topic Re: Extract file from http://...zip into ABAP in Application Development and Automation Discussions

Extract file from http://...zip into ABAP

Former Member — Wed, 17 Aug 2005 12:51:11 GMT

Hello!

I know how to import a text file from HTTP server into ABAP (string variable) by using the CL_HTTP_CLIENT functionalities (thanks to <a href="https://www.sdn.sap.com/sdn/weblogs.sdn?blog=/pub/u/55615">Craig Cmehil's</a> weblog <a href="/people/sap.user72/blog/2005/05/03/sdn-meets-labs-integrated-web-content Meets Labs: Integrated Web Content</a>).

But now I have a <i>*.txt</i> file packed with other files into a <i>http://...zip</i> file. How do I extract and import the text file into ABAP string (or other) variable?

I'd prefer something direct, without using shell commands and filesystem.

Any ideas?

Thanks in advance!

Regards,

Igor

Re: Extract file from http://...zip into ABAP

Former Member — Wed, 17 Aug 2005 13:58:17 GMT

Hi,

I do not have access to an SAP system right now but have you checked the class CL_ABAP_GZIP method DECOMPRESS. There has been some discussion on this forum on using it. See if it helps.

Regards

Re: Extract file from http://...zip into ABAP

former_member182371 — Wed, 17 Aug 2005 14:07:12 GMT

Hi Igor,

long ago i found this example in forum "SAP Abap en Castellano".

First find out the winzip parameters accepted from ms-dos.

e.g. to compress two files 1.txt and 2.txt in destination.zip use:

CALL FUNCTION 'WS_EXECUTE'

EXPORTING

DOCUMENT = ' '
CD = ' '

COMMANDLINE = ' -min -a c:destino.zip c:1.txt c:2.txt'

INFORM = ' '

PROGRAM = 'winzip32.exe'

STAT = ' '
WINID = ' '
OSMAC_SCRIPT = ' '
OSMAC_CREATOR = ' '
WIN16_EXT = ' '
EXEC_RC = ' '
IMPORTING
RBUFF =
EXCEPTIONS
FRONTEND_ERROR = 1
NO_BATCH = 2
PROG_NOT_FOUND = 3
ILLEGAL_OPTION = 4
GUI_REFUSE_EXECUTE = 5
OTHERS = 6

IF sy-subrc <> 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

Re: Extract file from http://...zip into ABAP

Former Member — Thu, 18 Aug 2005 13:10:00 GMT

Thanks, guys!

Running WINZIP32.EXE as an external command is also an option. I'd have to first import the *.zip file from HTTP site, then download it to server (or PC) just to run WinZip, and then import again the extracted text file. I see this more as a workaround.

I'd loooove to see it work directly from HTTP site, without using the filesystem.

Before I try to do it with external command, I'd like to explore direct possibilities. From the posts about GUI_ABAP_GZIP I can see that it's an internal ABAP compress/decompress tool, not capable of decompressing files zipped with WinZip. And to make it more complicated: It's not just decompressing. I have to extract just one file of many which are zipped in a single *.zip file.

Not to mention that my second step is verifying the digital signature for the text file (it's currency exchange rates) contained in the same *.zip.

It's a tough one, isn't it?

Thanks!

Kind regards,

Igor

Re: Extract file from http://...zip into ABAP

former_member182371 — Thu, 18 Aug 2005 16:02:26 GMT

Hi Igor,

i don´t know if i´ve understood it right but as a suggestion what if you used a script for decompressing?.

Have a look at: http://java.sun.com/developer/technicalArticles/Programming/compression/

Best regards.

Re: Extract file from http://...zip into ABAP

Former Member — Mon, 05 Sep 2005 10:46:53 GMT

Hi, Calsadillo!

Thanks for an interesting suggestion! I could get a zip file with CL_HTTP_CLIENT, pass it to a script which extracts and returns unzipped file.

However, I don't know how to use a script in my ABAP program, whithout using the filesystem commands or JCo server. And especially not filesystem of a workstation, since my program should be able to run in background too.

How do I integrate a script with ABAP?

Thanks!

Igor

P.S. I was on vacation - that's why it took me so long to answer your post.

Re: Extract file from http://...zip into ABAP

former_member182371 — Mon, 05 Sep 2005 16:52:26 GMT

Hi Igor,

have a look at his link (just in case):

http://www.4soi.de/SAPCAR.php?Area=SAPGenie&;

Best regards.