refactor(runtime): move executor utilities to helps package and update references

internal/runtime/executor/helps/proxy_helpers.go

@@ -0,0 +1,79 @@
+package helps
+
+import (
+	"context"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
+	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
+	"github.com/router-for-me/CLIProxyAPI/v6/sdk/proxyutil"
+	log "github.com/sirupsen/logrus"
+)
+
+// NewProxyAwareHTTPClient creates an HTTP client with proper proxy configuration priority:
+// 1. Use auth.ProxyURL if configured (highest priority)
+// 2. Use cfg.ProxyURL if auth proxy is not configured
+// 3. Use RoundTripper from context if neither are configured
+//
+// Parameters:
+//   - ctx: The context containing optional RoundTripper
+//   - cfg: The application configuration
+//   - auth: The authentication information
+//   - timeout: The client timeout (0 means no timeout)
+//
+// Returns:
+//   - *http.Client: An HTTP client with configured proxy or transport
+func NewProxyAwareHTTPClient(ctx context.Context, cfg *config.Config, auth *cliproxyauth.Auth, timeout time.Duration) *http.Client {
+	httpClient := &http.Client{}
+	if timeout > 0 {
+		httpClient.Timeout = timeout
+	}
+
+	// Priority 1: Use auth.ProxyURL if configured
+	var proxyURL string
+	if auth != nil {
+		proxyURL = strings.TrimSpace(auth.ProxyURL)
+	}
+
+	// Priority 2: Use cfg.ProxyURL if auth proxy is not configured
+	if proxyURL == "" && cfg != nil {
+		proxyURL = strings.TrimSpace(cfg.ProxyURL)
+	}
+
+	// If we have a proxy URL configured, set up the transport
+	if proxyURL != "" {
+		transport := buildProxyTransport(proxyURL)
+		if transport != nil {
+			httpClient.Transport = transport
+			return httpClient
+		}
+		// If proxy setup failed, log and fall through to context RoundTripper
+		log.Debugf("failed to setup proxy from URL: %s, falling back to context transport", proxyURL)
+	}
+
+	// Priority 3: Use RoundTripper from context (typically from RoundTripperFor)
+	if rt, ok := ctx.Value("cliproxy.roundtripper").(http.RoundTripper); ok && rt != nil {
+		httpClient.Transport = rt
+	}
+
+	return httpClient
+}
+
+// buildProxyTransport creates an HTTP transport configured for the given proxy URL.
+// It supports SOCKS5, HTTP, and HTTPS proxy protocols.
+//
+// Parameters:
+//   - proxyURL: The proxy URL string (e.g., "socks5://user:pass@host:port", "http://host:port")
+//
+// Returns:
+//   - *http.Transport: A configured transport, or nil if the proxy URL is invalid
+func buildProxyTransport(proxyURL string) *http.Transport {
+	transport, _, errBuild := proxyutil.BuildHTTPTransport(proxyURL)
+	if errBuild != nil {
+		log.Errorf("%v", errBuild)
+		return nil
+	}
+	return transport
+}