freedom-legacy/auth.go

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2018-12-28 02:27:34 +00:00
package main
import (
"fmt"
"log"
"net/http"
"github.com/zmb3/spotify"
)
var oauthToken string
func StartAuthorizationCodeFlow() (authClient *spotify.Client) {
// first start an HTTP server
http.HandleFunc("/callback", completeAuth)
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
// log.Println("Got request for:", r.URL.String())
})
go http.ListenAndServe(":8080", nil)
url := auth.AuthURL(state)
fmt.Println("Please log in to Spotify by visiting the following page in your browser:\n", url)
client := <-ch
oauthToken = extractToken(client)
// use the client to make calls that require authorization
user, spotify_auth_err := client.CurrentUser()
if spotify_auth_err != nil {
log.Fatal(spotify_auth_err)
}
fmt.Println("You are logged in as:", user.ID)
return client
}
func completeAuth(w http.ResponseWriter, r *http.Request) {
tok, err := auth.Token(state, r)
if err != nil {
http.Error(w, "Couldn't get token", http.StatusForbidden)
log.Fatal(err)
}
if st := r.FormValue("state"); st != state {
http.NotFound(w, r)
log.Fatalf("State mismatch: %s != %s\n", st, state)
}
// use the token to get an authenticated client
client := auth.NewClient(tok)
status = 2
w.Header().Set("Content-Type", "text/html; charset=utf-8")
fmt.Fprint(w, "test <script>window.close()</script>")
ch <- &client
}
func extractToken(client *spotify.Client) (tokenString string) {
token, err := client.Token()
if err != nil {
log.Fatal(err)
}
return token.AccessToken
}