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|
package main
import (
"database/sql/driver"
"encoding/json"
"encoding/xml"
"fmt"
"net/http"
)
type Api interface {
AuthGetToken(*http.Request) ApiResponse
AuthGetSession(*http.Request) ApiResponse
AuthGetMobileSession(*http.Request) ApiResponse
TrackScrobble(*http.Request) (ApiResponse, error)
}
type ApiResponse interface {
}
type Name struct {
XMLName xml.Name
}
type Token struct {
Name
string
}
type LFMResponse struct {
XMLName xml.Name `xml:"lfm" json:"-"`
Status string `xml:"status,attr" json:"-"`
Response ApiResponse `json:"scrobbles"`
}
type Attrs struct {
Accepted int `xml:"accepted,attr" json:"accepted"`
Ignored int `xml:"ignored,attr" json:"ignored"`
}
type Scrobbles struct {
XMLName xml.Name `xml:"scrobbles" json:"-"`
Scrobbles []Scrobble `xml:"scrobble" json:"scrobble"`
Attrs `json:"@attr"`
}
type Correctable struct {
Name string `xml:",chardata" json:"#text"`
Corrected int `xml:"corrected,attr" json:"corrected"`
}
func (field Correctable) Value() (driver.Value, error) {
return field.Name, nil
}
func NewCorrectable(name string) Correctable {
return Correctable{
Name: name,
}
}
func (field Correctable) String() string {
return field.Name
}
func (n Name) getName() string {
return n.XMLName.Local
}
func (store *SqlStore) AuthGetToken(r *http.Request) ApiResponse {
token := randomToken(16)
response := struct {
Token string `xml:"token" json:"token"`
}{Token: token}
return response
}
func (store *SqlStore) AuthGetMobileSession(r *http.Request) ApiResponse {
return struct{}{}
}
func (store *SqlStore) AuthGetSession(r *http.Request) ApiResponse {
var response struct {
Session *Session `json:"session"`
}
session := &Session{
User: "thibauthorel",
Client: r.FormValue("api_key"),
Protocol: "2.0",
Key: randomToken(16),
}
store.PutSession(session)
response.Session = session
return response
}
func (store *SqlStore) TrackScrobble(r *http.Request) (ApiResponse, error) {
if session, err := store.GetSession(r.FormValue("sk")); err != nil {
fmt.Printf("%v\n", err)
return struct{}{}, err
} else {
scrobbles, ignored := parseScrobbles(r.Form, session)
store.PutScrobbles(scrobbles)
return Scrobbles{Scrobbles: scrobbles,
Attrs: Attrs{len(scrobbles), ignored}}, nil
}
}
func ApiHandler(ds DataStore, w http.ResponseWriter, r *http.Request) {
method := r.FormValue("method")
response := LFMResponse{Status: "ok"}
switch method {
case "auth.getToken":
response.Response = ds.AuthGetToken(r)
case "auth.getSession":
response.Response = ds.AuthGetSession(r)
case "track.scrobble":
if r, err := ds.TrackScrobble(r); err != nil {
fmt.Printf("%v\n", err)
} else {
response.Response = r
}
}
var text []byte
switch r.FormValue("format") {
case "json":
text, _ = json.Marshal(response)
default:
text, _ = xml.Marshal(response)
}
fmt.Printf("%s\n", text)
fmt.Fprint(w, xml.Header)
w.Write(text)
}
|
