Creating files - file permissions

Primozr

Hi I must be missing something here.

My scripts creates new files on server in directory with full rights (chmod 777)

When a file is created in this DIR it is created with "-rw-r--r--" rights on server. Later I want to edit/overwrite this file but I cant due to unsufficient privileges?!? It can be done if I manualy change file rigths on server with unix's chmod 777.

I also tried to use PHP function chmod($filename, 0777) to change file's permissions before overwriting/editing file, but chmod doesn't work eather... "Warning: chmod(): Operation not permitted in ..."

What could I do here? File is created usign fwrite function...

Thanks

bradgrafelman

Before you even use fopen() to create the new file, try calling [man]umask/man with a mask of 0777.

Primozr

I dont get it exactly... this doesnt work also

umask(0777);
if (!chmod("images/annotated/001_MVC-006F.xml", 0777)) die("error");

BTW I don't use fopen to edit file. I use XML class so I load xml and edit xml object and that re-save as same filename ...

Thanks,
primoz

bradgrafelman

Well, the point is, you have to call the umask() function before PHP saves the file.

If PHP doesn't have rights to edit a previously made file, no PHP function will help. If these .xml files that are already created are CHMOD'd to 777 before PHP opens them, then you should just be able to place the umask() call before the XML parser edits the files.

Primozr

bradgrafelman wrote:
If PHP doesn't have rights to edit a previously made file, no PHP function will help. If these .xml files that are already created are CHMOD'd to 777 before PHP opens them, then you should just be able to place the umask() call before the XML parser edits the files.

these .xml files are not CHMOD'd to 777 when they are created. Script creates them with privilleges as mentioned in my first post. If they would be, I wouldn't have problem to edit files with XML parser...

So your pount is I call umask(0777); before fwrite or umask(0777); before editing file with XML parser?

thanks

bradgrafelman

Just put umask(0777) at the top of your script.

halojoy

these .xml files are not CHMOD'd to 777 when they are created.

you have to put umask(0777);
before they are even created.
at the very beginning

Primozr

Ok I have tried putting umask(0777); in in the script before creating xml file with fwrite. created file now has even less privilagess ie. none:

---------- 1 www-data www-data 2755 2006-07-06 21:21 002_MVC-002F.xml

halojoy

strange!

Myself have never needed to use umask()

If the parent folder (working directory) has got CHMOD 777 permission,
then if creating a directory / file, using fwrite() they will also have 777

Primozr

halojoy wrote:
strange!

Myself have never needed to use umask()

If the parent folder (working directory) has got CHMOD 777 permission,
then if creating a directory / file, using fwrite() they will also have 777

thats what I've also thought, but I guess there's something more to it!
umask also doesn't help, but I'm not sure if I;m using it the right way.

:bemused:

Primozr

I think I figure it out what's the problem.

I can not edit all files with this owner (faat):
rw-r--r-- 1 faat faat 1594 2006-07-04 20:43 Pict-24-05-2002_12-26-37.xml

but files with this owner (www-data) I can edit normaly:
-rw-r--r-- 1 www-data www-data 11552 2006-02-13 18:22 Pict-24-05-2002_12-27-07.xml

Any reasons why would my script create files and assign faat owner not www-data, which suppost to do by default?!

Thanks.

halojoy

Primozr wrote:
I think I figure it out what's the problem.

I can not edit all files with this owner (faat):
rw-r--r-- 1 faat faat 1594 2006-07-04 20:43 Pict-24-05-2002_12-26-37.xml

but files with this owner (www-data) I can edit normaly:
-rw-r--r-- 1 www-data www-data 11552 2006-02-13 18:22 Pict-24-05-2002_12-27-07.xml

Any reasons why would my script create files and assign faat owner not www-data, which suppost to do by default?!

Thanks.

try to find out WHERE in this script the owner is changed ( from normal web user )
A normal visitor at a web server is user: nobody
Any files he is creating will of course be owned and writable by 'nobody'
if only he has Write Permission in working folder.

Find file with this word inside: faat
There has got to be a setting of this user somewhere.

Primozr

halojoy wrote:
try to find out WHERE in this script the owner is changed ( from normal web user )
A normal visitor at a web server is user: nobody
Any files he is creating will of course be owned and writable by 'nobody'
if only he has Write Permission in working folder.

Find file with this word inside: faat
There has got to be a setting of this user somewhere.

i think www-data should be the normal owner from the files created with PHP script? script should be OK as there is nothing special to it.