users_controller.rb

class UsersController < ApplicationController

  before_filter :find_user, :only => [:suspend, :unsuspend, :destroy, :purge]
  before_filter :login_required, :except => [:new, :create, :activate, :change_password, :forgot_password, :reset_password]
  before_filter :authorize, :except => [:new, :create, :activate, :change_password, :forgot_password, :reset_password]

  def index
    @users = User.find(:all)

    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @messages }
    end
  end

  def force_activate
    @user = User.force_activate_now(params[:id])

    respond_to do |format|
      format.html { redirect_to users_path }
      format.xml  { head :ok }
    end
  end

  def show
    @user = User.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @message }
    end
  end

  def edit
    @user = User.find(params[:id])
  end

  def update
    @user = User.find(params[:id])

    respond_to do |format|
      if @user.update_attributes(params[:user])
        flash[:notice] = 'User was successfully updated.'
        format.html { redirect_to users_path }
        format.xml  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @user.errors, :status => :unprocessable_entity }
      end
    end
  end

  def destroy
    @user = User.find(params[:id])
    @user.destroy

    respond_to do |format|
      format.html { redirect_to users_path }
      format.xml  { head :ok }
    end
  end

  def new
    @user = User.new

    respond_to do |format|
      format.html # new.html.erb
      format.xml  { render :xml => @message }
    end
  end

  def create
    logout_keeping_session!
    @user = User.new(params[:user])

    @user.register! if @user && @user.valid?
    success = @user && @user.valid?

    if success && @user.errors.empty?
      flash[:notice] = "Thanks for signing up!  We're sending you an email with your activation code."
    else
      flash[:error]  = "We couldn't set up that account, sorry.  Please try again, or contact an admin (link is above)."
      render :action => 'new'
    end
  end

  def activate
    logout_keeping_session!
    user = User.find_by_activation_code(params[:activation_code]) unless params[:activation_code].blank?
    case
    when (!params[:activation_code].blank?) && user && !user.active?
      user.activate!
      flash[:notice] = "Signup complete! Please sign in to continue."
      redirect_to '/login'
    when params[:activation_code].blank?
      flash[:error] = "The activation code was missing.  Please follow the URL from your email."
      redirect_back_or_default('/')
    else
      flash[:error]  = "We couldn't find a user with that activation code -- check your email? Or maybe you've already activated -- try signing in."
      redirect_back_or_default('/')
    end
  end

  def suspend
    @user.suspend!
    redirect_to users_path
  end

  def unsuspend
    @user.unsuspend!
    redirect_to users_path
  end

  def purge
    @user.destroy
    redirect_to users_path
  end

  def change_password
    return unless request.post?
    if User.authenticate(current_user.login, params[:old_password])
      if ((params[:password] == params[:password_confirmation]) && !params[:password_confirmation].blank?)
        current_user.password_confirmation = params[:password_confirmation]
        current_user.password = params[:password]

        if current_user.save
          flash[:notice] = "Password was successfully updated."
          redirect_to profile_url(current_user.login)
        else
          flash[:alert] = "Password has not been changed."
        end

      else
        flash[:alert] = "New Password mismatch.."
        @old_password = params[:old_password]
      end
    else
      flash[:alert] = "Your old password is incorrect."
    end
  end

  #gain email address
  def forgot_password
    return unless request.post?
    if @user = User.find_by_email(params[:user][:email])
      @user.forgot_password
      @user.save
      redirect_back_or_default('/')
      flash[:notice] = "A password reset link has been sent to your email address"
    else
      flash[:alert] = "Could not find a user with that email address"
    end
  end

  #reset password
  def reset_password
    @user = User.find_by_password_reset_code(params[:id])
    return if @user unless params[:user]

    if ((params[:user][:password] && params[:user][:password_confirmation]) && !params[:user][:password_confirmation].blank?)
      self.current_user = @user #for the next two lines to work
      current_user.password_confirmation = params[:user][:password_confirmation]
      current_user.password = params[:user][:password]
      @user.reset_password
      flash[:notice] = current_user.save ? "Password reset was successful." : "Password reset has failed."
      redirect_back_or_default('/')
    else
      flash[:alert] = "Password mismatch.."
    end
  end

  protected
  def find_user
    @user = User.find(params[:id])
  end

end