Can't run GPG through php on linux (works fine through telnet)
Andy Freeman
news@symbad.co.uk
Mon May 20 20:58:01 2002
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Hi everyone...
I'm trying to use gpg with php to encrypt a string on a linux server
and decrypt it at the other side using delphi on a NT box.
I've got the decryption working on the NT side,
but can't for the life of me get gpg to run through php.
I don't really understand linux,
and was wondering if anyone could help ?
i figured it was easier to use files for i/o than strings since, again,=20
i don't really understand linux redirects & pipes.
my php code is this :
passthru( " gpg --status-fd 5 5>>$status_file --no-default-keyring =
--keyring $keyring_file --always-trust -r $key_name -o $out_file -e =
$in_file ");
when i run the exec string (with substituted file names, obviously) =
through telnet,
logged in as my user (not root, for what it's worth)
the whole thing works fine, including the creation of the status file.
when i run it through php, the following happens :
1) status file is not created
2) there is no output file created
I believe that the problem is something to do with the user context.
i.e.
In NT, there is a special user (IUSR_blah) which is the userid=20
when web requests are being processed.
I believe that the same is true in linux ("nobody" ?)
Could anyone help me ?
I created a folder (and chmod 777),
and can create and delete files in this folder using my php script,
but gpg is not creating files in this folder.
1) How can i get gpg to return its status output to my php script,
so that i can at least see what errors are being reported.
2) How can i get it to work ? Any ideas ?
Any help would be greatly appreciated.
Kind Regards
Andy Freeman
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<DIV><FONT face=3DArial size=3D2>Hi everyone...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I'm trying to use gpg with php to =
encrypt a string=20
on a linux server<BR>and decrypt it at the other side using delphi on a =
NT=20
box.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I've got the decryption working on the =
NT=20
side,<BR>but can't for the life of me get gpg to run through =
php.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I don't really understand linux,<BR>and =
was=20
wondering if anyone could help ?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>i figured it was easier to use files =
for i/o than=20
strings since, again, <BR>i don't really understand linux redirects =
&=20
pipes.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>my php code is this :</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>passthru( " gpg --status-fd 5 =
5>>$status_file=20
--no-default-keyring --keyring $keyring_file --always-trust -r $key_name =
-o=20
$out_file -e $in_file ");</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV><FONT face=3DArial =
size=3D2>
<DIV><BR>when i run the exec string (with substituted file names, =
obviously)=20
through telnet,<BR>logged in as my user (not root, for what it's =
worth)<BR>the=20
whole thing works fine, including the creation of the status file.</DIV>
<DIV> </DIV>
<DIV>when i run it through php, the following happens :</DIV>
<DIV> </DIV>
<DIV>1) status file is not created<BR>2) there is no output file =
created</DIV>
<DIV> </DIV>
<DIV>I believe that the problem is something to do with the user =
context.</DIV>
<DIV> </DIV>
<DIV>i.e.<BR>In NT, there is a special user (IUSR_blah) which is the =
userid=20
<BR>when web requests are being processed.</DIV>
<DIV> </DIV>
<DIV>I believe that the same is true in linux ("nobody" ?)</DIV>
<DIV> </DIV>
<DIV>Could anyone help me ?</DIV>
<DIV> </DIV>
<DIV>I created a folder (and chmod 777),<BR>and can create and delete =
files in=20
this folder using my php script,<BR>but gpg is not creating files in =
this=20
folder.</DIV>
<DIV> </DIV>
<DIV><BR>1) How can i get gpg to return its status output to my php=20
script,<BR> so that i can at least see what errors are being =
reported.</DIV>
<DIV> </DIV>
<DIV>2) How can i get it to work ? Any ideas ?</DIV>
<DIV> </DIV>
<DIV><BR>Any help would be greatly appreciated.</DIV>
<DIV> </DIV>
<DIV><BR>Kind Regards</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Andy Freeman<BR></FONT></DIV></BODY></HTML>
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