+ include Potlatch
+
+ skip_before_action :verify_authenticity_token
+ before_action :check_api_writable
+
+ # Main AMF handlers: process the raw AMF string (using AMF library) and
+ # calls each action (private method) accordingly.
+
+ def amf_read
+ self.status = :ok
+ self.content_type = Mime[:amf]
+ self.response_body = Dispatcher.new(request.raw_post) do |message, *args|
+ logger.info("Executing AMF #{message}(#{args.join(',')})")
+
+ case message
+ when "getpresets" then result = getpresets(*args)
+ when "whichways" then result = whichways(*args)
+ when "whichways_deleted" then result = whichways_deleted(*args)
+ when "getway" then result = getway(args[0].to_i)
+ when "getrelation" then result = getrelation(args[0].to_i)
+ when "getway_old" then result = getway_old(args[0].to_i, args[1])
+ when "getway_history" then result = getway_history(args[0].to_i)
+ when "getnode_history" then result = getnode_history(args[0].to_i)
+ when "findgpx" then result = findgpx(*args)
+ when "findrelations" then result = findrelations(*args)
+ when "getpoi" then result = getpoi(*args)
+ end
+
+ result
+ end
+ end
+
+ def amf_write
+ renumberednodes = {} # Shared across repeated putways
+ renumberedways = {} # Shared across repeated putways
+ err = false # Abort batch on error
+
+ self.status = :ok
+ self.content_type = Mime[:amf]
+ self.response_body = Dispatcher.new(request.raw_post) do |message, *args|
+ logger.info("Executing AMF #{message}")
+
+ if err
+ result = [-5, nil]
+ else
+ case message
+ when "putway" then
+ orn = renumberednodes.dup
+ result = putway(renumberednodes, *args)
+ result[4] = renumberednodes.reject { |k, _v| orn.key?(k) }
+ renumberedways[result[2]] = result[3] if result[0].zero? && result[2] != result[3]
+ when "putrelation" then
+ result = putrelation(renumberednodes, renumberedways, *args)
+ when "deleteway" then
+ result = deleteway(*args)
+ when "putpoi" then
+ result = putpoi(*args)
+ renumberednodes[result[2]] = result[3] if result[0].zero? && result[2] != result[3]
+ when "startchangeset" then
+ result = startchangeset(*args)
+ end
+
+ err = true if result[0] == -3 # If a conflict is detected, don't execute any more writes
+ end
+
+ result
+ end
+ end
+
+ private
+
+ def amf_handle_error(call, rootobj, rootid)
+ yield
+ rescue OSM::APIAlreadyDeletedError => ex
+ [-4, ex.object, ex.object_id]
+ rescue OSM::APIVersionMismatchError => ex
+ [-3, [rootobj, rootid], [ex.type.downcase, ex.id, ex.latest]]
+ rescue OSM::APIUserChangesetMismatchError => ex
+ [-2, ex.to_s]
+ rescue OSM::APIBadBoundingBox => ex
+ [-2, "Sorry - I can't get the map for that area. The server said: #{ex}"]
+ rescue OSM::APIError => ex
+ [-1, ex.to_s]
+ rescue StandardError => ex
+ [-2, "An unusual error happened (in #{call}). The server said: #{ex}"]
+ end
+
+ def amf_handle_error_with_timeout(call, rootobj, rootid)
+ amf_handle_error(call, rootobj, rootid) do
+ OSM::Timer.timeout(API_TIMEOUT, OSM::APITimeoutError) do
+ yield
+ end
+ end
+ end
+
+ # Start new changeset
+ # Returns success_code,success_message,changeset id
+
+ def startchangeset(usertoken, cstags, closeid, closecomment, opennew)
+ amf_handle_error("'startchangeset'", nil, nil) do
+ user = getuser(usertoken)
+ return -1, "You are not logged in, so Potlatch can't write any changes to the database." unless user
+ return -1, t("application.setup_user_auth.blocked") if user.blocks.active.exists?
+ return -1, "You must accept the contributor terms before you can edit." if REQUIRE_TERMS_AGREED && user.terms_agreed.nil?
+
+ if cstags
+ return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(cstags)
+ cstags = strip_non_xml_chars cstags
+ end
+
+ # close previous changeset and add comment
+ if closeid
+ cs = Changeset.find(closeid.to_i)
+ cs.set_closed_time_now
+ if cs.user_id != user.id
+ raise OSM::APIUserChangesetMismatchError
+ elsif closecomment.empty?
+ cs.save!
+ else
+ cs.tags["comment"] = closecomment
+ # in case closecomment has chars not allowed in xml
+ cs.tags = strip_non_xml_chars cs.tags
+ cs.save_with_tags!
+ end
+ end
+
+ # open a new changeset
+ if opennew.nonzero?
+ cs = Changeset.new
+ cs.tags = cstags
+ cs.user_id = user.id
+ unless closecomment.empty?
+ cs.tags["comment"] = closecomment
+ # in case closecomment has chars not allowed in xml
+ cs.tags = strip_non_xml_chars cs.tags
+ end
+ # smsm1 doesn't like the next two lines and thinks they need to be abstracted to the model more/better
+ cs.created_at = Time.now.getutc
+ cs.closed_at = cs.created_at + Changeset::IDLE_TIMEOUT
+ cs.save_with_tags!
+ return [0, "", cs.id]
+ else
+ return [0, "", nil]
+ end
+ end
+ end
+
+ # Return presets (default tags, localisation etc.):
+ # uses POTLATCH_PRESETS global, set up in OSM::Potlatch.
+
+ def getpresets(usertoken, _lang)
+ user = getuser(usertoken)
+
+ langs = if user && !user.languages.empty?
+ Locale.list(user.languages)
+ else
+ Locale.list(http_accept_language.user_preferred_languages)
+ end
+
+ lang = getlocales.preferred(langs)
+ (real_lang, localised) = getlocalized(lang.to_s)
+
+ # Tell Potlatch what language it's using
+ localised["__potlatch_locale"] = real_lang
+
+ # Get help from i18n but delete it so we won't pass it around
+ # twice for nothing
+ help = localised["help_html"]
+ localised.delete("help_html")
+
+ # Populate icon names
+ POTLATCH_PRESETS[10].each do |id|
+ POTLATCH_PRESETS[11][id] = localised["preset_icon_#{id}"]
+ localised.delete("preset_icon_#{id}")
+ end
+
+ POTLATCH_PRESETS + [localised, help]
+ end
+
+ def getlocalized(lang)
+ # What we end up actually using. Reported in Potlatch's created_by=* string
+ loaded_lang = "en"
+
+ # Load English defaults
+ en = YAML.safe_load(File.open(Rails.root.join("config", "potlatch", "locales", "en.yml")))["en"]
+
+ if lang == "en"
+ return [loaded_lang, en]
+ else
+ # Use English as a fallback
+ begin
+ other = YAML.safe_load(File.open(Rails.root.join("config", "potlatch", "locales", "#{lang}.yml")))[lang]
+ loaded_lang = lang
+ rescue StandardError
+ other = en
+ end
+
+ # We have to return a flat list and some of the keys won't be
+ # translated (probably)
+ return [loaded_lang, en.merge(other)]
+ end
+ end
+
+ ##
+ # Find all the ways, POI nodes (i.e. not part of ways), and relations
+ # in a given bounding box. Nodes are returned in full; ways and relations
+ # are IDs only.
+ #
+ # return is of the form:
+ # [success_code, success_message,
+ # [[way_id, way_version], ...],
+ # [[node_id, lat, lon, [tags, ...], node_version], ...],
+ # [[rel_id, rel_version], ...]]
+ # where the ways are any visible ways which refer to any visible
+ # nodes in the bbox, nodes are any visible nodes in the bbox but not
+ # used in any way, rel is any relation which refers to either a way
+ # or node that we're returning.
+ def whichways(xmin, ymin, xmax, ymax)
+ amf_handle_error_with_timeout("'whichways'", nil, nil) do
+ enlarge = [(xmax - xmin) / 8, 0.01].min
+ xmin -= enlarge
+ ymin -= enlarge
+ xmax += enlarge
+ ymax += enlarge
+
+ # check boundary is sane and area within defined
+ # see /config/application.yml
+ bbox = BoundingBox.new(xmin, ymin, xmax, ymax)
+ bbox.check_boundaries
+ bbox.check_size
+
+ if POTLATCH_USE_SQL
+ ways = sql_find_ways_in_area(bbox)
+ points = sql_find_pois_in_area(bbox)
+ relations = sql_find_relations_in_area_and_ways(bbox, ways.collect { |x| x[0] })
+ else
+ # find the way ids in an area
+ nodes_in_area = Node.bbox(bbox).visible.includes(:ways)
+ ways = nodes_in_area.inject([]) do |sum, node|
+ visible_ways = node.ways.select(&:visible?)
+ sum + visible_ways.collect { |w| [w.id, w.version] }
+ end.uniq
+ ways.delete([])
+
+ # find the node ids in an area that aren't part of ways
+ nodes_not_used_in_area = nodes_in_area.select { |node| node.ways.empty? }
+ points = nodes_not_used_in_area.collect { |n| [n.id, n.lon, n.lat, n.tags, n.version] }.uniq
+
+ # find the relations used by those nodes and ways
+ relations = Relation.nodes(nodes_in_area.collect(&:id)).visible +
+ Relation.ways(ways.collect { |w| w[0] }).visible
+ relations = relations.collect { |relation| [relation.id, relation.version] }.uniq
+ end
+
+ [0, "", ways, points, relations]
+ end
+ end
+
+ # Find deleted ways in current bounding box (similar to whichways, but ways
+ # with a deleted node only - not POIs or relations).
+
+ def whichways_deleted(xmin, ymin, xmax, ymax)
+ amf_handle_error_with_timeout("'whichways_deleted'", nil, nil) do
+ enlarge = [(xmax - xmin) / 8, 0.01].min
+ xmin -= enlarge
+ ymin -= enlarge
+ xmax += enlarge
+ ymax += enlarge
+
+ # check boundary is sane and area within defined
+ # see /config/application.yml
+ bbox = BoundingBox.new(xmin, ymin, xmax, ymax)
+ bbox.check_boundaries
+ bbox.check_size
+
+ nodes_in_area = Node.bbox(bbox).joins(:ways_via_history).where(:current_ways => { :visible => false })
+ way_ids = nodes_in_area.collect { |node| node.ways_via_history.invisible.collect(&:id) }.flatten.uniq
+
+ [0, "", way_ids]
+ end
+ end
+
+ # Get a way including nodes and tags.
+ # Returns the way id, a Potlatch-style array of points, a hash of tags, the version number, and the user ID.
+
+ def getway(wayid)
+ amf_handle_error_with_timeout("'getway' #{wayid}", "way", wayid) do
+ if POTLATCH_USE_SQL
+ points = sql_get_nodes_in_way(wayid)
+ tags = sql_get_tags_in_way(wayid)
+ version = sql_get_way_version(wayid)
+ uid = sql_get_way_user(wayid)
+ else
+ # Ideally we would do ":include => :nodes" here but if we do that
+ # then rails only seems to return the first copy of a node when a
+ # way includes a node more than once
+ way = Way.where(:id => wayid).first
+
+ # check case where way has been deleted or doesn't exist
+ return [-4, "way", wayid] if way.nil? || !way.visible
+
+ points = way.nodes.preload(:node_tags).collect do |node|
+ nodetags = node.tags
+ nodetags.delete("created_by")
+ [node.lon, node.lat, node.id, nodetags, node.version]
+ end
+ tags = way.tags
+ version = way.version
+ uid = way.changeset.user.id
+ end
+
+ [0, "", wayid, points, tags, version, uid]
+ end
+ end
+
+ # Get an old version of a way, and all constituent nodes.
+ #
+ # For undelete (version<0), always uses the most recent version of each node,
+ # even if it's moved. For revert (version >= 0), uses the node in existence
+ # at the time, generating a new id if it's still visible and has been moved/
+ # retagged.
+ #
+ # Returns:
+ # 0. success code,
+ # 1. id,
+ # 2. array of points,
+ # 3. hash of tags,
+ # 4. version,
+ # 5. is this the current, visible version? (boolean)
+
+ def getway_old(id, timestamp)
+ amf_handle_error_with_timeout("'getway_old' #{id}, #{timestamp}", "way", id) do
+ if timestamp == ""
+ # undelete
+ old_way = OldWay.where(:visible => true, :way_id => id).unredacted.order("version DESC").first
+ points = old_way.get_nodes_undelete unless old_way.nil?
+ else
+ begin
+ # revert
+ timestamp = Time.zone.strptime(timestamp.to_s, "%d %b %Y, %H:%M:%S")
+ old_way = OldWay.where("way_id = ? AND timestamp <= ?", id, timestamp).unredacted.order("timestamp DESC").first
+ unless old_way.nil?
+ if old_way.visible
+ points = old_way.get_nodes_revert(timestamp)
+ else
+ return [-1, "Sorry, the way was deleted at that time - please revert to a previous version.", id]
+ end
+ end
+ rescue ArgumentError
+ # thrown by date parsing method. leave old_way as nil for
+ # the error handler below.
+ old_way = nil
+ end
+ end
+
+ if old_way.nil?
+ return [-1, "Sorry, the server could not find a way at that time.", id]
+ else
+ curway = Way.find(id)
+ old_way.tags["history"] = "Retrieved from v#{old_way.version}"
+ return [0, "", id, points, old_way.tags, curway.version, (curway.version == old_way.version && curway.visible)]
+ end
+ end
+ end
+
+ # Find history of a way.
+ # Returns 'way', id, and an array of previous versions:
+ # - formerly [old_way.version, old_way.timestamp.strftime("%d %b %Y, %H:%M"), old_way.visible ? 1 : 0, user, uid]
+ # - now [timestamp,user,uid]
+ #
+ # Heuristic: Find all nodes that have ever been part of the way;
+ # get a list of their revision dates; add revision dates of the way;
+ # sort and collapse list (to within 2 seconds); trim all dates before the
+ # start date of the way.
+
+ def getway_history(wayid)
+ revdates = []
+ revusers = {}
+ Way.find(wayid).old_ways.unredacted.collect do |a|
+ revdates.push(a.timestamp)
+ revusers[a.timestamp.to_i] = change_user(a) unless revusers.key?(a.timestamp.to_i)
+ a.nds.each do |n|
+ Node.find(n).old_nodes.unredacted.collect do |o|
+ revdates.push(o.timestamp)
+ revusers[o.timestamp.to_i] = change_user(o) unless revusers.key?(o.timestamp.to_i)
+ end
+ end
+ end
+ waycreated = revdates[0]
+ revdates.uniq!
+ revdates.sort!
+ revdates.reverse!
+
+ # Remove any dates (from nodes) before first revision date of way
+ revdates.delete_if { |d| d < waycreated }
+ # Remove any elements where 2 seconds doesn't elapse before next one
+ revdates.delete_if { |d| revdates.include?(d + 1) || revdates.include?(d + 2) }
+ # Collect all in one nested array
+ revdates.collect! { |d| [(d + 1).strftime("%d %b %Y, %H:%M:%S")] + revusers[d.to_i] }
+ revdates.uniq!
+
+ ["way", wayid, revdates]
+ rescue ActiveRecord::RecordNotFound
+ ["way", wayid, []]
+ end
+
+ # Find history of a node. Returns 'node', id, and an array of previous versions as above.
+
+ def getnode_history(nodeid)
+ history = Node.find(nodeid).old_nodes.unredacted.reverse.collect do |old_node|
+ [(old_node.timestamp + 1).strftime("%d %b %Y, %H:%M:%S")] + change_user(old_node)
+ end
+ ["node", nodeid, history]
+ rescue ActiveRecord::RecordNotFound
+ ["node", nodeid, []]
+ end
+
+ def change_user(obj)
+ user_object = obj.changeset.user
+ user = user_object.data_public? ? user_object.display_name : "anonymous"
+ uid = user_object.data_public? ? user_object.id : 0
+ [user, uid]
+ end
+
+ # Find GPS traces with specified name/id.
+ # Returns array listing GPXs, each one comprising id, name and description.
+
+ def findgpx(searchterm, usertoken)
+ amf_handle_error_with_timeout("'findgpx'", nil, nil) do
+ user = getuser(usertoken)
+
+ return -1, "You must be logged in to search for GPX traces." unless user
+ return -1, t("application.setup_user_auth.blocked") if user.blocks.active.exists?
+
+ query = Trace.visible_to(user)
+ query = if searchterm.to_i > 0
+ query.where(:id => searchterm.to_i)
+ else
+ query.where("MATCH(name) AGAINST (?)", searchterm).limit(21)
+ end
+ gpxs = query.collect do |gpx|
+ [gpx.id, gpx.name, gpx.description]
+ end
+ [0, "", gpxs]
+ end
+ end
+
+ # Get a relation with all tags and members.
+ # Returns:
+ # 0. success code?
+ # 1. object type?
+ # 2. relation id,
+ # 3. hash of tags,
+ # 4. list of members,
+ # 5. version.
projects / rails.git / blobdiff