X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/8ae5d94b2f16d6f2cf1739e19ebc3793a18a0a4a..190d0fddfcaa3483b6be2c1d0f24ebbf6cdd3fdc:/app/controllers/changeset_controller.rb diff --git a/app/controllers/changeset_controller.rb b/app/controllers/changeset_controller.rb index 51d0049a7..735fa73a8 100644 --- a/app/controllers/changeset_controller.rb +++ b/app/controllers/changeset_controller.rb @@ -4,20 +4,18 @@ class ChangesetController < ApplicationController layout 'site' require 'xml/libxml' - before_filter :authorize_web, :only => [:list] - before_filter :set_locale, :only => [:list] + skip_before_filter :verify_authenticity_token, :except => [:list] + before_filter :authorize_web, :only => [:list, :feed] + before_filter :set_locale, :only => [:list, :feed] 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) } + before_filter :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list, :feed] + before_filter(:only => [:list, :feed]) { |c| c.check_database_readable(true) } after_filter :compress_output - around_filter :api_call_handle_error, :except => [:list] - around_filter :web_timeout, :only => [:list] - - # Help methods for checking boundary sanity and area size - include MapBoundary + around_filter :api_call_handle_error, :except => [:list, :feed] + around_filter :web_timeout, :only => [:list, :feed] # Helper methods for checking consistency include ConsistencyValidations @@ -35,29 +33,29 @@ class ChangesetController < ApplicationController 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" 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 ## @@ -72,11 +70,11 @@ class ChangesetController < ApplicationController cs = Changeset.find(params[:id]) check_changeset_consistency(cs, @user) - + # keep an array of lons and lats lon = Array.new lat = Array.new - + # 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 @@ -84,17 +82,17 @@ class ChangesetController < ApplicationController 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 = + cs.min_lon, cs.min_lat, cs.max_lon, cs.max_lat = lon.min, lat.min, lon.max, lat.max - + # save the larger bounding box and return the changeset, which # will include the bigger bounding box. cs.save! @@ -111,7 +109,7 @@ class ChangesetController < ApplicationController # 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 @@ -122,7 +120,7 @@ class ChangesetController < ApplicationController 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 @@ -134,60 +132,61 @@ class ChangesetController < ApplicationController # 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| + 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) else - # get the previous version from the element history - prev_elt = elt.class.where(:id => elt.id, :version => elt.version).first unless elt.visible - # if the element isn't visible then it must have been deleted, so - # output the *previous* XML + # if the element isn't visible then it must have been deleted deleted = XML::Node.new "delete" - deleted << prev_elt.to_xml_node + deleted << elt.to_xml_node(changeset_cache, user_display_name_cache) else - # must be a modify, for which we don't need the previous version - # yet... + # must be a modify modified = XML::Node.new "modify" - modified << elt.to_xml_node + modified << elt.to_xml_node(changeset_cache, user_display_name_cache) end end end @@ -198,14 +197,20 @@ class ChangesetController < ApplicationController ## # 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 + # create the conditions that the user asked for. some or all of # these may be nil. - changesets = Changeset.scoped - changesets = conditions_bbox(changesets, params['bbox']) + 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_ids(changesets, params['changesets']) # create the results document results = OSM::API.new.get_xml_doc @@ -217,7 +222,7 @@ class ChangesetController < ApplicationController 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. @@ -238,100 +243,84 @@ class ChangesetController < ApplicationController changeset.update_from(new_changeset, @user) render :text => changeset.to_xml, :mime_type => "text/xml" else - - render :nothing => true, :status => :bad_request + + render :text => "", :status => :bad_request end 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 + if request.format == :atom and params[:max_id] + redirect_to 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 || !user.active? + render_unknown_user params[:display_name] + return + end + end + + if (params[:friends] || params[:nearby]) && !@user && request.format == :html + require_user + return + end + + if request.format == :html and !params[:list] + require_oauth + render :action => :history, :layout => map_layout else - changesets = conditions_nonempty(Changeset.scoped) + changesets = conditions_nonempty(Changeset.all) 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 + if user.data_public? or user == @user + changesets = changesets.where(:user_id => user.id) + else + changesets = 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.public) + elsif params[:nearby] && @user + changesets = changesets.where(:user_id => @user.nearby) end - - if params[:bbox] - bbox = params[:bbox] - elsif params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat] - bbox = params[:minlon] + ',' + params[:minlat] + ',' + params[:maxlon] + ',' + params[:maxlat] - end - - if bbox - changesets = conditions_bbox(changesets, bbox) - bbox = BoundingBox.from_s(bbox) - bbox_link = render_to_string :partial => "bbox", :object => bbox - end - - if user - user_link = render_to_string :partial => "user", :object => user - 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) - @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 end + ## + # list edits as an atom feed + def feed + list + end + private #------------------------------------------------------------ # utility functions below. - #------------------------------------------------------------ + #------------------------------------------------------------ ## - # if a bounding box was specified then parse it and do some sanity - # checks. this is mostly the same as the map call, but without the - # area restriction. + # 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) - unless bbox.nil? - raise OSM::APIBadUserInput.new("Bounding box should be min_lon,min_lat,max_lon,max_lat") unless bbox.count(',') == 3 - bbox = sanitise_boundaries(bbox.split(/,/)) - raise OSM::APIBadUserInput.new("Minimum longitude should be less than maximum.") unless bbox[0] <= bbox[2] - raise OSM::APIBadUserInput.new("Minimum latitude should be less than maximum.") unless bbox[1] <= bbox[3] + if bbox + bbox.check_boundaries + bbox = bbox.to_scaled return changesets.where("min_lon < ? and max_lon > ? and min_lat < ? and max_lat > ?", - (bbox[2] * GeoRecord::SCALE).to_i, - (bbox[0] * GeoRecord::SCALE).to_i, - (bbox[3] * GeoRecord::SCALE).to_i, - (bbox[1] * GeoRecord::SCALE).to_i) + bbox.max_lon.to_i, bbox.min_lon.to_i, + bbox.max_lat.to_i, bbox.min_lat.to_i) else return changesets end @@ -356,13 +345,13 @@ private # 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 end return changesets.where(:user_id => u.id) @@ -373,14 +362,14 @@ private ## # restrict changes to those closed during a particular time period - def conditions_time(changesets, time) + def conditions_time(changesets, time) unless time.nil? - # if there is a range, i.e: comma separated, then the first is + # 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 + 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) @@ -408,11 +397,11 @@ private 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) @@ -420,16 +409,30 @@ private 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 { |n| n.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") end - + end