* added issue_relations branch

* issue_relation model added

git-svn-id: http://redmine.rubyforge.org/svn/branches/work@162 e93f8b46-1217-0410-a6f0-8f06a7374b81

issue_relations/app/controllers/application.rb

@@ -0,0 +1,132 @@
+# redMine - project management software
+# Copyright (C) 2006  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class ApplicationController < ActionController::Base
+  before_filter :check_if_login_required, :set_localization
+  
+  def logged_in_user=(user)
+    @logged_in_user = user
+    session[:user_id] = (user ? user.id : nil)
+  end
+  
+  def logged_in_user
+    if session[:user_id]
+      @logged_in_user ||= User.find(session[:user_id])
+    else
+      nil
+    end
+  end
+  
+  # check if login is globally required to access the application
+  def check_if_login_required
+    require_login if $RDM_LOGIN_REQUIRED
+  end 
+  
+  def set_localization
+    lang = begin
+      if self.logged_in_user and self.logged_in_user.language and !self.logged_in_user.language.empty? and GLoc.valid_languages.include? self.logged_in_user.language.to_sym
+        self.logged_in_user.language
+      elsif request.env['HTTP_ACCEPT_LANGUAGE']
+        accept_lang = parse_qvalues(request.env['HTTP_ACCEPT_LANGUAGE']).first.split('-').first
+        if accept_lang and !accept_lang.empty? and GLoc.valid_languages.include? accept_lang.to_sym
+          accept_lang
+        end
+      end
+    rescue
+      nil
+    end || $RDM_DEFAULT_LANG
+    set_language_if_valid(lang)    
+  end
+  
+  def require_login
+    unless self.logged_in_user
+      store_location
+      redirect_to :controller => "account", :action => "login"
+      return false
+    end
+    true
+  end
+
+  def require_admin
+    return unless require_login
+    unless self.logged_in_user.admin?
+      render :nothing => true, :status => 403
+      return false
+    end
+    true
+  end
+
+  # authorizes the user for the requested action.
+  def authorize(ctrl = params[:controller], action = params[:action])
+    # check if action is allowed on public projects
+    if @project.is_public? and Permission.allowed_to_public "%s/%s" % [ ctrl, action ]
+      return true
+    end    
+    # if action is not public, force login
+    return unless require_login    
+    # admin is always authorized
+    return true if self.logged_in_user.admin?
+    # if not admin, check membership permission    
+    @user_membership ||= Member.find(:first, :conditions => ["user_id=? and project_id=?", self.logged_in_user.id, @project.id])    
+    if @user_membership and Permission.allowed_to_role( "%s/%s" % [ ctrl, action ], @user_membership.role_id )    
+      return true		
+    end		
+    render :nothing => true, :status => 403
+    false
+  end
+
+  # store current uri in session.
+  # return to this location by calling redirect_back_or_default
+  def store_location
+    session[:return_to] = request.request_uri
+  end
+
+  # move to the last store_location call or to the passed default one
+  def redirect_back_or_default(default)
+    if session[:return_to].nil?
+      redirect_to default
+    else
+      redirect_to_url session[:return_to]
+      session[:return_to] = nil
+    end
+  end
+  
+  def render_404
+    @html_title = "404"
+    render :template => "common/404", :layout => true, :status => 404
+    return false
+  end
+
+  # qvalues http header parser
+  # code taken from webrick
+  def parse_qvalues(value)
+    tmp = []
+    if value
+      parts = value.split(/,\s*/)
+      parts.each {|part|
+        if m = %r{^([^\s,]+?)(?:;\s*q=(\d+(?:\.\d+)?))?$}.match(part)
+          val = m[1]
+          q = (m[2] or 1).to_f
+          tmp.push([val, q])
+        end
+      }
+      tmp = tmp.sort_by{|val, q| -q}
+      tmp.collect!{|val, q| val}
+    end
+    return tmp
+  end
+end