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Date: Thu, 25 Jul 2013 16:42:12 +0200
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To: crankypuss <fullmoon@newsguy.com>
Cc: PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] execute compressed PHP command-line application
From: tyra3l@gmail.com (Ferenc Kovacs)

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On Thu, Jul 18, 2013 at 10:38 AM, crankypuss <fullmoon@newsguy.com> wrote:

> I've been using PHP for linux command-line applications.  Some are quite
> large.  I've built the code to combine the mainline plus everything it
> calls into a single file to avoid portability issues with include
> libraries.  I've built the code to compress the resulting file using
> gzdeflate after optionally stripping comments and excess whitespace.
>
> As a result, I have the uncompressed code in a variable after using
> gzinflate.  Executing it cleanly has become an issue, and I'm looking for=
 a
> solution.  I see the following possible solutions:
>
> 1. Build the mainline as a function, write the decompressed code to a tem=
p
> file, include the temp file, delete the temp file, then invoke the mainli=
ne
> function.  This works reasonably well with the exception that magic
> constants like __FILE__ are set during the parsing of the include file.
>  The result is that for example __FILE__ contains the name of the temp
> file, which causes results other than the original.  I know of no way to
> change __FILE__ once it has been set, and if the application relaunches
> using __FILE__ it is attempting to invoke the now-missing temp file.
>
> 2. Build the mainline as it was originally coded, write the decompressed
> code to a temp file, include the temp file.  The problem with this approa=
ch
> is that if the application issues an exit() the temp file will be left
> laying around.  Additional issues may exist but this one is imo a
> show-stopper.
>
> 3. Pass the decompressed code to eval().  This approach is rather a joke
> due to the well-intentioned efforts of whoever chose to consider eval() a
> security exposure and modified echo to tell the user it is eval'ed code.
>
> Approach (1) seems the most promising but using it will require that the
> target applications be specially coded with regard to __FILE__ and possib=
ly
> other magic constants.  I really don't want to place special requirements
> on the coding of the target application.
>
> Suggestions would be appreciated, as I don't want to have to modify the
> interpreter at this point.  Thanks in advance.
>
>
> --
> PHP Internals - PHP Runtime Development Mailing List
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>
> check out http://us1.php.net/phar and
http://www.php.net/manual/en/wrappers.phar.php
currently this is the preferred method for shipping an application in a
single file, as it is allows you to work those files and directories in the
phar via most php functions as those would be normal files/directories on
the disk so stuff like __LINE__ would point a valid path.

for 2, you could use shutdown functions, but with phar:// you wouldn't need
to extract the files, hence no need for the cleanup.

ps: beware, if you try to pass these paths to external libs/application,
they won't be able to work with the phar:// files of course.

--=20
Ferenc Kov=C3=A1cs
@Tyr43l - http://tyrael.hu

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