Adding upstream version 0.8.9.

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

pkg/services/teams/teams_service.go

@@ -0,0 +1,164 @@
+package teams
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/nicholas-fedor/shoutrrr/pkg/format"
+	"github.com/nicholas-fedor/shoutrrr/pkg/services/standard"
+	"github.com/nicholas-fedor/shoutrrr/pkg/types"
+)
+
+// MaxSummaryLength defines the maximum length for a notification summary.
+const MaxSummaryLength = 20
+
+// TruncatedSummaryLen defines the length for a truncated summary.
+const TruncatedSummaryLen = 21
+
+// Service sends notifications to Microsoft Teams.
+type Service struct {
+	standard.Standard
+	Config *Config
+	pkr    format.PropKeyResolver
+}
+
+// Send delivers a notification message to Microsoft Teams.
+func (service *Service) Send(message string, params *types.Params) error {
+	config := service.Config
+	if err := service.pkr.UpdateConfigFromParams(config, params); err != nil {
+		service.Logf("Failed to update params: %v", err)
+	}
+
+	return service.doSend(config, message)
+}
+
+// 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{}
+	service.pkr = format.NewPropKeyResolver(service.Config)
+
+	return service.Config.SetURL(configURL)
+}
+
+// GetID returns the service identifier.
+func (service *Service) GetID() string {
+	return Scheme
+}
+
+// GetConfigURLFromCustom converts a custom URL to a service URL.
+func (service *Service) GetConfigURLFromCustom(customURL *url.URL) (*url.URL, error) {
+	webhookURLStr := strings.TrimPrefix(customURL.String(), "teams+")
+	tempURL, err := url.Parse(webhookURLStr)
+	if err != nil {
+		return nil, fmt.Errorf("parsing custom URL %q: %w", webhookURLStr, err)
+	}
+
+	webhookURL := &url.URL{
+		Scheme: tempURL.Scheme,
+		Host:   tempURL.Host,
+		Path:   tempURL.Path,
+	}
+
+	config, err := ConfigFromWebhookURL(*webhookURL)
+	if err != nil {
+		return nil, err
+	}
+
+	config.Color = ""
+	config.Title = ""
+
+	query := customURL.Query()
+	for key, vals := range query {
+		if vals[0] != "" {
+			switch key {
+			case "color":
+				config.Color = vals[0]
+			case "host":
+				config.Host = vals[0]
+			case "title":
+				config.Title = vals[0]
+			}
+		}
+	}
+
+	return config.GetURL(), nil
+}
+
+// doSend sends the notification to Teams using the configured webhook URL.
+func (service *Service) doSend(config *Config, message string) error {
+	lines := strings.Split(message, "\n")
+	sections := make([]section, 0, len(lines))
+
+	for _, line := range lines {
+		sections = append(sections, section{Text: line})
+	}
+
+	summary := config.Title
+	if summary == "" && len(sections) > 0 {
+		summary = sections[0].Text
+		if len(summary) > MaxSummaryLength {
+			summary = summary[:TruncatedSummaryLen]
+		}
+	}
+
+	payload, err := json.Marshal(payload{
+		CardType:   "MessageCard",
+		Context:    "http://schema.org/extensions",
+		Markdown:   true,
+		Title:      config.Title,
+		ThemeColor: config.Color,
+		Summary:    summary,
+		Sections:   sections,
+	})
+	if err != nil {
+		return fmt.Errorf("marshaling payload to JSON: %w", err)
+	}
+
+	if config.Host == "" {
+		return ErrMissingHost
+	}
+
+	postURL := BuildWebhookURL(
+		config.Host,
+		config.Group,
+		config.Tenant,
+		config.AltID,
+		config.GroupOwner,
+		config.ExtraID,
+	)
+
+	// Validate URL before sending
+	if err := ValidateWebhookURL(postURL); err != nil {
+		return err
+	}
+
+	res, err := safePost(postURL, payload)
+	if err != nil {
+		return fmt.Errorf("%w: %s", ErrSendFailed, err.Error())
+	}
+	defer res.Body.Close() // Move defer after error check
+
+	if res.StatusCode != http.StatusOK {
+		return fmt.Errorf("%w: %s", ErrSendFailedStatus, res.Status)
+	}
+
+	return nil
+}
+
+// safePost performs an HTTP POST with a pre-validated URL.
+// Validation is already done; this wrapper isolates the call.
+//
+//nolint:gosec,noctx // Ignoring G107: Potential HTTP request made with variable url
+func safePost(url string, payload []byte) (*http.Response, error) {
+	res, err := http.Post(url, "application/json", bytes.NewBuffer(payload))
+	if err != nil {
+		return nil, fmt.Errorf("making HTTP POST request: %w", err)
+	}
+
+	return res, nil
+}