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// Copyright 2018 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package pocket // import "miniflux.app/integration/pocket"
import (
"errors"
"fmt"
"io/ioutil"
"net/url"
"miniflux.app/http/client"
)
// Connector manages the authorization flow with Pocket to get a personal access token.
type Connector struct {
consumerKey string
}
// RequestToken fetches a new request token from Pocket API.
func (c *Connector) RequestToken(redirectURL string) (string, error) {
type req struct {
ConsumerKey string `json:"consumer_key"`
RedirectURI string `json:"redirect_uri"`
}
clt := client.New("https://getpocket.com/v3/oauth/request")
response, err := clt.PostJSON(&req{ConsumerKey: c.consumerKey, RedirectURI: redirectURL})
if err != nil {
return "", fmt.Errorf("pocket: unable to fetch request token: %v", err)
}
if response.HasServerFailure() {
return "", fmt.Errorf("pocket: unable to fetch request token, status=%d", response.StatusCode)
}
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return "", fmt.Errorf("pocket: unable to read response body: %v", err)
}
values, err := url.ParseQuery(string(body))
if err != nil {
return "", fmt.Errorf("pocket: unable to parse response: %v", err)
}
code := values.Get("code")
if code == "" {
return "", errors.New("pocket: code is empty")
}
return code, nil
}
// AccessToken fetches a new access token once the end-user authorized the application.
func (c *Connector) AccessToken(requestToken string) (string, error) {
type req struct {
ConsumerKey string `json:"consumer_key"`
Code string `json:"code"`
}
clt := client.New("https://getpocket.com/v3/oauth/authorize")
response, err := clt.PostJSON(&req{ConsumerKey: c.consumerKey, Code: requestToken})
if err != nil {
return "", fmt.Errorf("pocket: unable to fetch access token: %v", err)
}
if response.HasServerFailure() {
return "", fmt.Errorf("pocket: unable to fetch access token, status=%d", response.StatusCode)
}
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return "", fmt.Errorf("pocket: unable to read response body: %v", err)
}
values, err := url.ParseQuery(string(body))
if err != nil {
return "", fmt.Errorf("pocket: unable to parse response: %v", err)
}
token := values.Get("access_token")
if token == "" {
return "", errors.New("pocket: access_token is empty")
}
return token, nil
}
// AuthorizationURL returns the authorization URL for the end-user.
func (c *Connector) AuthorizationURL(requestToken, redirectURL string) string {
return fmt.Sprintf(
"https://getpocket.com/auth/authorize?request_token=%s&redirect_uri=%s",
requestToken,
redirectURL,
)
}
// NewConnector returns a new Pocket Connector.
func NewConnector(consumerKey string) *Connector {
return &Connector{consumerKey}
}
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