Add call protocol, Rmux. Update AmneziaWG. Fixes and improvements

transport/call/telemost/config.go

@@ -0,0 +1,72 @@
+package telemost
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+
+	"github.com/sagernet/sing-box/transport/call/common"
+	"github.com/sagernet/sing/common/logger"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type TMConfig struct {
+	AppVersion string
+	SDKVersion string
+}
+
+func FetchConfig(dialer N.Dialer, logger logger.ContextLogger) (TMConfig, error) {
+	var cfg TMConfig
+	page, err := common.HttpGet(dialer, "https://telemost.yandex.ru/")
+	if err != nil {
+		return cfg, fmt.Errorf("failed to fetch telemost.yandex.ru: %w", err)
+	}
+	stateRe := regexp.MustCompile(`<script[^>]*id="preloaded-state"[^>]*>([\s\S]*?)</script>`)
+	stateMatch := stateRe.FindSubmatch(page)
+	if stateMatch == nil {
+		return cfg, fmt.Errorf("preloaded-state not found in page")
+	}
+	var state struct {
+		Config struct {
+			AppVersion string `json:"appVersion"`
+		} `json:"config"`
+		AppVersion string `json:"appVersion"`
+	}
+	if err := json.Unmarshal(stateMatch[1], &state); err != nil {
+		return cfg, fmt.Errorf("failed to parse preloaded-state: %w", err)
+	}
+	cfg.AppVersion = state.Config.AppVersion
+	if cfg.AppVersion == "" {
+		cfg.AppVersion = state.AppVersion
+	}
+	if cfg.AppVersion == "" {
+		return cfg, fmt.Errorf("appVersion not found in preloaded-state")
+	}
+	logger.Debug(fmt.Sprintf("[config] appVersion=%s", cfg.AppVersion))
+	bundleRe := regexp.MustCompile(`https://telemost\.yastatic\.net/s3/telemost/_/main\.\w+\.[a-f0-9]+\.js`)
+	bundleURL := bundleRe.FindString(string(page))
+	if bundleURL == "" {
+		return cfg, fmt.Errorf("main bundle URL not found in page")
+	}
+	logger.Debug(fmt.Sprintf("[config] Found bundle: %s", bundleURL))
+	bundle, err := common.HttpGet(dialer, bundleURL)
+	if err != nil {
+		return cfg, fmt.Errorf("failed to fetch bundle: %w", err)
+	}
+	sdkVerPatterns := []*regexp.Regexp{
+		regexp.MustCompile(`goloom_sdk_version:"(\d+\.\d+\.\d+)"`),
+		regexp.MustCompile(`"@yandex-video-platform/goloom-sdk":"(\d+\.\d+\.\d+)"`),
+		regexp.MustCompile(`goloom-sdk\.(\d+\.\d+\.\d+)\.js`),
+	}
+	for _, re := range sdkVerPatterns {
+		if m := re.FindSubmatch(bundle); m != nil {
+			cfg.SDKVersion = string(m[1])
+			break
+		}
+	}
+	if cfg.SDKVersion == "" {
+		return cfg, fmt.Errorf("goloom SDK version not found in bundle")
+	}
+	logger.Debug(fmt.Sprintf("[config] app=%s sdk=%s", cfg.AppVersion, cfg.SDKVersion))
+	return cfg, nil
+}