class ApiController < ApplicationController
skip_before_action :verify_authenticity_token
- before_action :check_api_readable, :except => [:capabilities]
- before_action :setup_user_auth, :only => [:permissions]
- around_action :api_call_handle_error, :api_call_timeout
-
- # Get an XML response containing a list of tracepoints that have been uploaded
- # within the specified bounding box, and in the specified page.
- def trackpoints
- # retrieve the page number
- page = params["page"].to_s.to_i
-
- unless page >= 0
- report_error("Page number must be greater than or equal to 0")
- return
- end
-
- offset = page * TRACEPOINTS_PER_PAGE
-
- # Figure out the bbox
- # check boundary is sane and area within defined
- # see /config/application.yml
- begin
- bbox = BoundingBox.from_bbox_params(params)
- bbox.check_boundaries
- bbox.check_size
- rescue StandardError => err
- report_error(err.message)
- return
- end
-
- # get all the points
- points = Tracepoint.bbox(bbox).offset(offset).limit(TRACEPOINTS_PER_PAGE).order("gpx_id DESC, trackid ASC, timestamp ASC")
-
- doc = XML::Document.new
- doc.encoding = XML::Encoding::UTF_8
- root = XML::Node.new "gpx"
- root["version"] = "1.0"
- root["creator"] = "OpenStreetMap.org"
- root["xmlns"] = "http://www.topografix.com/GPX/1/0"
-
- doc.root = root
-
- # initialise these variables outside of the loop so that they
- # stay in scope and don't get free'd up by the GC during the
- # loop.
- gpx_id = -1
- trackid = -1
- track = nil
- trkseg = nil
- anon_track = nil
- anon_trkseg = nil
- gpx_file = nil
- timestamps = false
-
- points.each do |point|
- if gpx_id != point.gpx_id
- gpx_id = point.gpx_id
- trackid = -1
- gpx_file = Trace.find(gpx_id)
-
- if gpx_file.trackable?
- track = XML::Node.new "trk"
- doc.root << track
- timestamps = true
-
- if gpx_file.identifiable?
- track << (XML::Node.new("name") << gpx_file.name)
- track << (XML::Node.new("desc") << gpx_file.description)
- track << (XML::Node.new("url") << url_for(:controller => "traces", :action => "show", :display_name => gpx_file.user.display_name, :id => gpx_file.id))
- end
- else
- # use the anonymous track segment if the user hasn't allowed
- # their GPX points to be tracked.
- timestamps = false
- if anon_track.nil?
- anon_track = XML::Node.new "trk"
- doc.root << anon_track
- end
- track = anon_track
- end
- end
-
- if trackid != point.trackid
- if gpx_file.trackable?
- trkseg = XML::Node.new "trkseg"
- track << trkseg
- trackid = point.trackid
- else
- if anon_trkseg.nil?
- anon_trkseg = XML::Node.new "trkseg"
- anon_track << anon_trkseg
- end
- trkseg = anon_trkseg
- end
- end
-
- trkseg << point.to_xml_node(timestamps)
- end
+ before_action :api_deny_access_handler
- response.headers["Content-Disposition"] = "attachment; filename=\"tracks.gpx\""
+ authorize_resource :class => false
- render :xml => doc.to_s
- end
+ before_action :check_api_readable
+ around_action :api_call_handle_error, :api_call_timeout
# This is probably the most common call of all. It is used for getting the
# OSM data for a specified bounding box, usually for editing. First the
render :xml => doc.to_s
end
-
- # Get a list of the tiles that have changed within a specified time
- # period
- def changes
- zoom = (params[:zoom] || "12").to_i
-
- if params.include?(:start) && params.include?(:end)
- starttime = Time.parse(params[:start])
- endtime = Time.parse(params[:end])
- else
- hours = (params[:hours] || "1").to_i.hours
- endtime = Time.now.getutc
- starttime = endtime - hours
- end
-
- if zoom >= 1 && zoom <= 16 &&
- endtime > starttime && endtime - starttime <= 24.hours
- mask = (1 << zoom) - 1
-
- tiles = Node.where(:timestamp => starttime..endtime).group("maptile_for_point(latitude, longitude, #{zoom})").count
-
- doc = OSM::API.new.get_xml_doc
- changes = XML::Node.new "changes"
- changes["starttime"] = starttime.xmlschema
- changes["endtime"] = endtime.xmlschema
-
- tiles.each do |tile, count|
- x = (tile.to_i >> zoom) & mask
- y = tile.to_i & mask
-
- t = XML::Node.new "tile"
- t["x"] = x.to_s
- t["y"] = y.to_s
- t["z"] = zoom.to_s
- t["changes"] = count.to_s
-
- changes << t
- end
-
- doc.root << changes
-
- render :xml => doc.to_s
- else
- render :plain => "Requested zoom is invalid, or the supplied start is after the end time, or the start duration is more than 24 hours", :status => :bad_request
- end
- end
-
- # External apps that use the api are able to query the api to find out some
- # parameters of the API. It currently returns:
- # * minimum and maximum API versions that can be used.
- # * maximum area that can be requested in a bbox request in square degrees
- # * number of tracepoints that are returned in each tracepoints page
- def capabilities
- doc = OSM::API.new.get_xml_doc
-
- api = XML::Node.new "api"
- version = XML::Node.new "version"
- version["minimum"] = API_VERSION.to_s
- version["maximum"] = API_VERSION.to_s
- api << version
- area = XML::Node.new "area"
- area["maximum"] = MAX_REQUEST_AREA.to_s
- api << area
- notearea = XML::Node.new "note_area"
- notearea["maximum"] = MAX_NOTE_REQUEST_AREA.to_s
- api << notearea
- tracepoints = XML::Node.new "tracepoints"
- tracepoints["per_page"] = TRACEPOINTS_PER_PAGE.to_s
- api << tracepoints
- waynodes = XML::Node.new "waynodes"
- waynodes["maximum"] = MAX_NUMBER_OF_WAY_NODES.to_s
- api << waynodes
- changesets = XML::Node.new "changesets"
- changesets["maximum_elements"] = Changeset::MAX_ELEMENTS.to_s
- api << changesets
- timeout = XML::Node.new "timeout"
- timeout["seconds"] = API_TIMEOUT.to_s
- api << timeout
- status = XML::Node.new "status"
- status["database"] = database_status.to_s
- status["api"] = api_status.to_s
- status["gpx"] = gpx_status.to_s
- api << status
- doc.root << api
- policy = XML::Node.new "policy"
- blacklist = XML::Node.new "imagery"
- IMAGERY_BLACKLIST.each do |url_regex|
- xnd = XML::Node.new "blacklist"
- xnd["regex"] = url_regex.to_s
- blacklist << xnd
- end
- policy << blacklist
- doc.root << policy
-
- render :xml => doc.to_s
- end
-
- # External apps that use the api are able to query which permissions
- # they have. This currently returns a list of permissions granted to the current user:
- # * if authenticated via OAuth, this list will contain all permissions granted by the user to the access_token.
- # * if authenticated via basic auth all permissions are granted, so the list will contain all permissions.
- # * unauthenticated users have no permissions, so the list will be empty.
- def permissions
- @permissions = if current_token.present?
- ClientApplication.all_permissions.select { |p| current_token.read_attribute(p) }
- elsif current_user
- ClientApplication.all_permissions
- else
- []
- end
- end
end
projects / rails.git / blobdiff