+++ /dev/null
-# Filters added to this controller will be run for all controllers in the application.
-# Likewise, all the methods added will be available for all controllers.
-class ApplicationController < ActionController::Base
-
- if OSM_STATUS == :database_readonly or OSM_STATUS == :database_offline
- session :off
- end
-
- def authorize_web
- if session[:user]
- @user = User.find(session[:user], :conditions => {:visible => true})
- elsif session[:token]
- @user = User.authenticate(:token => session[:token])
- session[:user] = @user.id
- end
- rescue Exception => ex
- logger.info("Exception authorizing user: #{ex.to_s}")
- @user = nil
- end
-
- def require_user
- redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user
- end
-
- ##
- # sets up the @user object for use by other methods. this is mostly called
- # from the authorize method, but can be called elsewhere if authorisation
- # is optional.
- def setup_user_auth
- username, passwd = get_auth_data # parse from headers
- # authenticate per-scheme
- if username.nil?
- @user = nil # no authentication provided - perhaps first connect (client should retry after 401)
- elsif username == 'token'
- @user = User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
- else
- @user = User.authenticate(:username => username, :password => passwd) # basic auth
- end
- end
-
- def authorize(realm='Web Password', errormessage="Couldn't authenticate you")
- # make the @user object from any auth sources we have
- setup_user_auth
-
- # handle authenticate pass/fail
- unless @user
- # no auth, the user does not exist or the password was wrong
- response.headers["Status"] = "Unauthorized"
- response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
- render :text => errormessage, :status => :unauthorized
- return false
- end
- end
-
- def check_database_readable(need_api = false)
- if OSM_STATUS == :database_offline or (need_api and OSM_STATUS == :api_offline)
- redirect_to :controller => 'site', :action => 'offline'
- end
- end
-
- def check_database_writable(need_api = false)
- if OSM_STATUS == :database_offline or OSM_STATUS == :database_readonly or
- (need_api and (OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly))
- redirect_to :controller => 'site', :action => 'offline'
- end
- end
-
- def check_api_readable
- if OSM_STATUS == :database_offline or OSM_STATUS == :api_offline
- response.headers['Error'] = "Database offline for maintenance"
- render :nothing => true, :status => :service_unavailable
- return false
- end
- end
-
- def check_api_writable
- if OSM_STATUS == :database_offline or OSM_STATUS == :database_readonly or
- OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly
- response.headers['Error'] = "Database offline for maintenance"
- render :nothing => true, :status => :service_unavailable
- return false
- end
- end
-
- def require_public_data
- unless @user.data_public?
- response.headers['Error'] = "You must make your edits public to upload new data"
- render :nothing => true, :status => :forbidden
- return false
- end
- end
-
- # Report and error to the user
- # (If anyone ever fixes Rails so it can set a http status "reason phrase",
- # rather than only a status code and having the web engine make up a
- # phrase from that, we can also put the error message into the status
- # message. For now, rails won't let us)
- def report_error(message, status = :bad_request)
- # Todo: some sort of escaping of problem characters in the message
- response.headers['Error'] = message
- render :text => message, :status => status
- end
-
- def set_locale
- if @user
- if !@user.languages.empty?
- request.user_preferred_languages = @user.languages
- elsif !request.user_preferred_languages.empty?
- @user.languages = request.user_preferred_languages
- @user.save
- end
- end
-
- I18n.locale = request.compatible_language_from(I18n.available_locales)
-
- response.headers['Content-Language'] = I18n.locale
- end
-
- def api_call_handle_error
- begin
- yield
- rescue ActiveRecord::RecordNotFound => ex
- render :nothing => true, :status => :not_found
- rescue LibXML::XML::Error, ArgumentError => ex
- report_error ex.message, :bad_request
- rescue ActiveRecord::RecordInvalid => ex
- message = "#{ex.record.class} #{ex.record.id}: "
- ex.record.errors.each { |attr,msg| message << "#{attr}: #{msg} (#{ex.record[attr].inspect})" }
- report_error message, :bad_request
- rescue OSM::APIError => ex
- report_error ex.message, ex.status
- rescue Exception => ex
- report_error "#{ex.class}: #{ex.message}", :internal_server_error
- end
- end
-
- ##
- # asserts that the request method is the +method+ given as a parameter
- # or raises a suitable error. +method+ should be a symbol, e.g: :put or :get.
- def assert_method(method)
- ok = request.send((method.to_s.downcase + "?").to_sym)
- raise OSM::APIBadMethodError.new(method) unless ok
- end
-
- def api_call_timeout
- Timeout::timeout(APP_CONFIG['api_timeout'], OSM::APITimeoutError) do
- yield
- end
- end
-
-private
- # extract authorisation credentials from headers, returns user = nil if none
- def get_auth_data
- if request.env.has_key? 'X-HTTP_AUTHORIZATION' # where mod_rewrite might have put it
- authdata = request.env['X-HTTP_AUTHORIZATION'].to_s.split
- elsif request.env.has_key? 'REDIRECT_X_HTTP_AUTHORIZATION' # mod_fcgi
- authdata = request.env['REDIRECT_X_HTTP_AUTHORIZATION'].to_s.split
- elsif request.env.has_key? 'HTTP_AUTHORIZATION' # regular location
- authdata = request.env['HTTP_AUTHORIZATION'].to_s.split
- end
- # only basic authentication supported
- if authdata and authdata[0] == 'Basic'
- user, pass = Base64.decode64(authdata[1]).split(':',2)
- end
- return [user, pass]
- end
-
-end
projects / rails.git / blobdiff