Homelab, Linux & ABAP (~˘▾˘)~
 

[PDF.js] Set filename when downloading pdf

When using a blob or base64 data to open a file in PDF.js, the viewer is not able to get the correct filename. So when downloading the pdf using the download button inside the viewer, it will always download as document.pdf. To manually set a filename, you can use the setTitleUsingUrl function.

<iframe id="pdf-js-viewer" src="/pdf/web/viewer.html?file=" title="webviewer" frameborder="0" width="100%" height="700" allowfullscreen="" webkitallowfullscreen=""/>
let pdfViewerIFrame = document.getElementById("pdf-js-viewer")
pdfViewerIFrame.contentWindow.PDFViewerApplication.setTitleUsingUrl("myFilename")

More info here: https://github.com/mozilla/pdf.js/issues/10435

[ABAP] Download Transport as ZIP

REPORT zip_transport.

SELECTION-SCREEN BEGIN OF BLOCK bl01 WITH FRAME TITLE TEXT-t01.
PARAMETERS p_trkorr LIKE e070-trkorr OBLIGATORY.
PARAMETERS p_ttext  TYPE as4text.
SELECTION-SCREEN END OF BLOCK bl01.

SELECTION-SCREEN BEGIN OF BLOCK bl02 WITH FRAME TITLE TEXT-t02.
PARAMETERS p_sapdir TYPE string LOWER CASE OBLIGATORY DEFAULT '/usr/sap/trans/'.
PARAMETERS p_lcldir TYPE string LOWER CASE OBLIGATORY DEFAULT 'C:\temp\'.
SELECTION-SCREEN END OF BLOCK bl02.


START-OF-SELECTION.

  " Check if Transport is released
  DATA ls_request TYPE trwbo_request.
  CALL FUNCTION 'TR_READ_REQUEST'
    EXPORTING
      iv_read_e070     = 'X'
      iv_read_e07t     = 'X'
      iv_trkorr        = p_trkorr
    CHANGING
      cs_request       = ls_request
    EXCEPTIONS
      error_occured    = 1
      no_authorization = 2
      OTHERS           = 3.
  IF ls_request-h-trstatus <> 'R'.
    MESSAGE 'Transport not yet released' TYPE 'E'.
  ENDIF.


  " Read released Transport
  DATA lv_xcontent_k TYPE xstring.
  DATA lv_xcontent_r TYPE xstring.

  DATA(lo_zipper) = NEW cl_abap_zip( ).

  DATA(lv_transdir_k) = |{ p_sapdir }cofiles/K{ p_trkorr+4 }.{ p_trkorr(3) }|.
  DATA(lv_transdir_r) = |{ p_sapdir }data/R{    p_trkorr+4 }.{ p_trkorr(3) }|.


  TRY.

      " K
      OPEN  DATASET lv_transdir_k FOR INPUT IN BINARY MODE.
      READ  DATASET lv_transdir_k INTO lv_xcontent_k.
      CLOSE DATASET lv_transdir_k.

      " R
      OPEN  DATASET lv_transdir_r FOR INPUT IN BINARY MODE.
      READ  DATASET lv_transdir_r INTO lv_xcontent_r.
      CLOSE DATASET lv_transdir_r.


      " Add to ZIP
      lo_zipper->add( name    = |K{ p_trkorr+4 }.{ p_trkorr(3) }|
                      content = lv_xcontent_k ).

      lo_zipper->add( name    = |R{ p_trkorr+4 }.{ p_trkorr(3) }|
                      content = lv_xcontent_r ).


      " Download ZIP
      DATA(lv_xzip) = lo_zipper->save( ).

      DATA lt_data TYPE TABLE OF tbl1024.
      CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
        EXPORTING
          buffer     = lv_xzip
        TABLES
          binary_tab = lt_data.

      " Set zip filename
      DATA(lv_zip_name) = COND #( WHEN p_ttext IS INITIAL THEN |{ p_lcldir }{ ls_request-h-as4text }_{ p_trkorr }.zip|
                                                          ELSE |{ p_lcldir }{ p_ttext              }_{ p_trkorr }.zip| ).

      cl_gui_frontend_services=>gui_download( EXPORTING filename = lv_zip_name
                                                        filetype = 'BIN'
                                              CHANGING  data_tab = lt_data ).

    CATCH cx_root INTO DATA(e_text).
      MESSAGE e_text->get_text( ) TYPE 'E'.
  ENDTRY.

  MESSAGE |{ p_trkorr } zip created and downloaded to { p_lcldir }| TYPE 'S'.

[JavaScript] Download base64 encoded file within a browser

            const sBase64 = "JVBERi0xLjQKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3....."
            const arrayBuffer = new Uint8Array([...window.atob(sBase64)].map(char => char.charCodeAt(0)))
            const fileLink = document.createElement('a')

            fileLink.href = window.URL.createObjectURL(new Blob([arrayBuffer]))
            fileLink.setAttribute('download', "example.pdf")
            document.body.appendChild(fileLink)
            fileLink.click()

Or use the npm package FileSaver.

import { saveAs } from "file-saver";

const sBase64 = "JVBERi0xLjQKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3....."
const buffer = Buffer.from(sBase64, "base64") //Buffer is only available when using nodejs
saveAs(new Blob([buffer]), "example.pdf")

[ABAP] Download internal table as TXT or CSV

" ty_output and tt_output are just dummy types

DATA: l_output_line    TYPE ty_output,
      l_output_lines   TYPE tt_output,  
      l_csv_output     TYPE truxs_t_text_data,
      l_txt_output     TYPE TABLE OF string,

PARAMETERS: p_alv   RADIOBUTTON GROUP rb1 DEFAULT 'X' USER-COMMAND radio,
            p_csv   RADIOBUTTON GROUP rb1,
            p_flcsv TYPE rlgrap-filename DEFAULT 'c:\temp\file.csv',
            p_txt   RADIOBUTTON GROUP rb1,
            p_fltxt TYPE rlgrap-filename DEFAULT 'c:\temp\file.txt'.

" fill table l_output_lines with your data you want to export as txt or csv

  IF p_csv = abap_true.

    CALL FUNCTION 'SAP_CONVERT_TO_CSV_FORMAT'
      TABLES
        i_tab_sap_data       = l_output_lines
      CHANGING
        i_tab_converted_data = l_csv_output.

    TRY.
        cl_gui_frontend_services=>gui_download( EXPORTING filename = CONV #( p_flcsv )
                                                          filetype = 'ASC'
                                                CHANGING  data_tab = l_csv_output ).  
      CATCH cx_root INTO DATA(e_text).
        MESSAGE e_text->get_text( ) TYPE 'I'.
    ENDTRY.


  ELSEIF p_txt = abap_true.

    LOOP AT l_output_lines INTO l_output_line.
      CALL FUNCTION 'SO_STRUCT_TO_CHAR'
        EXPORTING
          ip_struct = l_output_line
        IMPORTING
          ep_string = l_string.
      APPEND l_string TO l_txt_output.
    ENDLOOP.

    TRY.
        cl_gui_frontend_services=>gui_download( EXPORTING filename = CONV #( p_fltxt )
                                                          filetype = 'ASC'
                                                CHANGING  data_tab = l_txt_output ). 
      CATCH cx_root INTO e_text.
        MESSAGE e_text->get_text( ) TYPE 'I'.
    ENDTRY.

  ENDIF.