CODEWITHSUNDEEP
linuxphp
cachance7
cachance7

Reputation: 943

php5-fpm can't open file for reading

I'm trying to get my php cgi processes to read from a file on my filesystem. Both the file and parent folder have all rwx permissions allowed and the file has the same owner and group id as the php processes, www-data.

No matter how I try to open the file (read(), file_get_contents(), stream_get_contents()) I always get the same error: failed to open stream: Permission denied

I have no problem opening the file in the php interactive session, using cat on the command line, or with python.

What is going on?

Upvotes: 1

Views: 993

Answers (2)

cachance7
cachance7

Reputation: 943

It turns out this file was under a FUSE filesystem which had not been mounted with the allow_other option.

Upvotes: 0

Joe
Joe

Reputation: 36

I've seen this problem before on Linux systems with SELinux enabled. The httpd process is typically given its own security context that only allows certain files to be accessed.

You can check to see if SELinux is enabled by running ls --scontext on the file and on the php script. If the two files have the same context or if ls complains about the argument then SELinux is probably not the cause of the problem.

Assuming SELinux is the cause of problem then you could try setting the file in question to have the same security context as your php script with the chcon command. For example:

chcon --reference=/var/www/html/page.php /data/filetoread

where /var/www/html/page.php is your php script and /data/filetoread is the file that you want to access.

Upvotes: 1

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