# The ChangesetController is the RESTful interface to Changeset objects
class ChangesetController < ApplicationController
- layout 'site'
- require 'xml/libxml'
-
- skip_before_filter :verify_authenticity_token, :except => [:list]
- before_filter :authorize_web, :only => [:list]
- before_filter :set_locale, :only => [:list]
- before_filter :authorize, :only => [:create, :update, :delete, :upload, :include, :close]
- before_filter :require_allow_write_api, :only => [:create, :update, :delete, :upload, :include, :close]
- before_filter :require_public_data, :only => [:create, :update, :delete, :upload, :include, :close]
- before_filter :check_api_writable, :only => [:create, :update, :delete, :upload, :include]
- before_filter :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list]
- before_filter(:only => [:list]) { |c| c.check_database_readable(true) }
- after_filter :compress_output
- around_filter :api_call_handle_error, :except => [:list]
- around_filter :web_timeout, :only => [:list]
+ layout "site"
+ require "xml/libxml"
+
+ skip_before_action :verify_authenticity_token, :except => [:list]
+ before_action :authorize_web, :only => [:list, :feed, :comments_feed]
+ before_action :set_locale, :only => [:list, :feed, :comments_feed]
+ before_action :authorize, :only => [:create, :update, :delete, :upload, :include, :close, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
+ before_action :require_moderator, :only => [:hide_comment, :unhide_comment]
+ before_action :require_allow_write_api, :only => [:create, :update, :delete, :upload, :include, :close, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
+ before_action :require_public_data, :only => [:create, :update, :delete, :upload, :include, :close, :comment, :subscribe, :unsubscribe]
+ before_action :check_api_writable, :only => [:create, :update, :delete, :upload, :include, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
+ before_action :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list, :feed, :comment, :subscribe, :unsubscribe, :comments_feed]
+ before_action(:only => [:list, :feed, :comments_feed]) { |c| c.check_database_readable(true) }
+ around_action :api_call_handle_error, :except => [:list, :feed, :comments_feed]
+ around_action :api_call_timeout, :except => [:list, :feed, :comments_feed, :upload]
+ around_action :web_timeout, :only => [:list, :feed, :comments_feed]
# Helper methods for checking consistency
include ConsistencyValidations
# Assume that Changeset.from_xml has thrown an exception if there is an error parsing the xml
cs.user_id = @user.id
cs.save_with_tags!
+
+ # Subscribe user to changeset comments
+ cs.subscribers << @user
+
render :text => cs.id.to_s, :content_type => "text/plain"
end
##
- # Return XML giving the basic info about the changeset. Does not
+ # Return XML giving the basic info about the changeset. Does not
# return anything about the nodes, ways and relations in the changeset.
def read
changeset = Changeset.find(params[:id])
- render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+
+ render :text => changeset.to_xml(params[:include_discussion].presence).to_s, :content_type => "text/xml"
end
-
+
##
# marks a changeset as closed. this may be called multiple times
# on the same changeset, so is idempotent.
- def close
+ def close
assert_method :put
-
- changeset = Changeset.find(params[:id])
+
+ changeset = Changeset.find(params[:id])
check_changeset_consistency(changeset, @user)
# to close the changeset, we'll just set its closed_at time to
- # now. this might not be enough if there are concurrency issues,
+ # now. this might not be enough if there are concurrency issues,
# but we'll have to wait and see.
changeset.set_closed_time_now
changeset.save!
- render :nothing => true
+ render :text => ""
end
##
cs = Changeset.find(params[:id])
check_changeset_consistency(cs, @user)
-
+
# keep an array of lons and lats
- lon = Array.new
- lat = Array.new
-
+ 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).parse
doc.find("//osm/node").each do |n|
- lon << n['lon'].to_f * GeoRecord::SCALE
- lat << n['lat'].to_f * GeoRecord::SCALE
+ 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, cs.min_lat, cs.max_lon, cs.max_lat =
- lon.min, lat.min, lon.max, lat.max
-
+ 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!
# Furthermore, each element in the diff can only reference the current
# changeset.
#
- # Returns: a diffResult document, as described in
+ # Returns: a diffResult document, as described in
# http://wiki.openstreetmap.org/wiki/OSM_Protocol_Version_0.6
def upload
# only allow POST requests, as the upload method is most definitely
changeset = Changeset.find(params[:id])
check_changeset_consistency(changeset, @user)
-
+
diff_reader = DiffReader.new(request.raw_post, changeset)
Changeset.transaction do
result = diff_reader.commit
# download the changeset as an osmChange document.
#
# to make it easier to revert diffs it would be better if the osmChange
- # format were reversible, i.e: contained both old and new versions of
+ # format were reversible, i.e: contained both old and new versions of
# modified elements. but it doesn't at the moment...
#
# this method cannot order the database changes fully (i.e: timestamp and
# version number may be too coarse) so the resulting diff may not apply
- # to a different database. however since changesets are not atomic this
+ # to a different database. however since changesets are not atomic this
# behaviour cannot be guaranteed anyway and is the result of a design
# choice.
def download
changeset = Changeset.find(params[:id])
-
- # get all the elements in the changeset and stick them in a big array.
- elements = [changeset.old_nodes,
- changeset.old_ways,
- changeset.old_relations].flatten
-
- # sort the elements by timestamp and version number, as this is the
- # almost sensible ordering available. this would be much nicer if
- # global (SVN-style) versioning were used - then that would be
+
+ # get all the elements in the changeset which haven't been redacted
+ # and stick them in a big array.
+ elements = [changeset.old_nodes.unredacted,
+ changeset.old_ways.unredacted,
+ changeset.old_relations.unredacted].flatten
+
+ # sort the elements by timestamp and version number, as this is the
+ # almost sensible ordering available. this would be much nicer if
+ # global (SVN-style) versioning were used - then that would be
# unambiguous.
- elements.sort! do |a, b|
- if (a.timestamp == b.timestamp)
+ elements.sort! do |a, b|
+ if a.timestamp == b.timestamp
a.version <=> b.version
else
- a.timestamp <=> b.timestamp
+ a.timestamp <=> b.timestamp
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
+ # at the history because it is simpler - but it would be more correct to
# check these assertions.
elements.each do |elt|
result.root <<
- if (elt.version == 1)
+ if elt.version == 1
# first version, so it must be newly-created.
created = XML::Node.new "create"
- created << elt.to_xml_node
+ 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
- # get the previous version from the element history
- prev_elt = elt.class.find([elt.id, elt.version])
- unless elt.visible
- # if the element isn't visible then it must have been deleted, so
- # output the *previous* XML
- deleted = XML::Node.new "delete"
- deleted << prev_elt.to_xml_node
- else
- # must be a modify, for which we don't need the previous version
- # yet...
- modified = XML::Node.new "modify"
- modified << elt.to_xml_node
- end
+ # 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
end
# query changesets by bounding box, time, user or open/closed status.
def query
# find any bounding box
- if params['bbox']
- bbox = BoundingBox.from_bbox_params(params)
- end
+ bbox = BoundingBox.from_bbox_params(params) if params["bbox"]
# create the conditions that the user asked for. some or all of
# these may be nil.
- changesets = Changeset.scoped
+ changesets = Changeset.all
changesets = conditions_bbox(changesets, bbox)
- changesets = conditions_user(changesets, params['user'], params['display_name'])
- changesets = conditions_time(changesets, params['time'])
- changesets = conditions_open(changesets, params['open'])
- changesets = conditions_closed(changesets, params['closed'])
+ changesets = conditions_user(changesets, params["user"], params["display_name"])
+ changesets = conditions_time(changesets, params["time"])
+ changesets = conditions_open(changesets, params["open"])
+ changesets = conditions_closed(changesets, params["closed"])
+ changesets = conditions_ids(changesets, params["changesets"])
# create the results document
results = OSM::API.new.get_xml_doc
render :text => results.to_s, :content_type => "text/xml"
end
-
+
##
# updates a changeset's tags. none of the changeset's attributes are
# user-modifiable, so they will be ignored.
changeset = Changeset.find(params[:id])
new_changeset = Changeset.from_xml(request.raw_post)
- unless new_changeset.nil?
- check_changeset_consistency(changeset, @user)
- changeset.update_from(new_changeset, @user)
- render :text => changeset.to_xml, :mime_type => "text/xml"
- else
-
- render :nothing => true, :status => :bad_request
- end
+ check_changeset_consistency(changeset, @user)
+ changeset.update_from(new_changeset, @user)
+ render :text => changeset.to_xml, :mime_type => "text/xml"
end
##
# list edits (open changesets) in reverse chronological order
def list
- if request.format == :atom and params[:page]
- redirect_to params.merge({ :page => nil }), :status => :moved_permanently
- else
- changesets = conditions_nonempty(Changeset.scoped)
+ if request.format == :atom && params[:max_id]
+ redirect_to url_for(params.merge(:max_id => nil)), :status => :moved_permanently
+ return
+ end
- if params[:display_name]
- user = User.find_by_display_name(params[:display_name])
-
- if user and user.active?
- if user.data_public? or user == @user
- changesets = changesets.where(:user_id => user.id)
- else
- changesets = changesets.where("false")
- end
- elsif request.format == :html
- @title = t 'user.no_such_user.title'
- @not_found_user = params[:display_name]
- render :template => 'user/no_such_user', :status => :not_found
- return
- end
+ if params[:display_name]
+ user = User.find_by_display_name(params[:display_name])
+ if !user || !user.active?
+ render_unknown_user params[:display_name]
+ return
end
+ end
- if params[:bbox]
- bbox = BoundingBox.from_bbox_params(params)
- elsif params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat]
- bbox = BoundingBox.from_lon_lat_params(params)
- end
+ if (params[:friends] || params[:nearby]) && !@user
+ require_user
+ return
+ end
- if bbox
- changesets = conditions_bbox(changesets, bbox)
- bbox_link = render_to_string :partial => "bbox", :object => bbox
- end
-
- if user
- user_link = render_to_string :partial => "user", :object => user
+ if request.format == :html && !params[:list]
+ require_oauth
+ render :action => :history, :layout => map_layout
+ else
+ changesets = conditions_nonempty(Changeset.all)
+
+ if params[:display_name]
+ changesets = if user.data_public? || user == @user
+ changesets.where(:user_id => user.id)
+ else
+ changesets.where("false")
+ end
+ elsif params[:bbox]
+ changesets = conditions_bbox(changesets, BoundingBox.from_bbox_params(params))
+ elsif params[:friends] && @user
+ changesets = changesets.where(:user_id => @user.friend_users.identifiable)
+ elsif params[:nearby] && @user
+ changesets = changesets.where(:user_id => @user.nearby)
end
-
- if user and bbox
- @title = t 'changeset.list.title_user_bbox', :user => user.display_name, :bbox => bbox.to_s
- @heading = t 'changeset.list.heading_user_bbox', :user => user.display_name, :bbox => bbox.to_s
- @description = t 'changeset.list.description_user_bbox', :user => user_link, :bbox => bbox_link
- elsif user
- @title = t 'changeset.list.title_user', :user => user.display_name
- @heading = t 'changeset.list.heading_user', :user => user.display_name
- @description = t 'changeset.list.description_user', :user => user_link
- elsif bbox
- @title = t 'changeset.list.title_bbox', :bbox => bbox.to_s
- @heading = t 'changeset.list.heading_bbox', :bbox => bbox.to_s
- @description = t 'changeset.list.description_bbox', :bbox => bbox_link
- else
- @title = t 'changeset.list.title'
- @heading = t 'changeset.list.heading'
- @description = t 'changeset.list.description'
+
+ if params[:max_id]
+ changesets = changesets.where("changesets.id <= ?", params[:max_id])
end
- @page = (params[:page] || 1).to_i
- @page_size = 20
+ @edits = changesets.order("changesets.id DESC").limit(20).preload(:user, :changeset_tags, :comments)
- @bbox = bbox
-
- @edits = changesets.order("changesets.created_at DESC").offset((@page - 1) * @page_size).limit(@page_size).preload(:user, :changeset_tags)
+ render :action => :list, :layout => false
end
-
- render :action => :list
end
##
list
end
-private
+ ##
+ # Add a comment to a changeset
+ def comment
+ # Check the arguments are sane
+ raise OSM::APIBadUserInput.new("No id was given") unless params[:id]
+ raise OSM::APIBadUserInput.new("No text was given") if params[:text].blank?
+
+ # Extract the arguments
+ id = params[:id].to_i
+ body = params[:text]
+
+ # Find the changeset and check it is valid
+ changeset = Changeset.find(id)
+ raise OSM::APIChangesetNotYetClosedError.new(changeset) if changeset.is_open?
+
+ # Add a comment to the changeset
+ comment = changeset.comments.create(:changeset => changeset,
+ :body => body,
+ :author => @user)
+
+ # Notify current subscribers of the new comment
+ changeset.subscribers.visible.each do |user|
+ if @user != user
+ Notifier.changeset_comment_notification(comment, user).deliver_now
+ end
+ end
+
+ # Add the commenter to the subscribers if necessary
+ changeset.subscribers << @user unless changeset.subscribers.exists?(@user.id)
+
+ # Return a copy of the updated changeset
+ render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+ end
+
+ ##
+ # Adds a subscriber to the changeset
+ def subscribe
+ # Check the arguments are sane
+ raise OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+ # Extract the arguments
+ id = params[:id].to_i
+
+ # Find the changeset and check it is valid
+ changeset = Changeset.find(id)
+ raise OSM::APIChangesetNotYetClosedError.new(changeset) if changeset.is_open?
+ raise OSM::APIChangesetAlreadySubscribedError.new(changeset) if changeset.subscribers.exists?(@user.id)
+
+ # Add the subscriber
+ changeset.subscribers << @user
+
+ # Return a copy of the updated changeset
+ render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+ end
+
+ ##
+ # Removes a subscriber from the changeset
+ def unsubscribe
+ # Check the arguments are sane
+ raise OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+ # Extract the arguments
+ id = params[:id].to_i
+
+ # Find the changeset and check it is valid
+ changeset = Changeset.find(id)
+ raise OSM::APIChangesetNotYetClosedError.new(changeset) if changeset.is_open?
+ raise OSM::APIChangesetNotSubscribedError.new(changeset) unless changeset.subscribers.exists?(@user.id)
+
+ # Remove the subscriber
+ changeset.subscribers.delete(@user)
+
+ # Return a copy of the updated changeset
+ render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+ end
+
+ ##
+ # Sets visible flag on comment to false
+ def hide_comment
+ # Check the arguments are sane
+ raise OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+ # Extract the arguments
+ id = params[:id].to_i
+
+ # Find the changeset
+ comment = ChangesetComment.find(id)
+
+ # Hide the comment
+ comment.update(:visible => false)
+
+ # Return a copy of the updated changeset
+ render :text => comment.changeset.to_xml.to_s, :content_type => "text/xml"
+ end
+
+ ##
+ # Sets visible flag on comment to true
+ def unhide_comment
+ # Check the arguments are sane
+ raise OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+ # Extract the arguments
+ id = params[:id].to_i
+
+ # Find the changeset
+ comment = ChangesetComment.find(id)
+
+ # Unhide the comment
+ comment.update(:visible => true)
+
+ # Return a copy of the updated changeset
+ render :text => comment.changeset.to_xml.to_s, :content_type => "text/xml"
+ end
+
+ ##
+ # Get a feed of recent changeset comments
+ def comments_feed
+ if params[:id]
+ # Extract the arguments
+ id = params[:id].to_i
+
+ # Find the changeset
+ changeset = Changeset.find(id)
+
+ # Return comments for this changeset only
+ @comments = changeset.comments.includes(:author, :changeset).limit(comments_limit)
+ else
+ # Return comments
+ @comments = ChangesetComment.includes(:author, :changeset).where(:visible => :true).order("created_at DESC").limit(comments_limit).preload(:changeset)
+ end
+
+ # Render the result
+ respond_to do |format|
+ format.rss
+ end
+ rescue OSM::APIBadUserInput
+ render :text => "", :status => :bad_request
+ end
+
+ private
+
#------------------------------------------------------------
# utility functions below.
- #------------------------------------------------------------
+ #------------------------------------------------------------
##
# if a bounding box was specified do some sanity checks.
# restrict changesets to those enclosed by a bounding box
# we need to return both the changesets and the bounding box
def conditions_bbox(changesets, bbox)
- if bbox
+ if bbox
bbox.check_boundaries
bbox = bbox.to_scaled
- return changesets.where("min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?",
- bbox.max_lon.to_i, bbox.min_lon.to_i,
- bbox.max_lat.to_i, bbox.min_lat.to_i)
+
+ changesets.where("min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?",
+ bbox.max_lon.to_i, bbox.min_lon.to_i,
+ bbox.max_lat.to_i, bbox.min_lat.to_i)
else
- return changesets
+ changesets
end
end
##
# restrict changesets to those by a particular user
def conditions_user(changesets, user, name)
- unless user.nil? and name.nil?
+ if user.nil? && name.nil?
+ changesets
+ else
# shouldn't provide both name and UID
- raise OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user and name
+ raise OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user && name
# use either the name or the UID to find the user which we're selecting on.
u = if name.nil?
# make sure we found a user
raise OSM::APINotFoundError.new if u.nil?
- # should be able to get changesets of public users only, or
+ # should be able to get changesets of public users only, or
# our own changesets regardless of public-ness.
unless u.data_public?
# get optional user auth stuff so that users can see their own
# changesets if they're non-public
setup_user_auth
-
- raise OSM::APINotFoundError if @user.nil? or @user.id != u.id
+
+ raise OSM::APINotFoundError if @user.nil? || @user.id != u.id
end
- return changesets.where(:user_id => u.id)
- else
- return changesets
+
+ changesets.where(:user_id => u.id)
end
end
##
# restrict changes to those closed during a particular time period
- def conditions_time(changesets, time)
- unless time.nil?
- # if there is a range, i.e: comma separated, then the first is
+ def conditions_time(changesets, time)
+ if time.nil?
+ return changesets
+ elsif time.count(",") == 1
+ # if there is a range, i.e: comma separated, then the first is
# low, second is high - same as with bounding boxes.
- if time.count(',') == 1
- # check that we actually have 2 elements in the array
- times = time.split(/,/)
- raise OSM::APIBadUserInput.new("bad time range") if times.size != 2
- from, to = times.collect { |t| DateTime.parse(t) }
- return changesets.where("closed_at >= ? and created_at <= ?", from, to)
- else
- # if there is no comma, assume its a lower limit on time
- return changesets.where("closed_at >= ?", DateTime.parse(time))
- end
+ # check that we actually have 2 elements in the array
+ times = time.split(/,/)
+ raise OSM::APIBadUserInput.new("bad time range") if times.size != 2
+
+ from, to = times.collect { |t| DateTime.parse(t) }
+ return changesets.where("closed_at >= ? and created_at <= ?", from, to)
else
- return changesets
+ # if there is no comma, assume its a lower limit on time
+ return changesets.where("closed_at >= ?", DateTime.parse(time))
end
# stupid DateTime seems to throw both of these for bad parsing, so
# we have to catch both and ensure the correct code path is taken.
if open.nil?
return changesets
else
- return changesets.where("closed_at >= ? and num_changes <= ?",
+ return changesets.where("closed_at >= ? and num_changes <= ?",
Time.now.getutc, Changeset::MAX_ELEMENTS)
end
end
-
+
##
# query changesets which are closed
# ('closed at' time has passed or changes limit is hit)
if closed.nil?
return changesets
else
- return changesets.where("closed_at < ? or num_changes > ?",
+ return changesets.where("closed_at < ? or num_changes > ?",
Time.now.getutc, Changeset::MAX_ELEMENTS)
end
end
+ ##
+ # query changesets by a list of ids
+ # (either specified as array or comma-separated string)
+ def conditions_ids(changesets, ids)
+ if ids.nil?
+ return changesets
+ elsif ids.empty?
+ raise OSM::APIBadUserInput.new("No changesets were given to search for")
+ else
+ ids = ids.split(",").collect(&:to_i)
+ return changesets.where(:id => ids)
+ end
+ end
+
##
# eliminate empty changesets (where the bbox has not been set)
# this should be applied to all changeset list displays
def conditions_nonempty(changesets)
- return changesets.where("num_changes > 0")
+ changesets.where("num_changes > 0")
+ end
+
+ ##
+ # Get the maximum number of comments to return
+ def comments_limit
+ if params[:limit]
+ if params[:limit].to_i > 0 && params[:limit].to_i <= 10000
+ params[:limit].to_i
+ else
+ raise OSM::APIBadUserInput.new("Comments limit must be between 1 and 10000")
+ end
+ else
+ 100
+ end
end
-
end
projects / rails.git / blobdiff