func handleOAuthCallback(oauthClient *oauth.Client, s sessions.Session, w http.ResponseWriter, r *http.Request) {
nextURL := getNextURL(r)
tempToken, err := unmarshalCredentials(s, keyTempToken)
if err != nil {
// missing temp token
params := url.Values{}
params.Add(KeyNextURL, nextURL)
http.Redirect(w, r, PathLogin+"?"+params.Encode(), codeRedirect)
return
}
if tempToken.Token != r.FormValue("oauth_token") {
// TODO: add error handling
log.Fatal("oauth token mismatch")
}
token, _, err := oauthClient.RequestToken(http.DefaultClient, tempToken, r.FormValue("oauth_verifier"))
if err != nil {
// TODO: add error handling
log.Fatal("oauth-callback error:", err)
// http.Redirect(w, r, PathError, codeRedirect)
return
}
// Store the credentials in the session.
marshalCredentials(token, s, keyToken)
http.Redirect(w, r, nextURL, codeRedirect)
}
// You get a token for your App from Twitter. Put this within the App section
// of the JSON token file. The user's token will be requested, then written
// and saved to this file.
func (t *ClientTokens) Token(oc *oauth.Client) (*oauth.Credentials, error) {
if t.TokenFile == "" {
return nil, &ClientTokensError{
Msg: "no token file supplied",
}
}
cf, err := ioutil.ReadFile(t.TokenFile)
if err != nil {
return nil, err
}
if err := json.Unmarshal(cf, t); err != nil {
return nil, err
}
if t.App == nil {
return nil, &ClientTokensError{
Msg: "missing \"App\" token",
}
}
if t.App.Token == "" || t.App.Secret == "" {
return nil, &ClientTokensError{
Msg: "missing app's Token or Secret",
}
}
oc.Credentials = *t.App
var token *oauth.Credentials
if t.User == nil {
token = &oauth.Credentials{}
} else {
token = t.User
}
if token.Token == "" || token.Secret == "" {
tempCredentials, err := oc.RequestTemporaryCredentials(http.DefaultClient, "oob", nil)
if err != nil {
return nil, err
}
url := oc.AuthorizationURL(tempCredentials, nil)
fmt.Fprintf(os.Stdout, "Before we can continue ...\nGo to:\n\n\t%s\n\nAuthorize the application and enter in the verification code: ", url)
var authCode string
fmt.Scanln(&authCode)
token, _, err = oc.RequestToken(http.DefaultClient, tempCredentials, authCode)
if err != nil {
return nil, err
}
// Save the user token within our token file
t.User = token
save, err := json.Marshal(t)
if err != nil {
return nil, err
}
if err := ioutil.WriteFile(t.TokenFile, save, tokenFilePermission); err != nil {
return nil, err
}
}
return token, nil
}