php-general Digest 12 Jun 2005 01:14:05 -0000 Issue 3507
Topics (messages 216846 through 216853):
Howto implement atomical actions
216846 by: Andy Pieters
216848 by: Chris Shiflett
216851 by: Manuel Lemos
216853 by: Richard Lynch
Re: Getting help on using the PHP lists
216847 by: Paul Waring
Re: using require
216849 by: Christian Heinrich
news php 5.0.5/5.1
216850 by: mbneto
Re: fwrite/fopen
216852 by: Mister Jack
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Hi all
I am developing a web interface to patch a program. The user uploads the
patch and after uncompressing and verification of signature, the update
should take place. However I do not want users to be able to start an update
and then abort the process by stopping to load the page.
I imagine that by calling a program externally from php that it would be
possible but there are limitations because of the distribution. The systems
are installed on php+mysql+apache servers but no shell access is granted.
I greatly appreciate help in this matter.
With kind regards
Andy
--
Registered Linux User Number 379093
-- --BEGIN GEEK CODE BLOCK-----
Version: 3.1
GAT/O/>E$ d-(---)>+ s:(+)>: a--(-)>? C++++$(+++) UL++++>++++$ P-(+)>++
L+++>++++$ E---(-)@ W+++>+++$ !N@ o? !K? W--(---) !O !M- V-- PS++(+++)
PE--(-) Y+ PGP++(+++) t+(++) 5-- X++ R*(+)@ !tv b-() DI(+) D+(+++) G(+)
e>++++$@ h++(*) r-->++ y--()>++++
-- ---END GEEK CODE BLOCK------
--
Check out these few php utilities that I released
under the GPL2 and that are meant for use with a
php cli binary:
http://www.vlaamse-kern.com/sas/
--
--
pgpTHPePJkEcr.pgp
Description: PGP signature
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--- Begin Message ---
Andy Pieters wrote:
I am developing a web interface to patch a program. The user uploads
the patch and after uncompressing and verification of signature, the
update should take place. However I do not want users to be able to
start an update and then abort the process by stopping to load the
page.
You can ignore user aborts:
http://php.net/ignore_user_abort
This has very little to do with atomic actions, but maybe it answers
your question. :-)
Chris
--
Chris Shiflett
Brain Bulb, The PHP Consultancy
http://brainbulb.com/
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--- Begin Message ---
Hello,
on 06/11/2005 10:46 AM Andy Pieters said the following:
I am developing a web interface to patch a program. The user uploads the
patch and after uncompressing and verification of signature, the update
should take place. However I do not want users to be able to start an update
and then abort the process by stopping to load the page.
You can try using flock in exclusive mode on a lock file of a fixed file
name.
--
Regards,
Manuel Lemos
PHP Classes - Free ready to use OOP components written in PHP
http://www.phpclasses.org/
PHP Reviews - Reviews of PHP books and other products
http://www.phpclasses.org/reviews/
Metastorage - Data object relational mapping layer generator
http://www.meta-language.net/metastorage.html
--- End Message ---
--- Begin Message ---
On Sat, June 11, 2005 6:46 am, Andy Pieters said:
> I am developing a web interface to patch a program. The user uploads the
> patch and after uncompressing and verification of signature, the update
> should take place. However I do not want users to be able to start an
> update
> and then abort the process by stopping to load the page.
>
> I imagine that by calling a program externally from php that it would be
> possible but there are limitations because of the distribution. The
> systems
> are installed on php+mysql+apache servers but no shell access is granted.
Perhaps it would be best to take PHP out of the picture entirely after the
upload.
For example, upload to a temporary directory, and, as your last PHP step,
use http://php.net/rename to move the uploaded file to a "to_be_installed"
directory.
Then you can have cron job 2 minutes that installs anything it finds in
that directory.
At that point, nothing the user can do can interfere.
That wouldn't necessarily make the operation atomic...
What makes a "patch" atomic?...
You'd be looking at something like subversion for that, I should think...
I don't think even tar -xzf guarantees atomicity, but I dunno.
--
Like Music?
http://l-i-e.com/artists.htm
--- End Message ---
--- Begin Message ---
On 6/10/05, Leila Lappin <[EMAIL PROTECTED]> wrote:
> Have you tried changing the subscription options through the website? I
> think you can do it by just checking the type of list you're interested in
> subscribing.
I don't know about other people, but I've had lots of problems trying
to subscribe through the web site - I never got the confirmation
emails and in the end I just subscribed via email using
php-general-subscribe.
--
Rogue Tory
http://www.roguetory.org.uk
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--- Begin Message ---
Hi,
this depends on which connection-function you've used. If you've decided
to use pg_pconnect(), there is just one connection.
If you use pg_connect, everytime a new connection is established (and
after finishing the script, it's closed though)
HTH
Christian
hi all,
i have my web site working something like this: in every php script i have require(auth.php). this auth.php has my connection to my postgresql server and database along with some other stuff i need for the user to be authenticated to my web site. when i log on, this auth.php connects to the dbserver and checks if my username and password are stored and then i go to a home page. my connection is stored in $dbh.
what happens when i start moving through all these web pages (php scripts), each requires auth.php, with respect to the connection? is a new connection established for every web page i go into that uses my $dbh for querying purposes or is it the same connection i originally made when i first logged into the web site?
any info will be highly appreciated!!
thanx.
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--- Begin Message ---
Hi,
I've looked at php.net but could not find info regarding if/when are
we going to have further 5.0.x versions and what will change in php
5.1.
Any pointers (besides the php-devel) ?
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--- Begin Message ---
fwrite failed for "quota disc exceeded", so I end up with empty file.
the algorithm is something like :
if (! $fp = @fopen($config['pagecachedir'].$path.$tmp_value,'wb')) {
$errorLog .= "Writing problem for ".$config['pagecachedir'].
"$path$tmp_value!\n";
} else {
$txt_length = strlen($txt);
if (@fwrite($fp,$txt,$txt_length) != $txt_length) {
$errorLog .= "Writing problem in file !\n";
@fclose($fp);
@unlink($config['pagecachedir'].$path.$tmp_value);
} else {
//everything is OK
@fclose($fp);
}
On 6/11/05, Richard Lynch <[EMAIL PROTECTED]> wrote:
>
> You would probably have to fclose it before you can unlink it, and if it's
> fargled enough that fwrite failed, you probably can't fclose it
> successfully...
>
> Your best bet would be to put the filename into a database table, then run
> a cron job that deletes all the files in that table, and only takes them
> out of the table if they are successfully deleted.
>
> Course, you then want to be sure you have UNIQUE filenames so you don't
> delete a good file later.
>
>
>
> On Fri, June 10, 2005 4:03 pm, Mister Jack said:
> > Hi,
> >
> > I having a problem at the moment, I open a file, try to write in it,
> > and then remove the file if the write goes wrong (if write count != of
> > my initial buffer length). But I still get some empty file (and then a
> > blank page). Could possibly fopen (with a 'wb' flag, and under freebsd
> > 4.11) failed but still create that empty file ?
> >
> > Where could I get more info on the behavior of fopen/fwrite ?
> >
> > Thanks for your help.
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
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> >
> >
>
>
> --
> Like Music?
> http://l-i-e.com/artists.htm
>
>
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