-# amf_controller is a semi-standalone API for Flash clients, particularly
-# Potlatch. All interaction between Potlatch (as a .SWF application) and the
-# OSM database takes place using this controller. Messages are
+# amf_controller is a semi-standalone API for Flash clients, particularly
+# Potlatch. All interaction between Potlatch (as a .SWF application) and the
+# OSM database takes place using this controller. Messages are
# encoded in the Actionscript Message Format (AMF).
#
# Helper functions are in /lib/potlatch.rb
#
-# Author:: editions Systeme D / Richard Fairhurst 2004-2008
-# Licence:: public domain.
+# Author:: editions Systeme D / Richard Fairhurst 2004-2008
+# Licence:: public domain.
#
# == General structure
#
# Apart from the amf_read and amf_write methods (which distribute the requests
-# from the AMF message), each method generally takes arguments in the order
-# they were sent by the Potlatch SWF. Do not assume typing has been preserved.
+# from the AMF message), each method generally takes arguments in the order
+# they were sent by the Potlatch SWF. Do not assume typing has been preserved.
# Methods all return an array to the SWF.
#
# == API 0.6
#
# Note that this requires a patched version of composite_primary_keys 1.1.0
-# (see http://groups.google.com/group/compositekeys/t/a00e7562b677e193)
+# (see http://groups.google.com/group/compositekeys/t/a00e7562b677e193)
# if you are to run with POTLATCH_USE_SQL=false .
-#
+#
# == Debugging
-#
+#
# Any method that returns a status code (0 for ok) can also send:
-# return(-1,"message") <-- just puts up a dialogue
-# return(-2,"message") <-- also asks the user to e-mail me
-#
-# To write to the Rails log, use RAILS_DEFAULT_LOGGER.info("message").
+# return(-1,"message") <-- just puts up a dialogue
+# return(-2,"message") <-- also asks the user to e-mail me
+# return(-3,["type",v],id) <-- version conflict
+# return(-4,"type",id) <-- object not found
+# -5 indicates the method wasn't called (due to a previous error)
+#
+# To write to the Rails log, use logger.info("message").
-class AmfController < ApplicationController
- require 'stringio'
+# Remaining issues:
+# * version conflict when POIs and ways are reverted
+class AmfController < ApplicationController
include Potlatch
- # Help methods for checking boundary sanity and area size
- include MapBoundary
-
- session :off
- before_filter :check_write_availability
+ 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.
- # ** FIXME: refactor to reduce duplication of code across read/write
-
- def amf_read
- req=StringIO.new(request.raw_post+0.chr)# Get POST data as request
- # (cf http://www.ruby-forum.com/topic/122163)
- req.read(2) # Skip version indicator and client ID
- results={} # Results of each body
-
- # Parse request
-
- headers=AMF.getint(req) # Read number of headers
- headers.times do # Read each header
- name=AMF.getstring(req) # |
- req.getc # | skip boolean
- value=AMF.getvalue(req) # |
- header["name"]=value # |
- end
-
- bodies=AMF.getint(req) # Read number of bodies
- bodies.times do # Read each body
- message=AMF.getstring(req) # | get message name
- index=AMF.getstring(req) # | get index in response sequence
- bytes=AMF.getlong(req) # | get total size in bytes
- args=AMF.getvalue(req) # | get response (probably an array)
- logger.info "Executing AMF #{message}:#{index}"
+ 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'; results[index]=AMF.putdata(index,getpresets())
- when 'whichways'; results[index]=AMF.putdata(index,whichways(*args))
- when 'whichways_deleted'; results[index]=AMF.putdata(index,whichways_deleted(*args))
- when 'getway'; results[index]=AMF.putdata(index,getway(args[0].to_i))
- when 'getrelation'; results[index]=AMF.putdata(index,getrelation(args[0].to_i))
- when 'getway_old'; results[index]=AMF.putdata(index,getway_old(args[0].to_i,args[1].to_i))
- when 'getway_history'; results[index]=AMF.putdata(index,getway_history(args[0].to_i))
- when 'getnode_history'; results[index]=AMF.putdata(index,getnode_history(args[0].to_i))
- when 'findgpx'; results[index]=AMF.putdata(index,findgpx(*args))
- when 'findrelations'; results[index]=AMF.putdata(index,findrelations(*args))
- when 'getpoi'; results[index]=AMF.putdata(index,getpoi(*args))
+ 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
- logger.info("encoding AMF results")
- sendresponse(results)
end
def amf_write
- req=StringIO.new(request.raw_post+0.chr)
- req.read(2)
- results={}
- renumberednodes={} # Shared across repeated putways
- renumberedways={} # Shared across repeated putways
-
- headers=AMF.getint(req) # Read number of headers
- headers.times do # Read each header
- name=AMF.getstring(req) # |
- req.getc # | skip boolean
- value=AMF.getvalue(req) # |
- header["name"]=value # |
- end
+ renumberednodes = {} # Shared across repeated putways
+ renumberedways = {} # Shared across repeated putways
+ err = false # Abort batch on error
- bodies=AMF.getint(req) # Read number of bodies
- bodies.times do # Read each body
- message=AMF.getstring(req) # | get message name
- index=AMF.getstring(req) # | get index in response sequence
- bytes=AMF.getlong(req) # | get total size in bytes
- args=AMF.getvalue(req) # | get response (probably an array)
+ self.status = :ok
+ self.content_type = Mime[:amf]
+ self.response_body = Dispatcher.new(request.raw_post) do |message, *args|
+ logger.info("Executing AMF #{message}")
- case message
- when 'putway'; r=putway(renumberednodes,*args)
- renumberednodes=r[3]
- if r[1] != r[2] then renumberedways[r[1]] = r[2] end
- results[index]=AMF.putdata(index,r)
- when 'putrelation'; results[index]=AMF.putdata(index,putrelation(renumberednodes, renumberedways, *args))
- when 'deleteway'; results[index]=AMF.putdata(index,deleteway(*args))
- when 'putpoi'; r=putpoi(*args)
- if r[1] != r[2] then renumberednodes[r[1]] = r[2] end
- results[index]=AMF.putdata(index,r)
- when 'startchangeset'; results[index]=AMF.putdata(index,startchangeset(*args))
+ 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
- sendresponse(results)
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
-
- def startchangeset(usertoken, cstags, closeid, closecomment)
- user = getuser(usertoken)
- if !user then return -1,"You are not logged in, so Potlatch can't write any changes to the database." end
-
- # close previous changeset and add comment
- if closeid
- cs = Changeset.find(closeid)
- cs.set_closed_time_now
- if cs.user_id!=user.id
- return -2,"You cannot close that changeset because you're not the person who opened it."
- elsif closecomment.empty?
- cs.save!
- else
- cs.tags['comment']=closecomment
+ # 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
-
- # open a new changeset
- cs = Changeset.new
- cs.tags = cstags
- cs.user_id = user.id
- # 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
- cs.closed_at = cs.created_at + Changeset::IDLE_TIMEOUT
- cs.save_with_tags!
- return [0,cs.id]
end
# Return presets (default tags, localisation etc.):
# uses POTLATCH_PRESETS global, set up in OSM::Potlatch.
- def getpresets() #:doc:
- return POTLATCH_PRESETS
+ 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.
+ # in a given bounding box. Nodes are returned in full; ways and relations
+ # are IDs only.
#
- # return is of the form:
- # [error_code,
+ # return is of the form:
+ # [success_code, success_message,
# [[way_id, way_version], ...],
# [[node_id, lat, lon, [tags, ...], node_version], ...],
# [[rel_id, rel_version], ...]]
# 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) #:doc:
- xmin -= 0.01; ymin -= 0.01
- xmax += 0.01; ymax += 0.01
-
- # check boundary is sane and area within defined
- # see /config/application.yml
- check_boundaries(xmin, ymin, xmax, ymax)
-
- if POTLATCH_USE_SQL then
- ways = sql_find_ways_in_area(xmin, ymin, xmax, ymax)
- points = sql_find_pois_in_area(xmin, ymin, xmax, ymax)
- relations = sql_find_relations_in_area_and_ways(xmin, ymin, xmax, ymax, ways.collect {|x| x[0]})
- else
- # find the way ids in an area
- nodes_in_area = Node.find_by_area(ymin, xmin, ymax, xmax, :conditions => ["current_nodes.visible = ?", true], :include => :ways)
- ways = nodes_in_area.inject([]) { |sum, node|
- visible_ways = node.ways.select { |w| w.visible? }
- sum + visible_ways.collect { |w| [w.id,w.version] }
- }.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] }
-
- # find the relations used by those nodes and ways
- relations = Relation.find_for_nodes(nodes_in_area.collect { |n| n.id }, :conditions => {:visible => true}) +
- Relation.find_for_ways(ways.collect { |w| w[0] }, :conditions => {:visible => true})
- relations = relations.collect { |relation| [relation.id,relation.version] }.uniq
- end
-
- [0,ways, points, relations]
+ 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
- rescue Exception => err
- [-2,"Sorry - I can't get the map for that area."]
+ [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) #:doc:
- xmin -= 0.01; ymin -= 0.01
- xmax += 0.01; ymax += 0.01
+ 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
- begin
- check_boundaries(xmin, ymin, xmax, ymax)
- rescue Exception => err
- return [-2,"Sorry - I can't get the map for that area."]
- end
+ # 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.find_by_area(ymin, xmin, ymax, xmax, :conditions => ["current_ways.visible = ?", false], :include => :ways_via_history)
- way_ids = nodes_in_area.collect { |node| node.ways_via_history_ids }.flatten.uniq
+ 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]
+ [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, and the version number.
-
- def getway(wayid) #:doc:
- if POTLATCH_USE_SQL then
- points = sql_get_nodes_in_way(wayid)
- tags = sql_get_tags_in_way(wayid)
- version = sql_get_way_version(wayid)
+ # 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
- begin
- way = Way.find(wayid)
- rescue ActiveRecord::RecordNotFound
- return [wayid,[],{}]
- end
+ way = Way.where(:id => wayid).first
# check case where way has been deleted or doesn't exist
- return [wayid,[],{}] if way.nil? or !way.visible
+ return [-4, "way", wayid] if way.nil? || !way.visible
- points = way.nodes.collect do |node|
- nodetags=node.tags
- nodetags.delete('created_by')
- [node.lon, node.lat, node.id, nodetags, node.version]
+ 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
- tags = way.tags
- version = way.version
- end
- [wayid, points, tags, version]
+ [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
+ # 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,
+ # 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, version) #:doc:
- if version < 0
- old_way = OldWay.find(:first, :conditions => ['visible = ? AND id = ?', true, id], :order => 'version DESC')
- points = old_way.get_nodes_undelete unless old_way.nil?
- else
- old_way = OldWay.find(:first, :conditions => ['id = ? AND version = ?', id, version])
- points = old_way.get_nodes_revert unless old_way.nil?
- end
+ 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, id, [], {}, -1,0]
- else
- curway=Way.find(id)
- old_way.tags['history'] = "Retrieved from v#{old_way.version}"
- return [0, id, points, old_way.tags, old_way.version, (curway.version==old_way.version and curway.visible)]
+ 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.
-
- def getway_history(wayid) #:doc:
- begin
- history = Way.find(wayid).old_ways.reverse.collect do |old_way|
- user_object = old_way.changeset.user
- user = user_object.data_public? ? user_object.display_name : 'anonymous'
- uid = user_object.data_public? ? user_object.id : 0
- [old_way.version, old_way.timestamp.strftime("%d %b %Y, %H:%M"), old_way.visible ? 1 : 0, user, uid]
- end
- return ['way',wayid,history]
- rescue ActiveRecord::RecordNotFound
- return ['way', wayid, []]
+ # 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.
+ # Find history of a node. Returns 'node', id, and an array of previous versions as above.
- def getnode_history(nodeid) #:doc:
- history = Node.find(nodeid).old_nodes.reverse.collect do |old_node|
- user_object = old_node.changeset.user
- user = user_object.data_public? ? user_object.display_name : 'anonymous'
- uid = user_object.data_public? ? user_object.id : 0
- [old_node.version, old_node.timestamp.strftime("%d %b %Y, %H:%M"), old_node.visible ? 1 : 0, user, uid]
+ 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
-
- return ['node',nodeid,history]
+ ["node", nodeid, history]
rescue ActiveRecord::RecordNotFound
- return ['node', nodeid, []]
+ ["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)
- user = getuser(usertoken)
- if !uid then return -1,"You must be logged in to search for GPX traces." end
- gpxs = []
- if searchterm.to_i>0 then
- gpx = Trace.find(searchterm.to_i, :conditions => ["visible=? AND (public=? OR user_id=?)",true,true,user.id] )
- if gpx then
- gpxs.push([gpx.id, gpx.name, gpx.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
- else
- Trace.find(:all, :limit => 21, :conditions => ["visible=? AND (public=? OR user_id=?) AND MATCH(name) AGAINST (?)",true,true,user.id,searchterm] ).each do |gpx|
- gpxs.push([gpx.id, gpx.name, gpx.description])
- end
- end
- gpxs
+ [0, "", gpxs]
+ end
end
# Get a relation with all tags and members.
# Returns:
- # 0. relation id,
- # 1. hash of tags,
- # 2. list of members,
- # 3. version.
-
- def getrelation(relid) #:doc:
- begin
- rel = Relation.find(relid)
- rescue ActiveRecord::RecordNotFound
- return [relid, {}, []]
+ # 0. success code?
+ # 1. object type?
+ # 2. relation id,
+ # 3. hash of tags,
+ # 4. list of members,
+ # 5. version.
+
+ def getrelation(relid)
+ amf_handle_error("'getrelation' #{relid}", "relation", relid) do
+ rel = Relation.where(:id => relid).first
+
+ return [-4, "relation", relid] if rel.nil? || !rel.visible
+ [0, "", relid, rel.tags, rel.members, rel.version]
end
-
- return [relid, {}, [], nil] if rel.nil? or !rel.visible
- [relid, rel.tags, rel.members, rel.version]
end
# Find relations with specified name/id.
# Returns array of relations, each in same form as getrelation.
-
+
def findrelations(searchterm)
rels = []
- if searchterm.to_i>0 then
- rel = Relation.find(searchterm.to_i)
- if rel and rel.visible then
- rels.push([rel.id, rel.tags, rel.members])
- end
+ if searchterm.to_i > 0
+ rel = Relation.where(:id => searchterm.to_i).first
+ rels.push([rel.id, rel.tags, rel.members, rel.version]) if rel && rel.visible
else
- RelationTag.find(:all, :limit => 11, :conditions => ["match(v) against (?)", searchterm] ).each do |t|
- if t.relation.visible then
- rels.push([t.relation.id, t.relation.tags, t.relation.members])
- end
- end
- end
+ RelationTag.where("v like ?", "%#{searchterm}%").limit(11).each do |t|
+ rels.push([t.relation.id, t.relation.tags, t.relation.members, t.relation.version]) if t.relation.visible
+ end
+ end
rels
end
# Returns
# 0. 0 (success),
# 1. original relation id (unchanged),
- # 2. new relation id.
-
- def putrelation(renumberednodes, renumberedways, usertoken, changeset, version, relid, tags, members, visible) #:doc:
- user = getuser(usertoken)
- if !user then return -1,"You are not logged in, so the relation could not be saved." end
-
- relid = relid.to_i
- visible = (visible.to_i != 0)
+ # 2. new relation id,
+ # 3. version.
- new_relation = nil
- relation = nil
- Relation.transaction do
- # create a new relation, or find the existing one
- if relid > 0
- relation = Relation.find(relid)
- end
- # We always need a new node, based on the data that has been sent to us
- new_relation = Relation.new
-
- # check the members are all positive, and correctly type
- typedmembers = []
- members.each do |m|
- mid = m[1].to_i
- if mid < 0
- mid = renumberednodes[mid] if m[0] == 'node'
- mid = renumberedways[mid] if m[0] == 'way'
+ def putrelation(renumberednodes, renumberedways, usertoken, changeset_id, version, relid, tags, members, visible)
+ amf_handle_error("'putrelation' #{relid}", "relation", relid) do
+ user = getuser(usertoken)
+
+ return -1, "You are not logged in, so the relation could not be saved." 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?
+
+ return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(tags)
+ tags = strip_non_xml_chars tags
+
+ relid = relid.to_i
+ visible = visible.to_i.nonzero?
+
+ new_relation = nil
+ relation = nil
+ Relation.transaction do
+ # create a new relation, or find the existing one
+ relation = Relation.find(relid) if relid > 0
+ # We always need a new node, based on the data that has been sent to us
+ new_relation = Relation.new
+
+ # check the members are all positive, and correctly type
+ typedmembers = []
+ members.each do |m|
+ mid = m[1].to_i
+ if mid < 0
+ mid = renumberednodes[mid] if m[0] == "Node"
+ mid = renumberedways[mid] if m[0] == "Way"
+ end
+ typedmembers << [m[0], mid, m[2].delete("\000-\037\ufffe\uffff", "^\011\012\015")] if mid
end
- if mid
- typedmembers << [m[0], mid, m[2]]
+
+ # assign new contents
+ new_relation.members = typedmembers
+ new_relation.tags = tags
+ new_relation.visible = visible
+ new_relation.changeset_id = changeset_id
+ new_relation.version = version
+
+ if relid <= 0
+ # We're creating the relation
+ new_relation.create_with_history(user)
+ elsif visible
+ # We're updating the relation
+ new_relation.id = relid
+ relation.update_from(new_relation, user)
+ else
+ # We're deleting the relation
+ new_relation.id = relid
+ relation.delete_with_history!(new_relation, user)
end
end
- # assign new contents
- new_relation.members = typedmembers
- new_relation.tags = tags
- new_relation.visible = visible
- new_relation.changeset_id = changeset
- new_relation.version = version
-
-
- if id <= 0
- # We're creating the node
- new_relation.create_with_history(user)
- elsif visible
- # We're updating the node
- relation.update_from(new_relation, user)
+ if relid <= 0
+ return [0, "", relid, new_relation.id, new_relation.version]
else
- # We're deleting the node
- relation.delete_with_history!(new_relation, user)
+ return [0, "", relid, relid, relation.version]
end
- end # transaction
-
- if id <= 0
- return [0, relid, new_relation.id, new_relation.version]
- else
- return [0, relid, relation.id, relation.version]
end
- rescue OSM::APIChangesetAlreadyClosedError => ex
- return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}."]
- rescue OSM::APIVersionMismatchError => ex
- # Really need to check to see whether this is a server load issue, and the
- # last version was in the same changeset, or belongs to the same user, then
- # we can return something different
- return [-3, "You have taken too long to edit, please reload the area."]
- rescue OSM::APIAlreadyDeletedError => ex
- return [-1, "The object has already been deleted"]
- rescue OSM::APIError => ex
- # Some error that we don't specifically catch
- return [-2, "Something really bad happened :-()"]
end
# Save a way to the database, including all nodes. Any nodes in the previous
# version and no longer used are deleted.
- #
+ #
# Parameters:
# 0. hash of renumbered nodes (added by amf_controller)
# 1. current user token (for authentication)
# 4. way ID
# 5. list of nodes in way
# 6. hash of way tags
- # 7. array of nodes to change (each one is [lon,lat,id,version,tags])
- #
+ # 7. array of nodes to change (each one is [lon,lat,id,version,tags]),
+ # 8. hash of nodes to delete (id->version).
+ #
# Returns:
# 0. '0' (code for success),
- # 1. original way id (unchanged),
- # 2. new way id,
- # 3. hash of renumbered nodes (old id=>new id),
- # 4. way version,
- # 5. hash of node versions (node=>version)
-
- def putway(renumberednodes, usertoken, changeset, version, originalway, pointlist, attributes, nodes) #:doc:
-
- # -- Initialise
-
- user = getuser(usertoken)
- if !user then return -1,"You are not logged in, so the way could not be saved." end
- if pointlist.length < 2 then return -2,"Server error - way is only #{points.length} points long." end
-
- originalway = originalway.to_i
- pointlist.collect! {|a| a.to_i }
-
- way=nil # this is returned, so scope it outside the transaction
- nodeversions = {}
- Way.transaction do
-
- # -- Get unique nodes
+ # 1. message,
+ # 2. original way id (unchanged),
+ # 3. new way id,
+ # 4. hash of renumbered nodes (old id=>new id),
+ # 5. way version,
+ # 6. hash of changed node versions (node=>version)
+ # 7. hash of deleted node versions (node=>version)
+
+ def putway(renumberednodes, usertoken, changeset_id, wayversion, originalway, pointlist, attributes, nodes, deletednodes)
+ amf_handle_error("'putway' #{originalway}", "way", originalway) do
+ # -- Initialise
+
+ user = getuser(usertoken)
+ return -1, "You are not logged in, so the way could not be saved." 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?
+
+ return -2, "Server error - way is only #{pointlist.length} points long." if pointlist.length < 2
+
+ return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(attributes)
+ attributes = strip_non_xml_chars attributes
+
+ originalway = originalway.to_i
+ pointlist.collect!(&:to_i)
+
+ way = nil # this is returned, so scope it outside the transaction
+ nodeversions = {}
+ Way.transaction do
+ # -- Update each changed node
+
+ nodes.each do |a|
+ lon = a[0].to_f
+ lat = a[1].to_f
+ id = a[2].to_i
+ version = a[3].to_i
+
+ return -2, "Server error - node with id 0 found in way #{originalway}." if id.zero?
+ return -2, "Server error - node with latitude -90 found in way #{originalway}." if lat == 90
+
+ id = renumberednodes[id] if renumberednodes[id]
+
+ node = Node.new
+ node.changeset_id = changeset_id
+ node.lat = lat
+ node.lon = lon
+ node.tags = a[4]
+
+ # fixup node tags in a way as well
+ return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(node.tags)
+ node.tags = strip_non_xml_chars node.tags
+
+ node.tags.delete("created_by")
+ node.version = version
+ if id <= 0
+ # We're creating the node
+ node.create_with_history(user)
+ renumberednodes[id] = node.id
+ nodeversions[node.id] = node.version
+ else
+ # We're updating an existing node
+ previous = Node.find(id)
+ node.id = id
+ previous.update_from(node, user)
+ nodeversions[previous.id] = previous.version
+ end
+ end
- if originalway <= 0
- uniques = []
- else
- way = Way.find(originalway)
- uniques = way.unshared_node_ids
- end
+ # -- Save revised way
- #-- Update each changed node
-
- nodes.each do |a|
- lon = a[0].to_f
- lat = a[1].to_f
- id = a[2].to_i
- version = a[3].to_i
- if id == 0 then return -2,"Server error - node with id 0 found in way #{originalway}." end
- if lat== 90 then return -2,"Server error - node with latitude -90 found in way #{originalway}." end
- if renumberednodes[id] then id = renumberednodes[id] end
-
- node = Node.new
- node.changeset_id = changeset
- node.lat = lat
- node.lon = lon
- node.tags = a[4]
- node.tags.delete('created_by')
- node.version = version
- if id <= 0
- # We're creating the node
- node.create_with_history(user)
- renumberednodes[id] = node.id
- nodeversions[node.id] = node.version
+ pointlist.collect! do |a|
+ renumberednodes[a] || a
+ end
+ new_way = Way.new
+ new_way.tags = attributes
+ new_way.nds = pointlist
+ new_way.changeset_id = changeset_id
+ new_way.version = wayversion
+ if originalway <= 0
+ new_way.create_with_history(user)
+ way = new_way # so we can get way.id and way.version
else
- # We're updating an existing node
- previous=Node.find(id)
- previous.update_from(node, user)
- nodeversions[previous.id] = previous.version
+ way = Way.find(originalway)
+ if way.tags != attributes || way.nds != pointlist || !way.visible?
+ new_way.id = originalway
+ way.update_from(new_way, user)
+ end
end
- end
-
- # -- Delete any unique nodes no longer used
- uniques=uniques-pointlist
- uniques.each do |n|
- node = Node.find(n)
- new_node = Node.new
- new_node.changeset_id = changeset
- new_node.version = version
- node.delete_with_history!(new_node, user)
- end
-
- # -- Save revised way
-
- pointlist.collect! {|a|
- renumberednodes[a] ? renumberednodes[a]:a
- } # renumber nodes
- new_way = Way.new
- new_way.tags = attributes
- new_way.nds = pointlist
- new_way.changeset_id = changeset
- new_way.version = version
- if originalway <= 0
- new_way.create_with_history(user)
- way=new_way # so we can get way.id and way.version
- elsif way.tags!=attributes or way.nds!=pointlist or !way.visible?
- way.update_from(new_way, user)
+ # -- Delete unwanted nodes
+
+ deletednodes.each do |id, v|
+ node = Node.find(id.to_i)
+ new_node = Node.new
+ new_node.changeset_id = changeset_id
+ new_node.version = v.to_i
+ new_node.id = id.to_i
+ begin
+ node.delete_with_history!(new_node, user)
+ rescue OSM::APIPreconditionFailedError
+ # We don't do anything here as the node is being used elsewhere
+ # and we don't want to delete it
+ end
+ end
end
- end # transaction
- [0, originalway, way.id, renumberednodes, way.version, nodeversions]
- rescue OSM::APIChangesetAlreadyClosedError => ex
- return [-2, "Sorry, your changeset #{ex.changeset.id} has been closed (at #{ex.changeset.closed_at})."]
- rescue OSM::APIVersionMismatchError => ex
- # Really need to check to see whether this is a server load issue, and the
- # last version was in the same changeset, or belongs to the same user, then
- # we can return something different
- return [-3, "Sorry, someone else has changed this way since you started editing - please reload the area"]
- rescue OSM::APITooManyWayNodesError => ex
- return [-1, "You have tried to upload a really long way with #{ex.provided} points: only #{ex.max} are allowed."]
- rescue OSM::APIAlreadyDeletedError => ex
- return [-1, "The object has already been deleted."]
- rescue OSM::APIError => ex
- # Some error that we don't specifically catch
- return [-2, "Something really bad happened :-(."]
+ [0, "", originalway, way.id, renumberednodes, way.version, nodeversions, deletednodes]
+ end
end
# Save POI to the database.
# Refuses save if the node has since become part of a way.
# Returns array with:
# 0. 0 (success),
- # 1. original node id (unchanged),
- # 2. new node id,
- # 3. version.
+ # 1. success message,
+ # 2. original node id (unchanged),
+ # 3. new node id,
+ # 4. version.
+
+ def putpoi(usertoken, changeset_id, version, id, lon, lat, tags, visible)
+ amf_handle_error("'putpoi' #{id}", "node", id) do
+ user = getuser(usertoken)
+ return -1, "You are not logged in, so the point could not be saved." 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?
+
+ return -1, "One of the tags is invalid. Linux users may need to upgrade to Flash Player 10.1." unless tags_ok(tags)
+ tags = strip_non_xml_chars tags
+
+ id = id.to_i
+ visible = (visible.to_i == 1)
+ node = nil
+ new_node = nil
+ Node.transaction do
+ if id > 0
+ begin
+ node = Node.find(id)
+ rescue ActiveRecord::RecordNotFound
+ return [-4, "node", id]
+ end
+
+ return -1, "Point #{id} has since become part of a way, so you cannot save it as a POI.", id, id, version unless visible || node.ways.empty?
+ end
+ # We always need a new node, based on the data that has been sent to us
+ new_node = Node.new
- def putpoi(usertoken, changeset, version, id, lon, lat, tags, visible) #:doc:
- user = getuser(usertoken)
- if !user then return -1,"You are not logged in, so the point could not be saved." end
-
- id = id.to_i
- visible = (visible.to_i == 1)
- node = nil
- new_node = nil
- Node.transaction do
- if id > 0 then
- node = Node.find(id)
-
- if !visible then
- unless node.ways.empty? then return -1,"The point has since become part of a way, so you cannot save it as a POI." end
- deleteitemrelations(id, 'node')
+ new_node.changeset_id = changeset_id
+ new_node.version = version
+ new_node.lat = lat
+ new_node.lon = lon
+ new_node.tags = tags
+ if id <= 0
+ # We're creating the node
+ new_node.create_with_history(user)
+ elsif visible
+ # We're updating the node
+ new_node.id = id
+ node.update_from(new_node, user)
+ else
+ # We're deleting the node
+ new_node.id = id
+ node.delete_with_history!(new_node, user)
end
end
- # We always need a new node, based on the data that has been sent to us
- new_node = Node.new
-
- new_node.changeset_id = changeset
- new_node.version = version
- new_node.lat = lat
- new_node.lon = lon
- new_node.tags = tags
- if id <= 0
- # We're creating the node
- new_node.create_with_history(user)
- elsif visible
- # We're updating the node
- node.update_from(new_node, user)
+
+ if id <= 0
+ return [0, "", id, new_node.id, new_node.version]
else
- # We're deleting the node
- node.delete_with_history!(new_node, user)
+ return [0, "", id, node.id, node.version]
end
- end # transaction
-
- if id <= 0
- return [0, id, new_node.id, new_node.version]
- else
- return [0, id, node.id, node.version]
- end
- rescue OSM::APIChangesetAlreadyClosedError => ex
- return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}"]
- rescue OSM::APIVersionMismatchError => ex
- # Really need to check to see whether this is a server load issue, and the
- # last version was in the same changeset, or belongs to the same user, then
- # we can return something different
- return [-3, "You have taken too long to edit, please reload the area"]
- rescue OSM::APIAlreadyDeletedError => ex
- return [-1, "The object has already been deleted"]
- rescue OSM::APIError => ex
- # Some error that we don't specifically catch
- return [-2, "Something really bad happened :-()"]
+ end
end
# Read POI from database
# (only called on revert: POIs are usually read by whichways).
#
- # Returns array of id, long, lat, hash of tags, version.
-
- def getpoi(id,version) #:doc:
- if version>0 then
- n = OldNode.find(id, :conditions=>['version=?',version])
- else
- n = Node.find(id)
- end
+ # Returns array of id, long, lat, hash of tags, (current) version.
+
+ def getpoi(id, timestamp)
+ amf_handle_error("'getpoi' #{id}", "node", id) do
+ id = id.to_i
+ n = Node.where(:id => id).first
+ if n
+ v = n.version
+ n = OldNode.where("node_id = ? AND timestamp <= ?", id, timestamp).unredacted.order("timestamp DESC").first unless timestamp == ""
+ end
- if n
- return [n.id, n.lon, n.lat, n.tags, n.version]
- else
- return [nil, nil, nil, {}, nil]
+ if n
+ return [0, "", id, n.lon, n.lat, n.tags, v]
+ else
+ return [-4, "node", id]
+ end
end
end
- # Delete way and all constituent nodes. Also removes from any relations.
+ # Delete way and all constituent nodes.
# Params:
# * The user token
# * the changeset id
# * the id of the way to change
# * the version of the way that was downloaded
- # * a hash of the id and versions of all the nodes that are in the way, if any
+ # * a hash of the id and versions of all the nodes that are in the way, if any
# of the nodes have been changed by someone else then, there is a problem!
- # Returns 0 (success), unchanged way id.
-
- def deleteway(usertoken, changeset_id, way_id, way_version, node_id_version) #:doc:
- user = getuser(usertoken)
- unless user then return -1,"You are not logged in, so the way could not be deleted." end
-
- way_id = way_id.to_i
- # Need a transaction so that if one item fails to delete, the whole delete fails.
- Way.transaction do
-
- # FIXME: would be good not to make two history entries when removing
- # two nodes from the same relation
- old_way = Way.find(way_id)
- #old_way.unshared_node_ids.each do |n|
- # deleteitemrelations(n, 'node')
- #end
- #deleteitemrelations(way_id, 'way')
-
-
- #way.delete_with_relations_and_nodes_and_history(changeset_id.to_i)
- old_way.unshared_node_ids.each do |node_id|
- # delete the node
- node = Node.find(node_id)
- delete_node = Node.new
- delete_node.version = node_id_version[node_id]
- node.delete_with_history!(delete_node, user)
+ # Returns 0 (success), unchanged way id, new way version, new node versions.
+
+ def deleteway(usertoken, changeset_id, way_id, way_version, deletednodes)
+ amf_handle_error("'deleteway' #{way_id}", "way", way_id) do
+ user = getuser(usertoken)
+ return -1, "You are not logged in, so the way could not be deleted." 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?
+
+ way_id = way_id.to_i
+ nodeversions = {}
+ old_way = nil # returned, so scope it outside the transaction
+ # Need a transaction so that if one item fails to delete, the whole delete fails.
+ Way.transaction do
+ # -- Delete the way
+
+ old_way = Way.find(way_id)
+ delete_way = Way.new
+ delete_way.version = way_version
+ delete_way.changeset_id = changeset_id
+ delete_way.id = way_id
+ old_way.delete_with_history!(delete_way, user)
+
+ # -- Delete unwanted nodes
+
+ deletednodes.each do |id, v|
+ node = Node.find(id.to_i)
+ new_node = Node.new
+ new_node.changeset_id = changeset_id
+ new_node.version = v.to_i
+ new_node.id = id.to_i
+ begin
+ node.delete_with_history!(new_node, user)
+ nodeversions[node.id] = node.version
+ rescue OSM::APIPreconditionFailedError
+ # We don't do anything with the exception as the node is in use
+ # elsewhere and we don't want to delete it
+ end
+ end
end
- # delete the way
- delete_way = Way.new
- delete_way.version = way_version
- old_way.delete_with_history!(delete_way, user)
- end # transaction
- [0, way_id]
- rescue OSM::APIChangesetAlreadyClosedError => ex
- return [-1, "The changeset #{ex.changeset.id} was closed at #{ex.changeset.closed_at}"]
- rescue OSM::APIVersionMismatchError => ex
- # Really need to check to see whether this is a server load issue, and the
- # last version was in the same changeset, or belongs to the same user, then
- # we can return something different
- return [-3, "You have taken too long to edit, please reload the area"]
- rescue OSM::APIAlreadyDeletedError => ex
- return [-1, "The object has already been deleted"]
- rescue OSM::APIError => ex
- # Some error that we don't specifically catch
- return [-2, "Something really bad happened :-()"]
+ [0, "", way_id, old_way.version, nodeversions]
+ end
end
-
# ====================================================================
# Support functions
- # delete a way and its nodes that aren't part of other ways
- # this functionality used to be in the model, however it is specific to amf
- # controller
- #def delete_unshared_nodes(changeset_id, way_id)
-
- # Remove a node or way from all relations
- # FIXME needs version, changeset, and user
- # Fixme make sure this doesn't depend on anything and delete this, as potlatch
- # itself should remove the relations first
- def deleteitemrelations(objid, type, version) #:doc:
- relations = RelationMember.find(:all,
- :conditions => ['member_type = ? and member_id = ?', type, objid],
- :include => :relation).collect { |rm| rm.relation }.uniq
-
- relations.each do |rel|
- rel.members.delete_if { |x| x[0] == type and x[1] == objid }
- # FIXME need to create the new relation
- new_rel = Relation.new
- new_rel.version = version
- new_rel.members = members
- new_rel.changeset = changeset
- rel.delete_with_history(new_rel, user)
+ # Authenticate token
+ # (can also be of form user:pass)
+ # When we are writing to the api, we need the actual user model,
+ # not just the id, hence this abstraction
+
+ def getuser(token)
+ if token =~ /^(.+)\:(.+)$/
+ User.authenticate(:username => Regexp.last_match(1), :password => Regexp.last_match(2))
+ else
+ User.authenticate(:token => token)
end
end
- # Break out node tags into a hash
- # (should become obsolete as of API 0.6)
+ def getlocales
+ @getlocales ||= Locale.list(Dir.glob(Rails.root.join("config", "potlatch", "locales", "*")).collect { |f| File.basename(f, ".yml") })
+ end
- def tagstring_to_hash(a) #:doc:
- tags={}
- Tags.split(a) do |k, v|
- tags[k]=v
+ ##
+ # check that all key-value pairs are valid UTF-8.
+ def tags_ok(tags)
+ tags.each do |k, v|
+ return false unless UTF8.valid? k
+ return false unless UTF8.valid? v
end
- tags
+ true
end
- # Authenticate token
- # (can also be of form user:pass)
- # When we are writing to the api, we need the actual user model,
- # not just the id, hence this abstraction
-
- def getuser(token) #:doc:
- if (token =~ /^(.+)\:(.+)$/) then
- user = User.authenticate(:username => $1, :password => $2)
- else
- user = User.authenticate(:token => token)
- end
- return user
- end
-
- # Send AMF response
-
- def sendresponse(results)
- a,b=results.length.divmod(256)
- render :content_type => "application/x-amf", :text => proc { |response, output|
- # ** move amf writing loop into here -
- # basically we read the messages in first (into an array of some sort),
- # then iterate through that array within here, and do all the AMF writing
- output.write 0.chr+0.chr+0.chr+0.chr+a.chr+b.chr
- results.each do |k,v|
- output.write(v)
+ ##
+ # strip characters which are invalid in XML documents from the strings
+ # in the +tags+ hash.
+ def strip_non_xml_chars(tags)
+ new_tags = {}
+ unless tags.nil?
+ tags.each do |k, v|
+ new_k = k.delete "\000-\037\ufffe\uffff", "^\011\012\015"
+ new_v = v.delete "\000-\037\ufffe\uffff", "^\011\012\015"
+ new_tags[new_k] = new_v
end
- }
+ end
+ new_tags
end
-
# ====================================================================
# Alternative SQL queries for getway/whichways
- def sql_find_ways_in_area(xmin,ymin,xmax,ymax)
- sql=<<-EOF
+ def sql_find_ways_in_area(bbox)
+ sql = <<-SQL
SELECT DISTINCT current_ways.id AS wayid,current_ways.version AS version
FROM current_way_nodes
INNER JOIN current_nodes ON current_nodes.id=current_way_nodes.node_id
INNER JOIN current_ways ON current_ways.id =current_way_nodes.id
- WHERE current_nodes.visible=TRUE
- AND current_ways.visible=TRUE
- AND #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
- EOF
- return ActiveRecord::Base.connection.select_all(sql).collect { |a| [a['wayid'].to_i,a['version'].to_i] }
- end
-
- def sql_find_pois_in_area(xmin,ymin,xmax,ymax)
- pois=[]
- sql=<<-EOF
- SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lon,current_nodes.version
- FROM current_nodes
- LEFT OUTER JOIN current_way_nodes cwn ON cwn.node_id=current_nodes.id
- WHERE current_nodes.visible=TRUE
- AND cwn.id IS NULL
- AND #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "current_nodes.")}
- EOF
+ WHERE current_nodes.visible=TRUE
+ AND current_ways.visible=TRUE
+ AND #{OSM.sql_for_area(bbox, 'current_nodes.')}
+ SQL
+ ActiveRecord::Base.connection.select_all(sql).collect { |a| [a["wayid"].to_i, a["version"].to_i] }
+ end
+
+ def sql_find_pois_in_area(bbox)
+ pois = []
+ sql = <<-SQL
+ SELECT current_nodes.id,current_nodes.latitude*0.0000001 AS lat,current_nodes.longitude*0.0000001 AS lon,current_nodes.version
+ FROM current_nodes
+ LEFT OUTER JOIN current_way_nodes cwn ON cwn.node_id=current_nodes.id
+ WHERE current_nodes.visible=TRUE
+ AND cwn.id IS NULL
+ AND #{OSM.sql_for_area(bbox, 'current_nodes.')}
+ SQL
ActiveRecord::Base.connection.select_all(sql).each do |row|
- poitags={}
+ poitags = {}
ActiveRecord::Base.connection.select_all("SELECT k,v FROM current_node_tags WHERE id=#{row['id']}").each do |n|
- poitags[n['k']]=n['v']
+ poitags[n["k"]] = n["v"]
end
- pois << [row['id'].to_i, row['lon'].to_f, row['lat'].to_f, poitags, row['version'].to_i]
+ pois << [row["id"].to_i, row["lon"].to_f, row["lat"].to_f, poitags, row["version"].to_i]
end
pois
end
-
- def sql_find_relations_in_area_and_ways(xmin,ymin,xmax,ymax,way_ids)
+
+ def sql_find_relations_in_area_and_ways(bbox, way_ids)
# ** It would be more Potlatchy to get relations for nodes within ways
# during 'getway', not here
- sql=<<-EOF
- SELECT DISTINCT cr.id AS relid,cr.version AS version
+ sql = <<-SQL
+ SELECT DISTINCT cr.id AS relid,cr.version AS version
FROM current_relations cr
- INNER JOIN current_relation_members crm ON crm.id=cr.id
- INNER JOIN current_nodes cn ON crm.member_id=cn.id AND crm.member_type='node'
- WHERE #{OSM.sql_for_area(ymin, xmin, ymax, xmax, "cn.")}
- EOF
+ INNER JOIN current_relation_members crm ON crm.id=cr.id
+ INNER JOIN current_nodes cn ON crm.member_id=cn.id AND crm.member_type='Node'
+ WHERE #{OSM.sql_for_area(bbox, 'cn.')}
+ SQL
unless way_ids.empty?
- sql+=<<-EOF
+ sql += <<-SQL
UNION
SELECT DISTINCT cr.id AS relid,cr.version AS version
FROM current_relations cr
INNER JOIN current_relation_members crm ON crm.id=cr.id
- WHERE crm.member_type='way'
+ WHERE crm.member_type='Way'
AND crm.member_id IN (#{way_ids.join(',')})
- EOF
+ SQL
end
- return ActiveRecord::Base.connection.select_all(sql).collect { |a| [a['relid'].to_i,a['version'].to_i] }
+ ActiveRecord::Base.connection.select_all(sql).collect { |a| [a["relid"].to_i, a["version"].to_i] }
end
-
+
def sql_get_nodes_in_way(wayid)
- points=[]
- sql=<<-EOF
- SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,current_nodes.id
- FROM current_way_nodes,current_nodes
- WHERE current_way_nodes.id=#{wayid.to_i}
- AND current_way_nodes.node_id=current_nodes.id
- AND current_nodes.visible=TRUE
+ points = []
+ sql = <<-SQL
+ SELECT latitude*0.0000001 AS lat,longitude*0.0000001 AS lon,current_nodes.id,current_nodes.version
+ FROM current_way_nodes,current_nodes
+ WHERE current_way_nodes.id=#{wayid.to_i}
+ AND current_way_nodes.node_id=current_nodes.id
+ AND current_nodes.visible=TRUE
ORDER BY sequence_id
- EOF
+ SQL
ActiveRecord::Base.connection.select_all(sql).each do |row|
- nodetags={}
+ nodetags = {}
ActiveRecord::Base.connection.select_all("SELECT k,v FROM current_node_tags WHERE id=#{row['id']}").each do |n|
- nodetags[n['k']]=n['v']
+ nodetags[n["k"]] = n["v"]
end
- nodetags.delete('created_by')
- points << [row['lon'].to_f,row['lat'].to_f,row['id'].to_i,nodetags]
+ nodetags.delete("created_by")
+ points << [row["lon"].to_f, row["lat"].to_f, row["id"].to_i, nodetags, row["version"].to_i]
end
points
end
-
+
def sql_get_tags_in_way(wayid)
- tags={}
+ tags = {}
ActiveRecord::Base.connection.select_all("SELECT k,v FROM current_way_tags WHERE id=#{wayid.to_i}").each do |row|
- tags[row['k']]=row['v']
+ tags[row["k"]] = row["v"]
end
tags
end
def sql_get_way_version(wayid)
- ActiveRecord::Base.connection.select_one("SELECT version FROM current_ways WHERE id=#{wayid.to_i}")
+ ActiveRecord::Base.connection.select_one("SELECT version FROM current_ways WHERE id=#{wayid.to_i}")["version"]
end
-end
+ def sql_get_way_user(wayid)
+ ActiveRecord::Base.connection.select_one("SELECT user FROM current_ways,changesets WHERE current_ways.id=#{wayid.to_i} AND current_ways.changeset=changesets.id")["user"]
+ end
+end
projects / rails.git / blobdiff