Byte serving pdf files:

Hi,
problem:
i have some pdf files outside the webroot and i have to serve those files to user as a fast web view.
Note: fast web view is a feature of IIS not coldfusion application server.
currently how i m doing this made a virtual directory to those pdf files folder and i redirect the user to the attachment
so the file serve by IIS itself.
however using this approach user can get the file if he knows the attachment file name. so this is a security concern.
can anyone suggest me any alternate solution for this security concern.
thanks
Prashant Gupta
Blog: http://chakdecoldfusion.blogspot.com/

Hi mack,
thanks for the quick reply however this is not my problem.
if i serve the pdf files using <cfcontent tag it takes time to load in the browser even if pdf file is marked for fast web view.
so i choose that i create a virtual directory and redirect the user to that file.
in this way IIS handle this request and since this is in-built feature of web server so user is
able to see the pdf as fast web view.
but my main security concern in this apporach is if user has file name then he can use the same url and get some other pdf file.
however i appreciate your reply.
thanks
Prashant

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Hi,
i need to display a PDF file. The PDF is stored in a byte array. This works fine when i run my code (see below) from the .jpf via the debugger/browser, but when i use it as a portlet, in the portal, it does not work ?
Any help is much appreciated.
Thanks
Mark
byte[] pdfDocument = docStore.getPDF();
ServletOutputStream outPdf = response.getOutputStream();
response.setContentType("application/pdf");
outPdf.write(pdfDocument);
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Mark,
Note that the portal sets the content type (e.g, text/html) and encoding
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Subbu
Mark Gilleece wrote:
Hi,
i need to display a PDF file. The PDF is stored in a byte array. This works fine when i run my code (see below) from the .jpf via the debugger/browser, but when i use it as a portlet, in the portal, it does not work ?
Any help is much appreciated.
Thanks
Mark
byte[] pdfDocument = docStore.getPDF();
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Hi,
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Hi patel,
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Message was edited by:
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Hi,
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regards,
Hans
[email protected]

Hello Hans,
this is a little example from a program to send mail with picture. The problem is the same
form p_create_mail tables itab_html.
data : object_hd_change like sood1 occurs 0 with header line,
         objpara          like selc occurs 0 with header line,
         receivers        like soos1 occurs 0 with header line,
         packing_list     like soxpl occurs 0 with header line,
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         struct_user_adress like usaddress ,
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         v_buff(255) type c ,
         v_num(9) type n,
         v_length type i ,
         v_total_length type i,
         v_len(9) type n.
move : 'HTM' to object_hd_change-file_ext ,
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append object_hd_change.
* Find email addr for the username.
loop at s_bname.
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      exporting
        user_name                  = s_bname-low
      importing
        user_address               = struct_user_adress
      exceptions
        user_name_not_exists       = 1
        internal_error             = 2
        others                     = 3.
    select single smtp_addr
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           from adr6
           where addrnumber eq struct_user_adress-addrnumber
           and   persnumber eq struct_user_adress-persnumber.
    if sy-subrc eq space.
      move 'U' to receivers-recesc.
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endloop.
* Get the picture.
move '/sap_interfaces/D27/pzr_00/data/test/logopharma.gif'
       to v_file.
open dataset v_file for input in binary mode.
do.
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    move v_buff+0(v_length) to fic_attach-line+0(v_length).
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describe table fic_attach lines v_num.
describe field fic_attach-line length v_len.
move : 'Logo' to packing_list-objdes ,
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         '1'    to packing_list-body_start ,
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append packing_list.
* Send mail.
call function 'SO_OBJECT_SEND'
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           receivers                  = receivers
           packing_list               = packing_list
           att_cont                   = fic_attach
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Regards
Frédéric

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All,
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what device are you using?

How to show/print waiting message when system is serving pdf to browser

Hi,
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they way i do serving pdf to the browser is as below
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<%
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anybody know how to workaround this?
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just_a_kid83 wrote:
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Sample code to dynamically append bytes to pdf

Hi,
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Thanks,
Veerabhadrarao

user10710231 wrote:
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I'm trying to figure out why this particular snippet of code isn't working for me. I've got an applet which is supposed to read a .pdf and display it with a pdf-renderer library, but for some reason when I read in the .pdf files which sit on my server, they end up as being corrupt. I've tested it by writing the files back out again.
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public static ByteBuffer getAsByteArray(URL url) throws IOException {
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}I must be missing something, and I've been banging my head trying to figure it out. Any help is greatly appreciated. Thanks.

Keshav.. wrote:
I too was going through the same problem but I found for some pdfs it worked fine.I didnt get ur solution.Please explain bcoz it may work for every pdfThis thread is over 3 years old and dead. Please open a new thread which provides details of the problem you are having. Link to this thread if you think it is necessary.
I shall lock this thread.

Download PDF file from Application Server in BSP

Hello,
We have a requirement on which we want to download a PDF file stored in Application server using BSP application. I have used function module ARCHIVFILE_SERVER_TO_CLIENT but this FM will help only if i want to download file from GUI it won't work in BSP application.
Further i have used class CL_BSP_UTILITY and download method to download file from application server but it is not working in desired manner.
I am attaching my code for your reference:
DATA: BUTTON_EVENT TYPE REF TO CL_HTMLB_EVENT_BUTTON ,
           EVENT TYPE REF TO IF_HTMLB_DATA.
DATA: LS_HOURS LIKE LINE OF GT_HOURS.
DATA STR TYPE STRING.
DATA: OUTPUT TYPE STRING ,
          L_XSTRING TYPE XSTRING ,
           APP_TYPE TYPE STRING.
EVENT = CL_HTMLB_MANAGER=>GET_EVENT( REQUEST ).
DATA PHY_NAME_OUT     TYPE SAPB-SAPPFAD.
IF EVENT IS NOT INITIAL AND EVENT->EVENT_NAME = HTMLB_EVENTS=>BUTTON .
BUTTON_EVENT ?= EVENT .
CASE EVENT->EVENT_SERVER_NAME.
    WHEN 'test' .
      IF GT_HOURS IS NOT INITIAL.
        PHY_NAME_OUT = '/usr/sap/put/form16//01000200_2007.PDF'.
      OPEN DATASET PHY_NAME_OUT FOR INPUT IN TEXT MODE ENCODING DEFAULT.
        IF SY-SUBRC IS INITIAL.
          DO.
            READ DATASET PHY_NAME_OUT INTO STR.
            IF SY-SUBRC IS INITIAL.
            CONCATENATE
                OUTPUT
                str
                cl_abap_char_utilities=>cr_lf
INTO output SEPARATED BY space. "cl_abap_char_utilities=>horizontal_tab
            ELSE.
              EXIT.
            ENDIF.
          ENDDO.
        ENDIF.
*LOOP AT gt_hours INTO ls_hours.
*CONCATENATE
*OUTPUT
*ls_hours-hour
*cl_abap_char_utilities=>cr_lf
*INTO output SEPARATED BY space. "cl_abap_char_utilities=>horizontal_tab
*ENDLOOP.
        APP_TYPE = 'APPLICATION/PDF;charset=utf-16le'.
        CALL FUNCTION 'SCMS_STRING_TO_XSTRING'
          EXPORTING
            TEXT     = OUTPUT
            MIMETYPE = 'APPLICATION/PDF;charset=utf-16le'
          IMPORTING
            BUFFER   = L_XSTRING.
        CONCATENATE CL_ABAP_CHAR_UTILITIES=>BYTE_ORDER_MARK_LITTLE
        L_XSTRING
        INTO L_XSTRING IN BYTE MODE.
        CALL METHOD CL_BSP_UTILITY=>DOWNLOAD
        EXPORTING
        OBJECT_S = L_XSTRING
        CONTENT_TYPE = APP_TYPE
        CONTENT_DISPOSITION = 'attachment;filename=webforms.pdf'
        RESPONSE = _M_RESPONSE
        NAVIGATION = NAVIGATION.
      ENDIF.
ENDCASE.
ENDIF.
From this code i am able to download PDF file but it is not opening in local machine.
If any other way to download file then please suggest.
waiting for ur reply.
Regards,
Gagan

Hi,
you do the file reading wrong:
have a look at:
Local declarations.
data:
    components          type stringtab,
    component           type string,
    path                type text255,
    file                type text255,
    line_length         type i,
   filecontent_binary type sdokcntbin,
    rows                type sytabix,
    content             type sdokcntbin,
    exception           type ref to cx_sy_file_access_error,
    exception_tmf       type ref to cx_sy_too_many_files ,
    block_size          type i value 1022,
    length              type i.
field-symbols:
    <hex_container>     type x.
constants:
    c_dms_blk_size      type i value 2550.
clear file_size.
try.
      open dataset file_name for input in binary mode message message.
    catch cx_sy_file_open into exception.
      case exception->textid.
        when '4182174D03030063000000000A1551B1'. raise access_error.
        when '41825AD355C3005E000000000A1551B1'. raise open_error.
        when '47E8B03AECE5BA07E10000000A114829'. raise already_open.
        when others.
      endcase.
    catch cx_sy_file_authority into exception.
      case exception->textid.
        when '4182174D03030063000000000A1551B1'. raise access_error.
        when 'A70BB8396F051547E10000000A11447B'. raise authority_error.
        when others.
      endcase.
    catch cx_sy_too_many_files into exception_tmf.
      case exception_tmf->textid.
        when '8708B73915F6B645E10000000A11447B'. raise too_many_files.
        when others.
      endcase.
endtry.
do.
    try.
        read dataset file_name into filecontent_binary-line.
        if sy-subrc <> 0.
          add line_length to file_size.
          append filecontent_binary to file_content_binary.
          exit.
        else.
          add line_length to file_size.
          append filecontent_binary to file_content_binary.
        endif.
      catch cx_sy_file_open_mode into exception.
        case exception->textid.
          when '9207B73915F6B645E10000000A11447B'. raise cx_sy_file_open_mode.
          when '9807B73915F6B645E10000000A11447B'. raise read_only.
          when '9E07B73915F6B645E10000000A11447B'. raise not_open.
          when '409D273A2D824360E10000000A11447B'. raise incompatible_mode.
          when others.
        endcase.
    endtry.
enddo.
try.
      close dataset file_name.
    catch cx_sy_file_close into exception.
      case exception->textid.
        when '4182174D03030063000000000A1551B1'. raise access_error.
        when 'C10BB8396F051547E10000000A11447B'. raise close_error.
        when others.
      endcase.
    catch cx_sy_file_access_error into exception.
      case exception->textid.
        when '4182174D03030063000000000A1551B1'. raise access_error.
        when others.
      endcase.
endtry.
Get file size.
split file_name at '/' into table components.
describe table components lines sy-tfill.
read table components into component index sy-tfill.
path = file_name.
replace component in path with ''.
file = component.
call function '/EUH/MMS_GET_FILE_SIZE'
    exporting
      dir_name = path
      file_name = file
    importing
      file_size = file_size.
and function /euh/mms_get_file_size.
""Local Interface:
*" IMPORTING
*"     VALUE(DIR_NAME) TYPE TEXT255
*"     VALUE(FILE_NAME) TYPE TEXT255
*" EXPORTING
*"     VALUE(FILE_SIZE) TYPE SDOK_FSIZE
*" EXCEPTIONS
*"      NO_AUTHORITY
*"      ACTIVITY_UNKNOWN
*"      NOT_A_DIRECTORY
*"      NO_MEDIA_IN_DRIVE
*"      TOO_MANY_ERRORS
*"      TOO_MANY_FILES
*"      BRACKET_ERROR_IN_FILENAME
*"      NO_SUCH_PARAMETER
types: begin of files,
           line like ocs_file,
         end of files.
data: file type files,
     f_subrc like sy-subrc value 0,
     errno(3)    type c,
     errmsg(40) type c,
     pos                        type i,
     len                        type i,
     parameter(120)             type c,
     help1(120)                 type c,
     help2(120)                 type c,
     error_counter              type i.
data:
    dir_list like ocs_file occurs 0 with header line.
CASE sy-subrc.
   WHEN 1. f_subrc = 64.
   WHEN 2. f_subrc = 65.
   WHEN 0.
search dir_name for 'SY-HOST'.    "Is SY-HOST used in directory name?
if sy-subrc = 0.
    pos = sy-fdpos + 7.
    move dir_name(sy-fdpos) to help1.
    move dir_name+pos to help2.
    concatenate help1 sy-host help2 into dir_name.
endif.
do 12 times.                                 " To avoid endless loop
    if dir_name cs '$('.           " Replace parameter by their value
      pos = sy-fdpos + 2.
      if dir_name cs ')'.
        len = sy-fdpos - pos.
        if len le 0.
          f_subrc = 4. exit.
        else.
          parameter = dir_name+pos(len).
          call 'C_SAPGPARAM' id 'NAME' field parameter
                           id 'VALUE' field parameter.
          if sy-subrc = 0.
            len = pos + len + 1.
            pos = pos - 2.
            if pos > 0.
              move dir_name(pos) to help1.
            else.
              help1 = ''.
            endif.
            pos = strlen( dir_name ).
            if pos > len.
              move dir_name+len to help2.
            else.
              help2 = ''.
            endif.
            concatenate help1 parameter help2 into dir_name.
          else.
            f_subrc = 8. exit.
          endif.
        endif.
      else.
        exit.
      endif.
    else.
      exit.
    endif.
enddo.
shift dir_name right deleting trailing '/\ '.
shift dir_name left deleting leading space.
call 'C_DIR_READ_FINISH'                      " this is from RSWATCH0
        id 'ERRNO' field errno
        id 'ERRMSG' field errmsg.
call 'C_DIR_READ_START'
        id 'DIR'    field dir_name
        id 'FILE'   field file_name
        id 'ERRNO' field errno
        id 'ERRMSG' field errmsg.
case sy-subrc.
    when 1.
      case errno.
        when 2 or 20. f_subrc = f_subrc + 66.
        when ' '. f_subrc = f_subrc + 67.
      endcase.
    when 0.
      clear error_counter.
      do.
        clear file.
        clear dir_list.
        call 'C_DIR_READ_NEXT'
            id 'TYPE'   field file-line-type
            id 'NAME'   field file-line-name
            id 'LEN'    field file-line-len
            id 'OWNER' field file-line-owner
            id 'MTIME' field file-line-mtime
            id 'MODE'   field file-line-acc_mode
            id 'ERRNO' field errno
            id 'ERRMSG' field errmsg.   "sy-subrc = 3 is e.g. if return
        if sy-subrc = 0 or sy-subrc = 3."data do not fit into variables
          perform p6_to_date_time_tz(rstr0400) using
                file-line-mtime
                file-line-mod_time
                file-line-mod_date.
          file_size = file-line-len.
          dir_list = file-line.
          append dir_list.
        elseif sy-subrc = 1.                 " nothing (more) found
          exit.
        else.
          if error_counter > 50.
            call 'C_DIR_READ_FINISH'
                id 'ERRNO' field errno
                id 'ERRMSG' field errmsg.
            pos = f_subrc mod 2.
            if pos = 0. f_subrc = f_subrc + 1. endif.
            exit.
          endif.
          add 1 to error_counter.
        endif.
        if sy-index > 1000.
          pos = f_subrc mod 4.
          if pos = 0. f_subrc = f_subrc + 2. endif.
          exit.
        endif.
      enddo.
      call 'C_DIR_READ_FINISH'
           id 'ERRNO' field errno
           id 'ERRMSG' field errmsg.
      if sy-opsys(3) = 'Win' and not ( file_name cs '*' ).
        describe table dir_list lines len.
        if len = 0.
          help1 = file_name.
          translate help1 to upper case.
          translate help1 using
               'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
          call 'C_DIR_READ_START'
                id 'DIR'    field dir_name
                id 'FILE'   field help1.
          if sy-subrc = 0.
            clear error_counter.
            do.
              clear file.
              clear dir_list.
              call 'C_DIR_READ_NEXT'
                  id 'TYPE'   field file-line-type
                  id 'NAME'   field file-line-name
                  id 'LEN'    field file-line-len
                  id 'OWNER' field file-line-owner
                  id 'MTIME' field file-line-mtime
                  id 'MODE'   field file-line-acc_mode
                  id 'ERRNO' field errno
                  id 'ERRMSG' field errmsg.
              if sy-subrc = 0 or sy-subrc = 3.
                help2 = file_name.
                translate help2 to upper case.
                help1 = file-line-name.
                translate help1 to upper case.
                if help1 = help2.
                  perform p6_to_date_time_tz(rstr0400) using
                     file-line-mtime
                     file-line-mod_time
                     file-line-mod_date.
                  dir_list = file-line.
                  append dir_list.
                endif.
              elseif sy-subrc = 1.
                exit.
              else.
                if error_counter > 50.
                  call 'C_DIR_READ_FINISH'
                      id 'ERRNO' field errno
                      id 'ERRMSG' field errmsg.
                  pos = f_subrc mod 2.
                  if pos = 0. f_subrc = f_subrc + 1. endif.
                  exit.
                endif.
                add 1 to error_counter.
              endif.
              if sy-index > 1000.
                pos = f_subrc mod 4.
                if pos = 0. f_subrc = f_subrc + 2. endif.
                exit.
              endif.
            enddo.
            call 'C_DIR_READ_FINISH'
                 id 'ERRNO' field errno
                 id 'ERRMSG' field errmsg.
          endif.
        endif.
      endif.
endcase.
ENDCASE.
CASE f_subrc.
   WHEN 1 OR 3.             RAISE too_many_errors.
   WHEN 2.                  RAISE too_many_files.
   WHEN 4 OR 5 OR 6 OR 7 OR 70 OR 71.
     RAISE bracket_error_in_filename.
   WHEN 8 OR 9 OR 10 OR 11 OR 74 OR 75.
     RAISE no_such_parameter.
   WHEN 64.                 RAISE no_authority.
   WHEN 65.                 RAISE activity_unknown.
   WHEN 66.                 RAISE not_a_directory.
   WHEN 67.                 RAISE no_media_in_drive.
ENDCASE.
endfunction.
Now you will be able to get the filesize and the file in SDOK format sdokbin.
Okay.
You have to build an request and push the content to the user like:
call method server->response->set_header_field( name = 'Content-Type' value = value ).
describe field file_content_binary-line length line_length in byte mode.
bytes_rest = file-size.
loop at file_content_binaries assigning <file_content_binary>.
    move <file_content_binary>-line to data.
    if bytes_rest <= 0. "mismatch between line values and size
      exit.
    endif.
    if bytes_rest >= line_length.
      call method server->response->append_data( data = data
        length = line_length ).
    else.
      call method server->response->append_data( data = data
        length = bytes_rest ).
    endif.
    bytes_rest = bytes_rest - line_length.
endloop.
This will work.
You can set the header fields like you want. Have also a look at sicf node contentserver
and its handler: CL_HTTP_EXT_CSIF

PDF file downloading from server to client

Hello,
I am a newbie to Oralce UCM. Writing a component to merge some PDF files and allow user to save/open it on client side.
The file downloaded is of 0 bytes and when opened it says -
Adobe Reader could not open the the file because it is either not a suppported file type or because the file is damaged(It was sent as an email attachment and was not correctly decoded)
this.m_binder.m_contentType = "application/pdf";
this.m_binder.m_clientEncoding = "utf-8";
DataStreamWrapper dataStreamWrapper = this.createNewDownloadStream();
dataStreamWrapper.m_clientFileName = "MergedPDF";
dataStreamWrapper.m_inStream = mergedPDF.getDocumentInputStream();
dataStreamWrapper.m_inStreamActive = true;
dataStreamWrapper.m_dataType = "application/pdf";
try {
this.m_httpImplementor.sendStreamResponse(this.m_binder, dataStreamWrapper);
} catch (ServiceException e) {
e.printStackTrace();
Some clue would really help :)
Thanks,
Fauzia

Hi Jiri,
I have created and HCSP page where data is being populated dynamically. User may select some of the files from this page through checkbox. Page also has a download button which when clicked will merge all the selected documents and let the user open/save it.
Information like Native URL, docName is passed on to the content server when the component is called (download button-click).
Merging the PDFs, I have used a custom utility which takes url as a parameter and returns back the inputstream of merged PDF.
And last, I have used DataStreamWrapper to send this inputstream back to the client as an attachment which can be read by IE.
Also, I thought at first to use HTTPHeader where parameters like content-disposition, content-type can be set. But UCM already provides a better way to achieve this i.e. through DataStreamWrapper.
public class MergePDF extends Service {
     public List<PdfDocumentSource> createPdfDocumentSourceList(
               String... urlStrings) throws MalformedURLException {
          List<PdfDocumentSource> sourceList = new ArrayList<PdfDocumentSource>(
                    urlStrings.length);
          for (String url : urlStrings) {
               URL urlDoc = new URL(url);
               PdfDocumentSource pdfSource = new UrlPdfDocumentSource(urlDoc);
               try {
                    System.out.println("URL in create method - "+urlDoc);
                    System.out.println("PDFSource input stream - "+pdfSource.getDocumentInputStream().available());
               } catch (IOException e) {
                    e.printStackTrace();
               sourceList.add(pdfSource);
          return sourceList;
     public void mergeAll() throws DataException, ServiceException {
          Properties property = this.m_binder.getLocalData();
          String urlStrings = "";
          List<PdfDocumentSource> sourceList;
          PdfDocumentSource mergedPDF = null;
          urlStrings = property.getProperty("webURL");
          String[] urls = urlStrings.split(";");
          try {
               sourceList = createPdfDocumentSourceList(urls);
               PdfMerge merge = new PdfMerge(sourceList, true);
               try {
                    mergedPDF = merge.createMergedPdf();
                    transferToClient(mergedPDF);
               } catch (PdfProcessingException e) {
                    e.printStackTrace();
          } catch (MalformedURLException e) {
               e.printStackTrace();
          System.out.println("hello123");
          System.out.println("URLS - "+urlStrings);
     public void transferToClient(PdfDocumentSource mergedPDF){
          this.m_binder.m_contentType = "application/pdf";
          this.m_binder.m_clientEncoding = "utf-8";
          DataStreamWrapper dataStreamWrapper = this.createNewDownloadStream();
          dataStreamWrapper.m_clientFileName = "MergedPDF.pdf";
          dataStreamWrapper.m_inStream = mergedPDF.getDocumentInputStream();
          //dataStreamWrapper.m_inStreamActive = true;
          dataStreamWrapper.m_dataType = "application/pdf";
          try {
               this.m_httpImplementor.sendStreamResponse(this.m_binder, dataStreamWrapper);
          } catch (ServiceException e) {
               e.printStackTrace();
          * StringBuffer sb = this.createHttpResponseHeader();
          sb.append("Content-Type: application/pdf");
          sb.append("Content-Disposition: attachment; filename=fname.ext");
          //m_headerStr
          this.m_headerStr = sb.toString();
}

Using a servlet to read a pdf file that is in remote server

Hi,
I read some topics about how to read a pdf file using a servlet...but my issue is that my pdf files are on a remote Sun solaris server (intranet) and my servlet will be in a public network (internet), so my question is, still be possible to use this solution to read my remote file ? how i can access the remote file ??
any idea from where I can start ??
best regards,
carlos.

You may use a FTP client component to connect with your servlet to the Sun server, retrieve the bytes and serve them to the browser. Instead of reading the stream from a local file, you will be reading from a network socket, but the code -if well written and designed- may be very similar.
There are many good ftp client components for java, you may also use other protocols like HTTP or SCP (ssh file transfer).
Regards,
Martin Cordova
http://www.martincordova.com
Dinamica framework for J2EE
- the easiest way to Java webapps...

Byte serving or pdf tuning

hi all
i would like to provide byte serving or pdf tuning in iplanet web server 6.0...let me briefly ..explain....
when user views pdf file from iplanet web server in the place of downloading total pdf file...i want sent page by page to browser...so, how to provide byteserving in iplanet...
thanks..

Hi
thanks for reply
i am not disabling the http byte range..i want to tune..the byte range..
web server can not send the complete large document...at a time..so, user should wait..to see the document ...
in the place of that.....when the user is viewing..the first page...the web server continiosly sends the data...
so, user does not need to wait...to download the complte large document..i.e. pdf file
thanks

Byte Serving for pdf

Hello, I make a servlet that sends pdf with byte serving. I have no problems with Windows Clients but with Macintosh clients (Explorer, Netscape 7 works) acrobat waits like expecting some data. Any idea if I must use some special header or do you have examples?

It could be a content length problem.
If you are creating the pdf 'on the fly' you could try
writing it to a ByteArrayPrintWriter, convert it to a
byte array, setContentLength(byteArray.length()) and
write the byte array to the output stream.
Hope this helps.Thanks. I'm not creating the pdf. Its a file on my server that I send. So I put the content-length to the size of the file.

Byte serving pdf files:

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