Redmine

    Redmine::Gravatars.rescan

      default = Redmine::Gravatar.gravatar(Setting.gravatar_default)

      options.merge!({:ssl => (defined?(request) && request.ssl?), :default => default})

  def options_for_gravatar_default

    Redmine::Gravatars.gravatars

  end

<p><%= setting_select :gravatar_default, options_for_gravatar_default, :blank => :label_none %></p>

# redMine - project management software

# Copyright (C) 2006-2011  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.

module Redmine

  module Gravatars

    WELL_KNOWN_GRAVATARS = [["Wavatars", 'wavatar'], ["Identicons", 'identicon'], ["Monster ids", 'monsterid'], ["Retro", "retro"]]

    # Return an array of installed gravatars

    def self.gravatars

      @@installed_gravatars ||= scan_gravatars

    end

    # Rescan gravatars directory

    def self.rescan

      @@installed_gravatars = scan_gravatars

    end

    # Return gravatar for given id, or nil if it's not found

    def self.gravatar(id, options = {})

      return nil if id.blank?

      found = gravatars.find {|g| g.id == id}

      if found.nil? && options[:rescan] != false

        rescan

        found = gravatar(id, :rescan => false)

      end

      found

    end

    # Class used to represent a gravatar

    class Gravatar

      include Comparable

      def initialize(value)

        @value = value

      end

      def label

        value

      end

      def id

        value

      end

      def <=>(g)

        if Gravatar === g

          self.id <=> g.id

        else

          nil

        end

      end

      def to_api_option

        "#{Setting.protocol}://#{Setting.host_name}/gravatars/#{value}"

      end

      private

      attr_reader :value

    end

    class WellKnownGravatar < Gravatar

      def initialize(label, value)

        @label = label

        super(value)

      end

      attr_reader :label

      def to_api_option

        value

      end

    end

    private

    def self.scan_gravatars

      found = Dir.glob("#{Rails.public_path}/gravatars/*").select{|f|

        File.readable?(f)

      }.map{|f|

        Gravatar.new(File.basename(f))

      }

      WELL_KNOWN_GRAVATARS.map{|label, value|

        WellKnownGravatar.new(label, value)

      } + found

    end

  end

end

/*

!/.gitignore

# Redmine - project management software

# Copyright (C) 2006-2010  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.

require File.expand_path('../../../../test_helper', __FILE__)

class Redmine::GravatarsTest < ActiveSupport::TestCase

  def setup

    Redmine::Gravatars.rescan

  end

  def test_gravatars

    gravatars = Redmine::Gravatars.gravatars

    assert_kind_of Array, gravatars

    gravatars.each do |gravatar|

      assert_kind_of Redmine::Gravatars::Gravatar, gravatar

    end

  end

  def test_rescan

    Redmine::Gravatars.gravatars.pop

    assert_difference 'Redmine::Gravatars.gravatars.size' do

      Redmine::Gravatars.rescan

    end

  end

  def test_gravatar_loaded

    gravatar = Redmine::Gravatars.gravatars.last

    assert_equal gravatar, Redmine::Gravatars.gravatar(gravatar.id)

  end

  def test_gravatar_loaded_without_rescan

    gravatar = Redmine::Gravatars.gravatars.last

    assert_equal gravatar, Redmine::Gravatars.gravatar(gravatar.id, :rescan => false)

  end

  def test_gravatar_not_loaded

    gravatar = Redmine::Gravatars.gravatars.pop

    assert_equal gravatar, Redmine::Gravatars.gravatar(gravatar.id)

  end

  def test_gravatar_not_loaded_without_rescan

    gravatar = Redmine::Gravatars.gravatars.pop

    assert_nil Redmine::Gravatars.gravatar(gravatar.id, :rescan => false)

  end

end