feat(forwarding): Add unified forwarding system docs and tests; update build script and .gitignore

ts/common/port80-adapter.ts

@@ -0,0 +1,87 @@
+import * as plugins from '../plugins.js';
+
+import type { 
+  IForwardConfig as ILegacyForwardConfig, 
+  IDomainOptions 
+} from './types.js';
+
+import type { 
+  IForwardConfig as INewForwardConfig 
+} from '../smartproxy/types/forwarding.types.js';
+
+/**
+ * Converts a new forwarding configuration target to the legacy format
+ * for Port80Handler
+ */
+export function convertToLegacyForwardConfig(
+  forwardConfig: INewForwardConfig
+): ILegacyForwardConfig {
+  // Determine host from the target configuration
+  const host = Array.isArray(forwardConfig.target.host)
+    ? forwardConfig.target.host[0]  // Use the first host in the array
+    : forwardConfig.target.host;
+  
+  return {
+    ip: host,
+    port: forwardConfig.target.port
+  };
+}
+
+/**
+ * Creates Port80Handler domain options from a domain name and forwarding config
+ */
+export function createPort80HandlerOptions(
+  domain: string,
+  forwardConfig: INewForwardConfig
+): IDomainOptions {
+  // Determine if we should redirect HTTP to HTTPS
+  let sslRedirect = false;
+  if (forwardConfig.http?.redirectToHttps) {
+    sslRedirect = true;
+  }
+  
+  // Determine if ACME maintenance should be enabled
+  // Enable by default for termination types, unless explicitly disabled
+  const requiresTls = 
+    forwardConfig.type === 'https-terminate-to-http' || 
+    forwardConfig.type === 'https-terminate-to-https';
+  
+  const acmeMaintenance = 
+    requiresTls && 
+    forwardConfig.acme?.enabled !== false;
+  
+  // Set up forwarding configuration
+  const options: IDomainOptions = {
+    domainName: domain,
+    sslRedirect,
+    acmeMaintenance
+  };
+  
+  // Add ACME challenge forwarding if configured
+  if (forwardConfig.acme?.forwardChallenges) {
+    options.acmeForward = {
+      ip: Array.isArray(forwardConfig.acme.forwardChallenges.host) 
+        ? forwardConfig.acme.forwardChallenges.host[0]
+        : forwardConfig.acme.forwardChallenges.host,
+      port: forwardConfig.acme.forwardChallenges.port
+    };
+  }
+  
+  // Add HTTP forwarding if this is an HTTP-only config or if HTTP is enabled
+  const supportsHttp = 
+    forwardConfig.type === 'http-only' || 
+    (forwardConfig.http?.enabled !== false &&
+     (forwardConfig.type === 'https-terminate-to-http' || 
+      forwardConfig.type === 'https-terminate-to-https'));
+  
+  if (supportsHttp) {
+    options.forward = {
+      ip: Array.isArray(forwardConfig.target.host) 
+        ? forwardConfig.target.host[0]
+        : forwardConfig.target.host,
+      port: forwardConfig.target.port
+    };
+  }
+  
+  return options;
+}