Merge pull request #179 from rapid7/bug/178_filtered_asset_site_ids

Update FilteredAsset to support site_id in Nexpose 5.13 and later

lib/nexpose/filter.rb

@@ -375,7 +375,11 @@ class FilteredAsset
     attr_reader :vuln_count
     attr_reader :risk_score
 
+    # The first Site ID returned for this asset.
+    # Not recommended if Asset Linking feature is enabled.
     attr_reader :site_id
+    # Array of Site IDs for the asset. Use when Asset Linking is enabled.
+    attr_reader :site_ids
     attr_reader :last_scan
 
     def initialize(json)
@@ -387,7 +391,8 @@ def initialize(json)
       @malware_count = json['malwareCount'].to_i
       @vuln_count = json['vulnCount'].to_i
       @risk_score = json['riskScore'].to_f
-      @site_id = json['siteID']
+      @site_ids = json['sitePermissions'].map { |site| site['siteID'] }
+      @site_id = @site_ids.first
       @last_scan = Time.at(json['lastScanDate'].to_i / 1000)
     end
   end