Start of GS5.

1 files changed, 161 insertions, 0 deletions

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
new file mode 100644
index 0000000..c675f5c
--- /dev/null
+++ b/app/controllers/application_controller.rb
@@ -0,0 +1,161 @@
+class ApplicationController < ActionController::Base
+  
+  protect_from_forgery
+
+  before_filter :set_locale
+
+  before_filter :go_to_setup_if_new_installation
+  before_filter :home_breadcrumb
+  
+  helper_method :current_user
+  
+  helper_method :guess_local_ip_address
+  helper_method :guess_local_host
+  
+  helper_method :'have_https?'
+
+  helper_method :random_pin
+  
+  
+  #TODO Add check_authorization. See
+  # https://github.com/ryanb/cancan
+  # https://github.com/ryanb/cancan/wiki/Ensure-Authorization
+  # and Gemeinschaft 4
+  
+  # Generate a new name for an Object
+  #
+  def generate_a_new_name(parent, child = nil)
+    if child
+      i = parent.send(child.class.name.underscore.pluralize).count
+      loop do
+        i += 1
+        if I18n.t("#{child.class.name.underscore.pluralize}.new_name_scaffold").include?('translation missing')
+          @guess_a_new_name = I18n.t(child.class.name.underscore.pluralize + '.name') + " #{i}"
+        else
+          @guess_a_new_name = I18n.t("#{child.class.name.underscore.pluralize}.new_name_scaffold", :counter => i.to_s)
+        end
+        break unless parent.send(child.class.name.underscore.pluralize).where(:name => "#{@guess_a_new_name}").count > 0
+      end
+    else
+      i = parent.class.count
+      loop do
+        i += 1
+        if I18n.t("#{parent.class.name.underscore.pluralize}.new_name_scaffold").include?('translation missing')
+          @guess_a_new_name = I18n.t(parent.class.name.underscore.pluralize + '.name') + " #{i}"
+        else
+          @guess_a_new_name = I18n.t("#{parent.class.name.underscore.pluralize}.new_name_scaffold", :counter => i.to_s)
+        end
+        break unless parent.class.where(:name => "#{@guess_a_new_name}").count > 0
+      end
+    end
+    return @guess_a_new_name
+  end
+
+  # Generate a new random PIN
+  #
+  def random_pin
+    if MINIMUM_PIN_LENGTH > 0
+      (1..MINIMUM_PIN_LENGTH).map{|i| (0 .. 9).to_a.sample}.join
+    end
+  end
+  
+  # return the IP address (preferred) or hostname at which the
+  # current request arrived
+  def server_host
+    return (
+      request.env['SERVER_ADDR'] ||
+      request.env['SERVER_NAME'] ||
+      request.env['HTTP_HOST']
+    )
+  end
+  
+  def have_https?
+    return Connectivity::port_open?( server_host(), 443 )
+  end
+  
+  
+  def guess_local_ip_address
+    ret = nil
+    begin
+      ipsocket_addr_info = UDPSocket.open {|s| s.connect("255.255.255.254", 1); s.addr(false) }
+      ret = ipsocket_addr_info.last if ipsocket_addr_info
+    rescue
+    end
+    return ret
+  end
+  
+  def guess_local_host
+    ret = guess_local_ip_address()
+    if ! ret
+      begin
+        if request
+          ret = request.env['SERVER_NAME']
+        end
+      rescue
+      end
+    end
+    if ret && [
+      '',
+      'localhost',
+      '127.0.0.1',
+      '0.0.0.0',
+    ].include?(ret)
+      ret = nil
+    end
+    return ret
+  end
+  
+  rescue_from CanCan::AccessDenied do |exception|
+    if @current_user
+      redirect_to root_url, :alert => 'Access denied! Please ask your admin to grant you the necessary rights.'
+    else
+      if Tenant.count == 0 && User.count == 0
+        # This is a brand new system. We need to run a setup first.
+        redirect_to wizards_new_initial_setup_path
+      else
+        # You need to login first.
+        redirect_to log_in_path, :alert => 'Access denied! You need to login first.'
+      end
+    end
+  end
+  
+  private  
+  
+  def current_user  
+    begin
+      @current_user ||= User.find(session[:user_id]) if session[:user_id]
+    rescue ActiveRecord::RecordNotFound
+      session[:user_id] = nil
+    end
+    @current_user
+  end  
+  
+  def go_to_setup_if_new_installation
+    if Rails.env != 'test'
+      if GemeinschaftSetup.all.count == 0
+        redirect_to new_gemeinschaft_setup_path
+      end
+    end
+  end
+  
+  def home_breadcrumb
+    if current_user
+      if current_user && Tenant.find(current_user.current_tenant_id)
+        add_breadcrumb( current_user.current_tenant, tenant_path(current_user.current_tenant) )
+      else
+        add_breadcrumb I18n.t('pages.controller.index.name'), :root_path
+      end
+    end
+  end
+
+  def set_locale
+    if current_user && Language.find(current_user.language_id)
+      I18n.locale = current_user.language.code.downcase
+    else
+      logger.debug "* Accept-Language: #{request.env['HTTP_ACCEPT_LANGUAGE']}"
+      I18n.locale = request.compatible_language_from(Language.all.map{|x| x.code})
+    end
+    logger.debug "* Locale set to '#{I18n.locale}'"
+  end
+  
+end