make it possible to run occ as root

[karlitschek]

make it possible to run as root

To do

• Start non privileged child process
• Handle exit codes
• Handle STDIN/STDOUT/STDERR streams

[karlitschek]

@CarlSchwan @PVince81 @nickvergessen @AndyScherzinger

[ChristophWurst]

Finding the right user is doable from config.php ownership guessing.

The tricky part is STDIN/STDOUT/STDERR handling. Neither with shell_exec nor proc_open I was able to connect the parent process pipes with the child process. shell_exec makes the parent block when occ asks for input (e.g. when you make a typo or when it needs confirmation).

I've pushed some fixes that make this work on a non-Debian system too.

[susnux]

@ChristophWurst I pushed a commit which should resolve this.
Basically lets do it like every other program on Linux and just use setuid and setgid to make the current process owned by the config.php user.

Also there is no need for a fallback, because if there is no fileowner of the config, then console.php will fail because it checks that the current user is the fileowner...

[ChristophWurst]

Tested and works. Very nice solution, @susnux 👏

[nickvergessen]

Files belong to my own user. Works fine here with:

• php occ
• sudo php occ
• sudo -u nickvergessen php occ

So sounds good to me

[nickvergessen]

I will then squash it and we can merge + backport it, looks straight forward enough :-O

[nickvergessen]

/backport to stable31

[nickvergessen]

/backport to stable30

[karlitschek]

Wohoooo. Feeling like a community contributor now 😀

[karlitschek]

Ok. Nothing of my code is left. Bit still cool 😎