jro_apps/redmine Commit - r3588:0d938dff59df

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# redMine - project management software

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# redMine - project management software

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#

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#

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# This program is free software; you can redistribute it and/or

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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# of the License, or (at your option) any later version.

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#

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#

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# This program is distributed in the hope that it will be useful,

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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# GNU General Public License for more details.

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# GNU General Public License for more details.

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#

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#

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# You should have received a copy of the GNU General Public License

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

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require 'uri'

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require 'uri'

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require 'cgi'

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require 'cgi'

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class ApplicationController < ActionController::Base

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class ApplicationController < ActionController::Base

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include Redmine::I18n

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include Redmine::I18n

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layout 'base'

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layout 'base'

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exempt_from_layout 'builder'

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exempt_from_layout 'builder'

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# Remove broken cookie after upgrade from 0.8.x (#4292)

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# Remove broken cookie after upgrade from 0.8.x (#4292)

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# See https://rails.lighthouseapp.com/projects/8994/tickets/3360

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# See https://rails.lighthouseapp.com/projects/8994/tickets/3360

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# TODO: remove it when Rails is fixed

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# TODO: remove it when Rails is fixed

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before_filter :delete_broken_cookies

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before_filter :delete_broken_cookies

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def delete_broken_cookies

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def delete_broken_cookies

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if cookies['_redmine_session'] && cookies['_redmine_session'] !~ /--/

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if cookies['_redmine_session'] && cookies['_redmine_session'] !~ /--/

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cookies.delete '_redmine_session'

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cookies.delete '_redmine_session'

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redirect_to home_path

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redirect_to home_path

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return false

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return false

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end

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end

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end

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end

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before_filter :user_setup, :check_if_login_required, :set_localization

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before_filter :user_setup, :check_if_login_required, :set_localization

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filter_parameter_logging :password

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filter_parameter_logging :password

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protect_from_forgery

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protect_from_forgery

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rescue_from ActionController::InvalidAuthenticityToken, :with => :invalid_authenticity_token

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rescue_from ActionController::InvalidAuthenticityToken, :with => :invalid_authenticity_token

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include Redmine::Search::Controller

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include Redmine::Search::Controller

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include Redmine::MenuManager::MenuController

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include Redmine::MenuManager::MenuController

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helper Redmine::MenuManager::MenuHelper

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helper Redmine::MenuManager::MenuHelper

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Redmine::Scm::Base.all.each do |scm|

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Redmine::Scm::Base.all.each do |scm|

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require_dependency "repository/#{scm.underscore}"

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require_dependency "repository/#{scm.underscore}"

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end

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end

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def user_setup

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def user_setup

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# Check the settings cache for each request

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# Check the settings cache for each request

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Setting.check_cache

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Setting.check_cache

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# Find the current user

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# Find the current user

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User.current = find_current_user

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User.current = find_current_user

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end

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end

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# Returns the current user or nil if no user is logged in

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# Returns the current user or nil if no user is logged in

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# and starts a session if needed

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# and starts a session if needed

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def find_current_user

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def find_current_user

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if session[:user_id]

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if session[:user_id]

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# existing session

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# existing session

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(User.active.find(session[:user_id]) rescue nil)

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(User.active.find(session[:user_id]) rescue nil)

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elsif cookies[:autologin] && Setting.autologin?

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elsif cookies[:autologin] && Setting.autologin?

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# auto-login feature starts a new session

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# auto-login feature starts a new session

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user = User.try_to_autologin(cookies[:autologin])

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user = User.try_to_autologin(cookies[:autologin])

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session[:user_id] = user.id if user

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session[:user_id] = user.id if user

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user

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user

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elsif params[:format] == 'atom' && params[:key] && accept_key_auth_actions.include?(params[:action])

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elsif params[:format] == 'atom' && params[:key] && accept_key_auth_actions.include?(params[:action])

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# RSS key authentication does not start a session

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# RSS key authentication does not start a session

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User.find_by_rss_key(params[:key])

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User.find_by_rss_key(params[:key])

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elsif Setting.rest_api_enabled? && ['xml', 'json'].include?(params[:format])

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elsif Setting.rest_api_enabled? && ['xml', 'json'].include?(params[:format])

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if params[:key].present? && accept_key_auth_actions.include?(params[:action])

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if params[:key].present? && accept_key_auth_actions.include?(params[:action])

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# Use API key

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# Use API key

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User.find_by_api_key(params[:key])

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User.find_by_api_key(params[:key])

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else

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else

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# HTTP Basic, either username/password or API key/random

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# HTTP Basic, either username/password or API key/random

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authenticate_with_http_basic do |username, password|

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authenticate_with_http_basic do |username, password|

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User.try_to_login(username, password) || User.find_by_api_key(username)

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User.try_to_login(username, password) || User.find_by_api_key(username)

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end

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end

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end

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end

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end

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end

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end

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end

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# Sets the logged in user

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# Sets the logged in user

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def logged_user=(user)

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def logged_user=(user)

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reset_session

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reset_session

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if user && user.is_a?(User)

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if user && user.is_a?(User)

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User.current = user

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User.current = user

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session[:user_id] = user.id

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session[:user_id] = user.id

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else

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else

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User.current = User.anonymous

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User.current = User.anonymous

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end

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end

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end

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end

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# check if login is globally required to access the application

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# check if login is globally required to access the application

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def check_if_login_required

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def check_if_login_required

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# no check needed if user is already logged in

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# no check needed if user is already logged in

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return true if User.current.logged?

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return true if User.current.logged?

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require_login if Setting.login_required?

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require_login if Setting.login_required?

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end

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end

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def set_localization

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def set_localization

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lang = nil

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lang = nil

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if User.current.logged?

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if User.current.logged?

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lang = find_language(User.current.language)

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lang = find_language(User.current.language)

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end

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end

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if lang.nil? && request.env['HTTP_ACCEPT_LANGUAGE']

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if lang.nil? && request.env['HTTP_ACCEPT_LANGUAGE']

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accept_lang = parse_qvalues(request.env['HTTP_ACCEPT_LANGUAGE']).first.~~downcase~~

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accept_lang = parse_qvalues(request.env['HTTP_ACCEPT_LANGUAGE']).first

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if !accept_lang.blank?

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if !accept_lang.blank?

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accept_lang = accept_lang.downcase

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lang = find_language(accept_lang) || find_language(accept_lang.split('-').first)

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lang = find_language(accept_lang) || find_language(accept_lang.split('-').first)

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end

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end

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end

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end

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lang ||= Setting.default_language

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lang ||= Setting.default_language

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set_language_if_valid(lang)

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set_language_if_valid(lang)

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end

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end

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def require_login

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def require_login

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if !User.current.logged?

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if !User.current.logged?

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# Extract only the basic url parameters on non-GET requests

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# Extract only the basic url parameters on non-GET requests

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if request.get?

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if request.get?

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url = url_for(params)

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url = url_for(params)

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else

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else

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url = url_for(:controller => params[:controller], :action => params[:action], :id => params[:id], :project_id => params[:project_id])

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url = url_for(:controller => params[:controller], :action => params[:action], :id => params[:id], :project_id => params[:project_id])

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end

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end

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respond_to do |format|

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respond_to do |format|

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format.html { redirect_to :controller => "account", :action => "login", :back_url => url }

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format.html { redirect_to :controller => "account", :action => "login", :back_url => url }

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format.atom { redirect_to :controller => "account", :action => "login", :back_url => url }

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format.atom { redirect_to :controller => "account", :action => "login", :back_url => url }

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format.xml { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }

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format.xml { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }

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format.json { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }

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format.json { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }

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end

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end

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return false

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return false

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end

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end

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true

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true

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end

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end

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def require_admin

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def require_admin

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return unless require_login

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return unless require_login

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if !User.current.admin?

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if !User.current.admin?

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render_403

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render_403

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return false

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return false

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end

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end

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true

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true

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end

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end

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def deny_access

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def deny_access

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User.current.logged? ? render_403 : require_login

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User.current.logged? ? render_403 : require_login

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end

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end

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# Authorize the user for the requested action

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# Authorize the user for the requested action

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def authorize(ctrl = params[:controller], action = params[:action], global = false)

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def authorize(ctrl = params[:controller], action = params[:action], global = false)

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allowed = User.current.allowed_to?({:controller => ctrl, :action => action}, @project, :global => global)

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allowed = User.current.allowed_to?({:controller => ctrl, :action => action}, @project, :global => global)

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allowed ? true : deny_access

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allowed ? true : deny_access

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end

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end

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# Authorize the user for the requested action outside a project

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# Authorize the user for the requested action outside a project

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def authorize_global(ctrl = params[:controller], action = params[:action], global = true)

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def authorize_global(ctrl = params[:controller], action = params[:action], global = true)

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authorize(ctrl, action, global)

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authorize(ctrl, action, global)

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end

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end

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# Find project of id params[:id]

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# Find project of id params[:id]

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def find_project

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def find_project

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@project = Project.find(params[:id])

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@project = Project.find(params[:id])

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rescue ActiveRecord::RecordNotFound

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rescue ActiveRecord::RecordNotFound

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render_404

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render_404

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end

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end

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# Finds and sets @project based on @object.project

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# Finds and sets @project based on @object.project

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def find_project_from_association

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def find_project_from_association

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render_404 unless @object.present?

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render_404 unless @object.present?

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@project = @object.project

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@project = @object.project

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rescue ActiveRecord::RecordNotFound

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rescue ActiveRecord::RecordNotFound

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render_404

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render_404

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end

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end

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def find_model_object

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def find_model_object

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model = self.class.read_inheritable_attribute('model_object')

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model = self.class.read_inheritable_attribute('model_object')

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if model

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if model

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@object = model.find(params[:id])

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@object = model.find(params[:id])

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self.instance_variable_set('@' + controller_name.singularize, @object) if @object

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self.instance_variable_set('@' + controller_name.singularize, @object) if @object

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end

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end

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rescue ActiveRecord::RecordNotFound

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rescue ActiveRecord::RecordNotFound

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render_404

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render_404

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end

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end

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def self.model_object(model)

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def self.model_object(model)

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write_inheritable_attribute('model_object', model)

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write_inheritable_attribute('model_object', model)

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end

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end

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# make sure that the user is a member of the project (or admin) if project is private

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# make sure that the user is a member of the project (or admin) if project is private

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# used as a before_filter for actions that do not require any particular permission on the project

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# used as a before_filter for actions that do not require any particular permission on the project

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def check_project_privacy

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def check_project_privacy

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if @project && @project.active?

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if @project && @project.active?

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if @project.is_public? || User.current.member_of?(@project) || User.current.admin?

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if @project.is_public? || User.current.member_of?(@project) || User.current.admin?

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true

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true

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else

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else

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User.current.logged? ? render_403 : require_login

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User.current.logged? ? render_403 : require_login

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end

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end

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else

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else

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@project = nil

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@project = nil

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render_404

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render_404

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false

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false

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end

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end

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end

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end

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def redirect_back_or_default(default)

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def redirect_back_or_default(default)

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back_url = CGI.unescape(params[:back_url].to_s)

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back_url = CGI.unescape(params[:back_url].to_s)

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if !back_url.blank?

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if !back_url.blank?

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begin

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begin

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uri = URI.parse(back_url)

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uri = URI.parse(back_url)

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# do not redirect user to another host or to the login or register page

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# do not redirect user to another host or to the login or register page

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if (uri.relative? || (uri.host == request.host)) && !uri.path.match(%r{/(login|account/register)})

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if (uri.relative? || (uri.host == request.host)) && !uri.path.match(%r{/(login|account/register)})

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redirect_to(back_url)

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redirect_to(back_url)

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return

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return

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end

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end

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rescue URI::InvalidURIError

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rescue URI::InvalidURIError

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# redirect to default

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# redirect to default

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end

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end

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end

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end

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redirect_to default

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redirect_to default

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end

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end

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def render_403

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def render_403

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@project = nil

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@project = nil

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respond_to do |format|

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respond_to do |format|

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format.html { render :template => "common/403", :layout => (request.xhr? ? false : 'base'), :status => 403 }

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format.html { render :template => "common/403", :layout => (request.xhr? ? false : 'base'), :status => 403 }

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format.atom { head 403 }

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format.atom { head 403 }

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format.xml { head 403 }

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format.xml { head 403 }

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format.json { head 403 }

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format.json { head 403 }

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end

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end

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return false

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return false

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end

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end

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def render_404

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def render_404

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respond_to do |format|

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respond_to do |format|

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format.html { render :template => "common/404", :layout => !request.xhr?, :status => 404 }

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format.html { render :template => "common/404", :layout => !request.xhr?, :status => 404 }

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format.atom { head 404 }

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format.atom { head 404 }

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format.xml { head 404 }

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format.xml { head 404 }

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format.json { head 404 }

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format.json { head 404 }

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end

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end

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return false

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return false

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end

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end

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def render_error(msg)

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def render_error(msg)

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respond_to do |format|

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respond_to do |format|

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format.html {

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format.html {

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flash.now[:error] = msg

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flash.now[:error] = msg

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render :text => '', :layout => !request.xhr?, :status => 500

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render :text => '', :layout => !request.xhr?, :status => 500

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}

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}

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format.atom { head 500 }

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format.atom { head 500 }

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format.xml { head 500 }

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format.xml { head 500 }

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format.json { head 500 }

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format.json { head 500 }

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end

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end

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end

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end

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def invalid_authenticity_token

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def invalid_authenticity_token

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if api_request?

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if api_request?

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logger.error "Form authenticity token is missing or is invalid. API calls must include a proper Content-type header (text/xml or text/json)."

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logger.error "Form authenticity token is missing or is invalid. API calls must include a proper Content-type header (text/xml or text/json)."

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end

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end

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render_error "Invalid form authenticity token."

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render_error "Invalid form authenticity token."

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end

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end

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def render_feed(items, options={})

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def render_feed(items, options={})

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@items = items || []

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@items = items || []

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@items.sort! {|x,y| y.event_datetime <=> x.event_datetime }

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@items.sort! {|x,y| y.event_datetime <=> x.event_datetime }

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@items = @items.slice(0, Setting.feeds_limit.to_i)

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@items = @items.slice(0, Setting.feeds_limit.to_i)

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@title = options[:title] || Setting.app_title

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@title = options[:title] || Setting.app_title

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render :template => "common/feed.atom.rxml", :layout => false, :content_type => 'application/atom+xml'

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render :template => "common/feed.atom.rxml", :layout => false, :content_type => 'application/atom+xml'

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end

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end

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def self.accept_key_auth(*actions)

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def self.accept_key_auth(*actions)

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actions = actions.flatten.map(&:to_s)

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actions = actions.flatten.map(&:to_s)

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write_inheritable_attribute('accept_key_auth_actions', actions)

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write_inheritable_attribute('accept_key_auth_actions', actions)

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end

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end

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def accept_key_auth_actions

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def accept_key_auth_actions

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self.class.read_inheritable_attribute('accept_key_auth_actions') || []

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self.class.read_inheritable_attribute('accept_key_auth_actions') || []

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end

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end

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# Returns the number of objects that should be displayed

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# Returns the number of objects that should be displayed

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# on the paginated list

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# on the paginated list

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def per_page_option

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def per_page_option

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per_page = nil

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per_page = nil

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if params[:per_page] && Setting.per_page_options_array.include?(params[:per_page].to_s.to_i)

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if params[:per_page] && Setting.per_page_options_array.include?(params[:per_page].to_s.to_i)

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per_page = params[:per_page].to_s.to_i

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per_page = params[:per_page].to_s.to_i

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session[:per_page] = per_page

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session[:per_page] = per_page

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elsif session[:per_page]

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elsif session[:per_page]

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per_page = session[:per_page]

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per_page = session[:per_page]

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else

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else

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per_page = Setting.per_page_options_array.first || 25

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per_page = Setting.per_page_options_array.first || 25

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end

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end

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per_page

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per_page

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end

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end

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# qvalues http header parser

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# qvalues http header parser

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# code taken from webrick

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# code taken from webrick

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def parse_qvalues(value)

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def parse_qvalues(value)

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tmp = []

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tmp = []

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if value

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if value

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parts = value.split(/,\s*/)

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parts = value.split(/,\s*/)

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parts.each {|part|

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parts.each {|part|

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if m = %r{^([^\s,]+?)(?:;\s*q=(\d+(?:\.\d+)?))?$}.match(part)

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if m = %r{^([^\s,]+?)(?:;\s*q=(\d+(?:\.\d+)?))?$}.match(part)

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val = m[1]

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val = m[1]

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q = (m[2] or 1).to_f

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q = (m[2] or 1).to_f

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tmp.push([val, q])

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tmp.push([val, q])

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end

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end

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}

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}

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tmp = tmp.sort_by{|val, q| -q}

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tmp = tmp.sort_by{|val, q| -q}

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tmp.collect!{|val, q| val}

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tmp.collect!{|val, q| val}

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end

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end

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return tmp

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return tmp

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rescue

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rescue

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nil

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nil

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end

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end

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# Returns a string that can be used as filename value in Content-Disposition header

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# Returns a string that can be used as filename value in Content-Disposition header

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def filename_for_content_disposition(name)

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def filename_for_content_disposition(name)

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request.env['HTTP_USER_AGENT'] =~ %r{MSIE} ? ERB::Util.url_encode(name) : name

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request.env['HTTP_USER_AGENT'] =~ %r{MSIE} ? ERB::Util.url_encode(name) : name

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end

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end

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def api_request?

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def api_request?

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%w(xml json).include? params[:format]

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%w(xml json).include? params[:format]

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end

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end

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# Renders a warning flash if obj has unsaved attachments

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# Renders a warning flash if obj has unsaved attachments

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def render_attachment_warning_if_needed(obj)

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def render_attachment_warning_if_needed(obj)

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flash[:warning] = l(:warning_attachments_not_saved, obj.unsaved_attachments.size) if obj.unsaved_attachments.present?

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flash[:warning] = l(:warning_attachments_not_saved, obj.unsaved_attachments.size) if obj.unsaved_attachments.present?

331

end

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end

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# Rescues an invalid query statement. Just in case...

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# Rescues an invalid query statement. Just in case...

334

def query_statement_invalid(exception)

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def query_statement_invalid(exception)

335

logger.error "Query::StatementInvalid: #{exception.message}" if logger

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logger.error "Query::StatementInvalid: #{exception.message}" if logger

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session.delete(:query)

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session.delete(:query)

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sort_clear if respond_to?(:sort_clear)

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sort_clear if respond_to?(:sort_clear)

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render_error "An error occurred while executing the query and has been logged. Please report this error to your Redmine administrator."

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render_error "An error occurred while executing the query and has been logged. Please report this error to your Redmine administrator."

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end

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end

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end

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end

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             # redMine - project management software
             # Copyright (C) 2006-2007  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 'uri'
             require 'cgi'
             class ApplicationController < ActionController::Base
               include Redmine::I18n
               layout 'base'
               exempt_from_layout 'builder'
               # Remove broken cookie after upgrade from 0.8.x (#4292)
               # See https://rails.lighthouseapp.com/projects/8994/tickets/3360
               # TODO: remove it when Rails is fixed
               before_filter :delete_broken_cookies
               def delete_broken_cookies
                 if cookies['_redmine_session'] && cookies['_redmine_session'] !~ /--/
                   cookies.delete '_redmine_session'
                   redirect_to home_path
                   return false
                 end
               end
               before_filter :user_setup, :check_if_login_required, :set_localization
               filter_parameter_logging :password
               protect_from_forgery
               rescue_from ActionController::InvalidAuthenticityToken, :with => :invalid_authenticity_token
               include Redmine::Search::Controller
               include Redmine::MenuManager::MenuController
               helper Redmine::MenuManager::MenuHelper
               Redmine::Scm::Base.all.each do |scm|
                 require_dependency "repository/#{scm.underscore}"
               end
               def user_setup
                 # Check the settings cache for each request
                 Setting.check_cache
                 # Find the current user
                 User.current = find_current_user
               end
               # Returns the current user or nil if no user is logged in
               # and starts a session if needed
               def find_current_user
                 if session[:user_id]
                   # existing session
                   (User.active.find(session[:user_id]) rescue nil)
                 elsif cookies[:autologin] && Setting.autologin?
                   # auto-login feature starts a new session
                   user = User.try_to_autologin(cookies[:autologin])
                   session[:user_id] = user.id if user
                   user
                 elsif params[:format] == 'atom' && params[:key] && accept_key_auth_actions.include?(params[:action])
                   # RSS key authentication does not start a session
                   User.find_by_rss_key(params[:key])
                 elsif Setting.rest_api_enabled? && ['xml', 'json'].include?(params[:format])
                   if params[:key].present? && accept_key_auth_actions.include?(params[:action])
                     # Use API key
                     User.find_by_api_key(params[:key])
                   else
                     # HTTP Basic, either username/password or API key/random
                     authenticate_with_http_basic do |username, password|
                       User.try_to_login(username, password) || User.find_by_api_key(username)
                     end
                   end
                 end
               end
               # Sets the logged in user
               def logged_user=(user)
                 reset_session
                 if user && user.is_a?(User)
                   User.current = user
                   session[:user_id] = user.id
                 else
                   User.current = User.anonymous
                 end
               end
               # check if login is globally required to access the application
               def check_if_login_required
                 # no check needed if user is already logged in
                 return true if User.current.logged?
                 require_login if Setting.login_required?
               end
               def set_localization
                 lang = nil
                 if User.current.logged?
                   lang = find_language(User.current.language)
                 end
                 if lang.nil? && request.env['HTTP_ACCEPT_LANGUAGE']
-                  accept_lang = parse_qvalues(request.env['HTTP_ACCEPT_LANGUAGE']).first.downcase
+                  accept_lang = parse_qvalues(request.env['HTTP_ACCEPT_LANGUAGE']).first
                   if !accept_lang.blank?
+                    accept_lang = accept_lang.downcase
                     lang = find_language(accept_lang) || find_language(accept_lang.split('-').first)
                   end
                 end
                 lang ||= Setting.default_language
                 set_language_if_valid(lang)
               end
               def require_login
                 if !User.current.logged?
                   # Extract only the basic url parameters on non-GET requests
                   if request.get?
                     url = url_for(params)
                   else
                     url = url_for(:controller => params[:controller], :action => params[:action], :id => params[:id], :project_id => params[:project_id])
                   end
                   respond_to do |format|
                     format.html { redirect_to :controller => "account", :action => "login", :back_url => url }
                     format.atom { redirect_to :controller => "account", :action => "login", :back_url => url }
                     format.xml  { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }
                     format.json { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }
                   end
                   return false
                 end
                 true
               end
               def require_admin
                 return unless require_login
                 if !User.current.admin?
                   render_403
                   return false
                 end
                 true
               end
               def deny_access
                 User.current.logged? ? render_403 : require_login
               end
               # Authorize the user for the requested action
               def authorize(ctrl = params[:controller], action = params[:action], global = false)
                 allowed = User.current.allowed_to?({:controller => ctrl, :action => action}, @project, :global => global)
                 allowed ? true : deny_access
               end
               # Authorize the user for the requested action outside a project
               def authorize_global(ctrl = params[:controller], action = params[:action], global = true)
                 authorize(ctrl, action, global)
               end
               # Find project of id params[:id]
               def find_project
                 @project = Project.find(params[:id])
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               # Finds and sets @project based on @object.project
               def find_project_from_association
                 render_404 unless @object.present?
                 @project = @object.project
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               def find_model_object
                 model = self.class.read_inheritable_attribute('model_object')
                 if model
                   @object = model.find(params[:id])
                   self.instance_variable_set('@' + controller_name.singularize, @object) if @object
                 end
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               def self.model_object(model)
                 write_inheritable_attribute('model_object', model)
               end
               # make sure that the user is a member of the project (or admin) if project is private
               # used as a before_filter for actions that do not require any particular permission on the project
               def check_project_privacy
                 if @project && @project.active?
                   if @project.is_public? || User.current.member_of?(@project) || User.current.admin?
                     true
                   else
                     User.current.logged? ? render_403 : require_login
                   end
                 else
                   @project = nil
                   render_404
                   false
                 end
               end
               def redirect_back_or_default(default)
                 back_url = CGI.unescape(params[:back_url].to_s)
                 if !back_url.blank?
                   begin
                     uri = URI.parse(back_url)
                     # do not redirect user to another host or to the login or register page
                     if (uri.relative? || (uri.host == request.host)) && !uri.path.match(%r{/(login|account/register)})
                       redirect_to(back_url)
                       return
                     end
                   rescue URI::InvalidURIError
                     # redirect to default
                   end
                 end
                 redirect_to default
               end
               def render_403
                 @project = nil
                 respond_to do |format|
                   format.html { render :template => "common/403", :layout => (request.xhr? ? false : 'base'), :status => 403 }
                   format.atom { head 403 }
                   format.xml { head 403 }
                   format.json { head 403 }
                 end
                 return false
               end
               def render_404
                 respond_to do |format|
                   format.html { render :template => "common/404", :layout => !request.xhr?, :status => 404 }
                   format.atom { head 404 }
                   format.xml { head 404 }
                   format.json { head 404 }
                 end
                 return false
               end
               def render_error(msg)
                 respond_to do |format|
                   format.html {
                     flash.now[:error] = msg
                     render :text => '', :layout => !request.xhr?, :status => 500
                   }
                   format.atom { head 500 }
                   format.xml { head 500 }
                   format.json { head 500 }
                 end
               end
               def invalid_authenticity_token
                 if api_request?
                   logger.error "Form authenticity token is missing or is invalid. API calls must include a proper Content-type header (text/xml or text/json)."
                 end
                 render_error "Invalid form authenticity token."
               end
               def render_feed(items, options={})
                 @items = items || []
                 @items.sort! {|x,y| y.event_datetime <=> x.event_datetime }
                 @items = @items.slice(0, Setting.feeds_limit.to_i)
                 @title = options[:title] || Setting.app_title
                 render :template => "common/feed.atom.rxml", :layout => false, :content_type => 'application/atom+xml'
               end
               def self.accept_key_auth(*actions)
                 actions = actions.flatten.map(&:to_s)
                 write_inheritable_attribute('accept_key_auth_actions', actions)
               end
               def accept_key_auth_actions
                 self.class.read_inheritable_attribute('accept_key_auth_actions') || []
               end
               # Returns the number of objects that should be displayed
               # on the paginated list
               def per_page_option
                 per_page = nil
                 if params[:per_page] && Setting.per_page_options_array.include?(params[:per_page].to_s.to_i)
                   per_page = params[:per_page].to_s.to_i
                   session[:per_page] = per_page
                 elsif session[:per_page]
                   per_page = session[:per_page]
                 else
                   per_page = Setting.per_page_options_array.first || 25
                 end
                 per_page
               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
               rescue
                 nil
               end
               # Returns a string that can be used as filename value in Content-Disposition header
               def filename_for_content_disposition(name)
                 request.env['HTTP_USER_AGENT'] =~ %r{MSIE} ? ERB::Util.url_encode(name) : name
               end
               def api_request?
                 %w(xml json).include? params[:format]
               end
               # Renders a warning flash if obj has unsaved attachments
               def render_attachment_warning_if_needed(obj)
                 flash[:warning] = l(:warning_attachments_not_saved, obj.unsaved_attachments.size) if obj.unsaved_attachments.present?
               end
               # Rescues an invalid query statement. Just in case...
               def query_statement_invalid(exception)
                 logger.error "Query::StatementInvalid: #{exception.message}" if logger
                 session.delete(:query)
                 sort_clear if respond_to?(:sort_clear)
                 render_error "An error occurred while executing the query and has been logged. Please report this error to your Redmine administrator."
               end
             end