# 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
- # HTTP AUTH stuff for the API
-
- def authorize(realm='Web Password', errormessage="Could't authenticate you")
- username, passwd = get_auth_data
- # check if authorized
- # try to get user
- if @user = User.authenticate(username, passwd)
- # user exists and password is correct ... horray!
- if @user.methods.include? 'lastlogin'
- # note last login
- @session['lastlogin'] = user.lastlogin
- @user.last.login = Time.now
- @user.save()
- @session["User.id"] = @user.id
- end
- else
- # the user does not exist or the password was wrong
- @response.headers["Status"] = "Unauthorized"
- @response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
- render_text(errormessage, 401)
+ 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
- private
+ 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)
+ 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
- user, pass = '', ''
- # extract authorisation credentials
- if request.env.has_key? 'X-HTTP_AUTHORIZATION'
- # try to get it where mod_rewrite might have put it
- authdata = @request.env['X-HTTP_AUTHORIZATION'].to_s.split
- elsif request.env.has_key? 'HTTP_AUTHORIZATION'
- # this is the regular location
- authdata = @request.env['HTTP_AUTHORIZATION'].to_s.split
+ 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
-
- # at the moment we only support basic authentication
+ # only basic authentication supported
if authdata and authdata[0] == 'Basic'
- user, pass = Base64.decode64(authdata[1]).split(':')[0..1]
+ user, pass = Base64.decode64(authdata[1]).split(':',2)
end
return [user, pass]
end
projects / rails.git / blobdiff