#!/usr/bin/ruby
## SiteAdder - add some sites, and optionally users from some templates, sloppy 
## Uses Site ADT and driver, and etc standard library.
## Copyleft 2008 adric @ adric . net, Artistic License

require 'Site'
require 'etc'

class SiteAdder < Object

  ## Some Debian specific constants
  @@SITESA = '/etc/apache2/sites-available'
  @@A2CTL = '/usr/sbin/apache2ctl'

  ## don't really want to append to system files directly
  @@pass='pass_patch'
  @@shad='shad_patch'

  ## constructor, perform once per instance setup tasks
  def initialize
    ## get usernames from /etc/passwd, once per run
    @usernames = []
    Etc::passwd do |un| @usernames.push(un.name)  end
  end

  ## check for tmpl, create if needed
  def check_tmpl()
    if not File.exists?('tmpl')
      @template = File.open('tmpl','w')
      ### heredoc 
      @tmpl = <<END_OF_STRING
#username
<VirtualHost aa.bb.cc.dd>
ServerName domain.tld
ServerAlias www.domain.tld *.domain.tld
DocumentRoot /web/sites/username/domain.tld
CustomLog /var/log/apache2/domain.tld-combined.log combined
</VirtualHost>
END_OF_STRING
      @template.write(@tmpl)
      @template.close
      ### can be done much cleaner
    end
  end

  ## do work, was originally just firing off sed
  def add_site(user, domain, ip_port)
    @user,@domain,@ip_port = user,domain,ip_port
    ## if user does not exist, then we'll add it ourselves and make patches for passwd and shadow
    ##   TODO:should probably look up the args order for adduser
    if not @usernames.find { |user| user == @user } 
      p "echo 'bruce:x:1001:33:,,,:/web/sites/bruce:/bin/bash' | sed -e s,bruce,#{@user}, >> @pass"
      p "echo 'bruce:justkidding:13967:0:99999:7:::' | sed -e s,bruce,#{@user} >> @shad"
      ## home folder
      p "mkdir /web/sites/#{@user}"
      ## "virt" file
      p "touch #{@@SITESA}/@user"
    end ## end add user

    ## make a virt block, add it to that users file
    ### FIXME ip_port seems not to be set here? 
    p "sed -e s,domain\.tld,#{@domain}, -e s,username,#{@user}, tmpl >> #{@@SITESA}/#{@user}"
    ## make folder for the domain in the TODO proper octal mode ?
    p "mkdir -p /web/sites/#{@user}/#{@domain}"
    ## chown,chmod it over
    p "chown -R #{@user}:@@WGROUP /web/sites/#{@user}/#{@domain}"
    p "chmod -R 2750 /web/sites/#{@user}/#{@domain}" ##FIXME
    
  end


  if __FILE__ == $0
    ## go!
    check_tmpl
    ### @hash.each_key do |key| do_work(key,@hash[key]) end
  
    @sites_to_add.each { |site| add_site( site.user, site.domain, site.ip ) }

    ## enable the sites and kick apache politely
    # p "a2ensite #{@user}" 
    # p "#{@@A2CTL} graceful"
  end

end