131 lines
4.5 KiB
Ruby
131 lines
4.5 KiB
Ruby
class ApiController < ApplicationController
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skip_before_action :verify_authenticity_token
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private
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##
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# Set allowed request formats if no explicit format has been
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# requested via a URL suffix. Allowed formats are taken from
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# any HTTP Accept header with XML as the default.
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def set_request_formats
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unless params[:format]
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accept_header = request.headers["HTTP_ACCEPT"]
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if accept_header
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# Some clients (such asJOSM) send Accept headers which cannot be
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# parse by Rails, for example:
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#
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# Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
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#
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# where both "*" and ".2" as a quality do not adhere to the syntax
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# described in RFC 7231, section 5.3.1, etc.
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#
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# As a workaround, and for back compatibility, default to XML format.
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mimetypes = begin
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Mime::Type.parse(accept_header)
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rescue Mime::Type::InvalidMimeType
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Array(Mime[:xml])
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end
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# Allow XML and JSON formats, and treat an all formats wildcard
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# as XML for backwards compatibility - all other formats are discarded
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# which will result in a 406 Not Acceptable response being sent
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formats = mimetypes.map do |mime|
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if mime.symbol == :xml then :xml
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elsif mime.symbol == :json then :json
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elsif mime == "*/*" then :xml
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end
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end
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else
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# Default to XML if no accept header was sent - this includes
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# the unit tests which don't set one by default
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formats = Array(:xml)
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end
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request.formats = formats.compact
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end
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end
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def authorize(realm = "Web Password", errormessage = "Couldn't authenticate you")
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# make the current_user object from any auth sources we have
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setup_user_auth
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# handle authenticate pass/fail
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unless current_user
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# no auth, the user does not exist or the password was wrong
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response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
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render :plain => errormessage, :status => :unauthorized
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false
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end
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end
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def current_ability
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# Use capabilities from the oauth token if it exists and is a valid access token
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if Authenticator.new(self, [:token]).allow?
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ApiAbility.new(nil).merge(ApiCapability.new(current_token))
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else
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ApiAbility.new(current_user)
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end
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end
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def deny_access(_exception)
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if current_token
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set_locale
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report_error t("oauth.permissions.missing"), :forbidden
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elsif current_user
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head :forbidden
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else
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realm = "Web Password"
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errormessage = "Couldn't authenticate you"
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response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
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render :plain => errormessage, :status => :unauthorized
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end
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end
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def gpx_status
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status = database_status
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status = "offline" if status == "online" && Settings.status == "gpx_offline"
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status
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end
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##
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# sets up the current_user for use by other methods. this is mostly called
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# from the authorize method, but can be called elsewhere if authorisation
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# is optional.
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def setup_user_auth
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# try and setup using OAuth
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unless Authenticator.new(self, [:token]).allow?
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username, passwd = get_auth_data # parse from headers
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# authenticate per-scheme
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self.current_user = if username.nil?
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nil # no authentication provided - perhaps first connect (client should retry after 401)
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elsif username == "token"
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User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
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else
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User.authenticate(:username => username, :password => passwd) # basic auth
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end
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end
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# have we identified the user?
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if current_user
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# check if the user has been banned
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user_block = current_user.blocks.active.take
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unless user_block.nil?
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set_locale
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if user_block.zero_hour?
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report_error t("application.setup_user_auth.blocked_zero_hour"), :forbidden
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else
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report_error t("application.setup_user_auth.blocked"), :forbidden
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end
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end
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# if the user hasn't seen the contributor terms then don't
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# allow editing - they have to go to the web site and see
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# (but can decline) the CTs to continue.
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if !current_user.terms_seen && flash[:skip_terms].nil?
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set_locale
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report_error t("application.setup_user_auth.need_to_see_terms"), :forbidden
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end
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end
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end
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end
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