Adding upstream version 0.8.9.

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

pkg/services/telegram/telegram_config.go

@@ -0,0 +1,94 @@
+package telegram
+
+import (
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+
+	"github.com/nicholas-fedor/shoutrrr/pkg/format"
+	"github.com/nicholas-fedor/shoutrrr/pkg/types"
+)
+
+// Scheme identifies this service in configuration URLs.
+const (
+	Scheme = "telegram"
+)
+
+// ErrInvalidToken indicates an invalid Telegram token format or content.
+var (
+	ErrInvalidToken      = errors.New("invalid telegram token")
+	ErrNoChannelsDefined = errors.New("no channels defined in config URL")
+)
+
+// Config holds settings for the Telegram notification service.
+type Config struct {
+	Token        string    `url:"user"`
+	Preview      bool      `           default:"Yes"  desc:"If disabled, no web page preview will be displayed for URLs" key:"preview"`
+	Notification bool      `           default:"Yes"  desc:"If disabled, sends Message silently"                         key:"notification"`
+	ParseMode    parseMode `           default:"None" desc:"How the text Message should be parsed"                       key:"parsemode"`
+	Chats        []string  `                          desc:"Chat IDs or Channel names (using @channel-name)"             key:"chats,channels"`
+	Title        string    `           default:""     desc:"Notification title, optionally set by the sender"            key:"title"`
+}
+
+// Enums returns the fields that use an EnumFormatter for their values.
+func (config *Config) Enums() map[string]types.EnumFormatter {
+	return map[string]types.EnumFormatter{
+		"ParseMode": ParseModes.Enum,
+	}
+}
+
+// GetURL generates a URL from the current configuration values.
+func (config *Config) GetURL() *url.URL {
+	resolver := format.NewPropKeyResolver(config)
+
+	return config.getURL(&resolver)
+}
+
+// SetURL updates the configuration from a URL representation.
+func (config *Config) SetURL(url *url.URL) error {
+	resolver := format.NewPropKeyResolver(config)
+
+	return config.setURL(&resolver, url)
+}
+
+// getURL constructs a URL from the Config's fields using the provided resolver.
+func (config *Config) getURL(resolver types.ConfigQueryResolver) *url.URL {
+	tokenParts := strings.Split(config.Token, ":")
+
+	return &url.URL{
+		User:       url.UserPassword(tokenParts[0], tokenParts[1]),
+		Host:       Scheme,
+		Scheme:     Scheme,
+		ForceQuery: true,
+		RawQuery:   format.BuildQuery(resolver),
+	}
+}
+
+// setURL updates the Config from a URL using the provided resolver.
+func (config *Config) setURL(resolver types.ConfigQueryResolver, url *url.URL) error {
+	password, _ := url.User.Password()
+
+	token := url.User.Username() + ":" + password
+	if url.String() != "telegram://dummy@dummy.com" {
+		if !IsTokenValid(token) {
+			return fmt.Errorf("%w: %s", ErrInvalidToken, token)
+		}
+	}
+
+	for key, vals := range url.Query() {
+		if err := resolver.Set(key, vals[0]); err != nil {
+			return fmt.Errorf("setting config property %q from URL query: %w", key, err)
+		}
+	}
+
+	if url.String() != "telegram://dummy@dummy.com" {
+		if len(config.Chats) < 1 {
+			return ErrNoChannelsDefined
+		}
+	}
+
+	config.Token = token
+
+	return nil
+}