Initial scaffold: project structure, .gitignore, go.mod

internal/syncthing/config_xml.go

@@ -0,0 +1,27 @@
+package syncthing
+
+import (
+	"encoding/xml"
+	"os"
+
+	"git.davoryn.de/calic/syncwarden/internal/config"
+)
+
+type syncthingConfig struct {
+	GUI struct {
+		APIKey string `xml:"apikey"`
+	} `xml:"gui"`
+}
+
+// DiscoverAPIKey reads the Syncthing config.xml and extracts the API key.
+func DiscoverAPIKey() (string, error) {
+	data, err := os.ReadFile(config.SyncthingConfigPath())
+	if err != nil {
+		return "", err
+	}
+	var cfg syncthingConfig
+	if err := xml.Unmarshal(data, &cfg); err != nil {
+		return "", err
+	}
+	return cfg.GUI.APIKey, nil
+}