# The ChangesetController is the RESTful interface to Changeset objects
module Api
- class ChangesetsController < ApplicationController
- layout "site"
+ class ChangesetsController < ApiController
require "xml/libxml"
- skip_before_action :verify_authenticity_token
+ before_action :check_api_writable, :only => [:create, :update, :upload, :subscribe, :unsubscribe]
+ before_action :check_api_readable, :except => [:create, :update, :upload, :download, :query, :subscribe, :unsubscribe]
before_action :authorize, :only => [:create, :update, :upload, :close, :subscribe, :unsubscribe]
- before_action :api_deny_access_handler, :only => [:create, :update, :upload, :close, :subscribe, :unsubscribe, :expand_bbox]
authorize_resource
before_action :require_public_data, :only => [:create, :update, :upload, :close, :subscribe, :unsubscribe]
- before_action :check_api_writable, :only => [:create, :update, :upload, :subscribe, :unsubscribe]
- before_action :check_api_readable, :except => [:create, :update, :upload, :download, :query, :subscribe, :unsubscribe]
- before_action(:only => [:index, :feed]) { |c| c.check_database_readable(true) }
+ before_action :set_request_formats, :except => [:create, :close, :upload]
+
around_action :api_call_handle_error
around_action :api_call_timeout, :except => [:upload]
# Helper methods for checking consistency
include ConsistencyValidations
+ DEFAULT_QUERY_LIMIT = 100
+ MAX_QUERY_LIMIT = 100
+
+ ##
+ # Return XML giving the basic info about the changeset. Does not
+ # return anything about the nodes, ways and relations in the changeset.
+ def show
+ @changeset = Changeset.find(params[:id])
+ @include_discussion = params[:include_discussion].presence
+ render "changeset"
+
+ respond_to do |format|
+ format.xml
+ format.json
+ end
+ end
+
# Create a changeset from XML.
def create
assert_method :put
- cs = Changeset.from_xml(request.raw_post, true)
+ cs = Changeset.from_xml(request.raw_post, :create => true)
# Assume that Changeset.from_xml has thrown an exception if there is an error parsing the xml
cs.user = current_user
render :plain => cs.id.to_s
end
- ##
- # Return XML giving the basic info about the changeset. Does not
- # return anything about the nodes, ways and relations in the changeset.
- def show
- changeset = Changeset.find(params[:id])
-
- render :xml => changeset.to_xml(params[:include_discussion].presence).to_s
- end
-
##
# marks a changeset as closed. this may be called multiple times
# on the same changeset, so is idempotent.
head :ok
end
- ##
- # insert a (set of) points into a changeset bounding box. this can only
- # increase the size of the bounding box. this is a hint that clients can
- # set either before uploading a large number of changes, or changes that
- # the client (but not the server) knows will affect areas further away.
- def expand_bbox
- # only allow POST requests, because although this method is
- # idempotent, there is no "document" to PUT really...
- assert_method :post
-
- cs = Changeset.find(params[:id])
- check_changeset_consistency(cs, current_user)
-
- # keep an array of lons and lats
- lon = []
- lat = []
-
- # the request is in pseudo-osm format... this is kind-of an
- # abuse, maybe should change to some other format?
- doc = XML::Parser.string(request.raw_post, :options => XML::Parser::Options::NOERROR).parse
- doc.find("//osm/node").each do |n|
- lon << n["lon"].to_f * GeoRecord::SCALE
- lat << n["lat"].to_f * GeoRecord::SCALE
- end
-
- # add the existing bounding box to the lon-lat array
- lon << cs.min_lon unless cs.min_lon.nil?
- lat << cs.min_lat unless cs.min_lat.nil?
- lon << cs.max_lon unless cs.max_lon.nil?
- lat << cs.max_lat unless cs.max_lat.nil?
-
- # collapse the arrays to minimum and maximum
- cs.min_lon = lon.min
- cs.min_lat = lat.min
- cs.max_lon = lon.max
- cs.max_lat = lat.max
-
- # save the larger bounding box and return the changeset, which
- # will include the bigger bounding box.
- cs.save!
- render :xml => cs.to_xml.to_s
- end
-
##
# Upload a diff in a single transaction.
#
end
end
- # create changeset and user caches
- changeset_cache = {}
- user_display_name_cache = {}
-
- # create an osmChange document for the output
- result = OSM::API.new.get_xml_doc
- result.root.name = "osmChange"
-
# generate an output element for each operation. note: we avoid looking
# at the history because it is simpler - but it would be more correct to
# check these assertions.
+ @created = []
+ @modified = []
+ @deleted = []
+
elements.each do |elt|
- result.root <<
- if elt.version == 1
- # first version, so it must be newly-created.
- created = XML::Node.new "create"
- created << elt.to_xml_node(changeset_cache, user_display_name_cache)
- elsif elt.visible
- # must be a modify
- modified = XML::Node.new "modify"
- modified << elt.to_xml_node(changeset_cache, user_display_name_cache)
- else
- # if the element isn't visible then it must have been deleted
- deleted = XML::Node.new "delete"
- deleted << elt.to_xml_node(changeset_cache, user_display_name_cache)
- end
+ if elt.version == 1
+ # first version, so it must be newly-created.
+ @created << elt
+ elsif elt.visible
+ # must be a modify
+ @modified << elt
+ else
+ # if the element isn't visible then it must have been deleted
+ @deleted << elt
+ end
end
- render :xml => result.to_s
+ respond_to do |format|
+ format.xml
+ end
end
##
changesets = conditions_ids(changesets, params["changesets"])
# sort and limit the changesets
- changesets = changesets.order("created_at DESC").limit(100)
-
- # preload users, tags and comments
- changesets = changesets.preload(:user, :changeset_tags, :comments)
+ changesets = changesets.order("created_at DESC").limit(result_limit)
- # create the results document
- results = OSM::API.new.get_xml_doc
+ # preload users, tags and comments, and render result
+ @changesets = changesets.preload(:user, :changeset_tags, :comments)
+ render "changesets"
- # add all matching changesets to the XML results document
- changesets.order("created_at DESC").limit(100).each do |cs|
- results.root << cs.to_xml_node
+ respond_to do |format|
+ format.xml
+ format.json
end
-
- render :xml => results.to_s
end
##
# request *must* be a PUT.
assert_method :put
- changeset = Changeset.find(params[:id])
+ @changeset = Changeset.find(params[:id])
new_changeset = Changeset.from_xml(request.raw_post)
- check_changeset_consistency(changeset, current_user)
- changeset.update_from(new_changeset, current_user)
- render :xml => changeset.to_xml.to_s
+ check_changeset_consistency(@changeset, current_user)
+ @changeset.update_from(new_changeset, current_user)
+ render "changeset"
+
+ respond_to do |format|
+ format.xml
+ format.json
+ end
end
##
changeset.subscribers << current_user
# Return a copy of the updated changeset
- render :xml => changeset.to_xml.to_s
+ @changeset = changeset
+ render "changeset"
+
+ respond_to do |format|
+ format.xml
+ format.json
+ end
end
##
changeset.subscribers.delete(current_user)
# Return a copy of the updated changeset
- render :xml => changeset.to_xml.to_s
+ @changeset = changeset
+ render "changeset"
+
+ respond_to do |format|
+ format.xml
+ format.json
+ end
end
private
# low, second is high - same as with bounding boxes.
# check that we actually have 2 elements in the array
- times = time.split(/,/)
+ times = time.split(",")
raise OSM::APIBadUserInput, "bad time range" if times.size != 2
- from, to = times.collect { |t| Time.parse(t) }
+ from, to = times.collect { |t| Time.parse(t).utc }
changesets.where("closed_at >= ? and created_at <= ?", from, to)
else
# if there is no comma, assume its a lower limit on time
- changesets.where("closed_at >= ?", Time.parse(time))
+ changesets.where("closed_at >= ?", Time.parse(time).utc)
end
# stupid Time seems to throw both of these for bad parsing, so
# we have to catch both and ensure the correct code path is taken.
- rescue ArgumentError => ex
- raise OSM::APIBadUserInput, ex.message.to_s
- rescue RuntimeError => ex
- raise OSM::APIBadUserInput, ex.message.to_s
+ rescue ArgumentError, RuntimeError => e
+ raise OSM::APIBadUserInput, e.message.to_s
end
##
changesets
else
changesets.where("closed_at >= ? and num_changes <= ?",
- Time.now.getutc, Changeset::MAX_ELEMENTS)
+ Time.now.utc, Changeset::MAX_ELEMENTS)
end
end
changesets
else
changesets.where("closed_at < ? or num_changes > ?",
- Time.now.getutc, Changeset::MAX_ELEMENTS)
+ Time.now.utc, Changeset::MAX_ELEMENTS)
end
end
changesets.where(:id => ids)
end
end
+
+ ##
+ # Get the maximum number of results to return
+ def result_limit
+ if params[:limit]
+ if params[:limit].to_i.positive? && params[:limit].to_i <= MAX_QUERY_LIMIT
+ params[:limit].to_i
+ else
+ raise OSM::APIBadUserInput, "Changeset limit must be between 1 and #{MAX_QUERY_LIMIT}"
+ end
+ else
+ DEFAULT_QUERY_LIMIT
+ end
+ end
end
end
projects / rails.git / blobdiff