Add Linkwarden integration

internal/integration/integration.go

@@ -12,6 +12,7 @@ import (
 	"miniflux.app/v2/internal/integration/instapaper"
 	"miniflux.app/v2/internal/integration/linkace"
 	"miniflux.app/v2/internal/integration/linkding"
+	"miniflux.app/v2/internal/integration/linkwarden"
 	"miniflux.app/v2/internal/integration/matrixbot"
 	"miniflux.app/v2/internal/integration/notion"
 	"miniflux.app/v2/internal/integration/nunuxkeeper"
@@ -228,6 +229,27 @@ func SendEntry(entry *model.Entry, userIntegrations *model.Integration) {
 		}
 	}
 
+	if userIntegrations.LinkwardenEnabled {
+		slog.Debug("Sending entry to linkwarden",
+			slog.Int64("user_id", userIntegrations.UserID),
+			slog.Int64("entry_id", entry.ID),
+			slog.String("entry_url", entry.URL),
+		)
+
+		client := linkwarden.NewClient(
+			userIntegrations.LinkwardenURL,
+			userIntegrations.LinkwardenAPIKey,
+		)
+		if err := client.CreateBookmark(entry.URL, entry.Title); err != nil {
+			slog.Error("Unable to send entry to Linkwarden",
+				slog.Int64("user_id", userIntegrations.UserID),
+				slog.Int64("entry_id", entry.ID),
+				slog.String("entry_url", entry.URL),
+				slog.Any("error", err),
+			)
+		}
+	}
+
 	if userIntegrations.ReadwiseEnabled {
 		slog.Debug("Sending entry to Readwise",
 			slog.Int64("user_id", userIntegrations.UserID),

internal/integration/linkwarden/linkwarden.go

@@ -0,0 +1,80 @@
+// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package linkwarden // import "miniflux.app/v2/internal/integration/linkwarden"
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+
+	"miniflux.app/v2/internal/urllib"
+	"miniflux.app/v2/internal/version"
+)
+
+const defaultClientTimeout = 10 * time.Second
+
+type Client struct {
+	baseURL string
+	apiKey  string
+}
+
+func NewClient(baseURL, apiKey string) *Client {
+	return &Client{baseURL: baseURL, apiKey: apiKey}
+}
+
+func (c *Client) CreateBookmark(entryURL, entryTitle string) error {
+	if c.baseURL == "" || c.apiKey == "" {
+		return fmt.Errorf("linkwarden: missing base URL or API key")
+	}
+
+	apiEndpoint, err := urllib.JoinBaseURLAndPath(c.baseURL, "/api/v1/links")
+	if err != nil {
+		return fmt.Errorf(`linkwarden: invalid API endpoint: %v`, err)
+	}
+
+	requestBody, err := json.Marshal(&linkwardenBookmark{
+		Url:         entryURL,
+		Name:        "",
+		Description: "",
+		Tags:        []string{},
+		Collection:  map[string]interface{}{},
+	})
+
+	if err != nil {
+		return fmt.Errorf("linkwarden: unable to encode request body: %v", err)
+	}
+
+	request, err := http.NewRequest(http.MethodPost, apiEndpoint, bytes.NewReader(requestBody))
+	if err != nil {
+		return fmt.Errorf("linkwarden: unable to create request: %v", err)
+	}
+
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("User-Agent", "Miniflux/"+version.Version)
+	request.AddCookie(&http.Cookie{Name: "__Secure-next-auth.session-token", Value: c.apiKey})
+	request.AddCookie(&http.Cookie{Name: "next-auth.session-token", Value: c.apiKey})
+
+	httpClient := &http.Client{Timeout: defaultClientTimeout}
+	response, err := httpClient.Do(request)
+	if err != nil {
+		return fmt.Errorf("linkwarden: unable to send request: %v", err)
+	}
+	defer response.Body.Close()
+
+	if response.StatusCode >= 400 {
+		return fmt.Errorf("linkwarden: unable to create link: url=%s status=%d", apiEndpoint, response.StatusCode)
+	}
+
+	return nil
+}
+
+type linkwardenBookmark struct {
+	Url         string                 `json:"url"`
+	Name        string                 `json:"name"`
+	Description string                 `json:"description"`
+	Tags        []string               `json:"tags"`
+	Collection  map[string]interface{} `json:"collection"`
+}