Adding upstream version 0.8.9.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pkg/services/rocketchat/rocketchat.go

@@ -0,0 +1,103 @@
+package rocketchat
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/nicholas-fedor/shoutrrr/pkg/services/standard"
+	"github.com/nicholas-fedor/shoutrrr/pkg/types"
+)
+
+// defaultHTTPTimeout is the default timeout for HTTP requests.
+const defaultHTTPTimeout = 10 * time.Second
+
+// ErrNotificationFailed indicates a failure in sending the notification.
+var ErrNotificationFailed = errors.New("notification failed")
+
+// Service sends notifications to a pre-configured Rocket.Chat channel or user.
+type Service struct {
+	standard.Standard
+	Config *Config
+	Client *http.Client
+}
+
+// Initialize configures the service with a URL and logger.
+func (service *Service) Initialize(configURL *url.URL, logger types.StdLogger) error {
+	service.SetLogger(logger)
+
+	service.Config = &Config{}
+	if service.Client == nil {
+		service.Client = &http.Client{
+			Timeout: defaultHTTPTimeout, // Set a default timeout
+		}
+	}
+
+	if err := service.Config.SetURL(configURL); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// GetID returns the service identifier.
+func (service *Service) GetID() string {
+	return Scheme
+}
+
+// Send delivers a notification message to Rocket.Chat.
+func (service *Service) Send(message string, params *types.Params) error {
+	var res *http.Response
+
+	var err error
+
+	config := service.Config
+	apiURL := buildURL(config)
+	json, _ := CreateJSONPayload(config, message, params)
+
+	ctx, cancel := context.WithTimeout(context.Background(), defaultHTTPTimeout)
+	defer cancel()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, apiURL, bytes.NewReader(json))
+	if err != nil {
+		return fmt.Errorf("creating request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+
+	res, err = service.Client.Do(req)
+	if err != nil {
+		return fmt.Errorf(
+			"posting to URL: %w\nHOST: %s\nPORT: %s",
+			err,
+			config.Host,
+			config.Port,
+		)
+	}
+
+	defer res.Body.Close()
+
+	if res.StatusCode != http.StatusOK {
+		resBody, _ := io.ReadAll(res.Body)
+
+		return fmt.Errorf("%w: %d %s", ErrNotificationFailed, res.StatusCode, resBody)
+	}
+
+	return nil
+}
+
+// buildURL constructs the API URL for Rocket.Chat based on the Config.
+func buildURL(config *Config) string {
+	base := config.Host
+	if config.Port != "" {
+		base = net.JoinHostPort(config.Host, config.Port)
+	}
+
+	return fmt.Sprintf("https://%s/hooks/%s/%s", base, config.TokenA, config.TokenB)
+}