Class CrlClientOnline

java.lang.Object
com.itextpdf.text.pdf.security.CrlClientOnline
All Implemented Interfaces:
CrlClient

public class CrlClientOnline extends Object implements CrlClient
An implementation of the CrlClient that fetches the CRL bytes from an URL.
  • Field Details

    • LOGGER

      private static final Logger LOGGER
      The Logger instance.
    • urls

      protected List<URL> urls
      The URLs of the CRLs.
  • Constructor Details

    • CrlClientOnline

      public CrlClientOnline()
      Creates a CrlClientOnline instance that will try to find a single CRL by walking through the certificate chain.
    • CrlClientOnline

      public CrlClientOnline(String... crls)
      Creates a CrlClientOnline instance using one or more URLs.
    • CrlClientOnline

      public CrlClientOnline(URL... crls)
      Creates a CrlClientOnline instance using one or more URLs.
    • CrlClientOnline

      public CrlClientOnline(Certificate[] chain)
      Creates a CrlClientOnline instance using a certificate chain.
  • Method Details

    • addUrl

      protected void addUrl(String url)
      Adds an URL to the list of CRL URLs
      Parameters:
      url - an URL in the form of a String
    • addUrl

      protected void addUrl(URL url)
      Adds an URL to the list of CRL URLs
      Parameters:
      url - an URL object
    • getEncoded

      public Collection<byte[]> getEncoded(X509Certificate checkCert, String url)
      Fetches the CRL bytes from an URL. If no url is passed as parameter, the url will be obtained from the certificate. If you want to load a CRL from a local file, subclass this method and pass an URL with the path to the local file to this method. An other option is to use the CrlClientOffline class.
      Specified by:
      getEncoded in interface CrlClient
      Parameters:
      checkCert - the certificate from which a CRL URL can be obtained
      url - a CRL url if you don't want to obtain it from the certificate
      Returns:
      a collection of byte array each representing a crl. It may return null or an empty collection
      See Also: