class ApiController < ApplicationController
skip_before_action :verify_authenticity_token
+ private
+
+ ##
+ # Set default request format to xml unless a client requests a specific format,
+ # which can be done via (a) URL suffix and/or (b) HTTP Accept header, where
+ # the URL suffix always takes precedence over the Accept header.
+ def set_default_request_format
+ unless params[:format]
+ accept_header = request.headers["HTTP_ACCEPT"]
+ if accept_header.nil?
+ # e.g. unit tests don't set an Accept: header by default, force XML in this case
+ request.format = "xml"
+ return
+ end
+
+ req_mimetypes = []
+
+ # Some clients (JOSM) send Accept headers which cannot be parsed by Rails, example: *; q=.2
+ # To be fair, JOSM's Accept header doesn't adhere to RFC 7231, section 5.3.1, et al. either
+ # As a workaround for backwards compatibility, we're assuming XML format
+ begin
+ req_mimetypes = Mime::Type.parse(accept_header)
+ rescue Mime::Type::InvalidMimeType
+ request.format = "xml"
+ return
+ end
+
+ # req_mimetypes contains all Accept header MIME types with descending priority
+ req_mimetypes.each do |mime|
+ if mime.symbol == :xml
+ request.format = "xml"
+ break
+ end
+
+ if mime.symbol == :json
+ request.format = "json"
+ break
+ end
+
+ # Any format, not explicitly requesting XML or JSON -> assume XML as default
+ if mime == "*/*"
+ request.format = "xml"
+ break
+ end
+
+ # In case the client requests some other format besides XML, JSON and */*,
+ # we deliberately don't set request.format. The framework will return an
+ # ActionController::UnknownFormat error to the client later on in this case.
+ end
+ end
+ end
+
def authorize(realm = "Web Password", errormessage = "Couldn't authenticate you")
# make the current_user object from any auth sources we have
setup_user_auth
# no auth, the user does not exist or the password was wrong
response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
render :plain => errormessage, :status => :unauthorized
- return false
+ false
+ end
+ end
+
+ def current_ability
+ # Use capabilities from the oauth token if it exists and is a valid access token
+ if Authenticator.new(self, [:token]).allow?
+ ApiAbility.new(nil).merge(ApiCapability.new(current_token))
+ else
+ ApiAbility.new(current_user)
end
end
render :plain => errormessage, :status => :unauthorized
end
end
+
+ def gpx_status
+ status = database_status
+ status = "offline" if status == "online" && Settings.status == "gpx_offline"
+ status
+ end
+
+ ##
+ # sets up the current_user 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
+ unless Authenticator.new(self, [:token]).allow?
+ username, passwd = get_auth_data # parse from headers
+ # authenticate per-scheme
+ self.current_user = if username.nil?
+ nil # no authentication provided - perhaps first connect (client should retry after 401)
+ elsif username == "token"
+ User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+ else
+ User.authenticate(:username => username, :password => passwd) # basic auth
+ end
+ end
+
+ # have we identified the user?
+ if current_user
+ # check if the user has been banned
+ user_block = current_user.blocks.active.take
+ unless user_block.nil?
+ set_locale
+ if user_block.zero_hour?
+ report_error t("application.setup_user_auth.blocked_zero_hour"), :forbidden
+ else
+ report_error t("application.setup_user_auth.blocked"), :forbidden
+ end
+ 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 !current_user.terms_seen && flash[:skip_terms].nil?
+ set_locale
+ report_error t("application.setup_user_auth.need_to_see_terms"), :forbidden
+ end
+ end
+ end
end