forked from muesli/beehive
/
facebookbeefactory.go
184 lines (165 loc) 路 5.01 KB
/
facebookbeefactory.go
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/*
* Copyright (C) 2017 Christian Muehlhaeuser
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Christian Muehlhaeuser <muesli@gmail.com>
*/
package facebookbee
import (
"fmt"
"log"
"net/url"
"path"
"strings"
"golang.org/x/oauth2"
oauth2fb "golang.org/x/oauth2/facebook"
"github.com/muesli/beehive/api"
"github.com/muesli/beehive/bees"
)
// FacebookBeeFactory is a factory for FacebookBees.
type FacebookBeeFactory struct {
bees.BeeFactory
}
// New returns a new Bee instance configured with the supplied options.
func (factory *FacebookBeeFactory) New(name, description string, options bees.BeeOptions) bees.BeeInterface {
bee := FacebookBee{
Bee: bees.NewBee(name, factory.ID(), description, options),
}
bee.ReloadOptions(options)
return &bee
}
// ID returns the ID of this Bee.
func (factory *FacebookBeeFactory) ID() string {
return "facebookbee"
}
// Name returns the name of this Bee.
func (factory *FacebookBeeFactory) Name() string {
return "Facebook"
}
// Description returns the description of this Bee.
func (factory *FacebookBeeFactory) Description() string {
return "Posts and reacts to events in your Facebook timeline"
}
// Image returns the filename of an image for this Bee.
func (factory *FacebookBeeFactory) Image() string {
return factory.ID() + ".png"
}
// LogoColor returns the preferred logo background color (used by the admin interface).
func (factory *FacebookBeeFactory) LogoColor() string {
return "#3a5b9b"
}
// OAuth2AccessToken returns the oauth2 access token.
func (factory *FacebookBeeFactory) OAuth2AccessToken(id, secret, code string) (*oauth2.Token, error) {
// Get facebook access token.
conf := &oauth2.Config{
ClientID: id,
ClientSecret: secret,
RedirectURL: api.CanonicalURL().String() + "/" + path.Join("oauth2", factory.ID(), id, secret),
Scopes: []string{"public_profile", "publish_actions"},
Endpoint: oauth2fb.Endpoint,
}
token, err := conf.Exchange(oauth2.NoContext, code)
if err != nil {
fmt.Println("Error:", err)
return nil, err
}
return token, nil
}
// Options returns the options available to configure this Bee.
func (factory *FacebookBeeFactory) Options() []bees.BeeOptionDescriptor {
conf := &oauth2.Config{
ClientID: "__client_id__",
ClientSecret: "__client_secret__",
RedirectURL: api.CanonicalURL().String() + "/" + path.Join("oauth2", factory.ID(), "__client_id__", "__client_secret__"),
Scopes: []string{"public_profile", "publish_actions"},
Endpoint: oauth2fb.Endpoint,
}
u, err := url.Parse(conf.Endpoint.AuthURL)
if err != nil {
log.Fatal("Parse:", err)
}
parameters := url.Values{}
parameters.Add("client_id", conf.ClientID)
parameters.Add("scope", strings.Join(conf.Scopes, " "))
parameters.Add("redirect_uri", conf.RedirectURL)
parameters.Add("response_type", "code")
parameters.Add("state", "beehive")
u.RawQuery = parameters.Encode()
opts := []bees.BeeOptionDescriptor{
{
Name: "client_id",
Description: "App ID for the Facebook API",
Type: "string",
},
{
Name: "client_secret",
Description: "App Secret for the Facebook API",
Type: "string",
},
{
Name: "access_token",
Description: "Access token for the Facebook API",
Type: "oauth2:" + u.String(),
},
}
return opts
}
// Actions describes the available actions provided by this Bee.
func (factory *FacebookBeeFactory) Actions() []bees.ActionDescriptor {
actions := []bees.ActionDescriptor{
{
Namespace: factory.Name(),
Name: "post",
Description: "Submit a new post",
Options: []bees.PlaceholderDescriptor{
{
Name: "text",
Description: "Text to post",
Type: "string",
Mandatory: true,
},
},
},
}
return actions
}
// Events describes the available events provided by this Bee.
func (factory *FacebookBeeFactory) Events() []bees.EventDescriptor {
events := []bees.EventDescriptor{
{
Namespace: factory.Name(),
Name: "posted",
Description: "is triggered when you posted something",
Options: []bees.PlaceholderDescriptor{
{
Name: "text",
Description: "text content of the post",
Type: "string",
},
{
Name: "id",
Description: "ID of the post",
Type: "string",
},
},
},
}
return events
}
func init() {
f := FacebookBeeFactory{}
bees.RegisterFactory(&f)
}