How to handle string data characters that are illegal in XML?










5















Consider this web service implemented in Java:



@WebMethod(operationName = "test1")
@WebResult(name = "test1", targetNamespace = "http://test.example.org/")
public String test1()

return "foou0000bar"; // "foo" + NUL + "bar"



Using (versions 2.5.10 and 2.7.18 of) apache CXF, this will return (SOAP envelope omitted):



<ns2:test1>foo[NULL byte here]bar</ns2:test1>


Which is invalid XML.



Do other web service libraries handle the NULL (and other characters that are invalid in XML) differently? What is the correct standard handling?










share|improve this question




























    5















    Consider this web service implemented in Java:



    @WebMethod(operationName = "test1")
    @WebResult(name = "test1", targetNamespace = "http://test.example.org/")
    public String test1()

    return "foou0000bar"; // "foo" + NUL + "bar"



    Using (versions 2.5.10 and 2.7.18 of) apache CXF, this will return (SOAP envelope omitted):



    <ns2:test1>foo[NULL byte here]bar</ns2:test1>


    Which is invalid XML.



    Do other web service libraries handle the NULL (and other characters that are invalid in XML) differently? What is the correct standard handling?










    share|improve this question


























      5












      5








      5








      Consider this web service implemented in Java:



      @WebMethod(operationName = "test1")
      @WebResult(name = "test1", targetNamespace = "http://test.example.org/")
      public String test1()

      return "foou0000bar"; // "foo" + NUL + "bar"



      Using (versions 2.5.10 and 2.7.18 of) apache CXF, this will return (SOAP envelope omitted):



      <ns2:test1>foo[NULL byte here]bar</ns2:test1>


      Which is invalid XML.



      Do other web service libraries handle the NULL (and other characters that are invalid in XML) differently? What is the correct standard handling?










      share|improve this question
















      Consider this web service implemented in Java:



      @WebMethod(operationName = "test1")
      @WebResult(name = "test1", targetNamespace = "http://test.example.org/")
      public String test1()

      return "foou0000bar"; // "foo" + NUL + "bar"



      Using (versions 2.5.10 and 2.7.18 of) apache CXF, this will return (SOAP envelope omitted):



      <ns2:test1>foo[NULL byte here]bar</ns2:test1>


      Which is invalid XML.



      Do other web service libraries handle the NULL (and other characters that are invalid in XML) differently? What is the correct standard handling?







      xml web-services cxf






      share|improve this question















      share|improve this question













      share|improve this question




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      edited Nov 13 '18 at 19:06







      David Balažic

















      asked Nov 13 '18 at 12:13









      David BalažicDavid Balažic

      636637




      636637






















          2 Answers
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          1














          The ideal is to have some XML mechanism for whatever the control character is meant to do.



          If that isn't possible, or if you need to send non-characters for some reason (almost always a sign of a very bad idea, but you might have to deal with someone else's bad idea) then it's best sent as base-64 encoded or some other way of wrapping non-textual data in text.






          share|improve this answer






























            0














            Standard ways for handling XML content that would be invalid in XML is to use CDATA section(s) or base64-encoded values (preferably with base64Binary data type).






            share|improve this answer






















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              2 Answers
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              2 Answers
              2






              active

              oldest

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              active

              oldest

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              active

              oldest

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              1














              The ideal is to have some XML mechanism for whatever the control character is meant to do.



              If that isn't possible, or if you need to send non-characters for some reason (almost always a sign of a very bad idea, but you might have to deal with someone else's bad idea) then it's best sent as base-64 encoded or some other way of wrapping non-textual data in text.






              share|improve this answer



























                1














                The ideal is to have some XML mechanism for whatever the control character is meant to do.



                If that isn't possible, or if you need to send non-characters for some reason (almost always a sign of a very bad idea, but you might have to deal with someone else's bad idea) then it's best sent as base-64 encoded or some other way of wrapping non-textual data in text.






                share|improve this answer

























                  1












                  1








                  1







                  The ideal is to have some XML mechanism for whatever the control character is meant to do.



                  If that isn't possible, or if you need to send non-characters for some reason (almost always a sign of a very bad idea, but you might have to deal with someone else's bad idea) then it's best sent as base-64 encoded or some other way of wrapping non-textual data in text.






                  share|improve this answer













                  The ideal is to have some XML mechanism for whatever the control character is meant to do.



                  If that isn't possible, or if you need to send non-characters for some reason (almost always a sign of a very bad idea, but you might have to deal with someone else's bad idea) then it's best sent as base-64 encoded or some other way of wrapping non-textual data in text.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 13 '18 at 14:38









                  Jon HannaJon Hanna

                  90.4k9110202




                  90.4k9110202























                      0














                      Standard ways for handling XML content that would be invalid in XML is to use CDATA section(s) or base64-encoded values (preferably with base64Binary data type).






                      share|improve this answer



























                        0














                        Standard ways for handling XML content that would be invalid in XML is to use CDATA section(s) or base64-encoded values (preferably with base64Binary data type).






                        share|improve this answer

























                          0












                          0








                          0







                          Standard ways for handling XML content that would be invalid in XML is to use CDATA section(s) or base64-encoded values (preferably with base64Binary data type).






                          share|improve this answer













                          Standard ways for handling XML content that would be invalid in XML is to use CDATA section(s) or base64-encoded values (preferably with base64Binary data type).







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Nov 22 '18 at 3:29









                          apisimapisim

                          4826




                          4826



























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