How to Overwrite function before it run?

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  • Mohammed R
    New Member
    • Oct 2010
    • 2
    #1

    How to Overwrite function before it run?

    Hi everybody :)
    I'm facing an issue while trying to display a page ( SAP BEx Report) on an IFrame.
    There is a javascript function inside the the page make it keep refection.
    I’m trying to overwrite this function before it run.
    The src for the IFrame page :
    Code:
    <html><head><LINK REL=stylesheet HREF="/irj/portalapps/com.sap.portal.design.portaldesigndata/themes/portal/ARAMCO/prtl_std/prtl_std_ie6.css?7.1.5.0.1">

<!-- EPCF: BOB Core -->
<meta http-equiv="Content-Script-Type" content="text/javascript">
<script src="/irj/portalapps/com.sap.portal.epcf.loader/script/optimize/js13_epcf.js?7.01000020"></script>
<script>
<!--
EPCM.relaxDocumentDomain();
EPCM.init( {
Version:7.01000020,
Level:1,
PortalVersion:"7.0105.20090812092945.0000",
DynamicTop:false, // [service=true nestedWinOnAlias=false]
UAType:1, // [MSIE]
UAVersion:8.0,
UAPlatform:1, // [Win]
UIPMode:"1", // [Default=1, User=0, Personalize=true]
UIPWinFeatures:"",
UIPPortalPath:"http://dvb.aramco.com.sa:52000/irj/portal",
UIPPopupComp:"/irj/servlet/prt/portal/prtroot/com.sap.portal.epcf.admin.WorkProtectPopup",
UIPPopupCompSize:"dialogWidth:450px; dialogHeight:200px; status:no",
UIPPopupMsgNN:"",
UIPPopupMsgND:"",
DBGException:false
} );
EPCM.DSM.init( {
TerminatorURL:"/irj/servlet/prt/portal/prtroot/com.sap.portal.dsm.Terminator",
WinEmptyUrl:"/irj/portalapps/com.sap.portal.dsm/images/empty.gif",
ForcedUserDebug:false,
KeepAliveActive:false,
KeepAliveDelta:840,
KeepAliveStopAfter:36000
} );
function SAPWP_receiveSessInfo( sessInfo, frameRef ){
  EPCM.DSM.processSession( sessInfo, frameRef );
}
//-->
</script>
<!-- EPCF: EOB Core -->

<script type="text/javascript">
/*HTML Business for Java, 701_SP_TEST, 528954, Sat Jul 11 21:55:20 AST 2009*/
ur_system = {doc : window.document , mimepath :"/irj/portalapps/com.sap.portal.design.urdesigndata/themes/portal/ARAMCO/common/", stylepath : "/irj/portalapps/com.sap.portal.design.urdesigndata/themes/portal/ARAMCO/ur/", emptyhoverurl : "/irj/portalapps/com.sap.portal.htmlb/jslib/emptyhover.html", is508 : false, dateformat : 1, domainrelaxing : "MINIMAL"};
</script>
<title >SAP NetWeaver Portal</title><meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"></head><body class="prtlBody urFontBaseFam urScrl">
<!-- EPCF: Component com.sap.portal.appintegrator.sap.BWReport, codjkaekngoeniemidleobclomgncaib -->

<script>
<!--
  function hasNestedFrameStructure() {
    try {
      return (parent != window) && (parent.EPCM != null);
    } catch(e) {
      return false; // access denied!
    }
  }
//-->
</script>

<!-- Session Mangement Check -->

<!-- HTTPRenderLayer_Redirect::Begin -->
<form id="form_Redirect_9223372036563636042" 
  name="form_Redirect_9223372036563636042"
    method="POST"
    target="_self"
    action="/irj/servlet/prt/portal/prtroot/com.sap.ip.bi.web.portal.integration.launcher"
    style="DISPLAY:none">
      <input type="hidden" name="sap-bw-iViewID" value="pcd:portal_content/com.sap.pct/platform_add_ons/com.sap.ip.bi/iViews/com.sap.ip.bi.bex">
      <input type="hidden" name="sap-ext-sid" value="H6enlztSkkUZX7G*QhdSKA--Jt2cQdvkBs_*9RVvQeGETA--">
      <input type="hidden" name="Language" value="EN">
      <input type="hidden" name="QUERY" value="ZPS_PMIS_R_006_01">
      <input type="hidden" name="DUMMY" value="5">
      <input type="hidden" name="VARIABLE_SCREEN" value="X">
  </form>
<div><iframe 
    id="iframe_Redirect_9223372036563636042" name="iframe_Redirect_9223372036563636042"
    title="BEx Web"
    src="/irj/servlet/prt/portal/prtroot/com.sap.portal.appintegrator.Loading?1887930939"
 	width="100%" height="100%"
    marginheight="0" border="0" frameborder="no">
  </iframe></div>
  <script> 
    function requestTargetURL() {
	  var theForm = document.getElementById("form_Redirect_9223372036563636042");
	  var dsmObj;
      if (hasNestedFrameStructure()) {
	    dsmObj = parent.EPCM.DSM;
      } else {
        document.body.scroll = "no"; // for IE only
	    theForm.target = "iframe_Redirect_9223372036563636042";
	    document.getElementById("iframe_Redirect_9223372036563636042").style.visibility = "visible";
	    dsmObj = EPCM.DSM;
        document.title = 'BEx Web';    
      }
          dsmObj.registerFullKey("GUSID:H6enlztSkkUZX7G*QhdSKA--Jt2cQdvkBs_*9RVvQeGETA--", "1288161886180");
      theForm.submit();
    }

    function onloadhandler(){
      setTimeout("requestTargetURL()",1);
    }
</script>
  
  <form id="form_ClientWindowID_9223372036563636042" name="form_ClientWindowID_9223372036563636042"
    method="POST"
    target="_self"
    style="DISPLAY:none">
	<!-- Request Parameters -->
  <input type="hidden" name="VARIABLE_SCREEN" value="X">
  <input type="hidden" name="ClientWindowID" value="null">
  <input type="hidden" name="DUMMY" value="5">
  <input type="hidden" name="QUERY" value="ZPS_PMIS_R_006_01">

    <input type="hidden" name="$Roundtrip" value="true">
    <input type="hidden" name="$DebugAction" value="null">        
  </form>
  <script>
    <!--
    function submitClientWindowIDForm(formTarget, formAction) {
      
      // set ClientWindowID Form-Field
      var theForm = setClientWindowIDForForm("form_ClientWindowID_9223372036563636042");
      
	  // set Target
	  if (formTarget != "_self") {
	    theForm.target = formTarget;
	  }
	  
	  if (formAction != null && formAction.length > 0) {
	  	theForm.action = formAction;
	  }
	  
	  // submit
      theForm.submit();
    }
    
    function setClientWindowIDForForm(formID) {
      var windowID = EPCM.getUniqueWindowId();
      var theForm = document.getElementById(formID);

      // add unique window ID to the form
      if (theForm.ClientWindowID != null) {
        theForm.ClientWindowID.value = windowID;
      }

      return theForm;
    }
    //-->		 	      
  </script>


  <script>
    <!-- 
   	  var trueWindowID = EPCM.getUniqueWindowId();
   	  if (trueWindowID != "null") {
   	    submitClientWindowIDForm("_self");
   	  } else {
   	    EPCM.subscribeEvent("urn:com.sapportals.portal:browser","load",onloadhandler);
   	  }
    //-->
  </script>
<!-- HTTPRenderLayer_Redirect::End --></body></html>]

    The javascript function which causing the issue

    Code:
    function hasNestedFrameStructure() {
    try {
      return (parent != window) && (parent.EPCM != null);
    } catch(e) {
      return false; // access denied!
    }
  }
    I have try onload event, It doesn't work.
    The script inside the IFrame will run before onload event.
    Tags: None
    • acoder
      Recognized Expert MVP
      • Nov 2006
      • 16032
      #2
      Can you change the source of the iframe?

        Comment

        • Mohammed R
          New Member
          • Oct 2010
          • 2
          #3
          Yes you can change source of the iframe.

          I have found that this is not the issue for me.
          The issue in the following code:

          in the iframe page at line 155 there is call for
          -- EPCM.getUniqueW indowId()
          function which call
          -- getSAPTop().
          and the 'getSAPTop' function always return top. However, top shows access denied error.

          Code:
          EPCM.getUniqueWindowId=function(){
var wid=null;
try{
wid=this.getSAPTop().name;
var rewrite=true;
if( wid != null && typeof(wid) == "string" ){
if (wid.indexOf("WID") == 0) rewrite=false;
if (wid.indexOf("DefaultExternal") == 0) rewrite=false;}
if(rewrite){
this.getSAPTop().name="WID"+(new Date()).getTime();}
return this.getSAPTop().name;
}catch (ex){
return null;}
}
EPCM.getSAPTop=function(){
return (this._private.isDynamicTop) ? this._private.refDynamicTop : top;}

            Comment

            • acoder
              Recognized Expert MVP
              • Nov 2006
              • 16032
              #4
              OK, so the problem's elsewhere. Where is _private defined? Perhaps you could just replace the function with top?

                Comment

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