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Mainframe : HTML page COPY/GET from a server


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naseera

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Joined: 22 Nov 2010
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PostPosted: Wed Jan 01, 2014 8:37 pm
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Is there any process to copy/get a page in sequential file from a server in mainframe?

Thanks !
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Bill Woodger

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PostPosted: Wed Jan 01, 2014 9:05 pm
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You're going to have to be a lot clearer about what you are asking.
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Robert Sample

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PostPosted: Wed Jan 01, 2014 10:05 pm
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Terminology is critical in IT, where similar terms may mean very different things. On a mainframe, sequential files have "records" -- NEVER pages. In fact, the only real use of the term "page" on the mainframe is to refer to 4096-byte blocks of main memory that can be swapped to disk as part of the operating system storage management process.

Furthermore, your question is not clear -- "copy/get" FROM where and TO where? Individual records or the entire file?

Perhaps if you provide a better explanation of what you want to know, we'll be able to provide clearer answers.
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naseera

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PostPosted: Wed Jan 01, 2014 10:39 pm
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ok.. Let me explain in details. I want to copy the text of an html page to a sequential file. For example like through NDM process we copy a .txt file from a destination directory to sequential file. I want copy the contents of an html page to a sequentail file. Is this possible?
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Robert Sample

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PostPosted: Wed Jan 01, 2014 11:40 pm
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The contents of an HTML page -- as long as you are NOT using a web browser to view it -- are merely text records. So the basic answer to your question is yes, you may copy HTML text to a sequential file. This file typically cannot be used in a web browser since web browsers do not handle mainframe file formats. There are some exceptions (IBM provides a way to display a sequential file in a web browser, for example), but the displayed text will be text, not HTML, typically.
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vasanthz

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PostPosted: Thu Jan 02, 2014 3:18 am
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Hello,

If you open a HTML file in notepad it is simple text tags, which means that the simple text tags are translated by web browser as neat webpages.

Is the HTML page hosted in "internet"? and you want to get that page into mainframe?

I think Mainframe SAS can do it, if SAS is allowed access to WWW, I have tried the below code in PC, it should work in mainframe as well(I hope SAS takes care of the ASCII to EBCDIC conversion automatically)
Code:
Filename www url 'http://knowyourmeme.com/memes/doge';
data _null_;
infile www url end=eof;
input;
file 'WELLS.SOME.OUTPUT.FILE';
put _infile_;
run;


If the html file is present in some file server location, then again filename statement in SAS can be modified to login to file server and access the html in same way.
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naseera

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PostPosted: Thu Jan 02, 2014 7:29 pm
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Robert, you replied below text: How to do this? can you give me an example through JCL/REXX?

<So the basic answer to your question is yes, you may copy HTML text to a sequential file.>


vasanthz, This REXX code is not working for me. I am not running in SAS environment.

Thanks !!
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dick scherrer

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PostPosted: Thu Jan 02, 2014 7:52 pm
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Hello,

You need to work with Your support people. They can explain the specifics of ftp'ing a file to the mainframe.

You need to make sure it is the definition of the screen, not the data on the screen that you want to transfer.

I'm not clear on which you want . . .
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vasanthz

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PostPosted: Thu Jan 02, 2014 7:56 pm
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Quote:
vasanthz, This REXX code is not working for me. I am not running in SAS environment.

The code was a SAS program.
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GuyC

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Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Thu Jan 02, 2014 9:29 pm
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I found this on the net ยง(Googling for ZOS rexx HTTP Client) :
groups.google.com/forum/#!topic/bit.listserv.tsorexx/lk74hblwn3U

I have no idea if it works or not
As far as I can see written by Lindy Mayfield

Code:

/*  Rexx  */
/* A very simple Rexx program to "get" a web page */ Trace Off


/* Note that the parsing for this syntax wasn't done --
   http://my.server:8080/page  */

web_page = "http://your.server.com/your/webpage.html"
web_page = "http://www.sas.com/software/sas9/"

httpport = '80'
Verbose = 1
CRLF = '0D25'x

parse var web_page "http://"webserver"/"webfile

say "Getting file" webfile "from server" webserver

srv = Socket('Initialize', 'wget')
if verbose then
  say 'Socket Initialized ===>' srv

srv = Socket('GetHostId')
parse var srv src ipaddress
if verbose then
  say 'gethostid retd ===>' srv

srv= Socket('Socket')
parse var srv src ssockid
if verbose then
  say 'socket   retd   ===>' srv
if src > 0 then signal bye

srv = Socket('Gethostbyname',webserver)
parse var srv src serverip
if verbose then
  say 'gethbynm retd   ===>' srv

srv = Socket('Setsockopt',ssockid,'SOL_SOCKET','SO_REUSEADDR','ON')
parse var srv src
if verbose then
  say 'Setsockopt ===>' srv

srv = Socket('Setsockopt',ssockid,'SOL_SOCKET','SO_LINGER','OFF')
parse var srv src
if verbose then
  say 'Setsockopt ===>' srv

srv = Socket('Setsockopt',ssockid,'SOL_SOCKET','SO_ASCII','ON')
parse var srv src
if verbose then
  say 'Setsockopt ===>' srv

srv = Socket('Connect',ssockid,'AF_INET' httpport serverip) parse var srv src if verbose then
  say 'Connect    ===>' srv
If src > 0
  then do
     Say 'Connect to' webserver 'returned' srv
     Say 'Error: Aborting process'
     Return
End

Say ' '
Say 'Connected to server' webserver 'ip='serverip 'port='httpport Say ' '


/*
srv = Socket('Recv',ssockid)
parse var srv src len data

Say 'Server returned' len 'bytes of data:'
Say 'read>>' data
*/

say 'Sending HTTP request of' len 'bytes:'
httpget = 'GET' '/'webfile 'HTTP/1.0' CRLF srv = Socket('Send',ssockid,httpget) parse var srv src len say 'write>>' httpget

say 'Sending HTTP request of' len 'bytes:'
hosttxt = 'Host:' webserver':'httpport CRLF srv = Socket('Send',ssockid,hosttxt) parse var srv src len say 'write>>' hosttxt

/* Need one extra CRLF... */
srv = Socket('Send',ssockid,CRLF)
parse var srv src len

srv = Socket('Recv',ssockid)
parse var srv src len data

Say 'Server returned (headers)' len 'bytes of data:'
Say 'read>>' data

srv = Socket('Recv',ssockid)
parse var srv src len data

Say 'Server returned (data)' len 'bytes of data:'
Say 'read>>' data


bye:

srv = Socket('Close',ssockid)
if verbose then
  say 'Close returned ===>' srv
Say ' '
say 'Closing Connection to server.'
Say ' '

return
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Ed Goodman

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Joined: 08 Jun 2011
Posts: 556
Location: USA

PostPosted: Thu Jan 02, 2014 10:11 pm
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I've used this and works OK. You have to make sure the Socket library is available.

I had to run this in batch so I could add that library to the steplib.
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