X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/e1b205913c9afd6b41684add7308cef4613112e2..0884e7b43192bf924f505d12e3d9810e61da7ac9:/lib/osm.rb?ds=sidebyside diff --git a/lib/osm.rb b/lib/osm.rb index 3ddf10f98..c85abc0f3 100644 --- a/lib/osm.rb +++ b/lib/osm.rb @@ -6,58 +6,266 @@ module OSM require 'rexml/text' require 'xml/libxml' require 'digest/md5' - require 'RMagick' + require 'nokogiri' + + if defined?(SystemTimer) + Timer = SystemTimer + else + require 'timeout' + Timer = Timeout + end # The base class for API Errors. class APIError < RuntimeError - def render_opts - { :text => "", :status => :internal_server_error } + def status + :internal_server_error + end + + def to_s + "Generic API Error" end end # Raised when an API object is not found. class APINotFoundError < APIError + def status + :not_found + end + + def to_s + "Object not found" + end end # Raised when a precondition to an API action fails sanity check. class APIPreconditionFailedError < APIError - def render_opts - { :text => "", :status => :precondition_failed } + def initialize(message = "") + @message = message + end + + def status + :precondition_failed + end + + def to_s + "Precondition failed: #{@message}" end end # Raised when to delete an already-deleted object. class APIAlreadyDeletedError < APIError - def render_opts - { :text => "", :status => :gone } + def initialize(object = "object", object_id = "") + @object, @object_id = object, object_id + end + + attr_reader :object, :object_id + + def status + :gone + end + + def to_s + "The #{object} with the id #{object_id} has already been deleted" end end # Raised when the user logged in isn't the same as the changeset class APIUserChangesetMismatchError < APIError - def render_opts - { :text => "The user doesn't own that changeset", :status => :conflict } + def status + :conflict + end + + def to_s + "The user doesn't own that changeset" end end # Raised when the changeset provided is already closed class APIChangesetAlreadyClosedError < APIError - def render_opts - { :text => "The supplied changeset has already been closed", :status => :conflict } + def initialize(changeset) + @changeset = changeset + end + + attr_reader :changeset + + def status + :conflict + end + + def to_s + "The changeset #{@changeset.id} was closed at #{@changeset.closed_at}" + end + end + + # Raised when a change is expecting a changeset, but the changeset doesn't exist + class APIChangesetMissingError < APIError + def status + :conflict + end + + def to_s + "You need to supply a changeset to be able to make a change" + end + end + + # Raised when a diff is uploaded containing many changeset IDs which don't match + # the changeset ID that the diff was uploaded to. + class APIChangesetMismatchError < APIError + def initialize(provided, allowed) + @provided, @allowed = provided, allowed + end + + def status + :conflict + end + + def to_s + "Changeset mismatch: Provided #{@provided} but only #{@allowed} is allowed" + end + end + + # Raised when a diff upload has an unknown action. You can only have create, + # modify, or delete + class APIChangesetActionInvalid < APIError + def initialize(provided) + @provided = provided + end + + def status + :bad_request + end + + def to_s + "Unknown action #{@provided}, choices are create, modify, delete" + end + end + + # Raised when bad XML is encountered which stops things parsing as + # they should. + class APIBadXMLError < APIError + def initialize(model, xml, message="") + @model, @xml, @message = model, xml, message + end + + def status + :bad_request + end + + def to_s + "Cannot parse valid #{@model} from xml string #{@xml}. #{@message}" end end # Raised when the provided version is not equal to the latest in the db. class APIVersionMismatchError < APIError - def initialize(provided, latest) - @provided, @latest = provided, latest + def initialize(id, type, provided, latest) + @id, @type, @provided, @latest = id, type, provided, latest + end + + attr_reader :provided, :latest, :id, :type + + def status + :conflict + end + + def to_s + "Version mismatch: Provided #{provided}, server had: #{latest} of #{type} #{id}" + end + end + + # raised when a two tags have a duplicate key string in an element. + # this is now forbidden by the API. + class APIDuplicateTagsError < APIError + def initialize(type, id, tag_key) + @type, @id, @tag_key = type, id, tag_key + end + + attr_reader :type, :id, :tag_key + + def status + :bad_request + end + + def to_s + "Element #{@type}/#{@id} has duplicate tags with key #{@tag_key}" + end + end + + # Raised when a way has more than the configured number of way nodes. + # This prevents ways from being to long and difficult to work with + class APITooManyWayNodesError < APIError + def initialize(id, provided, max) + @id, @provided, @max = id, provided, max + end + + attr_reader :id, :provided, :max + + def status + :bad_request + end + + def to_s + "You tried to add #{provided} nodes to way #{id}, however only #{max} are allowed" + end + end + + ## + # raised when user input couldn't be parsed + class APIBadUserInput < APIError + def initialize(message) + @message = message end - attr_reader :provided, :latest + def status + :bad_request + end - def render_opts - { :text => "Version mismatch: Provided " + provided.to_s + - ", server had: " + latest.to_s, :status => :bad_request } + def to_s + @message + end + end + + ## + # raised when bounding box is invalid + class APIBadBoundingBox < APIError + def initialize(message) + @message = message + end + + def status + :bad_request + end + + def to_s + @message + end + end + + ## + # raised when an API call is made using a method not supported on that URI + class APIBadMethodError < APIError + def initialize(supported_method) + @supported_method = supported_method + end + + def status + :method_not_allowed + end + + def to_s + "Only method #{@supported_method} is supported on this URI" + end + end + + ## + # raised when an API call takes too long + class APITimeoutError < APIError + def status + :request_timeout + end + + def to_s + "Request timed out" end end @@ -126,19 +334,31 @@ module OSM # get the worst case bounds for a given radius from the base position def bounds(radius) latradius = 2 * asin(sqrt(sin(radius / 6372.795 / 2) ** 2)) - lonradius = 2 * asin(sqrt(sin(radius / 6372.795 / 2) ** 2 / cos(@lat) ** 2)) + + begin + lonradius = 2 * asin(sqrt(sin(radius / 6372.795 / 2) ** 2 / cos(@lat) ** 2)) + rescue Errno::EDOM + lonradius = PI + end + minlat = (@lat - latradius) * 180 / PI maxlat = (@lat + latradius) * 180 / PI minlon = (@lon - lonradius) * 180 / PI maxlon = (@lon + lonradius) * 180 / PI + return { :minlat => minlat, :maxlat => maxlat, :minlon => minlon, :maxlon => maxlon } end + + # get the SQL to use to calculate distance + def sql_for_distance(lat_field, lon_field) + "6372.795 * 2 * asin(sqrt(power(sin((radians(#{lat_field}) - #{@lat}) / 2), 2) + cos(#{@lat}) * cos(radians(#{lat_field})) * power(sin((radians(#{lon_field}) - #{@lon})/2), 2)))" + end end class GeoRSS def initialize(feed_title='OpenStreetMap GPS Traces', feed_description='OpenStreetMap GPS Traces', feed_url='http://www.openstreetmap.org/traces/') @doc = XML::Document.new - @doc.encoding = 'UTF-8' + @doc.encoding = XML::Encoding::UTF_8 rss = XML::Node.new 'rss' @doc.root = rss @@ -224,31 +444,29 @@ module OSM class API def get_xml_doc doc = XML::Document.new - doc.encoding = 'UTF-8' + doc.encoding = XML::Encoding::UTF_8 root = XML::Node.new 'osm' - root['version'] = API_VERSION - root['generator'] = 'OpenStreetMap server' + root['version'] = API_VERSION.to_s + root['generator'] = GENERATOR doc.root = root return doc end end - def self.IPLocation(ip_address) - Timeout::timeout(4) do - Net::HTTP.start('api.hostip.info') do |http| - country = http.get("/country.php?ip=#{ip_address}").body - country = "GB" if country == "UK" - Net::HTTP.start('ws.geonames.org') do |http| - xml = REXML::Document.new(http.get("/countryInfo?country=#{country}").body) - xml.elements.each("geonames/country") do |ele| - minlon = ele.get_text("bBoxWest").to_s - minlat = ele.get_text("bBoxSouth").to_s - maxlon = ele.get_text("bBoxEast").to_s - maxlat = ele.get_text("bBoxNorth").to_s - return { :minlon => minlon, :minlat => minlat, :maxlon => maxlon, :maxlat => maxlat } - end + def self.IPToCountry(ip_address) + Timer.timeout(4) do + ipinfo = Quova::IpInfo.new(ip_address) + + if ipinfo.status == Quova::Success then + country = ipinfo.country_code + else + Net::HTTP.start('api.hostip.info') do |http| + country = http.get("/country.php?ip=#{ip_address}").body + country = "GB" if country == "UK" end end + + return country.upcase end return nil @@ -256,6 +474,16 @@ module OSM return nil end + def self.IPLocation(ip_address) + code = OSM.IPToCountry(ip_address) + + if code and country = Country.find_by_code(code) + return { :minlon => country.min_lon, :minlat => country.min_lat, :maxlon => country.max_lon, :maxlat => country.max_lat } + end + + return nil + end + # Construct a random token of a given length def self.make_token(length = 30) chars = 'abcdefghijklmnopqrtuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' @@ -275,15 +503,38 @@ module OSM end # Return an SQL fragment to select a given area of the globe - def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix = nil) - tilesql = QuadTile.sql_for_area(minlat, minlon, maxlat, maxlon, prefix) - minlat = (minlat * 10000000).round - minlon = (minlon * 10000000).round - maxlat = (maxlat * 10000000).round - maxlon = (maxlon * 10000000).round - - return "#{tilesql} AND #{prefix}latitude BETWEEN #{minlat} AND #{maxlat} AND #{prefix}longitude BETWEEN #{minlon} AND #{maxlon}" + def self.sql_for_area(bbox, prefix = nil) + tilesql = QuadTile.sql_for_area(bbox, prefix) + bbox = bbox.to_scaled + + return "#{tilesql} AND #{prefix}latitude BETWEEN #{bbox.min_lat} AND #{bbox.max_lat} " + + "AND #{prefix}longitude BETWEEN #{bbox.min_lon} AND #{bbox.max_lon}" end + # Return a spam score for a chunk of text + def self.spam_score(text) + link_count = 0 + link_size = 0 + doc = Nokogiri::HTML(Rinku.auto_link(text, :urls)) + + if doc.content.length > 0 + doc.xpath("//a").each do |link| + link_count += 1 + link_size += link.content.length + end + + link_proportion = link_size.to_f / doc.content.length.to_f + else + link_proportion = 0 + end + + return [link_proportion - 0.2, 0.0].max * 200 + link_count * 20 + end + + def self.legal_text_for_country(country_code) + file_name = File.join(Rails.root, "config", "legales", country_code.to_s + ".yml") + file_name = File.join(Rails.root, "config", "legales", DEFAULT_LEGALE + ".yml") unless File.exist? file_name + YAML::load_file(file_name) + end end