X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/d227589a6336999c38bffc5e11655100b9a4630a..4e64291839d45a0c660fc84f11a6c4c811cf8f21:/app/controllers/application_controller.rb diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb index c43271b93..618f08a1f 100644 --- a/app/controllers/application_controller.rb +++ b/app/controllers/application_controller.rb @@ -1,30 +1,58 @@ -# 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 + include SessionPersistence - if OSM_STATUS == :database_readonly or OSM_STATUS == :database_offline - session :off - end + protect_from_forgery + + before_action :fetch_body def authorize_web if session[:user] - @user = User.find(session[:user], :conditions => {:visible => true}) + @user = User.where(:id => session[:user]).where("status IN ('active', 'confirmed', 'suspended')").first + + if @user.status == "suspended" + session.delete(:user) + session_expires_automatically + + redirect_to :controller => "user", :action => "suspended" + + # don't allow access to any auth-requiring part of the site unless + # the new CTs have been seen (and accept/decline chosen). + elsif !@user.terms_seen && flash[:skip_terms].nil? + flash[:notice] = t "user.terms.you need to accept or decline" + if params[:referer] + redirect_to :controller => "user", :action => "terms", :referer => params[:referer] + else + redirect_to :controller => "user", :action => "terms", :referer => request.fullpath + end + end elsif session[:token] - @user = User.authenticate(:token => session[:token]) - session[:user] = @user.id + if @user = User.authenticate(:token => session[:token]) + session[:user] = @user.id + end end - rescue Exception => ex - logger.info("Exception authorizing user: #{ex.to_s}") + rescue StandardError => ex + logger.info("Exception authorizing user: #{ex}") + reset_session @user = nil end def require_user - redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user + unless @user + if request.get? + redirect_to :controller => "user", :action => "login", :referer => request.fullpath + else + render :text => "", :status => :forbidden + end + end + end + + def require_oauth + @oauth = @user.access_token(OAUTH_KEY) if @user && defined? OAUTH_KEY end ## - # requires the user to be logged in by the token or HTTP methods, or have an - # OAuth token with the right capability. this method is a bit of a pain to call + # requires the user to be logged in by the token or HTTP methods, or have an + # OAuth token with the right capability. this method is a bit of a pain to call # directly, since it's cumbersome to call filters with arguments in rails. to # make it easier to read and write the code, there are some utility methods # below. @@ -33,9 +61,25 @@ class ApplicationController < ActionController::Base # method, otherwise an OAuth token was used, which has to be checked. unless current_token.nil? unless current_token.read_attribute(cap) - render :text => "OAuth token doesn't have that capability.", :status => :forbidden + report_error "OAuth token doesn't have that capability.", :forbidden + return false + end + end + end + + ## + # require the user to have cookies enabled in their browser + def require_cookies + if request.cookies["_osm_session"].to_s == "" + if params[:cookie_test].nil? + session[:cookie_test] = true + redirect_to Hash[params].merge(:cookie_test => "true") return false + else + flash.now[:warning] = t "application.require_cookies.cookies_needed" end + else + session.delete(:cookie_test) end end @@ -43,141 +87,266 @@ class ApplicationController < ActionController::Base def require_allow_read_prefs require_capability(:allow_read_prefs) end + def require_allow_write_prefs require_capability(:allow_write_prefs) end + def require_allow_write_diary require_capability(:allow_write_diary) end + def require_allow_write_api require_capability(:allow_write_api) + + if REQUIRE_TERMS_AGREED && @user.terms_agreed.nil? + report_error "You must accept the contributor terms before you can edit.", :forbidden + return false + end end + def require_allow_read_gpx require_capability(:allow_read_gpx) end + def require_allow_write_gpx require_capability(:allow_write_gpx) end + def require_allow_write_notes + require_capability(:allow_write_notes) + end + + ## + # require that the user is a moderator, or fill out a helpful error message + # and return them to the index for the controller this is wrapped from. + def require_moderator + unless @user.moderator? + if request.get? + flash[:error] = t("application.require_moderator.not_a_moderator") + redirect_to :action => "index" + else + render :text => "", :status => :forbidden + end + end + 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 # try and setup using OAuth - if oauthenticate - @user = current_token.user - else + unless Authenticator.new(self, [:token]).allow? 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' + 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 + + # have we identified the user? + if @user + # check if the user has been banned + if @user.blocks.active.exists? + # NOTE: need slightly more helpful message than this. + report_error t("application.setup_user_auth.blocked"), :forbidden + end + + # if the user hasn't seen the contributor terms then don't + # allow editing - they have to go to the web site and see + # (but can decline) the CTs to continue. + if REQUIRE_TERMS_SEEN && !@user.terms_seen && flash[:skip_terms].nil? + set_locale + report_error t("application.setup_user_auth.need_to_see_terms"), :forbidden + end + end end - def authorize(realm='Web Password', errormessage="Couldn't authenticate you") + 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["WWW-Authenticate"] = "Basic realm=\"#{realm}\"" + response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\"" render :text => errormessage, :status => :unauthorized return false - end - end + end + end + + ## + # to be used as a before_filter *after* authorize. this checks that + # the user is a moderator and, if not, returns a forbidden error. + # + # NOTE: this isn't a very good way of doing it - it duplicates logic + # from require_moderator - but what we really need to do is a fairly + # drastic refactoring based on :format and respond_to? but not a + # good idea to do that in this branch. + def authorize_moderator(errormessage = "Access restricted to moderators") + # check user is a moderator + unless @user.moderator? + render :text => errormessage, :status => :forbidden + 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' + if STATUS == :database_offline || (need_api && STATUS == :api_offline) + if request.xhr? + report_error "Database offline for maintenance", :service_unavailable + else + redirect_to :controller => "site", :action => "offline" + end 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' + if STATUS == :database_offline || STATUS == :database_readonly || + (need_api && (STATUS == :api_offline || STATUS == :api_readonly)) + if request.xhr? + report_error "Database offline for maintenance", :service_unavailable + else + redirect_to :controller => "site", :action => "offline" + end 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 + if api_status == :offline + report_error "Database offline for maintenance", :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 + unless api_status == :online + report_error "Database offline for maintenance", :service_unavailable return false end end + def database_status + if STATUS == :database_offline + :offline + elsif STATUS == :database_readonly + :readonly + else + :online + end + end + + def api_status + status = database_status + if status == :online + if STATUS == :api_offline + status = :offline + elsif STATUS == :api_readonly + status = :readonly + end + end + status + end + + def gpx_status + status = database_status + status = :offline if status == :online && STATUS == :gpx_offline + status + 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 + report_error "You must make your edits public to upload new data", :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 + # 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 + # TODO: some sort of escaping of problem characters in the message + response.headers["Error"] = message + + if request.headers["X-Error-Format"] && + request.headers["X-Error-Format"].downcase == "xml" + result = OSM::API.new.get_xml_doc + result.root.name = "osmError" + result.root << (XML::Node.new("status") << "#{Rack::Utils.status_code(status)} #{Rack::Utils::HTTP_STATUS_CODES[status]}") + result.root << (XML::Node.new("message") << message) + + render :text => result.to_s, :content_type => "text/xml" + else + render :text => message, :status => status, :content_type => "text/plain" + end end - + def set_locale - response.header['Vary'] = 'Accept-Language' + response.header["Vary"] = "Accept-Language" - if @user - if !@user.languages.empty? - request.user_preferred_languages = @user.languages - response.header['Vary'] = '*' - elsif !request.user_preferred_languages.empty? - @user.languages = request.user_preferred_languages - @user.save - end + if @user && !@user.languages.empty? + http_accept_language.user_preferred_languages = @user.languages + response.header["Vary"] = "*" end - I18n.locale = request.compatible_language_from(I18n.available_locales) + I18n.locale = select_locale + + if @user && @user.languages.empty? && !http_accept_language.user_preferred_languages.empty? + @user.languages = http_accept_language.user_preferred_languages + @user.save + end - response.headers['Content-Language'] = I18n.locale.to_s + response.headers["Content-Language"] = I18n.locale.to_s 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 - logger.info("API threw unexpected #{ex.class} exception: #{ex.message}") - ex.backtrace.each { |l| logger.info(l) } - report_error "#{ex.class}: #{ex.message}", :internal_server_error + def select_locale(locales = I18n.available_locales) + if params[:locale] + http_accept_language.user_preferred_languages = [params[:locale]] end + + if http_accept_language.compatible_language_from(locales).nil? + http_accept_language.user_preferred_languages = http_accept_language.user_preferred_languages.collect do |pl| + pls = [pl] + + while pl.match(/^(.*)-[^-]+$/) + pls.push($1) if locales.include?($1) || locales.include?($1.to_sym) + pl = $1 + end + + pls + end.flatten + end + + http_accept_language.compatible_language_from(locales) || I18n.default_locale + end + + helper_method :select_locale + + def api_call_handle_error + yield + rescue ActiveRecord::RecordNotFound => ex + render :text => "", :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 AbstractController::ActionNotFound => ex + raise + rescue StandardError => ex + logger.info("API threw unexpected #{ex.class} exception: #{ex.message}") + ex.backtrace.each { |l| logger.info(l) } + report_error "#{ex.class}: #{ex.message}", :internal_server_error end ## @@ -185,30 +354,125 @@ class ApplicationController < ActionController::Base # 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 + fail OSM::APIBadMethodError.new(method) unless ok end + ## + # wrap an api call in a timeout def api_call_timeout - Timeout::timeout(APP_CONFIG['api_timeout'], OSM::APITimeoutError) do + OSM::Timer.timeout(API_TIMEOUT) do yield end + rescue Timeout::Error + raise OSM::APITimeoutError + end + + ## + # wrap a web page in a timeout + def web_timeout + OSM::Timer.timeout(WEB_TIMEOUT) do + yield + end + rescue ActionView::Template::Error => ex + ex = ex.original_exception + + if ex.is_a?(ActiveRecord::StatementInvalid) && ex.message =~ /execution expired/ + ex = Timeout::Error.new + end + + if ex.is_a?(Timeout::Error) + render :action => "timeout" + else + raise + end + rescue Timeout::Error + render :action => "timeout" + end + + ## + # ensure that there is a "this_user" instance variable + def lookup_this_user + unless @this_user = User.active.find_by_display_name(params[:display_name]) + render_unknown_user params[:display_name] + end + end + + ## + # render a "no such user" page + def render_unknown_user(name) + @title = t "user.no_such_user.title" + @not_found_user = name + + respond_to do |format| + format.html { render :template => "user/no_such_user", :status => :not_found } + format.all { render :text => "", :status => :not_found } + end + end + + ## + # Unfortunately if a PUT or POST request that has a body fails to + # read it then Apache will sometimes fail to return the response it + # is given to the client properly, instead erroring: + # + # https://issues.apache.org/bugzilla/show_bug.cgi?id=44782 + # + # To work round this we call rewind on the body here, which is added + # as a filter, to force it to be fetched from Apache into a file. + def fetch_body + request.body.rewind + end + + def map_layout + request.xhr? ? "xhr" : "map" end -private + def preferred_editor + editor = if params[:editor] + params[:editor] + elsif @user && @user.preferred_editor + @user.preferred_editor + else + DEFAULT_EDITOR + end + + if request.env["HTTP_USER_AGENT"] =~ /MSIE|Trident/ && editor == "id" + editor = "potlatch2" + end + + editor + end + + helper_method :preferred_editor + + 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 + def get_auth_data + if request.env.key? "X-HTTP_AUTHORIZATION" # where mod_rewrite might have put it + authdata = request.env["X-HTTP_AUTHORIZATION"].to_s.split + elsif request.env.key? "REDIRECT_X_HTTP_AUTHORIZATION" # mod_fcgi + authdata = request.env["REDIRECT_X_HTTP_AUTHORIZATION"].to_s.split + elsif request.env.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 + if authdata && authdata[0] == "Basic" + user, pass = Base64.decode64(authdata[1]).split(":", 2) + end + [user, pass] + end + + # used by oauth plugin to get the current user + def current_user + @user + end + # used by oauth plugin to set the current user + def current_user=(user) + @user = user + end + + # override to stop oauth plugin sending errors + def invalid_oauth_response + end end