Add test ListItems response

Not currently functional, but parses succesfully.

cas.go

@@ -0,0 +1,41 @@
+package main
+
+func listItems(e *Envelope) {
+	titleId, err := getKey(e.doc, "TitleId")
+	if err != nil {
+		e.Error(9, "Unable to obtain title.", err)
+	}
+
+	e.AddKVNode("ListResultTotalSize", "1")
+	e.AddCustomType(Items{
+		TitleId: titleId,
+		Contents: ContentsMetadata{
+			TitleIncluded: false,
+			ContentIndex:  1,
+		},
+		Attributes: []Attributes{
+			{
+				Name:  "MaxUserInodes",
+				Value: "10",
+			},
+			{
+				Name:  "itemComment",
+				Value: "Does not catch on fire.",
+			},
+		},
+		Ratings: Ratings{
+			Name:   "Testing",
+			Rating: 1,
+			Age:    13,
+		},
+		Prices: Prices{
+			ItemId: 0,
+			Price: Price{
+				Amount:   1,
+				Currency: "POINTS",
+			},
+			Limits:      LimitStruct(PR),
+			LicenseKind: "PERMANENT",
+		},
+	})
+}

main.go

@@ -96,6 +96,11 @@ func main() {
 		ias.Unauthenticated("Register", register)
 		ias.Authenticated("Unregister", unregister)
 	}
+
+	cas := r.HandleGroup("cas")
+	{
+		cas.Authenticated("ListItems", listItems)
+	}
 	log.Fatal(http.ListenAndServe(readConfig.Address, r.Handle()))
 
 	// From here on out, all special cool things should go into their respective handler function.

structure.go

@@ -163,3 +163,50 @@ type Tickets struct {
 	MigrateCount int      `xml:"MigrateCount"`
 	MigrateLimit int      `xml:"MigrateLimit"`
 }
+
+// Attributes represents a common structure of the same name.
+type Attributes struct {
+	XMLName xml.Name `xml:"Attributes"`
+	Name    string   `xml:"Name"`
+	Value   string   `xml:"Value"`
+}
+
+// ContentsMetadata describes data about contents within a title.
+type ContentsMetadata struct {
+	XMLName       xml.Name `xml:"Contents"`
+	TitleIncluded bool     `xml:"TitleIncluded"`
+	ContentIndex  int      `xml:"ContentIndex"`
+}
+
+// Price holds the price for a title.
+type Price struct {
+	XMLName  xml.Name `xml:"Price"`
+	Amount   int      `xml:"Amount"`
+	Currency string   `xml:"Currency"`
+}
+
+// Prices describes a common structure for listing prices within a title.
+type Prices struct {
+	ItemId      int `xml:"ItemId"`
+	Price       Price
+	Limits      Limits `xml:"Limits"`
+	LicenseKind string `xml:"LicenseKind"`
+}
+
+// Items allows specifying an overview of a title's contents.
+type Items struct {
+	XMLName    xml.Name         `xml:"Items"`
+	TitleId    string           `xml:"TitleId"`
+	Contents   ContentsMetadata `xml:"Contents"`
+	Attributes []Attributes     `xml:"Attribute,omitempty"`
+	Ratings    Ratings          `xml:"Ratings,omitempty"`
+	Prices     Prices           `xml:"Prices,omitempty"`
+}
+
+// Ratings allows specifying the rating of an item across multiple properties.
+type Ratings struct {
+	XMLName xml.Name `xml:"Ratings"`
+	Name    string   `xml:"Name"`
+	Rating  int      `xml:"Rating"`
+	Age     int      `xml:"Age"`
+}