OpenSSL install requirement check

[Hadamcik]

Q	A
Bug fix?	N
New feature?	Y
Automated tests included?	N
Related user documentation PR URL	N
Related developer documentation PR URL	N
Issues addressed (#s or URLs)	N
BC breaks?	N
Deprecations?	N

Description:

Adds check to installation process - if mcrypt is missing, openssl is checked if it's enabled and working (with access to /dev/random or /dev/urandom)

Steps to test this PR:

1. Test installation with mcrypt without openssl
2. Should work
3. Test installation with mcrypt and with openssl (without access to /dev/random or /dev/urandom)
4. Should work
5. Test installation without mcrypt and with openssl (without access to /dev/random or /dev/urandom)
6. Should now work
7. Test installation without mcrypt and with openssl (with access to /dev/random or /dev/urandom)

[escopecz]

This seems to be working well. If I disable mcrypt on staging I get this error:

But this PR doesn't force me to install mcrypt which is a good thing. I'm not quite sure how to easily test the scenario "With mcrypt and without openssl" since openssl must be compiled with php itself. Don't want to mess with my setup that much that I reinstall php.

I'm not quite sure how to configure open_basedir to test /dev/random. With all my configuration tests it doesn't load the installation page at all.

But anyway, this is working for the tests I was able to do. 👍

[daikiejp]

When this update will release? I got same problem and message....

[Maxell92]

Works for me.