Solved: Re: How to read response from local html file cont...

Sucheta · ‎2022 Sep 17

I need to read response from my local html file in my sap program. I have seen most of the sample code tries to read URL. If I try those codes it is checking the 'https:' or 'http' in the URL and as I have local file ( file:///C:/Users/COMPANY/Desktop/SIG/Data/test1.html) it is not getting http and showing error. Please help.

Contents of html file is as follows:

<html>

<head>

function testWebSocket()

{

var connection = new WebSocket('wss://999.9.9.1:2212');

connection.onopen = function () {

console.log('Connection Opened');

};

connection.onerror = function (error)

{

alert('Please check the server connection: ' + error);

document.getElementById("signData").value=error;

};

connection.onmessage = function (e)

{

if(e.data.indexOf("subProtocol")==-1)

{

alert(e.data);

setData("signData", "signData");

}

{}

};

var completeData = '';

var splitData = [];

var i = 0;

var splitLength = 0;

var j = 0;

var actualData = '';

var textId = '';

var k = 0;

var bufLength = 16300;

alert("Begin");

function setData(txf1, msg)

{

alert("in set Fuction");

msg="action=signpdf\ndatatosign=' '\nsignaction=3\noutputpath=\nsigntype=sign\nexpirycheck=true\ncoordinate=425,100,545,160\nissuername=\ncerttype=ALL\ncertclass=0\npageno=All\ncoSign=true";

actualData = msg;

textId = txf1;

completeData = msg;

//alert('completeData length ' + completeData.length);

if(completeData.length < bufLength)

{

//alert('not splitting');

splitData[0] = msg;

call(txf1,msg);

}

else

{

//alert('splitting');

splitLength = completeData.length / bufLength;

//alert('splitLength ' + splitLength);

var t = 0;

var tt = k + bufLength + 1;

for(i = 0; i < splitLength; i++)

{

splitData[i] = completeData.substring(t, tt);

k = k + bufLength;

t = k + 1;

tt = t + bufLength;

}

call(txf1,msg);

}

function call(txf1,msg)

{

if(connection==null)

{

alert('Please check the server connection2');

return;

}

var data="";

var startindex="";

if(msg.length < bufLength)

{

completeData = splitData[0] + 'completed';

connection.send(completeData);

}

else

{

if(j == i-1)

{

completeData = splitData[j] + 'completed';

}

else{

completeData = splitData[j];

}

j++;

connection.send(completeData);

}

connection.onerror = function (error)

{

alert('Please check the server connection: ' + error);

document.getElementById("signData").value=error;

};

connection.onmessage = function (e)

{

if(e.data.indexOf("subProtocol")==-1)

{

if(e.data == 'sendmore')

{

call(textId, actualData);

}

else{

data = data + e.data;

startindex=data.indexOf('completed');

if(startindex != -1)

{

// Client can use the signature

alert(data)

//document.getElementById(txf1).value=data;

splitData = [];

i = 0;

splitLength = 0;

j = 0;

actualData = '';

textId = '';

k = 0;

}

};

}

</script>

</head>

<body>

<p>Click the following button to call websocket</p>

<input type = "button" onclick = "testWebSocket()" value = "Sign

">

</body>

</html>

Juwin · ‎2022 Sep 20

Please have a look at how DEMO_HTML_INPUT program from SAP in SE38. It demos how to get data from HTML page into ABAP.

Sandra_Rossi · ‎2022 Sep 18

What error is it showing? What are you doing to obtain this error? What is your code?

thkolz · ‎2022 Sep 19

Is it an html file on your application server or on cient side?

Sucheta · ‎2022 Sep 19

We have created the html file in our presentation server. There is a button in the html file against which there is a java script. We need to capture the the response from the java script after the button is pressed. Please advise.

Sucheta · ‎2022 Nov 08

Thanks a lot. It solved my problem

Juwin · ‎2022 Sep 20

Please have a look at how DEMO_HTML_INPUT program from SAP in SE38. It demos how to get data from HTML page into ABAP.

abo · ‎2022 Sep 21

From what version is that available? On a 7.31 I have DEMO_HTML_BROWSER only.

Juwin · ‎2022 Sep 21

Not sure of the version in which this was provided. I have attached the source code here:

REPORT demo_html_input.
CLASS demo DEFINITION.
  PUBLIC SECTION.
    CLASS-METHODS main.
  PRIVATE SECTION.
    CLASS-METHODS handle_sapevent
      FOR EVENT sapevent
                  OF cl_abap_browser
      IMPORTING action
                  query_table.
ENDCLASS.
CLASS demo IMPLEMENTATION.
  METHOD main.
    DATA error_list TYPE cl_abap_browser=>html_table.
    SET HANDLER handle_sapevent.
    DATA(html_str) =
       `<html>`
    && `  <head>`
    && `    <meta http-equiv="content-type" `
    && `          content="text/html; `
    && `          charset=utf-8">`
    && `    <script language="JavaScript">`
    && `      function sendInput(form) `
    && `          { fname=form.name;       `
    && `            document[fname].submit();} `
    && `      function InputKeyDown(form) {`
    && `        if(event.keyCode == 13) {`
    && `            fname=form.name;`
    && `            document[fname].submit();} }`
    && `    </script>`
    && `  </head>`
    && `  <body>`
    && `    <form name="INPUT" accept-charset="utf-8" `
    && `          method="post" action="SAPEVENT:INPUT"> `
    && `      <input type="text" id="in1" name="field1" `
    && `             size=30 maxlength=30 title="" value="aaa" `
    && `             onKeyDown="InputKeyDown(this.form);"><br>`
    && `      <input type="text" id="in2" name="field2" `
    && `             size=30 maxlength=30 title="" value="bbb" `
    && `             onKeyDown="InputKeyDown(this.form);"><br>`
    && `      <input type="text" id="in3" name="field3" `
    && `             size=30 maxlength=30 title="" value="ccc" `
    && `             onKeyDown="InputKeyDown(this.form);"><br><br>`
    && `     <button id="enterButton" type="button" `
    && `             title="Enter" onClick="sendInput(INPUT);" `
    && `             onKeypress="if(event.keycode=13) `
    && `             sendInput(INPUT);">`
    && `             Enter</button>`
    && `    </form>`
    && `  </body>`
    && `</html>`.
    cl_abap_browser=>show_html(
      EXPORTING
        html_string = html_str
        title       = 'Input Demo'
      IMPORTING
         html_errors = error_list ).
    IF error_list IS NOT INITIAL.
      MESSAGE 'Error in HTML' TYPE 'I' DISPLAY LIKE 'E'.
    ENDIF.
  ENDMETHOD.
  METHOD handle_sapevent.
    DATA(out) = cl_demo_output_stream=>open( ).
    SET HANDLER cl_demo_output_html=>handle_output FOR out.
    out->write_data( iv_name = 'ACTION'      ia_value = action ).
    out->write_data( iv_name = 'QUERY_TABLE' ia_value = query_table ).
    out->close( ).
  ENDMETHOD.
ENDCLASS.
START-OF-SELECTION.
  demo=>main( ).

abo · ‎2022 Sep 21

Thanks, but it cannot be activated because of a missing parameter, I guess this is why it was not supplied in our system.

Sucheta · ‎2022 Sep 24

Thanks juwin.thomas2.

I had tried copying the program demo_html_input. But the parameter html_string is of type string and it was unable to capture the entire html file as the length of my file is quite large approx 5000 characters.

Hence I used the parameter html which is an internal table. But it is not working as expected. Can you please provide a sample program where html table is used and it is capturing the output form the html response.

Juwin · ‎2022 Sep 24

String has the capability to take unlimited length. So, 5000 chars shouldn't be any issue. When you say "not working as expected", what do you mean?

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How to read response from local html file containing java script