Add Betula integration

internal/integration/betula/betula.go

@@ -0,0 +1,57 @@
+package betula
+
+import (
+	"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 {
+	url   string
+	token string
+}
+
+func NewClient(url, token string) *Client {
+	return &Client{url: url, token: token}
+}
+
+func (c *Client) CreateBookmark(entryURL, entryTitle string, tags []string) error {
+	apiEndpoint, err := urllib.JoinBaseURLAndPath(c.url, "/save-link")
+	if err != nil {
+		return fmt.Errorf("betula: unable to generate save-link endpoint: %v", err)
+	}
+
+	values := url.Values{}
+	values.Add("url", entryURL)
+	values.Add("title", entryTitle)
+	values.Add("tags", strings.Join(tags, ","))
+
+	request, err := http.NewRequest(http.MethodPost, apiEndpoint+"?"+values.Encode(), nil)
+	if err != nil {
+		return fmt.Errorf("betula: unable to create request: %v", err)
+	}
+
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.Header.Set("User-Agent", "Miniflux/"+version.Version)
+	request.AddCookie(&http.Cookie{Name: "betula-token", Value: c.token})
+
+	httpClient := &http.Client{Timeout: defaultClientTimeout}
+	response, err := httpClient.Do(request)
+	if err != nil {
+		return fmt.Errorf("betula: unable to send request: %v", err)
+	}
+	defer response.Body.Close()
+
+	if response.StatusCode >= 400 {
+		return fmt.Errorf("betula: unable to create bookmark: url=%s status=%d", apiEndpoint, response.StatusCode)
+	}
+
+	return nil
+}