Homelab, Linux, JS & ABAP (~˘▾˘)~
 

Tag: PDF

HR

[HR] A1-Meldeverfahren

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Übersicht

Gute Zusammenfassung: https://www.iprocon.de/abbildung-des-a1-meldeverfahrens-in-sap-hcm/

2682093 – Informationen zur Umsetzung des A1-Meldeverfahrens im SAP-System (siehe auch das PDF im Hinweis)

2730927 – A1-Verfahren: Hilfestellung zum Customizing

2833850 – A1-Verfahren: Archivierung der A1-Bescheinigung und Erweiterung für das BAdI HRPAYDE_A1_EMAIL

2841779 – A1-Verfahren: ESS-Szenario (Web-Dynpro ABAP) (Paket PAOC_ESS_A1_DE)

Die Datenerfassung der Antragsdaten erfolgt im Infotyp: 0700 (Elektronischer Datenaustausch)
Subtypen:

  • DXA1 (A1: Antrag Entsendebescheinigung)
  • DXAV (A1: Antrag Ausnahmevereinbarung)

Reports zur Erstellung der Meldungen und der Meldedateien:

  • Personal → Personalabrechnung → Europa → Deutschland → Folgeaktivitäten → Periodenunabhängig → Abrechnungszusatz → A1-Meldeverfahren → Ausgangsmeldungen

Reports zur Verarbeitung der Eingangsmeldungen:

  • Personal → Personalabrechnung → Europa → Deutschland → Folgeaktivitäten → Periodenunabhängig → Abrechnungszusatz → A1-Meldeverfahren → Eingangsmeldungen

Behördenkommunikation (B2A): Transaktion PB2A

  • Personal → Personalabrechnung → Europa → Deutschland → Folgeaktivitäten → Periodenunabhängig → Behördenkommunikation (B2A) → B2A-Manager

Hilfreiche Entwicklungsobjekte

Paket: P01S

Reports:

Klassen:

Für mich hilfreich waren folgenden Klassen:

  • CL_HRPAYDE_A1_NOTIF (Klasse für A1-Meldungen)
  • CL_HRPAYDE_A1_NOTIF_DISPLAYER (ALV-Ausgabe für A1-Meldungen)
  • CL_HRPAYDE_A1_ALV_EVNT_HANDLER (Ereignisbehandler für A1-spezifische Ereignisse)

PDFs der A1-Meldungen von Datenbank lesen

*&---------------------------------------------------------------------*
*& Tabellen A1-Meldeverfahren:
*& P01A1_STAT    - A1-Verfahren: Verwaltungstabelle
*& P01A1_RAWDATA - A1-Verfahren: Rohdaten einer Meldung
*&---------------------------------------------------------------------*

GET peras.

  SELECT * INTO TABLE @DATA(lt_p01a1_stat) FROM p01a1_stat
    WHERE pernr  = @pernr-pernr
      AND mdtyp  = '2'
      AND status = '23'
      AND mzbeg <= @pn-endda
      AND mzbeg >= @pn-begda.

  LOOP AT lt_p01a1_stat INTO DATA(ls_p01a1_stat).

    SELECT SINGLE * INTO @DATA(ls_p01a1_rawdata) FROM p01a1_rawdata
      WHERE guid = @ls_p01a1_stat-guid
        AND lfdnr = ( SELECT MAX( lfdnr ) FROM p01a1_rawdata WHERE guid = @ls_p01a1_stat-guid ). "höchste lfdnr nehmen

    DATA(pdf_xstring) = ls_p01a1_rawdata-rawdata.

  ENDLOOP.
JavaScript / nodejs

[nodejs] Extract first page of a PDF using pdf-lib

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const { PDFDocument } = require('pdf-lib')

// file = { fileName: 'test1.pdf, content: arraybuffer }     

const originalPdf = await PDFDocument.load(file.content, { ignoreEncryption: true })
const newPdf = await PDFDocument.create()
const [firstPage] = await newPdf.copyPages(originalPdf, [0]) // <-- 0 is the first page
newPdf.addPage(firstPage)
const firstPagePdf = await newPdf.save()

file.content = Buffer.from(firstPagePdf)
JavaScript / nodejs

[nodejs] Merge PDFs using pdf-lib

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https://github.com/Hopding/pdf-lib

const { PDFDocument } = require('pdf-lib')

// files = [{ fileName: 'test1.pdf, content: arraybuffer },{ fileName: 'test2.pdf, content: arraybuffer }]

mergePdfs: async function (files) {
        try {
            const mergedPdf = await PDFDocument.create()

            for (let file of files) {
                const pdf = await PDFDocument.load(file.content)
                const copiedPages = await mergedPdf.copyPages(pdf, pdf.getPageIndices())
                copiedPages.forEach((page) => mergedPdf.addPage(page))
            }

            const mergedPdfFile = await mergedPdf.save()
            const buffer = Buffer.from(mergedPdfFile)
            return await buffer.toString('base64') // return as buffer or base64 encoded file
        } catch (err) {
            console.error(err.message)
        }
}
ABAP, Classes

[ABAP] Display PDF in HTML Control

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  DATA lt_data TYPE STANDARD TABLE OF x255.
  CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
    EXPORTING
      buffer     = lv_xstring "pdf data
    TABLES
      binary_tab = lt_data.  

 DATA(o_html) = NEW cl_gui_html_viewer( parent = cl_gui_container=>default_screen ).

* URL zu HTML holen
  DATA: lv_url TYPE swk_url.
  o_html->load_data( EXPORTING type         = 'BIN'
                               subtype      = 'PDF'
                     IMPORTING assigned_url = lv_url
                     CHANGING  data_table   = lt_data ).
* HTML anzeigen
  o_html->show_url( lv_url ).

* erzwingt Anzeige über cl_gui_container=>default_screen
  WRITE: / space.
OData

[ABAP] OData – GET_STREAM implementation to return a PDF

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  METHOD /iwbep/if_mgw_appl_srv_runtime~get_stream.

* This method get's called when a media file is queried with $value. A binary stream will be returned.

    TRY.
        DATA(file_id) = VALUE zfile_id( it_key_tab[ name = 'file_id' ]-value ).
      CATCH cx_sy_itab_line_not_found.
        RETURN. " leave here when no file_id provided
    ENDTRY.
  
    DATA(ls_file) = get_file( file_id ) " read your file you want to return (if it's not yet a binary stream, convert it)

    DATA(ls_stream) = VALUE ty_s_media_resource( value     = ls_file-value
                                                 mime_type = ls_file-mimetype ). " in my case it's 'application/pdf'

    " necessary to display the filename instead of $value in the viewer title
    TRY.
        " create pdf object
        DATA(lo_fp)     = cl_fp=>get_reference( ).
        DATA(lo_pdfobj) = lo_fp->create_pdf_object( connection = 'ADC' ).
        lo_pdfobj->set_document( pdfdata = ls_stream-value ).
        " set title
        lo_pdfobj->set_metadata( VALUE #( title = ls_file-filename ) ).
        lo_pdfobj->execute( ).
        " get pdf with title
        lo_pdfobj->get_document( IMPORTING pdfdata = ls_stream-value ).

      CATCH cx_fp_runtime_internal
            cx_fp_runtime_system
            cx_fp_runtime_usage INTO DATA(lo_fpex).
    ENDTRY.

    copy_data_to_ref( EXPORTING is_data = ls_stream
                      CHANGING  cr_data = er_stream ).

    " necessary for the pdf to be opened inline instead of a download (also sets the filename when downloaded)
    /iwbep/if_mgw_conv_srv_runtime~set_header( VALUE #( name  = 'content-disposition'
                                                        value = |inline; filename={ ls_file-filename }| ) ).

  ENDMETHOD

Quick way to open a PDFViewer in your UI5 App:

			const pdfViewer = new PDFViewer()
			pdfViewer.setSource("/sap/opu/odata/ZMY_SEVICE" + my_path + "/$value")  // my_path could be something like this "/PdfSet('file_id')"
			pdfViewer.setTitle("My PDFViewer Title") // title of the popup, not the viewer
			pdfViewer.open()
PDF.js

[PDF.js] Set light and dark theme manually

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The new PDF.js viewer design Photon supports a light and a dark mode. By default, the theme is set automatically. To overwrite this, you can set the viewerCssTheme property.

I’ve embedded my PDF viewer in an iFrame like this:

<iframe id="pdf-js-viewer" src="/pdf/web/viewer.html" title="webviewer" frameborder="0" width="100%" height="700" allowfullscreen="" webkitallowfullscreen=""/>

By setting the viewerCssTheme property, you are able to change the PDF viewer theme. It can be modified using the PDFViewerApplicationOptions.set() function and there are three possible values. The property has to be set before the Viewer is initialized. To archive this, you can listen to the event webviewerloaded (read more about it here). In my case, I also had to call _forceCssTheme() after that.

                document.addEventListener("webviewerloaded", async () => {
                    let pdfViewerIFrame = document.getElementById("pdf-js-viewer")
                    // https://github.com/mozilla/pdf.js/blob/master/web/app_options.js
                    pdfViewerIFrame.contentWindow.PDFViewerApplicationOptions.set("viewerCssTheme", 1)       // 0=automatic theme, 1=light theme, 2=dark theme 
                    pdfViewerIFrame.contentWindow.PDFViewerApplication._forceCssTheme()
                })

PDF.js

[PDF.js] Allow PDF documents to disable copying in the viewer

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With pull request 11789, the PDF Viewer respects the PDF property Content Copying, if the viewer option enablePermissions is set to true.

I’ve embedded my viewer in an iFrame like this:

<iframe id="pdf-js-viewer" src="/pdf/web/viewer.html" title="webviewer" frameborder="0" width="100%" height="700" allowfullscreen="" webkitallowfullscreen=""/>

The enablePermissions property can be modified using the PDFViewerApplicationOptions.set() function. The property has to be set before the Viewer is initialized. To archive this, you can listen to the event webviewerloaded (read more about it here). 

                document.addEventListener("webviewerloaded", async () => {
                    let pdfViewerIFrame = document.getElementById("pdf-js-viewer")
                    //https://github.com/mozilla/pdf.js/blob/master/web/app_options.js
                    pdfViewerIFrame.contentWindow.PDFViewerApplicationOptions.set("enablePermissions", true) //allow PDF documents to disable copying in the viewer
                    pdfViewerIFrame.contentWindow.PDFViewerApplicationOptions.set("defaultUrl", "") //prevent loading default pdf
                    }
                })

PDF.js

[PDF.js] Prevent loading default pdf

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This can be done by appending ?file= to the src path, like it is mentionend here.

<!-- "?file=" prevents loading the default document -->
<iframe id="pdf-js-viewer" src="/pdf/web/viewer.html?file=" title="webviewer" frameborder="0" width="100%" height="700" allowfullscreen="" webkitallowfullscreen=""/>

Or by setting the variable defaultUrl to blank using the onload event.

document.addEventListener("webviewerloaded", async () => {
   let pdfViewerIFrame = document.getElementById("pdf-js-viewer")
   //https://github.com/mozilla/pdf.js/blob/master/web/app_options.js
   pdfViewerIFrame.contentWindow.PDFViewerApplicationOptions.set("defaultUrl", "") //prevent loading default pdf
})

JavaScript / nodejs

[nodejs] read and write a file

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https://nodejs.dev/learn/reading-files-with-nodejs

https://nodejs.dev/learn/writing-files-with-nodejs

        const fs = require("fs")

        try {
            // read from local folder
            const localPDF = fs.readFileSync('PDFs/myFile.pdf')

            //write back to local folder
            fs.writeFileSync('PDFs/writtenBack.pdf', localPDF )

        } catch (err) {
            console.error(err)
        }

Converting to Base64

        try {
            // read from local folder
            const localPDF = fs.readFileSync('PDFs/myFile.pdf')
            const localBase64 = localPDF.toString('base64')

            //write back to local folder
            fs.writeFileSync(`PDFs/writtenBack.pdf`, localBase64, {encoding: 'base64'})

        } catch (err) {
            console.error(err)
        }

Reading and writing using streams with pipe

        //read and write local file
        const reader = fs.createReadStream("PDFs/myFile.pdf")
        const writer = fs.createWriteStream('PDFs/writtenBack.pdf');
        reader.pipe(writer)