Initial commit: Null DRM Official

Capture, decrypt, and restream toolkit with compiled-in app modules
(RTE, TG4, BBC), on-device MITM proxy, streamd control plane, and www.
BBC module.yaml is published (clear streams); other module values stay local.

apps/agent/internal/config/config.go

@@ -0,0 +1,104 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"time"
+
+	"gopkg.in/yaml.v3"
+
+	"drmdecryption/repo"
+)
+
+type Config struct {
+	StreamdURL      string   `yaml:"streamd_url"`
+	Token           string   `yaml:"token"`
+	PollIntervalSec int      `yaml:"poll_interval_sec"`
+	DataDir         string   `yaml:"data_dir"`
+	Workers         int      `yaml:"workers"`
+	MaxAttempts     int      `yaml:"max_attempts"`
+	CaptureWaitSec  int      `yaml:"capture_wait_sec"`
+	Devices         []string `yaml:"devices"`
+	Python          string   `yaml:"python"`
+	WVD             string   `yaml:"wvd"` // path to .wvd device file (required for key fetch)
+	UserAgent       string   `yaml:"user_agent"`
+	AgentID         string   `yaml:"agent_id"`
+}
+
+func (c Config) PollInterval() time.Duration {
+	if c.PollIntervalSec <= 0 {
+		return 30 * time.Second
+	}
+	return time.Duration(c.PollIntervalSec) * time.Second
+}
+
+func (c Config) CaptureWait() time.Duration {
+	if c.CaptureWaitSec <= 0 {
+		return 180 * time.Second
+	}
+	return time.Duration(c.CaptureWaitSec) * time.Second
+}
+
+func Load(path string) (Config, error) {
+	root := repo.Root()
+	if path == "" {
+		path = filepath.Join(root, "apps", "agent", "agent.yaml")
+	}
+	var cfg Config
+	raw, err := os.ReadFile(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			cfg = defaults(root)
+			return cfg, nil
+		}
+		return cfg, err
+	}
+	if err := yaml.Unmarshal(raw, &cfg); err != nil {
+		return cfg, err
+	}
+	cfg = applyDefaults(cfg, root)
+	return cfg, nil
+}
+
+func defaults(root string) Config {
+	return applyDefaults(Config{}, root)
+}
+
+func applyDefaults(cfg Config, root string) Config {
+	if cfg.StreamdURL == "" {
+		cfg.StreamdURL = "http://127.0.0.1:8083"
+	}
+	if cfg.Token == "" {
+		cfg.Token = os.Getenv("STREAMD_TOKEN")
+	}
+	if cfg.PollIntervalSec <= 0 {
+		cfg.PollIntervalSec = 30
+	}
+	if cfg.DataDir == "" {
+		cfg.DataDir = filepath.Join(root, ".cache", "agent")
+	} else if !filepath.IsAbs(cfg.DataDir) {
+		cfg.DataDir = filepath.Join(root, cfg.DataDir)
+	}
+	if cfg.Workers <= 0 {
+		cfg.Workers = 1
+	}
+	if cfg.MaxAttempts <= 0 {
+		cfg.MaxAttempts = 5
+	}
+	if cfg.CaptureWaitSec <= 0 {
+		cfg.CaptureWaitSec = 180
+	}
+	if cfg.AgentID == "" {
+		// Stable across restarts so the same agent can reclaim after a crash.
+		// Override in apps/agent/agent.yaml when running multiple agents.
+		host, _ := os.Hostname()
+		if host == "" {
+			host = "agent"
+		}
+		cfg.AgentID = host
+	}
+	if cfg.WVD != "" && !filepath.IsAbs(cfg.WVD) {
+		cfg.WVD = filepath.Join(root, cfg.WVD)
+	}
+	return cfg
+}