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)
}
Esempio n. 2
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// 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
}