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123 lines
3.3 KiB
Go
123 lines
3.3 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package wallabag // import "miniflux.app/integration/wallabag"
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/url"
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"miniflux.app/http/client"
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)
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// Client represents a Wallabag client.
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type Client struct {
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baseURL string
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clientID string
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clientSecret string
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username string
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password string
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}
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// NewClient returns a new Wallabag client.
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func NewClient(baseURL, clientID, clientSecret, username, password string) *Client {
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return &Client{baseURL, clientID, clientSecret, username, password}
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}
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// AddEntry sends a link to Wallabag.
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// Pass an empty string in `content` to let Wallabag fetch the article content.
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func (c *Client) AddEntry(link, title, content string) error {
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if c.baseURL == "" || c.clientID == "" || c.clientSecret == "" || c.username == "" || c.password == "" {
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return fmt.Errorf("wallabag: missing credentials")
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}
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accessToken, err := c.getAccessToken()
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if err != nil {
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return err
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}
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return c.createEntry(accessToken, link, title, content)
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}
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func (c *Client) createEntry(accessToken, link, title, content string) error {
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endpoint, err := getAPIEndpoint(c.baseURL, "/api/entries.json")
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if err != nil {
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return fmt.Errorf("wallbag: unable to get entries endpoint: %v", err)
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}
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clt := client.New(endpoint)
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clt.WithAuthorization("Bearer " + accessToken)
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response, err := clt.PostJSON(map[string]string{"url": link, "title": title, "content": content})
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if err != nil {
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return fmt.Errorf("wallabag: unable to post entry: %v", err)
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}
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if response.HasServerFailure() {
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return fmt.Errorf("wallabag: request failed, status=%d", response.StatusCode)
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}
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return nil
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}
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func (c *Client) getAccessToken() (string, error) {
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values := url.Values{}
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values.Add("grant_type", "password")
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values.Add("client_id", c.clientID)
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values.Add("client_secret", c.clientSecret)
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values.Add("username", c.username)
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values.Add("password", c.password)
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endpoint, err := getAPIEndpoint(c.baseURL, "/oauth/v2/token")
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if err != nil {
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return "", fmt.Errorf("wallbag: unable to get token endpoint: %v", err)
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}
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clt := client.New(endpoint)
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response, err := clt.PostForm(values)
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if err != nil {
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return "", fmt.Errorf("wallabag: unable to get access token: %v", err)
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}
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if response.HasServerFailure() {
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return "", fmt.Errorf("wallabag: request failed, status=%d", response.StatusCode)
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}
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token, err := decodeTokenResponse(response.Body)
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if err != nil {
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return "", err
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}
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return token.AccessToken, nil
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}
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func getAPIEndpoint(baseURL, path string) (string, error) {
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u, err := url.Parse(baseURL)
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if err != nil {
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return "", fmt.Errorf("wallabag: invalid API endpoint: %v", err)
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}
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u.Path = path
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return u.String(), nil
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}
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type tokenResponse struct {
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AccessToken string `json:"access_token"`
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Expires int `json:"expires_in"`
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RefreshToken string `json:"refresh_token"`
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Scope string `json:"scope"`
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TokenType string `json:"token_type"`
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}
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func decodeTokenResponse(body io.Reader) (*tokenResponse, error) {
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var token tokenResponse
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decoder := json.NewDecoder(body)
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if err := decoder.Decode(&token); err != nil {
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return nil, fmt.Errorf("wallabag: unable to decode token response: %v", err)
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}
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return &token, nil
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}
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