miniflux/internal/integration/wallabag/wallabag.go
2023-08-14 21:49:02 -07:00

143 lines
4.2 KiB
Go

// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package wallabag // import "miniflux.app/v2/internal/integration/wallabag"
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"net/url"
"strings"
"time"
"miniflux.app/v2/internal/urllib"
"miniflux.app/v2/internal/version"
)
const defaultClientTimeout = 10 * time.Second
type Client struct {
baseURL string
clientID string
clientSecret string
username string
password string
onlyURL bool
}
func NewClient(baseURL, clientID, clientSecret, username, password string, onlyURL bool) *Client {
return &Client{baseURL, clientID, clientSecret, username, password, onlyURL}
}
func (c *Client) CreateEntry(entryURL, entryTitle, entryContent string) error {
if c.baseURL == "" || c.clientID == "" || c.clientSecret == "" || c.username == "" || c.password == "" {
return fmt.Errorf("wallabag: missing base URL, client ID, client secret, username or password")
}
accessToken, err := c.getAccessToken()
if err != nil {
return err
}
return c.createEntry(accessToken, entryURL, entryTitle, entryContent)
}
func (c *Client) createEntry(accessToken, entryURL, entryTitle, entryContent string) error {
apiEndpoint, err := urllib.JoinBaseURLAndPath(c.baseURL, "/api/entries.json")
if err != nil {
return fmt.Errorf("wallbag: unable to generate entries endpoint: %v", err)
}
if c.onlyURL {
entryContent = ""
}
requestBody, err := json.Marshal(&createEntryRequest{
URL: entryURL,
Title: entryTitle,
Content: entryContent,
})
if err != nil {
return fmt.Errorf("wallbag: unable to encode request body: %v", err)
}
request, err := http.NewRequest(http.MethodPost, apiEndpoint, bytes.NewReader(requestBody))
if err != nil {
return fmt.Errorf("wallbag: unable to create request: %v", err)
}
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Accept", "application/json")
request.Header.Set("User-Agent", "Miniflux/"+version.Version)
request.Header.Set("Authorization", "Bearer "+accessToken)
httpClient := &http.Client{Timeout: defaultClientTimeout}
response, err := httpClient.Do(request)
if err != nil {
return fmt.Errorf("wallabag: unable to send request: %v", err)
}
defer response.Body.Close()
if response.StatusCode >= 400 {
return fmt.Errorf("wallabag: unable to get access token: url=%s status=%d", apiEndpoint, response.StatusCode)
}
return nil
}
func (c *Client) getAccessToken() (string, error) {
values := url.Values{}
values.Add("grant_type", "password")
values.Add("client_id", c.clientID)
values.Add("client_secret", c.clientSecret)
values.Add("username", c.username)
values.Add("password", c.password)
apiEndpoint, err := urllib.JoinBaseURLAndPath(c.baseURL, "/oauth/v2/token")
if err != nil {
return "", fmt.Errorf("wallbag: unable to generate token endpoint: %v", err)
}
request, err := http.NewRequest(http.MethodPost, apiEndpoint, strings.NewReader(values.Encode()))
if err != nil {
return "", fmt.Errorf("wallbag: unable to create request: %v", err)
}
request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
request.Header.Set("Accept", "application/json")
request.Header.Set("User-Agent", "Miniflux/"+version.Version)
httpClient := &http.Client{Timeout: defaultClientTimeout}
response, err := httpClient.Do(request)
if err != nil {
return "", fmt.Errorf("wallabag: unable to send request: %v", err)
}
defer response.Body.Close()
if response.StatusCode >= 400 {
return "", fmt.Errorf("wallabag: unable to get access token: url=%s status=%d", apiEndpoint, response.StatusCode)
}
var responseBody tokenResponse
if err := json.NewDecoder(response.Body).Decode(&responseBody); err != nil {
return "", fmt.Errorf("wallabag: unable to decode token response: %v", err)
}
return responseBody.AccessToken, nil
}
type tokenResponse struct {
AccessToken string `json:"access_token"`
Expires int `json:"expires_in"`
RefreshToken string `json:"refresh_token"`
Scope string `json:"scope"`
TokenType string `json:"token_type"`
}
type createEntryRequest struct {
URL string `json:"url"`
Title string `json:"title"`
Content string `json:"content,omitempty"`
}