File / Directory access

[RFH Reseller: Sol]

I'm wondering how many off you have faced security lockdown issues when developing sites routines that read/write from the disk.

I have noticed that many third-party controls make calls to unmanaged code, which typically means you can't use them in a shared hosting environment unless they are added to the GAC.

What I'd like to know is what routines / libraries you guys use for File / Directory access in a shared hosting environment. I will be needing the following methods:

Read Directories
Read Filelist
Create Directory
Delete Directory
Create / Write File
Delete File

This should be basic stuff, but it seems like many people have found different ways to do this when building controls.

[RFH Customer: Jon Freeman]

I've opted to use php where I've needed file operations. The only file operation I have needed here so far was one to list midi files in a directory. That was achieved simply in php:

<?
foreach (glob("*.mid") as $filename)
{
//do what you need with $filename
}
?>

I've used other built in php file and directory functions (fopen, fwrite, fclose, chdir, etc. ) elsewhere with success, although I never got unlink (to delete a file) to work there. Fortuantely I was in a situation where I could get away with overwriting the existing file.