add localstorage clearer, sessionstorage cleaer, and cachebuster modifiers

handlers/proxy.go

@@ -32,25 +32,27 @@ func NewProxySiteHandler(opts *ProxyOptions) fiber.Handler {
 			SetFiberCtx(c).
 			SetDebugLogging(opts.Verbose).
 			SetRequestModifications(
-				// rx.SpoofJA3fingerprint(ja3, "Googlebot"),
-				// rx.MasqueradeAsFacebookBot(),
-				// rx.MasqueradeAsGoogleBot(),
-				rx.DeleteOutgoingCookies(),
+				//rx.SpoofJA3fingerprint(ja3, "Googlebot"),
+				rx.AddCacheBusterQuery(),
+				rx.MasqueradeAsGoogleBot(),
 				rx.ForwardRequestHeaders(),
-				// rx.SpoofReferrerFromGoogleSearch(),
-				rx.SpoofReferrerFromLinkedInPost(),
-				// rx.RequestWaybackMachine(),
-				// rx.RequestArchiveIs(),
+				rx.DeleteOutgoingCookies(),
+				rx.SpoofReferrerFromRedditPost(),
+				//rx.SpoofReferrerFromLinkedInPost(),
+				//rx.RequestWaybackMachine(),
+				//rx.RequestArchiveIs(),
 			).
 			AddResponseModifications(
-				tx.ForwardResponseHeaders(),
+				//tx.ForwardResponseHeaders(),
+				tx.DeleteIncomingCookies(),
+				tx.DeleteLocalStorageData(),
+				tx.DeleteSessionStorageData(),
 				tx.BypassCORS(),
 				tx.BypassContentSecurityPolicy(),
-				// tx.DeleteIncomingCookies(),
 				tx.RewriteHTMLResourceURLs(),
 				tx.PatchTrackerScripts(),
 				tx.PatchDynamicResourceURLs(),
-				tx.BlockElementRemoval(".article-content"),
+				//tx.BlockElementRemoval(".article-content"),
 			// tx.SetContentSecurityPolicy("default-src * 'unsafe-inline' 'unsafe-eval' data: blob:;"),
 			)
 

proxychain/proxychain.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	http "github.com/bogdanfinn/fhttp"
 	tls_client "github.com/bogdanfinn/tls-client"
+	profiles "github.com/bogdanfinn/tls-client/profiles"
 	"io"
 	"log"
 	"net/url"
@@ -192,15 +193,6 @@ func (chain *ProxyChain) _initializeRequest() (*http.Request, error) {
 		return nil, fmt.Errorf("unsupported request method from client: '%s'", chain.Context.Method())
 	}
 
-	/*
-		// copy client request headers to upstream request headers
-		forwardHeaders := func(key []byte, val []byte) {
-			req.Header.Set(string(key), string(val))
-		}
-		clientHeaders := &chain.Context.Request().Header
-		clientHeaders.VisitAll(forwardHeaders)
-	*/
-
 	return req, nil
 }
 
@@ -312,9 +304,10 @@ func (chain *ProxyChain) SetFiberCtx(ctx *fiber.Ctx) *ProxyChain {
 	url, err := chain.extractURL()
 	if err != nil {
 		chain.abortErr = chain.abort(err)
-	}
+	} else {
 		chain.Request.URL = url
 		fmt.Printf("extracted URL: %s\n", chain.Request.URL)
+	}
 
 	return chain
 }
@@ -359,7 +352,12 @@ func (chain *ProxyChain) abort(err error) error {
 	// defer chain._reset()
 	chain.abortErr = err
 	chain.Context.Response().SetStatusCode(500)
-	e := fmt.Errorf("ProxyChain error for '%s': %s", chain.Request.URL.String(), err.Error())
+	var e error
+	if chain.Request.URL != nil {
+		e = fmt.Errorf("ProxyChain error for '%s': %s", chain.Request.URL.String(), err.Error())
+	} else {
+		e = fmt.Errorf("ProxyChain error: '%s'", err.Error())
+	}
 	chain.Context.SendString(e.Error())
 	log.Println(e.Error())
 	return e
@@ -382,8 +380,8 @@ func NewProxyChain() *ProxyChain {
 
 	options := []tls_client.HttpClientOption{
 		tls_client.WithTimeoutSeconds(20),
-		tls_client.WithRandomTLSExtensionOrder(),
-		// tls_client.WithClientProfile(profiles.Chrome_117),
+		//tls_client.WithRandomTLSExtensionOrder(),
+		tls_client.WithClientProfile(profiles.Chrome_117),
 		// tls_client.WithNotFollowRedirects(),
 		// tls_client.WithCookieJar(jar), // create cookieJar instance and pass it as argument
 	}

proxychain/requestmodifiers/add_cache_buster_query.go

@@ -0,0 +1,28 @@
+package requestmodifiers
+
+import (
+	"ladder/proxychain"
+	"math/rand"
+)
+
+// AddCacheBusterQuery modifies query params to add a random parameter key
+// In order to get the upstream network stack to serve a fresh copy of the page.
+func AddCacheBusterQuery() proxychain.RequestModification {
+	return func(chain *proxychain.ProxyChain) error {
+		chain.AddOnceRequestModifications(
+			ModifyQueryParams("ord", randomString(15)),
+		)
+
+		return nil
+	}
+}
+
+func randomString(length int) string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789."
+
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[rand.Intn(len(charset))]
+	}
+	return string(b)
+}

proxychain/requestmodifiers/modify_query_params.go

@@ -1,6 +1,7 @@
 package requestmodifiers
 
 import (
+	"fmt"
 	"net/url"
 
 	"ladder/proxychain"
@@ -12,6 +13,7 @@ func ModifyQueryParams(key string, value string) proxychain.RequestModification
 	return func(chain *proxychain.ProxyChain) error {
 		q := chain.Request.URL.Query()
 		chain.Request.URL.RawQuery = modifyQueryParams(key, value, q)
+		fmt.Println(chain.Request.URL.String())
 		return nil
 	}
 }

proxychain/responsemodifiers/delete_localstorage_data.go

@@ -0,0 +1,28 @@
+package responsemodifiers
+
+import (
+	_ "embed"
+	"strings"
+
+	"ladder/proxychain"
+)
+
+// DeleteLocalStorageData deletes localstorage cookies.
+// If the page works once in a fresh incognito window, but fails
+// for subsequent loads, try this response modifier alongside
+// DeleteSessionStorageData and DeleteIncomingCookies
+func DeleteLocalStorageData() proxychain.ResponseModification {
+	return func(chain *proxychain.ProxyChain) error {
+		// don't add rewriter if it's not even html
+		ct := chain.Response.Header.Get("content-type")
+		if !strings.HasPrefix(ct, "text/html") {
+			return nil
+		}
+
+		chain.AddOnceResponseModifications(
+			InjectScriptBeforeDOMContentLoaded(`window.sessionStorage.clear()`),
+			InjectScriptAfterDOMContentLoaded(`window.sessionStorage.clear()`),
+		)
+		return nil
+	}
+}

proxychain/responsemodifiers/delete_sessionstorage_data.go

@@ -0,0 +1,28 @@
+package responsemodifiers
+
+import (
+	_ "embed"
+	"strings"
+
+	"ladder/proxychain"
+)
+
+// DeleteSessionStorageData deletes localstorage cookies.
+// If the page works once in a fresh incognito window, but fails
+// for subsequent loads, try this response modifier alongside
+// DeleteLocalStorageData and DeleteIncomingCookies
+func DeleteSessionStorageData() proxychain.ResponseModification {
+	return func(chain *proxychain.ProxyChain) error {
+		// don't add rewriter if it's not even html
+		ct := chain.Response.Header.Get("content-type")
+		if !strings.HasPrefix(ct, "text/html") {
+			return nil
+		}
+
+		chain.AddOnceResponseModifications(
+			InjectScriptBeforeDOMContentLoaded(`window.sessionStorage.clear()`),
+			InjectScriptAfterDOMContentLoaded(`window.sessionStorage.clear()`),
+		)
+		return nil
+	}
+}

proxychain/responsemodifiers/modify_incoming_cookies.go

@@ -13,8 +13,12 @@ import (
 // DeleteIncomingCookies prevents ALL cookies from being sent from the proxy server
 // back down to the client.
 func DeleteIncomingCookies(_ ...string) proxychain.ResponseModification {
-	return func(px *proxychain.ProxyChain) error {
-		px.Response.Header.Del("Set-Cookie")
+	return func(chain *proxychain.ProxyChain) error {
+		chain.Response.Header.Del("Set-Cookie")
+		chain.AddOnceResponseModifications(
+			InjectScriptBeforeDOMContentLoaded(`document.cookie = ""`),
+			InjectScriptAfterDOMContentLoaded(`document.cookie = ""`),
+		)
 		return nil
 	}
 }

proxychain/ruleset/rule_reqmod_types.gen.go

@@ -16,6 +16,10 @@ var rqmModMap map[string]RequestModifierFactory
 func init() {
 	rqmModMap = make(map[string]RequestModifierFactory)
 
+	  rqmModMap["AddCacheBusterQuery"] = func(_ ...string) proxychain.RequestModification {
+    return rx.AddCacheBusterQuery()
+  }
+
   rqmModMap["ForwardRequestHeaders"] = func(_ ...string) proxychain.RequestModification {
     return rx.ForwardRequestHeaders()
   }

proxychain/ruleset/rule_resmod_types.gen.go

@@ -36,6 +36,14 @@ func init() {
     return tx.SetContentSecurityPolicy(params[0])
   }
 
+  rsmModMap["DeleteLocalStorageData"] = func(_ ...string) proxychain.ResponseModification {
+    return tx.DeleteLocalStorageData()
+  }
+
+  rsmModMap["DeleteSessionStorageData"] = func(_ ...string) proxychain.ResponseModification {
+    return tx.DeleteSessionStorageData()
+  }
+
   rsmModMap["ForwardResponseHeaders"] = func(_ ...string) proxychain.ResponseModification {
     return tx.ForwardResponseHeaders()
   }