miniflux/internal/integration/shaarli/shaarli.go
2023-08-13 18:51:50 -07:00

91 lines
2.5 KiB
Go

// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package shaarli // import "miniflux.app/v2/internal/integration/shaarli"
import (
"bytes"
"crypto/hmac"
"crypto/sha512"
"encoding/base64"
"encoding/json"
"fmt"
"net/http"
"strings"
"time"
"miniflux.app/v2/internal/url"
"miniflux.app/v2/internal/version"
)
const defaultClientTimeout = 10 * time.Second
type Client struct {
baseURL string
apiSecret string
}
func NewClient(baseURL, apiSecret string) *Client {
return &Client{baseURL: baseURL, apiSecret: apiSecret}
}
func (c *Client) AddLink(entryURL, entryTitle string) error {
if c.baseURL == "" || c.apiSecret == "" {
return fmt.Errorf("shaarli: missing base URL or API secret")
}
apiEndpoint, err := url.JoinBaseURLAndPath(c.baseURL, "/api/v1/links")
if err != nil {
return fmt.Errorf("shaarli: invalid API endpoint: %v", err)
}
requestBody, err := json.Marshal(&addLinkRequest{
URL: entryURL,
Title: entryTitle,
Private: true,
})
if err != nil {
return fmt.Errorf("shaarli: unable to encode request body: %v", err)
}
request, err := http.NewRequest("POST", apiEndpoint, bytes.NewReader(requestBody))
if err != nil {
return fmt.Errorf("shaarli: 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 "+c.generateBearerToken())
httpClient := &http.Client{Timeout: defaultClientTimeout}
response, err := httpClient.Do(request)
if err != nil {
return fmt.Errorf("shaarli: unable to send request: %v", err)
}
defer response.Body.Close()
if response.StatusCode != http.StatusCreated {
return fmt.Errorf("shaarli: unable to add link: url=%s status=%d", apiEndpoint, response.StatusCode)
}
return nil
}
func (c *Client) generateBearerToken() string {
header := strings.TrimRight(base64.URLEncoding.EncodeToString([]byte(`{"typ":"JWT", "alg":"HS256"}`)), "=")
payload := strings.TrimRight(base64.URLEncoding.EncodeToString([]byte(fmt.Sprintf(`{"iat": %d}`, time.Now().Unix()))), "=")
mac := hmac.New(sha512.New, []byte(c.apiSecret))
mac.Write([]byte(header + "." + payload))
signature := strings.TrimRight(base64.URLEncoding.EncodeToString(mac.Sum(nil)), "=")
return header + "." + payload + "." + signature
}
type addLinkRequest struct {
URL string `json:"url"`
Title string `json:"title"`
Private bool `json:"private"`
}