();
context.buildConstraintViolationWithTemplate(escapeExpressionLanguage(errorMessage)).addConstraintViolation();
}

private static String escapeExpressionLanguage(String text) {
return EXPRESSION_LANGUAGE_CHARACTERS.matcher(text).replaceAll( "\\\\$1" );
}

}