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[rails.git] / app / controllers / api_controller.rb

diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
index bb135a01f55a7733de3fb75f22a54848844007bf..44efdc0711f2cb39d53e8b59d33d58e8583dca5b 100644 (file)
--- a/app/controllers/api_controller.rb
+++ b/app/controllers/api_controller.rb
@@ -1,144 +1,88 @@
 class ApiController < ApplicationController
 class ApiController < ApplicationController

+  skip_before_action :verify_authenticity_token

 
 

-  before_filter :authorize
-  after_filter :compress_output
+  private

 
 

-  helper :user
-  model :user
+  def authorize(realm = "Web Password", errormessage = "Couldn't authenticate you")
+    # make the current_user object from any auth sources we have
+    setup_user_auth

 
 

-  def authorize_web
-    @current_user = User.find_by_token(session[:token])
-  end
-
-  # The maximum area you're allowed to request, in square degrees
-  MAX_REQUEST_AREA = 0.25
-
-  def map
-    GC.start
-    response.headers["Content-Type"] = 'text/xml'
-    # Figure out the bbox
-    bbox = params['bbox']
-    unless bbox and bbox.count(',') == 3
-      report_error("The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat")
-      return
-    end
-
-    bbox = bbox.split(',')
-
-    min_lon = bbox[0].to_f
-    min_lat = bbox[1].to_f
-    max_lon = bbox[2].to_f
-    max_lat = bbox[3].to_f
-
-    # check the bbox is sane
-    unless min_lon <= max_lon
-      report_error("The minimum longitude must be less than the maximum longitude, but it wasn't")
-      return
-    end
-    unless min_lat <= max_lat
-      report_error("The minimum latitude must be less than the maximum latitude, but it wasn't")
-      return
-    end
-    unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90
-      report_error("The latitudes must be between -90 and 90, and longitudes between -180 and 180")
-      return
-    end
-
-    # check the bbox isn't too large
-    requested_area = (max_lat-min_lat)*(max_lon-min_lon)
-    if requested_area > MAX_REQUEST_AREA
-      report_error("The maximum bbox size is " + MAX_REQUEST_AREA.to_s + ", and your request was too large. Either request a smaller area, or use planet.osm")
-      return
-    end
-
-    # get all the nodes
-    nodes = Node.find(:all, :conditions => ['latitude > ? AND longitude > ? AND latitude < ? AND longitude < ? AND visible = 1', min_lat, min_lon, max_lat, max_lon])
-
-    node_ids = nodes.collect {|node| node.id }
-
-    if node_ids.length > 50_000
-      report_error("You requested too many nodes (limit is 50,000). Either request a smaller area, or use planet.osm")
+    # handle authenticate pass/fail
+    unless current_user
+      # no auth, the user does not exist or the password was wrong
+      response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
+      render :plain => errormessage, :status => :unauthorized
+      false

     end
     end

+  end

 
 

-    # grab the segments
-    segments = Array.new
-    if node_ids.length > 0
-      node_ids_sql = "(#{node_ids.join(',')})"
-      # get the referenced segments
-      segments = Segment.find_by_sql "select * from current_segments where visible = 1 and (node_a in #{node_ids_sql} or node_b in #{node_ids_sql})"
+  def current_ability
+    # Use capabilities from the oauth token if it exists and is a valid access token
+    if Authenticator.new(self, [:token]).allow?
+      ApiAbility.new(nil).merge(ApiCapability.new(current_token))
+    else
+      ApiAbility.new(current_user)

     end
     end

-    # see if we have any missing nodes
-    segments_nodes = segments.collect {|segment| segment.node_a }
-    segments_nodes += segments.collect {|segment| segment.node_b }
-
-    segments_nodes.uniq!
-
-    missing_nodes = segments_nodes - node_ids
-
-    # get missing nodes if there are any
-    nodes += Node.find(missing_nodes) if missing_nodes.length > 0
-
-    doc = OSM::API.new.get_xml_doc
-
-    # get ways
-    # find which ways are needed
-    segment_ids = segments.collect {|segment| segment.id }
-    ways = Array.new
-    if segment_ids.length > 0
-      way_segments = WaySegment.find_all_by_segment_id(segment_ids)
-      way_ids = way_segments.collect {|way_segment| way_segment.id }
-      ways = Way.find(way_ids) # NB: doesn't pick up segments, tags from db until accessed via way.way_segments etc.
-
-      # seg_ids = way_segments.collect {|way_segment| way_segment.segment_id }
-
-      list_of_way_segs = ways.collect {|way| way.way_segments}
-      list_of_way_segs.flatten!
-
-      list_of_way_segments = list_of_way_segs.collect { |way_seg| way_seg.segment_id }
+  end

 
 

+  def deny_access(_exception)
+    if current_token
+      set_locale
+      report_error t("oauth.permissions.missing"), :forbidden
+    elsif current_user
+      head :forbidden
+    else
+      realm = "Web Password"
+      errormessage = "Couldn't authenticate you"
+      response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
+      render :plain => errormessage, :status => :unauthorized

     end
     end

+  end

 
 

-    segments_to_fetch = list_of_way_segments.uniq - segment_ids
+  def gpx_status
+    status = database_status
+    status = "offline" if status == "online" && Settings.status == "gpx_offline"
+    status
+  end

 
 

-    if segments_to_fetch.length > 0
-      segments += Segment.find(segments_to_fetch)
+  ##
+  # sets up the current_user for use by other methods. this is mostly called
+  # from the authorize method, but can be called elsewhere if authorisation
+  # is optional.
+  def setup_user_auth
+    # try and setup using OAuth
+    unless Authenticator.new(self, [:token]).allow?
+      username, passwd = get_auth_data # parse from headers
+      # authenticate per-scheme
+      self.current_user = if username.nil?
+                            nil # no authentication provided - perhaps first connect (client should retry after 401)
+                          elsif username == "token"
+                            User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+                          else
+                            User.authenticate(:username => username, :password => passwd) # basic auth
+                          end

     end
 
     end
 

-    # get more nodes
-    #
-
-    segments_nodes = segments.collect {|segment| segment.node_a }
-    segments_nodes += segments.collect {|segment| segment.node_b }
-
-    node_ids_a = nodes.collect {|node| node.id }
-
-    nodes_to_get = segments_nodes - node_ids_a
-    nodes += Node.find(nodes_to_get) if nodes_to_get.length > 0
-
-    visible_nodes = {}
-    user_display_name_cache = {}
-
-    nodes.each do |node|
-      if node.visible?
-        doc.root << node.to_xml_node(user_display_name_cache)
-        visible_nodes[node.id] = node
+    # have we identified the user?
+    if current_user
+      # check if the user has been banned
+      user_block = current_user.blocks.active.take
+      unless user_block.nil?
+        set_locale
+        if user_block.zero_hour?
+          report_error t("application.setup_user_auth.blocked_zero_hour"), :forbidden
+        else
+          report_error t("application.setup_user_auth.blocked"), :forbidden
+        end

       end
       end

-    end

 
 

-    visible_segments = {}
-
-    segments.each do |segment|
-      if visible_nodes[segment.node_a] and visible_nodes[segment.node_b] and segment.visible?
-        doc.root << segment.to_xml_node(user_display_name_cache) 
-        visible_segments[segment.id] = segment
+      # if the user hasn't seen the contributor terms then don't
+      # allow editing - they have to go to the web site and see
+      # (but can decline) the CTs to continue.
+      if !current_user.terms_seen && flash[:skip_terms].nil?
+        set_locale
+        report_error t("application.setup_user_auth.need_to_see_terms"), :forbidden

       end
     end
       end
     end

-
-    ways.each do |way|
-      doc.root << way.to_xml_node(visible_segments, user_display_name_cache) if way.visible?
-    end 
-
-    render :text => doc.to_s
-

   end
 end
   end
 end