I need powerfull EDM : which one ? Urgent !
EDM for electronic document management
In fact I need to make a web file server with powerfull abilities I can explain :
I need that every user could post (save) files without ability to erase tham later. Those should be applied related to a project and a stage. I need features which could make such posts obsolete (without erasing older ones) and which could inform everybody about the upgrade. This means another user could post his way of doing the same thing and it would appear for him as his upgrade and for others as an alternate work until one of them or the admin decides that which is the one (the other only deprecated not deleted).
Those files could be CAD or Office or photos or any but I need to be able to run scripts to make them printable in a clike (a thumbnail or many thumbnails depending on the type and linked to previews... would be created next to the file). I want also to make this through an index to be able to search (so a search engine inside the CMS is needed).
Then I need to make a library of files upgradable that could use another bunch of scripts (I know how to do them) to use them as templates or objects
Not only I do not know which free CMS to use neither have I seen something that already exists that suits my need any where where such systems exist.
I know some PERL, bash, TCL/Tk and C++ of course and how to configure linux with commandline but nothing else regarding this.
I don't know MySQL or Apache at all (really no knowledge) but I will have to use them (and I would like to). My only (old) knowledge is about Dbase 3 on DOS when I was very young at school and ran that for my father.