X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/9b4271ed8c0577d23c6d77c4be0ed8a8082dc86c..57e571d241875e867ba5d419fc71cd47c1792a67:/lib/osm.rb

diff --git a/lib/osm.rb b/lib/osm.rb
index eb5afd562..789a5f439 100644
--- a/lib/osm.rb
+++ b/lib/osm.rb
@@ -10,8 +10,8 @@ module OSM
 
   # The base class for API Errors.
   class APIError < RuntimeError
-    def render_opts
-      { :text => "Generic API Error", :status => :internal_server_error, :content_type => "text/plain" }
+    def status
+      :internal_server_error
     end
 
     def to_s
@@ -21,8 +21,12 @@ module OSM
 
   # Raised when an API object is not found.
   class APINotFoundError < APIError
-    def render_opts
-      { :text => "The API wasn't found", :status => :not_found, :content_type => "text/plain" }
+    def status
+      :not_found
+    end
+
+    def to_s
+      "Object not found"
     end
   end
 
@@ -31,9 +35,9 @@ module OSM
     def initialize(message = "")
       @message = message
     end
-    
-    def render_opts
-      { :text => "Precondition failed: #{@message}", :status => :precondition_failed, :content_type => "text/plain" }
+
+    def status
+      :precondition_failed    
     end
 
     def to_s
@@ -43,15 +47,29 @@ module OSM
 
   # Raised when to delete an already-deleted object.
   class APIAlreadyDeletedError < APIError
-    def render_opts
-      { :text => "The object has already been deleted", :status => :gone, :content_type => "text/plain" }
+    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, :content_type => "text/plain" }
+    def status
+      :conflict
+    end
+
+    def to_s
+      "The user doesn't own that changeset"
     end
   end
 
@@ -62,20 +80,24 @@ module OSM
     end
 
     attr_reader :changeset
-    
-    def render_opts
-      { :text => "The changeset #{@changeset.id} was closed at #{@changeset.closed_at}.", :status => :conflict, :content_type => "text/plain" }
+
+    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 render_opts
-      { :text => "You need to supply a changeset to be able to make a change", :status => :conflict, :content_type => "text/plain" }
+    def status
+      :conflict
     end
-    
+
     def to_s
-       "You need to supply a changeset to be able to make a change"
+      "You need to supply a changeset to be able to make a change"
     end
   end
 
@@ -85,10 +107,13 @@ module OSM
     def initialize(provided, allowed)
       @provided, @allowed = provided, allowed
     end
-    
-    def render_opts
-      { :text => "Changeset mismatch: Provided #{@provided} but only " +
-      "#{@allowed} is allowed.", :status => :conflict, :content_type => "text/plain" }
+
+    def status
+      :conflict
+    end
+
+    def to_s
+      "Changeset mismatch: Provided #{@provided} but only #{@allowed} is allowed"
     end
   end
   
@@ -98,10 +123,13 @@ module OSM
     def initialize(provided)
       @provided = provided
     end
+
+    def status
+      :bad_request
+    end
     
-    def render_opts
-      { :text => "Unknown action #{@provided}, choices are create, modify, delete.",
-      :status => :bad_request, :content_type => "text/plain" }
+    def to_s
+      "Unknown action #{@provided}, choices are create, modify, delete"
     end
   end
 
@@ -112,9 +140,12 @@ module OSM
       @model, @xml, @message = model, xml, message
     end
 
-    def render_opts
-      { :text => "Cannot parse valid #{@model} from xml string #{@xml}. #{@message}",
-      :status => :bad_request, :content_type => "text/plain" }
+    def status
+      :bad_request
+    end
+
+    def to_s
+      "Cannot parse valid #{@model} from xml string #{@xml}. #{@message}"
     end
   end
 
@@ -126,14 +157,12 @@ module OSM
 
     attr_reader :provided, :latest, :id, :type
 
-    def render_opts
-      { :text => "Version mismatch: Provided " + provided.to_s +
-        ", server had: " + latest.to_s + " of " + type + " " + id.to_s, 
-        :status => :conflict, :content_type => "text/plain" }
+    def status
+      :conflict
     end
-    
+
     def to_s
-       "Version mismatch: Provided " + provided.to_s + ", server had: " + latest.to_s + " of " + type + " " + id.to_s
+      "Version mismatch: Provided #{provided}, server had: #{latest} of #{type} #{id}"
     end
   end
 
@@ -146,9 +175,12 @@ module OSM
 
     attr_reader :type, :id, :tag_key
 
-    def render_opts
-      { :text => "Element #{@type}/#{@id} has duplicate tags with key #{@tag_key}.",
-        :status => :bad_request, :content_type => "text/plain" }
+    def status
+      :bad_request
+    end
+
+    def to_s
+      "Element #{@type}/#{@id} has duplicate tags with key #{@tag_key}"
     end
   end
   
@@ -160,10 +192,13 @@ module OSM
     end
     
     attr_reader :provided, :max
+
+    def status
+      :bad_request
+    end
     
-    def render_opts
-      { :text => "You tried to add #{provided} nodes to the way, however only #{max} are allowed",
-        :status => :bad_request, :content_type => "text/plain" }
+    def to_s
+      "You tried to add #{provided} nodes to the way, however only #{max} are allowed"
     end
   end
 
@@ -174,8 +209,56 @@ module OSM
       @message = message
     end
 
-    def render_opts
-      { :text => @message, :content_type => "text/plain", :status => :bad_request }
+    def status
+      :bad_request
+    end
+
+    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
 
@@ -251,6 +334,11 @@ module OSM
       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
@@ -356,16 +444,8 @@ module OSM
       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
-        end
+        country = Country.find_by_code(country)
+        return { :minlon => country.min_lon, :minlat => country.min_lat, :maxlon => country.max_lon, :maxlat => country.max_lat }
       end
     end