jro_apps/redmine Commit - r15769:6a1865905f38

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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 Unauthorized < Exception; end

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class Unauthorized < Exception; end

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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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include Redmine::Pagination

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include Redmine::Pagination

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include Redmine::Hook::Helper

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include Redmine::Hook::Helper

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include RoutesHelper

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include RoutesHelper

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helper :routes

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helper :routes

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class_attribute :accept_api_auth_actions

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class_attribute :accept_api_auth_actions

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class_attribute :accept_rss_auth_actions

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class_attribute :accept_rss_auth_actions

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class_attribute :model_object

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class_attribute :model_object

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layout 'base'

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layout 'base'

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protect_from_forgery

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protect_from_forgery

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def verify_authenticity_token

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def verify_authenticity_token

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unless api_request?

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unless api_request?

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super

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super

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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 handle_unverified_request

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def handle_unverified_request

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unless api_request?

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unless api_request?

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super

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super

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cookies.delete(autologin_cookie_name)

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cookies.delete(autologin_cookie_name)

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self.logged_user = nil

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self.logged_user = nil

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set_localization

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set_localization

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render_error :status => 422, :message => "Invalid form authenticity token."

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render_error :status => 422, :message => "Invalid form authenticity token."

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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_action :session_expiration, :user_setup, :check_if_login_required, :set_localization, :check_password_change

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before_action :session_expiration, :user_setup, :check_if_login_required, :set_localization, :check_password_change

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rescue_from ::Unauthorized, :with => :deny_access

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rescue_from ::Unauthorized, :with => :deny_access

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rescue_from ::ActionView::MissingTemplate, :with => :missing_template

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rescue_from ::ActionView::MissingTemplate, :with => :missing_template

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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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include Redmine::SudoMode::Controller

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include Redmine::SudoMode::Controller

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def session_expiration

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def session_expiration

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if session[:user_id] && Rails.application.config.redmine_verify_sessions != false

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if session[:user_id] && Rails.application.config.redmine_verify_sessions != false

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if session_expired? && !try_to_autologin

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if session_expired? && !try_to_autologin

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set_localization(User.active.find_by_id(session[:user_id]))

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set_localization(User.active.find_by_id(session[:user_id]))

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self.logged_user = nil

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self.logged_user = nil

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flash[:error] = l(:error_session_expired)

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flash[:error] = l(:error_session_expired)

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require_login

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require_login

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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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def session_expired?

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def session_expired?

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! User.verify_session_token(session[:user_id], session[:tk])

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! User.verify_session_token(session[:user_id], session[:tk])

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end

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end

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def start_user_session(user)

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def start_user_session(user)

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session[:user_id] = user.id

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session[:user_id] = user.id

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session[:tk] = user.generate_session_token

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session[:tk] = user.generate_session_token

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if user.must_change_password?

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if user.must_change_password?

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session[:pwd] = '1'

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session[:pwd] = '1'

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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 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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logger.info(" Current user: " + (User.current.logged? ? "#{User.current.login} (id=#{User.current.id})" : "anonymous")) if logger

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logger.info(" Current user: " + (User.current.logged? ? "#{User.current.login} (id=#{User.current.id})" : "anonymous")) if logger

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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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user = nil

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user = nil

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unless api_request?

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unless api_request?

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

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

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elsif autologin_user = try_to_autologin

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elsif autologin_user = try_to_autologin

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user = autologin_user

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user = autologin_user

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elsif params[:format] == 'atom' && params[:key] && request.get? && accept_rss_auth?

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elsif params[:format] == 'atom' && params[:key] && request.get? && accept_rss_auth?

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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 = User.find_by_rss_key(params[:key])

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user = User.find_by_rss_key(params[:key])

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end

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end

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end

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end

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if user.nil? && Setting.rest_api_enabled? && accept_api_auth?

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if user.nil? && Setting.rest_api_enabled? && accept_api_auth?

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if (key = api_key_from_request)

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if (key = api_key_from_request)

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# Use API key

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# Use API key

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user = User.find_by_api_key(key)

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user = User.find_by_api_key(key)

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elsif request.authorization.to_s =~ /\ABasic /i

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elsif request.authorization.to_s =~ /\ABasic /i

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

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user = 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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if user && user.must_change_password?

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if user && user.must_change_password?

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render_error :message => 'You must change your password', :status => 403

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render_error :message => 'You must change your password', :status => 403

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return

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return

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end

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end

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end

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end

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# Switch user if requested by an admin user

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# Switch user if requested by an admin user

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if user && user.admin? && (username = api_switch_user_from_request)

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if user && user.admin? && (username = api_switch_user_from_request)

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su = User.find_by_login(username)

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su = User.find_by_login(username)

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if su && su.active?

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if su && su.active?

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logger.info(" User switched by: #{user.login} (id=#{user.id})") if logger

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logger.info(" User switched by: #{user.login} (id=#{user.id})") if logger

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user = su

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user = su

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else

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else

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render_error :message => 'Invalid X-Redmine-Switch-User header', :status => 412

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render_error :message => 'Invalid X-Redmine-Switch-User header', :status => 412

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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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# store current ip address in user object ephemerally

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# store current ip address in user object ephemerally

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user.remote_ip = request.remote_ip if user

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user.remote_ip = request.remote_ip if user

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user

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user

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end

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end

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def autologin_cookie_name

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def autologin_cookie_name

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Redmine::Configuration['autologin_cookie_name'].presence || 'autologin'

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Redmine::Configuration['autologin_cookie_name'].presence || 'autologin'

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end

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end

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def try_to_autologin

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def try_to_autologin

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if cookies[autologin_cookie_name] && Setting.autologin?

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if cookies[autologin_cookie_name] && 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_cookie_name])

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user = User.try_to_autologin(cookies[autologin_cookie_name])

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if user

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if user

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reset_session

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reset_session

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start_user_session(user)

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start_user_session(user)

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end

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end

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user

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user

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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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start_user_session(user)

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start_user_session(user)

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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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# Logs out current user

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# Logs out current user

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def logout_user

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def logout_user

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if User.current.logged?

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if User.current.logged?

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cookies.delete(autologin_cookie_name)

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cookies.delete(autologin_cookie_name)

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Token.where(["user_id = ? AND action = ?", User.current.id, 'autologin']).delete_all

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Token.where(["user_id = ? AND action = ?", User.current.id, 'autologin']).delete_all

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Token.where(["user_id = ? AND action = ? AND value = ?", User.current.id, 'session', session[:tk]]).delete_all

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Token.where(["user_id = ? AND action = ? AND value = ?", User.current.id, 'session', session[:tk]]).delete_all

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self.logged_user = nil

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self.logged_user = nil

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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 check_password_change

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def check_password_change

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if session[:pwd]

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if session[:pwd]

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if User.current.must_change_password?

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if User.current.must_change_password?

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flash[:error] = l(:error_password_expired)

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flash[:error] = l(:error_password_expired)

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redirect_to my_password_path

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redirect_to my_password_path

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else

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else

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session.delete(:pwd)

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session.delete(:pwd)

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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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def set_localization(user=User.current)

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def set_localization(user=User.current)

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lang = nil

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lang = nil

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if user && user.logged?

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if user && user.logged?

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lang = find_language(user.language)

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lang = find_language(user.language)

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end

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end

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

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

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

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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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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 = request.original_url

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url = request.original_url

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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 {

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format.html {

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if request.xhr?

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if request.xhr?

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head :unauthorized

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head :unauthorized

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else

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else

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redirect_to signin_path(:back_url => url)

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redirect_to signin_path(:back_url => url)

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end

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end

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}

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}

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format.any(:atom, :pdf, :csv) {

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format.any(:atom, :pdf, :csv) {

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redirect_to signin_path(:back_url => url)

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redirect_to signin_path(:back_url => url)

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}

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}

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

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format.js { 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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format.any { head :unauthorized }

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format.any { head :unauthorized }

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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 || @projects, :global => global)

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

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if allowed

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if allowed

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true

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true

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else

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else

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if @project && @project.archived?

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if @project && @project.archived?

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render_403 :message => :notice_not_authorized_archived_project

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render_403 :message => :notice_not_authorized_archived_project

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else

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else

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deny_access

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deny_access

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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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# 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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# Find project of id params[:project_id]

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# Find project of id params[:project_id]

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def find_project_by_project_id

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def find_project_by_project_id

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

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@project = Project.find(params[:project_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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# Find a project based on params[:project_id]

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# Find a project based on params[:project_id]

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# TODO: some subclasses override this, see about merging their logic

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# TODO: some subclasses override this, see about merging their logic

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def find_optional_project

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def find_optional_project

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@project = Project.find(params[:project_id]) unless params[:project_id].blank?

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@project = Project.find(params[:project_id]) unless params[:project_id].blank?

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allowed = User.current.allowed_to?({:controller => params[:controller], :action => params[:action]}, @project, :global => true)

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allowed = User.current.allowed_to?({:controller => params[:controller], :action => params[:action]}, @project, :global => true)

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allowed ? true : deny_access

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allowed ? true : deny_access

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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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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.model_object

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model = self.class.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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self.model_object = model

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self.model_object = model

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end

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end

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# Find the issue whose id is the :id parameter

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# Find the issue whose id is the :id parameter

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# Raises a Unauthorized exception if the issue is not visible

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# Raises a Unauthorized exception if the issue is not visible

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def find_issue

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def find_issue

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# Issue.visible.find(...) can not be used to redirect user to the login form

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# Issue.visible.find(...) can not be used to redirect user to the login form

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# if the issue actually exists but requires authentication

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# if the issue actually exists but requires authentication

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@issue = Issue.find(params[:id])

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@issue = Issue.find(params[:id])

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raise Unauthorized unless @issue.visible?

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raise Unauthorized unless @issue.visible?

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@project = @issue.project

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@project = @issue.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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# Find issues with a single :id param or :ids array param

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# Find issues with a single :id param or :ids array param

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# Raises a Unauthorized exception if one of the issues is not visible

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# Raises a Unauthorized exception if one of the issues is not visible

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def find_issues

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def find_issues

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@issues = Issue.

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@issues = Issue.

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where(:id => (params[:id] || params[:ids])).

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where(:id => (params[:id] || params[:ids])).

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preload(:project, :status, :tracker, :priority, :author, :assigned_to, :relations_to, {:custom_values => :custom_field}).

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preload(:project, :status, :tracker, :priority, :author, :assigned_to, :relations_to, {:custom_values => :custom_field}).

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to_a

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to_a

337

raise ActiveRecord::RecordNotFound if @issues.empty?

337

raise ActiveRecord::RecordNotFound if @issues.empty?

338

raise Unauthorized unless @issues.all?(&:visible?)

338

raise Unauthorized unless @issues.all?(&:visible?)

339

@projects = @issues.collect(&:project).compact.uniq

339

@projects = @issues.collect(&:project).compact.uniq

340

@project = @projects.first if @projects.size == 1

340

@project = @projects.first if @projects.size == 1

341

rescue ActiveRecord::RecordNotFound

341

rescue ActiveRecord::RecordNotFound

342

render_404

342

render_404

343

end

343

end

344

345

def find_attachments

345

def find_attachments

346

if (attachments = params[:attachments]).present?

346

if (attachments = params[:attachments]).present?

347

att = attachments.values.collect do |attachment|

347

att = attachments.values.collect do |attachment|

348

Attachment.find_by_token( attachment[:token] ) if attachment[:token].present?

348

Attachment.find_by_token( attachment[:token] ) if attachment[:token].present?

349

end

349

end

350

att.compact!

350

att.compact!

351

end

351

end

352

@attachments = att || []

352

@attachments = att || []

353

end

353

end

354

355

def parse_params_for_bulk_update(params)

355

def parse_params_for_bulk_update(params)

356

attributes = (params || {}).reject {|k,v| v.blank?}

356

attributes = (params || {}).reject {|k,v| v.blank?}

357

attributes.keys.each {|k| attributes[k] = '' if attributes[k] == 'none'}

357

attributes.keys.each {|k| attributes[k] = '' if attributes[k] == 'none'}

358

if custom = attributes[:custom_field_values]

358

if custom = attributes[:custom_field_values]

359

custom.reject! {|k,v| v.blank?}

359

custom.reject! {|k,v| v.blank?}

360

custom.keys.each do |k|

360

custom.keys.each do |k|

361

if custom[k].is_a?(Array)

361

if custom[k].is_a?(Array)

362

custom[k] << '' if custom[k].delete('__none__')

362

custom[k] << '' if custom[k].delete('__none__')

363

else

363

else

364

custom[k] = '' if custom[k] == '__none__'

364

custom[k] = '' if custom[k] == '__none__'

365

end

365

end

366

end

366

end

367

end

367

end

368

attributes

368

attributes

369

end

369

end

370

371

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

371

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

372

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

372

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

373

def check_project_privacy

373

def check_project_privacy

374

if @project && !@project.archived?

374

if @project && !@project.archived?

375

if @project.visible?

375

if @project.visible?

376

true

376

true

377

else

377

else

378

deny_access

378

deny_access

379

end

379

end

380

else

380

else

381

@project = nil

381

@project = nil

382

render_404

382

render_404

383

false

383

false

384

end

384

end

385

end

385

end

386

387

def back_url

387

def back_url

388

url = params[:back_url]

388

url = params[:back_url]

389

if url.nil? && referer = request.env['HTTP_REFERER']

389

if url.nil? && referer = request.env['HTTP_REFERER']

390

url = CGI.unescape(referer.to_s)

390

url = CGI.unescape(referer.to_s)

391

end

391

end

392

url

392

url

393

end

393

end

394

395

def redirect_back_or_default(default, options={})

395

def redirect_back_or_default(default, options={})

396

back_url = params[:back_url].to_s

396

back_url = params[:back_url].to_s

397

if back_url.present? && valid_url = validate_back_url(back_url)

397

if back_url.present? && valid_url = validate_back_url(back_url)

398

redirect_to(valid_url)

398

redirect_to(valid_url)

399

return

399

return

400

elsif options[:referer]

400

elsif options[:referer]

401

redirect_to_referer_or default

401

redirect_to_referer_or default

402

return

402

return

403

end

403

end

404

redirect_to default

404

redirect_to default

405

false

405

false

406

end

406

end

407

408

# Returns a validated URL string if back_url is a valid url for redirection,

408

# Returns a validated URL string if back_url is a valid url for redirection,

409

# otherwise false

409

# otherwise false

410

def validate_back_url(back_url)

410

def validate_back_url(back_url)

411

if CGI.unescape(back_url).include?('..')

411

if CGI.unescape(back_url).include?('..')

412

return false

412

return false

413

end

413

end

414

415

begin

415

begin

416

uri = URI.parse(back_url)

416

uri = URI.parse(back_url)

417

rescue URI::InvalidURIError

417

rescue URI::InvalidURIError

418

return false

418

return false

419

end

419

end

420

421

[:scheme, :host, :port].each do |component|

421

[:scheme, :host, :port].each do |component|

422

if uri.send(component).present? && uri.send(component) != request.send(component)

422

if uri.send(component).present? && uri.send(component) != request.send(component)

423

return false

423

return false

424

end

424

end

425

uri.send(:"#{component}=", nil)

425

uri.send(:"#{component}=", nil)

426

end

426

end

427

# Always ignore basic user:password in the URL

427

# Always ignore basic user:password in the URL

428

uri.userinfo = nil

428

uri.userinfo = nil

429

430

path = uri.to_s

430

path = uri.to_s

431

# Ensure that the remaining URL starts with a slash, followed by a

431

# Ensure that the remaining URL starts with a slash, followed by a

432

# non-slash character or the end

432

# non-slash character or the end

433

if path !~ %r{\A/([^/]|\z)}

433

if path !~ %r{\A/([^/]|\z)}

434

return false

434

return false

435

end

435

end

436

437

if path.match(%r{/(login|account/register)})

437

if path.match(%r{/(login|account/register|account/lost_password)})

438

return false

438

return false

439

end

439

end

440

441

if relative_url_root.present? && !path.starts_with?(relative_url_root)

441

if relative_url_root.present? && !path.starts_with?(relative_url_root)

442

return false

442

return false

443

end

443

end

444

445

return path

445

return path

446

end

446

end

447

private :validate_back_url

447

private :validate_back_url

448

449

def valid_back_url?(back_url)

449

def valid_back_url?(back_url)

450

!!validate_back_url(back_url)

450

!!validate_back_url(back_url)

451

end

451

end

452

private :valid_back_url?

452

private :valid_back_url?

453

454

# Redirects to the request referer if present, redirects to args or call block otherwise.

454

# Redirects to the request referer if present, redirects to args or call block otherwise.

455

def redirect_to_referer_or(*args, &block)

455

def redirect_to_referer_or(*args, &block)

456

redirect_to :back

456

redirect_to :back

457

rescue ::ActionController::RedirectBackError

457

rescue ::ActionController::RedirectBackError

458

if args.any?

458

if args.any?

459

redirect_to *args

459

redirect_to *args

460

elsif block_given?

460

elsif block_given?

461

block.call

461

block.call

462

else

462

else

463

raise "#redirect_to_referer_or takes arguments or a block"

463

raise "#redirect_to_referer_or takes arguments or a block"

464

end

464

end

465

end

465

end

466

467

def render_403(options={})

467

def render_403(options={})

468

@project = nil

468

@project = nil

469

render_error({:message => :notice_not_authorized, :status => 403}.merge(options))

469

render_error({:message => :notice_not_authorized, :status => 403}.merge(options))

470

return false

470

return false

471

end

471

end

472

473

def render_404(options={})

473

def render_404(options={})

474

render_error({:message => :notice_file_not_found, :status => 404}.merge(options))

474

render_error({:message => :notice_file_not_found, :status => 404}.merge(options))

475

return false

475

return false

476

end

476

end

477

478

# Renders an error response

478

# Renders an error response

479

def render_error(arg)

479

def render_error(arg)

480

arg = {:message => arg} unless arg.is_a?(Hash)

480

arg = {:message => arg} unless arg.is_a?(Hash)

481

482

@message = arg[:message]

482

@message = arg[:message]

483

@message = l(@message) if @message.is_a?(Symbol)

483

@message = l(@message) if @message.is_a?(Symbol)

484

@status = arg[:status] || 500

484

@status = arg[:status] || 500

485

486

respond_to do |format|

486

respond_to do |format|

487

format.html {

487

format.html {

488

render :template => 'common/error', :layout => use_layout, :status => @status

488

render :template => 'common/error', :layout => use_layout, :status => @status

489

}

489

}

490

format.any { head @status }

490

format.any { head @status }

491

end

491

end

492

end

492

end

493

494

# Handler for ActionView::MissingTemplate exception

494

# Handler for ActionView::MissingTemplate exception

495

def missing_template

495

def missing_template

496

logger.warn "Missing template, responding with 404"

496

logger.warn "Missing template, responding with 404"

497

@project = nil

497

@project = nil

498

render_404

498

render_404

499

end

499

end

500

501

# Filter for actions that provide an API response

501

# Filter for actions that provide an API response

502

# but have no HTML representation for non admin users

502

# but have no HTML representation for non admin users

503

def require_admin_or_api_request

503

def require_admin_or_api_request

504

return true if api_request?

504

return true if api_request?

505

if User.current.admin?

505

if User.current.admin?

506

true

506

true

507

elsif User.current.logged?

507

elsif User.current.logged?

508

render_error(:status => 406)

508

render_error(:status => 406)

509

else

509

else

510

deny_access

510

deny_access

511

end

511

end

512

end

512

end

513

514

# Picks which layout to use based on the request

514

# Picks which layout to use based on the request

515

#

515

#

516

# @return [boolean, string] name of the layout to use or false for no layout

516

# @return [boolean, string] name of the layout to use or false for no layout

517

def use_layout

517

def use_layout

518

request.xhr? ? false : 'base'

518

request.xhr? ? false : 'base'

519

end

519

end

520

521

def render_feed(items, options={})

521

def render_feed(items, options={})

522

@items = (items || []).to_a

522

@items = (items || []).to_a

523

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

523

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

524

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

524

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

525

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

525

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

526

render :template => "common/feed", :formats => [:atom], :layout => false,

526

render :template => "common/feed", :formats => [:atom], :layout => false,

527

:content_type => 'application/atom+xml'

527

:content_type => 'application/atom+xml'

528

end

528

end

529

530

def self.accept_rss_auth(*actions)

530

def self.accept_rss_auth(*actions)

531

if actions.any?

531

if actions.any?

532

self.accept_rss_auth_actions = actions

532

self.accept_rss_auth_actions = actions

533

else

533

else

534

self.accept_rss_auth_actions || []

534

self.accept_rss_auth_actions || []

535

end

535

end

536

end

536

end

537

538

def accept_rss_auth?(action=action_name)

538

def accept_rss_auth?(action=action_name)

539

self.class.accept_rss_auth.include?(action.to_sym)

539

self.class.accept_rss_auth.include?(action.to_sym)

540

end

540

end

541

542

def self.accept_api_auth(*actions)

542

def self.accept_api_auth(*actions)

543

if actions.any?

543

if actions.any?

544

self.accept_api_auth_actions = actions

544

self.accept_api_auth_actions = actions

545

else

545

else

546

self.accept_api_auth_actions || []

546

self.accept_api_auth_actions || []

547

end

547

end

548

end

548

end

549

550

def accept_api_auth?(action=action_name)

550

def accept_api_auth?(action=action_name)

551

self.class.accept_api_auth.include?(action.to_sym)

551

self.class.accept_api_auth.include?(action.to_sym)

552

end

552

end

553

554

# Returns the number of objects that should be displayed

554

# Returns the number of objects that should be displayed

555

# on the paginated list

555

# on the paginated list

556

def per_page_option

556

def per_page_option

557

per_page = nil

557

per_page = nil

558

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

558

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

559

per_page = params[:per_page].to_s.to_i

559

per_page = params[:per_page].to_s.to_i

560

session[:per_page] = per_page

560

session[:per_page] = per_page

561

elsif session[:per_page]

561

elsif session[:per_page]

562

per_page = session[:per_page]

562

per_page = session[:per_page]

563

else

563

else

564

per_page = Setting.per_page_options_array.first || 25

564

per_page = Setting.per_page_options_array.first || 25

565

end

565

end

566

per_page

566

per_page

567

end

567

end

568

569

# Returns offset and limit used to retrieve objects

569

# Returns offset and limit used to retrieve objects

570

# for an API response based on offset, limit and page parameters

570

# for an API response based on offset, limit and page parameters

571

def api_offset_and_limit(options=params)

571

def api_offset_and_limit(options=params)

572

if options[:offset].present?

572

if options[:offset].present?

573

offset = options[:offset].to_i

573

offset = options[:offset].to_i

574

if offset < 0

574

if offset < 0

575

offset = 0

575

offset = 0

576

end

576

end

577

end

577

end

578

limit = options[:limit].to_i

578

limit = options[:limit].to_i

579

if limit < 1

579

if limit < 1

580

limit = 25

580

limit = 25

581

elsif limit > 100

581

elsif limit > 100

582

limit = 100

582

limit = 100

583

end

583

end

584

if offset.nil? && options[:page].present?

584

if offset.nil? && options[:page].present?

585

offset = (options[:page].to_i - 1) * limit

585

offset = (options[:page].to_i - 1) * limit

586

offset = 0 if offset < 0

586

offset = 0 if offset < 0

587

end

587

end

588

offset ||= 0

588

offset ||= 0

589

590

[offset, limit]

590

[offset, limit]

591

end

591

end

592

593

# qvalues http header parser

593

# qvalues http header parser

594

# code taken from webrick

594

# code taken from webrick

595

def parse_qvalues(value)

595

def parse_qvalues(value)

596

tmp = []

596

tmp = []

597

if value

597

if value

598

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

598

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

599

parts.each {|part|

599

parts.each {|part|

600

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

600

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

601

val = m[1]

601

val = m[1]

602

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

602

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

603

tmp.push([val, q])

603

tmp.push([val, q])

604

end

604

end

605

}

605

}

606

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

606

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

607

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

607

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

608

end

608

end

609

return tmp

609

return tmp

610

rescue

610

rescue

611

nil

611

nil

612

end

612

end

613

614

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

614

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

615

def filename_for_content_disposition(name)

615

def filename_for_content_disposition(name)

616

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

616

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

617

end

617

end

618

619

def api_request?

619

def api_request?

620

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

620

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

621

end

621

end

622

623

# Returns the API key present in the request

623

# Returns the API key present in the request

624

def api_key_from_request

624

def api_key_from_request

625

if params[:key].present?

625

if params[:key].present?

626

params[:key].to_s

626

params[:key].to_s

627

elsif request.headers["X-Redmine-API-Key"].present?

627

elsif request.headers["X-Redmine-API-Key"].present?

628

request.headers["X-Redmine-API-Key"].to_s

628

request.headers["X-Redmine-API-Key"].to_s

629

end

629

end

630

end

630

end

631

632

# Returns the API 'switch user' value if present

632

# Returns the API 'switch user' value if present

633

def api_switch_user_from_request

633

def api_switch_user_from_request

634

request.headers["X-Redmine-Switch-User"].to_s.presence

634

request.headers["X-Redmine-Switch-User"].to_s.presence

635

end

635

end

636

637

# Renders a warning flash if obj has unsaved attachments

637

# Renders a warning flash if obj has unsaved attachments

638

def render_attachment_warning_if_needed(obj)

638

def render_attachment_warning_if_needed(obj)

639

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

639

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

640

end

640

end

641

642

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

642

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

643

def query_statement_invalid(exception)

643

def query_statement_invalid(exception)

644

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

644

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

645

session.delete(:query)

645

session.delete(:query)

646

sort_clear if respond_to?(:sort_clear)

646

sort_clear if respond_to?(:sort_clear)

647

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

647

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

648

end

648

end

649

650

# Renders a 200 response for successfull updates or deletions via the API

650

# Renders a 200 response for successfull updates or deletions via the API

651

def render_api_ok

651

def render_api_ok

652

render_api_head :ok

652

render_api_head :ok

653

end

653

end

654

655

# Renders a head API response

655

# Renders a head API response

656

def render_api_head(status)

656

def render_api_head(status)

657

head :status => status

657

head :status => status

658

end

658

end

659

660

# Renders API response on validation failure

660

# Renders API response on validation failure

661

# for an object or an array of objects

661

# for an object or an array of objects

662

def render_validation_errors(objects)

662

def render_validation_errors(objects)

663

messages = Array.wrap(objects).map {|object| object.errors.full_messages}.flatten

663

messages = Array.wrap(objects).map {|object| object.errors.full_messages}.flatten

664

render_api_errors(messages)

664

render_api_errors(messages)

665

end

665

end

666

667

def render_api_errors(*messages)

667

def render_api_errors(*messages)

668

@error_messages = messages.flatten

668

@error_messages = messages.flatten

669

render :template => 'common/error_messages.api', :status => :unprocessable_entity, :layout => nil

669

render :template => 'common/error_messages.api', :status => :unprocessable_entity, :layout => nil

670

end

670

end

671

672

# Overrides #_include_layout? so that #render with no arguments

672

# Overrides #_include_layout? so that #render with no arguments

673

# doesn't use the layout for api requests

673

# doesn't use the layout for api requests

674

def _include_layout?(*args)

674

def _include_layout?(*args)

675

api_request? ? false : super

675

api_request? ? false : super

676

end

676

end

677

end

677

end

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             # Redmine - project management software
             # Copyright (C) 2006-2016  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 Unauthorized < Exception; end
             class ApplicationController < ActionController::Base
               include Redmine::I18n
               include Redmine::Pagination
               include Redmine::Hook::Helper
               include RoutesHelper
               helper :routes
               class_attribute :accept_api_auth_actions
               class_attribute :accept_rss_auth_actions
               class_attribute :model_object
               layout 'base'
               protect_from_forgery
               def verify_authenticity_token
                 unless api_request?
                   super
                 end
               end
               def handle_unverified_request
                 unless api_request?
                   super
                   cookies.delete(autologin_cookie_name)
                   self.logged_user = nil
                   set_localization
                   render_error :status => 422, :message => "Invalid form authenticity token."
                 end
               end
               before_action :session_expiration, :user_setup, :check_if_login_required, :set_localization, :check_password_change
               rescue_from ::Unauthorized, :with => :deny_access
               rescue_from ::ActionView::MissingTemplate, :with => :missing_template
               include Redmine::Search::Controller
               include Redmine::MenuManager::MenuController
               helper Redmine::MenuManager::MenuHelper
               include Redmine::SudoMode::Controller
               def session_expiration
                 if session[:user_id] && Rails.application.config.redmine_verify_sessions != false
                   if session_expired? && !try_to_autologin
                     set_localization(User.active.find_by_id(session[:user_id]))
                     self.logged_user = nil
                     flash[:error] = l(:error_session_expired)
                     require_login
                   end
                 end
               end
               def session_expired?
                 ! User.verify_session_token(session[:user_id], session[:tk])
               end
               def start_user_session(user)
                 session[:user_id] = user.id
                 session[:tk] = user.generate_session_token
                 if user.must_change_password?
                   session[:pwd] = '1'
                 end
               end
               def user_setup
                 # Check the settings cache for each request
                 Setting.check_cache
                 # Find the current user
                 User.current = find_current_user
                 logger.info("  Current user: " + (User.current.logged? ? "#{User.current.login} (id=#{User.current.id})" : "anonymous")) if logger
               end
               # Returns the current user or nil if no user is logged in
               # and starts a session if needed
               def find_current_user
                 user = nil
                 unless api_request?
                   if session[:user_id]
                     # existing session
                     user = (User.active.find(session[:user_id]) rescue nil)
                   elsif autologin_user = try_to_autologin
                     user = autologin_user
                   elsif params[:format] == 'atom' && params[:key] && request.get? && accept_rss_auth?
                     # RSS key authentication does not start a session
                     user = User.find_by_rss_key(params[:key])
                   end
                 end
                 if user.nil? && Setting.rest_api_enabled? && accept_api_auth?
                   if (key = api_key_from_request)
                     # Use API key
                     user = User.find_by_api_key(key)
                   elsif request.authorization.to_s =~ /\ABasic /i
                     # HTTP Basic, either username/password or API key/random
                     authenticate_with_http_basic do |username, password|
                       user = User.try_to_login(username, password) || User.find_by_api_key(username)
                     end
                     if user && user.must_change_password?
                       render_error :message => 'You must change your password', :status => 403
                       return
                     end
                   end
                   # Switch user if requested by an admin user
                   if user && user.admin? && (username = api_switch_user_from_request)
                     su = User.find_by_login(username)
                     if su && su.active?
                       logger.info("  User switched by: #{user.login} (id=#{user.id})") if logger
                       user = su
                     else
                       render_error :message => 'Invalid X-Redmine-Switch-User header', :status => 412
                     end
                   end
                 end
                 # store current ip address in user object ephemerally
                 user.remote_ip = request.remote_ip if user
                 user
               end
               def autologin_cookie_name
                 Redmine::Configuration['autologin_cookie_name'].presence || 'autologin'
               end
               def try_to_autologin
                 if cookies[autologin_cookie_name] && Setting.autologin?
                   # auto-login feature starts a new session
                   user = User.try_to_autologin(cookies[autologin_cookie_name])
                   if user
                     reset_session
                     start_user_session(user)
                   end
                   user
                 end
               end
               # Sets the logged in user
               def logged_user=(user)
                 reset_session
                 if user && user.is_a?(User)
                   User.current = user
                   start_user_session(user)
                 else
                   User.current = User.anonymous
                 end
               end
               # Logs out current user
               def logout_user
                 if User.current.logged?
                   cookies.delete(autologin_cookie_name)
                   Token.where(["user_id = ? AND action = ?", User.current.id, 'autologin']).delete_all
                   Token.where(["user_id = ? AND action = ? AND value = ?", User.current.id, 'session', session[:tk]]).delete_all
                   self.logged_user = nil
                 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 check_password_change
                 if session[:pwd]
                   if User.current.must_change_password?
                     flash[:error] = l(:error_password_expired)
                     redirect_to my_password_path
                   else
                     session.delete(:pwd)
                   end
                 end
               end
               def set_localization(user=User.current)
                 lang = nil
                 if user && user.logged?
                   lang = find_language(user.language)
                 end
                 if lang.nil? && !Setting.force_default_language_for_anonymous? && request.env['HTTP_ACCEPT_LANGUAGE']
                   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 = request.original_url
                   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 {
                       if request.xhr?
                         head :unauthorized
                       else
                         redirect_to signin_path(:back_url => url)
                       end
                     }
                     format.any(:atom, :pdf, :csv) {
                       redirect_to signin_path(:back_url => url)
                     }
                     format.xml  { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }
                     format.js   { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }
                     format.json { head :unauthorized, 'WWW-Authenticate' => 'Basic realm="Redmine API"' }
                     format.any  { head :unauthorized }
                   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 || @projects, :global => global)
                 if allowed
                   true
                 else
                   if @project && @project.archived?
                     render_403 :message => :notice_not_authorized_archived_project
                   else
                     deny_access
                   end
                 end
               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
               # Find project of id params[:project_id]
               def find_project_by_project_id
                 @project = Project.find(params[:project_id])
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               # Find a project based on params[:project_id]
               # TODO: some subclasses override this, see about merging their logic
               def find_optional_project
                 @project = Project.find(params[:project_id]) unless params[:project_id].blank?
                 allowed = User.current.allowed_to?({:controller => params[:controller], :action => params[:action]}, @project, :global => true)
                 allowed ? true : deny_access
               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
               end
               def find_model_object
                 model = self.class.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)
                 self.model_object = model
               end
               # Find the issue whose id is the :id parameter
               # Raises a Unauthorized exception if the issue is not visible
               def find_issue
                 # Issue.visible.find(...) can not be used to redirect user to the login form
                 # if the issue actually exists but requires authentication
                 @issue = Issue.find(params[:id])
                 raise Unauthorized unless @issue.visible?
                 @project = @issue.project
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               # Find issues with a single :id param or :ids array param
               # Raises a Unauthorized exception if one of the issues is not visible
               def find_issues
                 @issues = Issue.
                   where(:id => (params[:id] || params[:ids])).
                   preload(:project, :status, :tracker, :priority, :author, :assigned_to, :relations_to, {:custom_values => :custom_field}).
                   to_a
                 raise ActiveRecord::RecordNotFound if @issues.empty?
                 raise Unauthorized unless @issues.all?(&:visible?)
                 @projects = @issues.collect(&:project).compact.uniq
                 @project = @projects.first if @projects.size == 1
               rescue ActiveRecord::RecordNotFound
                 render_404
               end
               def find_attachments
                 if (attachments = params[:attachments]).present?
                   att = attachments.values.collect do |attachment|
                     Attachment.find_by_token( attachment[:token] ) if attachment[:token].present?
                   end
                   att.compact!
                 end
                 @attachments = att || []
               end
               def parse_params_for_bulk_update(params)
                 attributes = (params || {}).reject {|k,v| v.blank?}
                 attributes.keys.each {|k| attributes[k] = '' if attributes[k] == 'none'}
                 if custom = attributes[:custom_field_values]
                   custom.reject! {|k,v| v.blank?}
                   custom.keys.each do |k|
                     if custom[k].is_a?(Array)
                       custom[k] << '' if custom[k].delete('__none__')
                     else
                       custom[k] = '' if custom[k] == '__none__'
                     end
                   end
                 end
                 attributes
               end
               # make sure that the user is a member of the project (or admin) if project is private
               # used as a before_action for actions that do not require any particular permission on the project
               def check_project_privacy
                 if @project && !@project.archived?
                   if @project.visible?
                     true
                   else
                     deny_access
                   end
                 else
                   @project = nil
                   render_404
                   false
                 end
               end
               def back_url
                 url = params[:back_url]
                 if url.nil? && referer = request.env['HTTP_REFERER']
                   url = CGI.unescape(referer.to_s)
                 end
                 url
               end
               def redirect_back_or_default(default, options={})
                 back_url = params[:back_url].to_s
                 if back_url.present? && valid_url = validate_back_url(back_url)
                   redirect_to(valid_url)
                   return
                 elsif options[:referer]
                   redirect_to_referer_or default
                   return
                 end
                 redirect_to default
                 false
               end
               # Returns a validated URL string if back_url is a valid url for redirection,
               # otherwise false
               def validate_back_url(back_url)
                 if CGI.unescape(back_url).include?('..')
                   return false
                 end
                 begin
                   uri = URI.parse(back_url)
                 rescue URI::InvalidURIError
                   return false
                 end
                 [:scheme, :host, :port].each do |component|
                   if uri.send(component).present? && uri.send(component) != request.send(component)
                     return false
                   end
                   uri.send(:"#{component}=", nil)
                 end
                 # Always ignore basic user:password in the URL
                 uri.userinfo = nil
                 path = uri.to_s
                 # Ensure that the remaining URL starts with a slash, followed by a
                 # non-slash character or the end
                 if path !~ %r{\A/([^/]|\z)}
                   return false
                 end
-                if path.match(%r{/(login|account/register)})
+                if path.match(%r{/(login|account/register|account/lost_password)})
                   return false
                 end
                 if relative_url_root.present? && !path.starts_with?(relative_url_root)
                   return false
                 end
                 return path
               end
               private :validate_back_url
               def valid_back_url?(back_url)
                 !!validate_back_url(back_url)
               end
               private :valid_back_url?
               # Redirects to the request referer if present, redirects to args or call block otherwise.
               def redirect_to_referer_or(*args, &block)
                 redirect_to :back
               rescue ::ActionController::RedirectBackError
                 if args.any?
                   redirect_to *args
                 elsif block_given?
                   block.call
                 else
                   raise "#redirect_to_referer_or takes arguments or a block"
                 end
               end
               def render_403(options={})
                 @project = nil
                 render_error({:message => :notice_not_authorized, :status => 403}.merge(options))
                 return false
               end
               def render_404(options={})
                 render_error({:message => :notice_file_not_found, :status => 404}.merge(options))
                 return false
               end
               # Renders an error response
               def render_error(arg)
                 arg = {:message => arg} unless arg.is_a?(Hash)
                 @message = arg[:message]
                 @message = l(@message) if @message.is_a?(Symbol)
                 @status = arg[:status] || 500
                 respond_to do |format|
                   format.html {
                     render :template => 'common/error', :layout => use_layout, :status => @status
                   }
                   format.any { head @status }
                 end
               end
               # Handler for ActionView::MissingTemplate exception
               def missing_template
                 logger.warn "Missing template, responding with 404"
                 @project = nil
                 render_404
               end
               # Filter for actions that provide an API response
               # but have no HTML representation for non admin users
               def require_admin_or_api_request
                 return true if api_request?
                 if User.current.admin?
                   true
                 elsif User.current.logged?
                   render_error(:status => 406)
                 else
                   deny_access
                 end
               end
               # Picks which layout to use based on the request
               #
               # @return [boolean, string] name of the layout to use or false for no layout
               def use_layout
                 request.xhr? ? false : 'base'
               end
               def render_feed(items, options={})
                 @items = (items || []).to_a
                 @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", :formats => [:atom], :layout => false,
                        :content_type => 'application/atom+xml'
               end
               def self.accept_rss_auth(*actions)
                 if actions.any?
                   self.accept_rss_auth_actions = actions
                 else
                   self.accept_rss_auth_actions || []
                 end
               end
               def accept_rss_auth?(action=action_name)
                 self.class.accept_rss_auth.include?(action.to_sym)
               end
               def self.accept_api_auth(*actions)
                 if actions.any?
                   self.accept_api_auth_actions = actions
                 else
                   self.accept_api_auth_actions || []
                 end
               end
               def accept_api_auth?(action=action_name)
                 self.class.accept_api_auth.include?(action.to_sym)
               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
               # Returns offset and limit used to retrieve objects
               # for an API response based on offset, limit and page parameters
               def api_offset_and_limit(options=params)
                 if options[:offset].present?
                   offset = options[:offset].to_i
                   if offset < 0
                     offset = 0
                   end
                 end
                 limit = options[:limit].to_i
                 if limit < 1
                   limit = 25
                 elsif limit > 100
                   limit = 100
                 end
                 if offset.nil? && options[:page].present?
                   offset = (options[:page].to_i - 1) * limit
                   offset = 0 if offset < 0
                 end
                 offset ||= 0
                 [offset, limit]
               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|Trident|Edge)} ? ERB::Util.url_encode(name) : name
               end
               def api_request?
                 %w(xml json).include? params[:format]
               end
               # Returns the API key present in the request
               def api_key_from_request
                 if params[:key].present?
                   params[:key].to_s
                 elsif request.headers["X-Redmine-API-Key"].present?
                   request.headers["X-Redmine-API-Key"].to_s
                 end
               end
               # Returns the API 'switch user' value if present
               def api_switch_user_from_request
                 request.headers["X-Redmine-Switch-User"].to_s.presence
               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
               # Renders a 200 response for successfull updates or deletions via the API
               def render_api_ok
                 render_api_head :ok
               end
               # Renders a head API response
               def render_api_head(status)
                 head :status => status
               end
               # Renders API response on validation failure
               # for an object or an array of objects
               def render_validation_errors(objects)
                 messages = Array.wrap(objects).map {|object| object.errors.full_messages}.flatten
                 render_api_errors(messages)
               end
               def render_api_errors(*messages)
                 @error_messages = messages.flatten
                 render :template => 'common/error_messages.api', :status => :unprocessable_entity, :layout => nil
               end
               # Overrides #_include_layout? so that #render with no arguments
               # doesn't use the layout for api requests
               def _include_layout?(*args)
                 api_request? ? false : super
               end
             end